A device for cutting traction steel wire rope in an elevator machine room
By using a lifting device and a rope clamping plate in the elevator machine room to adjust the height of the traction steel wire rope, the problem of multi-point coordination in the existing technology is solved, and safe and efficient traction steel wire rope cutting is achieved.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- HITACHI ELEVATOR CHINA
- Filing Date
- 2025-07-23
- Publication Date
- 2026-07-17
AI Technical Summary
Existing elevator traction wire rope cutting technology requires multiple work points to coordinate, which is not very safe and can easily cause damage to the wire rope.
Using lifting devices and rope clamps in the elevator machine room, the height of the rope head assembly is adjusted by the lifting device, and the rope clamps are used to clamp the traction steel wire rope, achieving single-point cutting, reducing the need for coordination and improving safety.
This technology enables safe and efficient cutting of traction steel wire ropes within the elevator machine room, reducing the need for coordination between work points and improving both work efficiency and safety.
Smart Images
Figure CN224512965U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to an elevator traction steel wire rope adjustment device, and more particularly to a rope cutting device. Background Technology
[0002] There are two common methods for cutting the traction steel wire rope of a machine room elevator. For example... Figure 1 As shown, one method involves suspending a wire rope on the machine beam 10 or rope head seat above the rope head hole on the side of the car, with the upper end of the hoist 12 hooked onto the wire rope. Wire ropes are suspended on both sides of the crossbeam on the car top, hooked onto the lower end of the hoist 12; the hoist 12 is tightened to lift the car 13, while the counterweight 14 is lowered until it hits a long wooden stake or long iron pipe pre-set in the pit; the wire rope and rope head are then slack; the rope is cut and reinstalled. This method requires personnel to be stationed in the machine room, on the car top, and in the pit, demanding high coordination among the three work points; also, the wire rope is prone to slipping out of the rope groove after slack, and after cutting, it must be checked that each wire rope has fallen back into the corresponding rope groove of each rope pulley, otherwise, the wire rope will be damaged; furthermore, the safety of pit and car top operations is not as good as machine room operations. Figure 2 As shown, another method involves suspending a hanging component (such as a steel wire rope) 2 from the machine beam 10 or rope head seat above the rope head hole on the car side, and hooking it onto the upper end of the hoist 12. The traction steel wire rope 7 is clamped with a rope clamping plate 3 above the car top, and the rope clamping plate 3 is hooked onto the lower end of the hoist 12; the hoist 12 is tightened to lift the car 13; the traction steel wire rope 7 between the rope head assembly 5 and the rope clamping plate 3 is loosened; the ropes are cut one by one at height A, and then the original rope heads are disassembled. Components installed on the original rope heads, such as the rope head wedge sleeve 15 and the rope head spring (or rope head rubber) 16, are installed on the new rope heads. The new rope heads are then installed in the positions of the original rope heads to form a new rope head assembly, and then everything is reset. This method requires personnel to be stationed in both the machine room and on the car top, requiring high coordination between the two work points; furthermore, the safety of operations on the car top is not as good as operations in the machine room. Utility Model Content
[0003] The purpose of this invention is to provide a device for cutting traction steel wire rope in an elevator machine room, so as to solve the problem that the existing rope cutting technology is not safe enough.
[0004] To achieve the above objectives, the present invention adopts the following technical solution:
[0005] A device for cutting traction steel wire rope in an elevator machine room includes a lifting device, a hanging component, and a rope clamping plate, all installed in the machine room.
[0006] The upper end of the suspension component is connected to the lower end of the lifting device, and the lower end of the suspension component lifts the car-side rope head assembly and car-side rope head plate, which are separated from the rope head channel steel.
[0007] The rope clamping plate clamps the traction steel wire rope on the side of the rope head assembly near the car side and can be detachably installed on the rope head channel steel.
[0008] By adjusting the height of the car-side rope head assembly and the car-side rope head plate from the clamping plate using the lifting device, the traction wire rope above the clamping plate is slack, and then the traction wire rope can be cut.
[0009] Furthermore, the lifting device is a support frame and hoist fixed on the machine room floor or the machine frame beam, or a U-shaped hook and hoist fixed on the machine room ceiling, or a small crane located inside the machine room.
[0010] Furthermore, the suspension component is a wire rope, sling, or strap.
[0011] Furthermore, the lower end of the suspension component is connected to the car side rope head plate, and the car side rope head assembly is located on the car side rope head plate 6.
[0012] Furthermore, the rope clamping plate is detachably mounted on the rope end channel steel via clamps.
[0013] The advantages of this utility model are:
[0014] In the elevator machine room, the rope head assembly and rope head plate are lifted as a whole to the required height for rope cutting using a hoisting device. The traction steel wire rope is then clamped together using a rope clamping plate. By adjusting the distance between the rope head plate and the rope clamping plate using the hoisting device, the traction steel wire rope can be slackened, allowing rope cutting to be carried out in the machine room. Only one work point is retained in the machine room, making machine room operations safer than those on the car top or in the pit. This avoids the need for high coordination between different work points at different levels, reduces manpower, and improves work efficiency and safety. Attached Figure Description
[0015] The accompanying drawings, which are included to provide a further understanding of the present invention and form part of this application, do not constitute an undue limitation of the present invention. In the drawings:
[0016] Figure 1 This is a structural schematic diagram of a rope-cutting method in the background art.
[0017] Figure 2 This is a structural diagram of another rope-cutting method in the background art.
