Slip ring connection assembly, slip ring assembly and wind turbine generator system

Abstract

The present disclosure provides a slip ring connection assembly, a slip ring assembly and a wind turbine generator set, the slip ring connection assembly comprising a horizontal connecting frame, a vertical connecting frame and a buffer part, the first end of the horizontal connecting frame being used for connecting with a rotor part of a slip ring; the first end of the vertical connecting frame being used for connecting with a rotating part of the wind turbine generator set, the second end of the vertical connecting frame being movably connected with the second end of the horizontal connecting frame; the buffer part being arranged on at least one of the second end of the horizontal connecting frame and the second end of the vertical connecting frame, and used for absorbing impact force when the vertical connecting frame and the horizontal connecting frame move relative to each other, thereby improving the use reliability and service life of the slip ring connection assembly.

Description

Technical Field

[0001] This disclosure pertains to the field of wind power generation technology, and particularly relates to a slip ring connection assembly, a slip ring assembly, and a wind turbine generator set. Background Technology

[0002] To ensure the continuous and stable operation of wind turbine generators, a cooling system is typically included. The cooling system's piping usually extends from the tower's interior to the nacelle to remove and dissipate the heat generated during operation. Simultaneously, to store or transmit the generated electricity, numerous cables are installed within the tower, extending from the nacelle to the tower's interior. When the nacelle rotates and yaws relative to the tower, the cooling system piping or cables located at the junction of the tower and nacelle are prone to tangling and breakage, severely affecting the normal operation of the wind turbine generator. To overcome these defects, slip rings are typically installed between the nacelle and the tower. Improving the reliability of slip rings is a crucial technical problem that urgently needs to be solved in this field. Utility Model Content

[0003] The main objective of this disclosure is to provide a slip ring connection assembly, a slip ring assembly, and a wind turbine generator set to improve the reliability of wind turbine generator sets.

[0004] To achieve the above objectives, this disclosure provides the following technical solution:

[0005] One aspect of this disclosure provides a slip ring connection assembly, the slip ring connection assembly including a horizontal connecting frame, a vertical connecting frame, and a buffer portion. A first end of the horizontal connecting frame is used to connect to a rotor component of the slip ring; a first end of the vertical connecting frame is used to connect to a rotating part of a wind turbine generator set; a second end of the vertical connecting frame is movably connected to a second end of the horizontal connecting frame; the buffer portion is disposed on at least one of the second ends of the horizontal connecting frame and the second end of the vertical connecting frame, and is used to absorb the impact force when the vertical connecting frame and the horizontal connecting frame move relative to each other.

[0006] According to an exemplary embodiment of the present disclosure, one of the second end of the horizontal connecting frame and the second end of the vertical connecting frame is provided with a socket, and the other extends movably into the socket as an insertion end. The buffer portion is provided on the wall of the socket and / or on the outer periphery of the insertion end.

[0007] According to an exemplary embodiment of the present disclosure, when the insertion hole is disposed at the second end of the transverse connecting frame, the insertion hole is an oblong hole extending along the extending direction of the transverse connecting frame; or, when the insertion hole is disposed at the lower end of the vertical connecting frame, the insertion hole is an oblong hole extending along the extending direction of the vertical connecting frame.

[0008] According to another exemplary embodiment of this disclosure, the buffer portion includes a cylindrical sidewall that wraps around the outer periphery of the extended end.

[0009] According to another exemplary embodiment of this disclosure, the buffer portion further includes a cylindrical bottom wall, which is detachably connected to the end of the extended end for limiting the cylindrical side wall on the extended end; and / or, the outer contour of the cross-section of the cylindrical side wall is circular, elliptical, or rectangular.

[0010] According to another exemplary embodiment of this disclosure, the cylindrical sidewall of the buffer portion is made of soft metal, rubber, or nylon.

[0011] According to another exemplary embodiment of this disclosure, the edge of the socket is provided with reinforcing ribs, which extend protrudingly from both ends of the socket and extend continuously in the circumferential direction of the socket.

[0012] According to another exemplary embodiment of this disclosure, the horizontal connecting frame is provided as at least two, arranged symmetrically around the slip ring in the circumferential direction, and the number of the vertical connecting frames is the same as the number of the horizontal connecting frames and their positions correspond.

