A wind turbine bolt maintenance operation auxiliary tool

Abstract

The utility model relates to the technical field of wind power generation equipment maintenance, more particularly to a kind of wind turbine generator unit bolt maintenance operation auxiliary tool, including at least three support rods, fixed platform and support seat, the support seat is set in the upper end surface of the fixed platform;The lower end surface of the fixed platform is provided with slide, the support rod top is provided with sliding block, and the sliding block is slidably arranged in the slide.This utility model provides stable support for heavy torque wrench and other bolt maintenance tools by the combination design of support seat, adjustable support rod and fixed platform, effectively avoids the security risks such as tool slipping, personnel muscle strain or equipment damage caused by manual handling and unstable holding.

Description

Technical Field

[0001] This utility model relates to the technical field of wind power equipment maintenance, and more specifically, to an auxiliary tooling for wind turbine bolt maintenance. Background Technology

[0002] As a core component of wind turbine generators, the drivetrain's operating condition directly affects the overall reliability and power generation efficiency of the turbine. Therefore, regularly checking and tightening the high-strength bolts at critical connections in the drivetrain, such as between the hub and the main shaft, is a crucial and frequent maintenance task.

[0003] Currently, the aforementioned torque maintenance work mainly relies on manual operation. Maintenance personnel must work at heights in the extremely confined space of the engine room, using heavy-duty torque wrenches and other specialized tools. This traditional manual maintenance mode has several significant problems: First, the working space is narrow, and the surrounding structures such as the spindle flange and main bearing housing are complex, allowing very little room for personnel movement and tool swing, making multi-person coordination extremely difficult, or even impossible; Second, the maintenance tools are very heavy due to the need to meet high torque output, leading to fatigue for a single person operating them for extended periods, resulting in low work efficiency and safety hazards such as injury or equipment damage due to slippage. Currently, to enable single-person operation, simple support devices are often used to support the maintenance tools. However, on the one hand, since the support surface on site is not a flat plane, the simple support device is prone to shaking or tilting during support, still posing a safety hazard of tool slippage leading to injury or equipment damage; on the other hand, since the positions of multiple bolts in the engine room vary, the simple support device cannot be used simultaneously for maintenance work on bolts in different locations. Utility Model Content

[0004] The purpose of this utility model is to overcome the shortcomings of existing technologies, such as the difficulty of multi-person collaborative operation and the fatigue, reduced work efficiency, and safety hazards caused by long-term operation of maintenance tools by a single person. It provides an auxiliary tooling for the maintenance of bolts in wind turbine generator sets, which provides stable support for maintenance tools, enables single-person operation, and can effectively avoid safety risks such as tool slippage, muscle strain, or equipment damage caused by a single person handling the tool by hand or unstable grip. It can also be adapted to the maintenance of bolts in different locations.

[0005] To solve the above-mentioned technical problems, the technical solution adopted by this utility model is as follows: A tooling for auxiliary maintenance of bolts on a wind turbine generator set is provided, comprising at least three support rods, a fixed platform, and a support base. The support base is disposed on the upper end face of the fixed platform. A slide rail is provided on the lower end face of the fixed platform. A sliding block is provided at the top of each support rod, and the sliding block is slidably disposed within the slide rail.

[0006] This utility model provides an auxiliary tooling for bolt maintenance of wind turbine generator sets. During use, the operator first places a fixed platform and support base at the location of the bolt to be maintained. Then, the support rod is adjusted to regulate the distribution of the sliding blocks within the track. Three stable support points are located on the support surface inside the generator nacelle to stably support the fixed platform and support base, preventing overturning during use. Finally, the bolt maintenance tools are securely placed on the support base, providing stable and reliable load-bearing support. The operator can then safely and effortlessly perform subsequent maintenance work. This utility model, through the combined design of the support base, support rod, and fixed platform, provides stable support for bolt maintenance tools such as tension pumps and torque wrenches. It allows for single-person operation, avoiding safety risks such as tool slippage, muscle strains, or equipment damage caused by manual handling and unstable grip. Because the sliding blocks are slidably positioned within the track, this utility model is also adaptable to bolt maintenance at different locations and to the maintenance of different generator models.

