A coal mine scraper conveyor

Abstract

This utility model relates to the field of coal mine conveying, and more particularly to a coal mine scraper conveyor. This utility model provides a coal mine scraper conveyor that can simultaneously cool the chain and scraper during coal mine conveying, while also fine-tuning the chain tension, reducing wear and deformation, extending service life, preventing chain slippage or breakage, and improving operational safety. A coal mine scraper conveyor includes a chute and a placement plate, with the placement plate connected to the upper part of the chute. This utility model uses chain rotation to drive scraper rotation for coal conveying. Water enters the circulation pipe to simultaneously accelerate air circulation and cool the chain and scraper. Simultaneously, the movement of a slider drives the movement of a rear rotating shaft to fine-tune the chain tension. Therefore, it can simultaneously cool the chain and scraper during coal mine conveying, while also fine-tuning the chain tension, reducing wear and deformation, extending service life, preventing chain slippage or breakage, and improving operational safety.

Description

Technical Field

[0001] This utility model relates to the field of coal mine conveying, and in particular to a coal mine scraper conveyor. Background Technology

[0002] In coal mining operations, scraper conveyors are indispensable key transportation equipment, undertaking the important task of continuously and efficiently transporting coal from the working face to the designated location. Scraper conveyors are mainly composed of components such as chains, scrapers, and troughs. The chain, as the core transmission component, drives the scrapers to reciprocate within the trough, thereby realizing the transportation of coal.

[0003] A scraper conveyor for coal mines, disclosed in CN119460554A, includes a frame, a drive unit on one side of the frame, and a drive roller and a driven roller on the frame. The drive roller is located at the output end of the drive unit. This device uses a scraper mechanism to push coal blocks from one side with more coal blocks to the side with fewer coal blocks, ensuring that the conveyor chains on both sides of the connecting plate experience the same force and maintaining synchronization. However, this device lacks cooling and chain tension adjustment functions. During conveying, the chain and scraper continuously rub against the coal and the trough wall, generating a large amount of heat, causing a rapid temperature rise, accelerating component wear, shortening service life, and inducing thermal deformation, leading to changes in chain pitch and increasing the risk of chain detachment or breakage, thus affecting the normal operation and safety of the conveyor.

[0004] Therefore, it is necessary to design a coal mine scraper conveyor that can cool down the chain and scraper during the coal mine conveying process while fine-tuning the chain tension, reducing wear and deformation, extending service life, preventing chain slippage or breakage, and improving safety during use. Utility Model Content

[0005] To overcome the drawbacks of continuous friction between the chain and scraper and the coal and trough walls during conveying, which generates a large amount of heat, causing a sharp rise in temperature, accelerating component wear, shortening service life, and causing thermal deformation, leading to changes in chain pitch and increasing the risk of chain detachment or breakage, thus affecting the normal operation and safety of the conveyor, this utility model provides a coal mine scraper conveyor that can cool the chain and scraper during coal mine conveying while fine-tuning the chain tension, reducing wear and deformation, extending service life, preventing chain detachment or breakage, and improving operational safety.

[0006] The technical solution is as follows: A coal mine scraper conveyor includes a chute, a placement plate, a first motor, a rotating shaft, a chain, mounting slots, scrapers, sliders, an adjusting component, a cooling component, and a fixing component. The placement plate is connected to the upper part of the chute, and the first motor is connected to the right side of the front part of the chute. The first motor and the processor are electrically connected through a control module. The rotating shaft is rotatably connected to the front part of the chute, and sliders are slidably connected to the left and right sides of the rear part of the chute. The sliders are also rotatably connected to the rotating shaft. The rotating shaft at the front is connected to the output shaft of the first motor. The left and right sides of the rotating shaft are connected to the chain through sprockets. Multiple mounting slots are connected to the side of the chain that is close to each other. Scrapers are engaged between two mounting slots at the same lateral position. An adjusting component for adjusting the tension of the chain is provided at the right rear part of the chute. A cooling component for cooling the device is provided on the chute. Fixing components for fixing the scrapers are provided on the scrapers.

