Cleaning device for wet coal adhered to coal mining conveying belt

Abstract

The utility model discloses a coal mining conveying belt adhered wet coal cleaning device which comprises a left support and a right support which are arranged on the left side and the right side of a conveying belt respectively, the left support and the right support are connected through at least two transverse rods, and the transverse rods are horizontally arranged in the left-right direction and located between the upper half range and the lower half range of the conveying belt. A coal scraping mechanism and a brushing mechanism which are located below the lower half range of the conveying belt are arranged between the lower portion of the left support and the lower portion of the right support, a left anti-deviation mechanism in rolling connection with the left side edge of the conveying belt is arranged on the left side of the transverse rod, and a right anti-deviation mechanism in rolling connection with the right side edge of the conveying belt is arranged on the right side of the transverse rod. The coal conveyor not only has the function of cleaning coal adhered to the conveying belt, but also has the function of correcting the deviation of the conveying belt, so that the coal conveying efficiency is improved, the service life of the conveying belt is prolonged, the power load of the coal conveyor is reduced, and meanwhile, the adhered coal is collected.

Description

Technical Field

[0001] The utility model belongs to the technical field of coal mining, and particularly relates to a device for cleaning wet coal adhered to a coal mining conveyor belt. Background Art

[0002] The coal mined from the fully mechanized working face in underground coal mines is transported outwards via coal conveyors. Since the coal usually contains a lot of moisture after mining, during the transportation process through the coal conveyor, the surface of the conveyor belt is very humid due to the high humidity during coal mining, and coal is easily adhered to the conveyor belt during the return journey. This not only increases the weight of the conveyor belt during the return journey, thereby increasing the power load of the coal conveyor and increasing costs, but also during the return journey, some coal adhered to the conveyor belt will fall, making it difficult to clean and collect, and increasing the workload of workers. In addition, if the adhered coal is not cleaned, it will continue to affect the transportation capacity of the next cycle of the coal conveyor during the circulation process. In addition, the conveyor belt of the current underground coal conveyor deviates at the beginning of the return journey. Therefore, it is urgent to clean the coal adhered to the conveyor belt and correct the deviation of the conveyor belt. Utility Model Content

[0003] In order to solve the above technical problems existing in the prior art, the utility model provides a device for cleaning wet coal adhered to a coal mining conveyor belt, which can simultaneously correct the deviation of the conveyor belt.

[0004] In order to solve the above technical problems, the utility model adopts the following technical solutions: a device for cleaning wet coal adhered to a coal mining conveyor belt, comprising a left bracket and a right bracket respectively arranged on the left and right sides of the conveyor belt, the left bracket and the right bracket being connected by at least two cross bars, the cross bars being arranged horizontally along the left and right directions and being located between the upper and lower halves of the conveyor belt, a coal scraping mechanism and a brushing mechanism located below the lower half of the conveyor belt being provided between the lower parts of the left bracket and the right bracket, a left anti-deviation mechanism being provided on the left side of the cross bar being rollingly connected to the left side of the conveyor belt, and a right anti-deviation mechanism being provided on the right side of the cross bar being rollingly connected to the right side of the conveyor belt.

[0005] The left bracket and the right bracket have the same structure, both of which include three columns arranged at intervals along the front-to-back direction, and three cross bars arranged at intervals along the front-to-back direction. The upper end of the middle column is connected to the end of the middle cross bar, the rear side of the upper end of the front column is connected to the end of the front cross bar through the front connecting frame, and the front side of the upper end of the rear column is connected to the end of the rear cross bar through the rear connecting frame. A support plate is horizontally provided at the lower end of each column, and the support plate is fixed to the tunnel floor by expansion bolts.

[0006] There are two coal scraping mechanisms, which have the same structure and are respectively arranged on the front sides of the two front columns and the front sides of the two middle columns;

[0007] The cam is connected to the upper and lower ends of the conveyor belt by a toothed connection, and the toothed connection is connected to the upper and lower ends of the conveyor belt by a toothed connection.

[0008] A first flexible dustproof sleeve is connected between the rear end of the coal scraping internal threaded pipe and the front end of the coal scraping internal threaded pipe to cover the coal scraping middle screw and the first handle driving rod.

