A wind power generation maintenance device

Abstract

This utility model discloses a wind power generation maintenance device, belonging to the technical field of wind power generation equipment. It includes a workbench assembled from modules, a rolling mechanism, and a lifting system. The connecting mechanism between modules includes connecting blocks, connecting grooves, and pins. When the connecting block is inserted, it pushes the internal bent rod and baffle, causing the pin to automatically fall and lock under gravity, achieving rapid assembly. Furthermore, the rolling mechanism, located on the inner wall of the workbench, includes a fixed tube, a fixed shaft that can slide within the tube, wheels, and a second spring. The second spring constantly pushes the wheels radially against the outer wall of the column, allowing the workbench to automatically adapt to changes in the taper of the column during lifting. This utility model solves the technical problems of existing platforms being cumbersome to assemble and disassemble and difficult to adapt to tapered columns, offering advantages such as high assembly and disassembly efficiency, stable lifting process, and safety and reliability.

Description

Technical Field

[0001] This utility model relates to the field of wind power generation equipment technology, and in particular to a wind power generation maintenance device. Background Technology

[0002] Wind turbines are typically installed in the field, with their columns or towers exposed to complex environments year-round, requiring regular maintenance such as inspection, cleaning, painting, or repair of the exterior walls. Due to the enormous height of the towers, these operations must rely on specialized aerial work platforms.

[0003] One common approach in existing solutions is to use a wraparound work platform. For ease of transport and on-site installation, this type of platform is typically designed as multiple modular units. Workers assemble these modules around a support column on the ground to form a complete circular platform, which is then lifted to the working height using a lifting system.

[0004] However, in practical applications, it has been found that the existing modular platform splicing methods have significant shortcomings. Most platform modules rely on traditional bolts, pins, or clips for connection. This connection method is cumbersome, requiring each hole to be aligned and tightened on-site, which not only consumes a lot of manpower and time, but is also inefficient for installation and disassembly, especially in harsh outdoor environments with strong winds.

[0005] This inefficient assembly and disassembly process prolongs the preparation and completion time for maintenance work, directly reducing the effective operating time of the wind turbine and increasing maintenance costs. Moreover, the complex tightening operations are prone to omissions or inadequate tightening, posing safety hazards for subsequent high-altitude operations.

[0006] Therefore, this utility model proposes a wind power generation maintenance device to overcome the shortcomings of the prior art. Utility Model Content

[0007] To overcome the above shortcomings, this utility model provides a wind power generation maintenance device, which aims to improve the problems in the existing technology where the maintenance platform is difficult to adapt to the conical structure of the column, resulting in unstable lifting and lowering, and the platform module splicing and disassembly efficiency is low.

[0008] To achieve the above objectives, this utility model provides the following technical solution: a wind power generation maintenance device, comprising: a workbench, a rolling mechanism, a cable, a fixing block, and a cable take-up machine; The workbench is adapted to surround the outside of the column; The fixing block is fixedly connected to the upper surface of the workbench; The cable connects the fixing block and the cable take-up machine; The rolling mechanism is disposed on the inner wall of the worktable and abuts against the outer wall of the column; The workbench includes at least two modules, and a connecting mechanism is provided between the modules; The connecting mechanism includes a connecting block fixedly connected to one of the modules, a connecting slot opened in another module, and a pin slidably disposed inside the connecting slot. Preferably, the connecting mechanism includes a bent rod slidably connected to the worktable, a first spring, and a baffle; the upper end of the bent rod is fixedly connected to the baffle, which is used to block the pin; the first spring abuts against the other end of the bent rod, and one end of the bent rod is pushed by the connecting block.

[0009] Preferably, a chain is connected to the upper end of the pin, and a collar is connected to the end of the chain away from the pin.

[0010] Preferably, the rolling mechanism includes a fixed tube fixedly connected to the inner wall of the worktable, a fixed shaft slidably passing through the fixed tube, an installation block fixedly connected to the end of the fixed shaft, and a wheel rotatably connected to the installation block.

