Wind power variable pitch slip ring friction pair performance test platform

Abstract

The utility model discloses a wind power variable pitch slip ring friction pair performance test platform, which relates to the technical field of wind power variable pitch slip ring testing and comprises a base, a first support frame, a second support frame, a motor, a torque sensor, a coupler, a pivotal bearing, an outer slip ring clamp, an inner slip ring clamp and the like. The second support frame is movably connected with the base, and the slip ring clamp is provided with a slip ring clamping jaw and a slip ring clamping cylinder, so that the grasping angle of the clamping jaw can be adjusted, and the wind power variable pitch slip ring testing device can meet the testing requirements of various types of wind power variable pitch slip rings; the temperature controller and the humidity controller are arranged on the base to simulate the real working environment of the wind power variable-pitch slip ring, so that the test result is more accurate, different humidity and temperature can be adjusted through the controllers, and the working state of the wind power variable-pitch slip ring can be tested in different environments.

Description

Technical Field

[0001] This utility model relates to the field of wind turbine pitch slip ring testing technology, specifically a wind turbine pitch slip ring friction pair performance testing platform. Background Technology

[0002] Pitch slip rings are key components in wind turbines, connecting the rotating blades and the main shaft. They ensure stable and efficient transmission of power and signals between the rotating and stationary parts, guaranteeing efficient generator operation. However, excessive contact resistance and frictional torque often occur during operation, causing signal instability and seriously endangering the safe operation of the generator. Therefore, a device is needed to test its friction and electrical contact performance. For example, CN218885396U describes a pitch slip ring testing device, which includes a guide rail, balls, guide groove, ring groove, fixed ring, and slider. The slider mounted on the fixed ring slides into the ring groove through the guide groove. The pitch slip ring body connected to the fixed ring can be installed inside a support base, which slides on the balls on the guide rail. However, this technical solution cannot meet the testing needs of various wind turbine pitch slip rings. Once the fixture is determined, it can only serve the testing of a certain brand of wind turbine pitch slip ring, and it cannot test contact resistance. It has limited functionality and low practicality, and it cannot test the operating data of wind turbine pitch slip rings under different temperature and humidity conditions. Utility Model Content

[0003] The purpose of this invention is to provide a performance testing platform for wind turbine pitch slip ring friction pairs to solve the problems mentioned in the background art.

[0004] To achieve the above objectives, this utility model provides the following technical solution: a wind turbine pitch slip ring friction pair performance testing platform, comprising: a base, a first support frame on the left side of the base, a motor bracket fixed to the upper outer side of the first support frame, a bearing seat on the top, a motor fixed on the motor bracket, a first rotating shaft connected to the output end of the motor, a torque sensor connected to the first rotating shaft, a coupling connected to the other end of the first rotating shaft, a second rotating shaft connected to the right side of the coupling, the second rotating shaft passing through the bearing seat and having a slewing bearing at its other end, an inner slip ring clamp on the slewing bearing, a second support frame coaxially positioned on the right side of the base with the first support frame, the bottom of the second support frame being movably connected to the base via a slide rail, an outer slip ring clamp coaxially positioned on the second support frame with the inner slip ring clamp, a data acquisition unit and a controller on the base, and the torque sensor being electrically connected to the data acquisition unit and the controller.

[0005] Furthermore, the inner slip ring clamp includes: an inner slip ring mounting seat on a slewing bearing, and the inner slip ring mounting seat is provided with three inner slip ring jaws and an inner slip ring clamping cylinder.

[0006] Furthermore, the outer slip ring clamp includes: an outer slip ring jaw and an outer slip ring clamping cylinder.

[0007] Furthermore, a wind turbine pitch slip ring to be tested is provided between the inner slip ring clamp and the outer slip ring clamp, and the wind turbine pitch slip ring is clamped and fixed based on the inner slip ring jaws and the outer slip ring jaws.

[0008] Preferably, the data acquisition device is connected to a resistance measuring instrument and electrically connected to the wind turbine pitch slip ring.