[0013] According to another aspect of this disclosure, a slip ring assembly is provided, the slip ring assembly including a slip ring and a slip ring connecting assembly as described above, the slip ring including a stator component and a rotor component that are nested together and rotate relative to each other, the transverse connecting frame being connected to the rotor component, and the stator component being used to connect to the stationary portion of the wind turbine generator set.

[0014] According to another exemplary embodiment of this disclosure, the slip ring is a fluid slip ring or a conductive slip ring.

[0015] According to another aspect of this disclosure, a wind turbine generator set is provided, the wind turbine generator set including a tower and a nacelle mounted on top of the tower, the wind turbine generator set further including a slip ring assembly as described above, the stator component being fixedly mounted on the tower, the vertical connecting frame being arranged in a vertical direction, the horizontal connecting frame being arranged in a horizontal direction and extending radially along the slip ring, the first end of the vertical connecting frame being fixedly connected to the bottom of the nacelle, such that the bottom of the nacelle drives the vertical connecting frame to rotate around the slip ring.

[0016] The slip ring connection assembly, slip ring assembly, and wind turbine generator set provided in this disclosure have at least the following beneficial effects: By providing a buffer portion on at least one of the second end of the horizontal connection frame and the second end of the vertical connection frame, this disclosure absorbs the impact force when the vertical connection frame and the horizontal connection frame move relative to each other, thereby improving the reliability of the slip ring connection assembly and also increasing its service life. Attached Figure Description

[0017] The above and / or other objects and advantages of this disclosure will become clearer from the following description of embodiments taken in conjunction with the accompanying drawings, in which:

[0018] Figure 1 A partial structural diagram of a wind turbine generator set provided for an exemplary embodiment of this disclosure.

[0019] Figure 2 for Figure 1 A magnified view of a portion of the slip ring connection assembly.

[0020] Figure 3 for Figure 2 Another perspective of the enlarged partial structure of the slip ring connection component.

[0021] Figure 4 for Figure 2 A longitudinal sectional view of a partial structure of the slip ring connection assembly.

[0022] Explanation of reference numerals in the attached figures:

[0023] 100. Slip ring connection assembly; 110. Lateral connection frame;

[0024] 111. Insertion hole; 112. Reinforcing rib;

[0025] 120. Vertical connecting frame; 121. Connecting frame body;

[0026] 122. Connecting section; 130. Buffer section;

[0027] 200. Slip ring; 201. Slip ring frame;

[0028] 300, bottom; 400, platform inside the tower. Detailed Implementation

[0029] Example embodiments will now be described more fully with reference to the accompanying drawings. However, it should not be construed that the embodiments of this disclosure are limited to those described herein. The same reference numerals in the drawings denote the same or similar structures, and therefore their detailed descriptions will be omitted.

[0030] This disclosure provides a wind turbine generator set, which includes a stationary part and a rotating part. The relative motion between these two parts can be defined within a certain time period. The referenced part can be defined as the stationary part, and the part capable of rotating relative to the stationary part is called the rotating part. It should be noted that the stationary part defined in this embodiment can be an absolutely stationary part, such as a tower stationary relative to the ground, and the nacelle can be defined as the rotating part. Alternatively, the nacelle can be defined as the stationary part relative to the main shaft of the wind turbine generator set, while the main shaft of the wind turbine generator set can be defined as the rotating part, where the bottom of the nacelle can be the relatively stationary part.

[0031] In wind turbine generator sets, cables are usually required at the connection between the stationary and rotating parts. In this embodiment, the cables may include cables for transmitting current or electrical signals, or pipes for fluid passage, but are not limited thereto.

[0032] To prevent the cable from tangling during the rotation of the rotating part relative to the stationary part, this embodiment provides a slip ring 200 at the junction of the rotating and stationary parts. In this embodiment, the slip ring 200 may include a fluid slip ring primarily responsible for transmitting hydraulic / pneumatic media, or a conductive slip ring primarily responsible for transmitting electrical / electrical signals.

[0033] In another aspect of this disclosure, a slip ring assembly is provided, including a slip ring 200 and a slip ring connection assembly 100 disposed between the slip ring 200 and a rotating part of a wind turbine generator set, wherein the slip ring 200 can be connected to the rotating part of the wind turbine generator set via the slip ring connection assembly 100.

[0034] As an example, this embodiment uses the nacelle as the rotating part of the wind turbine generator set, the tower as the stationary part, and the slip ring 200 set at the junction of the nacelle and the tower as a fluid slip ring for illustration.

