A concrete spraying truck for mining

Abstract

The invention relates to the technical field of concrete spraying, in particular to a mining concrete spraying vehicle, which can be flexibly operated in a new mine tunnel and improve work efficiency; the vehicle comprises a crawler chassis, a control box, a driving platform, an air compressor, a spraying machine, a plurality of retractors and a spray gun, wherein the rear end of the crawler chassis is provided with a control box and a driving platform, the air compressor is provided at the right side of the middle of the crawler chassis, the spraying machine is provided at the middle of the front of the crawler chassis, a plurality of retractors are provided on the crawler chassis respectively, the plurality of retractors are provided at the left side of the air compressor and at the left and right sides of the spraying machine respectively, a cable is retracted on the retractor on the left side of the air compressor, a concrete input pipe is retracted on the retractor on the left side of the spraying machine, a concrete spraying pipe is retracted on the retractor on the right side of the spraying machine, the air compressor and the spraying machine are connected via a high-pressure air pipe, the spray gun is provided at the front end of the crawler chassis, and the concrete spraying pipe connects the output port of the spraying machine and the input end of the spray gun.

Description

Technical Field

[0001] The invention relates to the technical field of concrete spraying, in particular to a concrete spraying vehicle for mining. Background Art

[0002] Shotcrete is a construction method that uses a pressure spray gun to spray and pour fine stone concrete. It is often used to pour tunnel linings, walls, ceilings and other thin-walled structures or other structural linings as well as protective layers for steel structures. Shotcrete is formed by loading pre-mixed cement, sand, gravel, water and a certain amount of admixtures into a sprayer, using high-pressure air to deliver them to the nozzle and mix with an accelerator, and then spraying them at a very high speed onto the surface of rock or concrete. In mine development, the mine tunnels are narrow and large concrete spraying trucks cannot enter. The existing small concrete spraying machines have no power and are difficult to move in new mine tunnels. It is inconvenient to use large concrete spraying trucks with extra-long pipelines for operation, and the pipeline laying and winding are time-consuming and laborious, resulting in difficulties in the concrete spraying construction of newly developed mine tunnels and low work efficiency. Summary of the invention

[0003] In order to solve the above technical problems, the present invention provides a mining concrete spraying vehicle which uses an electric crawler chassis to carry a spraying machine and can flexibly operate in a new mine tunnel, thereby reducing the difficulty of concrete spraying construction in the newly developed mine tunnel and improving work efficiency.

[0004] A mining concrete spraying vehicle of the present invention comprises a crawler chassis, a control box, a driving platform, an air compressor, a spraying machine, a plurality of retractors and a spray gun. A control box is installed at the rear end of the upper end surface of the crawler chassis, and a plurality of control buttons are arranged on the control box. The driving platform is installed at the middle of the rear end of the upper end surface of the crawler chassis, and an operating mechanism of the crawler chassis is arranged on the driving platform. The air compressor is installed at the right middle of the upper end surface of the crawler chassis, and the spraying machine is installed at the front middle of the upper end surface of the crawler chassis. A plurality of retractors are respectively installed on the upper end surface of the crawler chassis, and the plurality of retractors are respectively located on the left side of the air compressor and on the left and right sides of the spraying machine. The retractor on the left side of the air compressor is used to reel in a cable, the retractor on the left side of the spraying machine is used to reel in a concrete input pipe, and the retractor on the right side of the spraying machine is used to reel in a concrete spraying pipe. The two parts are connected by a high-pressure air pipe, the spray gun is located at the front end of the upper end surface of the crawler chassis, the output port of the sprayer is connected to the input end of the concrete spraying pipe, and the output end of the concrete spraying pipe is connected to the input end of the spray gun; the staff operates the crawler chassis through the driving platform to travel to the working position in the new mine tunnel, operates multiple reels to connect the air compressor to the external power supply equipment through cables, connects the input end of the concrete input pipe to the external small concrete transport vehicle, operates the air compressor and the sprayer through the control box, and the staff holds the spray gun to the position where concrete needs to be sprayed for spraying operations. The crawler chassis is small in size, has strong passing ability and load-bearing capacity, and can operate flexibly in the new mine tunnel, shorten the pipe laying distance, reduce the operation preparation time, reduce the difficulty of concrete spraying construction in the newly developed mine tunnel, and improve work efficiency.

