Anti-falling device for operation and maintenance of wind driven generator

Abstract

The utility model relates to the technical field of operation and maintenance falling prevention, and discloses a wind driven generator operation and maintenance falling prevention device which comprises a bottom plate, the side wall of the bottom plate is rotationally connected with a first steel cable wheel, one end of the first steel cable wheel is fixedly connected with a top plate, and a clamping assembly is arranged in the bottom plate; and the clamping assembly comprises a bolt, the outer wall of the bolt is rotationally connected to the interior of the bottom plate, the outer wall of the bolt is rotationally connected to the interior of a first moving block, a handle is rotationally connected to the outer wall of the bolt, and a lantern ring is fixedly connected to the side wall of the first moving block. According to the clamping device, the handle is rotated, the handle is stressed to rotate on the outer wall of the bolt, the handle drives the first moving block, the first moving block drives the hollow block to move, the hollow block enables the second steel cable wheel on the inner wall to be attached to the outer wall of the steel cable, the effect that the clamping force is adjustable is achieved, and the problem that the clamping force cannot be adjusted is solved. Therefore, the falling speeds of people with different weights when using the falling protector are different, and the stability of the operation and maintenance falling protector is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of operation and maintenance anti-falling, in particular to an operation and maintenance anti-falling device for a wind turbine generator. Background Art

[0002] Wind turbines, key devices for converting wind energy into electricity, consist of blades, hubs, generators, and towers. They operate based on the principle of electromagnetic induction and come in various types. They are widely used in power supply, navigation, communications, and other fields. Their renewable, clean, and widespread advantages contribute significantly to sustainable economic development. Wind turbines are often located at high altitudes, with towering towers, requiring operators to frequently climb to inspect and maintain the equipment. This process carries a significant risk of falling from height, and even the slightest carelessness could lead to serious accidents. Therefore, to protect the safety of operators and maintenance personnel, wind turbines must be equipped with fall prevention devices.

[0003] The wind turbine operation and maintenance anti-fall devices in the existing technology usually include multiple key structures. The first is the safety belt, which is made of high-strength and comfortable materials, designed according to ergonomics, and equipped with reliable connecting buckles to ensure a close fit with the human body and a firm connection. The safety rope is made of wear-resistant and tensile-resistant synthetic fibers, the length of which is adapted to the height of the wind turbine, and the surface is non-slip and has scale markings. The fall arrester is the core, based on advanced mechanical braking principles, such as ratchet pawls or centrifugal force sensing devices, which can quickly brake and cushion when falling. The next is the anchor point, which is made of high-strength metal and distributed at appropriate positions on the tower and cabin. It is fixed by a firm connection to provide a reliable fulcrum for the entire anti-fall device. These structures work together to effectively ensure the safety of operation and maintenance personnel.

[0004] However, the fall arrester in the prior art usually has a limited clamping force, which makes it impossible for people of different weights to adjust the force according to their own weight. For lighter people, an excessively large limited clamping force may cause excessive restraint during normal work activities, limit their flexibility, increase operational fatigue, and even affect the normal work process due to false triggering. For heavier people, the fixed clamping force may not provide sufficient braking force when falling, resulting in a longer braking distance, an increased risk of personal injury, and an inability to fully guarantee their safety during the operation and maintenance of wind turbines, thereby reducing the reliability and applicability of the fall arrest device. Therefore, a wind turbine operation and maintenance fall arrest device is proposed to solve the above problems. Utility Model Content

[0005] In order to make up for the above shortcomings, the utility model provides a wind turbine operation and maintenance anti-fall device, which aims to improve the problem that the anti-fall device in the prior art usually has a fixed clamping force, which makes it impossible for people of different weights to adjust.

[0006] In order to achieve the above purpose, the present invention adopts the following technical solutions:

[0007] A wind turbine operation and maintenance anti-fall device comprises a bottom plate, a side wall of the bottom plate is rotatably connected to a first steel cable pulley, one end of the first steel cable pulley is fixedly connected to a top plate, and a clamping assembly is provided inside the bottom plate;

[0008] The clamping assembly includes a bolt, an outer wall of the bolt is rotatably connected to the inside of the base plate, the outer wall of the bolt is rotatably connected to the inside of the first moving block, the outer wall of the bolt is rotatably connected to a handle, the side wall of the first moving block is fixedly connected to a collar, the side wall of the collar is provided with a spring, one end of the spring is fixedly connected to the side wall of the collar, the other end of the spring is fixedly connected to the side wall of the other collar, one end of the bolt is fixedly connected to a stopper, the side wall of the stopper is provided with one end of the bolt, and the side wall of the first moving block is provided with a rotating assembly;

[0009] As a further description of the above technical solution:

