A high stability wind turbine generator set slip ring device

Abstract

The present application relates to the technical field of wind power slip rings, and discloses a high-stability wind turbine slip ring device, which is used to solve the problem of aggravated wear or unstable connection caused by unstable direct pressure between the carbon brush and the conductive ring. The pressure control device automatically adjusts the extrusion force of the support spring and the carbon brush. When the carbon brush contacts the conductive ring, the extrusion force between the carbon brush and the conductive ring is always maintained within a fixed range, thereby avoiding the phenomenon of excessive wear of the carbon brush or unstable connection caused by fluctuations in the extrusion force between the carbon brush and the conductive ring; the wear degree of the carbon brush is judged by the position of the movement of the pressure control device. After the carbon brush is worn for a certain amount, the limit block of the pressure control device pushes the scraping device, so that the scraping plate of the scraping device scrapes the residual carbon powder on the conductive ring, to prevent excessive carbon powder from remaining on the conductive ring and affecting the contact between the carbon brush and the conductive ring.

Description

Technical Field

[0001] The present application relates to the technical field of wind power slip rings, and in particular to a high-stability wind power generator slip ring device. Background Art

[0002] A wind turbine is a system that converts the kinetic energy of wind into electrical energy. The structure of a wind turbine includes: a wind rotor, a transmission mechanism, a speed limiting or regulating mechanism, a braking mechanism, a generator, a wind power slip ring, a distribution box or controller, a battery, an inverter, etc. Among them, a wind power slip ring is a precise, complexly wired connection component used as an electrical contact of a wind turbine. It can achieve stable transmission of electricity and signals in a rotating state. The wind power slip ring is generally installed on the upper part of the wind turbine and connected to the wind rotor shaft.

[0003] Wind turbine slip rings are mainly composed of a rotor part (conductive ring, rotor module, etc.) and a stator part (brush, housing, etc.). The carbon brush of the brush is in sliding contact with the conductor ring. In order to make the carbon brush and the conductive ring contact well, a certain pressure must always be maintained on the carbon brush through the support spring. Due to the length of the newly installed carbon brush, the support spring is compressed to a greater extent, and the support spring exerts a greater extrusion force on the carbon brush. When the pressure between the carbon brush and the conductive ring is greater, the wear of the carbon brush will accelerate. After a certain amount of wear, the carbon brush will be less in length and the extrusion force of the support spring will be smaller, so that the contact between the carbon brush and the conductive ring is insufficient. When the rotor part rotates, the connection will be unstable, thus affecting the circuit connection of the entire wind turbine. Summary of the invention

[0004] The present application proposes a high-stability slip ring device for a wind turbine generator set, which has the advantage of automatically adjusting the contact force between the carbon brush and the conductive ring, and is used to solve the problem of increased wear or unstable connection caused by unstable direct pressure between the carbon brush and the conductive ring.

[0005] To achieve the above-mentioned purpose, the present application adopts the following technical solution: a high-stability wind turbine slip ring device, comprising a shell and an inner ring, a plurality of conductive rings are equidistantly installed on the inner ring, a plurality of brushes are fixedly installed in the shell and arranged equidistantly, the brushes are in sliding contact with the conductive rings, and the brushes comprise: a mounting shell, fixedly installed on the shell; a pressure control device, movably installed at the top of the mounting shell for automatically adjusting the pressure; a support spring, one end of which is fixedly connected to the bottom end of the pressure control device; a carbon brush, fixedly connected to the other end of the support spring, one end of which is slidably installed in the mounting shell, and the other end of which extends out of the mounting shell and is in sliding contact with the conductive rings.

[0006] Furthermore, a limit bar is fixedly installed on the bottom end of the inner wall of the mounting shell, and the limit bar is used to prevent the carbon brush from sliding out of the mounting shell.

[0007] Furthermore, the pressure control device includes: an extrusion spring, fixedly connected to the top end inside the mounting shell; a pressure control plate, fixedly connected to the other end of the extrusion spring and slidably installed in the mounting shell; and a limiting structure, installed on the pressure control plate and the carbon brush, for controlling whether the pressure control plate can slide in the mounting shell.

