Automatic ash removal device for yaw brake disc

Abstract

The utility model provides a yaw brake disc automatic dust removing device which comprises a cleaning brush and a dust receiving box, and the cleaning brush and the dust receiving box are fixed through a connecting rod; the cleaning brush is used for being arranged above the yaw brake disc and abutting against the upper surface of the yaw brake disc. Hooks are arranged on the two sides, close to the yaw brake, of the ash receiving box and used for being connected with hanging rings arranged on the side, close to the ash receiving box, of the yaw brake. And the cleaning brush is Y-shaped. According to the yaw brake disc cleaning device, the Y-shaped cleaning brush is designed to clean the upper surface of the yaw brake disc, cleaned slag ash is swept into the ash receiving box, and the cleaning process is not limited by the rotating direction; meanwhile, the automatic ash removal device for the yaw brake disc is fixed between the two yaw brakes, ash is automatically removed when the yaw brakes and the yaw brake disc generate relative displacement, manual operation of workers is replaced, the ash removal efficiency is effectively improved, and the labor intensity of workers is reduced. And abnormal sound and brake disc abrasion caused by excessive accumulated slag ash on the yaw brake disc during fan yaw are prevented.

Description

Technical Field

[0001] The present application relates to the field of wind turbines, and in particular to an automatic dust cleaning device for a yaw brake disc. Background Art

[0002] Wind turbines, usually referred to as wind turbines, are devices that convert wind energy into electrical energy. They consist of wind turbines, converters, transformers, etc. Wind turbines usually use windmill blades to drive the rotor to rotate, which in turn drives the generator rotor to rotate and generate electricity. The converter converts the alternating current generated by the generator into electrical energy suitable for transmission to the power grid, and the transformer is used to increase the voltage output by the generator to meet the transmission requirements of the power grid. The yaw brake disc is a component in the wind turbine, which is used to control the steering system of the wind turbine. The yaw system can help the wind turbine align the direction of the wind when the wind direction changes, so that the windmill blades are always facing the wind direction, thereby improving the power generation efficiency of the wind turbine. The yaw brake disc is usually installed on the rotating head of the wind turbine, and the operation of the yaw brake disc is controlled by the brake. When the wind turbine needs to be shut down or maintained, the yaw brake disc will be activated, and the rotating head will be braked by the brake to stop the windmill blades from rotating, ensuring safe shutdown and maintenance operations. This can effectively protect the safety of the wind turbine and the surrounding environment.

[0003] It is very important to clean the brake disc. A clean brake disc can improve the braking performance and extend the service life of the brake system. Cleaning the yaw brake disc is slightly different from cleaning ordinary brake discs, because yaw brake discs are usually installed on equipment such as wind turbines and require special cleaning methods. The existing cleaning method is to manually enter a small space to clean the side of the brake disc. The cleaning process requires yaw 360 degrees, which is time-consuming and laborious. In a relatively small working space, the cleaning time is relatively long. When cleaning, personnel need to use machine cloths to pick up dust, which can easily inhale dust and cause breathing difficulties for the operators. When cleaning the brake disc dust, personnel need to clean back and forth, which can easily spill the dust on the yaw platform, affecting subsequent work and greatly reducing the efficiency of sanitation and cleaning work. Utility Model Content

[0004] In view of this, the present application provides an automatic cleaning device for a yaw brake disc, which is used to solve the problems of long cleaning operation time, low work efficiency and long-term impact on personnel's health, so as to improve the cleaning efficiency.

[0005] To achieve the above purpose, the present application provides an automatic dust cleaning device for a yaw brake disc, which adopts the following technical solutions:

[0006] The present application provides an automatic dust cleaning device for a yaw brake disc, comprising:

[0007] A cleaning brush and an ash receiving box, wherein the cleaning brush is arranged above the ash receiving box, and the cleaning brush and the ash receiving box are fixed by a connecting rod;

[0008] The cleaning brush is used to be arranged above the yaw brake disc and abut against the upper surface of the yaw brake disc, and the ash receiving box is used to be arranged on the axial side of the yaw brake disc;

[0009] The ash receiving box is provided with hooks on both sides close to the yaw brake, and the hooks are used to connect with the hanging rings provided on one side of the yaw brake close to the ash receiving box;

[0010] The cleaning brush comprises a first cleaning rod and a second cleaning rod. The first cleaning rod and the second cleaning rod are connected in a Y shape, and the connection is fixed to the upper end of the connecting rod by bolts.

