Automatic carbon powder cleaning device for yaw brake disc of wind generating set

Abstract

The utility model provides an automatic carbon powder cleaning device for a yaw brake disc of a wind generating set, which relates to the technical field of wind power yaw brake cleaning and comprises a brake disc, a collecting box and two scrapers. A double-face rack is inserted into the box wall of one side of the collecting box, two gears connected with the two tooth faces of the double-face rack in a meshed mode are symmetrically and rotationally connected to the box wall of one side of the collecting box, the two gears are driven to rotate reversely through ascending of the double-face rack, and then fixing bases connected with the gears and scraping plates rotate to be in an inclined state. And meanwhile, the gear rotates, the special-shaped rack in meshed connection drives the connecting frame to descend, namely, the scraping strip connected with the connecting frame descends and is separated from the side edge of the brake disc, abrasion of the scraping plate and the scraping strip is prevented, and the brake disc is protected.

Description

Technical Field

[0001] The utility model relates to the technical field of cleaning of wind power yaw brakes, in particular to an automatic cleaning device for carbon powder of a yaw brake disc of a wind power generator set. Background Art

[0002] The yaw brake of a wind turbine is a mechanical device. When the wind turbine is subjected to side winds or other abnormal conditions, the controller will issue a command to drive the motor to rotate the main body of the yaw brake to change the direction and speed of the wind wheel. When the yaw redundant pressure is large, the friction plate is unevenly stressed or the fitting clearance changes. The greater pressure during yaw will increase the wear and tear of the friction plate, and the fallen friction plate debris will adhere to the brake disc, and then as the brake disc rotates and passes through the friction plate, the brake disc will be damaged.

[0003] Therefore, a foreign matter cleaning device for the yaw brake disc of a wind turbine generator set in the prior art has a publication number of CN219220647U. When using the device, first align the arc groove inside the clamping block with the edge of the lower end of the brake disc, then adjust the height of the lifting rod inside the supporting leg, and fix it with fixing bolts so that the base fits the ground. At this time, the rubber roller is in close contact with the brake disc, and then the rubber roller contacts the rotating brake disc to drive the first rotating shaft inside the bearing and the first bevel gears at both ends to rotate, and then the rotation of the first bevel gear drives the second bevel gear to rotate the second rotating shaft inside the connecting block, so that the cleaning brush connected to the outside of the cleaning brush rotates to clean the foreign matter outside the brake disc, and the position of the second rotating shaft is limited by the fixing rod to avoid deformation caused by long-term use, and finally the foreign matter remaining on the surface of the brake disc is scraped off by the scraper and collected in the collection box:

[0004] However, the brake disc will rotate with the rotation of the wind turbine. Therefore, even if the surface of the brake disc is clean, the brake disc will rotate relative to the scraper and the cleaning brush. Because the scraper and the cleaning brush contact the brake disc, the friction generated during the rotation may cause the scraper and the cleaning brush to wear, leaving debris from the scraper and the cleaning brush on the brake disc, causing wear of the brake disc. Utility Model Content

[0005] The utility model aims to solve the problems existing in the prior art and proposes an automatic cleaning device for carbon powder of a yaw brake disc of a wind turbine generator set.

[0006] In order to achieve the above-mentioned purpose, the utility model adopts the following technical scheme: an automatic cleaning device for carbon powder of yaw brake disc of wind turbine generator set, comprising a brake disc, a collection box and two scrapers, a double-sided rack is inserted into the box wall on one side of the collection box, and the box wall on one side of the collection box is symmetrically rotatably connected to two gears respectively meshing with the two tooth surfaces of the double-sided rack, the gear tooth surface is fixedly connected to a fixed seat, the two scrapers are respectively installed on the two fixed seats, a scraper strip for cleaning the side of the brake disc is arranged above the double-sided rack, the side of the scraper strip close to the scraper is fixedly connected to a connecting frame which is gap-matched with the side of the scraper, and the side of the connecting frame away from the double-sided rack is fixedly connected to a special-shaped rack meshing with the gear at the adjacent position.