[0009] There are two brushing mechanisms, which have the same structure and are respectively arranged on the rear sides of the two rear columns and the rear sides of the two middle columns;

[0010] The two brush sweeping adjustment rods have the same structure and are symmetrically arranged on the left and right sides. The brush sweeping adjustment rods are located above the brush sweeping hinge support and each include a front brush sweeping internal threaded sleeve, a middle brush sweeping screw and a rear brush sweeping internal threaded sleeve. The front end of the front brush sweeping internal threaded sleeve is hinged to the column through a second front hinge, and the rear end of the rear brush sweeping internal threaded sleeve is hinged to the brush sweeping plate through a second rear hinge. The internal threads of the front brush sweeping internal threaded sleeve and the rear brush sweeping internal threaded sleeve have opposite rotation directions. The front end of the middle brush sweeping screw extends into and is threadedly connected to the front brush sweeping internal threaded sleeve, and the rear end of the middle brush sweeping screw extends into and is threadedly connected to the rear brush sweeping internal threaded sleeve. A second handle driving rod is provided in the middle of the middle brush sweeping screw.

[0011] A second flexible dust-proof sleeve is connected between the rear end of the internal threaded sleeve before brushing and the front end of the internal threaded sleeve after brushing to cover the middle screw rod of brushing and the second handle driving rod.

[0012] The left anti-deviation mechanism and the right anti-deviation mechanism have the same structure and are symmetrically arranged on the left and right sides, both of which include a rectangular frame. Three connecting sleeves are fixedly provided in the middle of the rectangular frame along the front-to-back direction and are respectively sleeved on the three cross bars. The cross bars are threaded with fastening nuts for positioning and tightening the left and right ends of the connecting sleeves. At least two upper vertical rods are fixedly connected to the top of the rectangular frame, and the upper vertical rods are rotatably connected to the upper limit rollers that are rollingly connected to the upper half edge of the conveyor belt. At least two lower vertical rods are fixedly connected to the bottom of the rectangular frame, and the lower vertical rods are rotatably connected to the lower limit rollers that are rollingly connected to the lower half edge of the conveyor belt.

[0013] By adopting the above technical solution, compared with the prior art, the present invention has the following technical effects:

[0014] 1) After the upper half of the conveyor belt turns to the lower half, the coal adhering to the bottom surface of the lower half of the conveyor belt is scraped off twice and then brushed twice. There is no coal on the return conveyor belt, the weight of the conveyor belt is reduced, the power load of the coal conveyor is reduced, and the adhering coal is also collected.

[0015] 2) The upper front side of the coal scraper plate will be worn after scraping coal for a long time, and a gap will be generated between the upper front side of the coal scraper plate and the bottom surface of the lower half of the conveyor belt, affecting the coal scraping effect. At this time, the first handle drive rod can be rotated to drive the coal scraper screw to rotate. Since the internal threads of the internal threaded casing before scraping coal and the internal threaded pipe after scraping coal are rotated in opposite directions, the coal scraper adjustment rod will be shortened, and the upper front side of the coal scraper plate will be rotated upward with the coal scraper hinge support to contact the bottom surface of the lower half of the conveyor belt. The two are only in contact and there is no mutual pressure, which avoids wear on the conveyor belt.

[0016] 3) The brush on the upper rear side of the brush plate will wear out after brushing for a long time, and a gap will be generated between the upper side of the brush and the bottom surface of the lower half of the conveyor belt, affecting the brushing effect. At this time, the second handle drive rod can be rotated to drive the brushing screw to rotate. Since the internal threads of the internal threaded sleeve before brushing and the internal threaded sleeve after brushing are rotated in opposite directions, the brush adjustment rod will be shortened. The upper rear side of the brush is rotated upward with the brush hinge support to contact the bottom surface of the lower half of the conveyor belt. There is a certain pressure between the brush and the bottom surface of the lower half of the conveyor belt to ensure the brushing effect.

[0017] 4) The left and right anti-runaway mechanisms can be adjusted in their position on the crossbar by adjusting the retaining nuts. First, loosen the retaining nuts, move the rectangular frame, and allow the connecting sleeve to move left or right along the crossbar. Once properly adjusted, tighten the retaining nuts on each sleeve to compress the sleeve, thereby correcting the conveyor belt's deviation. Not only can the distance between the left and right anti-runaway mechanisms be adjusted to accommodate conveyor belts of varying widths, but the left or right anti-runaway mechanism can also be adjusted individually for optimal correction, ensuring uniform friction between the conveyor belt and pulley in both directions.

[0018] 5) The first and second flexible dust boots prevent dust from adhering to the middle screw, ensuring the flexibility of the scraper and brusher middle screws during rotation. The first and second flexible dust boots are flexible so that they do not affect the rotation of the first and second handle drive rods.

