Wind wheel locking device and wind generating set

Abstract

The utility model relates to a wind wheel locking device and a wind generating set. The wind wheel locking device comprises a locking plate body, a telescopic assembly, a connecting plate and a locking assembly. The lock plate body comprises a wind wheel fastening part and a locking box body part, a wind wheel connecting hole used for being connected with a wind wheel is formed in the wind wheel fastening part, and a locking box body fastening hole used for installing a locking assembly is formed in the locking box body part; the connecting plate is partially arranged in the locking box body part in a penetrating mode and connected with the locking box body part through the telescopic assembly, and a lock pin hole matched with a wind wheel lock pin and a connecting plate fastening hole used for installing the locking assembly are formed in the connecting plate. The locking assembly is arranged on the locking box body fastening hole and the connecting plate fastening hole in a penetrating mode. Compared with the prior art, the wind wheel fixing device has the advantages of being capable of achieving fastening of any wind wheel azimuth angle and the like.

Description

Technical Field

[0001] The utility model relates to the technical field of wind power generation, in particular to a wind wheel locking device and a wind power generator set. Background Art

[0002] In a wind turbine generator set, if the hub or parts (including large ones) in the transmission chain of the wind turbine set need to be replaced, maintained or serviced, since the hub-mounted blades are the input part of the entire unit transmission chain, they will rotate under the action of wind load. To ensure the safety of the operator, the hub and the nacelle need to remain relatively still at this time. The wind rotor locking device is a necessary device for ensuring the safety of the unit and operators during unit maintenance, which is divided into high-speed end locking and low-speed end locking. The high-speed end locking device is located at the end of the unit transmission chain (gearbox output end). The load on this device is greatly reduced after the gearbox gear set is unloaded. The structure is relatively simple. Generally, within the normal function or safe load range of the gearbox, normal maintenance and maintenance operations can be locked at the high-speed end. The low-speed end is located at the interface between the wind rotor and the nacelle, which directly bears the large load transmitted by the wind rotor. Generally, when major component replacement or extreme loads such as high wind speed, gearbox stuck, etc. exceed the gearbox load or gearbox function loss, component replacement and other operations need to bear large loads at the low-speed end to lock the wind rotor.

[0003] Invention patent CN202110980588.1 discloses a wind turbine rotor locking device, with multiple wind turbine rotor lock holes on the flange, and two wind turbine rotor locks are inserted into the lock holes and locked after rotating a certain distance. Invention patent CN202011452980.0 discloses a wind turbine rotor locking device and locking method, with multiple wind turbine rotor lock holes on the flange, fully automatic operation, and two wind turbine rotor locks are inserted into the lock holes and locked after rotating a certain distance. Invention patent CN202010420185.7 discloses a flexible wind turbine rotor locking device for a typhoon-resistant wind turbine braking system, with a pulley group and a rotating buffer mechanism of a spring structure. After the fan rotates to a certain angle, the locking pin is inserted into the lock hole and locked, controlling the wind energy to swing within a certain angle range. Invention patent 202310671013.0 discloses a detachable spindle locking plate, the outer edge of which is a gear structure, and the fixed lock is a matching gear locking device. The outer edge tooth groove meshing limit can achieve the function of locking the spindle flange with very little rotation. However, the above devices all need to be rotated a certain distance to lock, and cannot be locked in situ at any position.

[0004] Invention patent 202010368454.X discloses a wind wheel locking device and a wind wheel. Two circular tracks are designed on the locking disk on the wind wheel, and a clamping (along the radial direction of the locking disk) circular track tooling is designed on the main engine seat or bearing seat. The wind wheel is prevented from rotating by the friction of the circular track, and slots are arranged at intervals to achieve the function of completely locking the wind wheel. The device can limit the rotation of the wind wheel by friction (similar to braking) at any position, but it still needs to rotate a certain distance to be completely locked, and it cannot guarantee complete locking at any position. Utility Model Content

[0005] The utility model aims to provide a wind wheel locking device and a wind turbine generator set, which can reliably lock the wind wheel at any azimuth angle of the wind wheel.

