Wind power bearing yaw gear ring friction surface fatigue life detection device and detection method thereof

Abstract

The invention provides a wind power bearing yaw gear ring friction surface fatigue life detection device and a detection method thereof, and relates to the field of gear ring friction surface detection. Four detection brackets are fixedly mounted at the top of the detection seat; four limiting shells are mounted on the outer side of the detection seat; when a clamping block matched with a new gear ring is selected for installation, a plug pushes a detection sliding block to overcome the resistance of a spring to stably move backwards, a limiting head is forced to completely retreat from a fixing hole, through the coherent action, it is confirmed that the installation of the clamping block reaches the preset positioning precision, and a road is more smoothly fastened and paved through a fixing screw; the problems that a common detection device is not provided with a good auxiliary mechanism, the installation position of a fixing mechanism cannot be detected in the fixing mechanism replacing process, deviation occurs when the fixing mechanism clamps a gear ring, and the friction face fatigue life detection precision is reduced are solved.

Description

Technical Field

[0001] This invention relates to the field of gear ring friction surface testing technology, and in particular to a device and method for testing the fatigue life of the friction surface of a wind turbine bearing yaw gear ring. Background Technology

[0002] The fatigue life testing device for the friction surface of the yaw gear ring of wind turbine bearings is a large-scale, precision electromechanical-hydraulic integrated testing equipment. It is specifically designed to simulate the loads and movements experienced by the yaw bearings of wind turbine generator sets under real working conditions, in order to accelerate the evaluation of the wear resistance, fatigue life, and reliability of the gear ring and friction pads.

[0003] Because the testing device needs to test gear rings of different specifications, different fixing mechanisms need to be changed when testing different gear rings in order to perform friction surface fatigue life testing on the gear rings. However, commonly used testing devices do not have good auxiliary mechanisms, which makes it impossible to test the installation position of the fixing mechanism during the replacement of the fixing mechanism. This causes deviations when the fixing mechanism clamps the gear ring, resulting in a decrease in the accuracy of friction surface fatigue life testing. Summary of the Invention

[0004] This invention discloses a device for testing the fatigue life of the friction surface of a wind turbine bearing yaw gear ring, in order to solve the problem that the commonly used testing devices mentioned in the background art do not have good auxiliary mechanisms, making it impossible to detect the installation position of the fixing mechanism during the replacement of the fixing mechanism, resulting in deviation when the fixing mechanism clamps the gear ring, and causing a decrease in the accuracy of the fatigue life test of the friction surface.

[0005] This invention provides a device and method for testing the fatigue life of the friction surface of a wind turbine bearing yaw gear ring, specifically comprising: a support base, on the top of which a testing seat is rotatably mounted; four testing brackets fixedly mounted on the top of the testing seat; four limiting shells mounted on the outer side of the testing seat; the support base further comprising: six supporting columns, which are fixedly mounted in a circular array at the bottom of the support base; and a testing motor fixedly mounted at the bottom of the support base.

[0006] Furthermore, the support base also includes: a gear, which is fixedly installed on the top of the rotating shaft of the detection motor; a fixed support, which is fixedly installed in the middle of the top of the support base; and a detection bracket fixed to the top of the fixed support.

[0007] Furthermore, the detection seat also includes: a connecting support column, the number of which is set to four, the connecting support column being integrally arranged in a cross shape on the outside of the detection seat; a transmission ring, the transmission ring being fixedly installed on the bottom of the detection seat; transmission teeth, the transmission teeth being opened on the inner side of the transmission ring; the transmission teeth meshing with gears; a fixing screw, the fixing screw being connected to one end of the connecting support column through a screw; and two limiting posts, the number of which is set to two, the limiting posts sliding symmetrically on one end of the connecting support column.

[0008] Furthermore, the detection seat also includes: a fixed slide, which slides on the top of the detection seat; a connecting side seat, which is fixedly installed on the rear end of the fixed slide; the middle of the rear end of the connecting side seat is rotatably connected to one end of the fixing screw; the two sides of the rear end of the connecting side seat are fixedly connected to one end of the limiting post; and a fixed slot, which is rectangular in shape and has two slots, which are symmetrically located at the middle of the upper and lower ends of the fixed slide.

[0009] Furthermore, the detection seat also includes: two detection sliders that slide symmetrically inside the fixed slide; springs installed between the fixed slide and the detection sliders; two limiting heads that are symmetrically and integrally disposed at the bottom rear end of the detection sliders; and two threaded holes that are symmetrically located on both sides of the fixed slide.

