A yaw motor dismounting tool

Abstract

This invention relates to the field of wind power yaw motor technology, specifically disclosing a disassembly fixture for a yaw motor. The fixture includes a tower column, a toothed ring on the top sidewall of the tower column, a base plate connected to the top of the tower column, yaw drive motors on both sides of the top of the base plate, yaw drive gears at the bottom of the yaw drive motors, support legs connected to the top of the base plate, a retractable rod connected to one end of each support leg, a lifting column at one end of the retractable rod, a traction rope passing through the middle of the lifting column, a cable take-up seat at the top of the lifting column, and a rotating shaft connected to one side of the cable take-up seat. The support legs and lifting column in this device allow the motor to be stored and carried to the base plate, where it is then placed in conjunction with the yaw drive motor. The traction rope in the lifting column pulls the yaw drive motor, thus facilitating disassembly and lifting even in confined spaces.

Description

Technical Field

[0001] This invention relates to the field of wind power yaw motor technology, and more specifically, to a disassembly fixture for a yaw motor. Background Technology

[0002] A yaw motor is a type of motor used in wind power generation to rotate the nacelle and change the direction of the blades. By rotating the yaw motor, the orientation of the entire nacelle is changed, allowing the blades to always face the direction the wind is blowing.

[0003] However, due to prolonged use, the existing yaw motors tend to have their connecting parts stuck together. The friction caused by the tight contact makes disassembly extremely difficult. Furthermore, the limited space in the engine room makes it difficult for personnel to exert force, and some mechanical components are also inconvenient to place in the cramped engine room, thus making it difficult to disassemble the yaw motor. Summary of the Invention

[0004] The purpose of this invention is to provide a disassembly fixture for a yaw motor, which solves the problem that it is difficult for construction personnel to carry out construction operations on the yaw motor in the limited space of the engine compartment, and that it is difficult to apply force to dismantle the yaw motor due to the lack of space to place mechanical devices.

[0005] This invention is achieved through the following technical solution: This invention provides a disassembly fixture for a yaw motor, including a tower column, a gear ring on the top side wall of the tower column, a base plate connected to the top of the tower column, yaw drive motors on both sides of the top of the base plate, yaw drive gears at the bottom of the yaw drive motors, support legs connected to the top of the base plate, a retractable rod connected to one end of the support legs, a lifting column at one end of the retractable rod, a traction rope penetrating through the middle of the lifting column, a cable take-up seat at the top of the lifting column, and a rotating shaft connected to one side of the cable take-up seat.

[0006] Preferably, the support leg is connected to both sides of the lifting column via a retractable rod at one end.

[0007] Preferably, one end of the traction rope passing through the middle of the lifting column is connected to the circular roller in the middle of the take-up seat.

[0008] Preferably, the rotating shaft further includes a timing belt and a mating gear, with the timing belt connected to the side wall of the rotating shaft and the mating gear connected to the bottom center of the timing belt.

[0009] Preferably, a helical gear is also provided on one side of the mating gear.

[0010] Preferably, the lifting column further includes a lifting groove, a lifting plate, a fitting groove, and a transmission gear. The lifting groove is located on both sides of the lifting column, the lifting plate is connected to the middle of the lifting groove, the fitting groove is located on the top of the support leg, and the transmission gear is connected to the middle of the lifting column.

[0011] Preferably, the lifting groove also includes a rotating lead screw, which passes through one end of the lifting plate, and the side wall of the rotating lead screw is threadedly matched with the inner wall of the through hole at one end of the lifting plate.

[0012] Preferably, a gear is provided near the top side wall of the rotating screw, and the protruding parts on both sides of the transmission gear mesh with the gear on the side wall of the rotating screw in the lifting groove.

[0013] Preferably, the lifting plate further includes a sliding shaft and a displacement groove. The displacement groove is located at the bottom of the lifting plate, the sliding shaft is connected in the displacement groove, the bottom of the sliding shaft cooperates with the fitting groove, and the bottom of the sliding shaft is connected to the bottom of the fitting groove by a spring.

[0014] Preferably, the transmission gear further includes a helical gear, which is disposed on the top of the transmission gear and meshes with a helical gear on one side of the mating gear.

[0015] The technical solution of the present invention has at least the following advantages and beneficial effects: 1. The device can be stored and carried to the bottom plate by the support legs and lifting column. Then, it is placed in conjunction with the yaw drive motor. The yaw drive motor is lifted and pulled by the traction rope in the lifting column, so that it is convenient to lift and disassemble even in narrow spaces.