[0006] The purpose of the utility model can be achieved by the following technical solutions: A wind wheel locking device, including a locking plate body, a telescopic assembly, a connecting plate and a locking assembly;

[0007] The locking plate body comprises a wind wheel fastening portion and a locking box portion, the wind wheel fastening portion is provided with a connecting hole, and the locking box portion is provided with a locking box fastening hole for installing a locking assembly;

[0008] The connecting plate is partially inserted into the locking box body and connected to the locking box body through a telescopic assembly. The connecting plate is provided with a locking pin hole matching the wind wheel lock pin and a connecting plate fastening hole for installing the locking assembly.

[0009] The locking assembly is inserted into the fastening holes of the locking box and the fastening holes of the connecting plate.

[0010] Preferably, locking box parts are symmetrically provided at both ends of the lock plate body, and a first locking box fastening hole and a second locking box fastening hole are provided on the locking box part, the first locking box fastening hole is an oblong arc hole or a waist-shaped hole, and the second locking box fastening hole is an arc-shaped notch opened at the end of the locking box part;

[0011] The locking box parts at both ends are connected to connecting plates through telescopic components. Two connecting plate fastening holes corresponding to the first locking box fastening holes and the second locking box fastening holes are provided on the connecting plates at both ends. The connecting plate fastening holes are all long arc holes or waist-shaped holes.

[0012] Further preferably, the first locking box fastening hole and the connecting plate fastening hole are long arc-shaped holes, and the first locking box fastening hole, the second locking box fastening hole and the connecting plate fastening hole are coaxially arranged.

[0013] More preferably, the first locking box fastening hole, the second locking box fastening hole, and the connecting plate fastening hole are coaxially arranged with the main shaft.

[0014] Further preferably, the widths of the first locking box fastening hole, the second locking box fastening hole and the connecting plate fastening hole are the same, the shapes of the ends of the second locking box fastening hole and the connecting plate fastening hole match, and the locking assembly can be passed through the first locking box fastening hole and the connecting plate fastening hole or through the second locking box fastening hole and the connecting plate fastening hole.

[0015] More preferably, the first locking box fastening hole and the connecting plate fastening hole are long arc-shaped holes with the same central angle.

[0016] More preferably, the locking assembly comprises an upper arc wedge block, a lower arc pad block, a flat pad block and a wedge-shaped pad block;

[0017] The upper arc wedge block, the lower arc pad block, the flat pad block and the wedge-shaped pad block can form a cross-sectional structure matching the long arc hole, and the surface of the wedge-shaped pad block protrudes from the surfaces of the upper arc wedge block, the lower arc pad block and the flat pad block.

[0018] Preferably, the upper arc wedge block, wedge-shaped pad block, multiple flat pad blocks and lower arc pad block are arranged in sequence, one side of the wedge-shaped pad block contacts the upper arc wedge block, and the other side contacts the flat pad block, and both ends of the wedge-shaped pad block can extend out of the locking box fastening hole and the connecting plate fastening hole.

[0019] Preferably, both ends of the upper arc wedge block, the wedge-shaped pad block, the flat pad block and the lower arc pad block can extend out of the fastening holes of the locking box body and the fastening holes of the connecting plate.

[0020] Further preferably, the upper arc wedge block, the wedge-shaped pad block, the flat pad block and the lower arc pad block are all provided with handles.

[0021] Further preferably, the upper arc wedge block, the wedge-shaped pad block, the flat pad block and the lower arc pad block are all provided with positioning blocks for preventing them from detaching from the fastening holes.

[0022] Preferably, the locking assembly further comprises a mounting arm, a screw tensioner, a fastening head and a universal joint. The mounting arm is arranged on the upper arc wedge block and is threadedly connected to the screw tensioner. One end of the screw tensioner is connected to the wedge-shaped pad through a universal joint, and the other end is provided with a fastening head. The fastening head is screwed by a torque wrench tool to drive the screw tensioner to rotate, thereby causing the screw tensioner to translate along the mounting arm, thereby realizing the disassembly and assembly of the wedge-shaped pad, which is convenient and simple. Moreover, through this design, the locking assembly can form a double self-locking after installation, including the self-locking of the wedge-shaped pad and the self-locking of the screw.

