Self-cleaning combined screen piece cross screen

Abstract

The utility model relates to the technical field of coal mines, in particular to a self-cleaning combined screen piece cross screen. The device comprises a bottom frame, three screening nets are fixedly connected to the bottom frame, mounting grooves are formed in one sides of the three screening nets, discharging hoppers are fixedly connected to one sides of the three screening nets, cleaning brushes are slidably connected to the interiors of the three mounting grooves, and pulling mechanisms are arranged on the two sides of the three cleaning brushes. The multiple sets of pulling mechanisms are connected with the three screening nets correspondingly, each set of pulling mechanism comprises a sliding groove, a first spring, a sliding block, a pulling rope and a winding drum, the sliding grooves are formed in one sides of the screening nets, the sliding blocks are slidably connected into the sliding grooves, the first springs are fixedly connected between the sliding grooves and the sliding blocks, and the pulling ropes are fixedly connected to one sides of the sliding blocks; and the pulling rope movably penetrates through one side of the screening net, pulverized coal can be swept after coal screening, automatic cleaning is carried out, and the situation that meshes are blocked due to long-term accumulation of the pulverized coal is prevented.

Description

Technical Field

[0001] The utility model relates to the technical field of coal mines, in particular to a self-cleaning combined screen plate cross screen. 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 publication number is CN216965335U, a self-cleaning combined screen cross screen, which belongs to the field of material screening technology, including a base, the top of which is fixedly connected to two support plates, and the opposite sides of the two support plates are movably connected to the first screening box, the second screening box and the third screening box through a connecting belt, and one side of the first screening box, the second screening box and the third screening box is fixedly connected to a vibrator. By setting the first screening box, the second screening box, the filter port and the filter plate, etc., it is convenient to carry out multi-stage screening and filtering of the coal mine, and it is convenient for the staff to judge the screening situation of the coal mine when using it. By setting the vibrator, the discharge port and the baffle, it is convenient to vibrate and screen the coal mine put in. By setting the first storage box, the storage cavity and the second storage cavity, it is convenient to collect the screened coal mine and facilitate the staff to carry out unified processing. By setting the lighting lamp, it is convenient to illuminate during screening;

[0004] When the coal is screened through a cross screen, a large amount of coal powder will remain on the screen after screening. If the coal powder accumulates for a long time and becomes damp, it will cause the mesh of the screen to be clogged, affecting the next screening effect of the screening machine. Utility Model Content

[0005] In view of the deficiencies in the prior art, the purpose of the utility model is to provide a self-cleaning combined screen cross screen, which can clean the coal powder on the screen after the coal blocks are screened, thereby preventing the coal powder from clogging the screen holes due to long-term accumulation.

[0006] The above technical objectives of the utility model are achieved through the following technical solutions:

[0007] A self-cleaning combined screen cross screen comprises a base frame, wherein three screening meshes are fixedly connected to the base frame, one side of the three screening meshes are provided with mounting grooves, one side of the three screening meshes are fixedly connected with a discharge hopper, and cleaning brushes are slidably connected in the three mounting grooves, pulling mechanisms are arranged on both sides of the three cleaning brushes, and multiple groups of pulling mechanisms are respectively connected to the three screening meshes, each group of the pulling mechanisms comprises a slide groove, a first spring, a slider, a traction rope and a drum, the slide groove is opened on one side of the screening mesh, the slider is slidably connected in the slide groove, the first spring is fixedly connected between the slide groove and the slider, the traction rope is fixedly connected to one side of the slider, and the traction rope movably passes through one side of the screening mesh, the drum is connected to one side of the screening mesh through a fixed plate, the traction rope is fixedly connected to the circumferential side of the drum, and the slider is connected to one side of the cleaning brush through an elastic mechanism.

[0008] By adopting the above technical solution, the pulling mechanism, the mounting groove, the pulling mechanism, the screening net and the cleaning brush can cooperate to clean the coal powder after the coal is screened, thereby performing automatic cleaning.

