Belt conveyor head coal sweeper

Abstract

The utility model relates to the coal mine industry, in particular to a belt conveyor head coal sweeper. The belt conveyor head coal sweeper comprises a support, connecting plates, a first motor, rollers, a conveying belt and the like, the two connecting plates are in front-back symmetry and are fixedly connected to the front side and the rear side of the upper portion of the support, the first motor is installed on the left side of the connecting plate on the front side, and the two rollers are in left-right symmetry and are rotationally connected between the left side and the right side of the two connecting plates. And the conveying belt is rotationally connected between the exteriors of the two rollers. The coal sweeping assembly is arranged on the belt conveyor head, so that cleanness of the surface of a conveying belt is guaranteed, equipment abrasion and faults caused by residues are reduced, the reliability and efficiency of a conveying system are improved, and the service life of equipment is prolonged; by reducing the influence of residues, normal operation of the conveying belt is guaranteed, and the situation that the conveying efficiency is reduced due to slipping or other faults is avoided; in addition, dirt on the conveying belt and the roller does not need to be frequently and manually cleaned, and the labor intensity of workers is reduced.

Description

TECHNICAL FIELD

[0001] The utility model relates to the coal mine industry especially relates to a belt conveyor head coal sweeper. BACKGROUND

[0002] When coal mines are exploited, the coal bunker is used as the centralized storage area of coal, which can collect coal transported from different working faces or mining areas, and is convenient for unified management and scheduling. When the coal is transported, the conveyor is needed to quickly transport the coal into the coal bunker.

[0003] However, when the coal is transported, the coal dust or impurities in the coal will remain on the conveyor belt of the conveyor, and the remaining coal dust or impurities will increase the friction between the conveyor belt and the roller, causing the conveyor belt and the roller to accelerate wear. This wear not only increases the maintenance frequency of the equipment, but also causes the equipment to be scrapped prematurely, shortening its service life. In addition, the remaining substances will affect the normal operation of the conveyor belt, which may cause skidding or other faults, thereby reducing the conveying efficiency. In addition, the workers need to manually clean the accumulated dirt on the conveyor belt and the roller frequently, increasing the labor intensity of the workers.

[0004] Therefore, there is an urgent need for a belt conveyor head coal sweeper to solve the above problems. CONTENT OF THE UTILITY MODEL

[0005] In order to overcome the problem that the coal dust or impurities in the coal will remain on the conveyor belt when the coal is transported, causing the equipment to accelerate wear, frequent failures, low efficiency, and increasing the labor intensity of the workers, the utility model aims to provide a belt conveyor head coal sweeper.

[0006] The technical scheme is as follows: a belt conveyor head coal sweeper, comprising a support, a connecting plate, a first motor, a roller, a conveyor belt and a coal sweeping assembly, two connecting plates are symmetrically arranged front and back, and are fixedly connected to the upper front and back sides of the support. The first motor is installed on the left side of the front connecting plate. Two rollers are symmetrically arranged left and right, and are rotatably connected between the left and right sides of the two connecting plates. The front end of the left roller is fixedly connected to the output shaft of the first motor. The conveyor belt is rotatably connected between the outer portions of the two rollers, and the front and back edges thereof are respectively tightly attached to the two connecting plates. The coal sweeping assembly is arranged between the support and the connecting plate.

[0007] As a further preferred embodiment, the coal sweeping assembly includes a fixed plate, cams, a coal sweeping plate, a top plate, a connecting block, a sliding block, a first spring, a sliding rod, a connecting rod, and a support block. The fixed plate is fixed to the lower part of the support. Two cams are longitudinally distributed and fixed to the front and rear ends of the right roller. Two support blocks are symmetrically distributed and fixed to the front and rear sides of the fixed plate. The connecting rod is rotatably connected between the two support blocks. The connecting block is fixed to the middle end of the connecting rod. The sliding rod is slidably connected to the upper part of the connecting block. Two sliding blocks are distributed front and rear and fixed to the outside of the sliding rod. The top plate is fixed between the tops of the two sliding blocks, and the two cams are located above the top plate, respectively aligned with the front and rear sides of the top plate. The coal sweeping plate is fixed to the top of the top plate and contacts the surface of the conveyor belt. Two first springs are distributed front and rear, both sleeved on the outside of the sliding rod and separated by the connecting block. The two ends of the front first spring are fixedly connected to the front sliding block and the connecting block, respectively. The two ends of the rear first spring are fixedly connected to the rear sliding block and the connecting block, respectively.

