Coal mine crushing device for coal mining

Abstract

The coal mine crushing device comprises a support, a crushing box fixedly installed on the support and a feeding port formed in one end of the crushing box, a discharging mechanism is arranged at the end, away from the feeding port, of the crushing box, a rotating shaft is rotationally installed in the crushing box, and a discharging mechanism is arranged at the end, away from the feeding port, of the crushing box. A plurality of crushing rods distributed in a linear array are fixedly mounted on the rotating shaft, and spring rods are symmetrically arranged on the rotating shaft; by arranging the crushing plate and the spraying head, through knocking of the crushing rod and extrusion crushing of the crushing plate and the spring rod, the crushing efficiency of coal briquettes is effectively improved, the coal briquettes are easier to decompose and treat, the production efficiency is improved, the spraying head is used for spraying dust in the crushing box, and the crushing efficiency is improved. According to the coal briquette crushing device, dust generated in the coal briquette crushing process can be effectively reduced, the sanitary condition of the working environment is improved, the health of workers is protected, and pollution of the dust to equipment and the surrounding environment can be prevented.

Description

Technical Field

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

[0002] Coal crushing is an important link in the coal production process. Its main purpose is to convert the original coal from larger lumps or blocks into smaller particles to meet the subsequent coal selection, coal washing, combustion and other process requirements.

[0003] Upon investigation, it was found that the Chinese utility model patent with publication number CN219580694U discloses a coal mine crushing device used in coal mine exploitation. The coal mine crushing device is used in conjunction with a connecting plate, a two-way electric telescopic column, a moving block, a connecting rod, a connecting column, a connecting block, a baffle and a limit column, thereby achieving the advantage of being convenient for the internal inspection and maintenance of the coal mine crushing device used in coal mine exploitation; however, the coal blocks may generate a large amount of dust during the crushing process. If dust reduction is not carried out in time, the surrounding air may be seriously polluted and may cause certain harm to the staff.

[0004] Therefore, it is necessary to design a coal mine crushing device for coal mining to solve the above problems. Utility Model Content

[0005] The utility model aims to solve the shortcomings in the prior art and proposes a coal mine crushing device for coal mining.

[0006] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0007] A coal mine crushing device used in coal mine mining comprises a bracket, a crushing box fixedly mounted on the bracket and a feeding port opened at one end of the crushing box, a feeding mechanism is arranged at the end of the crushing box away from the feeding port, a rotating shaft is rotatably mounted in the crushing box, a plurality of crushing rods distributed in a linear array are fixedly mounted on the rotating shaft, spring rods are symmetrically arranged on the rotating shaft, a crushing plate is fixedly mounted on the telescopic end of the spring rod, a driving motor for driving the rotating shaft is fixedly mounted at one end of the crushing box, a support rod is rotatably mounted in the crushing box at a position directly above the rotating shaft, and a plurality of spray heads distributed in a linear array are fixedly mounted on the support rod.

[0008] Preferably, a transmission mechanism for driving the support rod is provided at one end of the crushing box.

[0009] Preferably, the transmission mechanism includes a gear rotatably mounted on one end of the crushing box and fixedly connected to one end of the support rod, a half gear rotatably mounted on one end of the crushing box and meshing with the gear, and a torsion spring sleeved on the support rod, the two ends of the torsion spring are respectively fixedly connected to the support rod and the crushing box, a driven wheel is fixedly mounted on the end of the half gear away from the crushing box, and the driven wheel is connected to the output end of the drive motor through a synchronous belt transmission.

[0010] Preferably, the crushing plate is arc-shaped, and a surface of the crushing plate away from the spring rod is provided with a plurality of evenly distributed convex hulls.

[0011] Preferably, the crushing rod and the crushing plate are both made of high-strength metal material.

[0012] Preferably, the feeding mechanism comprises a feeding pipe penetrating through an end of the crushing box away from the feeding port and a filter screen arranged in the feeding pipe.

