Belt cleaning device for coal mine

Abstract

The utility model relates to the technical field of belt cleaning, and discloses a belt cleaning device for a coal mine, which comprises four supports, a cleaning assembly, a material pushing assembly, an adjusting assembly and a knocking assembly, the cleaning assembly is arranged above the material pushing assembly, and the knocking assembly is arranged on the left side of the material pushing assembly. By arranging the material pushing assembly, the adjusting assembly and the knocking assembly, the position of the scraping plate is adjusted through the adjusting assembly so as to adapt to the widths of belts of different models, coal slime is pushed into the second material collecting box through the material pushing assembly, a discharging opening is prevented from being blocked through the knocking assembly, and the problem that a traditional belt cleaning device is often fixed and cannot be moved easily is solved. The problems that a traditional belt cleaning device generally does not have a recycling function on waste coal slag on a conveying belt, follow-up manual cleaning is needed, and time and labor are wasted are solved.

Description

TECHNICAL FIELD

[0001] The utility model belongs to the technical field of belt cleaning, especially relates to a belt cleaning device for coal mine. BACKGROUND

[0002] Coal mine will use belt conveyor in the process of mining and transporting coal, and the device has the advantages of small maintenance amount and relatively simple maintenance, and thus is favored by mining production and processing enterprises. However, in the process of coal transportation, part of the coal and coal powder will adhere to the belt. The adhering matters may fall off due to vibration and other factors in the process of belt rotation and be scattered below the belt conveyor, resulting in dust problem, and thus the belt needs to be cleaned.

[0003] The above-mentioned technology has the following problems: the traditional belt cleaning device is usually fixed, and it is difficult to adapt to different types of belts, resulting in low cleaning efficiency. The traditional belt cleaning device generally has no recycling function for the waste coal on the conveyor belt, and manual cleaning is required subsequently, which is time-consuming and laborious. UTILITY MODEL CONTENTS

[0004] In view of the problems in the prior art, the utility model provides a belt cleaning device for coal mine, which can overcome the above-mentioned problems or at least partially solve the above-mentioned problems.

[0005] The utility model is realized as follows: a belt cleaning device for coal mine, which comprises four supports, a cleaning assembly, a pushing assembly, an adjusting assembly and a knocking assembly. The cleaning assembly is arranged above the pushing assembly, and the knocking assembly is arranged on the left side of the pushing assembly. Two transmission rollers are rotatably connected to the opposite surfaces of the four supports. The two transmission rollers are connected by a belt. The adjusting assembly comprises an extrusion block, a first spring, a first fixed block, a sliding rod and a clamping block. The surface of the extrusion block is slidably connected with a first sliding block. One side of the extrusion block extends to the inner cavity of the first sliding block and is fixedly connected with one end of the first spring. The other end of the first spring is fixedly connected with the first fixed block. One end of the sliding rod is fixedly connected with the first fixed block. The other end of the sliding rod extends to the inner cavity of the extrusion block and is slidably connected with the extrusion block. The top of the clamping block is fixedly connected with the extrusion block.

[0006] In order to make the cleaning device adapt to the width of various types of belts, preferably, the adjusting assembly comprises an extrusion block, a first spring, a first fixed block, a sliding rod and a clamping block, the surface of the extrusion block is slidably connected with a first sliding block, one side of the extrusion block extends to the inner cavity of the first sliding block and is fixedly connected with one end of the first spring, the other end of the first spring is fixedly connected with the first fixed block, one end of the sliding rod is fixedly connected with the first fixed block, the other end of the sliding rod extends to the inner cavity of the extrusion block and is slidably connected with the extrusion block, the top of the clamping block is fixedly connected with the extrusion block, a clamping groove matched with the clamping block is formed in the side of the horizontal plate close to the extrusion block, a sliding groove is formed in the inner wall of the first sliding block, and sliding blocks are formed in the front and rear sides of the horizontal plate, the inner cavity of the sliding groove is slidably connected with the surface of the sliding blocks, one end of the horizontal plate is fixedly connected with a connecting frame, and the rear side of the connecting frame is fixedly connected with the support, the extrusion block is pressed to make the extrusion block with the clamping block leave the originally clamped clamping groove, the first sliding block and the scraper are moved to the appropriate position, and then the extrusion block is released, the clamping block is reset to the clamping groove and fixed by the first spring, the sliding rod plays a role in assisting the movement of the extrusion block, and the sliding blocks and the sliding groove make the first sliding block move stably, so as to adjust the cleaning device and make the cleaning device adapt to the width of various types of belts.

