Yaw braking device, yaw system and wind generating set

Abstract

The utility model relates to a yaw braking device, a yaw system and a wind generating set, the yaw braking device comprises a caliper body, an elastic friction assembly and an adjusting assembly, the caliper body is provided with a mounting through hole, and the elastic friction assembly is arranged in the mounting through hole and comprises a friction plate, a guide piece and an elastic piece; the guide part comprises an abutting part and a guide part which are connected, the abutting part abuts against the friction plate, the guide part is arranged in a protruding mode from the abutting part to the direction away from the friction plate, the guide part is sleeved with the elastic part, and at least part of the adjusting assembly is arranged in the mounting through hole; the adjusting assembly and the abutting part are oppositely arranged in the axial direction of the mounting through hole and clamp and fix the elastic piece, and the adjusting assembly has the moving freedom degree relative to the caliper body in the axial direction so as to abut against the elastic piece and enable the friction plate to make friction contact with the to-be-braked part. The yaw braking device is simple in structure, the weight of the yaw braking device can be reduced, and the manufacturing cost of the yaw braking device can be reduced.

Description

Technical Field

[0001] This application relates to the field of wind power technology, and in particular to a yaw braking device, a yaw system, and a wind turbine generator set. Background Technology

[0002] In the wind power industry, the rotor and nacelle receive wind direction information from the weathervane via a yaw system. An actuator drives the yaw bearing, causing the rotor and nacelle to actively yaw in response to changing wind direction, ensuring optimal wind energy absorption by the rotor. Due to the variable wind direction, wind turbines are designed with a yaw system to keep the rotor aligned with the constantly changing wind direction.

[0003] Yaw systems are classified into rolling yaw systems and sliding yaw systems based on their bearing structure. Sliding yaw systems provide sufficient damping during yaw through a yaw brake to ensure nacelle stability and wind alignment accuracy. Existing yaw brakes have relatively complex structures, resulting in greater weight and cost, thus reducing the unit's market competitiveness. Utility Model Content

[0004] This application provides a yaw braking device, a yaw system, and a wind turbine generator set, which can simplify the structure of the yaw braking device, reduce the weight and manufacturing cost of the yaw braking device, and improve the competitiveness of the generator set.

[0005] On one hand, according to an embodiment of this application, a yaw braking device is proposed, including a caliper body, an elastic friction assembly, and an adjustment assembly. The caliper body includes a first caliper body and a second caliper body stacked together. The first caliper body has a protrusion that protrudes from the second caliper body. A mounting through hole is provided on the protrusion. The elastic friction assembly is disposed in the mounting through hole. The elastic friction assembly includes a friction plate, a guide member, and an elastic member. The guide member includes a connecting abutment portion and a guide portion. The abutment portion abuts against the friction plate. The guide portion protrudes from the abutment portion in a direction away from the friction plate. The elastic member is sleeved on the outer periphery of the guide portion. The adjustment assembly is at least partially disposed in the mounting through hole. The adjustment assembly and the abutment portion are disposed opposite each other along the axial direction of the mounting through hole and clamp and fix the elastic member. The adjustment assembly has a degree of freedom of movement relative to the caliper body along the axial direction to press against the elastic member and make the friction plate rub against the component to be braked.

[0006] According to one aspect of the embodiments of this application, the contact portion and the guide portion are an integral structure.

[0007] According to one aspect of the embodiments of this application, in the axial direction, the adjustment component is recessed in a groove on the side surface facing the elastic friction component in a direction away from the guide portion, and the guide portion is inserted into the groove and spaced apart from the bottom of the groove in the axial direction.

[0008] According to one aspect of the embodiments of this application, the wall of the mounting through hole is provided with an internal thread structure, and the adjusting component is threadedly connected to the mounting through hole.

[0009] According to one aspect of the embodiments of this application, the adjusting assembly includes a threaded portion and an adjusting portion, the threaded portion being threadedly connected to a mounting through hole, and the adjusting portion extending at least partially out of the mounting through hole axially. The yaw braking device further includes a fastening assembly, which is connected to a first clamp and secures the adjusting portion.