[0007] As a further preferred embodiment, the adjustment assembly includes a second motor and a first screw. The second motor is connected to the rear right side of the chute. The second motor and the processor are electrically connected through a control module. The first screw is connected to the output shaft of the second motor. The first screw is rotatably connected to the chute. The slider on the right side is connected to the first screw through a thread.

[0008] As a further preferred option, the cooling component includes an air inlet, an air outlet, and a circulation pipe. The air inlet is connected to the right side of the chute, the air outlet is connected to the left side of the chute, the circulation pipe is connected to the upper part of the chute, and the placement plate is located on the upper side of the circulation pipe.

[0009] As a further preferred option, dust filters are also included, with dust filters connected to both the air inlet and outlet.

[0010] As a further preferred embodiment, the fixing assembly includes a second screw, an extrusion block, a limiting frame, and a telescopic spring. The second screw is threadedly connected to the center of each scraper, and an extrusion block is rotatably connected to each second screw. Each extrusion block is slidably connected to an adjacent scraper. Each scraper is slidably connected to two limiting frames, which are engaged with adjacent mounting slots. Each limiting frame is connected to an adjacent scraper by two telescopic springs.

[0011] As a further preferred option, handles are provided on the opposite sides of the second screw.

[0012] The beneficial effects of this utility model are: 1. This utility model uses the rotation of the chain to drive the rotation of the scraper to transport coal in the mine. Water enters the circulation pipe to accelerate air circulation and cool the chain and scraper. At the same time, the movement of the slider drives the movement of the rear rotating shaft to fine-tune the chain tension. Thus, the chain tension can be finely adjusted while cooling the chain and scraper during coal transportation, reducing wear and deformation, extending service life, preventing the chain from falling off or breaking, and improving safety in use.

[0013] 2. This utility model moves by rotating the second screw, which drives the extrusion block to move and the extrusion limiting frame to engage with the mounting slot. Alternatively, by resetting the extrusion block, the limiting frame can be disengaged from the mounting slot, thereby allowing the scraper to be installed or disassembled and replaced. This enables the scraper to be installed and fixed for conveying coal in mines, facilitating quick loading, unloading and replacement of the scraper without replacing the entire equipment, thus reducing maintenance costs. Attached Figure Description

[0014] Figure 1 This is a three-dimensional structural diagram of the present invention.

[0015] Figure 2 This is a three-dimensional cross-sectional view of the components such as the chute and motor of this utility model.

[0016] Figure 3 This is a three-dimensional cross-sectional view of the screw and slider components of this utility model.

[0017] Figure 4 This is a three-dimensional cross-sectional view of the dustproof net and circulation pipe components of this utility model.

[0018] Figure 5 This is a three-dimensional cross-sectional view of the scraper and limiting frame components of this utility model.

[0019] The components in the attached diagram are labeled as follows: 1. Chute, 2. Placement plate, 3. First motor, 4. Shaft, 5. Chain, 6. Mounting slot, 7. Scraper, 8. Second motor, 9. First screw, 10. Slider, 11. Air inlet, 12. Dustproof net, 13. Air outlet, 14. Circulation pipe, 15. Second screw, 16. Extrusion block, 17. Limiting frame, 18. Telescopic spring. Detailed Implementation

[0020] The embodiments of this utility model will be described below with reference to the accompanying drawings.

