A cleaning device for a land-based wind turbine brake disc

Abstract

The application discloses a kind of cleaning device for land wind turbine brake disc in the field of wind power generation technology, including brake disc body and two groups of symmetrically arranged cleaning units on its two sides, the inside of each group of cleaning units is provided with cleaning wheel, the top of each group of cleaning units is provided with transmission unit, the inside of each group of cleaning units is provided with cleaning unit on one side.The application is symmetrical on the two sides of brake disc Two groups of cleaning units are used for cleaning operation, each group of cleaning units contains cleaning wheel and transmission unit, the force of brake disc rotation is transmitted to the cleaning wheel by the cooperation of cleaning wheel and transmission unit, so that the cleaning wheel can be rotated to clean the outer wall of brake disc, avoid the problem of excessive oil adsorption and poor cleaning effect caused by the single position of cleaning wheel always in contact with brake disc.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of wind power generation, in particular to a cleaning device for brake disc of land-based wind turbine generator. BACKGROUND

[0002] Wind power generation as a clean renewable energy has been widely used in life, and the wind turbine generator is a mechanical device composed of various mechanisms and systems to convert wind power into electricity. The brake system is an important part of the wind turbine generator. The main purpose of the brake system is to brake the mechanical brake system when the wind turbine generator needs to stop and slow down due to strong wind, maintenance, etc. Large and medium-sized wind turbine generators basically use hydraulic braking to brake.

[0003] The brake mainly consists of a motor, a hydraulic pump, a brake caliper, a coupling and a brake disc. The brake caliper is controlled by the hydraulic pump to clamp the brake disc, so as to achieve the purpose of slowing down and stopping. The waste oil generated by the hydraulic pump during long-term use will pollute the surface of the brake disc, resulting in a decrease in the friction between the brake disc and the brake caliper, and thus a decrease in the braking effect of the brake disc, or even failure. In the prior art, the installation position of the wind turbine generator is limited (the brake disc is generally installed at the height position of the wind turbine which is flush with the windmill, i.e. near the top of the tower), which makes it difficult to clean the brake disc, and the cleaning operation is mostly performed manually, which is low in cleaning efficiency and cannot effectively guarantee the cleaning effect. SUMMARY

[0004] In view of the above problems of the existing cleaning device for brake disc of land-based wind turbine generator, the present application provides a cleaning device for brake disc of land-based wind turbine generator to solve such problems.

[0005] To solve the above technical problems, the present application provides the following technical scheme: a cleaning device for brake disc of land-based wind turbine generator, comprising a brake disc body and two groups of cleaning units symmetrically arranged on both sides of the brake disc body, each group of cleaning units is internally provided with a cleaning wheel, the top end of each group of cleaning units is provided with a transmission unit, and one side of the inside of each group of cleaning units is provided with a cleaning unit.

[0006] The cleaning wheel is rotationally arranged at the shaft position of the cleaning unit. The side surface of the cleaning unit is provided with a notch, and one side of the cleaning wheel extends outward through the notch. The inner wall of the cleaning unit is spirally wrapped with a spiral scraper, and one side of the spiral scraper abuts against the outer wall of the cleaning wheel. There is a space between the inner wall of the cleaning unit and the cleaning wheel, and the spiral scraper divides the space into two parts, namely an adsorption area and a cleaning area.

[0007] As a preferred scheme of the cleaning device for the brake disc of the land-based wind turbine generator set, the transmission unit comprises a limiting shaft arranged at the top end of the cleaning unit, an upper gear sleeved on the upper end of the limiting shaft, a lower gear sleeved on the lower end of the limiting shaft, the upper gear and the lower gear being fixedly connected, a side gear arranged at the top end of the cleaning wheel, the side surface of the side gear being engaged with the lower gear, and a gear ring fixedly connected to the side surface of the brake disc body, the gear ring being engaged with the upper gear for transmission.

[0008] As a preferred scheme of the cleaning device for the brake disc of the land-based wind turbine generator set, the lower end of the cleaning unit is provided with a connecting seat, the inner wall of the cleaning unit is provided with a spiral guide rail consistent with the spiral angle of the spiral scraper, the spiral guide rail is misaligned with the spiral scraper, a straight guide groove is vertically arranged on one side of the inner wall of the cleaning unit, and a discharge port is arranged at the bottom end of the cleaning unit, the discharge port being in communication with the inside and outside of the cleaning unit, and the end of the cleaning unit extending into the discharge port.

