A wind turbine rotor locking device

Abstract

The present invention belongs to the field of power generation equipment, in particular to a wind wheel locking device for a wind turbine generator set. Aiming at the problems of inconvenient operation and too concentrated limiting structures in the existing invention, the following scheme is proposed, which comprises a wheel hub and a positioning frame rotatably connected to the right side of the wheel hub, a rotating rod is rotatably sleeved on a hole on the right side of the top of the positioning frame, the bottom end of the rotating rod surface extends to the inside of the positioning frame and is threadedly connected with a rack, a connecting wheel is meshed at the bottom of the left side of the rack, a transmission wheel is meshed at the bottom of the connecting wheel, the axes of the transmission wheel and the connecting wheel are both rotatably connected to the inside of the positioning frame, the rotating rod can drive the connecting wheel to rotate through the rack, the connecting wheel can drive the toothed plate to rotate through the transmission wheel, the rack and the toothed plate can drive the transmission plate to rotate through the toothed rod, the transmission plate drives the clamping mechanism to clamp into the hole on the right side of the wheel hub, and the clamping mechanism can drive the limiting mechanism to clamp into the inside of the limiting groove, thereby limiting the wheel hub and the positioning frame.

Description

Technical Field

[0001] The present invention relates to the technical field of power generation equipment, and in particular to a wind wheel locking device for a wind turbine generator set. Background Art

[0002] The wind turbine needs to limit the position of the wind wheel during installation and use, and a wind wheel locking device is needed at this time. Patent application number CN201310154948.8 discloses a wind turbine wind wheel locking structure. The matching and complete set of external splines and internal splines of the present invention can maintain good concentricity during use, and have high installation flexibility. After engagement, each meshing tooth can be subjected to uniform, balanced, reliable and stable force, so that the wind wheel swivel and the frame can be accurately, reliably and effectively locked, and the locking force is reliable, stable and practical.

[0003] However, the current wind turbine rotor locking structure also has some problems. For example, the limiting structure uses bolts, etc., and the user needs to use a wrench to rotate and adjust during the locking and loosening process, which is very inconvenient to operate. Moreover, the limit is only performed at one point, and the limiting part is subjected to great pressure, which can easily cause structural deformation, which brings inconvenience to subsequent use. Summary of the invention

[0004] Based on the technical problems that the background technology is inconvenient to operate and the limiting structures are too concentrated in one place, the present invention proposes a wind wheel locking device for a wind turbine generator set.

[0005] The present invention proposes a wind wheel locking device for a wind turbine generator set, comprising a hub and a positioning frame rotatably connected to the right side of the hub, a rotating rod is rotatably sleeved on a hole on the right side of the top of the positioning frame, the bottom end of the rotating rod surface extends to the interior of the positioning frame and is threadedly connected to a rack, a connecting wheel is meshed at the bottom of the left side of the rack, a transmission wheel is meshed at the bottom of the connecting wheel, the axes of the transmission wheel and the connecting wheel are both rotatably connected to the interior of the positioning frame, a toothed plate is meshed on the right side of the transmission wheel, and a toothed rod is meshed on the left side of the rack and the toothed plate, and the toothed rod is meshed on the left side of the rack and the toothed plate. The axis of the rod is hinged to the inside of the positioning frame, the left end of the gear rod is hinged with a transmission plate, the end of the transmission plate away from the gear rod is hinged with a clamping mechanism, the top and bottom ends of the internal cavity of the wheel hub are hinged to the limiting mechanism, the rotating rod can drive the connecting wheel to rotate through the rack, the connecting wheel can drive the toothed plate to rotate through the transmission wheel, the rack and the toothed plate can drive the transmission plate to rotate through the gear rod, the transmission plate drives the clamping mechanism to snap into the hole on the right side of the wheel hub, the clamping mechanism can drive the limiting mechanism to snap into the inside of the limiting groove, thereby limiting the wheel hub and the positioning frame.