[0010] According to one aspect of the embodiments of this application, the fastening assembly includes a baffle and a fastener, the baffle being connected to a first clamp body via the fastener. The baffle is provided with a limiting hole, which is adapted to an adjusting part, and the baffle secures the adjusting part through the limiting hole to limit the rotational freedom of the adjusting assembly relative to the mounting through hole.

[0011] According to one aspect of the embodiments of this application, the yaw braking device further includes a limiting structure, which protrudes from the wall of the mounting through hole and blocks the axial movement path of the adjusting component to limit the extreme movement position of the adjusting component on at least one side along the axial direction.

[0012] According to one aspect of the present application, the surface of the friction pad used for frictional contact with the component to be braked is provided with blind holes.

[0013] On the other hand, according to an embodiment of this application, a yaw system is proposed for a wind turbine generator set. The wind turbine generator set includes a tower and a nacelle. The yaw system includes a yaw gear ring and a yaw braking device as described in the above embodiment. The yaw gear ring is connected to the tower, and the yaw braking device is connected to the nacelle and makes frictional contact with the yaw gear ring through friction plates.

[0014] In another aspect, a wind turbine generator set is proposed according to an embodiment of this application, including a yaw system as described in the above embodiment.

[0015] The yaw braking device provided in this application embodiment reverses the guide member, causing the abutment portion of the guide member to act as a piston. The elastic member is directly clamped and fixed between the abutment portion of the guide member and the adjusting component. The adjusting component can directly press against the elastic member, and the elastic member acts on the abutment portion of the guide member, causing the friction plate to make frictional contact with the lower surface of the yaw gear ring. The yaw braking device of this application embodiment has a simple and reliable structure. While ensuring the load-bearing capacity of the yaw braking device, it can reduce the overall thickness of the first clamp body and the weight of the caliper body, thereby reducing costs. It can also reduce the number of structural accessories of the yaw braking device, reduce the assembly error rate, improve assembly efficiency, and enhance the competitiveness of the unit. Attached Figure Description

[0016] The features, advantages, and technical effects of exemplary embodiments of this application will now be described with reference to the accompanying drawings.

[0017] Figure 1 These are schematic diagrams of the structure of wind turbine generator sets provided in some embodiments of this application;

[0018] Figure 2 This is a partial cross-sectional view of the yaw system provided in some embodiments of this application;

[0019] Figure 3 This is a cross-sectional view of the yaw braking device in a wind turbine generator set, which is related to the technology.

[0020] Figure 4 This is a cross-sectional view of a yaw braking device provided in some embodiments of this application.

[0021] In the attached image:

[0022] 100 - Yaw system; 200 - Tower; 300 - Nacelle; 400 - Impeller;

[0023] 10 - Yaw brake; 20 - Yaw gear; 30 - Yaw drive;

[0024] 1'- Caliper body; 2'- Elastic friction assembly; 21'- Friction pad; 22'- Piston; 23'- Guide; 231'- Abutment part; 232'- Guide part; 24'- Elastic element; 3'- Adjustment assembly;

[0025] 1-Caliber body; 11-First clamp body; 12-Second clamp body; 2-Elastic friction assembly; 21-Friction pad; 22-Guide element; 221-Abutting part; 222-Guide part; 23-Elastic element; 3-Adjusting assembly; 31-Groove; 32-Threaded part; 33-Adjusting part; 4-Fastening assembly; 41-Baffle; 42-Fastener;

[0026] X - Second direction; Z - First direction.

[0027] In the accompanying drawings, the same parts use the same reference numerals. The drawings are not drawn to scale. Detailed Implementation

[0028] The features and exemplary embodiments of various aspects of this application will now be described in detail. Numerous specific details are set forth in the following detailed description to provide a comprehensive understanding of this application. However, it will be apparent to those skilled in the art that this application can be implemented without some of these specific details. The following description of embodiments is merely intended to provide a better understanding of this application by illustrating examples. In the accompanying drawings and the following description, at least some well-known structures and techniques are not shown to avoid unnecessarily obscuring the application; and, for clarity, the dimensions of some structures may be exaggerated. Furthermore, the features, structures, or characteristics described below can be combined in any suitable manner in one or more embodiments.