[0009] As a preferred scheme of the cleaning device for the brake disc of the land-based wind turbine generator set, the spiral guide rail and the spiral scraper have the same spiral length, the number of spiral turns of both is 0.5, and the end of the spiral scraper is located above the side of the discharge port.

[0010] As a preferred scheme of the cleaning device for the brake disc of the land-based wind turbine generator set, the cleaning unit comprises a lead screw vertically arranged on one side of the inside of the cleaning unit, a connecting wheel arranged at the top end of the lead screw, a transmission belt connected between the connecting wheel and the side gear, and a push block arranged at the end of the lead screw, the push block extending into the discharge port.

[0011] As a preferred scheme of the cleaning device for the brake disc of the land-based wind turbine generator set, a sliding block is threadedly connected to the lead screw, the side surface of the sliding block extending into the straight guide groove, a plurality of arc-shaped frames are arranged on the side surface of the sliding block, a push block is arranged at the outer end of the arc-shaped frame, the side surface of the push block slidingly connected to the spiral guide rail, and the bottom surface of the push block abutting the upper surface of the spiral scraper.

[0012] As a preferred scheme of the cleaning device for the brake disc of the land-based wind turbine generator set, the arc-shaped frame is in an arc-shaped structure, and a plurality of arc-shaped frames are connected in a head-to-tail manner to form a regular half-circular arc structure.

[0013] As a preferred scheme of the cleaning device for the brake disc of the land-based wind turbine generator set, a mounting seat is arranged below the cleaning unit, a threaded rod is transversely arranged on the connecting seat corresponding to the ends of the two cleaning units, and the end of the connecting seat is transversely and slidingly connected to the mounting seat.

[0014] As a preferred scheme of the cleaning device for the brake disc of the land-based wind turbine generator set, the connecting seat is threadedly connected with the threaded rod, and the side surface of the threaded rod is connected with the motor.

[0015] As a preferred scheme of the cleaning device for the brake disc of the land-based wind turbine generator set, the side surface of the mounting seat is provided with the receiving box, and the top end opening of the receiving box corresponds to the lower end of the discharge port.

[0016] The brake disc is cleaned by the two groups of cleaning units symmetrically arranged on the two sides of the brake disc, each group of cleaning units includes a cleaning wheel and a transmission unit, the cleaning wheel is driven to rotate by the transmission unit, the cleaning wheel is driven to rotate by the transmission unit, the cleaning wheel is driven to rotate by the transmission unit, the cleaning wheel is driven to rotate by the transmission unit, and the cleaning wheel is driven to rotate by the transmission unit.

[0017] The transmission unit drives the cleaning wheel to rotate in the opposite direction of the rotation direction of the brake disc, and the rotation directions of the cleaning wheel and the brake disc are opposite, so that the contact positions between the cleaning wheel and the brake disc are dislocated and rubbed, and the contact friction between the cleaning wheel and the brake disc is increased, so that the cleaning force of the cleaning wheel is increased, and the cleaning effect of the cleaning wheel is further improved.

[0018] The spiral scraper is arranged on the outer side of the cleaning wheel, the spiral scraper divides the inner cavity of the cleaning unit into an adsorption area and a cleaning area, the cleaning wheel is arranged in the adsorption area and the cleaning area, and the part of the cleaning wheel in the adsorption area directly contacts the brake disc.

[0019] The cleaning unit is arranged in the cleaning area to cooperate with the spiral scraper, the oil stains scraped off by the spiral scraper flow downward along the spiral direction of the spiral scraper under the action of gravity, and the cleaning unit moves along the side of the spiral scraper where the oil stains flow, so that the cleaning unit can push and scrape off the oil stains on the spiral scraper downward, avoid the oil stains remaining, and uniformly discharge the oil stains to the receiving box under the action of gravity, and realize the uniform collection of the oil stains. BRIEF DESCRIPTION OF DRAWINGS

[0020] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings needed to be used in the embodiments will be briefly introduced as follows. Obviously, the drawings in the following description are only some embodiments of the present application, and other drawings can be obtained by those skilled in the art without any creative effort on the basis of these drawings. Among them:

[0021] Figure 1 It is an installation state schematic diagram of the cleaning device for the brake disc of the land wind turbine generator set of the present application.

