TWI649251B - Lifting and loading method of elevator balance weight - Google Patents

Abstract

The object of the present invention is to obtain an elevator counterweight lifting and unloading method, which can improve the work efficiency of moving an existing counterweight from an elevator to a boarding place.

The lift balance weight lifting and unloading method of the present invention includes: a step setting step, which sets the step 12 in the pit 101; and a balance weight support step, which uses a chain type supported by the balance weight guide device 102 The crane 22 supports the counterweight 103; the counterweight lowering step is carried out after the step of setting the counterweight and the step of supporting the counterweight, and then the first end portion of the counterweight 103 is loaded on the first vehicle installed on the stepper 12. In the state of 31A, while the balance weight 103 is lowered by the driving of the chain crane 22, the first vehicle 31A is moved toward the riding place 104, so that the position of the balance weight 103 is shifted from the upright position to the dumping position; And a balance weight unloading step, which moves the first car 31A to the boarding place 104 after the balance weight lowering step, and then moves the balance weight 103 out of the hoistway 100 to the boarding place 104.

Description

How to move in and out of elevator counterweight

The present invention relates to a method for moving in and out of an elevator (elevator) counterweight with a counterweight.

In the past, there is known a method for lifting in and out an elevator counterweight, which includes a step of suspending an existing counterweight to a pit of the elevator using a lifting device supported by the elevator; A step of disassembling the suspended balance weight in the pit; and a step of removing the disassembled balance weight from the pit to the boarding place (for example, refer to Patent Document 1).

[Previous Technical Literature]

[Patent Literature]

Patent Document 1: Japanese Unexamined Patent Publication No. 11-349255

However, since the prior art includes a step of disassembling a counterweight that has been suspended and dropped into the pit, and a step of removing the disassembled counterweight from the pit to the boarding point, So there will be The problem of poor work efficiency when the existing counterweight is moved from the hoistway to the boarding place.

The invention provides an elevator counterweight lifting and unloading method which can improve the working efficiency of lifting an existing counterweight from an elevator to a boarding place.

The method for moving in and out of an elevator counterweight of the present invention includes: a step for setting a step, which sets a step adjacent to the boarding place in the pit of the lifting path; a step for supporting the counterweight, whose use is fixed by The lifting device supported by the fixed member supports the balance weight; the balance weight lowering step includes, after the step setting step and the balance weight support step, the first end portion which is the lower end portion of the balance weight is loaded on the In the state of the first vehicle installed on the step platform, while the counterweight is lowered by the driving of the lifting device, the first vehicle is moved toward the riding place to shift the position of the counterweight from the upright position to the dumping position. And a balance weight carrying-out step, after the balance weight lowering step, moving the first vehicle to the boarding point to remove the balance weight from the hoistway to the boarding point.

According to the method of loading and unloading an elevator counterweight according to the present invention, since a first vehicle is installed on a stepped platform installed in a pit, the first vehicle is loaded with the counterweight, and the counterweight is carried out from the hoistway to the boarding place. Therefore, it is possible to improve the operation efficiency of moving the existing counterweight from the hoistway to the boarding place.

1‧‧‧Stepping device

2‧‧‧ Suspension device

3‧‧‧ trolley unit

11‧‧‧ support

12‧‧‧step

13‧‧‧ Reinforcing member

21‧‧‧Steel rope

22‧‧‧ Chain Crane (Lifting Device)

23‧‧‧Steel rope

31A, 31B‧‧‧The first car

32A, 32B‧‧‧The second car

100‧‧‧ Lifting Road

101‧‧‧Pit

102‧‧‧ Guide rail device for counterweight (fixed member)

103‧‧‧ counterweight

104‧‧‧boarding place

105‧‧‧rail

106‧‧‧ track bracket

107‧‧‧ counterweight frame

108‧‧‧ weight plate

221‧‧‧ Hook

222‧‧‧ Hook

311‧‧‧ trolley body

312‧‧‧ support

313‧‧‧Rotating shaft

314‧‧‧Receiving part for the first end

315‧‧‧ sidewall

316‧‧‧ lower wall

317‧‧‧long hole (hole)

318‧‧‧bearing

319‧‧‧Rotating shaft

321‧‧‧ trolley body

322‧‧‧ 2nd end receiving part

323‧‧‧ sidewall

324‧‧‧upper wall

325‧‧‧ long hole (hole)

326‧‧‧bearing

327‧‧‧Rotating shaft

Fig. 1 is a front view showing an elevator counterweight loading / unloading device according to a first embodiment of the present invention.

