Crushing device of coal mining machine for coal mining

Abstract

The utility model relates to the technical field of coal mining machines, in particular to a crushing device of a coal mining machine for coal mining, which comprises a fixing frame, a crushing device and a crushing device, the coal mining device comprises a fixed frame, a moving structure is installed on the fixed frame, the moving structure comprises a coal mining rotating disc, the coal mining rotating disc is movably installed at the top end of the fixed frame, reciprocating screw rods are welded to the two side walls of the coal mining rotating disc, rectangular grooves are formed in the surfaces of the reciprocating screw rods, and a reciprocating screw sleeve and a motor are fixedly installed in the top end of the fixed frame. A rectangular shaft is movably installed in the top end of the fixing frame through a bearing, and a shell is fixedly installed on the outer wall of the top end of the fixing frame. According to the utility model, the coal mining turntable capable of moving along the axial direction is arranged, so that when hard coal stone is encountered, the structure of the coal stone can be loosened by adjusting the contact position with the coal stone, further the coal stone can be comprehensively crushed, and the crushing efficiency can be improved.

Description

Technical Field

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

[0002] When mining coal, a coal mining machine is a machine used in coal mining. When encountering larger or harder coal stones, the coal stones need to be crushed.

[0003] In this regard, China applied for patent number: CN202121938309.7, which discloses a coal mining machine with a crushing function, including a mechanical arm bottom plate and a driving mechanism. A pair of side plates are provided on both sides of the top surface of the mechanical arm bottom plate, and a fixed cylinder is provided in the middle of the inner side of each side plate. A bearing ring is provided in the inner port of each fixed cylinder, and a rotating shaft is provided in each bearing ring. A coal mining turntable is provided at the outer end of each rotating shaft, and a driving mechanism is installed in the middle of the top surface of the mechanical arm bottom plate. This utility model solves the problem of poor crushing effect of the coal mining machine through the coordinated use of various mechanisms, and the overall structural design is compact. Through the staggered rotation of a pair of coal mining turntables, the stability of the coal mining turntable during the coal mining operation is increased, and the crushing effect of the coal stone is further improved.

[0004] The coal mining machine crushes larger or harder coal stones by setting up two sets of coal mining turntables rotating in opposite directions. However, during use, the contact positions between the two sets of coal mining turntables and the coal stones are fixed. When crushing harder coal stones, they can only be crushed little by little, resulting in low efficiency and poor use effect.

[0005] Therefore, in order to solve the above problems, a coal mining machine crushing device is proposed. Utility Model Content

[0006] The purpose of the utility model is to provide a coal mining machine crushing device for coal mining, so as to solve the problem that the coal mining machine in the prior art mentioned in the above background technology crushes larger or harder coal stones by setting two sets of coal mining turntables rotating in opposite directions, but during use, the contact positions of the two sets of coal mining turntables and the coal stones are fixed, and when crushing harder coal stones, they can only be crushed little by little, resulting in low efficiency and poor use effect.

[0007] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: A coal mining machine crushing device for coal mining, comprising: a fixed frame, the bottom surface of which is welded with a U-shaped hinge seat;

[0008] A movable structure is installed on the fixed frame, and the movable structure includes a coal mining turntable, which is movably installed on the top of the fixed frame. Reciprocating screw rods are welded on the two side walls of the coal mining turntable, and a rectangular groove is opened on the surface of the reciprocating screw rod. A reciprocating screw sleeve and a motor are fixedly installed inside the top of the fixed frame, a rectangular shaft is movably installed inside the top of the fixed frame through a bearing, and a shell is fixedly installed on the outer wall of the top of the fixed frame.

[0009] Preferably, a cooling structure is installed inside the fixing frame, and the cooling structure includes a water pipe, and the water pipe is passed through the fixing frame, and a nozzle is fixedly installed inside the top end of the fixing frame.

[0010] Preferably, the reciprocating screw rod is inserted into the inner side of the reciprocating wire sleeve, and the reciprocating screw rod and the reciprocating wire sleeve cooperate with each other.

[0011] Preferably, the output end of the motor is fixedly connected to a rectangular shaft, and the rectangular shaft is inserted into the inner side of the rectangular groove.

[0012] Preferably, the motor is fixedly mounted on the inner wall of the housing.

[0013] Preferably, the water outlet end of the nozzle is exposed from the top surface of the fixing frame, and the nozzle is located at the lower side of the coal mining turntable.

