A wind turbine main shaft support device

Abstract

The application relates to the technical field of fan main shaft production and processing, in particular to a wind turbine main shaft supporting device, which comprises a base and a supporting frame assembly installed on the base, the supporting frame assembly is provided with two groups, the supporting frame assembly comprises a supporting rod installed on the base and a supporting seat arranged on the supporting rod, the supporting seat is in a V-shaped structure, and a fan main shaft is installed on the two supporting seats. The application has the effect that the processed fan main shaft can be stably placed in a storage area and rolling of the fan main shaft is prevented.

Description

Technical Field

[0001] This application relates to the technical field of wind turbine main shaft manufacturing and processing, and in particular to a wind turbine main shaft support device. Background Technology

[0002] A wind turbine generator set generally consists of a wind turbine, gearbox, generator, controller, and structural components. Structural components include the underground foundation, tower, and nacelle. The nacelle includes a base and a nacelle cover. For horizontal axis wind turbines with a capacity of 1 MW or more, the nacelle base is typically formed by the rear frame fixed to the front frame. The wind turbine includes blades, hub, main shaft, and fairing. The tower is fixed to the underground foundation. The nacelle base is fixed from above to the top of the tower by the front frame. The main shaft bearing housing and gearbox are located on the front frame, with the main shaft bearing housing fixed from above to the front end of the front frame, and the gearbox fixed from above to the middle of the front frame by its housing. The main shaft bearing is fixed to the main shaft bearing housing by its outer ring. The wind turbine main shaft is a crucial component connecting the wind turbine blades and the wind turbine base, bearing the various loads transmitted from the hub and transmitting torque to the speed-increasing gearbox, as well as axial thrust and aerodynamic bending moment to the nacelle and tower.

[0003] The fan spindle is usually machined on a lathe into a structure with one end being a disc and the other end being a stepped shaft. After production and processing, the fan spindle needs to be placed in a storage area. Currently, when storing the finished fan spindle, it is usually placed directly on the ground. Due to its shape, it is prone to rolling and collisions with other fan spindles. Utility Model Content

[0004] In order to ensure that the processed wind turbine main shaft is stably placed in the storage area and to prevent it from rolling, this application provides a wind turbine main shaft support device.

[0005] This application provides a wind turbine main shaft support device, which adopts the following technical solution: A wind turbine main shaft support device includes a base and a support frame assembly mounted on the base. The support frame assembly is provided in two sets. The support frame assembly includes a support rod mounted on the base and a support seat mounted on the support rod. The support seat has a V-shaped structure, and the wind turbine main shaft is mounted on the two support seats.

[0006] By adopting the above technical solution, when the processed fan spindle is placed in the storage area, both ends of the fan spindle can be placed in the V-shaped structure of the support base, so that the fan spindle can be in a horizontal state, thereby preventing it from rolling on the ground; the set base can provide stable support, so that the fan spindle can remain stable.

[0007] Preferably, the support frame assembly further includes a support member fixed to the support base, the support base being mounted on the support member and positioned above the support rod.

[0008] By adopting the above technical solution, the set support can position the support base above the support rod, allowing the main shaft of the fan to be lifted off the ground for storage, preventing the large-diameter disc end of the main shaft of the fan from touching the ground.

[0009] Preferably, the support members are provided in two sets, which are symmetrically arranged at both ends of the support rod. The support members include a fixed rod that is vertically fixed to the support rod and a telescopic rod that is slidably engaged with the fixed rod. The end of the telescopic rod away from the fixed rod is fixed to the support seat.

[0010] By adopting the above technical solution, the fixed rod and the sliding telescopic rod can control the lifting and lowering of the support seat. When the diameter of the disc of the main shaft of the fan is large, in order to prevent the end of the disc from contacting the ground, the support seat can be raised and lowered to a certain height, thereby preventing the end of the disc of the main shaft of the fan from touching the ground.

