Coal mine transportation device for coal mine excavation

Abstract

The utility model discloses a coal mine transportation device for coal mine excavation, which belongs to the technical field of coal mine transportation and comprises a conveying belt, one side of the conveying belt is connected with a bottom plate, the output end of the conveying belt is connected with a screening device for screening materials, and the screening device is externally connected with a driving device for applying driving force. According to the screening device, materials are placed on the conveying belt, then the materials passing through the conveying belt fall into the screening barrel through the receiving plate, the driving motor is started at the moment, the driving motor drives one rolling wheel to rotate, and then the rolling wheel drives the anti-skid track to rotate when rotating in the anti-skid track; at the moment, the anti-skid track drives the screening barrel to rotate synchronously, and then the coal blocks pass through the inclined screening barrel and fall into the corresponding material receiving boxes through the through holes in the screening barrel, so that classified screening of the coal blocks is achieved, and the coal blocks of different sizes fall into the different material receiving boxes.

Description

Technical Field

[0001] The utility model belongs to the technical field of coal mine transportation, in particular to a coal mine transportation device used for coal mine excavation. Background Art

[0002] A coal mine is an area where humans mine coal resources in coal-rich mining areas. It usually includes tunnels, shafts, mining faces, etc. It is generally divided into underground coal mines and open-pit coal mines. The vast majority of coal mines in my country are underground coal mines. Because underground coal mines are located underground, the excavation of underground coal mines particularly requires coal mine transportation equipment.

[0003] The prior art discloses utility model patents in the field of coal mine transportation technology. Among them, the utility model patent with application number CN219708070U discloses a coal mine transportation device for coal mine excavation. Its basic description is as follows: This utility model discloses a coal mine transportation device for coal mine excavation, which relates to the field of coal mine transportation technology, including a box body, a first conveyor belt, and a second conveyor belt. The first conveyor belt is located above the second conveyor belt. A guide plate is provided between the first and second conveyor belts. An eccentric wheel is fixedly provided at the front end of the output shaft of the first conveyor belt. The front end of the eccentric wheel is rotatably connected to a connecting rod. A crushing mechanism is rotatably provided inside the box body via a pin. The connecting rod is rotatably connected to the side of the crushing mechanism and is located between the eccentric wheel and the crushing mechanism. A material leakage hole is provided in the first conveyor belt. This utility model can effectively separate large and small coal lumps during transportation, avoiding congestion of small coal lumps when crushing large coal lumps. The presence of the eccentric wheel makes it easier to crush large coal lumps.

[0004] In the actual implementation process, the above document screens small pieces of coal through the leakage holes in the conveyor belt. However, during the screening process, slightly larger coal pieces are easily stuck in the leakage holes, affecting the operation of the conveyor belt, and it is inconvenient to screen coal pieces of different sizes, affecting the subsequent processing time.

[0005] Based on this, the utility model designs a coal mine transportation device for coal mine excavation to solve the above problems. Utility Model Content

[0006] The purpose of the utility model is to solve the problem that small pieces of coal are screened through the leakage holes in the conveyor belt, but slightly larger coal pieces are easily stuck in the leakage holes during the screening process, affecting the operation of the conveyor belt, and it is inconvenient to screen coal pieces of different sizes, affecting the subsequent processing time. A coal transportation device for coal mine excavation is proposed.

[0007] In order to achieve the above purpose, the present invention adopts the following technical solutions:

[0008] A coal transport device for coal mine excavation includes a conveyor belt, one side of the conveyor belt is connected to a bottom plate, the output end of the conveyor belt is connected to a screening device for screening materials, the screening device is externally connected to a driving device for applying a driving force, one side of the screening device is provided with a discharging device for buffering large pieces of material, and the bottom plate is connected to a plurality of material receiving boxes.

[0009] As a further description of the above technical solution:

[0010] The screening device includes a receiving plate and several support rods. The receiving plate is connected to one side of the conveyor belt, the support rods are connected to the bottom plate, rollers are rotatably connected to the support rods, and a screening drum is overlapped on one side of the receiving plate.

[0011] As a further description of the above technical solution:

[0012] The screening drum is configured as three drums for screening materials of different sizes.

[0013] As a further description of the above technical solution:

[0014] The screening drum is arranged in an inclined shape to facilitate the movement of materials.

[0015] As a further description of the above technical solution:

[0016] The driving device includes a connecting plate, which is connected to one side of a support rod. A driving motor is installed on the connecting plate. The output end of the driving motor passes through the connecting plate. The output end of the driving motor is connected to a roller. A circular ring is overlapped on the outside of the roller, and an anti-slip track is opened inside the circular ring.

[0017] As a further description of the above technical solution:

[0018] The ring is arranged at the connection of a plurality of rollers.

