Directional adjustable coal mining tunneling device and method

Abstract

This invention discloses a directional adjustable coal mining tunneling device and method. The coal mining tunneling device of this application includes a tunneling body, a front machine body, a crushing mechanism, an auxiliary impact component, and a connection control mechanism. The front machine body is installed at the front end of the tunneling body, and the crushing mechanism, auxiliary impact mechanism, and connection control mechanism are all installed on the front machine body. This application can effectively handle hard ore bodies, enabling it to maintain stable operation when encountering extrusion pressure, avoiding mechanical damage or jamming caused by hard ore bodies. In addition, this application reduces the need for manual intervention by increasing the degree of automation and intelligence. At the same time, it enhances the continuous operation capability of the device, reducing downtime caused by equipment failure or adjustment. Furthermore, by reducing damage to the surrounding environment of the ore body and through the automatic adjustment mechanism, it reduces the risk of safety accidents and improves the overall operational reliability, solving the technical problem of low crushing efficiency of traditional crushing mechanisms when handling hard ore bodies.

Description

Technical Field

[0001] This invention belongs to the field of coal mining technology, specifically, it relates to a directional adjustable coal mining tunneling device and method. Background Technology

[0002] Coal mining involves a series of technical activities, including exploration, design, construction, production, and management of coal resources. Therefore, it requires scientifically designed mining equipment and methods. In the coal mining field, low crushing efficiency of hard ore bodies is a key factor restricting production efficiency. Simultaneously, insufficient adaptability of mechanical structures leads to equipment malfunctions when handling ore bodies of varying hardness, affecting the continuity and stability of operations. Furthermore, the lack of automation and intelligence means the mining process relies on manual operation, which is not only inefficient but also increases the labor intensity of operators and potential safety risks. Limited continuous operation capacity further exacerbates fluctuations in production efficiency, while equipment safety and reliability issues directly threaten the lives of miners. Therefore, there is a need for a simple, easy-to-operate, highly safe, and efficient directional adjustable coal mining tunneling device and method. Summary of the Invention

[0003] The purpose of this invention is to provide a coal mining tunneling device and method with adjustable direction that is simple in structure, easy to operate, highly safe, and efficient in mining.

[0004] To achieve the above objectives, the present invention adopts the following technical solution:

[0005] An adjustable coal mining tunneling device, comprising a tunneling body, a front body, a crushing mechanism, an auxiliary impact assembly, and a connection control mechanism. The front body is installed at the front end of the tunneling body, and the crushing mechanism, auxiliary impact assembly, and connection control mechanism are all installed on the front body.

[0006] The front unit includes an upper plate, a lower plate, and a rear plate. The upper and lower plates are horizontally arranged, while the rear plate is vertically arranged. The upper end of the rear plate is connected to the rear end of the upper plate, and the lower end of the rear plate is connected to the rear end of the lower plate.

[0007] The crushing mechanism includes a mounting platform, which includes a horizontal mounting plate and a vertical mounting plate. The top of the vertical mounting plate is connected to the rear end of the horizontal mounting plate. The vertical mounting plate is set on the front side of the rear machine plate, and the horizontal mounting plate is set on the lower surface of the upper machine plate. A sleeve rod is installed on the lower surface of the horizontal mounting plate. A through hole in the front-back direction is provided inside the sleeve rod. A sealing air plate is installed in the through hole. An electric impact rod is installed in the through hole. The electric impact rod is located in front of the sealing air plate, so that the electric impact rod and the sealing air plate form a pneumatic damping connection inside the sleeve rod. A crushing head is provided on the movable rod at the front end of the electric impact rod. The movable rod of the electric impact rod reciprocates in the horizontal direction to control the crushing head to crush the ore body.

[0008] The auxiliary impact mechanism includes a fixed platform arranged horizontally at the front and rear. The fixed platform is set on the upper surface of the lower plate. A guide slider is slidably arranged inside the fixed platform. The rear end of the guide slider is connected to the inner wall of the rear side plate of the fixed platform through a first spring and a second spring. The first spring and the second spring are arranged parallel to each other from left to right. The front end of the guide slider passes through the front side plate of the fixed platform. An impact plate is provided at the front end of the guide slider.

