Lifting device for maintenance of wind turbine generator
By using the combination of rollers and angle rotation devices in the maintenance and lifting device of the wind turbine unit, the lift shaking problem is solved, stable movement is achieved, and maintenance efficiency and safety are improved.
Patent Information
- Application Number
- CN202421062837.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-05-15
- Publication Date
- 2024-12-17
- Estimated Expiration
- Not applicable · inactive patent
AI Technical Summary
The wind turbine maintenance elevator is prone to shake during movement, causing it to fall off the rails, affecting safety and efficiency.
A wind turbine maintenance and lifting device is designed, using a combination of rollers and angle rotation devices, which bonds the inner wall of the tower through rollers and adjusts the angle when touching the projection. The lift is maintained by using the matching of torsion springs and springs. stable movement.
It effectively reduces the shaking range of the elevator during movement, ensures the stability and safety of the elevator, and improves maintenance efficiency.
Smart Images
Figure CN222181741U_ABST
Abstract
Description
Technical Field
[0001] The utility model belongs to the technical field related to a wind turbine maintenance lifting device, and in particular relates to a wind turbine maintenance lifting device. Background Art
[0002] Wind turbine maintenance lifting device is a lifting equipment specially designed for wind turbine maintenance. It is usually installed inside or outside the tower of the wind turbine and is used to quickly and safely transport maintenance personnel to various parts of the wind turbine for maintenance and overhaul. Wind turbine maintenance lifting device is usually composed of electric motors, wire ropes, lifting platforms, guide rails and control systems, etc. It can improve maintenance efficiency and reduce the risks of maintenance personnel. This equipment is widely used in the wind power industry and is an important auxiliary equipment in wind turbine maintenance work.
[0003] When the elevator is moving up and down, if the elevator shakes during the movement, the elevator will fall off the guide rail, so the market needs a new device to solve the current problem. Utility Model Content
[0004] The purpose of the utility model is to provide a wind turbine maintenance lifting device to solve the problem that when the lift proposed in the above background technology moves up and down, if the lift shakes during the movement, the lift will fall off the guide rail. Therefore, the market needs a new device to solve the current problem.
[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a wind turbine maintenance lifting device, comprising a lift, the lift moves up and down along a guide rail installed at the rear end position, the upper end of the guide rail is installed with a winding wheel at the left position, the lower end of the winding wheel is provided with a wire rope, the upper end of the guide rail is provided with a driving motor at the right position, the upper end of the lift is provided with an electric motor, the front end of the lift is provided with a box door, the left and right ends of the lift are fixed with fixed columns, and the fixed A spring A is fixed at the inner position of the column, a sleeve column is fixed at the other end position of the spring A, an angle rotation device is installed at the other side position of the sleeve column, the sleeve column is installed with the angle rotation device through the rotating shaft A at the left and right end positions, a torsion spring is sleeved at the outer position of the rotating shaft A, a roller is sleeved at the inner position of the angle rotation device, the roller is installed with the angle rotation device through the rotating shaft B at the left and right end positions, a spring B is arranged at the inner position of the angle rotation device, and the roller is in contact with the tower.
[0006] Preferably, the winding wheel enables the elevator to move through a steel wire rope, and the driving motor drives the winding wheel to work.
[0007] Preferably, the elevator moves up and down along the guide rail, and the elevator moves at an internal position of the tower.
[0008] Preferably, when the box door is in an open state, the staff can enter the inner position of the elevator, and the elevator drives the staff to a designated working position.
[0009] Preferably, during the movement of the elevator, the roller moves in contact with the inner wall of the tower, and the roller and the rotating shaft B rotate at the inner side of the angle rotating device.
[0010] Preferably, when the roller is squeezed, the spring B contracts, and an angle change can be generated between the angle rotating device and the sleeve column.
[0011] Preferably, the angle rotating device rotates with the rotation axis A as the central axis when the angle change occurs, and the angle rotating device is reset by a torsion spring during the rotation.