[0011] Optionally, a magnet is provided on a side of the connecting rod close to the yaw brake disc, and the connecting rod is adsorbed on the axial side of the yaw brake disc through the magnet.

[0012] Optionally, a brush is provided between the first cleaning rod, the second cleaning rod and the yaw brake disc, and the brush is detachably connected to the first cleaning rod and the second cleaning rod.

[0013] Optionally, the first cleaning rod and the second cleaning rod are respectively provided with a slide groove, the upper part of the brush is a slider and the lower part is bristles, and the brush and the first cleaning rod and the second cleaning rod are fixed by inserting the slider into the slide groove.

[0014] Optionally, the brush is an electrostatic brush.

[0015] Optionally, a cover plate is respectively provided at one end of the first cleaning rod and the second cleaning rod away from the connection point, and the cover plate is movably connected to the first cleaning rod and the second cleaning rod through a hinge.

[0016] Optionally, the dust collecting box includes a dust collecting box and a fixing box, the dust collecting box is arranged in the fixing box, and the lower end of the connecting rod is fixed to the top end of the side wall of the fixing box close to the yaw brake disc.

[0017] Optionally, two insert rings are provided on the top of the side wall of the dust box, a handle is provided between the insert rings, both ends of the handle are inserted into the insert rings, and the end of the handle is rotatably connected to the insert rings.

[0018] Optionally, a spring is provided between the hook and the ash receiving box.

[0019] Optionally, the surfaces of the first cleaning rod, the second cleaning rod and the ash receiving box are provided with an antistatic coating.

[0020] The present application provides an automatic dust cleaning device for a yaw brake disc, comprising: a cleaning brush and an ash receiving box, wherein the cleaning brush is arranged above the ash receiving box, and the cleaning brush and the ash receiving box are fixed by a connecting rod; the cleaning brush is used to be arranged above the yaw brake disc and abut against the upper surface of the yaw brake disc, and the ash receiving box is used to be arranged on the axial side of the yaw brake disc; hooks are arranged on both sides of the ash receiving box close to the yaw brake, and the hooks are used to connect with the hanging rings arranged on one side of the yaw brake close to the ash receiving box; the cleaning brush comprises a first cleaning rod and a second cleaning rod, and the first cleaning rod and the second cleaning rod are connected in a Y shape, and the connection is fixed to the upper end of the connecting rod by bolts. By arranging the automatic dust cleaning device for the yaw brake disc between the two yaw brakes and connecting the yaw brakes by a hook, the upper surface of the yaw brake disc is cleaned by the cleaning brush with a Y-shaped design, and the cleaned residue dust is swept into the ash receiving box, and the staff does not need to manually remove dust, which effectively improves the dust cleaning efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] The drawings herein are incorporated into the specification and constitute a part of the specification, showing embodiments consistent with the present application and, together with the specification, are used to explain the principles of the present application. Obviously, the drawings described below are some embodiments of the present application, and for ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0022] Figure 1 A schematic diagram of the structure of the automatic dust cleaning device for the yaw brake disc provided in an embodiment of the present application;

[0023] Figure 2 A diagram showing the use status of the automatic dust cleaning device for the yaw brake disc provided in an embodiment of the present application;

[0024] Figure 3 A side view of the automatic dust cleaning device for the yaw brake disc provided in an embodiment of the present application;

[0025] Figure 4 A schematic diagram of the structure of a cleaning brush in an automatic dust cleaning device for a yaw brake disc provided in an embodiment of the present application.

[0026] Description of reference numerals:

[0027] 1-cleaning brush; 2-dust box; 21-first cleaning rod; 22-second cleaning rod; 3-connecting rod; 4-yaw brake disc; 5-hook; 6-yaw brake; 7-hanging ring; 8-magnet; 9-brush; 10-slide; 11-slider; 12-bristles; 13-cover; 14-dust box; 141-insert ring; 142-handle; 15-fixed box; 16-spring.

