Novel contact-replaceable slip ring device for wind generating set
By designing a new replaceable contact slip ring device for wind turbine sets, the problem of traditional slip ring contact failure due to long-term friction loss is solved, and the convenience and effectiveness of replacement contacts are achieved, which extends the service life of the equipment and reduces maintenance costs.
Patent Information
- Application Number
- CN202422135789.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-09-02
- Publication Date
- 2025-06-27
- Estimated Expiration
- 2034-09-02
AI Technical Summary
The contacts of the slip ring of the traditional wind turbine set fail due to long-term friction loss, resulting in high maintenance and replacement costs and losses to electricity.
A new type of slip ring device for replaceable contacts is designed, adopting a conductive shaft and brush needle structure, combining a quick connection and adjustment member, through the cooperation of the shrapnel and the limiting rod, the contacts can be replaced and adjusted, ensuring that the contacts are always fitted with the conductive shaft.
By replacing the contacts, the frictional loss problem caused by the slip ring due to long-term use is effectively improved, the service life of the equipment is extended, and the number of maintenance and cost are reduced.
Smart Images
Figure CN223039357U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the field of wind turbine generators, and more particularly to a slip ring device with a novel replaceable contact for a wind turbine generator. Background Art
[0002] A wind power slip ring is an electrical contact component used in wind turbine generators. It is mainly used to transmit electrical signals and electrical energy during the rotation of the unit. It is usually installed above the bearing of the wind turbine generator, responsible for receiving the power and signals generated during the rotation of the generator, and transmitting these electrical energies and signals to the outside of the unit.
[0003] However, in the traditional slip ring, the power and signals of the two rotating parts are connected through the contact friction inside the slip ring. During long-term use, the contact friction loss causes the slip ring to fail, and the maintenance and replacement costs of the slip ring are relatively high. At the same time, a large amount of power loss is caused during the long-term maintenance. How to invent a slip ring device with a novel replaceable contact for a wind turbine generator to improve these problems has become an urgent problem for those skilled in the art. Summary of the Utility Model
[0004] To make up for the above deficiencies, the utility model provides a slip ring device with a novel replaceable contact for a wind turbine generator, aiming to improve the problem that the slip ring contact is easily worn during long-term use, resulting in the failure of the slip ring.
[0005] The utility model is realized as follows: A slip ring device with a novel replaceable contact for a wind turbine generator, including a rotor assembly, the rotor assembly includes a conductive shaft and brush pins, and further includes:
[0006] A connection assembly, the connection assembly includes a quick connector and an adjusting member, the quick connector includes a connecting rod and a spring piece, the brush pin is rotationally connected to the connecting rod in a limited manner, the spring piece abuts against one end of the brush pin, the other end of the brush pin is in sliding contact with the conductive shaft, and the adjusting member includes a handle, and the handle is in limited transmission connection with the spring piece.
[0007] In a preferred technical solution of the utility model, the brush pin includes an upper connection part, a lower connection part and a contact head, the contact head is installed at the bottom of the lower connection part, and the upper connection part and the lower connection part are connected to the quick connector in a limited manner.
[0008] In a preferred technical solution of the present utility model, the quick connector further includes a connection frame and a lower pressing plate. The connecting rod is fixedly installed inside the connection frame. One end of the lower connecting portion is rotatably sleeved on the connecting rod. One end of the lower pressing plate is rotatably and limit-connected with an adjusting bolt below. The adjusting bolt threadedly penetrates through the bottom of the connection frame. One end of the upper connecting portion is located between the connection frame and the lower pressing plate. The elastic sheet is located below the end of the lower connecting portion.
[0009] In a preferred technical solution of the present utility model, the connection frame is U-shaped, and both ends of the connecting rod are fixedly connected to the inner wall of the connection frame.
[0010] In a preferred technical solution of the present utility model, equal-divided limit teeth are fixedly connected to the bottom of one end of the lower pressing plate close to the upper connecting portion.
[0011] In a preferred technical solution of the present utility model, the elastic sheet is arc-shaped. A limit rod is limit-connected to the bottom of the elastic sheet. Both ends of the limit rod are rotatably and limit-connected to the inner wall of the connection frame respectively.
[0012] In a preferred technical solution of the present utility model, a strip-shaped limit hole is provided in the middle of the limit rod. The elastic sheet is limit-engaged in the limit rod. The elastic sheet is respectively abutted against the end of the lower connecting portion at both ends of the limit rod.
