CN102173357B - Elevator device - Google Patents

Abstract

The invention discloses an elevator device, which comprises a cage, a cage position detection part, a cage speed detection part, a rope breakage detection part, a storage part and an output part, wherein the storage part stores a cage speed abnormity judgement reference and a rope abnormity judgement reference; the rope abnormity judgement reference serves as a reference for judging whether a main rope is abnormal; the cage speed abnormity judgement reference corresponds to the position of the cage and is an abnormity judgement reference for the speed of the cage; the output part is electrically connected with the cage position detection part, the cage speed detection part and the rope breakage detection part; and the output part compares the cage speed abnormity judgement reference and the rope abnormity judgement reference which are obtained from the storage part with the speed of the cage and the state of the main rope which are calculated according to input of a detection signal, detects whether the speed of the cage and the state of the main rope are abnormal, and outputs a working signal to at least one of a brake device for a tractor and an emergency stopping device when the speed of the cage and the state of the main rope are determined to be abnormal.

Description

Lift appliance

The application is that application number is 200910168369.2, the applying date is on May 31st, 2004, denomination of invention is divided an application for the application for a patent for invention of " lift appliance ".

And application number to be 200910168369.2 application for a patent for invention be application number is the dividing an application for the application for a patent for invention of " lift appliance " that 200480030999.9 (international application no is PCT/JP2004/007857), the applying date be on May 31st, 2004, denomination of invention.

Technical field

The present invention relates to a kind of lift appliance, its basis is obtained position or the speed of car from the information of sensor section, thereby controls the running of car.

Background technology

For example in disclosed existing lift appliance, be pressed against the rotation of the roller on guide rail by detection, the position of the car of obtaining or speed in No. 6-271236, Japanese patent gazette Unexamined Patent.

But in this lift appliance, for example due to the existence of the joint of the variation of the apparent condition of guide rail, guide rail, and the reasons such as wearing and tearing of roller surfaces, roller produces small skidding with respect to guide rail, causes the testing result of car position to produce error.In addition, due to the accumulative total of this error, actual car position and the difference of testing result increase gradually.

Summary of the invention

The present invention proposes in order to address the above problem, and its purpose is to provide a kind of lift appliance, and it can obtain position or the speed of car more exactly.

Lift appliance of the present invention comprises: the car of lifting in hoistway; Primary sensor section, it is for generation of the main detection signal corresponding with the amount of movement of car; Control setup, it is used for obtaining car information according to main detection signal, and controls the running of car according to car information, and above-mentioned car information comprises the either party at least of car position information and car speed information; Aiding sensors section, it is used for having arrived predefined reference position in hoistway by car being detected, produces auxiliary detection signal, and control setup is revised car information according to auxiliary detection signal.

In addition, lift appliance of the present invention comprises: the car of lifting in hoistway; Primary sensor section, it is for generation of the main detection signal corresponding with the amount of movement of car; Control setup, it is used for obtaining car information according to main detection signal, and controls the running of car according to car information, and above-mentioned car information comprises the either party at least of car position information and car speed information; Aiding sensors section, it is used for having arrived predefined reference position in hoistway by car being detected, produces auxiliary detection signal, and control setup monitors according to the error of auxiliary detection signal to car information.

Description of drawings

Fig. 1 is the constructional drawing that schematically shows the lift appliance of embodiment of the present invention 1.

Fig. 2 means the front view of the emergency braking device in Fig. 1.

Fig. 3 means the front view of the state the when emergency braking device in Fig. 2 is worked.

Fig. 4 is the constructional drawing that schematically shows the lift appliance of embodiment of the present invention 2.

Fig. 5 means the front view of the emergency braking device in Fig. 4.

The front view of the emergency braking device when Fig. 6 means work in Fig. 5.

Fig. 7 means the front view of the drive division in Fig. 6.

Fig. 8 is the constructional drawing that schematically shows the lift appliance of embodiment of the present invention 3.

Fig. 9 is the constructional drawing that schematically shows the lift appliance of embodiment of the present invention 4.

Figure 10 is the constructional drawing that schematically shows the lift appliance of embodiment of the present invention 5.

Figure 11 is the constructional drawing that schematically shows the lift appliance of embodiment of the present invention 6.

Figure 12 means another routine constructional drawing of the lift appliance in Figure 11.

Figure 13 is the constructional drawing that schematically shows the lift appliance of embodiment of the present invention 7.

Figure 14 is the constructional drawing that schematically shows the lift appliance of embodiment of the present invention 8.

Figure 15 means another routine front view of the drive division in Fig. 7.

Figure 16 means the plane cross sectional drawing of the emergency braking device of embodiment of the present invention 9.

Figure 17 means the partial cross sectional side elevation view of the emergency braking device of embodiment of the present invention 10.

Figure 18 is the constructional drawing that schematically shows the lift appliance of embodiment of the present invention 11.

Figure 19 means the diagram of curves of the abnormal judgment standard of car speed in the storage part that is stored in Figure 18.

Figure 20 means the diagram of curves of the abnormal judgment standard of car acceleration/accel in the storage part that is stored in Figure 18.

Figure 21 is the constructional drawing that schematically shows the lift appliance of embodiment of the present invention 12.

Figure 22 is the constructional drawing that schematically shows the lift appliance of embodiment of the present invention 13.

Figure 23 means the constructional drawing of rope fastening device in Figure 22 and each rope sensor.

Figure 24 means the constructional drawing of the state that 1 main rope in Figure 23 breaks.

Figure 25 is the constructional drawing that schematically shows the lift appliance of embodiment of the present invention 14.

Figure 26 is the constructional drawing that schematically shows the lift appliance of embodiment of the present invention 15.

Figure 27 means car in Figure 26 and the block diagram of door sensor.

Figure 28 means the block diagram of the open mode of the car gangway in Figure 27.

Figure 29 is the constructional drawing that schematically shows the lift appliance of embodiment of the present invention 16.

Figure 30 means the constructional drawing on the hoistway top in Figure 29.

Figure 31 means the front view of car of the lift appliance of embodiment of the present invention 17.

Figure 32 is the lateral plan of the main portion in Watch with magnifier diagram 31.

Figure 33 means the constructional drawing of the lift appliance of embodiment of the present invention 18.

The specific embodiment

Below, with reference to accompanying drawing, the preferred embodiment of the present invention is described.

Embodiment 1

Fig. 1 is the constructional drawing that schematically shows the lift appliance of embodiment of the present invention 1.In the drawings, be provided with a pair of car guide rail 2 in hoistway 1.Car 3 by car guide rail 2 guiding in the interior lifting of hoistway 1.Dispose the towing machine (not shown) that makes car 3 and counterweight (not shown) lifting in the upper end of hoistway 1.Be wound with main rope 4 on the driving rope sheave of towing machine.Car 3 and counterweight are suspended in hoistway 1 by main rope 4.On car 3, with the opposed a pair of emergency braking device 5 that is equipped with as brake unit of each car guide rail 2.Each emergency braking device 5 is configured in the bottom of car 3.Car 3 is braked by the action of each emergency braking device 5.

And, disposing velocity limiter 6 in the upper end of hoistway 1, this velocity limiter 6 is car speed detecting units that the rising or falling speed to car 3 detects.Velocity limiter 6 has: velocity limiter main body 7 and can be with respect to the governor sheave 8 of velocity limiter main body 7 rotation.Dispose rotatable tension wheel 9 in the bottom of hoistway 1.Be wound with the overspeed governor 10 that is connected with car 3 between governor sheave 8 and tension wheel 9.Overspeed governor 10 move back and forth towards above-below direction together with car 3 with connecting portion car 3.Like this, governor sheave 8 and tension wheel 9 are with the speed rotation corresponding with the rising or falling speed of car 3.

When the rising or falling speed of car 3 reached predefined the first mistake speed, velocity limiter 6 made the brake equipment action of towing machine.And, be provided with the switch portion 11 as efferent in velocity limiter 6, when the descending speed of car 3 reached than first excessively fast the second mistake speed (setting speed), this switch portion 11 outputed to emergency braking device 5 to working signal.Switch portion 11 has contact section 16, and this contact section 16 mechanically opens and closes by overrunning bar, and this pole-footing of overrunning moves according to the centnifugal force of the governor sheave 8 of rotation.Contact section 16 is electrically connected to battery 12 and control panel 13 by feed cable 14 and connecting cable 15 respectively, even this battery 12 is the uninterrupted power supply(ups)s that also can power when having a power failure, this control panel 13 is controlled the running of elevator.

Be connected with control cables (removal cable) between car 3 and control panel 13.In control cables, except many electric wireline and signal wire (SW), also contain the emergent stopping wiring 17 that is connected electrically between control panel 13 and each emergency braking device 5.From the electric power of battery 12 closure by contact section 16,17 offer each emergency braking device 5 by the power supply circuit in feed cable 14, switch portion 11, connecting cable 15, control panel 13 and emergent stopping with connecting up.In addition, delivery unit has: the power supply circuit in connecting cable 15, control panel 13 and emergent stopping are with connecting up 17.

Fig. 2 means the front view of the emergency braking device 5 in Fig. 1, the front view of the emergency braking device 5 when Fig. 3 means work in Fig. 2.In the drawings, be fixed with support unit 18 in the bottom of car 3.Emergency braking device 5 is by support unit 18 supportings.And each emergency braking device 5 has: wedge 19 is car guide rail 2 contacts and a pair of brake component that separates relatively; A pair of actuation part 20 is connected with wedge 19, and wedge 19 is moved with respect to car 3; And a pair of guide part 21, be fixed on support unit 18, will guide towards the direction that contacts with car guide rail 2 by the wedge 19 that actuation part 20 moves.A pair of wedge 19, a pair of actuation part 20 and a pair of guide part 21 are configured in respectively the both sides of car guide rail 2 symmetrically.

Guide part 21 has dip plane 22, and this dip plane 22 tilts with respect to car guide rail 2, makes the interval with car guide rail 2 diminish up.Wedge 19 22 moves along the dip plane.Actuation part 20 has: spring 23 is to the force section of wedge 19 towards the guide part 21 side application of forces of top; And electromagnet 24, the application of force that relies on the electromagnetic force that is caused by energising to overcome spring 23 moves wedge 19 and guide part 21 discretely towards the below.

Spring 23 is connected between support unit 18 and wedge 19.Electromagnet 24 is fixed on support unit 18.Emergent stopping is connected with electromagnet 24 with wiring 17.Be fixed with on wedge 19 and the opposed permanent magnet 25 of electromagnet 24.Carry out energising (with reference to Fig. 1) to electromagnet 24 from battery 12 by the closure of contact section 16 (with reference to Fig. 1).16 (with reference to the Fig. 1) of section cut off to the energising of electromagnet 24 by break, make emergency braking device 5 actions.That is, thus a pair of wedge 19 relies on the elastic restoring force of springs 23 and moves by being pressed on car guide rail 2 towards the top with respect to car 3.

Below, action is described.When normal operation, contact section 16 closures.Like this, electric power offers electromagnet 24 from battery 12.The electromagnetic attracting force that wedge 19 is caused by energising and remaining on electromagnet 24, thus separate (Fig. 2) with car guide rail 2.

When reaching first such as the speed rising that makes car 3 due to the fracture of main rope 4 etc. when crossing speed, the brake equipment action of towing machine.When after the action of the brake equipment of towing machine, the speed of car 3 further rises and reaches second when crossing speed, and contact section 16 disconnects.Like this, be cut off to the energising of the electromagnet 24 of each emergency braking device 5, wedge 19 relies on the application of force of springs 23 and moves towards the top with respect to car 3.At this moment, wedge 19 is with when the dip plane 22 of guide part 21 contacts, and 22 move along the dip plane.Move by this, wedge 19 contacts with car guide rail 2 and by being pressed on car guide rail 2.Wedge 19 by with the contacting of car guide rail 2, further move towards the top and engaging-in between car guide rail 2 and guide part 21.Like this, produce large friction force between car guide rail 2 and wedge 19, thereby car 3 is braked (Fig. 3).