[0011] Preferably, the support rod is provided with a lifting assembly for controlling the vertical movement of the support base. The lifting assembly includes a pair of upper lifting rods hinged to the support base and a pair of lower lifting rods hinged to the support rod. Both the two upper lifting rods and the two lower lifting rods have a figure-eight structure, and the ends of the two upper lifting rods away from the support base and the ends of the two lower lifting rods away from the support rod are inclined toward the fixed rod. The ends of the two upper lifting rods away from the support base are connected to the ends of the two lower lifting rods away from the support rod. A rotating member is provided between the two upper lifting rods and the two lower lifting rods, and the rotating member can control the tilt angle of the upper lifting rods and the lower lifting rods.

[0012] By adopting the above technical solution, when controlling the vertical movement of the support base, the angle between the upper and lower lifting rods is changed by the set rotating component. When the upper and lower lifting rods rotate into the same straight line, the support base can be raised to the highest height, allowing the support base to place a fan main shaft with a larger diameter.

[0013] Preferably, the rotating component includes a rotating screw disposed between the upper lifting rod and the lower lifting rod, a connecting block is hinged at the connection between the upper lifting rod and the lower lifting rod, the rotating screw passes through the two connecting blocks and is threadedly engaged with the connecting blocks, the rotating screw is provided with positive and negative bidirectional threads corresponding to the two connecting blocks, and a rotating handle is fixed at the middle position of the rotating screw.

[0014] By adopting the above technical solution, the rotating screw is threadedly connected to two connecting blocks. When the rotating screw rotates, the two connecting blocks can move away from or closer to each other, thereby changing the angle between the upper and lower lifting rods.

[0015] Preferably, the base includes two parallel H-beams and a pair of connecting rods. The two connecting rods are symmetrically fixed at both ends of the H-beams. The support rod is slidably fitted on the two H-beams. A pair of pulleys are symmetrically arranged at both ends of the support rod, and the pulleys are slidably fitted on the H-beams.

[0016] By adopting the above technical solution, the pulleys can make the two support rods move closer or further apart on the base. When placing a long fan shaft, the distance between the two support rods can be adjusted by sliding the drive component, so that the fan shaft can be placed more stably on the support base, and the support device can adapt to fan shafts of different specifications.

[0017] Preferably, the base is provided with a drive assembly for controlling the sliding of the two support rods. The drive assembly includes a drive screw rotatably mounted on the base, the drive screw passing through the two support rods, and the drive screw is provided with bidirectional threads, the bidirectional threads on the drive screw engaging with the threads of the two support rods.

[0018] By adopting the above technical solution, when the drive screw rotates, it can pull the two support rods closer to each other or further apart, and at the same time adjust the movement of the two support rods, so that the support rods can slide to the required position more quickly.

[0019] Preferably, the drive assembly includes a drive member disposed on the base and used to control the rotation of the drive screw. The drive member includes a worm gear rotatably disposed on the base and a worm wheel fixed on the drive screw, wherein the worm gear and the worm wheel cooperate with each other.

[0020] By adopting the above technical solution, the worm gear driving the worm wheel rotation method has the advantage of a large transmission ratio, and allows the operator to control the movement of the two support rods on the I-beam with minimal force. After the rotation is completed, the worm wheel and worm can achieve self-locking, preventing the worm wheel from rotating and controlling the rotation of the worm.

[0021] Preferably, multiple rollers are rotatably arranged on the V-shaped surface of the support base that contacts the fan main shaft, and the circumferential surface of the fan main shaft can contact the rollers.

[0022] By adopting the above technical solution, after the fan main shaft is placed on the support base, it can contact the rollers. After the fan main shaft is placed on the support base, the staff can test various parameters of the fan main shaft. During the test, the fan main shaft can be rotated to conduct a more comprehensive test of the fan main shaft.

[0023] Preferably, a control component for controlling the rotation of the fan main shaft is provided on a support rod near the disc-shaped end of the fan main shaft. The control component includes a control wheel hinged to the support rod and a control motor for driving the control wheel to rotate. The control wheel is always in contact with the circumferential surface of the disc on the fan main shaft.