[0016] 2. The device is also equipped with a lifting plate. When the traction rope in the control lifting column is wound and pulled, the control winding roller rotates and drives the lifting plate to move downward, so that the sliding axial fitting groove contracts and the spring in it is compressed. Then, the restoring force generated by the spring compression will act on the support leg, generating a downward force, so that the support leg can be pressed and stabilized by human force with less effort. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the overall structure of the present invention.

[0018] Figure 2 This is a schematic diagram of the overall structure of the support leg of the present invention.

[0019] Figure 3 This is a partial structural diagram of the support leg of the present invention.

[0020] Figure 4 For the present invention Figure 3 Enlarged diagram of point A in the middle.

[0021] Figure 5 This is a side view of the lifting column structure of the present invention.

[0022] Figure 6 This is a frontal cross-sectional view of the lifting plate and supporting leg of the present invention.

[0023] Reference numerals: 1-Tower column, 101-Gear ring, 2-Base plate, 201-Yaw drive motor, 202-Yaw drive gear, 3-Support leg, 301-Retracting rod, 302-Lifting column, 3021-Cable take-up seat, 3022-Rotating shaft, 3023-Synchronous belt, 3024-Matching gear, 303-Lifting groove, 3031-Rotating screw, 304-Lifting plate, 3041-Sliding shaft, 3042-Displacement groove, 305-Matching groove, 306-Transmission gear, 3061-Helical gear. Detailed Implementation

[0024] The following is combined Figures 1 to 6 The present invention will be described in detail below.

[0025] A disassembly fixture for a yaw motor includes a tower column 1. A gear ring 101 is provided on the top side wall of the tower column 1. A base plate 2 is connected to the top of the tower column 1. Yaw drive motors 201 are provided on both sides of the top of the base plate 2. A yaw drive gear 202 is provided at the bottom of the yaw drive motors 201. A support leg 3 is connected to the top of the base plate 2. A retractable rod 301 is connected to one end of the support leg 3. A lifting column 302 is provided at one end of the retractable rod 301. A traction rope is connected through the middle of the lifting column 302. A take-up seat 3021 is provided at the top of the lifting column 302. A rotating shaft 3022 is connected to one side of the take-up seat 3021.

[0026] First, when it is necessary to adjust the orientation of the base plate 2 on the tower column 1 to change the orientation of the wind turbine blades, the yaw drive motor 201 on one side drives the yaw drive gear 202 to start rotating. When the yaw drive gear 202 rotates, it meshes with the gear ring 101, causing the entire base plate 2 to rotate around the tower column 1 as the axis, thus changing the orientation of the base plate 2. The yaw drive gear 202 can make the base plate 2 rotate.

[0027] Furthermore, the support leg 3 is connected to both sides of the lifting column 302 via a retractable rod 301 at one end, and one end of the traction rope passing through the middle of the lifting column 302 is connected to the round roller in the middle of the take-up seat 3021.

[0028] Furthermore, the rotating shaft 3022 also includes a timing belt 3023 and a mating gear 3024. The timing belt 3023 is connected to the side wall of the rotating shaft 3022, and the mating gear 3024 is connected to the bottom middle part of the timing belt 3023. A helical gear is also provided on one side of the mating gear 3024. The lifting column 302 also includes a lifting groove 303, a lifting plate 304, a fitting groove 305, and a transmission gear 306. The lifting groove 303 is provided on both sides of the lifting column 302, the lifting plate 304 is connected to the middle of the lifting groove 303, the fitting groove 305 is provided on the top of the support leg 3, and the transmission gear 306 is connected to the middle of the lifting column 302. The lifting groove 303 also includes a rotating screw 3031, which passes through one end of the lifting plate 304. The rotating screw 3031 has a side... The inner wall of the through hole at one end of the wall and the lifting plate 304 is threaded. The rotating screw 3031 is provided with a gear near the top side wall, and the protruding parts on both sides of the transmission gear 306 mesh with the gear on the side wall of the rotating screw 3031 in the lifting groove 303. The lifting plate 304 also includes a sliding shaft 3041 and a displacement groove 2042. The displacement groove 2042 is provided at the bottom of the lifting plate 304. The sliding shaft 3041 is connected in the displacement groove 2042. The bottom of the sliding shaft 3041 is engaged with the fitting groove 305, and the bottom of the sliding shaft 3041 is connected to the bottom of the fitting groove 305 by a spring. The transmission gear 306 also includes a helical gear 3061. The helical gear 3061 is provided at the top of the transmission gear 306 and meshes with the helical gear on one side of the mating gear 3024.