[0007] Furthermore, the slide rail is provided with multiple positioning grooves, and the top of the sliding block is provided with a positioning protrusion, which can slide entirely or partially into the positioning groove. Through the cooperation between the sliding block and the slide rail, the position of the support rod can be flexibly adjusted; the positioning protrusion on the top of the sliding block, in conjunction with the multiple positioning grooves in the slide rail, constitutes a simple-to-operate and reliable positioning component, preventing accidental sliding of the support rod and ensuring the stability of the support base and maintenance tools.

[0008] Furthermore, the slide rail is one or a combination of several of the following: annular slide rail, straight slide rail, or cross slide rail. All the different shapes of slide rails listed above allow the support rod to be moved to find three stable support points on the support surface within the generator set nacelle. This allows the arrangement of the support rod to be flexibly adjusted according to the work site conditions, providing greater flexibility and adaptability. It also enables the tooling to quickly adapt to various bolt layout schemes, enhancing the tool's versatility.

[0009] Furthermore, the slide rail includes at least two arc-shaped sections, with the centers of the at least two arc-shaped sections coinciding and having the same annular diameter ratio. Designing the slide rail as an arc shape facilitates smooth sliding of the sliding block within the rail.

[0010] Furthermore, the slide rail is provided with mounting holes. The width of the slide rail is greater than the diameter of the support rod and less than the diameter of the sliding block, and the diameter of the mounting holes is greater than the diameter of the sliding block. The slide rail width being greater than the support rod diameter and less than the sliding block diameter prevents the sliding block from dislodging during movement. When not in use, the slider can be removed from the slide rail through the mounting holes, thereby separating the support rod from the fixed platform, reducing the overall space occupied by the fixture and facilitating transport. During use, the slider can be quickly installed into the slide rail through the mounting holes, thereby quickly connecting the support rod and the fixed platform.

[0011] Furthermore, the support rods are telescopic structures with adjustable lengths. This adjustable telescopic structure allows the support rods to flexibly adapt to working surfaces at different heights within the cabin. Operators can quickly adjust the length of each support rod according to actual operational needs, thereby ensuring the fixed platform remains level and stable, and allowing tools on the support base to be precisely aligned with the bolts.

[0012] Furthermore, the support rod includes a first adjusting rod, a second adjusting rod, and a locking assembly for locking the relative positions of the first adjusting rod and the second adjusting rod. The first adjusting rod is sleeved on the second adjusting rod, and the locking assembly is located at the connection between the first adjusting rod and the second adjusting rod. The sleeved design of the first and second adjusting rods enables rapid, stepless adjustment of the support rod length, flexibly adapting to different working height requirements. The locking assembly at the connection quickly fixes the relative positions of the two adjusting rods after adjustment, effectively preventing accidental retraction or displacement during operation, thereby ensuring the stability and reliability of the entire tooling support system and greatly improving the safety and operational efficiency of bolt maintenance work.

[0013] Furthermore, the locking assembly includes a sleeve, an elastic ring, a fixed post, and an eccentric block. The sleeve is located at the connection between the first adjusting rod and the second adjusting rod. The elastic ring is sleeved on the sleeve and has a fixed part and a movable part. The fixed post passes through the fixed part and the movable part, and the fixed part is fixedly connected to the fixed post. The movable part is movably connected to the fixed post and abuts against the eccentric block, which is also movably connected to the fixed post. In use, rotating the eccentric block pushes the movable part, causing it to slide on the fixed post, reducing the distance between the movable part and the fixed part. This causes the elastic ring to contract and press against the sleeve, generating strong friction to lock the adjusting rod. When unlocking is required, rotating the eccentric block moves the movable part away from the fixed part, and the elastic ring automatically resets under the action of the rebound force. The operation is simple and effortless. This structure achieves rigid fixation after stepless adjustment, effectively resisting vibration and impact during operation and preventing the support rod from retracting.