[0029] The directional terms used in the following description refer to the directions shown in the figures and are not intended to limit the yaw braking device, yaw system, or wind turbine generator set of this application. It should also be noted in the description of this application that, unless otherwise explicitly specified and limited, the terms "installation" and "connection" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a direct connection or an indirect connection. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.

[0030] To better understand this application, the yaw braking device, yaw system, and wind turbine generator set of the embodiments of this application will be described in detail below with reference to the accompanying drawings.

[0031] Please see Figure 1 and Figure 2 , Figure 1 A schematic diagram of the structure of a wind turbine generator set according to an embodiment of this application is shown. Figure 2 A partial cross-sectional view of a yaw system according to an embodiment of this application is shown.

[0032] This application provides a wind turbine generator set, including a tower 200, a nacelle 300, a rotor 400, and a yaw system 100 connected between the tower 200 and the nacelle 300. The yaw system 100 can drive the nacelle 300 to rotate relative to the tower 200, thereby adjusting the angle of the nacelle 300 relative to the tower 200 according to the wind direction, so as to ensure that the rotor 400 of the wind turbine generator set is always aligned with the wind direction, so as to make full use of wind energy and improve power generation efficiency.

[0033] As the power of wind turbine generators and the diameter of rotor 400 continue to increase, the center of gravity of the turbine nose also increases, and the load on its transmission chain and support structure also becomes larger and larger. Taking the yaw system 100 as an example, the bending moment load it bears also continues to increase. In order to cope with the increasing bending moment load, the yaw system 100 adopts a sliding yaw system 100.

[0034] The sliding yaw system 100 includes a yaw gear ring 20, a yaw drive 30, and a yaw braking device 10. The yaw gear ring 20 is connected to the tower 200, and the yaw drive 30 is connected to the nacelle 300. The yaw drive 30 may include a motor and a gear disposed at the output end of the motor. When the wind turbine needs to yaw to face the wind, the motor drives the gear to rotate. Since the yaw gear ring 20 is fixed, the gear rolls relative to the teeth of the yaw gear ring 20, thereby causing the nacelle 300 to rotate relative to the tower 200. The yaw braking device 10 includes a caliper body 1, which is connected to the nacelle 300 and makes frictional contact with the lower surface of the yaw gear ring 20. The yaw braking device 10 can bear the bending moment to prevent the nacelle 300 from overturning relative to the yaw gear ring 20 during yaw.

[0035] Please see Figure 3 , Figure 3 A cross-sectional view of a yaw braking device of the related art is shown. In the related art, the yaw braking device 10' includes a caliper body 1', an elastic friction assembly 2', and an adjusting assembly 3'. The caliper body 1' is connected to the nacelle 300. The elastic friction assembly 2' includes a friction plate 21', a piston 22', a guide 23', and an elastic element 24'. The guide 23' includes an abutment portion 231' and a guide portion 232'. The elastic element 24' is sleeved on the outer periphery of the guide portion 232' and clamped and fixed between the abutment portion 231' and the piston 22'. The adjusting assembly 3' presses against the abutment portion 231' of the guide 23'. The abutment portion 231' acts on the piston 22' through the elastic element 24', causing the friction plate 21' to make frictional contact with the lower surface of the yaw gear ring 20. The above-mentioned yaw braking device 10 has a complex structure, many assembly parts, complicated processes, and a large weight, which increases the manufacturing cost of wind turbine generators and reduces their market competitiveness.

[0036] To overcome the above-mentioned defects, this application also provides a novel yaw braking device 10. The yaw braking device 10 can be used in the yaw system 100 and wind turbine generator set in the above embodiments, and can be used as a component of the wind turbine generator set. Of course, it can also be produced or sold separately as an independent component.