[0010] Furthermore, the detection seat also includes: a fixing tooth on one side of the clamping block, and the clamping block is fixedly installed on the front end of the fixed slide; a fixing frame, the number of fixing frames is set to two, and the fixing frames are symmetrically and integrally set on both sides of the rear end of the clamping block; a limiting plug, the shape of the limiting plug is rectangular, and the number of limiting plugs is set to two, and the limiting plugs are symmetrically and integrally set in the middle of the rear end of the clamping block; the limiting plug matches the fixing slot; the fixing frame and the fixing hole are fixedly connected by fixing screws.

[0011] Furthermore, the detection bracket also includes: an adjusting cylinder, which is fixedly installed on the top of the detection bracket; an adjusting bracket, which is fixedly installed on one end of the piston rod of the adjusting cylinder; a loading arm, which has two loading arms, one of which is fixedly installed longitudinally on one end of the adjusting bracket, and the other loading arm is fixedly installed laterally on the other end of the adjusting bracket; a friction seat, which is fixedly installed on one end of the loading arm; and a friction plate, which is fixedly installed on one end of the friction seat.

[0012] Furthermore, the limiting housing also includes: a limiting slider that slides in the middle of the limiting housing; a limiting screw that rotates at the bottom of the limiting slider; and a threaded connection between the limiting screw and the limiting housing.

[0013] This invention discloses a testing method for a fatigue life testing device for the friction surface of a wind turbine bearing yaw gear ring, comprising the following steps: 1) By placing the yaw gear ring of the wind turbine bearing on the top of the test seat, and then rotating the fixing screw, the fixing screw will drive the fixing slide to move, and the clamping block on one side of the fixing slide will contact the gear ring, thereby fixing and clamping the gear ring. 2) After the clamping block has finished fixing the gear ring, the limiting screw can be rotated. The limiting screw will drive the limiting slider to move upward, so that the top of the limiting slider contacts the side of the fixing screw. 3) By activating the adjusting cylinder, the adjusting cylinder will drive the friction plate to move through the adjusting bracket, so that the friction plate contacts the gear ring; 4) By starting the detection motor, the detection motor will drive the detection seat to rotate through the cooperation between the gears and transmission teeth, so that the gear ring rotates and rubs against the friction plate to detect the fatigue life of the friction surface.

[0014] The fatigue life testing device for the friction surface of the yaw gear ring of a wind turbine bearing provided by this invention has the following beneficial effects: When inspecting gear rings of different specifications, the device demonstrates excellent adaptability and safety through its ingenious modular and linkage detection mechanism. Operators only need to remove the connecting screws between the fixing frame and the fixing hole to remove the original clamping block for replacement.

[0015] When a clamping block adapted to the new gear ring is selected for installation, the process of accurately inserting the limit plug into the fixing slot automatically completes the calibration. The plug pushes the detection slider to overcome the spring resistance and move smoothly backward, forcing the limiting head to completely exit from the fixing hole. This continuous action not only confirms that the installation of the clamping block has reached the preset positioning accuracy, but also paves the way for the smooth tightening of the fixing screws, so that the entire fixing system can ensure clamping accuracy while also having an intelligent installation verification function.

[0016] After the clamping block securely fixes the gear ring, tightening the limiting screw drives the limiting slider to rise steadily, ensuring its top fits tightly against the side wall of the fixing screw. This effectively prevents accidental rotation of the fixing screw under vibration conditions, fundamentally preventing the risk of clamping loosening and providing multiple safety guarantees for long-term continuous testing. This innovative design, integrating quick changeover, precise positioning, automatic calibration, and mechanical anti-loosening, significantly improves testing efficiency and equipment operational stability. Attached Figure Description

[0017] To more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings of the embodiments will be briefly described below.

[0018] The accompanying drawings described below are only related to some embodiments of the invention and are not intended to limit the invention.

[0019] In the attached diagram: Figure 1 This is a schematic diagram of the overall shaft side three-dimensional structure of the wind turbine bearing yaw gear friction surface fatigue life detection device according to an embodiment of the present invention.

[0020] Figure 2 This is a schematic diagram of the support base structure of the fatigue life detection device for the friction surface of the yaw gear ring of the wind turbine bearing, according to an embodiment of the present invention.

[0021] Figure 3 This is a schematic diagram of the detection seat structure of the fatigue life detection device for the friction surface of the yaw gear ring of a wind turbine bearing, according to an embodiment of the present invention.

[0022] Figure 4 This is a schematic diagram of the fixed slide structure of the wind turbine bearing yaw gear friction surface fatigue life testing device according to an embodiment of the present invention.

