Crushing device for coal mining

Abstract

The utility model relates to the technical field of coal mining, in particular to a crushing device for coal mining, which is characterized in that a rotating rod is rotatably arranged in a crushing box in a penetrating manner through a bearing, a crushing roller is fixedly sleeved on the rotating rod, one end of the rotating rod is rotatably arranged in an equipment box through a bearing after penetrating through the crushing box, and a first motor is fixedly arranged on the side wall of the equipment box; the two rotating rods are fixedly sleeved with first gears, the first screening plate is obliquely and fixedly arranged in the crushing box and located below the two crushing rollers, the lower portion of the first screening plate is slidably provided with a second screening plate through a sliding rail pair, and the threaded adjusting rod is rotationally arranged on the front side wall of the crushing box in a penetrating mode through threads. And one end of the threaded adjusting rod is rotationally connected with the second sieve plate through a bearing, coal ore which does not reach the crushing standard can be crushed again, the discharging quality and the working efficiency after the coal ore is crushed are improved, and the screening standard after the coal ore is crushed can be changed according to requirements.

Description

TECHNICAL FIELD

[0001] The utility model relates to coal mining technical field, concretely relates to a kind of crushing device of coal mining. BACKGROUND

[0002] Coal mine refers to the place rich in coal resources, generally divided into underground coal mine and open coal mine, in order to make coal ore mining more convenient, it is usually necessary to utilize crushing device to crush coal ore into small pieces and then transport, after the coal ore is crushed by the existing crushing device, the coal ore will be directly discharged, when some crushed coal ore still has relatively large size and causes adverse effect on subsequent transportation, it is still necessary to utilize artificial or other equipment to screen these coal ore, and then re-input this kind of relatively large size coal ore into crushing device for crushing, which greatly affects work efficiency, so a kind of crushing device of coal mining is urgently needed. UTILITY MODEL CONTENT

[0003] The utility model is directed to the defects and deficiencies of the prior art, and provides a crushing device for coal mining with reasonable design to solve the above problems.

[0004] To achieve the above object, the utility model adopts the following technical scheme: it contains crushing box, feed hopper and equipment box, the crushing box is fixedly arranged on the conveying device, the upper opening of the crushing box is provided with the feed hopper, and the left side wall of the crushing box is fixedly provided with the equipment box;

[0005] It also contains:

[0006] Rotary rod, the rotary rod is two, and is rotatably arranged in the crushing box through bearing, the rotary rod is fixedly provided with a crushing roller, and one end of the rotary rod is rotatably arranged in the equipment box through bearing after penetrating the crushing box;

[0007] The output shaft of the first motor is connected with one side of the rotary rod, a first gear is fixedly provided on the two rotary rods, the two first gears are meshed, and the two first gears are located in the equipment box;

[0008] The first sieve plate is fixedly arranged in the crushing box below the two crushing rollers, and the second sieve plate is slidably arranged below the first sieve plate through slide rail pair;

[0009] Threaded adjusting rod, the threaded adjusting rod is rotatably arranged on the front side wall of the crushing box through thread, one end of the threaded adjusting rod is rotatably connected with the second sieve plate through bearing, and the right side wall of the crushing box is provided with a repeated crushing mechanism.

[0010] Further, the repeated crushing mechanism contains:

[0011] The conveying frame is fixedly arranged on the right side wall of the crushing box, and a recycling feeding groove is arranged on the right side wall of the crushing box above the first sieve plate and penetrates the conveying frame.

[0012] The driving rod is rotatably arranged in the conveying frame through a bearing, the upper part of the conveying frame is fixedly provided with a second motor, the output shaft of the second motor is connected with the driving rod, and the driving rod is provided with a spiral feeding frame.

[0013] The material guide frame is two, and is fixedly arranged on the right side of the upper part of the first sieve plate.

[0014] Further, the first material guide plate is fixedly arranged on the upper part of the crushing roller on the front and rear inner side walls of the crushing box, and the second material guide plate is fixedly arranged on the lower part of the recycling discharge groove on the right inner side wall of the crushing box and is fixedly connected with the two first material guide plates.

[0015] Further, the two second gears are rotatably connected in the equipment box through shafts and bearings, the second gears are meshingly arranged on the first gear, the side wall of the second gear is rotatably connected with a connecting rod through a shaft and a bearing, one end of the connecting rod is rotatably connected with a guide block through a shaft and a bearing, the guide block is movably arranged in the guide groove arranged on the left side wall of the crushing box, one end of the guide block is fixedly arranged with a lifting rod, and the lifting rod is movably arranged in the feeding hopper.

[0016] Further, the connecting frame is rotatably arranged on the threaded adjusting rod through a bearing, the side wall of the connecting frame is fixedly arranged with a moving rod, and the moving rod is movably inserted in the front side wall of the crushing box.