[0037] Please refer to the following: Figure 2 and Figure 4 , Figure 4A cross-sectional view of the yaw braking device 10 according to an embodiment of this application is shown. This application provides a yaw braking device 10, including a caliper body 1, an elastic friction assembly 2, and an adjustment assembly 3. The caliper body 1 includes a first caliper body 11 and a second caliper body 12 stacked together. The first caliper body 11 has a protrusion protruding from the second caliper body 12, and a mounting through hole is provided on the protrusion. The elastic friction assembly 2 is disposed within the mounting through hole. The elastic friction assembly 2 includes a friction plate 21, a guide member 22, and an elastic member 23. The guide member 22 includes a connected abutment portion 221 and a guide... Part 222, abutting part 221 abuts against friction plate 21, guide part 222 protrudes from abutting part 221 in a direction away from friction plate 21, elastic member 23 is sleeved on the outer periphery of guide part 222, adjustment component 3 is at least partially disposed in mounting through hole, adjustment component 3 and abutting part 221 are disposed opposite to each other along the axial direction of mounting through hole and clamp and fix elastic member 23, adjustment component 3 has a degree of freedom of movement relative to caliper body 1 along the axial direction, so as to press elastic member 23 and make friction contact between friction plate 21 and component to be braked.

[0038] The yaw braking device 10 provided in this embodiment reverses the guide member 22, causing the abutment portion 221 of the guide member 22 to act as a piston. The elastic member 23 is directly clamped and fixed between the abutment portion 221 of the guide member 22 and the adjusting component 3. The adjusting component 3 can directly press against the elastic member 23, and through the elastic member 23 acting on the abutment portion 221 of the guide member 22, the friction plate 21 makes frictional contact with the lower surface of the yaw gear ring 20. Compared with the yaw braking device 10 in related technologies, the yaw braking device 10 of this embodiment can save the thickness of the piston while ensuring the load-bearing capacity, thereby reducing the overall thickness of the first clamp body 11, reducing the weight of the caliper body 1, achieving cost reduction, and also reducing the number of structural accessories of the yaw braking device 10, reducing the assembly error rate, improving assembly efficiency, and improving the competitiveness of the unit.

[0039] For the yaw braking device 10, the caliper body 1 serves as the main body of the yaw braking device 10. It includes a first caliper body 11 and a second caliper body 12 stacked along a first direction Z, where Z is a vertical direction. The first caliper body 11 is the lower part of the caliper body 1, and the second caliper body 12 is the upper part of the caliper body 1. The first caliper body 11 and the second caliper body 12 are respectively provided with mounting holes. The yaw braking device 10 may also include a connector, which passes through the connecting holes of the first caliper body 11 and the second caliper body 12 in sequence, and installs the caliper body 1 onto the nacelle 300 of the wind turbine generator set. The first caliper body 11 protrudes from the second caliper body 12 along a second direction X, where X can be a horizontal direction. The first caliper body 11 and the second caliper body 12 are generally L-shaped. The protruding part of the first caliper body 11 is supported on the lower surface of the yaw gear ring 20 to bear the bending moment load.

[0040] The protrusion has a through hole that runs through the first direction Z, that is, the axial direction of the through hole is parallel to the first direction Z. The elastic friction component 2 is disposed in the through hole. The elastic friction component 2 provides a preload through the adjusting component 3, so that the friction plate 21 makes frictional contact with the lower surface of the yaw gear ring 20.

[0041] The elastic friction assembly 2 includes a friction plate 21, a guide member 22, and an elastic member 23. The friction plate 21 can be a sliding pad to allow the yaw gear ring 20 to slide and rub against the yaw braking device 10, ensuring smooth yaw. Optionally, lubricating grease can be applied to the friction plate 21 to effectively reduce wear and decrease the replacement frequency of the friction plate 21.