[0021] A type of scraper conveyor for coal mines, such as Figures 1-5As shown, the device includes a chute 1, a placement plate 2, a first motor 3, a rotating shaft 4, a chain 5, mounting slots 6, scrapers 7, sliders 10, an adjustment assembly, a cooling assembly, and a fixing assembly. The placement plate 2 is connected to the upper part of the chute 1. The first motor 3 is connected to the front right side of the chute 1. The first motor 3 and the processor are electrically connected through a control module. The rotating shaft 4 is rotatably connected to the front of the chute 1. Sliders 10 are slidably connected to the left and right sides of the rear of the chute 1. The rotating shaft 4 is also rotatably connected between the sliders 10. The rotating shaft 4 at the front is connected to the output shaft of the first motor 3. The left and right sides of the rotating shaft 4 are connected to the chain 5 through sprockets. Multiple mounting slots 6 are connected to the side of the chain 5 that is close to each other. Scrapers 7 are engaged between two mounting slots 6 at the same horizontal position. An adjustment assembly for adjusting the tension of the chain 5 is provided at the right rear of the chute 1. A cooling assembly for cooling the device is provided on the chute 1. Fixing assemblies for fixing the scrapers 7 are provided on each scraper 7.

[0022] As shown in Figure 3, the adjustment assembly includes a second motor 8 and a first screw 9. The second motor 8 is connected to the rear right side of the chute 1. The second motor 8 and the processor are electrically connected through a control module. The first screw 9 is connected to the output shaft of the second motor 8. The first screw 9 is rotatably connected to the chute 1. The slider 10 on the right side is connected to the first screw 9 through a thread.

[0023] like Figure 1 , Figure 2 and Figure 4 As shown, the cooling component includes an air inlet 11, an air outlet 13, and a circulation pipe 14. The air inlet 11 is connected to the right side of the chute 1, and the air outlet 13 is connected to the left side of the chute 1. The circulation pipe 14 is connected to the upper part of the chute 1. The placement plate 2 is located on the upper side of the circulation pipe 14. It also includes a dustproof net 12. Both the air inlet 11 and the air outlet 13 are connected to the dustproof net 12 for dust prevention.

[0024] like Figure 5 As shown, the fixing assembly includes a second screw 15, a pressing block 16, a limiting frame 17, and a telescopic spring 18. The second screw 15 is threadedly connected to the middle of each scraper 7. Each of the two screws 15 has a handle on the side away from each other, which is convenient for hand gripping and rotating the second screw 15. The pressing block 16 is rotatably connected to each of the second screws 15. The pressing block 16 is slidably connected to the adjacent scraper 7. Two limiting frames 17 are slidably connected to each scraper 7. The limiting frames 17 are engaged with the adjacent mounting slots 6. Two telescopic springs 18 are connected between each limiting frame 17 and the adjacent scraper 7.

[0025] When coal needs to be transported, this device can be used. The chute 1 contacts the ground, and the scraper 7 is engaged with the mounting slot 6. The second screw 15 is then rotated via the handle, causing it to move under the action of the thread. This moves the extrusion block 16, pushing the limiting frame 17 to engage with the mounting slot 6 for fixation. The telescopic spring 18 is stretched, thus installing the scraper 7. Next, the coal is poured onto the placement plate 2, positioning it between the scrapers 7. The processor starts the first motor 3 via the control module, which drives the corresponding rotating shaft 4 to rotate. This causes the sprocket to rotate, which in turn drives the chain 5, thus rotating the scraper 7 to transport the coal. Simultaneously, the rotating shaft 4 and sprocket on the other side rotate. During transport, cold water is connected to the circulating pipe 14, allowing water to enter the circulating pipe. In step 14, air enters from the air inlet 11 and exits from the air outlet 13, accelerating air circulation. This allows the cool air in the circulation pipe 14 to diffuse and cool the chain 5, scraper 7, and placement plate 2. Dust is prevented by the dustproof net 12. Simultaneously, the second motor 8 is started, driving the first screw 9 to rotate. The screw thread causes the corresponding slider 10 to move, which in turn moves the rear rotating shaft 4, causing the slider 10 on the other side to move. This allows for fine-tuning of the tension of the chain 5. After fine-tuning, the second motor 8 is turned off. This allows for cooling of the chain 5 and scraper 7 during coal mine conveying while simultaneously fine-tuning the tension of the chain 5, reducing wear and deformation, extending service life, preventing the chain 5 from falling off or breaking, and improving safety. After conveying is completed, the first motor 3 is turned off.