[0008] As a further preferred embodiment, it also includes a rotating block, a limiting rod, and a second spring. The two rotating blocks are distributed front to back and fixed to the outside of the connecting rod. The two limiting rods are symmetrical front to back and slidably connected to the fixed plate. The rotating blocks are slidably connected to the limiting rods. The second spring is sleeved on the lower end of the limiting rod and its two ends are respectively connected to the fixed plate and the limiting rod.

[0009] As a further preferred embodiment, it also includes a scraper, a fixing block, a second motor, and a screw. The two fixing blocks are symmetrically distributed and fixed to the front and rear sides of the lower part of the coal sweeping plate. The second motor is installed on the rear fixing block. The screw is fixed to the output shaft of the second motor and its front end is rotatably connected to the front fixing block. The scraper is threaded to the outside of the screw and contacts the side of the coal sweeping plate away from the conveyor belt.

[0010] As a further preferred option, the top plate has sloping surfaces on both the front and rear sides.

[0011] As a further preferred option, the multiple convex angles of the two cams are staggered.

[0012] This utility model has the following advantages: By setting a coal sweeping component on the conveyor head, this utility model ensures the cleanliness of the conveyor belt surface, reduces equipment wear and malfunctions caused by residues, improves the reliability and efficiency of the conveying system, and extends the service life of the equipment; in addition, by reducing the impact of residues, it ensures the normal operation of the conveyor belt and avoids the decrease in conveying efficiency caused by slippage or other malfunctions; furthermore, it eliminates the need for frequent manual cleaning of the dirt on the conveyor belt and rollers, reducing the labor intensity of workers.

[0013] This invention, by setting up a fixed block, a second motor, and a screw, can effectively remove coal powder or impurities from the coal sweeping plate, making the cleaning process more automated, reducing the need for manual intervention, and improving the overall operating efficiency of the equipment.

[0014] The utility model discloses a fixed plate, rotating block, limit rod and second spring can be realized self -adjusting function of coal sweeping subassembly, when the contact force between the coal sweeping plate and the conveyer belt changes due to the vibration of load change or other factors on the conveyer belt, the mechanism can automatically adjust the position of the coal sweeping plate to maintain proper contact pressure, so that the coal sweeping plate can always effectively clean the surface of the conveyer belt, avoid the problem of incomplete cleaning due to poor contact. BRIEF DESCRIPTION OF DRAWINGS

[0015] Figure 1 It is the three-dimensional structure schematic view of the utility model.

[0016] Figure 2 It is the three-dimensional structure schematic view of the utility model conveyer belt, cam and coal sweeping plate etc.

[0017] Figure 3 It is the three-dimensional structure schematic view of the utility model scraper, roof and connecting block etc.

[0018] Figure 4 It is the three-dimensional structure schematic view of the utility model sliding rod, connecting rod and support block etc.

[0019] Figure 5 It is the three-dimensional structure schematic view of the utility model coal sweeping plate, scraper and roof etc.

[0020] Figure mark name: 1 - support, 101 - fixed plate, 102 - connecting plate, 2 - first motor, 201 - cylinder, 3 - conveyer belt, 4 - cam, 5 - coal sweeping plate, 6 - scraper, 7 - roof, 8 - connecting block, 9 - sliding block, 10 - first spring, 11 - sliding rod, 12 - connecting rod, 13 - support block, 14 - fixed block, 15 - second motor, 16 - rotating block, 17 - limit rod, 18 - second spring, 19 - screw rod. DETAILED DESCRIPTION

[0021] The technical solutions will be further described below in combination with specific embodiments, and it should be noted that the words such as up, down, left and right in the text only refer to the positions of the shown structures in the corresponding drawings. The serial numbers of the components in the text, such as first, second, etc., are only used to distinguish the described objects and do not have any sequence or technical meaning. Unless otherwise specified, the connection and coupling mentioned in the application include direct and indirect connection.