[0019] As a further description of the above technical solution:

[0020] The discharging device includes a discharging hopper and a movable plate. A rotating shaft is rotatably connected inside the discharging hopper. Two fixed blocks are provided on the outer sleeve of the rotating shaft. The fixed blocks are connected to one side of a support rod. Two buffer springs are connected under the movable plate. The buffer springs are connected in the bottom plate. The discharging hopper is overlapped on the movable plate.

[0021] As a further description of the above technical solution:

[0022] The discharge hopper is configured to be in a semi-arc shape for shielding the material.

[0023] In summary, due to the adoption of the above technical solution, the beneficial effects of the present invention are:

[0024] 1. In the utility model, the material is placed on a conveyor belt, and then the material passing through the conveyor belt falls into a screening drum through a receiving plate. At this time, the drive motor is started, and the drive motor drives a roller to rotate. Then, when the roller rotates in the anti-skid track, it drives the anti-skid track to rotate. At this time, the anti-skid track drives the screening drum to rotate synchronously. Then, when passing through the inclined screening drum, the material passes through the through hole in the screening drum and falls into the corresponding receiving box, thereby realizing graded screening of the coal blocks, so that coal blocks of different sizes fall into different receiving boxes.

[0025] 2. In the present invention, when larger pieces of coal move to the discharge port of the screening drum, they fall into the discharge hopper, which drives the discharge hopper to rotate freely in the fixed block through the rotating shaft. Then the discharge hopper applies pressure to the movable plate, and the pressure drives the movable plate to move. Then the movable plate compresses the buffer spring, and then the buffer spring applies elastic force to the movable plate, so that the movable plate is quickly reset, thereby achieving buffering of the heavier coal pieces when they fall, and avoiding the generation of dust by large impact force. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 This is a three-dimensional structural diagram of a coal mine transportation device for coal mine excavation proposed by the utility model;

[0027] Figure 2 This is a three-dimensional structural diagram of a coal mine transport device screening device for coal mine excavation proposed by the utility model;

[0028] Figure 3 This is a three-dimensional structural diagram of a driving device for a coal mine transport device for coal mine excavation proposed by the utility model;

[0029] Figure 4 This is a three-dimensional structural diagram of a coal mine transport device and a discharging device for coal mine excavation proposed by the utility model;

[0030] Figure 5 A coal mine transportation device for coal mine excavation proposed by the utility model Figure 4 A schematic diagram of the structure of the enlarged part A;

[0031] Legend:

[0032] 1. Conveyor belt; 2. Bottom plate; 3. Screening device; 31. Receiving plate; 32. Screening drum; 33. Support rod; 34. Roller; 4. Driving device; 41. Connecting plate; 42. Driving motor; 43. Ring; 44. Anti-slip track; 5. Discharging device; 51. Discharging hopper; 52. Rotating shaft; 53. Fixed block; 54. Moving plate; 55. Buffer spring; 6. Receiving box. DETAILED DESCRIPTION

[0033] The following will be combined with the accompanying drawings in 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.

[0034] See also Figure 1-Figure 5 ,

[0035] First embodiment:

[0036] The utility model provides a technical solution: a coal transportation device for coal mine excavation, comprising a conveyor belt 1, one side of the conveyor belt 1 is connected to a bottom plate 2, the output end of the conveyor belt 1 is connected to a screening device 3 for screening materials, the screening device 3 is externally connected to a driving device 4 for applying a driving force, one side of the screening device 3 is provided with a discharging device 5 for buffering large pieces of material, and the bottom plate 2 is connected to a plurality of material receiving boxes 6.

[0037] Specifically, such as Figure 2-4 As shown, the screening device 3 includes a receiving plate 31 and several support rods 33. The receiving plate 31 is connected to one side of the conveyor belt 1, and the support rod 33 is connected to the bottom plate 2. A roller 34 is rotatably connected to the support rod 33. A screening drum 32 is overlapped on one side of the receiving plate 31. The screening drum 32 is provided with three rollers for screening materials of different sizes. By providing three different rollers, coal blocks of different sizes can be graded and screened. The screening drum 32 is provided in an inclined shape to facilitate the movement of materials. The driving device 4 includes a connecting plate 41, which is connected to the bottom plate 2. A connecting plate 41 is connected to one side of a support rod 33, and a driving motor 42 is installed on the connecting plate 41. The output end of the driving motor 42 runs through the connecting plate 41, and the output end of the driving motor 42 is connected to a roller 34. A circular ring 43 is overlapped on the outside of the roller 34, and an anti-slip track 44 is opened in the circular ring 43. By setting the roller 34 and the anti-slip track 44, the roller 34 can drive the anti-slip track 44 to rotate, and the anti-slip track 44 will not slip with the roller 34; the circular ring 43 is set at the connection of multiple rollers.

