Coal mine screening equipment for coal mining

Abstract

The utility model relates to the technical field of coal mining, and discloses a coal mine screening device for coal mining, which comprises a screening box, two rotating rods penetrate through the screening box and are rotatably connected with the screening box, the outer rings of the right sides of the rotating rods are fixedly connected with gears, and the outer part of the right side of the screening box is fixedly connected with a first motor; the output end of the first motor is fixedly connected with the tail end of the right side of the rear rotating rod, crushing rollers are fixedly connected to the outer rings of the rotating rods, cleaning assemblies penetrate through the front side and the rear side of the screening box and are arranged on the front side and the rear side of the screening box, supporting columns are fixedly connected to the four corners of the bottom of the screening box, and a supporting plate is fixedly connected between the left supporting column and the right supporting column. According to the coal mine crushing device, the gear, the rotating rod, the first motor, the crushing roller, the electric push rod, the cleaning brush and the connecting plate work in a matched mode, large coal mines can be crushed, blockage of the screen is prevented, and coal mine residues outside the crushing roller can be cleared away in cooperation with the cleaning assembly.

Description

Technical Field

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

[0002] Coal is the most important solid fuel and a type of combustible organic rock. It is formed by lush plants growing in a certain geological age. In a suitable geological environment, it gradually accumulates into thick layers and is buried in water or mud. It is formed by natural coalification over a long geological period. Coal mines are an important energy source in my country. Coal mines need to be mined with special equipment, and the coal mines need to be screened and processed after mining.

[0003] Most existing coal screening equipment pours the coal into a filter box, screens the coal through the filter plates in the filter box, and finally collects the screened and filtered coal through a collection box.

[0004] However, when the coal blocks are of different sizes, larger and heavier coal blocks will damage the screen in the coal screening equipment and easily cause coal blocks to accumulate, and the size of the screen holes cannot be adjusted according to needs. In response to the above problems, a coal screening equipment for coal mining is proposed. Utility Model Content

[0005] The purpose of the utility model is to provide a coal screening device used in coal mining, which solves the problem in the background technology that larger and heavier coal will damage the screen in the coal screening equipment, easily cause coal blocks to accumulate, and the size of the screen holes cannot be adjusted according to needs.

[0006] To achieve the above-mentioned object, the utility model provides the following technical solution: A coal screening equipment used in coal mining, comprising a screening box, wherein two rotating rods are passed through and rotatably connected in the screening box, a gear is fixedly connected to the outer ring of the right side of the rotating rod, a first motor is fixedly connected to the outside of the right side of the screening box, an output end of the first motor is fixedly connected to the right end of the rotating rod at the rear, a crushing roller is fixedly connected to the outer ring of the rotating rod, a cleaning assembly is passed through and provided on the front and rear sides of the screening box, support columns are fixedly connected to the four corners of the bottom of the screening box, a support plate is fixedly connected between the left and right support columns, two springs are fixedly connected to the top of the support plate, a screening frame is fixedly connected to the top of the spring, a slide groove is provided on adjacent sides of the screening frame, an adjustable screen is slidably connected in the slide groove, a support frame is fixedly connected to the front and rear ends of the left side of the screening frame, a threaded rod is passed through and threadedly connected in the support frame, an inward end of the threaded rod is rotatably connected to the adjustable screen, a vibration motor is fixedly connected to the lower front side of the screening frame, a feed inlet is provided at the top of the screening box, and a discharge outlet is provided at the bottom of the screening box.

[0007] By adopting the above technical solution, the adjustment screen can be driven to slide in the slide groove by rotating the threaded rod, so that the adjustment screen and the screen holes of the fixed screen are misaligned, so that the size of the screen holes can be adjusted according to needs.

[0008] As a further description of the above technical solution: the cleaning assembly includes a storage box, both of the storage boxes are fixedly connected to the outside of the screening box, two electric push rods are fixedly connected in the storage box, the output end of the electric push rod is fixedly connected to a connecting plate, and a cleaning brush is fixedly connected to the outside of the connecting plate.