[0012] Preferably, the sleeve column can be extended and retracted at the internal position of the fixed column through the spring A.
[0013] Compared with the prior art, the utility model provides a wind turbine maintenance lifting device, which has the following beneficial effects:
[0014] This device is equipped with rollers at the left and right ends of the elevator. When the elevator moves, the rollers move in contact with the inner wall of the tower. When the rollers hit protrusions during movement, the rollers move in the angle rotation device. At the same time, angle adjustment can be generated between the angle rotation device and the sleeve column. When the angle changes, compression force is applied to the torsion spring. The torsion spring releases the compression force, causing the rollers to move in contact with the inner wall of the tower. In this way, the elevator can remain stable during movement, thereby reducing the amplitude of shaking. BRIEF DESCRIPTION OF THE DRAWINGS
[0015] Figure 1 The utility model is a schematic diagram of the structure of a wind turbine maintenance lifting device.
[0016] Figure 2 The utility model is a schematic diagram of the internal structure of a fixed column of a wind turbine maintenance lifting device.
[0017] Figure 3 The utility model is a schematic diagram of the internal structure of a sleeve column of a wind turbine maintenance lifting device.
[0018] Figure 4The utility model is a schematic diagram of the internal structure of an angle rotating device of a wind turbine maintenance lifting device.
[0019] In the figure: 1. elevator; 2. electric motor; 3. wire rope; 4. winding wheel; 5. driving motor; 6. guide rail; 7. tower; 8. box door; 9. angle rotation device; 10. fixed column; 11. sleeve column; 12. roller; 13. spring A; 14. rotating shaft A; 15. torsion spring; 16. rotating shaft B; 17. spring B. DETAILED DESCRIPTION
[0020] The technical solutions in the embodiments of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the utility model.
[0021] The utility model provides Figure 1-4 A wind turbine maintenance lifting device shown in the figure includes a lift 1, which moves up and down along a guide rail 6 installed at the rear end position, a reel 4 is installed at the upper end of the guide rail 6 at the left position, a wire rope 3 is arranged at the lower end position of the reel 4, a drive motor 5 is arranged at the upper end of the guide rail 6 at the right position, a motor 2 is arranged at the upper end position of the lift 1, a box door 8 is arranged at the front end position of the lift 1, fixed columns 10 are fixed at the left and right end positions of the lift 1, and a spring A13 is fixed at the internal position of the fixed column 10. A sleeve column 11 is fixed to the other end of the spring A13, and an angle rotation device 9 is installed at the other side of the sleeve column 11. The sleeve column 11 is installed with the angle rotation device 9 through the rotating shaft A14 at the left and right end positions. A torsion spring 15 is sleeved at the outer position of the rotating shaft A14, and a roller 12 is sleeved at the inner position of the angle rotation device 9. The roller 12 is installed with the angle rotation device 9 through the rotating shaft B16 at the left and right end positions. A spring B17 is arranged at the internal position of the angle rotation device 9, and the roller 12 is fitted with the tower 7.
[0022] When the staff performs maintenance on the wind turbine, they first enter the inner position of the tower 7, open the box door 8 and enter the inner position of the elevator 1, press the control system inside the elevator 1 to make the pulley 4 work, and the pulley 4 pulls the elevator 1 along the guide rail 6 through the wire rope 3. After reaching the specified height, the elevator 1 stops moving, and the staff can open the box door 8 to perform maintenance on the wind turbine.
