CN111372882A - Mounting device for elevator compensating ropes - Google Patents
Mounting device for elevator compensating ropes Download PDFInfo
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- CN111372882A CN111372882A CN201780096959.1A CN201780096959A CN111372882A CN 111372882 A CN111372882 A CN 111372882A CN 201780096959 A CN201780096959 A CN 201780096959A CN 111372882 A CN111372882 A CN 111372882A
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- rope
- counterweight
- elevator
- car
- compensating
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- 238000009434 installation Methods 0.000 claims abstract description 19
- 238000006243 chemical reaction Methods 0.000 claims abstract description 15
- 239000011120 plywood Substances 0.000 description 19
- 238000010586 diagram Methods 0.000 description 5
- 239000000725 suspension Substances 0.000 description 4
- 230000000694 effects Effects 0.000 description 3
- 230000002146 bilateral effect Effects 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 239000000853 adhesive Substances 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66B—ELEVATORS; ESCALATORS OR MOVING WALKWAYS
- B66B7/00—Other common features of elevators
- B66B7/06—Arrangements of ropes or cables
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66B—ELEVATORS; ESCALATORS OR MOVING WALKWAYS
- B66B7/00—Other common features of elevators
- B66B7/06—Arrangements of ropes or cables
- B66B7/08—Arrangements of ropes or cables for connection to the cars or cages, e.g. couplings
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- Lift-Guide Devices, And Elevator Ropes And Cables (AREA)
Abstract
The installation device of the elevator compensating rope of the invention is used for an elevator which comprises: a car and a counterweight that ascend and descend in opposite directions to each other in a hoistway; a main rope suspending the car and the counterweight; and an elevator compensating rope connected to the car and the counterweight and suspended in the hoistway. The elevator compensating rope mounting device of the present invention is mounted on at least one of a car and a counterweight, and comprises: a direction conversion device for converting the direction of the elevator compensation rope at least one of the two ends of the elevator compensation rope; a rope end holding adjustment member connected to an elevator compensating rope; and a holding member that holds the rope end holding adjustment member to the car or the counterweight.
Description
Technical Field
The invention relates to a mounting device for an elevator compensating rope, which is used for an elevator comprising: a car and a counterweight that ascend and descend in opposite directions to each other in a hoistway; a main rope suspending the car and the counterweight; and an elevator compensating rope connected to the car and the counterweight and suspended in the hoistway.
Background
In recent elevators for high floors, the weight of the main ropes added to the weight of the car and the counterweight cannot be ignored. That is, when the car is positioned near the uppermost floor or near the lowermost floor, the weight balance between the car and the counterweight is significantly lost by the weight of the main ropes, and therefore, slippage occurs between the hoisting machine and the main ropes. Therefore, the following technique is used: an elevator compensating rope is provided to hang down in a hoistway by connecting a car bottom and a counterweight bottom, and imbalance caused by the self-weight of a main rope is cancelled by the self-weight of the compensating rope.
A conventional elevator compensating rope mounting apparatus is mounted on a lower portion of a car or a counterweight of an elevator, and a compensating rope and a rope hook for mounting a leading end of the compensating rope are disposed on a straight line in a vertical direction. Therefore, the height of the car or the counterweight increases, and the space in the height direction in the hoistway cannot be effectively used.
In an elevator to which the elevator compensating rope attachment device described in patent document 1 is attached, a special weight plate manufactured so that the longitudinal direction of the weight plate is perpendicular is used as a loading weight. The upper and lower of the counterweight plate are respectively fixed on the upper and lower frames of the loading chamber in the loading chamber of the counterweight. Further, a gap is provided between the weight plates. In which gap a rope loop is arranged, which rope loop mounts the front end of the elevator compensating rope.
Documents of the prior art
Patent document
Patent document 1: japanese laid-open patent publication No. 2004-75312
Disclosure of Invention
Problems to be solved by the invention
However, in order to attach the elevator compensating rope attachment device described in patent document 1 to an elevator, it is necessary to manufacture a special counterweight sheet for each elevator and use the counterweight sheet for loading the counterweight.
The present invention has been made to solve the above-described problems, and an object of the present invention is to provide an elevator compensating rope mounting apparatus capable of effectively utilizing a space in a height direction in a hoistway without using a special counterweight in which a longitudinal direction of the counterweight is a vertical direction in a counterweight to load.