[0022] Figure 2 It is a whole structure schematic diagram of the cleaning device for the brake disc of the land wind turbine generator set of the present application.

[0023] Figure 3 It is an internal structure schematic diagram of the cleaning unit of the cleaning device for the brake disc of the land wind turbine generator set of the present application.

[0024] Figure 4 It is a structure schematic diagram of the cleaning wheel and the spiral scraper of the cleaning device for the brake disc of the land wind turbine generator set of the present application.

[0025] Figure 5 It is a structure schematic diagram of the adsorption area and the cleaning area of the cleaning device for the brake disc of the land wind turbine generator set of the present application.

[0026] Figure 6 It is a structure schematic diagram of the transmission unit of the cleaning device for the brake disc of the land wind turbine generator set of the present application.

[0027] Figure 7 It is a structure schematic diagram of the cleaning unit of the cleaning device for the brake disc of the land wind turbine generator set of the present application.

[0028] Figure 8 It is an enlarged schematic diagram of the structure at A in the present application. Figure 7

[0029] Figure 9 It is a sectional view of the connecting position of the arc-shaped frame and the transmission belt of the cleaning device for the brake disc of the land wind turbine generator set of the present application.

[0030] Figure 10 It is a schematic diagram of the rotating direction of the cleaning wheel, the transmission unit and the brake disc body of the cleaning device for the brake disc of the land wind turbine generator set of the present application.

[0031] ​Reference numerals: 1, cleaning unit; 11, connecting seat; 12, spiral scraper; 13, spiral guide rail; 14, straight guide groove; 15, discharge port; 2, cleaning wheel; 3, transmission unit; 31, limiting shaft; 32, upper gear; 33, lower gear; 34, side gear; 35, gear ring; 4, cleaning unit; 41, screw rod; 42, sliding block; 43, arc-shaped frame; 44, push block; 45, connecting wheel; 46, transmission belt; 5, mounting seat; 51, threaded rod; 52, motor; 53, storage box; 6, brake disc body; 7, adsorption area; 8, cleaning area. DETAILED DESCRIPTION

[0032] In order to make the above-mentioned objectives, features and advantages of the present application more apparent and easy to understand, the specific embodiments of the present application will be described in detail below with reference to the accompanying drawings.

[0033] In the following description, a lot of specific details are set forth in order to provide a thorough understanding of the present application, but the present application can also be implemented in other ways different from the description, and those skilled in the art can make similar extensions without departing from the concept of the present application, so the present application is not limited by the specific embodiments disclosed below.

[0034] Reference Figures 1-10For the embodiment of the present application, a cleaning device for land wind turbine brake disc is provided, which comprises a brake disc body 6 and two groups of symmetrically arranged cleaning units 1 on both sides of the brake disc body 6. Each group of cleaning units 1 is internally provided with a cleaning wheel 2, and the top end of each group of cleaning units 1 is provided with a transmission unit 3. One side of the inside of each group of cleaning units 1 is provided with a cleaning unit 4. The two groups of cleaning units 1 respectively clean the two sides of the brake disc body 6, ensuring the comprehensiveness of cleaning. The cleaning wheel 2 is made of a material with good adsorption properties (such as nylon material or polyester fiber material). The nylon material has a certain flexibility, which can better fit the surface of the brake disc during cleaning, effectively remove oil stains, and will not scratch the brake disc. It has good wear resistance and can maintain its shape and cleaning performance during multiple uses, has a relatively long service life, is suitable for various types of wind power brake discs, especially for brake discs with high surface finish requirements. During the cleaning process, the nylon cleaning wheel can penetrate into the fine gaps of the brake disc to remove oil stains and impurities. The polyester fiber cleaning wheel has excellent oil absorption performance and can quickly absorb oil stains on the surface of the brake disc, making the cleaning work more efficient. The material is also relatively soft and causes minimal damage to the surface of the brake disc. Even during high-speed rotation, the integrity of the brake disc can be guaranteed. When there are more and more viscous oil stains on the brake disc, the polyester fiber cleaning wheel can play a good cleaning role. It can continuously absorb oil stains to reduce the residue of oil stains on the brake disc. The cleaning wheel 2 can effectively adsorb the oil stains on the brake disc body 6. The transmission unit 3 can transmit the power of the rotation of the brake disc body 6 to the cleaning wheel 2, so that the cleaning wheel 2 can rotate and clean along with the rotation of the brake disc body 6.

