CN107848760B - Lift appliance - Google Patents
Lift appliance Download PDFInfo
- Publication number
- CN107848760B CN107848760B CN201580081810.7A CN201580081810A CN107848760B CN 107848760 B CN107848760 B CN 107848760B CN 201580081810 A CN201580081810 A CN 201580081810A CN 107848760 B CN107848760 B CN 107848760B
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- Prior art keywords
- carriage
- sheave
- deflector sheave
- rope
- internal load
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- 238000004804 winding Methods 0.000 claims description 16
- NJPPVKZQTLUDBO-UHFFFAOYSA-N novaluron Chemical compound C1=C(Cl)C(OC(F)(F)C(OC(F)(F)F)F)=CC=C1NC(=O)NC(=O)C1=C(F)C=CC=C1F NJPPVKZQTLUDBO-UHFFFAOYSA-N 0.000 description 14
- 238000010586 diagram Methods 0.000 description 4
- 238000006073 displacement reaction Methods 0.000 description 4
- 238000000034 method Methods 0.000 description 4
- 230000007423 decrease Effects 0.000 description 3
- 230000000116 mitigating effect Effects 0.000 description 3
- 240000002853 Nelumbo nucifera Species 0.000 description 2
- 235000006508 Nelumbo nucifera Nutrition 0.000 description 2
- 235000006510 Nelumbo pentapetala Nutrition 0.000 description 2
- 230000008602 contraction Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- 230000001276 controlling effect Effects 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 230000002265 prevention Effects 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 230000006641 stabilisation Effects 0.000 description 1
- 238000011105 stabilization Methods 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66B—ELEVATORS; ESCALATORS OR MOVING WALKWAYS
- B66B1/00—Control systems of elevators in general
- B66B1/02—Control systems without regulation, i.e. without retroactive action
- B66B1/06—Control systems without regulation, i.e. without retroactive action electric
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66B—ELEVATORS; ESCALATORS OR MOVING WALKWAYS
- B66B11/00—Main component parts of lifts in, or associated with, buildings or other structures
- B66B11/04—Driving gear ; Details thereof, e.g. seals
- B66B11/08—Driving gear ; Details thereof, e.g. seals with hoisting rope or cable operated by frictional engagement with a winding drum or sheave
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- Engineering & Computer Science (AREA)
- Automation & Control Theory (AREA)
- Civil Engineering (AREA)
- Mechanical Engineering (AREA)
- Structural Engineering (AREA)
- Cage And Drive Apparatuses For Elevators (AREA)
- Elevator Control (AREA)
Abstract
Lift appliance has: traction machine (4) has rope sheave (5), motor, brake；Rope (3) connects carriage (1) and counterweight (2), and is wound in rope sheave (5)；Deflector sheave (6) is arranged between rope sheave (5) and counterweight (2), and rope (3) is wound in the deflector sheave (6)；Deflector sheave mounting rail (7) supports deflector sheave (6), move in the vertical direction deflector sheave (6) can；And spring (10), the value of itself and the carriage internal load of carriage (1) correspondingly controls the position of the vertical direction of deflector sheave (6), the increase of spring (10) and carriage internal load moves deflector sheave (6) downwards, and the reduction with carriage internal load is correspondingly moved upward deflector sheave (6).
Description
Technical field
The present invention relates to a kind of lift appliances, in particular to deceleration when emergent stopping is correspondingly controlled with carriage internal load
The lift appliance spent and mitigate impact.
Background technique
The traction machine of previous lift appliance has rope sheave, deflector sheave, the motor for rotating rope sheave, is used for rope sheave
The brake braked of rotation.Rope is wound on rope sheave and deflector sheave.Carriage is linked in one end of rope.This
Outside, counterweight is linked in the other end of rope.Carriage and counterweight are gone up and down in hoistway using motor.In addition, when carriage reaches,
By the rotation of brake rope sheave, so that carriage stops.
In addition, being provided with urgent retainer on the downside of carriage.Urgent retainer when urgent be set to leading for hoistway
Rail clip closes, and prevents the lifting of carriage.Urgent retainer is only with super in the case where rope disconnects and because of certain reason carriage
Cross normal speed speed begin to decline in the case where use.Therefore, even if in emergent stoppings such as earthquakes, generally also by draging
The brake for drawing machine stops carriage.
When previous lift appliance is completed, the brake of traction machine is tested.Based on the test result, as needed
Carry out the adjustment of braking torque.
In addition, also carrying out the test of urgent retainer when previous lift appliance is completed.In this experiment, make carriage
In the state of stopping, acting urgent retainer, to the direction drive motor of cage descending.At this point, carriage is by urgent retainer
Lifting is prevented, therefore carriage does not move.Therefore, line relaxation, as a result, rope sheave starts to dally.On the other hand, if promptly
The prevention power of retainer is insufficient, then rope does not relax, cage descending.Therefore, if carriage does not decline, can be judged as tight
Anxious retainer is good.
The test of urgent retainer carries out as described above, therefore when test, the motor of traction machine must export enough rope sheaves
Start the very big torque of idle running.The capacity of the motor of traction machine is determined by the size of the torque.
However, torque necessary to operating of the size than actual use of the torque is big.If it is possible to according to reality
Torque necessary to the operating used determines the capacity of the motor of traction machine, then can reduce the capacity of motor.
Therefore, in patent document 1, provided with the movable device for keeping the position of deflector sheave mobile.In urgent stop
When part is tested, movable device rises compared with making position of the position of deflector sheave when usual operating.Volume of the rope to rope sheave as a result,
Reduce around angle.As a result, the tractive force of rope can be reduced.Thereby, it is possible to reduce the torsion of the test for urgent retainer
Square.As a result, the capacity of motor can be reduced.