[0019] To sum up, the utility model not only has the function of cleaning the coal adhered to the conveyor belt, but also has the function of correcting the conveyor belt. The coal scraping mechanism, the brushing mechanism, the left anti-deviation mechanism and the right anti-deviation mechanism can be easily adjusted to improve the coal cleaning and deviation correction effects, thereby improving the coal transportation efficiency, extending the service life of the conveyor belt, reducing the power load of the coal conveyor, and also collecting the adhered coal. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0021] Figure 2 yes Figure 1 Side structural diagram of the center left anti-deviation mechanism and the center right anti-deviation mechanism;

[0022] Figure 3 yes Figure 1 Enlarged view of part A in the middle. DETAILED DESCRIPTION

[0023] The following is a further detailed description of the embodiments of the present invention in conjunction with the accompanying drawings and examples.

[0024] Figure 1 、 Figure 2 and Figure 3As shown, the utility model of the device for cleaning wet coal adhered to the coal mining conveyor belt comprises a left bracket and a right bracket respectively arranged on the left and right sides of the conveyor belt 1, the left bracket and the right bracket are connected by at least two cross bars 2, the cross bar 2 is horizontally arranged in the left and right directions and is located between the upper half and the lower half of the conveyor belt 1, and a coal scraping mechanism 3 and a brushing mechanism 4 located below the lower half of the conveyor belt 1 are provided between the lower part of the left bracket and the lower part of the right bracket, a left anti-deviation mechanism is provided on the left side of the cross bar 2 and is rollingly connected to the left side of the conveyor belt 1, and a right anti-deviation mechanism is provided on the right side of the cross bar 2 and is rollingly connected to the right side of the conveyor belt 1.

[0025] The left bracket and the right bracket have the same structure, both of which include three columns 5 arranged at intervals along the front-to-back direction. There are three cross bars 2, which are arranged at intervals along the front-to-back direction. The upper end of the middle column 5 is connected to the end of the middle cross bar 2, the rear side of the upper end of the front column 5 is connected to the end of the front cross bar 2 through the front connecting frame 6, and the front side of the upper end of the rear column 5 is connected to the end of the rear cross bar 2 through the rear connecting frame 7. A support plate 8 is horizontally provided at the lower end of each column 5, and the support plate 8 is fixed to the tunnel floor by expansion bolts.

[0026] There are two coal scraping mechanisms 3, which have the same structure and are respectively arranged on the front sides of the two front columns 5 and the front sides of the two middle columns 5;

[0027] Each coal scraping mechanism 3 includes a coal scraping plate 9 and two coal scraping adjustment rods. The coal scraping plate 9 is tilted and arranged with the front higher and the rear lower. The front side of the coal scraping plate 9 contacts the lower surface of the lower half of the conveyor belt 1. The left and right sides of the rear side of the coal scraping plate 9 are respectively hinged to the left column 5 and the right column 5 through a coal scraping hinge support 10; the two coal scraping adjustment rods have the same structure and are arranged symmetrically. The coal scraping adjustment rods are located above the coal scraping hinge support 10 and each includes a front internal threaded sleeve 11 for scraping coal, a middle screw rod 12 for scraping coal and a rear internal threaded pipe 11 for scraping coal. 3. The front end of the internal threaded sleeve 11 before coal scraping is hinged to the coal scraping plate 9 through the first front hinge 14, and the rear end of the internal threaded pipe 13 after coal scraping is hinged to the column 5 through the first rear hinge 15. The internal threads of the internal threaded sleeve 11 before coal scraping and the internal threaded pipe 13 after coal scraping are rotated in opposite directions. The front end of the coal scraping screw 12 is inserted into and threadedly connected to the internal threaded sleeve 11 before coal scraping, and the rear end of the coal scraping screw 12 is inserted into and threadedly connected to the internal threaded sleeve 13 after coal scraping. A first handle driving rod 16 is provided in the middle of the coal scraping screw 12.

[0028] A first flexible dust cover 17 is connected between the rear end of the coal scraping internal threaded pipe 13 and the front end of the coal scraping internal threaded pipe 13 to cover the coal scraping middle screw 12 and the first handle driving rod 16 .