[0035] Specifically, a wind turbine includes a tower (not shown) and a nacelle (not shown) connected to the tower. The nacelle can rotate at a predetermined angle relative to the tower, which enables the wind turbine to adjust to the wind, thereby improving the wind energy capture efficiency and thus improving the power generation efficiency of the wind turbine.

[0036] During the yaw rotation of the nacelle, the cables located at the connection between the nacelle and the tower may become tangled. To prevent cable tangling, a slip ring 200 can be installed at the junction of the bottom of the nacelle and the top of the tower, allowing the nacelle to yaw relative to the tower.

[0037] In this embodiment, the slip ring 200 may include a stator component and a rotor component that are nested together and can rotate relative to each other. The stator component may be connected to the tower, for example, but not limited to, it may be fixedly connected to the platform 400 inside the tower. The rotor component may be connected to the bottom 300 of the nacelle. Since the rotor component can rotate relative to the stator component, the nacelle can yaw relative to the tower, thereby effectively preventing the cables at the junction of the nacelle and the tower from getting tangled due to the yaw rotation of the nacelle.

[0038] As an example, in this embodiment, the stator component can be sleeved on the outer periphery of the rotor component, so that the slip ring 200 is formed as an inner rotor and outer stator structure. However, this is not a limitation. As needed, the rotor component can also be sleeved on the outer periphery of the stator component, so that the slip ring 200 is formed as an outer rotor and inner stator structure.

[0039] According to an exemplary embodiment of the present disclosure, a slip ring connection assembly 100 is provided for connecting the rotor component of a slip ring 200 and the rotating part of a wind turbine generator set, so that the slip ring 200 is stably connected to the rotating part of the wind turbine generator set. For example, but not limited to, the slip ring connection assembly 100 can be used to connect between the rotor component of the slip ring 200 and the bottom 300 of the nacelle, so that the rotor component of the slip ring 200 can be reliably connected to the bottom 300 of the nacelle.

[0040] Reference Figure 1 In one exemplary embodiment of this disclosure, at least two horizontal connecting frames 110 are provided for circumferential symmetrical arrangement around the slip ring 200, and the number of vertical connecting frames 120 is the same as the number of horizontal connecting frames 110 and their positions correspond.

[0041] As an example, the transverse connecting frame 110 is set to two, so that there can be two slip ring connecting assemblies 100. The two slip ring connecting assemblies 100 make the connection between the slip ring 200 and the bottom of the nacelle 300 more stable. When one slip ring connecting assembly 100 fails (e.g., breaks), the other slip ring connecting assembly 100 can still continue to work, ensuring the operational reliability of the wind turbine generator.

[0042] As an example, two slip ring connecting assemblies 100 are arranged at circumferential intervals along the slip ring 200. For example, but not limited to, the two slip ring connecting assemblies 100 are respectively connected to opposite sides of the slip ring 200, applying rotational driving force to the rotor component of the slip ring 200 in a basically symmetrical manner, so that the force on the rotor component is more symmetrical and balanced, and the rotational motion is more stable.

[0043] An exemplary embodiment of this disclosure indicates that each slip ring connection assembly 100 may include a horizontal connecting frame 110, a vertical connecting frame 120, and a buffer portion 130. The horizontal connecting frame 110 is arranged generally horizontally, and its first end is used to connect with the rotor component of the slip ring 200. The vertical connecting frame 120 is arranged generally vertically, and its first end (i.e., the upper end) is used to connect with the bottom 300 of the nacelle. The second end of the horizontal connecting frame 110 and the second end (i.e., the lower end) of the vertical connecting frame 120 are movably connected. The buffer portion 130 is disposed on at least one of the second end of the horizontal connecting frame 110 and the lower end of the vertical connecting frame 120 to absorb the impact force when the vertical connecting frame 120 and the horizontal connecting frame 110 move relative to each other. This improves the reliability of the slip ring connection assembly 100 and also increases its service life.

[0044] In this embodiment, the movable connection between the second end of the horizontal connecting frame 110 and the lower end of the vertical connecting frame 120 may include a movable connection formed by the two hinged to each other, or a movable connection formed by the two sliding to each other, or a movable connection formed by the two plugging into each other, but is not limited thereto.