When removing the braking of car 3, under the state of electromagnet 24 energisings, make car 3 increase in the closure by contact section 16.Like this, wedge 19 moves towards the below, separates with car guide rail 2.

In this lift appliance, due to the switch portion 11 that is connected with battery 12 and 5 electrical connections of each emergency braking device, thereby can be sent to each emergency braking device 5 to the velocity anomaly by the detected car 3 of velocity limiter 6 as electricity work signal from switch portion 11, can make car 3 brakings within the short time after the velocity anomaly that detects car 3.Like this, can reduce the stopping distance of car 3.And, can easily make each emergency braking device 5 synchronous initiations, car 3 is stably stopped.And, according to electricity work signalizing activity, thereby can prevent the misoperation that caused by rocking of car 3 etc. due to emergency braking device 5.

And because emergency braking device 5 has: actuation part 20 makes wedge 19 towards guide part 21 side shiftings of top; And guide part 21, comprising dip plane 22, the wedge 19 that this dip plane will be moved towards the top guides towards the direction that contacts with car guide rail 2, thereby when car 3 descends, can increase reliably the pressing force of 19 pairs of car guide rails 2 of wedge.

And, because actuation part 20 has: spring 23, to wedge 19 towards the top application of force; And electromagnet 24, the application of force that overcomes spring 23 makes wedge 19 move towards the below, thereby can adopt simple structure that wedge 19 is moved.

Embodiment 2

Fig. 4 is the constructional drawing that schematically shows the lift appliance of embodiment of the present invention 2.In the drawings, car 3 has: car main body 27 is provided with car gangway 26; And gate 28, open and close car gangway 26.Be provided with car speed sensor 31 in hoistway 1, this car speed sensor 31 is car speed detecting units that the speed to car 3 detects.Efferent 32 is installed in control panel 13, and this efferent 32 is electrically connected to car speed sensor 31.Battery 12 is connected with efferent 32 by feed cable 14.The electric power that detects for the speed to car 3 offers car speed sensor 31 from efferent 32.Speed detection signal from car speed sensor 31 is imported into efferent 32.

A pair of emergency braking device 33 is installed in the bottom of car 3, and this emergency braking device 33 is brake units that car 3 is braked.Efferent 32 and each emergency braking device 33 use wiring 17 mutually to be electrically connected to by emergent stopping.When the speed of car 3 is the second mistake speed, output to emergency braking device 33 as the working signal that starts with electric power from efferent 32.Emergency braking device 33 moves according to the input of working signal.

Fig. 5 means the front view of the emergency braking device 33 in Fig. 4, the front view of the emergency braking device 33 when Fig. 6 means the work of Fig. 5.In the drawings, emergency braking device 33 has: wedge 34 is to contact and the brake component that separates with car guide rail 2; Actuation part 35 is connected with the bottom of wedge 34; And guide part 36, be configured in the top of wedge 34, and be fixed on car 3.Wedge 34 and actuation part 35 are arranged to can be with respect to guide part 36 up-and-down movements.Wedge 34 namely towards the movement of guide part 36 sides, is guided towards the direction that contacts with car guide rail 2 by guide part 36 along with respect to the movement of guide part 36 towards the top.

Actuation part 35 has: columned contact part 37 can contact and separate with car guide rail 2; Operating mechanism 38 makes contact part 37 towards moving with the direction of separating with car guide rail 2 contacts; And support 39, supporting contact part 37 and operating mechanism 38.Contact part 37 is lighter than wedge 34, in order to can easily move by operating mechanism 38.Operating mechanism 38 has: movable part 40 can and make between contact part 37 and disengaged position that car guide rail 2 separates at the contact position that makes 2 contacts of contact part 37 and car guide rail to move back and forth; And drive division 41, movable part 40 is moved.

Be respectively arranged with supporting pilot hole 42 and movable pilot hole 43 in support 39 and movable part 40.Supporting pilot hole 42 and movable pilot hole 43 are different with respect to the angle of inclination of car guide rail 2.Contact part 37 is slidably mounted in supporting pilot hole 42 and movable pilot hole 43.Contact part 37, and moves along the length direction of supporting pilot hole 42 in the movable interior slip of pilot hole 43 along with moving back and forth of movable part 40.Like this, contact part 37 contacts and separates with car guide rail 2 with suitable angle.When car 3 descended, when contact part 37 contacted with car guide rail 2, wedge 34 and actuation part 35 were braked, towards guide part 36 side shiftings.

The horizontally-guided hole 47 that is provided with on the top of support 39 that along continuous straight runs extends.Wedge 34 is slidably mounted in horizontally-guided hole 47.That is, wedge 34 can move back and forth in the horizontal direction with respect to support 39.

Guide part 36 has dip plane 44 and the contact surface 45 that clips car guide rail 2 configurations.Dip plane 44 tilts with respect to car guide rail 2, makes the interval with car guide rail 2 diminish up.Contact surface 45 can contact and separate with car guide rail 2.Along with wedge 34 and actuation part 35 move towards the top with respect to guide part 36, wedge 34 44 moves along the dip plane.Like this, wedge 34 and contact surface 45 are close to each otherly mobile, and car guide rail 2 is clamped by wedge 34 and contact surface 45.

Fig. 7 means the front view of the drive division 41 in Fig. 6.In the drawings, drive division 41 has: disk spring 46 is mounted in the force section on movable part 40; And electromagnet 48, by the electromagnetic force that is caused by energising, movable part 40 is moved.

Movable part 40 is fixed on the middle body of disk spring 46.Disk spring 46 is out of shape by moving back and forth of movable part 40.The distortion that the application of force direction of disk spring 46 causes according to the movement because of movable part 40 upset between the contact position (solid line) of movable part 40 and disengaged position (long and two-short dash line).Movable part 40 remains on respectively contact position and disengaged position by the application of force of disk spring 46.That is, contact part 37 relies on the application of force of disk spring 46 to keep with contact condition and the released state of car guide rail 2.

Electromagnet 48 has: the first electromagnetism section 49 is fixed on movable part 40; And the second electromagnetism section 50, with the first electromagnetism section 49 arranged opposite.Movable part 40 can move with respect to the second electromagnetism section 50.Emergent stopping is connected with electromagnet 48 with wiring 17.The first electromagnetism section 49 and the second electromagnetism section 50 are by producing electromagnetic force, mutually repelling to electromagnet 48 input service signals.That is, by to electromagnet 48 input service signals, the first electromagnetism section 49 moves towards the direction of separating with the second electromagnetism section 50 together with movable part 40.

In addition, the restoring signal of efferent 32 recovery use after 5 actions of output emergency braking device when recovering.By to electromagnet 48 input restoring signals, the first electromagnetism section 49 and the second electromagnetism section 50 attract each other.Other structure is identical with embodiment 1.

Below, action is described.When normal operation, movable part 40 is positioned at disengaged position, and contact part 37 separates with car guide rail 2 by the application of force of disk spring 46.Under contact part 37 and state that car guide rail 2 separates, wedge 34 keeps the interval with guide part 36, separates with car guide rail 2.

When the detected speed of car speed sensor 31 reaches the first mistake speed, the brake equipment action of towing machine.Afterwards, reach second when crossing speed when the speed rising of car 3 and by the detected speed of car speed sensor 32, working signal outputs to each emergency braking device 33 from efferent 32.By to electromagnet 48 input service signals, the first electromagnetism section 49 and the second electromagnetism section 50 repel mutually.Rely on this electromagnetic repulsive force, movable part 40 moves towards contact position.Meanwhile, contact part 37 moves towards the direction that contacts with car guide rail 2.Before movable part 40 arrived contact position, the application of force direction of disk spring 46 was in the direction of contact position upset for maintenance movable part 40.Like this, contact part 37 contacts and presses car guide rail 2, and wedge 34 and actuation part 35 are braked.

Because car 3 and guide part 36 do not descend with being braked, thereby guide part 36 is towards wedge 34 and actuation part 35 side shiftings of below.Because this moves, wedge 34 is by 44 guiding along the dip plane, and car guide rail 2 is clamped by wedge 34 and contact surface 45.Wedge 34 by with the contacting of car guide rail 2, further move towards the top, and engaging-in between car guide rail 2 and dip plane 44.Like this, producing large friction force between car guide rail 2 and wedge 34 and between car guide rail 2 and contact surface 45, thereby car 3 is braked.

When recovering, restoring signal is sent to electromagnet 48 from efferent 32.Like this, the first electromagnetism section 49 and the second electromagnetism section 50 attract each other, and movable part 40 moves towards disengaged position.Meanwhile, contact part 37 moves towards the direction of separating with car guide rail 2.Before movable part 40 arrives disengaged position, the application of force direction upset of disk spring 46, movable part 40 is maintained at disengaged position.Under this state, car 3 rises, and wedge 34 and pressing of 45 pairs of car guide rails 2 of contact surface are disengaged.

In this lift appliance, owing to not only obtaining the effect identical with embodiment 1, and due to for the speed that detects car 3 at the interior car speed sensor 31 that arranges of hoistway 1, thereby do not need to use velocity limiter and overspeed governor, can reduce the installing space of lift appliance integral body.

And because actuation part 35 has: contact part 37 can contact and separate with car guide rail 2; And operating mechanism 38, make contact part 37 towards moving with the direction of separating with car guide rail 2 contacts, thereby, light by the weight ratio wedge 34 that makes contact part 37, can reduce the propulsive effort of 38 pairs of contact parts 37 of operating mechanism, can make operating mechanism's 38 miniaturizations.And, by making contact part 37 light weights, can increase the moving velocity of contact part 37, can shorten producing the required time of braking force.

And because drive division 41 has: disk spring 46 remains on contact position and disengaged position with movable part 40; And electromagnet 48, by energising, movable part 40 is moved, thereby, can by only switching on to electromagnet 48, movable part 40 be remained on contact position or disengaged position reliably when movable part 40 moves.

Embodiment 3

Fig. 8 is the constructional drawing that schematically shows the lift appliance of embodiment of the present invention 3.In the drawings, 26 are provided with and open and close a sensor 58 in the car gangway, and this opens and closes sensor 58 is that the door that the open and-shut mode to gate 28 detects opens and closes detecting unit.The efferent 59 that is arranged on control panel 13 is connected by control cables and door switching sensor 58.And car speed sensor 31 is electrically connected to efferent 59.Be imported into efferent 59 from the speed detection signal of car speed sensor 31 with from the switching detection signal that door opens and closes sensor 58.At efferent 59, by the input speed detection signal with open and close detection signal, can hold the speed of car 3 and the open and-shut mode of car gangway 26.

Efferent 59 uses wiring 17 to be connected with emergency braking device 33 by emergent stopping.Efferent 59 is according to from the speed detection signal of car speed sensor 31 and the switching detection signal that opens and closes sensor 58 from door, under the state of opening in car gangway 26, and output services signal when car 3 lifting.Working signal uses wiring 17 to be sent to emergency braking device 33 by emergent stopping.Other structure is identical with embodiment 2.

In this lift appliance, the car speed sensor 31 that detects due to the speed to the car 3 and door that the open and-shut mode of gate 28 detects is opened and closed a sensor 58 be electrically connected to efferent 59, and under the state of opening in car gangway 26, when car 3 descends, working signal outputs to emergency braking device 33 from efferent 59, thereby can prevent that car 3 from descending under 26 open modes of car gangway.

In addition, emergency braking device 33 can also be arranged on car 3 upside down.Can prevent that like this, also car 3 from rising under 26 open modes of car gangway.

