A pneumatic tunneling system

Abstract

The invention discloses a pneumatic tunneling system, comprising a pneumatic rock drill, an operating console, a hydraulic system, a power system, a covering member, an air system, a water system, a vehicle frame, a transmission system, a drill arm, and a propulsion beam. The pneumatic rock drill is installed on the propulsion beam, the propulsion beam is connected to one end of the drill arm, and the other end of the drill arm is connected to the front end of the vehicle frame; an operating console is connected to the upper middle of the vehicle frame, covering members are arranged on the upper and side parts, a power system is arranged at the rear end, and a transmission system is arranged at the lower part; the hydraulic system is connected to the power system to provide power for the pneumatic tunneling drilling vehicle to travel and the drill arm to move; the transmission system is also connected to the power system to transmit the power of the power system to the traveling mechanism; the water system is connected to the pneumatic rock drill to provide a flushing water source for the pneumatic rock drill to drill and discharge slag; the air system is connected to the pneumatic rock drill to provide the pneumatic rock drill with working power during drilling and front and rear propulsion power, and the compressed air of the air system comes from the compressed air of the air duct in the tunnel.

Description

Technical Field

[0001] The invention relates to a pneumatic tunneling system and belongs to the technical field of engineering machinery. Background Art

[0002] The tunneling construction of tunnels and mines under hard rock and medium hard rock conditions mainly adopts the drilling and blasting method. There are two main types of drilling equipment for the drilling process: hydraulic equipment and pneumatic equipment. Hydraulic equipment mainly uses electric energy as its power source. In order to use hydraulic rock drilling equipment, transformer equipment and power distribution equipment need to be installed. The main components and accessories of hydraulic rock drilling equipment are expensive, and the cost of use is high. Most small tunnel and mine construction units cannot afford the cost. In addition, the control system of hydraulic rock drilling equipment is complex, and professional personnel are required to carry out maintenance work. The above factors have kept the utilization rate of hydraulic rock drilling equipment in China at a low level for a long time.

[0003] In addition to hydraulic rock drilling equipment, the drilling equipment currently used in China also includes handheld pneumatic drills, which need to be held by the operator to work. There is a lot of vibration and noise when drilling, and the operator's work intensity is very high. In addition, the lubricating oil used to lubricate the drill will be atomized and diffused into the air near the drill, causing irreversible effects on the operator's health. At the same time, since the drill is located at the face, there is always the risk of falling rocks, and the operator's work safety cannot be guaranteed.

[0004] In order to make up for the shortcomings of hydraulic equipment and handheld pneumatic drills, domestic and foreign manufacturers have developed a variety of pneumatic rock drilling equipment. These pneumatic equipment mainly use compressed air as the power source. One implementation method is to drive the air motor through external compressed air, and then drive the hydraulic pump station to provide hydraulic power for the whole machine. Another implementation method is to drive the air compressor through the engine and the motor, and then provide compressed air power for the whole machine. The rock drilling positioning mechanism of the above two implementation methods is relatively simple, and it is impossible to quickly and accurately realize the positioning action of the blasthole. In the first implementation method, the walking power of the equipment comes from the external air source, and the air source air pipe needs to be connected to the equipment at all times, resulting in limited walking flexibility and walking distance. In the second implementation method, the equipment drives the air compressor through the engine and the motor. When the engine works, because the tunnel and the mine tunnel are confined spaces, the smoke discharged when the engine works will damage the health of the operators. In addition, the fuel consumption of the engine drive is also large; when the motor works, it is the same as the drive through external compressed air, which will also lead to limited walking flexibility and walking distance. Summary of the invention

[0005] In order to solve the deficiencies of the prior art, the purpose of the present invention is to provide a pneumatic tunneling system, which solves the problems in the prior art of limited equipment movement, severe environmental pollution and health hazards.

[0006] In order to achieve the above object, the present invention adopts the following technical solution:

[0007] A pneumatic tunneling system includes a pneumatic rock drill, a hydraulic system, a power system, an air system, a water system, a frame, a transmission system, a drill arm, and a thruster.