[0007] In order to effectively clean the belt, preferably, the cleaning assembly comprises a scraper, a first sliding block and a horizontal plate, one side of the scraper is closely attached to the belt, one side of the scraper is fixedly connected with the first sliding block, a sliding groove is formed in the inner wall of the first sliding block, sliding blocks are formed in the front and rear sides of the horizontal plate, the inner cavity of the sliding groove is slidably connected with the surface of the sliding blocks, one end of the horizontal plate is fixedly connected with a connecting frame, and the rear side of the connecting frame is fixedly connected with the support, the scraper is closely attached to the belt, and dirt on the surface of the belt can be effectively scraped off.

[0008] In order to make the waste coal ash on the belt be reused, preferably, the pushing assembly comprises a first motor, a lead screw and a pushing plate, the output end at the rear side of the first motor is fixedly connected with one end of the lead screw, the bottom of the first motor is fixedly connected with a first backing plate, the other end of the lead screw extends through the pushing plate and outwardly, the lead screw is threadedly linked with the pushing plate, the surface of the pushing plate is slidably connected with a first material collecting box, and the front side of the first material collecting box is fixedly connected with the first backing plate, the first motor drives the lead screw to rotate, and the rotation of the lead screw makes the pushing plate slowly move to the other end.

[0009] In order to prevent the coal slime from blocking in the feeding pipe, preferably, the knocking assembly comprises two second fixed blocks, a second spring, a rack, a striking column, a second motor and a missing gear, the bottom of the right second fixed block is fixedly connected with a sliding bin, the bottom of the left second fixed block is fixedly connected with a second sliding block, one end of the striking column is fixedly connected with the second sliding block, the two ends of the second spring are fixedly connected with the two second fixed blocks, one side of the rack is fixedly connected with the second sliding block, the rack is engaged with the missing gear, the front side of the missing gear is fixedly connected with the output end of the second motor, the missing gear is driven to rotate by the second motor, the missing gear drives the rack and the second sliding block to move in the sliding bin, and the second fixed block connected with the second sliding block pulls the spring straight, when the missing gear turns to the corner without teeth, the spring is quickly reset without pulling force, and the striking column is impacted to the feeding pipe to generate vibration, so that the coal slime is effectively prevented from blocking.

[0010] Preferably, the left side of the front support is fixedly connected with a third pad plate and a second pad plate, the right side of the second pad plate is fixedly connected with the support, the top of the third pad plate is fixedly connected with a third motor, one end of the front transmission roller penetrates through the support and is fixedly connected with the output end of the third motor, and the side close to the extrusion block of the horizontal plate is provided with a clamping groove matched with the clamping block.

[0011] Preferably, one side of the inner wall of the first material collecting box is fixedly connected with a sieve plate, the bottom of the first material collecting box is provided with a wastewater box, the bottom of the first material collecting box is in contact with the wastewater box, the bottom of the wastewater box is fixedly connected with a support column, the rear side of the first material collecting box is fixedly communicated with a feeding pipe, the front side of the feeding pipe is provided with a sealing plate, one side of the sealing plate penetrates through one side of the first material collecting box and extends to the inner wall of the first material collecting box, the surface of the sealing plate is in sliding connection with the first material collecting box, the bottom of the feeding pipe is provided with a second material collecting box, the right side of the feeding pipe is provided with a water tank, the front side of the water tank is provided with a water pump, and the water suction end of the water pump extends to the inner cavity of the water tank and is fixedly communicated with the water tank.

