Scrap removing device for yaw brake disc of wind turbine generator

Abstract

The utility model discloses a scrap removing device for a yaw brake disc of a wind turbine generator. A generator set frequently yaws during operation, a brake pad in a yawing clamp generates a large number of scrap iron chips due to abrasion in the yawing process, the scrap iron chips are attached to the surface of a brake disc, and when yawing is carried out again, the abnormal friction phenomenon is generated. The device comprises an X-shaped platform, brush plates are fixed to the front side and the rear side of the bottom face of the X-shaped platform respectively, driven shafts are connected to the front clamping opening and the rear clamping opening of the X-shaped platform through bearings respectively, cylindrical magnetic rods are fixed to the driven shafts, and a driving device used for driving the driven shafts to rotate is connected to the X-shaped platform. And magnet plates are respectively fixed on the side walls of a front clamping opening and a rear clamping opening of the X-shaped platform. The scrap removing device is used for removing scraps of the yaw brake disc of the wind turbine generator.

Description

Technical Field

[0001] The utility model relates to a chip removing device for a yaw brake disc of a wind turbine generator set. Background Art

[0002] Currently, the yaw systems of large wind turbines mostly consist of an electromechanical drive mechanism and a hydraulic brake and damping system. The hydraulic brake and damping system includes a hydraulic system and a yaw clamp. When the wind turbine is generating electricity directly into the wind, the hydraulic system forces the yaw clamp to fully brake, ensuring stable operation of the wind turbine facing the wind.

[0003] When the wind direction changes, the turbine starts yaw. This causes the hydraulic pressure to drop, reducing the damping between the brake pads and discs, ensuring stable yaw of the wind turbine. Therefore, the turbine frequently yaws during operation. During this process, the brake pads in the yaw clamps wear out, producing a large amount of scrap metal. This scrap metal adheres to the surface of the brake disc, causing abnormal friction when the turbine yaws again. Long-term abnormal friction can cause the surface of the brake disc to become rough, even scratching it and creating tiny dents. This can lead to a decrease in yaw braking performance, reducing the operational reliability of the wind turbine. Utility Model Content

[0004] The purpose of the utility model is to solve the above-mentioned problems and provide a chip removing device for the yaw brake disc of a wind turbine generator set.

[0005] The above purpose is achieved through the following technical solutions:

[0006] A wind turbine yaw brake disc chip removal device comprises an X-shaped platform, brush plates are fixed to the front and rear sides of the bottom surface of the X-shaped platform, a passive shaft is connected to the front and rear clamps of the X-shaped platform via bearings, a cylindrical magnetic rod is fixed to the passive shaft, and a driving device for driving the passive shaft to rotate is connected to the X-shaped platform;

[0007] The side walls of the front and rear clamping openings of the X-shaped platform are respectively fixed with magnet plates.

[0008] The wind turbine yaw brake disc chip removal device described above includes a driving gear and two transmission gears. The passive gear is fixed to the end of the passive shaft. The center of the X-shaped platform is connected to the driving shaft through a bearing. The driving gear is fixed to the end of the driving shaft. The driving gear is meshed with the transmission gear, and the transmission gear is meshed with the passive gear.

[0009] In the wind turbine yaw brake disc chip removal device, connecting plates are respectively fixed at the left and right clamping positions of the X-shaped platform, and the transmission shaft of the transmission gear passes through the connecting plates and is connected to the connecting plates through bearings.

[0010] In the yaw brake disc chip removal device for a wind turbine generator set, a rubber wheel is fixed on the driving shaft. Beneficial effects

[0011] 1. When the wind turbine generator set yaws, the chip removal device of the utility model will generate relative movement with the yaw brake disc, and can clean the iron chips on the surface of the yaw brake disc together through the brush plate, and then adsorb them through the cylindrical magnetic rod in the middle and the magnet plates on both sides, which not only ensures the cleanliness of the yaw brake disc surface and plays a good protective role for the yaw brake disc, but also can reduce the wear of the brake pad and extend the replacement cycle of the brake pad.

[0012] 2. The utility model is provided with a driving device. When yaw motion occurs, the rubber wheel contacts the yaw brake disc, causing the rubber wheel to rotate, driving the drive shaft to rotate, and finally driving the passive shaft to rotate through the transmission of the gear, so that the cylindrical magnetic rod can rotate, which can rotate and adsorb iron filings, preventing the adsorption effect of the magnets at the same position from being affected after being fully adsorbed, thereby increasing its cleaning cycle. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Attachment Figure 1 It is a top view of the utility model;

[0014] Attachment Figure 2 It is the main view of the utility model;

[0015] Attachment Figure 3 It is a side view of the utility model;

[0016] Attachment Figure 4 It is a bottom view of the utility model;

[0017] Attachment Figure 5 It is a structural diagram of the brush plate;

[0018] Attachment Figure 6 It is attached Figure 2 AA section view;

[0019] Attachment Figure 7 It is a top view of the utility model when in use;

[0020] Attachment Figure 8 This is the main view of the utility model when in use;