[0008] The power system includes an engine;

[0009] The pneumatic rock drill is mounted on a propeller, the propeller is connected to one end of the drill arm, and the other end of the drill arm is connected to the front end of the frame;

[0010] The rear end of the frame is equipped with a power system, and the transmission system is arranged below;

[0011] The hydraulic system is connected to the power system to provide power for walking and drilling arm movement;

[0012] The transmission system is also connected to the power system to transmit the power of the power system to the traveling mechanism; the water system is connected to the pneumatic rock drill to provide a flushing water source for the pneumatic rock drill to drill holes and discharge slag;

[0013] The air system is connected to the pneumatic rock drill to provide the pneumatic rock drill with working power during drilling and forward and backward propulsion power. The compressed air of the air system comes from the compressed air in the air duct in the tunnel.

[0014] Furthermore, the aforementioned thruster includes a rock drill mounting plate, a nylon slide bar, a thrust cylinder and a thrust beam. The rock drill mounting plate is connected to the nylon slide bar, the nylon slide bar is placed on the thrust beam slide rail, and the thrust cylinder is arranged inside the thrust beam and connected to the rock drill mounting plate.

[0015] Furthermore, the aforementioned also includes a wire rope and a wire rope pulley, the wire rope is wound around the wire rope pulley, one end of the wire rope is connected to the propulsion cylinder, and the other end is connected to the rock drill mounting plate.

[0016] Furthermore, the aforementioned drill arm includes a thruster compensation cylinder and a thruster bracket, one end of the thruster compensation cylinder is connected to the thruster bracket, and the other end is connected to the thrust beam, the thrust beam is arranged on the thruster bracket, and a lower nylon slide is also provided between the thrust beam and the thruster bracket.

[0017] Furthermore, the aforementioned frame includes a front frame, a rear frame and a steering cylinder. The front frame and the rear frame are connected by a pin shaft. One end of the rotating cylinder is connected to the front frame and the other end is connected to the rear frame. The engine is arranged on the rear frame.

[0018] Furthermore, the aforementioned air system also includes a rotary cylinder arranged on the pneumatic rock drill, and the rotary cylinder is used to control the on and off of the pneumatic rock drill.

[0019] Furthermore, the hydraulic system includes a travel pump and a gear pump. The travel pump is installed on the engine, and the gear pump is installed on the travel pump.

[0020] Furthermore, the transmission system includes a travel motor, a transfer case, a transmission shaft and an axle. The axle is connected to the transfer case via the transmission shaft, and the transfer case is connected to the travel motor.

[0021] Furthermore, the aforementioned also includes a control panel and a cover. The control panel is connected to the upper middle of the frame, and the cover is arranged on the upper and side parts.

[0022] Furthermore, the aforementioned operating console includes a ceiling, a seat, a drill arm positioning handle and a drilling handle, the ceiling is installed above the operating console, the seat is installed below the ceiling, and the drill arm positioning handle and the drilling handle are installed inside the operating console.

[0023] The beneficial effects achieved by the present invention are:

[0024] 1. The drilling vehicle is powered by an engine, its movement is not restricted by air pipes or cables, and its transfer capability is strong.

[0025] 2. During drilling, the drilling vehicle is powered by compressed air pipes in the tunnel. At this time, the engine is turned off, which is beneficial to the health of the operators. At the same time, when the drilling vehicle is working, the operator is at the operating table and operates through the handle, away from the face, so the safety of the operation is guaranteed.

[0026] 3. The drilling rig integrates a pneumatic rock drill into the rig. The whole machine has a simple control system and low maintenance costs. There is no need to add transformers and other facilities underground or in tunnels. It works through a drill arm that can be automatically maintained in parallel, with high positioning accuracy and high speed. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 It is a schematic diagram of the structure of the pneumatic drilling vehicle of the present invention;

[0028] Figure 2 It is a schematic diagram of the propulsion beam structure of the present invention;

[0029] Figure 3 The pneumatic drilling vehicle frame structure of the present invention;

[0030] Figure 4 It is the power system structure of the present invention;

[0031] Figure 5 It is a schematic diagram of the connection between the propulsion beam and the drill arm of the present invention;

[0032] Figure 6 It is a schematic diagram of the hydraulic system structure;

[0033] Figure 7 It is a schematic diagram of the connection between the drill arm and the front frame;

[0034] Figure 8 This is the installation diagram of the rotary cylinder;

[0035] Fig. 9 It is a schematic diagram of the control panel structure;

[0036] Fig.10 It is a schematic diagram of the transmission system structure.

