An automatic dust cleaning device for a coal conveyor bridge track inspection robot and an inspection robot

Abstract

The present invention discloses an automatic dust cleaning device for a patrol robot on a coal conveyor trestle track and an inspection robot, relating to the technical field of coal conveyor trestle cleaning; the present invention comprises an inspection track, a support assembly is provided at the bottom end of the inspection track, two symmetrically distributed moving assemblies for driving the inspection robot to move are provided on the support assembly, a limiting assembly for limiting the movement of the patrol robot is installed on the moving assembly, and a cleaning assembly for cleaning the patrol track is provided on the support assembly and the moving assembly; the present invention utilizes the moving assembly to drive the inspection robot to move on the inspection track, cooperates with the work of the cleaning assembly to realize the cleaning operation of the inspection track, can effectively prevent the dust on the inspection track from being re-scattered into the interior of the coal conveyor trestle due to cleaning, and utilizes the limiting assembly to limit the movement process of the inspection robot, so that the inspection robot can move smoothly on the inspection track.

Description

Technical Field

[0001] The present invention relates to the technical field of coal conveying trestle cleaning, in particular to an automatic dust cleaning device for a coal conveying trestle track inspection robot and an inspection robot. Background Art

[0002] During the coal transportation process, the coal conveyor trestle will produce a large amount of coal dust impurities, forming a high concentration of harmful dust. This dust not only causes environmental pollution, but also may cause dust explosion accidents when the dust concentration reaches a certain threshold, causing huge losses to thermal power plants. Therefore, comprehensive dust control work, especially ash cleaning measures, is crucial to improving the safety and quality of coal transportation.

[0003] When the inspection robot is inspecting inside the coal conveyor trestle, a certain amount of dust will accumulate on its track due to the dust dispersed in the air. It is necessary to clean the track to avoid the invisible hazards of dust, improve the operating reliability of the coal conveyor trestle, and thus ensure the operational safety of the thermal power plant.

[0004] When current track inspection robots perform dust cleaning operations on the inspection tracks, they mostly clean the inspection tracks directly with a cleaning brush. The dust after cleaning is not collected, so that during cleaning, the dust on the inspection tracks will be scattered again inside the coal conveyor trestle, making the cleaning work of the cleaning device incomplete. Secondly, when the inspection robot moves on the inspection track, it is necessary to keep it stable during the movement to facilitate the efficient work of the inspection robot. In response to the above problems, the inventors proposed an automatic dust cleaning device for a coal conveyor trestle track inspection robot and an inspection robot for solving the above problems. Summary of the Invention

[0005] In order to solve the problem that when the track inspection robot performs dust cleaning operations on the inspection track, the inspection track is mostly cleaned directly with a cleaning brush, and the dust after cleaning is not collected, so that during cleaning, the dust on the inspection track will be scattered again inside the coal conveyor trestle, making the cleaning work of the cleaning device incomplete; secondly, when the inspection robot moves on the inspection track, it is necessary to keep it stable during the movement to facilitate the efficient work of the inspection robot; the purpose of the present invention is to provide an automatic dust cleaning device for a coal conveyor trestle track inspection robot and an inspection robot.

[0006] To solve the above technical problems, the present invention adopts the following technical solutions: an automatic dust cleaning device for a coal conveyor trestle track inspection robot, comprising an inspection track, a support assembly provided at the bottom end of the inspection track, two symmetrically distributed moving assemblies provided on the support assembly for driving the inspection robot to move, a limit assembly installed on the moving assembly for limiting the movement of the inspection robot, and the two limit assemblies are located on both sides of the inspection track, and a dust cleaning assembly for cleaning the inspection track is provided on the support assembly and the moving assembly;

[0007] The support assembly includes a support frame, four first wheel frames distributed in a rectangular shape are installed on the top of the support frame, and first rollers are rotatably provided on the first wheel frames, and the first rollers are in contact with the bottom end of the inspection track; the moving assembly includes a transmission box, two rotating shafts and two rotating rods are rotatably provided on the upper end of the transmission box, and the two rotating rods are located between the two rotating shafts, two second rollers are fixedly installed on the rotating shaft, and the second rollers are rotatably arranged on the upper surface of the inspection track, and a roller brush is fixedly installed on the outer ring of the rotating rod, and the roller brush is in contact with the upper surface of the inspection track;