[0012] Preferably, the bottom of the second motor is fixedly connected with a second pad plate, the surface of the second sliding block is in sliding connection with the inner cavity of the sliding bin, the front side and the top of the sliding bin are both provided with a stroke groove, the right side of the feeding pipe is provided with a water tank, the front side of the water tank is provided with a water pump, and the water suction end of the water pump extends to the inner cavity of the water tank and is fixedly communicated with the water tank.

[0013] Preferably, the bottom of the water pump is fixedly connected with a supporting seat, the water delivery end of the water pump is fixedly communicated with a first water pipe, the other end of the first water pipe extends to the inner cavity of the first aggregate box and is fixedly communicated with the first aggregate box, one side of the sieve plate is fixedly connected with a second water pipe, one end of the second water pipe penetrates through one side of the wastewater box and extends to the inner cavity of the wastewater box and is fixedly communicated with the wastewater box, a certain amount of water is injected into the first aggregate box through the water pump, the cinder in the first aggregate box is mixed with water, and the coal slurry, one of the raw materials of the honeycomb briquette, can be formed, the water valve on the second water pipe is opened, and the water flow is discharged into the wastewater box, the sealing plate well blocks the cinder, the water and the discharge pipe, the sealing plate is removed, and the pushing assembly pushes the coal slurry into the discharge pipe and into the second aggregate box.

[0014] Compared with the prior art, the utility model has the advantages that:

[0015] The utility model discloses a pushing assembly, adjusting assembly and knocking assembly are set up, the position of the scraper is adjusted through adjusting assembly, so as to adapt to the width of different models of belt, the coal slurry is pushed into the second aggregate box through the pushing assembly, and the knocking assembly prevents the blockage of the discharge port, solves the problem that the traditional belt cleaning device is often fixed, is difficult to adapt to different models of belt, leads to low cleaning efficiency, and the traditional belt cleaning device generally does not have the recycling function of the waste cinder on the conveying belt, and the subsequent manual cleaning is time -consuming and labor -intensive. ACCURACY OF DRAWINGS

[0016] Figure 1 It is the three -dimensional structure schematic diagram of the utility model embodiment provides a kind of belt cleaning device for coal mine;

[0017] Figure 2 It is the three -dimensional structure schematic diagram of the utility model embodiment provides cleaning assembly;

[0018] Figure 3 It is the three -dimensional structure schematic diagram of the utility model embodiment provides adjusting assembly;

[0019] Figure 4 It is the three -dimensional structure schematic diagram of the utility model embodiment provides water pump water tank;

[0020] Figure 5 It is the three -dimensional structure schematic diagram of the utility model embodiment provides pushing assembly;

[0021] Figure 6 It is the three -dimensional structure schematic diagram of the utility model embodiment provides knocking assembly.

[0022] In the figure: 1, belt; 2, transmission roller; 3, support; 4, cleaning assembly; 401, scraper; 402 first sliding block; 403, cross plate; 5, pushing assembly; 501, first motor; 502, screw rod; 503, pushing plate; 6, knocking assembly; 601, second fixed block; 602, second spring; 603, rack; 604, impact column; 605, second motor; 606, missing gear; 7, adjusting assembly; 701, extrusion block; 702, first spring; 703, first fixed block; 704, sliding rod; 705, clamping block; 8, connecting frame; 9, water tank; 10, water pump; 11, support seat; 12, first water pipe; 13, sieve plate; 14, second water pipe; 15, first material collecting box; 16, wastewater box; 17, first backing plate; 18, second material collecting box; 19, discharging pipe; 20, sealing plate; 21, support column; 22, second sliding block; 23, sliding bin; 24, second backing plate; 25, chute; 26, sliding block; 27, clamping groove; 28, third motor; 29, third backing plate. DETAILED DESCRIPTION

[0023] In order to further understand the application content, characteristics and effects of the utility model, the following examples are given, and the detailed description is given as follows in combination with the drawings.

[0024] The structure of the utility model will be described in detail below in combination with the drawings.