Embodiment 4

Fig. 9 is the constructional drawing that schematically shows the lift appliance of embodiment of the present invention 4.In the drawings, run through being inserted with fracture and detecting wire 61 in main rope 4, it is rope that the fracture to main rope 4 the detects detecting units that rupture that this fracture detects wire 61.In detecting wire 61, fracture have weak current to flow through.Main rope 4 has non-cracking according to having or not the energising of weak current to detect.The efferent 62 that is arranged on control panel 13 is electrically connected to fracture detection wire 61.When fracture detected wire 61 fracture, the rope break signal that detects the energising shutoff signal of wire 61 as fracture was imported into efferent 62.And car speed sensor 31 is electrically connected to efferent 62.

Efferent 62 uses wiring 17 to be connected with emergency braking device 33 by emergent stopping.Efferent 62 bases are from the speed detection signal of car speed sensor 31 and detect the rope break signal of wire 61 from rupturing, output services signal when main rope 4 fracture.Working signal uses wiring 17 to be sent to emergency braking device 33 by emergent stopping.Other structure is identical with embodiment 2.

In this lift appliance, the car speed sensor 31 that detects due to the speed to the car 3 and fracture that the fracture of main rope 4 detects is detected wire 61 be electrically connected to efferent 62, and when main rope 4 fracture, working signal is output to emergency braking device 33 from efferent 62, thereby, detect by the speed detection of car 3 and the fracture of main rope 4, can brake the car 3 that descends with abnormal speed more reliably.

In addition, in above-mentioned example, as rope fracture method of inspection, use the fracture to running through insertion in main rope 4 to detect the method that wire 61 has or not energising to detect, yet also can use, the tension variation of for example main rope 4 is carried out method for measuring.In the case, on the rope fastening device of main rope 4, tension draftomter is set.

Embodiment 5

Figure 10 is the constructional drawing that schematically shows the lift appliance of embodiment of the present invention 5.In the drawings, be provided with car position sensor 65 in hoistway 1, this car position sensor 65 is car position detecting units that the position of car 3 is detected.Car position sensor 65 and car speed sensor 31 are electrically connected to efferent 66 on being arranged on control panel 13.Efferent 66 has storage part 67, and this storage part 67 stores the control figure, position, speed, the acceleration-deceleration of the car 3 when this control figure comprises normal operation and stop the information such as floor.Be imported into efferent 66 from the speed detection signal of car speed sensor 31 and from the cage position signal of car position sensor 65.

Efferent 66 uses wiring 17 to be connected with emergency braking device 33 by emergent stopping.At efferent 66, comparing based on the speed of the car 3 of speed detection signal and cage position signal and position (measured value) and speed and position (setting value) based on the car 3 that is stored in the control figure in storage part 67.When the deviation of measured value and setting value surpassed defined threshold, efferent 66 outputed to emergency braking device 33 to working signal.Herein, defined threshold refers to be used to car 3 is stopped by normal brake application not and the MIN measured value of the end collision of hoistway 1 and the deviation of setting value.Other structure is identical with embodiment 2.

In this lift appliance, due to when the deviation from the measured value of car speed sensor 31 and car position sensor 65 and the setting value of controlling figure surpasses defined threshold, efferent 66 output services signals, thereby can prevent the end collision of car 3 and hoistway 1.

Embodiment 6

Figure 11 is the constructional drawing that schematically shows the lift appliance of embodiment of the present invention 6.In the drawings, dispose in hoistway 1: upper car 71 is first cars; And lower car 72, be the second car that is positioned at the below of car 71.Upper car 71 and lower car 72 by car guide rail 2 guiding in the interior lifting of hoistway 1.Upper end in hoistway 1 is provided with: the first towing machine (not shown) makes counterweight (not shown) lifting of car 71 and upper car; And second towing machine (not shown), make lower car 72 and lower car with counterweight (not shown) lifting.Be wound with the first main rope (not shown) on the driving rope sheave of the first towing machine, be wound with the second main rope (not shown) on the driving rope sheave of the second towing machine.By the first main rope hanging, lower car 72 and lower car use counterweight by the second main rope hanging with counterweight for upper car 71 and upper car.

Be provided with car speed sensor 73 and lower car speed sensor 74 in hoistway 1, on this, car speed sensor 73 and lower car speed sensor 74 are car speed detecting units that the speed to the speed of upper car 71 and lower car 72 detects.And, be provided with car position sensor 75 and lower car position sensor 76 in hoistway 1, on this, car position sensor 75 and lower car position sensor 76 are car position detecting units that the position of the position of upper car 71 and lower car 72 is detected.

In addition, the car motion detection unit has: upper car speed sensor 73, lower car speed sensor 74, upper car position sensor 75 and lower car position sensor 76.

Car is installed with emergency braking device 77 in the bottom of upper car 71, this on, car is the brake units that have with emergency braking device 33 same structures of use in embodiment 2 with emergency braking device 77.Lower car is installed with emergency braking device 78 in the bottom of lower car 72, this time car is to have and the brake unit of upper car use emergency braking device 77 same structures with emergency braking device 78.

Efferent 79 is installed in control panel 13.Upper car speed sensor 73, lower car speed sensor 74, upper car position sensor 75 and lower car position sensor 76 are electrically connected to efferent 79.And battery 12 is connected with efferent 79 by feed cable 14.From the upper car speed detection signal of upper car speed sensor 73, from the lower car speed detection signal of lower car speed sensor 74, be imported into efferent 79 from the upper car position detection signal of upper car position sensor 75 and from the lower car position detection signal of lower car position sensor 76.That is, the information from the car motion detection unit is imported into efferent 79.

Efferent 79 uses wiring 17 to be connected with emergency braking device 78 with lower car with emergency braking device 77 with upper car by emergent stopping.And, efferent 79 is according to the information from the car motion detection unit, end to upper car 71 or lower car 72 and hoistway 1 has collisionless and upper car 71 and lower car 72 to have collisionless to predict, when doping collision, working signal is outputed to upper car emergency braking device 77 and lower car emergency braking device 78.Upper car moves according to the input of working signal with emergency braking device 78 with emergency braking device 77 and lower car.

In addition, monitoring unit has car motion detection unit and efferent 79.The running state of upper car 71 and lower car 72 is monitored by monitoring unit.Other structure is identical with embodiment 2.

Below, action is described.At efferent 79, by to the information of efferent 79 input from the car motion detection unit, there are collisionless and upper car 71 and lower car 72 to have collisionless to predict to the end of upper car 71 or lower car 72 and hoistway 1.When for example upward the fracture prediction of the first main rope of car 71 goes out upper car 71 and 72 collision of lower car according to suspention when efferent 79, from efferent 79, working signal is outputed to upper car emergency braking device 77 and lower car emergency braking device 78.Like this, car is moved with emergency braking device 77 and lower car with emergency braking device 78, upper car 71 and lower car 72 are braked.

In this lift appliance, because monitoring unit has: the car motion detection unit, detect upper car 71 and lower car 72 actual act separately in same hoistway 1 interior lifting; And efferent 79, there is collisionless to predict according to the information from the car motion detection unit to upper car 71 and lower car 72, when doping collision, working signal is outputed to upper car emergency braking device 77 and lower car emergency braking device 78, thereby, even upper car 71 and lower car 72 speed separately do not reach the speed set, when doping upper car 71 and 72 collision of lower car, car is moved with emergency braking device 78 with emergency braking device 77 and lower car, can avoid car 71 and 72 collisions of lower car.

And, because the car motion detection unit has upper car speed sensor 73, lower car speed sensor 74, upper car position sensor 75 and lower car position sensor 76, thereby, can adopt simple structure easily to detect car 71 and lower car 72 actual act separately.

In addition, in above-mentioned example, efferent 79 is arranged in control panel 13, yet also can be arranged on efferent 79 respectively on upper car 71 and lower car 72.In the case, as shown in figure 12, upper car speed sensor 73, lower car speed sensor 74, upper car position sensor 75 and lower car position sensor 76 and be arranged on upper car 71 on efferent 79 and efferent 79 both sides that are arranged on lower car 72 be electrically connected to respectively.

And, in above-mentioned example, efferent 79 outputs to upper car to working signal and uses emergency braking device 78 both sides with emergency braking device 77 and lower car, yet also can according to the information from the car motion detection unit, working signal only be outputed to upper car use emergency braking device 77 and lower car with one in emergency braking device 78.In the case, at efferent 79, there is collisionless to predict to upper car 71 and lower car 72, and upper car 71 and the action separately of lower car 72 are had or not extremely judges.Working signal outputs to from 79 of efferents and is arranged on the emergency braking device that carries out upper car 71 and lower car 72 on anomalous behavior one side.

Embodiment 7

Figure 13 is the constructional drawing that schematically shows the lift appliance of embodiment of the present invention 7.In the drawings, the upper car efferent 81 as efferent is installed on upper car 71, the lower car efferent 82 as efferent is installed on lower car 72.Upper car speed sensor 73, upper car position sensor 75 and lower car position sensor 76 are electrically connected to efferent 81 with upper car.Lower car speed sensor 74, lower car position sensor 76 and upper car position sensor 75 are electrically connected to efferent 82 with lower car.

Upper car is electrically connected to emergency braking device 77 with upper car with wiring 83 by upper car emergent stopping with efferent 81, and on this, car emergent stopping is with 83 delivery units that are arranged on upper car 71 that connect up.And, upper car with efferent 81 according to from upper car speed sensor 73, upper car position sensor 75 and lower car position sensor 76 information (following be called in the present embodiment " upper car detection information ") separately, there is collisionless to predict upper car 71 with lower car 72, when doping collision, working signal is outputed to upper car emergency braking device 77.And when having inputted upper car with detection information, the car 71 sides operations up of the maximum speed when upper car is supposed lower cars 72 with normal operation with efferent 81 have collisionless to predict upper car 71 with lower car 72.

Lower car is electrically connected to emergency braking device 78 with lower car with wiring 84 by lower car emergent stopping with efferent 82, and this time car emergent stopping is with 84 delivery units that are arranged on lower car 72 that connect up.And, lower car with efferent 82 according to respectively from the information (following be called in the present embodiment " lower car detection information ") of lower car speed sensor 74, lower car position sensor 76 and upper car position sensor 75, there is collisionless to predict lower car 72 with upper car 71, when doping collision, working signal is outputed to lower car emergency braking device 78.And when having inputted time car with detection information, the car 72 sides operations down of the maximum speed when lower car is supposed upper cars 71 with normal operation with efferent 82 have collisionless to predict lower car 72 with upper car 71.

Usually, be failure to actuate with emergency braking device 78 with emergency braking device 77 and lower car in order to make upper car, upper car 71 and lower car 72 are spaced from each other the control of turning round of abundant interval.Other structure is identical with embodiment 6.

Below, action is described.For example when the fracture due to the first main rope of the upper car 71 of suspention make upper car 71 down car 72 sides fall, when upper car 71 approaches lower car 72, upper car dopes the collision of upper car 71 and lower car 72 with efferent 81, lower car dopes the collision of upper car 71 and lower car 72 with efferent 82.Like this, working signal outputs to upper car emergency braking device 77 from upper car with efferent 81, and working signal outputs to lower car emergency braking device 78 from lower car with efferent 82.Like this, car is moved with emergency braking device 77 and lower car with emergency braking device 78, upper car 71 and lower car 72 are braked.

In this lift appliance, owing to not only obtaining the effect identical with embodiment 6, and because upper car speed sensor 73 only is electrically connected to efferent 81 with upper car, lower car speed sensor 74 only is electrically connected to efferent 82 with lower car, thereby, need to be between upper car speed sensor 73 and lower car be with efferent 82 and between lower car speed sensor 74 and upper car are with efferent 81, electric wiring is set, can simplify the operation that arranges of electric wiring.

