Automatic coal sample screening device

Abstract

The utility model provides an automatic coal sample screening device which comprises a box body, a placing plate is fixedly arranged in the box body, and a spherical groove is formed in the top of the placing plate; a feeding pipe is fixedly arranged on one side of the box body, and the feeding pipe penetrates through the placing plate to communicate with the spherical groove; a fixed cylinder is fixedly arranged in the box body, a sliding plate is arranged in the fixed cylinder in a limiting sliding mode in the vertical direction, a rotating column is rotationally arranged at the bottom of the sliding plate, and a crushing ball is fixedly arranged at the bottom of the rotating column; the crushing ball is matched with the spherical groove, the sliding plate is in transmission fit with the rotating column through a first transmission part, and a driving mechanism for driving the sliding plate to slide in a reciprocating mode in the vertical direction is arranged on the box body. In the process that the driving mechanism drives the crushing ball to move up and down in a reciprocating mode, the crushing ball can automatically rotate under transmission of the first transmission part, so that the coal sample is crushed and ground, the whole process is simple in structure and good in transmission effect, the manufacturing cost is reduced, meanwhile, the construction difficulty of a control system is lowered, and the practical effect is better.

Description

TECHNICAL FIELD

[0001] The utility model belongs to coal mine energy technology field, concretely relates to a coal sample automatic screening device. BACKGROUND

[0002] When detecting coal sample, in order to facilitate research, coal sample is usually broken into coal particles or coal powder of certain particle size in advance, but in prior art, traditional coal crusher is usually used to break coal first, and then broken coal sample is screened manually, which not only consumes time and effort, but also produces a large amount of dust, causing physical harm to operators.

[0003] The patent with publication number CN219915060U discloses a coal sample analysis device for coal mine laboratory, which is provided with a box body, a spherical groove, a breaking ball, a first motor, a second motor, an adjusting column, an incomplete gear, a first gear, a second gear, a third gear and a fourth gear, etc., in use, coal sample is first conveyed into the spherical groove through the feeding pipe, the first motor is started, the output shaft of the first motor drives the second gear to rotate through the first gear, thereby driving the incomplete gear to rotate, so that the adjusting column drives the breaking ball to reciprocate up and down, and then the breaking ball is operated to break coal sample. During the operation, the second motor is started, the output shaft of the second motor drives the fourth gear to rotate through the third gear, and then drives the breaking ball to rotate, so that the breaking ball can grind coal sample while breaking coal sample.

[0004] However, the above-mentioned scheme not only needs to start the first motor to control the breaking ball to move and break, but also needs to start the second motor to control the breaking ball to rotate and grind, and each operation step needs an extra driving source to provide power, so that the movement and rotation of the breaking ball are divided into two independent operation steps, the overall structure is relatively complex, the transmission effect in the breaking and grinding process is poor, and meanwhile, multiple driving sources also cause the problems of increased manufacturing cost and increased difficulty in control system structure, which has certain limitations in actual use and production. UTILITY MODEL CONTENTS

[0005] To solve the problems in the background art, the utility model provides a coal sample automatic screening device.

[0006] To achieve the above-mentioned purpose, the utility model provides the technical scheme as follows:

[0007] The utility model provides a kind of coal sample automatic screening device, including box, fixedly arranged placing plate in box, the top of placing plate is opened spherical groove;One side of the box is fixedly arranged feed pipe, feed pipe passes through placing plate and is communicated with spherical groove;Fixedly arranged fixed cylinder in the box, sliding plate is limitedly arranged in fixed cylinder along vertical direction and slides, the bottom of sliding plate is rotatably arranged rotating column, and the bottom of rotating column is fixedly arranged breaking ball;Breaking ball is adapted to spherical groove, sliding plate is driven by first transmission member and rotating column transmission cooperation, and driving mechanism is equipped on the box to drive sliding plate to reciprocate along vertical direction.

[0008] Further, the driving mechanism includes a first motor, the first motor is fixedly installed on the outer surface of the box, the output shaft of the first motor is fixedly arranged with a connecting rod, the connecting rod is rotatably extended into the fixed cylinder and fixedly sleeved with a gear, the top of the sliding plate is fixedly arranged with a toothed plate, the toothed plate is in meshing transmission with the gear and always keeps meshing state.