[0008] The limiting assembly includes a fixed plate, which is fixedly mounted on the top of the transmission box, and two support arms are rotatably provided on the side of the fixed plate close to the inspection track, and a second wheel frame is fixedly mounted on the side of the support arm close to the inspection track, and a third roller is rotatably provided on the second wheel frame; the dust cleaning assembly includes a protective tube, which is fixedly mounted on the side of the transmission box close to the inspection track, a first dust suction pipe is fixedly mounted inside the protective tube, a second dust suction pipe is fixedly mounted on the top of the protective tube, and the second dust suction pipe is located at the bending part of the inspection track, a linear brush is fixedly mounted inside the second dust suction pipe, and the linear brush is in contact with the outer side of the inspection track.

[0009] Preferably, several connecting plates distributed in a straight line are fixedly installed on the top of the support frame, and drive shafts are rotatably provided on several of the connecting plates. Hexagonal columns are fixedly installed at the centers of both ends of the drive shafts, and a first gear is fixedly installed on the outer ring of the drive shaft. A servo motor is fixedly installed on one of the connecting plates, and a second gear is fixedly installed on the output end of the servo motor, and the second gear is meshed with the first gear.

[0010] Preferably, four rectangularly distributed cylinders are fixedly mounted on the top of the support frame, and the four first wheel frames are rotatably mounted on the corresponding cylinders. Two sets of plungers are fixedly mounted on one side of the support frame close to the two transmission boxes.

[0011] Preferably, two symmetrically distributed connecting brackets are fixedly mounted on the transmission box, and the two connecting brackets are respectively slidably set on two groups of plug rods on one side of the support frame. A bidirectional screw is rotatably provided on the connecting bracket, and the bidirectional screw can slide inside the plug rod. Two splints are threaded on the bidirectional screw, and the two splints can contact the inner side of the plug rod, and the splints can slide along the connecting bracket.

[0012] Preferably, a transmission shaft is rotatably provided at the lower end of the transmission box, and two hexagonal columns are slidably inserted into the centers of the two transmission shafts respectively. The transmission shaft and the two rotating shafts are connected by a first synchronous belt and a first synchronous wheel. A third gear is fixedly installed on the two rotating rods, and the two third gears are engaged with each other. One of the rotating rods and a rotating shaft on one side of it is connected by a second synchronous belt and a second synchronous wheel.

[0013] Preferably, a limit cylinder and two hinged seats are fixedly installed on the side of the fixed plate close to the inspection track, and the limit cylinder is located between the two hinged seats, and the two hinged seats are respectively hingedly connected to the side of the two support arms away from the inspection track. A limit block is slidingly provided inside the limit cylinder, and a limit rod is fixedly installed on the side of the limit block close to the inspection track, and the limit rod slides through the limit cylinder, and an end block is fixedly installed on the end of the limit rod close to the inspection track, and a spring is fixedly installed between the end block and the fixed plate, and the spring is slidingly sleeved on the limit cylinder and the outer ring of the limit rod.

[0014] Preferably, both ends of the end block are hingedly connected to a connecting arm, the other end of the connecting arm is fixedly mounted with a connecting rod, and the two connecting rods are rotatably arranged on the two support arms respectively.

[0015] Preferably, a first connecting pipe is fixedly installed inside the casing, and the first dust suction pipe and the second dust suction pipe are connected through the first connecting pipe. A dust suction device is fixedly installed on the top of the supporting frame, and a second connecting pipe is connected between the dust suction device and the two first dust suction pipes.

[0016] Preferably, the roller brush is located inside the protective tube and on both sides of the first dust suction pipe, and the distance between the first dust suction pipe, the second dust suction pipe and the protective tube and the inspection track surface is 1 cm.

[0017] A coal conveying trestle track inspection robot also includes the automatic dust cleaning device of the coal conveying trestle track inspection robot, and the coal conveying trestle track inspection robot body is installed at the lower end inside the support frame.