[0014] Compared with the prior art, the utility model has the following beneficial effects: by providing a coal mining turntable that can move axially, the utility model can loosen the structure of the coal stone by adjusting the contact position with the coal stone when encountering harder coal stone, thereby completely crushing the coal stone and improving the crushing efficiency.

[0015] 1. The utility model is provided with a moving structure, and the motor is started, and the motor drives the rectangular shaft to rotate. The end of the rectangular shaft is inserted into the inside of the rectangular groove. The rotation of the rectangular shaft drives the reciprocating screw to rotate through the rectangular groove, and the coal mining turntable rotates with the reciprocating screw. The reciprocating screw and the reciprocating screw sleeve cooperate with each other. When the reciprocating screw rotates, it moves left and right inside the reciprocating screw sleeve. When the reciprocating screw moves, it drives the coal mining turntable to move left and right. When encountering harder coal stone, the contact position with the coal stone can be adjusted to loosen the structure of the coal stone, and then the coal stone is fully crushed, which can improve the crushing efficiency;

[0016] 2. The utility model is provided with a cooling structure, and the water pipe is connected to the water source. The water source enters the nozzle through the water pipe and is sprayed out through the nozzle. The coal mining turntable can be cooled and dust can be reduced, thereby ensuring the smooth operation of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the structure of the utility model;

[0018] Figure 2 It is a schematic diagram of the explosion of the structure of the utility model;

[0019] Figure 3 It is a schematic diagram of a front cross-section of the structure of the utility model;

[0020] Figure 4 It is a schematic diagram of the separation structure of the rectangular groove and the rectangular shaft of the utility model.

[0021] In the figure: 1. fixed frame; 11. U-shaped hinge seat; 2. moving structure; 21. coal mining turntable; 22. reciprocating screw rod; 23. rectangular groove; 24. reciprocating screw sleeve; 25. rectangular shaft; 26. motor; 27. housing; 3. cooling structure; 31. water guide pipe; 32. nozzle. DETAILED DESCRIPTION

[0022] 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.

[0023] See also Figure 1-4 , an embodiment provided by the utility model:

[0024] The fixing frame 1, U-shaped hinge seat 11 and motor 26 used in the present application are products that can be directly purchased on the market. Their principles and connection methods are existing technologies well known to those skilled in the art, so they will not be described here in detail.

[0025] A coal mining machine crushing device for coal mining, comprising: a fixed frame 1, a bottom surface of which is welded a U-shaped hinge seat 11;

[0026] A mobile structure 2 is installed on the fixed frame 1, and the mobile structure 2 includes a coal mining turntable 21, which is movably installed on the top of the fixed frame 1. Reciprocating screws 22 are welded on the two side walls of the coal mining turntable 21, and a rectangular groove 23 is opened on the surface of the reciprocating screw 22. A reciprocating screw sleeve 24 and a motor 26 are fixedly installed inside the top of the fixed frame 1. A rectangular shaft 25 is movably installed inside the top of the fixed frame 1 through a bearing, and a shell 27 is fixedly installed on the outer wall of the top of the fixed frame 1. The coal mining turntable 21 can move in the axial direction. When encountering harder coal stone, it can loosen the structure of the coal stone by adjusting the contact position with the coal stone, thereby comprehensively crushing the coal stone, which can improve the crushing efficiency.

[0027] Furthermore, a cooling structure 3 is installed inside the fixed frame 1, and the cooling structure 3 includes a water pipe 31. The water pipe 31 is passed through the fixed frame 1, and a nozzle 32 is fixedly installed inside the top of the fixed frame 1. The water pipe 31 is connected to a water source, and the water source enters the nozzle 32 through the water pipe 31 and is sprayed out through the nozzle 32. The coal mining turntable 21 can be cooled and dust can be reduced, thereby ensuring the smooth operation of the device.

[0028] Furthermore, the reciprocating screw 22 is inserted into the inner side of the reciprocating screw sleeve 24, and the reciprocating screw 22 cooperates with the reciprocating screw sleeve 24. When the reciprocating screw 22 rotates in the reciprocating screw sleeve 24, it can move left and right relative to the reciprocating screw sleeve 24, so as to adjust the contact position between the coal mining turntable 21 and the coal stone, loosen the structure of the coal stone, and then crush the coal stone comprehensively, which can improve the crushing efficiency.