[0025] As Figures 1 to 6 shown, the utility model embodiment provides a belt cleaning device for coal mine, including four supports 3, cleaning assembly 4, pushing assembly 5, adjusting assembly 7 and knocking assembly 6, cleaning assembly 4 is set in the upper of pushing assembly 5, knocking assembly 6 is set in the left side of pushing assembly 5, two transmission rollers 2 are rotatably connected to the opposite surface of four supports 3, two transmission rollers 2 are drivenly connected through belt 1, adjusting assembly 7 includes extrusion block 701, first spring 702, first fixed block 703, sliding rod 704 and clamping block 705, the surface of extrusion block 701 is slidably connected with first sliding block, one side of extrusion block 701 extends to the inner chamber of first sliding block and is fixedly connected with one end of first spring 702, the other end of first spring 702 is fixedly connected with first fixed block 703, one end of sliding rod 704 is fixedly connected with first fixed block 703, the other end of sliding rod 704 extends to the inner chamber of extrusion block 701 and is slidably connected with clamping block 705, the top of clamping block 705 is fixedly connected with extrusion block 701.

[0026] In order to make the cleaning device can adapt to the width of a plurality of types of belt 1, adjusting assembly 7 includes extrusion block 701, first spring 702, first fixed block 703, slide rod 704 and clamping block 705, the surface of extrusion block 701 is slidably connected with first sliding block, one side of extrusion block 701 extends to the inner cavity of first sliding block and is fixedly connected with one end of first spring 702, the other end of first spring 702 is fixedly connected with first fixed block 703, one end of slide rod 704 is fixedly connected with first fixed block 703, the other end of slide rod 704 extends to the inner cavity of extrusion block 701 and is slidably connected with clamping block 705, the top of clamping block 705 is fixedly connected with extrusion block 701, the first sliding block of cross plate 402;403 is provided with clamping groove 27 close to one side of extrusion block 701, the inner wall of first sliding block is provided with sliding groove 25, the front and back sides of the first sliding block of cross plate 402;403 are provided with sliding block 26, the inner cavity of sliding groove 25 is slidably connected with the surface of sliding block 26, one end of the first sliding block of cross plate 402;403 is fixedly connected with connecting frame 8, the rear side of connecting frame 8 is fixedly connected with support 3, by pressing extrusion block 701, extrusion block 701 takes clamping block 705 away from the originally clamped clamping groove 27, first sliding block and scraper 401 are moved to the appropriate position, and then extrusion block 701 is released, first spring 702 makes clamping block 705 reset to clamping groove 27 and is fixed, slide rod 704 plays the role of assisting extrusion block 701 to move, sliding block 26 and sliding groove 25 make the first sliding block move stably, so that the cleaning device is adjusted to adapt to the width of a plurality of types of belt 1.

[0027] In order to effectively clean the belt 1, the cleaning assembly 4 includes the scraper 401, the first sliding block and the first sliding block of cross plate 402;403, one side of the scraper 401 is closely attached to the belt 1, one side of the scraper 401 is fixedly connected with the first sliding block, the inner wall of the first sliding block is provided with sliding groove 25, the front and back sides of the first sliding block of cross plate 402;403 are provided with sliding block 26, the inner cavity of sliding groove 25 is slidably connected with the surface of sliding block 26, one end of the first sliding block of cross plate 402;403 is fixedly connected with connecting frame 8, the rear side of connecting frame 8 is fixedly connected with support 3, by closely attaching the scraper 401 to the belt 1, the dirt on the surface of the belt 1 can be effectively scraped off.

[0028] In order to make the waste coal on the belt 1 secondary utilization, push material assembly 5 includes first motor 501, screw rod 502 and push material plate 503, the output end of first motor 501 rear side is fixedly connected with one end of screw rod 502, the bottom of first motor 501 is fixedly connected with first pad plate 17, the other end of screw rod 502 is through push material plate 503 and extends outward, screw rod 502 is threadedly linked with push material plate 503, the surface of push material plate 503 is slidably connected with first material collecting box 15, the front side of first material collecting box 15 is fixedly connected with first pad plate 17, first motor 501 drives screw rod 502 to rotate, and screw rod 502 rotates and makes push material plate 503 slowly move to the other end.