[0009] Preferably, the base is provided with a temperature controller and a humidity controller, which are electrically connected to the data acquisition unit and the controller. The temperature controller includes a heater and a cooler, and the humidity controller includes a humidifier and a dehumidifier.

[0010] Preferably, the second support frame is equipped with a temperature sensor and a humidity sensor, which are electrically connected to the data acquisition unit and the controller.

[0011] Preferably, the base is provided with an isolation cover.

[0012] Compared with the prior art, the beneficial effects of this utility model are as follows: This utility model sets a slide rail at the bottom of the second support frame, so that the second support frame is movably connected to the base. A slip ring clamp and a slip ring clamping cylinder are set on the slip ring clamp, making the clamping angle of the clamp adjustable. This allows this utility model to adapt to the testing needs of various types of wind turbine pitch slip rings. Furthermore, by setting a temperature controller and a humidity controller on the base to simulate the real working environment of the wind turbine pitch slip ring, the test results are more accurate. Different humidity and temperature can be adjusted through the controller, allowing testing of the wind turbine pitch slip ring's working state under different environments. Finally, the torque sensor, resistance meter, temperature sensor, humidity sensor, and other equipment are electrically connected to the controller, making the equipment simple and convenient to operate, and enhancing its practicality. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the structure of this utility model;

[0014] Figure 2 This is the front view of the present utility model;

[0015] Figure 3 This is a schematic diagram of the structure of the motor and torque sensor of this utility model;

[0016] Figure 4 This is a schematic diagram of the internal slip ring clamp structure of this utility model;

[0017] Figure 5 This is a schematic diagram of the external slip ring clamp structure of this utility model;

[0018] Figure 6This is a schematic diagram of the first support frame structure of this utility model;

[0019] In the diagram: 1. Base, 2. First support frame, 3. Motor bracket, 4. Bearing seat, 5. Motor, 6. First shaft, 7. Torque sensor, 8. Coupling, 9. Second shaft, 10. Slewing bearing, 11. Inner slip ring clamp, 12. Second support frame, 13. Slide rail, 14. Outer slip ring clamp, 15. Data acquisition unit, 16. Controller, 17. Wind turbine pitch slip ring, 18. Resistance meter, 19. Temperature controller, 20. Humidity controller, 21. Temperature sensor, 22. Humidity sensor, 1101. Inner slip ring mounting base, 1102. Inner slip ring gripper, 1103. Inner slip ring clamping cylinder, 1401. Outer slip ring gripper, 1402. Outer slip ring clamping cylinder. Detailed Implementation

[0020] To enable those skilled in the art to better understand the technical solutions of this utility model, the technical solutions in the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings and specific embodiments.

[0021] Please refer to Figure 1-5 This utility model provides a wind turbine pitch slip ring friction pair performance testing platform, comprising: a base 1, a first support frame 2 on the left side of the base 1, a motor bracket 3 fixed on the upper outer side of the first support frame 2, a bearing seat 4 on the top, a motor 5 fixed on the motor bracket 3, a first rotating shaft 6 connected to the output end of the motor 5, a torque sensor 7 connected to the first rotating shaft 6, a coupling 8 connected to the other end of the first rotating shaft 6, a second rotating shaft 9 connected to the right side of the coupling 8, the second rotating shaft 9 passing through the bearing seat 4 and having a slewing bearing 10 at the other end, an inner slip ring clamp 11 on the slewing bearing 10, a second support frame 12 coaxially positioned on the right side of the base 1 and the first support frame 2, the bottom of the second support frame 12 being movably connected to the base 1 via a slide rail 13, an outer slip ring clamp 14 coaxially positioned on the second support frame 12 and the inner slip ring clamp 11, a data acquisition unit 15 and a controller 16 on the base 1, and the torque sensor 7 being electrically connected to the data acquisition unit 15 and the controller 16.