[0009] In a preferred example, the utility model can be further configured as follows: each group of the elastic mechanism includes a rectangular groove, a second spring and a rectangular block, the rectangular groove is opened on one side of the slider, the second spring is fixedly connected to the inner top wall of the rectangular groove, the rectangular block is fixedly connected to the lower end of the second spring, and the cleaning brush is fixedly connected to one side of the rectangular block.

[0010] By adopting the above technical solution, the elastic mechanism and the cleaning brush cooperate, so that the cleaning brush can shake during the movement and bounce slightly up and down, thereby improving the cleaning effect.

[0011] In a preferred example, the utility model can be further configured as follows: a limit rod is fixedly connected between the inner top wall and the inner bottom wall of the rectangular groove, and the rectangular block is slidably connected to the circumferential side of the limit rod.

[0012] By adopting the above technical solution, the rectangular block and the limiting rod are slidably matched, which can improve the movement stability of the rectangular block.

[0013] In a preferred example, the utility model can be further configured as follows: a connecting mechanism is provided on each two of the reels, each group of the connecting mechanisms includes a motor and a connecting rod, the connecting rod is fixedly connected between the two reels, the motor is fixedly connected to one side of one of the fixed plates, and the output end of the motor is fixed to the reel.

[0014] By adopting the above technical solution, the connecting mechanism can drive the two reels on the screen to rotate together.

[0015] In a preferred example, the utility model can be further configured as follows: one side of the three cleaning brushes is fixedly connected with a mounting plate, and the lower ends of the three mounting plates are fixedly connected with a plurality of pusher teeth.

[0016] By adopting the above technical solution, the mounting plate and the pushing teeth can comb the coal blocks, making it easier to spread the coal blocks.

[0017] In a preferred example, the utility model can be further configured as follows: each group of the pulling mechanisms further includes a limiting groove, the limiting groove is opened on one side of the sliding groove, and the sliding block is slidably connected in the limiting groove.

[0018] By adopting the above technical solution, the limiting groove and the slider are slidably matched, which can improve the movement stability of the slider.

[0019] In summary, the present invention includes at least one of the following beneficial technical effects:

[0020] 1. A pulling mechanism, an installation groove, a pulling mechanism, a screening mesh, and a cleaning brush are provided. The coal blocks are added to the uppermost screening mesh, and the coal blocks roll down. After being filtered by multiple screening meshes, the motor is started, and the output end of the motor drives the drum to rotate, and the connecting rod drives the two drums to rotate. The traction rope gradually separates from the circumferential side of the drum. The first spring drives the slider to move due to its own elastic recovery, so that the cleaning brush can be moved to clean the screening mesh. The coal powder can be cleaned after the coal is screened, and automatic cleaning is performed to prevent the mesh from being blocked due to long-term accumulation of coal powder.

[0021] 2. An elastic mechanism, a mounting plate and a pusher tooth are provided. When the cleaning brush moves, the cleaning brush shakes. The second spring drives the cleaning brush to bounce up and down due to its own elasticity. The cleaning brush can clean the bottom of the screen while shaking it. The mounting plate and the pusher tooth can spread out the coal blocks piled together. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 is a stereogram of this embodiment;

[0023] Figure 2 is a first stereoscopic cross-sectional view of the present embodiment;

[0024] Figure 3 is a second stereoscopic cross-sectional view of the present embodiment;

[0025] Figure 4 This embodiment Figure 3 A partial enlarged view of the middle A;

[0026] Figure 5 This embodiment Figure 3 A partial enlarged view of point B in the middle.

[0027] In the figure, 1, base frame; 2, discharge hopper; 3, screening net; 4, connecting mechanism; 401, motor; 402, connecting rod; 5, pulling mechanism; 501, slide groove; 502, first spring; 503, slider; 504, traction rope; 505, reel; 506, fixed plate; 507, limit groove; 6, mounting plate; 7, push tooth; 8, mounting groove; 9, cleaning brush; 10, elastic mechanism; 1001, rectangular groove; 1002, second spring; 1003, limit rod; 1004, rectangular block. DETAILED DESCRIPTION

[0028] The utility model is further described in detail below in conjunction with the accompanying drawings.

