Coal stone crushing device for coal mining in coal mine

Abstract

The coal stone smashing device comprises an outer shell and fixing legs fixedly installed at the four corners of the lower end of the outer shell, when a coal mine is smashed, a first smashing assembly and a second smashing assembly are started, coal mine raw stone is poured into the outer shell through a feeding port, and the coal mine raw stone is smashed through the first smashing assembly and the second smashing assembly. A first motor starts an output end to drive a first rotating rod to rotate, the first rotating rod drives a transmission belt to operate, first crushing rods on the two first rotating rods rotate together when the two first rotating rods rotate, and at the moment, coal mine raw stones on the upper portion downwards fall into the position between the two first crushing rods; according to the coal and stone crushing device for coal mining in the coal mine, the two first crushing rods are matched to complete primary crushing of raw stones of the coal mine, the coal mine subjected to primary crushing continues to fall onto the second crushing assembly, and the second crushing assembly performs secondary crushing on the coal mine, and the coal and stone crushing device for coal mining in the coal mine can perform secondary crushing again after primary crushing of the raw stones of the coal mine, so that the crushing efficiency is improved. The coal mine raw stone crushing effect is good, and the working efficiency is high.

Description

Technical Field

[0001] The utility model relates to the technical field of coal mine production, in particular to a coal stone crushing device for coal mining. Background Art

[0002] Coal is a solid combustible mineral that was gradually formed by ancient plants buried underground and undergoing complex biochemical and physical and chemical changes. It was once known as the "food of industry". Although the value of coal is no longer as great as before with the advancement of science and technology and the development of the times, coal resources are still one of the indispensable sources of energy for human production and life at this stage and for a long time in the future. The supply of coal is related to the stability of the development of my country's industry and even the entire society. According to different coal application fields, the mined coal blocks need to be crushed and screened.

[0003] Most of the existing coal stone crushing devices directly pour the raw coal into the crushing device for direct crushing. One-time crushing may result in a large number of uncrushed large coal particles after crushing. Secondary crushing is required to make the coal particles reach the required particle size, which is relatively cumbersome to operate.

[0004] Therefore, we propose a coal stone crushing device for coal mining in order to solve the above-mentioned problems. Utility Model Content

[0005] The utility model provides a coal stone crushing device for coal mining, which solves the problem that most of the existing coal stone crushing devices mentioned in the above background technology directly pour the coal raw stones into the crushing device for direct crushing, and one-time crushing may result in a large number of uncrushed large coal particles after crushing, and secondary crushing is required to make the coal particles reach the required particle size, and the operation is relatively cumbersome.

[0006] The utility model provides the following technical solution: a coal stone crushing device for coal mining in coal mines, comprising an external shell and fixed legs fixedly installed at the four corners of the lower end of the external shell, a feed port fixedly installed at the upper end of the external shell, a discharge port fixedly installed at the lower end of the external shell, a first crushing assembly installed on the external shell, a mounting block 1 fixedly installed on the side wall of the external shell, the first crushing assembly comprising a motor 1 fixedly installed on the mounting block 1, a rotating rod 1 fixedly connected to the output end of the motor 1, the rotating rod 1 rotatably connected to both sides of the inner part of the external shell, a first crushing rod fixedly installed on the rotating rod 1, a transmission belt is sleeved between the two rotating rods 1, and a second crushing assembly is installed on the external shell.

[0007] As an optional solution described in the present invention, wherein: a second mounting block is fixedly mounted on the side wall of the external shell, and the second crushing assembly includes a second motor fixedly mounted on the second mounting block.

[0008] As an optional solution described in the utility model, wherein: both sides of the inner wall of the external shell are rotatably connected with a second rotating rod, the second rotating rod is fixedly installed with a second crushing rod, the second rotating rod is fixedly installed with a gear, and the two gears are meshed.

[0009] As an optional solution described in the utility model, wherein: the output end of the second motor is fixedly connected to one of the second rotating rods, and a support rod is fixedly installed on the two second rotating rods, and the longer ends of the two support rods face oppositely.

