A coal mine crushing device for coal mining

Abstract

This utility model discloses a coal crushing device for coal mining, including a coal crushing box. A mounting frame is fixedly connected to the lower surface of the crushing box, and a vertical angle steel frame is fixedly connected to the side surface of the mounting frame. A screening frame is fixedly connected to the side surface of the vertical angle steel frame, and a connecting shaft is rotatably connected to the side surface of the screening frame. This utility model utilizes the cooperation of a connecting shaft, a connecting plate, a guide cone, a rotating plate, a slot, and a moving plate. When the connecting shaft rotates, the guide cone moves within the slot of the rotating plate, causing the rotating plate to move left and right in a reciprocating motion. This reciprocating motion of the moving plate displaces accumulated material, improving the material screening effect, helping large particles slide off and small particles fall through, effectively preventing the filter screen from deforming and breaking due to the weight of accumulated material, and increasing the service life of the filter screen.

Description

Technical Field

[0001] This utility model belongs to the field of coal mining technology, specifically relating to a coal crushing device for coal mining. Background Technology

[0002] A coal mine is an area in which humans extract coal resources in a coal-rich mining area. It is a reasonable space excavated by humans when excavating coal-rich geological strata, and usually includes roadways, shafts, and mining faces. Coal is the most important solid fuel and is a type of combustible organic rock.

[0003] After coal mining, coal crushing equipment is needed to break large pieces of coal into smaller particles or powder to meet the needs of subsequent processing, transportation, or use.

[0004] Existing coal mine crushing equipment crushes the coal and then screens the discharged coal. When the crushed coal falls onto the screen from the discharge port, it tends to accumulate. A large amount of coal accumulating on the screen is not conducive to screening and can easily cause blockages, affecting work efficiency. The large weight of a large amount of coal accumulation may also cause the screen to deform and break. Utility Model Content

[0005] The technical problem to be solved by this utility model is that when existing crushing devices crush and discharge coal, a large amount of coal tends to accumulate on the screen below the discharge port. When a large amount of coal accumulates, it can easily cause blockage or deformation and damage to the screen due to gravity.

[0006] To solve the above-mentioned technical problems, the present invention provides a coal mine crushing device for coal mining, including a coal mine crushing box, wherein a mounting frame is fixedly connected to the lower surface of the coal mine crushing box, and a vertical angle steel frame is fixedly connected to the side surface of the mounting frame. A screening frame is fixedly connected to the side surface of the vertical angle steel frame. A connecting shaft is rotatably connected to the side surface of the screening frame. A connecting plate is fixedly connected to one end of the connecting shaft. A second bevel gear is fixedly connected to the end of the connecting shaft away from the connecting plate. A guide cone is fixedly connected to the side surface of the connecting plate. A rotating plate is rotatably connected to the upper surface of the screening frame. A slot is provided on the side surface of the rotating plate. A fixing plate is fixedly connected to the side surface of the rotating plate. A toggle plate is fixedly connected to the lower surface of the fixing plate. A filter screen is provided on the inner side wall of the screening frame.

[0007] Through the above technical solution, the rotating connecting shaft drives the connecting plate to rotate, which in turn causes the guide cone to rotate. When the guide cone is displaced in the slot of the rotating plate, the rotating plate moves left and right, which in turn causes the fixed plate and the actuating plate installed on the rotating plate to move. When the actuating plate moves, it agitates the coal and mineral materials falling on the filter screen, preventing a large amount of material from accumulating on the filter screen below the feed inlet. It also helps to screen the material, allowing small particles to fall into the collection box, while large particles slide off the filter screen, making the screening effect of the device better. Furthermore, it can prevent blockage and screen deformation and damage caused by a large accumulation of material.

[0008] The present invention is further configured such that a motor is fixedly connected to the upper surface of the mounting bracket, a first pulley is fixedly connected to the output end of the motor, a first rotating shaft is rotatably connected to the side surface of the mounting bracket, a second pulley is fixedly connected to the side surface of the first rotating shaft, and a first belt is rotatably connected to the side surface of the first pulley.

[0009] Through the above technical solution, the motor can drive the first pulley to rotate, and when the first pulley rotates, the second pulley can be rotated through the first belt.

[0010] The present invention is further configured such that the side surface of the second pulley is rotatably connected to the first belt, and a first bevel gear is fixedly connected to the end of the first shaft away from the second pulley, and the side surface of the first bevel gear meshes with the second bevel gear.

[0011] Through the above technical solution, the second pulley drives the first shaft and the first bevel gear to rotate, thereby causing the second bevel gear, which meshes with the first bevel gear, to rotate.

[0012] The present invention is further configured such that a collection box is movably connected to the side surface of the vertical angle steel frame, and a caster wheel is provided on the lower surface of the collection box.

[0013] The above technical solution allows the collection box to collect falling small particles, and the collection box can be pushed out from under the device by the action of the casters.

[0014] The present invention is further configured such that a second rotating shaft is rotatably connected through the side surface of the coal mine crushing box, and a crushing roller is rotatably connected to the side surface of the second rotating shaft.