[0008] Furthermore, the limiting structure includes: a mounting groove, which is opened on the end face of the pressure control plate facing the inner wall of the mounting shell; a limiting block, which is slidably installed in the mounting groove, and the side wall near the middle position of the pressure control plate is connected with an elastic band, and the other end of the elastic band is connected to the inner wall of the mounting groove; a limiting column, which is fixedly connected to the end face of the carbon brush facing the pressure control plate; an elastic strip, which is embedded in one end of the limiting column facing the pressure control plate, and the elastic strip extends into the mounting groove; a plurality of limiting grooves are equidistantly opened on the inner wall of the mounting shell; and a scraping device for periodically cleaning the carbon powder on the conductive ring is installed on one side of the mounting shell.

[0009] Furthermore, the conductive ring is configured to be spiral, and the length of the conductive ring is equal to the width of the carbon brush.

[0010] Furthermore, a ball is movably embedded on the end surface of the limit block close to the carbon brush.

[0011] Furthermore, a scraping groove is provided on one side of the mounting shell, and the scraping groove is connected to the limiting groove, and the scraping device includes: a hinged shaft, fixedly mounted on the bottom end of the scraping groove; a scraping plate, movably sleeved on the hinged shaft, one end of the scraping plate is in the scraping groove and close to the inner wall of the scraping groove, and the other end of the scraping plate is close to the conductive ring; a torsion spring, movably sleeved on both ends of the hinged shaft, one end is fixedly connected to the scraping plate, and the other end is fixedly connected to the side wall of the scraping groove; a pushing bag, equidistantly mounted on one side of the scraping plate close to the inner wall of the scraping groove, and the pushing bag is filled with gas; a reinforcing device for increasing the mortgage force of the scraper plate is provided inside the mounting shell.

[0012] Furthermore, the reinforcing device includes: a pressure cylinder, fixedly installed at the top end inside the mounting shell; an extrusion column, one end of which is slidingly and sealingly installed in the pressure cylinder, and the other end extends out of the pressure cylinder and is fixedly connected to the pressure control plate; an extrusion bag, fixedly installed on the inner wall of the mounting groove near the center of the pressure control plate, and the extrusion bag and the pressure cylinder are connected through a connecting pipe; a pressure relief device for controlling the gas flow is installed at the connecting point between the connecting pipe and the extrusion bag.

[0013] Furthermore, the pressure relief device includes: an extrusion control valve fixedly connected to the connection point between the connecting pipe and the extrusion bag; a control rod, one end of which is fixedly connected to the extrusion control valve and the other end of which passes through the limit block.

[0014] Furthermore, a damping hole is provided on the extrusion bag, and the top end of the control rod is needle-shaped. When the top end of the control rod presses against the pushing bag, a hole is punctured in the pushing bag.

[0015] This application has the following beneficial effects:

[0016] 1. The present application provides a high-stability wind turbine slip ring device, which automatically adjusts the squeezing force on the support spring and the carbon brush through a pressure control device. When the carbon brush contacts the conductive ring, the squeezing force between the carbon brush and the conductive ring is always maintained within a fixed range, thereby avoiding the squeezing force fluctuation between the carbon brush and the conductive ring, which causes the carbon brush to wear too quickly or the connection to be unstable.

[0017] 2. The present application provides a high-stability slip ring device for a wind turbine generator set, which determines the degree of wear of the carbon brush by the moving position of the pressure control device. After the carbon brush is worn to a certain amount, the limit block of the pressure control device pushes the scraping device, so that the scraping plate of the scraping device scrapes off the carbon powder remaining on the conductive ring to prevent excessive carbon powder from remaining on the conductive ring and affecting the contact between the carbon brush and the conductive ring.

[0018] 3. The present application provides a high-stability slip ring device for a wind turbine generator set. When the pressure control device moves, the reinforcing device stores energy. When the limit block contacts the pushing bag, the gas stored in the reinforcing device enters the extrusion bag, so that the extrusion bag pushes the limit block, the pushing bag and the scraper plate, thereby strengthening the contact force between the scraper plate and the conductive ring, and strengthening the scraping effect of the scraper plate on the conductive ring.

[0019] 4. The present application provides a high-stability wind turbine slip ring device, which causes the pushing bag to leak slowly by contacting the pushing bag with the pushing bag residue hole when the limit block contacts the pushing bag, so that the scraping device is reset under the torsion of the torsion spring, thereby avoiding long-term contact between the scraping plate and the conductive ring, which leads to excessive wear of the scraping plate. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] The accompanying drawings, which constitute a part of the specification, illustrate embodiments disclosed in the present application and, together with the description, serve to explain the principles disclosed in the present application.