Embodiment 8

Figure 14 is the constructional drawing that schematically shows the lift appliance of embodiment of the present invention 8.In the drawings, inter-car distance is installed from sensor 91 on upper car 71 and lower car 72, this inter-car distance is that inter-car distance that the distance between upper car 71 and lower car 72 is detected is from detecting unit from sensor 91.Inter-car distance has from sensor 91: laser irradiating part is arranged on car 71; And reflecting part, be arranged on lower car 72.Distance between upper car 71 and lower car 72 is obtained according to the reciprocal time of the laser between laser irradiating part and reflecting part from sensor 91 by inter-car distance.

Upper car speed sensor 73, lower car speed sensor 74, upper car position sensor 75 and inter-car distance are electrically connected to efferent 81 with upper car from sensor 91.Upper car speed sensor 73, lower car speed sensor 74, lower car position sensor 76 and inter-car distance are electrically connected to efferent 82 with lower car from sensor 91.

Upper car with efferent 81 according to respectively from upper car speed sensor 73, lower car speed sensor 74, upper car position sensor 75 and inter-car distance from the information of sensor 91 (following be called in the present embodiment " upper car detection information "), there is collisionless to predict upper car 71 with lower car 72, when doping collision, working signal is outputed to upper car emergency braking device 77.

Lower car with efferent 82 according to respectively from upper car speed sensor 73, lower car speed sensor 74, lower car position sensor 76 and the inter-car distance information (following be called in the present embodiment " lower car detection information ") from sensor 91, there is collisionless to predict lower car 72 with upper car 71, when doping collision, working signal is outputed to lower car emergency braking device 78.Other structure is identical with embodiment 7.

In this lift appliance, according to having collisionless to predict from the information of sensor 91 to upper car 71 and lower car 72 from inter-car distance, thereby can predict more reliably that car 71 and lower car 72 have collisionless due to efferent 79.

In addition, can open and close sensor 58 to the door of embodiment 3 and be applied to lift appliance according to above-mentioned embodiment 6 to 8, be input to efferent opening and closing detection signal, also can detect wire 61 to the fracture of embodiment 4 and be applied to lift appliance according to above-mentioned embodiment 6 to 8, the rope break signal is input to efferent.

And in above-mentioned embodiment 2 to 8, drive division utilizes electromagnetic repulsive force or the electromagnetic attraction of the first electromagnetism section 49 and the second electromagnetism section 50 to drive, yet also can utilize the vortex flow that for example produces within electric conductivity repels plate to drive.In the case, as shown in figure 15, be supplied to electromagnet 48 as the pulse current of working signal, utilize the vortex flow of repulsion plate 51 interior generations fixing on movable part 40 and from the interaction in the magnetic field of electromagnet 48, movable part 40 moves.

And in above-mentioned embodiment 2 to 8, the car speed detecting unit is arranged in hoistway 1, yet also can be arranged on car.In the case, the speed detection signal from the car speed detecting unit is sent to efferent by control cables.

Embodiment 9

Figure 16 means the plane cross sectional drawing of the emergency braking device of embodiment of the present invention 9.In the drawings, emergency braking device 155 has: wedge 34; Actuation part 156 is connected with the bottom of wedge 34; And guide part 36, be configured in the top of wedge 34, be fixed on car 3.Actuation part 156 can be with respect to guide part 36 up-and-down movements together with wedge 34.

Actuation part 156 has: a pair of contact part 157 can contact and separate with car guide rail 2; Pair of links parts 158a, 158b are connected respectively with each contact part 157; Operating mechanism 159 makes a linkage component 158a move with the direction of separating with car guide rail 2 contacts towards each contact part 157 with respect to another linkage component 158b; And support 160, support each contact part 157, each linkage component 158a, 158b and operating mechanism 159.Be fixed with the horizontal shaft 170 that runs through insertion in wedge 34 on support 160.Wedge 34 can move back and forth with respect to horizontal shaft 170 in the horizontal direction.

Each linkage component 158a, 158b are intersecting to the part the other end mutually from an end.And, being provided with link 161 on support 160, this link 161 can make each linkage component 158a, 158b in each linkage component 158a, the cross one another partial rotation of 158b.And a linkage component 158a is arranged to and can rotates centered by connecting portion 161 with respect to another linkage component 158b.

Move towards direction close to each other by each the other end that makes linkage component 158a, 158b, each contact part 157 moves towards the direction that contacts with car guide rail 2 respectively.And, moving towards the direction that is separated from each other by each the other end that makes linkage component 158a, 158b, each contact part 157 moves towards the direction of separating with car guide rail 2 respectively.

Operating mechanism 159 is configured between each the other end of linkage component 158a, 158b.And operating mechanism 159 is supported by each linkage component 158a, 158b.And operating mechanism 159 has: shaft-like movable part 162 is connected with a linkage component 158a; And drive division 163, be fixed on another linkage component 158b, movable part 162 is moved back and forth.Operating mechanism 159 can rotation centered by link 161 together with each linkage component 158a, 158b.

Movable part 162 has: movable core 164 is housed in drive division 163; And pitman 165, movable core 164 and linkage component 158a are interconnected.And movable part 162 can move back and forth between the contact position of each contact part 157 and car guide rail 2 contacts and each contact part 157 and disengaged position that car guide rail 2 separates.

Drive division 163 has: secured core 166, comprise the restriction a pair of restriction 166a of section, the 166b that move of movable core 164 and with each restriction 166a of section, the interconnective side wall portion 166c of 166b, and around movable core 164; The first coil 167 is housed in secured core 166, by energising, movable core 164 is moved towards the direction that contacts with a restriction 166a of section; The second coil 168 is housed in secured core 166, by energising, movable core 164 is moved towards the direction that contacts with another restriction 166b of section; And annular permanent magnnet 169, be configured between the first coil 167 and the second coil 168.

The restriction 166a of section is configured to, when movable part 162 during at disengaged position and movable core 164 butts.And another restriction 166b of section is configured to, when movable part 162 during at contact position and movable core 164 butts.

The first coil 167 and the second coil 168 are the annular electromagnetic coils that surround movable part 162.And the first coil 167 is configured between permanent magnet 169 and restriction 166a of section, and the second coil 168 is configured between permanent magnet 169 and another restriction 166b of section.

Under the state of movable core 164 and the restriction 166a of a section butt, because the space that becomes magnetic resistance is present between movable core 164 and another restriction 166b of section, thereby the magnetic flow of permanent magnet 169 is more than the second coil 168 sides in the first coil 167 sides, movable core 164 with the state of the restriction 166a of a section butt under be held.

And, under the state of movable core 164 and another restriction 166b of section butt, because the space that becomes magnetic resistance is present between movable core 164 and restriction 166a of section, thereby the magnetic flow of permanent magnet 169 is more than the first coil 167 sides in the second coil 168 sides, and movable core 164 still remains under state with another restriction 166b of section butt.

Be imported into the second coil 168 as the electric power from the working signal of efferent 32.And the second coil 168 produces due to the input of working signal the magnetic flux that opposing keeps the power of movable core 164 and the restriction 166a of a section butt.And, be imported into the first coil 167 as the electric power from the restoring signal of efferent 32.And the first coil 167 produces due to the input of restoring signal the magnetic flux that opposing keeps the power of movable core 164 and another restriction 166b of section butt.

Other structure is identical with embodiment 2.

Below, action is described.When normal operation, movable part 162 is positioned at disengaged position, and movable core 164 is by confining force and the restriction 166a of a section butt of permanent magnet 169.Under the state of movable core 164 and the restriction 166a of a section butt, wedge 34 keeps the interval with guide part 36, separates with car guide rail 2.

Afterwards, the same with embodiment 2, by working signal is outputed to each emergency braking device 155 from efferent 32, come to the second coil 168 energisings.Like this, produce magnetic flux around the second coil 168, movable core 164 moves towards the direction that approaches with another restriction 166b of section, moves to contact position from disengaged position.At this moment, each contact part 157 moves towards direction close to each other, contacts with car guide rail 2.Like this, wedge 34 and actuation part 155 are braked.

Afterwards, guide part 36 continues to descend, and approaches with wedge 34 and actuation part 155.Like this, wedge 34 is by 44 guiding along the dip plane, and car guide rail 2 is clamped by wedge 34 and contact surface 45.Afterwards, action the same as embodiment 2 braked car 3.

When recovering, restoring signal is sent to the first coil 167 from efferent 32.Like this, produce magnetic flux around the first coil 167, movable core 164 moves to disengaged position from contact position.Afterwards, the same with embodiment 2, wedge 34 and pressing of 45 pairs of car guide rails 2 of contact surface are disengaged.

In this lift appliance, because operating mechanism 159 moves a pair of contact part 157 by each linkage component 158a, 158b, thereby, not only obtain the effect identical with embodiment 2, and can reduce the quantity be used to the operating mechanism 159 that a pair of contact part 157 is moved.

Embodiment 10

Figure 17 means the partial cross sectional side elevation view of the emergency braking device of embodiment of the present invention 10.In the drawings, emergency braking device 175 has: wedge 34; Actuation part 176 is connected with the bottom of wedge 34; And guide part 36, be configured in the top of wedge 34, be fixed on car 3.

Actuation part 176 has: operating mechanism 159 has the structure identical with embodiment 9; And linkage component 177, the movement of the movable part 162 by operating mechanism 159 is moved.

Operating mechanism 159 is fixed on the bottom of car 3, and movable part 162 is moved back and forth with respect to car 3 along continuous straight runs.Linkage component 177 can be rotatably set on the anchor shaft 180 of the bottom of being fixed in car 3.Anchor shaft 180 is configured in the below of operating mechanism 159.

Linkage component 177 has take anchor shaft 180 as starting point respectively the first connecting rod section 178 of extending towards different directions and second connecting rod section 179, as the global shape of linkage component 177, is ヘ word shape roughly.That is, second connecting rod section 179 is fixed in first connecting rod section 178, and first connecting rod section 178 and second connecting rod section 179 can one rotations centered by anchor shaft 180.

The length of the Length Ratio second connecting rod section 179 of first connecting rod section 178 is long.And, be provided with slotted hole 182 at the terminal part of first connecting rod section 178.Be fixed with the sliding pin 183 that passes through slidably slotted hole 182 in the bottom of wedge 34.That is, wedge 34 is connected with the terminal part of first connecting rod section 178 slidably.The terminal part of movable part 162 rotatably is connected with the terminal part of second connecting rod section 179 by connecting pin 181.

Linkage component 177 can move back and forth making wedge 34 at the disengaged position that separates below guide part 36 and make between the engaging-in actuated position between car guide rail and guide part 36 of wedge 34.During at disengaged position, movable part 162 is outstanding from drive division 163 when linkage component 177, and during at control position, movable part 162 retreats towards drive division 163 when linkage component 177.

Below, action is described.When normal operation, linkage component 177 retreats towards drive division 163 due to movable part 162 and is positioned at disengaged position.At this moment, wedge 34 keeps the interval with guide part 36, separates with car guide rail.

Afterwards, the same with embodiment 2, working signal outputs to each emergency braking device 175 from efferent 32, and movable part 162 is advanced.Like this, linkage component 177 rotates centered by anchor shaft 180, thereby moves towards control position.Like this, wedge 34 contacts with car guide rail with guide part 36, and engaging-in between guide part 36 and car guide rail.Like this, car 3 is braked.

When recovering, restoring signal is sent to emergency braking device 175 from efferent 32, the movable part 162 direction application of force that moved backward.Under this state, make car 3 increase, remove engaging-in towards between guide part 36 and car guide rail of wedge 34.

In this lift appliance, also can obtain the effect identical with embodiment 2.