[0035] Referring to Figure 3 With Figure 4 , the cleaning wheel 2 is rotationally arranged at the axial position of the cleaning unit 1. The side surface of the cleaning unit 1 is provided with a gap, and one side of the cleaning wheel 2 extends outward through the gap. The inner wall of the cleaning unit 1 is spirally wound with a spiral scraper 12, and one side of the spiral scraper 12 abuts against the outer wall of the cleaning wheel 2. There is a space between the inner wall of the cleaning unit 1 and the cleaning wheel 2, and the spiral scraper 12 divides the space into two parts, an adsorption area 7 and a cleaning area 8. The cleaning wheel 2 is arranged in the adsorption area 7 and the cleaning area 8, and the part of the cleaning wheel 2 located in the adsorption area 7 directly contacts the brake disc body 6. The spiral scraper 12 is fixedly connected to the inner wall of the cleaning unit 1 and remains stationary during use. The spiral scraper 12 can press the outer wall of the cleaning wheel 2 when the spiral scraper 12 rotates, so that the oil stains are discharged from the cleaning wheel 2 and blocked in the cleaning area 8 by the spiral scraper 12. The cleaning wheel 2 that enters the cleaning area 8 through the spiral scraper 12 regains strong adsorption effect, facilitating the next cleaning and adsorption operation, thereby further enhancing the cleaning effect of the cleaning wheel 2.

[0036] Wherein, referring to Figure 6 , the transmission unit 3 comprises a limiting shaft 31 arranged at the top end of the cleaning unit 1, an upper gear 32 sleeved on the upper end of the limiting shaft 31, a lower gear 33 sleeved on the lower end of the limiting shaft 31, and the upper gear 32 is fixedly connected with the lower gear 33, a side gear 34 arranged at the top end of the shaft of the cleaning wheel 2, and the side surface of the side gear 34 is engaged with the lower gear 33, and a gear ring 35 fixedly connected with the side surface of the brake disc body 6, and the gear ring 35 is engaged with the upper gear 32 for transmission, the upper gear 32 is driven by the lower gear 33 to drive the side gear 34 to rotate through the engagement transmission of the gear ring 35, and the rotating side gear 34 synchronously drives the cleaning wheel 2 to rotate, so that the cleaning wheel 2 can rotate to rub and clean the outer wall of the brake disc 6, the rotating cleaning wheel 2 can make the outer wall of the cleaning wheel 2 contact the brake disc 6 at all positions, and the oil stains on the outer wall of the brake disc 6 are adsorbed and cleaned, avoiding the problem of excessive oil stain adsorption and poor cleaning effect caused by the single position of the cleaning wheel 2 contacting the brake disc, and ensuring the cleaning and adsorption effect of the cleaning wheel 2.

[0037] Further, referring to Figure 6 and Figure 10 Since the gear ring 35 is engaged with the upper gear 32, the rotating directions of the two are opposite, and the gear ring 35 is fixedly connected with the brake disc body 6, so the rotating direction of the brake disc body 6 is the same as that of the gear ring 35, and the upper gear 32 is engaged with the side gear 34 for transmission through the lower gear 33, so that the direction in which the side gear 34 drives the upper gear 32 to rotate is opposite to that of the upper gear 32. Combined with the actual arrangement direction of the brake disc body 6 and the cleaning wheel 2, the brake disc body 6 rotates clockwise in the horizontal direction as a whole, and the cleaning wheel 2 rotates clockwise in the vertical direction, so the rotating directions of the contact positions of the brake disc body 6 and the cleaning wheel 2 are opposite, and the rotating directions of the two are opposite, which can cause the contact positions to be dislocated and rubbed, thereby increasing the contact friction between the two, so as to strengthen the cleaning force of the cleaning wheel 2 and further improve the cleaning effect of the cleaning wheel 2.