Means for solving the problems
The installation device of the elevator compensating rope of the invention is used for an elevator which comprises: a car and a counterweight that ascend and descend in opposite directions to each other in a hoistway; a main rope suspending the car and the counterweight; and an elevator compensating rope connected to the car and the counterweight and suspended in the hoistway. The elevator compensating rope mounting device of the present invention is mounted on at least one of a car and a counterweight, and comprises: a direction conversion device for converting the direction of the elevator compensation rope at least one of the two ends of the elevator compensation rope; a rope end holding adjustment member connected to an elevator compensating rope; and a holding member that holds the rope end holding adjustment member to the car or the counterweight.
Effects of the invention
According to the installation device of the elevator compensating rope of the present invention, a generally used flat-laying counterweight can be used as the loading counterweight. Therefore, it is not necessary to use a special weight plate in which the longitudinal direction of the weight plate is the vertical direction. In addition, the elevator compensating rope extends upwards from the compensating rope at the bottom of the shaft by a tension pulley and is changed to the downward direction or the transverse direction by a direction changing device. The front end of the compensating rope whose direction is changed is fixed by a rope end holding and adjusting member. Therefore, the rope end holding and adjusting member is provided at a position offset from the vertical line of the tension sheave for compensating the rope. Thus, the counterweight can be lowered to a position immediately before contact with the compensating rope tensioning sheave.
Thus, it is possible to provide an elevator compensating rope mounting apparatus capable of effectively utilizing the space in the height direction in the hoistway without using a special counterweight in which the longitudinal direction of the counterweight is the vertical direction in the counterweight mounting.
Drawings
Fig. 1 is an overall configuration diagram of an elevator provided with an elevator compensating rope mounting apparatus according to embodiment 1 of the present invention.
Fig. 2 is a front view of the counterweight in embodiment 1.
Fig. 3 is a front view of an elevator compensating rope mounting apparatus according to embodiment 1.
Fig. 4 is a side view of an elevator compensating rope mounting apparatus according to embodiment 1.
Fig. 5 is a diagram for illustrating the effect of embodiment 1, and is a front view of the counterweight in the case where the direction conversion device is not provided.
Fig. 6 is a front view of the counterweight in embodiment 2.
Fig. 7 is a front view of the counterweight in embodiment 3.
Fig. 8 is a plan view of the direction conversion device in embodiment 3.
Fig. 9 is an overall configuration diagram of an elevator provided with an elevator compensating rope mounting apparatus according to embodiment 4.
Fig. 10 is a front view of a car lower portion in embodiment 4.
Fig. 11 is a front view of a car lower portion in embodiment 5.
Fig. 12 is a front view of the lower part of the car in embodiment 6.
Fig. 13 is a plan view of a direction conversion device in embodiment 6.
Detailed Description
Hereinafter, an embodiment of the installation device of an elevator compensating rope according to the present invention will be described with reference to the drawings. The same or corresponding portions are denoted by the same reference numerals, and redundant description thereof is omitted.
Fig. 1 is an overall configuration diagram of an elevator provided with an elevator compensating rope mounting apparatus according to embodiment 1 of the present invention.
In the hoistway 1, the car 3 and the counterweight 4 are suspended by the main ropes 10 and arranged to be movable in opposite directions.
A machine room 5 is provided in an upper portion of the hoistway 1. A hoisting machine 6 and a deflector sheave 7 are provided at intervals in the machine room 5. The hoisting machine 6 has a drive device main body 8 and a drive sheave 9. The drive sheave 9 is rotated by the drive device main body 8. A main rope 10 is wound around the drive sheave 9 and the deflector sheave 7. The car 3 is guided by a car-side guide rail 2a provided in the hoistway 1 to move up and down in the hoistway 1 by the driving force of the hoisting machine 6. The counterweight 4 is guided by a counterweight-side guide rail 2b provided in the hoistway 1 by the driving force of the hoisting machine 6 to move up and down in the hoistway 1.
At the lower part of the counterweight 4 there is provided a mounting device 31 for the compensating ropes of the elevator. One of both ends of the compensating rope 11 serving as an elevator compensating rope is attached to the counterweight 4 by the elevator compensating rope attaching device 31. The compensating ropes 11 are mounted in the centre of the counterweight 4. The compensating rope 11 is wound around a compensating rope tension sheave 12 provided at the bottom of the hoistway 1. The other of the compensating ropes 11 is attached to the lower part of the car 3.