[0029] When it is necessary to disassemble the yaw drive motor 201, because the connection time of the yaw drive motor 201 is too long, the connection will stick and tighten. Therefore, during disassembly, the support legs 3 are first placed on both sides of the yaw drive motor 201. At the same time, the spacing of the support legs 3 can be adjusted by the retractable rod 301 so that motors of different sizes can be placed between the support legs 3. Then, the traction rope connected to the lifting column 302 at the top of the support legs 3 is tied to the yaw drive motor 201. Then, the crankshaft handle on the take-up seat 3021 at one end of the traction rope is manually controlled to control the rotation of the rotating shaft 3022, thereby causing the rotating roller in the middle of the take-up seat 3021 to rotate. The traction rope is wound up, thereby lifting the yaw drive motor 201 connected to one end of the traction rope, thus detaching the yaw drive motor 201. Because the support leg 3 is retracted due to the retraction rod 301, it can be easily carried into the nacelle on top of the base plate 2, where there is space to accommodate the yaw drive motor 201. At the same time, because it does not occupy too much space, it is also convenient for construction personnel to apply force to pull and store the yaw drive motor 201 after disassembly. This avoids the problem that the yaw drive motor 201 is difficult to disassemble due to the limited space in the nacelle of the wind turbine's top base plate 2, which restricts the operation of construction personnel and lacks space to place some mechanical devices.

[0030] When the rotating shaft 3022 is rotated by controlling the crankshaft handle, the rotating shaft 3022 will drive the timing belt 3023 to rotate as well. The middle end of the timing belt 3023 is also connected to the mating gear 3024, thereby driving the mating gear 3024 to rotate. At the same time, because the mating gear 3024 has a helical gear on one side that meshes with the helical gear 3061 on the top of the transmission gear 306, the rotation of the mating gear 3024 will drive the transmission gear 306 to rotate as well. The two sides of the transmission gear 306 protrude from the middle of the lifting groove 303 and mesh with the gear on the side wall of the rotating screw 3031, so that the rotation of the transmission gear 306 will drive the rotating screw 3031 to start rotating as well. When the rotating screw 3031 rotates, it will cause the through-connected lifting plate 304 to move down, which is achieved by the thread matching between the side wall of the rotating screw 3031 and the through hole of the lifting plate 304.

[0031] This allows the sliding shaft 3041 to move downward along the fitting groove 305. When the sliding shaft 3041 moves downward, it will compress the spring in the fitting groove 305. The spring's return force will generate a downward force, thereby applying pressure to the support leg 3, making the support leg 3 more stable. The yaw drive motor 201 can be lifted and disassembled without much manual pressure or fixation.

[0032] The top of the sliding shaft 3041 is fitted into the displacement groove 2042. The round shaft protrusions on both sides of the sliding shaft 3041 are connected to the strip grooves on both sides of the middle of the displacement groove 2042, so that the sliding shaft 3041 can move along the displacement groove 2042, thereby changing the position of the top fitting groove 305 after the support leg 3 is extended or retracted.

[0033] The following is a specific implementation process of the present invention. First, when it is necessary to adjust the orientation of the base plate 2 on the tower column 1 to change the orientation of the wind turbine blades, the yaw drive motor 201 drives the yaw drive gear 202 to start rotating. When the yaw drive gear 202 rotates, it meshes with the gear ring 101, which causes the entire base plate 2 to rotate around the tower column 1 as the axis, thus changing the orientation of the base plate 2.

[0034] When it is necessary to disassemble the yaw drive motor 201, because the connection time of the yaw drive motor 201 is too long, the connection will stick and tighten. Therefore, during disassembly, first place the support legs 3 on both sides of the yaw drive motor 201. At the same time, the spacing of the support legs 3 can be adjusted by the retractable rod 301 so that motors of different sizes can be placed between the support legs 3. Then, tie the traction rope connected to the lifting column 302 at the top of the support legs 3 to the yaw drive motor 201. Then, manually control the crankshaft handle on the take-up seat 3021 at one end of the traction rope to control the rotation of the rotating shaft 3022, thereby causing the rotating roller in the middle of the take-up seat 3021 to rotate and wind up the traction rope, thus winding up the yaw drive motor connected to one end of the traction rope. The yaw drive motor 201 is disassembled by lifting the machine 201. Because the support leg 3 retracts due to the retraction rod 301, it can be easily carried into the nacelle on top of the base plate 2, providing space for the yaw drive motor 201. This design minimizes space requirements and facilitates easy pulling and storage of the disassembled yaw drive motor 201 by construction personnel. This avoids the problem of limited space in the nacelle of the wind turbine's top base plate 2, which restricts operator movement and makes disassembly of the yaw drive motor 201 difficult. When the rotating shaft 3022 is rotated using the crankshaft handle, the rotating shaft 3022 drives the synchronous belt 3023 to rotate as well. The timing belt 3023 is also connected to a mating gear 3024 at one end, which drives the mating gear 3024 to rotate. Simultaneously, because a helical gear is provided on one side of the mating gear 3024 that meshes with the helical gear 3061 at the top of the transmission gear 306, the rotation of the mating gear 3024 drives the transmission gear 306 to rotate as well. The two sides of the transmission gear 306 protrude from the middle of the lifting groove 303 and mesh with the gears on the side wall of the rotating screw 3031, causing the rotating screw 3031 to rotate as well. When the rotating screw 3031 rotates, it causes the through-connected lifting plate 304 to move downwards. This movement is achieved through the screw thread inside the through hole of the rotating screw 3031 and the lifting plate 304. The sliding shaft 3041 moves downward along the fitting groove 305 by matching the grooves. When the sliding shaft 3041 moves downward, it will compress the spring in the fitting groove 305. The spring's return force will generate a downward force, which will put pressure on the support leg 3, making the support leg 3 more stable. The yaw drive motor 201 can be lifted and disassembled without much manual pressure or fixation. The top of the sliding shaft 3041 is fitted into the displacement groove 2042. The round shaft protrusions on both sides of the sliding shaft 3041 are connected to the strip grooves on both sides of the middle of the displacement groove 2042, so that the sliding shaft 3041 can move along the displacement groove 2042. This allows the position of the top fitting groove 305 to change after the support leg 3 extends or retracts.