[0006] Preferably, the clamping mechanism comprises an articulated plate, a movable plate, a transmission disc, a transmission belt, a passive wheel, a sliding frame, a sliding hole plate and a clamping block; the surface of the articulated plate is hinged to an end of the transmission plate away from the toothed rod; the left end of the articulated plate is hinged to the left side of the interior of the positioning frame; the right end of the articulated plate is hinged to one end of the movable plate; the end of the movable plate away from the articulated plate is hinged to the surface of the transmission disc; the axis of the transmission disc is rotatably connected to the interior of the positioning frame; the transmission belt is arranged between the transmission disc and the interior of the passive wheel; the transmission disc is transmitted to the passive wheel through the transmission belt The axis of the passive wheel is rotatably connected to the inside of the positioning frame, the front side of the passive wheel is welded to the rear side of the sliding frame, the front side of the sliding frame is slidably connected to the hole of the sliding hole plate, the left side of the sliding hole plate is welded to the right side of the clamping block, the surface of the clamping block is slidably connected to the hole on the left side of the positioning frame, the transmission plate can drive the movable plate to rotate through the hinge plate, the movable plate can drive the transmission belt to rotate through the transmission disk, the transmission belt can drive the sliding frame to rotate through the passive wheel, and the sliding frame can drive the clamping block to move through the sliding hole plate, so that the clamping block is stuck in the hole on the right side of the wheel hub.

[0007] Preferably, the limiting mechanism comprises a connecting block, a short rod, an auxiliary rod, a pinion, a gear rack, a passive rod, an auxiliary rack, a hinge block and a limiting block, the surface of the connecting block is slidably connected to the hole on the right side of the wheel hub, the left side of the connecting block is hinged to the right end of the short rod, the left end of the short rod is hinged to one end of the auxiliary rod, the end of the auxiliary rod away from the short rod is welded to the front side of the pinion, the axis of the pinion is rotatably connected to the cavity inside the wheel hub, the tooth surface of the pinion meshes with the tooth surface of the gear rack, the hole of the gear rack is rotatably connected to the cavity inside the wheel hub, the right end of the gear rack is hinged to the right end of the passive rod, and the The left end of the moving rod is hinged to one end of the auxiliary frame, the hole of the auxiliary frame is hinged to the cavity inside the wheel hub, the end of the auxiliary frame away from the passive rod is hinged to the left side of the hinge block, the right side of the hinge block is slidably connected to the left side of the limit block, the surface of the limit block is slidably connected to the hole inside the right side of the wheel hub, the connecting block is squeezed, the connecting block can drive the auxiliary rod to rotate through the short rod, the auxiliary rod can drive the gear rack to rotate through the pinion, the gear rack can drive the auxiliary frame to rotate through the passive rod, the auxiliary frame can drive the limit block to move through the hinge block, the limit block is stuck in the inside of the limit groove, thereby limiting the wheel hub and the positioning frame.

[0008] Preferably, a return spring is bolted to the left side of the internal cavity of the wheel hub, and the right side of the return spring is bolted to the left side of the auxiliary frame. The return spring can push the auxiliary frame to the right, so that the auxiliary frame can be driven to rotate and return to its original position, so that the limit block in the normal state will not be driven to be stuck in the limit groove of the positioning frame.

[0009] Preferably, the right side of the rack is slidably connected to the right side inside the positioning frame, the left side of the rack is a toothed structure, the rack is slidably arranged with the positioning frame through a slide rail, so that the rack can move up and down smoothly, the rotating rod can drive the rack to rotate, and the rack can drive the connecting wheel to rotate.

[0010] Preferably, the right side of the tooth plate is slidably connected to the right side inside the positioning frame, the top of the left side of the rack and the bottom of the left side of the tooth plate are respectively connected to the right sides of the two gear rods, and the tooth plate is slidably arranged with the positioning frame through a slide rail, so that the tooth plate can move up and down smoothly, the rack and the tooth plate can drive the gear rod to rotate, and the gear rod can drive the transmission plate to rotate, thereby ensuring smooth structural transmission.

[0011] Preferably, one end of the movable plate close to the transmission disk is inclined to the left, and the connection between the movable plate and the transmission disk is located near the axis of the transmission disk. The inclined state of the movable plate facilitates the hinged plate to drive the movable plate to rotate, and also facilitates the movable plate to drive the transmission disk to rotate. The connection between the transmission disk and the movable plate facilitates the movable plate to quickly drive the transmission disk to rotate.