[0010] The rotating assembly includes a hollow block, the side wall of the hollow block is fixedly connected to the side wall of the first moving block, and the inner wall of the hollow block is rotatably connected to the second cable pulley;

[0011] As a further description of the above technical solution:

[0012] The side wall of the bottom plate is fixedly connected to a support plate, and the inner wall of the support plate is rotatably connected to a third connecting rod;

[0013] As a further description of the above technical solution:

[0014] The inner wall of the third connecting rod is rotatably connected to the second connecting rod, and the outer wall of the second connecting rod is rotatably connected to the first connecting rod;

[0015] As a further description of the above technical solution:

[0016] The side wall of the first connecting rod is fixedly connected to a clamping block, and the side wall of the clamping block is slidably connected to the side wall of the support plate;

[0017] As a further description of the above technical solution:

[0018] A second moving block is slidably connected to the interior of the support plate, and a threaded rod is threadedly connected to the interior of the second moving block;

[0019] As a further description of the above technical solution:

[0020] One end of the threaded rod is fixedly connected to a grabbing plate, a side wall of the grabbing plate is rotatably connected to a side wall of the second moving block, and the side wall of the grabbing plate is rotatably connected to a side wall of the bottom plate;

[0021] As a further description of the above technical solution:

[0022] The side wall of the first cable wheel is fixedly connected with a ratchet, the interior of the bottom plate is rotatably connected with a pawl, and the side wall of the pawl is provided with an elastic plate.

[0023] The utility model has the following beneficial effects:

[0024] 1. In the utility model, by rotating the handle, the handle is forced to rotate on the outer wall of the bolt side wall, and the rotation of the handle drives the first moving block of the side wall, and the first moving block is forced to drive the hollow block of the side wall to move, and the hollow block drives the second steel cable wheel on the inner wall to fit the outer wall of the steel cable, thereby achieving the effect of adjustable clamping force, solving the problem that the clamping force cannot be adjusted, resulting in different falling speeds when people of different weights use the fall arrester, and improving the stability of the operation and maintenance of the fall arrest device.

[0025] 2. In the utility model, by rotating the grab plate, the grab plate drives the threaded rod to rotate, and the threaded rod is subjected to force to drive the second moving block to move, and the movement of the second moving block drives the second connecting rod to rotate, and the rotation of the second connecting rod will drive the first connecting rod to rotate, and then drive the clamping block to clamp it on the ladder, achieving the effect of convenient picking up, solving the problem in the prior art that manual labor is required to carry it every time maintenance is performed, and improving the convenience of operation and maintenance of the anti-fall device. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 This is a three-dimensional schematic diagram of a wind turbine operation and maintenance anti-fall device proposed by the utility model;

[0027] Figure 2 This is a schematic diagram of the cross-sectional structure of the bottom plate of a wind turbine operation and maintenance anti-fall device proposed by the utility model;

[0028] Figure 3 This is a schematic diagram of the top plate side wall structure of a wind turbine operation and maintenance anti-fall device proposed by the utility model;

[0029] Figure 4 This is a schematic diagram of the bottom plate side wall structure of a wind turbine operation and maintenance anti-fall device proposed by the utility model;

[0030] Figure 5 This is a structural diagram of a support plate of a wind turbine operation and maintenance anti-fall device proposed by the utility model;

[0031] Figure 6 This is a schematic diagram of the side wall structure of the first steel cable pulley of a wind turbine operation and maintenance anti-fall device proposed by the utility model.

[0032] Legend:

[0033] 1. Bottom plate; 2. Top plate; 3. First cable pulley; 4. First moving block; 5. Handle; 6. Grab plate; 7. Ring; 8. Spring; 9. Bolt; 10. Threaded rod; 11. Stop block; 12. Hollow block; 13. Second cable pulley; 14. Clamping block; 15. First connecting rod; 16. Second connecting rod; 17. Third connecting rod; 18. Support plate; 19. Second moving block; 20. Ratchet; 21. Pawl; 22. Elastic plate. DETAILED DESCRIPTION

[0034] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0035] Reference Figure 1-Figure 3 The utility model provides an embodiment: a wind turbine operation and maintenance anti-fall device, comprising a bottom plate 1, the bottom plate 1 can be made of high-strength aluminum alloy, the side wall of the bottom plate 1 is rotatably connected to a first steel cable wheel 3, a section of the first steel cable wheel 3 is fixedly connected to a top plate 2, and a clamping component is provided inside the bottom plate 1;

