Coal unloading adjusting device for machine head of scraper reversed loader

Abstract

The invention relates to the technical field of coal mine underground fully mechanized coal mining face crossheading scraper reversed loader, in particular to a coal unloading adjusting device of a scraper reversed loader head. Due to the fact that the coal unloading height and angle of the reversed loader affect the service life of a belt and the safety of underground workers, hidden dangers of coal scattering, large dust and belt deviation exist. According to the coal unloading adjusting device for the machine head of the scraper reversed loader, the coal unloading height of the machine head of the scraper reversed loader can be adjusted, the coal unloading angle of the machine head of the scraper reversed loader can also be adjusted, and particularly when the coal unloading height angle is affected by the uneven road surface of a coal mine underground roadway, so that a belt is damaged, and the amount of coal dust is large, the coal unloading height of the machine head of the scraper reversed loader can be adjusted. Therefore, the service life of the belt can be prolonged to the maximum extent, the maintenance cost is reduced, safety and reliability in the coal unloading process of the reversed loader are guaranteed, and operation is convenient.

Description

Technical Field

[0001] This invention relates to the technical field of scraper conveyors in the roadway of fully mechanized coal mining faces, specifically a coal unloading adjustment device for the head of a scraper conveyor. Background Technology

[0002] In fully mechanized coal mining faces, scraper conveyors are one of the main pieces of equipment. The unloading height of the conveyor has a significant impact on the belt conveyor system. When the unloading height is too high, the coal flow not only impacts the belt, leading to accelerated wear on the belt surface, especially the rubber layer and skeleton materials, but also causes coal splashing, increasing the risk of spillage and requiring frequent cleaning. Furthermore, it can cause localized deformation at the impact points, potentially leading to longitudinal tearing of the belt in the long term, posing a significant safety hazard. When the unloading angle is too large, the coal's free-fall velocity increases, and impacting the belt can easily cause material rebound and splashing, increasing spillage and dust. When the unloading angle is too small, the coal's flowability is poor, causing coal to accumulate at the conveyor outlet, resulting in uneven belt load and the potential for belt misalignment due to localized coal accumulation. Therefore, researching a scraper conveyor head unloading adjustment device to solve this problem is urgently needed. Summary of the Invention

[0003] The purpose of this invention is to provide a coal unloading adjustment device for the head of a scraper conveyor, which solves the problem that the coal unloading height and angle of the conveyor head affect the service life of the belt and the safety of the workers.

[0004] The technical solution adopted by this invention to solve its technical problem is: A scraper conveyor head coal unloading adjustment device is characterized by comprising a guide chute, a connecting plate assembly, a horizontal cylinder, a pressure plate, a height adjustment cylinder, a spray system, a limit pin, an unloading chute, an unloading baffle, and a hinge pin; the guide chute is connected to the unloading chute via the horizontal cylinder; the connecting plate assembly is connected to the unloading chute via the pressure plate and bolts; the height adjustment cylinder is connected to both the connecting plate assembly and the unloading baffle via connecting pins; the spray system is connected to the unloading baffle via connecting pins; the unloading chute is connected to the unloading baffle via hinge pins; and the unloading baffle is connected to the conveyor head via bolts.

[0005] Furthermore, the feed trough is provided with connecting ears, a bottom plate and side plates, which are welded together to form a whole.

[0006] Furthermore, the connecting plate assembly is provided with a connecting plate and connecting ears, which are welded together to form a whole.

[0007] Furthermore, the unloading chute is provided with a lower limit position, an upper limit position groove, a connecting ear, and a connecting plate. The connecting plate is provided with a limit hole and a hinge hole. The lower limit position, the upper limit position groove, the connecting ear, and the connecting plate are connected into a whole by welding.

[0008] Furthermore, the unloading baffle is provided with a connecting plate, a connecting ear, a side plate, and a connecting plate. The side plate is provided with a limit hole and a hinge hole. The connecting plate, the connecting ear, the side plate, and the connecting plate are connected into a whole by welding.

[0009] The beneficial effects of this invention are mainly reflected in: The scraper conveyor head coal unloading adjustment device provided by this invention has a wide range of adaptability and can solve various problems such as belt damage and coal spillage caused by the inability to adjust the coal unloading stiffness and angle.

[0010] The scraper conveyor head coal unloading adjustment device provided by the present invention adopts a welded structure, has a simple design principle, is easy to implement, and has good economic and practical performance.

[0011] The scraper conveyor head coal unloading adjustment device provided by this invention can be adjusted according to the coal unloading needs of the underground conveyor head, and the operation process is safe and reliable. Attached Figure Description

[0012] The accompanying drawings constituting this invention are used to provide a further understanding of the invention, and the illustrative embodiments of the invention and their descriptions are used to explain the invention and do not constitute an improper limitation of the invention.

[0013] In the attached diagram: Figure 1 This is the state of the scraper conveyor head coal unloading adjustment device before adjustment.

[0014] Figure 2 This is the state after adjustment of the coal unloading adjustment device at the head of the scraper conveyor.

[0015] Figure 3 This is a schematic diagram of the material guide trough structure.

[0016] Figure 4 This is a schematic diagram of the connecting plate assembly structure.

[0017] Figure 5 This is a schematic diagram of the unloading chute structure.

[0018] Figure 6 This is a schematic diagram of the unloading baffle structure.

[0019] Figure 7 This is a schematic diagram of the connecting plate structure.

[0020] Figure 8 This is a schematic diagram of the side panel structure.

[0021] In the diagram: 1. Guide chute, 2. Connecting plate assembly, 3. Horizontal cylinder, 4. Pressure plate, 5. Height adjustment cylinder, 6. Spray system, 7. Limit pin, 8. Unloading chute, 9. Unloading baffle, 10. Hinge pin. Detailed Implementation

[0022] The technical solutions of the present invention will be described in detail below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all of them.