[0012] Preferably, the transmission belt is located on the rear side of the hinged plate, and the passive wheel is located on the rear side of the block. The positions of the transmission belt and the hinged plate can avoid mutual collision and conflict of the structures, thereby ensuring that the structure can rotate smoothly. The positions of the passive wheel and the block can ensure smooth transmission of the passive wheel.

[0013] Preferably, the left end of the passive rod is inclined inwardly, and the end of the auxiliary frame away from the hinge block is inclined to the right. The inclination of the passive rod facilitates the gear rack to drive the passive rod to rotate, and the passive rod can drive the auxiliary frame to rotate. The inclination of the auxiliary frame facilitates the passive rod to drive the auxiliary frame to rotate, and the auxiliary frame can drive the hinge block to rotate.

[0014] Preferably, limiting grooves are provided at the top and bottom of the left middle end of the positioning frame, and the limiting block corresponds to the limiting groove. The limiting groove can be used to slide the limiting block into, so that the limiting block can be conveniently connected to the positioning frame and the wheel hub, and the wheel hub can be locked to ensure the locking effect.

[0015] The beneficial effects of the present invention are as follows: the rotating rod can drive the connecting wheel to rotate through the rack, the connecting wheel can drive the toothed plate to rotate through the transmission wheel, the rack and the toothed plate can drive the transmission plate to rotate through the rack rod, the transmission plate can drive the movable plate to rotate through the hinged plate, the movable plate can drive the transmission belt to rotate through the transmission disc, the transmission belt can drive the sliding frame to rotate through the passive wheel, the sliding frame can drive the clamping block to move through the sliding hole plate, so that the clamping block is stuck in the hole on the right side of the wheel hub, and then the connecting block is squeezed, the connecting block can drive the auxiliary rod to rotate through the short rod, the auxiliary rod can drive the gear rack to rotate through the pinion, the gear rack can drive the auxiliary frame to rotate through the passive rod, the auxiliary frame can drive the limit block to move through the hinged block, the limit block is stuck in the inside of the limit groove, thereby limiting the wheel hub and the positioning frame. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a front view structural schematic diagram of a wind rotor locking device for a wind turbine generator set proposed by the present invention;

[0017] Figure 2 A schematic diagram of the internal structure of a positioning frame of a wind rotor locking device of a wind turbine generator set proposed by the present invention;

[0018] Figure 3 A schematic diagram of the structure of a clamping mechanism of a wind rotor locking device of a wind turbine generator set proposed by the present invention;

[0019] Figure 4 A schematic diagram of the structure of a limiting mechanism of a wind wheel locking device of a wind turbine generator set proposed by the present invention;

[0020] Figure 5 A schematic diagram of a transmission belt structure of a wind turbine rotor locking device proposed by the present invention;

[0021] Figure 6 A three-dimensional schematic diagram of a transmission disc of a wind rotor locking device of a wind turbine generator set proposed by the present invention;

[0022] Figure 7 This is a three-dimensional schematic diagram of a passive wheel of a wind wheel locking device of a wind turbine generator set proposed by the present invention.

[0023] In the figure: 1 wheel hub, 2 clamping mechanism, 21 hinge plate, 22 movable plate, 23 transmission disc, 24 transmission belt, 25 passive wheel, 26 sliding frame, 27 slide plate, 28 clamping block, 3 limiting mechanism, 31 connecting block, 32 short rod, 33 auxiliary rod, 34 pinion, 35 gear rack, 36 passive rod, 37 auxiliary frame, 38 hinge block, 39 limiting block, 4 positioning frame, 5 rotating rod, 6 rack, 7 connecting wheel, 8 transmission wheel, 9 tooth plate, 10 gear rod, 11 transmission plate, 12 return spring. DETAILED DESCRIPTION

[0024] The present invention will be further explained below in conjunction with specific embodiments.