[0007] Preferably, extension blocks are fixedly connected to the top edges of both sides of the double-sided rack, and a guide column slidably connected to the side of the extension block is fixedly connected to the box wall on one side of the collection box, and an electric push rod is fixedly connected between the extension block and the box wall on one side of the collection box.

[0008] Preferably, a portion of the special-shaped rack is an L-shaped setting connected to the connection frame, and the other portion is a straight plate-shaped setting meshing with the gear.

[0009] Preferably, a portion of the special-shaped rack is penetrated by a limiting column connected to a box wall on one side of the collection box.

[0010] Preferably, a protrusion is fixedly connected to one side of the opposite end surface of the fixing seat and the scraper, and a torque sensor is arranged between the two protrusions.

[0011] Preferably, a plug-in is inserted between the two protrusions, one side of the plug-in is embedded and inserted in the fixing seat, and the fixing seat is fixedly connected with an electric telescopic rod for driving the plug-in to slide.

[0012] Compared with the prior art, the advantages and positive effects of the utility model are:

[0013] 1. In the utility model, the double-sided rack is raised to drive the two gears to rotate in the opposite direction, thereby realizing that the fixed seat connected to the gear and the scraper are rotated to an inclined state, that is, the scraper is separated from the end face of the brake disc. At the same time, the gear rotates to realize that the meshing special-shaped rack drives the connecting frame to descend, that is, the scraper connected to the connecting frame is lowered and separated from the side of the brake disc, thereby preventing the scraper and the scraper from being worn and protecting the brake disc.

[0014] 2. In the utility model, the electric telescopic rod is retracted to realize the plug-in being separated from the protrusion on the scraper, and the fixed state of the relative position of the scraper and the fixing seat is released. When there are impurities on the end surface of the brake disc, the impurities on the end surface of the brake disc will push the scraper to swing, and the swing of the scraper will drive the torque sensor to generate a reading, which makes it easy for personnel to judge whether there are attachments on the end surface of the brake disc, thereby realizing the effective use of the scraper and the scraper strip. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 The utility model provides a three-dimensional structural schematic diagram of a carbon powder automatic cleaning device for the yaw brake disc of a wind turbine generator set;

[0016] Figure 2 The utility model proposes an automatic cleaning device for carbon powder of yaw brake disc of wind turbine generator set Figure 1 A schematic cross-sectional structure diagram of;

[0017] Figure 3 The utility model proposes an automatic cleaning device for carbon powder of yaw brake disc of wind turbine generator set Figure 2 A schematic cross-sectional structure diagram of;

[0018] Figure 4 for Figure 3 Enlarged view of point A in the middle.

[0019] Legend: 1. Brake disc; 2. Collection box; 3. Scraper; 4. Electric push rod; 5. Guide column; 6. Extension block; 7. Gear; 8. Limit column; 9. Connecting frame; 10. Special-shaped rack; 11. Scraper strip; 12. Fixed seat; 13. Electric telescopic rod; 14. Plug-in; 15. Bump; 16. Torque sensor; 17. Double-sided rack. DETAILED DESCRIPTION

[0020] In order to more clearly understand the above-mentioned purpose, features and advantages of the utility model, the utility model is further described below in conjunction with the accompanying drawings and embodiments. It should be noted that the embodiments of the present application and the features in the embodiments can be combined with each other without conflict.

[0021] In the following description, many specific details are set forth to facilitate a full understanding of the present invention. However, the present invention may also be implemented in other ways than those described herein. Therefore, the present invention is not limited to the specific embodiments of the following disclosure.