[0009] Further, the first transmission member includes a clamping rod, the clamping rod is fixedly arranged on the fixed cylinder, the outer surface of the rotating column is provided with a movable slot, the movable slot is arranged in a spiral shape, and one end of the clamping rod is limitedly and slidably arranged in the movable slot.

[0010] Further, the bottom of the placing plate is provided with a baffle, and the baffle is located below the spherical groove;The cylinder is fixedly installed on the placing plate, and the telescopic shaft of the cylinder is fixedly connected with the baffle.

[0011] Further, the box is provided with a screen along the vertical direction and a rotating rod along the horizontal direction, and the rotating rod is in transmission cooperation with the screen.

[0012] Further, the second motor is fixedly installed on the outer surface of the box, the output shaft of the second motor is coaxially fixedly connected with one end of the rotating rod, the other end of the rotating rod is rotatably connected with the inner wall of the box, a plurality of special-shaped plates are fixedly sleeved on the outer surface of the rotating rod, a plurality of protrusions are fixedly arranged on the outer surface of the special-shaped plates, and the plurality of protrusions of the special-shaped plates are in transmission cooperation with the bottom of the screen in contact mode.

[0013] Further, the inner wall of the box is fixedly provided with a plurality of supporting blocks, the top of each supporting block is fixedly provided with a spring, and the top of all springs is fixedly connected with the bottom of the screen.

[0014] Further, the connecting rod is in transmission cooperation with the rotating rod through the second transmission member, and the outer surface of the rotating rod is eccentrically provided with a circular plate;The second transmission member includes a belt, one end of the connecting rod, which is not connected with the output shaft of the first motor, is rotatably extended to the outside of the box and coaxially fixedly arranged with a first pulley, one end of the rotating rod is rotatably extended to the outside of the box and coaxially fixedly arranged with a second pulley, and the first pulley and the second pulley are transmissionally sleeved with the belt.

[0015] The present application has the following advantages:

[0016] 1. The driving mechanism drives the crushing ball to move up and down reciprocatingly, and the crushing ball also rotates automatically under the transmission of the first transmission member, thereby crushing and grinding the coal sample, the whole process has simple structure and good transmission effect, reduces the manufacturing cost and the construction difficulty of the control system, and has better practical effect.

[0017] 2. In the process that the driving mechanism drives the crushing ball to move up and down reciprocatingly, the rotating rod can be driven to rotate automatically through the second transmission member, the rotating rod rotating drives the screen to move up and down reciprocatingly, thereby further improving the overall transmission effect while ensuring the screening efficiency of the screen, and has higher working efficiency and better practical effect. BRIEF DESCRIPTION OF DRAWINGS

[0018] The above and other objects, features and advantages of the exemplary embodiments of the present application will be more apparent from the following detailed description read in conjunction with the accompanying drawings, in which several embodiments of the present application are shown by way of example, and wherein the same or similar components are referred to with the same or similar reference numerals, in which:

[0019] Figure 1 is a schematic diagram of the three-dimensional structure of the embodiment one of the present application.

[0020] Figure 2 is a schematic diagram of the internal structure of the box body of the embodiment one of the present application.

[0021] Figure 3 is a schematic diagram of the internal structure of the fixed cylinder of the embodiment one of the present application.

[0022] Figure 4 is a schematic diagram of the structure of the first transmission member of the present application.

[0023] Figure 5 is a schematic diagram of the three-dimensional structure of the embodiment two of the present application.

[0024] Figure 6 is a schematic diagram of the positional relationship structure of the second transmission member of the present application.