[0023] Figure 5 This is a schematic diagram of the disassembly structure of the fixed slide of the fatigue life testing device for the friction surface of the yaw gear ring of a wind turbine bearing, according to an embodiment of the present invention.

[0024] Figure 6 This is a schematic diagram of the clamping block structure of the fatigue life testing device for the friction surface of the yaw gear ring of a wind turbine bearing, according to an embodiment of the present invention.

[0025] Figure 7 This is a schematic diagram of the detection bracket structure of the fatigue life detection device for the friction surface of the yaw gear ring of the wind turbine bearing, according to an embodiment of the present invention.

[0026] Figure 8 This is a schematic diagram of the disassembly structure of the limiting shell of the wind turbine bearing yaw gear friction surface fatigue life testing device according to an embodiment of the present invention.

[0027] In the diagram, the correspondence between component names and drawing numbers is as follows: 1. Support base; 101. Support column; 102. Detection motor; 103. Gear; 104. Fixed support; 2. Detection seat; 201. Connecting column; 202. Transmission ring; 203. Transmission gear; 204. Fixed screw; 205. Limiting post; 206. Fixed slide; 207. Connecting side seat; 208. Fixed slot; 209. Detection slider; 210. Limiting head; 211. Fixing hole; 212. Clamping block; 213. Fixing frame; 214. Limiting plug; 3. Detection bracket; 301. Adjusting cylinder; 302. Adjusting bracket; 303. Loading arm; 304. Friction seat; 305. Friction plate; 4. Limiting shell; 401. Limiting slider; 402. Limiting screw. Detailed Implementation

[0028] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0029] Example: Please refer to Figures 1 to 8 As shown: This invention provides a device and method for testing the fatigue life of the friction surface of a wind turbine bearing yaw gear ring, comprising: a support base 1, with a test seat 2 rotatably mounted on the top of the support base 1; four test brackets 3 fixedly mounted on the top of the test seat 2; four limiting shells 4 mounted on the outer side of the test seat 2; the support base 1 further comprising: six support columns 101 arranged in a circular array and fixedly mounted on the bottom of the support base 1; a test motor 102 fixedly mounted on the bottom of the support base 1; a gear 103 fixedly mounted on the top of the shaft of the test motor 102; a fixed support 104 fixedly mounted on the top center of the support base 1; and test brackets 3 fixedly mounted on the top of the fixed support 104.

[0030] The detection seat 2 also includes: four connecting pillars 201, which are integrally arranged in a cross shape on the outside of the detection seat 2; a transmission ring 202, which is fixedly installed at the bottom of the detection seat 2; transmission teeth 203, which are formed inside the transmission ring 202 and mesh with gear 103; a fixing screw 204, which is connected to one end of the connecting pillar 201 via a screw; two limiting pillars 205, which slide symmetrically at one end of the connecting pillar 201; a fixed slide 206, which slides on the top of the detection seat 2; and a connecting side seat 207, which is fixedly installed at the rear end of the fixed slide 206. The rear end of the side seat 207 is rotatably connected to one end of the fixing screw 204; the rear ends of the side seat 207 are fixedly connected to one end of the limiting post 205 on both sides; there are two fixing slots 208, which are rectangular grooves symmetrically arranged at the upper and lower ends of the fixing slide 206; there are two detection sliders 209, which slide symmetrically inside the fixing slide 206; springs are installed between the fixing slide 206 and the detection sliders 209; there are two limiting heads 210, which are symmetrically and integrally arranged at the bottom rear end of the detection sliders 209; and there are threaded holes 211. The fixed holes 211 are set to two in a symmetrical manner on both sides of the fixed slide 206; the clamping block 212 has a fixed tooth on one side and is fixedly installed on the front end of the fixed slide 206; the fixed frame 213 is set to two in a symmetrical manner on both sides of the rear end of the clamping block 212; the limit plug 214 is rectangular in shape and is set to two in a symmetrical manner in the middle of the rear end of the clamping block 212; the limit plug 214 matches the fixed slot 208; the fixed frame 213 and the fixed hole 211 are fixedly connected by a fixing screw.

[0031] The detection bracket 3 also includes: an adjusting cylinder 301, which is fixedly installed on the top of the detection bracket 3; an adjusting bracket 302, which is fixedly installed on one end of the piston rod of the adjusting cylinder 301; two loading arms 303, one of which is fixedly installed longitudinally on one end of the adjusting bracket 302, and the other is fixedly installed laterally on the other end of the adjusting bracket 302; a friction seat 304, which is fixedly installed on one end of the loading arm 303; and a friction plate 305, which is fixedly installed on one end of the friction seat 304.

