JP4935262B2 - Elevator rope roll detection device and elevator control operation device - Google Patents

Description

  The present invention relates to an elevator rope roll detection device that detects rope roll due to a long-period earthquake, wind, or the like, and an elevator control operation device using the same.

Long-period earthquakes are located in areas where the epicenter is more than 150 km away, are affected by buildings in plains, and in buildings with a height of more than 60 m, they shake greatly when a resonance phenomenon with the building occurs. When a resonance phenomenon due to such a long-period earthquake occurs, the shaking of the building will continue for about 5 to 10 minutes, the amplitude of the main rope of the elevator will increase in amplitude, and the amplitude of the main rope's roll will also be about 3 m. It is said. In addition, the vibration has a long period of 4 to 7 seconds.
However, even if a building is shaken due to long-period earthquake ground motion, it cannot be detected by a conventional earthquake detector. The normal seismic detector has an extra low sensor of about 60 Gal and a low sensor of about 100 Gal, but the seismic motion of long-period earthquakes is several Gal on the ground surface and about 30 Gal at the top of the building. This is because it cannot be detected.
For safe operation of an elevator, it is necessary to detect the ground motion of a long-period earthquake and stop or stop the elevator.

  2. Description of the Related Art Conventionally, an elevator suspension device (rope) and a compensation device (rope) that limit vibrations using a counterweight that moves in a guide rail, and surrounds the guide rail, the counterweight, the suspension device, and the compensation device. An apparatus including at least one restriction frame is known (for example, see Patent Document 1).

JP-A-8-295472

  In a conventional device for limiting vibration, a fixed-weight vibration limiting mechanism and a monitor switch are provided on the guide rail of the counterweight, and an emergency stop is made in the event of an earthquake, so the device is mechanically mounted between the car and the counterweight. If the distance between the car and the counterweight is not enough, it cannot be installed. In addition, the structure is complicated, resulting in malfunctions and high prices. There is also a problem that only a sudden stop can be controlled.

  The present invention was made to solve the above-described problems. Even when a building sways due to a long-period earthquake ground motion and a rope rolls, the rope roll detection is configured at a very low cost. The present invention provides an elevator roll roll detection device and an elevator control operation device that can detect roll roll by a switch.

In the elevator roll roll detecting device according to the present invention, a conductor is provided at a predetermined interval inside, and when pressed from the outside with a predetermined pressure, the conductors come into contact with each other to output a signal in a belt-like pressure detection switch, mounted spaced apart from the rope connecting the counterweight and cage in the horizontal direction of the outer side surface of the car of the counterweight side, when the rope by rolling of rope operated against external pressure sensing switch, the horizontal sway of the rope Is provided with a car-side rope roll detection switch.

In addition, a strip-shaped pressure detection switch that has conductors provided inside at predetermined intervals and outputs a signal when the conductors are pressed against each other with a predetermined pressure from the outside is connected to the counterweight guide rail in the vertical direction of the hoistway. mounting apart from the rope connecting the counterweight and cage in the horizontal direction and the hoistway at a predetermined interval in the direction, when the rope by rolling of rope operated against external pressure sensing switch, the horizontal sway of the rope Are provided with a plurality of hoistway side rope roll detection switches.

In addition, it is mounted apart from the rope connecting the car and the counterweight in the lateral direction on the outer side of the counterweight side of the car, and when the rope hits from the outside due to the roll of the rope, the rope will roll. A car side rope roll detection switch to be detected, and a counterweight attached to the counterweight guide rail at a predetermined interval in the vertical direction of the hoistway and spaced apart from the rope connecting the car and the counterweight in the horizontal direction to the hoistway; It is equipped with a plurality of hoistway side rope roll detection switches that operate when the rope hits from the outside due to the roll of the rope and detect the roll of the rope.

  Further, a protective plate is attached to the surface of the pressure detection switch facing the rope.

  Further, the car-side rope roll detection switch is attached to the upper and lower portions of the outer side surface on the counterweight side of the car.

  Further, at least five hoistway side rope roll detection switches are attached at predetermined intervals in the vertical direction of the hoistway, one of which is one-half of the hoisting stroke and two of which are 1 of the hoisting stroke. / 4 and 3/4 are attached at two positions, and three are attached at positions 3/8 and 5/8 of the lifting / lowering stroke, respectively.