[0014] Furthermore, the top of the support base is provided with a mounting groove. The mounting groove provides a stable and reliable support and limiting structure for the bolt maintenance tool, significantly enhancing the stability and safety of the tool's placement on the support base and preventing the tool from rolling, slipping, or tipping over.

[0015] Furthermore, the support base is detachably connected to the fixed platform, and the support base and / or the fixed platform are provided with magnetic suction areas. The detachable connection between the support base and the fixed platform allows for replacement when different maintenance tools need to be supported. For example, tools with a flat bottom, such as tension pumps, can be supported by rectangular mounting slots or flat support bases without mounting slots. When supporting torque wrenches, the support base can be adjusted according to its dimensions. The magnetic suction areas on the support base or fixed platform can be used to place small parts such as bolts and nuts, preventing them from falling off.

[0016] Compared with the prior art, the beneficial effects of this utility model are: 1. Through the combined design of support base, adjustable support rod and fixed platform, it provides stable support for bolt maintenance tools such as tension pumps and torque wrenches, and can be operated by a single person. It effectively avoids safety risks such as tool slippage, muscle strain or equipment damage caused by a single person handling the tool by hand and unstable grip. 2. This fixture bears most of the weight of the maintenance tools, eliminating the need for operators to operate under heavy loads for extended periods. This significantly reduces labor intensity, prevents fatigue, and allows a single person to complete bolt torque verification and tightening work more efficiently, reducing reliance on multi-person collaborative operations. 3. The support rod is slidably connected to the slide rail and can be fixed in different positions. At the same time, the length of the support rod is adjustable, which allows the tooling to be flexibly adjusted and positioned according to different bolt arrangement positions in the engine room. It has good versatility and strong practicality. Attached Figure Description

[0017] Figure 1 A schematic diagram of the auxiliary tooling for bolt maintenance of wind turbine generator sets; Figure 2 This is a structural diagram of a fixed platform; Figure 3 This is a schematic diagram of the internal structure of the fixed platform; Figure 4 This is a schematic diagram of the support rod structure; Figure 5 This is a schematic diagram of the locking component.

[0018] In the attached diagram: 100, support rod; 110, sliding block; 111, positioning protrusion; 120, first adjusting rod; 130, second adjusting rod; 140, locking assembly; 141, sleeve; 142, elastic ring; 143, fixed post; 144, eccentric block; 145, moving part; 146, fixed part; 147, pin hole; 148, handle; 150, anti-slip pad; 200, fixed platform; 210, slide rail; 211, positioning groove; 212, mounting hole; 300, support base. Detailed Implementation

[0019] The present invention will be further described below with reference to specific embodiments. The accompanying drawings are for illustrative purposes only, representing schematic diagrams rather than actual physical objects, and should not be construed as limiting the scope of this patent. To better illustrate the embodiments of the present invention, some components in the drawings may be omitted, enlarged, or reduced, and do not represent the actual dimensions of the product. It is understandable to those skilled in the art that some well-known structures and their descriptions may be omitted in the drawings.

[0020] In the accompanying drawings of this utility model, the same or similar reference numerals correspond to the same or similar components. In the description of this utility model, it should be understood that if terms such as "upper," "lower," "left," and "right" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, they are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, the terms used to describe positional relationships in the drawings are only for illustrative purposes and should not be construed as limiting this patent. For those skilled in the art, the specific meaning of the above terms can be understood according to the specific circumstances.

[0021] Example 1 This embodiment is the first embodiment of the auxiliary tooling for the maintenance of bolts on wind turbine generator sets. It includes at least three support rods 100, a fixed platform 200 and a support base 300. The support base 300 is set on the upper end face of the fixed platform 200. A slide rail 210 is set on the lower end face of the fixed platform 200. A sliding block 110 is set on the top of the support rod 100 and the sliding block 110 is slidably set in the slide rail 210.