[0018] Compared with the prior art, the present invention has the following beneficial effects:

[0019] 1. The present invention utilizes a moving assembly to drive the inspection robot to move on the inspection track and to perform dust cleaning operations on the inspection track. The dust after cleaning is collected and processed in conjunction with the dust cleaning assembly, effectively preventing the dust on the inspection track from being re-scattered into the coal conveyor trestle due to cleaning. The limiting assembly is used to limit the movement of the inspection robot, allowing the inspection robot to move smoothly on straight lines and curves, thereby improving the working efficiency of the inspection robot.

[0020] 2. The present invention utilizes the rotation of the drive shaft to drive the rotation of the two transmission shafts, the rotation of the transmission shaft drives the rotating shaft, and the rotation of the rotating shaft drives the second roller to rotate, so that the inspection robot can move on the inspection track. The third roller at the end of the support arm rolls on the inspection track and the spring supports the side of the support arm to limit the movement of the inspection robot, so that the inspection robot can move more smoothly in a more consistent manner with the trajectory of the inspection track when moving on a curve.

[0021] 3. The present invention utilizes the rotation of the rotating shaft to drive the rotating rod to rotate, and utilizes the two rotating rods to rotate toward each other, driving the roller brush thereon to rotate, and cooperates with the movement of the inspection robot to drive the linear brush to move, thereby cleaning the upper surface of the inspection track, and utilizing the dust suction device to suck the dust into the interior of the dust suction device through the first dust suction pipe, the first connecting pipe, the second dust suction pipe and the second connecting pipe, thereby achieving the effect of automatically cleaning the inspection track and preventing dust from accumulating on the inspection track or scattering inside the coal conveyor trestle. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0023] Figure 1 It is a schematic diagram of the overall structure of the present invention.

[0024] Figure 2 It is a schematic diagram of the overall cross-sectional structure of the present invention.

[0025] Figure 3 It is a schematic diagram of the cross-sectional structure of the dust cleaning component of the present invention.

[0026] Figure 4 This is a schematic structural diagram of the first dust collection duct and the second dust collection duct of the present invention.

[0027] Figure 5 For the present invention Figure 2 A magnified schematic diagram of the structure in the middle.

[0028] Figure 6For the present invention Figure 2 A magnified schematic diagram of the structure at point B in the middle.

[0029] Figure 7 For the present invention Figure 2 Enlarged schematic diagram of the structure at point C in the middle.

[0030] Figure 8 For the present invention Figure 3 Enlarged schematic diagram of the structure at point D in the middle.

[0031] Figure 9 For the present invention Figure 7 Enlarged schematic diagram of the structure at E in the middle.

[0032] In the figure: 1. Inspection track; 2. Support assembly; 201. Support frame; 202. Connecting plate; 203. Drive shaft; 204. Hexagonal column; 205. First gear; 206. Second gear; 207. Servo motor; 208. Insert rod; 209. Cylinder; 210. First wheel frame; 211. First roller; 3. Moving assembly; 301. Transmission box; 302. Connecting bracket; 303. Bidirectional screw; 304. Clamp; 305. Transmission shaft; 306. Rotating shaft; 307. Second roller; 308. Rotating rod; 309. Third gear Wheel; 310, roller brush; 4, limiting assembly; 401, fixing plate; 402, hinged seat; 403, support arm; 404, second wheel frame; 405, third roller; 406, limiting cylinder; 407, limiting rod; 408, limiting block; 409, spring; 410, end block; 411, connecting arm; 412, connecting rod; 5, dust cleaning assembly; 501, protective tube; 502, first dust suction pipe; 503, first connecting pipe; 504, second dust suction pipe; 505, linear brush; 506, second connecting pipe; 507, dust suction device. DETAILED DESCRIPTION

[0033] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0034] Example: Figure 1-9As shown, the present invention provides an automatic dust cleaning device for a coal conveyor trestle track inspection robot, comprising an inspection track 1, a support assembly 2 being provided at the bottom end of the inspection track 1, two symmetrically distributed moving assemblies 3 being provided on the support assembly 2 for driving the inspection robot to move, a limit assembly 4 being installed on the moving assembly 3 for limiting the position of the inspection robot during movement, and the two limit assemblies 4 being located on both sides of the inspection track 1, and a dust cleaning assembly 5 being provided on the support assembly 2 and the moving assembly 3 for cleaning the inspection track 1;