[0009] The connection control mechanism includes a horizontally positioned limiting block. A downward-opening groove is provided on the lower surface of the horizontal mounting plate. The top of the limiting block is slidably positioned in the groove. The front end of the limiting block is connected to the rear end of the telescopic slide rod. The front end of the telescopic slide rod is inserted into the through hole of the sleeve rod, so that the telescopic slide rod and the sealing air plate form a pneumatic damping connection inside the sleeve rod. An electrical control component is provided on the limiting block. The bottom end of the electrical control component is connected to a rotating shaft. A first gear is sleeved on the rotating shaft. A take-up reel is provided on the lower plate. A second gear is provided at the top end of the rotating shaft of the take-up reel. The first gear and the second gear mesh. A take-up rope is provided on the take-up reel. The front end of the take-up rope is connected to a guide slider.

[0010] The electronic control assembly includes a control receiving system and a drive source. A control transmission system corresponding to the control receiving system is provided on the vertical mounting plate. When the control receiving system comes into contact with the control transmission system, the control receiving system controls the drive source to provide driving force to the rotating shaft, thereby driving the first gear to rotate.

[0011] The impact plate is an arc-shaped plate, and several breaking protrusions are provided on the front surface of the impact plate.

[0012] A moving component is installed at the bottom of the tunneling body, and a built-in power supply is installed inside the tunneling body to provide power to the moving component.

[0013] The damping coefficient between the telescopic slide rod and the sealing air plate is greater than the damping coefficient between the electric impact rod and the sealing air plate.

[0014] The first gear and the second gear are fitted with protective sleeves, and the rear end of the protective sleeves is connected to the front surface of the rear plate.

[0015] Several release holes are provided on the lower plate.

[0016] The tooth lengths of both the first and second gears are equal to the distance between the control transmission system and the control receiving system.

[0017] A coal mining tunneling method, implemented based on the aforementioned directional adjustable coal mining tunneling device, is characterized by comprising the following steps:

[0018] (1) When the coal mining tunneling device moves to the mining section inside the mine, the moving rod of the electric impact rod moves back and forth to drive the crushing head to repeatedly impact the ore body for tunneling and mining. In the initial state, the first gear and the second gear are in meshing state. The winding rope provides tension to the limit block, so that the first spring and the second spring are in a compressed state, and the first gear is locked, so that the second gear cannot rotate, thereby ensuring that the first spring and the second spring are always in a compressed state.

[0019] (2) When encountering a hard ore body that the crushing mechanism cannot crush by impact, the coal mining tunneling device moves forward continuously, causing the ore body to exert backward pressure on the electric impact rod. Under the action of pressure, the electric impact rod moves backward. Due to the pneumatic damping connection between the electric impact rod and the sealing air plate and between the sealing air plate and the telescopic slide rod, the telescopic slide rod moves backward, which in turn pushes the limit block to move backward, causing the first gear and the second gear to lose their fit.

[0020] (3) When the first gear and the second gear lose their engagement, the second gear is unlocked. At this time, the first spring and the second spring push the guide slider forward, thereby pushing the impact plate to impact the ore body for auxiliary crushing.

[0021] (4) After the limit block moves backward a certain distance, the control receiving system contacts the control transmission system. The control receiving system receives the start command and controls the drive source to provide driving force to the rotating shaft, so that the first gear starts to rotate. When the ore body is broken, the pressure received by the electric impact rod disappears, and the electric impact rod, telescopic slide rod and limit block are all reset. The first gear and the second gear mesh again. The second gear rotates under the drive of the first gear, so that the winding reel drives the winding rope to tighten the guide slider again, and then the first spring and the second spring are pressed again.

[0022] (5) After the first spring and the second spring are compressed, the first gear stops rotating and locks. The above steps (2) to (4) are repeated until the coal mining and tunneling work is completed.

[0023] This application's control mechanism has an electrical control component installed on the limit block. The bottom of the electrical control component is connected to a rotating shaft, on which a first gear is mounted. A winding reel is installed on the lower plate, and a second gear is installed at the top of the rotating shaft of the winding reel. The first and second gears mesh. A winding rope is installed on the winding reel, and its front end is connected to a guide slider. When the control receiving system contacts the control transmission system, the control receiving system receives a start command and controls the drive source to provide driving force to the rotating shaft, causing the first gear to start rotating. After the ore body is broken, the pressure received by the electric impact rod disappears, and the electric impact rod, telescopic slide bar, and limit block all reset. The first and second gears mesh again, and the second gear rotates under the drive of the first gear, causing the winding reel to pull the winding rope to tighten the guide slider again, thereby compressing the first and second springs again. The control mechanism controls the auxiliary impact mechanism for auxiliary crushing, and after crushing, the electrical control component resets all components. This high degree of automation greatly improves coal mining efficiency, and by increasing automation and intelligence, accidents can be effectively reduced, and safety improved.