Existing technical literature
Patent document
Patent document 1: Japanese Unexamined Patent Publication 2002-348073 bulletin
Summary of the invention
Subject to be solved by the invention
In patent document 1, only test when being completed when change the position of deflector sheave.After the test, make partially
The position of guide wheel returns to original position.Therefore, in patent document 1, the position of deflector sheave cannot be made in the operation of elevator
Variation.
As described above, carriage is stopped by the brake of traction machine in usual operating.In addition, in emergent stoppings such as earthquakes
When, carriage is also stopped by the brake of traction machine.For braking torque necessary to stopping according to the magnitude of load in carriage and
Variation.
However, carrying out the adjustment of braking torque when being completed in previous lift appliance.Therefore, braking torque is always
It is fixed.In previous lift appliance, correspondingly braking torque cannot be made to change with the load variations in carriage.Above-mentioned special
In sharp document 1, braking torque is also fixed always.
When common carriage is stopped, carriage is stopped based on preset stopping velocity mode.Therefore, if selection is suitable
When stopping velocity mode impact will not be brought to passenger even if braking torque is fixed.
However, stopping carriage in emergent stopping with the stopping velocity mode faster than common stopping velocity mode.This
When, if braking torque is fixed, big deceleration can be unnecessarily generated in the case where carriage internal load is small.Therefore, sedan-chair
Compartment sharp stops, therefore brings the impact from carriage to passenger.
The present invention is to complete in order to solve this problem, it is therefore intended that a kind of lift appliance is obtained, it can be with carriage
Internal load correspondingly controls deceleration, and impact when stopping carriage mitigating.
Means for solving the problems
The present invention is a kind of lift appliance, which has: traction machine, has rope sheave, rotates the rope sheave
Motor and the braking rope sheave brake；Rope connects carriage and counterweight, and is wound in the rope sheave；Local derviation
Wheel is arranged between the rope sheave and the counterweight, and the rope winding is in the deflector sheave；Deflector sheave mounting rail, bearing
The deflector sheave enables the deflector sheave to move in the vertical direction；And in position control section, with the carriage of the carriage
The value of load correspondingly controls the position of the vertical direction of the deflector sheave, the position control section and the carriage internal load
Increase moves the deflector sheave downwards, and the reduction with the carriage internal load correspondingly makes the deflector sheave upward
Fang Yidong.
Invention effect
In the present invention, the increase of position control section and carriage internal load moves deflector sheave downwards, with sedan-chair
The reduction of compartment internal load is correspondingly moved upward deflector sheave.Thereby, it is possible to change the tractive force of rope, therefore can control
Deceleration when carriage processed stops, so that impact when stopping carriage mitigating.
Detailed description of the invention
Fig. 1 is the structure chart for showing the structure of lift appliance of embodiments of the present invention 1.
Fig. 2A is the partial front elevation view for showing the structure of lift appliance of embodiments of the present invention 1.
Fig. 2 B is the partial side view for showing the structure of lift appliance of embodiments of the present invention 1.
Fig. 3 A is the partial front elevation view for showing the structure of lift appliance of embodiments of the present invention 1.
Fig. 3 B is the partial side view for showing the structure of lift appliance of embodiments of the present invention 1.
Fig. 4 is the block diagram for showing the structure of lift appliance of embodiments of the present invention 2.
Fig. 5 A is the partial front elevation view for showing the structure of lift appliance of embodiments of the present invention 2.
Fig. 5 B is the partial side view for showing the structure of lift appliance of embodiments of the present invention 2.
Fig. 6 A is the partial front elevation view for showing the structure of lift appliance of embodiments of the present invention 2.
Fig. 6 B is the partial side view for showing the structure of lift appliance of embodiments of the present invention 2.
Fig. 7 is said with the relationship of load factor in the carriage deceleration and carriage in the general lift appliance of graphical representation
Bright figure.
Fig. 8 is the principle to the vertical direction position using spring adjust automatically deflector sheave of embodiments of the present invention 1
The explanatory diagram being illustrated.
Specific embodiment
Correspondingly change for braking torque and the value of carriage internal load necessary to stopping carriage.However, previous
Lift appliance in, due to carrying out the adjustment of braking torque when test when being completed, braking torque fixes always.Therefore, exist
In previous lift appliance, in the state that carriage internal load is small in the case where carriage emergent stopping, big deceleration can be generated.
Therefore, in lift appliance of the invention, setting can change the vertical of correspondingly adjust automatically deflector sheave with carriage internal load
The mechanism of direction position.The tractive force for controlling rope as a result, impact when stopping carriage mitigating.
Referring to the drawings, embodiment for carrying out the present invention is illustrated.
Embodiment 1
Fig. 1 is the structural schematic diagram for showing the structure of lift appliance of embodiments of the present invention 1.As shown in Figure 1, carriage
1 and counterweight 2 be arranged in hoistway.The top of hoistway is provided with traction machine 4.Traction machine 4 goes up and down carriage 1 and counterweight 2.Traction
Machine 4 has tractor main body and rope sheave 5.Tractor main body includes motor and brake.Rope sheave 5 is rotated by motor.It is restricting
More ropes 3 are wound on wheel 5.In addition, being configured with deflector sheave 6 between rope sheave 5 and counterweight 2.It is also wound on deflector sheave 6
Rope 3.Carriage 1 is linked in one end of rope 3.Counterweight 2 is linked in the other end of rope 3.Carriage 1 and counterweight 2 are by rope 3
It is suspended in hoistway.Carriage 1 and counterweight 2 due to rope sheave 5 rotation and gone up and down in hoistway 1.
