Telescopic device mounted at front end of self-moving tail of belt conveyor

Abstract

The utility model relates to the technical field of self-moving tails of belt conveyors of underground coal mine crossheading equipment, in particular to a telescopic device mounted at the front end of a self-moving tail of a belt conveyor. The device mainly comprises fixed sleeves, telescopic sleeves, telescopic beams, movable pin shafts, fixed pin shafts, vertical cylinders, telescopic cylinders and connecting seats which are arranged on the two sides of a self-moving tail body of the belt conveyor in parallel, and further comprises a carrier roller frame. The fixing sleeves are connected to the two sides of the self-moving tail body of the belt conveyor through pins. One end of the telescopic cylinder is fixed on the telescopic beam, and the other end is fixed on the fixing sleeve through a connecting seat. The telescopic beam and the telescopic sleeve as well as the telescopic sleeve and the fixing sleeve are guided and limited through pin shafts and long-groove-shaped guide rails. The device is simple in structure and smooth in telescopic action. According to the self-advancing tail conveying belt, the frequency of disassembling the middle frame of the belt conveyor can be reduced, and meanwhile the self-advancing tail conveying belt can adapt to the working condition that the ground fluctuation of a crossheading is large by increasing or decreasing the height of the belt surface of the self-advancing tail conveying belt of the belt conveyor.

Description

Technical Field

[0001] The utility model relates to the technical field of the self-moving tail of the belt conveyor of the coal mine underground chute transportation equipment, and is specifically a retractable device installed at the front end of the self-moving tail of the belt conveyor. The utility model can reduce the number of times the belt conveyor intermediate frame is disassembled, and at the same time, the height of the conveyor belt surface of the self-moving tail of the belt conveyor can be adjusted to adapt to the working conditions of large fluctuations in the chute ground by raising or lowering the height of the conveyor belt surface of the self-moving tail of the belt conveyor. Background Art

[0002] During the coal mining process, as the coal mining machine, scraper conveyor, and hydraulic support on the working face continue to move toward the coal wall, the transfer machine and the self-moving tail of the belt conveyor in the transport chute also move forward, causing the distance between the self-moving tail of the belt conveyor and the intermediate frame of the belt conveyor to continue to decrease. All comprehensive mining equipment needs to be shut down and the corresponding number of intermediate frames of the belt conveyor need to be disassembled to reserve walking space for the self-moving tail of the belt conveyor before the coal mining operation can continue. The intermediate frame of the belt conveyor needs to be disassembled manually, and the disassembly process takes about 30 minutes, which seriously wastes effective production time and reduces coal mining efficiency. Summary of the invention

[0003] In order to solve the above problems, the utility model provides a retractable device installed at the front end of the self-moving tail of the belt conveyor. When the distance between the self-moving tail of the belt conveyor and the belt conveyor is large, the device is extended to increase the length of the supporting conveyor belt; when the distance between the self-moving tail of the belt conveyor and the belt conveyor is small, the device is retracted to increase the distance between the two and reduce the number of times the middle frame of the belt conveyor is disassembled. The utility model can reduce the number of times the middle frame of the belt conveyor is disassembled, save production time, and improve coal mining efficiency. At the same time, the height of the conveyor belt surface of the self-moving tail of the belt conveyor can be raised or lowered to adapt to the working conditions with large fluctuations in the chute ground.

[0004] The technical solution adopted by the utility model to solve its technical problems is:

[0005] A telescopic device installed at the front end of a belt conveyor self-moving tail, mainly comprising a fixed sleeve, a telescopic sleeve, a telescopic beam, a movable pin, a fixed pin, a vertical cylinder, a telescopic cylinder, and a roller frame arranged in parallel on both sides of the main body of the belt conveyor self-moving tail, and also including a roller frame. It is characterized in that the telescopic beam and the telescopic sleeve, the telescopic sleeve and the fixed sleeve are guided and limited by the pin and the long groove guide rail.

[0006] First, assemble the telescopic beam and telescopic sleeve together, then pass the fixed pin through the long slotted guide rail of the telescopic beam and the pin hole of the telescopic sleeve at the same time, and align the pin end face with the outer side of the telescopic sleeve and weld it to the telescopic sleeve (that is, the length of the fixed pin is consistent with the width of the telescopic sleeve). Then install the assembled telescopic beam, telescopic sleeve and fixed pin together in the fixed sleeve. Then pass the movable pin through the pin hole of the fixed sleeve and the long slotted guide rail at the bottom of the telescopic sleeve at the same time, and then fix the movable pin to the fixed sleeve with bolts.