[0013] In a preferred technical solution of the present utility model, the adjusting member further includes an adjusting rod and a limit sliding ring. One end of the adjusting rod is fixedly connected to the limit rod. The other end of the adjusting rod is fixedly connected to a limit cylinder. The limit sliding ring is limit-slidingly sleeved on the limit cylinder. The limit sliding ring is slidably and embeddedly connected to one side of the connection frame. The grip is fixedly connected to one side of the limit sliding ring.
[0014] In a preferred technical solution of the present utility model, a fixing plate is fixedly connected to one end of the limit cylinder away from the adjusting rod. A limit sliding rod is circumferentially connected to one side of the limit sliding ring close to the fixing plate. The limit sliding rod respectively penetrates through the fixing plate and is fixedly connected to the grip. A spring is provided between the fixing plate and the limit sliding rod.
[0015] In a preferred technical solution of the present utility model, both the limit cylinder and the limit sliding ring are regular polygons. The limit sliding ring is limit-slidingly connected to the outside of the limit cylinder. The limit sliding ring is limit-connected to the outer wall of the connection frame.
[0016] The beneficial effects of the present utility model are as follows: A slip ring device with a novel replaceable contact for a wind turbine generator set obtained through the above design. During use, the adjusting bolt is adjusted to drive the lower pressing plate to fixedly connect to the end of the upper connecting part. At the same time, one end of the lower connecting part drives the contact to fit with the conductive shaft through the abutment of the elastic sheet. When the contact rubs against the conductive shaft for a long time, its thickness will be reduced. The elastic extrusion of the elastic sheet facilitates the contact to always fit with the conductive shaft. By pulling the handle outwards, the limiting slip ring is disengaged from the limit of the adjusting rod to drive the limiting rod to rotate, which is convenient for adjusting the force of the elastic sheet abutting against the lower connecting part, preventing the abutting force from being too large or too small. During replacement, the adjusting bolt can be screwed to disassemble, and replacing with a new one can effectively improve the wear of the slip ring contact caused by long-term use, extend the service life of the equipment, and reduce the frequency and cost of maintenance. BRIEF DESCRIPTION OF THE DRAWINGS
[0017] In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the drawings required for use in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of the present utility model, and therefore should not be regarded as limiting the scope. For those of ordinary skill in the art, without creative efforts, other related drawings can also be obtained based on these drawings.
[0018] Figure 1 is a schematic structural diagram of one side provided by the embodiment of the present utility model;
[0019] Figure 2 is a schematic structural diagram of the other side provided by the embodiment of the present utility model;
[0020] Figure 3 is a schematic structural diagram of the connection assembly provided by the embodiment of the present utility model;
[0021] Figure 4 is a schematic cross-sectional structural diagram of the connection assembly provided by the embodiment of the present utility model;
[0022] Figure 5 is a schematic exploded structural diagram of the adjusting member provided by the embodiment of the present utility model.
[0023] In the figure: 100 - rotor assembly; 110 - conductive shaft; 120 - brush pin; 121 - upper connecting part; 122 - lower connecting part; 123 - contact; 200 - connection assembly; 210 - quick connector; 211 - connection frame; 212 - connecting rod; 213 - adjusting bolt; 214 - lower pressing plate; 215 - limiting tooth; 216 - limiting rod; 217 - elastic sheet; 220 - adjusting member; 221 - adjusting rod; 222 - limiting cylinder; 223 - fixing plate; 224 - limiting slip ring; 225 - limiting slide bar; 226 - handle. DETAILED DESCRIPTION OF THE EMBODIMENTS
[0024] To make the objectives, technical solutions, and advantages of the embodiments of the present utility model clearer, the technical solutions in the embodiments of the present utility model will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are some, but not all, of the embodiments of the present utility model. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without creative efforts fall within the scope of protection of the present utility model.
[0025] Please refer to Figure 1 and Figure 2 The present utility model provides a technical solution: a slip ring device for a novel replaceable contact of a wind turbine generator, including a rotor assembly 100. The rotor assembly 100 includes a conductive shaft 110 and brush pins 120, and further includes a connection assembly 200. The connection assembly 200 includes a quick connector 210 and an adjusting member 220. The quick connector 210 includes a connecting rod 212 and a spring piece 217. The brush pin 120 is connected to the connecting rod 212 in a limited rotation manner. The spring piece 217 abuts against one end of the brush pin 120, and the other end of the brush pin 120 is in sliding contact with the conductive shaft 110. The adjusting member 220 includes a grip 226, and the grip 226 is in a limited transmission connection with the spring piece 217. The quick connector 210 connects the brush pin 120 and abuts against the brush pin 120 so that the brush pin 120 is always in contact with the conductive shaft 110.