[0029] There are two brushing mechanisms 4, which have the same structure and are respectively arranged on the rear sides of the two rear columns 5 and the rear sides of the two middle columns 5;

[0030] Each brush sweeping mechanism 4 includes a brush sweeping plate 18 and two brush sweeping adjustment rods. The brush sweeping plate 18 is tilted with a low front and a high rear. The rear side of the brush sweeping plate 18 is fixedly connected with a brush 20 in contact with the lower surface of the lower half of the conveyor belt 1. The left and right sides of the front side of the brush sweeping plate 18 are respectively hinged to the left column 5 and the right column 5 through a brush sweeping hinge support 21; the two brush sweeping adjustment rods have the same structure and are symmetrically arranged on the left and right. The brush sweeping adjustment rods are located above the brush sweeping hinge support 21 and include a front internal threaded sleeve 22 for brush sweeping, a middle screw 23 for brush sweeping and a rear internal threaded sleeve 22 for brush sweeping. The internal threaded sleeve 24, the front end of the internal threaded sleeve 22 before brushing is hinged to the column 5 through the second front hinge 25, and the rear end of the internal threaded sleeve 24 after brushing is hinged to the brushing plate 18 through the second rear hinge 26. The internal threads of the internal threaded sleeve 22 before brushing and the internal threaded sleeve 24 after brushing are rotated in opposite directions. The front end of the screw rod 23 during brushing is inserted into and threadedly connected to the internal threaded sleeve 22 before brushing, and the rear end of the screw rod 23 during brushing is inserted into and threadedly connected to the internal threaded sleeve 24 after brushing. A second handle driving rod 27 is provided in the middle of the screw rod 23 during brushing.

[0031] A second flexible dust cover 28 is connected between the rear end of the front internal threaded sleeve 22 and the front end of the rear internal threaded sleeve 24 to cover the middle brushing screw 23 and the second handle driving rod 27 .

[0032] The left anti-deviation mechanism and the right anti-deviation mechanism have the same structure and are symmetrically arranged on the left and right sides, both including a rectangular frame 29. Three connecting sleeves 30 are fixedly provided in the middle part of the rectangular frame 29 along the front-to-back direction and are respectively sleeved on the three cross bars 2. Fastening nuts 31 for positioning and tightening the left and right ends of the connecting sleeves 30 are threadedly connected on the cross bars 2. At least two upper vertical rods 32 are fixedly connected to the top of the rectangular frame 29, and upper limit rollers 33 that are rollingly connected to the upper half edge of the conveyor belt 1 are rotatably connected to the upper vertical rods 32. At least two lower vertical rods 34 are fixedly connected to the bottom of the rectangular frame 29, and lower limit rollers 35 that are rollingly connected to the lower half edge of the conveyor belt 1 are rotatably connected to the lower vertical rods 34.

[0033] The specific working process of the present invention is as follows: The coal conveyor conveys coal from back to front (the direction of movement of the upper half of the conveyor belt 1), while the lower half of the conveyor belt 1 moves from front to back. The present invention is installed at the exit (front) end of the coal conveyor. The specific process of cleaning wet coal adhering to the conveyor belt 1 is as follows: Coal mined from the fully mechanized mining face is loaded onto the upper half of the conveyor belt 1 and transported from back to front. After reaching the exit of the coal conveyor, the upper half of the conveyor belt 1 rotates downward to the lower half and returns backward. Coal adhering to the bottom surface of the lower half of the conveyor belt 1 is blocked by a coal scraper 9. The upper front side of the coal scraper 9 scrapes large chunks of coal adhering to the bottom surface of the lower half of the conveyor belt 1 into a first coal receiving hopper located below the scraper 9 for collection. After the two coal scraping mechanisms 3 scrape the coal, the brushes 20 of the two brushing mechanisms 4 then sweep away any coal residue remaining on the bottom surface of the lower half of the conveyor belt 1. The granular coal residue falls into a second coal receiving hopper located below the brushing plates 18 for collection. After two times of scraping coal and two times of brushing, there is no more coal on the conveyor belt 1 on the backward journey, the weight of the conveyor belt 1 is reduced, the power load of the coal conveyor is reduced, and the adhered coal is also collected.

[0034] While the conveyor belt 1 is being scraped and brushed, the upper limit roller 33 at the top of the rectangular frame 29 limits the upper half of the conveyor belt 1, and the lower limit roller 35 at the bottom of the rectangular frame limits the lower half of the conveyor belt 1, thereby preventing the conveyor belt 1 from deviating.

[0035] The above embodiments illustrate the basic principles and features of the present invention. However, the above merely illustrates preferred embodiments of the present invention and is not intended to limit the present invention to the embodiments described. Persons skilled in the art, inspired by this patent, may make various modifications and improvements without departing from the spirit of the present invention and the scope of protection of the claims, all of which fall within the scope of protection of the present invention. Therefore, the patent and scope of protection of this utility model shall be subject to the appended claims.

