A centre trough for a mineral conveyor

Abstract

The utility model discloses a middle trough of mineral conveyer, belongs to the scraper conveying technical field, including two groups of recovery subassembly, and recovery subassembly includes filter screen, first water pipe, and the both sides of middle plate upper end are provided with collecting groove, and one end of first water pipe is communicated with the slot mouth department of collecting groove, and the other end is communicated with water tank, and filter screen is located between first water pipe and collecting groove. The utility model discloses a middle trough of mineral conveyer, through spraying mechanism, the lubricating liquid in water tank can be extracted and is sprayed to the surface of middle plate from its spraying end, forms a layer of even lubricating film, along with the continuous operation of scraper chain, the lubricating film on middle plate is constantly replenished, and the friction coefficient between scraper and middle plate is effectively reduced, and the additional wear and tear produced because of dry friction is avoided, and the redundant lubricating liquid can flow into collecting groove, and collecting groove will guide the lubricating liquid into first water pipe after filtering through filter screen, and finally flows back into water tank through first water pipe.

Description

Technical Field

[0001] This utility model relates to the field of scraper conveying technology, and in particular to a central trough of a mineral conveyor. Background Technology

[0002] A scraper conveyor is a device that uses a scraper chain as a traction component to transport bulk materials within a trough. If its adjacent intermediate troughs can be bent to a limited extent in both the horizontal and vertical directions, it is called a flexible scraper conveyor. In current coal mining faces, scraper conveyors not only undertake the task of transporting coal and materials, but also serve as the running track for coal mining machines, thus becoming an indispensable core piece of equipment in modern coal mining technology. The main structure and components of scraper conveyors are basically the same, consisting of three parts: the head section, the middle section, and the tail section. The middle section includes components such as transition troughs, intermediate troughs, chains, and scrapers. However, existing intermediate troughs have the defect of not being able to adjust their length, which leads to problems of excessive or insufficient length in practical applications, thus limiting their use and adversely affecting their normal operation.

[0003] To address the aforementioned issues, a new testing fixture has emerged. For example, Chinese Utility Model Patent CN223015594U discloses a wear-resistant scraper conveyor center trough, comprising two side plates, with a central plate fixedly connected between the middle ends of the two side plates. A sound-insulating plate is fixedly embedded inside the central plate. This wear-resistant scraper conveyor center trough, through rolling columns installed on the bottom plate, supports the chain during its return stroke, effectively reducing the direct friction pressure between the chain and the bottom plate, significantly improving overall wear resistance, and substantially extending the equipment's service life. A continuous and stable lubrication supply is provided: the lubrication system delivers lubricant from the water tank to the spray nozzle via a pump, which then sprays the lubricant onto the surface of the central plate at a downward angle. This design ensures that the central plate continuously receives a stable and adequate amount of lubricant during operation, effectively avoiding dry friction and additional wear caused by insufficient lubrication, while also cooling high-temperature coal gangue or coal lumps. However, the aforementioned central trough sprays a large amount of lubricant onto the surface of the intermediate plate through nozzles. If too little is sprayed, especially at the edge of the intermediate plate or during high-speed operation, lubrication blind spots may occur, reducing the wear resistance effect. If too much is sprayed, lubricant will be wasted. Therefore, a central trough for a mineral conveyor is proposed to solve the above problems. Utility Model Content

[0004] The technical problem to be solved by this utility model is to overcome the defects of the prior art and provide a central trough for a mineral conveyor.

[0005] To solve the above-mentioned technical problems, this utility model provides the following technical solution:

[0006] This utility model discloses a central trough for a mineral conveyor, comprising a central plate, two side plates, a spraying mechanism, a bottom plate, and rolling columns. The two side plates are fixed to both sides of the central plate, and the bottom plate is fixed between the two side plates. Multiple grooves are equidistantly arranged on the bottom plate, and the rolling columns are rotatably connected within the grooves. Each side plate is equipped with a water tank. The spraying mechanism is located on the side plate to spray oil from the water tank through its spraying end. The system also includes two sets of recovery components, each comprising a filter screen and a first water pipe. Collection troughs are formed on both sides of the upper end of the central plate. One end of the first water pipe is connected to the opening of the collection trough, and the other end is connected to the water tank. The filter screen is located between the first water pipe and the collection trough.

[0007] In a preferred embodiment of this utility model, the filter screen is fitted onto the first water pipe and is fixedly connected to the intermediate plate by fixing screws.

