Coal mine screening device

Abstract

The coal mine screening device comprises a box body, a first lifting plate and a second lifting plate are arranged on the left side and the right side of an inner cavity of the box body respectively, a plurality of sliding grooves are formed in the surface of the first lifting plate and the surface of the second lifting plate, and an adjusting rod is arranged in an inner cavity of each sliding groove. At the moment, a first lifting plate and a second lifting plate synchronously move up and down, after the first lifting plate and the second lifting plate move, an adjusting rod on the surface of each adjusting block moves in a corresponding sliding groove, and due to the fact that the directions and the angles between the sliding grooves are different, the adjusting blocks change at equal intervals under the action of the adjusting rods; according to the coal mine screening device, the multiple sliding rods are arranged, so that the distances between the multiple sliding rods are changed at equal intervals, the multiple sliding rods are changed at equal intervals, gaps between the multiple sliding rods are changed at the same time, and the coal mine screening device is suitable for conducting adaptive screening adjustment on a coal mine and is high in practicability.

Description

Technical Field

[0001] The utility model relates to the technical field of coal mine screening, in particular to a coal mine screening device. Background Art

[0002] Coal mines are areas where humans mine coal resources in coal-rich mining areas. They are generally divided into underground coal mines and open-pit coal mines. When the coal seam is far from the surface, it is generally chosen to dig tunnels underground to mine coal, which is an underground coal mine. When the coal seam is very close to the surface, it is generally chosen to directly strip the surface soil layer to mine coal, which is an open-pit coal mine.

[0003] The existing patent publication number is CN218360595U, which discloses a coal mine screening device, including a box, a screening hopper, a horizontal plate, a collection bin and a screen. Extension arms are welded at both ends of the inner wall of the box, and a servo motor is installed at one end of the bottom of the extension arm by screws. The power output end of the servo motor is connected to a cam. A screening hopper is arranged on the lower side of the top of the box body. Both ends of the screening hopper are welded with bumps, and one side of the bump is connected to a fixed arm. One side of the bottom end of the fixed arm is connected to a rubber guide wheel through a rotating shaft and the rubber guide wheel is located at the upper end of the cam. Extension plates are welded near the top of both ends of the screening hopper, and a spring seat is connected between the top of the extension plate and the top of the box body by screws. This new type has a double vibration mechanism, which can effectively improve the uniform effect during vibration and is suitable for wide promotion and use.

[0004] When screening existing coal mines, it is necessary to classify and collect coal of different sizes. However, when screening coal mine specifications, the existing coal mine screening device has limitations on the screening volume of coal mines and cannot be temporarily adjusted on site. Therefore, we propose a coal mine screening device to solve the above-mentioned problems. Utility Model Content

[0005] The purpose of this section is to summarize some aspects of the embodiments of the utility model and briefly introduce some preferred embodiments. Some simplifications or omissions may be made in this section and the abstract of the specification and the name of the utility model to avoid blurring the purpose of this section, the abstract of the specification and the name of the utility model, and such simplifications or omissions cannot be used to limit the scope of the utility model.

[0006] Therefore, the purpose of the utility model is to provide a coal mine screening device, which can solve the problem that when screening existing coal mines, it is necessary to classify and collect coal of different sizes, but the existing coal mine screening device has limitations on the screening volume of coal when screening the coal specifications, and cannot perform temporary adjustments on site.

[0007] In order to solve the above technical problems, the utility model provides a coal mine screening device, which adopts the following technical scheme: it includes a box body, and a first lifting plate and a second lifting plate are respectively provided on the left and right sides of the inner cavity of the box body, and a plurality of slide grooves are opened on the surfaces of the first lifting plate and the second lifting plate, and each of the slide grooves is provided with an adjusting rod in the inner cavity, and each of the adjusting rods passes through the corresponding slide groove, and each of the adjusting rods is slidably arranged in the corresponding slide groove, and an adjusting block is fixedly installed on the front side of each adjusting rod, and a sliding rod is fixedly installed between the adjacent adjusting blocks on the left and right sides, and each of the sliding rods is in a shape in which the circular diameter increases from left to right.

[0008] Optionally, support plates are fixedly installed on the inner walls on the left and right sides of the box body cavity, and two limit rods are fixedly installed between the support plate and the rear inner wall of the box body cavity.

[0009] By adopting the above technical solution, the present solution provides a limit rod, and the limit rod is used to adjust the block to be able to move stably on the limit rod.

