Mine roadway unstable rock mass shooting-down equipment and shooting-down method

Abstract

The invention discloses a mine roadway unstable rock mass knock-down device and knock-down method.The mine roadway unstable rock mass knock-down device comprises a vehicle body, a hydraulic rotating disc, a first rotating frame, a fixed frame, a second rotating frame, a breaking hammer, a first oil cylinder, a second oil cylinder and the like, the hydraulic rotating disc is installed on the vehicle body, the first rotating frame is rotationally connected to the hydraulic rotating disc, and the fixed frame is arranged on the front side of the first rotating frame; the second rotating frame is rotationally connected to the fixed frame, the breaking hammer is installed on the second rotating frame, the first oil cylinder is rotationally connected to the hydraulic rotating disc, a telescopic rod of the first oil cylinder is rotationally connected with the first rotating frame, the second oil cylinder is rotationally connected into the fixed frame, and a telescopic rod of the second oil cylinder is rotationally connected with the second rotating frame. By adopting the design that the first oil cylinder, the second oil cylinder, the first oil pipe and the second oil pipe are hidden in the first rotating frame, the fixed frame and the second rotating frame, the risk that key assemblies are directly exposed outside and are impacted by falling rocks can be effectively avoided.

Description

Technical Field

[0001] The invention relates to the technical field of mining, and in particular to a device and a method for knocking down unstable rock masses in a mine tunnel. Background Art

[0002] In the mining process, ensuring the safety and maintenance of the tunnels is the key to achieving efficient operations. Especially when dealing with unstable rock masses, how to safely and effectively remove loose or overhanging fallen rocks has become a major challenge. At present, such tasks are mainly completed by prying trolleys. These devices use mechanical arms equipped with tools such as hydraulic breakers to clean unstable rock masses.

[0003] However, existing skidding trolleys have significant design flaws. Key components such as oil cylinders and oil pipes are usually directly exposed to the outside without adequate protection. This design makes these components extremely vulnerable to impact from falling rocks. Once damaged, it may not only cause oil circuit failures and affect the normal operation of the equipment, but may also cause hydraulic oil leakage and increase the risk of fire. In addition, when facing large-volume falling rocks, the strong impact of the falling rocks may cause the entire skidding trolley to lose stability, leading to dumping or rollover accidents. Such accidents will not only cause significant damage to the equipment, but also threaten the life safety of the operators. At the same time, since the rescue work after the rollover is complicated and time-consuming, it will prolong the mine downtime and bring huge economic losses to the company. Summary of the invention

[0004] In view of the deficiencies in the above-mentioned prior art, the present invention provides an unstable rock knocking-down device and method in a mine tunnel, which can overcome the shortcomings that the oil cylinders and oil pipes on the existing prying trolleys are usually directly exposed to the outside, easily damaged and affect the normal operation of the equipment, and easily rollover accidents occur when facing large-volume falling rocks, thus causing huge economic losses.

[0005] In order to solve the above technical problems, the present invention adopts the following technical solutions:

[0006] A device for knocking down unstable rock masses in a mine tunnel comprises a vehicle body, a hydraulic turntable, a first rotating frame, a fixed frame, a second rotating frame, a breaker hammer, a first oil cylinder, a second oil cylinder, a first oil pipe, a second oil pipe, a quick-release joint and a connecting mechanism; the hydraulic turntable is mounted on the vehicle body, the first rotating frame is rotatably connected to the hydraulic turntable, the fixed frame is arranged at the front side of the first rotating frame, the second rotating frame is rotatably connected to the front side of the fixed frame, the breaker hammer is mounted at the front side of the second rotating frame, the first oil cylinder is rotatably connected to the hydraulic turntable, and the telescopic rod of the first oil cylinder is rotatably connected to the first rotating frame, the second oil cylinder is rotatably connected in the fixed frame, and the telescopic rod of the second oil cylinder is The second rotating frame is rotatably connected, and multiple first oil pipes are installed on the hydraulic turntable at intervals, and second oil pipes equal to the number of the first oil pipes are installed in the fixed frame. The quick-release joint consists of a female head and a male head. The first oil pipe passes through the first rotating frame, and the front end of each first oil pipe is connected to a female head, and the rear end of each second oil pipe is connected to a male head. A part of the multiple second oil pipes passes through the fixed frame and extends into the second rotating frame. The front end of this part of the second oil pipe is connected to the oil cylinder of the breaker, and the front end of another part of the multiple second oil pipes is connected to the second oil cylinder. The female head and the male head are plugged in and connected one by one, and the connecting mechanism is used to fix the fixed frame on the front side of the first rotating frame.

[0007] As a preferred scheme of the present invention, the connecting mechanism includes a first mounting plate, a second mounting plate, a first electric push rod, a first connecting plate, a second electric push rod, a second connecting plate and a locking assembly; the first mounting plate is fixedly connected to the front side of the first rotating frame, and the female head passes through the first mounting plate and slidably cooperates with the first mounting plate, the second mounting plate is fixedly connected to the rear side of the fixed frame, the second mounting plate and the first mounting plate are in contact with each other, and each male head slides through the second mounting plate, two first electric push rods are symmetrically installed on the first mounting plate, the telescopic rod of the first electric push rod extends to the front side, a first connecting plate is connected between the telescopic rods of the two first electric push rods, and the steel sleeve on the female head is fixedly connected to the first connecting plate, two second electric push rods are symmetrically installed on the second mounting plate, the telescopic rod of the second electric push rod extends to the rear side, a second connecting plate is connected between the telescopic rods of the two second electric push rods, and the male head is fixedly connected to the second connecting plate, and the locking assembly is used to lock the second mounting plate.