[0029] Example:

[0030] Reference Figure 1-5 The utility model discloses a self-cleaning combined screen cross screen, including a base frame 1, three screening nets 3 are fixedly connected to the base frame 1, one side of the three screening nets 3 is provided with a mounting groove 8, one side of the three screening nets 3 is fixedly connected with a discharge hopper 2, the three mounting grooves 8 are slidably connected with a cleaning brush 9, both sides of the three cleaning brushes 9 are provided with a pulling mechanism 5, and multiple groups of pulling mechanisms 5 are respectively connected with the three screening nets 3, each group of pulling mechanisms 5 includes a slide 501, a first spring 502, a slider 503, a traction rope 504 and a reel 505, the slide 501 is opened on one side of the screening net 3, the slider 503 is slidably connected in the slide 501, the first spring 502 is fixedly connected between the slide 501 and the slider 503, the traction rope 504 is fixedly connected to one side of the slider 503, and the traction rope 504 movably passes through one side of the screening net 3, and the reel 505 The drum 505 is connected to one side of the screening mesh 3 through a fixed plate 506. Preferably, the fixed plate 506 is fixedly connected to one side of the screening mesh 3. The drum 505 is rotatably connected to one side of the fixed plate 506. The traction rope 504 is fixedly connected to the circumferential side of the drum 505. The slider 503 is connected to one side of the cleaning brush 9 through the elastic mechanism 10. The coal blocks are added to the uppermost screening mesh 3, and the coal blocks roll down. After being filtered by multiple screening meshes 3, the motor 401 is started. The output end of the motor 401 drives the drum 505 to rotate, and the connecting rod 402 drives the two drums 505 to rotate. The traction rope 504 gradually detaches from the circumferential side of the drum 505. The first spring 502 drives the slider 503 to move due to its own elastic recovery, so that the cleaning brush 9 can be moved to clean the screen of the screening mesh 3. The coal powder can be cleaned after the coal is screened, and automatic cleaning is performed.

[0031] Each group of bouncing mechanisms 10 includes a rectangular groove 1001, a second spring 1002 and a rectangular block 1004. The rectangular groove 1001 is opened on one side of the slider 503. The second spring 1002 is fixedly connected to the inner top wall of the rectangular groove 1001. The rectangular block 1004 is fixedly connected to the lower end of the second spring 1002. The cleaning brush 9 is fixedly connected to one side of the rectangular block 1004. The cleaning brush 9 shakes during the movement. The second spring 1002 can bounce up and down due to its own elasticity. The cleaning brush 9 can clean the bottom of the screen 3 while shaking and cleaning. The mounting plate 6 and the pusher tooth 7 can spread out the piled-up coal blocks.

[0032] A limiting rod 1003 is fixedly connected between the inner top wall and the inner bottom wall of the rectangular groove 1001, and the rectangular block 1004 is slidably connected to the circumferential side of the limiting rod 1003. The rectangular block 1004 and the limiting rod 1003 are slidably matched to improve the movement stability of the rectangular block 1004.

[0033] A connecting mechanism 4 is provided on every two reels 505, and each group of connecting mechanisms 4 includes a motor 401 and a connecting rod 402. The connecting rod 402 is fixedly connected between the two reels 505, and the motor 401 is fixedly connected to one side of one of the fixed plates 506, and the output end of the motor 401 is fixed to the reel 505. When the motor 401 is started, the output end of the motor 401 drives the reel 505 to rotate, and the connecting rod 402 drives the two reels 505 to rotate.

[0034] One side of the three cleaning brushes 9 is fixedly connected with a mounting plate 6, and the lower ends of the three mounting plates 6 are fixedly connected with a plurality of pushing teeth 7. The mounting plate 6 and the pushing teeth 7 can comb the coal blocks to facilitate the dispersion of the coal blocks.

[0035] Each group of pulling mechanisms 5 also includes a limiting groove 507, which is opened on one side of the slide groove 501, and the slider 503 is slidably connected in the limiting groove 507. The limiting groove 507 and the slider 503 are slidably matched to improve the movement stability of the slider 503.