[0025] Example

[0026] refer to Figure 1-7In this embodiment, a wind wheel locking device of a wind turbine generator set is proposed, including a hub 1 and a positioning frame 4 rotatably connected to the right side of the hub 1, the right side of the positioning frame 4 is connected to the wind turbine, and the output end of the wind turbine is connected to the hub 1. A rotating rod 5 is rotatably sleeved on the hole on the right side of the top of the positioning frame 4, and the bottom end of the surface of the rotating rod 5 extends into the interior of the positioning frame 4 and is threadedly connected with a rack 6. The rotating rod 5 adopts a screw structure, and the rotating rod 5 can drive the rack 6 to move up and down. The right side of the rack 6 is slidably connected to the right side of the interior of the positioning frame 4, and the left side of the rack 6 is a toothed structure. The rack 6 is slidably arranged with the positioning frame 4 through a slide rail, so that the rack 6 can move up and down smoothly, the rotating rod 5 can drive the rack 6 to rotate, and the rack 6 can drive the connecting wheel 7 to rotate, and the bottom of the left side of the rack 6 A connecting wheel 7 is meshed, and a transmission wheel 8 is meshed at the bottom of the connecting wheel 7. The rack 6 can drive the connecting wheel 7 to rotate, and the connecting wheel 7 can drive the transmission wheel 8 to rotate. The axes of the transmission wheel 8 and the connecting wheel 7 are both connected to the internal rotation of the positioning frame 4. A toothed plate 9 is meshed on the right side of the transmission wheel 8, and the transmission wheel 8 can drive the toothed plate 9 to move up and down. A toothed rod 10 is meshed on the left side of the rack 6 and the toothed plate 9. The axis of the toothed rod 10 is hinged to the inside of the positioning frame 4. The rack 6 and the toothed plate 9 can drive the toothed rod 10 to rotate, and the toothed rod 10 can drive the transmission plate 11 to rotate. The right side of the toothed plate 9 is slidably connected to the right side of the inside of the positioning frame 4. The top of the left side of the rack 6 and the bottom of the left side of the toothed plate 9 are respectively connected to the right sides of the two toothed rods 10. The toothed plate 9 is connected to the positioning frame 4 through a slide rail. The frame 4 is slidingly arranged so that the tooth plate 9 can move up and down smoothly, the rack 6 and the tooth plate 9 can drive the tooth rod 10 to rotate, so that the tooth rod 10 can drive the transmission plate 11 to rotate, thereby ensuring the smooth transmission of the structure. The left end of the tooth rod 10 is hinged with a transmission plate 11, and the tooth rod 10 can drive the transmission plate 11 to rotate. The end of the transmission plate 11 away from the tooth rod 10 is hinged with a clamping mechanism 2, and the clamping mechanism 2 corresponds to the wheel hub 1, and the transmission plate 11 can drive the clamping mechanism 2. The top and bottom ends of the internal cavity of the wheel hub 1 are both hinged with a limiting mechanism 3, and the limiting mechanism 3 corresponds to the positioning frame 4. The clamping mechanism 2 can drive the limiting mechanism 3 to rotate. The clamping mechanism 2 includes a hinged plate 21, a movable plate 22, a transmission disc 23, a transmission belt 24, a passive wheel 25, a sliding frame 26, Slide plate 27 and block 28, the surface of hinged plate 21 is hinged to one end of transmission plate 11 away from gear rod 10, transmission plate 11 can drive hinged plate 21 to rotate, the left end of hinged plate 21 is hinged to the left side inside positioning frame 4, the right end of hinged plate 21 is hinged to one end of movable plate 22, hinged plate 21 can drive movable plate 22 to rotate, one end of movable plate 22 away from hinged plate 21 is hinged to the surface of transmission disk 23, movable plate 22 can drive transmission disk 23 to rotate, the axis of transmission disk 23 is connected with the internal rotation of positioning frame 4, transmission disk 23 can drive the transmission of other structures, the end of movable plate 22 close to transmission disk 23 is tilted to the left, the connection between movable plate 22 and transmission disk 23 is located near the axis of transmission disk 23,The inclined state of the movable plate 22 makes it convenient for the hinged plate 21 to drive the movable plate 22 to rotate, and also makes it convenient for the movable plate 22 to drive the transmission plate 23 to rotate. The connection between the transmission plate 23 and the movable plate 22 makes it convenient for the movable plate 22 to quickly drive the transmission plate 23 to rotate. The transmission belt 24 is arranged between the transmission plate 23 and the inside of the passive wheel 25. The transmission plate 23 is connected to the passive wheel 25 through the transmission belt 24. The transmission plate 23 can drive the transmission belt 24 to rotate. The transmission belt 24 can drive the passive wheel 25 to rotate. The axis of the passive wheel 25 is connected to the inside of the positioning frame 4 for rotation. The front side of the passive wheel 25 is welded to the rear side of the sliding frame 26. The passive wheel 25 can drive the sliding frame 26 to rotate. The front side of the sliding frame 26 is slidably connected to the hole of the sliding hole plate 27. The sliding