[0022] Embodiment: a belt conveyor head coal sweeper, refer to Figures 1-5As shown, it comprises a bracket 1, a connecting plate 102, a first motor 2, a roller 201, a conveying belt 3 and a coal sweeping assembly. The two connecting plates 102 are symmetrically arranged front and back, and are connected to the upper front and back sides of the bracket 1 by welding. The first motor 2 is connected to the left side of the front connecting plate 102 by bolts. The two rollers 201 are symmetrically arranged left and right, and are rotatably connected between the left and right sides of the two connecting plates 102. The left roller 201 is fixedly connected to the output shaft of the first motor 2. The conveying belt 3 is rotatably connected between the outer portions of the two rollers 201, and the front and back edges thereof are respectively close to the two connecting plates 102. The coal sweeping assembly is arranged between the bracket 1 and the connecting plate 102.

[0023] Referring to Figures 1-5 As shown, the coal sweeping assembly comprises a fixed plate 101, a cam 4, a coal sweeping plate 5, a top plate 7, a connecting block 8, a sliding block 9, a first spring 10, a sliding rod 11, a connecting rod 12 and a supporting block 13. The fixed plate 101 is connected to the lower portion of the bracket 1 by welding. The two cams 4 are longitudinally arranged, and are connected to the front and back ends of the right roller 201 by welding. The two supporting blocks 13 are symmetrically arranged, and are connected to the front and back sides of the fixed plate 101 by welding. The connecting rod 12 is rotatably connected between the two supporting blocks 13. The connecting block 8 is connected to the middle end of the connecting rod 12 by welding. The sliding rod 11 is slidably connected to the upper portion in the connecting block 8. The two sliding blocks 9 are front and back arranged, and are connected to the outer portions of the sliding rod 11 by welding. The top plate 7 is connected to the top portions between the two sliding blocks 9 by welding, and the two cams 4 are located above the top plate 7 and are respectively aligned with the front and back sides of the top plate 7. The front and back sides of the top plate 7 are both provided with inclined surfaces, so that when the cam 4 extrudes the top plate 7, a downward pressure is generated on the top plate 7 through the contact between the profile of the cam 4 and the inclined surface of the top plate 7. The coal sweeping plate 5 is connected to the top portion of the top plate 7 by welding, and is in contact with the surface of the conveying belt 3. The upper side of the coal sweeping plate 5 is provided with an inclined surface, so that the swept coal powder or impurities can be guided to the right side surface of the coal sweeping plate 5. The multiple cam angles of the two cams 4 are staggered, which can ensure that the two cams 4 alternately extrude the inclined surface of the top plate 7 during rotation, so that the top plate 7 can continuously move. The width of the inclined surface on the front side of the top plate 7 is equal to the distance from the front side edge of the coal sweeping plate 5 to the rear side edge of the front connecting plate 102, and the width of the inclined surface on the rear side of the top plate 7 is equal to the distance from the rear side edge of the coal sweeping plate 5 to the front side edge of the rear connecting plate 102, which can ensure that the position of the top plate 7 is accurately controlled when the inclined surface is extruded by the cam 4, so that the coal sweeping plate 5 can fully clean the surface of the conveying belt 3. The two first springs 10 are front and back arranged, are both sleeved on the outer portion of the sliding rod 11, and are separated by the connecting block 8. The two ends of the front first spring 10 are respectively fixedly connected with the front sliding block 9 and the connecting block 8. The two ends of the rear first spring 10 are respectively fixedly connected with the rear sliding block 9 and the connecting block 8.