[0024] By adopting the above technical solution, the output shaft of the control motor is connected to the control wheel to drive the control wheel to rotate. When it is necessary to detect various parameters such as the size of the fan shaft, the control motor is started, allowing the fan main shaft to rotate at a slower speed. This makes it easier for staff to detect various data such as surface roughness, avoiding the need for manual rotation of the heavy fan main shaft.

[0025] In summary, this application includes at least one of the following beneficial technical effects: The support device provided in this application adopts the most practical and convenient mechanical structure, which allows the height of the support base to be adjusted and the distance between the two support rods to be adjusted, thereby enabling the placement of a fan main shaft with a larger diameter and longer length on the support base, thus improving the efficiency of the support device. When adjusting the height of the support base, the support bases at the two positions can be adjusted to different heights as needed. Since the fan main shaft is a stepped shaft, the diameter of the fan main shaft at the position supported by the support base is different. Therefore, by adjusting the support bases at different heights, the fan main shaft can be kept in a horizontal position, which facilitates subsequent adjustment of the rotation of the fan main shaft. The control components are designed to operate the fan spindle to rotate actively. When testing various parameters of the fan spindle, the spindle can rotate at a constant speed, making it convenient for staff to measure data from various cross-sections of the fan spindle. Attached Figure Description

[0026] Figure 1 This is a schematic diagram of the overall structure of an embodiment of this application.

[0027] Figure 2 This is a schematic diagram illustrating the lifting assembly and control assembly in an embodiment of this application.

[0028] Explanation of reference numerals in the attached drawings: 1. Base; 11. I-beam; 12. Connecting rod; 2. Support frame assembly; 21. Support rod; 22. Support component; 221. Fixed rod; 222. Telescopic rod; 23. Support seat; 231. Roller; 3. Lifting assembly; 31. Upper lifting rod; 32. Lower lifting rod; 33. Rotating component; 331. Rotating screw; 332. Connecting block; 333. Rotating handle; 34. Reinforcing nut; 4. Drive assembly; 41. Pulley; 42. Drive screw; 43. Drive component; 431. Support block; 432. Worm gear; 433. Worm wheel; 434. Drive handle; 5. Control assembly; 51. Support plate; 52. Control rod; 53. Control wheel; 54. Tension spring; 55. Control motor. Detailed Implementation

[0029] The following is in conjunction with the appendix Figure 1-2 This application will be described in further detail.

[0030] This application discloses a wind turbine main shaft support device.

[0031] Reference Figure 1 A wind turbine main shaft support device includes a base 1 horizontally set on the ground and a support frame assembly 2 installed on the base 1. The base 1 has a rectangular structure and can be stably placed on the ground. The processed wind turbine main shaft can be placed on the support frame assembly 2 to avoid it being placed directly on the ground.

[0032] The base 1 includes two parallel H-beams 11 and two parallel connecting rods 12. The two connecting rods 12 are symmetrically arranged at both ends of the H-beams 11, and the two ends of the connecting rods 12 are perpendicularly fixed to the two H-beams 11. The two H-beams 11 and the two connecting rods 12 are combined to form a rectangular structure and form a stable base 1. When a heavy fan shaft is placed on the base, the base 1 can be kept stable and will not shake.

[0033] Reference Figure 1 and Figure 2The support frame assembly 2 has two sets on the base 1, which facilitates the placement of both ends of the fan main shaft on the corresponding support frame assembly 2, providing stable support. The support frame assembly 2 includes a support rod 21 set on the base 1, a support member 22 installed on the support rod 21, and a support seat 23 set on the support member 22. The support rod 21 is set along the width direction of the base 1 and spans across two I-beams 11. The support member 22 has two sets on the support rod 21, and the two sets of support members 22 are symmetrically arranged on the support rod 21 near both ends. The support member 22 includes a fixed rod 221 vertically fixed to the support rod 21 and a telescopic rod 222 slidably engaged with the fixed rod 221. The fixed rod 221 is hollow and open at the top. The telescopic rod 222 is slidably inserted into the fixed rod 221 and can slide from the fixed rod 221. The telescopic rod 222 extends freely from the center, and its upper end is fixed to the support base 23. The support base 23 can be raised and lowered by the support member 22. When the diameter of the disc of the main shaft of the fan is large, the support base 23 can be raised and lowered to a certain height to prevent the end of the disc of the main shaft of the fan from touching the ground. The support base 23 has a V-shaped structure. When the main shaft of the fan is placed, both ends of the main shaft of the fan are placed in the V-shaped structure of the support base 23, thereby preventing the main shaft of the fan from rolling. Multiple rollers 231 are rotatably arranged on the V-shaped surface of the support base 23. The circumferential surface of the main shaft of the fan can contact the rollers 231. After the main shaft of the fan is placed on the support base 23, the staff can test various parameters of the main shaft of the fan. During the test, the main shaft of the fan can be rotated to test the main shaft of the fan more comprehensively.