[0008] As a preferred technical solution of this utility model, the spraying mechanism includes two sets of spraying components. Each spraying component includes a pump body, a second water pipe, a spray pipe, and multiple nozzles. The pump body is mounted on the corresponding water tank, and its oil inlet end is connected to the water tank and its oil outlet end is connected to the second water pipe. The other end of the second water pipe is connected to the corresponding spray pipe. The multiple nozzles are horizontally moved on the corresponding spray pipe by an adjustment component.

[0009] As a preferred technical solution of this utility model, the adjustment component includes a telescopic cylinder and a moving block. A sliding groove is provided on the side plate. The moving block is horizontally slidably disposed in the sliding groove in the front-back direction. The telescopic cylinder is disposed on the side plate, and its telescopic rod is horizontally disposed in the front-back direction and connected and fixed to the moving block. The nozzle is connected to the spray pipe through a corresponding hose. The nozzle is mounted on the upper end of the moving block through a mounting bracket.

[0010] As a preferred technical solution of this utility model, it also includes a stirring mechanism, which includes a motor and a stirring rod. The motor is mounted on the water tank, and its output shaft is horizontally arranged in the front-to-back direction and coaxially connected to the stirring rod. The stirring rod is located inside the water tank, and its other end is rotatably connected to the inner side wall of the water tank. The motor and the pump body are both electrically connected to the controller.

[0011] As a preferred technical solution of this utility model, it also includes multiple support legs, which are located at the bottom end of the side plate and are fixedly connected to the corresponding water tank.

[0012] Compared with the prior art, the beneficial effects of this utility model are as follows: 1. When the scraper chain is returning, the rolling column will effectively support the chain, significantly reducing the direct contact and friction between the chain and the bottom plate. During the process of the scraper pushing the coal block, the lubricating fluid in the water tank can be drawn out by the spraying mechanism and sprayed onto the surface of the intermediate plate from its spraying end to form a uniform lubricating film. As the scraper chain continues to run, the lubricating film on the intermediate plate is constantly replenished, effectively reducing the friction coefficient between the scraper and the intermediate plate and avoiding additional wear caused by dry friction. Excess lubricating fluid will flow into the collection tank, and the collection tank will filter the lubricating fluid through the filter screen and then guide it into the first water pipe, and finally flow back into the water tank through the first water pipe.

[0013] 2. Start the pump body to draw out the lubricating fluid from the water tank and spray it out from multiple nozzles through the second water pipe and spray pipe to ensure that the lubricating fluid can be sprayed on the surface of the middle plate. At the same time, start the telescopic cylinder. The telescopic rod of the telescopic cylinder can drive the moving block to move horizontally in the front and back direction. The moving block can drive the mounting frame and nozzles to move horizontally back and forth in the front and back direction, thereby achieving a larger and more comprehensive spray and avoiding spray blind spots. Attached Figure Description

[0014] The accompanying drawings are provided to further illustrate the present invention and form part of the specification. They are used together with the embodiments of the present invention to explain the present invention, but do not constitute a limitation thereof. In the drawings: Figure 1 This is a schematic diagram of the overall structure of this utility model; Figure 2 yes Figure 1 Enlarged view of region A; Figure 3 yes Figure 1 Enlarged view of region B; In the diagram: 1. Middle plate; 2. Side panels; 3. Water tank; 41. Filter screen; 42. First water pipe; 43. Collection tank; 51. Pump body; 52. Second water pipe; 53. Spray pipe; 54. Spray head; 551. Telescopic cylinder; 552. Moving block; 553. Hose; 554. Mounting bracket; 61. Electric motor; 7. Supporting leg; 8. Base plate; 9. Rolling column. Detailed Implementation

[0015] The preferred embodiments of the present invention will be described below with reference to the accompanying drawings. It should be understood that the preferred embodiments described herein are for illustration and explanation only and are not intended to limit the present invention.

[0016] Example 1: Figure 1-3 This utility model provides a central trough for a mineral conveyor, including a central plate 1, two side plates 2, a spraying mechanism, a bottom plate 8, and rolling columns 9. The two side plates 2 are fixed on both sides of the central plate 1, and the bottom plate 8 is fixed between the two side plates 2. Multiple grooves are equally spaced on the bottom plate 8, and the rolling columns 9 are rotatably connected in the grooves. Each side plate 2 is provided with a water tank 3. The spraying mechanism is located on the side plate 2 to spray the oil in the water tank 3 from its spraying end. It also includes two sets of recovery components. The recovery components include a filter screen 41 and a first water pipe 42. Collection troughs 43 are opened on both sides of the upper end of the central plate 1. One end of the first water pipe 42 is connected to the opening of the collection trough 43, and the other end is connected to the water tank 3. The filter screen 41 is located between the first water pipe 42 and the collection trough 43.