Fig. 2 is a side view showing the elevator counterweight loading / unloading device of Fig. 1;

FIG. 3 is a side view showing a state in which the counterweight is carried out from the hoistway to the boarding point using the trolley unit of FIG. 1.

FIG. 4 is a front view of the first vehicle in FIG. 3.

Fig. 5 is a side view showing the first trolley of Fig. 4;

FIG. 6 is a plan view showing the first vehicle in FIG. 4.

Fig. 7 is a front view showing the second trolley of Fig. 3.

Fig. 8 is a side view showing the second trolley of Fig. 7.

Fig. 9 is a plan view showing the second trolley of Fig. 7.

Fig. 10 is a side view showing a state in which the first vehicle of Fig. 1 is moved toward the boarding place.

FIG. 11 is a side view showing a state in which the first vehicle in FIG. 10 is moved further toward the boarding place.

Fig. 12 is a side view showing a state in which a second vehicle is arranged on the step of Fig. 11.

FIG. 13 is a side view showing a state where the suspension device is removed from the counterweight of FIG. 12.

Fig. 14 is a front view showing a first car of an elevator counterweight loading / unloading device according to a second embodiment of the present invention.

Fig. 15 is a side view showing the first trolley of Fig. 14;

Fig. 16 is a plan view showing the first trolley of Fig. 14.

Fig. 17 is a front view showing a second car of an elevator counterweight loading / unloading device according to Embodiment 2 of the present invention.

Fig. 18 is a side view showing the second carriage of Fig. 17;

Fig. 19 is a plan view showing the second trolley of Fig. 17.

[Embodiment 1]

Fig. 1 is a front view showing an elevator counterweight loading / unloading device according to a first embodiment of the present invention. Fig. 2 is a side view showing the elevator counterweight loading / unloading device of Fig. 1; In the figure, an elevator counterweight loading and unloading device includes: a stepping device 1 installed in the pit 101 of the hoistway 100; and a suspension device 2 including a counterweight guide rail fixed to the hoistway 100 ( A guide rail (fixing member) 102 is used to suspend the counterweight 103; and a trolley unit 3 is provided for loading the counterweight 103.

The step device 1 includes: a plurality of support members 11 capable of being retracted toward the height direction of the lifting path 100; and a step platform 12 supported by the support member 11 in a depth direction of the riding place 104 and opposite to the riding place 104. Adjacent; and a reinforcing member 13 which is erected across the adjacent support 11.

The counterweight guide rail device 102 includes a pair of guide rails 105 extending in the height direction, and a plurality of rail brackets 106 provided on each of the guide rails 105 and fixed to the lift path 100. The rail brackets 106 are arranged separately in the height direction.

The counterweight 103 includes a counterweight frame 107 extending in the height direction, and a plurality of counterweight plates 108 supported by the counterweight frame 107. The weight plate 108 is arranged to overlap in the height direction.

A guide shoe (not shown) is provided at both ends in the width direction of the second end portion that is the upper end portion of the counterweight frame 107. A groove (not shown) is formed in the guide shoe system to extend in the height direction into which the guide rail 105 can be inserted. Bolt holes (not shown) through which bolts (not shown) can be inserted are formed at both ends in the width direction of the second end portion of the counterweight frame 107. The guide shoe is fixed to the second end portion of the counterweight frame 107 by inserting a bolt into the bolt hole.