[0036] The clamping assembly includes a bolt 9, which can be made of high-quality alloy steel. The outer wall of the bolt 9 is rotatably connected to the inside of the base plate 1, and the outer wall of the bolt 9 is rotatably connected to the inside of the first moving block 4. The outer wall of the bolt 9 is rotatably connected to a handle 5, and the handle 5 is preferably made of rubber-wrapped metal. The side wall of the first moving block 4 is fixedly connected to a collar 7, and the collar 7 can be made of stainless steel. A spring 8 is provided on the side wall of the collar 7, and one end of the spring 8 is fixedly connected to the side wall of the collar 7, and the other end of the spring 8 is fixedly connected to the side wall of another collar 7. One end of the bolt 9 is fixedly connected to a stopper 11, and the side wall of the stopper 11 is provided with one end of the bolt 9. The side wall of the first moving block 4 is provided with a rotating assembly;

[0037] Specifically, when using the wind turbine operation and maintenance anti-fall device, the operating process is rigorous and orderly. First, the steel cable is carefully placed at a specific location on the side wall of the top plate 2. This location has been carefully designed to ensure the precise execution of subsequent operations. Then, the handle 5 is turned. Under force, the handle 5 begins to slowly rotate along the outer wall of the bolt 9. Due to the force transmission, the handle 5 drives the first movable block 4 connected to it to slide along a preset track. During this sliding process, the ring 7 on the side wall of the first movable block 4 is also pulled and moved. The movement of the ring 7 in turn pulls on the spring 8 connected to its side wall, causing the spring 8 to contract under force. At the same time, the rotation of the bolt 9 pushes the stopper 11 to move. The stopper 11 is in a linked relationship with the other first movable block 4, so the movement of the stopper 11 also drives the other first movable block 4 to move synchronously. When the first movable block 4 moves, the hollow block 12 on its side wall is also driven to move. Finally, the movement of the hollow block 12 causes the second steel cable pulley 13 on the inner wall to fit tightly against the outer wall of the steel cable. Through this series of ingenious mechanical transmissions and the coordinated operation of components, the flexible adjustment of the steel cable clamping force according to actual needs was successfully achieved, greatly improving the adaptability of the anti-fall device to different working conditions and differences in personal weight.

[0038] Reference Figure 4-Figure 6 The rotating assembly includes a hollow block 12. The side wall of the hollow block 12 can be made of a strong carbon fiber composite material. The side wall of the hollow block 12 is fixedly connected to the side wall of the first moving block 4. The inner wall of the hollow block 12 is rotatably connected to the second cable wheel 13. The side wall of the bottom plate 1 is fixedly connected to the support plate 18. The support plate 18 can be made of a high-strength titanium alloy. The inner wall of the support plate 18 is rotatably connected to the third connecting rod 17. The inner wall of the third connecting rod 17 is rotatably connected to the second connecting rod 16. The outer wall of the second connecting rod 16 is rotatably connected to the first connecting rod 15. The side wall of the first connecting rod 15 is fixedly connected to the clamping block 14. The side wall of the clamping block 14 A second movable block 19 is slidably connected to the side wall of the support plate 18, and the interior of the support plate 18 is slidably connected thereto. The second movable block 19 can be made of engineering plastic, is lightweight and slides smoothly, and a threaded rod 10 is threadedly connected to the interior of the second movable block 19. One end of the threaded rod 10 is fixedly connected to a grab plate 6, and the grab plate 6 can be made of metal and has an anti-slip treatment on the surface. The side wall of the grab plate 6 is rotatably connected to the side wall of the second movable block 19, and the side wall of the grab plate 6 is rotatably connected to the side wall of the base plate 1. A ratchet 20 is fixedly connected to the side wall of the first cable wheel 3, and a pawl 21 is rotatably connected to the interior of the base plate 1. An elastic plate 22 is provided on the side wall of the pawl 21;

[0039] Specifically, during this crucial process, the steel cable precisely adheres to the outer wall of the first cable pulley 3. As the relevant operations proceed, the first cable pulley 3 begins to rotate, driving the ratchet 20 on its sidewall to rotate synchronously. The rotation of the ratchet 20 in turn cleverly drives the pawl 21, causing it to rest firmly against one side of the ratchet 20. During this process, the elastic plate 22 plays a crucial role, timely resetting the pawl 21 so that it remains tightly attached to the outer wall of the ratchet 20, ensuring the stability and reliability of the entire transmission process. To place the device, the gripping plate 6 is first rotated. When the gripping plate 6 is subjected to force, it effectively drives the threaded rod 10 to rotate. As the threaded rod 10 rotates under the force, it drives the second movable block 19 on the outer wall, causing it to move smoothly along the inner wall of the support plate 18. The movement of the second movable block 19 is not isolated; it also drives the second connecting rod 16 on the inner wall to rotate. This rotation, in turn, creates a chain reaction, driving the third connecting rod 17 to rotate as well. Subsequently, the rotation of the second connecting rod 16 also drives the first connecting rod 15 to rotate accordingly. Ultimately, the rotation of the first connecting rod 15 drives the clamping blocks 14 on the side walls, enabling them to gather and disperse as needed. During this complex and orderly series of movements, the inner walls of the clamping blocks 14 tightly adhere to the outer walls of the ladder. This design and operation successfully achieves the effect of convenient collection, greatly reducing the inconvenience of workers carrying each time, effectively improving work efficiency and reducing labor intensity.