[0035] The support assembly 2 includes a support frame 201, and four first wheel frames 210 distributed in a rectangular shape are installed on the top of the support frame 201. First rollers 211 are rotatably provided on the first wheel frames 210, and the first rollers 211 are in contact with the bottom end of the inspection track 1; the moving assembly 3 includes a transmission box 301, and two rotating shafts 306 and two rotating rods 308 are rotatably provided on the upper end of the transmission box 301, and the two rotating rods 308 are located between the two rotating shafts 306, and two second rollers 307 are fixedly installed on the rotating shaft 306, and the second rollers 307 are rotatably set on the upper surface of the inspection track 1, and a roller brush 310 is fixedly installed on the outer ring of the rotating rod 308, and the roller brush 310 is in contact with the upper surface of the inspection track 1;

[0036] The limiting assembly 4 includes a fixed plate 401, and the fixed plate 401 is fixedly installed on the top of the transmission box 301. Two support arms 403 are rotatably provided on the side of the fixed plate 401 close to the inspection track 1. A second wheel frame 404 is fixedly installed on the side of the support arm 403 close to the inspection track 1, and a third roller 405 is rotatably provided on the second wheel frame 404; the cleaning assembly 5 includes a protective tube 501, and the protective tube 501 is fixedly installed on the side of the transmission box 301 close to the inspection track 1. A first dust collection pipe 502 is fixedly installed inside the protective tube 501, a second dust collection pipe 504 is fixedly installed on the top of the protective tube 501, and the second dust collection pipe 504 is located at the bending part of the inspection track 1, a straight line brush 505 is fixedly installed inside the second dust collection pipe 504, and the straight line brush 505 is in contact with the outer side of the inspection track 1.

[0037] Several connecting plates 202 distributed in a straight line are fixedly installed on the top of the support frame 201, and drive shafts 203 are rotatably provided on the several connecting plates 202. Hexagonal columns 204 are fixedly installed at the centers of both ends of the drive shafts 203. A first gear 205 is fixedly installed on the outer ring of the drive shaft 203. A servo motor 207 is fixedly installed on one connecting plate 202, and a second gear 206 is fixedly installed on the output end of the servo motor 207, and the second gear 206 is meshed with the first gear 205.

[0038] By adopting the above technical solution, the servo motor 207 can drive the driving shaft 203 to rotate.

[0039] Four rectangularly distributed cylinders 209 are fixedly installed on the top of the support frame 201, and four first wheel frames 210 are rotatably set on the corresponding cylinders 209. Two groups of insertion rods 208 are fixedly installed on one side of the support frame 201 close to the two transmission boxes 301.

[0040] By adopting the above technical solution, the four first rollers 211 can move along the inspection track 1 and can deflect during the movement.

[0041] Two symmetrically distributed connecting brackets 302 are fixedly installed on the transmission box 301, and the two connecting brackets 302 are respectively slidably set on the two groups of plug rods 208 on one side of the support frame 201. A bidirectional screw 303 is rotatably provided on the connecting bracket 302, and the bidirectional screw 303 can slide inside the plug rod 208. Two splints 304 are threaded on the bidirectional screw 303, and the two splints 304 can contact the inner side of the plug rod 208, and the splints 304 can slide along the connecting bracket 302.

[0042] By adopting the above technical solution, the moving component 3 and the supporting component 2 can be connected and fixed.

[0043] A transmission shaft 305 is rotatably provided at the lower end of the transmission box 301, and two hexagonal columns 204 are slidably inserted into the centers of the two transmission shafts 305 respectively. The transmission shaft 305 and the two rotating shafts 306 are connected by a first synchronous belt and a first synchronous wheel. A third gear 309 is fixedly installed on each of the two rotating rods 308, and the two third gears 309 are engaged with each other. A rotating rod 308 and a rotating shaft 306 on one side of it are connected by a second synchronous belt and a second synchronous wheel.

[0044] By adopting the above technical solution, the driving shaft 203 can drive the rotating shaft 306 to rotate.