[0029] In order to prevent the coal slime from being blocked in the downcomer 19, the knocking assembly 6 includes two second fixed blocks 601, a second spring 602, a rack 603, a knocking column 604, a second motor 605 and a missing tooth gear 606, the bottom of the right second fixed block 601 is fixedly connected with the sliding bin 23, the bottom of the left second fixed block 601 is fixedly connected with the second sliding block 22, one end of the knocking column 604 is fixedly connected with the second sliding block 22, the two ends of the second spring 602 are fixedly connected with the two second fixed blocks 601, one side of the rack 603 is fixedly connected with the second sliding block 22, the rack 603 is engaged with the missing tooth gear 606, the front side of the missing tooth gear 606 is fixedly connected with the output end of the second motor 605, the missing tooth gear 606 is driven to rotate by the second motor 605, the missing tooth gear 606 drives the rack 603 and the second sliding block 22 to move in the sliding bin 23, and the second fixed block 601 connected with the second sliding block is pulled straight, when the missing tooth gear 606 turns to the toothless corner, the spring is reset rapidly without pulling force, and the knocking column 604 is knocked to the downcomer 19 to produce vibration, which can effectively prevent the coal slime from being blocked.

[0030] The left side of the front side support 3 is fixedly connected with a third pad plate 29 and a second pad plate 24, the right side of the second pad plate 24 is fixedly connected with the support 3, the top of the third pad plate 29 is fixedly connected with a third motor 28, one end of the front side transmission roller 2 is fixedly connected with the output end of the third motor 28 through the support 3, the first sliding block 403 of the horizontal plate 402 is close to one side of the extrusion block 701, and the clamping groove 27 matched with the clamping block 705 is formed.

[0031] The inner wall of the first aggregate box 15 is fixedly connected with a sieve plate 13, the bottom of the first aggregate box 15 is provided with a waste water box 16, the bottom of the first aggregate box 15 is in contact with the waste water box 16, the bottom of the waste water box 16 is fixedly connected with a support column 21, the rear side of the first aggregate box 15 is fixedly communicated with a discharging pipe 19, the front side of the discharging pipe 19 is provided with a sealing plate 20, one side of the sealing plate 20 penetrates through one side of the first aggregate box 15 and extends to the inner wall of the first aggregate box 15, the surface of the sealing plate 20 is in sliding connection with the first aggregate box 15, the bottom of the discharging pipe 19 is provided with a second aggregate box 18, the right side of the discharging pipe 19 is provided with a water tank 9, the front side of the water tank 9 is provided with a water pump 10, and the water suction end of the water pump 10 extends to the inner cavity of the water tank 9 and is fixedly communicated with the water tank 9.

[0032] The bottom of the second motor 605 is fixedly connected with a second backing plate 24, the surface of the second sliding block 22 is in sliding connection with the inner cavity of the sliding bin 23, the front side and the top of the sliding bin 23 are both provided with a stroke groove, the right side of the discharging pipe 19 is provided with a water tank 9, the front side of the water tank 9 is provided with a water pump 10, and the water suction end of the water pump 10 extends to the inner cavity of the water tank 9 and is fixedly communicated with the water tank 9.

[0033] The bottom of the water pump 10 is fixedly connected with a support seat 11, the water delivery end of the water pump 10 is fixedly communicated with a first water pipe 12, the other end of the first water pipe 12 extends to the inner cavity of the first aggregate box 15 and is fixedly communicated with the first aggregate box 15, one side of the sieve plate 13 is fixedly connected with a second water pipe 14, one end of the second water pipe 14 penetrates through one side of the waste water box 16 and extends to the inner cavity of the waste water box 16 and is fixedly communicated with the waste water box 16, a certain amount of water is injected into the first aggregate box 15 through the water pump 10, the cinder in the first aggregate box 15 is mixed with water, and the coal slurry, which is one of the raw materials of the honeycomb briquette, can be formed, the water valve on the second water pipe 14 is opened, and the water flow is discharged into the waste water box 16, the sealing plate 20 well blocks the cinder, the water and the discharging pipe 19, the sealing plate 20 is removed, and the coal slurry is pushed into the discharging pipe 19 by the pushing assembly 5 and enters the second aggregate box 18.

