A wind turbine yaw gear box replacement suspension tool

Abstract

The utility model relates to wind generating set technical field discloses a wind generating set yaw gear box replacement suspension tool, including elevating gear and support frame body, the bottom threaded connection of support frame body has the connecting base, elevating gear is installed in the inside of support frame body, and elevating gear includes frequency conversion motor, adjusting screw rod, suspension assembly and limit board, and frequency conversion motor fixedly connected in the top surface of adjusting screw rod, suspension assembly is threadedly connected in the surface of adjusting screw rod, and the left part of suspension assembly is threadedly connected in limit board. The wind generating set yaw gear box replacement suspension tool, through being provided with the metal sheet, adjusting threaded sleeve no. 1, threaded rod no. 1 and lifting hook, the nut rotates on the surface of threaded rod no. 1, adjusting threaded sleeve no. 1 and the metal sheet are locked fixed through threaded rod no. 1, can make the lifting hook and the metal sheet separate adjusting threaded sleeve no. 1, thereby can dismantle and replace the lifting hook of different specifications, can increase the use time of lifting hook.

Description

Technical Field

[0001] This utility model relates to the field of wind turbine generator technology, specifically to a suspension fixture for replacing the yaw gearbox of a wind turbine generator. Background Technology

[0002] The yaw gearbox of a wind turbine is a key component that enables the nacelle to adjust to the wind. The key function of the yaw gearbox is to ensure that the wind turbine nacelle can rotate with the wind direction, so that the blades are always facing the wind, in order to maximize wind energy capture and thus improve power generation efficiency.

[0003] The prior art, disclosed in announcement number CN216588955U, describes a suspension fixture for replacing the yaw gearbox of a wind turbine generator set. Belonging to the field of suspension device technology, its key technical features include an L-shaped plate with a rotating sleeve rotatably connected to its inner top. A support arm is fixedly connected to the upper surface of the base, and the top of the cantilever is fixedly connected to the interior of the rotating sleeve. The suspension device is movably connected to the outer wall of the cantilever, and a lifting lug for suspending a chain hoist is fixedly connected to the right side of the outer wall of the sleeve. This fixture measures the space above and to the side of the yaw gearbox in the nacelle. Through chain hoisting and rotation operations, the gearbox output stage is lifted and the platform is placed, replacing the current purely manual operation of the yaw gearbox. This ensures the personal safety of maintenance personnel during operation, making the source of accidental mechanical injury controllable and avoiding uncontrollable injuries such as those caused by heavy objects. Furthermore, mechanization reduces the manpower required for operation, lowers maintenance costs, and significantly improves operational efficiency, making it suitable for widespread adoption.

[0004] The outer right side of the aforementioned sleeve is fixedly connected to a lifting lug for suspending the chain guide. When replacing the lifting lug, it is necessary to cut the connection between the sleeve and the lifting lug, which will cause damage to the sleeve and the lifting lug and require a lot of time for repair. Utility Model Content

[0005] The purpose of this invention is to provide a suspension fixture for replacing the yaw gearbox of a wind turbine generator set, so as to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a suspension fixture for replacing the yaw gearbox of a wind turbine generator set, comprising a lifting device and a support frame, wherein the bottom of the support frame is threadedly connected to a connecting base, and the lifting device is installed inside the support frame.

[0007] The lifting device includes a variable frequency motor, an adjusting screw, a suspension assembly, and a limiting plate. The variable frequency motor is fixedly connected to the top surface of the adjusting screw, the suspension assembly is threadedly connected to the surface of the adjusting screw, and the limiting plate is threadedly connected to the left side of the suspension assembly.

[0008] The suspension assembly includes a sliding unit and an adjustment unit, which are arranged from left to right.

[0009] The adjustment unit includes an adjustment threaded sleeve one, a threaded rod one fixedly connected to the right side surface of the adjustment threaded sleeve one, an adjustment threaded sleeve two threadedly connected to the left side of the adjustment threaded sleeve one, a metal plate connected to the right side surface of the adjustment threaded sleeve one, a hook fixedly connected to the right side surface of the metal plate, and a protrusion fixedly connected to the left side surface of the metal plate.

[0010] Preferably, the sliding unit includes a plug plate, a threaded rod II is fixedly connected to the left side surface of the plug plate, and a movable roller is movably connected to the surface of the threaded rod II.