Guide shoes (not shown) are provided at both ends in the width direction of the first end portion which is the lower end portion of the counterweight frame 107. A groove (not shown) is formed in the guide shoe system to extend in the height direction into which the guide rail 105 can be inserted. Bolt holes (not shown) for inserting bolts (not shown) are formed at both ends in the width direction of the first end portion of the counterweight frame 107. The guide shoe is fixed to the first end portion of the counterweight frame 107 by inserting a bolt into the bolt hole.

The suspension device 2 has: a wire 21 that is erected across a pair of guide rails 105; a chain block (lifting device) 22 that is supported by the wire 21; and a wire 23, It links the chain crane 22 and the counterweight frame 107. In addition, in FIG. 2, the steel cable 21, the chain crane 22, and the steel cable 23 are omitted.

The chain crane 22 is provided with an upper end and is suspended A hook portion 221 of the steel cable 21. By hanging the hook portion 221 on the steel cable 21, the chain crane 22 is supported by the steel cable 21. In addition, the chain crane 22 includes a hook portion 222 provided at a lower end portion and capable of hanging the steel cable 23. The wire rope 23 is supported by the chain crane 22 by hanging the wire rope 23 on the hook portion 222. The hook portion 222 is driven by the chain crane 22 to move in the vertical direction. By moving the hook portion 22 in the vertical direction, the steel cable 23 is moved in the vertical direction.

FIG. 3 is a side view showing a state where the counterweight 103 is carried out from the hoistway 100 to the boarding place 104 using the trolley unit 3 of FIG. 1. The trolley unit 3 includes a first trolley 31A that supports the first end portion of the counterweight 103 and a second trolley 32A that supports the second end portion of the counterweight 103.

FIG. 4 is a front view of the first cart 31A of FIG. 3, FIG. 5 is a side view of the first cart 31A of FIG. 4, and FIG. 6 is a plan view of the first cart 31A of FIG. 4. The first trolley 31A includes a trolley body portion 311 including a plurality of rollers, a pair of support portions 312 supported by the trolley body portion 311, and a rotating shaft 313 extending in the width direction of the counterweight 103. And the first end receiving portion 314 is supported by the supporting portion 312 so as to be able to rotate around the rotation shaft 313 as a center, and receives the first end portion of the counterweight 103 .

Each support part 312 is fixed to the trolley body part 311 using a bolt.

The first end receiving portion 314 includes a pair of side wall portions. 315 is disposed on the outer side in the width direction of the first end portion of the counterweight 103; and the lower wall portion 316 is opposed to the lower surface of the first end portion of the counterweight 103. The lower wall portion 316 is formed with a pair of long holes (holes) 317 through which bolts for attaching the guide shoe to the first end portion can be inserted. The first end portion of the counterweight frame 107 is fixed to the support portion 312 by inserting a bolt into the long hole 317.

FIG. 7 is a front view of the second trolley 32A of FIG. 3, FIG. 8 is a side view of the second trolley 32A of FIG. 7, and FIG. 9 is a plan view of the second trolley 32A of FIG. The second trolley 32A includes a trolley body portion 321 including a plurality of rollers, and a pair of second end receiving portions 322 supported by the trolley body portion 321.

The second end receiving portion 322 is fixed to the trolley body portion 321 using bolts. The second end receiving portion 322 includes a pair of side wall portions 323 disposed on the widthwise outer side of the second end portion of the counterweight 103, and a pair of upper wall portions 324 integrally formed on the side wall portion 323. And opposite to the upper surface of the second end portion of the counterweight 103. Each of the upper wall portions 324 is formed with an elongated hole (hole) 325 through which a bolt for attaching the guide shoe to the second end portion can be inserted. The second end portion of the counterweight frame 107 is fixed to the second end receiving portion 322 by inserting a bolt into the long hole 325.

Next, a method for loading and unloading an elevator counterweight using an elevator counterweight loading and unloading device will be described. First, as shown in FIG. 1, the lifting chamber (not shown) is arranged on the lift so that the counterweight 103 is arranged at a predetermined distance higher than the riding place 104 on the bottom floor. An upper part of the lowering path 100 is used to fix the elevating chamber to a guide device for the elevating chamber (not shown) using a fixing device (not shown). The guide rail device for an elevating room is fixed to a wall portion of the elevating path 100.