[0028] The above drawings have shown clear embodiments of the present application, which will be described in more detail later. These drawings and text descriptions are not intended to limit the scope of the present application in any way, but to illustrate the concept of the present application to those skilled in the art by referring to specific embodiments. DETAILED DESCRIPTION

[0029] Exemplary embodiments will be described in detail herein, examples of which are shown in the accompanying drawings. When the following description refers to the drawings, the same numbers in different drawings represent the same or similar elements unless otherwise indicated. The implementations described in the following exemplary embodiments do not represent all implementations consistent with the present application. Instead, they are merely examples of devices and methods consistent with some aspects of the present application as detailed in the appended claims.

[0030] Secondly, it should be noted that in the description of the present application, terms such as "inside" and "outside" indicating directions or positional relationships are based on the directions or positional relationships shown in the drawings. This is only for the convenience of description and does not indicate or imply that the device or component must have a specific orientation, be constructed and operated in a specific orientation. Therefore, it cannot be understood as a limitation on the present application.

[0031] In addition, it should be noted that in the description of this application, unless otherwise clearly specified and limited, the terms "connected" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For those skilled in the art, the specific meanings of the above terms in this application can be understood according to the specific circumstances.

[0032] Wind turbines, usually wind turbine generators, are devices that convert wind energy into electrical energy. They consist of wind turbines, converters, transformers, etc. Wind turbines usually use windmill blades to drive the rotor to rotate, which in turn drives the generator rotor to rotate and generate electrical energy. The converter converts the alternating current generated by the generator into electrical energy suitable for transmission to the power grid, and the transformer is used to increase the voltage output by the generator to meet the transmission requirements of the power grid.

[0033] The yaw brake disc usually refers to a component in a wind turbine that is used to control the steering system of the wind turbine. The yaw system is an important component in a wind turbine. It can help the wind turbine align the direction of the wind when the wind direction changes, so that the wind turbine blades always face the wind direction, thereby improving the power generation efficiency of the wind turbine.

[0034] The yaw brake disc is usually installed on the rotating head of the wind turbine, and the operation of the yaw brake disc is controlled by the brake. When the wind turbine needs to be shut down or maintained, the yaw brake disc will be activated, and the rotating head will be braked by the brake to stop the wind turbine blades from rotating, ensuring safe shutdown and maintenance operations. This can effectively protect the safety of the wind turbine and the surrounding environment.

[0035] The cleaning of the yaw brake disc is very important, because a clean yaw brake disc can improve the braking performance and extend the service life of the brake system. When cleaning the slag on the yaw brake disc of a wind turbine in a small space, the following problems may occur:

[0036] During each inspection, ensure that the yaw brake disc has stopped running. After it has completely cooled down, manually enter the side of the brake disc and use appropriate tools to clean it. When cleaning the yaw brake disc, be particularly careful to avoid damage to the wind turbine or other equipment. Cleaning requires yaw 360°, which is time-consuming and laborious.

[0037] Compared with the narrow working space, the cleaning time is longer. When cleaning, workers need to use machine cleaning cloth to pick up dust, which makes it easy for them to inhale slag and dust, causing breathing difficulties for the workers.

[0038] When personnel clean brake disc ash, they need to clean back and forth, which can easily spill the ash on the yaw platform, affecting subsequent work and greatly reducing the efficiency of sanitation and cleaning work.

[0039] Therefore, the inventor proposes an automatic cleaning device for a yaw brake disc to solve the problems of long cleaning operation time, low work efficiency and long-term impact on personnel's health, so as to improve the cleaning efficiency.

[0040] The present application is described in detail below with reference to the accompanying drawings and specific embodiments:

[0041] Figure 1 A schematic diagram of the structure of the automatic dust cleaning device for the yaw brake disc provided in an embodiment of the present application; Figure 2 A diagram showing the use status of the automatic dust cleaning device for the yaw brake disc provided in an embodiment of the present application; Figure 3 A side view of the automatic dust cleaning device for the yaw brake disc provided in an embodiment of the present application; Figure 4 A schematic diagram of the structure of a cleaning brush in an automatic dust cleaning device for a yaw brake disc provided in an embodiment of the present application.

[0042] Reference Figures 1 to 4 As shown, an automatic dust cleaning device for a yaw brake disc provided in an embodiment of the present application includes: a cleaning brush 1 and an dust collecting box 2, wherein the cleaning brush 1 is arranged above the dust collecting box 2, and the cleaning brush 1 and the dust collecting box 2 are fixed by a connecting rod 3.

