Direction-adjustable coal mining tunneling device and method

Abstract

The invention discloses a direction-adjustable coal mining tunneling device and method.The coal mining tunneling device comprises a tunneling body, a front machine body, a crushing mechanism, an auxiliary impact assembly and a connection control mechanism, the front machine body is installed at the front end of the tunneling body, and the crushing mechanism, the auxiliary impact assembly and the connection control mechanism are all installed on the front machine body; the device can effectively deal with a hard ore body, so that the hard ore body can keep stable operation when encountering extrusion force, and the phenomenon of mechanical damage or clamping caused by the hard ore body is avoided. In addition, the requirement for manual intervention is reduced by improving the automation degree and the intelligence degree. And meanwhile, the continuous operation capability of the device is enhanced, and the downtime caused by equipment failure or adjustment is reduced. And by reducing damage to the surrounding environment of the ore body and automatically adjusting the mechanism, the risk of safety accidents is reduced, the overall operation reliability is improved, and the technical problem that when a traditional crushing mechanism treats the hard ore body, the crushing efficiency is low is solved.

Description

Technical Field

[0001] The invention belongs to the technical field of coal mining, and in particular relates to a coal mining excavation device and method with adjustable direction. Background Art

[0002] Coal mining requires a series of technical activities such as exploration, design, construction, production and management of coal resources. Therefore, it is necessary to use scientifically designed mining equipment and methods. In the field of coal mining, the low crushing efficiency of hard ore bodies has become a key factor restricting production efficiency. At the same time, the lack of adaptability of the mechanical structure makes the equipment prone to failure when processing ore bodies of different hardness, affecting the continuity and stability of the operation. In addition, the lack of automation and intelligence makes the mining process dependent on manual operation, which is not only inefficient, but also increases the labor intensity and potential safety risks of operators. The limited continuous operation capacity further exacerbates the fluctuation of production efficiency, and the safety and reliability issues of the equipment directly threaten the lives of miners. Therefore, there is a need for a coal mining excavation device and method with simple structure, convenient operation, high safety and high mining efficiency and adjustable direction. Summary of the invention

[0003] The object of the present invention is to provide a direction-adjustable coal mining excavation device and method with simple structure, convenient operation, high safety and high mining efficiency.

[0004] To achieve the above object, the present invention adopts the following technical solutions: A coal mining excavation device with adjustable direction, comprising an excavation body, a front body, a crushing mechanism, an auxiliary impact assembly and a connection control mechanism, wherein the front body is installed at the front end of the excavation body, and the crushing mechanism, the auxiliary impact mechanism and the connection control mechanism are all installed on the front body; The front machine body includes an upper machine plate, a lower machine plate and a rear machine plate. The upper machine plate and the lower machine plate are arranged horizontally, and the rear machine plate is arranged vertically. The upper end of the rear machine plate is connected to the rear end of the upper machine plate, and the lower end of the rear machine plate is connected to the rear end of the lower machine plate. The crushing mechanism includes a mounting platform, which includes a horizontal mounting plate and a vertical mounting plate. The top end of the vertical mounting plate is connected to the rear end of the horizontal mounting plate. The vertical mounting plate is arranged on the front side of the rear machine plate. The horizontal mounting plate is arranged 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-to-back direction is arranged inside the sleeve rod. A sealed gas disk is installed in the through hole. An electric impact rod is arranged in the through hole. The electric impact rod is located in front of the sealed gas disk, so that a gas pressure damping connection is formed between the electric impact rod and the sealed gas disk inside the sleeve rod. A crushing head is arranged 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 horizontally arranged front and back, the fixed platform is arranged on the upper surface of the lower machine 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, the front end of the guide slider passes through the front side plate of the fixed platform, and an impact plate is arranged at the front end of the guide slider; The connection control mechanism includes a horizontally arranged limit block, a downwardly opening slide groove is provided on the lower surface of the horizontal mounting plate, the top end of the limit block is slidably arranged in the slide groove, the front end of the limit 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 an air pressure damping connection is formed between the telescopic slide rod and the sealing gas disk inside the sleeve rod, an electric control component is arranged on the limit block, the bottom end of the electric control component is connected to the rotating shaft, the rotating shaft is sleeved with a first gear, a winding disk is arranged on the lower machine plate, a second gear is arranged on the top end of the rotating shaft of the winding disk, the first gear and the second gear are meshed, a winding rope is arranged on the winding disk, and the front end of the winding rope is connected to the guide slider.