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

[0014] By setting up the crushing plate and the spray head, the crushing efficiency of the coal blocks is effectively improved through the knocking of the crushing rod and the extrusion and crushing of the crushing plate and the spring rod, making the coal blocks easier to decompose and handle, which helps to improve production efficiency. The spraying of the spray head in the crushing box to reduce dust can effectively reduce the dust generated during the coal block crushing process, improve the sanitary conditions of the working environment, protect the health of the staff, and help prevent dust from polluting the equipment and the surrounding environment. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is a schematic diagram of the overall structure of a coal mine crushing device used in coal mining proposed by the utility model;

[0016] Figure 2 for Figure 1 A schematic diagram of the structure at A;

[0017] Figure 3 This is a schematic diagram of the internal structure of a crushing box of a coal mine crushing device used in coal mining proposed by the utility model;

[0018] Figure 4 for Figure 3 Schematic diagram of the structure at B;

[0019] In the figure: 1. bracket; 2. crushing box; 21. feeding port; 22. unloading mechanism; 221. filter screen; 222. unloading pipe; 3. rotating shaft; 31. crushing rod; 32. spring rod; 33. crushing plate; 4. support rod; 41. sprinkler head; 42. transmission mechanism; 421. gear; 422. half gear; 423. torsion spring; 424. driven wheel; 425. synchronous belt; 5. driving motor. DETAILED DESCRIPTION

[0020] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments.

[0021] Reference Figure 1-4 A coal crushing device for coal mining includes a support 1, a crushing box 2 fixedly mounted on the support 1, and a feeding port 21 opened at one end of the crushing box 2. A feeding mechanism 22 is provided at one end of the crushing box 2 away from the feeding port 21. A rotating shaft 3 is rotatably mounted in the crushing box 2. A plurality of crushing rods 31 distributed in a linear array are fixedly mounted on the rotating shaft 3. A spring rod 32 is symmetrically arranged on the rotating shaft 3. A crushing plate 33 is fixedly mounted on the telescopic end of the spring rod 32. A driving motor 5 for driving the rotating shaft 3 is fixedly mounted at one end of the crushing box 2. A support rod 4 is rotatably mounted in the crushing box 2 at a position just above the rotating shaft 3. A plurality of spray heads 41 distributed in a linear array are fixedly mounted on the support rod 4. The spray head 41 on the support rod 4 can spray water mist to reduce dust during the process of crushing coal blocks in the crushing box 2, reduce dust from floating into the air, and achieve an effective dust reduction effect.

[0022] Reference Figure 1 One end of the crushing box 2 is provided with a transmission mechanism 42 for driving the support rod 4. The transmission mechanism 42 can drive the support rod 4 and the spray head 41 to reciprocate within a certain range to achieve better spraying and dust reduction.

[0023] Reference Figure 2 The transmission mechanism 42 includes a gear 421 rotatably mounted on one end of the crushing box 2 and fixedly connected to one end of the support rod 4, a half gear 422 rotatably mounted on one end of the crushing box 2 and meshing with the gear 421, and a torsion spring 423 sleeved on the support rod 4. The two ends of the torsion spring 423 are respectively fixedly connected to the support rod 4 and the crushing box 2. A driven wheel 424 is fixedly mounted on the end of the half gear 422 away from the crushing box 2. The driven wheel 424 is connected to the output end of the driving motor 5 through a synchronous belt 425. The half gear 422 can be rotated by the driving motor 5, and the matching gear 421 and the torsion spring 423 can drive the support rod 4 to reciprocate within a certain range.

[0024] Reference Figure 3The crushing plate 33 is arc-shaped, and a plurality of evenly distributed convex hulls are arranged on a side of the crushing plate 33 away from the spring rod 32. When the crushing plate 33 rotates with the rotating shaft 3, the coal block can be crushed by squeezing it.

[0025] Reference Figure 3 The crushing rod 31 and the crushing plate 33 are both made of high-strength metal materials, which ensures that the crushing rod 31 and the crushing plate 33 are used more stably.