[0024] In summary, this application features a scientifically designed and structurally sound system capable of effectively handling hard ore bodies, maintaining stable operation even under compressive stress, and preventing mechanical damage or jamming caused by hard ore bodies. Furthermore, this application reduces the need for manual intervention by increasing automation and intelligence. Simultaneously, it enhances the continuous operation capability of the device, reducing downtime due to equipment failure or adjustments. Moreover, by minimizing damage to the surrounding environment of the ore body and employing an automatic adjustment mechanism, it reduces the risk of safety accidents and improves overall operational reliability. It effectively solves the technical problem of low crushing efficiency in traditional crushing mechanisms when handling hard ore bodies, reducing energy consumption. Attached Figure Description

[0025] Figure 1 This is a schematic diagram of the structure of the directional adjustable coal mining tunneling device of the present invention.

[0026] Figure 2 This is a first-view structural schematic diagram of the front body, crushing mechanism, and auxiliary impact mechanism of the present invention.

[0027] Figure 3 This is the second schematic diagram of the front body, crushing mechanism, and auxiliary impact mechanism of the present invention from a second perspective.

[0028] Figure 4 This is a schematic diagram of the connection control mechanism of the present invention.

[0029] Figure 5 yes Figure 4 Enlarged view of section A. Detailed Implementation

[0030] The embodiments of the present invention are further described below with reference to the accompanying drawings.

[0031] like Figure 1-5 As shown, the directional adjustable coal mining tunneling device includes a tunneling body 1, a front body 2, a crushing mechanism 3, an auxiliary impact assembly, and a connection control mechanism. The front body 2 is installed at the front end of the tunneling body 1, and the crushing mechanism 3, the auxiliary impact assembly, and the connection control mechanism are all installed on the front body 2.

[0032] The front body 2 includes an upper plate 27, a lower plate 28 and a rear plate 29. The upper plate 27 and the lower plate 28 are arranged horizontally, and the rear plate 29 is arranged vertically. The upper end of the rear plate 29 is connected to the rear end of the upper plate 27, and the lower end of the rear plate 29 is connected to the rear end of the lower plate 28.

[0033] The crushing mechanism 3 includes a mounting platform 6, which includes a horizontal mounting plate 30 and a vertical mounting plate. The top of the vertical mounting plate is connected to the rear end of the horizontal mounting plate 30. The vertical mounting plate is set on the front side of the rear machine plate 29. The horizontal mounting plate 30 is set on the lower surface of the upper machine plate 27. A sleeve rod 7 is installed on the lower surface of the horizontal mounting plate 30. A through hole in the front-back direction is provided inside the sleeve rod 7. A sealing air plate 17 is installed in the through hole. An electric impact rod 8 is set in the through hole. The electric impact rod 8 is located in front of the sealing air plate 17, so that the electric impact rod 8 and the sealing air plate 17 form a pneumatic damping connection inside the sleeve rod 7. A crushing head 9 is set on the movable rod at the front end of the electric impact rod 8. The movable rod of the electric impact rod 8 reciprocates in the horizontal direction to control the crushing head 9 to crush the ore body.

[0034] The auxiliary impact mechanism 4 includes a fixed platform 10 arranged horizontally at the front and rear. The fixed platform 10 is set on the upper surface of the lower plate 28. A guide slider 11 is slidably arranged inside the fixed platform 10. The rear end of the guide slider 11 is connected to the inner wall of the rear side plate of the fixed platform 10 through a first spring 13 and a second spring. The first spring 13 and the second spring are arranged parallel to each other from left to right. The front end of the guide slider 11 passes through the front side plate of the fixed platform 10. An impact plate 12 is provided at the front end of the guide slider 11.