[0023] Preferably, the telescopic assembly comprises an upper base, a lower base and a telescopic rod;

[0024] The upper base is arranged on the locking box body, the lower base is arranged on the connecting plate, one end of the telescopic rod is connected to the upper base, and the other end is connected to the lower base.

[0025] Preferably, the locking plate body further comprises a hoisting installation portion, which is located above the wind wheel fastening portion and between the locking box portions at both ends.

[0026] Further preferably, the hoisting installation portion is provided with 1 to 2 hoisting points.

[0027] Preferably, the hoisting installation portion is an arc-shaped plate, and a plurality of connection holes are evenly distributed along the circumferential direction of the arc-shaped plate.

[0028] Further preferably, the connecting hole corresponds to the bolt hole on the low-speed main shaft flange of the wind wheel.

[0029] Further preferably, the corresponding central angles at both ends of the fastening holes of the first locking box and the fastening holes of the connecting plate are not lower than the corresponding central angles at both ends of the adjacent bolt holes of the low-speed main shaft flange of the wind wheel, that is, the size of the long arc hole or the waist-shaped hole is designed according to the spacing between the adjacent bolt holes of the main shaft flange, ensuring that at least one group of adjacent main shaft flange bolt holes is within the range of the long arc hole or the waist-shaped hole.

[0030] Preferably, the wind wheel fastening portion is installed and fastened with bolts on the back side of the wind wheel low-speed main shaft flange through a connecting hole.

[0031] A method for using the above-mentioned wind wheel locking device comprises the following steps:

[0032] S1: retract the connecting plate into the locking plate body through the telescopic assembly;

[0033] S2: Install the lock plate body to the end of the wind wheel-main shaft fastening bolt of the main shaft flange and tighten it;

[0034] S3: Adjust the telescopic assembly to extend the connecting plate out of the locking box body, align the locking pin hole with the wind wheel lock pin, then insert the wind wheel lock pin, and then disconnect the telescopic assembly;

[0035] S4: According to the size of the long arc hole or waist-shaped hole, different locking components are combined to adapt;

[0036] S5: The connecting plate and the locking plate body are fastened by adapting the locking assembly.

[0037] A wind turbine generator set comprises the above-mentioned wind wheel locking device.

[0038] Compared with the prior art, the utility model has the following beneficial effects:

[0039] 1. The device of the utility model can reliably lock the wind wheel at any orientation angle of the wind wheel;

[0040] 2. The fastening hole and locking device of the utility model are reliable in force, and can be adapted to long arc holes or waist-shaped holes as needed. The wedge-shaped pad is self-locking after being stressed to prevent loosening;

[0041] 3. The wedge-shaped spacer of the utility model is installed by pre-tightening force of the installation arm and the screw mechanism, which is convenient for disassembly and assembly, real-time self-locking and reliable in structure;

[0042] 4. The utility model device can realize the simultaneous linkage load-bearing of the double wind wheel lock pins, and the double locks directly bear the forward and reverse loads of the wind wheel, which is more reliable;

[0043] 5. The device of the utility model is a modular component, which is easy to disassemble and assemble and can be reused;

[0044] 6. The device of the utility model can lock the wind wheel from the low speed end when the wind power generation equipment is assembled, large components are replaced or the gear box is stuck. BRIEF DESCRIPTION OF THE DRAWINGS

[0045] Figure 1 This is a schematic diagram of the installation position of the wind wheel locking device of the utility model;

[0046] Figure 2 This is a schematic diagram of the structure of the wind wheel locking device of the utility model;

[0047] Figure 3 This is a structural schematic diagram of the lock plate body of the utility model;

[0048] Figure 4 It is a structural schematic diagram of the telescopic assembly of the utility model;

[0049] Figure 5 This is a schematic diagram of the structure of the connecting plate of the utility model;

[0050] Figure 6 This is a structural schematic diagram of a locking assembly of the utility model;

[0051] Figure 7 This is a compression and fastening principle diagram of the left side of the device of the utility model when subjected to a counterclockwise wind wheel load;

[0052] Figure 8 This is a tension fastening principle diagram of the left side of the device of the utility model when it is subjected to clockwise wind wheel load;