[0011] Preferably, a retaining ring is fixedly connected to the end of the fixed shaft located inside the fixed tube; a second spring is provided inside the fixed tube, the second spring is sleeved outside the fixed shaft, and the two ends of the second spring abut against the bottom inner side of the fixed tube and the retaining ring, respectively.

[0012] Preferably, a limiting ring is fixedly connected to the fixed shaft, and the limiting ring is located between the mounting block and the fixed tube.

[0013] Preferably, a fence is fixedly connected to the upper surface of the workbench.

[0014] Preferably, the fence is provided along the inner and outer rings of the upper surface of the workbench.

[0015] This utility model has the following beneficial effects: 1. In this utility model, by setting up a quick connection mechanism consisting of a connecting block, a connecting groove, a pin, a bent rod, a baffle and a first spring, the bent rod and the baffle are pushed to move when the connecting block is inserted, and the pin is automatically lowered and locked under the action of gravity. This solves the problems of cumbersome, time-consuming and labor-intensive platform module splicing and unreliable locking in the prior art. It achieves the technical effect of ingenious structure, convenient operation, quick and automatic locking and unlocking without additional tools, and greatly improves the efficiency of assembly and disassembly.

[0016] 2. In this utility model, by setting up a spring telescopic rolling mechanism consisting of a fixed tube, a fixed shaft slidably set in the fixed tube, a second spring, and a retaining ring, the elastic force of the second spring is used to continuously push the fixed shaft and the wheel radially against the outer wall of the column. This solves the problem in the prior art that the maintenance platform is difficult to adapt to the tapered structure of the wind turbine column, which is narrow at the top and wide at the bottom, resulting in platform shaking, unstable contact, or jamming during the lifting process. It achieves the technical effect of automatically adapting to changes in the diameter of the column, ensuring that the platform is always stably attached to the column, and providing smooth lifting and high safety and reliability.

[0017] 3. In this utility model, by splicing the workbench modules into a ring structure and using cables and cable reeling machines for lifting, and setting inner and outer ring fences, the problems of small working space, poor stability and inadequate protection in traditional maintenance methods (such as suspended baskets) are solved. It achieves the technical effect of providing workers with a 360-degree surrounding working space, stable overall structure, comprehensive protection and high work safety. Attached Figure Description

[0018] Figure 1 This is a three-dimensional structural diagram of a wind power generation maintenance device proposed in this utility model; Figure 2 This is a schematic diagram of the connecting block portion of a wind power generation maintenance device proposed in this utility model; Figure 3 This is a schematic diagram of the wheel section structure of a wind power generation maintenance device proposed in this utility model; Figure 4 for Figure 2 Enlarged view of point A in the middle.

[0019] Legend: 1. Workbench; 2. Connecting mechanism; 201. Connecting block; 202. Insertion hole; 203. Collar; 204. Chain; 205. Pin; 206. Baffle; 207. Bend rod; 208. First spring; 209. Connecting groove; 3. Rolling mechanism; 301. Mounting block; 302. Wheel; 303. Fixed shaft; 304. Limiting ring; 305. Fixed tube; 306. Second spring; 307. Retaining ring; 4. Fence; 5. Post; 6. Cable; 7. Fixing block; 8. Cable winding machine. Detailed Implementation

[0020] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0021] Example:

[0022] Please refer to Figures 1 to 4 This utility model provides a wind power generation maintenance device, which aims to solve the problems in the prior art where the maintenance platform is difficult to adapt to the conical structure of the wind turbine column, resulting in unstable lifting and lowering, and the low efficiency of platform module splicing and disassembly.

[0023] The wind power maintenance device includes a work platform 1, a rolling mechanism 3, a cable 6, a fixing block 7, and a cable take-up mechanism 8. The work platform 1 is adapted to surround the outside of the column 5. The fixing block 7 is fixedly connected to the upper surface of the work platform 1. The cable 6 connects the fixing block 7 and the cable take-up mechanism 8. The rolling mechanism 3 is disposed on the inner wall of the work platform 1 and abuts against the outer wall of the column 5. A railing 4 is fixedly connected to the upper surface of the work platform 1, and the railing 4 is arranged along the inner and outer rings of the upper surface of the work platform 1.