[0022] like Figure 1-4As shown, an automatic cleaning device for carbon powder of a yaw brake disc of a wind turbine generator set includes a brake disc 1, a collecting box 2 and two scrapers 3. A double-sided rack 17 is inserted into the box wall on one side of the collecting box 2, and the box wall on one side of the collecting box 2 is symmetrically rotatably connected to two gears 7 that are respectively meshed with the two tooth surfaces of the double-sided rack 17. Therefore, as shown in the figure, when the double-sided rack 17 rises, it will drive the two gears 7 to rotate in the opposite direction. Extension blocks 6 are fixedly connected to the top edges of both sides of the double-sided rack 17, and a guide column 5 slidably connected to the side edge of the extension block 6 is fixedly connected to the box wall on one side of the collecting box 2. The extension block 6 is T-shaped, and the corresponding guide column 5 has an L-shaped cross-section. Moreover, one extension block 6 is configured with two guide columns 5, and the extension block 6 and the collecting box 2 are connected to each other in a slidable manner. An electric push rod 4 is fixedly connected between the box wall on one side of the collecting box 2. Therefore, the electric push rod 4 is extended and retracted to realize that the double-sided rack 17 slides in the direction perpendicular to the box wall on one side of the collecting box 2 under the limiting effect of the guide column 5 on the extension block 6, so that the two gears 7 can be turned and adjusted. The tooth surface of the gear 7 is fixedly connected with a fixed seat 12, and the two scrapers 3 are respectively installed on the two fixed seats 12. The state shown in the figure is that the two scrapers 3 are attached to the end face of the brake disc 1 to achieve the cleaning of the end face of the brake disc 1. After the cleaning is completed, the fixed seat 12 drives the gear 7 to rotate as the double-sided rack 17 rises, so that the fixed seat 12 is away from the end face of the brake disc 1, thereby ensuring that the brake disc 1 will not cause surface wear of the scraper 3 when it rotates normally:

[0023] In addition, in order to facilitate cleaning the side of the brake disc 1: a scraper strip 11 for cleaning the side of the brake disc 1 is arranged above the double-sided rack 17, and the scraper strip 11 is fixedly connected to a connection frame 9 that matches the clearance of the side of the scraper 3 near the side of the scraper 3, and the connection frame 9 is fixedly connected to a special-shaped rack 10 that meshes with the gear 7 at the adjacent position on the side away from the double-sided rack 17. A part of the special-shaped rack 10 is an L-shaped setting connected to the connection frame 9, and the other part is a straight plate setting that meshes with the gear 7. A part of the special-shaped rack 10 is penetrated by a collecting The limiting column 8 connected to the box wall on one side of the box 2 can only slide along the direction parallel to the double-sided rack 17 under the limiting support of the limiting column 8. Therefore, when the double-sided rack 17 rises to realize the rotation of the gear 7, and drives the fixed seat 12 and the scraper 3 to separate from the end surface of the brake disc 1, the gear 7 passively rotates as the double-sided rack 17 rises, thereby realizing that the meshing special-shaped rack 10 drives the connection frame 9 to descend, that is, the scraper strip 11 connected to the connection frame 9 is lowered and separated from the side of the brake disc 1, preventing the scraper strip 11 from being worn:

[0024] Further discussion, a protrusion 15 is fixedly connected to one side of the opposite end surface of the fixed seat 12 and the scraper 3, a torque sensor 16 is arranged between the two protrusions 15, and the measuring end of the torque sensor 16 can be connected to the bottom surface of the scraper 3. The body is fixed on the fixed seat 12 and is used to measure whether there is debris on the surface of the brake disc 1. The specific scheme is: a plug-in 14 is inserted between the two protrusions 15, one side of the plug-in 14 is embedded and inserted in the fixed seat 12, and the fixed seat 12 is fixedly connected with an electric telescopic rod 13 for driving the plug-in 14 to slide, and the electric telescopic rod 13 is used to drive the plug-in 14 to slide. The retracting rod 13 contracts to enable the plug-in 14 to detach from the protrusion 15 on the scraper 3, and release the fixed state of the relative position of the scraper 3 and the fixing seat 12. When there are impurities on the end surface of the brake disc 1, the impurities on the end surface of the brake disc 1 will push the scraper 3 to swing, and the swing of the scraper 3 will drive the torque sensor 16 to generate a reading, which is convenient for personnel to judge. When using the scraper 3 to clean the debris on the end surface of the brake disc 1, the plug-in 14 only needs to rise and reset to re-penetrate the protrusion 15 on the scraper 3, so as to prevent the scraper 3 from rotating, thereby enabling the scraper 3 to clean the attachments on the end surface of the brake disc 1.