In addition, traction machine 4 is placed in traction machine pedestal 8.Traction machine pedestal 8 is fixed on the top of hoistway.In traction machine base
Seat 8 is provided with the deflector sheave mounting rail 7 for installing deflector sheave 6.Deflector sheave mounting rail 7 supports deflector sheave 6.Deflector sheave mounting rail
7 enable deflector sheave 6 to move in the vertical direction.Deflector sheave mounting rail 7 has rectangular shape.The length side of deflector sheave mounting rail 7
To for vertical direction, i.e. go up and down direction.Traction machine pedestal 8 is also rectangular shape.The length direction of traction machine pedestal 8 is level side
To.Therefore, the length of the vertical direction of traction machine pedestal 8 is shorter than the vertical direction of deflector sheave mounting rail 7.In deflector sheave mounting rail
The slot of adjustment up and down 9 for moving in the vertical direction deflector sheave 6 is provided on 7.Up and down adjustment with slot 9 vertically,
That is lifting direction extends.The central axis 61 inserted with deflector sheave 6 in upper and lower adjustment slot 9.On the central axis 61 of deflector sheave 6
Lower adjustment is guided with slot 9, can be moved in the vertical direction.Deflector sheave mounting rail 7 supports deflector sheave 6 as a result, and makes deflector sheave
6 move in the vertical direction.
Fig. 2A, Fig. 2 B and Fig. 3 A, Fig. 3 B are the partial, detailed views of the lift appliance of present embodiment.Fig. 2A, Fig. 2 B are shown
The small situation of carriage internal load, Fig. 3 A, Fig. 3 B show the big situation of carriage internal load.In addition, Fig. 2A be main view, Fig. 2 B be with
The corresponding side view of Fig. 2A.Equally, Fig. 3 A is main view, and Fig. 3 B is side view corresponding with Fig. 3 A.
As shown in Fig. 2A, Fig. 2 B and Fig. 3 A, Fig. 3 B, it is provided with a pair of of deflector sheave mounting rail 7 and a pair of of traction machine pedestal 8.
As shown in Fig. 2 B and Fig. 3, two traction machine pedestals 8 are arranged back-to-back.Deflector sheave is provided between two traction machine pedestals 8
Mounting rail 7.Deflector sheave mounting rail 7 is also arranged back-to-back.Each traction machine pedestal 8 supports each deflector sheave mounting rail 7.Partially at two
Deflector sheave 6 is configured between guide wheel mounting rail 7.As shown in Fig. 2 B, Fig. 3 B, the upper end 71 and lower end 72 of each deflector sheave mounting rail 7
Right angle is bent into the same direction.Therefore, as shown in Fig. 2 B and Fig. 3 B, the side view of each deflector sheave mounting rail 7 is U-shaped.
Equally, the upper end 81 and lower end 82 of each traction machine pedestal 8 are bent into right angle to the same direction.Therefore, as shown in Fig. 2 B and Fig. 3 B,
The side view of each traction machine pedestal 8 is U-shaped.The upper end 71 of each deflector sheave mounting rail 7 is configured in each traction machine pedestal 8
On upper end 81.The lower surface of the upper end 71 of each deflector sheave mounting rail 7 and the upper surface of the upper end 81 of each traction machine pedestal 8 connect
It closes.The length of the vertical direction of each deflector sheave mounting rail 7 is longer than the length of the vertical direction of each traction machine pedestal 8.Therefore, each inclined
The lower end 72 of guide wheel mounting rail 7 is located below than the lower end 82 of each traction machine pedestal 8.Therefore, in the lower end of each traction machine pedestal 8
There is space between 82 and the lower end 72 of each deflector sheave mounting rail 7.In the space, the central axis 61 of deflector sheave 6 is matched relatively
About two adjustment slots 9 guidance set, moves in the vertical direction.Upper and lower adjustment slot 9 be formed in deflector sheave mounting rail 7 with
The corresponding part in the space.Adjustment slot 9 is through hole up and down.The both ends of the central axis 61 of deflector sheave 6 are inserted on these and are lowered
It is whole to use in slot 9.The both ends of the central axis 61 of deflector sheave 6 are protruding to the outside with slot 9 via upper and lower adjustment.
Lower surface and each deflector sheave mounting rail 7 as shown in Fig. 2 B, Fig. 3 B, at the both ends of the central axis 61 of deflector sheave 6
Spring 10 is provided between the upper surface of lower end 72.The vertically i.e. lifting direction setting of spring 10.Spring 10 is in Vertical Square
It is flexible upwards.Spring 10 constitutes the position control that the position of vertical direction of deflector sheave 6 is correspondingly controlled with the value of carriage internal load
Portion processed.Fig. 2A, Fig. 2 B show the state of the stretching of spring 10.In addition, Fig. 3 A, Fig. 3 B show the state of the contraction of spring 10.Spring 10
Support deflector sheave 6.Spring 10 can be stretched by it moves in the vertical direction deflector sheave 6.In addition, the spring when spring 10 is normal
When several values is too small, deflector sheave 6 cannot be supported, on the other hand, when the value of the spring constant of spring 10 is excessive, spring 10 is obtained not
To desired displacement.Therefore, the value that the spring constant of spring 10 is appropriately selected to be suitble to, enables spring 10 to support
Deflector sheave 6, and the adjustment of the vertical direction position of deflector sheave 6 can be carried out well.
Herein, so-called spring constant is to assign power necessary to the displacement of per unit to spring.That is, so-called spring constant is
The ratio between displacement to the load and spring of spring, their relationship are expressed by following formula.