[0023] like Figure 2 and Figure 3As shown, the winding wheel 4 enables the elevator 1 to move through the wire rope 3, and the driving motor 5 drives the winding wheel 4 to work. The elevator 1 moves up and down along the guide rail 6, and the elevator 1 moves at the internal position of the tower 7. When the box door 8 is in the open state, the staff can enter the internal position of the elevator 1. The elevator 1 drives the staff to the designated working position. During the movement of the elevator 1, the roller 12 moves in contact with the inner wall position of the tower 7, and the roller 12 and the rotating shaft B16 rotate at the inner side position of the angle rotating device 9. The roller 12 is squeezed to cause the spring B17 to contract, and an angle change can be generated between the angle rotating device 9 and the sleeve column 11. The angle rotating device 9 rotates with the rotating shaft A14 as the center axis when the angle change occurs. The angle rotating device 9 is reset by the torsion spring 15 during rotation, and the sleeve column 11 can be extended and retracted at the internal position of the fixed column 10 through the spring A13.
[0024] During the movement of the elevator 1, the roller 12 moves in contact with the inner wall of the tower 7. During the movement, the roller 12 hits a protrusion, causing the roller 12 to move in the angle rotation device 9. At the same time, angle adjustment can be generated between the angle rotation device 9 and the socket column 11. When the angle changes, compression force is applied to the torsion spring 15. The torsion spring 15 releases the compression force, causing the roller 12 to move in contact with the inner wall of the tower 7. In this way, the elevator 1 can remain stable during the movement.
[0025] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.
Claims
1. A wind turbine maintenance lifting device, characterized in that: The invention comprises an elevator (1), wherein the elevator (1) moves up and down along a guide rail (6) installed at a rear end position, a reel (4) is installed at the upper end of the guide rail (6) at a left position, a wire rope (3) is arranged at the lower end position of the reel (4), a drive motor (5) is arranged at the upper end of the guide rail (6) at a right position, an electric motor (2) is arranged at the upper end position of the elevator (1), a box door (8) is arranged at the front end position of the elevator (1), fixed columns (10) are fixed at the left and right end positions of the elevator (1), a spring A (13) is fixed at the inner position of the fixed column (10), and the spring A (13) A sleeve column (11) is fixed at the other end position, and an angle rotation device (9) is installed at the other side position of the sleeve column (11). The sleeve column (11) is installed with the angle rotation device (9) through a rotation axis A (14) at the left and right end positions. A torsion spring (15) is sleeved at the outer position of the rotation axis A (14). A roller (12) is sleeved at the inner position of the angle rotation device (9). The roller (12) is installed with the angle rotation device (9) through a rotation axis B (16) at the left and right end positions. A spring B (17) is provided at the inner position of the angle rotation device (9). The roller (12) is fitted with the tower (7).
2. A wind turbine maintenance lifting device according to claim 1, characterized in that: The winding wheel (4) enables the elevator (1) to move via the steel wire rope (3), and the driving motor (5) drives the winding wheel (4) to work.
3. A wind turbine maintenance lifting device according to claim 2, characterized in that: The elevator (1) moves up and down along the guide rail (6), and the elevator (1) moves at an internal position of the tower (7).
4. A wind turbine maintenance lifting device according to claim 3, characterized in that: When the box door (8) is in an open state, the staff can enter the inner position of the elevator (1), and the elevator (1) drives the staff to a designated working position.
5. A wind turbine maintenance lifting device according to claim 3, characterized in that: During the movement of the elevator (1), the roller (12) moves in contact with the inner wall of the tower (7), and the roller (12) and the rotating shaft B (16) rotate at the inner side of the angle rotating device (9).
6. A wind turbine maintenance lifting device according to claim 5, characterized in that: When the roller (12) is squeezed, the spring B (17) contracts, and an angle change can be generated between the angle rotating device (9) and the sleeve column (11).
7. A wind turbine maintenance lifting device according to claim 6, characterized in that: The angle rotating device (9) rotates with the rotating axis A (14) as the central axis when an angle change occurs, and the angle rotating device (9) is reset by a torsion spring (15) when rotating.
8. A wind turbine maintenance lifting device according to claim 1, characterized in that: The sleeve column (11) can be extended and retracted at an inner position of the fixed column (10) via a spring A (13).