[0011] Preferably, the limiting plate is movably connected to the left side surface of the movable roller, and the limiting plate is movably connected to the surface of the threaded rod II. The nut rotates on the surface of the threaded rod II, and the nut and the threaded rod II can lock and fix the limiting plate, the movable roller and the plug plate.

[0012] Preferably, the movable roller is fixedly connected to the inner wall of the support frame, and the plug plate is slidably connected to the surface of the support frame. The plug plate and the movable roller are on the inner wall surface of the support frame, making the movement of the plug plate smoother.

[0013] Preferably, the right side of the adjusting threaded sleeve is provided with a groove, which is sleeved on the surface of the protrusion. The adjusting threaded sleeve and the protrusion are inserted and fixed together, which can determine the position of the metal plate and the hook.

[0014] Preferably, the metal plate is movably connected to the surface of the threaded rod, and the threaded rod and nut can lock and fix the metal plate and the adjusting threaded sleeve, which facilitates the disassembly and replacement of the metal plate and the hook and can protect the safety of the metal plate and the hook.

[0015] Preferably, the plug plate is threadedly connected to the left side of the adjusting threaded sleeve two, and the bolt can lock and fix the plug plate and the adjusting threaded sleeve two, thereby allowing the adjusting threaded sleeve two to be detached from the plug plate, making it convenient to disassemble and replace the adjusting threaded sleeve two.

[0016] Preferably, the second adjusting threaded sleeve is threaded to the surface of the adjusting screw, and the first adjusting threaded sleeve is threaded to the surface of the adjusting screw. The adjusting screw allows the second adjusting threaded sleeve and the first adjusting threaded sleeve to move up and down, enabling the suspension operation of the yaw gearbox of the wind turbine generator set at different positions.

[0017] Preferably, the variable frequency motor is mounted on the top surface of the support frame, the adjusting screw is mounted inside the support frame, and the connecting base is mounted on the bottom of the adjusting screw. The support frame and the connecting base can determine the positions of the variable frequency motor and the adjusting screw.

[0018] Compared with the prior art, the beneficial effects of this utility model are:

[0019] 1. The suspension fixture for replacing the yaw gearbox of this wind turbine generator set is equipped with a metal plate, an adjusting threaded sleeve, a threaded rod, and a hook. The nut rotates on the surface of the threaded rod, and the adjusting threaded sleeve and the metal plate are locked and fixed by the threaded rod. This allows the hook and the metal plate to be disengaged from the adjusting threaded sleeve, thereby enabling the disassembly and replacement of hooks of different specifications, increasing the service life of the hooks, and thus increasing the service life of the device.

[0020] 2. The suspension fixture for replacing the yaw gearbox of this wind turbine generator set is equipped with a movable roller, a limit plate, a movable roller, and a plug-in plate. The plug-in plate and the limit plate are locked and fixed by the threaded rod two. The position of the adjusting threaded sleeve two can be determined, which facilitates the adjustment of the positions of adjusting threaded sleeve two and adjusting threaded sleeve one. It can maintain the stability of adjusting threaded sleeve two and adjusting threaded sleeve one, thereby increasing the service life of the device. Attached Figure Description

[0021] Figure 1 This is a three-dimensional schematic diagram of the entire utility model;

[0022] Figure 2 This is a three-dimensional schematic diagram of the suspension component of this utility model;

[0023] Figure 3 This is a three-dimensional schematic diagram of the adjusting threaded sleeve one, the threaded rod one, and the adjusting threaded sleeve two of this utility model;

[0024] Figure 4 This is a three-dimensional schematic diagram of the metal plate, protrusion, and hook of this utility model.

[0025] In the diagram: 1. Lifting device; 11. Variable frequency motor; 12. Adjusting screw; 13. Suspension assembly; 131. Metal plate; 132. Protrusion; 133. Hook; 134. Adjusting threaded sleeve one; 135. Threaded rod one; 136. Adjusting threaded sleeve two; 137. Plug-in plate; 138. Moving roller; 139. Threaded rod two; 14. Limiting plate; 2. Support frame; 3. Connecting base. Detailed Implementation

[0026] 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.

[0027] Please see Figure 1-4 The present invention provides the following technical solution:

[0028] A suspension fixture for replacing the yaw gearbox of a wind turbine generator set includes a lifting device 1 and a support frame 2. The bottom of the support frame 2 is threadedly connected to a connecting base 3, and the lifting device 1 is installed inside the support frame 2.