[0037] The meanings of the reference numerals in the figure are as follows: 1-pneumatic rock drill; 2-operating panel; 3-hydraulic system; 4-power system; 5-covering; 6-air system; 7-water system; 8-frame; 9-transmission system; 10-drill arm; 11-thruster; 12-rock drill mounting plate; 13-nylon slide; 14-thrust cylinder; 15-thrust beam; 16-front frame; 17-rear frame; 18-steering cylinder; 19-engine; 20-thrust beam compensation cylinder; 21-thruster bracket; 22-travel pump; 23-gear pump; 24-rotary cylinder; 25-falling object protection canopy; 26-seat; 27-drill arm positioning handle; 28-drilling handle; 29-travel motor; 30-transfer case; 31-drive shaft; 32-axle; 33-wire rope pulley; 34-wire rope; 35-pin shaft; 36-lower nylon slide. DETAILED DESCRIPTION

[0038] The present invention will be further described below in conjunction with the accompanying drawings. The following embodiments are only used to more clearly illustrate the technical solution of the present invention, and cannot be used to limit the protection scope of the present invention.

[0039] like Figure 1 As shown, this embodiment discloses a pneumatic tunneling system, including a pneumatic rock drill 1, an operating console 2, a hydraulic system 3, a power system 4, a cover 5, an air system 6, a water system 7, a frame 8, a transmission system 9, a drill arm 10, and a thruster 11.

[0040] The pneumatic rock drill 1 is installed on a propeller 11, and the propulsion beam 11 is connected to the drill arm 10. The propeller 11 can move forward and backward along the drill arm 10, and the other end of the drill arm 10 is connected to the front end of the frame 8; a control console 2 is installed above the middle of the frame 8, and a cover 5 is arranged above and on the side of the frame 8. A power system 4 is also provided at the rear end of the frame 8, and a transmission system 9 is arranged below the frame 8; the hydraulic system 3 is connected to the power system 4 to provide power for the pneumatic excavation drilling vehicle to travel and the drill arm to move; the transmission system 9 is also connected to the power system 4 to transmit the power of the power system 4 to the travel mechanism; the water system 7 runs through the frame 8 and is finally connected to the pneumatic rock drill 1 along the drill arm 10, providing a flushing water source for the pneumatic rock drill 1 to drill and discharge slag, so that the drill slag can be discharged smoothly, and the pneumatic rock drill 1 is prevented from getting stuck when drilling; the air system 6 is connected to the pneumatic rock drill 1 to provide the pneumatic rock drill 1 with working power during drilling and forward and backward propulsion power.

[0041] like Figure 2 As shown, the thruster 11 includes a rock drill mounting plate 12, a nylon slide bar 13, a thrust cylinder 14 and a thrust beam 15 slide rail. The rock drill mounting plate 12 is connected to the upper nylon slide bar 13 and placed together on the thrust beam 15 slide rail. As the thrust cylinder 14 lever is extended and retracted, the pneumatic rock drill 1 and the rock drill mounting plate 12 slide back and forth on the thrust beam 15. The drilling and blasting method has a harsh working environment, and a large amount of sand, gravel and dust are easily accumulated above the thrust beam 15. The nylon slide bar 13 has good wear resistance and low use cost, which can greatly reduce the maintenance cost of the drilling vehicle. In other embodiments of the present invention, the nylon slide bar structure in this embodiment can also be changed to a linear guide or other linear sliding forms.

[0042] like Figure 8 As shown, the pneumatic rock drill 1 is mounted on the rock drill mounting plate 12, and the propulsion cylinder 14 is mounted inside the propulsion beam 15, and is connected to the rock drill mounting plate 12 through a wire rope 34 and a wire rope pulley 33. This movable pulley propulsion structure can reduce the stroke of the propulsion cylinder 14 to half of the drilling stroke, can minimize the length of the propeller 11, and improve the walking and steering flexibility of the drilling vehicle. At the same time, due to the use of the propulsion cylinder 14, when the pneumatic rock drill 1 is working, the engine 19 does not need to be pneumatic, further reducing the emission of the exhaust gas of the engine 19 in the closed tunnel, and effectively reducing the risk of harm to the operator's health. In other embodiments of the present invention, the propulsion cylinder 14 in this embodiment can also be replaced with a rodless cylinder, and the installation position of the cylinder can also be changed. The wire rope 34 and the wire rope pulley 33 in this embodiment can also be replaced with a chain or other transmission forms.