[0053] Fig. 9 This is a schematic diagram of the common load-bearing locking principle of the two-way double-lock device of the utility model;

[0054] Fig.10 This is a detailed installation diagram of the device of the utility model;

[0055] Fig.11 This is a schematic diagram of the linkage load-bearing principle when the device of the utility model is used;

[0056] Fig.12 This is the optimal use state diagram of the counterclockwise wind wheel load of the utility model device;

[0057] Fig.13 This is the optimal use state diagram of the clockwise wind wheel load of the utility model device;

[0058] Fig.14 This is a structural schematic diagram of another locking assembly of the utility model;

[0059] In the figure: 1-locking plate body, 11-wind wheel fastening part, 111-connecting hole, 12-locking box part, 121-locking box fastening hole, 1211-first locking box fastening hole, 1212-second locking box fastening hole, 13-hoisting installation part, 2-telescopic assembly, 21-upper base, 22-lower base, 23-telescopic rod, 3-connecting plate, 31-locking pin hole, 32-connecting plate fastening hole, 33-telescopic assembly connection point, 4-locking Components, 41-upper arc wedge, 42-lower arc pad, 43-flat pad, 44-wedge pad, 45-mounting arm, 46-screw tensioner, 47-fastening head, 48-universal joint, 4-1-first locking piece, 4-2-second locking piece, 4-3-third locking piece, 4-4-fourth locking piece, a-wind wheel locking device, b-wind wheel, c-wind wheel lock, c1-wind wheel lock pin, d-main shaft, e-wind wheel-main shaft fastening bolt. DETAILED DESCRIPTION

[0060] The present invention is described in detail below in conjunction with the accompanying drawings and specific embodiments. This embodiment is implemented based on the technical solution of the present invention, and provides a detailed implementation method and a specific operation process, but the protection scope of the present invention is not limited to the following embodiments.

[0061] It should be noted that similar reference numerals and letters denote similar items in the following drawings, and therefore, once an item is defined in one drawing, further definition and explanation thereof is not required in subsequent drawings.

[0062] In conjunction with the accompanying drawings, some embodiments of the present invention are described in detail below. In the absence of conflict, the following embodiments and features in the embodiments can be combined with each other.

[0063] Example 1

[0064] A wind wheel locking device comprises a locking plate body 1, a telescopic assembly 2, a connecting plate 3 and a locking assembly 4.

[0065] The locking plate body 1 comprises a wind wheel fastening portion 11 and a locking box portion 12. The wind wheel fastening portion 11 is provided with a connecting hole 111. The locking box portion 12 is provided with a locking box fastening hole 121. The connecting plate is provided with a locking pin hole 31 and a connecting plate fastening hole 32.

[0066] The wind wheel fastening part 11 is connected to the wind wheel main shaft through the connecting hole 111, the locking box part 12 is connected to the connecting plate 3 through the telescopic component 2, the connecting plate 3 is partially penetrated into the locking box part 12, the locking box part 12 and the connecting plate 3 are fastened by the locking component 4 penetrated through the locking box fastening hole 121 and the connecting plate fastening hole 32, and the wind wheel lock pin can be inserted into the locking pin hole 31.

[0067] Example 2

[0068] A wind wheel locking device a, such as Figure 1 As shown, the lock pins are respectively connected to the wind wheel main shaft d and the wind wheel lock c, wherein the wind wheel main shaft d is rotatably arranged on the inner side of the main shaft support seat, and the wind wheel lock c is arranged on the outer side of the main shaft support seat.

[0069] The specific structure of the wind wheel locking device a is as follows Figure 2 As shown, it includes a lock plate body 1, a telescopic component 2, a connecting plate 3 and a locking component 4.