After that, the step 12 is arranged in the pit 101 of the lift path 100 adjacent to the boarding place 104 (step setting step).

After that, the chain crane 22 is supported by the guide rail 105, the balance weight 103 is supported using the chain crane 22 (balance weight support step), and the chain crane 22 is driven to lift the balance weight 103 slightly upward. At this time, the weight plate 108 may be removed from the balance weight frame 107.

After that, the rope connected to the lifting chamber and the counterweight 103 is detached from the lifting chamber and the counterweight 103, and the guide shoe attached to the first end portion of the counterweight 103 is removed, and as As shown in FIG. 1, a first end portion of the counterweight 103 is mounted on a first carriage 31A provided on the step platform 12, and a bolt and a bolt for fixing the guide shoe to the first end portion of the counterweight 103 are used A nut fixes the counterweight 103 to the receiving part 314 for the 1st end part of the 1st trolley 31A. At this time, the bolt is inserted into the long hole 317 of the first end receiving portion 314.

FIG. 10 is a side view showing a state where the first vehicle 31A of FIG. 1 is moved toward the boarding place 104. After that, the guide shoe attached to the second end portion of the counterweight 103 is removed, and the first end portion of the counterweight 103 is mounted on the first vehicle 31A, while the chain crane 22 is used. The driving of the balance weight 103 lowers the first vehicle 31A toward the riding place 104, so that the position of the balance weight 103 is shifted from the upright position to the tipping position (the balance weight lowering step). Here, the so-called erection The position refers to the position of the counterweight 103 when the counterweight 103 extends in the height direction, and the so-called dumping position means that the dimension in the height direction of the counterweight 103 becomes greater than the height direction of the entrance and exit of the boarding place. A smaller size means that the position of the counterweight 103 in a case where the long side direction of the counterweight 103 extends toward a direction crossing with respect to the height direction, and means that the counterweight 103 is carried out from the hoistway 100 to the boarding Position of counterweight 103 at 104 o'clock. In this example, the dumping position refers to the position of the balance weight 103 when the balance weight 103 extends in the horizontal direction.

FIG. 11 is a side view showing a state where the first cart 31A of FIG. 10 is moved further toward the boarding place. As the position of the counterweight 103 is shifted from the upright position to the tipping position, the first end receiving portion 314 of the first carriage 31A will rotate with the rotation shaft 313 as the center with respect to the carriage body portion 311.

FIG. 12 is a side view showing a state where a second vehicle 32A is arranged on the step platform 12 in FIG. 11. Then, when the position of the counterweight 103 becomes the dumping position, the second trolley 32A is mounted on the tread 12 and the second end portion of the counterweight 103 is mounted on the second trolley 32A, and is used to fix the guide shoe Bolts and nuts used at the second end portion of the balance weight 103 are used to fix the balance weight 103 to the second end receiving portion 322 of the second trolley 32A. At this time, the bolt is inserted into the long hole 325 of the second end receiving portion 322.

FIG. 13 is a side view showing a state where the suspension device 2 is removed from the counterweight 103 of FIG. 12. After that, by making the first car The 31A and the second trolley 32A are moved to the boarding point 104 and the counterweight 103 is carried out from the hoistway 100 to the boarding point 104 (step for removing the counterweight). With this, the unloading of the counterweight 103 from the hoistway 100 toward the boarding place 104 is completed. The introduction of the new counterweight 103 from the boarding point 104 toward the lift path 100 is the reverse order of the existing counterweight 103.