[0015] Through the above technical solution, the crushing roller crushes the coal and mineral materials while rotating.

[0016] The present invention is further configured such that a third pulley is fixedly connected to the side surface of the second rotating shaft, and a second belt is rotatably connected to the side surface of the third pulley.

[0017] The present invention is further configured such that the upper surface of the coal mine crushing box is provided with a feed inlet, and the lower surface of the coal mine crushing box is provided with a discharge outlet.

[0018] The beneficial effects of this utility model are as follows: (1) By connecting the shaft, connecting plate, guide cone, rotating plate, slot and actuating plate, the guide cone can be moved in the slot of the rotating plate when the shaft rotates, thereby driving the rotating plate to move back and forth, and causing the actuating plate to move back and forth. During the displacement, the accumulated material can be actuated, thereby improving the material screening effect, helping large particles to slide down and small particles to fall down, effectively avoiding the situation where the filter screen is deformed and damaged due to the large weight of the accumulated material, and increasing the service life of the filter screen. (2) The motor drives the crushing roller to rotate and crush the coal and mineral materials. At the same time, the first belt, the first rotating shaft, the first bevel gear and the second bevel gear can drive the connecting shaft to rotate. The rotation of the connecting shaft causes the actuating plate to move back and forth to move the material. This allows the device to crush the coal and mineral materials while moving the crushed material, thus reducing the number of steps for workers and reducing the labor intensity of the operators. Attached Figure Description

[0019] Figure 1 This is a first-view structural diagram of a coal mine crushing device for coal mining according to this utility model; Figure 2 This is a partial structural schematic diagram of a coal mine crushing device for coal mining according to this utility model; Figure 3 This is another structural schematic diagram of a coal mine crushing device for coal mining according to this utility model; Figure 4 This is a schematic diagram of a crushing roller in a coal mine crushing device according to the present invention; Figure 5 yes Figure 2 Enlarged view of point A in the middle.

[0020] Reference numerals: 1. Coal mine crushing box; 2. Mounting frame; 3. Motor; 4. First pulley; 5. First shaft; 6. Second pulley; 7. First belt; 8. First bevel gear; 9. Second bevel gear; 10. Connecting shaft; 11. Vertical angle steel frame; 12. Screening frame; 13. Connecting plate; 14. Guide cone; 15. Rotating plate; 16. Slot; 17. Fixing plate; 18. Actuating plate; 19. Filter screen; 20. Collection box; 21. Second shaft; 22. Crushing roller; 23. Third pulley; 24. Fourth pulley. Detailed Implementation

[0021] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present utility model and are not intended to limit the present utility model.

[0022] like Figures 1-5 As shown, this embodiment of a coal mine crushing device includes a coal crushing box 1, a mounting frame 2 fixedly connected to the lower surface of the coal crushing box 1, a motor 3 fixedly connected to the upper surface of the mounting frame 2, the motor 3 being electrically connected to an external power source, and a first pulley 4 connected to it rotating when powered on. The output end of the motor 3 is fixedly connected to the first pulley 4. A first rotating shaft 5 is rotatably connected to the side surface of the mounting frame 2, a second pulley 6 is fixedly connected to the side surface of the first rotating shaft 5, and a first belt 7 is rotatably connected to the side surface of the first pulley 4. The first pulley 4 rotates under the action of the motor 3, thereby causing the first rotating shaft 5 to rotate through the first belt 7, driving the first bevel gear 8 and the second bevel gear 9 to rotate, thus completing the power transmission. The side surface of the second pulley 6 is rotatably connected to the first belt 7. The end of the first rotating shaft 5 away from the second pulley 6 is fixedly connected to the first bevel gear 8, and the side surface of the first bevel gear 8 meshes with the second bevel gear 9. A vertical angle steel frame 11 is fixedly connected to the side surface of the mounting frame 2.

[0023] A screening frame 12 is fixedly connected to the side surface of the vertical angle steel frame 11. The screening frame 12 is used to screen the crushed material according to the particle size. A connecting shaft 10 is rotatably connected to the side surface of the screening frame 12. A connecting plate 13 is fixedly connected to one end of the connecting shaft 10. A second bevel gear 9 is fixedly connected to the end of the connecting shaft 10 away from the connecting plate 13. A guide cone 14 is fixedly connected to the side surface of the connecting plate 13. When the connecting shaft 10 rotates, it drives the connecting plate 13 and the guide cone 14 to rotate. One end of the guide cone 14 contacts the slot 16. When rotating, it pushes the slot 16 to form a displacement, thereby causing the rotating plate 15 to reciprocate left and right. The upper surface of the screening frame 12 is rotatably connected to a rotating plate 15. The side surface of the rotating plate 15 is provided with a slot 16. A fixing plate 17 is fixedly connected to the side surface of the rotating plate 15. A toggle plate 18 is fixedly connected to the lower surface of the fixing plate 17. As the rotating plate 15 moves left and right, the toggle plate 18 moves back and forth accordingly. During the displacement, the material accumulated on the surface of the filter screen 19 is pushed to help screen the material, so that large particles slide down and small particles fall through the filter screen 19. This can effectively avoid the accumulation of material leading to blockage or the increased weight of the accumulated material causing the filter screen 19 to deform or break. The inner side wall of the screening frame 12 is provided with a filter screen 19.