[0042] In some alternative embodiments, the friction plate 21 has a recessed blind hole (not shown in the figure) on its surface for frictional contact with the component to be braked, so as to facilitate the disengagement of the friction plate 21 from the lower surface of the yaw gear ring 20 when replacing the friction plate 21. Furthermore, by providing a blind hole in the friction plate 21, compared to providing a through hole, the risk of lubricating grease applied to the friction plate 21 flowing out along the through hole to other locations can be reduced, thus improving the reliability of the yaw braking device 10.

[0043] Optionally, blind holes can be provided in the central region of the friction plate 21 to simplify the structure of the friction plate 21.

[0044] The guide member 22 includes a connecting abutment portion 221 and a guide portion 222. The guide portion 222 is disposed on the side of the abutment portion 221 opposite to the friction plate 21 and protrudes from the abutment portion 221 along the first direction Z. The guide portion 222 can be configured as a cylindrical structure, and the elastic member 23 can be configured as a disc spring assembly. The disc spring assembly includes multiple disc springs stacked along the first direction Z. The multiple disc springs are sleeved on the outer periphery of the guide portion 222 to achieve positioning of the disc spring assembly through the guide portion 222. The abutment portion 221 can act as a piston. When the elastic member 23 presses against the abutment portion 221, the abutment portion 221 can act on the friction plate 21 and make the friction plate 21 fit against the lower surface of the yaw gear ring 20.

[0045] In some alternative embodiments, the abutment portion 221 and the guide portion 222 are an integral structure, that is, the guide member 22 can be set as a T-shaped structure. By integrally setting the abutment portion 221 and the guide portion 222, the structure of the yaw braking device 10 can be simplified, the number of structural accessories of the yaw braking device 10 can be further reduced, and the positioning of the elastic member 23 can be facilitated, thereby reducing the assembly error rate and reducing assembly time.

[0046] The adjusting assembly 3 is movable relative to the caliper body 1 along the first direction Z. The adjusting assembly 3 is used to press against the elastic member 23 and compress the elastic member 23. The compressive force of the elastic member 23 acts on the abutment portion 221 of the guide member 22, and the friction plate 21 is in contact with the lower surface of the yaw gear ring 20 under the action of the abutment portion 221. Optionally, the adjusting assembly 3 can be configured as at least one of a hydraulic adjusting mechanism, a pneumatic adjusting mechanism, a worm gear adjusting mechanism, and a thread adjusting mechanism.

[0047] Please see Figure 2 and Figure 4 In some alternative embodiments, in the axial direction, the adjustment component 3 is recessed in a groove 31 on one side surface facing the elastic friction component 2 in a direction away from the guide portion 222, and the guide portion 222 is inserted into the groove 31 and spaced apart from the bottom of the groove 31 in the axial direction.

[0048] By recessing a groove 31 on the side surface of the adjusting component 3 facing the elastic friction component 2, the end of the guide part 222 can be inserted into the groove 31, thereby improving the guiding and centering effect of the elastic element 23 during the movement of the adjusting component 3 along the first direction Z.

[0049] Optionally, since the specific distance between the end of the guide portion 222 along the first direction Z and the bottom of the groove 31 can be used to limit the deformation of the elastic member 23, the specific distance between the end of the guide portion 222 along the first direction Z and the bottom of the groove 31 can be adjusted according to the elastic deformation of the elastic member 23, so that when the end of the guide portion 222 contacts the bottom of the groove 31, the elastic member 23 is still in an elastic deformation state.

[0050] Optionally, the adjusting assembly 3 includes a boss disposed around the groove 31, the projection of the boss in the first direction Z covering the elastic member 23. When a preload is applied to the adjusting assembly 3, the adjusting assembly 3 can press against the elastic member 23 through the boss, thereby improving the reliability of the pressing against the elastic member 23.

[0051] In some alternative embodiments, the wall of the mounting through hole is provided with an internal thread structure, and the adjusting component 3 is threadedly connected to the mounting through hole. That is, the adjusting component 3 can be configured as a threaded adjusting mechanism. The adjusting component 3 includes a support nut. By driving the support nut to rotate, the support nut can engage with the internal thread structure of the mounting through hole and move along the first direction Z to press against the elastic member 23.