[0043] like Figure 3 As shown, the frame 8 is composed of a front frame 16, a rear frame 17 and a steering cylinder 18. The front frame 16 and the rear frame 17 are connected by a pin 35, and can be driven by the steering cylinder 18 to articulate around the pin, so that the drilling vehicle has a smaller turning radius. In other embodiments of the present invention, the articulated frame in this embodiment can also be changed to a non-articulated frame.

[0044] like Figure 5 As shown, the drill arm 10 includes a propulsion beam compensation cylinder 20 and a propeller bracket, one end of the propulsion beam compensation cylinder 20 is connected to the propeller bracket 21, and the other end is connected to the propulsion beam 15, the propeller bracket 21 is connected to the lower nylon slide bar 36, and the propulsion beam 15 is placed on the lower nylon slide bar 36. As the propulsion beam compensation cylinder 20 lever is extended and retracted, the propulsion beam 15 slides back and forth on the propeller bracket 21. In other embodiments of the present invention, the propulsion beam compensation cylinder 20 in this embodiment can also be cancelled, and the propulsion beam can be directly connected to the propeller bracket.

[0045] like Figure 7As shown, the drill arm 10 is connected to the front frame 16 by bolts. The drill arm 10 in this embodiment is a front and rear triangle automatic parallel holding structure. In other embodiments of the present invention, the drill arm in this embodiment can also be changed to a rectangular coordinate structure or other structures that cannot be automatically parallel held.

[0046] like Figure 4 As shown, the power system 4 includes an engine 19, which is installed on the rear frame 17 by bolts to provide power for the equipment to travel and the drill arm to position. The power system 4 is only started when the drilling vehicle is traveling and the drill arm is positioned during drilling. When the pneumatic rock drill 1 is started, the engine 19 is in a closed state to reduce the emission of exhaust gas in the closed tunnel. In other embodiments of the present invention, the power system in this embodiment can also be installed in other positions of the drilling vehicle. The cover 5 is arranged above and on the side of the frame 8. The cover 5 is provided with heat dissipation holes to dissipate the heat generated by the engine 19 more quickly. The cover 5 can also prevent acidic, corrosive dripping water and dust in the tunnel from entering the electrical components in the frame to cause short circuits and other faults.

[0047] like Figure 6 As shown, the hydraulic system 3 includes a travel pump 22 and a gear pump 23, which provide power for the drilling vehicle to travel and the drilling arm to move. The travel pump 22 is installed on the engine 19, and the gear pump 23 is installed on the travel pump 22. In other embodiments of the present invention, the travel pump 22 or the gear pump 23 in this embodiment can also be installed at other positions of the engine.

[0048] like Fig. 9 As shown, the control panel 2 is mounted on the vehicle frame 8, and the control panel 2 includes a roof 25, a seat 26, a drill arm positioning handle 27, and a drilling handle 28. The roof 25 is mounted above the control panel 2 to prevent falling objects. The seat 26 is mounted below the roof 25, and the drill arm positioning handle 27 and the drilling handle 28 are mounted on the control panel 2. In other embodiments of the present invention, the control panel, the roof, the seat, and the handle in this embodiment can also be mounted on other parts of the drilling vehicle.

[0049] like Fig.10 As shown, a transmission system 9 is also provided under the vehicle frame 8, including a travel motor 29, a transfer case 30, a transmission shaft 31 and an axle 32. The axle 32 is connected to the transfer case 30 through the transmission shaft 31, the transfer case 30 is connected to the travel motor 29, the travel pump 22 provides power to the travel motor 29, and the travel motor 29 provides power to the transfer case 30. In other embodiments of the present invention, the axle in this embodiment can also be replaced with a travel motor or other driving methods, the transmission shaft in this embodiment can also be cancelled, and the transfer case in this embodiment can also be cancelled or used in other forms.

[0050] The air system 6 also includes a rotary cylinder 24 arranged on the pneumatic rock drill 1. The air system 6 runs through the frame 8 and is finally connected to the pneumatic rock drill 1 along the drill arm 10 to provide the pneumatic rock drill 1 with working power when drilling. The other way is connected to the propulsion cylinder 14 and the rotary cylinder 24. The propulsion cylinder 14 provides power for the pneumatic rock drill 1 to propel forward and backward. The rotary cylinder 24 is used to control the on and off of the pneumatic rock drill 1 to keep the operator away from the dangerous face. The compressed air of the air system 6 comes from the compressed air of the air duct in the tunnel.