[0009] By adopting the above technical solution, the cleaning component can control the cleaning brush to extend and retract from the storage box to complete the cleaning of the coal mine residue outside the crushing roller.

[0010] As a further description of the above technical solution: a connecting frame is fixedly connected to the bottom of the first motor, and the bottom of the connecting frame is fixedly connected to the outside of the screening box.

[0011] By adopting the above technical solution, the first motor can be supported and fixed by the connecting frame.

[0012] As a further description of the above technical solution: the gear is arranged outside the screening box, and the two gears are meshed and connected.

[0013] By adopting the above technical solution, a transmission effect is achieved, which facilitates the simultaneous rotation of the two crushing rollers.

[0014] As a further description of the above technical solution: a fixed screen is provided on the top of the adjustable screen, and the fixed screen is fixedly connected to the screening frame.

[0015] By adopting the above technical solution, the sizes and numbers of the sieve holes of the adjustable sieve and the fixed sieve are corresponding.

[0016] As a further description of the above technical solution: a knob is fixedly connected to the outward end of the threaded rod, and the knob is arranged on the outside of the support frame.

[0017] By adopting the above technical solution, the threaded rod can be easily driven to rotate by the knob.

[0018] As a further description of the above technical solution: a collection box is provided below the adjusting screen, and a collection box is provided on the right side of the collection box.

[0019] By adopting the above technical solution, the collecting box is used to collect the screened coal, and a collecting box is provided on one side of the collecting box to collect the coal that has not passed the screening.

[0020] As a further description of the above technical solution: the cleaning brush is arranged in the storage box, and the cleaning brush is arranged outside the crushing roller.

[0021] By adopting the above technical solution, the cleaning brush can be used to clean the residue outside the crushing roller.

[0022] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0023] 1. The utility model provides a coal screening equipment used in coal mine mining. First, the adjustable screen, fixed screen, screening frame, chute, threaded rod, knob, collection box, support column and vibration motor work together. The rotation of the threaded rod can drive the adjustable screen to slide in the chute, so that the sieve holes of the adjustable screen and the fixed screen are misaligned, so that the size of the sieve holes can be adjusted according to needs, and the vibration motor can vibrate the adjustable screen and the screening frame, and the spring can drive the fixed screen to vibrate, so that the screening effect is better.

[0024] 2. The utility model provides a coal screening device used in coal mining. The gears, rotating rods, first motors, crushing rollers, storage boxes, electric push rods, cleaning brushes, first motors and connecting plates work together. The two crushing rollers rotate simultaneously to crush large pieces of coal to prevent the screen from being blocked. The cleaning component can also be used to clean the coal residue outside the crushing rollers. BRIEF DESCRIPTION OF THE DRAWINGS

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

[0026] Figure 2 This is an exploded view of the overall structure of the utility model;

[0027] Figure 3 This is a schematic diagram of the structure of the vibration motor of the present utility model;

[0028] Figure 4 This is a schematic diagram of the screening frame structure of the present utility model.

[0029] In the figure: 1. Screening box; 2. Rotating rod; 3. Gear; 4. First motor; 5. Crushing roller; 6. Storage box; 7. Electric push rod; 8. Connecting plate; 9. Cleaning brush; 10. Support column; 11. Support plate; 12. Spring; 13. Screening frame; 14. Slide; 15. Adjusting screen; 16. Fixing screen; 17. Threaded rod; 18. Knob; 19. Collecting box; 20. Collecting box; 21. Connecting frame; 22. Vibrating motor; 23. Discharge port; 24. Feed port. DETAILED DESCRIPTION

[0030] The following will refer to the accompanying drawings of the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0031] In order to further understand the content of the present invention, the present invention is described in detail with reference to the accompanying drawings.