[0034] Reference Figure 1 and Figure 2A lifting assembly 3 for controlling the vertical movement of the support base 23 is provided on the support rod 21. The lifting assembly 3 is located between the support base 23 and the support rod 21. The lifting assembly 3 includes a pair of upper lifting rods 31 hinged to the support base 23 and a pair of lower lifting rods 32 hinged to the support rod 21. Both upper lifting rods 31 and lower lifting rods 32 have a V-shaped structure. The ends of the two upper lifting rods 31 away from the support base 23 and the ends of the two lower lifting rods 32 away from the support rod 21 are inclined towards the fixed rod 221. The ends of the upper lifting rods 31 away from the support base 23 are also inclined towards the lower lifting rods 221. The lowering rod 32 is connected to the end away from the support rod 21. By changing the tilt angle of the upper lifting rod 31 and the lower lifting rod 32, the vertical movement of the support base 23 is controlled. When both the upper lifting rod 31 and the lower lifting rod 32 are rotated to the vertical direction, the support base 23 can be raised to the highest state. As the angle between the upper lifting rod 31 and the lower lifting rod 32 gradually decreases, the height of the support base 23 also gradually decreases. The lifting assembly 3 also includes a rotating component 33 disposed between the upper lifting rod 31 and the lower lifting rod 32. The state between the upper lifting rod 31 and the lower lifting rod 32 is changed by the rotating component 33.

[0035] The rotating component 33 includes a rotating screw 331 rotatably disposed between the upper lifting rod 31 and the lower lifting rod 32, and a connecting block 332 disposed at the connection between the upper lifting rod 31 and the lower lifting rod 32. The two ends of the connecting block 332 are hinged to the upper lifting rod 31 and the lower lifting rod 32. The rotating screw 331 horizontally passes through the two connecting blocks 332, and the two connecting blocks 332 are threadedly connected to the rotating screw 331. The rotating screw 331 has bidirectional threads, corresponding to the two connecting blocks 332. When the rotating screw 331 is rotated, the two connecting blocks 332 can move closer or further apart, thereby controlling the lifting and lowering of the support base 23. A rotating handle 333 is fixed at the middle position of the rotating screw 331. The handle is adjusted according to the dimensions of the fan main shaft. When adjusting the height of the support base 23, the operator controls the rotating handle 333 to rotate, thereby rotating the rotating screw 331 and changing the distance between the two connecting blocks 332, thus changing the height of the support base 23. Furthermore, a pair of reinforcing nuts 34 are threaded onto the rotating screw 331, located on the outside of the two connecting blocks 332. When the height of the support base 23 needs to be adjusted, the reinforcing nuts 34 are loosened, and the rotating screw 331 is rotated. After the height of the support base 23 is adjusted, the reinforcing nuts 34 are tightened so that they press against the connecting rod 12 to prevent the heavy weight of the fan main shaft from pressing the support base 23 downward. Tightening the reinforcing nuts 34 to the connecting blocks 332 can provide reinforcement and prevent loosening.

