A turning device for wind turbine main shaft

Abstract

The present application discloses a turning device for a wind turbine main shaft, which relates to the field of wind turbine main shaft processing, and includes a machine body, a three-jaw chuck, a center, a tool holder and a support assembly, wherein a slide seat is provided on the machine body for sliding movement, the tool holder is provided on the slide seat, the support assembly includes two supporting balls provided opposite to each other, the two supporting balls abut against the wind turbine main shaft, a sliding groove is provided on the slide seat, the slide seat is provided with two sliding blocks for sliding movement in the sliding groove, the two sliding blocks correspond to the two supporting balls one by one, the supporting balls are provided on the corresponding sliding blocks, the slide seat is provided with two compression springs in the sliding groove, the two compression springs are provided on the side away from the two sliding blocks, the length direction of the compression spring is consistent with the sliding direction of the sliding block, one end of the compression spring is connected to the corresponding sliding block, and the other end of the compression spring is connected to the inner wall of the sliding groove. The present application is helpful to improve the turning quality of the wind turbine main shaft.

Description

Technical Field

[0001] The present application relates to the field of wind turbine main shaft processing, and in particular to a turning device for a wind turbine main shaft. Background Art

[0002] A wind turbine is an electric device that converts wind energy into mechanical work, which drives the rotor to rotate and finally outputs alternating current. The main shaft of a wind turbine is heavy and requires high machining accuracy.

[0003] After cutting, heat treatment, stamping and forging, the metal raw materials are formed into blanks, which are then turned to obtain wind turbine main shafts.

[0004] During turning operation, the three-jaw chuck clamps the wind turbine main shaft, cooperates with the center to drive the wind turbine main shaft to rotate, and the turning tool performs turning operation on the surface of the wind turbine main shaft.

[0005] However, in reality, the wind turbine main shaft is long and heavy, and the supporting points at both ends of the wind turbine main shaft are far away, so the wind turbine main shaft is prone to lateral movement in the radial direction, thereby affecting the turning quality. Summary of the invention

[0006] In order to improve the turning quality of a wind turbine main shaft, the present application provides a turning device for a wind turbine main shaft.

[0007] The present application provides a turning device for a wind turbine main shaft adopts the following technical solution:

[0008] 7. The swiftly and minutely adjusting device for a wood-planer working table as claimed in claim 1, wherein said two guide wheels are pivotally connected to each other with a bolt, and said bolt has a round shank to contact with said tool holder. said two guide wheels are pivotally connected to each other with a bolt, and said bolt has a round shank to contact with said tool holder.

[0009] By adopting the above technical scheme, the wind turbine main shaft is hoisted to the turning device, the three-jaw chuck clamps the wind turbine main shaft, and the top point abuts against its end. During this process, the peripheral side of the wind turbine main shaft will contact the supporting ball. The two supporting balls abut the wind turbine main shaft to increase the supporting points, which helps to prevent the radial movement of the wind turbine main shaft during the processing. In addition, the supporting balls and the tool holder are both located on the slide seat, that is, when the tool on the tool holder processes the wind turbine main shaft, the supporting ball will move with the movement of the tool holder, and the supporting point of the supporting ball is always located on the side of the processing position, shortening the axial distance between the supporting point and the turning point, which helps to reduce the radial movement of the main shaft, that is, it helps to improve the turning quality of the wind turbine main shaft; in addition, the two sliding blocks slide in the sliding groove of the slide seat. Because the size of the spindle blank is not unique after the processing is completed, the gap between the two supporting balls can be changed by sliding the two sliding blocks to adapt to the support of spindles of different sizes.

[0010] Preferably, two support assemblies are provided, and the two support assemblies are respectively located at the front side and the rear side of the tool holder in the direction of travel of the tool.

[0011] By adopting the above technical solution, two support assemblies are provided, which increases the number of support points and helps to further reduce the radial movement of the wind turbine main shaft during processing.

[0012] Preferably, a mounting groove is provided in the slide seat, the slide seat is located in the mounting groove and is rotatably connected to a driving disk, two hinged rods are eccentrically provided on the driving disk, the two hinged rods correspond to two sliding blocks one by one, a connecting rod is hinged on the hinged rod, and one end of the connecting rod away from the hinged rod is hinged to the corresponding sliding block; the slide seat is located in the mounting groove and is provided with a locking piece, the locking piece locks the rotation of the driving disk to prevent the two sliding blocks from moving away from each other.