[0029] The lifting device 1 includes a variable frequency motor 11, an adjusting screw 12, a suspension assembly 13, and a limiting plate 14. The variable frequency motor 11 is fixedly connected to the top surface of the adjusting screw 12. The variable frequency motor 11 is installed on the top surface of the support frame 2. The adjusting screw 12 is installed inside the support frame 2. The connecting base 3 is installed at the bottom of the adjusting screw 12. The support frame 2 and the connecting base 3 can determine the position of the variable frequency motor 11 and the adjusting screw 12. The suspension assembly 13 is threadedly connected to the surface of the adjusting screw 12. The limiting plate 14 is threadedly connected to the left side of the suspension assembly 13.

[0030] The suspension assembly 13 includes a sliding unit and an adjustment unit, which are arranged from left to right.

[0031] The adjustment unit includes an adjusting threaded sleeve 134. A threaded rod 135 is fixedly connected to the right side surface of the adjusting threaded sleeve 134. An adjusting threaded sleeve 136 is threadedly connected to the left side of the adjusting threaded sleeve 134. The adjusting threaded sleeve 136 is threadedly connected to the surface of the adjusting screw 12, and the adjusting threaded sleeve 134 is threadedly connected to the surface of the adjusting screw 12. The adjusting screw 12 allows the adjusting threaded sleeve 136 and the adjusting threaded sleeve 134 to move up and down, enabling suspension operations on the yaw gearbox of the wind turbine generator at different positions. A metal plate 131 is connected to the right side surface of the adjusting threaded sleeve 134. A hook 133 is fixedly connected to the surface of the metal plate 131, which is movably connected to the surface of the threaded rod 135. The threaded rod 135 and the nut can lock and fix the metal plate 131 and the adjusting threaded sleeve 134, making it convenient to disassemble and replace the metal plate 131 and the hook 133, and protecting the safety of the metal plate 131 and the hook 133. A protrusion 132 is fixedly connected to the left side surface of the metal plate 131, and a groove is opened on the right side of the adjusting threaded sleeve 134. The groove fits into the surface of the protrusion 132, and the adjusting threaded sleeve 134 and the protrusion 132 are inserted and fixed, which can determine the position of the metal plate 131 and the hook 133.

[0032] The sliding unit includes a plug-in plate 137, on the left side of which is threadedly connected to an adjusting threaded sleeve 136. Bolts can lock the plug-in plate 137 and the adjusting threaded sleeve 136 together, allowing the adjusting threaded sleeve 136 to be disengaged from the plug-in plate 137 for easy removal and replacement. A threaded rod 139 is fixedly connected to the left side surface of the plug-in plate 137, and a movable roller 138 is movably connected to the surface of the threaded rod 139. The movable roller 138 is fixedly connected to a support. The inner wall of the frame 2 has a plug-in plate 137 that is slidably connected to the surface of the support frame 2. The plug-in plate 137 and the movable roller 138 are on the inner wall surface of the support frame 2, making the movement of the plug-in plate 137 smoother. The limiting plate 14 is movably connected to the left side surface of the movable roller 138 and the limiting plate 14 is movably connected to the surface of the threaded rod 139. The nut rotates on the surface of the threaded rod 139. The nut and the threaded rod 139 can lock and fix the limiting plate 14, the movable roller 138 and the plug-in plate 137.

[0033] When in use, rotate the bolt, and the bolt will disengage from the plug plate 137 and the adjusting threaded sleeve 136. At this time, pull the plug plate 137 downward and slide the plug plate 137 on the surface of the support frame 2, so that the plug plate 137 can disengage from the adjusting threaded sleeve 136.

[0034] Rotating the bolt disengages the adjusting threaded sleeve 136 and the adjusting threaded sleeve 134, causing them to separate from the adjusting screw 12. This allows the adjusting threaded sleeve 136 and the adjusting threaded sleeve 134 to be disassembled for maintenance, thus extending their service life.

[0035] Rotate the nut, and the nut will rotate on the surface of the threaded rod 135, causing the connection between the adjusting threaded sleeve 134 and the metal plate 131 to loosen.