In the elevator control operation device according to the present invention, the rope roll detection device is used, and when the rope roll detection is detected by the rope roll detection device, the elevator is stopped nearest to the floor and the rope roll is stopped. If the roll roll is not detected even after the specified time has passed, the elevator will return to normal operation, while the rope roll detection state will continue and the car will be at the upper or lower hoistway if operation is cage-side rope roll detection device in position, it is determined that the amplitude of the rope roll is large, in which the elevators and rope roll hibernation.

Also, using the roll roll detection device, when the rope roll detection is detected by the rope roll detection device, the elevator stops the nearest floor and continues the rope roll detection state, after a predetermined time has passed If rope roll is not detected, return the elevator to normal operation.On the other hand, if the rope roll detection state continues and the car operates on the hoistway side rope roll detection device near the intermediate floor, the rope It determines that the amplitude of the roll is large, in which the elevators and rope roll hibernation.

  According to this invention, the cage is provided with a conductor inside, and a pressure detection switch that outputs a signal when the conductors are pressed against each other with a predetermined pressure is attached to the outer surface of the cage to detect the roll of the rope. Since the side rope roll detection switch is provided, long-period earthquakes can be detected very inexpensively. Even if rope roll is detected and the nearest floor stops, if there is no shaking for a certain time, it is automatically reset and can be recovered automatically. Moreover, since a big shake can be detected according to the position of the car when the shake is detected, it can be stopped after the nearest floor stop. In addition, detection of shaking conditions and large shakings can be detected to automatically notify the maintenance company of the resting situation.

Embodiment 1 FIG.
FIG. 1 is a block diagram showing the structure of a single elevator roll roll detection switch according to Embodiment 1 of the present invention, and FIG. 2 is a system showing the circuit configuration of an elevator rope roll detection apparatus according to Embodiment 1 of the present invention. FIG. 3 is a plan view of a hoistway showing the mounting structure of an elevator rope roll detection device according to Embodiment 1 of the present invention, and FIG. 4 is an elevator rope roll detection device according to Embodiment 1 of the present invention. 5 is a partial side view of the hoistway showing the mounting structure, FIG. 5 is a side view of the entire hoistway showing a method of attaching the elevator roll roll detection device to the hoistway side in Embodiment 1 of the present invention, and FIG. The side view of the whole hoistway which shows the attachment method to the cage | basket | car side of the elevator roll roll detection apparatus in Embodiment 1 of this invention, FIG. 7 is in Embodiment 1 of this invention. It is a flow chart for explaining the operation of the rope roll detecting apparatus elevators.

  In FIG. 1, a plurality of rope roll detection switches 1 used in the present invention are attached to protect a commercially available belt-like pressure detection switch 2 and the surface of the pressure detection switch 2 facing the rope. The protective plate 3 is formed. The pressure detection switch 2 is configured such that when a pair of conductors 4 and 5 are attached to each other at a predetermined interval and pressed with a predetermined pressure, the conductors 4 and 5 come into contact with each other and output signals. . Reference numerals 6 and 7 denote terminal portions of the pressure detection switch 2.

3 and 4, 8 is an elevator car, 9 is a counterweight, 10 is a guide rail for guiding and supporting the counterweight 9, 11 is a main rope connecting the upper part of the car 8 and the upper part of the counterweight 9, and 12 is A balance rope connecting the lower portion of the cage 8 and the lower portion of the counterweight 9, 13 is a main rope attachment portion provided at the upper portion of the balance weight 9, 14 is a balance rope attachment portion provided at the lower portion of the balance weight 9, 15 A balancing rope attachment portion 16 provided at the lower portion of the car 8 is an attachment arm of a rope roll detection switch 16 attached to the guide rail 10.
Car side rope roll detection switches 1 a (EER-C 1) and 1 b (EER-C 2) are separately attached to the horizontal (horizontal) upper and lower parts of the counterweight side outer side surface of the car 8. The counterweight guide rail 9 includes a plurality of hoistway side rope roll detection switches 1c to 1g (EER-H1 to EER-H5) at predetermined intervals in the vertical direction and the horizontal direction (horizontal direction) of the hoistway. ). A plurality of hoistway side rope roll detection switches 1c to 1g (EER-H1 to EER-H5) attached to the counterweight guide rail 9 are individually attached via attachment arms 16 and can be moved in the front-rear direction. Thus, the operating point can also be adjusted. A plurality of hoistway side rope roll detection switches 1c to 1g (EER-H1 to EER-H5) are placed on other hoistway fixing portions in the vertical direction instead of being attached to the counterweight guide rail 9. Moreover, you may make it attach in the horizontal direction (horizontal direction) of a hoistway. Thereby, it is possible to detect the roll of the rope to the surface other than the counterweight guide rail side.