[0007] Finally, the fixed sleeve is installed parallel to both sides of the tail body of the belt conveyor through pins. One end of the telescopic cylinder is fixed on the telescopic beam, and the other end is fixed on the fixed sleeve through a connecting seat. The roller frame is fixed to the middle position of the entire device by bolts, and the telescopic beam, telescopic sleeve and fixed sleeve are all equipped with roller frames. The telescopic beam uses the telescopic cylinder as the power to complete the extension and retraction action. The fixed pin shaft on the telescopic sleeve slides relatively in the long groove guide rail of the telescopic beam, and when it is stuck at one end of the guide rail, it drives the telescopic sleeve to complete the extension and extension action. The movable pin shaft on the fixed sleeve slides relatively in the long groove guide rail of the telescopic sleeve to prevent the telescopic sleeve from detaching from the fixed sleeve when the telescopic cylinder is fully extended.

[0008] The vertical cylinder is fixed to the side of the fixed sleeve by a pin. When the vertical cylinder is extended, the belt surface of the conveyor belt rises; when the vertical cylinder is retracted, the belt surface of the conveyor belt falls.

[0009] The stroke of the telescopic cylinder is slightly smaller than the sum of the stroke of the fixed pin relative to the long groove guide rail of the telescopic beam and the stroke of the movable pin relative to the long groove guide rail of the telescopic sleeve.

[0010] The beneficial effects of the utility model are as follows:

[0011] It can reduce the number of times the intermediate frame of the belt conveyor is dismantled, save production time and improve coal mining efficiency.

[0012] The height of the conveyor belt surface at the tail of the belt conveyor can be raised or lowered to adapt to the working conditions with large fluctuations in the chute surface.

[0013] The relative movement, limiting and guiding among the telescopic beam, telescopic sleeve and fixed sleeve are completed by the relative movement of the pin in the long groove guide rail. The telescopic action is smooth, the overall strength is high and the cost is low. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 This is a front view of the utility model when it is fully retracted.

[0015] Figure 2 It is a top view of the utility model when it is fully retracted.

[0016] Figure 3 This is a front view of the utility model fully extended.

[0017] Figure 4 It is a top view of the utility model when it is fully extended.

[0018] In the figure: 1. telescopic beam, 2. fixed pin shaft, 3. movable pin shaft, 4. telescopic sleeve, 5. fixed sleeve, 6. roller frame, 7. belt conveyor self-moving tail body, 8. vertical cylinder, 9. telescopic cylinder, 10. connecting seat. DETAILED DESCRIPTION

[0019] The utility model is further described below in conjunction with the accompanying drawings and implementation examples.

[0020] like Figure 1 , 2 As shown in Figures 3 and 4, a telescopic device installed at the front end of the self-moving tail of a belt conveyor mainly comprises a fixed sleeve 5, a telescopic sleeve 4, a telescopic beam 1, a movable pin 2, a fixed pin 3, a vertical cylinder 8, a telescopic cylinder 9, which are arranged in parallel on both sides of the main body of the self-moving tail of the belt conveyor, and also comprises a roller frame 6. It is characterized in that the telescopic beam and the telescopic sleeve, the telescopic sleeve and the fixed sleeve are guided and limited by the pin and the long groove guide rail.

[0021] During the actual assembly process, the telescopic beam 1 and the telescopic sleeve 4 are first assembled together, and then the fixed pin 2 is passed through the long groove guide rail of the telescopic beam 1 and the pin hole of the telescopic sleeve 4 at the same time, and the end face of the pin is aligned with the outer side surface of the telescopic sleeve 4 and then welded to the telescopic sleeve 4 (that is, the length of the fixed pin 2 is consistent with the width of the telescopic sleeve 4).

[0022] Then the assembled telescopic beam 1, telescopic sleeve 4 and fixed pin 2 are installed together in the fixed sleeve 5. Then the movable pin 3 is passed through the pin hole of the fixed sleeve 5 and the long groove guide rail at the bottom of the telescopic sleeve 4 at the same time, and then the movable pin 3 is fixed to the fixed sleeve 5 with bolts.

[0023] Finally, the fixed sleeve 5 is installed parallel to both sides of the belt conveyor self-moving tail body 7 through pins. The roller frame 6 is fixed to the middle position of the entire device through bolts, and the roller frame 6 is installed on the fixed sleeve 5, the telescopic sleeve 4, and the telescopic beam 1. One end of the telescopic cylinder 9 is fixed to the telescopic beam 1, and the other end is fixed to the fixed sleeve 4 through the connecting seat 10. The vertical cylinder 8 is fixed to the side of the fixed sleeve 5 through a pin.