[0021] The present application can be more clearly understood from the following detailed description with reference to the accompanying drawings, in which:

[0022] Figure 1 It is a schematic diagram of the three-dimensional structure of the present invention;

[0023] Figure 2 It is a schematic diagram of the internal structure of the housing of the present invention;

[0024] Figure 3 It is a schematic diagram of the structure of the brush of the present invention;

[0025] Figure 4 A cross-sectional view of a brush mounting housing of the present invention;

[0026] Figure 5It is a schematic diagram of the internal structure of the brush mounting housing of the present invention;

[0027] Figure 6 For the present invention Figure 4 A magnified view of the local structure at center A;

[0028] Figure 7 For the present invention Figure 4 Top view of the .

[0029] In the figure: 1. shell; 11. mounting column; 2. inner ring; 21. conductive ring; 3. brush; 31. mounting shell; 32. pressure control device; 321. extrusion spring; 322. pressure control plate; 323. mounting groove; 324. limiting column; 325. elastic strip; 326. limiting block; 327. limiting groove; 33. supporting spring; 34. carbon brush; 35. scraping device; 351. hinge shaft; 352. scraping plate; 353. torsion spring; 354. pushing bag; 36. strengthening device; 361. pressurizing cylinder; 362. extrusion column; 363. extrusion bag; 364. connecting pipe; 371. extrusion control valve; 372. control rod. DETAILED DESCRIPTION

[0030] The following will be combined with the drawings in the embodiments of the present application to clearly and completely describe the technical solutions in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of this application.

[0031] Example

[0032] See also Figure 1 and Figure 2 A high-stability wind turbine slip ring device comprises a shell 1 and an inner ring 2. The top and bottom ends of the shell 1 are respectively movably sleeved on the top and bottom ends of the inner ring 2. A plurality of conductive rings 21 are equidistantly mounted on the inner ring 2 in the shell 1. Two mounting posts 11 are fixedly mounted in the shell 1. A plurality of brushes 3 are fixedly mounted on the mounting posts 11. The brushes 3 are in sliding contact with the conductive rings 21. Please refer to Figure 4 and Figure 5 The brush 3 includes a mounting shell 31, a pressure control device 32, a support spring 33 and a carbon brush 34. The top of the mounting shell 31 is equipped with a pressure control device 32 for automatically adjusting the pressure. The bottom end of the pressure control device 32 is fixedly connected with a support spring 33. The other end of the support spring 33 is fixedly connected with a carbon brush 34. One end of the carbon brush 34 is slidably mounted in the mounting shell 31. The other end of the carbon brush 34 extends out of the mounting shell 31 and is in sliding contact with the conductive ring 21. A limit bar is fixedly mounted on the bottom end of the inner wall of the mounting shell 31. The limit bar is used to prevent the carbon brush 34 from sliding out of the mounting shell 31.