[0017] Further, the transparent scale bar is fixedly arranged in the groove on the moving rod, and the lamp strip is fixedly arranged below the transparent scale bar in the groove.

[0018] Compared with the prior art, the coal mining crushing device has the advantages that the coal ore which does not meet the crushing standard can be crushed again, the discharging quality and work efficiency of the crushed coal ore are improved, and the screening standard of the crushed coal ore can be changed according to requirements. BRIEF DESCRIPTION OF DRAWINGS

[0019] Figure 1 is a structural schematic view of the utility model.

[0020] Figure 2 is a sectional view of the crushing box and the conveying frame in the utility model.

[0021] Figure 3 It is the parts explosion drawing of the equipment box, rotating rod, crushing roller, No. 1 motor, No. 1 gear, No. 2 gear, connecting rod, guide block and lifting rod in the utility model.

[0022] Figure 4 It is the parts explosion drawing of the crushing box, threaded adjusting rod, connecting frame, moving rod, transparent scale bar and lamp strip in the utility model.

[0023] Figure 5 It is the A part enlarged view in Figure 4 .

[0024] Mark explanation:

[0025] Crushing box 1, feed hopper 2, equipment box 3, rotating rod 4, crushing roller 5, No. 1 motor 6, No. 1 gear 7, No. 1 sieve plate 8, No. 2 sieve plate 9, threaded adjusting rod 10, recycling feed chute 11, recycling discharge chute 12, repeated crushing mechanism 13, conveying frame 13-1, driving rod 13-2, spiral feeding frame 13-3, guide frame 13-4, No. 2 motor 13-5, No. 1 guide plate 14, No. 2 guide plate 15, No. 2 gear 16, connecting rod 17, guide block 18, guide groove 19, lifting rod 20, connecting frame 21, moving rod 22, transparent scale bar 23, lamp strip 24. Specific implementation

[0026] The technical scheme in the utility model will be described clearly and completely in combination with the drawings, and the preferred embodiments in the description are only as examples, and all other embodiments obtained by the person skilled in the art without creative labor belong to the protection scope of the utility model.

[0027] As shown in Figures 1-5 , the specific implementation adopts the following technical scheme: it contains crushing box 1, feed hopper 2 and equipment box 3, the crushing box 1 is fixedly arranged on the conveying device, the crushing box 1 is provided with the feed hopper 2 at the opening in the upper portion, and the equipment box 3 is fixedly arranged on the left side wall of the crushing box 1;

[0028] It also contains:

[0029] Rotating rod 4, the rotating rod 4 is two, and is rotatably arranged in the crushing box 1 through bearings, the crushing roller 5 is fixedly sleeved on the rotating rod 4, and one end of the rotating rod 4 is rotatably arranged in the equipment box 3 through a bearing after penetrating the crushing box 1;

[0030] The first motor 6 is fixedly arranged on the side wall of the equipment box 3, the output shaft of the first motor 6 is connected with one side of the rotating rod 4, the first gear 7 is fixedly arranged on the two rotating rods 4, the two first gears 7 are meshed, and the two first gears 7 are located in the equipment box 3, the second gear 16 is rotatably connected with the equipment box 3 through the shaft and the bearing, the second gear 16 is meshed on the first gear 7, the connecting rod 17 is rotatably connected with the side wall of the second gear 16 through the shaft and the bearing, the guide block 18 is rotatably connected with one end of the connecting rod 17 through the shaft and the bearing, the guide block 18 is movably arranged in the guide groove 19 arranged on the left side wall of the crushing box 1, the lifting rod 20 is fixedly arranged on one end of the guide block 18, and the lifting rod 20 is movably arranged in the feeding hopper 2; in the process that the rotating rod 4 drives the crushing roller 5 to rotate to realize the crushing of the coal ore, the second gear 16 can rotate synchronously with the first gear 7, and under the cooperation of the connecting rod 17 and the guide block 18, the lifting rod 20 moves up and down reciprocatingly, so that the phenomenon of blockage of the coal ore in the feeding hopper 2 is avoided;

[0031] The first sieve plate 8 is fixedly arranged in the crushing box 1 and located below the two crushing rollers 5, and the second sieve plate 9 is slidably arranged on the lower part of the first sieve plate 8 through the slide rail pair;