[0070] Among them, the specific structure of the lock plate body 1 is as follows Figure 3 As shown, it includes a wind wheel fastening part 11, a locking box part 12 and a hoisting installation part 13. The wind wheel fastening part 11 is located at the lower edge of the lock plate body 1, and is an arc-shaped structure. A plurality of connecting holes 111 are evenly distributed along the circumferential direction on the wind wheel fastening part 11, and the connecting holes 111 are used to install and fasten the wind wheel with the bolts on the back of the low-speed main shaft flange. The locking box part 12 is symmetrically arranged at the left and right ends of the lock plate body 1, and both are provided with locking box fastening holes 121. The locking box fastening holes 121 include a first locking box fastening hole 1211 and a second locking box fastening hole 1212. The first locking box fastening hole 1211 is an oblong arc hole, and the second locking box fastening hole 1212 is an arc-shaped notch opened at the end of the locking box part 12. The hoisting installation part 13 is located above the wind wheel fastening part 11 and between the locking box parts 12 at both ends. The hoisting installation part 13 is provided with 1 to 2 hanging points.

[0071] The specific structure of the telescopic component 2 is as follows Figure 4 As shown, it includes an upper base 21, a lower base 22 and a telescopic rod 23, one end of the telescopic rod 23 is connected to the upper base 21, and the other end is connected to the lower base 22.

[0072] The specific structure of the connecting plate 3 is as follows: Figure 5 As shown, it includes an arc-shaped plate body and a telescopic component connection point 33 arranged on the outer side of the arc-shaped plate body. The arc-shaped plate body is provided with a locking pin hole 31 and two connecting plate fastening holes 32. The two connecting plate fastening holes 32 are both long arc-shaped holes.

[0073] The specific structure of the locking assembly 4 is as follows: Figure 6As shown, it includes an upper arc wedge block 41, a wedge-shaped pad 44, one or more flat pads 43 and a lower arc pad 42 arranged in sequence. Each module can be combined to form a cross-sectional structure that matches the long arc hole to achieve a tightening effect, and the corresponding central angle size can be adjusted by adjusting the number of flat pads 43.

[0074] In this embodiment, the upper base 21 is mounted on the locking box 12, and the lower base 22 is mounted on the connecting plate 3. The connecting plate 3 is partially inserted into the locking box 12 and connected to the locking box 12 through the telescopic assembly connection point 33 and the telescopic assembly 2. The first locking box fastening hole 1211 and the second locking box fastening hole 1212 are coaxially arranged with the connecting plate fastening hole 32. The first locking box fastening hole 1211 and the connecting plate fastening hole 32 have the same size, and the second locking box fastening hole 1212 and the end of the connecting plate fastening hole 32 have the same size. When the relative position between the connecting plate 3 and the locking box body 12 is adjusted by the telescopic component 2, the first locking box body fastening hole 1211 and its corresponding connecting plate fastening hole 32, and the second locking box body fastening hole 1212 and its corresponding connecting plate fastening hole 32 will form corresponding long arc holes, and the locking component 4 with the corresponding cross-sectional size will be inserted into the corresponding long arc hole to achieve fastening.

[0075] By using the wind rotor locking device of this embodiment, the wind rotor main shaft (through the connecting hole 111) and the wind rotor lock pin (through the lock pin hole 31) can be connected respectively. Through the fastening device, a reliable connection between the wind rotor main shaft and the wind rotor lock pins on both sides at any azimuth angle can be achieved to prevent the rotation of the wind rotor. It is particularly suitable for reliable locking of the wind rotor main shaft when the wind turbine gearbox is stuck.

[0076] Example 3

[0077] A wind wheel locking device comprises a locking plate body 1, a telescopic assembly 2, a connecting plate 3 and a locking assembly 4.

[0078] Specifically:

[0079] Locking plate body 1: comprising a part fastening to the wind wheel (wind wheel fastening part 11), a locking box part (locking box part 12) and a hoisting installation part (hoisting installation part 13); the lower edge is fastened with bolts on the wind wheel fastening part (wind wheel fastening part 11) and the back of the wind wheel low-speed main shaft flange; the locking box parts (locking box part 12) at both ends are fastened with the connecting plate 3 through the locking assembly 4 to transfer the wind wheel load.

[0080] Telescopic assembly 2: The lock plate body 1 and the connecting plate 3 are connected through the upper base 21, the lower base 22 and the telescopic rod 23, and are used to completely retract the connecting plate 3 into the locking box body 12 (disassembly and assembly) or fine-tune the position of the connecting plate 3 so that the wind wheel lock pin is inserted into the lock pin hole 31 of this plate.