Load=spring displacement × spring constant
In addition, the deflector sheave 6 of carriage internal load hour is referred to as " deflector sheave 6a ", by the situation as shown in Fig. 2A, Fig. 2 B
Under spring 10 be referred to as " spring 10a ".Equally, as shown in Fig. 3 A, Fig. 3 B, deflector sheave 6 of carriage internal load when big is referred to as " partially
Spring 10 in this case is referred to as " spring 10b " by guide wheel 6b ".It can define with reference to the accompanying drawings, the decrement of spring 10a compares bullet
The decrement of spring 10b is small.When carriage internal load reduces, deflector sheave 6 is mobile to the position of deflector sheave 6a.3 pairs of rope ropes as a result,
The winding angle of wheel 5 reduces.Therefore, the tractive force generated between rope sheave 5 and rope 3 reduces.As a result, brake promptly stops
The deceleration of carriage 1 when only reduces.In addition, winding angle of the carriage internal load in the case where small is referred to as θ a below, by carriage
Winding angle in the case that internal load is big is referred to as θ b.Herein, so-called winding angle corresponds to the part that rope 3 is contacted with rope sheave 5
Angle.
Before the movement for the lift appliance for illustrating present embodiment, its principle is illustrated first.
Under steam the deceleration of carriage when emergent stopping depend on the inertia of (1) elevator device, (2) braking torque,
And tractive force these three elements between (3) rope sheave 5 and rope 3.These three elements are illustrated below.
(1) inertia of elevator device
The inertia of so-called elevator device is the inertia force of elevator device.In general, carrying out emergent stopping in carriage movement
In the case of, in the case where the inertia of elevator device is small, i.e. carriage internal load it is small in the case where, the deceleration of carriage 1 increases, instead
It, in the case where inertia is big, i.e. carriage internal load it is big in the case where, the deceleration of carriage 1 reduces.
(2) braking torque
Torque when so-called braking torque is the stopping of the brake of traction machine 4.In the case where braking torque is big, carriage
1 deceleration increases, conversely, the deceleration of carriage 1 reduces in the case where braking torque is small.
(3) tractive force between rope sheave 5 and rope 3
Tractive force between the rope sheave 5 and rope 3 of so-called traction machine 4 is the frictional force generated between rope 3 and rope sheave 5.
The frictional force is referred to as to the tractive force of rope 3 below.Using the tractive force of rope 3, the rotary force of traction machine 4 is via 3 quilt of rope
It is converted into moving up and down for carriage 1.Therefore, the length for being wound in the rope 3 of rope sheave 5 is longer, i.e., winding angle is bigger, then rope 3
Tractive force it is bigger.Conversely, the length for being wound in the rope 3 of rope sheave 5 is shorter, i.e., winding angle is smaller, then tractive force is smaller.This
Place, so-called " length for being wound in the rope 3 of rope sheave 5 " be the rope 3 for the part that rope sheave 5 is contacted with rope 3 length, i.e. with volume
Around the length of the corresponding rope 3 in angle.
Next, being illustrated to the relationship of tractive force and braking torque.
In the case where braking torque is smaller than the tractive force of rope 3, the deceleration of carriage 1 is determined by braking torque.
On the other hand, in the case where more than the tractive force that braking torque is rope 3, before generating full application of brake torque, by
To slide between rope 3 and rope sheave 5 in tractive force limit.Therefore, the braking torque higher than tractive force limit will not
It is transmitted to carriage 1.In addition, so-called tractive force limit is the maximum value of tractive force.
As described above, in the case where braking torque is fixed, can also be made and making the size variation of tractive force
The deceleration of carriage 1 changes.
Next, in general lift appliance carriage deceleration and the relationship of carriage internal load be illustrated.Fig. 7 is
The curve graph of the relationship of carriage deceleration and carriage internal load is shown.In Fig. 7, the longitudinal axis is the deceleration of carriage 1, and horizontal axis is sedan-chair
Load factor in compartment.Load factor [%] is the seating rate [%] of carriage 1 in so-called carriage.
In general lift appliance, it is by the weight set of counterweight, so that the weight of counterweight is equal to carriage useful load
The sum of 1/2 and car mass.That is, be by the weight set of counterweight so that when seating rate is 50% carriage weight and counterweight
Weight balancing.Fig. 7 indicates the deceleration of the carriage in such lift appliance when carriage emergent stopping.In Fig. 7, D1It is
Curve graph of carriage in the case where emergent stopping in advancing upwards, D2It is the carriage in advancing downwards in emergent stopping
In the case where curve graph.Feature below out is understood from Fig. 7.
(a) it is the situation that carriage internal load is small and carriage moves downwards that the deceleration of carriage, which reaches maximum condition,.
(b) it is the situation that carriage internal load is big and carriage moves downwards that the deceleration of carriage, which reaches the smallest condition,.
(c) in the case that carriage moves downwards, along with the increase of carriage internal load, the deceleration of carriage reduces.
(d) in the case that carriage is moved upward, along with the increase of carriage internal load, the deceleration of carriage increases.That is,
Phenomenon is opposite with above-mentioned (c).
(e) difference of the maxima and minima of the deceleration of the carriage generated for the variation of load factor in carriage, carriage
It is big when being moved upward when moving downwards than carriage.In addition, the difference is the amplitude of fluctuation of deceleration.
As a result, in general lift appliance, deceleration changes according to load factor in carriage and direction of travel.Therefore,
When carriage emergent stopping, there is the case where generating big deceleration.Therefore, in the present embodiment, by being contained with carriage
Lotus, which changes, correspondingly adjusts deceleration, to inhibit the generation of big deceleration.Specifically, adjusting deflector sheave 6 using spring 10
Vertical direction position.As a result, change the tractive force of rope 3, mitigates impact when emergent stopping.It is special in order to mitigate impact
It is not that deceleration in the case where above-mentioned (a) is big, therefore reduces the deceleration in the case where above-mentioned (a) and be important.Therefore, exist
In present embodiment, the deceleration in the case where reducing above-mentioned (a) is concentrated particularly on.
The movement of the lift appliance of present embodiment is illustrated.
As described above, in the present embodiment, correspondingly adjusting the vertical of deflector sheave 6 with the variation of the load in carriage 1
Direction position.