[0024] During coal mining operations, the device is fully extended to increase the length of the supporting conveyor belt. The specific extension process of the device is as follows: the telescopic cylinder 9 extends, driving the telescopic beam 1 to extend. During the extension process of the telescopic beam 1, the fixed pin 2 slides relatively in the long groove guide rail of the telescopic beam 1. When the fixed pin 2 is stuck at the rightmost end of the long groove guide rail, the movable pin 2 drives the telescopic sleeve 4 to extend. During the extension process of the telescopic sleeve 4, the fixed pin 3 slides relatively in the long groove guide rail of the telescopic sleeve 4. When the fixed pin 3 is stuck at the rightmost end of the long groove guide rail, the telescopic sleeve stops extending, and the telescopic cylinder is also fully extended.

[0025] As the transfer machine continues to move forward, when the distance between the self-moving tail of the belt conveyor and the middle frame of the belt conveyor is close, the device is fully retracted. In this way, the distance between the self-moving tail of the belt conveyor and the middle frame of the belt conveyor can be increased, and the number of times the middle frame of the belt conveyor is disassembled can be reduced. The specific retraction process of the device is as follows: the telescopic cylinder 9 retracts, driving the telescopic beam 1 to retract. During the retraction process of the telescopic beam 1, the fixed pin 2 slides relatively in the long groove guide rail of the telescopic beam 1. When the fixed pin 2 is stuck at the leftmost end of the long groove guide rail, the fixed pin 2 drives the telescopic sleeve 4 to retract. During the retraction process of the telescopic sleeve 4, the fixed pin 3 slides relatively in the long groove guide rail of the telescopic sleeve 4. When the fixed pin 3 is stuck at the leftmost end of the long groove guide rail, the telescopic sleeve stops retracting, and the telescopic cylinder is also fully retracted.

[0026] In coal mining operations, rotating the device can make the belt conveyor self-moving tail better adapt to the working conditions of large fluctuations in the chute surface, avoid the large belt height difference between the belt conveyor and the belt conveyor self-moving tail causing coal to be scattered, or the belt conveyor self-moving tail collides with the top of the transport chute when the climbing angle is too large due to terrain changes. The specific rotation process of the device is: the vertical cylinder 8 extends, the device rotates upward around the pin connecting the fixed sleeve 5 and the self-moving tail body 7, and the belt surface of the conveyor belt rises; the vertical cylinder 8 retracts, the device rotates downward around the pin, and the belt surface of the conveyor belt is lowered.

Claims

1. A telescopic device installed at the front end of a self-moving tail of a belt conveyor, mainly comprising a fixed sleeve (5), a telescopic sleeve (4), a telescopic beam (1), a movable pin (3), a fixed pin (2), a vertical cylinder (8), a telescopic cylinder (9), and a connecting seat (10) arranged in parallel on both sides of a main body (7) of the self-moving tail of the belt conveyor, and also comprising a roller frame (6); the fixed sleeve (5) is connected to both sides of the main body (7) of the self-moving tail of the belt conveyor through a pin; one end of the telescopic cylinder (9) is fixed to the telescopic beam (1), and the other end is fixed to the fixed sleeve (5) through a connecting seat (10); the characteristics are: The telescopic beam (1) and the telescopic sleeve (4), the telescopic sleeve (4) and the fixed sleeve (5) are all guided and limited by a pin shaft and a long groove guide rail.

2. A retractable device installed at the front end of the self-moving tail of a belt conveyor according to claim 1, characterized in that: First, the telescopic beam (1) and the telescopic sleeve (4) are assembled together, and then the fixed pin shaft (2) is passed through the long groove guide rail of the telescopic beam (1) and the pin hole of the telescopic sleeve (4) at the same time, and the pin end face is aligned with the outer side surface of the telescopic sleeve (4) and then welded to the telescopic sleeve (4), and the length of the fixed pin shaft is consistent with the width of the telescopic sleeve.

3. A retractable device installed at the front end of the self-moving tail of a belt conveyor according to claim 1, characterized in that: First, the telescopic beam (1), the telescopic sleeve (4) and the fixed pin shaft (2) are assembled and installed together in the fixed sleeve (5); then, the movable pin shaft (3) is simultaneously passed through the pin hole of the fixed sleeve (5) and the long groove-shaped guide rail at the bottom of the telescopic sleeve (4); finally, the movable pin shaft (3) is fastened to the fixed sleeve (5) with bolts.

4. A retractable device installed at the front end of the self-moving tail of a belt conveyor according to claim 1, characterized in that: The stroke of the telescopic cylinder (9) is slightly smaller than the sum of the stroke of the fixed pin shaft (2) relative to the long groove guide rail of the telescopic beam (1) and the stroke of the movable pin shaft (3) relative to the long groove guide rail of the telescopic sleeve (4).

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