Lifting device for maintenance of generator set

By designing a generator set maintenance lifting device, a servo motor drives a screw to achieve rapid lifting and horizontal movement, solving the safety hazards and low efficiency problems in the maintenance process of small and medium-sized wind turbines, and realizing efficient and safe maintenance operations.

CN223674092UActive Publication Date: 2025-12-16HUNAN TECHN COLLEGE OF WATER RESOURCES & HYDROPOWER
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Patent Information

Application Number
CN202520214905.2
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-02-11
Publication Date
2025-12-16
Estimated Expiration
2035-02-11

AI Technical Summary

Technical Problem

During the maintenance of small and medium-sized onshore wind turbines, staff need to carry tools and climb ladders, which poses safety hazards, is physically demanding, and is inefficient.

Method used

A generator set maintenance lifting device was designed, which uses a servo motor to drive a screw to achieve rapid lifting and lowering. Combined with horizontal movement function and guardrail, it provides a stable support structure and is directly connected to the tower for maintenance.

Benefits of technology

It improves maintenance efficiency, reduces safety risks, saves physical effort and time, and ensures the safety and convenience of the maintenance process.

✦ Generated by Eureka AI based on patent content.

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    Figure CN223674092U_ABST
Patent Text Reader

Abstract

The utility model relates to the technical field of lifting devices, in particular to a generator set maintenance lifting device which comprises a wind driven generator body, the wind driven generator body comprises a base, a tower is fixedly installed on the upper surface of the base, a lifting assembly is fixedly installed in the tower, and the lifting assembly comprises a first supporting seat. The first supporting seat is fixedly mounted on the upper surface of the tower, a mounting plate is fixedly mounted on one side of the upper surface of the first supporting seat, a first screw is fixedly mounted in the middle of the mounting seat, a supporting column is fixedly mounted in the middle of the clamp seat, and top supporting seats are fixedly mounted at the top ends of the first screw and the supporting column. The supporting column is rotationally connected with the first servo motor, and a moving assembly is fixedly installed on one side of the first sliding block. The first servo motor drives the first screw rod to rotate, rapid lifting of the moving assembly is achieved, the sliding plate horizontally moves on the working plate, and maintenance personnel can conveniently reach all parts of the wind driven generator to conduct maintenance.
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Description

TECHNICAL FIELD

[0001] The utility model relates to hoist technology field especially relates to a generator set maintenance hoist. BACKGROUND

[0002] The wind driven generator is the mechanical work that will convert wind energy, mechanical work drives rotor rotation, ultimately output ac power equipment, wind driven generator generally has wind wheel, generator, direction regulator, tower, speed limiting safety mechanism and energy storage device etc. component composition, wind driven generator often uninterrupted power generation work, in order to guarantee the stability of power generation work, need to regularly maintain the generator set part of wind driven generator.

[0003] At present, large wind driven generators generally will be provided with automatic lifting elevator, and most small and medium-sized land wind driven generators still use the original ladder, and the staff needs to carry the ladder and maintenance tools in the process of using the ladder, so that the staff needs to repeatedly carry tools to climb, and it is easy to cause safety accidents to carry more tools to climb the ladder in the unprotected state, which causes harm to the health of the staff, and the staff needs to consume more physical strength in the process of climbing, and needs to rest before maintenance when climbing to the specified position for maintenance, which needs to consume more time on maintenance, and further leads to low maintenance efficiency. UTILITY MODEL CONTENT

[0004] The utility model provides the following technical scheme in view of the deficiency of prior art.

[0005] A generator set maintenance hoist, including wind driven generator body, the wind driven generator body includes base, the upper surface of base is fixedly installed with tower, the inside of tower is fixedly installed with lifting assembly, the lifting assembly includes first support seat, the first support seat is fixedly installed on the upper surface of tower, the upper surface one side of first support seat is fixedly installed with mounting plate, the side middle part of mounting plate is fixedly installed with mounting seat, the middle part of mounting seat is fixedly installed with first screw rod, the both sides of mounting plate are fixedly installed with clamp seat, the middle part of clamp seat is fixedly installed with support column, the top of first screw rod and support column is fixedly installed with top support seat, the middle part of top support seat is fixedly installed with first servo motor, the support column is rotatably connected with first servo motor, the middle part of support column and first screw rod is slidably installed with first sliding block, the side of first sliding block is fixedly installed with moving assembly.