[0045] Since the second end of the transverse connecting frame 110 and the lower end of the vertical connecting frame 120 are movably connected, during the yaw rotation of the cabin, the second end of the transverse connecting frame 110 and the lower end of the vertical connecting frame 120 will collide due to relative motion. By providing a buffer part 130 on at least one of the second end of the transverse connecting frame 110 and the lower end of the vertical connecting frame 120, the impact force when the vertical connecting frame 120 and the transverse connecting frame 110 collide with each other can be effectively absorbed during the rotation of the drive slip ring 200, thereby avoiding rigid collision between the vertical connecting frame 120 and the transverse connecting frame 110 and improving the service life of the slip ring connecting assembly 100.

[0046] This embodiment uses the example of a plug-in movable connection formed by the second end of the transverse connecting frame 110 and the lower end of the vertical connecting frame 120. To further improve the reliability of the slip ring connecting assembly 100, the transverse connecting frame 110 and the vertical connecting frame 120 can be made of metal to have a predetermined structural strength to meet the yaw requirements of the cabin, which will not be elaborated further here.

[0047] Specifically, refer to Figures 1 to 4One of the second end of the horizontal connecting frame 110 and the lower end of the vertical connecting frame 120 is provided with a socket 111, and the other is formed as an insertion end that can match the socket 111 and can be movably inserted into the socket 111. The buffer part 130 is provided on the hole wall of the socket 111 or on the outer periphery of the insertion end, so as to absorb the impact force during the collision of the insertion end relative to the socket 111, avoid damage caused by rigid collision between the horizontal connecting frame 110 and the vertical connecting frame 120, improve the reliability of the slip ring connection assembly, and at the same time, the buffer part 130 absorbs the noise generated during the collision, thus improving the smoothness and comfort of the equipment operation.

[0048] This embodiment uses the example of a transverse connecting frame 110 extending radially along the slip ring 200 for illustration. Specifically, the transverse connecting frame 110 is arranged approximately horizontally. In the radial direction of the slip ring 200, the second end of the transverse connecting frame 110 is located outside the first end, and the insertion hole 111 is provided at the second end of the transverse connecting frame 110, that is, the insertion hole 111 is provided at the outer end of the transverse connecting frame 110 along the radial direction of the slip ring 200.

[0049] As an example, the upper end of the vertical connecting frame 120 can be fixedly connected to the bottom 300 of the nacelle, and the lower end is formed as an extension end that extends movably into the insertion hole 111 to achieve a movable connection between the vertical connecting frame 120 and the horizontal connecting frame 110. As an example, the upper end of the vertical connecting frame 120 can be fixed to the bottom 300, so that the bottom 300 can rotate synchronously with the vertical connecting frame 120 around the central axis of the slip ring 200, thereby driving the rotor component of the slip ring 200 to rotate through the rotation of the nacelle.

[0050] In this embodiment, the insertion hole 111 can be an oblong hole extending along the extension direction of the transverse connecting frame 110. The lower end of the vertical connecting frame 120 extends into the insertion hole 111, and the lower end of the vertical connecting frame 120 and the hole wall of the insertion hole 111 can be spaced apart, so that the lower end of the vertical connecting frame 120 can have a predetermined movable space in the insertion hole 111, so that the lower end of the vertical connecting frame 120 and the second end of the transverse connecting frame 110 are movably connected.

[0051] Because the slip ring 200 is large and has many connecting parts and pipes, misalignment of the installation parts or misalignment with the rotation center of the rotating part of the wind turbine generator is prone to occur. Therefore, during the rotation of the slip ring 200, the slip ring connecting assembly 100 connecting the slip ring 200 and the rotating part of the wind turbine generator is prone to breakage. In one embodiment of this disclosure, the lower end of the vertical connecting frame 120 is movably connected to the horizontal connecting frame 110. This allows for the transmission of rotational driving force while preventing damage to the vertical connecting frame 120 and the horizontal connecting frame 110 due to local force imbalance, thereby improving the reliability of the slip ring connecting assembly 100.

[0052] In this embodiment, by allowing the lower end of the vertical connecting frame 120 to extend movably into the insertion hole 111 on the horizontal connecting frame 110, the lower end of the vertical connecting frame 120 has a certain amount of room to move within the insertion hole 111. This ensures that the rotational driving force can be transmitted while preventing damage to the slip ring connecting assembly 100 due to asynchronous rotation or misalignment of the vertical connecting frame 120 and the horizontal connecting frame 110.

[0053] Furthermore, by providing a buffer portion 130 at the lower end of the vertical connecting frame 120 to absorb the impact force when the vertical connecting frame 120 and the horizontal connecting frame 110 move relative to each other, the collision between the vertical connecting frame 120 and the horizontal connecting frame 110 is effectively avoided, thereby improving the service life of the slip ring connecting assembly 100.