[0013] By adopting the above technical solution, when the wind turbine main shaft enters between the two supporting balls, the two supporting balls move in the direction away from each other through the sliding block, so as to adapt to wind turbine main shafts of different sizes; when the sliding block slides, the two sliding blocks can drive the driving disk to rotate a certain angle. When turning operations are performed, if the main shaft moves, the sliding block may also slide under the action of the compression spring because the sliding block is abutted by the compression spring. The driving disk is locked by the locking piece to prevent the driving disk from rotating, which can prevent the two sliding blocks from sliding in the direction away from each other, so that the two supporting balls are always pressed against the surface of the main shaft, thereby helping to prevent the wind turbine main shaft from moving during turning operations.

[0014] Preferably, the sliding seat is located in the mounting groove and a connecting shaft is fixed thereon, the connecting shaft is vertically arranged, the driving disk is rotatably connected to the connecting shaft, the connecting shaft is located at the lower side of the driving disk and is also rotatably connected to a ratchet, a pawl is hinged on the lower side of the driving disk, the pawl is meshed with the inner teeth of the ratchet, a spring sheet is also installed on the lower side of the driving disk, the spring sheet abuts against the pawl; the locking piece is arranged as a locking rack, the locking rack is slidably arranged in the mounting groove, a gear portion is formed on the peripheral side of the ratchet; the locking rack slides and meshes with the gear portion to lock the rotation of the ratchet.

[0015] By adopting the above technical scheme, the size of the two supporting balls adapted to the main shaft will slip, that is, the sliding block will slip, and the sliding block will drive the driving disk to rotate when it slides. When turning operations are performed, the locking rack slides and engages with the gear part to lock the ratchet, and the ratchet cannot rotate at this time; a one-way rotation is formed between the ratchet and the pawl. After the ratchet is locked, the pawl can still rotate in one direction, but at this time, if the pawl rotates, the driving disk will drive the two sliding blocks to move in a direction close to each other. Because the diameter of the wind turbine main shaft will gradually decrease during the turning process, when the supporting ball moves to a position where the radius becomes smaller, under the action of the compression spring, the supporting ball is pressed against the surface of the wind turbine main shaft, and the driving disk can rotate accordingly; but under the locking of the ratchet, the driving disk cannot be reversed, that is, the two sliding blocks cannot slide in a direction away from each other, which helps to ensure the reliability of the supporting ball supporting the wind turbine main shaft.

[0016] Preferably, a screw is rotatably connected to the machine body, and a driving motor for driving the screw to rotate is installed on the machine body, the slide is threadedly connected to the screw, and a guide block is also installed on the machine body, and the slide and the guide block are plug-in and slidingly matched.

[0017] By adopting the above technical solution, the driving motor drives the screw rod to rotate, driving the slide to slide horizontally, so that the turning operation of the turning tool on the tool holder on the spindle can be realized, wherein the guide block guides the slide and improves the stability of the slide when sliding.

[0018] Preferably, the sliding seat is located in the installation groove and is rotatably connected to the first linkage wheel, and the locking rack is rotatably connected to the second linkage wheel. A linkage rod is eccentrically arranged on the first linkage wheel, and a linkage groove is opened on the second linkage wheel. The linkage groove is arranged in an arc shape, and the curvature center of the linkage groove is located at the center of the second linkage wheel. The bottom wall of the linkage groove is high at both ends and low in the middle. The lowest point of the linkage groove is the initial part, and the highest points at both ends of the linkage groove are the driving parts. The linkage rod is slidably matched with the linkage groove. In the initial state, the end of the linkage rod is located at the initial part of the linkage groove. The sliding seat is also rotatably connected to a driving wheel, the driving wheel is meshed with the first linkage wheel, a driving rack is laid on the body, the driving wheel is meshed with the driving rack and moves and rotates on the driving rack; the sliding seat is located on the side wall of the mounting groove and is provided with a first sliding groove, the end of the locking rack slides in the first sliding groove, the sliding seat is located in the first sliding groove and is provided with a return spring, the length direction of the return spring is consistent with the sliding direction of the locking rack, one end of the return spring is connected to the locking rack, and the other end of the return spring is connected to the groove wall of the first sliding groove.

[0019] By adopting the above technical solution, when performing turning operations, the slide will drive the tool holder to slide in the horizontal direction, that is, the tool performs turning operations on the wind turbine main shaft. During this process, the driving wheel walks and rotates on the driving rack, and the driving wheel drives the first linkage wheel to rotate; because the linkage rod is located at the initial part of the lowest point of the linkage groove, when the first linkage wheel rotates, the linkage rod will slide in the linkage groove, sliding from the lowest point to the highest point of the linkage groove, at this time, the second linkage wheel will drive the locking rack to slide, and the locking rack will mesh with the gear part of the ratchet wheel, and then when the first linkage wheel rotates, the second linkage wheel can be driven to rotate synchronously through the linkage rod; when the slide moves to the end and stops, under the action of the reset spring, the locking rack slides, the second linkage wheel rotates, and the end of the linkage rod is reset to the lowest point of the linkage groove; similarly, when the slide slides in the opposite direction, the linkage rod will slide to the high point on the other side of the linkage groove, and drive the locking rack to mesh with the gear part to achieve locking of the drive disk.