[0008] As a preferred solution of the present invention, the locking assembly includes a rotating rod, a pressure sensor, an L-shaped card rod and an electromagnetic lock; two rotating rods are symmetrically rotatably connected to the left and right sides of the first mounting plate, and pressure sensors are installed on the upper rear sides of the two rotating rods; two L-shaped card rods are symmetrically connected to the left and right sides of the second mounting plate, and the L-shaped card rods on the left and right sides correspond to the pressure sensors on the left and right sides one by one, one section of the L-shaped card rod is a horizontal section, and the other section of the L-shaped card rod is a vertical section, the horizontal section of the L-shaped card rod is fixed on the second mounting plate, the vertical section of the L-shaped card rod is vertically downward and located on the rear side of the corresponding pressure sensor, and the vertical section of the L-shaped card rod is in contact with the corresponding pressure sensor, and electromagnetic locks are installed in the middle of the left and right sides of the first mounting plate, and the lock tongue of the electromagnetic lock extends to the rear bottom of the rotating rod, and the electromagnetic lock is used to lock the rotating rod.

[0009] As a preferred embodiment of the present invention, the equipment for shooting down unstable rock masses in mine tunnels also includes a support block, a connecting shaft, a roller and a protrusion. Two support blocks are symmetrically connected to the bottom of the first mounting plate near the left and right sides. The roller is rotatably connected between the two support blocks. The upper front parts of the two support blocks are provided with placement grooves. The connecting shaft is connected to the bottom of the second mounting plate, and the two ends of the connecting shaft are placed in the placement grooves of the two support blocks. The protrusion is connected to the middle part of the bottom of the connecting shaft, and the protrusion can contact the roller as the connecting shaft rotates.

[0010] As a preferred embodiment of the present invention, the unstable rock mass shooting-down device in the mine tunnel also includes a buffer assembly, which includes a guide block, a first protective plate, a second protective plate, a third protective plate, a buffer spring, an elastic plate, a fourth protective plate, a rubber pad and a steel plate. The left and right sides of the first rotating frame, the fixed frame and the second rotating frame are symmetrically connected with a plurality of guide blocks near the upper part, respectively. The first protective plate is slidably connected above the guide blocks on both sides of the first rotating frame. The first protective plate is located directly above the first rotating frame. The second protective plate is slidably connected above the guide blocks on both sides of the fixed frame. The second protective plate is located directly above the fixed frame. A third protective plate is slidably connected above the guide blocks on both sides of the moving frame, the third protective plate is located directly above the second rotating frame, and buffer springs are connected between the first protective plate, the second protective plate and the third protective plate and the guide blocks thereunder respectively, the elastic plate is connected to the top of the third protective plate, the fourth protective plate is connected to the rear side of the elastic plate, and the rear side of the fourth protective plate is located above the second protective plate, the left and right tops of the first rotating frame, the fixed frame and the second rotating frame are symmetrically connected with rubber pads, the top of each rubber pad is connected to a steel plate, and the first protective plate, the second protective plate and the third protective plate can all contact and cooperate with the corresponding steel plates thereunder when moving downward.

[0011] As a preferred embodiment of the present invention, the equipment for shooting down unstable rock in mine tunnels also includes a fixed plate, a third electric push rod, a mounting frame, a conveyor and a push plate; the lower front part of the vehicle body is connected to a fixed plate, and the top of the fixed plate is symmetrically installed with a third electric push rod near the left and right sides, and the telescopic rod of the third electric push rod is vertically upward, and two mounting frames are symmetrically arranged on the front side of the fixed plate near the left and right sides, and the two mounting frames correspond to the two third electric push rods one by one, and the top of the mounting frame is connected to the telescopic rod of the corresponding third electric push rod, and the telescopic rod of the third electric push rod can drive the corresponding mounting frame to move up and down, and conveyors are installed at the bottom of the two mounting frames, and multiple push plates are circumferentially connected to the conveyor belts at the bottom of the two conveyors.

[0012] As a preferred solution of the present invention, the equipment for shooting down unstable rock in mine tunnels also includes a mounting rod, a lighting lamp and a camera. The mounting rod is connected to the inner wall of the second rotating frame and is close to the upper front end of the second rotating frame. Two lighting lamps are symmetrically installed on the mounting rod. The camera is installed on the mounting rod and is located between the two lighting lamps.

[0013] A method for knocking down unstable rock masses in a mine tunnel, the method adopts the above-mentioned equipment for knocking down unstable rock masses in a mine tunnel, and the method comprises the following specific steps: controlling a vehicle body to move to a specified position, and then driving a first rotating frame to rotate horizontally through a hydraulic turntable, so as to drive a fixed frame, a second rotating frame and a breaker to rotate horizontally, and at the same time, the first rotating frame can be controlled to swing up and down through a first oil cylinder, so as to drive the fixed frame, the second rotating frame and the breaker to swing up and down, and then the second rotating frame can be driven to swing up and down in two stages through a second oil cylinder, and the breaker can be driven to swing up and down in two stages, so that the direction and angle of the breaker can be accurately controlled, so that the breaker can be aimed at the unstable rock mass to be knocked down, and then the breaker is controlled The hammer can break the unstable rock mass and knock down the unstable rock mass; when the fixed frame and the second rotating frame are hit by a large volume of falling rocks, the impact force detected by the pressure sensor will be greater than the preset value. At this time, the pressure sensor can send a signal. After receiving the signal, the controller will control the first electric push rod to drive the first connecting plate to move backward. The first connecting plate can drive the steel sleeve of the female head to move backward to release the lock on the male head. At the same time, the controller will control the second electric push rod to drive the second connecting plate to move forward to drive the male head to move forward and separate from the female head. At the same time, the controller will control the lock tongue of the electromagnetic lock to retract downward to release the lock on the rotating rod. At this time, the fixed frame and the second rotating frame will fall to the ground due to gravity.