[0005] Preferably, the crawler chassis also includes a load-bearing platform, two crawler walking mechanisms, two reduction motors, a battery box and a tool box. The load-bearing platform is configured as a square tube welded frame platform. The two crawler walking mechanisms are respectively installed on the left and right sides of the lower end surface of the load-bearing platform. Both crawler walking mechanisms are equipped with multiple road wheels, multiple track-supporting wheels, driving wheels and tracks. The two reduction motors are respectively installed on the two crawler walking mechanisms. The output shafts of the two reduction motors are respectively connected concentrically with the driving wheels of the two crawler walking mechanisms. The battery box is installed in the middle of the rear end of the upper end surface of the load-bearing platform, and the tool box is installed on the right part of the rear end surface of the load-bearing platform; the battery box provides power to drive the two reduction motors to rotate, and the two reduction motors drive the driving wheels of the two crawler walking mechanisms to rotate, and then drive the tracks of the two crawler walking mechanisms to rotate. Using two reduction motors to independently drive the two crawler walking mechanisms simplifies the mechanical structure, has stronger power, is simple to operate, is mature and reliable, and improves the practicality of the equipment.

[0006] Preferably, the operating platform also includes an operating frame, a rotating handle, a pedal and a torsion spring hook. The lower end of the operating frame is installed at the rear edge of the upper end surface of the carrying platform, and rotating handles are installed on the left and right sides of the upper end of the operating frame. A plurality of control buttons are provided on the two rotating handles. The middle part of the pedal is rotatably installed on the rear end lower edge of the carrying platform through two ear plates, and the two torsion spring hooks are respectively rotatably installed on the left and right sides of the operating frame through a rotating shaft. A torsion spring is connected between the two torsion spring hooks and the operating frame, and the upper end of the pedal is hooked and connected with the two torsion spring hooks. When the pedal is flipped, the lower end surface of the carrying platform clamps the lower end of the pedal, and the pedal is in a horizontal state. Generally, after the pedal is flipped and laid flat, the staff stands on the pedal and drives the crawler chassis to walk by operating the two rotating handles. The two rotating handles respectively control the two reduction motors. The two rotating handles are appropriately rotated, and the reduction motor runs at the corresponding speed. The operation is simple and flexible. When the mine road is low, the pedal is flipped vertically and hung on the two torsion spring hooks, and the staff follows the crawler chassis to improve the practicality of the equipment.

[0007] Preferably, the reel also includes a support frame, a rotating sleeve and a reeling frame, the lower end of the support frame is mounted on the upper end surface of the bearing platform, the rotating sleeve is rotatably mounted on the upper end of the support frame, the reeling frame is provided with a central axis tube and two fences, one end of the rotating sleeve is concentrically connected to the central axis tube of the reeling frame, and the other end of the rotating sleeve is installed with a rotating joint or an electric slip ring; the concrete input pipe and the concrete output pipe are respectively reeled on the two reeling frames, and one end of the concrete input pipe and the concrete output pipe are respectively connected to the central axis tubes of the two reeling frames, the rotating joints of the two rotating sleeves are respectively connected to the concrete input port and the concrete output port of the spraying machine through pipelines, the cable is reeled on the reeling frame on the left side of the air compressor, and one end of the cable passes through the central axis tube of the reeling frame and is connected to the electric slip ring of the rotating sleeve, and the electric slip ring of the rotating sleeve is connected to the air compressor through a line, which facilitates the reeling and laying of pipelines and cables and improves work efficiency.

[0008] Preferably, it also includes a pillar, a guide plate and two rollers, the lower end of the pillar is installed on the left side of the rear end of the upper end surface of the bearing platform, the upper end of the pillar is installed with a guide plate, the guide plate is provided with a cable guide hole and a concrete input pipe guide hole, and the two rollers are rotatably installed on the front side wall of the guide plate; the two rollers respectively provide rolling support for the cable and the concrete input pipe, the cable guide hole and the concrete input pipe guide hole of the guide plate respectively guide the cable and the concrete input pipe, which facilitates the laying of the cable and the concrete input pipe and avoids collision with the equipment during laying, thereby improving the laying work efficiency.