[0036] The implementation principle of the above embodiment is: coal blocks are added to the uppermost screen 3, the coal blocks roll downward, and are filtered through multiple screens 3, the motor 401 is started, the output end of the motor 401 drives the drum 505 to rotate, the connecting rod 402 drives the two drums 505 to rotate, the traction rope 504 gradually separates from the circumferential side of the drum 505, and the first spring 502 drives the slider 503 to move due to its own elastic recovery, so that the cleaning brush 9 can be moved to clean the screen of the screen 3, and the coal powder can be cleaned after the coal is screened, and automatic cleaning can be performed.

[0037] The contents not described in detail in this specification belong to the prior art known to professional and technical personnel in this field.

[0038] The embodiments of this specific implementation method are all preferred embodiments of the utility model, and are not intended to limit the protection scope of the utility model. Therefore, all equivalent changes made based on the structure, shape, and principle of the utility model should be included in the protection scope of the utility model.

Claims

1. A self-cleaning combined screen cross screen, comprising a base frame (1), characterized in that: Three sieves (3) are fixedly connected to the base frame (1), one side of each of the three sieves (3) is provided with a mounting groove (8), one side of each of the three sieves (3) is fixedly connected with a discharge hopper (2), the three mounting grooves (8) are slidably connected with a cleaning brush (9), both sides of each of the three cleaning brushes (9) are provided with a pulling mechanism (5), and multiple groups of pulling mechanisms (5) are respectively connected to the three sieves (3), each group of the pulling mechanisms (5) comprises a slide groove (501), a first spring (502), a slider (503), a traction rope (504) and a reel (505), the slide groove (501) ) is opened on one side of the sieve (3), the slider (503) is slidably connected in the slide groove (501), the first spring (502) is fixedly connected between the slide groove (501) and the slider (503), the traction rope (504) is fixedly connected to one side of the slider (503), and the traction rope (504) movably passes through one side of the sieve (3), the reel (505) is connected to one side of the sieve (3) through a fixed plate (506), the traction rope (504) is fixedly connected to the circumferential side of the reel (505), and the slider (503) is connected to one side of the cleaning brush (9) through an elastic mechanism (10).

2. A self-cleaning combined screen cross screen according to claim 1, characterized in that: Each group of the elastic mechanism (10) comprises a rectangular groove (1001), a second spring (1002) and a rectangular block (1004); the rectangular groove (1001) is opened on one side of the slider (503); the second spring (1002) is fixedly connected to the inner top wall of the rectangular groove (1001); the rectangular block (1004) is fixedly connected to the lower end of the second spring (1002); and the cleaning brush (9) is fixedly connected to one side of the rectangular block (1004).

3. A self-cleaning combined screen cross screen according to claim 2, characterized in that: A limiting rod (1003) is fixedly connected between the inner top wall and the inner bottom wall of the rectangular groove (1001), and the rectangular block (1004) is slidably connected to the circumferential side of the limiting rod (1003).

4. A self-cleaning combined screen cross screen according to claim 1, characterized in that: Each of the two reels (505) is provided with a connecting mechanism (4), and each group of the connecting mechanisms (4) comprises a motor (401) and a connecting rod (402), wherein the connecting rod (402) is fixedly connected between the two reels (505), the motor (401) is fixedly connected to one side of one of the fixing plates (506), and the output end of the motor (401) is fixed to the reel (505).

5. The self-cleaning combined screen cross screen according to claim 1, characterized in that: One side of the three cleaning brushes (9) is fixedly connected to a mounting plate (6), and the lower ends of the three mounting plates (6) are fixedly connected to a plurality of pusher teeth (7).

6. A self-cleaning combined screen cross screen according to claim 1, characterized in that: Each group of the pulling mechanisms (5) further comprises a limiting groove (507), wherein the limiting groove (507) is arranged on one side of the sliding groove (501), and the sliding block (503) is slidably connected in the limiting groove (507).

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