Next, the counterweight 4 will be described with reference to fig. 2. Fig. 2 is a front view of the counterweight 4 in fig. 1. Fig. 2 is a view from line II-II in fig. 1.
The counterweight 4 includes an upper frame 13, a pair of left and right suspension frames 14, and a lower frame 15. The upper frame 13 is suspended by the main rope 10. Between the upper frame 13 and the lower frame 15 a loading weight 17 is placed flat. The loading weight 17 is restrained from shifting in the horizontal direction by the left and right hanging frames 14. The left and right suspension frames 14 extend below the lower frame 15, and a mount 16 is provided at the front end thereof.
The elevator compensating rope mounting device 31 includes: a pulley 20 as a direction switching device; a buckle 25 as a rope end holding and adjusting member; and a nut 24 as a retainer. A compensating rope 11 is suspended on the sheave 20. A buckle 25 is attached to the front end 11a of the compensating rope 11. The cord lock 25 is attached to the mount 16 by a nut 24. The compensating rope 11 is wound around a compensating rope tension sheave 12 at the bottom of the hoistway 1 on the side not attached to the buckle 25. The pulley 20 may be a non-rotating circular plate.
Next, details of the elevator compensating rope attachment device 31 will be described with reference to fig. 3 and 4. Fig. 3 is a front view and fig. 4a side view of a mounting device 31 for the compensating ropes of an elevator.
The pulley 20 is composed of a mounting member 21, a shaft 22, and a plurality of sheaves 23. The shaft 22 and the sheave 23 are attached to the lower frame 15 by an attachment 21. The sheave 23 is rotatable about the shaft 22. As shown in fig. 4, the compensating ropes 11 are hung on 3 sheaves 23 having rope grooves, respectively.
As shown in fig. 3 and 4, the front end 11a of the compensating rope 11 is connected to the buckle 25. The cord lock 25 is made of metal and is composed of a socket 25s, a rod 25r, and an external screw 25 f. The front end portion 11a is fixed in the socket 25s by, for example, molten metal or wedge. The rod 25r is an elongated cylindrical rod. The socket 25s and the rod 25r are fixed by pins, for example. The male screw 25f is provided on the side of the rod 25r without the socket 25s, and is held to the mount table 16 by the nut 24.
Next, an operation of the elevator according to embodiment 1 will be described with reference to fig. 2.
In fig. 2, for example, consider the case where the compensating ropes 11 are pulled downward. On the left and right mounting bases 16, clockwise torque is generated on one side and counterclockwise torque is generated on the other side by the left and right cord fasteners 25 and nuts 24, respectively. However, since the pulley 20 and the nut 24 are disposed symmetrically with respect to the center line C1 of the counterweight 4, their torques are balanced. Thus, no torque in either one of the clockwise direction and the counterclockwise direction is applied to the counterweight 4 by the compensating rope 11.
The rope hitch 25 is horizontally offset from the tension sheave 12 for compensating rope shown by a broken line. Therefore, the cord lock 25 and the tension sheave 12 for compensating rope do not contact each other. That is, the counterweight 4 can be lowered to a position before the compensating rope tension sheave 12 comes into contact with the sheave 20.
Fig. 5 is a front view of the counterweight 40 of fig. 2 without the sheave 20. In the counterweight 40, the weight plate is laid flat as in the case of embodiment 1. As shown in fig. 5, a second lower frame 26 and a third lower frame 27 are provided below the lower frame 15. The cord lock 25 is fixed to the second lower frame 26. Since the cord lock 25 has the long rod 25r, the third lower frame 27 must be provided at a position separated downward from the second lower frame 26 by the length of the rod 25 r. The compensating rope 11 is attached to the buckle 25 on a straight line in the vertical direction. Therefore, the counterweight 40 can only be lowered to the position shown by the broken line before the tension sheave 12 for the compensating rope comes into contact with the third lower frame 27.
As described above, the installation device 31 for an elevator compensating rope according to embodiment 1 is used for an elevator including: a car 3 and a counterweight 4 that ascend and descend in opposite directions to each other in the hoistway 1; a main rope 10 that suspends the car 3 and the counterweight 4; and a compensating rope 11 connected to the car 3 and the counterweight 4 and suspended in the hoistway 1. The elevator compensating rope attachment device 31 according to embodiment 1 is attached to the counterweight 4, and includes: a sheave 20 that switches the direction of the compensating rope 11 at one of both ends of the compensating rope 11; a rope buckle 25 connected with the compensation rope 11; and a nut 24 that holds the cord lock 25 to the counterweight 4.