[0081] Connecting plate 3: It comprises a locking pin hole 31 and a fastening waist hole (connecting plate fastening hole 32). It mainly runs in the locking box portion 12 of the locking plate body 1. The fastening waist hole is used to connect the locking assembly 4, and the locking assembly 4 carries the load transmitted from the locking plate body 1. The locking pin hole 31 is used to match the wind wheel lock pin of the wind turbine, and is used to transfer the load transmitted from the locking plate body 1 to the wind wheel lock pin.

[0082] Locking assembly 4: It is composed of an upper arc wedge block 41, a lower arc pad block 42, a flat pad block 43 and a wedge-shaped pad block 44. The arc pad blocks at both ends can ensure that the flat pad block 43 and the wedge-shaped pad block 44 are parallel to each other. According to the relative positions of the lock plate body 1 and the connecting plate 3, they are freely combined and pinned to fasten the lock plate body 1 and the connecting plate 3.

[0083] In this embodiment, the locking principle of the waist hole is:

[0084] A. Single pressure fastening: Figure 7 As shown, when subjected to a counterclockwise wind wheel load, the left wind wheel lock pin and the connecting plate 3 provide a clockwise supporting force to the first locking assembly 4 (first locking member 4 - 1 ), which reliably supports the counterclockwise wind wheel load pressure transmitted through the lock plate body 1 .

[0085] B. Tension tightening alone: Figure 8 As shown, when subjected to a clockwise wind wheel load, the left wind wheel lock pin and the connecting plate 3 provide supporting pulling force to the second locking assembly 4 (second locking member 4-2), which can reliably hold the clockwise wind wheel load pressure transmitted through the lock plate body 1.

[0086] In this embodiment, Fig. 9 As shown, the principle of fastening waist hole bidirectional double lock common load-bearing locking is:

[0087] A. When subjected to counterclockwise wind rotor load: the first locking member 4-1 transmits pressure through the left connecting plate 3 to the left wind rotor lock pin to bear the pressure; the third locking member 4-3 transmits tension to the right connecting plate 3 to the right wind rotor lock pin to bear the tension. The wind rotor lock pins on both sides are subjected to force at the same time.

[0088] B. When subjected to clockwise wind rotor load: the fourth locking member 4-4 transmits pressure through the right connecting plate 3 to the right wind rotor lock pin to bear the pressure; the second locking member 4-2 transmits tension to the left connecting plate 3 to the left wind rotor lock pin to bear the tension. The wind rotor lock pins on both sides are subjected to force at the same time.

[0089] The wind wheel locking device of this embodiment has the following advantages:

[0090] (1) The wind wheel can be installed at any angle:

[0091] A. Completely retract the two side connecting plates 3 into the locking plate body 1 through the two side telescopic components 2;

[0092] B. Hoist the lock plate body 1. Hoist the lock plate body 1 to the end of the wind wheel-main shaft fastening bolt e of the main shaft flange d, and tighten it;

[0093] C. Adjust the telescopic components 2 on both sides to extend the connecting plates 3 on both sides out of the box, align the lock pin hole 31 with the wind wheel lock pin c1, and then insert the wind wheel lock pin c1 (such as Fig.10 );

[0094] D. According to the size of the waist-shaped holes on both sides, different locking components 4 are combined to adapt (the position of the wind wheel-main shaft fastening bolt e can be adapted to any angle offset);

[0095] E. By adapting the locking assembly 4, the connection plate 3 (connected to the wind wheel lock pin c1) is fastened to the lock plate body 1, thereby achieving fastening of any wind wheel azimuth angle.

[0096] (2) The waist-shaped hole and the locking component 4 are reliably stressed:

[0097] A. The installation position of the locking component 4 adopts a waist-shaped hole design with arcs at both ends. It is a fastening structure composed of a slidable semicircular arc, a flat washer and a wedge-shaped washer. The upper and lower semicircular arc structures can rotate adaptively within the waist-shaped hole arc to ensure that the contact surfaces of the internal flat washer and wedge-shaped washer are closely combined and evenly stressed;

[0098] B. The plane of each pad of the locking assembly 4 is subjected to force over a large area as a whole, can bear strong loads, and the structure is safe and reliable;

[0099] C. The wedge-shaped pad will self-lock after being subjected to force to prevent loosening.