[0035] The connection control mechanism includes a horizontally positioned limiting block 15. A downward-opening groove 14 is provided on the lower surface of the horizontal mounting plate 30. The top of the limiting block 15 is slidably positioned in the groove 14. The front end of the limiting block 15 is connected to the rear end of the telescopic slide rod 16. The front end of the telescopic slide rod 16 is inserted into the through hole of the sleeve rod 7, so that the telescopic slide rod 16 and the sealing air plate 17 form a pneumatic damping connection inside the sleeve rod 7. An electric control component is provided on the limiting block 15. The bottom end of the electric control component is connected to the rotating shaft 32. A first gear 20 is sleeved on the rotating shaft 32. A take-up reel 18 is provided on the lower plate 28. A second gear 21 is provided at the top end of the rotating shaft of the take-up reel 18. The first gear 20 and the second gear 21 mesh. A take-up rope 19 is provided on the take-up reel 18. The front end of the take-up rope 19 is connected to the guide slider 11.

[0036] The electronic control components include a control receiving system 24 and a drive source. The drive source can be selected from power equipment such as a drive motor. A control transmission system 23 corresponding to the control receiving system 24 is provided on the vertical mounting plate. When the control receiving system 24 comes into contact with the control transmission system 23, the control receiving system 24 controls the drive source to provide driving force to the rotating shaft 32, thereby driving the first gear 20 to rotate.

[0037] The impact plate 12 is an arc-shaped plate, and several crushing protrusions are provided on the front surface of the impact plate 12, which is beneficial to the crushing of the ore body. A moving component is provided at the bottom of the tunneling body 1, and a built-in power supply is installed inside the tunneling body 1 to provide power to the moving component. The damping coefficient between the telescopic slide rod 16 and the sealing air plate 17 is greater than the damping coefficient between the electric impact rod 8 and the sealing air plate 17. The first gear 20 and the second gear 21 are fitted with protective sleeves 25, and the rear end of the protective sleeves 25 is connected to the front surface of the rear machine plate 29. Several release holes 26 are provided on the lower machine plate 28. The tooth lengths of the first gear 20 and the second gear 21 are both equal to the distance between the control transmission system 23 and the control receiving system 24.

[0038] An electrical control component is installed on the limit block 15 of the connection control mechanism. The bottom end of the electrical control component is connected to a rotating shaft 32. A first gear 20 is mounted on the rotating shaft 32. A winding reel 18 is installed on the lower plate 28. A second gear 21 is installed at the top of the rotating shaft of the winding reel 18. The first gear 20 and the second gear 21 mesh. A winding rope 19 is installed on the winding reel 18. The front end of the winding rope 19 is connected to a guide slider 11. When the control receiving system 24 contacts the control transmission system 23, the control receiving system 24 receives a start command and controls the drive source to provide driving force to the rotating shaft 32, causing the first gear 20 to start rotating. And when the ore body is crushed, the electrical... When the pressure received by the moving impact rod 8 disappears, the electric impact rod 8, the telescopic slide rod 16, and the limit block 15 all reset. The first gear 20 and the second gear 21 mesh again. The second gear 21 rotates under the drive of the first gear 20, causing the winding reel 18 to drive the winding rope 19 to tighten the guide slider 11 again. This, in turn, causes the first spring 13 and the second spring to be compressed again. The auxiliary impact mechanism 4 is controlled by the connecting control mechanism to perform auxiliary crushing. After crushing is completed, the electronic control components reset all components. The high degree of automation greatly improves the efficiency of coal mining. Furthermore, by improving automation and intelligence, the occurrence of accidents can be effectively reduced, and safety can be improved.

[0039] A coal mining tunneling method, implemented based on the aforementioned directional adjustable coal mining tunneling device, is characterized by comprising the following steps:

[0040] (1) When the coal mining tunneling device moves to the part to be mined in the mine, the moving rod of the electric impact rod 8 moves back and forth to drive the crushing head 9 to reciprocate to impact the ore body for tunneling and mining. In the initial state, the first gear 20 and the second gear 21 are in meshing state. The winding rope 19 provides tension to the limiting block 15, so that the first spring 13 and the second spring are in a compressed state, and the first gear 20 is locked, so that the second gear 21 cannot rotate, thereby ensuring that the first spring 13 and the second spring are always in a compressed state.

[0041] (2) When encountering a hard ore body that the crushing mechanism 3 cannot crush by impact, the coal mining tunneling device moves forward continuously, causing the ore body to exert backward pressure on the electric impact rod 8. Under the pressure, the electric impact rod 8 moves backward. Due to the pneumatic damping connection between the electric impact rod 8 and the sealing air plate 17 and between the sealing air plate 17 and the telescopic slide rod 16, the telescopic slide rod 16 moves backward, thereby pushing the limit block 15 to move backward, causing the first gear 20 and the second gear 21 to lose their fit.