[0005] The electronic control component includes a control receiving system and a driving source. A control transmission system corresponding to the control receiving system is arranged on the vertical mounting plate. When the control receiving system contacts the control transmission system, the control receiving system controls the driving source to provide driving force for the rotating shaft and thereby drives the first gear to rotate.

[0006] The impact plate is an arc-shaped plate, and a plurality of crushing protrusions are arranged on the front surface of the impact plate.

[0007] A moving component is arranged at the bottom of the excavation body, and a built-in power supply is installed inside the excavation body, and the built-in power supply provides power to the moving component.

[0008] The damping coefficient between the telescopic slide rod and the sealing gas disc is greater than the damping coefficient between the electric impact rod and the sealing gas disc.

[0009] The first gear and the second gear are covered with a protective sleeve, and the rear end of the protective sleeve is connected to the front surface of the rear plate.

[0010] A plurality of release holes are provided on the lower machine plate.

[0011] The tooth lengths of the first gear and the second gear are both equal to the distance between the control transmission system and the control receiving system.

[0012] A method for coal mining and excavation is implemented based on the above-mentioned direction-adjustable coal mining and excavation device, and is characterized in that it includes the following steps: (1) The coal mining excavation device moves to the part to be mined in the mine, and the movable rod of the electric impact rod reciprocates back and forth to drive the crushing head to reciprocate and impact the ore body for excavation and mining. In the initial state, the first gear and the second gear are in a meshing state, and the winding rope provides a pulling force 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 cannot be impact-crushed by the crushing mechanism, the ore body applies backward pressure to the electric impact rod due to the continuous forward movement of the coal mining excavation device. The electric impact rod moves backward under the pressure. Due to the air pressure damping connection between the electric impact rod and the sealing gas disk and between the sealing gas disk and the telescopic slide rod, the telescopic slide rod moves backward and pushes the limit block backward, causing the first gear and the second gear to lose the match; (3) When the first gear loses its fit with the second gear, the second gear is unlocked. At this time, the first spring and the second spring push the guide slider forward and then push the impact plate to impact the ore body for auxiliary crushing; (4) After the limit block moves backward for a certain distance, the control receiving system contacts the control transmission system, and the control receiving system receives the start command to control the driving 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, the telescopic slide rod, and the limit block are reset. The first gear and the second gear are meshed again. The second gear rotates under the drive of the first gear, so that the winding disk drives the winding rope to tighten the guide slider again, thereby compressing the first spring and the second spring again. (5) After the first spring and the second spring are compressed, the first gear stops rotating and is locked until the next time a hard ore body that cannot be impact-crushed by the crushing mechanism is encountered. Then, the above steps (2) to (4) are repeated until the coal mining and excavation work is completed.

[0013] The limit block of the connection control mechanism of the present application is provided with an electric control component, the bottom end of the electric control component is connected to the rotating shaft, the rotating shaft is sleeved with a first gear, a winding disk is provided on the lower machine plate, a second gear is provided on the top of the rotating shaft of the winding disk, the first gear and the second gear are meshed, a winding rope is provided on the winding disk, and the front end of the winding rope is connected to the guide slider. When the control receiving system contacts the control transmission system, the control receiving system receives the start instruction to control the driving source to provide driving force to the rotating shaft, so that the first gear starts to rotate, and when the ore body is crushed, the pressure received by the electric impact rod disappears, the electric impact rod, the telescopic slide bar, and the limit block are reset, the first gear and the second gear are meshed again, and the second gear rotates under the drive of the first gear, so that the winding disk drives the winding rope to tighten the guide slider again, and then the first spring and the second spring are compressed again, the connection control mechanism is used to control the auxiliary impact mechanism for auxiliary crushing, and the electric control component is used to reset each component after the crushing is completed. The degree of automation is high, which greatly improves the efficiency of coal mining, and the occurrence of accidents can be effectively reduced and safety can be improved by improving automation and intelligence.