[0033] See also Figure 4-Figure 6 The pressure control device 32 includes an extrusion spring 321, a pressure control plate 322 and a limiting structure. The top of the mounting shell 31 is fixedly connected to the extrusion spring 321, and the other end of the extrusion spring 321 is fixedly connected to the pressure control plate 322. The pressure control plate 322 is slidably installed in the mounting shell 31. The pressure control plate 322 and the carbon brush 34 are installed with a limiting structure for controlling whether the pressure control plate 322 can slide in the mounting shell 31. The limiting structure includes an installation groove 323, a limiting column 324, an elastic strip 325 and a limiting block 326. The pressure control plate 322 is provided with a stopper on the end surface facing the inner wall of the mounting shell 31. The mounting groove 323 has a limit block 326 slidably installed in the mounting groove 323, and the limit block 326 is connected to the side wall of the mounting groove 323 near the middle position of the pressure control plate 322 through an elastic band, and the elastic band is used to reset the limit block 326. Two limit columns 324 are fixedly connected to the end surface of the carbon brush 34 facing the pressure control plate 322, and an elastic strip 325 is embedded at one end of the limit column 324 facing the pressure control plate 322. The elastic strip 325 extends into the mounting groove 323, and when the elastic strip 325 slides into the mounting groove 323, it can push the limit block 326 to move to the outside of the mounting groove 323. Please refer to Figure 4 , a plurality of limit grooves 327 are equidistantly provided on the inner wall of the mounting shell 31; when the wind power slip ring is in operation, the carbon brush 34 is always in sliding contact with the conductive ring 21. When the carbon brush 34 is gradually worn, the extrusion spring 321 pushes the pressure control plate 322 to move toward the elastic strip 325 and the limit column 324, so that the pressure control plate 322 pushes the elastic strip 325, the limit column 324 and the carbon brush 34 to squeeze the conductive ring 21. In the process of the pressure control plate 322 moving toward the limit column 324, the limit block 326 is squeezed by the elastic strip 325, so that the limit block 326 slides toward the limit groove 327, so that the limit block 326 is stuck in the limit groove 327, so that the limit block 326 limits the pressure control plate 322, so that the carbon brush 34 is only supported by the elastic force of the support spring 33. The force support prevents the excessive elastic force of the extrusion spring 321 from being transmitted to the limit post 324 and the carbon brush 34, resulting in excessive extrusion force between the carbon brush 34 and the conductive ring 21, resulting in a phenomenon of aggravated wear. When the carbon brush 34 is worn to a certain extent, the carbon brush 34 cannot provide an extrusion force on the limit post 324 and the mounting groove 323, and the limit block 326 slides down into the mounting groove 323 under the action of the elastic band. At this time, the extrusion spring 321 repeatedly applies elastic force to the pressure control plate 322 to further compensate for the wear of the carbon brush 34, thereby controlling the extrusion force between the carbon brush 34 and the conductive ring 21 to always be maintained within a fixed range, thereby avoiding the phenomenon that the carbon brush 34 wears too quickly or the connection is unstable due to fluctuations in the extrusion force between the carbon brush 34 and the conductive ring 21.

[0034] The conductive ring 21 is set in a spiral shape, and the length of the conductive ring 21 is equal to the width of the carbon brush 34. During the rotation of the conductive ring 21, the spiral conductive ring 21 contacts the end surface of the carbon brush 34 in sequence, which can reduce the friction surface between the carbon brush 34 and the conductive ring 21 and make the carbon brush 34 wear evenly.

[0035] A ball is movably embedded on the end surface of the limiting block 326 close to the carbon brush 34. When the limiting block 326 slides into the limiting groove 327, the friction between the limiting block 326 and the side wall of the limiting groove 327 is reduced.

[0036] See also Figure 3 , Figure 4 and Figure 6 A scraping device 35 for periodically cleaning carbon powder on the conductive ring 21 is installed on one side of the mounting shell 31. The scraping device 35 includes a hinge shaft 351, a scraping plate 352, a torsion spring 353 and a pushing capsule 354. A scraping groove is opened on one side of the mounting shell 31. The scraping groove is connected to the limit groove 327. The bottom end of the scraping groove is fixedly installed with a hinge shaft 351. A scraping plate 352 is movably sleeved on the hinge shaft 351. One end of the scraping plate 352 is in the scraping groove and is close to the inner wall of the scraping groove. Please refer to Figure 2 , the other end of the scraper plate 352 is close to the conductive ring 21 (at this time, the scraper plate 352 is not in contact with the conductive ring 21), and the two ends of the hinge shaft 351 are fixed with a torsion spring 353, one end of the torsion spring 353 is fixedly connected to the scraper plate 352, and the other end of the torsion spring 353 is fixedly connected to the side wall of the scraper groove. A plurality of push capsules 354 are equidistantly installed on one side of the scraper plate 352 close to the inner wall of the scraper groove, and the push capsules 354 are filled with gas; when the carbon brush 34 is worn by the conductive ring 21, the pressure control device 32 pushes the support spring 33 and the carbon brush 34 to compensate for the wear, the pressure control plate 322 of the pressure control device 32 is When the inner ring 2 is installed and moves inside the shell 31, when the side wall of the pressure control device 32 is facing the pushing capsule 354, the limiting column 324 and the elastic strip 325 push the limiting block 326 into the limiting groove 327, and the limiting block 326 entering the limiting groove 327 pushes the elastic strip 325 at the same time, so that the pushing capsule 354 drives the scraper plate 352 to rotate around the hinge shaft 351, so that the other end of the scraper plate 352 is close to the side wall of the conductive ring 21. During the rotation of the inner ring 2, the conductive ring 21 on the inner ring 2 is scraped and cleaned by the scraper plate 352, thereby avoiding excessive carbon powder remaining on the conductive ring 21 and affecting the contact between the carbon brush 34 and the conductive ring 21.