Claims

1. A disassembly fixture for a yaw motor, comprising a tower column (1), wherein a gear ring (101) is provided on the top side wall of the tower column (1), a base plate (2) is connected to the top of the tower column (1), yaw drive motors (201) are provided on both sides of the top of the base plate (2), and a yaw drive gear (202) is provided at the bottom of the yaw drive motors (201), characterized in that, The top of the base plate (2) is connected to a support leg (3), one end of the support leg (3) is connected to a retractable rod (301), one end of the retractable rod (301) is provided with a lifting column (302), a traction rope is connected through the middle of the lifting column (302), a take-up seat (3021) is provided at the top of the lifting column (302), and a rotating shaft (3022) is connected to one side of the take-up seat (3021).

2. The disassembly fixture for a yaw motor according to claim 1, characterized in that, The support leg (3) is connected to both sides of the lifting column (302) via a retractable rod (301) at one end.

3. The disassembly fixture for a yaw motor according to claim 1, characterized in that, One end of the traction rope that runs through the middle of the lifting column (302) is connected to the round roller in the middle of the take-up seat (3021).

4. The disassembly fixture for a yaw motor according to claim 1, characterized in that, The rotating shaft (3022) also includes a timing belt (3023) and a mating gear (3024). The timing belt (3023) is connected to the side wall of the rotating shaft (3022), and the mating gear (3024) is connected to the bottom of the middle part of the timing belt (3023).

5. The disassembly fixture for a yaw motor according to claim 4, characterized in that, A helical gear is also provided on one side of the mating gear (3024).

6. The disassembly fixture for a yaw motor according to claim 1, characterized in that, The lifting column (302) also includes a lifting groove (303), a lifting plate (304), a fitting groove (305), and a transmission gear (306). The lifting groove (303) is located on both sides of the lifting column (302), the lifting plate (304) is connected to the middle of the lifting groove (303), the fitting groove (305) is located on the top of the support leg (3), and the transmission gear (306) is connected to the middle of the lifting column (302).

7. The disassembly fixture for a yaw motor according to claim 6, characterized in that, The lifting groove (303) also includes a rotating screw (3031), which passes through one end of the lifting plate (304), and the side wall of the rotating screw (3031) is threadedly matched with the inner wall of the through hole at one end of the lifting plate (304).

8. The disassembly fixture for a yaw motor according to claim 7, characterized in that, The rotating lead screw (3031) is provided with a gear near the top side wall, and the protruding parts on both sides of the transmission gear (306) mesh with the gear on the side wall of the rotating lead screw (3031) in the lifting groove (303).

9. The disassembly fixture for a yaw motor according to claim 6, characterized in that, The lifting plate (304) further includes a sliding shaft (3041) and a displacement groove (2042). The displacement groove (2042) is disposed at the bottom of the lifting plate (304). The sliding shaft (3041) is connected in the displacement groove (2042). The bottom of the sliding shaft (3041) cooperates with the fitting groove (305), and the bottom of the sliding shaft (3041) is connected to the bottom of the fitting groove (305) by a spring.

10. The disassembly fixture for a yaw motor according to claim 6, characterized in that, The transmission gear (306) also includes a helical gear (3061), which is disposed on the top of the transmission gear (306) and meshes with a helical gear on one side of the mating gear (3024).

Images