[0022] like Figure 1As shown, the auxiliary tooling for bolt maintenance of wind turbine generator sets proposed in this utility model allows the operator to first determine the positions of the fixed platform 200 and the support base 300 based on the location of the bolts to be maintained. Then, the support rod 100 is adjusted, and the position distribution of the sliding block 110 within the slide rail 210 is adjusted. Three stable support points are found on the support surface inside the generator nacelle, thus stably supporting the fixed platform 200 and the support base 300. The bolt maintenance tools are then securely placed on the support base 300, providing stable and reliable load-bearing support, allowing the operator to safely and effortlessly perform subsequent maintenance work. This utility model, through the combined design of the support base 300, support rod 100, and fixed platform 200, provides stable support for bolt maintenance tools such as tension pumps and torque wrenches, enabling single-person operation and avoiding safety risks such as tool slippage, muscle strain, or equipment damage caused by manual handling and unstable grip.

[0023] like Figure 2 , Figure 4 As shown, the slide rail 210 has multiple positioning grooves 211, and the top of the sliding block 110 has a positioning protrusion 111. The positioning protrusion 111 can slide completely or partially into the positioning groove 211. Through the cooperation of the sliding block 110 and the slide rail 210, the position of the support rod 100 can be flexibly adjusted. The positioning protrusion 111 on the top of the sliding block 110 cooperates with the multiple positioning grooves 211 in the slide rail 210 to form a simple and reliable positioning component, preventing the support rod 100 from sliding accidentally and ensuring the stability of the support base 300 and maintenance tools. During use, the operator first determines the position of the fixing platform 200 and the support base 300 according to the position of the bolts to be maintained. Then, according to the shape of the support surface inside the cabin, the operator slides the positioning protrusion 111 on the sliding block 110 into the corresponding positioning groove 211, so that the support rod 100 forms a stable support while preventing the support rod 100 from sliding accidentally, ensuring the stability of the support base 300 and maintenance tools.

[0024] The slide 210 is a combination of one or more slide types, including annular, straight, or cross slides. Designing the slide 210 in multiple optional forms, such as annular, straight, or cross shapes, provides greater flexibility and adaptability in the arrangement of the support rod 100, allowing the tooling to quickly adapt to various bolt layout schemes and enhancing the tool's versatility. Preferably, in this embodiment, the slide 210 includes at least two arc-shaped slide sections with coincident centers and equal ring diameter ratios. Designing the slide as an arc-shaped slide facilitates smooth sliding of the sliding block within the slide.

[0025] like Figure 3As shown, the slide 210 is provided with a mounting hole 212. The width of the slide 210 is greater than the diameter of the support rod 100 and less than the diameter of the sliding block 110. The diameter of the mounting hole 212 is greater than the diameter of the sliding block 110. The width of the slide 210, which is greater than the diameter of the support rod 100 and less than the diameter of the sliding block 110, can prevent the sliding block 110 from coming off during movement. When not in use, the slider can be removed from the slide 210 through the mounting hole 212, thereby separating the support rod 100 from the fixed platform 200, reducing the overall space occupied by the tooling and making it easy to carry. During use, the slider can be quickly installed into the slide 210 through the mounting hole 212, thereby quickly connecting the support rod 100 and the fixed platform 200.

[0026] Example 2 This embodiment is the second embodiment of the auxiliary tooling for bolt maintenance of wind turbine generator sets. This embodiment is similar to the first embodiment, except that the support rod 100 is a telescopic structure with adjustable length. The adjustable telescopic structure of the support rod 100 allows it to flexibly adapt to different working surfaces at different heights within the nacelle. The operator can quickly adjust the length of each support rod 100 according to actual operational needs, thereby ensuring that the fixed platform 200 remains horizontal and stable, and that the tools on the support base 300 are accurately aligned with the bolts.