In order to adjust the vertical direction position of deflector sheave 6, it is provided with spring 10 and deflector sheave installation in the present embodiment
Beam 7.Adjustment slot 9 up and down is provided on deflector sheave mounting rail 7.Deflector sheave 6 is supported by deflector sheave mounting rail 7.Deflector sheave 6
Central axis 61 is guided by upper and lower adjustment slot 9, is moved in the vertical direction.Deflector sheave 6 moves in the vertical direction as a result,.It is specific and
Speech, when carriage internal load is small, as shown in Fig. 2A, Fig. 2 B, spring 10 is stretched, and deflector sheave 6 is moved upward.On the other hand, when
When carriage internal load is big, as shown in Fig. 3 A, Fig. 3 B, spring 10 is shunk, and deflector sheave 6 moves downwards.
As a result, when the load in carriage 1 is small, deflector sheave 6 is moved upward, and is thus wound in the length of the rope 3 of rope sheave 5
Degree shortens, and winding angle reduces.That is, for winding angle=θ a state shown in Fig. 2A.The contact area of rope sheave 5 and rope 3 as a result,
Reduce, therefore the tractive force decline of rope 3.Therefore, even if the braking torque of the brake of traction machine 4 is fixed, can also reduce
The deceleration of carriage 1.
On the other hand, when the load in carriage 1 is big, deflector sheave 6 is moved downwards, is thus wound in the rope 3 of rope sheave 5
Length it is long, winding angle increase.That is, for winding angle=θ b state shown in Fig. 3 A.The contact surface of rope sheave 5 and rope 3 as a result,
Product increases, therefore the tractive force of rope 3 rises.Therefore, even if the braking torque of the brake of traction machine 4 is fixed, can also increase
The deceleration of big carriage 1.
In this way it is possible to the deceleration in the case where reducing above-mentioned (a).In addition, for the difference in above-mentioned (e),
The difference in the case that carriage 1 moves downwards can be reduced.Present embodiment is special in the case where carriage moves downwards as a result,
Not not effectively.In the case where carriage is moved upward, movement is opposite.Therefore, in the case where carriage internal load is big, can reduce
Deceleration, therefore present embodiment is effective.On the other hand, in the case where carriage internal load is small, deceleration increases, but due to subtracting
The absolute value of speed is originally just small, and there is no problem for this.
Therefore, in the present embodiment, even if 1 emergent stopping of carriage, does not generate big deceleration, therefore can always yet
Mitigate impact when emergent stopping.
As described above, in the present embodiment, spring 10 is set so that with the variation of the load in carriage 1 correspondingly from
The vertical direction position of dynamic adjustment deflector sheave 6.The automatic adjusting method of spring 10 is illustrated below.
As shown in figure 8, being oliquely downward applied with load L to the central axis 61 of deflector sheave 6 from rope 3 via deflector sheave 6.It carries
The direction of lotus L and the contact point P of connection rope 3 and deflector sheave 6 are consistent with the direction of the straight line at the center of deflector sheave 6.At this point, rope
The tension generated in rope 3 is bigger, will central axis 61 to deflector sheave 6 generate bigger load L.When the load in carriage 1 is big
When, the tension generated in rope 3 is big, and when the load in carriage 1 is small, the tension generated in rope 3 is small.
As shown in figure 8, load L can be divided into component L1、L2.Component L1It is downward component.Component L2Be with rope sheave 5 and
The component in the parallel direction in the direction of the rope 3 between deflector sheave 6.Therefore, if load L increases, component L1Also increase simultaneously
Greatly.Therefore, the load in carriage 1 is bigger, component L1Also bigger.
According to the principle, in the case that the load in carriage 1 is small, due to component L1It is small, as shown in Fig. 2A, Fig. 2 B, bullet
Spring 10 stretches.Therefore, the vertical direction position of deflector sheave 6 is high.
On the other hand, in the case that the load in carriage 1 is big, due to component L1Greatly, as shown in Fig. 3 A, Fig. 3 B, spring
10 shrink.Therefore, the vertical direction position of deflector sheave 6 is low.
As a result, in the present embodiment, using the variation of the load in spring 10, with carriage 1, correspondingly adjust automatically is inclined
The vertical direction position of guide wheel 6.The decrement of spring 10 by carriage 1 load and spring constant uniquely determine.Therefore, lead to
The spring constant for crossing appropriate selection spring 10, can follow the load in carriage 1 and deflector sheave 6 is adjusted to desired position.
Therefore, even if not measuring the load in carriage 1, also the winding angle of rope 3 can be automatically regulated to be optimum value always.Therefore,
In the present embodiment, the sensor for measuring the load in carriage 1 need not be also set.
As described above, in the present embodiment, lift appliance has: traction machine 4 has rope sheave 5, rotates rope sheave 5
Motor and brake rope sheave 5 brake；Rope 3, connection carriage 1 and counterweight 2, and it is wound in rope sheave 5；Deflector sheave 6,
It is arranged between rope sheave 5 and counterweight 2, and rope 3 is wound in the deflector sheave 6；Deflector sheave mounting rail 7 supports deflector sheave 6, makes
Deflector sheave 6 can move in the vertical direction；And the spring 10 as position control section, with the carriage internal load of carriage 1
Value correspondingly controls the position of the vertical direction of deflector sheave 6.The increase of spring 10 and carriage internal load correspondingly make deflector sheave 6 to
Lower section is mobile, and is correspondingly moved upward deflector sheave with the reduction of carriage internal load.Utilize the up and down direction of deflector sheave 6
Mobile, when can adjust the tractive force of rope 3, therefore can correspondingly control emergent stopping with carriage internal load deceleration,
Mitigate impact.