Embodiment 11

Figure 18 is the constructional drawing that schematically shows the lift appliance of embodiment of the present invention 11.In the drawings, be provided with at hoistway 1 internal upper part: towing machine 101 is actuating devices; And control panel 102, be electrically connected to towing machine 101, control the running of elevator.Towing machine 101 has: actuating device main body 103, and it comprises electrical motor; And drive rope sheave 104, be wound with many main ropes 4, and by 103 rotations of actuating device main body.Be provided with on towing machine 101: deflector sheave 105 is wound with each main rope 4; And towing machine is brake units of the rotation that drives rope sheave 104 being braked for car 3 is slowed down with brake equipment (slow down and use brake equipment) 106.Car 3 and counterweight 107 are suspended in hoistway 1 by each main rope.Car 3 and counterweight 107 pass through the driving of towing machine 101 in the interior lifting of hoistway 1.

Emergency braking device 33, towing machine are electrically connected to monitor unit 108 with brake equipment 106 and control panel 102, and this monitor unit 108 monitors the state of elevator all the time.Car position sensor 109, car speed sensor 110 and car acceleration pick-up 111 are electrically connected to monitor unit 108 respectively, this car position sensor 109 is car position test sections that the position of car 3 is detected, this car speed sensor 110 is car speed test sections that the speed to car 3 detects, and this car acceleration pick-up 111 is car acceleration detecting section that the acceleration/accel to car 3 detects.Car position sensor 109, car speed sensor 110 and car acceleration pick-up 111 are arranged in hoistway 1.

In addition, the detecting unit 112 that state of elevator is detected has: car position sensor 109, car speed sensor 110 and car acceleration pick-up 111.And, as car position sensor 109, can enumerate with lower component etc.: coder, the rotation amount by swivel that the movement of following car 3 is rotated carries out the position that instrumentation detects car 3; Linear encoder detects the position of car 3 by measuring straight-line amount of movement; Perhaps optical displacement analyzer has and for example is arranged on light projector and the light-receiving device in hoistway 1 and is arranged on reflecting plate in car 3, by to be subjected to light institute spended time to measure to detect the position of car 3 from the light projector light projector to light-receiving device.

Monitor unit 108 has: storage part 113, pre-stored have become multiple (this example is 2 kinds) abnormal judgment standard (setting data) that N/R benchmark is arranged for the judgement elevator; And efferent (operational part) 114, detect elevator according to detecting unit 112 and storage part 113 information separately and have or not extremely.In this embodiment, store in storage part 113: the abnormal judgment standard of car speed is the abnormal judgment standard to the speed of car 3; And the abnormal judgment standard of car acceleration/accel, be the abnormal judgment standard to the acceleration/accel of car 3.

Figure 19 means the diagram of curves of the abnormal judgment standard of car speed in the storage part 113 that is stored in Figure 18.In the drawings, the lifting of the car 3 in hoistway 1 is provided with in interval (interval between a terminating layer and another terminating layer): acceleration and deceleration are interval, make car 3 carry out acceleration and deceleration near one and another terminating layer; And constant speed is interval, and car 3 is moved with constant speed between each acceleration and deceleration intervals.

In the abnormal judgment standard of car speed, correspondingly with the position of car 3 be set with 3 grades of test pattern.That is, in the abnormal judgment standard of car speed, the position with car 3 is set with accordingly respectively: normal speed test pattern (normal level) 115, the speed of the car 3 when being normal operation; The first abnormal speed test pattern (the first abnormal level) 116 has the value larger than normal speed test pattern 115; And the second abnormal speed test pattern (the second abnormal level) 117, have than the first large value of abnormal speed test pattern 116.

Normal speed test pattern 115, the first abnormal speed test pattern 116 and the second abnormal speed test pattern 117 are set for respectively and are steady state value constant speed is interval, reduce continuously to terminating layer in the acceleration and deceleration intervals.And the poor and difference the second abnormal speed test pattern 117 and the first abnormal speed test pattern 116 of the first abnormal speed test pattern 116 and normal speed test pattern 115 is not set all the position constants in the lifting interval for.

Figure 20 means the diagram of curves of the abnormal judgment standard of car acceleration/accel in the storage part 113 that is stored in Figure 18.In the drawings, in the abnormal judgment standard of car acceleration/accel, be set with accordingly 3 grades of test pattern with the position of car 3.That is, in the abnormal judgment standard of car acceleration/accel, the position with car 3 is set with accordingly respectively: normal acceleration test pattern (normal level) 118, the acceleration/accel of the car 3 when being normal operation; The first abnormal acceleration detection figure (the first abnormal level) 119 has the value larger than normal acceleration test pattern 118; And the second abnormal acceleration detection figure (the second abnormal level) 120, have than the first large value of abnormal acceleration detection figure 119.

Normal acceleration test pattern 118, the first abnormal acceleration detection figure 119 and the second abnormal acceleration detection figure 120 are set for respectively and are null value constant speed is interval, in an acceleration and deceleration interval be on the occasion of, be negative value in another acceleration and deceleration intervals.And the poor and difference the second abnormal acceleration detection figure 120 and the first abnormal acceleration detection figure 119 of the first abnormal acceleration detection figure 119 and normal acceleration test pattern 118 is not set all the position constants in the lifting interval for.

Namely, in storage part 113, store normal speed test pattern 115, the first abnormal speed test pattern 116 and the second abnormal speed test pattern 117 as the abnormal judgment standard of car speed, store normal acceleration test pattern 118, the first abnormal acceleration detection figure 119 and the second abnormal acceleration detection figure 120 as the abnormal judgment standard of car acceleration/accel.

Emergency braking device 33, control panel 102, towing machine are electrically connected to efferent 114 respectively with brake equipment 106, detecting unit 112 and storage part 113.And, from the position detection signal of car position sensor 109, be input to constantly efferent 114 respectively from the speed detection signal of car speed sensor 110 and from the acceleration detection signal of car acceleration pick-up 111.At efferent 114, calculate the position of car 3 according to the input of position detection signal, and according to speed detection signal and the input separately of acceleration detection signal, calculate respectively the speed of car 3 and the acceleration/accel of car 3 and extremely judge key element as multiple (in this example being two kinds).

When the speed of car 3 surpassed the first abnormal speed test pattern 116, perhaps when the acceleration/accel of car 3 surpassed the first abnormal acceleration detection figure 119, efferent 114 outputed to towing machine brake equipment 106 to working signal (energizing signal).And efferent 114 is outputing to working signal in towing machine with in brake equipment 106, and the danger signal that is used for stopping driving towing machine 101 is outputed to control panel 102.And, when the speed of car 3 surpasses the second abnormal speed test pattern 117, perhaps when the acceleration/accel of car 3 surpassed the second abnormal acceleration detection figure 120, efferent 114 outputed to towing machine brake equipment 106 and emergency braking device 33 to working signal.That is, efferent 114 is determined the brake unit of output services signal according to the speed of car 3 and the intensity of anomaly of acceleration/accel.

Other structure is identical with embodiment 2.

Below, action is described.When from the position detection signal of car position sensor 109, when being imported into efferent 114 from the speed detection signal of car speed sensor 110 and from the acceleration detection signal of car acceleration pick-up 111, at efferent 114, according to the input of each detection signal, calculate position, speed and the acceleration/accel of car 3.Afterwards, at efferent 114, the abnormal judgment standard of the car speed that obtains respectively from storage part 113 and the abnormal judgment standard of car acceleration/accel speed and the acceleration/accel with the car 3 of calculating according to the input of each detection signal compared, the speed of car 3 and acceleration/accel are had or not extremely separately detect.

When normal operation, because the speed of car 3 has the value roughly the same with the normal speed test pattern, and the acceleration/accel of car 3 has the value roughly the same with the normal acceleration test pattern, thereby at efferent 114, the speed and the acceleration/accel that detect car 3 are not abnormal separately, continue the normal operation of elevator.

In the situation that for example make for a certain reason the velocity anomaly of car 3 increase and surpass the first abnormal speed test pattern 116, the speed that detects car 3 at efferent 114 has extremely, working signal outputs to towing machine brake equipment 106 from efferent 114, and danger signal outputs to control panel 102 from efferent 114.Like this, towing machine 101 is stopped, and make towing machine with brake equipment 106 actions, the rotation that drives rope sheave 104 is braked.

And, in the situation that the acceleration/accel abnormal ascending of car 3 also surpasses the first abnormal acceleration/accel setting value 119, working signal and danger signal output to respectively towing machine with brake equipment 106 and control panel 102 from efferent 114, and the rotation that drives rope sheave 104 is braked.

After towing machine is with brake equipment 106 startings, in the situation that the speed of car 3 further rises and surpasses the second abnormal speed setting value 117, working signal is outputed to towing machine with under the state of brake equipment 106 keeping, working signal outputs to emergency braking device 33 from efferent 114.Like this, emergency braking device 33 actions are braked car 3 by the action identical with embodiment 2.

And, after towing machine is with brake equipment 106 actions, in the situation that the acceleration/accel of car 3 further rises and surpasses the second abnormal acceleration/accel setting value 120, working signal is outputed to towing machine with under the state of brake equipment 106 keeping, working signal is outputed to emergency braking device 33 from efferent 114, make emergency braking device 33 actions.

In this lift appliance, because monitor unit 108 is obtained the speed of car 3 and the acceleration/accel of car 3 according to the information from the detecting unit 112 that state of elevator is detected, when any one party in the acceleration/accel of the speed that judges obtained car 3 and car 3 is abnormal, working signal is outputed to towing machine with at least any one party in brake equipment 106 and emergency braking device 33, thereby, the detection that can make 108 pairs of abnormal elevators of monitor unit more early and more reliable can further be shortened from abnormal elevator occuring to producing the time required to the braking force of car 3.Namely, because the so multiple abnormal judgement key element of acceleration/accel of the speed of car 3 and car 3 has or not extremely by monitor unit 108 judgement separately respectively, thereby, the detection that can make 108 pairs of abnormal elevators of monitor unit more early and more reliable can be shortened from abnormal elevator occuring to producing the time required to the braking force of car 3.

And, because monitor unit 108 has storage part 113, the speed that this storage part 113 stores for judgement car 3 has the abnormal judgment standard of N/R car speed and is used for judging that the acceleration/accel of car 3 has the abnormal judgment standard of N/R car acceleration/accel, thereby, speed and the acceleration/accel that can easily change car 3 have N/R judgment standard separately, can easily tackle the design modification of elevator etc.

And, owing to being set with in the abnormal judgment standard of car speed: normal speed test pattern 115; The first abnormal speed test pattern 116 has the value larger than normal speed test pattern 115; And the second abnormal speed test pattern 117, have than the first large value of abnormal speed test pattern 116, and when the speed of car 3 surpasses the first abnormal speed test pattern 116, working signal outputs to towing machine brake equipment 106 from monitor unit 108, when the speed of car 3 surpasses the second abnormal speed test pattern 117, working signal outputs to towing machine brake equipment 106 and emergency braking device 33 from monitor unit 108, thereby, can carry out the stage braking to car 3 according to the velocity anomaly size of car 3.Therefore, can reduce the frequency that applies large impact to car 3, and car 3 is stopped more reliably.

And, owing to being set with in the abnormal judgment standard of car acceleration/accel: normal acceleration test pattern 118; The first abnormal acceleration detection figure 119 has the value larger than normal acceleration test pattern 118; And the second abnormal acceleration detection figure 120, have than the first large value of abnormal acceleration detection figure 119, and when the acceleration/accel of car 3 surpasses the first abnormal acceleration detection figure 119, working signal outputs to towing machine brake equipment 106 from monitor unit 108, when the acceleration/accel of car 3 surpasses the second abnormal acceleration detection figure 120, working signal outputs to towing machine brake equipment 106 and emergency braking device 33 from monitor unit 108, thereby, can extremely big or smallly according to the acceleration/accel of car 3 carry out the stage braking to car 3.Usually, due to before the speed abnormal of car 3, the acceleration/accel abnormal of car 3, thereby can further reduce the frequency that applies large impact to car 3, and car 3 is stopped more reliably.