[0045] A limit cylinder 406 and two hinged seats 402 are fixedly installed on the side of the fixed plate 401 close to the inspection track 1, and the limit cylinder 406 is located between the two hinged seats 402, and the two hinged seats 402 are respectively hingedly connected to the two support arms 403 on the side away from the inspection track 1. A limit block 408 is slidingly provided inside the limit cylinder 406, and a limit rod 407 is fixedly installed on the side of the limit block 408 close to the inspection track 1, and the limit rod 407 slides through the limit cylinder 406, and an end block 410 is fixedly installed on the end of the limit rod 407 close to the inspection track 1, and a spring 409 is fixedly installed between the end block 410 and the fixed plate 401, and the spring 409 is slidably sleeved on the outer ring of the limit cylinder 406 and the limit rod 407.

[0046] By adopting the above technical solution, the spring 409 can support the end block 410.

[0047] Both ends of the end block 410 are hingedly connected to a connecting arm 411 , and a connecting rod 412 is fixedly installed on the other end of the connecting arm 411 , and the two connecting rods 412 are rotatably set on the two support arms 403 respectively.

[0048] By adopting the above technical solution, the movement of the end block 410 can drive the connecting arm 411 to deflect.

[0049] A first connecting pipe 503 is fixedly installed inside the protective tube 501, and the first dust suction pipe 502 and the second dust suction pipe 504 are connected through the first connecting pipe 503. A dust suction device 507 is fixedly installed on the top of the inner side of the support frame 201, and a second connecting pipe 506 is connected between the dust suction device 507 and the two first dust suction pipes 502; the roller brush 310 is located inside the protective tube 501 and on both sides of the first dust suction pipe 502. The distance between the first dust suction pipe 502, the second dust suction pipe 504 and the protective tube 501 and the surface of the inspection track 1 is 1 cm.

[0050] By adopting the above technical solution, the dust collection device 507 can collect and process dust through the first dust collection pipe 502 and the second dust collection pipe 504 , the first connecting pipe 503 and the second connecting pipe 506 .

[0051] A coal conveying trestle track inspection robot also includes an automatic dust cleaning device for the coal conveying trestle track inspection robot. The coal conveying trestle track inspection robot body is installed at the lower end of the inner part of the support frame 201.

[0052] Working Principle: When the present invention is used, the inspection track is installed inside the coal conveyor trestle, and then the moving component 3 and the supporting bracket 2 are installed on the inspection track 1;

[0053] Then, the positions of the moving assembly 3 and the supporting assembly 2 are adjusted so that the first roller 211 contacts the bottom end of the inspection track 1, and the third roller 405 of the limiting assembly 4 and the second roller 307 of the moving assembly 3 both contact the upper surface of the inspection track 1, and the roller brush 310 and the linear brush 505 also contact the upper surface of the inspection track 1, so that the spring 409 is in a compressed state;

[0054] Then, by rotating the bidirectional screw 303, the two clamping plates 304 on it move toward each other and contact the insertion rod 208, thereby connecting the moving component 3 and the supporting component 2 together and positioning them on the inspection track 1;

[0055] The servo motor 207 drives the second gear 206 to rotate. The rotation of the second gear 206 drives the first gear 205 to rotate. The rotation of the first gear 205 drives the driving shaft 203 to rotate. The rotation of the driving shaft 203 drives the two hexagonal columns 204 to rotate. The rotation of the hexagonal columns 204 drives the transmission shaft 305 to rotate.

[0056] The transmission shaft 305 is connected to the two rotating shafts 306 via a first synchronous belt and a first synchronous wheel, so that the rotation of the transmission shaft 305 can drive the two rotating shafts 306 to rotate in the same direction. The rotation of the rotating shaft 306 drives the second roller 307 thereon to rotate, so that the inspection robot can move on the inspection track 1;

[0057] The movement of the inspection robot is limited by the third roller 405 at the end of the support arm 403 rolling on the inspection track 1 and the spring 409 supporting the side of the support arm 403;

[0058] When the inspection robot moves to the bend of the inspection track 1, the inner side of the bend applies a force in the opposite direction to the third roller 405 in the travel direction, compressing the spring 409. The third roller 405 in the travel direction on the inner side of the bend is driven by the elastic force of the spring 409 to continue to fit with the inspection track 1. As the third roller 405 of the limiting assembly 4 completely enters the bend, the springs 409 of the two limiting assemblies 4 are used to limit the movement of the inspection robot. Through the above steps, the inspection robot can move more smoothly in line with the trajectory of the inspection track 1 when moving around the bend.