[0032] The threaded adjusting rod 10 is rotatably arranged on the front side wall of the crushing box 1 through threads, one end of the threaded adjusting rod 10 is rotatably connected with the second sieve plate 9 through the bearing, the repeated crushing mechanism 13 is arranged on the right side wall of the crushing box 1, the connecting frame 21 is rotatably arranged on the threaded adjusting rod 10 through the bearing, the moving rod 22 is fixedly arranged on the side wall of the connecting frame 21, the moving rod 22 is movably arranged on the front side wall of the crushing box 1, the moving rod 22 can guide the movement of the connecting frame 21, thereby improving the movement stability of the connecting frame 21 and the threaded adjusting rod 10, the transparent scale strip 23 is fixedly arranged in the groove of the moving rod 22, the lamp strip 24 is fixedly arranged below the transparent scale strip 23 in the groove, the transparent scale strip 23 can be used to facilitate the staff to understand the adjustment state between the first sieve plate 8 and the second sieve plate 9, and the light generated by the lamp strip 24 can make the scale on the transparent scale strip 23 more obvious, which is helpful for the staff to observe the transparent scale strip 23;

[0033] The repeated crushing mechanism 13 comprises:

[0034] The conveyor frame 13-1 is fixedly installed on the right side wall of the crushing box 1. A recycling feed chute 11, which is connected to the conveyor frame 13-1, is opened on the right side wall of the crushing box 1 above the first screen plate 8. A recycling discharge chute 12, which is connected to the conveyor frame 13-1, is opened on the right side wall of the crushing box 1 above the two crushing rollers 5. A first guide plate 14 is inclinedly fixedly installed on the front and rear inner side walls of the crushing box 1 above the crushing rollers 5. A second guide plate 15 is inclinedly fixedly installed on the right inner wall of the crushing box 1 below the recycling discharge chute 12. The second guide plate 15 is fixedly connected to the two first guide plates 14. The first guide plate 14 and the second guide plate 15 can respectively provide falling guidance for the coal ore falling from the feed hopper 2 and the recycling discharge chute 12, so that the coal ore can fall between the two crushing rollers 5 for crushing, thereby improving the crushing effect of the coal ore.

[0035] The drive rod 13-2 is rotatably mounted inside the conveyor frame 13-1 via a bearing. A second motor 13-5 is fixedly mounted on the upper part of the conveyor frame 13-1. The output shaft of the second motor 13-5 is connected to the drive rod 13-2. A spiral feeder 13-3 is provided on the drive rod 13-2.

[0036] There are two guide frames 13-4, both of which are fixedly installed on the upper right side of the No. 1 screen plate 8. The two guide frames 13-4 are located on the front and rear sides of the recycling feed trough 11, respectively. When the No. 2 motor 13-5 drives the spiral feeder 13-3 to rotate through the drive rod 13-2, it can transport the coal ore in the conveyor frame 13-1 upwards, so as to realize the re-crushing of coal ore that has not reached the crushing requirements.

[0037] When using this invention, coal ore is fed into the crushing box 1 through the feed hopper 2, causing it to fall onto the crushing roller 5. The first motor 6 is then started, driving the rotating rod 4 connected to its output shaft to rotate. The meshing of two first gears 7 causes the rotating rods 4 on both sides to rotate synchronously in opposite directions. The rotating rods 4 drive the crushing roller 5 to rotate, thus crushing the coal ore. The crushed coal ore falls onto the first screen plate 8. The crushed coal ore that passes through the first and second screen plates 8 continues to fall onto the conveying device. Coal ore that is still relatively large after crushing will move to the right due to the tilt of the first screen plate 8 and will be guided by the guide frame 13-4 through the recovery feed. The trough 11 moves into the conveyor frame 13-1, and then the second motor 13-5 can be started. The second motor 13-5 drives the drive rod 13-2 to rotate, and the drive rod 13-2 drives the screw feeder 13-3 to rotate, so that the screw feeder 13-3 conveys the coal ore in the conveyor frame 13-1 upward. Then the coal ore will fall back from the recovery discharge trough 12 onto the crushing roller 5, realizing the re-crushing of larger unqualified coal ore. When it is necessary to change the screening standard of the crushed coal ore, the threaded adjustment rod 10 can be rotated to adjust the position of the second screen plate 9 below the first screen plate 8, changing the size of the several screen troughs formed by the first screen plate 8 and the second screen plate 9, thereby changing the screening standard of the crushed coal ore.

[0038] Compared with the prior art, the beneficial effects of this utility model are:

[0039] 1. Through the cooperation of No. 1 screen plate 8, No. 2 screen plate 9, threaded adjusting rod 10 and repeated crushing mechanism 13, not only can coal ore that does not meet the crushing standard be re-crushed, improving the output quality and working efficiency of coal ore after crushing, but the screening standard of coal ore after crushing can also be changed according to the needs.

[0040] 2. The No. 1 guide plate 14 and the No. 2 guide plate 15 can respectively guide the coal ore falling from the feed hopper 2 and the recovery discharge chute 12, so that the coal ore can fall between the two crushing rollers 5 for crushing, thereby improving the crushing effect of the coal ore.