[0025] Working principle: when the torque sensor 16 detects that the end face of the brake disc 1 contains attachments, the electric push rod 4 contracts to realize the extension block 6 to drive the double-sided rack 17 to descend, and then the two gears 7 rotate in the opposite direction, driving the fixed seat 12 and the scraper 3 to rotate to a vertical state and fit the end face of the brake disc 1, and the gear 7 rotates while driving the special-shaped rack 10 to rise, and then the connecting frame 9 drives the scraper 11 to rise to fit the side of the brake disc 1, so as to clean the attachments on the surface of the brake disc 1. After cleaning, the double-sided rack 17 rises, and then the two gears 7 rotate in the opposite direction, driving the fixed seat 12 and the scraper 3 to rotate to an inclined state and disengage from the end face of the brake disc 1, and the gear 7 rotates while driving the special-shaped rack 10 to descend, and then the connecting frame 9 drives the scraper 11 to descend to disengage from the side of the brake disc 1.

[0026] The wiring diagram of the electric push rod 4 and the electric telescopic rod 13 in the present invention belongs to the common knowledge in the field, and its working principle is a well-known technology. The model is selected according to the actual use. Therefore, the control method and wiring arrangement of the electric push rod 4 and the electric telescopic rod 13 are not explained in detail.

[0027] The above description is only a preferred embodiment of the present invention and does not limit the present invention in other forms. Any technician familiar with the profession may use the technical content disclosed above to change or modify it into an equivalent embodiment with equivalent changes and apply it to other fields. However, any simple modification, equivalent change and modification made to the above embodiment based on the technical essence of the present invention without departing from the content of the technical solution of the present invention still falls within the protection scope of the technical solution of the present invention.

Claims

1. An automatic cleaning device for carbon powder of a yaw brake disc of a wind turbine generator set, comprising a brake disc (1), a collection box (2) and two scrapers (3), characterized in that: A double-sided rack (17) is inserted into the wall of one side of the collection box (2), and two gears (7) are symmetrically rotatably connected to the wall of one side of the collection box (2) and are respectively meshed with the two tooth surfaces of the double-sided rack (17); the tooth surfaces of the gears (7) are fixedly connected to a fixed seat (12); the two scrapers (3) are respectively mounted on the two fixed seats (12); a scraper strip (11) for cleaning the side of the brake disc (1) is arranged above the double-sided rack (17); the scraper strip (11) is fixedly connected to a connection frame (9) that is clearance-matched with the side of the scraper (3) on the side close to the scraper (3); and the connection frame (9) is fixedly connected to a special-shaped rack (10) that is meshed with the gear (7) at an adjacent position on the side away from the double-sided rack (17).

2. The automatic carbon powder cleaning device for the yaw brake disc of a wind turbine generator set according to claim 1 is characterized in that: The top edges of both sides of the double-sided rack (17) are fixedly connected to extension blocks (6), and a box wall on one side of the collection box (2) is fixedly connected to a guide column (5) that is slidably connected to the side of the extension block (6), and an electric push rod (4) is fixedly connected between the extension block (6) and the box wall on one side of the collection box (2).

3. The automatic carbon powder cleaning device for the yaw brake disc of a wind turbine generator set according to claim 1 is characterized in that: A portion of the special-shaped rack (10) is an L-shaped arrangement connected to the connection frame (9), and another portion is a straight plate-shaped arrangement meshingly connected to the gear (7).

4. The automatic carbon powder cleaning device for the yaw brake disc of a wind turbine generator set according to claim 3 is characterized in that: A portion of the special-shaped rack (10) is penetrated by a limiting column (8) connected to a box wall on one side of the collection box (2).

5. The automatic carbon powder cleaning device for the yaw brake disc of a wind turbine generator set according to claim 1 is characterized in that: A convex block (15) is fixedly connected to one side of the opposite end surface of the fixed seat (12) and the scraper (3), and a torque sensor (16) is arranged between the two convex blocks (15).

6. The automatic carbon powder cleaning device for the yaw brake disc of a wind turbine generator set according to claim 5 is characterized in that: A plug-in unit (14) is inserted between the two protrusions (15); one side of the plug-in unit (14) is embedded in the fixed seat (12); and the fixed seat (12) is fixedly connected with an electric telescopic rod (13) for driving the plug-in unit (14) to slide.

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