[0014] Compared with the prior art, the present invention has the following technical effects:

[0015] 1. The present invention adopts a design in which the first oil cylinder, the second oil cylinder, the first oil pipe and the second oil pipe are hidden inside the first rotating frame, the fixed frame and the second rotating frame, which can effectively avoid the risk of these key components being directly exposed to the outside and being hit by falling rocks. When encountering large-volume falling rocks, the locking component can monitor and respond to the impact force borne by the fixed frame and the second rotating frame in real time. Once it is detected that the abnormal impact force exceeds the preset value, the system will automatically release the connection between the male head and the female head, and allow the fixed frame and the second rotating frame to be safely disengaged, preventing the entire device from tipping over or overturning, thereby greatly improving the safety and stability of the operation.

[0016] 2. The present invention utilizes the buffer component so that when rocks fall onto the first protective plate, the second protective plate or the third protective plate, these protective plates can absorb the impact energy under the action of the buffer springs, and further reduce the direct impact on the first rotating frame, the fixed frame and the second rotating frame through the rubber pads, thereby effectively protecting the core components from damage and extending the overall service life of the equipment.

[0017] 3. The present invention enables the operator to precisely control the position and angle of the breaker through the controller through the precise coordination among the hydraulic turntable, the first rotating frame, the fixed frame, the second rotating frame and the breaker, so as to accurately hit the unstable rock mass. In addition, the lighting and camera on the mounting rod can provide convenience for operations at night or under low light conditions, ensuring that the operator can clearly observe the conditions in the working area, thereby improving the efficiency and accuracy of the knocking down operation. At the same time, the design of the conveyor and the push plate helps to quickly clean up the gravel at the work site, ensure the smooth flow of the tunnel, and further improve the overall work efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 A schematic diagram of the three-dimensional structure of a device for knocking down unstable rock mass in a mine tunnel;

[0019] Figure 2 A schematic diagram of the structure for installing the first oil cylinder, the second oil cylinder, the first oil pipe and the second oil pipe;

[0020] Figure 3 A schematic diagram of the structure of the installation of the first mounting plate and the second mounting plate;

[0021] Figure 4 A schematic diagram of the structure for the installation of the connecting mechanism;

[0022] Figure 5 A schematic diagram of the structure for installing the locking assembly;

[0023] Figure 6 It is a schematic diagram of the structure in which the support block and the connecting shaft are separated;

[0024] Figure 7 A schematic diagram of the structure for installing the buffer assembly;

[0025] Figure 8 A schematic diagram of the structure for installing the third electric push rod, mounting frame, conveyor and push plate;

[0026] Fig. 9 Schematic diagram of the structure for mounting poles, lighting and camera installation.

[0027] In the figure: 1-car body; 2-hydraulic turntable; 3-first rotating frame; 4-fixed frame; 5-second rotating frame; 6-breaking hammer; 7-first oil cylinder; 8-second oil cylinder; 9-first oil pipe; 10-second oil pipe; 11-female head; 1101-steel sleeve; 12-male head; 13-first mounting plate; 14-second mounting plate; 15-first electric push rod; 16-first connecting plate; 17-second electric push rod; 18-second connecting plate; 19-rotating rod; 20-pressure sensor; 21 -L-shaped card rod; 22-electromagnetic lock; 23-support block; 24-connecting shaft; 25-roller; 26-bump; 27-guide block; 28-first protective plate; 29-second protective plate; 30-third protective plate; 31-buffer spring; 32-elastic plate; 33-fourth protective plate; 34-rubber pad; 35-steel plate; 36-fixing plate; 37-third electric push rod; 38-mounting frame; 39-conveyor; 40-push plate; 41-mounting rod; 42-lighting lamp; 43-camera. DETAILED DESCRIPTION

[0028] The present invention is further described in detail below in conjunction with the accompanying drawings and specific embodiments.

[0029] like Figure 1 and Figure 2As shown, a device for knocking down unstable rock mass in a mine tunnel includes a vehicle body 1, a hydraulic rotary table 2, a first rotating frame 3, a fixed frame 4, a second rotating frame 5, a breaker 6, a first oil cylinder 7, a second oil cylinder 8, a first oil pipe 9, a second oil pipe 10, a quick-release joint and a connecting mechanism. The vehicle body 1 is remotely equipped with a controller, which can control the vehicle body 1 to move and control the electrical components on the knocking down device to operate according to a set program. The hydraulic rotary table 2 is installed on the top of the vehicle body 1 and close to the front side. The first rotating frame 3 is rotatably connected to the upper front side of the hydraulic rotary table 2. The fixed frame 4 is set at the front side of the first rotating frame 3. The second rotating frame 5 is rotatably connected to the upper front side of the fixed frame 4. The breaker 6 is installed on the upper front side of the second rotating frame 5. In this embodiment, the front side is the side pointing to the front end of the breaker 6. The first oil cylinder 7 is rotatably connected to the front lower part of the hydraulic turntable 2. The first oil cylinder 7 can be connected to an external oil pump (not shown) through an oil pipe, and the telescopic rod of the first oil cylinder 7 is rotatably connected to the lower front side of the first rotating frame 3, so that the first oil cylinder 7 can drive the first rotating frame 3 to swing up and down. The second oil cylinder 8 is rotatably connected to the inner lower side of the fixed frame 4, and the telescopic rod of the second oil cylinder 8 is rotatably connected to the lower rear side of the second rotating frame 5, so that the second oil cylinder 8 can drive the second rotating frame 5 to swing up and down. A plurality of first oil pipes 9 are also installed at intervals on the hydraulic turntable 2, and the rear end of the first oil pipe 9 is used for an external oil pump. The fixed frame 4 is installed with second oil pipes 10 equal to the number of the first oil pipes 9. The quick-release joint is composed of a female head 11 and a male head 12. The first oil pipe 9 passes through the first rotating frame 3, and the front end of each first oil pipe 9 is connected to a female head 11, and the rear end of each second oil pipe 10 is connected to a male head 12. A part of the plurality of second oil pipes 10 passes through the fixed frame 4 and extends into the second rotating frame 5. The front end of this part of the second oil pipe 10 is connected to the oil cylinder of the breaker 6, and the front end of another part of the plurality of second oil pipes 10 is connected to the second oil cylinder 8. The female head 11 and the male head 12 are plugged in and connected one by one, so that the second oil pipe 10 can be connected to the first oil pipe 9 through the quick-release joint. The connecting mechanism is used to fix the fixed frame 4 on the front side of the first rotating frame 3.