[0027] like Figure 4 As shown, the support rod 100 includes a first adjusting rod 120, a second adjusting rod 130, and a locking assembly 140 for locking the relative positions of the first adjusting rod 120 and the second adjusting rod 130. The first adjusting rod 120 is sleeved on the second adjusting rod 130, and the locking assembly 140 is located at the connection between the first adjusting rod 120 and the second adjusting rod 130. The sleeved design of the first adjusting rod 120 and the second adjusting rod 130 enables rapid and stepless adjustment of the length of the support rod 100, flexibly adapting to different working height requirements. The locking assembly 140 located at the connection can quickly fix the relative positions of the two adjusting rods after adjustment, effectively preventing accidental retraction or displacement during operation, thereby ensuring the stability and reliability of the entire tooling support system and greatly improving the safety and operational efficiency of bolt maintenance work.

[0028] like Figure 5As shown, the locking assembly 140 includes a sleeve 141, an elastic ring 142, a fixing post 143, and an eccentric block 144. The sleeve 141 is located at the connection between the first adjusting rod 120 and the second adjusting rod 130. The elastic ring 142 is sleeved on the sleeve 141. The elastic ring 142 is provided with a movable part 145 and a fixed part 146. The fixing post 143 passes through the movable part 145 and the fixed part 146. The fixed part 146 is fixedly connected to the fixing post 143. The movable part 145 is movably connected to the fixing post 143 and abuts against the eccentric block 144. The fixing post 143 and the eccentric block 144 are rotatably connected. In use, rotating the eccentric block 144 pushes the movable part 145, causing it to slide on the fixed column 143, reducing the distance between the movable part 145 and the fixed part 146. This causes the elastic ring 142 to contract and press against the sleeve 141, generating a strong frictional force to lock the adjusting rod. When unlocking is required, rotating the eccentric block 144 moves the movable part 145 away from the fixed part 146, and the elastic ring 142 automatically resets under the action of the rebound force. The operation is simple and effortless. This structure achieves rigid fixation after stepless adjustment, effectively resisting vibration and impact during operation and preventing the support rod 100 from retracting.

[0029] In addition, in this embodiment, the axis of the eccentric block 144 is perpendicular to the axis of the fixed column 143. The eccentric block 144 is provided with a pin hole 147 offset from its axis. A pin for connecting the fixed column 143 and the eccentric block 144 is provided in the pin hole 147. A handle 148 is fixedly provided on the outer wall of the eccentric block 144. The hinge between the eccentric block 144 and the fixed column 143 is realized by the pin. The operator can easily drive the eccentric block 144 to rotate by rotating the handle 148 on the outer wall. Its eccentric movement can convert a small rotational force into a strong radial clamping force, thereby deforming the elastic ring 142 through the movable part 145 and locking the sleeve 141. This achieves a fast, labor-saving and reliable fixation with a huge locking force, which is particularly suitable for use in high-altitude working environments that require frequent adjustments and bear heavy loads.

[0030] Example 3 This embodiment is the third embodiment of auxiliary tooling for bolt maintenance of wind turbine generator sets. This embodiment is similar to Embodiment 1, except that the support base 300 has a mounting groove on its top. The mounting groove can be one of the following shapes: arc-shaped, V-shaped, or polygonal. Different mounting groove shapes can accommodate different bolt maintenance tools. For example, a torque wrench with a cylindrical grip is more suitable for a V-shaped mounting groove. The inclined surfaces on both sides can support tool shafts of different diameters, enhancing the stability and safety of tool placement.

[0031] The support base 300 is detachably connected to the fixed platform 200, and the support base 300 and / or the fixed platform 200 are provided with magnetic suction areas. The support base 300 and the fixed platform 200 are connected by detachable means such as threaded connection, pin type, and snap-fit ​​type, which can be replaced when different maintenance tools need to be supported. For example, tools with a flat bottom surface such as a tension pump can be supported by a rectangular mounting slot or a flat support base 300 without a mounting slot. When supporting a torque wrench, the support base 300 can also be adjusted accordingly according to its size. The magnetic suction area can be used to place small parts such as bolts and nuts to prevent them from falling off.