[0022] The first support frame 2 and the second support frame 12 are on the same axis, and the inner slip ring clamp 11 and the outer slip ring clamp 14 are on the same axis. The second support frame 12 moves on the base 1 via the slide rail 13 to adjust the distance between the inner slip ring clamp 11 and the outer slip ring clamp 14. Preferably, the bottom of the slide rail 13 is provided with a moving cylinder to provide power for the movement of the second support frame 12, and a slewing bearing 10 is provided to further increase the stability of the equipment. The torque sensor 7 is used to measure the friction torque of the wind turbine pitch slip ring 17 during rotation, evaluate its friction performance, and is connected to the data acquisition unit 15 to collect the friction pair performance data.

[0023] The inner slip ring clamp 11 includes: an inner slip ring mounting seat 1101 on the slewing bearing 10, and three inner slip ring clamping claws 1102 and an inner slip ring clamping cylinder 1103 on the inner slip ring mounting seat 1101.

[0024] The angle between the three inner slip ring clamps 1102 is 120 degrees, and the opening and closing angle of the inner slip ring clamps 1102 is adjusted by the inner slip ring clamping cylinder 1103 so that the inner slip ring clamp 11 can be adapted to clamp and fix different types of wind turbine pitch slip rings 17.

[0025] The outer slip ring clamp 14 includes an outer slip ring jaw 1401 and an outer slip ring clamping cylinder 1402.

[0026] A wind turbine pitch slip ring 17 to be tested is provided between the inner slip ring clamp 11 and the outer slip ring clamp 14. The wind turbine pitch slip ring 17 is clamped and fixed based on the inner slip ring claw 1102 and the outer slip ring claw 1401.

[0027] Among them, the inner slip ring clamp 1102 clamps one side of the inner slip ring of the wind turbine pitch slip ring 17 based on the inner slip ring clamping cylinder 1103, and the outer slip ring clamp 1401 clamps one side of the outer slip ring of the wind turbine pitch slip ring 17 based on the outer slip ring clamping cylinder 1402, thus clamping and fixing them.

[0028] The data acquisition unit 15 is connected to a resistance measuring instrument 18, which is electrically connected to the wind turbine pitch slip ring 17.

[0029] The resistance measuring instrument 18 is used to measure the contact resistance of the slip ring and test its electrical performance.

[0030] The base 1 is equipped with a temperature controller 19 and a humidity controller 20, which are electrically connected to the data acquisition unit 15 and the controller 16. The temperature controller 19 includes a heater and a cooler, and the humidity controller 20 includes a humidifier and a dehumidifier.

[0031] Among them, the temperature controller 19 is used to simulate and adjust the temperature of the test environment, and the humidity controller 20 is used to simulate and adjust the humidity of the test environment, so that the test environment is the same as the actual working environment of the slip ring, making the test data more accurate. The temperature and humidity can be changed by the controller 16 to simulate different working environments, so that the test platform can test from multiple angles and obtain the changes in the working data of the slip ring under different environments.

[0032] The second support frame 12 is equipped with a temperature sensor 21 and a humidity sensor 22, which are electrically connected to the data acquisition unit 15 and the controller 16.

[0033] Temperature sensor 21 and humidity sensor 22 are used to detect the temperature and humidity of the test platform in real time and transmit the data to data acquisition unit 15. If the temperature and humidity do not reach the set value, they are adjusted in time by controller 16.

[0034] The base 1 is equipped with an isolation cover.

[0035] The isolation enclosure isolates the equipment from the outside air, preventing outside air from affecting the temperature and humidity values ​​inside the enclosure, thus making the test results more accurate.

[0036] When using this utility model, firstly, the second support frame 12 is adjusted to a suitable position via the slide rail 13. The outer slip ring clamp 14 clamps one side of the outer slip ring of the wind turbine pitch slip ring 17, and the inner slip ring clamp 11 clamps one side of the inner slip ring of the wind turbine pitch slip ring 17, thus fixing the wind turbine pitch slip ring 17 on the test platform. Then, the motor 5 starts to supply power, and the first rotating shaft 6 drives the slewing bearing 10 to start rotating via the second rotating shaft 9. The inner slip ring of the wind turbine pitch slip ring 17 starts to simulate working operation based on the inner slip ring clamp 11. The torque sensor 7 receives the friction torque of the wind turbine pitch slip ring 17 during rotation via the coupling 8 and transmits the data to the data acquisition unit 15. Preferably, the controller 16 controls the temperature controller 19 and the humidity controller 20 to simulate the temperature and humidity in the actual working environment, and the temperature sensor 21 and the humidity sensor 22 detect in real time whether the temperature and humidity have reached the set values. The contact resistance is measured by the resistance measuring instrument 18 to test its electrical performance. Finally, all data is summarized by the data acquisition unit 15 to facilitate the next step of the work.