  In FIG. 2, 17 is a control circuit of the rope roll detecting device, 18 is a power source, 19 is an EER-C relay, and 20-1 to 20-5 are EER-H1 to EER-H5 relays. Now, when the main rope 11 hits the car rope roll detection switch 1a (EER-C1) and 1b (EER-C2), the EER-C relay 19 of the control circuit 17 picks up. Roll can be detected. When the main rope 11 hits one of the hoistway side rope roll detection switches 1c to 1g (EER-H1 to EER-H5) attached to the counterweight guide rail 10, the EER-H1 to EER of the control circuit 17 is operated. Since any of the H5 relays 20-1 to 20-5 picks up, the roll of the main rope 11 can be detected by the control panel.

FIG. 5 shows a method of attaching the rope roll detection switches 1c to 1g (EER-H1 to EER-H5) to the hoistway side, and will be described by taking an elevator on the 30th floor as an example. In the figure, 21 is a hoistway, 22 is a hoisting sheave, 23 is a deflecting sheave, and 24 is a balancing rope sheave.
Although the number of attachment points of the hoistway side rope roll detection switch may be large, it is desirable to adopt the following method as an efficient attachment method. As shown in FIG. 5 (a), when the car 8 is on the top floor, the hoistway side rope roll detection switch 1e (EER-H3) is attached near the 15th floor where the roll of the main rope 11 is maximum in the middle. (It becomes a half point of the lifting stroke T). As shown in FIG. 5 (e), when the car 8 is at the lowest floor, the hoistway side rope roll detection switch 1e (EER) is located near the 15th floor where the roll of the balancing rope 12 is maximum in the middle. -H3) is attached (the point is half the lifting stroke T). As shown in FIG. 5B, when the car 8 is slightly lowered from the top floor (near the 22nd floor), the hoistway side rope roll detection is detected near the 19th floor, which is the middle part of the roll of the main rope 11. Attach the switch 1d (EER-H2) (the point is about 5/8 of the lifting stroke T). Further, as shown in FIG. 5C, when the car 8 is near the middle floor (15th floor), the hoistway side rope roll detection is detected near the 22nd floor where the roll of the main rope 11 is maximum in the middle section. A switch 1c (EER-H1) is attached (a point about 3/4 of the lifting stroke T), and the hoistway side rope roll detection switch is also located near the eighth floor where the rolling of the balancing rope 12 is maximum in the middle. 1g (EER-H5) is attached (the point is about 1/4 of the lifting stroke T). In addition, as shown in FIG. 5 (d), when the car 8 is slightly raised from the lowest floor (near the eighth floor), the hoistway side rope rolls near the 12th floor which is the middle part of the roll of the balancing rope 12. The detection switch 1f (EER-H4) is attached (the point is about 3/8 of the up / down stroke T).
Here, the car 8 shown in FIG. 5 (c) is near the 15th floor of the intermediate floor, and the hoistway side rope roll detection switches 1c (EER-H1) and 1g (EER-H5) operate mainly. When the length of the swinging portion of the rope 11 and the balance rope 12 is the shortest, the hoistway side rope roll detection switch 1c (EER-H1), 1g (EER-H5) operates at this time. In other words, it is the time when the swing is maximum, and it is necessary to put the elevator in a dormant state and have a maintenance engineer check it.

FIG. 6 shows a method of attaching the rope roll detection switch 1a (EER-C1) and 1b (EER-C2) to the car side, and will be described by taking an elevator on the 30th floor as an example. In the figure, 21 is a hoistway, 22 is a hoisting sheave, 23 is a deflecting sheave, and 24 is a balancing rope sheave.
The car side rope roll detection switches 1a (EER-C1) and 1b (EER-C2) mounted laterally (horizontal) on the upper and lower sides of the outer surface of the car 8 are the rolls of the main rope 11 and the balancing ropes. Operates with 12 rolls. For example, as shown in FIG. 6 (a), the car 8 is located in the vicinity of a position (30th to 23rd floor) of the upper part of the hoistway from the top floor, and the side of the car side rope is moved by the roll of the main rope 11. When the vibration detection switch 1a (EER-C1) or 1b (EER-C2) is activated, it is judged that the amplitude of the roll of the main rope 11 is very large, the elevator is stopped, and the maintenance engineer is inspected. It is necessary to let In addition, as shown in FIG. 6 (e), the car 8 is located near the 1/4 position (1st to 7th floors) from the lowest floor to the lower part of the hoistway. When the roll detection switch 1a (EER-C1) or 1b (EER-C2) operates, it is judged that the amplitude of the roll of the balancing rope 12 is very large, the elevator is put into a dormant state, and the maintenance engineer is inspected. It is necessary to let