[0021] In the figure: 1. Magnet plate; 2. X-shaped platform; 3. Fixed head; 4. Cylindrical magnetic rod; 5. Support sleeve; 6. Passive gear; 7. Drive shaft; 8. Transmission shaft; 9. Transmission gear; 10. Active gear; 11. Rubber wheel; 12. Limit sleeve; 13. Brush plate; 14. Yaw brake disc; 15. Cabin base; 16. Connecting plate; 17. Passive shaft; 31. T-shaped square rod; 32. Spring; 33. Fixed rod. DETAILED DESCRIPTION

[0022] Reference Figures 1-6 A wind turbine yaw brake disc chip removal device comprises an X-shaped platform 2, with brush plates 13 fixed to the front and rear sides of the bottom surface of the X-shaped platform, and the brush plates are symmetrically arranged on the front and rear sides of the X-shaped platform, so as to ensure the bidirectional yaw of the wind turbine and clean and collect iron chips on the yaw brake disc. The front and rear clamping portions of the X-shaped platform are respectively connected to a passive shaft 17 through bearings, a cylindrical magnetic rod 4 is fixed to the passive shaft, and a driving device for driving the passive shaft to rotate is connected to the X-shaped platform;

[0023] The side walls of the front and rear clamping openings of the X-shaped platform are respectively fixed with magnet plates 1.

[0024] The comprehensiveness of adsorption can be ensured by the joint adsorption of the cylindrical magnetic rod and the magnetic plate;

[0025] The described wind turbine yaw brake disc chip removal device, the described driving device includes a driving gear 10 and two transmission gears 9, support sleeves 5 are respectively fixed at the front and rear side clamps of the X-shaped platform, the passive shaft passes through the support sleeves and is connected to the support sleeves through bearings, the end of the described passive shaft is fixed with a passive gear 6, the center of the described X-shaped platform is connected to a driving shaft 7 through a bearing, the end of the described driving shaft is fixed with a driving gear, the described driving gear is meshed with the transmission gear, the left and right side clamps of the described X-shaped platform are respectively fixed with connecting plates 14, the transmission shaft 8 of the described transmission gear passes through the connecting plate and is connected to the connecting plate through a bearing, and the described transmission gear is meshed with the described passive gear.

[0026] In the yaw brake disc chip removal device for a wind turbine generator set, a rubber wheel 11 is fixed on the driving shaft.

[0027] Working principle: It is fixed to the cabin base 15 through a fixed head. A fixed head 3 is fixed on the top of the X-shaped platform. The fixed head includes a T-shaped square rod 31 and a fixed rod 33. The fixed rod is a hollow square rod fixed to the X-shaped platform. The T-shaped square rod is inserted into the fixed rod. A spring 32 is sleeved on the T-shaped square rod, and the upper end of the spring is fixed to the T-shaped square rod, and the lower end is fixed to the fixed rod. After the device is fixed to the bottom of the cabin base through the top of the fixed head, the device is pressed on the yaw brake disc. Its rubber wheel is pressed on the yaw brake disc and maintains a certain pressure under the action of the spring. When the wind turbine is yawed, the brush plate presses on the yaw brake disc 14. The iron filings are cleaned and collected. At the same time, the magnet plate and the cylindrical magnetic rod absorb the iron filings during the cleaning and collection process. At the same time, when yaw, the rubber wheel rotates to rotate the drive shaft. A driving gear is fixed to the end of the drive shaft. The driving gear is engaged with the transmission gear, and the transmission gear is engaged with the passive gear. The driving gear drives the transmission gear to rotate, and the transmission gear drives the passive gear to rotate, thereby realizing the rotation of the passive shaft, so that the cylindrical magnetic rod rotates and absorbs when yaw, preventing the adsorption of the magnet at the same position from affecting its adsorption effect after it is fully adsorbed, thereby increasing its cleaning cycle.

Claims

1. A wind turbine yaw brake disc chip removal device, characterized by: The invention comprises an X-shaped platform, wherein brush plates are fixed to the front and rear sides of the bottom surface of the X-shaped platform respectively, and a passive shaft is connected to the front and rear clamps of the X-shaped platform respectively through bearings, and a cylindrical magnetic rod is fixed to the passive shaft. A driving device for driving the passive shaft to rotate is connected to the X-shaped platform; The side walls of the front and rear clamping openings of the X-shaped platform are respectively fixed with magnet plates.

2. The wind turbine yaw brake disc chip removal device according to claim 1, characterized in that: The driving device includes a driving gear and two transmission gears. The passive gear is fixed to the end of the passive shaft. The center of the X-shaped platform is connected to the driving shaft through a bearing. The driving gear is fixed to the end of the driving shaft. The driving gear is meshed with the transmission gear, and the transmission gear is meshed with the passive gear.

3. The wind turbine yaw brake disc chip removal device according to claim 2, characterized in that: Connecting plates are fixed to the clamping openings on the left and right sides of the X-shaped platform respectively. The transmission shaft of the transmission gear passes through the connecting plates and is connected to the connecting plates through bearings.

4. The wind turbine yaw brake disc chip removal device according to claim 3, characterized in that: A rubber wheel is fixed on the driving shaft.

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