According to the elevator compensating rope attachment apparatus 31 of embodiment 1, a generally used flat-laying counterweight sheet can be used as the loading counterweight 17. Therefore, it is not necessary to use a special weight plate in which the longitudinal direction of the weight plate is the vertical direction. Further, the compensating rope 11 extends upward from the compensating rope tension sheave 12 at the bottom of the hoistway 1, and is redirected downward by the sheave 20. The compensating ropes 11, the direction of which has changed, are fixed to the rope loop 25. Therefore, the rope hitch 25 is provided at a position offset from the plumb line of the tension sheave 12 for compensating rope. Therefore, the counterweight 4 can be lowered to a position immediately before contact with the tension sheave 12 for the compensating rope.
Thus, it is possible to provide an elevator compensating rope mounting apparatus capable of effectively utilizing the space in the height direction in the hoistway without using a special counterweight in which the longitudinal direction of the counterweight is the vertical direction in the counterweight mounting.
2 pulleys 20 are provided. Thus, the clockwise and counterclockwise torques generated by the compensating ropes 11 are balanced for the counterweight 4. This enables the counterweight 4 to be lifted and lowered stably.
The pulley 20 and the nut 24 are disposed symmetrically with respect to the center line C1 of the counterweight 4. Thus, the clockwise and counterclockwise torques generated by the compensating ropes 11 are balanced for the counterweight 4. This enables the counterweight 4 to be lifted and lowered stably.
The mounting means 31 of the elevator compensating rope are mounted to the counterweight 4. Therefore, the sheave 23 provided in the counterweight 4 can function as a counterweight. This can reduce the number of weight plates to be loaded on the counterweight 4. Further, by reducing the number of weight plates, the height of the counterweight 4 can be reduced. This makes it possible to more effectively utilize the space in the height direction in the hoistway.
The sheave 20 has a plurality of sheaves 23, and a plurality of compensating ropes 11 are attached to the plurality of sheaves 23. The pulley 20 is capable of rotating. This enables smooth change of the direction of the compensating rope 11.
In embodiment 1, the cord lock 25 is fixed to the mount base 16 by the nut 24, but may be fixed by providing a female screw in the mount base 16. Further, the fixing may be performed by an adhesive.
In addition, the roping on the main rope 10 side of the car 3 and the counterweight 4 is 1-to-1 roping. Since the same effect can be expected as long as the roping of the car 3 and the counterweight 4 is the same, the roping of the car 3 and the counterweight 4 may be 2-to-1 roping, for example.
Embodiment 2.
Next, an elevator compensating rope attachment apparatus according to embodiment 2 will be described with reference to fig. 6. The elevator compensating rope installation apparatus according to embodiment 2 includes 4 direction conversion devices.
Fig. 6 is a front view of a counterweight provided with the installation apparatus for an elevator compensating rope of embodiment 2. Mounting bases 16a and 16b are provided below the counterweight 41 via the hanging frame 14. The mount 16a holds a cord fastener 25a by a nut 24 a. The mount 16b holds a cord lock 25b by a nut 24 b. The cord lock 25a and 25b constitute a cord end holding adjustment member, and the nut 24a and 24b constitute a holding member.
Further, 4 pulleys 50a, 50b, 50c, and 50d as direction switching devices are provided in the lower frame 15. The 4 pulleys 50a to 50d are attached symmetrically with respect to the center line C2 of the counterweight 41. The elevator compensating rope attachment device 32 is composed of 4 sheaves 50a to 50d, rope loops 25a to 25b, and nuts 24a to 24 b.
The compensating ropes 11 are constituted by ropes 61 and 62. A rope 61 is hung on the pulleys 50b and 50 d. The front end 61a of the cord 61 is attached to the buckle 25 b. The end of the rope 61 opposite to the leading end 61a is wound around the tension sheave 12 for compensating rope.
Further, a rope 62 is hung on the pulleys 50c and 50 a. The front end 62a of the cord 62 is attached to the buckle 25 a. The end of the rope 62 opposite to the leading end 62a is wound around the tension sheave 12 for compensating rope.
As shown in fig. 6, the 4 pulleys 50a to 50d and the nuts 24a to 24b are provided in bilateral symmetry with respect to the center line C2 of the counterweight 41. Therefore, the torque generated by the compensating ropes 11 does not act on the counterweight 41.