[0024] The workbench 1 includes at least two modules, and a connecting mechanism 2 is provided between the modules. The connecting mechanism 2 includes a connecting block 201 fixedly connected to one module, a connecting groove 209 formed in the other module, and a pin 205 slidably disposed inside the connecting groove 209. The connecting block 201 has a socket 202, and the pin 205 is adapted to be inserted into the socket 202.

[0025] The connecting mechanism 2 includes a bent rod 207 slidably connected to the worktable 1, a first spring 208, and a baffle 206; the upper end of the bent rod 207 is fixedly connected to the baffle 206; in the initial state, the baffle 206 is located below the pin 205 to prevent the pin 205 from sliding vertically; the first spring 208 abuts against the other end of the bent rod 207 to apply a normal restoring force to the bent rod 207; one end of the bent rod 207 extends into the internal path of the connecting groove 209; during the process of the connecting block 201 being inserted into the connecting groove 209, the connecting block 201... The front end of the device continuously pushes this end of the bent rod 207, forcing the bent rod 207 to overcome the elastic force of the first spring 208 and undergo horizontal displacement. The horizontal displacement of the bent rod 207 will drive the baffle 206 fixed to it to move synchronously. When the baffle 206 is completely moved out of the space below the pin 205, the obstruction to the pin 205 is released. The pin 205 then falls vertically under the action of gravity and is accurately inserted into the socket 202 of the connecting block 201. This structure enables a fast and automated locking connection between modules, which is easy to operate and the connection status is reliable.

[0026] To facilitate disassembly, a chain 204 is connected to the upper end of the pin 205. A collar 203 is connected to the end of the chain 204 away from the pin 205. When it is necessary to separate the module of the workbench 1, the operator only needs to pull the collar 203 upwards to completely pull the pin 205 out of the socket 202 through the chain 204, thereby unlocking and achieving quick disassembly.

[0027] The rolling mechanism 3 is described in detail. The rolling mechanism 3 includes a fixed tube 305 fixedly connected to the inner wall of the worktable 1. A fixed shaft 303 is slidably inserted inside the fixed tube 305. The axis of the fixed shaft 303 is arranged in a roughly radial direction. One end of the fixed shaft 303 extending out of the fixed tube 305 is fixedly connected to a mounting block 301. A wheel 302 is rotatably connected to the mounting block 301 through an axle. The rolling surface of the wheel 302 abuts against the column 5. The other end of the fixed shaft 303 located inside the fixed tube 305 is fixedly connected to a retaining ring 307. A second spring 306 is provided in the cavity of the fixed tube 305. The second spring 306 is sleeved outside the fixed shaft (303), and the two ends of the second spring 306 abut against the inner bottom of the fixed tube 305 and the retaining ring 307, respectively. A limiting ring 304 is also fixedly connected to the fixed shaft 303. The limiting ring 304 is located between the mounting block 301 and the opening of the fixed tube 305. Furthermore, as a preferred protective structure, a fence 4 is fixedly connected to the upper surface of the workbench 1. The fence 4 is made of multiple uprights 5 and crossbars welded or screwed together. The fence 4 is firmly installed on the upper surface of the workbench 1, and the fence 4 is arranged along the inner and outer circumferences of the upper surface of the workbench 1 to form two protective barriers, one inside and one outside.

[0028] Working principle: When assembling workbench 1, the connecting block 201 of one module is aligned and inserted into the connecting slot 209 of another module. The front end of the connecting block 201 will squeeze and push the bent rod 207 to slide. When the bent rod 207 slides, it compresses the first spring 208 inside the connecting slot 209. The baffle 206, which is fixedly connected to the upper end of the bent rod 207, moves synchronously. The baffle 206 removes the obstruction below the pin 205. Under the action of gravity, the pin 205 automatically slides vertically and inserts into the insertion hole 202 of the connecting block 201, thereby realizing the automatic locking and fixing of the two modules. When disassembly is required, the collar 203 is pulled up. The collar 203 drives the pin 205 to slide up out of the insertion hole 202 through the chain 204, and the connecting block 201 can be pulled out. At this time, the first spring 208 releases its elastic force and pushes the bent rod 207 and the baffle 206 to reset.