[0037] See also Figure 4-Figure 7The interior of the mounting shell 31 is provided with a reinforcing device 36 for increasing the mortgage force of the scraper plate 352. The reinforcing device 36 includes a pressurizing cylinder 361, an extrusion column 362, an extrusion bag 363 and a connecting pipe 364. The pressurizing cylinder 361 is fixedly installed at the top of the interior of the mounting shell 31. The extrusion column 362 is installed in the pressurizing cylinder 361 in a sliding seal. One end of the extrusion column 362 passes through and extends out of the pressurizing cylinder 361. One end of the extrusion column 362 extending out of the pressurizing cylinder 361 is fixedly connected to the pressure control plate 322. The mounting groove 323 is close to the center of the pressure control plate 322. An extrusion bag 363 is fixedly installed on the inner wall of the extrusion bag 363, and the extrusion bag 363 and the pressurizing cylinder 361 are connected through a connecting pipe 364, and the connecting pipe 364 is embedded in the extrusion column 362 and the pressure control plate 322. A pressure relief device for controlling the flow of gas is installed at the connection between the connecting pipe 364 and the extrusion bag 363. The pressure relief device includes an extrusion control valve 371 and a control rod 372. The extrusion control valve 371 is fixedly connected to the connection between the connecting pipe 364 and the extrusion bag 363. One end of the control rod 372 is fixedly connected to the extrusion control valve 371. The control rod The other end of 372 passes through the limit block 326; when the carbon brush 34 is worn and the pressure control device 32 gradually compensates for the carbon brush 34, the pressure control plate 322 drives the extrusion column 362 to move, so that the extrusion column 362 squeezes the gas inside the pressurizing cylinder 361. There is high-pressure gas in the pressurizing cylinder 361. When the limit block 326 is squeezed by the limit column 324 and the elastic strip 325, it moves toward the limit groove 327 and squeezes the push capsule 354. When the control rod 372 that passes through the limit block 326 first contacts the push capsule 354, and the reaction force of the push capsule 354 is released. Down, the pushing capsule 354 pushes the control rod 372 to press the extrusion control valve 371, so that the extrusion control valve 371 opens, and the high-pressure gas in the pressurizing cylinder 361 enters the extrusion capsule 363 through the extrusion control valve 371, so that the extrusion capsule 363 expands, and the expanded extrusion capsule 363 squeezes the limit block 326 and the pushing capsule 354, so that the pushing capsule 354 pushes the scraper plate 352 to rotate around the hinge shaft 351, so that the contact force between the other end of the scraper plate 352 and the conductive ring 21 increases, thereby enhancing the scraping effect of the scraper plate 352 on the conductive ring 21.

[0038] A damping hole is provided on the extrusion bag 363, and the top end of the control rod 372 is needle-shaped. When the top end of the control rod 372 presses against the pushing bag 354, the pushing bag 354 is punctured. The extrusion bag 363 and the pushing bag 354 exhaust air slowly through the damping hole, which is similar to the phenomenon of air leakage in a balloon. This prevents the extrusion bag 363 from squeezing the limit block 326 and the pushing bag 354 for a long time, thereby preventing the scraper plate 352 from being in contact for a long time, resulting in serious wear of the scraper plate 352 and the conductive ring 21.

[0039] The working principle of the embodiment of the present invention is as follows:

[0040] When the wind power slip ring is used, the inner ring 2 of the wind power slip ring is fixedly mounted on the rotating shaft, and the housing 1 is fixedly mounted on the wind turbine generator.