[0038] Further, referring to Figure 3 The lower end of the cleaning unit 1 is provided with a connecting seat 11, the inner wall of the cleaning unit 1 is provided with a spiral guide rail 13 with the same spiral angle as the spiral scraper 12, the spiral guide rail 13 is dislocated from the spiral scraper 12, a straight guide groove 14 is vertically arranged on one side of the inner wall of the cleaning unit 1, and a discharge port 15 is arranged at the bottom end of the cleaning unit 1, and the discharge port 15 communicates the inside and outside of the cleaning unit 1, and the end of the cleaning unit 4 extends into the discharge port 15, the discharge port 15 is used for discharging the oil stains cleaned by the spiral scraper 12, and the spiral guide rail 13 is used for guiding and limiting the push block 44.

[0039] Further, referring to Figure 3 , the spiral guide rail 13 has the same spiral length as the spiral scraper 12, both have 0.5 spiral turns, and the end of the spiral scraper 12 is located above the side of the discharge port 15. The object moving along the spiral guide rail 13 can also move along the spiral path of the spiral scraper 12. The spiral downward winding of the spiral scraper 12 can make the oil stains slide down more smoothly, facilitating the discharge of the oil stains.

[0040] Further, referring to Figure 7 , the cleaning unit 4 includes a lead screw 41 vertically arranged on one side inside the cleaning unit 1, a connecting wheel 45 arranged at the top end of the lead screw 41, a transmission belt 46 connected between the connecting wheel 45 and the side gear 34, and a push block 44 arranged at the end of the lead screw 41, and the push block 44 extends into the discharge port 15. The lead screw 41 is a bidirectional lead screw structure, and the lead screw 41 is driven by the side gear 34 through the connecting wheel 45 and the transmission belt 46, and can rotate with the side gear 34. The sliding block 42 is connected with the lead screw 41 through threads, and can reciprocate in the vertical direction under the drive of the lead screw 41, and the push block 44 extending into the discharge port 15 can accelerate the discharge of the oil stains. The oil stains have a certain degree of viscosity, and the push block 44 can also avoid the blockage of the discharge port 15 by stirring in the discharge port 15.

[0041] Further, referring to Figure 8 , the lead screw 41 is threadedly connected with the sliding block 42, the side surface of the sliding block 42 extends into the straight guide groove 14, a plurality of arc-shaped frames 43 are arranged on the side surface of the sliding block 42, and a push block 44 is arranged at the outer end of the arc-shaped frame 43. The side surface of the push block 44 is slidingly connected on the spiral guide rail 13, and the bottom surface of the push block 44 is in contact with the upper surface of the spiral scraper 12. The push block 44 is slidingly connected on the spiral guide rail 13. When the push block 44 is pushed by the sliding block 42 in the vertical direction through the arc-shaped frame 43, the push block 44 can slide along the spiral path guided by the spiral guide rail 13. In combination with the contact between the bottom surface of the push block 44 and the spiral scraper 12, the moving push block 44 can push the oil stains attached to the spiral scraper 12 downward, thereby accelerating the discharge of the oil stains and ensuring the working effect of the spiral scraper 12.

[0042] Further, referring to Figure 9, the arc-shaped frame 43 is in an arc-shaped structure, a plurality of groups of arc-shaped frames 43 are connected in a head-to-tail manner to form a regular half-circular arc structure, the plurality of groups of arc-shaped frames 43 can be folded and unfolded, and each two groups of arc-shaped frames 43 are connected and limited by the transmission belt 46 with an arc, so that each group of arc-shaped frames 43 can only be folded and unfolded at the same arc angle. When the slider 42 applies a vertical pushing force to the push block 44 through the arc-shaped frame 43, the push block 44 slides along the spiral guide rail 13 and also applies a horizontal reverse force to the arc-shaped frame 43, so that the plurality of groups of arc-shaped frames 43 can follow the matching sliding and folding adjustment when the push block 44 moves in the vertical direction of the spiral path, and the stability of the overall operation of the cleaning unit 4 is ensured.