[0029] During lifting operations, the cable reel 8 tightens or loosens the cable 6. The cable 6 pulls the entire workbench 1 vertically along the column 5 through the fixing block 7. During the movement, the rolling mechanism 3 plays an adaptive adjustment role. The second spring 306 inside the rolling mechanism 3 always applies radial thrust to the retaining ring 307. This thrust is transmitted to the mounting block 301 through the fixed shaft 303, so that the wheel 302 is always pressed against the outer wall of the column 5 and rolls with the platform lifting. When the diameter of the column 5 changes, the outer wall of the column 5 will generate a changing radial thrust on the wheel 302, forcing the fixed shaft 303 to slide radially within the fixed tube 305 and compressing or releasing the second spring 306, thereby dynamically adjusting the radial position of the wheel 302 to ensure that the workbench 1 can stably fit against the column 5 throughout the entire lifting process. The limiting ring 304 on the fixed shaft 303 can prevent the fixed shaft 303 from accidentally slipping out of the fixed tube 305. The railing 4 on the upper surface of the workbench 1 provides safety protection for the operators.

[0030] The above description is merely a specific embodiment of this utility model, but the protection scope of this utility model is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in this utility model should be included within the protection scope of this utility model. Therefore, the protection scope of this utility model should be determined by the protection scope of the claims.

Claims

1. A wind power generation maintenance device, comprising a workbench (1), a rolling mechanism (3), a cable (6), a fixing block (7), and a cable take-up machine (8), wherein the workbench (1) is adapted to surround the outside of a column (5), the fixing block (7) is fixedly connected to the upper surface of the workbench (1); the cable (6) connects the fixing block (7) and the cable take-up machine (8), and the rolling mechanism (3) is disposed on the inner wall of the workbench (1) and abuts against the outer wall of the column (5), characterized in that, The workbench (1) includes at least two modules, and a connecting mechanism (2) is provided between the modules. The connecting mechanism (2) includes a connecting block (201) fixedly connected to one of the modules, a connecting groove (209) opened in the other module, and a pin (205) slidably disposed inside the connecting groove (209). The connecting block (201) is provided with a socket (202), and the pin (205) is adapted to be inserted into the socket (202).

2. The wind power generation maintenance device according to claim 1, characterized in that, The connecting mechanism (2) includes a bent rod (207), a first spring (208), and a baffle (206) slidably connected to the workbench (1); the upper end of the bent rod (207) is fixedly connected to the baffle (206), and the baffle (206) is used to block the pin (205); the first spring (208) abuts against the other end of the bent rod (207), and one end of the bent rod (207) is pushed by the connecting block (201).

3. The wind power generation maintenance device according to claim 1, characterized in that, The upper end of the pin (205) is connected to a chain (204), and the end of the chain (204) away from the pin (205) is connected to a collar (203).

4. A wind power generation maintenance device according to claim 1, characterized in that, The rolling mechanism (3) includes a fixed tube (305) fixedly connected to the inner wall of the worktable (1), a fixed shaft (303) slidingly passing through the fixed tube (305), an mounting block (301) fixedly connected to the end of the fixed shaft (303), and a wheel (302) rotatably connected to the mounting block (301).

5. A wind power generation maintenance device according to claim 4, characterized in that, The fixed shaft (303) is fixedly connected to a retaining ring (307) at its end inside the fixed tube (305); a second spring (306) is provided inside the fixed tube (305), the second spring (306) is sleeved on the outside of the fixed shaft (303), and the two ends of the second spring (306) abut against the bottom of the inner side of the fixed tube (305) and the retaining ring (307) respectively.

6. A wind power generation maintenance device according to claim 4, characterized in that, A limiting ring (304) is fixedly connected to the fixed shaft (303), and the limiting ring (304) is located between the mounting block (301) and the fixed tube (305).

7. A wind power generation maintenance device according to claim 1, characterized in that, The upper surface of the workbench (1) is fixedly connected to a railing (4).

8. A wind power generation maintenance device according to claim 7, characterized in that, The fence (4) is set along the inner and outer rings of the upper surface of the workbench (1).

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