[0026] Please refer to Figure 3 The brush pin 120 includes an upper connection portion 121, a lower connection portion 122, and a contact 123. The contact 123 is installed at the bottom of the lower connection portion 122, and the upper connection portion 121 and the lower connection portion 122 are in a limited connection with the quick connector 210.
[0027] Please refer to Figure 3 and Figure 4, the quick connector 210 further includes a connecting frame 211 and a lower pressing plate 214. The connecting rod 212 is fixedly installed inside the connecting frame 211. One end of the lower connecting portion 122 is rotatably sleeved on the connecting rod 212. One end of the lower pressing plate 214 is rotatably and limit-connected with an adjusting bolt 213 below. The adjusting bolt 213 threadedly penetrates through the bottom of the connecting frame 211. One end of the upper connecting portion 121 is located between the connecting frame 211 and the lower pressing plate 214. The elastic piece 217 is located below the end of the lower connecting portion 122. The adjusting bolt 213 is rotatably and limit-connected with the lower pressing plate 214. Rotating the adjusting bolt 213 drives the lower pressing plate 214 to rise or fall to connect the upper connecting portion 121. The connecting frame 211 is U-shaped, and both ends of the connecting rod 212 are fixedly connected to the inner wall of the connecting frame 211. The bottom of one end of the lower pressing plate 214 close to the upper connecting portion 121 is equally divided and fixedly connected with limiting teeth 215. The elastic piece 217 is arc-shaped. The bottom of the elastic piece 217 is limit-connected with a limiting rod 216. Both ends of the limiting rod 216 are rotatably and limit-connected to the inner wall of the connecting frame 211. A strip-shaped limiting hole is opened in the middle of the limiting rod 216. The elastic piece 217 is limit-connected and clamped inside the limiting rod 216. The elastic piece 217 is respectively abutted against the end of the lower connecting portion 122 at both ends of the limiting rod 216.
[0028] Please refer to Figure 4 and Figure 5 , the adjusting member 220 further includes an adjusting rod 221 and a limiting sliding ring 224. One end of the adjusting rod 221 is fixedly connected to the limiting rod 216. The other end of the adjusting rod 221 is fixedly connected with a limiting cylinder 222. The limiting sliding ring 224 is limit-slidingly sleeved on the limiting cylinder 222. The limiting sliding ring 224 is slidably and embeddedly connected to one side of the connecting frame 211. The handle 226 is fixedly connected to one side of the limiting sliding ring 224. One end of the limiting cylinder 222 away from the adjusting rod 221 is fixedly connected with a fixing plate 223. A limiting sliding rod 225 is connected around one side of the limiting sliding ring 224 close to the fixing plate 223. The limiting sliding rod 225 respectively penetrates through the fixing plate 223 and is fixedly connected with the handle 226. A spring is arranged between the fixing plate 223 and the limiting sliding rod 225. Both the limiting cylinder 222 and the limiting sliding ring 224 are regular polygons. The limiting sliding ring 224 is limit-slidingly connected to the outside of the limiting cylinder 222. The limiting sliding ring 224 is limit-connected to the outer wall of the connecting frame 211. Pulling the handle 226 outwards, the handle 226 will drive the limiting sliding ring 224 to slide on the limiting cylinder 222, and at the same time release the limit with the connecting frame 211. At the same time, rotating the handle 226 and cooperating with the limiting sliding ring 224 drives the limiting cylinder 222 and the adjusting rod 221 to rotate. At the same time, the adjusting rod 221 will drive the limiting rod 216 to rotate. The limiting rod 216 drives the elastic piece 217 to abut against the lower connecting portion 122, which is convenient for adjusting the abutting force on the lower connecting portion 122. At the same time, after the adjustment is completed, the spring will squeeze the limiting sliding ring 224 to make the limiting sliding ring 224 continue to be limit-connected with the connecting frame 211, which is convenient for fixing the position of the elastic piece 217.