[0006] As the improvement of the above technical scheme, the mobile assembly comprises a work plate, one side of the work plate is fixedly connected with the first sliding block, the upper surface of the other side of the work plate is fixedly installed with a guardrail, the upper surface of one side of the work plate is fixedly installed with a sliding rail, one end of the sliding rail is fixedly installed with a second servo motor, the other end of the sliding rail is fixedly installed with a fixed seat, the driving end of the second servo motor is rotatably installed with a second screw rod, the other end of the second screw rod is fixedly connected and rotatably connected with the fixed seat, the middle part of the second screw rod is slidably installed with a second sliding block, and the upper surface of the second sliding block is fixedly installed with a sliding plate.

[0007] As the improvement of the above technical scheme, the other side of the mounting plate is fixedly installed in the middle with a bottom support plate, the both ends of the bottom support plate are clampedly installed with stand columns, the bottom ends of the stand columns are fixedly installed with the first support seat, the top ends of the stand columns are fixedly installed with the top support seat, the middle part of the stand column is clampedly installed with a center support plate, the top end of the stand column is fixedly installed with a top support plate, the outer side of the top support plate is fixedly installed with a ladder, and the bottom of the ladder is fixedly installed with the tower.

[0008] As the improvement of the above technical scheme, the bottom of the sliding plate is fixedly installed with rollers on the both sides, and the rollers are slidably installed on the upper surfaces of the both sides of the sliding rail.

[0009] As the improvement of the above technical scheme, the upper surface of the sliding plate is fixedly installed in the middle with a fixed box, and the inside of the fixed box is detachably installed with a work ladder.

[0010] The utility model discloses the beneficial effect of the following:

[0011] 1. The utility model discloses a first servo motor drive first screw rod rotation realizes the quick lifting of mobile assembly, has greatly shortened the time of maintenance personnel to reach the top of generator unit, has improved maintenance efficiency, and lifting assembly is directly connected on the tower, does not need additional climbing or carrying equipment, and maintenance personnel can reach generator unit through mobile assembly and maintain, saves physical strength and time, and the design of support column and top support seat provides stable support structure, ensures the stability in lifting process, reduces the security risk caused by shaking or inclination, through the drive of second servo motor and second screw rod, sliding plate can move horizontally on work plate, and it is convenient for maintenance personnel to reach each part of wind driven generator and overhaul and maintain, through horizontal movement function, maintenance personnel can reach each part of wind driven generator and overhaul and maintain quickly, do not need to carry out tedious climbing or carrying operation, this not only saves time, but also improves the efficiency of maintenance work, and the addition of guardrail ensures the safety of maintenance personnel in the operation process. ACCURACY

[0012] Figure 1The overall structural diagram of the utility model;

[0013] Figure 2 The wind driven generator body structural diagram of the utility model;

[0014] Figure 3 The lifting assembly structural diagram of the utility model;

[0015] Figure 4 The first sliding block structural diagram of the utility model;

[0016] Figure 5 The Figure 4 The enlarged view of A in the middle.

[0017] Reference signs: 1, wind driven generator body; 11, base; 12, tower; 13, ladder; 2, lifting assembly; 21, first support seat; 22, mounting plate; 23, mounting seat; 231, first screw rod; 24, clamp seat; 241, support column; 25, bottom support plate; 251, stand column; 252, center support plate; 253, top support plate; 26, top support seat; 27, first servo motor; 28, first sliding block; 3, moving assembly; 31, work plate; 311, guardrail; 32, sliding rail; 33, second servo motor; 331, second screw rod; 34, fixing seat; 35, second sliding block; 36, sliding plate; 361, roller; 362, fixed box; 37, work ladder. DETAILED DESCRIPTION

[0018] In order to make the purpose, technical scheme and advantages of the utility model more clear and obvious, the following will make further detailed description to the utility model. It should be understood that the specific embodiments described here are only used to explain the utility model, and are not used to limit the utility model.