[0030] The connecting mechanism includes a first mounting plate 13, a second mounting plate 14, a first electric push rod 15, a first connecting plate 16, a second electric push rod 17, a second connecting plate 18 and a locking assembly. Figure 3 and Figure 4As shown. The first mounting plate 13 is fixedly connected to the front side of the first rotating frame 3, and each female head 11 passes through the first mounting plate 13 and slides with the first mounting plate 13. The second mounting plate 14 is fixedly connected to the rear side of the fixed frame 4, the second mounting plate 14 and the first mounting plate 13 are in contact with each other, and each male head 12 slides through the second mounting plate 14. Two first electric push rods 15 are symmetrically installed on the rear side of the first mounting plate 13, and the telescopic rods of the first electric push rods 15 slide through the front side of the first mounting plate 13. A first connecting plate 16 is connected between the telescopic rods of the two first electric push rods 15, and the steel sleeve 1101 on each female head 11 is fixedly connected to the first connecting plate 16. Two second electric push rods 17 are symmetrically installed on the front side of the second mounting plate 14, and a second connecting plate 18 is connected between the telescopic rods of the two second electric push rods 17, and each male head 12 is fixedly connected to the second connecting plate 18. The locking assembly is used to lock the second mounting plate 14.

[0031] The locking assembly includes a rotating rod 19, a pressure sensor 20, an L-shaped clamping rod 21 and an electromagnetic lock 22. Figure 5 As shown. The upper parts of the left and right sides of the first mounting plate 13 are both rotatably connected with a rotating rod 19, and the rotating rod 19 is rotatably connected to the first mounting plate 13 through a rotating shaft. The upper parts of the rear sides of the two rotating rods 19 are both installed with a pressure sensor 20. The upper parts of the left and right sides of the second mounting plate 14 are both connected with an L-shaped clamping rod 21, and the L-shaped clamping rods 21 on the left and right sides correspond to the pressure sensors 20 on the left and right sides one by one. One section of the L-shaped clamping rod 21 is a horizontal section, and the other section of the L-shaped clamping rod 21 is a vertical section. The horizontal section of the L-shaped clamping rod 21 is fixed to the second mounting plate 14, and the vertical section of the L-shaped clamping rod 21 is vertically downward and located at the rear side of the corresponding pressure sensor 20, and the vertical section of the L-shaped clamping rod 21 contacts the corresponding pressure sensor 20. The middle parts of the left and right sides of the first mounting plate 13 are both installed with an electromagnetic lock 22, and the lock tongue of the electromagnetic lock 22 extends to the rear bottom of the rotating rod 19, and the electromagnetic lock 22 is used to lock the rotating rod 19.

[0032] Initially, the female head 11 and the male head 12 are in a docking connection state; when it is necessary to shoot down the unstable rock mass in the tunnel, the vehicle body 1 is first controlled to move to the specified position, and then the first rotating frame 3 can be driven to rotate horizontally through the hydraulic turntable 2 to drive the fixed frame 4, the second rotating frame 5 and the breaker 6 to rotate horizontally. At the same time, the first rotating frame 3 can be controlled to swing up and down through the first oil cylinder 7 to drive the fixed frame 4, the second rotating frame 5 and the breaker 6 to swing up and down, and then the second rotating frame 5 is driven to swing up and down in two stages through the second oil cylinder 8, and the breaker 6 can be driven to swing up and down in two stages, so that the direction and angle of the breaker 6 can be accurately controlled, so that the breaker 6 can be aimed at the unstable rock mass that needs to be shot down; then the breaker 6 is controlled to crush the unstable rock mass, so that the unstable rock mass can be shot down. Since the first oil cylinder 7, the second oil cylinder 8, the first oil pipe 9 and the second oil pipe 10 are respectively hidden in the first rotating frame 3, the fixed frame 4 and the second rotating frame 5, they will not be hit by falling rocks, and the normal operation of the shooting down device can be guaranteed.When the fixed frame 4 and the second rotating frame 5 are hit by falling rocks, the fixed frame 4 and the second rotating frame 5 tend to fall down, so that the L-shaped clamping rod 21 will squeeze the pressure sensor 20, so that the pressure sensor 20 can monitor the impact force of the fixed frame 4 and the second rotating frame 5 in real time; when the fixed frame 4 and the second rotating frame 5 are hit by falling rocks of large volume, the impact force detected by the pressure sensor 20 will be greater than the preset value, and the pressure sensor 20 can send a signal at this time. After receiving the signal, the controller will control the first electric The push rod 15 drives the first connecting plate 16 to move backward, and the first connecting plate 16 can drive the steel sleeve 1101 of the female head 11 to move backward to release the lock on the male head 12. At the same time, the controller will control the second electric push rod 17 to drive the second connecting plate 18 to move forward to drive the male head 12 to move forward and disengage from the female head 11. At the same time, the controller will control the lock tongue of the electromagnetic lock 22 to retract downward to release the lock on the rotating rod 19. At this time, the fixed frame 4 and the second rotating frame 5 will fall to the ground due to gravity, and the fixed frame 4 will drive the L-shaped When the clamping rod 21 moves downward, the pressure sensor 20 is pressed and rotates together with the rotating rod 19, so that the pressure sensor 20 is separated from the L-shaped clamping rod 21, thereby not affecting the vehicle body 1, the hydraulic turntable 2, the first rotating frame 3 and the first mounting plate 13, and preventing the vehicle body 1 from tipping over, thereby reducing economic losses; when it is necessary to reinstall the fixed frame 4 and the second rotating frame 5, it is only necessary to align the second mounting plate 14 with the first mounting plate 13, and then control the second electric push rod 17 through the controller to drive the second connecting plate 18 to move. The male head 12 is moved backward and reinserted into the female head 11. At the same time, the first electric push rod 15 is controlled by the controller to drive the first connecting plate 16 to move forward and reset, so as to drive the steel sleeve 1101 of the female head 11 to move forward and reset, so that the female head 11 can lock the male head 12. Finally, the rotating rod 19 and the pressure sensor 20 are manually rotated in the opposite direction and reset, so that the pressure sensor 20 contacts the vertical section of the L-shaped clamping rod 21 again, and then the lock tongue of the electromagnetic lock 22 is controlled by the controller to pop out and lock the rotating rod 19.