[0036] Reference Figure 1 and Figure 2The support rod 21 is slidably engaged with two I-beams 11. A drive assembly 4 for controlling the movement of the support rod 21 is also provided on the base 1. A pair of pulleys 41 are symmetrically arranged at both ends of the support rod 21. The two pulleys 41 are slidably engaged with the I-beams 11, so that the two support rods 21 can move closer or further apart on the base 1. When placing a long fan spindle, the distance between the two support rods 21 can be adjusted by sliding the drive assembly 4, so that the fan spindle can be placed more stably on the support seat 23, and the support device can adapt to fan spindles of different specifications.

[0037] The drive assembly 4 includes a drive screw 42 rotatably mounted on the base 1 and a drive component 43 for controlling the rotation of the drive screw 42. The drive screw 42 is arranged along the length of the I-beams 11 and is located between the two I-beams 11. The two ends of the drive screw 42 rotate with the two connecting rods 12. Support blocks 431 are fixed on the lower surfaces of the two support rods 21. The drive screw 42 passes horizontally through the two support blocks 431 and is threadedly connected to the two support blocks 431. The drive screw 42 is provided with positive and negative bidirectional threads, and the positive and negative bidirectional threads correspond to the two support blocks 431. When the drive screw 42 rotates, it controls the two support rods 21 to move closer to each other or further away from each other. The driving component 43 includes a worm gear 432 rotatably mounted on the base 1 and a worm wheel 433 fixed on the driving screw 42. The worm wheel 433 is located at the middle position of the driving screw 42, and the worm gear 432 cooperates with the worm wheel 433. A driving handle 434 is fixed at the end of the worm gear 432. When it is necessary to adjust the distance between the two support rods 21, the rotation of the driving handle 434 is controlled, thereby causing the worm gear 432 to drive the worm wheel 433 to rotate, and then controlling the rotation of the driving screw 42. The cooperation between the worm gear 432 and the worm wheel 433 has a large transmission ratio, which allows the operator to rotate the driving screw 42 in a more effortless way. After rotation is completed, the worm wheel 433 and the worm gear 432 can achieve self-locking, preventing the worm wheel 433 from rotating and controlling the rotation of the worm gear 432.

[0038] Reference Figure 1 and Figure 2A control component 5 is installed on the support rod 21 near the end of the fan main shaft disc to control the active rotation of the fan main shaft on the support base 23. The control component 5 includes a support plate 51 fixed on the support rod 21 and a control rod 52 hinged to the support plate 51. A control wheel 53 is rotatably installed at the end of the control rod 52 away from the support plate 51. The control wheel 53 can always contact the circumferential surface of the fan main shaft disc. Two sets of control rods 52 and control wheels 53 are installed on the support plate 51. A tension spring 54 is fixed between the two control rods 52. In the initial state, the two control wheels 53 are close to each other. When the fan main shaft is placed on the support base 23, the fan disc can press against the two control wheels. On 53, the two control wheels 53 are gradually spread apart and moved away from each other. During the spreading process, the control wheels 53 always contact the circumference of the fan disc. After the fan main shaft is moved away from the support seat 23, the two control wheels 53 can come close together again under the action of the tension spring 54. A control motor 55 is fixed on one of the control rods 52. The output shaft of the control motor 55 is connected to the control wheel 53 to drive the control wheel 53 to rotate. When it is necessary to detect various parameters such as the size of the fan shaft, the control motor 55 is started, allowing the fan main shaft to rotate at a slower speed, which makes it convenient for the staff to detect various data such as surface roughness, avoiding the need to manually rotate the heavy fan main shaft.

[0039] The implementation principle of the wind turbine main shaft support device in this application embodiment is as follows: when the wind turbine main shaft is finished and needs to be placed, the staff dynamically adjusts the distance between the two support rods 21 by using the drive component 4 according to the length and diameter of the wind turbine main shaft, and adjusts the height of the support seat 23 by using the lifting component 3, so that the wind turbine main shaft can be stably placed on the support seat 23.

[0040] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. A wind turbine main shaft support device, characterized in that: It includes a base (1) and a support frame assembly (2) mounted on the base (1). The support frame assembly (2) is provided in two sets. The support frame assembly (2) includes a support rod (21) mounted on the base (1) and a support seat (23) set on the support rod (21). The support seat (23) has a V-shaped structure, and the main shaft of the fan is mounted on the two support seats (23).