[0029] Furthermore, the output end of the motor 26 is fixedly connected to the rectangular shaft 25, and the rectangular shaft 25 is inserted into the inner side of the rectangular groove 23. The motor 26 provides power for the rotation of the rectangular shaft 25. The rotation of the rectangular shaft 25 can drive the reciprocating screw rod 22 and the coal mining turntable 21 to rotate through the rectangular groove 23, and the reciprocating screw rod 22 can move outside the rectangular shaft 25.

[0030] Furthermore, the motor 26 is fixedly mounted on the inner wall of the housing 27 , and the housing 27 provides protection for the installation of the motor 26 .

[0031] Furthermore, the water outlet end of the nozzle 32 is exposed from the top surface of the fixed frame 1, and the nozzle 32 is located at the lower side of the coal mining turntable 21. The water source can be sprayed onto the surface of the coal mining turntable 21 through the nozzle 32, which can cool the coal mining turntable 21 and have the effect of dust reduction, thereby ensuring the smooth operation of the device.

[0032] Working principle: When in use, the motor 26 is started, and the motor 26 drives the rectangular shaft 25 to rotate. The end of the rectangular shaft 25 is inserted into the inside of the rectangular groove 23. The rotation of the rectangular shaft 25 drives the reciprocating screw 22 to rotate through the rectangular groove 23, and the coal mining turntable 21 rotates along with the reciprocating screw 22. The reciprocating screw 22 cooperates with the reciprocating wire sleeve 24. When the reciprocating screw 22 rotates, it moves left and right inside the reciprocating wire sleeve 24. When the reciprocating screw 22 moves, it drives the coal mining turntable 21 to move left and right. When encountering harder coal stone, the structure of the coal stone can be loosened by adjusting the contact position with the coal stone, and then the coal stone is fully crushed, which can improve the crushing efficiency;

[0033] The water source is connected to the water pipe 31 , and the water source enters the nozzle 32 through the water pipe 31 and is sprayed out through the nozzle 32 , which can cool the coal mining turntable 21 and have the effect of reducing dust, thereby ensuring the smooth operation of the device.

[0034] The above description is only a preferred embodiment of the utility model and does not limit the utility model in any form. Any ordinary technician in the industry can smoothly implement the utility model as shown in the drawings of the specification and described above. However, any equivalent changes, modifications and evolutions made by technicians familiar with the profession without departing from the scope of the technical solution of the utility model using the technical content disclosed above are all equivalent embodiments of the utility model. At the same time, any equivalent changes, modifications and evolutions made to the above embodiments based on the essential technology of the utility model are still within the protection scope of the technical solution of the utility model.

Claims

1. A coal mining machine crushing device for coal mining, comprising: A fixing frame (1), wherein a U-shaped hinge seat (11) is welded to the bottom surface of the fixing frame (1); Features: A movable structure (2) is mounted on the fixed frame (1), the movable structure (2) comprising a coal mining turntable (21), the coal mining turntable (21) being movably mounted on the top of the fixed frame (1), a reciprocating screw rod (22) being welded to the two side walls of the coal mining turntable (21), a rectangular groove (23) being provided on the surface of the reciprocating screw rod (22), a reciprocating screw sleeve (24) and a motor (26) being fixedly mounted inside the top of the fixed frame (1), a rectangular shaft (25) being movably mounted inside the top of the fixed frame (1) via a bearing, and a housing (27) being fixedly mounted on the outer wall of the top of the fixed frame (1).

2. A coal mining machine crushing device according to claim 1, characterized in that: A cooling structure (3) is installed inside the fixing frame (1), and the cooling structure (3) comprises a water pipe (31). The water pipe (31) is passed through the fixing frame (1), and a nozzle (32) is fixedly installed inside the top end of the fixing frame (1).

3. A coal mining machine crushing device according to claim 1, characterized in that: The reciprocating screw rod (22) is inserted into the inner side of the reciprocating screw sleeve (24), and the reciprocating screw rod (22) and the reciprocating screw sleeve (24) cooperate with each other.

4. A coal mining machine crushing device according to claim 1, characterized in that: The output end of the motor (26) is fixedly connected to the rectangular shaft (25), and the rectangular shaft (25) is inserted into the inner side of the rectangular groove (23).

5. A coal mining machine crushing device according to claim 1, characterized in that: The motor (26) is fixedly mounted on the inner wall of the housing (27).

6. A coal mining machine crushing device according to claim 2, characterized in that: The water outlet end of the nozzle (32) is exposed from the top surface of the fixing frame (1), and the nozzle (32) is located at the lower side of the coal mining rotary disc (21).

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