[0014] In summary, the present application is scientifically designed and reasonably structured, and can effectively cope with hard ore bodies, so that it can maintain stable operation when encountering extrusion pressure, and avoid mechanical damage or jamming caused by hard ore bodies. In addition, the present application reduces the need for manual intervention by improving the degree of automation and intelligence. At the same time, the continuous operation capacity of the device is enhanced, and the downtime caused by equipment failure or adjustment is reduced. Furthermore, by reducing damage to the environment around the ore body and the automatic adjustment mechanism, the risk of safety accidents is reduced and the reliability of the overall operation is improved. It effectively solves the technical problem of low crushing efficiency of traditional crushing mechanisms when processing hard ore bodies and reduces energy consumption. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a structural schematic diagram of the direction-adjustable coal mining and tunneling device of the present invention.

[0016] Figure 2 It is a structural schematic diagram of the front body, crushing mechanism and auxiliary impact mechanism of the present invention from the first perspective.

[0017] Figure 3 This is the second structural schematic diagram of the front body, crushing mechanism and auxiliary impact mechanism of the present invention from the second perspective.

[0018] Figure 4 It is a structural schematic diagram of the connection control mechanism of the present invention.

[0019] Figure 5 yes Figure 4 Enlarged view of part A in the middle. DETAILED DESCRIPTION

[0020] The embodiments of the present invention are further described below with reference to the accompanying drawings.

[0021] Embodiment 1 like Figure 1-5 As shown, a coal mining excavation device with adjustable direction comprises an excavation body 1, a front body 2, a crushing mechanism 3, an auxiliary impact assembly and a connection control mechanism, wherein the front body 2 is installed at the front end of the excavation body 1, and the crushing mechanism 3, the auxiliary impact mechanism 4 and the connection control mechanism are all installed on the front body 2; The front body 2 includes an upper machine plate 27, a lower machine plate 28 and a rear machine plate 29. The upper machine plate 27 and the lower machine plate 28 are arranged horizontally, and the rear machine plate 29 is arranged vertically. The upper end of the rear machine plate 29 is connected to the rear end of the upper machine plate 27, and the lower end of the rear machine plate 29 is connected to the rear end of the lower machine plate 28. The crushing mechanism 3 includes a mounting platform 6, which includes a horizontal mounting plate 30 and a vertical mounting plate. The top end of the vertical mounting plate is connected to the rear end of the horizontal mounting plate 30. The vertical mounting plate is arranged on the front side of the rear machine plate 29. The horizontal mounting plate 30 is arranged 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-to-back direction is arranged inside the sleeve rod 7. A sealed gas disk 17 is installed in the through hole. An electric impact rod 8 is arranged in the through hole. The electric impact rod 8 is located in front of the sealed gas disk 17, so that a gas pressure damping connection is formed between the electric impact rod 8 and the sealed gas disk 17 inside the sleeve rod 7. A crushing head 9 is arranged 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. The auxiliary impact mechanism 4 includes a fixed platform 10 horizontally arranged front and back, the fixed platform 10 is arranged on the upper surface of the lower machine 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, the front end of the guide slider 11 passes through the front side plate of the fixed platform 10, and an impact plate 12 is arranged at the front end of the guide slider 11; The connection control mechanism includes a horizontally arranged limit block 15, a downwardly opening slide groove 14 is provided on the lower surface of the horizontal mounting plate 30, the top end of the limit block 15 is slidably arranged in the slide groove 14, the front end of the limit block 15 is connected to the rear end of the telescopic slide rod 16, and the front end of the telescopic slide rod 16 is inserted into the through hole of the sleeve rod 7, so that a gas pressure damping connection is formed between the telescopic slide rod 16 and the sealing gas disk 17 inside the sleeve rod 7, an electric control component is arranged on the limit block 15, the bottom end of the electric control component is connected to the rotating shaft 32, the rotating shaft 32 is sleeved with a first gear 20, a winding disk 18 is arranged on the lower machine plate 28, and a second gear 21 is arranged on the top end of the rotating shaft of the winding disk 18, the first gear 20 and the second gear 21 are meshed, and a winding rope 19 is arranged on the winding disk 18, and the front end of the winding rope 19 is connected to the guide slider 11.