[0010] As an optional solution described in the utility model, movable components are installed on both sides of the inner wall of the external shell, and the movable components include fixed blocks fixedly installed on both sides of the inner wall of the external shell, a fixed plate is fixedly installed on one side of the fixed block, a slider is slidably connected to the fixed plate, and a V-shaped plate is fixedly installed on the upper end of the slider.

[0011] As an optional solution described in the utility model, wherein: a cavity is opened in the fixed plate, a spring is fixedly installed between the lower wall of the cavity and the upper end of the inner wall of the slider, sliding grooves are opened on both side walls of the fixed block, connecting blocks are fixedly installed on both sides of the slider, and the connecting blocks are slidably connected in the sliding grooves.

[0012] As an optional solution described in the utility model, the push rod can contact the V-shaped plate when rotating, and a plurality of openings are equidistantly formed in the upper half of the V-shaped plate.

[0013] The utility model has the following beneficial effects:

[0014] 1. When the coal is crushed, the first crushing component and the second crushing component are started, and the raw coal is poured into the outer shell through the feed port. When the motor is started, the output end drives the rotating rod to rotate, and the rotating rod drives the transmission belt to operate. When the two rotating rods rotate, the first crushing rods on the two rotating rods rotate together. At this time, the raw coal on the top falls down between the two first crushing rods. With the cooperation of the two first crushing rods, the first crushing of the raw coal is completed. After the first crushing, the coal continues to fall down to the second crushing component, and is crushed for the second time by the second crushing component. The coal stone crushing device for coal mining can crush the raw coal for the second time after the raw coal is crushed once, and the crushing effect of the raw coal is better and the working efficiency is higher.

[0015] 2. With the cooperation between the second motor, the second rotating rod, the gear, the second crushing rod, the push rod, the fixed block, the fixed plate, the slider, the V-shaped plate, the opening, the cavity, the spring, the slide groove and the connecting block, the device can perform a second crushing on the coal ore raw stone after the first crushing, and the crushing effect is better. The V-shaped plate can prevent the larger coal ore particles from being blocked between the two V-shaped plates. The smaller particles after the first crushing fall directly from the fixed block on the side, which can reduce the contact between the fine coal ore particles and the second crushing rod and reduce the dust generated during crushing. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the overall structure of the utility model.

[0017] Figure 2 It is a schematic diagram of the overall internal structure of the utility model.

[0018] Figure 3 It is a schematic diagram of the overall internal cross-sectional structure of the utility model.

[0019] Figure 4 It is a schematic diagram of the structure of the active components of the utility model.

[0020] In the figure: 1. external shell; 11. fixed leg; 12. feed port; 13. discharge port; 14. mounting block 1; 15. mounting block 2; 2. first crushing assembly; 21. motor 1; 22. rotating rod 1; 23. first crushing rod; 24. transmission belt; 3. second crushing assembly; 31. motor 2; 32. rotating rod 2; 33. gear; 34. second crushing rod; 35. push rod; 4. movable assembly; 41. fixed block; 42. fixed plate; 43. slider; 44. V-shaped plate; 45. opening; 46. cavity; 47. spring; 48. slide groove; 49. connecting block. DETAILED DESCRIPTION

[0021] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0022] Example 1

[0023] See also Figure 1 - Figure 3A coal stone crushing device for coal mining in coal mines comprises an external shell 1 and fixed legs 11 fixedly installed at the four corners of the lower end of the external shell 1, a feed port 12 is fixedly installed at the upper end of the external shell 1, a discharge port 13 is fixedly installed at the lower end of the external shell 1, a first crushing assembly 2 is installed on the external shell 1, a mounting block 14 is fixedly installed on the side wall of the external shell 1, the first crushing assembly 2 comprises a motor 21 fixedly installed on the mounting block 14, a rotating rod 22 is fixedly connected to the output end of the motor 21, the rotating rod 22 is rotatably connected to both sides of the inner part of the external shell 1, a first crushing rod 23 is fixedly installed on the rotating rod 22, a transmission belt 24 is sleeved between the two rotating rods 22, and a second crushing assembly 3 is installed on the external shell 1.