As described above, according to the first embodiment of the present invention, the method of loading and unloading an elevator counterweight includes a step setting step, which includes a step 12 adjacent to the boarding place 104 in the pit 101 of the lifting path 100 ; A counterweight supporting step, which uses a chain crane 22 supported by a counterweight guide rail device 102 fixed to the hoistway 100 to support the counterweight 103; a counterweight lowering step, which includes the step of setting the counterweight and balancing After the weight supporting step, in a state where the first end portion of the balance weight 103 is mounted on the first carriage 31A provided on the step 12, the balance weight 103 is lowered by the driving of the chain crane 22 Moving the first vehicle 31A toward the boarding place 104 so that the position of the counterweight 103 is shifted from the upright position to the dumping position; and the counterweight lifting out step, after the counterweight lowering step, by moving the first vehicle 31A moves to the boarding place 104 and moves the counterweight 103 out of the hoistway 100 to the boarding place 104; therefore, the operation efficiency of moving the existing counterweight 103 from the hoisting road 100 to the boarding place 104 can be improved.

In addition, in the step of lowering the counterweight, the first end receiving portion 314 is rotated around the rotation shaft 313 as the position of the counterweight 103 is shifted from the upright position to the tipping position. Maintaining the balance weight 103 mounted on the first end receiving portion 314 In the state, the position of the balance weight 103 can be easily changed from the upright position to the dumped position.

In the step of lowering the counterweight, the bolt is inserted into the long hole 317 and the nut is mounted on the bolt, thereby fixing the first end portion and the first end receiving portion 314 of the counterweight 103. Therefore, the existing weights and nuts can be used to securely fix the balance weight 103 and the first end receiving portion 314.

In the balance weight lowering step, the second end portion of the balance weight 103 is supported on the second carriage 32A, and in the balance weight removal step, the first carriage 31A and the second carriage 32A are moved. Since the balance weight 103 is carried out from the hoistway 100 to the boarding place 104, the balance weight 103 can be stably carried out from the hoistway 100 to the boarding place 104.

In the step of lowering the counterweight, the bolt is inserted into the long hole 325 and the nut is attached to the bolt, thereby fixing the second end portion and the second end receiving portion 322 of the counterweight 103. Therefore, the existing weights and nuts can be used to securely fix the balance weight 103 and the second end receiving portion 322.

[Embodiment 2]

FIG. 14 is a front view showing the first carriage 31B of the elevator counterweight loading and unloading device according to Embodiment 2 of the present invention, FIG. 15 is a side view showing the first carriage 31B of FIG. 14 and FIG. 16 is a side view A top view of the first trolley 31B of FIG. 14 is shown. The first trolley 31B has: trolley body A portion 311 includes a plurality of rollers; a bearing 318 is provided on the upper portion of the trolley body portion 311; a rotating shaft 319 is provided extending from the trolley body portion 311 in a height direction, and can be opposed to the trolley body portion through the bearing 318 311 rotates; a support portion 312 supported by a rotation shaft 319 with the rotation shaft 319 as a center; a rotation shaft 313 extending toward the width direction of the counterweight 103 and supported by the support portion 312; and the first The end receiving portion 314 is supported by the support portion 312 so as to be rotatable about the rotation shaft 313 as a center, and receives the first end portion of the balance weight 103.

FIG. 17 is a front view showing a second car 32B of the elevator counterweight loading and unloading device according to Embodiment 2 of the present invention, FIG. 18 is a side view showing the second car 32B of FIG. 17 and FIG. 19 is a view The top view of the 2nd trolley 32B of FIG. 17 is shown. The second trolley 32B includes a trolley body portion 321 including a plurality of rollers, a bearing 326 provided on the upper portion of the trolley body portion 321, and a rotating shaft 327 extending from the trolley body portion 321 toward the height direction and passing through. The bearing 326 is rotatable with respect to the trolley body portion 321, and the second end receiving portion 322 is supported by the rotation shaft 327 and rotates with the rotation shaft 327 as a center. The other structures are the same as those of the first embodiment.

Next, a method for loading and unloading an elevator counterweight using an elevator counterweight loading and unloading device will be described. After the counterweight supporting step, the counterweight 103 is fixed to the first end receiving portion 314 of the first trolley 31B, and one guide shoe attached to the second end portion of the counterweight 103 is removed. In this state, the counterweight 103 is oriented wide Swing in the direction of direction, or make the balance weight 103 rotate around the rotating shaft 319 as the center, thereby releasing the engagement between the other guide shoe mounted on the second end portion of the balance weight 103 and the guide rail 105 (the guide shoe card Closing steps). The method of loading and unloading other elevator counterweights is the same as that of the first embodiment.