In addition, in the present embodiment, deflector sheave mounting rail 7 has and enables the central axis 61 of deflector sheave 6 only vertically
The mobile slot 9 of adjustment up and down in direction.Central axis 61 can only move up and down as a result, will not be to transverse shifting.Therefore, local derviation
The mobile stabilization of wheel 6.
In addition, in the present embodiment, between deflector sheave 6 and the lower end 72 of deflector sheave mounting rail 7, being provided with as position
Set the spring 10 of control unit.Spring 10 follows the variation of carriage internal load and stretches.Therefore, the upper and lower position of deflector sheave 6 due to
Spring 10 stretches and is automatically moved.Specifically, spring 10 and the carriage internal load are correspondingly when carriage internal load is big
It shrinks, the position of deflector sheave 6 is moved downwards.On the other hand, when carriage internal load is small, spring 10 and the carriage internal load phase
It stretches with answering, the position of deflector sheave 6 is moved upward.It therefore, can be any by properly selecting the spring constant of spring 10
Determine the moving distance of deflector sheave 6.It therefore, also can be always automatically by the volume of rope 3 even if not measuring the load in carriage 1
Optimum value is set as around angle.
Embodiment 2
Fig. 4 is the schematic block diagram for showing the structure of lift appliance of embodiments of the present invention 2.Present embodiment with it is above-mentioned
The main distinction of embodiment 1 is, is provided with actuator 11 in the present embodiment to replace spring 10.Hereinafter, to this reality
The mode of applying is described in detail.
In the present embodiment, the tractor main body 20 of traction machine 4 is provided with motor 18, brake 16, encoder 12.
Encoder 12 is to detect the detector of the direction of rotation of rope sheave 5 by detecting the direction of rotation of motor 18.Coding
Device 12 generates signal corresponding with the direction of rotation of rope sheave 5.According to the positive and negative of the signal for carrying out self-encoding encoder 12, it is able to detect rope sheave
5 direction of rotation, i.e. carriage 1 moving direction.
For the other structures of traction machine 4, due to identical as embodiment 1, omit the description herein.
In addition, being provided with scale device 13 in carriage 1.Scale device 13 detects the weight in carriage 1 as carriage internal load.Scale
Device 13 exports signal corresponding with the carriage internal load detected.
Carry out the signal of self-encoding encoder 12 and is transferred into elevator control gear 14 from the signal of scale device 13.Elevator control
Device 14 processed is according to these signals, via the flexible of aftermentioned actuator control apparatus 19 control actuator 11.Therefore, in this reality
It applies in mode, the composition of elevator control gear 14 calculates stretching for actuator 11 according to the moving direction of carriage 1 and carriage internal load
The stroke calculation part of contracting amount.
In addition, elevator control gear 14 acts the motor 18 of traction machine 4 via power inverter 15.Also, elevator
Control device 14 acts brake 16 via arrester control device 17.
In the present embodiment, actuator 11 is provided with to deflector sheave 6.Actuator 11 is arranged in vertical.Actuator
11 bearing deflector sheaves 6.Actuator 11 can be such that deflector sheave 6 moves in the vertical direction.Signal warp from elevator control gear 14
Actuator 11 is transferred by actuator control apparatus 19.Actuator 11 is acted according to the signal.Then, deflector sheave 6 passes through
Actuator 11 and move up and down.
In the present embodiment, actuator 11, scale device 13, encoder 12, elevator control gear 14, actuator control dress
Set 19 compositions and carriage internal load value correspondingly control deflector sheave 6 vertical direction position position control section.
Next, being illustrated using Fig. 5 A, Fig. 5 B and Fig. 6 A, Fig. 6 B to the structure of actuator 11.Fig. 5 A, figure
5B and Fig. 6 A, Fig. 6 B are the partial, detailed views of the lift appliance of present embodiment.It is small that Fig. 5 A, Fig. 5 B show carriage internal load
The case where, Fig. 6 A, Fig. 6 B show the big situation of carriage internal load.In addition, Fig. 5 A is main view, Fig. 5 B is side corresponding with Fig. 5 A
View.Fig. 6 A is main view, and Fig. 6 B is side view corresponding with Fig. 6 A.
Actuator 11 is by upper end 111, lower end 112 and 113 structure of arm for connecting upper end 111 and lower end 112
At.The arm 113 of actuator 11 vertically, i.e. goes up and down direction setting.The arm 113 of actuator 11 stretches in vertical direction.
In the present embodiment, stretching due to arm 113, deflector sheave 6 is guided by upper and lower adjustment slot 9, is moved up and down.
In addition, deflector sheave 6 of the carriage internal load in the case where small is referred to as " deflector sheave 6a " as shown in Fig. 5 A, Fig. 5 B, it will
Actuator 11 in this case is referred to as " actuator 11a ".Equally, as shown in Fig. 6 A, Fig. 6 B, by carriage internal load it is big in the case where
Deflector sheave 6 be referred to as " deflector sheave 6b ", by actuator 11 in this case be referred to as " actuator 11b ".
As a result, in the present embodiment, actuator 11 supports deflector sheave 6, and adjusts the vertical direction position of deflector sheave 6
It sets.According to the signal for coming self-encoding encoder 12 and scale device 13, elevator control gear 14, which determines, stretches still retraction actuator 11.This
Outside, elevator control gear 14 calculates the amount of tension in the case where stretching, calculates the shrinkage in the case of contraction.Elevator control
Device processed controls actuator control apparatus 19 according to these calculated results.Using the control, the adjustment of actuator control apparatus 19 is caused
The arm 113 of dynamic device 11 stretches.Since arm 113 is flexible, deflector sheave 6 is mobile as described below.
(1) situation that carriage moves downwards:
In the case that carriage internal load is small, it is moved upward deflector sheave 6.
In the case that carriage internal load is big, move deflector sheave 6 downwards.
(2) the case where carriage is moved upward:
In the case that carriage internal load is small, move deflector sheave 6 downwards.