[0023] like Figure 1 As shown, this invention provides a coal unloading adjustment device for a scraper conveyor head, characterized by comprising a guide chute 1, a connecting plate assembly 2, a horizontal cylinder 3, a pressure plate 4, a height adjustment cylinder 5, a spray system 6, a limit pin 7, an unloading chute 8, an unloading baffle 9, and a hinge pin 10. The guide chute 1 is connected to the unloading chute 8 via the horizontal cylinder 3. The connecting plate assembly 2 is connected to the unloading chute 8 via the pressure plate 4 and bolts. The height adjustment cylinder 5 is connected to both the connecting plate assembly 2 and the unloading baffle 9 via connecting pins. The spray system 6 is connected to the unloading baffle 9 via connecting pins. The unloading chute 8 is connected to the unloading baffle 9 via the hinge pin 10, and the unloading baffle 9 is bolted to the conveyor head.

[0024] like Figure 1 and Figure 2 As shown, the height and angle adjustment process of a scraper conveyor head coal unloading adjustment device is as follows: First, by controlling the hydraulic control system, fluid is supplied to the height-adjusting cylinder 6, causing the piston rod to extend and adjusting the height and angle of the unloading chute 8. This ensures that the unloading height and angle of the unloading chute 8 are suitable for the current underground working conditions, and is fixed by the limit pin 7. If the unloading height still cannot meet the working conditions, the extension length of the guide chute 1 can be further adjusted until a suitable unloading height is achieved. The spray system 6 is turned on during the operation of the transfer machine to reduce dust during the coal unloading process.

[0025] like Figure 3 and Figure 5 As shown, the guide trough is equipped with a connecting lug 11, a bottom plate 12, and a side plate 13, while the discharge trough is equipped with a lower limit groove 81, an upper limit groove 82, a connecting lug 83, and a connecting plate 84. The connecting lug 11 of the guide trough and the connecting lug 83 of the discharge trough are connected by a horizontal cylinder to control the extension length of the guide trough. The bottom plate 12 and the side plate 13 of the guide trough move within the lower limit groove 81 and the upper limit groove 82 of the discharge trough, respectively, to ensure the stability of the guide trough during the extension and retraction process.

[0026] like Figures 4-6 As shown, the connecting plate assembly is provided with a connecting plate 21 and a connecting ear 22. The connecting plate 21 is installed on the unloading chute using bolts and a pressure plate. The connecting ear 22 of the connecting plate assembly and the connecting ear 92 of the unloading baffle are connected by a height adjustment cylinder to control the height and angle of the unloading chute.

[0027] like Figure 7 and Figure 8As shown, the unloading chute connecting plate is provided with limit holes 841 and hinge holes 842, and the unloading baffle side plate is provided with limit holes 931 and hinge holes 932. The hinge holes 842 of the unloading chute connecting plate and the hinge holes 932 of the unloading baffle side plate are connected by hinge pins to realize the rotation of the unloading chute. The multiple limit holes 841 provided in the unloading chute connecting plate and the multiple limit holes 931 provided in the unloading baffle side plate can realize multi-angle adjustment. The use of positioning pins for connection allows it to directly bear external loads, thereby avoiding the hydraulic cylinder being in a state of stress for a long time.

[0028] It should be understood that the above detailed description of the technical solutions of the present invention with reference to preferred embodiments is illustrative and not restrictive. Those skilled in the art can modify the technical solutions described in the embodiments or make equivalent substitutions for some of the technical features based on reading this specification, and such modifications or substitutions do not cause the essence of the corresponding technical solutions to depart from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. A scraper conveyor head coal unloading adjustment device, characterized in that, The system includes a guide chute (1), a connecting plate assembly (2), a horizontal cylinder (3), a pressure plate (4), a height adjustment cylinder (5), a spray system (6), a limit pin (7), a discharge chute (8), a discharge baffle (9), and a hinge pin (10). The guide chute (1) is connected to the discharge chute (8) via the horizontal cylinder (3). The connecting plate assembly (2) is connected to the discharge chute (8) via the pressure plate (4) and bolts. The height adjustment cylinder (5) is connected to the connecting plate assembly (2) and the discharge baffle (9) via connecting pins. The spray system (6) is connected to the discharge baffle (9) via connecting pins. The discharge chute (8) is connected to the discharge baffle (9) via hinge pins (10), and the discharge baffle (9) is connected to the transfer machine head via bolts.

2. The scraper conveyor head coal unloading adjustment device according to claim 1, characterized in that, The feed chute (1) is provided with connecting lugs (11), a bottom plate (12) and a side plate (13).

3. The scraper conveyor head coal unloading adjustment device according to claim 1, characterized in that, The connecting plate assembly (2) is provided with a connecting plate (21) and a connecting ear (22).

4. The scraper conveyor head coal unloading adjustment device according to claim 1, characterized in that, The unloading chute (8) is equipped with a lower limit (81), an upper limit chute (82), a connecting lug (83) and a connecting plate (84).

5. The scraper conveyor head coal unloading adjustment device according to claim 1, characterized in that, The unloading baffle (9) is provided with a connecting plate (91), a connecting ear (92), a side plate (93) and a connecting plate (94).

6. The scraper conveyor head coal unloading adjustment device according to claim 4, characterized in that, The connecting plate (84) is provided with a limit hole (841) and a hinge hole (842).

7. The scraper conveyor head coal unloading adjustment device according to claim 5, characterized in that, The side plate (93) is provided with a limit hole (931) and a hinge hole (932).

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