And, because the position with car 3 is set with normal speed test pattern 115, the first abnormal speed test pattern 116 and the second abnormal speed test pattern 117 accordingly, thereby, can set respectively accordingly the first abnormal speed test pattern 116 and the second abnormal speed test pattern 117 in all positions and the normal speed test pattern 115 in the lifting interval of car 3.Therefore, due to particularly in the acceleration and deceleration intervals, the value of normal speed test pattern 115 is little, thereby, can set the first abnormal speed test pattern 116 and the second abnormal speed test pattern 117 for smaller value respectively, can reduce the impact to car 3 that is caused by braking.

In addition, in above-mentioned example, obtain the speed of car 3 for making monitor unit 108, used car speed sensor 110, yet also can not use car speed sensor 110, but according to derived the speed of car 3 by the position of the detected car 3 of car position sensor 109.That is, also can by to differentiating according to the position of the car 3 of calculating from the position detection signal of car position sensor 109, obtain the speed of car 3.

And, in above-mentioned example, obtain the acceleration/accel of car 3 for making monitor unit 108, used car acceleration pick-up 111, yet also can not use car acceleration pick-up 111, but according to derived the acceleration/accel of car 3 by the position of the detected car 3 of car position sensor 109.That is, also can by to asking second differential according to the position of the car 3 of calculating from the position detection signal of car position sensor 109, obtain the acceleration/accel of car 3.

And, in above-mentioned example, efferent 114 is determined the brake unit of output services signal according to the speed of the car 3 that extremely judges key element and the intensity of anomaly of acceleration/accel as each, yet can pre-determine to each abnormal judgement key element the brake unit of output services signal.

Embodiment 12

Figure 21 is the constructional drawing that schematically shows the lift appliance of embodiment of the present invention 12.In the drawings, the stop at each floor is provided with a plurality of hall call buttons 125.And, be provided with a plurality of destination floor buttons 126 in car 3.And monitor unit 127 has efferent 114.The abnormal judgment standard generating apparatus 128 that generates the abnormal judgment standard of car speed and the abnormal judgment standard of car acceleration/accel is electrically connected to efferent 114.Abnormal judgment standard generating apparatus 128 is electrically connected to each hall call buttons 125 and each destination floor button 126 respectively.Position detection signal is imported into abnormal judgment standard generating apparatus 128 from car position sensor 109 by efferent 114.

Abnormal judgment standard generating apparatus 128 has: storage part 129 (memory device section), and the storage conduct is about a plurality of car speed abnormal judgment standard and a plurality of car acceleration/accels abnormal judgment standard of car 3 at the abnormal judgment standard of all situations of each floor gap lifting; And generating unit 130, select each of the abnormal judgment standard of car speed and the abnormal judgment standard of car acceleration/accel from storage part 129, the abnormal judgment standard of selected car speed and the abnormal judgment standard of car acceleration/accel are outputed to efferent 114.

In the abnormal judgment standard of each car speed, be set with accordingly the 3 grade test pattern identical with the abnormal judgment standard of car speed shown in Figure 19 of embodiment 11 with the position of car 3.And, in the abnormal judgment standard of each car acceleration/accel, be set with accordingly the 3 grade test pattern identical with the abnormal judgment standard of car acceleration/accel shown in Figure 20 of embodiment 11 with the position of car 3.

Generating unit 130 is according to calculate the detection position of car 3 from the information of car position sensor 109, according to calculate the destination of car 3 from the information of at least any one party in each hall call buttons 125 and destination floor button 126.And generating unit 130 is selected with the detection position of being calculated and destination as each of the abnormal judgment standard of car speed of and another terminating layer and the abnormal judgment standard of car acceleration/accel.

Other structure is identical with embodiment 11.

Below, action is described.Position detection signal is input to generating unit 130 from car position sensor 109 by efferent 114 always.When by any one party of wait selecting such as passenger in each hall call buttons 125 and destination floor button 126, and when calling signal is input to generating unit 130 from selected button, in generating unit 130, calculate detection position and the destination of car 3 according to the input of position detection signal and calling signal, select each of the abnormal judgment standard of car speed and the abnormal judgment standard of car acceleration/accel.Afterwards, from generating unit 130, the abnormal judgment standard of selected car speed and the abnormal judgment standard of car acceleration/accel are outputed to efferent 114.

At efferent 114, the same with embodiment 11, the speed of car 3 and acceleration/accel are had or not extremely separately detect.Action afterwards is identical with embodiment 9.

In this lift appliance, due to Information generation car speed abnormal judgment standard and the car acceleration/accel abnormal judgment standard of abnormal judgment standard generating apparatus basis from least any one party in hall call buttons 125 and destination floor button 126, thereby, can generate the abnormal judgment standard of the car speed corresponding with destination and the abnormal judgment standard of car acceleration/accel, even in the situation that selected the different target floor, in the time of also shortening from the elevator abnormal to producing the required time of braking force.

In addition, in above-mentioned example, generating unit 130 is selected respectively one of the abnormal judgment standard of car speed and the abnormal judgment standard of car acceleration/accel from be stored in the interior abnormal judgment standard of a plurality of car speed of storage part 129 and the abnormal judgment standard of a plurality of car acceleration/accels, yet also can according to normal speed figure and the normal acceleration figure of the car 3 that is generated by control panel 102, directly generate respectively abnormal speed test pattern and abnormal acceleration detection figure.

Embodiment 13

Figure 22 is the constructional drawing that schematically shows the lift appliance of embodiment of the present invention 13.In this embodiment, each main rope 4 is connected with the top of car 3 by rope fastening device 131.Monitor unit 108 is arranged on the top of car 3.Car position sensor 109, car speed sensor 110 and a plurality of rope sensor 132 are electrically connected to efferent 114 respectively, these a plurality of rope sensors 132 are arranged on rope fastening device 131, are the rope fracture test sections that has crack-free to detect to each main rope 4 respectively.In addition, detecting unit 112 has: car position sensor 109, car speed sensor 110 and rope sensor 132.

When main rope 4 broke, each rope sensor 132 outputed to respectively efferent 114 to the Safety check-up signal.And, store in storage part 113: the car speed abnormal judgment standard identical with embodiment 11 shown in Figure 19 and the abnormal judgment standard of rope that N/R benchmark is arranged as the main rope 4 of judgement.

Be set with respectively in the abnormal judgment standard of rope: the first abnormal level is at least one state that main rope 4 breaks; And second abnormal level, be the state that all main ropes 4 break.

At efferent 114, calculate the position of car 3 according to the input of position detection signal, and according to speed detection signal and the input separately of Safety check-up signal, calculate respectively the speed of car 3 and the state of main rope 4 and extremely judge key element as multiple (in this example being two kinds).

When the speed of car 3 surpassed the first abnormal speed test pattern 116 (Figure 19), perhaps when at least one main rope 4 broke, efferent 114 outputed to towing machine brake equipment 106 to working signal (energizing signal).And when the speed of car 3 surpassed the second abnormal speed test pattern 117 (Figure 19), perhaps when all main ropes 4 broke, efferent 114 outputed to towing machine brake equipment 106 and emergency braking device 33 to working signal.That is, efferent 114 is determined the brake unit of output services signal according to the speed of car 3 and the state intensity of anomaly separately of main rope 4.

Figure 23 means rope fastening device 131 in Figure 22 and the constructional drawing of each rope sensor 132.And Figure 24 means the constructional drawing of the state that the main rope 4 of 1 in Figure 23 breaks.In the drawings, rope fastening device 131 has a plurality of rope connecting portions 134 that each main rope 4 is connected with car 3.Each rope connecting portion 134 has the elastomeric spring 133 between main rope 4 and car 3.Car 3 can move with respect to the position of each main rope 4 by the flexible of each elastomeric spring 133.

Rope sensor 132 is arranged on each rope connecting portion 134.Each rope sensor 132 is displacement measuring instruments of measuring the elongation of elastomeric spring 133.132 measured signals corresponding with the elongation of elastomeric spring 133 of each rope sensor always output to efferent 114.Measured signal when elastomeric spring 133 reaches specified amount by the elongation that recovers to cause is used as the Safety check-up signal and is input to efferent 114.In addition, can the measurement mechanism of the tension force of each main rope 4 of direct mensuration as the rope sensor setting on each rope connecting portion 134.

Other structure is identical with embodiment 11.

Below, action is described.When from the position detection signal of car position sensor 109, when being imported into efferent 114 from the speed detection signal of car speed sensor 110 and from the Safety check-up signal of each rope sensor 131, at efferent 114, according to the input of each detection signal, calculate the position of car 3, the speed of car 3 and the radical that breaks of main rope 4.Afterwards, at efferent 114, the abnormal judgment standard of the car speed that obtains respectively from storage part 113 and the abnormal judgment standard of rope, compare with the speed of the car 3 of calculating according to the input of each detection signal and the radical that breaks of main rope 4, the state of the speed of car 3 and main rope 4 is had or not extremely separately detect.

When normal operation, because the speed of car 3 has the value roughly the same with the normal speed test pattern, and the radical that breaks of main rope 4 is zero, thereby at efferent 114, detecting the speed of car 3 and the state of main rope 4 does not have extremely separately, continues the normal operation of elevator.

In the situation that for example make for a certain reason the velocity anomaly of car 3 increase and surpass the first abnormal speed test pattern 116 (Figure 19), the speed that detects car 3 at efferent 114 has extremely, working signal outputs to towing machine brake equipment 106 from efferent 114, and danger signal outputs to control panel 102 from efferent 114.Like this, towing machine 101 is stopped, and make towing machine with brake equipment 106 actions, the rotation that drives rope sheave 104 is braked.

And in the situation that at least one main rope 4 breaks, working signal and danger signal output to respectively towing machine with brake equipment 106 and control panel 102 from efferent 114, and the rotation that drives rope sheave 104 is braked.

After towing machine is with brake equipment 106 startings, in the situation that the speed of car 3 further rises and surpasses the second abnormal speed setting value 117 (Figure 19), working signal is outputed to towing machine with under the state of brake equipment 106 keeping, working signal outputs to emergency braking device 33 from efferent 114.Like this, make emergency braking device 33 actions, by the action identical with embodiment 2, car 3 is braked.

And, after towing machine is with brake equipment 106 starting, in the situation that all main ropes 4 break, also working signal is outputed to towing machine with under the state of brake equipment 106 keeping, working signal is outputed to emergency braking device 33 from efferent 114, make emergency braking device 33 actions.

in this lift appliance, because monitor unit 108 is obtained the speed of car 3 and the state of main rope 4 according to the information from the detecting unit 112 that state of elevator is detected, when any one party in the state of the speed that is judged as obtained car 3 and main rope 4 has when abnormal, working signal is outputed to towing machine with at least any one party in brake equipment 106 and emergency braking device 33, thereby, the abnormality detection number of objects increases, not only can detect the velocity anomaly of car 3, and can detect the abnormal state of main rope 4, the abnormality detection that can make 108 pairs of elevators of monitor unit more early and more reliable.Therefore, can further shorten from the elevator abnormal to producing the time required to the braking force of car 3.

In addition, in above-mentioned example, be provided with rope sensor 132 in the rope fastening device 131 on being arranged at car 3, yet also can in the rope fastening device on being arranged at counterweight 107, rope sensor 132 be set.