[0009] Preferably, it also includes two groove rails, multiple sliders, multiple gantries and multiple connecting rods, the two groove rails are respectively installed in parallel on the left and right sides of the upper end surface of the bearing platform, the multiple sliders are respectively slidably installed in the two groove rails, the multiple gantries are provided with two side columns and cross beams, the lower ends of the two side columns of the multiple gantries are respectively connected with the multiple sliders, one end of the multiple connecting rods are respectively rotatably installed on the upper end surfaces of the cross beams of the multiple gantries, the other ends of the two adjacent connecting rods are respectively rotatably connected, and a tarpaulin is installed to cover the outer surfaces of the multiple gantries; the tarpaulin is installed by supporting the multiple gantries to cover and protect the equipment to prevent falling rocks from damaging the equipment in the mine, the multiple gantries slide along the two groove rails through the multiple sliders to change the position state of the multiple gantries, so that the multiple gantries are unfolded during driving and retracted during operation, thereby improving the practicality of the equipment.

[0010] Preferably, it also includes a plurality of spotlights, which are installed on the cross beams of the plurality of gantries located in the front; by installing a plurality of spotlights, the lighting effect is enhanced, thereby improving the safety of driving and working.

[0011] Compared with the prior art, the beneficial effects of the present invention are as follows: the staff operates the crawler chassis through the driving platform to travel to the working position in the new mine tunnel, operates multiple reels to connect the air compressor to the external power supply equipment through cables, connects the input end of the concrete input pipe to the external small concrete transport vehicle, operates the air compressor and the sprayer through the control box, and the staff holds the spray gun to the position where concrete needs to be sprayed to carry out the spraying operation. The crawler chassis is small in size, has strong passing ability and load-bearing capacity, can operate flexibly in the new mine tunnel, shortens the pipe laying distance, reduces the operation preparation time, reduces the difficulty of concrete spraying construction in the newly developed mine tunnel, and improves work efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 It is a schematic diagram of the structure of the present invention;

[0013] Figure 2 It is a side structural schematic diagram of the present invention;

[0014] Figure 3 It is a schematic diagram of the structure of the crawler chassis;

[0015] Figure 4 It is a left axonometric structural schematic diagram of the present invention;

[0016] Figure 5 It is a structural schematic diagram of the right axonometric structure of the present invention;

[0017] Figure 6 It is a schematic diagram of the structure of the groove rail, slider, door frame, connecting rod and spotlight;

[0018] Markings in the attached drawings: 1. crawler chassis; 2. control box; 3. driving platform; 4. air compressor; 5. jet machine; 6. retractor; 7. spray gun; 8. load-bearing platform; 9. crawler walking mechanism; 10. reduction motor; 11. battery box; 12. tool box; 13. operating frame; 14. rotating handle; 15. pedal; 16. torsion spring hook; 17. support frame; 18. rotating sleeve; 19. retractor frame; 20. pillar; 21. guide plate; 22. roller; 23. groove rail; 24. slider; 25. door frame; 26. connecting rod; 27. spotlight. DETAILED DESCRIPTION

[0019] In order to facilitate understanding of the present invention, the present invention will be described more fully below with reference to the relevant drawings. The present invention can be implemented in many different forms and is not limited to the embodiments described herein. On the contrary, the purpose of providing these embodiments is to make the disclosure of the present invention more thorough and comprehensive.