[0041] During operation, the rotating shaft drives the inner ring 2 and the conductive ring 21 to rotate, and the conductive ring 21 and the carbon brush 34 slide and rub. When the carbon brush 34 is gradually worn, the extrusion spring 321 pushes the pressure control plate 322 to move toward the elastic strip 325 and the limiting column 324, so that the pressure control plate 322 pushes the elastic strip 325, the limiting column 324 and the carbon brush 34 to squeeze the conductive ring 21. In the process of the pressure control plate 322 moving toward the limiting column 324, the limiting block 326 is squeezed by the elastic strip 325, so that the limiting block 326 slides toward the limiting groove 327, so that the limiting block 326 is stuck in the limiting groove 327, so that the limiting block 326 limits the pressure control plate 322, so that the carbon brush 34 is only supported by the elastic force of the supporting spring 33, thereby preventing The excessive elastic force of the anti-extrusion spring 321 is transmitted to the limit post 324 and the carbon brush 34, resulting in excessive extrusion pressure between the carbon brush 34 and the conductive ring 21, resulting in a phenomenon of aggravated wear; when the carbon brush 34 is worn to a certain extent, the carbon brush 34 cannot provide an extrusion pressure on the limit post 324 and the mounting groove 323, and the limit block 326 slides down into the mounting groove 323 under the action of the elastic band. At this time, the extrusion spring 321 repeatedly applies elastic force to the pressure control plate 322 to further compensate for the wear of the carbon brush 34, thereby controlling the extrusion pressure between the carbon brush 34 and the conductive ring 21 to always be maintained within a fixed range, thereby avoiding the phenomenon that the carbon brush 34 wears too quickly or the connection is unstable due to fluctuations in the extrusion pressure between the carbon brush 34 and the conductive ring 21.

[0042] When the carbon brush 34 is worn by the conductive ring 21 and the pressure control device 32 pushes the support spring 33 and the carbon brush 34 to compensate for the wear, the pressure control plate 322 of the pressure control device 32 moves in the mounting shell 31, and the limiting column 324 and the elastic strip 325 push the limiting block 326 to enter the limiting groove 327. When the limiting block 326 is facing the pushing capsule 354, the limiting block 326 entering the limiting groove 327 pushes the elastic strip 325 at the same time, so that the pushing capsule 354 drives the scraper plate 352 to rotate around the hinge shaft 351, so that the other end of the scraper plate 352 is close to the side wall of the conductive ring 21. During the rotation of the inner ring 2, the conductive ring 21 on the inner ring 2 is scraped and cleaned by the scraper plate 352, thereby avoiding excessive carbon powder remaining on the conductive ring 21 and affecting the contact between the carbon brush 34 and the conductive ring 21.

[0043] When the carbon brush 34 is worn and the pressure control device 32 gradually compensates for the carbon brush 34, the pressure control plate 322 drives the extrusion column 362 to move, so that the extrusion column 362 squeezes the gas inside the pressurizing cylinder 361. There is high-pressure gas in the pressurizing cylinder 361. When the limit block 326 is squeezed by the limit column 324 and the elastic strip 325, it moves toward the limit groove 327 and squeezes the pushing capsule 354. The control rod 372 that passes through the limit block 326 first contacts the pushing capsule 354. Under the reaction force of the pushing capsule 354, the pushing capsule 354 is pushed. The pushing limit groove 327 squeezes the squeezing control valve 371, so that the squeezing control valve 371 opens, and the high-pressure gas in the pressurizing cylinder 361 enters the squeezing bag 363 through the squeezing control valve 371, so that the squeezing bag 363 expands, and the expanded squeezing bag 363 squeezes the limit block 326 and the pushing bag 354, so that the pushing bag 354 pushes the scraping plate 352 to rotate around the hinge shaft 351, so that the contact force between the other end of the scraping plate 352 and the conductive ring 21 increases, thereby enhancing the scraping effect of the scraping plate 352 on the conductive ring 21.