[0054] Continue to refer to Figure 4 In this embodiment, the vertical connecting frame 120 may include a connecting frame body 121 and a connecting section 122 disposed below the connecting frame body 121, the connecting section 122 forming an extension end of the vertical connecting frame 120. Specifically, refer to... Figure 2 and Figure 3 The main body 121 of the connecting frame can be an I-beam, but is not limited thereto. The connecting section 122 can be a cylinder, the top of which can be fixed to the bottom of the main body 121, but is not limited thereto. As an example, the connecting section 122 and the main body 121 of the connecting frame can be connected by a flange, but is not limited thereto. In an optional embodiment, a frustum structure with a gradually increasing cross-sectional area is formed on the upper part of the connecting section 122. The frustum structure forms a transition structure for force transmission, avoiding stress concentration at the connection between the main body 121 of the connecting frame and the connecting section 122 due to the change in cross-section, thereby improving the service life of the vertical connecting frame 120.

[0055] The above embodiment is illustrated by taking the example of the socket 111 being located at the second end of the horizontal connecting frame 110 and the lower end of the vertical connecting frame 120 being movably inserted into the socket 111. However, this is not a limitation. As needed, the socket 111 can also be located at the lower end of the vertical connecting frame 120, and the socket 111 can be a vertically extending waist-shaped hole, with the second end of the horizontal connecting frame 110 being movably inserted into the socket 111. This is also within the protection scope of this disclosure.

[0056] Furthermore, the above embodiment is described with the buffer part 130 sleeved on the outer periphery of the second end of the transverse connecting frame 110 as an example, but it is not limited thereto. The buffer part 130 can also be fixed on the wall of the insertion hole 111.

[0057] In this embodiment, the buffer part 130 can be fixed to the second end of the transverse connecting frame 110 by adhesive or fastener connection. Other connection methods in the prior art can also be used for connection, all of which are within the protection scope of this disclosure and will not be described in detail here. The connection method between the buffer part 130 and the hole wall of the insertion hole 111 can refer to the connection method between the buffer part 130 and the transverse connecting frame 110, and will not be described in detail here.

[0058] Continue to refer to Figure 4 The buffer part 130 includes a cylindrical side wall 131, which is wrapped around the outer periphery of the insertion end to prevent the outer periphery of the insertion end from being worn or bumped against the insertion hole, thereby protecting the outer periphery of the insertion end.

[0059] As an example, the cylinder sidewall 131 can be connected to the outer peripheral surface of the inserted end by fasteners or by adhesive, but is not limited thereto.

[0060] In this embodiment, the buffer section 130 can be formed by the side wall 131 of the cylinder, or it can be formed by the side wall 131 of the cylinder and the bottom wall 132 of the cylinder to form a cylinder structure with an opening at one end, both of which are within the protection scope of this disclosure.

[0061] This embodiment is illustrated by taking the second end of the vertical connecting frame 120 as the insertion end and the buffer part 130 as a cylindrical structure with an opening at one end. The insertion end can be inserted into the buffer part 130 through the opening, so that the buffer part 130 is wrapped around the outer periphery of the insertion end. However, this is not a limitation.

[0062] Specifically, the buffer portion 130 may include a cylindrical sidewall 131 for wrapping around the extended end circumferentially, and a cylindrical bottom wall 132 for limiting the cylindrical sidewall 131 on the extended end. The cylindrical bottom wall 132 is detachably connected to the end of the extended end by fasteners 133, so that the buffer portion 130 can be reliably connected to the extended end. This configuration facilitates the disassembly and replacement of the buffer portion 130, allowing it to be replaced as needed based on wear.

[0063] In this embodiment, the bottom wall 132 of the cylinder is located below the bottom end of the side wall 131 of the cylinder, which can be used to vertically limit the side wall 131 of the cylinder, but is not limited thereto. In this embodiment, the bottom wall 132 and the side wall 131 of the cylinder are independently connected to the extension end, so that the bottom wall 132 can be reused when the side wall 131 of the cylinder is replaced. In addition, as needed, the bottom wall 132 of the cylinder can be fixedly connected to the bottom end of the side wall 131 of the cylinder to facilitate overall disassembly and improve the disassembly and assembly efficiency of the buffer part 130.