[0020] Example 1

[0021] A mining concrete spraying vehicle comprises a crawler chassis 1, a control box 2, a driving platform 3, an air compressor 4, a spraying machine 5, a plurality of retractors 6 and a spray gun 7. A control box 2 is installed at the rear end of the upper end surface of the crawler chassis 1, and a plurality of control buttons are arranged on the control box 2. The driving platform 3 is installed in the middle of the rear end of the upper end surface of the crawler chassis 1, and an operating mechanism of the crawler chassis 1 is arranged on the driving platform 3. The air compressor 4 is installed in the middle right of the upper end surface of the crawler chassis 1, and the spraying machine 5 is installed in the middle of the front part of the upper end surface of the crawler chassis 1. A plurality of retractors 6 are respectively installed on the upper end surface of the crawler chassis 1, and the plurality of retractors 6 are respectively located on the left side of the air compressor 4 and on the left and right sides of the spraying machine 5. The retractor 6 on the left side of the air compressor 4 is used to reel in a cable, the retractor 6 on the left side of the spraying machine 5 is used to reel in a concrete input pipe, and the retractor 6 on the right side of the spraying machine 5 is used to reel in a concrete spraying pipe. 4 and the sprayer 5 are connected through a high-pressure air pipe, the spray gun 7 is located at the front end of the upper end surface of the crawler chassis 1, the output port of the sprayer 5 is connected to the input end of the concrete spraying pipe, and the output end of the concrete spraying pipe is connected to the input end of the spray gun 7; the staff operates the crawler chassis 1 to travel to the working position in the new mine through the driving platform 3, operates multiple reels 6 to connect the air compressor 4 with the external power supply equipment through cables, connects the input end of the concrete input pipe with the external small concrete transport vehicle, and operates the air compressor 4 and the sprayer 5 through the control box 2. The staff holds the spray gun 7 to the position where concrete needs to be sprayed for spraying operations. The crawler chassis 1 is small in size, has strong passing ability and load-bearing capacity, can be flexibly operated in the new mine, shortens the pipe laying distance, reduces the operation preparation time, reduces the difficulty of concrete spraying construction in the newly developed mine, and improves work efficiency.

[0022] Example 2

[0023] A mining concrete spraying vehicle comprises a crawler chassis 1, a control box 2, a driving platform 3, an air compressor 4, a sprayer 5, a plurality of retractors 6 and a spray gun 7. The control box 2 is installed at the rear end of the upper end surface of the crawler chassis 1, and a plurality of control buttons are arranged on the control box 2. The driving platform 3 is installed in the middle of the rear end of the upper end surface of the crawler chassis 1, and an operating mechanism of the crawler chassis 1 is arranged on the driving platform 3. The air compressor 4 is installed in the middle right of the upper end surface of the crawler chassis 1, and the sprayer 5 is installed in the middle of the front part of the upper end surface of the crawler chassis 1. A plurality of retractors 6 are respectively installed on the upper end surface of the crawler chassis 1, and the plurality of retractors 6 are respectively located on the left and right sides of the air compressor 4. On the left and right sides of the sprayer 5, the cable is wound on the reel 6 on the left side of the air compressor 4, the concrete input pipe is wound on the reel 6 on the left side of the sprayer 5, and the concrete spraying pipe is wound on the reel 6 on the right side of the sprayer 5. The air compressor 4 and the sprayer 5 are connected by a high-pressure air pipe. The spray gun 7 is located at the front end of the upper end surface of the crawler chassis 1. The output port of the sprayer 5 is connected to the input end of the concrete spraying pipe, and the output end of the concrete spraying pipe is connected to the input end of the spray gun 7; the crawler chassis 1 also includes a bearing platform 8, two crawler walking mechanisms 9, two reduction motors 10, a battery box 11 and a tool box 12. The bearing platform 8 is provided It is a square tube welded frame platform, two crawler walking mechanisms 9 are respectively installed on the left and right sides of the lower end surface of the load-bearing platform 8, and multiple road wheels, multiple track rollers, driving wheels and crawlers are installed on the two crawler walking mechanisms 9. Two reduction motors 10 are respectively installed on the two crawler walking mechanisms 9, and the output shafts of the two reduction motors 10 are respectively connected concentrically with the driving wheels of the two crawler walking mechanisms 9. The battery box 11 is installed in the middle of the rear end of the upper end surface of the load-bearing platform 8, and the tool box 12 is installed on the right part of the rear end surface of the load-bearing platform 8; the driving platform 3 also includes an operating frame 13, a rotating handle 14, a pedal 15 and a torsion spring hook 16, and the operation The lower end of the frame 13 is mounted on the rear edge of the upper end surface of the carrying platform 8. Rotating handles 14 are mounted on the left and right sides of the upper end of the operating frame 13. Multiple control buttons are arranged on the two rotating handles 14. The middle part of the pedal 15 is rotatably mounted on the lower edge of the rear end of the carrying platform 8 through two ear plates. Two torsion spring hooks 16 are rotatably mounted on the left and right sides of the operating frame 13 through rotating shafts. A torsion spring is connected between the two torsion spring hooks 16 and the operating frame 13. The upper end of the pedal 15 is hooked and connected with the two torsion spring hooks 16. When the pedal 15 is turned over, the lower end surface of the carrying platform 8 clamps the lower end of the pedal 15, and the pedal 15 is in a horizontal state.The invention also includes two groove rails 23, a plurality of sliders 24, a plurality of door frames 25 and a plurality of connecting rods 26. The two groove rails 23 are respectively installed in parallel on the left and right sides of the upper end surface of the bearing platform 8. The plurality of sliders 24 are respectively slidably installed in the two groove rails 23. The plurality of door frames 25 are provided with two side columns and cross beams. The lower ends of the two side columns of the plurality of door frames 25 are respectively connected with the plurality of sliders 24. One end of the plurality of connecting rods 26 is respectively rotatably installed on the upper end surface of the cross beam of the plurality of door frames 25. The other ends of the two adjacent connecting rods 26 are respectively rotatably connected. The tarpaulin is installed on the outer surface of the plurality of door frames 25. The invention also includes a plurality of spotlights 27. The plurality of spotlights 27 are installed on the cross beams of the plurality of door frames 25 in front. Generally, after the pedal 15 is turned over and laid flat, the staff stands on the pedal 15 and drives the crawler chassis 1 by operating the two rotating handles 14. When the mine road is low, the pedal 15 is turned vertically and hung on the two torsion spring hooks 16. The operator follows the crawler chassis 1 to walk, and the battery box 11 provides power to drive the two reduction motors 10 to rotate. The two rotating handles 14 control the two reduction motors 10 respectively. When the two rotating handles 14 are properly rotated, the reduction motors 10 drive the driving wheels of the two crawler walking mechanisms 9 to rotate at the corresponding speed, and then drive the crawlers of the two crawler walking mechanisms 9 to rotate. The two reduction motors 10 are used to independently drive the two crawler walking mechanisms 9, simplifying the mechanical structure, making the power stronger, simple to operate, mature and reliable. The tarpaulin is supported and installed by multiple door frames 25 to cover and protect the equipment to prevent the equipment from being damaged by falling rocks in the mine. The multiple door frames 25 slide along the two groove rails 23 through multiple sliders 24 to change the position state of the multiple door frames 25, so that the multiple door frames 25 are unfolded during driving and retracted during operation. The lighting effect is enhanced by installing multiple spotlights 27 to improve the safety of driving and operation. ;