[0042] (3) When the first gear 20 and the second gear 21 lose their engagement, the second gear 21 is unlocked. At this time, the first spring 13 and the second spring push the guide slider 11 forward, which in turn pushes the impact plate 12 to impact the ore body for auxiliary crushing.

[0043] (4) After the limit block 15 moves backward a certain distance, the control receiving system 24 contacts the control transmission system 23. The control receiving system 24 receives the start command and controls the drive source to provide driving force to the rotating shaft 32, so that the first gear 20 starts to rotate. When the ore body is broken, the pressure received by the electric impact rod 8 disappears, and the electric impact rod 8, the telescopic slide rod 16, and the limit block 15 are all reset. The first gear 20 and the second gear 21 mesh again. The second gear 21 rotates under the drive of the first gear 20, so that the winding reel 18 drives the winding rope 19 to tighten the guide slider 11 again, thereby pressing the first spring 13 and the second spring again.

[0044] (5) After the first spring 13 and the second spring are pressed, the first gear 20 stops rotating and is locked until the next time it encounters a hard ore body that the crushing mechanism 3 cannot crush by impact. Then, the above steps (2) to (4) are repeated until the coal mining and tunneling work is completed.

[0045] In summary, this application features a scientifically designed and structurally sound system capable of effectively handling hard ore bodies, maintaining stable operation even under compressive stress, and preventing mechanical damage or jamming caused by hard ore bodies. Furthermore, this application reduces the need for manual intervention by increasing automation and intelligence. Simultaneously, it enhances the continuous operation capability of the device, reducing downtime due to equipment failure or adjustments. Moreover, by minimizing damage to the surrounding environment of the ore body and employing an automatic adjustment mechanism, it reduces the risk of safety accidents and improves overall operational reliability. It effectively solves the technical problem of low crushing efficiency in traditional crushing mechanisms when handling hard ore bodies, reducing energy consumption.

[0046] The above embodiments are only used to illustrate and not limit the technical solutions of the present invention. Although the present invention has been described in detail with reference to the above embodiments, those skilled in the art should understand that modifications or equivalent substitutions can still be made to the present invention without departing from the spirit and scope of the present invention. Any modifications or partial substitutions should be covered within the scope of the claims of the present invention.

Claims

1. A directional adjustable coal mining tunneling device, characterized in that: The tunneling body consists of a main tunneling unit, a front body, a crushing mechanism, an auxiliary impact assembly, and a connection control mechanism. The front body is installed at the front end of the tunneling body, and the crushing mechanism, auxiliary impact assembly, and connection control mechanism are all installed on the front body. The front unit includes an upper plate, a lower plate, and a rear plate. The upper and lower plates are horizontally arranged, while the rear plate is vertically arranged. The upper end of the rear plate is connected to the rear end of the upper plate, and the lower end of the rear plate is connected to the rear end of the lower plate. The crushing mechanism includes a mounting platform, which includes a horizontal mounting plate and a vertical mounting plate. The top of the vertical mounting plate is connected to the rear end of the horizontal mounting plate. The vertical mounting plate is set on the front side of the rear machine plate, and the horizontal mounting plate is set on the lower surface of the upper machine plate. A sleeve rod is installed on the lower surface of the horizontal mounting plate. A through hole in the front-back direction is provided inside the sleeve rod. A sealing air plate is installed in the through hole. An electric impact rod is installed in the through hole. The electric impact rod is located in front of the sealing air plate, so that the electric impact rod and the sealing air plate form a pneumatic damping connection inside the sleeve rod. A crushing head is provided on the movable rod at the front end of the electric impact rod. The movable rod of the electric impact rod reciprocates in the horizontal direction to control the crushing head to crush the ore body. The auxiliary impact mechanism includes a fixed platform arranged horizontally at the front and rear. The fixed platform is set on the upper surface of the lower plate. A guide slider is slidably arranged inside the fixed platform. The rear end of the guide slider is connected to the inner wall of the rear side plate of the fixed platform through a first spring and a second spring. The first spring and the second spring are arranged parallel to each other from left to right. The front end of the guide slider passes through the front side plate of the fixed platform. An impact plate is provided at the front end of the guide slider. The connection control mechanism includes a horizontally positioned limiting block. A downward-opening groove is provided on the lower surface of the horizontal mounting plate. The top of the limiting block is slidably positioned in the groove. The front end of the limiting block is connected to the rear end of the telescopic slide rod. The front end of the telescopic slide rod is inserted into the through hole of the sleeve rod, so that the telescopic slide rod and the sealing air plate form a pneumatic damping connection inside the sleeve rod. An electrical control component is provided on the limiting block. The bottom end of the electrical control component is connected to a rotating shaft. A first gear is sleeved on the rotating shaft. A take-up reel is provided on the lower plate. A second gear is provided at the top end of the rotating shaft of the take-up reel. The first gear and the second gear mesh. A take-up rope is provided on the take-up reel. The front end of the take-up rope is connected to a guide slider.