Claims

1. A device for cleaning wet coal adhered to a coal mining conveyor belt, characterized by: It includes a left bracket and a right bracket respectively arranged on the left and right sides of the conveyor belt, and the left bracket and the right bracket are connected by at least two cross bars. The cross bars are horizontally arranged in the left and right directions and are located between the upper and lower halves of the conveyor belt. A coal scraping mechanism and a brushing mechanism located below the lower half of the conveyor belt are provided between the lower parts of the left bracket and the right bracket. A left anti-deviation mechanism is provided on the left side of the cross bar and is rollingly connected to the left side of the conveyor belt. A right anti-deviation mechanism is provided on the right side of the cross bar and is rollingly connected to the right side of the conveyor belt.

2. The device for cleaning wet coal adhered to a coal mining conveyor belt according to claim 1, characterized in that: The left bracket and the right bracket have the same structure, both of which include three columns arranged at intervals along the front-to-back direction, and three cross bars arranged at intervals along the front-to-back direction. The upper end of the middle column is connected to the end of the middle cross bar, the rear side of the upper end of the front column is connected to the end of the front cross bar through the front connecting frame, and the front side of the upper end of the rear column is connected to the end of the rear cross bar through the rear connecting frame. A support plate is horizontally provided at the lower end of each column, and the support plate is fixed to the tunnel floor by expansion bolts.

3. The device for cleaning wet coal adhered to a coal mining conveyor belt according to claim 2, characterized in that: There are two coal scraping mechanisms, which have the same structure and are respectively arranged on the front sides of the two front columns and the front sides of the two middle columns; The cam is connected to the upper and lower ends of the conveyor belt by a toothed connection, and the toothed connection is connected to the upper and lower ends of the conveyor belt by a toothed connection.

4. The device for cleaning wet coal adhered to a coal mining conveyor belt according to claim 3, characterized in that: A first flexible dustproof sleeve is connected between the rear end of the coal scraping internal threaded pipe and the front end of the coal scraping internal threaded pipe to cover the coal scraping middle screw and the first handle driving rod.

5. The device for cleaning wet coal adhered to a coal mining conveyor belt according to claim 2, characterized in that: There are two brushing mechanisms, which have the same structure and are respectively arranged on the rear sides of the two rear columns and the rear sides of the two middle columns; The two brush sweeping adjustment rods have the same structure and are symmetrically arranged on the left and right sides. The brush sweeping adjustment rods are located above the brush sweeping hinge support and each include a front brush sweeping internal threaded sleeve, a middle brush sweeping screw and a rear brush sweeping internal threaded sleeve. The front end of the front brush sweeping internal threaded sleeve is hinged to the column through a second front hinge, and the rear end of the rear brush sweeping internal threaded sleeve is hinged to the brush sweeping plate through a second rear hinge. The internal threads of the front brush sweeping internal threaded sleeve and the rear brush sweeping internal threaded sleeve have opposite rotation directions. The front end of the middle brush sweeping screw extends into and is threadedly connected to the front brush sweeping internal threaded sleeve, and the rear end of the middle brush sweeping screw extends into and is threadedly connected to the rear brush sweeping internal threaded sleeve. A second handle driving rod is provided in the middle of the middle brush sweeping screw.

6. The device for cleaning wet coal adhered to a coal mining conveyor belt according to claim 5, characterized in that: A second flexible dust-proof sleeve is connected between the rear end of the internal threaded sleeve before brushing and the front end of the internal threaded sleeve after brushing to cover the middle screw rod of brushing and the second handle driving rod.

7. The device for cleaning wet coal adhered to a coal mining conveyor belt according to claim 2, characterized in that: The left anti-deviation mechanism and the right anti-deviation mechanism have the same structure and are symmetrically arranged on the left and right sides, both of which include a rectangular frame. Three connecting sleeves are fixedly provided in the middle of the rectangular frame along the front-to-back direction and are respectively sleeved on the three cross bars. The cross bars are threaded with fastening nuts for positioning and tightening the left and right ends of the connecting sleeves. At least two upper vertical rods are fixedly connected to the top of the rectangular frame, and the upper vertical rods are rotatably connected to the upper limit rollers that are rollingly connected to the upper half edge of the conveyor belt. At least two lower vertical rods are fixedly connected to the bottom of the rectangular frame, and the lower vertical rods are rotatably connected to the lower limit rollers that are rollingly connected to the lower half edge of the conveyor belt.

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