[0100] (3) The dual wind wheel lock pins can be linked to carry loads simultaneously, and the dual locks directly bear all the loads of the wind wheel, which is more reliable (such as Fig.11 ):

[0101] A. When subjected to a counterclockwise wind rotor load, the first locking member 4-1 and the third locking member 4-3 generate a supporting force on the lock plate body 1 (the left and right wind rotor lock pins c1 act simultaneously), preventing the wind rotor from rotating counterclockwise;

[0102] B. When subjected to a clockwise wind wheel load, the second locking member 4-2 and the fourth locking member 4-4 generate a supporting force on the lock plate body 1 (the left and right wind wheel lock pins c1 act simultaneously), preventing the wind wheel from rotating clockwise.

[0103] (4) Modular components, easy to disassemble and assemble, and reusable:

[0104] The device of this embodiment is composed of a locking plate body 1, a telescopic assembly 2, a connecting plate 3 and a locking assembly 4, and is easy to assemble and disassemble and can be reused.

[0105] The overall working principle of the wind wheel locking device of this embodiment is as follows: Fig.12 , 13 As shown:

[0106] When the wind rotor is loaded counterclockwise, the first locking member 4-1 and the third locking member 4-3 are forced to transfer the load to the wind rotor lock pin, thereby locking the wind rotor to rotate counterclockwise. When the wind rotor is loaded clockwise, the second locking member 4-2 and the fourth locking member 4-4 are forced to transfer the load to the wind rotor lock pin, thereby locking the wind rotor to rotate clockwise.

[0107] Example 4

[0108] A wind wheel locking device, such as Fig.14 As shown, the locking assembly 4 includes an upper arc wedge block 41 , a lower arc pad block 42 , a flat pad block 43 , a wedge-shaped pad block 44 , a mounting arm 45 , a screw tensioner 46 , a fastening head 47 and a universal joint 48 .

[0109] Specifically, the upper arc wedge block 41, the wedge-shaped pad block 44, the plurality of flat pad blocks 43, and the lower arc pad block 42 are arranged in sequence, and one side of the wedge-shaped pad block 44 contacts the upper arc wedge block 41, and the other side contacts the flat pad block 43. The mounting arm 45 is arranged on the upper arc wedge block 41, and is threadedly connected with the screw rod tensioner 46. One end of the screw rod tensioner 46 is connected with the wedge-shaped pad block 44 through a universal joint 48, and the other end is provided with a fastening head 47. The rest is the same as that of the third embodiment.

[0110] The above description of the embodiments is to facilitate the understanding and use of the utility model by those skilled in the art. It is obvious that those familiar with the art can easily make various modifications to these embodiments and apply the general principles described herein to other embodiments without creative work. Therefore, the utility model is not limited to the above embodiments, and improvements and modifications made by those skilled in the art based on the disclosure of the utility model without departing from the scope of the utility model should be within the scope of protection of the utility model.

Claims

1. A wind wheel locking device, characterized in that: It comprises a locking plate body (1), a telescopic assembly (2), a connecting plate (3) and a locking assembly (4); The locking plate body (1) comprises a wind wheel fastening portion (11) and a locking box portion (12); the wind wheel fastening portion (11) is provided with a connecting hole (111), and the locking box portion (12) is provided with a locking box fastening hole (121) for installing a locking assembly (4); The connecting plate (3) is partially inserted into the locking box body (12) and connected to the locking box body (12) via the telescopic assembly (2); the connecting plate (3) is provided with a locking pin hole (31) matching the wind wheel lock pin and a connecting plate fastening hole (32) for installing the locking assembly (4); The locking assembly (4) is inserted into the locking box fastening hole (121) and the connecting plate fastening hole (32).