[0022] The electronic control component includes a control receiving system 24 and a driving source, and the driving source can be selected from a power device such as a driving motor; a control transmission system 23 corresponding to the control receiving system 24 is arranged on the vertical mounting plate. When the control receiving system 24 contacts the control transmission system 23, the control receiving system 24 controls the driving source to provide driving force for the rotating shaft 32 and thereby drives the first gear 20 to rotate.

[0023] The impact plate 12 is an arc-shaped plate, and a plurality of crushing protrusions are arranged on the front surface of the impact plate 12, which is beneficial to the crushing of the ore body. A moving component is arranged at the bottom of the excavation body 1, and a built-in power supply is installed inside the excavation body 1, and the built-in power supply provides power for the moving component. The damping coefficient between the telescopic slide rod 16 and the sealing gas disk 17 is greater than the damping coefficient between the electric impact rod 8 and the sealing gas disk 17. The outer sleeve of the first gear 20 and the second gear 21 is provided with a protective sleeve 25, and the rear end of the protective sleeve is connected to the front surface of the rear machine plate 29. A plurality of release holes 26 are provided on the lower machine plate 28. The tooth length of the first gear 20 and the second gear 21 is equal to the distance between the control transmission system 23 and the control receiving system 24.

[0024] The limit block 15 of the connection control mechanism of the present application is provided with an electric control component, the bottom end of the electric control component is connected to the rotating shaft 32, the rotating shaft 32 is sleeved with a first gear 20, the lower machine plate 28 is provided with a winding disk 18, the top end of the rotating shaft of the winding disk 18 is provided with a second gear 21, the first gear 20 and the second gear 21 are meshed, the winding disk 18 is provided with a winding rope 19, the front end of the winding rope 19 is connected to the guide slider 11, when the control receiving system 24 contacts the control transmission system 23, the control receiving system 24 receives the start command to control the driving source to provide driving force to the rotating shaft 32, so that the first gear 20 starts to rotate, and when the ore body is broken, the electric The pressure received by the dynamic impact rod 8 disappears, the electric impact rod 8, the telescopic slide bar 16, and the limit block 15 are all reset, the first gear 20 and the second gear 21 are meshed again, and the second gear 21 rotates driven by the first gear 20, so that the winding disk 18 drives the winding rope 19 to tighten the guide slider 11 again, and then the first spring 13 and the second spring are compressed again, and the auxiliary impact mechanism 4 is controlled by the connection control mechanism to perform auxiliary crushing, and the electronic control component is used to reset each component after the crushing is completed. The high degree of automation greatly improves the efficiency of coal mining, and can effectively reduce the occurrence of accidents and improve safety by improving automation and intelligence.