[0024] Example 3

[0025] A mining concrete spraying vehicle comprises a crawler chassis 1, a control box 2, a driving platform 3, an air compressor 4, a sprayer 5, a plurality of retractors 6 and a spray gun 7. The control box 2 is installed at the rear end of the upper end surface of the crawler chassis 1, and a plurality of control buttons are arranged on the control box 2. The driving platform 3 is installed in the middle of the rear end of the upper end surface of the crawler chassis 1, and an operating mechanism of the crawler chassis 1 is arranged on the driving platform 3. The air compressor 4 is installed in the middle right of the upper end surface of the crawler chassis 1, and the sprayer 5 is installed in the middle of the front part of the upper end surface of the crawler chassis 1. A plurality of retractors 6 are respectively installed on the upper end surface of the crawler chassis 1, and the plurality of retractors 6 are respectively located on the left side of the air compressor 4 and on the left and right sides of the sprayer 5. The cable is wound on the reel 6 on the left side of the compressor 4, the concrete input pipe is wound on the reel 6 on the left side of the sprayer 5, and the concrete spraying pipe is wound on the reel 6 on the right side of the sprayer 5. The air compressor 4 and the sprayer 5 are connected by a high-pressure air pipe. The spray gun 7 is located at the front end of the upper end surface of the crawler chassis 1. The output port of the sprayer 5 is connected to the input end of the concrete spraying pipe, and the output end of the concrete spraying pipe is connected to the input end of the spray gun 7; the reel 6 also includes a support frame 17, a rotating sleeve 18 and a reel frame 19. The lower end of the support frame 17 is installed on the upper end surface of the bearing platform 8, the rotating sleeve 18 is rotatably installed on the upper end of the support frame 17, and the reel frame 19 is provided with a central axis The utility model relates to a tube and two fences, one end of the rotating sleeve 18 is concentrically connected with the central axis tube of the reeling frame 19, and the other end of the rotating sleeve 18 is installed with a rotating joint or an electric slip ring; it also includes a pillar 20, a guide plate 21 and two rollers 22, the lower end of the pillar 20 is installed on the left side of the rear end of the upper end surface of the bearing platform 8, the upper end of the pillar 20 is installed with a guide plate 21, the guide plate 21 is provided with a cable guide hole and a concrete input pipe guide hole, and the two rollers 22 are rotatably installed on the front side wall of the guide plate 21 respectively; the concrete input pipe and the concrete output pipe are respectively reeled on the two reeling frames 19, and one end of the concrete input pipe and the concrete output pipe are respectively connected with the two reeling frames 19. The central axis tube is connected, and the rotary joints of the two rotating sleeves 18 are connected to the concrete input port and concrete output port of the spray machine 5 through pipelines respectively. The cable is reeled on the reel-up rack 19 on the left side of the air compressor 4, and one end of the cable passes through the central axis tube of the reel-up rack 19 and is connected to the electric slip ring of the rotating sleeve 18. The electric slip ring of the rotating sleeve 18 is connected to the air compressor 4 through the line. The two rollers 22 respectively provide rolling support for the cable and the concrete input pipe. The cable guide hole and the concrete input pipe guide hole of the guide plate 21 guide the cable and the concrete input pipe respectively, which facilitates the laying of the cable and the concrete input pipe and avoids collision with the equipment during laying, thereby improving the laying work efficiency.