[0038] During operation, the material is placed on the conveyor belt 1, and then the material passing through the conveyor belt 1 falls into the screening drum 32 through the receiving plate 31. At this time, the drive motor 42 is started, and the drive motor 42 drives a roller 34 to rotate. Then, the roller 34 drives the anti-skid track 44 to rotate while rotating in the anti-skid track 44. At this time, the anti-skid track 44 drives the screening drum 32 to rotate synchronously. Then, when passing through the inclined screening drum 32, the material passes through the through hole in the screening drum 32 and falls into the corresponding material receiving box 6, thereby realizing the graded screening of the coal blocks, so that coal blocks of different sizes fall into different material receiving boxes 6.

[0039] Second embodiment:

[0040] Specifically, such as Figure 4-5 As shown, the discharging device 5 includes a discharging hopper 51 and a movable plate 54. A rotating shaft 52 is rotatably connected inside the discharging hopper 51. Two fixed blocks 53 are provided on the outer sleeve of the rotating shaft 52. The fixed block 53 is connected to one side of a support rod 33. Two buffer springs 55 are connected under the movable plate 54. By setting the buffer springs 55, the buffer springs 55 apply elastic force to the movable plate 54, so that the movable plate 54 is quickly reset, thereby achieving the effect of buffering the objects above; the buffer springs 55 are connected in the bottom plate 2, and the discharging hopper 51 is overlapped on the movable plate 54. The discharging hopper 51 is set to a semi-arc shape to block the material. By setting the discharging hopper 51, the arc design of the discharging hopper 51 can prevent the material from sliding out easily when it falls inside.

[0041] When larger pieces of coal move to the discharge port of the screening drum 32, they fall into the discharge hopper 51, which drives the discharge hopper 51 to rotate freely in the fixed block 53 through the rotating shaft 52. Then the discharge hopper 51 applies pressure to the movable plate 54, and the pressure drives the movable plate 54 to move. Then the movable plate 54 compresses the buffer spring 55, and then the buffer spring 55 applies elastic force to the movable plate 54, so that the movable plate 54 is quickly reset, thereby achieving buffering of the heavier coal pieces when they fall, and avoiding the generation of dust by large impact force.

[0042] The above is only a preferred specific implementation method of the present invention, but the protection scope of the present invention is not limited to this. Any technician familiar with the technical field within the technical scope disclosed by the present invention can make equivalent replacements or changes based on the technical solution and utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A coal transport device for coal mining, comprising a conveyor belt (1), characterized in that: One side of the conveyor belt (1) is connected to a bottom plate (2), the output end of the conveyor belt (1) is connected to a screening device (3) for screening materials, the screening device (3) is externally connected to a driving device (4) for applying a driving force, one side of the screening device (3) is provided with a discharging device (5) for buffering large pieces of material, and a plurality of receiving boxes (6) are connected to the bottom plate (2).

2. A coal mine transportation device for coal mine excavation according to claim 1, characterized in that: The screening device (3) comprises a receiving plate (31) and a plurality of support rods (33). The receiving plate (31) is connected to one side of the conveyor belt (1). The support rods (33) are connected to the bottom plate (2). Rollers (34) are rotatably connected to the support rods (33). A screening drum (32) is overlapped on one side of the receiving plate (31).

3. A coal mine transportation device for coal mine excavation according to claim 2, characterized in that: The screening drum (32) is configured as three drums for screening materials of different sizes.

4. A coal mine transportation device for coal mine excavation according to claim 2, characterized in that: The screening drum (32) is arranged in an inclined shape to facilitate the movement of materials.

5. A coal mine transportation device for coal mine excavation according to claim 2, characterized in that: The driving device (4) includes a connecting plate (41), the connecting plate (41) is connected to one side of a support rod (33), a driving motor (42) is installed on the connecting plate (41), the output end of the driving motor (42) passes through the connecting plate (41), the output end of the driving motor (42) is connected to a roller (34), a circular ring (43) is overlapped on the outside of the roller (34), and an anti-slip track (44) is opened in the circular ring (43).

6. A coal mine transportation device for coal mine excavation according to claim 5, characterized in that: The ring (43) is arranged at the connection of the plurality of rollers.

7. A coal transportation device for coal mining according to claim 5, characterized in that: The discharging device (5) comprises a discharging hopper (51) and a movable plate (54). A rotating shaft (52) is rotatably connected inside the discharging hopper (51). Two fixed blocks (53) are provided on the outer sleeve of the rotating shaft (52). The fixed blocks (53) are connected to one side of a support rod (33). Two buffer springs (55) are connected under the movable plate (54). The buffer springs (55) are connected inside the bottom plate (2). The discharging hopper (51) is overlapped on the movable plate (54).

8. A coal transportation device for coal mining according to claim 7, characterized in that: The discharge hopper (51) is configured in a semi-arc shape to shield the material.

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