Next, the operation of the elevator roll roll detecting apparatus in Embodiment 1 of the present invention will be described with reference to FIG.
In a high-rise building, if a hoistway shake or a rope shake occurs due to a long-period earthquake or wind, the elevator will be controlled. First, in step S1, it is determined whether or not the car-side rope roll detection switches 1a and 1b and the hoistway-side rope roll detection switches 1c to 1g are in operation. When any of the car side rope roll detection switches 1a and 1b and the hoistway side rope roll detection switches 1c to 1g is operated, the elevator stops at the nearest floor and remains in the “Rope roll detection” state after being opened. (Step S2). In step S3, the rope roll detection operation is performed by the rope roll detection switch. If there is no continuous rope roll detection operation, the elevator is automatically returned to the normal state when one minute has passed (step S4). (Step S5). In addition, when the rope roll detection operation is continuously performed by the rope roll detection switch in step S3, the position of the car 8 is a position from the top floor to a quarter of the hoistway (30th floor to 23rd floor). In the vicinity, the car side rope roll detection switch 1a (EER-C1) or 1b (EER-C2) is operated due to the roll of the main rope 11, or the position of the car 8 is 1 below the hoistway from the lowest floor. It is determined whether the car side rope roll detection switch 1a (EER-C1) or 1b (EER-C2) is operated due to the roll of the balancing rope 12 near the position of / 4 (1st to 7th floors) (step) S6). If the car-side rope roll detection switch 1a, 1b is operating at the position where the car 8 is at the upper or lower part of the hoistway, it is determined that the amplitude of the rope roll is very large, and the elevator is A "rest" state is set, and a maintenance engineer is inspected (step S7). Further, it is determined whether or not the elevator shaft side roll roll detection switch 1c (EER-H1), 1g (EER-H5) is operated near the 15th floor of the intermediate floor (step S8). When the car 8 is near the 15th floor of the intermediate floor, the length of the swinging portion of the main rope 11 and the balance rope 12 is the shortest. At this time, the hoistway side rope roll detection switch 1c (EER-H1), 1g If (EER-H5) is operated, that is, it is determined that the swing is the maximum, and the elevator is set to the “rope roll stop” state, and the maintenance engineer is inspected (step S7).

Embodiment 2. FIG.
FIG. 8 is a system configuration diagram showing an elevator seismic control operation system using the elevator roll roll detecting device according to the second embodiment of the present invention. In the figure, the same or corresponding parts as those in the first embodiment are denoted by the same reference numerals and description thereof is omitted.
In FIG. 8, 25 is an elevator control panel, 26 is a communication device, 27 is a telephone network, 28 is an elevator maintenance company reception system, 29 is a communication device, 30 is a reception terminal, and 31 is a maintenance engineer. The control circuit 17 of the rope roll detection device is connected to the elevator control panel 25, and if there is an abnormality in the rope roll, it is connected to the elevator maintenance company reception system 28 via the communication device 26 and the telephone network 27. Yes.

  According to the second embodiment, any one of the car side rope roll detection switches 1a and 1b and the hoistway side rope roll detection switches 1c to 1g operates, the elevator stops the nearest floor, and stops after the door is opened. When it is in the “Rope roll detection” state, or when it is judged that the vibration is very large and the elevator is in the “Rope roll stop” state, it is detected, and it is sent to the elevator maintenance company reception system. You will be notified automatically and you will be able to call the nearest maintenance engineer and inspect the site for inspection and recovery.