[0034] The working principle of the utility model is as follows:

[0035] In use, the third motor 28 drives the transmission roller 2 to rotate, and the transmission roller 2 drives the belt 1 to transmit; when it is needed to adjust the position of the scraper 401, the pressing block 701 is pressed to make the pressing block 701 take the clamping block 705 away from the originally clamped clamping groove 27, the first sliding block and the scraper 401 are moved to the appropriate position, and then the pressing block 701 is released, the first spring 702 makes the clamping block 705 reset to the clamping groove 27 to be fixed, the sliding rod 704 plays a role in assisting the movement of the pressing block 701, and the sliding block 26 sliding groove 25 makes the first sliding block move stably, so that the cleaning device is adjusted to adapt to the width of various types of belts 1; a certain amount of water is injected into the first collecting box 15 through the water pump 10, so that the cinder in the first collecting box 15 is mixed with water to form coal slurry, which is one of the raw materials of honeycomb briquette, the water valve on the second water pipe 14 is opened, and the water flow is discharged into the waste water box 16, the sealing plate 20 well blocks the cinder and water from the discharge pipe 19, the sealing plate 20 is removed, the first motor 402 is started, the first sliding block 501 drives the lead screw 502 to rotate, the lead screw 502 rotates to make the pushing plate 503 slowly move to the other end to push the coal slurry into the discharge pipe 19 and into the second collecting box 18, the second motor 605 drives the missing gear 606 to rotate, the missing gear 606 drives the rack 603 and the second sliding block 22 to move in the sliding bin 23, and at the same time, the second fixed block 601 connected with the second sliding block 22 pulls the second spring 602 straight, when the missing gear 606 rotates to the corner without teeth, the second spring 602 is reset without tension, and the impact column 604 impacts the discharge pipe 19 to generate vibration, which can effectively prevent the coal slurry from being blocked.

[0036] It should be noted that the relational terms herein such as first and second and the like are used solely to distinguish one entity or action from another, without necessarily requiring or implying any such actual relationship or order between such entities or actions. Moreover, the terms "comprises", "comprising", or any other variations thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but can include other elements not expressly listed or inherent to such process, method, article, or apparatus.

[0037] The above only describes the preferred embodiments of the present application, and is not intended to limit the present application in any form. Although the preferred embodiments of the present application have been disclosed as above, they are not intended to limit the present application, and any person skilled in the art can make modifications without departing from the technical solution of the present application.

Claims

1. A belt cleaning device for coal mines, comprising four supports (3), a cleaning assembly (4), a pushing assembly (5), an adjusting assembly (7) and a knocking assembly (6), the cleaning assembly (4) being disposed above the pushing assembly (5), the knocking assembly (6) being disposed to the left of the pushing assembly (5), characterized in that: Two transmission rollers (2) are rotationally connected to opposite faces of the four supports (3), the two transmission rollers (2) are drivingly connected through a belt (1), the adjusting assembly (7) comprises an extrusion block (701), a first spring (702), a first fixed block (703), a sliding rod (704) and a clamping block (705), a first sliding block (402) is slidably connected to a surface of the extrusion block (701), one side of the extrusion block (701) extends to the inner cavity of the first sliding block (402) and is fixedly connected with one end of the first spring (702), the other end of the first spring (702) is fixedly connected with the first fixed block (703), one end of the sliding rod (704) is fixedly connected with the first fixed block (703), the other end of the sliding rod (704) extends to the inner cavity of the extrusion block (701) and is slidably connected with the extrusion block (701), and the top of the clamping block (705) is fixedly connected with the extrusion block (701).

2. A belt cleaning device for a coal mine as claimed in claim 1, characterised in that: The cleaning assembly (4) comprises a scraper (401), a first sliding block (402) and a cross plate (403), one side of the scraper (401) is closely attached to the belt (1), one side of the scraper (401) is fixedly connected with the first sliding block (402), a sliding groove (25) is formed in the inner wall of the first sliding block (402), sliding blocks (26) are formed on the front and back of the cross plate (403), the inner cavity of the sliding groove (25) is slidably connected with the surface of the sliding block (26), and one end of the cross plate (403) is fixedly connected with a connecting frame (8), and the rear side of the connecting frame (8) is fixedly connected with the support (3).