[0026] When scraper 7 needs to be replaced, the second screw 15 is rotated in the reverse direction by the handle. Under the action of the thread, the second screw 15 moves, causing the extrusion block 16 to move and reset. The telescopic spring 18 rebounds, and the limiting frame 17 moves and resets, disengaging from the mounting slot 6. Then, scraper 7 is removed and replaced. Next, the new scraper 7 is engaged with the mounting slot 6. The second screw 15 is rotated again by the handle. Under the action of the thread, the second screw 15 moves, causing the extrusion block 16 to move and push the limiting frame 17 to move and engage with the mounting slot 6 for fixation. The telescopic spring 18 is stretched, thereby installing scraper 7. The device can then be used to transport coal in the mine. This allows for the installation and fixing of scraper 7 for coal transportation, facilitating quick loading, unloading, and replacement of scraper 7 without replacing the entire device, thus reducing maintenance costs.

[0027] Although this disclosure has been described with respect to only a limited number of embodiments, those skilled in the art who benefit from this disclosure will understand that various other embodiments can be devised without departing from the scope of this invention. Therefore, the scope of this invention should be limited only by the appended claims.

Claims

1. A coal mine scraper conveyor characterised by: The system includes a chute (1), a placement plate (2), a first motor (3), a rotating shaft (4), a chain (5), a mounting slot (6), a scraper (7), a slider (10), an adjustment assembly, a cooling assembly, and a fixing assembly. The placement plate (2) is connected to the upper part of the chute (1). The first motor (3) is connected to the front right side of the chute (1). The first motor (3) and the processor are electrically connected through a control module. The rotating shaft (4) is rotatably connected to the front of the chute (1). The sliders (10) are slidably connected to the left and right sides of the rear of the chute (1). The sliders (10) are also rotatably connected to each other. The shaft (4) at the front is connected to the output shaft of the first motor (3). The left and right sides of the shaft (4) are connected by a chain (5) through a sprocket. The sides of the chains (5) that are close to each other are connected to multiple mounting slots (6). Scrapers (7) are engaged between two mounting slots (6) at the same lateral position. The right rear of the chute (1) is provided with an adjustment component for adjusting the tension of the chain (5). The chute (1) is provided with a cooling component for cooling the device. The scrapers (7) are provided with fixing components for fixing the scrapers (7).

2. A coal mine scraper conveyor according to claim 1, characterised in that: The adjustment assembly includes a second motor (8) and a first screw (9). The second motor (8) is connected to the rear right side of the chute (1). The second motor (8) and the processor are electrically connected through a control module. The first screw (9) is connected to the output shaft of the second motor (8). The first screw (9) is rotatably connected to the chute (1). The slider (10) on the right side is connected to the first screw (9) through a thread.

3. A coal mine scraper conveyor according to claim 1, characterised in that: The cooling component includes an air inlet (11), an air outlet (13), and a circulation pipe (14). The air inlet (11) is connected to the right side of the chute (1), the air outlet (13) is connected to the left side of the chute (1), the circulation pipe (14) is connected to the upper part of the chute (1), and the placement plate (2) is located on the upper side of the circulation pipe (14).

4. A scraper conveyor for coal mines according to claim 3, characterized in that: It also includes a dustproof net (12), and the air inlet (11) and air outlet (13) are both connected to the dustproof net (12).

5. A scraper conveyor for coal mines according to claim 1, characterized in that: The fixing assembly includes a second screw (15), an extrusion block (16), a limiting frame (17), and a telescopic spring (18). The scraper (7) is connected to the second screw (15) by a thread in the middle. The second screw (15) is rotatably connected to the extrusion block (16). The extrusion block (16) is slidably connected to the adjacent scraper (7). The scraper (7) is slidably connected to two limiting frames (17). The limiting frames (17) are snapped into the adjacent mounting slot (6). The limiting frames (17) are connected to the adjacent scraper (7) by two telescopic springs (18).

6. A scraper conveyor for coal mines according to claim 5, characterized in that: The second screw (15) has a handle on each side that is far apart from each other.

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