[0020] Preferably, a liquid spray pipe is slidably provided on the slide seat, and the liquid spray port of the liquid spray pipe is always facing the main shaft on the front side of the moving direction of the turning tool holder.

[0021] By adopting the above technical solution, the spray port of the spray pipe is always facing the spindle on the front side of the tool holder in the moving direction. On the one hand, some impurities on the surface of the spindle can be washed away, and on the other hand, the surface of the spindle is coated with cutting fluid to cool the tool during turning.

[0022] Preferably, a support seat is slidably provided on the slide seat, the spray pipe is installed on the support seat, the slide seat is located in the installation groove and is slidably provided with a linkage rack, the sliding direction of the linkage rack is consistent with the sliding direction of the slide seat, the linkage rack is connected to the support seat through a connecting rod, and the linkage rack is located on the upper side of the second linkage wheel; when the first linkage wheel drives the second linkage wheel to slide, the second linkage wheel engages with the linkage rack; second slide grooves are provided on the opposite side walls of the installation groove of the slide seat, the linkage rack slides in the second slide groove, and the two ends of the linkage rack correspond to the two second slide grooves, and the slide seat is located in the second slide groove and is provided with an abutment spring, one end of the abutment spring is connected to the linkage rack, and the other end of the abutment spring is connected to the inner wall of the second slide groove.

[0023] By adopting the above technical scheme, when the slide seat slides, the first linkage wheel drives the second linkage wheel to slide one end distance first, at this time the second linkage wheel is meshed with the linkage rack, and then the first linkage wheel drives the second linkage wheel to rotate synchronously, and the second linkage wheel drives the linkage rack to slide, and the sliding direction of the linkage rack is consistent with the sliding direction of the slide seat, that is, the spray pipe will slide to the front side of the traveling direction of the turning tool to spray liquid on the spindle; when the slide seat moves to one end and stops, at this time the second linkage wheel is reset and disengaged from the linkage rack, under the action of the abutment spring, the support seat and the spray pipe are reset, and when the slide seat slides in the opposite direction for turning operation, the first linkage wheel drives the second linkage wheel to slide one end distance, the second linkage wheel is meshed with the linkage rack, and then the first linkage wheel drives the second linkage wheel to rotate synchronously, at this time the second linkage wheel rotates in the opposite direction, driving the linkage rack to slide in the opposite direction, that is, the sliding of the support seat and the spray pipe is realized, ensuring that the spray outlet of the spray pipe is always facing the spindle on the front side of the traveling direction of the turning tool holder.

[0024] In summary, the present application includes at least one of the following beneficial technical effects:

[0025] 1. The spindle is hoisted to the turning device, and the two sides of the spindle are abutted by the supporting balls to increase the supporting points, which helps to prevent the radial movement of the wind turbine spindle during the processing and improve the processing quality of the wind turbine spindle. In addition, the supporting balls are set on the slide seat and will move with the movement of the turning tool holder, that is, the supporting point of the supporting ball is always located beside the processing point, shortening the distance from the supporting point to the cutting point, which helps to further reduce the radial movement of the spindle;

[0026] 2. During the turning operation, the locking rack locks the ratchet wheel to prevent the driving disc from rotating, that is, to prevent the two sliding blocks from sliding in different directions, thereby helping to ensure the stability of the support ball for the spindle. After the locking rack locks the ratchet wheel, the driving disc can rotate in one direction, and the rotation direction is that the two sliding blocks slide towards each other. That is, during the turning process, after the spindle diameter is shortened, the support ball can be ensured to always be pressed against the spindle surface under the action of the compression spring, further improving the support effect.

[0027] 3. Use the spray pipe to spray liquid on the spindle surface to flush impurities and cool the turning tool. By rotating the first linkage wheel forward and reverse, the corresponding linkage rack slides to both sides, so that the spray pipe is always facing the spindle on the front side of the tool holder's travel direction, thereby maximizing the effect of the cutting fluid. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] Figure 1 This is a schematic diagram of the overall structure of an embodiment of the present application;

[0029] Figure 2 This is a schematic cross-sectional structural diagram of a slide seat in an embodiment of the present application;

[0030] Figure 3 It is a partial structural schematic diagram of an embodiment of the present application, mainly showing the structure of the driving disc and the ratchet;

[0031] Figure 4 This is a cross-sectional view of the sliding seat in the embodiment of the present application, which mainly reflects the structure of the first linkage wheel and the second linkage wheel;

[0032] Figure 5 This is a schematic diagram of the structure of the second linkage wheel in the embodiment of the present application, which mainly reflects the structure of the linkage groove;

[0033] Figure 6 This is a side view of the slide in the embodiment of the present application, which mainly shows the structure of the driving wheel and the transmission wheel;

[0034] Figure 7 This is a cross-sectional view of the sliding seat in the embodiment of the present application, which mainly reflects the structure of the linkage rack.