[0033] like Figure 5 and Figure 6As shown, the unstable rock mass shooting-down device for mine tunnels also includes a support block 23, a connecting shaft 24, a roller 25 and a protrusion 26. Two support blocks 23 are symmetrically connected to the bottom of the first mounting plate 13, and a placement groove is provided on the upper front side of the two support blocks 23. The roller 25 is rotatably connected between the left and right support blocks 23. The connecting shaft 24 is connected to the bottom of the second mounting plate 14, and the two ends of the connecting shaft 24 are placed in the placement grooves of the two support blocks 23. The protrusion 26 is connected to the middle of the bottom of the connecting shaft 24, and the protrusion 26 can contact with the roller 25 as the connecting shaft 24 rotates; when the shooting-down device is shooting down the unstable rock mass, the support block 23 can support the fixed frame 4 and the second rotating frame 5 to improve the overall stability. When the fixed frame 4 and the second rotating frame 5 fall to the ground due to gravity, the fixed frame 4 and the second rotating frame 5 will first rotate downward with the axis of the connecting shaft 24 as the rotation center, driving the connecting shaft 24 and the protrusion 26 to rotate. When the protrusion 26 and the roller 2 5, the protrusion 26 will be pressed to move forward, so as to drive the connecting shaft 24 to move forward and disengage from the placement groove of the bracket block 23, so as not to affect the first mounting plate 13 and the bracket block 23, thereby preventing the vehicle body 1 from tipping over and reducing economic losses. When the fixed frame 4 and the second rotating frame 5 need to be reinstalled, the connecting shaft 24 can be placed on the placement groove of the bracket block 23 first, and the fixed frame 4 and the second rotating frame 5 can be supported by the bracket block 23. Then, the fixed frame 4 and the second rotating frame 5 are rotated upward with the axis of the connecting shaft 24 as the rotation center, so that the second mounting plate 14 can be easily aligned with the first mounting plate 13, saving time and effort.

[0034] like Figure 7As shown, the unstable rock mass shooting-down device for mine tunnels also includes a buffer assembly, which includes a guide block 27, a first protective plate 28, a second protective plate 29, a third protective plate 30, a buffer spring 31, an elastic plate 32, a fourth protective plate 33, a rubber pad 34 and a steel plate 35. A plurality of guide blocks 27 are symmetrically connected to the left and right sides of the first rotating frame 3, the fixed frame 4, and the second rotating frame 5 near the upper part, respectively. A first protective plate 28 is slidably connected above the guide blocks 27 on both sides of the first rotating frame 3, and the first protective plate 28 is located directly above the first rotating frame 3. A second protective plate 29 is slidably connected above the guide blocks 27 on both sides of the fixed frame 4, and the second protective plate 29 is located directly above the fixed frame 4. A third protective plate 30 is slidably connected above the guide blocks 27 on both sides of the second rotating frame 5, and the third protective plate 30 is located directly above the second rotating frame 5. The first protective plate 28, the second protective plate 29, and the third protective plate 30 are all in an inverted "V" shape, that is, the tops of the first protective plate 28, the second protective plate 29, and the third protective plate 30 are Both the left and right sides are inclined surfaces, and the first protective plate 28, the second protective plate 29 and the third protective plate 30 are respectively connected to the guide blocks 27 below them with buffer springs 31 (that is, the top end of the buffer spring 31 below the first protective plate 28 is connected to the first protective plate 28, and the bottom end of the buffer spring 31 below the first protective plate 28 is connected to the guide block 27 on the first rotating frame 3; the top end of the buffer spring 31 below the second protective plate 29 is connected to the second protective plate 29, and the bottom end of the buffer spring 31 below the second protective plate 29 is connected to the guide block 27 on the fixed frame 4; the top end of the buffer spring 31 below the third protective plate 30 is connected to the third protective plate 30, and the bottom end of the buffer spring 31 below the third protective plate 30 is connected to the guide block 27 on the second rotating frame 5). The elastic plate 32 is connected to the rear side of the top of the third protective plate 30, and the fourth protective plate 33 is connected to the rear side of the elastic plate 32, and the rear side of the fourth protective plate 33 is located above the second protective plate 29. An elastic dustproof cloth can be arranged between the rear bottom of the fourth protective plate 33 and the top of the second protective plate 29 to prevent falling rocks or dust from entering the fixed frame 4 and the second rotating frame 5. The tops of both sides of the first rotating frame 3, the fixed frame 4 and the second rotating frame 5 are symmetrically connected with rubber pads 34, and the tops of the rubber pads 34 are connected to steel plates 35, and the first protective plate 28, the second protective plate 29 and the third protective plate 30 can all contact and cooperate with the corresponding steel plates 35 below them when they move downward.