[0043] Further, referring to Figure 1 , the lower part of the cleaning unit 1 is provided with a mounting seat 5, a threaded rod 51 is horizontally arranged on the connecting seat 11 corresponding to the ends of the two groups of cleaning units 1, and the end of the connecting seat 11 is horizontally slidably connected to the mounting seat 5. The connecting seat 11 is threadedly connected with the threaded rod 51, the side surface of the threaded rod 51 is connected with a motor 52, the side surface of the mounting seat 5 is provided with a storage box 53, the top end opening of the storage box 53 corresponds to the lower end of the discharge port 15, and the two groups of cleaning units 1 can be pushed by the threaded rod 51 to approach the two sides of the brake disc body 6 during use. During the approaching process, the upper gear 32 is in abutment and engagement with the gear ring 35, so that the entire driving device is driven to perform cleaning operation. When cleaning is not needed, the two groups of cleaning units 1 are away from the two sides of the brake disc body 6, which does not interfere with the normal operation of the brake disc body 6. The storage box 53 located below the discharge port 15 is used to collect the oil stains discharged by the spiral scraper 12, so as to realize unified collection operation of the oil stains.

[0044] In summary, during use, two groups of cleaning units 1 are symmetrically arranged on the two sides of the brake disc 6 to perform cleaning operation. The transmission unit 3 collects the rotating force of the brake disc body 6 through the gear ring 35 and the upper gear 32, and transmits the rotating force to the cleaning wheel 2 through the lower gear 33 and the side gear 34, so that the cleaning wheel 2 can rotate and rub against the outer wall of the brake disc 6. In this way, the outer wall of the cleaning wheel 2 is in contact with the brake disc 6 at all positions, avoiding the problem of excessive oil stain adsorption and poor cleaning effect caused by the single position of the cleaning wheel 2 being in contact with the brake disc 6. The cleaning and adsorption effect of the cleaning wheel 2 is ensured.

[0045] Meanwhile, referring to Figure 10 , the direction in which the transmission unit 3 drives the cleaning wheel 2 to rotate is opposite to the direction in which the brake disc 6 rotates. The opposite rotating directions of the two will cause the contact positions between the two to be dislocated and rubbed, thereby increasing the contact friction force between the two, so as to strengthen the cleaning force of the cleaning wheel 2 and further enhance the cleaning effect of the cleaning wheel 2.

[0046] Referring to Figure 5 And by setting the spiral scraper 12 of the spiral structure to divide the inner cavity of the cleaning unit 1 into the adsorption area 7 and the cleaning area 8, the cleaning wheel 2 is set in the adsorption area 7 and the cleaning area 8 as a whole, and the part of the cleaning wheel 2 in the adsorption area 7 directly contacts the brake disc 6. In the process of rotation of the cleaning wheel 2, when the part of the cleaning wheel 2 in the adsorption area 7 enters the cleaning area 8, the spiral scraper 12 can scrape off the oil stains on the part of the cleaning wheel 2 from the adsorption area 7 and the oil stains in the cleaning area 8, so that the cleaning wheel 2 has a strong adsorption effect after entering the adsorption area 7 through the spiral scraper 12, facilitating the next cleaning and adsorption operation, thereby further enhancing the cleaning effect of the cleaning wheel 2.

[0047] At the same time, the cleaning unit 4 is arranged in the cleaning area 7 to work with the spiral scraper 12. The cleaning unit 4 can drive the sliding block 42 to move vertically along the screw rod 41 through the cooperation of the side gear 34 and the connecting wheel 45. The vertically moving sliding block 42 drives the push block 44 to move along the spiral surface of the spiral scraper 12 through the arc-shaped frame 43, thereby scraping off the oil stains remaining on the spiral scraper 12 downward, and making the oil stains be uniformly discharged into the storage box 53 under the action of gravity through the discharge port 15, realizing the unified collection of the oil stains.

[0048] It should be noted that the above embodiments are only used to illustrate the technical solutions of the present application and are not limited. Although the present application has been described in detail with reference to the preferred embodiments, those skilled in the art should understand that the technical solutions of the present application can be modified or replaced equivalently without departing from the spirit and scope of the technical solutions of the present application, which should be covered in the scope of the claims of the present application.