[0024] When the coal is crushed, the first crushing component 2 and the second crushing component 3 are started, and the raw coal is poured into the outer shell 1 through the feed port 12. The raw coal enters the outer shell 1. When the first crushing component 2 is started, the motor 21 starts to run, and the output end of the motor 21 starts to drive the rotating rod 22 to rotate. The rotation of the rotating rod 22 drives the transmission belt 24 to run, and the transmission belt 24 drives another rotating rod 22 to rotate on the inner wall of the outer shell 1. When the two rotating rods 22 rotate, the first crushing rods 23 on the two rotating rods 22 rotate together. At this time, the raw coal above falls downward between the two first crushing rods 23. With the cooperation of the two first crushing rods 23, the first crushing of the raw coal is completed. After the first crushing, the coal continues to fall downward onto the second crushing component 3, and is crushed for the second time by the second crushing component 3. The device can perform secondary crushing again after the raw coal is crushed once, and the crushing effect of the raw coal is good and the working efficiency is high.

[0025] Example 2

[0026] See also Figure 2 - Figure 4 A mounting block 15 is fixedly mounted on the side wall of the outer shell 1. The second crushing assembly 3 includes a motor 31 fixedly mounted on the mounting block 15. With the cooperation between the mounting block 15 and the motor 31, the motor 31 can be mounted on the outside of the outer shell 1.

[0027] Both sides of the inner wall of the outer shell 1 are rotatably connected with a second rotating rod 32, and a second crushing rod 34 is fixedly installed on the second rotating rod 32. A gear 33 is fixedly installed on the second rotating rod 32. The two gears 33 are meshed with each other. Under the cooperation between the second rotating rod 32, the second crushing rod 34 and the gear 33, one of the second rotating rods 32 can drive the other second rotating rod 32 to rotate together.

[0028] The output end of the second motor 31 is fixedly connected to one of the second rotating rods 32, and a support rod 35 is fixedly installed on the two second rotating rods 32. The longer ends of the two support rods 35 face oppositely. With the cooperation between the second motor 31, the second rotating rod 32 and the support rod 35, the second motor 31 can drive the second rotating rod 32 to rotate when it is started.

[0029] Movable components 4 are installed on both sides of the inner wall of the external shell 1, and the movable components 4 include fixed blocks 41 fixedly installed on both sides of the inner wall of the external shell 1, and a fixed plate 42 is fixedly installed on one side of the fixed block 41, and a slider 43 is slidably connected to the fixed plate 42, and a V-shaped plate 44 is fixedly installed on the upper end of the slider 43. With the cooperation between the external shell 1, the fixed block 41, the fixed plate 42, the slider 43 and the V-shaped plate 44, the V-shaped plate 44 can slide on the side wall of the fixed block 41.

[0030] A cavity 46 is provided in the fixed plate 42, and a spring 47 is fixedly installed between the lower wall of the cavity 46 and the upper end of the inner wall of the slider 43. Slide grooves 48 are provided on both side walls of the fixed block 41, and connecting blocks 49 are fixedly installed on both sides of the slider 43. The connecting blocks 49 are slidably connected in the slide grooves 48. With the cooperation between the fixed plate 42, the cavity 46, the slider 43, the spring 47, the slide groove 48 and the connecting blocks 49, the V-shaped plate 44 can be brought back to its original position by the spring 47 after it moves.

[0031] When the push rod 35 rotates, it can contact the V-shaped plate 44. The upper half of the V-shaped plate 44 is provided with a plurality of openings 45 at equal intervals. When the rotating rod 32 rotates, the V-shaped plate 44 can be driven to move.