[0059] A rotating rod 308 is connected to a rotating shaft 306 on one side of it through a second synchronous belt and a second synchronous wheel, so that the rotation of the rotating shaft 306 can drive the rotation of a rotating rod 308, and the third gears 309 on the two rotating rods 308 are engaged with each other, so that the two rotating rods 308 rotate toward each other, thereby driving the roller brush 310 on them to rotate, and cooperating with the movement of the inspection robot to drive the linear brush 505 to move, so as to clean the upper surface of the inspection track 1, and use the dust suction device 507 to suck the dust into the inside of the dust suction device 507 through the first dust suction pipe 502, the first connecting pipe 503, the second dust suction pipe 504 and the second connecting pipe 506, so as to achieve the effect of automatic cleaning of the inspection track 1 and prevent dust from accumulating on the inspection track 1 or scattering inside the coal conveyor trestle.

[0060] Obviously, those skilled in the art may make various changes and modifications to the present invention without departing from the spirit and scope of the present invention. Thus, if such changes and modifications fall within the scope of the claims and their equivalents, the present invention is intended to include such changes and modifications.

Claims

1. An automatic dust cleaning device for a coal handling trestle track inspection robot, comprising an inspection track (1), characterized in that: The bottom end of the inspection track (1) is provided with a support assembly (2), and the support assembly (2) is provided with two symmetrically distributed moving assemblies (3) for driving the inspection robot to move. The moving assembly (3) is installed with a limit assembly (4) for limiting the position of the inspection robot during movement, and the two limit assemblies (4) are located on both sides of the inspection track (1). The support assembly (2) and the moving assembly (3) are provided with a dust cleaning assembly (5) for cleaning the inspection track (1); The support assembly (2) includes a support frame (201), and four first wheel frames (210) distributed in a rectangular shape are installed on the top of the support frame (201). The first wheel frames (210) are rotatably provided with first rollers (211), and the first rollers (211) are in contact with the bottom end of the inspection track (1); the moving assembly (3) includes a transmission box (301), and the upper end of the transmission box (301) is rotatably provided with two rotating shafts (306) and two rotating rods (308), and the two rotating rods (308) are located between the two rotating shafts (306), and two second rollers (307) are fixedly installed on the rotating shaft (306), and the second rollers (307) are rollingly arranged on the upper surface of the inspection track (1), and the outer ring of the rotating rod (308) is fixedly provided with a roller brush (310), and the roller brush (310) is in contact with the upper surface of the inspection track (1); The limiting assembly (4) includes a fixed plate (401), and the fixed plate (401) is fixedly mounted on the top of the transmission box (301). Two support arms (403) are rotatably mounted on one side of the fixed plate (401) close to the inspection track (1). A second wheel frame (404) is fixedly mounted on one side of the support arm (403) close to the inspection track (1). A third roller (405) is rotatably mounted on the second wheel frame (404). The dust cleaning assembly (5) includes a protective tube (501). The protective tube (501) is fixedly mounted on a side of the transmission box (301) close to the inspection track (1); a first dust suction pipe (502) is fixedly mounted inside the protective tube (501); a second dust suction pipe (504) is fixedly mounted on the top of the protective tube (501); the second dust suction pipe (504) is located at a bend of the inspection track (1); a linear brush (505) is fixedly mounted inside the second dust suction pipe (504), and the linear brush (505) contacts the outer side of the inspection track (1).

2. The automatic dust cleaning device for a coal handling trestle track inspection robot according to claim 1, characterized in that: A plurality of linearly distributed connecting plates (202) are fixedly mounted on the top of the support frame (201), a driving shaft (203) is rotatably mounted on a plurality of the connecting plates (202), a hexagonal column (204) is fixedly mounted at the center of both ends of the driving shaft (203), a first gear (205) is fixedly mounted on the outer ring of the driving shaft (203), a servo motor (207) is fixedly mounted on one of the connecting plates (202), a second gear (206) is fixedly mounted on the output end of the servo motor (207), and the second gear (206) is meshed with the first gear (205).