[0041] 3. During the process of crushing coal ore by rotating the rotating rod 4 and driving the crushing roller 5 to rotate, the second gear 16 can rotate synchronously with the first gear 7, and with the cooperation of the connecting rod 17 and the guide block 18, the lifting rod 20 moves up and down back and forth to avoid the phenomenon of coal ore causing blockage in the feed hopper 2.

[0042] 4. The transparent scale strip 23 makes it easy for staff to understand the adjustment status between the No. 1 sieve plate 8 and the No. 2 sieve plate 9, while the light produced by the light strip 24 makes the scale on the transparent scale strip 23 more obvious, which helps staff to observe the transparent scale strip 23.

[0043] For those skilled in the art, modifications can be made to the technical solutions described in the foregoing embodiments, and equivalent substitutions can be made to some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A crushing device for coal mining, comprising a crushing box (1), a feeding hopper (2) and an equipment box (3), wherein the crushing box (1) is fixedly mounted on a conveying device, the feeding hopper (2) is provided at the upper opening of the crushing box (1), and the equipment box (3) is fixedly mounted on the left side wall of the crushing box (1); Its features are: It also includes: Rotating rod (4), there are two rotating rods (4), both of which are rotated through the crushing box (1) by bearings. Crushing roller (5) is fixedly sleeved on the rotating rod (4). One end of the rotating rod (4) passes through the crushing box (1) and is rotated in the equipment box (3) by bearings. The No. 1 motor (6) is fixedly installed on the side wall of the equipment box (3). The output shaft of the No. 1 motor (6) is connected to the rotating rod (4) on one side. The No. 1 gear (7) is fixedly sleeved on both rotating rods (4). The two No. 1 gears (7) are meshed and both No. 1 gears (7) are located inside the equipment box (3). The No. 1 screen plate (8) is inclined and fixedly installed in the crushing box (1) at the position below the two crushing rollers (5). The No. 2 screen plate (9) is slidably installed at the lower part of the No. 1 screen plate (8) through the slide rail pair. A threaded adjusting rod (10) is threaded and rotated through the front side wall of the crushing box (1). One end of the threaded adjusting rod (10) is rotatably connected to the No. 2 screen plate (9) through a bearing. A repeated crushing mechanism (13) is provided on the right side wall of the crushing box (1).

2. The crushing device for coal mining according to claim 1, characterized in that: The repeated crushing mechanism (13) includes: The conveyor frame (13-1) is fixedly installed on the right side wall of the crushing box (1), and a recycling feed chute (11) that communicates with the conveyor frame (13-1) is opened on the right side wall of the crushing box (1) above the No. 1 screen plate (8), and a recycling discharge chute (12) that communicates with the conveyor frame (13-1) is opened on the right side wall of the crushing box (1) above the two crushing rollers (5); A drive rod (13-2) is rotatably mounted inside a conveyor frame (13-1) via a bearing. A second motor (13-5) is fixedly mounted on the upper part of the conveyor frame (13-1). The output shaft of the second motor (13-5) is connected to the drive rod (13-2). A screw feeder (13-3) is mounted on the drive rod (13-2). There are two guide frames (13-4), both of which are fixedly installed on the upper right side of the No. 1 screen plate (8), and the two guide frames (13-4) are located on the front and rear sides of the recycling feed trough (11) respectively.

3. A crushing device for coal mining according to claim 2, characterized in that: A first guide plate (14) is inclinedly and fixedly installed on the front and rear inner walls of the crushing box (1) above the crushing roller (5). A second guide plate (15) is inclinedly and fixedly installed on the right inner wall of the crushing box (1) below the recycling discharge trough (12), and the second guide plate (15) is fixedly connected to the two first guide plates (14).

4. The crushing device for coal mining according to claim 1, characterized in that: The equipment box (3) contains two No. 2 gears (16) that are rotatably connected by shafts and bearings. The No. 2 gears (16) are meshed with the No. 1 gear (7). A connecting rod (17) is rotatably connected to the side wall of the No. 2 gear (16) by shafts and bearings. A guide block (18) is rotatably connected to one end of the connecting rod (17) by shafts and bearings. The guide block (18) is movably inserted into the guide groove (19) opened on the left side wall of the crushing box (1). A lifting rod (20) is fixedly installed at one end of the guide block (18). The lifting rod (20) is movably installed in the feed hopper (2).

5. A crushing device for coal mining according to claim 1, characterized in that: The threaded adjusting rod (10) is fitted with a connecting frame (21) through a bearing. A movable rod (22) is fixedly installed on the side wall of the connecting frame (21). The movable rod (22) is movably inserted into the front side wall of the crushing box (1).

6. A crushing device for coal mining according to claim 5, characterized in that: A transparent scale strip (23) is fixedly installed in the groove opened on the movable rod (22), and a light strip (24) is fixedly installed in the groove below the transparent scale strip (23).

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