Claims

1. A cleaning device for land-based wind turbine brake disc, comprising a brake disc body (6) and two sets of symmetrical cleaning units (1) arranged on both sides of the brake disc body (6), characterized in that: The interior of each group of the cleaning units (1) is provided with a cleaning wheel (2), the top end of each group of the cleaning units (1) is provided with a transmission unit (3), and one side of the interior of each group of the cleaning units (1) is provided with a cleaning unit (4); The cleaning wheel (2) is rotationally arranged at the axial position of the cleaning unit (1), the side surface of the cleaning unit (1) is provided with a gap, one side of the cleaning wheel (2) extends outward through the gap, the inner wall of the cleaning unit (1) is spirally wound with a spiral scraper (12), one side of the spiral scraper (12) abuts against the outer wall of the cleaning wheel (2), there is a space between the inner wall of the cleaning unit (1) and the cleaning wheel (2), and the spiral scraper (12) divides the space into two parts, i.e., an adsorption area (7) and a cleaning area (8); The lower end of the cleaning unit (1) is provided with a connecting seat (11), the inner wall of the cleaning unit (1) is provided with a spiral guide rail (13) with the same spiral angle as the spiral scraper (12), the spiral guide rail (13) is dislocated from the spiral scraper (12), a straight guide groove (14) is vertically arranged on one side of the inner wall of the cleaning unit (1), and a discharge port (15) is arranged at the bottom end of the cleaning unit (1), and the discharge port (15) communicates the interior of the cleaning unit (1) with the outside, and the tail end of the cleaning unit (4) extends into the discharge port (15); The spiral guide rail (13) has the same spiral length as the spiral scraper (12), the number of spiral turns of the two is 0.5, and the tail end of the spiral scraper (12) is located above one side of the discharge port (15).

2. The cleaning device for a land-based wind turbine brake disc of claim 1, wherein: The transmission unit (3) comprises a limiting shaft (31) arranged at the top end of the cleaning unit (1), an upper gear (32) sleeved on the upper end of the limiting shaft (31), a lower gear (33) sleeved on the lower end of the limiting shaft (31), the upper gear (32) and the lower gear (33) are fixedly connected, a side gear (34) arranged at the top end axial position of the cleaning wheel (2), the side surface of the side gear (34) is engaged with the lower gear (33), and a gear ring (35) fixedly connected to the side surface of the brake disc body (6) is engaged with the upper gear (32) for transmission.

3. The cleaning device for land-based wind turbine brake disc according to claim 1, characterized in that: The cleaning unit (4) comprises a lead screw (41) vertically arranged on one side of the interior of the cleaning unit (1), a connecting wheel (45) arranged at the top end of the lead screw (41), a transmission belt (46) connected between the connecting wheel (45) and the side gear (34), and a push block (44) arranged at the tail end of the lead screw (41), and the push block (44) extends into the discharge port (15).

4. The cleaning device for land-based wind turbine brake disc according to claim 3, characterized in that: The lead screw (41) is threadedly connected with a sliding block (42), the side surface of the sliding block (42) extends into the straight guide groove (14), a plurality of arc-shaped frames (43) are arranged on the side surface of the sliding block (42), and a push block (44) is arranged at the outer end of the arc-shaped frame (43), the side surface of the push block (44) is slidingly connected to the spiral guide rail (13), and the bottom surface of the push block (44) is attached to the upper surface of the spiral scraper (12).

5. The cleaning device for land-based wind turbine brake disc according to claim 4, characterized in that: The arc-shaped frame (43) has an arc-shaped structure, and a plurality of arc-shaped frames (43) are connected in a head-to-tail manner to form a regular half-circular arc structure.

6. The cleaning device for land-based wind turbine brake disc according to claim 1, characterized in that: The lower part of the cleaning unit (1) is provided with a mounting base (5), the connecting base (11) corresponding to the end of the two groups of cleaning units (1) is provided with a threaded rod (51) transversely, and the end of the connecting base (11) is transversely and slidingly connected to the mounting base (5).

7. The cleaning device for land-based wind turbine brake disc according to claim 6, characterized in that: The connecting base (11) is threadedly connected with the threaded rod (51), and the side surface of the threaded rod (51) is connected with a motor (52).

8. The cleaning device for land-based wind turbine brake disc according to claim 6, characterized in that: The side surface of the mounting base (5) is provided with a receiving box (53), and the top end opening of the receiving box (53) corresponds to the lower end of the discharge port (15).

Images