As described above, the elevator compensating rope attachment device 32 according to embodiment 2 is attached to the counterweight 41, and includes: 4 sheaves 50a to 50d that switch the direction of the compensating ropes 11 at the leading end portions 61a and 62a of the compensating ropes 11; rope buckles 25 a-25 b connected with the compensation rope 11; and nuts 24a to 24b that hold the buckles 25a to 25b to the counterweight 41. Thus, it is possible to provide an elevator compensating rope mounting apparatus capable of effectively utilizing the space in the height direction in the hoistway without using a special counterweight in which the longitudinal direction of the counterweight is the vertical direction in the counterweight mounting.
4 pulleys 50a to 50d are provided. This enables the counterweight 41 to be lifted and lowered stably.
The pulleys 50a to 50d and the nuts 24a to 24b are provided symmetrically with respect to the center line C2 of the counterweight 41. This enables the counterweight 41 to be lifted and lowered stably.
The mounting means 32 of the elevator compensating rope are mounted to the counterweight 41. This reduces the number of weight plates to be mounted on the counterweight, and makes it possible to more effectively utilize the space in the hoistway in the height direction.
Next, an elevator compensating rope attachment apparatus according to embodiment 3 will be described with reference to fig. 7 and 8. The elevator compensating rope installation apparatus according to embodiment 3 includes 1 direction conversion device.
Fig. 7 is a front view of a counterweight provided with a mounting device for an elevator compensating rope according to embodiment 3, and fig. 8 is a plan view of a direction switching device.
A mounting frame 28 is provided below the lower frame 15 of the counterweight 42. The left and right suspension frames 14 extend below the mounting frame 28, and mount bases 16a and 16b are provided at the front ends thereof. A buckle 25a is attached to the mount 16 a. A buckle 25b is attached to the mount 16 b.
A plywood 51 as a direction conversion device is attached to the attachment frame 28 via attachment fittings 29a and 29 b. The plywood 51 is installed in bilateral symmetry with respect to the center line C3 of the counterweight 42. The plywood 51 is formed by alternately stacking two oblong plates 51a and 51b provided with a rope groove. In embodiment 3, 4 plates 51b and 3 plates 51a are alternately stacked (see fig. 8). The elevator compensating rope attachment device 33 is composed of a plywood 51, rope fasteners 25a to 25b, and nuts 24a to 24 b. The plates 51a and 51b constitute sheaves.
The compensating ropes 11 are constituted by ropes 61 and 62. A rope 61 is hung on each of the panels 51b of the plywood panel 51. The front end 61a of the cord 61 is attached to the buckle 25 b. The end of the rope 61 opposite to the leading end 61a is wound around the tension sheave 12 for compensating rope.
Further, a rope 62 is hung on each of the boards 51a of the plywood 51. The front end 62a of the cord 62 is attached to the buckle 25 a. The end of the rope 62 opposite to the leading end 62a is wound around the tension sheave 12 for compensating rope.
Therefore, by changing the horizontal length of the two plates 51a and 51b, the position at which the ropes 61 and 62 hang down on the tension sheave 12 for compensating ropes can be changed arbitrarily.
As shown in fig. 7, the plywood 51 and the nuts 24a to 24b are provided so as to be bilaterally symmetrical with respect to the center line C3 of the counterweight 42. Therefore, the torque generated by the compensating ropes 11 does not act on the counterweight 42.
As described above, the elevator compensating rope attachment apparatus 33 according to embodiment 3 is attached to the counterweight 42, and includes: a plywood 51 that switches the direction of the compensating ropes 11 at the front end portions 61a and 62a of the compensating ropes 11; rope buckles 25 a-25 b connected with the compensation rope 11; and nuts 24a to 24b that hold the cord fasteners 25a to 25b to the counterweight 42. Thus, it is possible to provide an elevator compensating rope mounting apparatus capable of effectively utilizing the space in the height direction in the hoistway without using a special counterweight in which the longitudinal direction of the counterweight is the vertical direction in the counterweight mounting.
The plywood 51 and the nuts 24a to 24b are provided symmetrically with respect to the center line C3 of the counterweight 42. This enables the counterweight 42 to be lifted and lowered stably.
The mounting means 33 of the elevator compensating rope are mounted to the counterweight 42. This reduces the number of weight plates to be mounted on the counterweight, and makes it possible to more effectively utilize the space in the hoistway in the height direction.