[0019] Please refer to Figures 1-5 The utility model provides a technical scheme:

[0020] The utility model provides a kind of generator set maintenance lifting device, including wind power generator body 1, the upper surface of pedestal 11 is fixedly installed with tower 12, the inside of tower 12 is fixedly installed with lifting assembly 2, lifting assembly 2 includes first support seat 21, first support seat 21 is fixedly installed in the upper surface of tower 12, the upper surface side of first support seat 21 is fixedly installed with mounting plate 22, the side middle part of mounting plate 22 is fixedly installed with mounting seat 23, the middle part of mounting seat 23 is fixedly installed with first screw rod 231, the both sides of mounting plate 22 are fixedly installed with clamp seat 24, the middle part of clamp seat 24 is fixedly installed with support column 241, the top of first screw rod 231 and support column 241 is fixedly installed with top support seat 26, the middle part of top support seat 26 is fixedly installed with first servo motor 27, support column 241 is rotatably connected with first servo motor 27, the middle part of support column 241 and first screw rod 231 is slidably installed with first sliding block 28, the side of first sliding block 28 is fixedly installed with moving assembly 3.

[0021] In this embodiment, the base 11 of the wind turbine body 1 is used to fix the installation of the wind turbine, providing stable support, the tower 12 connects the base 11 and the generator set, and the lifting assembly 2 is installed inside for lifting during maintenance. The first support seat 21 of the lifting assembly 2 is fixedly installed on the upper surface of the tower 12 as the support structure of the lifting assembly 2. The mounting plate 22 is fixedly installed on one side of the upper surface of the first support seat 21 for installing the lifting mechanism. The mounting seat 23 is fixedly installed on one side of the middle of the mounting plate 22 for installing the first screw rod 231. The clamp seat 24 is fixedly installed on both sides of the mounting plate 22 for installing the support column 241. The support column 241 provides stability and support force for the lifting mechanism. The top support seat 26 is fixedly installed on the top end of the support column 241 and the first screw rod 231 for installing the first servo motor 27. The first servo motor 27 drives the first screw rod 231 to realize the lifting function and provides the power source. The first sliding block 28 is slidingly installed on the middle of the support column 241 and the first screw rod 231 for connecting and moving the moving assembly 3. The moving assembly 3 is used to carry maintenance personnel, tools and materials and provides safety protection. When the first servo motor 27 starts, it drives the first screw rod 231 to rotate. Since the first sliding block 28 is connected with the first screw rod 231 and the support column 241 in a sliding manner, when the first screw rod 231 or the support column 241 rotates, the first sliding block 28 moves along its axial direction. The moving assembly 3 is fixedly connected with the first sliding block 28, so when the first sliding block 28 moves, the moving assembly 3 also moves accordingly, thereby realizing the lifting of the generator set. The first servo motor 27 drives the first screw rod 231 to rotate, realizing the rapid lifting of the moving assembly 3, greatly shortening the time for the maintenance personnel to reach the top of the generator set and improving the maintenance efficiency. The lifting assembly 2 is directly connected to the tower 12 without the need for additional climbing or carrying equipment. The maintenance personnel can directly reach the generator set through the moving assembly 3 for maintenance, saving physical strength and time. The design of the support column 241 and the top support seat 26 provides a stable support structure, ensuring the stability during lifting and reducing the safety risk caused by shaking or tilting.

[0022] Specifically, the moving assembly 3 includes a working plate 31, one side of the working plate 31 is fixedly connected with the first sliding block 28, the other side of the working plate 31 is fixedly installed with a guardrail 311 on the upper surface, one side of the upper surface of the working plate 31 is fixedly installed with a sliding rail 32, one end of the sliding rail 32 is fixedly installed with a second servo motor 33, the other end of the sliding rail 32 is fixedly installed with a fixing seat 34, the driving end of the second servo motor 33 is rotatably installed with a second screw rod 331, the other end of the second screw rod 331 is fixedly connected with the fixing seat 34 in a rotatable manner, the middle of the second screw rod 331 is slidingly installed with a second sliding block 35, and the upper surface of the second sliding block 35 is fixedly installed with a sliding plate 36.