[0024] Referring to Figure 4As shown, it further comprises rotating blocks 16, limiting rods 17 and second springs 18, two rotating blocks 16 are distributed in front of and behind the connecting rod 12 and are connected to the outside of the connecting rod 12 by welding, two limiting rods 17 are symmetrically distributed in front of and behind the fixed plate 101 and are slidably connected to the fixed plate 101, and the rotating blocks 16 are slidably connected with the limiting rods 17, the second springs 18 are sleeved on the lower ends of the limiting rods 17 and are connected with the fixed plate 101 and the limiting rods 17 at two ends.

[0025] Referring to Figures 3-5 As shown, it further comprises scrapers 6, fixed blocks 14, a second motor 15 and a screw rod 19, two fixed blocks 14 are symmetrically distributed and are connected to the lower front and rear sides of the coal sweeping plate 5 by welding, the second motor 15 is connected to the rear fixed block 14 by bolts, the screw rod 19 is connected to the output shaft of the second motor 15 by key connection and is rotatably connected with the front fixed block 14 at the front end, the scraper 6 is threadedly connected to the outside of the screw rod 19 and is in contact with the side of the coal sweeping plate 5 away from the conveying belt 3, and the scraper 6 is made of polyurethane and can prevent the coal sweeping plate 5 from being scratched.

[0026] At the beginning, the front side slope of the top plate 7 is staggered with the front side cam 4, and the rear side slope of the top plate is aligned with the rear side cam 4, when the coal needs to be transported, the worker puts the coal to the left side of the conveying belt 3, starts the first motor 2, and makes the output shaft drive the left side roller 201 to rotate, at this time, the left side roller 201 and the right side roller 201 work cooperatively to drive the conveying belt 3 to rotate, and the coal is conveyed to the coal bunker, in the conveying process, the coal powder or impurities will be left on the surface of the conveying belt 3, the conveying belt 3 continues to rotate, so that the left coal powder or impurities is cleaned by the coal sweeping plate 5, the right side roller 201 drives the two cams 4 to rotate at the same time, so that the two cams 4 alternately press the front and rear side slopes of the top plate 7, when the rear side slope is pressed, the top plate 7 drives the sliding block 9 and the coal sweeping plate 5 to move forward, the rear side first spring 10 is compressed, and the front side first spring 10 is stretched, when the front side slope is pressed, the top plate 7 drives the sliding block 9 and the coal sweeping plate 5 to move backward, the front side first spring 10 is compressed, and the rear side first spring 10 is stretched, in this way, the coal sweeping plate 5 continuously moves forward and backward, and the coal powder or impurities on the surface of the conveying belt 3 is cleaned sufficiently, and a good cleaning effect is realized, in the cleaning process, the coal sweeping plate 5 slightly rotates with the rotation of the conveying belt 3, so that the top plate 7 drives the connecting block 8 to rotate, the connecting rod 12 drives the rotating block 16 to rotate, the connecting block 8 pulls the limiting rod 17 to move upward, the second spring 18 is compressed, and a downward restoring force is applied to the rotating block 16, the connecting rod 12, the connecting block 8 and the top plate 7, so that the coal sweeping plate 5 is close to the surface of the conveying belt 3, the coal powder or impurities swept down will be attached to the right side surface of the coal sweeping plate 5, then the second motor 15 is started, the output shaft drives the screw rod 19 to rotate, and drives the scraper 6 to move forward, and the coal powder or impurities on the right side surface of the coal sweeping plate 5 is scraped, when the scraper 6 moves to the limit position, the output shaft of the second motor 15 is reversed, the screw rod 19 is reversed, and the scraper 6 is driven to move backward, in this way, the scraper 6 continuously moves forward and backward, and the coal powder or impurities on the coal sweeping plate 5 is scraped sufficiently, after the conveying is completed, the first motor 2 and the second motor 15 are closed.