3. A belt cleaning device for a coal mine as claimed in claim 2, characterised in that: The pushing assembly (5) comprises a first motor (501), a lead screw (502) and a pushing plate (503), the output end at the rear side of the first motor (501) is fixedly connected with one end of the lead screw (502), the bottom of the first motor (501) is fixedly connected with a first backing plate (17), the other end of the lead screw (502) penetrates through the pushing plate (503) and extends outward, the lead screw (502) is threadedly linked with the pushing plate (503), and the surface of the pushing plate (503) is slidably connected with a first material collecting box (15). The front side of the first material collecting box (15) is fixedly connected with the first backing plate (17).

4. A belt cleaning device for a coal mine as claimed in claim 3, characterised in that: The knocking assembly (6) comprises two second fixed blocks (601), a second spring (602), a rack (603), a knocking column (604), a second motor (605) and a toothless gear (606), the bottom of the second fixed block (601) on the right side is fixedly connected with a sliding bin (23), the bottom of the second fixed block (601) on the left side is fixedly connected with a second sliding block (22), one end of the knocking column (604) is fixedly connected with the second sliding block (22), the two ends of the second spring (602) are fixedly connected with the two second fixed blocks (601), one side of the rack (603) is fixedly connected with the second sliding block (22), the rack (603) is engaged with the toothless gear (606), and the front side of the toothless gear (606) is fixedly connected with the output end of the second motor (605).

5. A belt cleaning device for a coal mine as claimed in claim 4, characterised in that: The left side of the front side of the support (3) is fixedly connected with a third pad plate (29) and a second pad plate (24), the right side of the second pad plate (24) is fixedly connected with the support (3), the top of the third pad plate (29) is fixedly connected with a third motor (28), one end of the transmission roller (2) penetrates through the support (3) and is fixedly connected with the output end of the third motor (28), and the side close to the extrusion block (701) of the cross plate (403) is provided with a clamping groove (27) matched with the clamping block (705).

6. A belt cleaning device for a coal mine as claimed in claim 5, characterised in that: The inner wall of the first aggregate box (15) is fixedly connected with a sieve plate (13), the bottom of the first aggregate box (15) is provided with a wastewater box (16), the bottom of the first aggregate box (15) is in contact with the wastewater box (16), the bottom of the wastewater box (16) is fixedly connected with a support column (21), the rear side of the first aggregate box (15) is fixedly connected with a discharging pipe (19), the front side of the discharging pipe (19) is provided with a sealing plate (20), one side of the sealing plate (20) penetrates through one side of the first aggregate box (15) and extends to the inner wall of the first aggregate box (15), and the surface of the sealing plate (20) is in sliding connection with the first aggregate box (15).

7. A belt cleaning device for a coal mine as claimed in claim 6, characterised in that: The bottom of the second motor (605) is fixedly connected with a second pad plate (24), the surface of the second sliding block (22) is in sliding connection with the inner cavity of the sliding bin (23), the front side and the top of the sliding bin (23) are provided with stroke grooves, the right side of the discharging pipe (19) is provided with a water tank (9), the front side of the water tank (9) is provided with a water pump (10), and the water suction end of the water pump (10) extends to the inner cavity of the water tank (9) and is fixedly connected with the water tank (9).

8. A belt cleaning device for a coal mine as claimed in claim 7, characterised in that: The bottom of the water pump (10) is fixedly connected with a support seat (11), the water delivery end of the water pump (10) is fixedly connected with a first water pipe (12), the other end of the first water pipe (12) extends to the inner cavity of the first aggregate box (15) and is fixedly connected with the first aggregate box (15), one side of the sieve plate (13) is fixedly connected with a second water pipe (14), one end of the second water pipe (14) penetrates through one side of the wastewater box (16) and extends to the inner cavity of the wastewater box (16) and is fixedly connected with the wastewater box (16), and the second water pipe (14) is provided with a water valve.

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