[0023] In this embodiment, the workboard 31 is the basis of the entire moving assembly 3, one side of which is fixedly connected with the first sliding block 28, thereby realizing stable connection with the lifting assembly 2; the other side of the workboard 31 is fixedly installed with a guardrail 311 on the upper surface, which provides an important guarantee for the safety of the maintenance personnel during operation; the slide rail 32 is fixedly installed on one side of the upper surface of the workboard 31, thereby providing support for the installation of the second servo motor 33 and the second screw rod 331; the design of the slide rail 32 enables the second sliding block 35 to slide stably thereon, thereby realizing horizontal movement of the sliding plate 36; the second servo motor 33 serves as a driving component, and the driving end thereof is rotatably installed with the second screw rod 331; by controlling the start and stop of the second servo motor 33 and the rotation direction, the horizontal movement speed and direction of the sliding plate 36 can be accurately controlled; one end of the second screw rod 331 is rotatably connected with the driving end of the second servo motor 33, and the other end is fixedly connected with the fixed seat 34; when the second servo motor 33 is started, the second screw rod 331 will rotate, thereby pushing the second sliding block 35 to slide on the slide rail 32 through the screw thread effect; the second sliding block 35 is slidingly installed in the middle of the second screw rod 331 and is fixedly connected with the sliding plate 36; with the rotation of the second screw rod 331, the second sliding block 35 will move horizontally along the slide rail 32, thereby driving the sliding plate 36 to move; the sliding plate 36 serves as an operation platform for the maintenance personnel and can carry personnel, tools and materials; through the driving of the second servo motor 33 and the second screw rod 331, the sliding plate 36 can move horizontally on the workboard 31, which facilitates the maintenance personnel to reach each part of the wind turbine for repair and maintenance; through the horizontal movement function, the maintenance personnel can quickly reach each part of the wind turbine for repair and maintenance without the need for complicated climbing or carrying operations, which not only saves time but also improves the efficiency of maintenance work; the addition of the guardrail 311 ensures the safety of the maintenance personnel during operation.

[0024] Specifically, the other side of the mounting plate 22 is fixedly installed with a bottom support plate 25 in the middle, both ends of the bottom support plate 25 are clamped and installed with stand columns 251, the bottom ends of the stand columns 251 are fixedly installed with the first support seat 21, the top ends of the stand columns 251 are fixedly installed with the top support seat 26, the middle of the stand columns 251 is clamped and installed with a center support plate 252, the top end of the stand column 251 is fixedly installed with a top support plate 253, and the outer side of the top support plate 253 is fixedly installed with the ladder 13, and the bottom of the ladder 13 is fixedly installed with the tower 12.

[0025] In this embodiment, the bottom support plate 25 is fixedly installed in the middle of the other side of the mounting plate 22 and is clamped and installed with the stand 251, thereby providing additional bottom support for the lifting assembly 2 and enhancing the stability of the overall structure. The stand 251, as the main support structure, extends from the bottom support plate 25 to the top support base 26, thereby supporting the lifting mechanism and connecting the ladder 13 through the top support plate 253, forming a complete support system. The center support plate 252 is clamped and installed in the middle of the stand 251, thereby further enhancing the stability and rigidity of the stand 251 and preventing deformation or damage caused by excessive stress. The top support plate 253 is fixedly installed at the top end of the stand 251, thereby providing a mounting base for the top support base 26 and providing a safe passage for the wind turbine body 1 through the ladder 13 fixedly installed on the outside of the top support plate 253 and connected with the tower 12. The ladder 13 provides a safe passage for maintenance personnel from the ground to the top of the generator set, thereby ensuring that the maintenance personnel can quickly and safely reach the ground when the lifting assembly 2 fails or needs to be evacuated urgently.

[0026] Specifically, the bottom two sides of the sliding plate 36 are fixedly installed with the rollers 361, which are slidingly installed on the upper surfaces of the two sides of the slide rail 32.