[0027] Finally, it should be noted that: the above only for preferred embodiments of the utility model have described, and do not for limiting the utility model, although the utility model is described in detail with reference to the foregoing embodiments, for the person skilled in the art, it still can modify the technical scheme recorded in the foregoing each embodiment, or equivalent replacement to part of technical features, any modification, equivalent replacement, improvement etc. made within the spirit and principle of the utility model, should be contained in the protection scope of the utility model.

Claims

1. A coal sweeper for a belt conveyor head, characterized in that, It includes a support (1), a connecting plate (102), a first motor (2), a roller (201), a conveyor belt (3), and a coal sweeping assembly. The two connecting plates (102) are symmetrical front and back and are fixed to the front and back sides of the upper part of the support (1). The first motor (2) is installed on the left side of the front connecting plate (102). The two rollers (201) are symmetrical left and right and are rotatably connected between the left and right sides of the two connecting plates (102). The front end of the left roller (201) is fixedly connected to the output shaft of the first motor (2). The conveyor belt (3) is rotatably connected between the outside of the two rollers (201) and the front and back edges are respectively close to the two connecting plates (102). The coal sweeping assembly is set between the support (1) and the connecting plate (102).

2. The belt conveyor head coal sweeper according to claim 1, characterized in that, The coal sweeping assembly includes a fixed plate (101), cams (4), a coal sweeping plate (5), a top plate (7), a connecting block (8), a sliding block (9), a first spring (10), a sliding rod (11), a connecting rod (12), and a support block (13). The fixed plate (101) is fixed to the right side of the bracket (1). Two cams (4) are longitudinally distributed and fixed to the front and rear ends of the right roller (201). Two support blocks (13) are symmetrically distributed and fixed to the front and rear sides of the fixed plate (101). The connecting rod (12) is rotatably connected between the two support blocks (13). The connecting block (8) is fixed to the middle end of the connecting rod (12). The sliding rod (11) is slidably connected inside the connecting block (8). At the top, two sliding blocks (9) are distributed front to back and fixed to the outside of the sliding rod (11). The top plate (7) is fixed between the tops of the two sliding blocks (9) and two cams (4) are located above the top plate (7) and are respectively aligned with the front and rear sides of the top plate (7). The coal sweeping plate (5) is fixed to the top of the top plate (7) and contacts the surface of the conveyor belt (3). Two first springs (10) are distributed front to back and are both sleeved on the outside of the sliding rod (11) and separated by the connecting block (8). The two ends of the front first spring (10) are fixedly connected to the front sliding block (9) and the connecting block (8) respectively. The two ends of the rear first spring (10) are fixedly connected to the rear sliding block (9) and the connecting block (8) respectively.

3. A belt conveyor head coal sweeper according to claim 2, characterized in that, It also includes a rotating block (16), a limiting rod (17), and a second spring (18). The two rotating blocks (16) are distributed front and back and fixed to the outside of the connecting rod (12). The two limiting rods (17) are symmetrical front and back and are slidably connected to the fixed plate (101). The rotating block (16) is slidably connected to the limiting rod (17). The second spring (18) is sleeved on the lower end of the limiting rod (17) and its two ends are respectively connected to the fixed plate (101) and the limiting rod (17).

4. A belt conveyor head coal sweeper according to claim 3, characterized in that, It also includes a scraper (6), a fixing block (14), a second motor (15) and a screw (19). The two fixing blocks (14) are symmetrically distributed and fixed to the front and rear sides of the lower part of the coal sweeping plate (5). The second motor (15) is installed on the rear fixing block (14). The screw (19) is fixed to the output shaft of the second motor (15) and its front end is rotatably connected to the front fixing block (14). The scraper (6) is threaded to the outside of the screw (19) and contacts the side of the coal sweeping plate (5) away from the conveyor belt (3).

5. A belt conveyor head coal sweeper according to claim 4, characterized in that, The top plate (7) has sloping surfaces on both the front and rear sides.

6. A coal sweeper for a belt conveyor head according to claim 5, characterized in that, The multiple convex angles of the two cams (4) are staggered.

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