[0043] The cleaning brush 1 is used to be arranged above the yaw brake disc 4 and abut against the upper surface of the yaw brake disc 4 , and the ash receiving box 2 is used to be arranged on the axial side of the yaw brake disc 4 .

[0044] Specifically, the cleaning brush 1 is used to clean the dust on the upper surface of the yaw brake disc 4. When the yaw brake disc 4 rotates relative to the cleaning brush 1, the cleaning brush 1 sweeps the dust to the dust box 2. The cleaning brush 1 is used to ensure that the surface of the yaw brake disc 4 is clean and free of debris, thereby improving the braking effect. When the wind turbine is running, if dust, soil or other debris accumulates on the surface of the yaw brake disc 4, it will affect the friction effect of the yaw brake disc 4, resulting in a decrease in braking performance.

[0045] Hooks 5 are provided on both sides of the ash receiving box 2 close to the yaw brake 6 , and the hooks 5 are used to connect with a hanging ring 7 provided on one side of the yaw brake 6 close to the ash receiving box 2 .

[0046] Specifically, a plurality of yaw brakes 6 are arranged on the yaw brake disc 4, and the automatic dust cleaning device of the yaw brake disc 4 is arranged between two yaw brakes 6, and a hanging ring 7 is arranged on the side of the yaw brake 6 close to the ash receiving box 2, and the automatic dust cleaning device of the yaw brake disc 4 is connected to the yaw brake 6 through the hook 5 and the hanging ring 7, so that it is arranged close to the inner shaft side of the yaw brake disc 4. The method of fixing with the hook 5 is simple and convenient to operate, and the objects can be quickly hung or unloaded, and the method of fixing the hook 5 and the hanging ring 7 is relatively fixed and reliable, not easy to fall off or loose, and has strong reliability.

[0047] The cleaning brush 1 comprises a first cleaning rod 21 and a second cleaning rod 22 . The first cleaning rod 21 and the second cleaning rod 22 are connected in a Y shape, and the connection is fixed to the upper end of the connecting rod 3 by bolts.

[0048] Specifically, the Y-shaped connection allows the cleaning brush 1 to work without being restricted by the rotation direction of the yaw brake disc 4, and as dust accumulates, the dust can fall into the dust box 2 below along the connection direction of the first cleaning rod 21 and the second cleaning rod 22. The Y-shaped brush is designed in a Y shape, and can clean in two directions at the same time during the cleaning process, with high cleaning efficiency and capable of covering a wider area.

[0049] The utility model provides an automatic dust cleaning device for the yaw brake disc 4, which cleans the upper surface of the yaw brake disc 4 through a cleaning brush 1, and sweeps the cleaned ash into an ash receiving box 2, without the need for manual dust removal by staff, thereby effectively improving the dust cleaning efficiency; it prevents excessive accumulation of ash on the yaw brake disc 4, which causes abnormal noise and brake disc wear when the fan is yawed.

[0050] In some embodiments, a magnet 8 is provided on a side of the connecting rod 3 close to the yaw brake disc 4 , and the connecting rod 3 is adsorbed on the axial side of the yaw brake disc 4 through the magnet 8 .

[0051] Specifically, when there is relative rotation between the automatic dust cleaning device of the yaw brake disc 4 and the yaw brake disc 4, the automatic dust cleaning device of the yaw brake disc 4 is adsorbed to one side of the yaw brake disc 4 through the adsorption effect of the magnet 8 to prevent it from falling off. At the same time, the adsorption of the magnet 8 maintains the stability of the dust cleaning device without affecting the relative rotation. The magnet 8 has a strong adsorption force and can quickly and easily connect and fix objects, avoiding cumbersome installation steps, saving time and labor costs. The connection method of the magnet 8 can reduce the use of parts and save space.

[0052] In some embodiments, a brush 9 is disposed between the first cleaning rod 21 , the second cleaning rod 22 and the yaw brake disc 4 , and the brush 9 is detachably connected to the first cleaning rod 21 and the second cleaning rod 22 .

[0053] Specifically, the brush 9 can effectively remove dirt, dust, bacteria and other impurities on the surface, making cleaning more thorough; and the brush 9 has bristles 12 of moderate hardness and softness, which can effectively remove dirt while not damaging the surface material during cleaning. At the same time, the brush 9 is easily replaced by providing a detachable structure.