And, in above-mentioned example, the present invention is applied to the lift appliance as Types Below, that is: making an end of main rope 4 be connected with the other end to be connected with counterweight with car 3 is connected, car 3 and counterweight 107 are suspended in hoistway 1, yet the present invention also can be applied to the lift appliance as Types Below, that is: an end is wound on respectively on car hanging wheel and counterweight hanging wheel with the main rope 4 that the interior works of the other end and hoistway 1 is connected, and car 3 and counterweight 107 are suspended in hoistway 1.In the case, on the works of rope sensor setting in hoistway 1 in set rope fastening device.

Embodiment 14

Figure 25 is the constructional drawing that schematically shows the lift appliance of embodiment of the present invention 14.In this embodiment, the rope sensor 135 as rope fracture test section is the wires that are embedded in each main rope 4.Each wire extends at the length direction of main rope 4.One end of each wire and the other end are electrically connected to efferent 114 respectively.There is weak current to flow through in each wire.Be used as the Safety check-up signal to the cut-out of the energising of each wire respectively and be input to efferent 114.

Other structure and action are identical with embodiment 13.

In this lift appliance, owing to detecting breaking of each main rope 4 according to the cut-out to the energising that is embedded in the wire in each main rope 4, thereby, can not be subject to the impact of the tension variation of each main rope 4 that the acceleration and deceleration by car 3 cause, can detect more reliably each main rope 4 has crack-free.

Embodiment 15

Figure 26 is the constructional drawing that schematically shows the lift appliance of embodiment of the present invention 15.In the drawings, car position sensor 109, car speed sensor 110 and door sensor 140 are electrically connected to efferent 114, and this door sensor 140 is that the gangway that the open and-shut mode to car gangway 26 detects opens and closes test section.In addition, detecting unit 112 has: car position sensor 109, car speed sensor 110 and door sensor 140.

When car gangway 26 is in when closing state, door sensor 140 outputs to efferent 114 closing a detection signal.And, store in storage part 113: the car speed abnormal judgment standard identical with embodiment 11 shown in Figure 19 and the gangway abnormal state judgment standard that N/R benchmark is arranged as the open and-shut mode of judgement car gangway 26.Gangway abnormal state judgment standard is that the state of car 3 liftings and patent door is judged as abnormal abnormal judgment standard.

At efferent 114, calculate the position of car 3 according to the input of position detection signal, and according to speed detection signal and close detection signal input separately, calculate respectively the speed of car 3 and the state of car gangway 26 and extremely judge key element as multiple (in this example being two kinds).

When car 3 lifting under the state of car gangway 26 patent doors, perhaps when the speed of car 3 surpasses the first abnormal speed test pattern 116 (Figure 19), efferent 114 outputs to towing machine to working signal with brake equipment 106.And when the speed of car 3 surpassed the second abnormal speed test pattern 117 (Figure 19), efferent 114 outputed to towing machine brake equipment 106 and emergency braking device 33 to working signal.

Figure 27 means the car 3 of Figure 26 and the block diagram of door sensor 140.And Figure 28 means the block diagram of the state that open the car gangway 26 of Figure 27.In the drawings, door sensor 140 is configured in the top of car gangway 26, and the frontal of car 3 is configured in the central authorities of car gangway 26 relatively.140 pairs of a pair of gates 28 of door sensor detect towards the movement of closing a position separately, output to efferent 114 closing a detection signal.

In addition, as door sensor 140, can list touch sensor or proximity transducer etc., touch sensor by be fixed on each gate 28 on fixed part contact to detect a state that closes, proximity transducer detects by noncontact a state that closes.And, be provided with a pair of layer door 142 that landing doorway 141 is opened and closed at landing doorway 141.When car 3 rested in the stop floor, each layer door 142 engaged with each gate 28 by clamping close device (not shown), moves together with each gate 28.

Other structure is identical with embodiment 11.

Below, action is described.When from the position detection signal of car position sensor 109, from the speed detection signal of car speed sensor 110 and from the closing a detection signal and be imported into efferent 114 of door sensor 140, at efferent 114, according to the input of each detection signal, calculate the speed of position, car 3 of car 3 and the state of car gangway 26.Afterwards, at efferent 114, the abnormal judgment standard of the abnormal judgment standard of the car speed that obtains respectively from storage part 113 and gangway, compare with the speed of the car 3 of calculating according to the input of each detection signal and the state of each gate 28, the state of the speed of car 3 and car gangway 26 is had or not extremely separately detect.

When normal operation, because the speed of car 3 has the value roughly the same with the normal speed test pattern, and the car gangway during car 3 lifting 26 is in a state that closes, thereby, at efferent 114, the state that detects the speed of car 3 and car gangway 26 is not abnormal separately, continues the normal operation of elevator.

In the situation that for example make for a certain reason the velocity anomaly of car 3 increase and surpass the first abnormal speed test pattern 116 (Figure 19), the speed that detects car 3 at efferent 114 has extremely, working signal outputs to towing machine brake equipment 106 from efferent 114, and danger signal outputs to control panel 102 from efferent 114.Like this, towing machine 101 is stopped, and make towing machine with brake equipment 106 actions, the rotation that drives rope sheave 104 is braked.

And, in the situation that the car gangway 26 during car 3 lifting is in patent door state, detect the abnormal of car gangway 26 at efferent 114, working signal and danger signal output to respectively towing machine with brake equipment 106 and control panel 102 from efferent 114, and the rotation that drives rope sheave 104 is braked.

After towing machine is with brake equipment 106 startings, in the situation that the speed of car 3 further rises and surpasses the second abnormal speed setting value 117 (Figure 19), working signal is outputed to towing machine with under the state of brake equipment 106 keeping, working signal is outputed to emergency braking device 33 from efferent 114.Like this, make emergency braking device 33 actions, by the action identical with embodiment 2, car 3 is braked.

in this lift appliance, because monitor unit 108 is obtained the speed of car 3 and the state of car gangway 26 according to the information from the detecting unit 112 that state of elevator is detected, when any one party in the state of the speed that is judged as obtained car 3 and car gangway 26 has when abnormal, working signal is outputed to towing machine with at least any one party in brake equipment 106 and emergency braking device 33, thereby, the abnormality detection number of objects of elevator increases, not only can detect the velocity anomaly of car 3, and can detect the abnormal state of car gangway 26, the abnormality detection that can make 108 pairs of elevators of monitor unit more early and more reliable.Therefore, can further shorten from the elevator abnormal to producing the time required to the braking force of car 3.

In addition, in above-mentioned example, only detect the state of car gangway 26 by door sensor 140, yet also can use door sensor 140 to detect car gangway 26 and landing doorway 141 states separately.In the case, detect each layer door 142 towards the movement of closing a position and each gate 28 towards the movement of closing a position by door sensor 140.Like this, even in the situation that such as making gate 28 and the mutual et out of orders such as clamping close device that engage of layer door 142, only having gate 28 to move, also can detect abnormal elevator.

Embodiment 16

Figure 29 is the constructional drawing that schematically shows the lift appliance of embodiment of the present invention 16.Figure 30 means the constructional drawing on hoistway 1 top in Figure 29.In the drawings, electric power supply cable 150 is electrically connected to towing machine 101.Drive electric power by the control of control panel 102, offer towing machine 101 via electric power supply cable 150.

Be provided with current sensor 151 on electric power supply cable 150, this current sensor 151 is the actuating device test sections by the state of the electric current of the electric power supply cable 150 of flowing through being measured detect towing machine 101.151 current detection signals corresponding with the current value of electric power supply cable 150 of current sensor (actuating device state detection signal) output to efferent 114.In addition, current sensor 151 is configured in hoistway 1 top.And, as current sensor 151, can list current transformer (CT) etc., this current transformer (CT) is measured the inducing current that the size of current according to the electric power supply cable 150 of flowing through produces.

Car position sensor 109, car speed sensor 110 and current sensor 151 are electrically connected to efferent 114 respectively.In addition, detecting unit 112 has: car position sensor 109, car speed sensor 110 and current sensor 151.

Store in storage part 113: the car speed abnormal judgment standard identical with embodiment 11 shown in Figure 19 and the abnormal judgment standard of actuating device that N/R benchmark is arranged as the state of judgement towing machine 101.

Be set with 3 grades of test pattern in the abnormal judgment standard of actuating device.That is, be set with in the abnormal judgment standard of actuating device: normal level is the current value of electric power supply cable 150 of flowing through when normal operation; The first abnormal level has the value larger than normal level; And second abnormal level, have the value larger than the first abnormal level.

At efferent 114, calculate the position of car 3 according to the input of position detection signal, and according to speed detection signal and current detection signal input separately, calculate respectively the speed of car 3 and the state of towing machine 101 and extremely judge key element as multiple (in this example being two kinds).

When the speed of car 3 surpasses the first abnormal speed test pattern 116 (Figure 19), perhaps when the size of current of the electric power supply cable 150 of flowing through surpassed the value of the first abnormal level in the abnormal judgment standard of actuating device, efferent 114 outputed to towing machine brake equipment 106 to working signal (energizing signal).And, when the speed of car 3 surpasses the second abnormal speed test pattern 117 (Figure 19), perhaps when the size of current of the electric power supply cable 150 of flowing through surpassed the value of the second abnormal level in the abnormal judgment standard of actuating device, efferent 114 outputed to towing machine brake equipment 106 and emergency braking device 33 to working signal.That is, efferent 114 is determined the brake unit of output services signal according to the speed of car 3 and the state intensity of anomaly separately of towing machine 101.

Other structure is identical with embodiment 11.

Below, action is described.When from the position detection signal of car position sensor 109, when being imported into efferent 114 from the speed detection signal of car speed sensor 110 and from the current detection signal of current sensor 151, at efferent 114, according to the input of each detection signal, calculate the position of car 3, the speed of car 3 and the size of current in electric power supply cable 150.Afterwards, at efferent 114, the abnormal judgment standard of the car speed that obtains respectively from storage part 113 and actuating device abnormal state judgment standard and the speed of the car 3 of calculating according to the input of each detection signal and the size of current in electric power supply cable 150 are compared, the state of the speed of car 3 and towing machine 101 is had or not extremely separately detect.

When normal operation, because the speed of car 3 has the value roughly the same with normal speed test pattern 115 (Figure 19), and the size of current of the electric power supply cable 150 of flowing through is normal levels, thereby at efferent 114, detecting the speed of car 3 and the state of towing machine 101 does not have extremely separately, continues the normal operation of elevator.

In the situation that for example make for a certain reason the velocity anomaly of car 3 increase and surpass the first abnormal speed test pattern 116 (Figure 19), the speed that detects car 3 at efferent 114 has extremely, working signal outputs to towing machine brake equipment 106 from efferent 114, and danger signal outputs to control panel 102 from efferent 114.Like this, towing machine 101 is stopped, and make towing machine with brake equipment 106 startings, the rotation that drives rope sheave 104 is braked.

And, the size of current of electric power supply cable 150 surpasses the first abnormal level in actuating device abnormal state judgment standard in the situation that flow through, working signal and danger signal output to respectively towing machine with brake equipment 106 and control panel 102 from efferent 114, and the rotation that drives rope sheave 104 is braked.

After towing machine is with brake equipment 106 actions, in the situation that the speed of car 3 further rises and surpasses the second abnormal speed setting value 117 (Figure 19), working signal is outputed to towing machine with under the state of brake equipment 106 keeping, working signal outputs to emergency braking device 33 from efferent 114.Like this, make emergency braking device 33 actions, by the action identical with embodiment 2, car 3 is braked.

And, after towing machine is with brake equipment 106 startings, the size of current of electric power supply cable 150 surpasses the second abnormal level in actuating device abnormal state judgment standard in the situation that flow through, working signal is outputed to towing machine with under the state of brake equipment 106 keeping, working signal outputs to emergency braking device 33 from efferent 114, makes emergency braking device 33 actions.