[0027] In this embodiment, the rollers 361 are fixedly installed on the bottom two sides of the sliding plate 36, which are in sliding contact with the upper surfaces of the two sides of the slide rail 32, thereby providing smooth sliding support for the sliding plate 36 and reducing the friction between the sliding plate 36 and the slide rail 32, so that the sliding plate 36 can move horizontally along the slide rail 32 more easily. The use of the rollers 361 reduces the direct contact area between the sliding plate 36 and the slide rail 32, thereby reducing wear and tear. Not only does this prolong the service life of the sliding plate 36 and the slide rail 32, but it also reduces noise and vibration caused by wear and tear.

[0028] Specifically, the upper surface of the sliding plate 36 is fixedly installed with the fixed box 362 in the middle, and the work ladder 37 is detachably installed inside the fixed box 362.

[0029] In this embodiment, the fixed box 362, as the installation base of the work ladder 37, is firmly fixed on the upper surface of the sliding plate 36 in the middle, thereby providing a closed or semi-closed space for accommodating and supporting the work ladder 37 and ensuring the stability and safety of the work ladder 37 during installation and use. The work ladder 37 is designed to be detachably installed inside the fixed box 362, which can be easily installed or removed as needed, which is particularly useful during the maintenance of the wind turbine, for example, when tools, materials or maintenance personnel need to be quickly transported to different heights of the wind turbine.

[0030] The above embodiments are only used to illustrate the technical solutions of the present application, and are not limited thereto.

Claims

1. A generator set maintenance lifting device, comprising a wind turbine generator body (1), wherein the wind turbine generator body (1) includes a base (11), and a tower (12) is fixedly installed on the upper surface of the base (11), characterized in that: A lifting assembly (2) is fixedly installed inside the tower (12). The lifting assembly (2) includes a first support base (21), which is fixedly installed on the upper surface of the tower (12). A mounting plate (22) is fixedly installed on one side of the upper surface of the first support base (21). A mounting seat (23) is fixedly installed in the middle of one side of the mounting plate (22). A first screw (231) is fixedly installed in the middle of the mounting seat (23). Clamp seats (24) are fixedly installed on both sides of the mounting plate (22). A support column (241) is fixedly installed in the middle of the clamp seat (24). A top support seat (26) is fixedly installed at the top of both the first screw (231) and the support column (241). A first servo motor (27) is fixedly installed in the middle of the top support seat (26). The support column (241) and the first servo motor (27) are rotatably connected. A first slider (28) is slidably installed in the middle of the support column (241) and the first screw (231). A moving component (3) is fixedly installed on one side of the first slider (28).

2. The generator set maintenance lifting device according to claim 1, characterized in that: The moving component (3) includes a working plate (31), one side of which is fixedly connected to the first slider (28), and a guardrail (311) is fixedly installed on the upper surface of the other side of the working plate (31). A slide rail (32) is fixedly installed on one side of the upper surface of the working plate (31). A second servo motor (33) is fixedly installed at one end of the slide rail (32), and a fixed seat (34) is fixedly installed at the other end of the slide rail (32). A second screw (331) is rotatably installed at the drive end of the second servo motor (33), and the other end of the second screw (331) is fixedly and rotatably connected to the fixed seat (34). A second slider (35) is slidably installed in the middle of the second screw (331), and a sliding plate (36) is fixedly installed on the upper surface of the second slider (35).

3. The generator set maintenance lifting device according to claim 1, characterized in that: A bottom support plate (25) is fixedly installed on the middle of the other side of the mounting plate (22). Columns (251) are snapped onto both ends of the bottom support plate (25). The bottom end of the column (251) is fixedly installed with the first support seat (21). The top end of the column (251) is fixedly installed with the top support seat (26). A center support plate (252) is snapped onto the middle of the column (251). A top support plate (253) is fixedly installed at the top end of the column (251). A ladder (13) is fixedly installed on the outer side of the top support plate (253). The bottom of the ladder (13) is fixedly installed with the tower (12).

4. A generator set maintenance lifting device according to claim 2, characterized in that: Rollers (361) are fixedly installed on both sides of the bottom of the sliding plate (36), and the rollers (361) are slidably installed on both sides of the upper surface of the slide rail (32).

5. A generator set maintenance lifting device according to claim 4, characterized in that: A fixed box (362) is fixedly installed in the middle of the upper surface of the sliding plate (36), and a working ladder (37) is detachably installed inside the fixed box (362).