[0054] In some embodiments, Figure 4 As shown, the first cleaning rod 21 and the second cleaning rod 22 are respectively provided with a slide groove 10, the upper part of the brush 9 is a slider 11, and the lower part is bristles 12, and the brush 9 and the first cleaning rod 21 and the second cleaning rod 22 are fixed by inserting the slider 11 into the slide groove 10.

[0055] Specifically, the detachable design means that when the brush 9 needs to be replaced, the connecting parts do not need to be replaced every time it is disassembled, saving materials and costs; and this method makes maintenance more convenient, and the connecting parts can be quickly disassembled for maintenance or replacement, saving time and labor costs. At the same time, the fixing method of the slider 11 and the slide groove 10 can provide accurate positioning and alignment, ensuring that the connecting parts can be accurately docked, and improving the stability and reliability of the connection.

[0056] In some embodiments, the brush 9 is an electrostatic brush.

[0057] Specifically, the electrostatic brush can effectively remove static electricity from the surface of an object. The brush 9 will charge the surface of the object in the process of absorbing dust. The use of the electrostatic brush can quickly neutralize the static electricity and restore the object to a neutral state, thereby reducing the impact of static electricity. At the same time, the bristles of the electrostatic brush are usually relatively fine and soft, and can penetrate into the tiny gaps on the surface of the object, remove impurities such as dust, debris, and hair, and keep the surface of the object clean.

[0058] In some embodiments, a cover plate 13 is respectively disposed at one end of the first cleaning rod 21 and the second cleaning rod 22 away from the connection, and the cover plate 13 is movably connected to the first cleaning rod 21 and the second cleaning rod 22 via a hinge.

[0059] Specifically, the cover plate 13 can effectively prevent the brush 9 from loosening and partially sliding out during the cleaning process. A concave-convex structure can also be provided between the cover plate 13 and the first cleaning rod 21 and the second cleaning rod 22. The grooves and protrusions on the surface are designed to make the cover plate 13 and the first cleaning rod 21 and the second cleaning rod 22 fit each other, thereby achieving the purpose of fixing. The concave-convex structure can provide strong tensile and shear resistance. The lower end of the cover plate 13 can also be provided with an arc-shaped extension plate, which extends beyond the lower ends of the first cleaning rod 21 and the second cleaning rod 22 to facilitate opening the cover plate 13.

[0060] In some embodiments, Figure 1 As shown, the dust collecting box 2 includes a dust collecting box 14 and a fixing box 15 . The dust collecting box 14 is arranged in the fixing box 15 . The lower end of the connecting rod 3 is fixed to the top of the side wall of the fixing box 15 near the yaw brake disc 4 .

[0061] Specifically, the dust box 14 in the double-layer dust box 2 can be taken out independently, which is convenient for the staff to clean it regularly. During the cleaning process, it is only necessary to take out the dust box 14, clean the dust in the dust box 14 and put it back in again, without disassembling the entire cleaning device, thereby improving the cleaning efficiency.

[0062] In some embodiments, two insert rings 141 are provided at the top of the side wall of the dust box 14, and a handle 142 is provided between the insert rings 141. Both ends of the handle 142 are inserted into the insert rings 141, and the ends of the handle 142 are rotatably connected to the insert rings.

[0063] Specifically, the handle 142 is designed so that the dust box 14 can be easily lifted without directly touching the dust box 14, keeping both hands clean and convenient to move; at the same time, the handle 142 is designed to assist in the removal and tilting process of the dust box 14, making the process of removing the dust box 14 more stable and avoiding accidental tilting or collapse of the dust box 14.

[0064] In some embodiments, a spring 16 is provided between the hook 5 and the ash receiving box 2 .

[0065] Specifically, the spring 16 buffer can make the movement process smoother and more stable, avoid the dispersed impact force and vibration caused by sudden acceleration or deceleration between the device and the yaw brake disc, slow down the speed change of the object by adjusting the stiffness and deformation of the spring, reduce the movement discontinuity caused by impact and vibration, and maintain the stability of the ash box 2; at the same time, by setting the spring 16, the safety can be improved, the wear and damage of the device can be reduced, and the service life can be extended.