3. The automatic dust cleaning device for a coal handling trestle track inspection robot according to claim 1, characterized in that: Four rectangularly distributed cylinders (209) are fixedly mounted on the top of the support frame (201), and the four first wheel frames (210) are rotatably mounted on the corresponding cylinders (209). Two sets of insertion rods (208) are fixedly mounted on one side of the support frame (201) close to the two transmission boxes (301).

4. The automatic dust cleaning device for a coal handling trestle track inspection robot according to claim 3, characterized in that: Two symmetrically distributed connecting brackets (302) are fixedly mounted on the transmission box (301), and the two connecting brackets (302) are respectively slidably arranged on two groups of insertion rods (208) on one side of the support frame (201), a bidirectional screw (303) is rotatably provided on the connecting bracket (302), and the bidirectional screw (303) can slide inside the insertion rod (208), and two clamping plates (304) are threadedly provided on the bidirectional screw (303), and the two clamping plates (304) can contact the inner side of the insertion rod (208), and the clamping plates (304) can slide along the connecting bracket (302).

5. The automatic dust cleaning device for a coal handling trestle track inspection robot according to claim 1, characterized in that: The transmission box (301) is rotatably provided with a transmission shaft (305) at the lower end, and two hexagonal columns (204) are respectively slidably inserted into the centers of the two transmission shafts (305). The transmission shaft (305) and the two rotating shafts (306) are connected to each other through a first synchronous belt and a first synchronous wheel. A third gear (309) is fixedly mounted on each of the two rotating rods (308), and the two third gears (309) are meshed with each other. One of the rotating rods (308) and a rotating shaft (306) on one side thereof are connected to each other through a second synchronous belt and a second synchronous wheel.

6. The automatic dust cleaning device for a coal handling trestle track inspection robot according to claim 1, characterized in that: A limiting cylinder (406) and two hinged seats (402) are fixedly installed on one side of the fixed plate (401) close to the inspection track (1), and the limiting cylinder (406) is located between the two hinged seats (402). The two hinged seats (402) are respectively hingedly connected to the two support arms (403) on the side away from the inspection track (1). A limiting block (408) is slidably provided inside the limiting cylinder (406). A limiting rod (407) is fixedly installed on the side of the limiting block (408) close to the inspection track (1), and the limiting rod (407) slides through the limiting cylinder (406). An end block (410) is fixedly installed on one end of the limiting rod (407) close to the inspection track (1). A spring (409) is fixedly installed between the end block (410) and the fixed plate (401), and the spring (409) is slidably sleeved on the outer ring of the limiting cylinder (406) and the limiting rod (407).

7. The automatic dust cleaning device for a coal handling trestle track inspection robot according to claim 6, characterized in that: Both ends of the end block (410) are hingedly connected to connecting arms (411), and the other end of the connecting arm (411) is fixedly mounted with a connecting rod (412), and the two connecting rods (412) are rotatably arranged on the two support arms (403) respectively.

8. The automatic dust cleaning device for a coal handling trestle track inspection robot according to claim 1, characterized in that: A first connecting pipe (503) is fixedly installed inside the protective tube (501), and the first dust suction pipe (502) and the second dust suction pipe (504) are connected via the first connecting pipe (503). A dust suction device (507) is fixedly installed at the top end inside the support frame (201), and a second connecting pipe (506) is connected between the dust suction device (507) and the two first dust suction pipes (502).

9. The automatic dust cleaning device for a coal handling trestle track inspection robot according to claim 1, characterized in that: The roller brush (310) is located inside the protective tube (501) and on both sides of the first dust suction pipe (502). The distance between the first dust suction pipe (502), the second dust suction pipe (504), the protective tube (501) and the surface of the inspection track (1) is 1 cm.

10. A coal handling trestle track inspection robot, characterized in that: It comprises an automatic dust cleaning device for a coal conveyor trestle track inspection robot according to any one of claims 1 to 9, wherein the coal conveyor trestle track inspection robot body is installed at the lower end inside the support frame (201).

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