[0025] Embodiment 2 A method for coal mining and excavation is implemented based on the above-mentioned direction-adjustable coal mining and excavation device, and is characterized in that it includes the following steps: (1) The coal mining excavation device moves to the part to be mined in the mine, and the movable rod of the electric impact rod 8 reciprocates back and forth to drive the crushing head 9 to reciprocate and impact the ore body for excavation and mining. In the initial state, the first gear 20 and the second gear 21 are in a meshing state, and the winding rope 19 provides a pulling force to the limit 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; (2) When encountering a hard ore body that cannot be impact-crushed by the crushing mechanism 3, the ore body applies backward pressure to the electric impact rod 8 due to the continuous forward movement of the coal mining excavation device. The electric impact rod 8 moves backward under the pressure. Due to the air pressure damping connection between the electric impact rod 8 and the sealing gas disk 17 and between the sealing gas disk 17 and the telescopic slide rod 16, the telescopic slide rod 16 moves backward and pushes the limit block 15 to move backward, causing the first gear 20 and the second gear 21 to lose the match; (3) When the first gear 20 loses its fit with the second gear 21, the second gear 21 is unlocked. At this time, the first spring 13 and the second spring push the guide slider 11 forward and then push the impact plate 12 to impact the ore body for auxiliary crushing; (4) After the limit block 15 moves backward for a certain distance, the control receiving system 24 contacts the control transmission system 23. The control receiving system 24 receives the start command to control the driving 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, the electric impact rod 8, the telescopic slide bar 16, and the limit block 15 are reset, the first gear 20 and the second gear 21 are meshed again, and the second gear 21 rotates under the drive of the first gear 20, so that the winding disk 18 drives the winding rope 19 to tighten the guide slider 11 again, thereby compressing the first spring 13 and the second spring again; (5) After the first spring 13 and the second spring are compressed, the first gear 20 stops rotating and is locked until the next time a hard ore body that cannot be impact-crushed by the crushing mechanism 3 is encountered, and the above steps (2) to (4) are repeated until the coal mining and excavation work is completed.

[0026] In summary, the present application is scientifically designed and reasonably structured, and can effectively cope with hard ore bodies, so that it can maintain stable operation when encountering extrusion pressure, and avoid mechanical damage or jamming caused by hard ore bodies. In addition, the present application reduces the need for manual intervention by improving the degree of automation and intelligence. At the same time, the continuous operation capacity of the device is enhanced, and the downtime caused by equipment failure or adjustment is reduced. Furthermore, by reducing damage to the environment around the ore body and the automatic adjustment mechanism, the risk of safety accidents is reduced and the reliability of the overall operation is improved. It effectively solves the technical problem of low crushing efficiency of the traditional crushing mechanism 3 when processing hard ore bodies, and reduces energy consumption.

[0027] The above embodiments are only used to illustrate rather than limit the technical solutions of the present invention. Although the present invention is described in detail with reference to the above embodiments, those skilled in the art should understand that the present invention can still be modified or replaced by equivalents. Any modification or partial replacement that does not depart from the spirit and scope of the present invention should be included in the scope of the claims of the present invention.