[0052] By setting the adjustment component 3 as a threaded adjustment mechanism, high-precision position adjustment can be achieved. At the same time, the structure of the adjustment component 3 can be simplified. That is, the adjustment component 3 can be set as a support nut to press against the elastic element 23, thereby further reducing the weight of the yaw brake device 10, reducing the number of structural accessories of the yaw brake device 10, reducing the assembly error rate, and reducing assembly time.

[0053] Please see Figure 2 and Figure 4 In some alternative embodiments, the adjusting component 3 includes a threaded portion 32 and an adjusting portion 33. The threaded portion 32 is threadedly connected to the mounting through hole, and the adjusting portion 33 extends at least partially out of the mounting through hole along the axial direction. The yaw braking device 10 also includes a fastening component 4, which is connected to the first clamp 11 and locks the adjusting portion 33 to limit the rotational freedom of the adjusting component 3 and reduce the risk of the adjusting component 3 becoming loose.

[0054] In addition, by extending at least part of the adjustment part 33 out of the mounting through hole along the axial direction, and by limiting the adjustment part 3 outside the mounting through hole, it is easier to set the fastening part 4, and the thickness of the first clamp body 11 can be reduced, the weight of the caliper body 1 can be reduced, and the cost of the yaw brake device 10 can be reduced.

[0055] As an optional implementation, the fastening assembly 4 includes a baffle 41 and a fastener 42. The baffle 41 is connected to the first clamp body 11 through the fastener 42. The baffle 41 is provided with a limiting hole, which is adapted to the adjustment part 33. The baffle 41 secures the adjustment part 33 through the limiting hole to limit the rotational freedom of the adjustment assembly 3 relative to the mounting through hole.

[0056] Optionally, the cross-sectional shape of the adjusting part 33 along the first direction Z can be non-circular, and the limiting hole can be the same as the cross-sectional shape of the adjusting part 33 along the first direction Z. For example, when the end of the adjusting part 33 is set as a hexagonal head, the limiting hole can be set as an internal hexagonal hole. Therefore, after the adjusting component 3 moves relative to the clamp body 1 along the first direction Z to the preset position, the baffle 41 can be connected to the first clamp body 11 by the fastener 42, and the adjusting part 33 can be secured by the limiting hole of the baffle 41 to prevent the adjusting component 3 from loosening.

[0057] Alternatively, fastener 42 may be configured as a fastening screw.

[0058] In some alternative embodiments, the yaw braking device 10 further includes a limiting structure that protrudes from the wall of the mounting through hole and blocks the axial movement path of the adjusting component 3 to limit the extreme movement position of the adjusting component 3 on at least one side along the axial direction.

[0059] Optionally, the limiting structure is provided at least on the side of the mounting through hole away from the friction plate 21 along the first direction Z, so as to limit the extreme movement position of the adjusting component 3 away from the friction plate 21 along the first direction Z, reduce the risk of the adjusting component 3 being dislodged from the mounting through hole, and improve the reliability of the yaw braking device 10.

[0060] Optionally, the number of limiting structures is at least two, and the adjusting component 3 is disposed between the limiting structures along the first direction Z, so as to limit the extreme movement positions of the adjusting component 3 on both sides of the first direction Z by the limiting structures, thereby further improving the reliability of the movement of the adjusting component 3.

[0061] Optionally, the limiting structure can be configured as at least one of a stepped structure or a clamp.

[0062] Therefore, the yaw braking device 10 provided in this application embodiment includes a caliper body 1, an elastic friction assembly 2, and an adjustment assembly 3. The elastic friction assembly 2 only includes a friction plate 21, a guide member 22, and an elastic member 23. By reversing the guide member 22, the abutting part 221 of the guide member 22 can act as a piston, which can save the thickness of the piston member, thereby reducing the overall thickness of the first caliper body 11, reducing the weight of the caliper body 1, achieving cost reduction, and also reducing the number of structural accessories of the yaw braking device 10, reducing the assembly error rate, improving assembly efficiency, and improving the competitiveness of the unit.