[0025] BRIEF DESCRIPTION OF DRAWINGS

[0026] 1, box body; 2, first motor; 3, connecting rod; 4, fixed cylinder; 5, gear; 6, toothed plate; 7, sliding plate; 8, rotating column; 9, clamping rod; 10, movable groove; 11, crushing ball; 12, crushing block; 13, placing plate; 14, air cylinder; 15, baffle; 16, screen; 17, spring; 18, second motor; 19, rotating rod; 20, special-shaped plate; 21, collection box; 22, feed pipe; 23, belt; 24, round plate; 25, first pulley; 26, second pulley. DETAILED DESCRIPTION

[0027] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Those skilled in the art should understand that the embodiments described below are only some, not all, of the embodiments disclosed. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the scope of protection of the present utility model.

[0028] Example 1: As Figures 1-4 As shown, the technical solution adopted by this utility model is as follows: An automatic coal sample screening device includes a box body 1, a feed pipe 22 fixedly installed on the outer wall of the box body 1, and a placement plate 13 fixedly installed in the middle position inside the box body 1. A spherical groove is opened on the top of the placement plate 13. The feed pipe 22 passes through the box body 1 and the placement plate 13 and communicates with the spherical groove. The coal sample to be crushed can be transported into the spherical groove through the feed pipe 22.

[0029] A fixed cylinder 4 is fixedly installed inside the housing 1. A sliding plate 7 is slidably installed vertically inside the fixed cylinder 4. A rotating column 8 is rotatably installed at the bottom of the sliding plate 7. A crushing ball 11 is fixedly installed at the bottom of the rotating column 8. The crushing ball 11 is adapted to a spherical groove and is movably embedded in the spherical groove. A crushing block 12 is fixedly installed on the outer surface of the crushing ball 11 to improve the crushing effect.

[0030] The housing 1 is equipped with a driving mechanism that drives the sliding plate 7 to slide in the vertical direction. The sliding plate 7 is connected to the rotating column 8 through the first transmission component.

[0031] The drive mechanism includes a first motor 2, which is fixedly mounted on the outer surface of the housing 1. The output shaft of the first motor 2 extends rotatably into the housing 1 and is coaxially fixedly mounted with a connecting rod 3. The end of the connecting rod 3 not connected to the output shaft of the first motor 2 extends rotatably into the fixed cylinder 4 and is rotatably connected to the inner wall of the fixed cylinder 4. A gear 5 is fixedly sleeved on the outer surface of the connecting rod 3. A toothed plate 6 is fixedly mounted on the top of the sliding plate 7 in the vertical direction. The gear 5 meshes with the toothed plate 6 and maintains a meshed state at all times.

[0032] Start the first motor 2, and control the forward and reverse rotation of the output shaft of the first motor 2 to make the connecting rod 3 reciprocate, thereby driving the sliding plate 7 connected to the toothed plate 6 to move up and down in a straight line through the gear 5, so that the crushing ball 11 moves up and down in a straight line to crush the coal sample in the spherical trough.

[0033] The first transmission component includes a locking rod 9, which is fixedly mounted on the fixed cylinder 4. A movable groove 10 is opened on the outer surface of the rotating column 8. The movable groove 10 is arranged in a spiral shape, and one end of the locking rod 9 is limited and slidably mounted in the movable groove 10.

[0034] The up-and-down reciprocating movement of the sliding plate 7 drives the up-and-down reciprocating movement of the rotating column 8, so that the rotating column 8 is driven to reciprocate around its central axis under the pushing of the clamping rod 9, and in turn drives the synchronous reciprocating rotation of the crushing ball 11, so as to grind the coal sample. In this process, the clamping rod 9 and the movable groove 10 slide relative to each other.

[0035] The bottom of the placing plate 13 is provided with a baffle 15 located below the spherical groove for blocking the bottom of the spherical groove to facilitate discharging. The placing plate 13 is fixedly provided with a cylinder 14, and the extension shaft of the cylinder 14 is fixedly connected with the baffle 15. The baffle 15 can be driven to slide vertically by the cylinder 14, so as to block the bottom of the spherical groove to store the coal sample or open the bottom of the spherical groove for discharging.

[0036] The box body 1 is provided with a screen 16 sliding up and down in the vertical direction and a rotating rod 19 rotating in the horizontal direction. The screen 16 is located below the baffle 15, and the rotating rod 19 is located below the screen 16. The rotating rod 19 is in transmission cooperation with the screen 16.