[0035] When the shooting-down device is shooting down an unstable rock mass, the falling rocks will fall on the top of the first protective plate 28, the second protective plate 29 and the third protective plate 30 respectively, thereby preventing the falling rocks from falling on the first rotating frame 3, the fixed frame 4 and the second rotating frame 5. Moreover, the first protective plate 28, the second protective plate 29 and the third protective plate 30 will move downward under pressure, and the buffer spring 31 will be compressed. Then the first protective plate 28, the second protective plate 29 and the third protective plate 30 will contact the steel plate 35 below them, and the rubber pad 34 will be deformed under pressure, thereby preventing the first rotating frame 3, the fixed frame 4 and the second rotating frame 5. The first protective plate 28, the second protective plate 29 and the third protective plate 30 directly collide with the first rotating frame 3, the fixed frame 4 and the second rotating frame 5, and then the falling rocks will slide along the top of the first protective plate 28, the second protective plate 29 and the third protective plate 30 to the ground, and the buffer spring 31 will return to its original state, driving the first protective plate 28, the second protective plate 29 and the third protective plate 30 to move upward and separate from the steel plate 35. The rubber pad 34 can return to its original state due to its own elasticity, thereby protecting the first rotating frame 3, the fixed frame 4 and the second rotating frame 5 and extending its service life.

[0036] like Figure 8 As shown, the unstable rock shooting device in the mine tunnel also includes a fixed plate 36, a third electric push rod 37, a mounting frame 38, a conveyor 39 and a push plate 40. The lower front part of the vehicle body 1 is connected to the fixed plate 36, and the third electric push rod 37 is symmetrically installed on the top of the fixed plate 36 near the left and right sides. The telescopic rod of the third electric push rod 37 is vertically upward, and two mounting frames 38 are symmetrically arranged on the front side of the fixed plate 36 near the left and right sides. The mounting frames 38 correspond to the third electric push rods 37 one by one, and the top of the mounting frames 38 is connected to the telescopic rod of the corresponding third electric push rod 37. The telescopic rod of the third electric push rod 37 can drive the corresponding mounting frame 38 to move up and down. A conveyor 39 is installed at the bottom of the mounting frame 38, and a plurality of push plates 40 are connected to the conveyor belts at the bottom of the two conveyors 39 at circumferential intervals, and the bottoms of the push plates 40 on both sides are located below the conveyors 39, thereby preventing the bottom of the conveyors 39 from contacting the ground and causing wear; when the vehicle body 1 moves in the lane, the controller can control the third electric push rod 37 to drive the mounting frame 38, the conveyor 39 and the push plate 40 to move downward until the bottom of the push plate 40 contacts the ground, and then the controller controls the conveyor 39 to drive the push plate 40 to rotate, and the push plate 40 can push the fallen rocks blocking the moving path of the vehicle body 1 to the left and right sides, ensuring that the vehicle body 1 can pass smoothly.

[0037] like Fig. 9As shown, the unstable rock shooting device for the mine tunnel also includes a mounting rod 41, a lighting lamp 42 and a camera 43. The mounting rod 41 is connected to the inner wall of the second rotating frame 5 and is close to the upper front end of the second rotating frame 5. Two lighting lamps 42 are installed on the mounting rod 41 symmetrically. The camera 43 is installed on the mounting rod 41, and the camera 43 is located between the two lighting lamps 42. When the breaker 6 is adjusting the position and angle, the lighting lamp 42 can be controlled by the controller to emit light, and the camera 43 can be controlled to shoot the picture of the front end of the breaker 6. The picture shot by the camera 43 can be transmitted to the controller and displayed through the display panel thereon, so that the worker can adjust the position and angle of the breaker 6 to align with the unstable rock that needs to be shot down.

[0038] A method for shooting down unstable rock masses in a mine tunnel, the method adopts the above-mentioned equipment for shooting down unstable rock masses in a mine tunnel, and the method comprises the following specific steps: controlling a vehicle body 1 to move to a specified position, and then driving a first rotating frame 3 to rotate horizontally through a hydraulic turntable 2, so as to drive a fixed frame 4, a second rotating frame 5 and a breaker 6 to rotate horizontally, and at the same time, the first rotating frame 3 can be controlled to swing up and down through a first oil cylinder 7, so as to drive the fixed frame 4, the second rotating frame 5 and the breaker 6 to swing up and down, and then the second rotating frame 5 can be driven to swing up and down in two stages through a second oil cylinder 8, and the breaker 6 can be driven to swing up and down in two stages, so that the orientation and angle of the breaker 6 can be accurately controlled, so that the breaker 6 can be aimed at the unstable rock mass that needs to be shot down, and then the breaker 6 can be controlled to strike the unstable rock mass. The unstable rock mass can be crushed by the pressure sensor 20; when the fixed frame 4 and the second rotating frame 5 are hit by a large volume of falling rocks, the impact force detected by the pressure sensor 20 will be greater than the preset value. At this time, the pressure sensor 20 can send a signal. After receiving the signal, the controller will control the first electric push rod 15 to drive the first connecting plate 16 to move backward. The first connecting plate 16 can drive the steel sleeve 1101 of the female head 11 to move backward to release the lock on the male head 12. At the same time, the controller will control the second electric push rod 17 to drive the second connecting plate 18 to move forward to drive the male head 12 to move forward and disengage from the female head 11. At the same time, the controller will control the lock tongue of the electromagnetic lock 22 to retract downward to release the lock on the rotating rod 19. At this time, the fixed frame 4 and the second rotating frame 5 will fall to the ground due to gravity.