Claims

1. A direction-adjustable coal mining excavation device, characterized in that: The excavation body, the front body, the crushing mechanism, the auxiliary impact assembly and the connection control mechanism, the front body is installed at the front end of the excavation body, and the crushing mechanism, the auxiliary impact mechanism and the connection control mechanism are all installed on the front body; The front machine body includes an upper machine plate, a lower machine plate and a rear machine plate. The upper machine plate and the lower machine plate are arranged horizontally, and the rear machine plate is arranged vertically. The upper end of the rear machine plate is connected to the rear end of the upper machine plate, and the lower end of the rear machine plate is connected to the rear end of the lower machine plate. The crushing mechanism includes a mounting platform, which includes a horizontal mounting plate and a vertical mounting plate. The top end of the vertical mounting plate is connected to the rear end of the horizontal mounting plate. The vertical mounting plate is arranged on the front side of the rear machine plate. The horizontal mounting plate is arranged 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-to-back direction is arranged inside the sleeve rod. A sealed gas disk is installed in the through hole. An electric impact rod is arranged in the through hole. The electric impact rod is located in front of the sealed gas disk, so that a gas pressure damping connection is formed between the electric impact rod and the sealed gas disk inside the sleeve rod. A crushing head is arranged 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 horizontally arranged front and back, the fixed platform is arranged on the upper surface of the lower machine 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, the front end of the guide slider passes through the front side plate of the fixed platform, and an impact plate is arranged at the front end of the guide slider; The connection control mechanism includes a horizontally arranged limit block, a downwardly opening slide groove is provided on the lower surface of the horizontal mounting plate, the top end of the limit block is slidably arranged in the slide groove, the front end of the limit 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 an air pressure damping connection is formed between the telescopic slide rod and the sealing gas disk inside the sleeve rod, an electric control component is arranged on the limit block, the bottom end of the electric control component is connected to the rotating shaft, the rotating shaft is sleeved with a first gear, a winding disk is arranged on the lower machine plate, a second gear is arranged on the top end of the rotating shaft of the winding disk, the first gear and the second gear are meshed, a winding rope is arranged on the winding disk, and the front end of the winding rope is connected to the guide slider.

2. The direction-adjustable coal mining excavation device according to claim 1 is characterized in that: The electronic control component includes a control receiving system and a driving source. A control transmission system corresponding to the control receiving system is arranged on the vertical mounting plate. When the control receiving system contacts the control transmission system, the control receiving system controls the driving source to provide driving force for the rotating shaft and thereby drives the first gear to rotate.

3. The direction-adjustable coal mining excavation device according to claim 2 is characterized in that: The impact plate is an arc-shaped plate, and a plurality of crushing protrusions are arranged on the front surface of the impact plate.

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

5. The direction-adjustable coal mining excavation device according to claim 4 is characterized in that: The damping coefficient between the telescopic slide rod and the sealing gas disc is greater than the damping coefficient between the electric impact rod and the sealing gas disc.

6. The direction-adjustable coal mining excavation device according to claim 5, characterized in that: The first gear and the second gear are covered with a protective sleeve, and the rear end of the protective sleeve is connected to the front surface of the rear plate.

7. The direction-adjustable coal mining excavation device according to claim 6, characterized in that: A plurality of release holes are provided on the lower machine plate.

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

9. A method for coal mining and excavation, implemented based on the direction-adjustable coal mining and excavation device according to any one of claims 1 to 8, characterized in that: The steps include: (1) The coal mining excavation device moves to the part to be mined in the mine, and the movable rod of the electric impact rod reciprocates back and forth to drive the crushing head to reciprocate and impact the ore body for excavation and mining. In the initial state, the first gear and the second gear are in a meshing state, and the winding rope provides a pulling force 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 cannot be impact-crushed by the crushing mechanism, the ore body applies backward pressure to the electric impact rod due to the continuous forward movement of the coal mining excavation device. The electric impact rod moves backward under the pressure. Due to the air pressure damping connection between the electric impact rod and the sealing gas disk and between the sealing gas disk and the telescopic slide rod, the telescopic slide rod moves backward and pushes the limit block backward, causing the first gear and the second gear to lose the match; (3) When the first gear loses its fit with the second gear, the second gear is unlocked. At this time, the first spring and the second spring push the guide slider forward and then push the impact plate to impact the ore body for auxiliary crushing; (4) After the limit block moves backward for a certain distance, the control receiving system contacts the control transmission system, and the control receiving system receives the start command to control the driving 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, the telescopic slide rod, and the limit block are reset. The first gear and the second gear are meshed again. The second gear rotates under the drive of the first gear, so that the winding disk drives the winding rope to tighten the guide slider again, thereby compressing the first spring and the second spring again. (5) After the first spring and the second spring are compressed, the first gear stops rotating and is locked until the next time a hard ore body that cannot be impact-crushed by the crushing mechanism is encountered. Then, the above steps (2) to (4) are repeated until the coal mining and excavation work is completed.

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