[0010] Optionally, each of the adjustment blocks is located on two surfaces of the limiting rods, and each of the adjustment blocks is slidably disposed on the corresponding two surfaces of the limiting rods.

[0011] By adopting the above technical solution, the present solution provides an adjustment block, and the adjustment block can move stably on the limit rod.

[0012] Optionally, a first movable groove and a second movable groove are respectively opened on the left and right sides of the inner cavity of the box, the first movable groove is located at the lower left of the second movable groove, and positioning rods and screws are sequentially arranged from front to back between the top and bottom of the inner cavity of the first movable groove and the second movable groove.

[0013] By adopting the above technical solution, the present solution provides a positioning rod and a screw rod, the screw rod rotates to drive the first slider to move, and the first slider drives the second slider to slide on the positioning rod through the first lifting plate or the second lifting plate.

[0014] Optionally, the positioning rod is fixedly installed between the top and bottom of the inner cavity of the first movable groove or the second movable groove, the screw rod is rotatably connected between the top and bottom of the inner cavity of the first movable groove or the second movable groove, a first slider is slidably provided on the surface of the positioning rod, and a second slider is threadedly movably connected on the surface of the screw rod.

[0015] By adopting the above technical solution, the present solution provides a first slider and a second slider, and the movement of the first slider and the second slider can drive the first lifting plate or the second lifting plate therebetween to move up and down.

[0016] Optionally, the first lifting plate or the second lifting plate is fixedly mounted on the corresponding surfaces of the first slider and the second slider, the top ends of the two screw rods pass through the top of the box body, and sprockets are fixedly mounted on the top ends of the two screw rods, a chain is provided between the two sprockets to mesh, a motor is fixedly mounted on the top of the box body, and the bottom output end of the motor is fixedly connected to the top end of the left screw rod.

[0017] By adopting the above technical solution, the present solution starts the motor to drive the left screw to rotate, and the top end of the left screw drives the right screw to rotate synchronously through the sprocket and chain.

[0018] Optionally, a feeding pipe is fixedly installed on the top of the inner cavity of the box, and a plurality of discharge plates are fixedly installed in sequence from left to right on the bottom of the inner cavity of the box.

[0019] By adopting the above technical solution, this solution sets up a feeding pipe, and the staff can put the coal through the feeding pipe. After being screened by multiple sliding bars, the coal is classified and discharged through the discharging plate.

[0020] Optionally, a vacuum cleaner is fixedly installed on the rear side of the box body, a dust suction pipe is fixedly connected to the front output end of the vacuum cleaner, and the dust suction pipe is fixedly installed on the rear inner wall of the inner cavity of the box body.

[0021] By adopting the above technical solution, this solution sets up a vacuum cleaner. When the coal is poured into the screen, the internal dust is large. The dust can be discharged by setting up a vacuum pipe and a vacuum cleaner, thereby avoiding excessive dust accumulation.

[0022] To sum up, the utility model includes at least one of the following beneficial effects: 1. By setting a motor, the staff starts the motor, and the motor starts to drive the left screw to rotate. The top of the left screw drives the right screw to rotate synchronously through the sprocket and the chain. The rotation of the two screws drives the corresponding first slider to move. The first slider drives the second slider to slide on the positioning rod through the first lifting plate or the second lifting plate. At this time, the first lifting plate and the second lifting plate move up and down synchronously. When the first lifting plate and the second lifting plate move, the adjusting rod on the surface of each adjusting block moves inside the corresponding slide groove. Due to the different direction angles between the slide grooves, the adjusting block changes at equal intervals under the action of the adjusting rod, thereby changing the spacing between multiple slide rods at equal intervals, achieving equal spacing changes for multiple slide rods, so that the gaps between multiple slide rods change at the same time, which is suitable for adaptive screening adjustment of coal mines and has strong practicality.

[0023] 2. By setting up a vacuum cleaner, when the coal is poured into the screen, there will be a lot of dust inside. By setting up a vacuum pipe and a vacuum cleaner, the coal dust can be discharged, thereby avoiding excessive dust accumulation, reducing dust accumulation pollution, and protecting the health of workers. It is highly practical. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] In order to more clearly illustrate the technical solutions of the embodiments of the utility model, the drawings required for describing the embodiments are briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0025] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0026] Figure 2 It is a schematic diagram of the left side cross-section of the overall structure of the utility model;

[0027] Figure 3 It is a schematic diagram of the left side cross-section of another integral structure of the utility model;

[0028] Figure 4 It is a schematic diagram of the rear left side of the overall structure of the utility model.