[0032] The limiting housing 4 also includes: a limiting slider 401, which slides in the middle of the limiting housing 4; a limiting screw 402, which rotates at the bottom of the limiting slider 401; and a threaded connection between the limiting screw 402 and the limiting housing 4.

[0033] This invention discloses a testing method for a fatigue life testing device for the friction surface of a wind turbine bearing yaw gear ring, comprising the following steps: 1) By placing the yaw gear ring of the wind turbine bearing on the top of the test seat 2, and then rotating the fixing screw 204, the fixing screw 204 will drive the fixing slide 206 to move, and the clamping block 212 on one side of the fixing slide 206 will contact the gear ring, thereby fixing and clamping the gear ring. 2) After the clamping block 212 has finished fixing the gear ring, the limiting screw 402 can be rotated. The limiting screw 402 will drive the limiting slider 401 to move upward, so that the top of the limiting slider 401 contacts the side of the fixing screw 204. 3) By activating the adjusting cylinder 301, the adjusting cylinder 301 will drive the friction plate 305 to move through the adjusting bracket 302, so that the friction plate 305 contacts the gear ring; 4) By starting the detection motor 102, the detection motor 102 will drive the detection seat 2 to rotate through the cooperation between the gear 103 and the transmission gear 203, so that its gear ring rotates and rubs against the friction plate 305 to perform fatigue life detection of the friction surface.

[0034] The specific usage and function of this embodiment are as follows: In the process of using the testing device, the yaw gear ring of the wind turbine bearing is placed on the top of the testing seat 2, and then the fixing screw 204 is rotated. The fixing screw 204 will drive the fixing slide 206 to move, and the clamping block 212 on one side of the fixing slide 206 will contact the gear ring, thereby fixing and clamping the gear ring. At this time, the adjusting cylinder 301 is started, and the adjusting cylinder 301 will drive the friction plate 305 to move through the adjusting bracket 302, so that the friction plate 305 contacts the gear ring. Then, the testing motor 102 is started, and the testing motor 102 will drive the testing seat 2 to rotate through the cooperation between the gear 103 and the transmission gear 203, so that the gear ring rotates and rubs against the friction plate 305 to perform fatigue life testing of the friction surface.

[0035] When testing different gear rings, the fixing screws between the fixing bracket 213 and the fixing hole 211 can be removed, allowing the clamping block 212 to detach from the fixing slide 206 for replacement. When the clamping block 212 detaches from the fixing slide 206, the limit plug 214 at the rear end of the clamping block 212 will disengage from the fixing slot 208, and the limit plug 214 will disengage from the detection slider 209. The detection slider 209 will then move forward under the action of the spring, which will cause the limiting head 210 to move. When the clamping block 212 of the corresponding specification is installed, the limiting plug 214 of the clamping block 212 can be inserted into the fixing slot 208. The limiting plug 214 will trigger the detection slider 209 to move backward. The detection slider 209 will drive the limiting head 210 to disengage from the fixing hole 211, thus indicating that the installation position of the clamping block 212 is accurate and the fixing screw can be fixed to the clamping block 212 through the fixing hole 211, thereby enabling the fixing mechanism of the device to have good installation and testing capabilities.

[0036] Once the clamping block 212 has fixed the gear ring, the limiting screw 402 can be rotated. The limiting screw 402 will drive the limiting slider 401 to move upward, so that the top of the limiting slider 401 contacts the side of the fixing screw 204. This will prevent the fixing screw 204 from rotating and causing the clamping block 212 to loosen its grip on the gear ring.

Claims

1. A kind of wind power bearing yaw gear friction surface fatigue life detection device, it is characterized in that, Include: Support base (1), the top of support base (1) rotates detection seat (2);The top of detection seat (2) is fixedly installed with four detection supports (3);Detection seat (2) is installed with four limit housings (4) outside;The support base (1) further includes: support column (101), the number of support column (101) is set to six, and the support column (101) is fixedly installed in the bottom of support base (1) in the form of annular array;Detection motor (102) is fixedly installed in the bottom of support base (1); The detection seat (2) further includes: fixed sliding seat (206), fixed sliding seat (206) is slid in the top of detection seat (2);The connecting side seat (207) is fixedly installed at the rear end of fixed sliding seat (206);The shape of fixed slot (208) is rectangular slot structure, and the number of fixed slot (208) is set to two, and the fixed slot (208) is symmetrically arranged on the upper and lower ends of fixed sliding seat (206);The number of detection sliding block (209) is set to two, and the detection sliding block (209) is symmetrically slid in the fixed sliding seat (206);Spring is installed between fixed sliding seat (206) and detection sliding block (209);The number of limit head (210) is set to two, and the limit head (210) is symmetrically arranged in the bottom of detection sliding block (209);Fixed hole (211) is a threaded hole, and the number of fixed hole (211) is set to two, and the fixed hole (211) is symmetrically arranged on both sides of fixed sliding seat (206).