[0026] like Figures 1 to 6As shown, a mining concrete spraying vehicle of the present invention, when working, firstly, the worker turns over and lays the pedal 15 flat, stands on the pedal 15 and drives the crawler chassis 1 to the working position in the new mine tunnel by operating two rotating handles 14, then retracts multiple door frames 25, and then operates multiple retractors 6 to connect the air compressor 4 with the external power supply equipment through cables, connects the input end of the concrete input pipe with the external small concrete transport vehicle, operates the air compressor 4 and the sprayer 5 through the control box 2, and finally the worker holds the spray gun 7 and releases the concrete spraying pipe at the same time to reach the position where concrete needs to be sprayed to carry out the spraying operation.

[0027] The main functions achieved by the present invention are: using an electric crawler chassis to carry a spraying machine can flexibly operate in a new mine tunnel, reduce the difficulty of concrete spraying construction in the newly developed mine tunnel, and improve work efficiency.

[0028] The installation method, connection method or setting method of the mining concrete spraying vehicle of the present invention are all common mechanical methods, and any method that can achieve its beneficial effects can be implemented; the crawler chassis 1, air compressor 4, retractor 6, sprayer 5, spray gun 7, battery box 11, reduction motor 10, and crawler walking mechanism 9 of the mining concrete spraying vehicle of the present invention are purchased on the market, and technicians in the industry only need to install and operate them according to the accompanying instruction manual, without the need for creative labor by technicians in this field.

[0029] All technical and scientific terms used herein have the same meaning as those commonly understood by those skilled in the art of the present invention. The terms used herein in the specification of the present invention are only for the purpose of describing specific embodiments and are not intended to limit the present invention. The term "and / or" used herein includes any and all combinations of one or more related listed items.

[0030] 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 mining concrete spraying truck, characterized in that: The invention comprises a crawler chassis (1), a control box (2), a driving platform (3), an air compressor (4), a sprayer (5), a plurality of retractors (6) and a spray gun (7). The control box (2) is installed at the rear end of the upper end surface of the crawler chassis (1), and a plurality of control buttons are arranged on the control box (2). The driving platform (3) is installed at the middle of the rear end of the upper end surface of the crawler chassis (1), and an operating mechanism of the crawler chassis (1) is arranged on the driving platform (3). The air compressor (4) is installed at the right middle of the upper end surface of the crawler chassis (1), the sprayer (5) is installed in the middle of the front part of the upper end surface of the crawler chassis (1), and the plurality of retractors (6) are respectively installed at the crawler chassis ( On the upper end surface of the crawler chassis (1), a plurality of retractors (6) are respectively located on the left side of the air compressor (4) and the left and right sides of the sprayer (5); the retractor (6) on the left side of the air compressor (4) reels the cable, the retractor (6) on the left side of the sprayer (5) reels the concrete input pipe, and the retractor (6) on the right side of the sprayer (5) reels the concrete spraying pipe; the air compressor (4) and the sprayer (5) are connected through a high-pressure air pipe; the spray gun (7) is located at the front end of the upper end surface of the crawler chassis (1); the output port of the sprayer (5) is connected to the input end of the concrete spraying pipe, and the output end of the concrete spraying pipe is connected to the input end of the spray gun (7).