[0029] Explanation of the accompanying drawings: 1. Box body; 2. First lifting plate; 3. Second lifting plate; 4. Slide groove; 5. Adjusting rod; 6. Adjusting block; 7. Slide rod; 8. Support plate; 9. Limiting rod; 10. First movable groove; 11. Second movable groove; 12. Positioning rod; 13. Screw; 14. First slider; 15. Second slider; 16. Sprocket; 17. Chain; 18. Motor; 19. Feeding pipe; 20. Discharging plate; 21. Vacuum cleaner; 22. Dust suction duct. DETAILED DESCRIPTION

[0030] The following is combined with Figure 1-4 The utility model is described in further detail.

[0031] Embodiment 1, refer to Figure 1-4 In this embodiment, in order to solve the problem that the existing coal mine needs to classify and collect coal of different sizes during screening, but the existing coal mine screening device has limitations on the screening volume of the coal mine when screening the coal mine specifications, and cannot perform temporary adjustments on site, the utility model discloses a coal mine screening device,

[0032] The utility model comprises a box body 1, wherein a first lifting plate 2 and a second lifting plate 3 are respectively provided on the left and right sides of the inner cavity of the box body 1, a plurality of slide grooves 4 are opened on the surface of the first lifting plate 2 and the second lifting plate 3, an adjusting rod 5 is provided in the inner cavity of each slide groove 4, each adjusting rod 5 passes through the inside of the corresponding slide groove 4, and each adjusting rod 5 is slidably arranged in the inside of the corresponding slide groove 4, an adjusting block 6 is fixedly installed on the front side of each adjusting rod 5, and a sliding rod 7 is fixedly installed between the adjacent adjusting blocks 6 on the left and right sides, and each sliding rod 7 is in a shape in which the circular diameter increases from left to right.

[0033] Support plates 8 are fixedly installed on the inner walls on the left and right sides of the inner cavity of the box body 1, and two limit rods 9 are fixedly installed between the support plate 8 and the inner wall on the rear side of the inner cavity of the box body 1.

[0034] Each adjusting block 6 is located on the surfaces of the two limiting rods 9 , and each adjusting block 6 is slidably disposed on the surfaces of the two corresponding limiting rods 9 .

[0035] A first movable groove 10 and a second movable groove 11 are respectively provided on the left and right sides of the inner cavity of the box body 1. The first movable groove 10 is located at the lower left of the second movable groove 11. A positioning rod 12 and a screw rod 13 are sequentially provided between the top and bottom of the inner cavity of the first movable groove 10 and the second movable groove 11 from front to back.

[0036] The positioning rod 12 is fixedly installed between the top and bottom of the inner cavity of the first movable groove 10 or the second movable groove 11, and the screw 13 is rotatably connected between the top and bottom of the inner cavity of the first movable groove 10 or the second movable groove 11. A first slider 14 is slidably provided on the surface of the positioning rod 12, and a second slider 15 is threadedly movably connected on the surface of the screw 13.

[0037] The first lifting plate 2 or the second lifting plate 3 is fixedly mounted on the surface of the corresponding first slider 14 and the second slider 15, the top ends of the two screw rods 13 pass through the top of the box body 1, and sprockets 16 are fixedly mounted on the top ends of the two screw rods 13, and a chain 17 is provided between the two sprocket wheels 16 for meshing, and a motor 18 is fixedly mounted on the top of the box body 1, and the bottom output end of the motor 18 is fixedly connected to the top end of the left screw rod 13.

[0038] A feeding pipe 19 is fixedly installed on the top of the inner cavity of the box body 1, and a plurality of discharge plates 20 are fixedly installed in sequence from left to right on the bottom of the inner cavity of the box body 1.

[0039] A dust collector 21 is fixedly installed on the rear side of the box body 1 , a dust collection pipe 22 is fixedly connected to the front output end of the dust collector 21 , and the dust collection pipe 22 is fixedly installed on the inner wall of the rear side of the inner cavity of the box body 1 .