2. The device for detecting fatigue life of a friction surface of a yaw gear ring of a wind power bearing according to claim 1, characterized in that: The support base (1) further includes: gear (103), gear (103) is fixedly installed on the top of the rotating shaft of detection motor (102);Fixed support (104) is fixedly installed on the top of support base (1) in the middle;Detection support (3) is fixed to the top of fixed support (104).

3. The device for detecting fatigue life of a friction surface of a yaw gear ring of a wind power bearing according to claim 1, characterized in that: The detection seat (2) further includes: connecting column (201), the number of connecting column (201) is set to four, and the connecting column (201) is integrally arranged outside the detection seat (2) in the form of cross.

4. The device for detecting fatigue life of a friction surface of a yaw gear ring of a wind power bearing according to claim 3, characterized in that: The detection seat (2) further includes: transmission ring (202), transmission ring (202) is fixedly installed on the bottom of detection seat (2);Transmission teeth (203) are arranged on the inner side of transmission ring (202);Transmission teeth (203) are engaged with gear (103).

5. The device for detecting fatigue life of a friction surface of a yaw gear ring of a wind power bearing according to claim 1, characterized in that: The detection seat (2) further includes: fixed screw rod (204), fixed screw rod (204) is rotatably connected to one end of connecting column (201) through screw rod;The rear end of connecting side seat (207) is rotatably connected with one end of fixed screw rod (204);The number of limit column (205) is set to two, and the limit column (205) is symmetrically slid in one end of connecting column (201);The rear end of connecting side seat (207) is fixedly connected with one end of limit column (205).

6. The wind power bearing yaw gear friction surface fatigue life detection device according to claim 5, characterized in that: The detection seat (2) further comprises: a clamping block (212) provided with fixed clamping teeth on one side, and the clamping block (212) is fixedly installed at the front end of the fixed sliding seat (206); two fixed frames (213) are symmetrically and integrally arranged at the rear end of the clamping block (212); two limit plugs (214) are symmetrically and integrally arranged at the middle of the rear end of the clamping block (212); the limit plug (214) is in line with the fixed slot (208); and the fixed frame (213) and the fixed hole (211) are fixedly connected through a fixed screw.

7. The device for detecting fatigue life of a friction surface of a yaw gear ring of a wind power bearing according to claim 1, characterized in that: The detection support (3) further comprises: an adjusting air cylinder (301) fixedly installed at the top of the detection support (3); an adjusting support (302) fixedly installed at one end of the piston rod of the adjusting air cylinder (301); two loading arms (303), one of which is fixedly installed at one end of the adjusting support (302) in a longitudinal state, and the other of which is fixedly installed at the other end of the adjusting support (302) in a transverse state; a friction seat (304) fixedly installed at one end of the loading arm (303); and a friction plate (305) fixedly installed at one end of the friction seat (304).

8. The device for detecting fatigue life of a friction surface of a yaw gear ring of a wind power bearing according to claim 1, characterized in that: The limiting shell (4) further comprises: a limiting sliding block (401) sliding in the middle of the limiting shell (4); and a limiting screw (402) rotating at the bottom of the limiting sliding block (401), and the limiting screw (402) is in threaded connection with the limiting shell (4).

9. The detection method of the wind power bearing yaw gear friction surface fatigue life detection device according to any one of claims 1-8, characterized in that: The method comprises the following steps: 1) Place the yaw gear ring of the wind power bearing on the top of the detection seat (2), and then rotate the fixed screw (204), so that the fixed sliding seat (206) moves, and the clamping block (212) on one side of the fixed sliding seat (206) contacts the gear ring, thereby fixing and clamping the gear ring; 2) After the clamping block (212) fixes the gear ring, rotate the limiting screw (402), so that the limiting sliding block (401) moves upward, and the top of the limiting sliding block (401) contacts the side of the fixed screw (204); 3) Start the adjusting air cylinder (301), so that the adjusting air cylinder (301) drives the friction plate (305) to move through the adjusting support (302), and the friction plate (305) contacts the gear ring; 4) Start the detection motor (102), so that the detection motor (102) drives the detection seat (2) to rotate through the cooperation between the gear (103) and the transmission teeth (203), so that the gear ring rotates and rubs with the friction plate (305) to detect the friction surface fatigue life.

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