[0064] As needed, the buffer part 130 has a cylindrical inner cavity that matches the connecting section 122 of the vertical connecting frame 120. When the buffer part 130 is wrapped around the outer periphery of the connecting section 122, the outer periphery of the connecting section 122 can fit against the cavity wall of the buffer part 130, thereby improving the service life of the buffer part 130.

[0065] In this embodiment, the cylindrical sidewall 131 and the cylindrical bottom wall 132 can be formed independently of each other. The cylindrical sidewall 131 of the buffer part 130 is made of soft metal, rubber, or nylon. When the transverse connecting frame 110 and the vertical connecting frame 120 collide, the buffer part 130 can effectively absorb the impact force. The cylindrical bottom wall 132 can be made of a metal with good structural strength, for example, but not limited to, stainless steel. This is inexpensive and effectively reduces the manufacturing cost of the buffer part 130 while ensuring the connection strength between the buffer part 130 and the insertion end.

[0066] Soft metals refer to metals that are relatively easy to shape or cut. Generally, aluminum, copper, lead, tin, gold, etc. are classified as soft metals. Soft metals are materials that are well known to those skilled in the art, so they will not be described in detail here.

[0067] In this embodiment, the rubber component can be made of natural rubber or synthetic rubber. As long as it can be placed between the socket and the lower end to avoid rigid contact between the lower end and the socket, thereby avoiding wear on the lower end, it is within the protection scope of this disclosure.

[0068] Furthermore, the outer contour of the cross-section of the cylinder sidewall 131 can be circular, elliptical, or rectangular, all of which are within the scope of protection of this disclosure. This embodiment is illustrated by taking the outer contour of the cross-section of the buffer portion 130 as rectangular as an example, but it is not limited thereto.

[0069] To increase the contact area between the insertion end and the socket 111, a reinforcing rib 112 is provided on the edge of the socket 111. The reinforcing rib 112 extends outward from both sides of the socket 111 and extends continuously in the circumference of the socket 111. During the yaw rotation of the cabin, when the second end of the transverse connecting frame 110 and the lower end of the vertical connecting frame 120 collide due to relative movement, excessive local impact force is avoided, thereby further improving the service life of the slip ring connecting assembly.

[0070] Another aspect of this embodiment provides a slip ring assembly, which includes a slip ring 200 and a slip ring connecting assembly 100 as described above. The slip ring 200 includes a stator component and a rotor component that are nested together and rotate relative to each other. A transverse connecting frame 110 is connected to the rotor component, and the stator component is used to connect to the stationary part of the wind turbine generator set.

[0071] In another aspect, this disclosure provides a wind turbine generator set, which includes a tower and a nacelle mounted on top of the tower. The wind turbine generator set also includes a slip ring assembly as described above. The stator component is fixedly mounted on the tower, and the upper end of the vertical connecting frame 120 is fixedly connected to the bottom 300 of the nacelle, so that the bottom 300 of the nacelle drives the vertical connecting frame 120 to rotate around the slip ring 200.

[0072] return Figure 1 The tower has an internal platform 400 located in its inner cavity. The internal platform 400 is located at the top of the tower, for example, but not limited to, near the connection between the nacelle and the tower.

[0073] The wind turbine generator set may also include a slip ring frame 201 for supporting the slip ring 200. The slip ring frame 201 is fixed to the inner platform 400 of the tower, for example, but not limited to, by welding or fastener connection. In this embodiment, the slip ring frame 201 may be a truss structure formed by welding beams, but is not limited thereto.

[0074] In this embodiment, the stator component of the slip ring 200 can be fixed to the top of the slip ring frame 201, the rotor component is sleeved inside the stator component and can rotate relative to the stator component, the rotor component can be fixedly connected to the inner end of the transverse connecting frame 110 of the slip ring connecting assembly 100, the outer end of the transverse connecting frame 110 can form a plug-in movable connection with the lower end of the vertical connecting frame 120, and the upper end of the vertical connecting frame 120 is fixed to the bottom 300 of the machine compartment. In this way, the rotation of the machine compartment can drive the rotor component to rotate relative to the stator component, ensuring that the hydraulic power can be transmitted continuously, reliably and without entanglement.

[0075] In the description of this disclosure, it should be understood that the terms “center,” “upper,” “lower,” “front,” “rear,” “left,” “right,” “vertical,” “horizontal,” “top,” “bottom,” “inner,” and “outer,” etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this disclosure and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this disclosure.