[0032] Reference Figure 1-4 The utility model relates to a coal screening equipment used in coal mine mining, comprising a screening box 1, wherein the screening box 1 has two rotating rods 2 passing through and rotatably connected therein, the outer ring of the rotating rod 2 on the right side is fixedly connected to a gear 3, the right side of the screening box 1 is fixedly connected to the outside of the first motor 4, the rotating rod 2 can be driven to rotate by the first motor 4, the output end of the first motor 4 is fixedly connected to the right end of the rear rotating rod 2, the outer ring of the rotating rod 2 is fixedly connected to a crushing roller 5, and the large pieces of coal can be crushed by the rotation of the crushing roller 5 to prevent them from clogging the screen, the front and rear sides of the screening box 1 are penetrated and provided with a cleaning assembly, the four corners of the bottom of the screening box 1 are fixedly connected to support columns 10, the support columns 10 play a supporting effect on the bottom of the screening box 1, and a support plate 11 is fixedly connected between the left and right support columns 10, the support plate 11 plays a connecting and supporting effect, and the top of the support plate 11 is fixedly connected to The two springs 12 are fixedly connected to the screening frame 13 at the top of the spring 12, and the screening frame 13 can be supported by the spring 12. A slide groove 14 is provided on the adjacent side of the screening frame 13, and an adjusting screen 15 is slidably connected in the slide groove 14, so that the adjusting screen 15 can slide in the slide groove 14. The front and rear ends of the left side of the screening frame 13 are fixedly connected to the support frame 25, which plays a supporting effect on the threaded rod 17. A threaded rod 17 is passed through and threadedly connected to the support frame 25, and one end of the threaded rod 17 is rotatably connected to the adjusting screen 15 through the rotation of the threaded rod 17. The adjusting screen 15 can be driven to move by the rotation of the threaded rod 17. A vibration motor 22 is fixedly connected to the lower front side of the screening frame 13, and the screening frame 13 can be vibrated by the vibration motor 22. A feeding port 24 is provided at the top of the screening box 1, and a discharging port 23 is provided at the bottom of the screening box 1, which is convenient for coal mine raw materials to enter and go out.

[0033] Reference Figure 2The cleaning component includes a storage box 6. The two storage boxes 6 are fixedly connected to the outside of the screening box 1. Two electric push rods 7 are fixedly connected to the storage box 6. The output end of the electric push rod 7 is fixedly connected to a connecting plate 8. The connecting plate 8 can also play an isolation effect to prevent coal mines from entering the storage box 6. A cleaning brush 9 is fixedly connected to the outside of the connecting plate 8. The cleaning brush 9 is arranged in the storage box 6 and the cleaning brush 9 is arranged on the outside of the crushing roller 5. The cleaning component can control the cleaning brush 9 to retract from the storage box 6 to complete the cleaning of the coal mine residue outside the crushing roller 5.

[0034] Reference Figure 2 、 Figure 3 and Figure 4 The bottom of the first motor 4 is fixedly connected to a connecting frame 21, and the bottom of the connecting frame 21 is fixedly connected to the outside of the screening box 1. The first motor 4 can be supported and fixed by the connecting frame 21. A collecting box 19 is provided below the adjusting screen 15. The collecting box 19 is used to collect the screened coal. A collecting box 20 is also provided on one side of the collecting box 19 to collect the screened coal. The gear 3 is provided on the outside of the screening box 1, and the two gears 3 are meshed and connected to achieve a transmission effect, which facilitates the simultaneous rotation of the two crushing rollers 5. A fixed screen 16 is provided on the top of the adjusting screen 15, and the fixed screen 16 is fixedly connected to the screening frame 13. The outward end of the threaded rod 17 is fixedly connected to a knob 18, and the knob 18 is provided on the outside of the support frame 25. The threaded rod 17 can be driven to rotate by the knob 18.