[0032] After the raw coal is crushed by the first crushing assembly 2, the coal falls downward onto the V-shaped plate 44. Because the V-shaped plate 44 has a movable inclination, the smaller coal particles that do not need secondary crushing enter the V-shaped plate 44 from the openings on the V-shaped plate 44, move downward along the inner wall of the V-shaped plate 44, flow into the fixed block 41 from the inside of the V-shaped plate 44, and then enter the upper end of the discharge port 13 downward. The larger coal particles that need secondary crushing fall downward from the gap between the two V-shaped plates 44 to between the two second crushing rods 34. At this time, the motor 2 31 starts to drive one of the rotating rods 2 32 to rotate, and the rotation of the rotating rod 2 32 drives the gear 33 fixed on its side to run together. At this time, the gear 33 drives another gear 33 to rotate together, and the rotation of the other gear 33 drives the other rotating rod 2 32 to rotate on the inner wall of the outer shell 1. At this time, the two second crushing rods 34 run together to crush the coal particles that need secondary crushing. The V-shaped plate 44 can prevent larger coal particles from being blocked between the two V-shaped plates 44, and the smaller particles after the first crushing fall directly from the fixed block 41 on the side, which can reduce the contact between the fine coal particles and the second crushing rod 34 and reduce the dust generated during crushing.

[0033] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0034] The above is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the technical principle of the present invention. These improvements and modifications should also be regarded as the protection scope of the present invention.

Claims

1. A coal crushing device for coal mining, comprising an outer shell (1) and fixed legs (11) fixedly mounted at the four corners of the lower end of the outer shell (1), a feed port (12) fixedly mounted at the upper end of the outer shell (1), and a discharge port (13) fixedly mounted at the lower end of the outer shell (1), characterized in that: A first crushing assembly (2) is mounted on the outer shell (1); a mounting block (14) is fixedly mounted on the side wall of the outer shell (1); the first crushing assembly (2) comprises a motor (21) fixedly mounted on the mounting block (14); an output end of the motor (21) is fixedly connected to a rotating rod (22); the rotating rod (22) is rotatably connected to both sides of the inner part of the outer shell (1); a first crushing rod (23) is fixedly mounted on each of the rotating rods (22); a transmission belt (24) is sleeved between the two rotating rods (22); and a second crushing assembly (3) is mounted on the outer shell (1).

2. A coal stone crushing device for coal mining according to claim 1, characterized in that: A second mounting block (15) is fixedly mounted on the side wall of the outer shell (1), and the second crushing assembly (3) comprises a second motor (31) fixedly mounted on the second mounting block (15).

3. A coal stone crushing device for coal mining according to claim 2, characterized in that: The inner wall of the outer shell (1) is rotatably connected to a second rotating rod (32), the second rotating rod (32) is fixedly mounted with a second crushing rod (34), the second rotating rod (32) is fixedly mounted with a gear (33), and the two gears (33) are meshed with each other.

4. A coal stone crushing device for coal mining according to claim 3, characterized in that: The output end of the second motor (31) is fixedly connected to one of the second rotating rods (32), and a support rod (35) is fixedly mounted on both of the second rotating rods (32), and the longer ends of the two support rods (35) face oppositely.

5. A coal stone crushing device for coal mining according to claim 4, characterized in that: A movable component (4) is installed on both sides of the inner wall of the external shell (1), and the movable component (4) includes a fixed block (41) fixedly installed on both sides of the inner wall of the external shell (1), a fixed plate (42) is fixedly installed on one side of the fixed block (41), a slider (43) is slidably connected to the fixed plate (42), and a V-shaped plate (44) is fixedly installed on the upper end of the slider (43).

6. A coal stone crushing device for coal mining according to claim 5, characterized in that: A cavity (46) is provided in the fixed plate (42), a spring (47) is fixedly installed between the lower wall of the cavity (46) and the upper end of the inner wall of the sliding block (43), sliding grooves (48) are provided on both side walls of the fixed block (41), connecting blocks (49) are fixedly installed on both sides of the sliding block (43), and the connecting blocks (49) are slidably connected in the sliding grooves (48).

7. A coal stone crushing device for coal mining according to claim 6, characterized in that: The stopper rod (35) can contact the V-shaped plate (44) when rotating, and a plurality of openings (45) are equidistantly provided on the upper half of the V-shaped plate (44).

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