[0032] The fixed platform 200 has multiple bolt holes along its circumference, and the support base 300 is detachably connected to these bolt holes via bolts. The bolted connection provides a robust and reliable mechanical connection capable of withstanding heavy tools and ensuring the stability of the support. Simultaneously, this detachable design facilitates the disassembly, storage, and transportation of the tooling, solving the problem of its large overall size and inconvenience in carrying.

[0033] In the specific implementation of the above embodiments, the technical features can be combined in any non-contradictory way. For the sake of brevity, not all possible combinations of the above technical features are described. However, as long as the combination of these technical features is not contradictory, it should be considered to be within the scope of this specification.

[0034] Obviously, the above embodiments of this utility model are merely examples for clearly illustrating this utility model, and are not intended to limit the implementation of this utility model. Those skilled in the art can make other variations or modifications based on the above description. It is neither necessary nor possible to exhaustively describe all embodiments here. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of this utility model should be included within the protection scope of the claims of this utility model.

Claims

1. A wind turbine bolt maintenance work assisting tool characterized by, It includes at least three support rods (100), a fixed platform (200) and a support base (300), wherein the support base (300) is disposed on the upper end surface of the fixed platform (200); a slide rail (210) is disposed on the lower end surface of the fixed platform (200); a sliding block (110) is disposed at the top end of the support rod (100) and the sliding block (110) is slidably disposed in the slide rail (210).

2. The wind turbine generator unit bolt maintenance work assisting tool according to claim 1, characterized by, The slide (210) is provided with a plurality of positioning grooves (211), and the top of the sliding block (110) is provided with a positioning protrusion (111), which can be fully or partially slid into the positioning groove (211).

3. The wind turbine generator unit bolt maintenance work assisting tool according to claim 1, characterized by, The slide (210) is one or a combination of several of the following: a circular slide, a straight slide, or a cross slide.

4. The wind turbine generator unit bolt maintenance work assisting tool according to claim 3, characterized by, The slide (210) includes at least two arc-shaped slides, with the centers of the at least two arc-shaped slides coinciding and having the same ring diameter ratio.

5. The wind turbine generator unit bolt maintenance work assisting tool according to claim 1, characterized by, The slide rail (210) is provided with a mounting hole (212). The width of the slide rail (210) is greater than the diameter of the support rod (100) and smaller than the diameter of the sliding block (110). The diameter of the mounting hole (212) is greater than the diameter of the sliding block (110).

6. The wind turbine bolt maintenance work assisting tool according to any one of claims 1 to 5, characterized in that, The support rod (100) is a telescopic structure with adjustable length.

7. The wind turbine generator unit bolt maintenance work assisting tool according to claim 6, characterized by, The support rod (100) includes a first adjusting rod (120), a second adjusting rod (130), and a locking component (140) for locking the relative positions of the first adjusting rod (120) and the second adjusting rod (130). The first adjusting rod (120) is sleeved on the second adjusting rod (130), and the locking component (140) is disposed at the connection between the first adjusting rod (120) and the second adjusting rod (130).

8. The auxiliary tooling for wind turbine generator bolt maintenance according to claim 7, characterized in that, The locking assembly (140) includes a sleeve (141), an elastic ring (142), a fixing post (143), and an eccentric block (144). The sleeve (141) is disposed at the connection between the first adjusting rod (120) and the second adjusting rod (130). The elastic ring (142) is sleeved on the sleeve (141). The elastic ring (142) is provided with a movable part (145) and a fixed part (146). The fixing post (143) passes through the movable part (145) and the fixed part (146). The fixed part (146) is fixedly connected to the fixing post (143). The movable part (145) is movably connected to the fixing post (143) and abuts against the eccentric block (144). The fixing post (143) is rotatably connected to the eccentric block (144).

9. The wind turbine generator set bolt maintenance work assisting tool according to any one of claims 1 to 5, characterized by, The support base (300) has an installation groove on its top.

10. The wind turbine generator unit bolt maintenance work assisting tool according to claim 9, characterized by, The support base (300) is detachably connected to the fixed platform (200), and the support base (300) and / or the fixed platform (200) are provided with magnetic attraction areas.

Images