[0035] Reference numerals: 1, machine body; 11, three-jaw chuck; 12, top; 13, tool rest; 14, screw rod; 16, guide block; 17, driving rack; 2, supporting assembly; 21, supporting ball; 3, slide seat; 31, transmission wheel; 32, support seat; 33, spray pipe; 34, sliding groove; 4, sliding groove; 41, sliding block; 42, compression spring; 5, mounting groove; 6, connecting shaft; 61, driving plate; 611, hinged rod; 612, connecting rod; 613 , pawl; 614, spring piece; 62, ratchet; 621, gear part; 7, locking rack; 8, first linkage wheel; 81, linkage rod; 9, second linkage wheel; 91, linkage groove; 911, initial part; 912, driving part; 10, avoidance groove; 101, driving wheel; 20, first slide groove; 201, return spring; 30, second slide groove; 301, abutment spring; 40, linkage rack; 401, rack part; 402, smooth part; 50, connecting rod. DETAILED DESCRIPTION

[0036] The following is combined with Figure 1-7 This application is described in further detail.

[0037] The embodiment of the present application discloses a turning device for a wind turbine main shaft.

[0038] Reference Figure 1 The turning device of the wind turbine main shaft includes a machine body 1, a three-jaw chuck 11, a center 12, a turning tool holder 13 and a supporting assembly 2. The three-jaw chuck 11 and the center 12 are installed on the machine body 1. The three-jaw chuck 11 is used to clamp the wind turbine main shaft and cooperate with the center 12 to drive the wind turbine main shaft to rotate. A slide seat 3 is slidably arranged on the machine body 1, and the turning tool holder 13 is installed on the slide seat 3. The turning tool holder 13 is used to install a turning tool to perform turning operations on the wind turbine main shaft.

[0039] Reference Figure 1 and Figure 2 The support assembly 2 is arranged on the slide 3. The support assembly 2 can be set as one and located on one side of the tool holder 13. In this embodiment, two support assemblies 2 are provided and located on both sides of the tool holder 13, that is, located on the front and rear sides of the tool moving direction. The structures of the two supporting assemblies 2 are the same. One of them is taken as an example for explanation. The supporting assembly 2 includes two supporting balls 21 arranged opposite to each other. The supporting balls 21 are universally rotatable. The two supporting balls 21 are located on both sides of the wind turbine main shaft and are pressed against the surface of the wind turbine main shaft. A sliding groove 4 is provided on the sliding seat 3. The sliding seat 3 is located in the sliding groove 4 and is slidingly connected to two sliding blocks 41. The two sliding blocks 41 correspond one to one with the two supporting balls 21. The supporting balls 21 are installed on the corresponding sliding blocks 41 through the mounting seat. The sliding seat 3 is located in the sliding groove 4 and is installed with two compression springs 42. The two compression springs 42 are located on the side away from the two sliding blocks 41. The length direction of the compression spring 42 is consistent with the sliding direction of the sliding block 41. The two compression springs 42 correspond one to one with the two sliding blocks 41. One end of the compression spring 42 is connected to the corresponding sliding block 41, and the other end of the compression spring 42 is connected to the inner wall of the sliding groove 4.

[0040] The wind turbine main shaft is hoisted to the turning device, the three-jaw chuck 11 clamps the wind turbine main shaft, the top 12 abuts against its end, and the main shaft moves between the relative support balls 21, the support balls 21 abut against the peripheral side of the main shaft, increasing the support points, which helps to reduce the radial movement of the wind turbine main shaft during the turning process. In addition, the support balls 21 are installed on the slide seat 3, that is, the support balls 21 move with the movement of the tool holder 13, ensuring that the distance between the support point and the turning point does not change, which helps to ensure stability during turning. The two sliding blocks 41 can slide in the sliding groove 4, that is, the spacing between the relative support balls 21 can change to adapt to spindle blanks of different sizes.

[0041] A screw rod 14 is rotatably connected to the body 1, and a driving motor for driving the screw rod 14 to rotate is installed on the body 1. The slide 3 and the screw rod 14 are threadedly connected. A guide block 16 is also installed on the body 1. The length direction of the guide block 16 is consistent with the length direction of the screw rod 14. The slide 3 and the guide block 16 are plugged in and slideably matched.