2. The wind turbine main shaft support device according to claim 1, characterized in that: The support frame assembly (2) also includes a support member (22) fixed on the support base (23), the support base (23) being installed on the support member (22) and positioned above the support rod (21).

3. The wind turbine main shaft support device according to claim 2, characterized in that: The support member (22) is provided in two sets, which are symmetrically arranged at both ends of the support rod (21). The support member (22) includes a fixed rod (221) that is vertically fixed on the support rod (21) and a telescopic rod (222) that is slidably fitted on the fixed rod (221). The end of the telescopic rod (222) away from the fixed rod (221) is fixed to the support seat (23).

4. The wind turbine main shaft support device according to claim 3, characterized in that: The support rod (21) is provided with a lifting assembly (3) for controlling the vertical movement of the support base (23). The lifting assembly (3) includes a pair of upper lifting rods (31) hinged on the support base (23) and a pair of lower lifting rods (32) hinged on the support rod (21). The two upper lifting rods (31) and the two lower lifting rods (32) are both in a figure-eight shape. The ends of the two upper lifting rods (31) away from the support base (23) and the ends of the two lower lifting rods (32) away from the support rod (21) are inclined toward the fixed rod (221). The ends of the two upper lifting rods (31) away from the support base (23) are connected to the ends of the two lower lifting rods (32) away from the support rod (21). A rotating member (33) is provided between the two upper lifting rods (31) and the two lower lifting rods (32). The rotating member (33) can control the tilt angle of the upper lifting rods (31) and the lower lifting rods (32).

5. A wind turbine main shaft support device according to claim 4, characterized in that: The rotating component (33) includes a rotating screw (331) disposed between the upper lifting rod (31) and the lower lifting rod (32). A connecting block (332) is hinged at the connection between the upper lifting rod (31) and the lower lifting rod (32). The rotating screw (331) passes through the two connecting blocks (332) and is threadedly engaged with the connecting blocks (332). The rotating screw (331) is provided with positive and negative bidirectional threads corresponding to the two connecting blocks (332). A rotating handle (333) is fixed at the middle position of the rotating screw (331).

6. A wind turbine main shaft support device according to claim 1, characterized in that: The base (1) includes two parallel I-beams (11) and a pair of connecting rods (12). The two connecting rods (12) are symmetrically fixed at both ends of the I-beams (11). The support rod (21) is slidably fitted on the two I-beams (11). A pair of pulleys (41) are symmetrically arranged at both ends of the support rod (21). The pulleys (41) are slidably fitted on the I-beams (11).

7. A wind turbine main shaft support device according to claim 1, characterized in that: The base (1) is provided with a drive assembly (4) for controlling the sliding of two support rods (21). The drive assembly (4) includes a drive screw (42) rotatably mounted on the base (1). The drive screw (42) passes through the two support rods (21) and is provided with a bidirectional thread. The bidirectional thread on the drive screw (42) is threaded with the two support rods (21).

8. A wind turbine main shaft support device according to claim 7, characterized in that: The drive assembly (4) includes a drive member (43) disposed on the base (1) and used to control the rotation of the drive screw (42). The drive member (43) includes a worm (432) rotatably disposed on the base (1) and a worm wheel (433) fixed on the drive screw (42). The worm (432) and the worm wheel (433) cooperate with each other.

9. A wind turbine main shaft support device according to claim 1, characterized in that: Multiple rollers (231) are rotatably provided on the V-shaped surface of the support base (23) that contacts the fan main shaft, and the circumferential surface of the fan main shaft can contact the rollers (231).

10. A wind turbine main shaft support device according to claim 1, characterized in that: A control component (5) for controlling the rotation of the fan main shaft is provided on the support rod (21) near the disc-shaped end of the fan main shaft. The control component (5) includes a control wheel (53) hinged on the support rod (21) and a control motor (55) for driving the control wheel (53) to rotate. The control wheel (53) is always in contact with the circumferential surface of the disc on the fan main shaft.

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