[0037] The inner wall of the box body 1 is fixedly provided with a plurality of support blocks. The top of each support block is fixedly provided with a spring 17. The top of all the springs 17 is fixedly connected with the bottom of the screen 16.

[0038] The outer surface of the box body 1 is fixedly provided with a second motor 18. The output shaft of the second motor 18 is fixedly connected with one end of the rotating rod 19 in a same axis. The other end of the rotating rod 19 is rotationally connected with the inner wall of the box body 1. The outer surface of the rotating rod 19 is fixedly provided with a plurality of special-shaped plates 20. The outer surface of the special-shaped plate 20 is fixedly provided with a plurality of protrusions. The protrusions of the special-shaped plate 20 are in contact transmission cooperation with the bottom of the screen 16.

[0039] The protrusions of the special-shaped plate 20 are in contact with the bottom of the screen 16 by driving the rotating rod 19 to rotate by the second motor 18. Thus, the screen 16 is driven to slide up and down reciprocally under the cooperation of the spring 17, so as to improve the screening efficiency of the screen 16.

[0040] In addition, the box body 1 is provided with a collecting box 21 located below the screen 16. The screen 16 and the collecting box 21 are both movably provided with a movable door, so as to take out the coal sample on the top of the screen 16 which does not meet the screening requirement and the coal sample in the collecting box 21 which meets the screening requirement.

[0041] The working principle of the first embodiment is as follows: when in use, the coal sample to be crushed is conveyed into the spherical groove through the feeding pipe 22. The first motor 2 is started. The positive and negative rotation of the output shaft of the first motor 2 drives the connecting rod 3 to reciprocate, so as to drive the sliding plate 7 connected with the gear plate 6 to slide up and down linearly through the gear 5, and in turn drive the crushing ball 11 to slide up and down linearly, so as to crush the coal sample in the spherical groove.

[0042] Meanwhile, the reciprocating motion of the sliding plate 7 drives the rotating column 8 to reciprocate up and down, causing the rotating column 8 to rotate around its central axis under the push of the clamping rod 9. This, in turn, drives the crushing ball 11 to rotate synchronously, grinding the coal sample. During this process, the clamping rod 9 and the movable groove 10 slide relative to each other.

[0043] Then, cylinder 14 is activated, and the baffle 15 is driven to slide downward through the telescopic shaft of cylinder 14, thereby opening the bottom of the spherical groove and allowing the crushed and ground coal sample to fall onto the screen 16.

[0044] The screen 16 will screen the coal sample falling on its surface. The coal sample that meets the requirements will fall directly into the collection box 21, while the coal sample that does not meet the requirements will remain on the top of the screen 16. The coal sample that does not meet the screening requirements on the top of the screen 16 and the coal sample that meets the screening requirements in the collection box 21 can be taken out by opening the movable door.

[0045] In addition, the second motor 18 can be started, which drives the rotating rod 19 to rotate, so that the protrusion of the irregular plate 20 contacts the bottom of the screen 16, thereby driving the screen 16 to slide up and down in cooperation with the spring 17, thus improving the screening efficiency of the screen 16.

[0046] Example 2: Figures 5-6 As shown, the difference between this embodiment 2 and embodiment 1 is that the connecting rod 3 is connected to the rotating rod 19 through the second transmission component, and the outer surface of the rotating rod 19 is eccentrically provided with a circular plate 24.

[0047] The second transmission component includes a belt 23, a connecting rod 3 whose end is not connected to the output shaft of the first motor 2 extends rotatably to the outside of the housing 1 and is coaxially fixedly mounted on a first pulley 25, and a rotating rod 19 whose end extends rotatably to the outside of the housing 1 and is coaxially fixedly mounted on a second pulley 26. A belt 23 is sleeved between the first pulley 25 and the second pulley 26 for transmission.

[0048] The working principle of Example 2: During the rotation of the connecting rod 3 driven by the first motor 2, the first pulley 25 will rotate synchronously. The first pulley 25 will drive the second pulley 26 to rotate synchronously through the belt 23, so that the circular plate 24 rotates back and forth around the central axis of the rotating rod 19, thereby driving the screen 16 to slide up and down back and forth, improving the screening efficiency of the screen 16.