[0040] The specific working principle is: first, the staff starts the motor 18, the motor 18 starts to drive the left screw 13 to rotate, the top of the left screw 13 drives the right screw 13 to rotate synchronously through the sprocket 16 and the chain 17, the two screws 13 rotate to drive the corresponding first slider 14 to move, the first slider 14 drives the second slider 15 to slide on the positioning rod 12 through the first lifting plate 2 or the second lifting plate 3, at this time the first lifting plate 2 and the second lifting plate 3 move up and down synchronously, when the first lifting plate 2 and the second lifting plate 3 move, the adjusting rod 5 on the surface of each adjusting block 6 moves inside the corresponding slide groove 4, due to the direction angle between the slide grooves 4 The degree is different. The adjusting block 6 changes at equal intervals under the action of the adjusting rod 5, thereby changing the intervals between the multiple slide bars 7 at equal intervals. The multiple slide bars 7 are changed at equal intervals, so that the gaps between the multiple slide bars 7 are changed at the same time, which is suitable for adaptive screening adjustment of coal mines. Subsequently, the coal mines are fed through the feeding pipe 19. After being screened by multiple slide bars 7, the coal mines are classified and discharged through the discharging plate 20. After the coal mines are poured into the screening, the internal dust is relatively large. The dust collection pipe 22 and the dust collector 21 can be set to discharge the coal mine dust, thereby avoiding excessive dust accumulation, reducing dust accumulation pollution, and protecting the health of the staff.

[0041] The above are all preferred embodiments of the present utility model, and are not intended to limit the protection scope of the present utility model. Therefore, any equivalent changes made based on the structure, shape, and principle of the present utility model should be included in the protection scope of the present utility model.

Claims

1. A coal mine screening device, comprising a housing (1), characterized in that: A first lifting plate (2) and a second lifting plate (3) are respectively provided on the left and right sides of the inner cavity of the box body (1); a plurality of slide grooves (4) are provided on the surface of the first lifting plate (2) and the second lifting plate (3); an adjusting rod (5) is provided in the inner cavity of each slide groove (4); each adjusting rod (5) passes through the inside of the corresponding slide groove (4); and each adjusting rod (5) is slidably arranged in the inside of the corresponding slide groove (4); an adjusting block (6) is fixedly installed on the front side of each adjusting rod (5); and a sliding rod (7) is fixedly installed between the adjacent adjusting blocks (6) on the left and right sides; and each sliding rod (7) is in a shape with a circular diameter increasing from left to right.

2. A coal mine screening device according to claim 1, characterized in that: Support plates (8) are fixedly mounted on the inner walls on both the left and right sides of the inner cavity of the box body (1), and two limit rods (9) are fixedly mounted between the support plate (8) and the inner wall on the rear side of the inner cavity of the box body (1).

3. A coal mine screening device according to claim 1, characterized in that: Each of the adjustment blocks (6) is located on the surfaces of the two limiting rods (9), and each of the adjustment blocks (6) is slidably arranged on the surfaces of the corresponding two limiting rods (9).

4. A coal mine screening device according to claim 1, characterized in that: A first movable groove (10) and a second movable groove (11) are respectively provided on the left and right sides of the inner cavity of the box body (1), the first movable groove (10) is located at the lower left of the second movable groove (11), and a positioning rod (12) and a screw rod (13) are sequentially provided between the top and the bottom of the inner cavity of the first movable groove (10) and the second movable groove (11) from front to back.

5. A coal mine screening device according to claim 4, characterized in that: The positioning rod (12) is fixedly installed between the top and bottom of the inner cavity of the first movable groove (10) or the second movable groove (11); the screw rod (13) is rotatably connected between the top and bottom of the inner cavity of the first movable groove (10) or the second movable groove (11); a first slider (14) is slidably provided on the surface of the positioning rod (12); and a second slider (15) is movably connected to the surface of the screw rod (13) by a thread.

6. A coal mine screening device according to claim 5, characterized in that: The first lifting plate (2) or the second lifting plate (3) is fixedly mounted on the surface of the corresponding first slider (14) and the second slider (15); the top ends of the two screw rods (13) pass through the top of the box body (1); and sprocket wheels (16) are fixedly mounted on the top ends of the two screw rods (13); a chain (17) is provided between the two sprocket wheels (16) for meshing; a motor (18) is fixedly mounted on the top of the box body (1); and the bottom output end of the motor (18) is fixedly connected to the top end of the left screw rod (13).

7. A coal mine screening device according to claim 1, characterized in that: A feeding pipe (19) is fixedly installed on the top of the inner cavity of the box body (1), and a plurality of discharge plates (20) are fixedly installed in sequence from left to right on the bottom of the inner cavity of the box body (1).

8. A coal mine screening device according to claim 1, characterized in that: A dust collector (21) is fixedly mounted on the rear side of the box (1); a dust collection pipe (22) is fixedly connected to the front output end of the dust collector (21); and the dust collection pipe (22) is fixedly mounted on the inner wall of the rear side of the inner cavity of the box (1).

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