[0076] The terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this disclosure, unless otherwise stated, "a plurality of" means two or more.

[0077] In the description of this disclosure, it should be noted that, unless otherwise expressly specified and limited, the terms "installation," "connection," "linking," and "fixing" 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 mechanical connection, an electrical connection, or a communication connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this disclosure according to the specific circumstances.

[0078] The features, structures, or characteristics described in this disclosure can be combined in any suitable manner in one or more embodiments. Numerous specific details are provided in the foregoing description to give a full understanding of embodiments of this disclosure. However, those skilled in the art will recognize that the technical solutions of this disclosure can be practiced without one or more of the specific details described, or other methods, components, materials, etc., can be employed. In other instances, well-known structures, materials, or operations are not shown or described in detail to avoid obscuring various aspects of this disclosure.

Claims

1. A slip ring connection assembly, characterized in that, The slip ring connection assembly includes: A transverse connecting frame (110), the first end of which is used to connect to the rotor component of the slip ring (200); A vertical connecting frame (120) has a first end for connecting to the rotating part of a wind turbine generator set, and a second end for being movably connected to the second end of a horizontal connecting frame (110). A buffer section (130) is disposed on at least one of the second end of the transverse connecting frame (110) and the second end of the vertical connecting frame (120) for absorbing the impact force when the vertical connecting frame (120) and the transverse connecting frame (110) move relative to each other.

2. The slip ring connection assembly according to claim 1, characterized in that, One of the second ends of the horizontal connecting frame (110) and the second end of the vertical connecting frame (120) is provided with a socket (111), and the other extends movably into the socket (111) as an insertion end. The buffer part (130) is provided on the hole wall of the socket (111) and / or on the outer periphery of the insertion end.

3. The slip ring connection assembly according to claim 2, characterized in that, When the insertion hole (111) is located at the second end of the transverse connecting bracket (110), the insertion hole (111) is an oblong hole extending along the extending direction of the transverse connecting bracket (110); or, When the insertion hole (111) is located at the lower end of the vertical connecting frame (120), the insertion hole (111) is an oblong hole extending along the extending direction of the vertical connecting frame (120).

4. The slip ring connection assembly according to claim 2, characterized in that, The buffer section (130) includes a cylindrical sidewall (131), which is wrapped around the outer periphery of the extended end.

5. The slip ring connection assembly according to claim 4, characterized in that, The buffer section (130) also includes a bottom wall (132) of the cylinder, which is detachably connected to the end of the extension end and is used to limit the side wall (131) of the cylinder to the extension end; The outer contour of the cross-section of the cylinder sidewall (131) is circular, elliptical or rectangular.

6. The slip ring connection assembly according to any one of claims 1-5, characterized in that, The sidewall of the buffer section (130) is made of soft metal, rubber or nylon.

7. The slip ring connection assembly according to claim 2, characterized in that, The edge of the socket (111) is provided with reinforcing ribs (112), which extend from both ends of the socket (111) and extend continuously in the circumferential direction of the socket (111).

8. The slip ring connection assembly according to any one of claims 1-5, characterized in that, The horizontal connecting frame (110) is configured as at least two, which are arranged symmetrically around the slip ring (200) in the circumference. The number of vertical connecting frames (120) is the same as the number of horizontal connecting frames (110) and their positions correspond.

9. A slip ring assembly, characterized in that, The slip ring assembly includes a slip ring (200) and a slip ring connection assembly (100) according to any one of claims 1-8. The slip ring (200) includes a stator component and a rotor component that are nested together and rotate relative to each other. The transverse connecting frame (110) is connected to the rotor component. The stator component is used to connect to the stationary part of the wind turbine generator set.

10. The slip ring assembly according to claim 9, characterized in that, The slip ring (200) is a fluid slip ring or a conductive slip ring.

11. A wind turbine generator set, characterized in that, The wind turbine generator set includes a tower and a nacelle mounted on top of the tower. The wind turbine generator set also includes a slip ring assembly according to claim 9 or 10. The stator component is fixedly mounted on the tower. The vertical connecting frame (120) is arranged vertically. The horizontal connecting frame (110) is arranged horizontally and extends radially along the slip ring (200). The first end of the vertical connecting frame (120) is fixedly connected to the bottom (300) of the nacelle, such that the bottom (300) of the nacelle drives the vertical connecting frame (120) to rotate around the slip ring (200).

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