As described above, according to Embodiment 2 of the present invention, the method of loading and unloading an elevator counterweight is provided with the other guide for releasing the second end portion mounted on the counterweight 103 after the counterweight supporting step. The step of releasing the engagement of the guide shoe between the boot and the guide rail 105 can be performed with the other guide shoe being mounted on the second end portion of the counterweight 103.

In addition, in each of the above-mentioned embodiments, although the configuration in which the step platform 12 extends below the balance weight 103 in the upright position has been described, the step platform 12 may not extend to the balance weight in the upright position. Structure below 103. In this case, when the first end portion of the balance weight 103 is mounted on the first vehicle, the first end portion of the balance weight 103 is moved to the side of the boarding place 104.

In each of the above-mentioned embodiments, the method of loading and unloading an elevator counterweight that moves the counterweight 103 from the hoistway 100 toward the boarding place 104 using the first and second vehicles has been described, but Instead of using the second car, the elevator car may be moved in and out from the hoistway 100 toward the boarding place 104 using the first car.

Moreover, in each of the above-mentioned embodiments, although the example of the chain crane 22 has been described as the lifting device, it is not limited to the chain crane The machine 22 may be, for example, a hoist.

Claims (5)

An elevator counterweight lifting and unloading method includes: a step setting step, which sets a step adjacent to the boarding place in the pit of the lifting path; a supporting step for the counterweight, which uses a fixing fixed to the lifting path A lifting device supported by a member to support the counterweight; a counterweight lowering step, after the step setting step and the counterweight support step, a first end portion that is a lower end portion of the counterweight is loaded In the state of the first vehicle installed on the step platform, while the balance weight is lowered by the driving of the lifting device, the first vehicle is moved toward the riding place so that the balance weight is in the position. Moving from the upright position to the dumping position; and a counterweight lifting-out step of moving the first trolley to the boarding point after the counterweight-weight lowering step, moving the counterweight from the lifting path to The aforementioned boarding point. The method for moving in and out of an elevator counterweight as described in item 1 of the scope of patent application, wherein the first trolley is provided with: a trolley body portion including a plurality of rollers; a support portion supported by the trolley body portion; And a first end receiving portion, which is supported by the support portion so as to be rotatable about a rotation shaft extending in a width direction of the balance weight, and receives the first end of the balance weight. In the step of lowering the balance weight, the first end receiving portion is rotated around the rotation portion as the balance weight is displaced from the upright position to the dump position. According to the method for loading and unloading an elevator counterweight according to item 2 of the scope of the patent application, a hole through which a bolt can pass is formed at the receiving portion for the first end, and the bolt is used to communicate with the balance weight. Fixing between the first ends of the hammer; in the step of lowering the counterweight, the bolt is inserted into the hole and a nut is installed on the bolt, thereby fixing the first part of the counterweight The end portion and the receiving portion for the first end portion. According to the method for moving in and out of an elevator balance weight as described in any one of claims 1 to 3, in the step of lowering the balance weight, the second end is supported on the second vehicle, The second end portion is an end portion farther from the riding place than the first end portion of the balancing weight in the tipping position in the depth direction of the riding place; By moving the first car and the second car to the boarding place, the counterweight is removed from the hoistway to the boarding place. The method for carrying out and loading an elevator counterweight as described in item 4 of the scope of patent application, wherein the second trolley is provided with: a trolley body portion including a plurality of rollers; and a second end receiving portion formed by the foregoing The second end portion of the counterweight is supported by the trolley body portion. A hole is provided at the second end receiving portion for a bolt to pass through. The bolt is used to communicate with the counterweight. Fixing between the aforementioned second ends; in the aforementioned step of lowering the counterweight, the aforementioned bolt is inserted into the aforementioned hole, and a nut is mounted on the aforementioned bolt, thereby fixing the aforementioned second end of the counterweight And the receiving portion for the second end portion.