[0039] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the present invention rather than to limit it. Although the present invention has been described in detail with reference to the preferred embodiments, those skilled in the art should understand that the technical solution of the present invention can be modified or replaced by equivalents without departing from the purpose and scope of the technical solution of the present invention, which should be included in the scope of the claims of the present invention.

Claims

1. A device for knocking down unstable rock mass in a mine tunnel, comprising a vehicle body (1) and a hydraulic turntable (2), wherein the hydraulic turntable (2) is mounted on the vehicle body (1), and characterized in that: The invention also comprises a first rotating frame (3), a fixed frame (4), a second rotating frame (5), a breaker hammer (6), a first oil cylinder (7), a second oil cylinder (8), a first oil pipe (9), a second oil pipe (10), a quick-release joint and a connecting mechanism; the first rotating frame (3) is rotatably connected to the hydraulic rotary table (2); the fixed frame (4) is arranged at the front side of the first rotating frame (3); the second rotating frame (5) is rotatably connected to the front side of the fixed frame (4); the breaker hammer (6) is installed at the front side of the second rotating frame (5); the first oil cylinder (7) is rotatably connected to the hydraulic rotary table (2); the telescopic rod of the first oil cylinder (7) is rotatably connected to the first rotating frame (3); the second oil cylinder (8) is rotatably connected in the fixed frame (4); the telescopic rod of the second oil cylinder (8) is rotatably connected to the second rotating frame (5); the hydraulic rotary table (2) is provided with a plurality of spacers. A plurality of first oil pipes (9) are installed, and the fixed frame (4) is provided with second oil pipes (10) equal in number to the first oil pipes (9). The quick-release joint is composed of a female head (11) and a male head (12). The first oil pipes (9) pass through the first rotating frame (3), and the front end of each first oil pipe (9) is connected to a female head (11), and the rear end of each second oil pipe (10) is connected to a male head (12). A portion of the plurality of second oil pipes (10) passes through the fixed frame (4) and extends into the second rotating frame (5), and the front end of this portion of the second oil pipes (10) is connected to the oil cylinder of the breaker (6), and the front end of another portion of the plurality of second oil pipes (10) is connected to the second oil cylinder (8). The female head (11) and the male head (12) are plugged in and connected in a one-to-one correspondence, and the connecting mechanism is used to fix the fixed frame (4) on the front side of the first rotating frame (3).

2. The device for knocking down unstable rock mass in a mine tunnel according to claim 1, characterized in that: The connecting mechanism comprises a first mounting plate (13), a second mounting plate (14), a first electric push rod (15), a first connecting plate (16), a second electric push rod (17), a second connecting plate (18) and a locking assembly; the first mounting plate (13) is fixedly connected to the front side of the first rotating frame (3), and the female head (11) passes through the first mounting plate (13) and slidably cooperates with the first mounting plate (13); the second mounting plate (14) is fixedly connected to the rear side of the fixed frame (4); the second mounting plate (14) and the first mounting plate (13) are in contact with each other, and each male head (12) slides through the second mounting plate (14); the left and right male heads (12) on the first mounting plate (13) are Two first electric push rods (15) are symmetrically installed, the telescopic rods of the first electric push rods (15) extend to the front side, a first connecting plate (16) is connected between the telescopic rods of the two first electric push rods (15), and the steel sleeve (1101) on the female head (11) is fixedly connected to the first connecting plate (16), two second electric push rods (17) are symmetrically installed on the second mounting plate (14), the telescopic rods of the second electric push rods (17) extend to the rear side, a second connecting plate (18) is connected between the telescopic rods of the two second electric push rods (17), and the male head (12) is fixedly connected to the second connecting plate (18), and the locking assembly is used to lock the second mounting plate (14).

3. The device for knocking down unstable rock mass in a mine tunnel according to claim 2, characterized in that: The locking assembly comprises a rotating rod (19), a pressure sensor (20), an L-shaped clamping rod (21) and an electromagnetic lock (22); the left and right sides of the first mounting plate (13) are symmetrically connected to two rotating rods (19), and the upper rear parts of the two rotating rods (19) are both installed with pressure sensors (20); the left and right sides of the second mounting plate (14) are symmetrically connected to two L-shaped clamping rods (21), and the L-shaped clamping rods (21) on the left and right sides correspond to the pressure sensors (20) on the left and right sides one by one, and a section of the L-shaped clamping rod (21) is a horizontal section. The other section of the L-shaped clamping rod (21) is a vertical section. The horizontal section of the L-shaped clamping rod (21) is fixed on the second mounting plate (14). The vertical section of the L-shaped clamping rod (21) is vertically downward and located at the rear side of the corresponding pressure sensor (20), and the vertical section of the L-shaped clamping rod (21) is in contact with the corresponding pressure sensor (20). Electromagnetic locks (22) are installed in the middle of the left and right sides of the first mounting plate (13). The lock tongue of the electromagnetic lock (22) extends to the rear bottom of the rotating rod (19). The electromagnetic lock (22) is used to lock the rotating rod (19).