frame 2 6 can drive the sliding plate 27 to rotate, the left side of the sliding plate 27 is welded to the right side of the block 28, the sliding plate 27 can drive the block 28 to move, the surface of the block 28 is slidably connected to the hole on the left side of the positioning frame 4, and the movable block 28 can be inserted into the hole on the right side of the hub 1, the transmission belt 24 is located at the rear side of the hinge plate 21, and the passive wheel 25 is located at the rear side of the block 28. The position of the transmission belt 24 and the hinge plate 21 can avoid the mutual collision of the structures, avoid structural conflict, and ensure that the structure can rotate smoothly. The position of the passive wheel 25 and the block 28 can ensure the smooth transmission of the passive wheel 25. The limiting mechanism 3 includes a connecting block 31, a short rod 32, an auxiliary rod 33, a pinion 34, a gear rack 35, a passive rod 36, an auxiliary rack 37, a hinge block 38 and a limiting block 39, the surface of the connecting block 31 is slidably connected with the hole on the right side of the hub 1, the connecting block 31 corresponds to the clamping block 28, the left side of the connecting block 31 is hinged with the right end of the short rod 32, the clamping block 28 can drive the connecting block 31 to move, the connecting block 31 can drive the short rod 32 to rotate, the left end of the short rod 32 is hinged with one end of the auxiliary rod 33, the end of the auxiliary rod 33 away from the short rod 32 is welded to the front side of the pinion 34, the short rod 32 can drive the auxiliary rod 33 to rotate, the auxiliary rod 33 can drive the pinion 34 to rotate, the axis of the pinion 34 is rotatably connected with the cavity inside the hub 1, the tooth surface of the pinion 34 is meshed with the tooth surface of the rack 35, the pinion 34 can drive the rack 35 to rotate, the hole of the rack 35 is rotatably connected with the cavity inside the hub 1, the rack 3 5 is hinged to the right end of the passive rod 36, the gear rack 35 can drive the passive rod 36 to rotate, the left end of the passive rod 36 is hinged to one end of the auxiliary frame 37, the passive rod 36 can drive the auxiliary frame 37 to rotate, the hole of the auxiliary frame 37 is hinged to the cavity inside the wheel hub 1, the end of the auxiliary frame 37 away from the passive rod 36 is hinged to the left side of the hinge block 38, the auxiliary frame 37 can drive the hinge block 38 to rotate, the left end of the passive rod 36 is tilted inward, and the end of the auxiliary frame 37 away from the hinge block 38 is tilted to the right, the inclination of the passive rod 36 facilitates the gear rack 35 to drive the passive rod 36 to rotate, the passive rod 36 can drive the auxiliary frame 37 to rotate, the inclination of the auxiliary frame 37 facilitates the passive rod 36 to drive the auxiliary frame 37 to rotate, and the auxiliary frame 37 can drive the hinge block 38 to rotate.The right side of the hinge block 38 is slidably connected to the left side of the limit block 39, and the surface of the limit block 39 is slidably connected to the hole inside the right side of the wheel hub 1. The hinge block 38 can drive the limit block 39 to move, so that the limit block 39 can be stuck in the limit groove on the left side of the positioning frame 4. A return spring 12 is bolted to the left side of the internal cavity of the wheel hub 1, and the right side of the return spring 12 is bolted to the left side of the auxiliary frame 37. The return spring 12 can push the auxiliary frame 37 to the right, so that the auxiliary frame 37 can be driven to rotate and then return to its original position, so that the limit block 39 in the normal state will not be driven to be stuck in the limit groove of the positioning frame 4. The top and bottom of the middle end of the left side of the positioning frame 4 are both provided with limit grooves, and the limit block 39 corresponds to the limit groove. The limit groove can be used to slide into the limit block 39, which is convenient for the limit block 39 to connect the positioning frame 4 and the wheel hub 1, and the wheel hub 1 can be locked to ensure the locking effect. The rotating rod 5 can drive the connection through the rack 6 The wheel 7 rotates, the connecting wheel 7 can drive the tooth plate 9 to rotate through the transmission wheel 8, the rack 6 and the tooth plate 9 can drive the transmission plate 11 to rotate through the toothed rod 10, the transmission plate 11 can drive the movable plate 22 to rotate through the hinge plate 21, the movable plate 22 can drive the transmission belt 24 to rotate through the transmission disc 23, the transmission belt 24 can drive the sliding frame 26 to rotate through the passive wheel 25, the sliding frame 26 can drive the block 28 to move through the sliding hole plate 27, let the block 28 be stuck in the hole on the right side of the hub 1, and then squeeze the connecting block 31, the connecting block 31 can drive the auxiliary rod 33 to rotate through the short rod 32, the auxiliary rod 33 can drive the rack 35 to rotate through the pinion 34, the rack 35 can drive the auxiliary frame 37 to rotate through the passive rod 36, the auxiliary frame 37 can drive the limit block 39 to move through the hinge block 38, and the limit block 39 is stuck in the inside of the limit groove, so as to limit the hub 1 and the positioning frame 4.