[0037] Although embodiments of the present invention have been shown and described, it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. Based on the embodiments of the present invention, it will be understood by those skilled in the art that all other embodiments obtained by making various changes, modifications, substitutions and alterations to these embodiments without departing from the principles and spirit of the present invention and without creative effort are within the scope of protection of the present invention.

Claims

1. A performance testing platform for wind turbine pitch slip ring friction pairs, characterized in that, include: A base (1) is provided on the left side of the base (1). A first support frame (2) is provided on the upper outer side of the first support frame (2). A motor bracket (3) is fixed on the upper outer side of the first support frame (2). A bearing seat (4) is provided on the top. A motor (5) is fixed on the motor bracket (3). A first rotating shaft (6) is connected to the output end of the motor (5). A torque sensor (7) is connected to the first rotating shaft (6). A coupling (8) is connected to the other end of the first rotating shaft (6). A second rotating shaft (9) is connected to the right side of the coupling (8). The second rotating shaft (9) passes through the bearing seat (4) and has a slewing bearing ( ) at the other end. 10), the slewing bearing (10) is provided with an inner slip ring clamp (11), the base (1) is provided with a second support frame (12) on the right side coaxial with the first support frame (2), the bottom of the second support frame (12) is movably connected to the base (1) through a slide rail (13), the second support frame (12) is provided with an outer slip ring clamp (14) on the second support frame (12) coaxial with the inner slip ring clamp (11), the base (1) is provided with a data acquisition device (15) and a controller (16), and the torque sensor (7) is electrically connected to the data acquisition device (15) and the controller (16).

2. The wind turbine pitch slip ring friction pair performance testing platform according to claim 1, characterized in that, The inner slip ring clamp (11) includes: an inner slip ring mounting seat (1101) on the slewing bearing (10), and the inner slip ring mounting seat (1101) is provided with three inner slip ring clamps (1102) and an inner slip ring clamping cylinder (1103).

3. The wind turbine pitch slip ring friction pair performance testing platform according to claim 1, characterized in that, The outer slip ring clamp (14) includes: an outer slip ring jaw (1401) and an outer slip ring clamping cylinder (1402).

4. The wind turbine pitch slip ring friction pair performance testing platform according to claim 3, characterized in that, A wind turbine pitch slip ring (17) to be tested is provided between the inner slip ring clamp (11) and the outer slip ring clamp (14). The wind turbine pitch slip ring (17) is clamped and fixed based on the inner slip ring claw (1102) and the outer slip ring claw (1401).

5. The wind turbine pitch slip ring friction pair performance testing platform according to claim 4, characterized in that, The data acquisition unit (15) is connected to a resistance measuring instrument (18) and an electrical connection to a wind turbine pitch slip ring (17).

6. The wind turbine pitch slip ring friction pair performance testing platform according to claim 5, characterized in that, The base (1) is equipped with a temperature controller (19) and a humidity controller (20), which are electrically connected to the data acquisition unit (15) and the controller (16). The temperature controller (19) includes a heater and a cooler, and the humidity controller (20) includes a humidifier and a dehumidifier.

7. The wind turbine pitch slip ring friction pair performance testing platform according to claim 6, characterized in that, The second support frame (12) is equipped with a temperature sensor (21) and a humidity sensor (22), which are electrically connected to the data acquisition unit (15) and the controller (16).

8. The wind turbine pitch slip ring friction pair performance testing platform according to claim 6, characterized in that, The base (1) is provided with an isolation cover.

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