[0017] In this embodiment, when the scraper chain is returning, the rolling column 6 effectively supports the chain, significantly reducing the direct contact and friction between the chain and the bottom plate 8. During the process of the scraper pushing the coal block, the lubricating fluid in the water tank 3 can be extracted by the spraying mechanism and sprayed onto the surface of the intermediate plate 1 from its spraying end to form a uniform lubricating film. As the scraper chain continues to run, the lubricating film on the intermediate plate 1 is continuously replenished, effectively reducing the coefficient of friction between the scraper and the intermediate plate 1, and avoiding additional wear caused by dry friction. Excess lubricating fluid will flow into the collection tank 43, and the collection tank 43 will filter the lubricating fluid through the filter screen 41 and then introduce it into the first water pipe 42, and finally flow back into the water tank 3 through the first water pipe 42.

[0018] Preferably, the filter screen 41 is fitted onto the first water pipe 42 and is fixedly connected to the intermediate plate 1 by fixing screws.

[0019] The filter screen 41 is easy to remove, which can prevent excessive accumulation of impurities at the filter screen 41.

[0020] Example 2: Preferably, as another embodiment of this utility model, in Figure 1 Based on the illustrated embodiment, the spraying mechanism includes two spraying components. Each spraying component includes a pump body 51, a second water pipe 52, a spray pipe 53, and multiple nozzles 54. The pump body 51 is mounted on a corresponding water tank 3, with its oil inlet connected to the water tank 3 and its oil outlet connected to the second water pipe 52. The other end of the second water pipe 52 is connected to the corresponding spray pipe 53. The multiple nozzles 54 are horizontally movable on their respective spray pipes 53 via an adjusting component. More specifically, the adjusting component includes a telescopic cylinder 551 and a moving block 552. A groove is provided on the side plate 2, and the moving block 552 is horizontally slidable within the groove in the front-to-back direction. The telescopic cylinder 551 is mounted on the side plate 2, and its telescopic rod is horizontally arranged in the front-to-back direction and connected and fixed to the moving block 552. The nozzles 54 are connected to the spray pipe 53 via corresponding hoses 553, and the nozzles 54 are mounted on the upper end of the moving block 552 via a mounting bracket 554.

[0021] In this embodiment, as one implementation method, activating the pump body 51 can extract the lubricating fluid from the water tank 3 and spray it out from multiple nozzles 54 through the second water pipe 52 and the spray pipe 53, ensuring that the lubricating fluid can be sprayed on the surface of the intermediate plate 1. At the same time, activating the telescopic cylinder 551 (the telescopic cylinder 551 is a cylinder or an electric push rod) can drive the moving block 552 to move horizontally in the front-back direction. The moving block 552 can drive the mounting bracket 554 and the nozzles 54 to move horizontally back and forth in the front-back direction, thereby achieving a larger and more comprehensive spray and avoiding spray blind spots.

[0022] Example 3: Preferably, as another embodiment of this utility model, in Figure 1 Based on the embodiment shown, a stirring mechanism is also included. The stirring mechanism includes a motor 61 and a stirring rod. The motor 61 is mounted on the water tank 3, and its output shaft is horizontally arranged in the front-to-back direction and coaxially connected to the stirring rod. The stirring rod is located inside the water tank 3, and its other end is rotatably connected to the inner side wall of the water tank 3. The motor 61 and the pump body 51 are both electrically connected to the controller.

[0023] In this embodiment, as one implementation method, when the surface of the intermediate plate 1 needs lubrication, the controller controls the motor 61 to work. The output torque of the motor 61 is transmitted to the stirring rod through the coupling. The rotation of the stirring rod can stir the lubricant in the water tank 3. After stirring for a certain period of time, the controller controls the pump body 51 to work, so that the pump body 51 sprays the lubricant in the water tank 3 through the second water pipe 52 and the spray pipe 53 from multiple nozzles 54 onto the surface of the intermediate plate 1.

[0024] Preferably, it also includes multiple support legs 7, which are located at the bottom of the side plate 2 and are fixedly connected to the corresponding water tank 3.