[0051] The above is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the technical principles of the present invention. These improvements and modifications should also be regarded as the scope of protection of the present invention.

Claims

1. A pneumatic tunneling system, characterized in that: The invention comprises a pneumatic rock drill (1), a hydraulic system (3), a power system (4), an air system (6), a water system (7), a frame (8), a transmission system (9), a drill arm (10), and a thruster (11). The power system (4) includes an engine (19); the power system (4) is started only when the drilling vehicle is moving and the drill arm is positioned during drilling, and the engine (19) is in a turned-off state when the pneumatic rock drill (1) is started; The pneumatic rock drill (1) is mounted on a propeller (11), the propeller (11) is connected to one end of a drill arm (10), and the other end of the drill arm (10) is connected to the front end of a vehicle frame (8); The rear end of the vehicle frame (8) is provided with a power system (4), and a transmission system (9) is arranged below; The hydraulic system (3) is connected to the power system (4) to provide power for walking and drilling arm movement; The transmission system (9) is also connected to the power system (4) to transmit the power of the power system (4) to the walking mechanism; the water system (7) is connected to the pneumatic rock drill (1) to provide a flushing water source for the pneumatic rock drill (1) to drill holes and discharge slag; The air system (6) is connected to the pneumatic rock drill (1) to provide the pneumatic rock drill (1) with working power during drilling and forward and backward propulsion power, and the compressed air of the air system (6) comes from the compressed air of the air duct in the tunnel; The propeller (11) comprises a rock drill mounting plate (12), a nylon slide bar (13), a propulsion cylinder (14) and a propulsion beam (15); the rock drill mounting plate (12) is connected to the nylon slide bar (13); the nylon slide bar (13) is placed on a slide rail of the propulsion beam (15); and the propulsion cylinder (14) is arranged inside the propulsion beam (15) and connected to the rock drill mounting plate (12); The drill arm (10) comprises a thruster compensation cylinder (20) and a thruster bracket (21); one end of the thruster compensation cylinder (20) is connected to the thruster bracket (21), and the other end is connected to a thrust beam (15); the thrust beam (15) is arranged on the thruster bracket (21); a lower nylon slide bar (36) is further provided between the thrust beam (15) and the thruster bracket (21); The air system (6) further comprises a rotary cylinder (24) arranged on the pneumatic rock drill (1), wherein the rotary cylinder (24) is used to control the on and off of the pneumatic rock drill (1).

2. A pneumatic tunneling system according to claim 1, characterized in that: It also includes a steel wire rope (34) and a steel wire rope pulley (33), wherein the steel wire rope (34) is wound around the steel wire rope pulley (33), one end of the steel wire rope (34) is connected to the propulsion cylinder (14), and the other end is connected to the rock drill mounting plate (12).

3. A pneumatic tunneling system according to claim 1, characterized in that: The frame (8) comprises a front frame (16), a rear frame (17) and a steering cylinder (18); the front frame (16) and the rear frame (17) are connected via a pin shaft; one end of the steering cylinder (18) is connected to the front frame (16) and the other end is connected to the rear frame (17); and the engine (19) is arranged on the rear frame (17).

4. A pneumatic tunneling system according to claim 1, characterized in that: The hydraulic system (3) comprises a travel pump (22) and a gear pump (23); the travel pump (22) is mounted on the engine (19), and the gear pump (23) is mounted on the travel pump (22).

5. The pneumatic tunneling system according to claim 1, characterized in that: The transmission system (9) comprises a travel motor (29), a transfer case (30), a transmission shaft (31) and an axle (32); the axle (32) is connected to the transfer case (30) via the transmission shaft (31), and the transfer case (30) is connected to the travel motor (29).

6. A pneumatic tunneling system according to claim 1, characterized in that: It also comprises a control panel (2) and a cover (5), wherein the control panel (2) is connected to the upper middle portion of the vehicle frame (8), and the cover (5) is arranged above and to the side of the vehicle frame (8).

7. A pneumatic tunneling system according to claim 6, characterized in that: The control panel (2) comprises a ceiling (25), a seat (26), a drill arm positioning handle (27) and a drilling handle (28); the ceiling (25) is installed above the control panel (2), the seat (26) is installed below the ceiling (25), and the drill arm positioning handle (27) and the drilling handle (28) are installed inside the control panel (2).

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