2. The directional adjustable coal mining tunneling device according to claim 1, characterized in that: The electronic control assembly includes a control receiving system and a drive source. A control transmission system corresponding to the control receiving system is provided on the vertical mounting plate. When the control receiving system comes into contact with the control transmission system, the control receiving system controls the drive source to provide driving force to the rotating shaft, thereby driving the first gear to rotate.

3. The directional adjustable coal mining tunneling device according to claim 2, characterized in that: The impact plate is an arc-shaped plate, and several breaking protrusions are provided on the front surface of the impact plate.

4. The directional adjustable coal mining tunneling device according to claim 3, characterized in that: A moving component is installed at the bottom of the tunneling body, and a built-in power supply is installed inside the tunneling body to provide power to the moving component.

5. The directional adjustable coal mining tunneling device according to claim 4, characterized in that: The damping coefficient between the telescopic slide rod and the sealing air plate is greater than the damping coefficient between the electric impact rod and the sealing air plate.

6. The directional adjustable coal mining tunneling device according to claim 5, characterized in that: The first gear and the second gear are fitted with protective sleeves, and the rear end of the protective sleeves is connected to the front surface of the rear plate.

7. The directional adjustable coal mining tunneling device according to claim 6, characterized in that: Several release holes are provided on the lower plate.

8. The directional adjustable coal mining tunneling device according to claim 7, characterized in that: The tooth lengths of both the first and second gears are equal to the distance between the control transmission system and the control receiving system.

9. A coal mining tunneling method, implemented based on a directional adjustable coal mining tunneling device as described in any one of claims 1 to 8, characterized in that: The steps include: (1) When the coal mining tunneling device moves to the mining section inside the mine, the moving rod of the electric impact rod moves back and forth to drive the crushing head to repeatedly impact the ore body for tunneling and mining. In the initial state, the first gear and the second gear are in meshing state. The winding rope provides tension to the limit block, so that the first spring and the second spring are in a compressed state, and the first gear is locked, so that the second gear cannot rotate, thereby ensuring that the first spring and the second spring are always in a compressed state. (2) When encountering a hard ore body that the crushing mechanism cannot crush by impact, the coal mining tunneling device moves forward continuously, causing the ore body to exert backward pressure on the electric impact rod. Under the action of pressure, the electric impact rod moves backward. Due to the pneumatic damping connection between the electric impact rod and the sealing air plate and between the sealing air plate and the telescopic slide rod, the telescopic slide rod moves backward, which in turn pushes the limit block to move backward, causing the first gear and the second gear to lose their fit. (3) When the first gear and the second gear lose their engagement, the second gear is unlocked. At this time, the first spring and the second spring push the guide slider forward, thereby pushing the impact plate to impact the ore body for auxiliary crushing. (4) After the limit block moves backward a certain distance, the control receiving system contacts the control transmission system. The control receiving system receives the start command and controls the drive source to provide driving force to the rotating shaft, so that the first gear starts to rotate. When the ore body is broken, the pressure received by the electric impact rod disappears, and the electric impact rod, telescopic slide rod and limit block are all reset. The first gear and the second gear mesh again. The second gear rotates under the drive of the first gear, so that the winding reel drives the winding rope to tighten the guide slider again, and then the first spring and the second spring are pressed again. (5) After the first spring and the second spring are compressed, the first gear stops rotating and locks. The above steps (2) to (4) are repeated until the coal mining and tunneling work is completed.

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