[0040] Working principle: When using the wind turbine operation and maintenance anti-fall device, first place the steel cable on the side wall of the top plate 2, then rotate the handle 5, the handle 5 is forced to rotate on the outer wall of the bolt 9, and then the handle 5 is forced to drive the first moving block 4 to slide, and in this process, the ring 7 on the side wall of the first moving block 4 is driven to move, and the movement of the ring 7 drives the spring 8 of the side wall to shrink, and then the bolt 9 is rotated to drive the stopper 11 to move, and in addition, the movement of the stopper 11 drives another first moving block 4 to move, and when the first moving block 4 moves, the hollow block 12 on the side wall is driven to move, and then the hollow block 12 moves to drive the second steel cable pulley 13 on the inner wall to fit the outer wall of the steel cable, achieving the effect of adjustable clamping force, and in this process, the steel cable will fit on the outer wall of the first steel cable pulley 3, and then the first steel cable pulley 3 rotates to ratchet the side wall When the second connecting rod 16 rotates, the third connecting rod 17 will also be driven to rotate when the second connecting rod 16 rotates. Subsequently, the rotation of the second connecting rod 16 drives the first connecting rod 15 to rotate accordingly. The rotation of the first connecting rod 15 drives the clamping block 14 of the side wall to gather and disperse. In this process, the inner wall of the clamping block 14 is fitted to the outer wall of the ladder, which facilitates collection and reduces the need for workers to carry it many times.

[0041] 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 replacements for some of the technical features therein. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A wind turbine operation and maintenance anti-fall device, comprising a base plate (1), characterized in that: The side wall of the bottom plate (1) is rotatably connected to a first steel cable wheel (3), one end of the first steel cable wheel (3) is fixedly connected to the top plate (2), and a clamping assembly is provided inside the bottom plate (1); The clamping assembly comprises a bolt (9), the outer wall of the bolt (9) is rotatably connected to the inside of the base plate (1), the outer wall of the bolt (9) is rotatably connected to the inside of the first moving block (4), the outer wall of the bolt (9) is rotatably connected to a handle (5), the side wall of the first moving block (4) is fixedly connected to a collar (7), the side wall of the collar (7) is provided with a spring (8), one end of the spring (8) is fixedly connected to the side wall of the collar (7), the other end of the spring (8) is fixedly connected to the side wall of another collar (7), one end of the bolt (9) is fixedly connected to a stopper (11), the side wall of the stopper (11) is provided with one end of the bolt (9), and the side wall of the first moving block (4) is provided with a rotating assembly.

2. A wind turbine operation and maintenance anti-fall device according to claim 1, characterized in that: The rotating assembly comprises a hollow block (12), the side wall of the hollow block (12) is fixedly connected to the side wall of the first moving block (4), and the inner wall of the hollow block (12) is rotatably connected to a second steel cable wheel (13).

3. The wind turbine operation and maintenance anti-fall device according to claim 1, characterized in that: The side wall of the bottom plate (1) is fixedly connected to a support plate (18), and the inner wall of the support plate (18) is rotatably connected to a third connecting rod (17).

4. The wind turbine operation and maintenance anti-fall device according to claim 3, characterized in that: The inner wall of the third connecting rod (17) is rotatably connected to the second connecting rod (16), and the outer wall of the second connecting rod (16) is rotatably connected to the first connecting rod (15).

5. The wind turbine operation and maintenance anti-fall device according to claim 4, characterized in that: The side wall of the first connecting rod (15) is fixedly connected to a clamping block (14), and the side wall of the clamping block (14) is slidably connected to the side wall of the support plate (18).

6. The wind turbine operation and maintenance anti-fall device according to claim 5, characterized in that: The support plate (18) is internally slidably connected to a second moving block (19), and the second moving block (19) is internally threadedly connected to a threaded rod (10).

7. The wind turbine operation and maintenance anti-fall device according to claim 6, characterized in that: One end of the threaded rod (10) is fixedly connected to a grabbing plate (6), and the side wall of the grabbing plate (6) is rotatably connected to the side wall of the second moving block (19), and the side wall of the grabbing plate (6) is rotatably connected to the side wall of the bottom plate (1).

8. The wind turbine operation and maintenance anti-fall device according to claim 1, characterized in that: The side wall of the first cable wheel (3) is fixedly connected to a ratchet (20), the interior of the bottom plate (1) is rotatably connected to a ratchet (21), and the side wall of the ratchet (21) is provided with an elastic plate (22).

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