BRIEF DESCRIPTION OF THE DRAWINGS It is a block diagram which shows the structure of the elevator rope roll detection switch single-piece | unit in Embodiment 1 of this invention. BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a system configuration diagram showing a circuit configuration of an elevator roll roll detection device in Embodiment 1 of the present invention. It is a top view of the hoistway which shows the attachment structure of the rope roll rolling detector of the elevator in Embodiment 1 of this invention. BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a partial side view of a hoistway showing an attachment structure of an elevator rope roll detection device in Embodiment 1 of the present invention. It is a side view of the whole hoistway which shows the attachment method to the hoistway side of the rope roll rolling detector of the elevator in Embodiment 1 of this invention. BRIEF DESCRIPTION OF THE DRAWINGS It is a side view of the whole hoistway which shows the attachment method to the cage | basket | car side of the elevator roll roll detection apparatus in Embodiment 1 of this invention. It is a flowchart for demonstrating operation | movement of the rope roll rolling detector of the elevator in Embodiment 1 of this invention. It is a system configuration | structure figure which shows the seismic control operation system of the elevator using the elevator roll roll detection apparatus in Embodiment 2 of this invention.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Rope roll detection switch 1a, 1b Car side rope roll detection switch 1c-1g Hoistway side rope roll detection switch 2 Pressure detection switch 3 Protection plate 4, 5 Conductor 6, 7 Terminal part 8 Elevator car 9 Counterweight 10 Guide rail 11 Main rope 12 Balance rope 13 Main rope attachment portion 14, 15 Balance rope attachment portion 16 Installation arm 17 Control circuit of rope roll detection device 18 Power supply 19 EER-C relay 20-1 to 20-5 EER-H1 EER-H5 relay 21 hoistway 22 hoisting machine sheave 23 baffle sheave 24 balancing rope sheave 25 elevator control panel 26, 29 communication device 27 telephone line network 28 elevator maintenance company receiving system 30 receiving terminal 31 maintenance engineer

Claims (9)

Conductors are provided at predetermined intervals in the interior, next to the outer surface of the belt-like pressure sensing switch for outputting an in contact with the conductor to each other and pressed against the outside with a predetermined pressure signal, the car of the counterweight-side Install the car side rope roll detection switch to detect the roll of the rope when the rope hits the pressure detection switch from the outside due to the roll of the rope and is attached to the rope connecting the car and the counterweight in the direction. An elevator rope roll detection device characterized by comprising: A strip-shaped pressure detection switch that outputs a signal when a conductor is provided at a predetermined interval inside and is pressed against the outside with a predetermined pressure. The vertical direction of the hoistway is connected to the counterweight guide rail. If the rope is attached to the pressure detection switch from the outside due to the rolling of the rope, the rope is moved laterally. An elevator rope roll detection device comprising a plurality of hoistway side rope roll detection switches for detecting a shake. Mounted separately from the rope that connects the car and the counterweight in the lateral direction of the outer side of the counterweight side of the car, it operates when the rope hits from the outside due to the roll of the rope, and detects the roll of the rope A cage-side rope roll detection switch,
Mounted apart from the rope connecting the counterweight and cage in the horizontal direction and the hoistway at a predetermined distance to the weight guide rails in the longitudinal direction of the hoistway balance, the rope from the outside by rolling of the rope hit and operated, and a plurality of shaft side rope roll detection switch for detecting transverse vibration of the rope,
An elevator rope roll detection device characterized by comprising: The car side rope roll detection switch and the hoistway side rope roll detection switch are provided with conductors at predetermined intervals inside, and when pressed from outside with predetermined pressure, the conductors contact each other and output signals. The elevator roll roll detecting device according to claim 3, comprising a belt-like pressure detecting switch. The elevator roll roll detecting device according to any one of claims 1, 2 , and 4 , wherein a protective plate is attached to a surface of the pressure detection switch facing the rope. The car-side rope roll detection switch, the car of the counterweight-side claim 1 or claim 3 Symbol placement of the elevator rope roll detection device is characterized in that mounted apart on the upper and lower portions of the outer surface of the. At least five hoistway-side rope roll detection switches are attached at predetermined intervals in the vertical direction of the hoistway, one of which is at a position 1/2 of the lifting stroke and two of which are 1/4 of the lifting stroke. When the position of 3/4, 2 pieces lifting stroke of 3/8 and 5/8 rope roll detecting device according to claim 2 or claim 3 Symbol placement of the elevator, characterized in that mounted at positions of the. The elevator roll roll detection device according to any one of claims 1 and 3 , wherein when the rope roll detection is detected by the rope roll detection device, the elevator is stopped nearest to the floor. If the roll roll is not detected even after a predetermined time has passed, the elevator is returned to normal operation while the roll roll is detected and the car moves up or down the hoistway. if operation is cage-side rope roll detection device at the location of the road bottom, determines that the amplitude of the rope roll is large, control operation device for an elevator, characterized in that the elevators and rope roll hibernation. 4. The elevator roll roll detection device according to claim 2, wherein when the roll roll detection of the rope is detected by the rope roll detection device, the elevator is stopped nearest to the floor. If the roll roll is not detected even after the specified time has passed, the elevator is returned to normal operation, while the rope roll detection is continued and the car is positioned near the middle floor. in if operation hoistway ropes roll detector, rope roll of determining the amplitude is large, control operation device characteristics and to Rue elevators to the elevators and rope roll hibernation.

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