4. The device for knocking down unstable rock mass in a mine tunnel according to claim 3 is characterized by: It also includes a supporting block (23), a connecting shaft (24), a roller (25) and a protrusion (26); two supporting blocks (23) are symmetrically connected to the bottom of the first mounting plate (13) near the left and right sides; the roller (25) is rotatably connected between the two supporting blocks (23); the upper front parts of the two supporting blocks (23) are each provided with a placement groove; the connecting shaft (24) is connected to the bottom of the second mounting plate (14), and the two ends of the connecting shaft (24) are placed in the placement grooves of the two supporting blocks (23); the protrusion (26) is connected to the middle part of the bottom of the connecting shaft (24), and the protrusion (26) can contact the roller (25) as the connecting shaft (24) rotates.

5. The device for knocking down unstable rock mass in a mine tunnel according to claim 4, characterized in that: The invention also includes a buffer component, which includes a guide block (27), a first protective plate (28), a second protective plate (29), a third protective plate (30), a buffer spring (31), an elastic plate (32), a fourth protective plate (33), a rubber pad (34) and a steel plate (35). The left and right sides of the first rotating frame (3), the fixed frame (4) and the second rotating frame (5) are symmetrically connected to a plurality of guide blocks (27) near the upper part. The guide blocks (27) on both sides of the first rotating frame (3) are slidably connected to the upper part with a first protective plate (28). The first protective plate (28) is located directly above the first rotating frame (3). The guide blocks (27) on both sides of the fixed frame (4) are slidably connected to the upper part with a second protective plate (29). The second protective plate (29) is located directly above the fixed frame (4). The guide blocks (27) on both sides of the second rotating frame (5) are slidably connected to the upper part with a second protective plate (29). A third protective plate (30) is connected, and the third protective plate (30) is located directly above the second rotating frame (5), and buffer springs (31) are connected between the first protective plate (28), the second protective plate (29) and the third protective plate (30) and the guide block (27) below them respectively, the elastic plate (32) is connected to the top of the third protective plate (30), the fourth protective plate (33) is connected to the rear side of the elastic plate (32), and the rear side of the fourth protective plate (33) is located above the second protective plate (29), and the tops of the left and right sides of the first rotating frame (3), the fixed frame (4) and the second rotating frame (5) are symmetrically connected with rubber pads (34), and the top of each rubber pad (34) is connected to a steel plate (35), and the first protective plate (28), the second protective plate (29) and the third protective plate (30) can all contact and cooperate with the corresponding steel plate (35) below them when moving downward.

6. The device for knocking down unstable rock mass in a mine tunnel according to claim 5, characterized in that: The vehicle body (1) further comprises a fixing plate (36), a third electric push rod (37), a mounting frame (38), a conveyor (39) and a push plate (40); the fixing plate (36) is connected to the lower front side of the vehicle body (1); the third electric push rod (37) is symmetrically mounted on the top of the fixing plate (36) near the left and right sides; the telescopic rod of the third electric push rod (37) is vertically upward; two mounting frames (38) are symmetrically arranged on the front side of the fixing plate (36) near the left and right sides; the two mounting frames (38) correspond to the two third electric push rods (37) one by one, and the top of the mounting frame (38) is connected to the telescopic rod of the corresponding third electric push rod (37); the telescopic rod of the third electric push rod (37) can drive the corresponding mounting frame (38) to move up and down; the bottom of the two mounting frames (38) are both mounted with conveyors (39); and a plurality of push plates (40) are circumferentially spaced and connected to the conveyor belts at the bottom of the two conveyors (39).

7. The device for knocking down unstable rock mass in a mine tunnel according to claim 6, characterized in that: It also includes a mounting rod (41), an illuminating lamp (42) and a camera (43); the mounting rod (41) is connected to the inner wall of the second rotating frame (5) and is close to the upper front end of the second rotating frame (5); two illuminating lamps (42) are symmetrically mounted on the mounting rod (41); and the camera (43) is mounted on the mounting rod (41) and is located between the two illuminating lamps (42).

8. A method for knocking down unstable rock mass in a mine tunnel, characterized in that: The method adopts a device for knocking down unstable rock masses in a mine tunnel as described in claim 7, and the method comprises the following specific steps: controlling the vehicle body (1) to move to a specified position, and then driving the first rotating frame (3) to rotate horizontally through the hydraulic turntable (2), so as to drive the fixed frame (4), the second rotating frame (5) and the breaker (6) to rotate horizontally, and at the same time, the first rotating frame (3) can be controlled to swing up and down through the first oil cylinder (7), so as to drive the fixed frame (4), the second rotating frame (5) and the breaker (6) to swing up and down, and then the second rotating frame (5) can be driven to swing up and down in two stages through the second oil cylinder (8), and the breaker (6) can be driven to swing up and down in two stages, so as to accurately control the orientation and angle of the breaker (6), so that the breaker (6) can be aimed at the unstable rock mass to be knocked down, and then the breaker (6) can be controlled to crush the unstable rock mass, and the like. knock down unstable rock masses; when the fixed frame (4) and the second rotating frame (5) are hit by a large volume of falling rocks, the impact force detected by the pressure sensor (20) will be greater than a preset value, and the pressure sensor (20) can send a signal. After receiving the signal, the controller will control the first electric push rod (15) to drive the first connecting plate (16) to move backward, and the first connecting plate (16) can drive the steel sleeve (1101) of the female head (11) to move backward to release the lock on the male head (12). At the same time, the controller will control the second electric push rod (17) to drive the second connecting plate (18) to move forward to drive the male head (12) to move forward and disengage from the female head (11). At the same time, the controller will control the lock tongue of the electromagnetic lock (22) to retract downward to release the lock on the rotating rod (19). At this time, the fixed frame (4) and the second rotating frame (5) will fall to the ground due to gravity.

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