2. The wind wheel locking device according to claim 1, characterized in that: The locking box body (12) is symmetrically provided at both ends of the locking plate body (1), and the locking box body (12) is provided with a first locking box body fastening hole (1211) and a second locking box body fastening hole (1212), the first locking box body fastening hole (1211) is an oblong arc hole, and the second locking box body fastening hole (1212) is an arc-shaped notch opened at the end of the locking box body (12); The locking box parts (12) at both ends are connected to the connecting plates (3) through the telescopic components (2), and the connecting plates (3) at both ends are provided with two connecting plate fastening holes (32) corresponding to the first locking box fastening hole (1211) and the second locking box fastening hole (1212), respectively, and the connecting plate fastening holes (32) are all long arc-shaped holes; The first locking box fastening hole (1211), the second locking box fastening hole (1212) and the connecting plate fastening hole (32) are coaxially arranged.

3. The wind wheel locking device according to claim 2, characterized in that: The first locking box fastening hole (1211), the second locking box fastening hole (1212) and the connecting plate fastening hole (32) have the same width, the central angle corresponding to the first locking box fastening hole (1211) is equal to the connecting plate fastening hole (32), the second locking box fastening hole (1212) and the connecting plate fastening hole (32) have matching shapes at the end, and the locking assembly (4) can be inserted into the first locking box fastening hole (1211) and the connecting plate fastening hole (32) or inserted into the second locking box fastening hole (1212) and the connecting plate fastening hole (32).

4. The wind wheel locking device according to claim 3, characterized in that: The wind wheel fastening portion (11) is provided with a plurality of connection holes (111) corresponding to the bolt holes of the wind wheel low-speed main shaft flange. The wind wheel fastening portion (11) is connected and fastened to the wind wheel low-speed main shaft flange via the connection holes (111). The corresponding central angles of the two ends of the first locking box fastening hole (1211) and the connecting plate fastening hole (32) are not lower than the corresponding central angles of the two ends of the adjacent bolt holes of the wind wheel low-speed main shaft flange.

5. The wind wheel locking device according to claim 3, characterized in that: The locking assembly (4) comprises an upper arc wedge block (41), a lower arc pad block (42), a flat pad block (43) and a wedge-shaped pad block (44); The upper arc wedge block (41), the lower arc pad block (42), the flat pad block (43) and the wedge-shaped pad block (44) can form a cross-sectional structure matching the long arc hole, and the surface of the wedge-shaped pad block (44) protrudes from the surfaces of the upper arc wedge block (41), the lower arc pad block (42) and the flat pad block (43).

6. The wind wheel locking device according to claim 5, characterized in that: The upper arc wedge block (41), the wedge-shaped pad block (44), a plurality of flat pad blocks (43), and the lower arc pad block (42) are arranged in sequence. One side of the wedge-shaped pad block (44) contacts the upper arc wedge block (41), and the other side contacts the flat pad block (43). Both ends of the wedge-shaped pad block (44) can extend out of the locking box fastening hole (121) and the connecting plate fastening hole (32).

7. The wind wheel locking device according to claim 5, characterized in that: The locking assembly (4) further comprises a mounting arm (45), a screw rod tensioner (46), a fastening head (47) and a universal joint (48); The mounting arm (45) is arranged on the upper arc wedge block (41) and is threadedly connected to the screw rod tensioner (46). One end of the screw rod tensioner (46) is connected to the wedge-shaped pad (44) through a universal joint (48), and the other end is provided with a fastening head (47).

8. The wind wheel locking device according to claim 1, characterized in that: The telescopic assembly (2) comprises an upper base (21), a lower base (22) and a telescopic rod (23); The upper base (21) is arranged on the locking box body (12), the lower base (22) is arranged on the connecting plate (3), one end of the telescopic rod (23) is connected to the upper base (21), and the other end is connected to the lower base (22).

9. The wind wheel locking device according to claim 1, characterized in that: The locking plate body (1) further comprises a hoisting installation portion (13), the hoisting installation portion (13) being located above the wind wheel fastening portion (11) and between the locking box portions (12) at both ends, and the hoisting installation portion (13) being provided with 1 to 2 hanging points.

10. A wind turbine generator set, characterized in that: The wind turbine generator set comprises the wind wheel locking device according to any one of claims 1 to 9.

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