[0049] Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. An automatic coal sample screening device, comprising a box (1), a placing plate (13) is fixedly arranged in the box (1), and a spherical groove is formed in the top of the placing plate (13); a feeding pipe (22) is fixedly arranged on one side of the box (1), and the feeding pipe (22) communicates with the spherical groove through the placing plate (13); characterized in that, The fixed cylinder (4) is fixedly arranged in the box (1), the sliding plate (7) is arranged in the fixed cylinder (4) and is limited to slide in the vertical direction, the rotating column (8) is arranged at the bottom of the sliding plate (7) and rotates, and the breaking ball (11) is fixedly arranged at the bottom of the rotating column (8); the breaking ball (11) is matched with the spherical groove, the sliding plate (7) is in transmission cooperation with the rotating column (8) through the first transmission member, and the driving mechanism for driving the sliding plate (7) to reciprocatingly slide in the vertical direction is arranged on the box (1).

2. The automatic coal sample screening device according to claim 1, wherein, The first motor (2) is fixedly arranged on the outer surface of the box (1), the output shaft of the first motor (2) is fixedly arranged with the connecting rod (3), the connecting rod (3) extends into the fixed cylinder (4) and is fixedly arranged with the gear (5), the top of the sliding plate (7) is fixedly arranged with the toothed plate (6), the toothed plate (6) is in meshing transmission with the gear (5) and always keeps the meshing state.

3. The automatic coal sample screening device according to claim 1, wherein, The first transmission member includes the clamping rod (9), the clamping rod (9) is fixedly arranged on the fixed cylinder (4), the outer surface of the rotating column (8) is provided with the movable groove (10), the movable groove (10) is arranged in a spiral shape, and one end of the clamping rod (9) is limited to slide in the movable groove (10).

4. The automatic coal sample screening device according to claim 1, wherein, The bottom of the placing plate (13) is provided with the baffle (15), the baffle (15) is located below the spherical groove, the air cylinder (14) is fixedly arranged on the placing plate (13), and the telescopic shaft of the air cylinder (14) is fixedly connected with the baffle (15).

5. The automatic coal sample screening device according to claim 2, wherein, The screen (16) is arranged to slide in the vertical direction in the box (1), and the rotating rod (19) is arranged to rotate in the horizontal direction and is in transmission cooperation with the screen (16).

6. The automatic coal sample screening device according to claim 5, wherein, The second motor (18) is fixedly arranged on the outer surface of the box (1), the output shaft of the second motor (18) is fixedly connected with one end of the rotating rod (19) in a same shaft manner, the other end of the rotating rod (19) is rotationally connected with the inner wall of the box (1), a plurality of special-shaped plates (20) are fixedly arranged on the outer surface of the rotating rod (19), a plurality of protrusions are fixedly arranged on the outer surface of the special-shaped plate (20), and the plurality of protrusions of the special-shaped plate (20) are in contact transmission cooperation with the bottom of the screen (16).

7. The automatic coal sample screening device according to claim 5, wherein, A plurality of supporting blocks are fixedly arranged on the inner wall of the box (1), the top of each supporting block is fixedly arranged with the spring (17), and the top of all the springs (17) is fixedly connected with the bottom of the screen (16).

8. The automatic coal sample screening device according to claim 5, wherein, The connecting rod (3) is in transmission cooperation with the rotating rod (19) through the second transmission member, and the circular plate (24) is eccentrically arranged on the outer surface of the rotating rod (19); the second transmission member includes the belt (23), one end of the connecting rod (3) not connected with the output shaft of the first motor (2) extends to the outside of the box (1) in a rotating manner and is fixedly arranged with the first belt pulley (25) in a same shaft manner, one end of the rotating rod (19) extends to the outside of the box (1) in a rotating manner and is fixedly arranged with the second belt pulley (26) in a same shaft manner, and the belt (23) is arranged in transmission between the first belt pulley (25) and the second belt pulley (26).

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