[0066] In some embodiments, the surfaces of the first cleaning rod, the second cleaning rod and the ash receiving box 2 are provided with an antistatic coating.

[0067] Specifically, the antistatic coating can reduce the electrostatic attraction of the surface, making it difficult for the surface to absorb dust and impurities, and has a certain dust-proof effect. And because static electricity makes dust more likely to adhere to the surface, the presence of the antistatic coating can reduce the attraction of static electricity to dust, reducing the deposition and accumulation of dust. Since the antistatic coating can reduce the dust adsorption on the surface, it can extend the cleaning cycle, reduce the cleaning frequency, and save cleaning costs and time.

[0068] Those skilled in the art will easily conceive of other implementations of the present application after considering the specification and practicing the technical solutions disclosed herein.

[0069] This application is intended to cover any modifications, uses or adaptations of the present application, which follow the general principles of the present application and include common knowledge or customary technical means in the technical field that are not disclosed in the present application.

[0070] The description and examples are to be regarded as exemplary only, and the true scope and spirit of the present application are indicated by the following claims. It should be understood that the present application is not limited to the precise structure described above and shown in the drawings, and various modifications and changes may be made without departing from the scope thereof. The scope of the present application is limited only by the appended claims.

Claims

1. An automatic dust cleaning device for a yaw brake disc, characterized in that: include: A cleaning brush and an ash receiving box, wherein the cleaning brush is arranged above the ash receiving box, and the cleaning brush and the ash receiving box are fixed by a connecting rod; The cleaning brush is used to be arranged above the yaw brake disc and abut against the upper surface of the yaw brake disc, and the ash receiving box is used to be arranged on the axial side of the yaw brake disc; The ash receiving box is provided with hooks on both sides close to the yaw brake, and the hooks are used to connect with the hanging rings provided on one side of the yaw brake close to the ash receiving box; The cleaning brush comprises a first cleaning rod and a second cleaning rod. The first cleaning rod and the second cleaning rod are connected in a Y shape, and the connection is fixed to the upper end of the connecting rod by bolts.

2. The automatic dust cleaning device for the yaw brake disc according to claim 1 is characterized in that: A magnet is provided on one side of the connecting rod close to the yaw brake disc, and the connecting rod is adsorbed on the shaft side of the yaw brake disc through the magnet.

3. The automatic dust cleaning device for the yaw brake disc according to claim 1 is characterized in that: A brush is provided between the first cleaning rod, the second cleaning rod and the yaw brake disc, and the brush is detachably connected to the first cleaning rod and the second cleaning rod.

4. The automatic dust cleaning device for the yaw brake disc according to claim 3 is characterized in that: The first cleaning rod and the second cleaning rod are respectively provided with a slide groove, the upper part of the brush is a slider and the lower part is bristles, and the brush and the first cleaning rod and the second cleaning rod are fixed by inserting the slider into the slide groove.

5. The automatic dust cleaning device for the yaw brake disc according to claim 3 is characterized in that: The brush is an electrostatic brush.

6. The automatic dust cleaning device for the yaw brake disc according to claim 3 is characterized in that: A cover plate is respectively provided at one end of the first cleaning rod and the second cleaning rod away from the connection portion, and the cover plate is movably connected to the first cleaning rod and the second cleaning rod through a hinge.

7. The automatic dust cleaning device for the yaw brake disc according to claim 1 is characterized in that: The dust collecting box comprises a dust collecting box and a fixing box, wherein the dust collecting box is arranged in the fixing box, and the lower end of the connecting rod is fixed to the top end of the side wall of the fixing box near the yaw brake disc.

8. The automatic dust cleaning device for the yaw brake disc according to claim 7 is characterized in that: Two insert rings are arranged on the top of the side wall of the dust collecting box, a handle is arranged between the insert rings, two ends of the handle are inserted into the insert rings, and the end of the handle is rotatably connected with the insert rings.

9. The automatic dust cleaning device for yaw brake disc according to claim 1, characterized in that: A spring is arranged between the hook and the ash receiving box.

10. The automatic dust cleaning device for the yaw brake disc according to claim 1, characterized in that: The surfaces of the first cleaning rod, the second cleaning rod and the ash receiving box are provided with antistatic coatings.

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