[0035] Working principle: When working, the coal to be screened is poured into the screening box 1 from the upper feed port 24, and the first motor 4 is started at the same time to drive the rotating rod 2 and the gear 3 at the rear to rotate. The two gears 3 are engaged and connected to drive the two rotating rods 2 and the crushing roller 5 to rotate at the same time to crush the large pieces of coal. The crushed coal falls onto the inclined fixed screen 16 through the discharge port 23 below. At the same time, the vibration motor 22 is started to vibrate the screening frame 13, the adjustable screen 15 and the fixed screen 16. The screening effect of the coal on the fixed screen 16 can be improved by cooperating with the screening frame 13 and the spring 12. The screened coal falls into the collection box The coal is collected in filter 19, and the coal that is not filtered out falls into the collection box 20 through the inclined filter screen. When the size of the sieve hole needs to be adjusted, the knob 18 is turned to drive the threaded rod 17 to rotate. The threaded rod 17 can drive the adjusting screen 15 to slide in the chute 14, so that the sieve holes of the adjusting screen 15 and the fixed screen 16 are misaligned, so that the size of the sieve hole can be adjusted as needed. When the crushing roller 5 needs to be cleaned after use, the first motor 4 is started to drive the two crushing rollers 5 to rotate slowly, and at the same time, the electric push rod 7 is started to drive the connecting plate 8 and the cleaning brush 9 to extend from the storage box 6 to the outside of the crushing roller 5, and the residue on the outside of the crushing roller 5 is cleaned by the cleaning brush 9.

[0036] It should be noted that, in this document, relational terms such as first and second, etc., are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the terms "comprises," "comprising," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that includes a list of elements includes not only those elements but also other elements not explicitly listed, or elements inherent to such process, method, article, or apparatus.

[0037] Although the embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations may be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A coal screening device for coal mining, comprising a screening box (1), characterized in that: Two rotating rods (2) are passed through and rotatably connected in the screening box (1), and a gear (3) is fixedly connected to the outer ring of the right side of the rotating rod (2). A first motor (4) is fixedly connected to the outside of the right side of the screening box (1), and the output end of the first motor (4) is fixedly connected to the right end of the rotating rod (2) at the rear. A crushing roller (5) is fixedly connected to the outer ring of the rotating rod (2). Cleaning components are passed through and provided on the front and rear sides of the screening box (1). Support columns (10) are fixedly connected to the four corners of the bottom of the screening box (1). A support plate (11) is fixedly connected between the left and right support columns (10). Two springs are fixedly connected to the top of the support plate (11). (12), a screening frame (13) is fixedly connected to the top of the spring (12), a chute (14) is provided on the adjacent side of the screening frame (13), an adjusting screen (15) is slidably connected in the chute (14), a support frame (25) is fixedly connected to the front and rear ends of the left side of the screening frame (13), a threaded rod (17) passes through and is threadedly connected to the support frame (25), an inward end of the threaded rod (17) is rotatably connected to the adjusting screen (15), a vibration motor (22) is fixedly connected to the lower front side of the screening frame (13), a feed port (24) is provided at the top of the screening box (1), and a discharge port (23) is provided at the bottom of the screening box (1).

2. The coal screening equipment for coal mining according to claim 1, characterized in that: The cleaning assembly comprises a storage box (6), wherein the two storage boxes (6) are fixedly connected to the outside of the screening box (1), two electric push rods (7) are fixedly connected inside the storage box (6), the output end of the electric push rod (7) is fixedly connected to a connecting plate (8), and the outside of the connecting plate (8) is fixedly connected to a cleaning brush (9).

3. The coal screening equipment for coal mining according to claim 1, characterized in that: A connecting frame (21) is fixedly connected to the bottom of the first motor (4), and the bottom of the connecting frame (21) is fixedly connected to the outside of the screening box (1).

4. The coal screening equipment for coal mining according to claim 1, characterized in that: The gear (3) is arranged outside the screening box (1), and the two gears (3) are meshed and connected.

5. The coal screening equipment for coal mining according to claim 1, characterized in that: A fixed screen (16) is provided on the top of the adjusting screen (15), and the fixed screen (16) is fixedly connected to the screening frame (13).

6. The coal screening equipment for coal mining according to claim 1, characterized in that: The threaded rod (17) is fixedly connected to an outward end thereof with a knob (18), and the knob (18) is arranged outside the support frame (25).

7. The coal screening equipment for coal mining according to claim 1, characterized in that: A collecting box (19) is provided below the regulating screen (15), and a collecting box (20) is provided on the right side of the collecting box (19).

8. The coal screening equipment for coal mining according to claim 2, characterized in that: The cleaning brush (9) is arranged in the storage box (6), and the cleaning brush (9) is arranged outside the crushing roller (5).

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