The plywood 51 has a plurality of sheaves 51a and 51b, and a plurality of compensating ropes 11 are attached to the sheaves 51a to 51 b. By changing the plate length of the sheaves 51a to 51b, the compensating rope 11 can be lowered to an arbitrary position on the compensating rope tension sheave 12 side. This can increase the degree of freedom of the installation location of the tension sheave 12 for the compensating rope.
Next, an elevator compensating rope attachment apparatus according to embodiment 4 will be described with reference to fig. 9 and 10. In embodiments 1 to 3, the mounting device for the elevator compensating rope is mounted on the counterweight side, but in embodiment 4, the mounting device for the elevator compensating rope is mounted on the car side.
Fig. 9 is an overall configuration diagram of an elevator provided with an elevator compensating rope mounting apparatus according to embodiment 4. A mounting device 34 for the elevator compensating ropes is provided in the lower part of the car 3. One end of the compensating ropes 11 is mounted to the car 3 by means of an elevator compensating rope mounting device 34. The compensating ropes 11 are mounted in the centre of the car 3. A compensating rope tension sheave 12 for the compensating rope in which the compensating rope 11 is wound around the bottom of the hoistway 1. The other end of the compensating ropes 11 is mounted in the lower part of the counterweight 4.
Fig. 10 is a front view of the lower part of the car 3. A suspension frame 54 is provided on a side surface of the car 3. A rectangular lower frame 55 having one side open is provided at a lower portion of the car 3. A mount 56 is provided to block the longitudinal direction of the lower frame 55. The cord lock 25 is attached to the mount 56 by the nut 24.
Further, the pulleys 20 as the direction switching devices are provided on the lower frame 55 so as to be bilaterally symmetrical with respect to the center line C4 of the car 3. The compensating ropes 11 are suspended on pulleys 20. The front end 11a of the compensating rope 11 is attached to the buckle 25. In the compensating rope 11, an end portion on the opposite side to the front end portion 11a extends downward.
As shown in fig. 10, the pulleys 20 and the nuts 24 are provided symmetrically with respect to the center line C4 of the car 3. Therefore, the torque generated by the compensating ropes 11 does not act on the car 3.
In this way, the installation device 34 of the elevator compensating rope in embodiment 4 is used for an elevator having: a car 3 and a counterweight 4 that ascend and descend in opposite directions to each other in the hoistway 1; a main rope 10 that suspends the car 3 and the counterweight 4; and a compensating rope 11 connected to the car 3 and the counterweight 4 and suspended in the hoistway 1. The elevator compensating rope attachment device 34 according to embodiment 4 is attached to the car 3, and includes: a sheave 20 that switches the direction of the compensating rope 11 at least at one of both ends of the compensating rope 11; a rope buckle 25 connected with the compensation rope 11; and a nut 24 that holds the rope hitch 25 to the car 3. Thus, it is possible to provide an elevator compensating rope mounting apparatus capable of effectively utilizing the space in the height direction in the hoistway without using a special weight plate in which the longitudinal direction of the weight plate is the vertical direction in the counterweight mounting.
There are 2 pulleys 20. Thus, the clockwise and counterclockwise torques generated by the compensating ropes 11 are balanced for the car 3. This enables the car 3 to be lifted and lowered stably.
The pulley 20 and the nut 24 are provided symmetrically with respect to the center line C4 of the car 3. Thus, the clockwise and counterclockwise torques generated by the compensating ropes 11 are balanced for the car 3. This enables the car 3 to be lifted and lowered stably.
Furthermore, a mounting device 34 for the elevator compensating ropes is mounted to the car 3. Since the car 3 has a length in the horizontal direction, the rope hitch 25 can be disposed in the horizontal direction. Therefore, the height of the car 3 can be further reduced. This makes it possible to provide an elevator compensating rope mounting device that can more effectively utilize the space in the height direction in the hoistway.
Next, an elevator compensating rope attachment apparatus according to embodiment 5 will be described with reference to fig. 11. In embodiment 5, 3 direction conversion devices are provided.