Claims

1. A high-stability wind turbine slip ring device, comprising a housing (1) and an inner ring (2), wherein a plurality of conductive rings (21) are equidistantly mounted on the inner ring (2), and a plurality of brushes (3) equidistantly mounted are fixedly mounted in the housing (1), wherein the brushes (3) are in sliding contact with the conductive rings (21), and wherein: The brush (3) comprises: A mounting shell (31) fixedly mounted on the housing (1); A pressure control device (32) is movably mounted on the top of the mounting shell (31) and is used to automatically adjust the pressure; A support spring (33), one end of which is fixedly connected to the bottom end of the pressure control device (32); A carbon brush (34) is fixedly connected to the other end of the support spring (33), one end of which is slidably mounted in the mounting shell (31), and the other end of which extends out of the mounting shell (31) and is in sliding contact with the conductive ring (21); The pressure control device (32) comprises: A compression spring (321) fixedly connected to a top end inside the mounting shell (31); A pressure control plate (322) is fixedly connected to the other end of the extrusion spring (321) and is slidably mounted in the mounting shell (31); A limiting structure, mounted on the pressure control plate (322) and the carbon brush (34), and used to control whether the pressure control plate (322) can slide in the mounting shell (31); The limiting structure comprises: A mounting groove (323) is formed on an end surface of the pressure control plate (322) facing the inner wall of the mounting shell (31); A limit block (326) is slidably mounted in the mounting groove (323), and an elastic band is connected to the side wall near the middle position of the pressure control plate (322), and the other end of the elastic band is connected to the inner wall of the mounting groove (323); A limiting column (324) is fixedly connected to an end surface of the carbon brush (34) facing the pressure control plate (322); An elastic strip (325) is embedded in one end of the limiting column (324) facing the pressure control plate (322), and the elastic strip (325) extends into the installation groove (323); A plurality of limit grooves (327) are equidistantly formed on the inner wall of the mounting shell (31); A scraping device (35) for periodically cleaning carbon powder on the conductive ring (21) is installed on one side of the installation shell (31); A scraping groove is provided on one side of the mounting shell (31), the scraping groove being in communication with the limiting groove (327), and the scraping device (35) comprises: A hinge shaft (351) is fixedly mounted on the bottom end of the scraping groove; A scraping plate (352) is movably sleeved on the hinge shaft (351), one end of the scraping plate (352) is located in the scraping groove and is closely attached to the inner wall of the scraping groove, and the other end of the scraping plate (352) is close to the conductive ring (21); A torsion spring (353) is movably sleeved on both ends of the hinge shaft (351), one end of which is fixedly connected to the scraping plate (352) and the other end of which is fixedly connected to the side wall of the scraping groove; A push bag (354) is equidistantly mounted on one side of the scraping plate (352) close to the inner wall of the scraping groove, and the push bag (354) is filled with gas; A reinforcing device (36) for increasing the securing force of the scraper plate (352) is provided inside the mounting shell (31).

2. A high stability wind turbine generator set slip ring device according to claim 1, characterized in that: A limit strip is fixedly mounted on the bottom end of the inner wall of the mounting shell (31), and the limit strip is used to prevent the carbon brush (34) from sliding out of the mounting shell (31).

3. A high stability wind turbine generator set slip ring device according to claim 1, characterized in that: The conductive ring (21) is configured in a spiral shape, and the length of the conductive ring (21) is equal to the width of the carbon brush (34).

4. A high stability wind turbine generator set slip ring device according to claim 1, characterized in that: A ball is movably embedded on the end surface of the limit block (326) close to the carbon brush (34).

5. A high stability wind turbine generator slip ring device according to claim 1, characterized in that: The reinforcing device (36) comprises: A pressurizing cylinder (361) is fixedly mounted on the top end of the mounting shell (31); An extrusion column (362), one end of which is slidably and sealingly installed in the pressure cylinder (361), and the other end of which extends out of the pressure cylinder (361) and is fixedly connected to the pressure control plate (322); An extrusion bag (363) is fixedly mounted on an inner wall of the mounting groove (323) close to the center of the pressure control plate (322), and the extrusion bag (363) and the pressurizing cylinder (361) are connected via a connecting pipe (364); A pressure relief device for controlling the flow of gas is installed at the connection point between the connecting pipe (364) and the extrusion bag (363).

6. A high-stability wind turbine generator set slip ring device according to claim 5, characterized in that: The pressure relief device comprises: An extrusion control valve (371) is fixedly connected to a connection point between the connecting pipe (364) and the extrusion bag (363); The control rod (372) has one end fixedly connected to the extrusion control valve (371) and the other end passing through the limit block (326).

7. A high stability wind turbine generator set slip ring device according to claim 6, characterized in that: A damping hole is provided on the squeezing capsule (363), and the top end of the control rod (372) is needle-shaped. When the top end of the control rod (372) presses against the pushing capsule (354), a hole is punctured in the pushing capsule (354).

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