In the case that carriage internal load is big, it is moved upward deflector sheave 6.
Above-mentioned (1) is movement same as embodiment 1, but above-mentioned (2) are the movements opposite with embodiment 1.According to
The curve graph of Fig. 7 preferably reduces deceleration when carriage internal load is small, works as sedan-chair it is found that in the case where carriage moves downwards
Compartment internal load increases deceleration when big.Therefore, in the present embodiment, as described in above-mentioned (1), keep deflector sheave 6 mobile.Another party
Face preferably increases deceleration when carriage internal load is small in the case where carriage is moved upward, and subtracts when carriage internal load is big
Small deceleration.Therefore, in the present embodiment, as described in above-mentioned (2), keep deflector sheave 6 mobile.
Due to above-mentioned movement, effect when carriage 1 moves downwards is identical as embodiment 1, but moves upwards in carriage 1
When dynamic, compared with embodiment 1, the deceleration of carriage 1 can be further decreased.
As a result, in the present embodiment, in the case where carriage 1 moves downwards, actuator 11 and carriage internal load
Increase moves deflector sheave 6 downwards, and the reduction with carriage internal load is correspondingly moved upward deflector sheave 6.Separately
On the one hand, in the case where carriage 1 is moved upward, the increase of actuator 11 and carriage internal load correspondingly make deflector sheave 6 to
Top is mobile, and the reduction with carriage internal load moves deflector sheave 6 downwards.
The determination for example by following of the stroke of actuator 11.
The situation for being divided into the case where carriage 1 is moved upward and moving downwards prepares two look-up tables.Each look-up table is pre-
The corresponding relationship of the length [cm] of load factor in carriage [%] and actuator 11 has first been determined.For example, in upward look-up table
Be previously determined to be, in carriage load factor be 0% or more, less than 20% in the case where, the length of actuator 11 is 00 cm,
In carriage load factor be 20% or more, less than 40% in the case where, the length of actuator 11 is △ △ cm ... etc..Downward looks into
It looks for also the same such in table.Elevator control gear 14 is retrieved corresponding with current carriage internal load from the look-up table as a result,
The length of actuator 11.Then, elevator control gear 14 compares the length of current actuator 11 and the actuator 11 retrieved
Length, to determine the stroke of actuator 11.
In addition, the flexible method for determination of amount of actuator 11 is not limited to the situation.For example, can be moved upwards by carriage 1
Dynamic situation and situation about moving downwards prepare to be calculated using carriage internal load as the function of parameter according to the function.Or
Person can use other methods and be calculated.
For other structures and movement, due to identical as embodiment 1, the description thereof will be omitted herein.
As a result, in the present embodiment, in the same manner as embodiment 1, lift appliance has: rope 3, connects carriage 1
With counterweight 2；Rope sheave 5 and deflector sheave 6, rope 3 are wound in the rope sheave 5 and deflector sheave 6；And deflector sheave mounting rail 7, with can
The mode for adjusting the vertical direction position of deflector sheave 6 supports deflector sheave 6.In the present embodiment, as shown in above-mentioned (1), (2),
Correspondingly deflector sheave 6 is moved upwards or downwards with the moving direction of carriage internal load and carriage 1.
As a result, in the case where carriage 1 moves downwards and carriage internal load is small and carriage 1 is moved upward and sedan-chair
In the case that compartment internal load is big, it is moved upward deflector sheave 6.The length for being wound in the rope 3 of rope sheave 5 as a result, shortens, winding
Angle reduces.As a result, the tractive force of rope 3 declines.Therefore, even if the feelings fixed in the braking torque of the brake of traction machine 4
Under condition, it can also reduce the deceleration of carriage 1.
On the other hand, in the case where carriage 1 is moved upward and carriage internal load is small and carriage 1 moves downwards
And in the case that carriage internal load is big, move deflector sheave 6 downwards.It is wound in the length of the rope 3 of rope sheave 5 as a result,
Winding angle increases.As a result, the tractive force of rope 3 increases.Therefore, even if the braking torque in the brake of traction machine 4 is fixed
In the case where, also it is capable of increasing the deceleration of carriage 1.
As described above, in the present embodiment, correspondingly moving the vertical direction position of deflector sheave 6 with carriage internal load
It is dynamic, therefore in the same manner as above embodiment 1, deceleration when emergent stopping can be correspondingly controlled with carriage internal load, from
And mitigate impact.
Also, encoder 12 in the present embodiment, can be utilized, detection be that carriage 1 is moved upward or carriage 1
It moves downwards.Carriage internal load is not only considered as a result, it is also contemplated that the moving direction of carriage, and make the vertical direction of deflector sheave 6
Position is mobile.As a result, carriage 1 upwards and either in lower section in the case where movement, can inhibit always
The generation of the big deceleration of impact is brought to passenger, and can reduce the amplitude of fluctuation of the deceleration of carriage 1.
In addition, in the present embodiment, by being constituted position control section with lower component: actuator 11 supports deflector sheave, and
It can stretch；Scale device 13 measures carriage internal load；Encoder 12 is detected by detecting the direction of rotation of motor 18
The moving direction of carriage 1；As the elevator control gear 14 of stroke calculation part, according in the carriage measured by scale device 13
The moving direction of load and the carriage 1 detected by encoder 12 calculates the stroke of actuator 11；And actuator control dress
19 are set, according to by the calculated stroke of stroke calculation part, keeps actuator 11 flexible.Actuator 11 and carriage internal load
It changes and the moving direction of carriage correspondingly stretches, thus control the position of the vertical direction of deflector sheave 6.Actuator 11 as a result,
The position of deflector sheave 6 can be correspondingly controlled with the variation of carriage internal load and the moving direction of carriage.Above embodiment 1 is special
Be not in the case where carriage 1 moves downwards effectively, but in the present embodiment, any feelings in upwards and downwards
Under condition all effectively.