Fig. 11 is a front view of a lower part of a car 3 provided with the elevator compensating rope mounting apparatus according to embodiment 5. A lower frame 55 is provided at a lower portion of the car 3. The lower frame 55 is provided with mounting tables 56a and 56 b. The mount 56a is attached with a buckle 25a via a nut 24 a. The string clasp 25b is attached to the attachment base 56b by a nut 24 b. The lower frame 55 of the car 3 is provided with 3 sheaves 52a, 52b, and 52c as direction switching devices. The 3 sheaves 52a, 52b, and 52C are disposed symmetrically with respect to the center line C5 of the car 3. The elevator compensating rope attachment device 35 is composed of 3 sheaves 52a to 52c, rope fasteners 25a to 25b, and nuts 24a to 24 b.
The compensating ropes 11 are constituted by ropes 63, 64, 65 and 66. The rope 63 is hung on the pulley 52a, and the tip end 63a is attached to the buckle 25 a. The rope 64 is hung on the pulley 52b, and the tip end portion 64a is attached to the buckle 25 b. The rope 65 is hung on the pulley 52b, and the tip end portion 65a is attached to the buckle 25 a. The rope 66 is hung on the pulley 52c, and the tip end portion 66a is attached to the buckle 25 b. In the ropes 63, 64, 65, and 66, opposite side end portions of the respective front end portions 63a, 64a, 65a, and 66a extend downward.
As shown in fig. 11, the pulleys 52a, 52b, and 52C are disposed symmetrically left and right with respect to the center line C5 of the car 3. Further, the nuts 24a and 24b are disposed left-right symmetrically with respect to the center line C5 of the car 3. Thus, the clockwise and counterclockwise torques generated by the compensating ropes 11 are balanced for the car 3.
In this way, the elevator compensating rope attachment device 35 according to embodiment 5 is attached to the car 3, and includes: pulleys 52a to 52c that switch the direction of the compensating ropes 11 at the leading end portions 63a to 66a of the compensating ropes 11; rope buckles 25 a-25 b connected with the compensation rope 11; and nuts 24a to 24b that hold the rope loops 25a to 25b to the car 3. Thus, it is possible to provide an elevator compensating rope mounting apparatus capable of effectively utilizing the space in the height direction in the hoistway without using a special counterweight in which the longitudinal direction of the counterweight is the vertical direction in the counterweight mounting.
The apparatus includes 3 pulleys 52a to 52 c. This enables the car 3 to be lifted and lowered stably.
The pulleys 52a to 52C and the nuts 24a to 24b are provided symmetrically with respect to the center line C4 of the car 3. This enables the car 3 to be lifted and lowered stably.
Furthermore, a mounting device 35 for the elevator compensating rope is mounted to the car 3. This makes it possible to provide an elevator compensating rope mounting device that can more effectively utilize the space in the height direction in the hoistway.
Next, an elevator compensating rope attachment apparatus according to embodiment 6 will be described with reference to fig. 12 and 13. In embodiment 6, 1 direction conversion device is provided.
Fig. 12 is a front view of the lower part of a car provided with the installation device for elevator compensating ropes of embodiment 6. Fig. 13 is a plan view of the direction conversion device.
A lower frame 55 is provided at a lower portion of the car 3. The lower frame 55 is provided with mounting tables 56a and 56 b. The mount 56a is attached with a buckle 25a via a nut 24 a. The string clasp 25b is attached to the attachment base 56b by a nut 24 b.
Further, a plywood 53 as a direction switching device is provided on the lower frame 55 so as to be bilaterally symmetrical with respect to the center line C6 of the car 3. The plywood 53 is fixed to the lower frame 55 by mounting fittings 29c and 29 d. The plywood 53 is formed by alternately stacking two oblong plates 53a and 53b provided with a rope groove. In embodiment 6, 4 plates 53b and 3 plates 53a are alternately stacked (see fig. 13). The elevator compensating rope mounting device 36 is composed of a plywood 53, rope buckles 25 a-25 b and nuts 24-24 b. The plates 53a and 53b constitute a sheave.
The compensating ropes 11 are constituted by ropes 67 and 68. A rope 67 is hung on the plate 53 b. The front end 67a of the cord 67 is attached to the buckle 25 b. The end of the rope 67 opposite to the tip 67a extends downward.
Further, a rope 68 is hung on the plate 53 a. The front end 68a of the cord 68 is attached to the cord lock 25 a. The end of the cord 68 opposite the tip end 68a extends downward.
Therefore, by changing the horizontal length of the two plates 53a and 53b, the position at which the ropes 67 and 68 hang down can be arbitrarily changed.