[0042] The slide 3 is provided with a mounting groove 5. The slide 3 is located in the mounting groove 5 and is fixedly connected with a connecting shaft 6 in the vertical direction. The connecting shaft 6 is rotatably connected with a driving disk 61. Two hinged rods 611 are installed on the driving disk 61. The hinged rods 611 are eccentrically arranged with the driving disk 61, and the two hinged rods 611 are arranged opposite to each other. The two hinged rods 611 correspond to the two sliding blocks 41 one by one. The hinged rods 611 are hinged with connecting rods 612. One end of the connecting rod 612 away from the hinged rods 611 is hinged with the corresponding sliding block 41. The slide 3 is located in the mounting groove 5 and is provided with a locking member. The locking member locks the rotation of the driving disk 61 to prevent the two sliding blocks 41 from moving away from each other.

[0043] When the wind turbine main shaft enters between the two supporting balls 21, the two sliding blocks 41 will slide in directions away from each other, that is, the distance between the two supporting balls 21 changes to adapt to the size of the main shaft. Under the action of the compression spring 42, the supporting ball 21 abuts against the surface of the main shaft to support the main shaft. While the sliding block 41 slides, the driving disk 61 rotates through the connecting rod 612; because the compression spring 42 has elastic properties, the compression spring 42 may shake back and forth during the turning operation, that is, the supporting effect of the supporting ball 21 on the main shaft is not stable, so the locking piece is used to lock the driving disk 61, that is, the sliding of the two sliding blocks 41 is locked. At this time, the supporting ball 21 cannot move, which helps to improve the supporting stability of the supporting ball 21 and ensure the turning quality.

[0044] Reference Figure 2 and Figure 3, a ratchet 62 is also rotatably connected to the connecting shaft 6, and the ratchet 62 is located below the driving disk 61. A pawl 613 is hinged on the lower side of the driving disk 61, and the pawl 613 is meshed with the ratchet 62. A spring piece 614 is also installed on the lower side of the driving disk 61, and the spring piece 614 abuts against the pawl 613, so that the pawl 613 can be tightly meshed with the inner teeth of the ratchet 62; the locking member is configured as a locking rack 7, and the locking rack 7 is slidably arranged in the mounting groove 5, and the locking rack 7 slides in the horizontal direction and is perpendicular to the sliding direction of the slide seat 3. A gear portion 621 is formed on the circumferential side of the ratchet 62, and the locking rack 7 slides and meshes with the gear portion 621, thereby locking the rotation of the ratchet 62, and the ratchet 62 cannot rotate, and the pawl 613 is locked in one direction, that is, the driving disk 61 is locked in one direction. The locking direction is the rotation direction of the drive disk 61 when the two sliding blocks 41 slide away from each other, that is, by locking the ratchet 62 with the locking rack 7, the two sliding blocks 41 cannot slide away from each other; due to the characteristics of the pawl 613 of the ratchet 62, although the ratchet 62 cannot rotate, the pawl 613 can rotate unidirectionally relative to the ratchet 62, that is, the drive disk 61 can rotate unidirectionally, and the rotation direction is the rotation direction of the drive disk 61 when the two sliding blocks 41 slide toward each other, that is, after the locking rack 7 locks the ratchet 62, the two sliding blocks 41 can drive the supporting balls 21 to slide in the direction of approaching each other, and cannot slide in the opposite direction. Because the diameter of the wind turbine main shaft will decrease during the turning operation, the two supporting balls 21 on the rear side of the tool travel direction will move toward each other under the action of the compression spring 42, and always fit on the surface of the main shaft, which helps to ensure the supporting effect and improve the turning quality.

[0045] Reference Figure 2 , Figure 4 and Figure 5 The slide seat 3 is located in the installation groove 5 and is rotatably connected to the first linkage wheel 8. The side of the locking rack 7 away from the ratchet wheel 62 is rotatably connected to the second linkage wheel 9. The first linkage wheel 8 is fixedly connected to a linkage rod 81, which is eccentrically arranged with the first linkage wheel 8. The second linkage wheel 9 is provided with a linkage groove 91, which is arranged in an arc shape, and the curvature center of the linkage groove 91 is located at the center of the second linkage wheel 9. The bottom wall of the linkage groove 91 is high at both ends and low in the middle. The lowest part of the linkage groove 91 is the initial part 911, and the higher parts at both ends of the linkage groove 91 are the driving parts 912. The end of the linkage rod 81 is located in the linkage groove 91, and the linkage rod 81 is slidably matched with the linkage groove 91. In the initial state, the end of the linkage rod 81 is located at the initial part 911 of the linkage groove 91.