[0025] The support leg 7 can support the side plate 2 and enhance the stability of the water tank 3.

[0026] The working principle of this utility model: When the scraper chain returns, the rolling column 6 effectively supports the chain, significantly reducing direct contact and friction between the chain and the bottom plate 8. During the scraper's movement of the coal block, the pump body 51 is activated to extract lubricating fluid from the water tank 3. This fluid is then sprayed from multiple nozzles 54 through the second water pipe 52 and the spray pipe 53, ensuring that the lubricating fluid is sprayed onto the surface of the intermediate plate 1. Simultaneously, the telescopic cylinder 551 is activated. The extension and retraction of the telescopic rod of the telescopic cylinder 551 drives the moving block 552 to move horizontally in the front-back direction. The moving block 552 can then drive the mounting frame. 554 and nozzle 54 move horizontally back and forth in the front and back direction to achieve a larger and more comprehensive spray, so that a uniform lubricating film is formed on the surface of the intermediate plate 1. As the scraper chain continues to run, the lubricating film on the intermediate plate 1 is constantly replenished, effectively reducing the friction coefficient between the scraper and the intermediate plate 1, avoiding additional wear caused by dry friction. Excess lubricant will flow into the collection tank 43, and the collection tank 43 will filter the lubricant through the filter screen 41 and then guide it into the first water pipe 42, and finally flow back into the water tank 3 through the first water pipe 42.

[0027] Finally, it should be noted that the above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A central trough for a mineral conveyor, comprising a central plate (1), two side plates (2), a spraying mechanism, a bottom plate (8), and rolling columns (9), wherein the two side plates (2) are fixed on both sides of the central plate (1), the bottom plate (8) is fixed between the two side plates (2), and the bottom plate (8) is provided with a plurality of grooves at equal intervals, the rolling columns (9) being rotatably connected in the grooves, each side plate (2) being provided with a water tank (3), and the spraying mechanism being provided on the side plate (2) to spray lubricating fluid from the water tank (3) from its spraying end, characterized in that, It also includes two sets of recycling components, the recycling components include a filter screen (41) and a first water pipe (42). Collection troughs (43) are provided on both sides of the upper end of the middle plate (1). One end of the first water pipe (42) is connected to the opening of the collection trough (43) and the other end is connected to the water tank (3). The filter screen (41) is located between the first water pipe (42) and the collection trough (43).

2. The central trough of a mineral conveyor according to claim 1, characterized in that, The filter screen (41) is fitted onto the first water pipe (42) and is fixedly connected to the intermediate plate (1) by fixing screws.

3. The central trough of a mineral conveyor according to claim 1, characterized in that, The spraying mechanism includes two spraying components. Each spraying component includes a pump body (51), a second water pipe (52), a spray pipe (53), and multiple nozzles (54). The pump body (51) is mounted on the corresponding water tank (3), with its oil inlet end connected to the water tank (3) and its oil outlet end connected to the second water pipe (52). The other end of the second water pipe (52) is connected to the corresponding spray pipe (53). The multiple nozzles (54) are horizontally moved on the corresponding spray pipe (53) by an adjustment component.

4. The central trough of a mineral conveyor according to claim 3, characterized in that, The adjustment assembly includes a telescopic cylinder (551) and a moving block (552). A sliding groove is provided on the side plate (2). The moving block (552) is horizontally slidably disposed in the sliding groove in the front-back direction. The telescopic cylinder (551) is disposed on the side plate (2), and its telescopic rod is horizontally disposed in the front-back direction and connected and fixed to the moving block (552). The nozzle (54) is connected to the spray pipe (53) through a corresponding hose (553). The nozzle (54) is mounted on the upper end of the moving block (552) through a mounting bracket (554).

5. The central trough of a mineral conveyor according to claim 3, characterized in that, It also includes a stirring mechanism, which includes a motor (61) and a stirring rod. The motor (61) is mounted on the water tank (3), and its output shaft is horizontally arranged in the front-back direction and coaxially connected to the stirring rod. The stirring rod is located inside the water tank (3), and its other end is rotatably connected to the inner wall of the water tank (3). The motor (61) and the pump body (51) are both electrically connected to the controller.

6. The central trough of a mineral conveyor according to claim 1, characterized in that, It also includes multiple support legs (7), which are located at the bottom of the side plate (2) and are fixedly connected to the corresponding water tank (3).

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