[0063] The yaw system 100 and wind turbine generator set provided in this application embodiment have advantages such as light weight, low manufacturing cost, low assembly error rate, and high assembly efficiency, and are easy to promote and use because they include the yaw braking device 10 provided in the above embodiments.

[0064] Although this application has been described with reference to preferred embodiments, various modifications can be made thereto and components can be replaced with equivalents without departing from the scope of this application. In particular, the technical features mentioned in the various embodiments can be combined in any manner, provided there is no structural conflict. This application is not limited to the specific embodiments disclosed herein, but includes all technical solutions falling within the scope of the claims.

Claims

1. A yaw braking device, characterized in that, include: The caliper body (1) includes a first caliper body (11) and a second caliper body (12) stacked together. The first caliper body (11) has a protrusion that protrudes from the second caliper body (12), and the protrusion has a mounting through hole. An elastic friction assembly (2) is disposed in the mounting through hole. The elastic friction assembly (2) includes a friction plate (21), a guide (22), and an elastic element (23). The guide (22) includes a connecting abutment portion (221) and a guiding portion (222). The abutment portion (221) abuts against the friction plate (21). The guiding portion (222) protrudes from the abutment portion (221) in a direction away from the friction plate (21). The elastic element (23) is sleeved on the outer periphery of the guiding portion (222). An adjustment component (3) is at least partially disposed in the mounting through hole. The adjustment component (3) and the abutment part (221) are disposed opposite to each other along the axial direction of the mounting through hole and clamp and fix the elastic member (23). The adjustment component (3) has a degree of freedom of movement relative to the caliper body (1) along the axial direction to press against the elastic member (23) and make the friction plate (21) rub against the component to be braked.

2. The yaw braking device according to claim 1, characterized in that, The contact part (221) and the guide part (222) are an integral structure.

3. The yaw braking device according to claim 1, characterized in that, Along the axial direction, the adjustment component (3) has a recessed groove (31) on one side surface facing the elastic friction component (2) in a direction away from the guide part (222). The guide part (222) is inserted into the groove (31) and spaced apart from the bottom of the groove (31) along the axial direction.

4. The yaw braking device according to claim 1, characterized in that, The mounting through hole has an internal thread structure on its wall, and the adjusting component (3) is threadedly connected to the mounting through hole.

5. The yaw braking device according to claim 4, characterized in that, The adjustment assembly (3) includes a threaded portion (32) and an adjustment portion (33), wherein the threaded portion (32) is threadedly connected to the mounting through hole, and the adjustment portion (33) extends at least partially out of the mounting through hole along the axial direction; The yaw braking device (10) further includes a fastening assembly (4), which is connected to the first clamp (11) and secures the adjusting part (33).

6. The yaw braking device according to claim 5, characterized in that, The fastening assembly (4) includes a baffle (41) and a fastener (42), wherein the baffle (41) is connected to the first clamp body (11) via the fastener (42); The baffle (41) is provided with a limiting hole, which is adapted to the adjustment part (33). The baffle (41) secures the adjustment part (33) through the limiting hole to limit the rotational freedom of the adjustment component (3) relative to the mounting through hole.

7. The yaw braking device according to claim 1, characterized in that, The yaw braking device (10) further includes a limiting structure, which protrudes from the wall of the mounting through hole and blocks the movement path of the adjusting component (3) along the axial direction, so as to limit the extreme movement position of the adjusting component (3) along at least one side of the axial direction.

8. The yaw braking device according to claim 1, characterized in that, The friction plate (21) has a blind hole in the recessed surface for frictional contact with the component to be braked.

9. A yaw system for a wind turbine generator set, the wind turbine generator set including a tower (200) and a nacelle (300), characterized in that, The yaw system (100) includes: Yaw gear (20) is connected to the tower (200); The yaw braking device (10) as described in any one of claims 1 to 8 is connected to the cabin (300) and makes frictional contact with the yaw gear ring (20) via a friction plate (21).

10. A wind turbine generator set, characterized in that, Including the yaw system as described in claim 9.

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