[0027] Working principle: rotate the rotating rod 5, the rotating rod 5 can drive the rack 6 to move downward, the rack 6 can drive the connecting wheel 7 to rotate clockwise, the connecting wheel 7 can drive the transmission wheel 8 to rotate counterclockwise, the transmission wheel 8 can drive the toothed plate 9 to move upward, the rack 6 and the toothed plate 9 can drive the gear rod 10 to rotate, the gear rod 10 can drive the transmission plate 11 to rotate, the transmission plate 11 can drive the hinged plate 21 to rotate, the hinged plate 21 can drive the movable plate 22 to rotate, the movable plate 22 can drive the transmission disk 23 to rotate, the transmission disk 23 can drive the transmission belt 24 to rotate, the transmission belt 24 can drive the passive wheel 25 to rotate, the passive wheel 25 can drive the sliding frame 26 to rotate, the sliding frame 26 drives the sliding hole plate 27 to move left, the sliding hole plate 27 can drive the card block 2 8 moves to the left, the clamping block 28 can move to the left and enter the hole on the right side of the wheel hub 1. During the sliding process of the clamping block 28 to the left, it drives the connecting block 31 to move to the left, the connecting block 31 can drive the short rod 32 to move to the left, the short rod 32 can drive the auxiliary rod 33 to move to the left, the auxiliary rod 33 can drive the pinion 34 to rotate, the pinion 34 can drive the gear rack 35 to rotate to the left, the gear rack 35 can drive the passive rod 36 to rotate to the left, the passive rod 36 can drive the auxiliary frame 37 to rotate, the auxiliary frame 37 can drive the hinge block 38 to move to the right, the hinge block 38 can drive the limit block 39 to move to the right, the limit block 39 can be stuck in the limit groove on the left side of the positioning frame 4, and the wheel hub 1 and the positioning frame 4 can be locked by the limit block 39 and the clamping block 28.