[0036] Pulling the hook 133 to the right moves the hook 133 to the right, which in turn moves the metal plate 131 to the right. The metal plate 131 then moves the protrusion 132 to the right, causing the protrusion 132 to disengage from the right groove of the adjusting threaded sleeve 134. This allows the hook 133 and the metal plate 131 to be disassembled and replaced, and hooks 133 of different specifications can be reinstalled.

[0037] When the variable frequency motor 11 is started, the rotor of the variable frequency motor 11 drives the adjusting screw 12 to rotate. The adjusting screw 12 can drive the adjusting threaded sleeve 134 and the adjusting threaded sleeve 136 to move upward. When the adjusting threaded sleeve 136 moves upward, it can drive the plug plate 137 to move upward.

[0038] The plug plate 137 drives the movable roller 138 to move upward through the threaded rod 139. The movable roller 138 moves upward on the inner wall surface of the support frame 2, allowing the threaded rod 139 to move upward with the limiting plate 14. The plug plate 137 and the adjusting threaded sleeve 136 slide on the surface of the support frame 2, which can adjust the position of the hook 133.

[0039] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to the embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A suspension fixture for replacing the yaw gearbox of a wind turbine generator set, comprising a lifting device (1) and a support frame (2), characterized in that: The bottom of the support frame (2) is threadedly connected to a connecting base (3), and the lifting device (1) is installed inside the support frame (2); The lifting device (1) includes a variable frequency motor (11), an adjusting screw (12), a suspension assembly (13), and a limiting plate (14). The variable frequency motor (11) is fixedly connected to the top surface of the adjusting screw (12), the suspension assembly (13) is threadedly connected to the surface of the adjusting screw (12), and the limiting plate (14) is threadedly connected to the left side of the suspension assembly (13). The suspension assembly (13) includes a sliding unit and an adjustment unit, which are arranged from left to right. The adjustment unit includes an adjustment threaded sleeve one (134), a threaded rod one (135) is fixedly connected to the right side surface of the adjustment threaded sleeve one (134), an adjustment threaded sleeve two (136) is threadedly connected to the left side of the adjustment threaded sleeve one (134), a metal plate (131) is connected to the right side surface of the adjustment threaded sleeve one (134), a hook (133) is fixedly connected to the right side surface of the metal plate (131), and a protrusion (132) is fixedly connected to the left side surface of the metal plate (131).

2. The suspension fixture for replacing the yaw gearbox of a wind turbine generator set according to claim 1, characterized in that: The sliding unit includes a plug plate (137), and a threaded rod (139) is fixedly connected to the left side surface of the plug plate (137). A movable roller (138) is movably connected to the surface of the threaded rod (139).

3. The suspension fixture for replacing the yaw gearbox of a wind turbine generator set according to claim 2, characterized in that: The limiting plate (14) is movably connected to the left side surface of the movable roller (138), and the limiting plate (14) is movably connected to the surface of the threaded rod (139).

4. The suspension fixture for replacing the yaw gearbox of a wind turbine generator set according to claim 3, characterized in that: The movable roller (138) is fixedly connected to the inner wall of the support frame (2), and the plug plate (137) is slidably connected to the surface of the support frame (2).

5. The suspension fixture for replacing the yaw gearbox of a wind turbine generator set according to claim 4, characterized in that: As stated above.

6. The suspension fixture for replacing the yaw gearbox of a wind turbine generator set according to claim 5, characterized in that: The right side of the adjusting threaded sleeve (134) has a groove, which is fitted onto the surface of the protrusion (132).

7. The suspension fixture for replacing the yaw gearbox of a wind turbine generator set according to claim 6, characterized in that: The metal plate (131) is movably connected to the surface of the threaded rod (135).

8. The suspension fixture for replacing the yaw gearbox of a wind turbine generator set according to claim 7, characterized in that: The plug plate (137) is threadedly connected to the left side of the adjusting threaded sleeve (136).

9. The suspension fixture for replacing the yaw gearbox of a wind turbine generator set according to claim 8, characterized in that: The second adjusting threaded sleeve (136) is threadedly connected to the surface of the adjusting screw (12), and the first adjusting threaded sleeve (134) is threadedly connected to the surface of the adjusting screw (12).

10. The suspension fixture for replacing the yaw gearbox of a wind turbine generator set according to claim 9, characterized in that: The variable frequency motor (11) is installed on the top surface of the support frame (2), the adjusting screw (12) is installed inside the support frame (2), and the connecting base (3) is installed at the bottom of the adjusting screw (12).

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