As shown in fig. 12, the plywood 53 and the nuts 24a to 24b are provided symmetrically with respect to the center line C6 of the car 3. Thus, the clockwise and counterclockwise torques generated by the compensating ropes 11 are balanced for the car 3.
As described above, the elevator compensating rope mounting apparatus 36 according to embodiment 6 is mounted on the car 3, and includes: a plywood 53 that switches the direction of the compensating ropes 11 at the front end portions 67a and 68a of the compensating ropes 11; rope buckles 25 a-25 b connected with the compensation rope 11; and nuts 24a to 24b that hold the rope loops 25a to 25b to the car 3. Thus, it is possible to provide an elevator compensating rope mounting apparatus capable of effectively utilizing the space in the height direction in the hoistway without using a special counterweight in which the longitudinal direction of the counterweight is the vertical direction in the counterweight mounting.
The plywood 53 and the nuts 24a to 24b are provided symmetrically with respect to the center line C6 of the car 3. This enables the car 3 to be lifted and lowered stably.
Furthermore, a mounting device 36 for the elevator compensating ropes is mounted to the car 3. This makes it possible to provide an elevator compensating rope mounting device that can more effectively utilize the space in the height direction in the hoistway.
The plywood 53 has a plurality of sheaves 53a and 53b, and a plurality of compensating ropes 11 are attached to the plurality of sheaves 53a to 53 b. By changing the plate length of the sheaves 53a to 53b, the compensating rope 11 can be lowered to an arbitrary position on the compensating rope tension sheave 12 side. This can increase the degree of freedom of the installation location of the tension sheave 12 for the compensating rope.
In embodiments 1 to 6, an example in which the mounting device for the elevator compensating rope is mounted on one of the car and the counterweight has been described, but it may be mounted on both the car and the counterweight.
Description of the reference symbols
1: a hoistway; 3: a car; 4. 40, 41, 42: a counterweight; 10: a main rope; 11: compensating ropes (elevator compensating ropes); 20. 50a, 50b, 50c, 50d, 52a, 52b, 52 c: pulleys (direction conversion means); 23: a sheave; 24. 24a, 24 b: a nut (retainer); 25. 25a, 25 b: a cord lock (cord end holding adjustment member); 31. 32, 33, 34, 35, 36: mounting means for the compensating ropes of the elevator; 51. 53: plywood (direction conversion device); 51a, 51b, 53a, 53 b: a plate (sheave); c1, C2, C3: a center line of the counterweight; c4, C5, C6: the centerline of the car.
Claims (6)
1. Installation arrangement of an elevator compensating rope for an elevator having: a car and a counterweight that ascend and descend in opposite directions to each other in a hoistway; a main rope suspending the car and the counterweight; and an elevator compensating rope connected to the car and the counterweight and suspended within the hoistway,
the elevator compensating rope mounting device is mounted on at least one of the car and the counterweight, and includes:
a direction conversion device that converts the direction of the elevator compensation rope at least one of both ends of the elevator compensation rope;
a rope end holding adjustment member connected with the elevator compensating rope; and
and a holding member that holds the rope end holding adjustment member to the car or the counterweight.
2. The installation device of an elevator compensation rope according to claim 1,
the elevator compensating rope mounting device is provided with a plurality of direction conversion devices.
3. Installation of an elevator compensation rope according to claim 1 or 2,
the direction switching device and the holding member are provided symmetrically with respect to the center line of the car or the counterweight.
4. Installation of an elevator compensation rope according to any of claims 1-3,
the mounting device of the elevator compensating rope is mounted to the counterweight.
5. Installation of an elevator compensation rope according to any of claims 1-3,
the installation device of the elevator compensating rope is mounted to the car.
6. Installation of an elevator compensation rope according to any one of claims 1-5,
the direction switching device has a plurality of rope pulleys,
a plurality of the elevator compensating ropes can be installed at the plurality of sheaves.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| PCT/JP2017/042232 WO2019102589A1 (en) | 2017-11-24 | 2017-11-24 | Elevator compensation rope installation device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN111372882A true CN111372882A (en) | 2020-07-03 |
Family
ID=66631873
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201780096959.1A Pending CN111372882A (en) | 2017-11-24 | 2017-11-24 | Mounting device for elevator compensating ropes |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN111372882A (en) |
| WO (1) | WO2019102589A1 (en) |
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Also Published As
| Publication number | Publication date |
|---|---|
| WO2019102589A1 (en) | 2019-05-31 |
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Application publication date: 20200703 |