[0028] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical scheme and inventive concept of the present invention within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A wind turbine rotor locking device, comprising a wheel hub (1) and a positioning frame (4) rotatably connected to the right side of the wheel hub (1), characterized in that: A rotating rod (5) is rotatably sleeved on a hole on the right side of the top of the positioning frame (4); the bottom end of the surface of the rotating rod (5) extends into the interior of the positioning frame (4) and is threadedly connected with a rack (6); a connecting wheel (7) is meshed at the bottom of the left side of the rack (6); a transmission wheel (8) is meshed at the bottom of the connecting wheel (7); the axes of the transmission wheel (8) and the connecting wheel (7) are both rotatably connected to the interior of the positioning frame (4); a toothed plate (9) is meshed on the right side of the transmission wheel (8); the left sides of the rack (6) and the toothed plate (9) are both meshed with a toothed rod (10); the axis of the toothed rod (10) is hinged to the interior of the positioning frame (4); the left end of the toothed rod (10) is hinged to a transmission plate (11); the transmission plate (11) is away from the toothed plate. One end of the rod (10) is hinged with a clamping mechanism (2), the top and bottom ends of the internal cavity of the wheel hub (1) are hinged with a limiting mechanism (3), the right side of the rack (6) is slidably connected to the right side of the positioning frame (4), the left side of the rack (6) is a toothed structure, the right side of the toothed plate (9) is slidably connected to the right side of the positioning frame (4), the top of the left side of the rack (6) and the bottom of the left side of the toothed plate (9) are respectively connected to the right sides of the two toothed rods (10), the clamping mechanism (2) comprises a hinge plate (21), a movable plate (22), a transmission disc (23), a transmission belt (24), a passive wheel (25), a sliding frame (26), a sliding hole plate (27) and a clamping block (28), the surface of the hinge plate (21) is connected to the transmission The plate (11) is hinged at one end away from the gear rod (10), the left end of the hinged plate (21) is hinged to the left side of the interior of the positioning frame (4), the right end of the hinged plate (21) is hinged to one end of the movable plate (22), the end of the movable plate (22) away from the hinged plate (21) is hinged to the surface of the transmission disk (23), the axis of the transmission disk (23) is rotatably connected to the interior of the positioning frame (4), the transmission belt (24) is arranged between the transmission disk (23) and the interior of the passive wheel (25), the transmission disk (23) is transmission-connected to the passive wheel (25) through the transmission belt (24), the axis of the passive wheel (25) is rotatably connected to the interior of the positioning frame (4), and the front side of the passive wheel (25) is connected to the sliding frame (26). ), the front side of the sliding frame (26) is slidably connected to the hole of the sliding hole plate (27), the left side of the sliding hole plate (27) is welded to the right side of the clamping block (28), the surface of the clamping block (28) is slidably connected to the hole on the left side of the positioning frame (4), the limiting mechanism (3) comprises a connecting block (31), a short rod (32), an auxiliary rod (33), a pinion (34), a gear rack (35), a passive rod (36), an auxiliary frame (37), a hinge block (38) and a limiting block (39), the surface of the connecting block (31) is slidably connected to the hole on the right side of the wheel hub (1), the left side of the connecting block (31) is hinged to the right end of the short rod (32), and the left end of the short rod (32) is hinged to one end of the auxiliary rod (33),The end of the auxiliary rod (33) away from the short rod (32) is welded to the front side of the pinion (34), the axis of the pinion (34) is rotatably connected to the cavity inside the wheel hub (1), the tooth surface of the pinion (34) meshes with the tooth surface of the gear rack (35), the hole of the gear rack (35) is rotatably connected to the cavity inside the wheel hub (1), the right end of the gear rack (35) is hinged to the right end of the passive rod (36), the left end of the passive rod (36) is hinged to one end of the auxiliary frame (37), the hole of the auxiliary frame (37) is hinged to the cavity inside the wheel hub (1), the end of the auxiliary frame (37) away from the passive rod (36) is hinged to the left side of the hinge block (38), the right side of the hinge block (38) is slidably connected to the left side of the limit block (39), and the surface of the limit block (39) is slidably connected to the hole inside the right side of the wheel hub (1).

2. A wind turbine rotor locking device according to claim 1, characterized in that: A return spring (12) is bolted to the left side of the inner cavity of the wheel hub (1), and the right side of the return spring (12) is bolted to the left side of the auxiliary frame (37).

3. The wind turbine rotor locking device of claim 1, characterized in that: One end of the movable plate (22) close to the transmission disc (23) is inclined to the left, and the connection between the movable plate (22) and the transmission disc (23) is located near the axis of the transmission disc (23).

4. The wind turbine rotor locking device of claim 1, characterized in that: The transmission belt (24) is located at the rear side of the hinge plate (21), and the passive wheel (25) is located at the rear side of the clamping block (28).

5. The wind turbine rotor locking device of claim 1, characterized in that: The left end of the passive rod (36) is inclined inwardly, and the end of the auxiliary frame (37) away from the hinge block (38) is inclined rightward.

6. The wind turbine rotor locking device of claim 1, characterized in that: The top and bottom of the left middle end of the positioning frame (4) are both provided with limiting grooves, and the limiting blocks (39) correspond to the limiting grooves.

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