[0026] Reference Figure 3 The feeding mechanism 22 includes a feeding pipe 222 which is arranged at one end of the crushing box 2 away from the feeding port 21 and a filter 221 which is arranged in the feeding pipe 222. The crushed coal blocks can be filtered and fed through the filter 221 so that the discharged coal blocks are small blocks that meet the requirements.

[0027] The specific working principle of the utility model is as follows:

[0028] First, the coal blocks can be added into the crushing box 2 through the feeding port 21, and then the driving motor 5 is turned on to drive the rotating shaft 3 to rotate. During the rotation of the rotating shaft 3, the coal blocks can be knocked by the crushing rod 31, and the combination of the crushing plate 33 and the spring rod 32 can squeeze and crush the coal blocks located between the crushing plate 33 and the crushing box 2, thereby improving the crushing efficiency of the coal blocks. While the driving motor 5 rotates, the half gear 422 can be driven to rotate by the synchronous belt 425 and the driven wheel 424, the gear 421 is meshed with the half gear 422, and the gear 421 is used in conjunction with the torsion spring 423, so that when the half gear 422 is meshed with the gear 421, the gear 421 and the strut 4 can be driven to rotate, and when the half gear 422 is separated from the gear 421, the strut 4 and the gear 421 can be reset under the action of the torsion spring 423, so that the spray head 41 can reciprocate within a certain range to achieve spraying and dust reduction in the crushing box 2. The working principle and connection method of the spray head 41 are both existing mature technologies and will not be described in detail here.

[0029] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes within the technical scope disclosed by the present invention according to the technical scheme and the utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A coal mining crushing device for use in coal mining, comprising a support (1), a crushing box (2) fixedly mounted on the support (1), and a feeding port (21) provided at one end of the crushing box (2), wherein a feeding mechanism (22) is provided at one end of the crushing box (2) away from the feeding port (21), characterized in that: A rotating shaft (3) is rotatably mounted in the crushing box (2), a plurality of crushing rods (31) distributed in a linear array are fixedly mounted on the rotating shaft (3), spring rods (32) are symmetrically arranged on the rotating shaft (3), a crushing plate (33) is fixedly mounted on the telescopic end of the spring rod (32), a driving motor (5) for driving the rotating shaft (3) is fixedly mounted at one end of the crushing box (2), a support rod (4) is rotatably mounted in the crushing box (2) at a position directly above the rotating shaft (3), and a plurality of spray heads (41) distributed in a linear array are fixedly mounted on the support rod (4).

2. A coal mine crushing device for coal mining according to claim 1, characterized in that: One end of the crushing box (2) is provided with a transmission mechanism (42) for driving the support rod (4).

3. A coal mine crushing device for coal mining according to claim 2, characterized in that: The transmission mechanism (42) comprises a gear (421) rotatably mounted on one end of the crushing box (2) and fixedly connected to one end of the support rod (4), a half gear (422) rotatably mounted on one end of the crushing box (2) and meshing with the gear (421), and a torsion spring (423) sleeved on the support rod (4), the two ends of the torsion spring (423) being respectively fixedly connected to the support rod (4) and the crushing box (2), a driven wheel (424) being fixedly mounted on one end of the half gear (422) away from the crushing box (2), and the driven wheel (424) is connected to the output end of the drive motor (5) by a synchronous belt (425).

4. A coal crushing device for coal mining according to claim 1, characterized in that: The crushing plate (33) is arc-shaped, and a surface of the crushing plate (33) away from the spring rod (32) is provided with a plurality of evenly distributed convex hulls.

5. The coal crushing device for coal mining according to claim 1, characterized in that: The crushing rod (31) and the crushing plate (33) are both made of high-strength metal material.

6. A coal crushing device for coal mining according to claim 1, characterized in that: The material discharge mechanism (22) comprises a material discharge pipe (222) which is arranged through the end of the crushing box (2) away from the material feeding port (21) and a filter screen (221) which is arranged in the material discharge pipe (222).

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