[0018] Figure 3 This is a schematic diagram of the structure of this utility model.
[0019] 1. Lifting device; 11. U-shaped hook; 12. Hoist; 2. Hanging component; 3. Rope clamping plate; 4. Rope head channel steel; 5. Car side rope head assembly; 6. Car side rope head plate; 7. Traction wire rope; 8. Machine room floor; 9. Clamping weight; 10. Machine beam; 13. Car; 14. Counterweight; 15. Rope head wedge sleeve; 16. Rope head spring (or rope head rubber). Detailed Implementation
[0020] The present invention will now be described in detail with reference to the accompanying drawings and specific embodiments. The illustrative embodiments and descriptions of the present invention are used to explain the present invention, but are not intended to limit the present invention.
[0021] like Figure 3 As shown, a device for cutting traction steel wire rope in an elevator machine room includes a lifting device 1, a hanging component 2, and a rope clamping plate 3, all installed in the machine room.
[0022] The upper end of the suspension component 2 is connected to the lower end of the lifting device 1, and the lower end of the suspension component 2 lifts the car-side rope head assembly 5 and the car-side rope head plate 6, which are separated from the rope head channel steel 4.
[0023] The rope clamping plate 3 clamps the traction steel wire rope 7 on one side of the rope head assembly 5 near the car side, and is detachably installed on the rope head channel steel 4.
[0024] By adjusting the height of the car side rope head assembly 5 and the car side rope head plate 6 from the rope clamping plate 3 using the lifting device 1, the traction steel wire rope 7 above the rope clamping plate 3 is slack, and then the traction steel wire rope 7 can be cut.
[0025] The lifting device 1 consists of a U-shaped hook 11 and a hoist 12 fixed to the top of the machine room.
[0026] In some embodiments, the lifting device is a support frame and hoist fixed to the machine room floor 8 or the machine frame beam 10.
[0027] In some embodiments, the lifting device is a small crane located in the machine room.
[0028] The suspension component 2 is a wire rope, sling, or strap.
[0029] The lower end of the hanging component 2 is connected to the car side rope head plate 6, and the car side rope head assembly 5 is located on the car side rope head plate 6.
[0030] The rope clamping plate 3 is detachably installed on the rope head channel steel 4 via the clamping bracket 9.
[0031] The working process of this utility model is as follows: A lifting device 1 is installed on the top of the machine room, and a hanging component (steel wire rope) 2 is suspended from the rope head plate 6 on the side of the car. The hanging component 2 hooks onto the lower end of the hoist 12. The mounting bolts between the rope head plate 6 on the side of the car and the rope head channel steel 4 are removed, the lifting device 1 is tightened, and the rope head plate 6 on the side of the car is lifted to the required height. The bottom surface of the clamping plate 3 is placed on the rope head channel steel 4, and the traction steel wire rope 7 is clamped with the clamping plate 3. Then, the clamping weight 9 is used to clamp the clamping plate 3 and the rope head channel steel 4. The lifting device 1 is loosened to relax the traction steel wire rope 7 between the rope head assembly 5 and the clamping plate 3. (Reference) Figure 3At the height indicated by point B, cut the ropes one by one, then remove the original rope ends. Install the components installed on the original rope ends, such as the rope end wedge sleeve 15 and the rope end spring (or rope end rubber) 16, onto the new rope ends. Place the new rope ends in the positions of the original rope ends to form a new rope end assembly. Remove the clamp 9, tighten the lifting device 1, and re-lift the car side rope end plate 6; remove the rope clamp 3; loosen the lifting device 1, and reinstall the car side rope end plate 6 onto the rope end channel steel 4.
[0032] The technical solutions provided by the embodiments of this utility model have been described in detail above. Specific examples have been used to illustrate the principles and implementation methods of the embodiments of this utility model. The description of the above embodiments is only for helping to understand the principles of the embodiments of this utility model. At the same time, for those skilled in the art, there will be changes in the specific implementation methods and application scope based on the embodiments of this utility model. Therefore, the content of this specification should not be construed as a limitation of this utility model.
Claims
1. A device for cutting traction steel wire rope in an elevator machine room, characterized in that: This includes lifting devices, hanging parts, and rope clamps installed in the computer room. The upper end of the suspension component is connected to the lower end of the lifting device, and the lower end of the suspension component lifts the car-side rope head assembly and car-side rope head plate, which are separated from the rope head channel steel. The rope clamping plate clamps the traction steel wire rope on the side of the rope head assembly near the car side and can be detachably installed on the rope head channel steel. By adjusting the height of the car-side rope head assembly and the car-side rope head plate from the clamping plate using the lifting device, the traction wire rope above the clamping plate is slack, and then the traction wire rope can be cut.
2. The device for cutting traction steel wire rope in an elevator machine room according to claim 1, characterized in that: The lifting device is a support frame and hoist fixed to the machine room floor or the machine beam, or a U-shaped hook and hoist fixed to the top of the machine room, or a small crane located in the machine room.
3. The device for cutting traction steel wire rope in an elevator machine room according to claim 1 or 2, characterized in that: The suspension components are steel wire ropes, slings, or straps.
4. The device for cutting traction steel wire rope in an elevator machine room according to claim 3, characterized in that: The lower end of the suspension component is connected to the car side rope head plate, and the car side rope head assembly is located on the car side rope head plate (6).
5. The device for cutting traction steel wire rope in an elevator machine room according to claim 1, characterized in that: The rope clamping plate is detachably installed on the rope head channel steel via clamps.