[0046] Reference Figure 1 , Figure 2 , Figure 4 and Figure 6A avoidance groove 10 connected to the mounting groove 5 is provided at the bottom of the slide 3. The slide 3 is located at the avoidance groove 10 and is rotatably connected to a driving wheel 101. The driving wheel 101, the first linkage wheel 8 and the second linkage wheel 9 are all gears. The driving wheel 101 is located at the lower side of the first linkage wheel 8. The slide 3 is located between the driving wheel 101 and the first linkage wheel 8 and is also rotatably connected to a transmission wheel 31. The driving wheel 101 is meshed with the transmission wheel 31, and the transmission wheel 31 is meshed with the first linkage wheel 8. A driving rack 17 is laid on the body 1. The length direction of the driving rack 17 is consistent with the sliding direction of the slide 3. The driving wheel 101 is meshed with the driving rack 17. When the driving wheel 101 walks on the driving rack 17, the driving wheel 101 rotates.

[0047] Reference Figure 4 A first slide groove 20 is provided on the side wall of the slide seat 3 located on the mounting groove 5, and the locking rack 7 slides in the first slide groove 20. The slide seat 3 is located in the first slide groove 20 and is installed with a return spring 201. The length direction of the return spring 201 is consistent with the sliding direction of the locking rack 7. The return spring 201 is located on the side of the locking rack 7 away from the first linkage wheel 8. One end of the return spring 201 is connected to the locking rack 7, and the other end of the return spring 201 is connected to the groove wall of the first slide groove 20.

[0048] When the turning operation is performed, the slide 3 slides, driving the turning tool on the tool holder 13 to slide, that is, the wind turbine main shaft is turned. When the slide 3 slides, the driving wheel 101 walks on the driving rack 17 and rotates, and the driving wheel 101 drives the first linkage wheel 8 to rotate through the transmission wheel 31. In the initial state, the linkage rod 81 on the first linkage wheel 8 is located at the initial part 911 of the linkage groove 91 on the second linkage wheel 9. When the first linkage wheel 8 rotates, the linkage rod 81 first slides in the linkage groove 91. At this time, the second linkage wheel 9 does not rotate. When the linkage rod 81 slides to the driving part 912 at the end of the linkage groove 91, that is, the linkage rod 81 abuts against the end wall of the linkage groove 91. Thereafter, the first linkage wheel 8 will drive the second linkage wheel 9 to rotate synchronously. When the linkage rod 81 and the linkage groove 91 slide relative to each other, due to the effect that the bottom wall of the linkage groove 91 is a wedge-shaped surface, the second linkage wheel 9 will drive the locking rack 7 to slide and lock the ratchet 62. When the slide 3 moves from one end of the spindle to the other end and stops, the locking rack 7 slides under the action of the reset spring 201, and the second linkage wheel 9 rotates until the linkage rod 81 is reset to the initial part 911 of the linkage groove 91. Similarly, if the slide 3 slides in the reverse direction for turning operation, the linkage rod 81 will slide to the other driving part 912 of the linkage groove 91 to lock the ratchet 62.

[0049] Reference Figure 2 and Figure 7The slide 3 is slidably connected with a support seat 32, and a liquid spraying pipe 33 is installed on the support seat 32. The liquid spraying port of the liquid spraying pipe 33 always faces the main shaft on the front side of the moving direction of the turning tool holder 13. The slide 3 is provided with a sliding groove 34, and the bottom of the support seat 32 slides in the sliding groove 34, and the sliding groove 34 is connected with the mounting groove 5; the slide 3 is provided with a second sliding groove 30 on the opposite side wall of the mounting groove 5, and the slide 3 is located in the second sliding groove 30 and is slidably matched with a linkage rack 40, and the sliding direction of the linkage rack 40 is consistent with the sliding direction of the slide 3, and the two ends of the linkage rack 40 are respectively located in the two second sliding grooves 30, and the linkage rack 40 and the bottom of the support seat 32 are connected by a connecting rod 50. The linkage rack 40 is located on the upper side of the second linkage wheel 9. When the first linkage wheel 8 drives the second linkage wheel 9 to slide first, the second linkage wheel 9 slides and gradually meshes with the linkage rack 40. Then, when the second linkage wheel 9 rotates, it can drive the linkage rack 40 to slide. The slide seat 3 is located in the two second slide grooves 30 and is equipped with abutment springs 301. One end of the abutment spring 301 is connected to the end of the linkage rack 40, and the other end of the abutment spring 301 is connected to the inner wall of the second slide groove 30.

[0050] A rack portion 401 is formed in the middle of the linkage rack 40, and smooth portions 402 are formed on both sides of the linkage rack 401. When the second linkage wheel 9 is engaged with the rack portion 401, the second linkage wheel 9 rotates to drive the linkage rack 40 to slide. When the linkage rack 40 slides, the rack portion 401 gradually separates from the second linkage wheel 9, and thereafter, the second linkage wheel 9 can no longer drive the linkage rack 40 to slide.