[0029] Working principle: By adjusting the adjusting bolt 213, the lower pressing plate 214 is driven to fixedly connect the end of the upper connecting portion 121. At the same time, one end of the lower connecting portion 122 drives the contact 123 to fit with the conductive shaft 110 through the abutment of the elastic piece 217. When the contact 123 rubs against the conductive shaft 110 for a long time, its thickness will be reduced. The elastic extrusion of the elastic piece 217 facilitates the contact 123 to always fit with the conductive shaft 110. By pulling the grip 226 outwards, the limiting slip ring 224 is disengaged from the limit of the adjusting rod 221 to drive the limiting rod 216 to rotate, which is convenient for adjusting the force of the elastic piece 217 against the lower connecting portion 122, preventing the abutting force from being too large or too small. When replacing, simply screw the adjusting bolt 213 to disassemble and replace it with a new one.
[0030] The above are only the preferred embodiments of the present invention and are not used to limit the present invention. For those skilled in the art, the present invention can have various changes and modifications. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall be included within the protection scope of the present invention.
Claims
1. A slip ring device for a new type of replaceable contactor of a wind turbine generator, comprising a rotor assembly, wherein the rotor assembly comprises a conductive shaft and a brush needle, characterized in that: Also includes A connecting assembly, the connecting assembly includes a quick connector and an adjusting member, the quick connector includes a connecting rod and a spring sheet, the brush needle is connected to the connecting rod for limited rotation, the spring sheet abuts against one end of the brush needle, and the other end of the brush needle is slidably abutted against the conductive shaft, and the adjusting member includes a handle, and the handle is connected to the spring sheet for limited transmission.
2. A slip ring device for a new type of replaceable contact for a wind turbine generator set as claimed in claim 1, characterized in that: The brush needle comprises an upper connecting part, a lower connecting part and a contact, wherein the contact is mounted on the bottom of the lower connecting part, and the upper connecting part and the lower connecting part are position-limitingly connected with the quick connecting piece.
3. A slip ring device for a new type of replaceable contact for a wind turbine generator set as claimed in claim 2, characterized in that: The quick connector also includes a connecting frame and a lower pressure plate, the connecting rod is fixedly installed inside the connecting frame, one end of the lower connecting part is rotatably sleeved on the connecting rod, an adjusting bolt is rotatably connected below one end of the lower pressure plate, and the adjusting bolt thread passes through the bottom of the connecting frame, one end of the upper connecting part is located between the connecting frame and the lower pressure plate, and the spring sheet is located below the end of the lower connecting part.
4. A slip ring device for a new type of replaceable contact for a wind turbine generator set as claimed in claim 3, characterized in that: The connection frame is U-shaped, and both ends of the connection rod are fixedly connected to the inner wall of the connection frame respectively.
5. A slip ring device for a new type of replaceable contact for a wind turbine generator set as claimed in claim 3, characterized in that: The bottom of one end of the lower pressing plate close to the upper connecting part is equally fixedly connected with the limiting teeth.
6. A slip ring device for a new type of replaceable contact for a wind turbine generator set as claimed in claim 4, characterized in that: The spring piece is arranged in an arc shape, the bottom of the spring piece is limitedly connected to a limit rod, and the two ends of the limit rod are respectively connected to the inner wall of the connection frame for limited rotation.
7. A slip ring device for a new type of replaceable contact for a wind turbine generator set as claimed in claim 6, characterized in that: A strip-shaped limiting hole is opened in the middle of the limiting rod, and the elastic piece is limitedly clamped in the limiting rod. The two ends of the elastic piece located on the limiting rod are respectively in contact with the end of the lower connecting part.
8. A slip ring device for a new type of replaceable contact for a wind turbine generator set as claimed in claim 6, characterized in that: The adjusting member also includes an adjusting rod and a limiting slip ring, one end of the adjusting rod is fixedly connected to the limiting rod, the other end of the adjusting rod is fixedly connected to the limiting cylinder, the limiting slip ring is limitedly slidably sleeved on the limiting cylinder, the limiting slip ring is slidably embedded in one side of the connecting frame, and the handle is fixedly connected to one side of the limiting slip ring.
9. A slip ring device for a new type of replaceable contact for a wind turbine generator set as claimed in claim 8, characterized in that: One end of the limit cylinder away from the adjusting rod is fixedly connected to a fixing plate, and the side of the limit sliding ring close to the fixing plate is surrounded by a limit sliding rod, and the limit sliding rod passes through the fixing plate and is fixedly connected to the handle, and a spring is arranged between the fixing plate and the limit sliding rod.
10. A slip ring device for a new type of replaceable contact for a wind turbine generator set as claimed in claim 8, characterized in that: The limiting cylinder and the limiting slip ring are both regular polygons. The limiting slip ring is connected to the outside of the limiting cylinder in a limiting sliding manner, and the limiting slip ring is connected to the outer wall of the connecting frame in a limiting manner.