In the present embodiment, in the case where carriage 1 moves downwards, the increase phase of actuator 11 and carriage internal load
Move deflector sheave 6 downwards, the reduction with carriage internal load is correspondingly moved upward deflector sheave 6.On the other hand,
In the case where carriage 1 is moved upward, actuator 11 and the increase of carriage internal load move deflector sheave 6 upwards
Dynamic, the reduction with carriage internal load moves deflector sheave 6 downwards.The appointing upwards and in lower section in carriage 1 as a result,
In the case that one direction is mobile, the generation of unnecessary big deceleration can be inhibited.In addition, carriage 1 upwards and under
To in the case where movement either in side, the amplitude of fluctuation of deceleration can be reduced.
Claims (4)
1. a kind of lift appliance, which has:
Traction machine has rope sheave, makes the motor of the rope sheave rotation and the brake of the braking rope sheave；
Rope connects carriage and counterweight, and is wound in the rope sheave；
Deflector sheave is arranged between the rope sheave and the counterweight, and the rope winding is in the deflector sheave；
Deflector sheave mounting rail supports the deflector sheave, the deflector sheave is enable to move in the vertical direction；And
Position control section correspondingly controls the position of the vertical direction of the deflector sheave with the value of the carriage internal load of the carriage
It sets,
The increase of the position control section and the carriage internal load moves the deflector sheave downwards, with the sedan-chair
The reduction of compartment internal load is correspondingly moved upward the deflector sheave；
Wherein, the position control section is made of the spring for supporting the deflector sheave,
The spring and the variation of the carriage internal load are correspondingly stretched, and the position of the vertical direction of the deflector sheave is thus controlled
It sets.
2. a kind of lift appliance, which has:
Traction machine has rope sheave, makes the motor of the rope sheave rotation and the brake of the braking rope sheave；
Rope connects carriage and counterweight, and is wound in the rope sheave；
Deflector sheave is arranged between the rope sheave and the counterweight, and the rope winding is in the deflector sheave；
Deflector sheave mounting rail supports the deflector sheave, the deflector sheave is enable to move in the vertical direction；And
Position control section correspondingly controls the position of the vertical direction of the deflector sheave with the value of the carriage internal load of the carriage
It sets,
The increase of the position control section and the carriage internal load moves the deflector sheave downwards, with the sedan-chair
The reduction of compartment internal load is correspondingly moved upward the deflector sheave；
Wherein, the position control section with lower component by being constituted:
Actuator supports the deflector sheave, and can stretch；
Scale device measures the carriage internal load；
Encoder detects the moving direction of the carriage by detecting the direction of rotation of the motor；
Stroke calculation part is detected according to the carriage internal load that is measured by the scale device and by the encoder
The moving direction of the carriage calculates the stroke of the actuator；And
Actuator control apparatus stretches the actuator according to by the calculated stroke of the stroke calculation part
Contracting,
The actuator correspondingly stretches with the variation of the carriage internal load and the moving direction of the carriage, thus controls institute
State the position of the vertical direction of deflector sheave.
3. lift appliance according to claim 1 or 2, wherein
The deflector sheave mounting rail has upper and lower adjustment tank, which is arranged in vertical, and has been inserted into described inclined
The axis of guide wheel, to be guided to the movement of the vertical direction of the axis.
4. lift appliance according to claim 2, wherein
In the case where the carriage moves downwards, the increase of the actuator and the carriage internal load correspondingly makes described
Deflector sheave moves downwards, and the reduction with the carriage internal load is correspondingly moved upward the deflector sheave,
In the case where the carriage is moved upward, the increase of the actuator and the carriage internal load correspondingly makes described
Deflector sheave is moved upward, and the reduction with the carriage internal load moves the deflector sheave downwards.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| PCT/JP2015/070698 WO2017013737A1 (en) | 2015-07-21 | 2015-07-21 | Elevator device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107848760A CN107848760A (en) | 2018-03-27 |
| CN107848760B true CN107848760B (en) | 2019-07-23 |
Family
ID=57834962
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201580081810.7A Expired - Fee Related CN107848760B (en) | 2015-07-21 | 2015-07-21 | Lift appliance |
Country Status (3)
| Country | Link |
|---|---|
| JP (1) | JP6494760B2 (en) |
| CN (1) | CN107848760B (en) |
| WO (1) | WO2017013737A1 (en) |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1612841A (en) * | 2002-01-09 | 2005-05-04 | 通力股份公司 | Elevator |
| JP4848781B2 (en) * | 2006-01-30 | 2011-12-28 | 三菱電機株式会社 | Elevator equipment |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5078046A (en) * | 1973-11-12 | 1975-06-25 | ||
| JP4651855B2 (en) * | 2001-05-21 | 2011-03-16 | 三菱電機株式会社 | Elevator equipment |
-
2015
- 2015-07-21 WO PCT/JP2015/070698 patent/WO2017013737A1/en active Application Filing
- 2015-07-21 CN CN201580081810.7A patent/CN107848760B/en not_active Expired - Fee Related
- 2015-07-21 JP JP2017529207A patent/JP6494760B2/en not_active Expired - Fee Related
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1612841A (en) * | 2002-01-09 | 2005-05-04 | 通力股份公司 | Elevator |
| JP4848781B2 (en) * | 2006-01-30 | 2011-12-28 | 三菱電機株式会社 | Elevator equipment |
Also Published As
| Publication number | Publication date |
|---|---|
| JPWO2017013737A1 (en) | 2017-11-02 |
| WO2017013737A1 (en) | 2017-01-26 |
| JP6494760B2 (en) | 2019-04-03 |
| CN107848760A (en) | 2018-03-27 |
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