[0051] When the slide 3 slides, the first linkage wheel 8 rotates, and the linkage rod 81 slides in the linkage groove 91 first. At this time, the second linkage wheel 9 does not rotate. The second linkage wheel 9 drives the locking rack 7 to slide and lock the ratchet 62. When the second linkage wheel 9 slides, it forms a meshing cooperation with the linkage rack 40. Then the first linkage wheel 8 drives the second linkage wheel 9 to rotate, and the second linkage wheel 9 drives the linkage rack 40 to slide, and the sliding direction of the linkage rack 40 is consistent with the sliding direction of the slide 3. The linkage rack 40 drives the spray pipe 33 on the support seat 32 to move to the front side of the moving direction of the turning tool, and sprays cutting fluid on the spindle. On the one hand, it can flush impurities on the surface of the spindle, and on the other hand, when the turning tool contacts the cutting fluid during movement, the turning tool is cooled. When the slide 3 stops sliding, under the action of the reset spring 201, the locking rack 7 is reset, that is, the second linkage wheel 9 is reset, and the second linkage wheel 9 will slide a distance in the direction of the first linkage wheel 8 to avoid the linkage rack 40. At this time, under the action of the abutment spring 301, the linkage rack 40 is reset; similarly, when the slide 3 slides in the opposite direction, the corresponding spray pipe 33 will also slide, and the spray pipe 33 is always located at the front side of the moving direction of the turning tool.

[0052] The implementation principle of the turning device of a wind turbine main shaft in the embodiment of the present application is as follows: the main shaft is hoisted to the turning device, and the supporting balls 21 are used to abut against the two sides of the main shaft to increase the supporting points, which helps to prevent the radial movement of the wind turbine main shaft during the processing and improve the processing quality of the wind turbine main shaft. In addition, the supporting balls 21 are arranged on the slide seat 3 and will move with the movement of the turning tool holder 13, that is, the supporting points of the supporting balls 21 are always located beside the processing point, shortening the distance from the supporting point to the cutting point, which helps to further reduce the radial movement of the main shaft; by locking the ratchet 62 with the help of the locking rack 7, the driving disk 61 can be prevented from rotating, that is, the The two sliding blocks 41 are prevented from sliding in opposite directions, which helps to ensure the stability of the support of the main shaft by the supporting balls 21. After the locking rack 7 locks the ratchet 62, the driving disk 61 can rotate unidirectionally, and the rotation direction is that the two sliding blocks 41 slide towards each other, that is, during the turning process, after the spindle diameter is shortened, the supporting balls 21 can be ensured to always be pressed against the spindle surface under the action of the compression spring 42, further improving the support effect; through the positive and reverse rotation of the first linkage wheel 8, the corresponding linkage rack 40 slides to both sides, so that the spray pipe 33 can always face the spindle on the front side of the moving direction of the tool holder 13, so as to flush impurities and cool the turning tool.

[0053] The above are all preferred embodiments of the present application, and the protection scope of the present application is not limited thereto. Therefore, any equivalent changes made according to the structure, shape, and principle of the present application should be included in the protection scope of the present application.