In this lift appliance, because monitor unit 108 is obtained the speed of car 3 and the state of towing machine 101 according to the information from the detecting unit 112 that state of elevator is detected, when any one party in the state of the speed that is judged as obtained car 3 and towing machine 101 has when abnormal, working signal is outputed to towing machine with at least any one party in brake equipment 106 and emergency braking device 33, thereby, the abnormality detection number of objects of elevator increases, and can further shorten from the elevator abnormal to the braking force required time that produces car 3.

In addition, in above-mentioned example, detect the state of towing machine 101 with the current sensor 151 that the size of current of the electric power supply cable 150 of flowing through is measured, yet also can detect with the temperature sensor that the temperature of towing machine 101 is measured the state of towing machine 101.

And, in above-mentioned embodiment 11 to 16, efferent 114 is before outputing to emergency braking device 33 to working signal, working signal is outputed to towing machine brake equipment 106, yet efferent 114 is outputed to working signal: car brake, be installed separately on car 3 with emergency braking device 33, by clamping car guide rail 2, car 3 braked; The counterweight drg is arranged on counterweight 107, by the counter weight guide track of clamping guiding counterweight 107, counterweight 107 is braked; Perhaps wire stopper, be arranged in hoistway 1, by limiting main rope 4, main rope 4 braked.

And, in above-mentioned embodiment 1 to 16, as being used for electric power is offered from efferent the delivery unit of emergency braking device, use electrical cable, yet also can use radio communication device, this radio communication device has and is arranged on the transmitter in efferent and is arranged on the in-house receptor of emergent stopping.And, also can use the fibre-optic cable that transmits optical signal.

And, in above-mentioned embodiment 1 to 16, emergency braking device to car down the mistake speed (movement) of direction brake, yet this emergency braking device also can be arranged on upside down on car, the mistake speed (movement) of direction is up braked.

Embodiment 17

Figure 31 means the front view of car of the lift appliance of embodiment of the present invention 17.In the drawings, car 201 comprises: car frame 202; And by the cage 203 of car frame 202 supporting.Car frame 202 has: top frame 202a; Under(-)chassis 202b and a pair of vertical frame 202c.

By mounting base 205, a pair of upper guide boots 204 that engage with car guide rail 2 are installed on top frame 202a.On each upper guide boots 204, oil feeder 206 is installed.The a pair of lower guide boots 207 that engage with car guide rail 2 are installed on under(-)chassis 202b.

Be provided with primary sensor section 208 on a mounting base 205, this primary sensor section 208 is used for producing continuously the main detection signal corresponding with the amount of movement of car 201.

Come the main detection signal of autonomic sensor section 208 to be sent to control setup 209.Control setup 209 is obtained car information according to main detection signal, i.e. car position information and car speed information.In addition, control setup 209 is controlled the running of car 201 according to car information.

Specifically, in the situation that control setup 209 is operation controller, control setup 209 is obtained position and the speed of car 201, then generates the moving velocity figure of car 201.

In addition, in the situation that control setup 209 is safety device, control setup 209 is obtained position and the speed of car 201, and for example obtains the threshold value of car speed as shown in Figure 19, and monitors whether car speed reaches threshold value.

Control setup 209 can be arranged on car 201.Specifically, it is inferior that control setup 209 for example can be configured in top or the base plate of car 201.In addition, by making fully control setup 209 thin types, also control setup 209 can be imbedded in vertical frame 202c.In addition, control setup 209 also can be disposed at the top, bottom of hoistway 1 or wall section etc.

Figure 32 is the lateral plan of the main portion in Watch with magnifier diagram 31.Primary sensor section 208 has a pair of primary sensor 210a, the 210b that clips car guide rail 2 balanced configurations.Each primary sensor 210a, 210b have: detect roller 211, it rotates along car guide rail 2 along with the lifting of car 201; Signal generator 212, it produces main detection signal (impulse singla) according to the rotation that detects roller 211.

Detecting roller 211 is pressed against on car guide rail 2.In Figure 32, the state after the detection roller 211 of primary sensor 210b is unloaded in expression.For example use coder as signal generator 212.

209 pairs of main detection signals from each primary sensor 210a, 210b of control setup compare, difference between main detection signal is during more than or equal to predefined setting value, the either party at least who is judged as primary sensor 210a, 210b is broken down, and produces fault detection signal.

Aiding sensors section 213 is installed on mounting base 205.Aiding sensors section 213 has arrived predefined reference position in hoistway 1 by car 201 being detected, produces auxiliary detection signal.Control setup 209 is according to from the auxiliary detection signal of aiding sensors section 213, car information being revised.That is, when the input auxiliary detection signal, the car position information of control setup 209 is replaced as the car position of obtaining according to auxiliary detection signal from the car position of obtaining according to main detection signal.Meanwhile, car speed information also is corrected.

Car guide rail 2 has a plurality of track segments that engage on the lifting direction of car 201.Aiding sensors section 213 is configured to the side of car guide rail 2 opposed, and the joint of detection track segment is as the reference position.So whenever in aiding sensors section 213 during the joint by car guide rail 2, control setup 209 is transfused to auxiliary detection signal, and car information is revised.

As aiding sensors section 213, can use the sensor that for example comes detection tabs according to the variation of reflection of light rate, perhaps use the sensor that detects apart from the variation of the distance on the surface of car guide rail 2.

In addition, according to auxiliary detection signal to the correction of car information during more than or equal to predefined setting value, the either party at least that control setup 209 is judged as primary sensor section 208 and aiding sensors section 213 is broken down, and produces fault detection signal.In the situation that produced fault detection signal, car 201 emergent stoppings (perhaps, if possible, stopping at the most close floor), and to elevator management chamber transmission fault detection signal.

Be equipped with on mounting base 205 for detection of the attitude variation of car 201 or the acceleration pick-up 214 of vibration.Control setup 209 is also according to from the signal of acceleration pick-up 214, car information being revised.That is, in control setup 209, the impact that produces according to attitude or the vibration eliminated from car information from the signal of acceleration pick-up 214 because of car 201.

In this lift appliance, due to the aiding sensors section 213 that is used in combination for the primary sensor section 208 of detection position, speed continuously and detection reference position, therefore even produce to skid to wait with respect to car guide rail 2 and make car position information generation error owing to detecting roller 211, also can revise car position information by auxiliary detection signal before this deviation accumulation, can obtain more exactly position or the speed of car 201.

In addition, owing to having used two groups of primary sensor 210a, 210b in primary sensor section 208, therefore can improve reliability.

In addition, because the difference of the car position of obtaining to the car position obtained according to main detection signal with according to auxiliary detection signal monitors, therefore, the fault of primary sensor section 208 and aiding sensors section 213 can also be detected, reliability can be further improved.

Embodiment 18

Next, Figure 33 represents the constructional drawing of the lift appliance of embodiment of the present invention 18.In the drawings, be provided with actuating device (towing machine) 251 and deflector sheave 252 on hoistway top.Actuating device 251 has motor part (actuating device main body) 251b that drives rope sheave 251a and make driving rope sheave 251a rotation.Be provided with the electro-magnetic braking device that the rotation that drives rope sheave 251a is braked on motor part 251b.

Be wound with main rope 253 on driving rope sheave 251a and deflector sheave 252.Car 254 and counterweight 255 are suspended in hoistway by main rope 253.

Mechanical emergency braking device 256 is installed in the bottom of car 254, and this emergency braking device 256 is by engaging to make car 254 emergent stoppings with guide rail (not shown).Dispose governor sheave 257 on the top of hoistway.Dispose tension wheel 258 in the bottom of hoistway.Be wound with overspeed governor 259 on governor sheave 257 and tension wheel 258.The both ends of overspeed governor 259 are connected with the throw rod 256a of emergency braking device 256.So governor sheave 257 is rotated with the speed corresponding to the moving velocity of car 254.

Be provided with the primary sensor such as coder section 208 on governor sheave 257,208 outputs of this primary sensor section are for detection of the position of car 254 and the signal of speed.Come the main detection signal of autonomic sensor section 208 to be imported in control setup 260.

Be provided with overspeed governor holding device (rope fixing device) 261 at the top of hoistway (governor sheave 257 or its near), overspeed governor holding device 261 makes it stop circulation by clamping overspeed governor 259.Overspeed governor holding device 261 comprises: the holding part 261a that clamps overspeed governor 259; And the electromagnetic actuators 261b that drives holding part 261a.

When the working signal from elevator control gear 260 was input in overspeed governor holding device 261, by the propulsive effort of electromagnetic actuators 261b, holding part 261a moved, and made overspeed governor 259 stop mobile.When overspeed governor 259 stopped, by the movement of car 254, throw rod 256a was operated, and made emergency braking device 256 actions, thus car 254 emergent stoppings.

On predefined reference position in hoistway, be provided with a plurality of aiding sensors section 213.Aiding sensors section 213 has moved to the reference position by car 254 being detected, comes to control setup 260 output auxiliary detection signal.Control setup 260 is revised car position information and the car speed information obtained according to main detection signal according to auxiliary detection signal.

As the reference position that aiding sensors section 213 is set, such as enumerating each floor stop position, orlop stop position, the superiors' stop position, lobby floor stop position, deceleration starting point etc.In addition, aiding sensors section 213 can be one can be also more than three or three.

Like this, the present invention also can be applied to use the lift appliance of overspeed governor holding device 261.

In addition, the present invention not only can be applied to the lift appliance that primary sensor section 208 is arranged on car 254, also can be applied in the lift appliance that primary sensor section 208 is arranged at velocity limiter.

In addition, aiding sensors section 213 not only can be arranged on car 254, also can be arranged on hoistway side.

In addition, the combination of the primary sensor section shown in embodiment 17,18 and aiding sensors section certainly can be as the sensor in embodiment 1 to 16.

In addition, in the situation that in primary sensor section, a plurality of primary sensors are set, also can corresponding to each primary sensor, a plurality of aiding sensors be set in aiding sensors section.

In addition, in embodiment 17, take the joint of car guide rail 2 as the reference position, but the reference position is not limited to this, such as setting stop sill, stop door pocket, stop door, guide rails assembling for reference position with support, guide rail with the various device in the hoistways such as track bolt.Certainly, be not only existing equipment, special-purpose mark also can newly be set in the reference position.

In addition, in embodiment 17,18, show the example of car information being revised according to auxiliary detection signal, still, car information also can be revised.For example, in the situation that just basically do not produce error as long as no fault etc. according to main detection signal car information, control setup also can only monitor according to auxiliary detection signal the error of car information.At this moment, for example, with respect to the car position of obtaining according to auxiliary detection signal, if the car position of obtaining according to main detection signal is offset more than or equal to set amount, control setup produces fault detection signal.

In addition, the present invention also can be applicable to actuating device and be arranged on self-propelled elevator on car, perhaps also can be applied to dispose in hoistway many car types elevator of a plurality of cars.

Claims (1)

1. lift appliance, it comprises:

The car of lifting in hoistway;

The car position test section, it is for detection of the position of described car;

The car speed test section, it is for detection of the speed of described car;

Rope fracture test section, it has crack-free for detection of main rope;

Storage part, it stores the abnormal judgment standard of rope and the abnormal judgment standard of car speed, the abnormal judgment standard of described rope has N/R benchmark as the described main rope of judgement, and the position of the abnormal judgment standard of described car speed and described car is set accordingly, is the abnormal judgment standard about the speed of described car; And

efferent, itself and described car position test section, described car speed test section and described rope fracture test section are electrically connected to, described car speed abnormal judgment standard and the described rope abnormal judgment standard of this efferent to obtaining from described storage part, the speed of the described car that calculates with input according to detection signal and the state of described main rope compare, detecting the speed of described car and the state of described main rope has or not extremely, be judged as when abnormal, this efferent to towing machine with at least any one party output services signal in brake equipment and emergency braking device.

Images