2. A mining concrete spraying vehicle as claimed in claim 1, characterized in that: The crawler chassis (1) also includes a load-bearing platform (8), two crawler travel mechanisms (9), two reduction motors (10), a battery box (11) and a tool box (12). The load-bearing platform (8) is set as a square tube welded frame platform. The two crawler travel mechanisms (9) are respectively installed on the left and right sides of the lower end surface of the load-bearing platform (8). The two crawler travel mechanisms (9) are both equipped with a plurality of road wheels, a plurality of track rollers, a driving wheel and a crawler. The two reduction motors (10) are respectively installed on the two crawler travel mechanisms (9). The output shafts of the two reduction motors (10) are respectively connected concentrically with the driving wheels of the two crawler travel mechanisms (9). The battery box (11) is installed in the middle of the rear end of the upper end surface of the load-bearing platform (8). The tool box (12) is installed in the right part of the rear end surface of the load-bearing platform (8).

3. A mining concrete spraying vehicle as claimed in claim 2, characterized in that: The driving platform (3) further comprises an operating frame (13), a rotating handle (14), a pedal (15) and a torsion spring hook (16); the lower end of the operating frame (13) is mounted on the rear edge of the upper end surface of the bearing platform (8); the rotating handle (14) is mounted on the left and right sides of the upper end of the operating frame (13); a plurality of control buttons are arranged on the two rotating handles (14); the middle part of the pedal (15) is rotatably mounted on the rear end lower edge of the bearing platform (8) through two ear plates; the two torsion spring hooks (16) are rotatably mounted on the left and right sides of the operating frame (13) through rotating shafts respectively; a torsion spring is connected between the two torsion spring hooks (16) and the operating frame (13); the upper end of the pedal (15) is hooked and connected with the two torsion spring hooks (16); when the pedal (15) is turned over, the lower end surface of the bearing platform (8) clamps the lower end of the pedal (15) so that the pedal (15) is in a horizontal state.

4. A mining concrete spraying vehicle as claimed in claim 2, characterized in that: The reel (6) further comprises a support frame (17), a rotating sleeve (18) and a reeling frame (19), wherein the lower end of the support frame (17) is mounted on the upper end surface of the bearing platform (8), the rotating sleeve (18) is rotatably mounted on the upper end of the support frame (17), the reeling frame (19) is provided with a central shaft tube and two fences, one end of the rotating sleeve (18) is concentrically connected to the central shaft tube of the reeling frame (19), and the other end of the rotating sleeve (18) is provided with a rotary joint or an electric slip ring.

5. A mining concrete spraying vehicle as claimed in claim 2, characterized in that: It also includes a support (20), a guide plate (21) and two rollers (22), wherein the lower end of the support (20) is mounted on the left side of the rear end of the upper end surface of the bearing platform (8), the upper end of the support (20) is mounted with a guide plate (21), a cable guide hole and a concrete input pipe guide hole are provided on the guide plate (21), and the two rollers (22) are rotatably mounted on the front side wall of the guide plate (21).

6. A mining concrete spraying vehicle as claimed in claim 2, characterized in that: It also includes two groove rails (23), a plurality of sliders (24), a plurality of door frames (25) and a plurality of connecting rods (26), wherein the two groove rails (23) are respectively installed in parallel on the left and right sides of the upper end surface of the bearing platform (8), the plurality of sliders (24) are respectively slidably installed in the two groove rails (23), the plurality of door frames (25) are each provided with two side columns and a cross beam, the lower ends of the two side columns of the plurality of door frames (25) are respectively connected to the plurality of sliders (24), one end of the plurality of connecting rods (26) is respectively rotatably installed on the upper end surface of the cross beam of the plurality of door frames (25), the other ends of the two adjacent connecting rods (26) are respectively rotatably connected, and a tarpaulin is installed to cover the outer surface of the plurality of door frames (25).

7. A mining concrete spraying vehicle as claimed in claim 6, characterized in that: It also includes a plurality of spotlights (27), which are installed on the crossbeams of the plurality of door frames (25) located in the front.

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