Claims

1. A turning device for a wind turbine main shaft, characterized in that: The invention comprises a machine body (1), a three-jaw chuck (11), a top (12), a tool holder (13) and a support assembly (2); a slide seat (3) is slidably arranged on the machine body (1); the tool holder (13) is arranged on the slide seat (3); the support assembly (2) comprises two supporting balls (21) arranged opposite to each other; the supporting balls (21) are arranged to rotate in a universal direction; the two supporting balls (21) are located on both sides of the main shaft of the wind turbine; the two supporting balls (21) are in contact with the main shaft of the wind turbine; a sliding groove (4) is provided on the sliding seat (3); the sliding seat (3) is slidably arranged with two sliding blocks (41) in the sliding groove (4); the two sliding blocks (41) correspond one to one with the two supporting balls (21) The supporting ball (21) is arranged on the corresponding sliding block (41); the sliding seat (3) is provided with two compression springs (42) in the sliding groove (4); the two compression springs (42) are located on the side opposite to the two sliding blocks (41); the length direction of the compression springs (42) is consistent with the sliding direction of the sliding block (41); the two compression springs (42) and the two sliding blocks (41) correspond one to one; one end of the compression spring (42) is connected to the corresponding sliding block (41); the other end of the compression spring (42) is connected to the inner wall of the sliding groove (4); the sliding seat (3) is provided with a mounting groove (5); the sliding seat (3) is rotatably connected to the mounting groove (5) A driving disk (61), wherein two hinged rods (611) are eccentrically arranged on the driving disk (61), wherein the two hinged rods (611) correspond to the two sliding blocks (41) one by one, and a connecting rod (612) is hinged on the hinged rod (611), wherein one end of the connecting rod (612) away from the hinged rod (611) is hinged to the corresponding sliding block (41); the sliding seat (3) is provided with a locking member in the mounting groove (5), and the locking member locks the rotation of the driving disk (61) to prevent the two sliding blocks (41) from moving in a direction away from each other; the sliding seat (3) is fixed with a connecting shaft (6) in the mounting groove (5), and the connecting shaft (6) is vertically arranged, and the driving disk (61) is connected to the connecting shaft (6) when rotating. The connecting shaft (6) is connected to the connecting shaft (6), and the connecting shaft (6) is located at the lower side of the driving disk (61) and is also rotatably connected to a ratchet (62). A ratchet pawl (613) is hinged on the lower side of the driving disk (61), and the ratchet pawl (613) meshes with the inner teeth of the ratchet (62). A spring sheet (614) is also installed on the lower side of the driving disk (61), and the spring sheet (614) abuts against the ratchet pawl (613); the locking member is configured as a locking rack (7), and the locking rack (7) is slidably arranged in the mounting groove (5), and a gear portion (621) is formed on the peripheral side of the ratchet (62); the locking rack (7) slides and meshes with the gear portion (621) to lock the rotation of the ratchet (62);The slide seat (3) is located in the mounting groove (5) and is rotatably connected to a first linkage wheel (8); the locking rack (7) is rotatably connected to a second linkage wheel (9); a linkage rod (81) is eccentrically arranged on the first linkage wheel (8); a linkage groove (91) is provided on the second linkage wheel (9); the linkage groove (91) is arranged in an arc shape, and the center of curvature of the linkage groove (91) is located at the center of the second linkage wheel (9); the bottom wall of the linkage groove (91) is high at both ends and low in the middle; the lowest point of the linkage groove (91) is the initial part (911); the highest points at both ends of the linkage groove (91) are the driving parts (912); the linkage rod (81) is slidably matched with the linkage groove (91); in the initial state, the linkage rod The end of the locking rack (81) is located at the initial part (911) of the linkage groove (91), and the slide seat (3) is also rotatably connected with a driving wheel (101), and the driving wheel (101) is meshed with the first linkage wheel (8). A driving rack (17) is laid on the body (1), and the driving wheel (101) is meshed with the driving rack (17) and moves and rotates on the driving rack (17); the slide seat (3) is provided with a first sliding groove (20) on the side wall of the installation groove (5), and the end of the locking rack (7) slides in the first sliding groove (20), and the slide seat (3) is provided with a return spring (201) in the first sliding groove (20), and the length direction of the return spring (201) is consistent with the sliding direction of the locking rack (7). The directions of the two guide rails are consistent, one end of the return spring (201) is connected to the locking rack (7), and the other end of the return spring (201) is connected to the groove wall of the first slide groove (20); a liquid spraying pipe (33) is slidably arranged on the slide seat (3), and the liquid spraying port of the liquid spraying pipe (33) always faces the main shaft on the front side of the tool holder (13) in the direction of travel; a support seat (32) is slidably arranged on the slide seat (3), and the liquid spraying pipe (33) is installed on the support seat (32); the slide seat (3) is located in the installation groove (5) and is slidably arranged with a linkage rack (40), the sliding direction of the linkage rack (40) is consistent with the sliding direction of the slide seat (3), and the linkage rack (40) and the support seat (32) are connected by a connecting rod (50). The linkage rack (40) is located on the upper side of the second linkage wheel (9); when the first linkage wheel (8) drives the second linkage wheel (9) to slide, the second linkage wheel (9) meshes with the linkage rack (40); the slide seat (3) is provided with a second slide groove (30) on the opposite side walls of the installation groove (5); the linkage rack (40) slides in the second slide groove (30), and the two ends of the linkage rack (40) correspond to the two second slide grooves (30); the slide seat (3) is provided with an abutment spring (301) in the second slide groove (30), one end of the abutment spring (301) is connected to the linkage rack (40), and the other end of the abutment spring (301) is connected to the inner wall of the second slide groove (30). ; 2. The turning device for a wind turbine main shaft according to claim 1, characterized in that: Two support assemblies (2) are provided, and the two support assemblies (2) are respectively located on the front side and the rear side of the tool holder (13) in the direction of travel of the tool.

3. The turning device for a wind turbine main shaft according to claim 1, characterized in that: A screw rod (14) is rotatably connected to the machine body (1), and a driving motor for driving the screw rod (14) to rotate is installed on the machine body (1); the slide seat (3) is threadedly connected to the screw rod (14); a guide block (16) is also installed on the machine body (1); the slide seat (3) and the guide block (16) are plug-in and slidingly matched.

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