[0024] A collection box 20 is movably connected to the side surface of the vertical angle steel frame 11. The collection box 20 is used to collect small particles that fall through. A caster wheel is provided on the lower surface of the collection box 20. A second rotating shaft 21 is rotatably connected through the side surface of the coal mine crushing box 1. A crushing roller 22 is rotatably connected to the side surface of the second rotating shaft 21. The crushing roller 22 crushes the coal mine material fed into the device when it rotates. A third pulley 23 is fixedly connected to the side surface of the second rotating shaft 21. A second belt 24 is rotatably connected to the side surface of the third pulley 23. The side surface of the second belt 24 is rotatably connected to the first pulley 4. A feed inlet is provided on the upper surface of the coal mine crushing box 1, and a discharge outlet is provided on the lower surface of the coal mine crushing box 1.

[0025] The working principle of this utility model is as follows: When crushing coal, the power is first turned on to start the motor 3, which makes the first pulley 4 rotate, and then the first belt 7 and the second belt 24 rotate. The second belt 24 drives the third pulley 23 to rotate, which makes the crushing roller 22 rotate. The rotation of the first belt 7 makes the first rotating shaft 5 rotate, which in turn makes the first bevel gear 8 installed above rotate. The second bevel gear 9, which meshes with the first bevel gear 8, drives the connecting shaft 10 to rotate, which makes the connecting plate 13 rotate and drive the guide round cone 14 to move in the slot 16, which in turn makes the rotating plate 15 move back and forth, and the actuating plate 18 moves back and forth above the filter screen 19. At this time, the coal to be crushed is put into the coal crushing box 1. The crushed coal falls onto the surface of the filter screen 19. Under the actuating back and forth movement of the actuating plate 18, large particles slide down and small particles fall into the collection box 20.

[0026] The above description is merely an embodiment of this utility model and does not limit the patent scope of this utility model. Any equivalent structural or procedural transformations made based on the description and drawings of this utility model, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of this utility model.

Claims

1. A coal mine crushing device for coal mining, comprising a coal mine crushing box (1), characterized in that: The lower surface of the coal mine crushing box (1) is fixedly connected to a mounting frame (2), and the side surface of the mounting frame (2) is fixedly connected to a vertical angle steel frame (11). A screening frame (12) is fixedly connected to the side surface of the vertical angle steel frame (11). A connecting shaft (10) is rotatably connected to the side surface of the screening frame (12). A connecting plate (13) is fixedly connected to one end of the connecting shaft (10). A second bevel gear (9) is fixedly connected to the end of the connecting shaft (10) away from the connecting plate (13). A guide cone (14) is fixedly connected to the side surface of the connecting plate (13). A rotating plate (15) is rotatably connected to the upper surface of the screening frame (12). A slot (16) is provided on the side surface of the rotating plate (15). A fixing plate (17) is fixedly connected to the side surface of the rotating plate (15). A toggle plate (18) is fixedly connected to the lower surface of the fixing plate (17). A filter screen (19) is provided on the inner side wall of the screening frame (12).

2. A coal mine crushing device for coal mining according to claim 1, characterized in that, A motor (3) is fixedly connected to the upper surface of the mounting bracket (2), and a first pulley (4) is fixedly connected to the output end of the motor (3). A first rotating shaft (5) is rotatably connected to the side surface of the mounting bracket (2), a second pulley (6) is fixedly connected to the side surface of the first rotating shaft (5), and a first belt (7) is rotatably connected to the side surface of the first pulley (4).

3. A coal mine crushing device for coal mining according to claim 2, characterized in that, The side surface of the second pulley (6) is rotatably connected to the first belt (7), and the first shaft (5) is fixedly connected to the end away from the second pulley (6) with a first bevel gear (8), and the side surface of the first bevel gear (8) meshes with the second bevel gear (9).

4. A coal mine crushing device for coal mining according to claim 1, characterized in that, The side surface of the vertical angle steel frame (11) is movably connected to a collection box (20), and the lower surface of the collection box (20) is provided with casters.

5. A coal mine crushing device for coal mining according to claim 1, characterized in that, The side surface of the coal mine crushing box (1) is rotatably connected to a second rotating shaft (21), and the side surface of the second rotating shaft (21) is rotatably connected to a crushing roller (22).

6. A coal mine crushing device for coal mining according to claim 5, characterized in that, A third pulley (23) is fixedly connected to the side surface of the second shaft (21), and a second belt (24) is rotatably connected to the side surface of the third pulley (23).

7. A coal mine crushing device for coal mining according to claim 1, characterized in that, The upper surface of the coal mine crushing box (1) is provided with a feed inlet, and the lower surface of the coal mine crushing box (1) is provided with a discharge outlet.

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