Anchoring and shotcreting machine for roadway support

Abstract

The invention belongs to the technical field of anchoring and shotcreting machines, and particularly relates to an anchoring and shotcreting machine for roadway supporting, which comprises an anchoring and shotcreting machine main body, a concrete high-pressure pump communicated with the interior of the anchoring and shotcreting machine main body is mounted in the middle of the surface of one end of the anchoring and shotcreting machine main body, and a rotating pipe is rotatably mounted at one end, away from the concrete high-pressure pump, of a fixed pipe; a first conveying pipe is mounted at the end, away from the rotating pipe, of the right-angle bent pipe, and a concrete sprayer is mounted at the end, away from the first conveying pipe, of the second conveying pipe. When anchoring and shotcreting supporting is carried out in a roadway, the orientation angles of the first conveying pipe, the second conveying pipe and the concrete sprayer can be automatically adjusted according to different positions in the roadway, and the anchoring and shotcreting efficiency is improved.

Description

Technical Field

[0001] The invention relates to the technical field of anchor spraying machines, in particular to an anchor spraying machine used for tunnel support. Background Art

[0002] Tunnel support refers to the technical measures to reinforce and support the rock mass around the underground tunnel in order to ensure the stability and safety of the underground tunnel during excavation and use. After the underground tunnel is excavated, the original stress balance of the surrounding rock mass is destroyed, which is prone to accidents such as collapse and roof fall. Tunnel support can effectively prevent these accidents and ensure the safety of construction personnel and equipment.

[0003] In the process of tunnel excavation, in order to ensure the stability and safety of the tunnel, tunnel support is usually required. Anchor spraying support is a commonly used tunnel support method. It forms a solid support structure by spraying anchor rods and concrete onto the tunnel wall. The anchor spraying machine is the key equipment to realize anchor spraying support.

[0004] However, when the existing anchor spraying machine is used, the staff is required to hold the anchor spraying pipe and manually adjust the direction angle of the anchor spraying pipe according to different positions in the tunnel, which is not only inefficient but also has high labor costs.

[0005] To this end, we propose an anchor spraying machine for tunnel support to solve the above problems. Summary of the invention

[0006] In view of the above-mentioned and / or existing problems in an existing anchor spraying machine for tunnel support, the present invention is proposed.

[0007] Therefore, the object of the present invention is to provide an anchor spraying machine for tunnel support. By improving the existing anchor spraying machine, it can solve the problem in the prior art that workers need to manually hold the anchor spraying pipe. When anchor spraying support is carried out in the tunnel, the direction angle of the anchor spraying pipe needs to be manually adjusted according to different positions in the tunnel.

[0008] To solve the above technical problems, according to one aspect of the present invention, the present invention provides the following technical solutions: An anchor spraying machine for tunnel support comprises an anchor spraying machine body, a concrete high-pressure pump connected to the anchor spraying machine body is installed in the middle of the surface of one end of the anchor spraying machine body, a connected fixed pipe is installed at the interface of the concrete high-pressure pump away from the anchor spraying machine body, a rotating pipe is rotatably installed at the end of the fixed pipe away from the concrete high-pressure pump, a right-angle bent pipe is fixed to the surface of the end of the rotating pipe away from the fixed pipe, a first material delivery pipe is installed at the end of the right-angle bent pipe away from the rotating pipe, a second material delivery pipe is fixed to the end of the first material delivery pipe away from the right-angle bent pipe, a concrete nozzle is installed at the end of the second material delivery pipe away from the first material delivery pipe, and a connected retractable hose is installed in the middle of the first material delivery pipe close to the anchor spraying machine body.

[0009] As a preferred embodiment of the anchor spraying machine for tunnel support described in the present invention, a high-pressure delivery pump for accelerating setting agent is installed in the middle of the upper surface of the anchor spraying machine body near one end of the concrete high-pressure pump, and the end of the telescopic hose away from the first feed pipe is installed between the discharge interface of the high-pressure delivery pump for accelerating setting agent, and the telescopic hose helps to connect the first feed pipe with the high-pressure delivery pump for accelerating setting agent, and a matching first through hole is opened on the inner annular surface of the first feed pipe corresponding to the telescopic hose, and the first through hole passes through the inner annular surface and the outer annular surface at the corresponding position on the first feed pipe, and a connecting pipe is installed at the feed interface of the high-pressure delivery pump for accelerating setting agent away from one end of the telescopic hose.

[0010] As a preferred embodiment of the anchor spraying machine for tunnel support described in the present invention, a plurality of first mixing rods are fixed at intervals on the end of the inner annular surface of the second material delivery pipe away from the first material delivery pipe, a plurality of second mixing rods are fixed at intervals on the end of the inner annular surface of the second material delivery pipe close to the first material delivery pipe, the first mixing rods and the second mixing rods are perpendicular to each other, an internal threaded tube is fixed on the edge portion of the surface of one end of the right-angle bend tube away from the rotating tube, an external threaded tube is fixed on the surface of one end of the first material delivery pipe close to the right-angle bend tube, the outer side of the external threaded tube is threadedly connected with the inner side of the internal threaded tube, and the internal threaded tube helps to install and limit the external threaded tube.

[0011] As a preferred solution of the anchor spraying machine for tunnel support described in the present invention, a mounting plate is installed on the lower surface of the anchor spraying machine body, the mounting plate is in a horizontal state, a fixing plate is fixed on the surface of one end of the mounting plate close to the concrete high-pressure pump, the fixing plate is in a horizontal state, a rotating motor is installed on the middle part of the upper surface of the fixing plate close to one side of the anchor spraying machine body, the fixing plate can fix and limit the rotating motor, and the output shaft of the rotating motor faces the end away from the anchor spraying machine body.

[0012] As a preferred solution of the anchor shotcrete machine for tunnel support described in the present invention, a gear ring is fixed on the outside of the outer ring surface of the rotating tube, and a gear is installed on the end of the outer ring surface of the rotating motor output shaft away from the anchor shotcrete machine body, and the lower side of the gear ring and the upper side of the gear are in a matching meshing state, and the gear helps to drive the gear ring to rotate.

[0013] As a preferred embodiment of the anchor spraying machine for tunnel support described in the present invention, a rotating ring is fixed on the end surface of the rotating tube close to the fixed tube, and an annular groove is provided on the end surface of the fixed tube away from the concrete high-pressure pump corresponding to the rotating ring. The rotating ring is rotatably connected to the annular groove on the fixed tube through a sealing bearing, and the rotating ring and the annular groove facilitate the rotatable connection between the rotating tube and the fixed tube.

[0014] As a preferred embodiment of the anchor spraying machine for tunnel support described in the present invention, a liquid accelerator storage tank is fixed to the middle of the upper surface of the anchor spraying machine body at one end of the connecting pipe away from the accelerator high-pressure delivery pump, the anchor spraying machine body can fix and limit the liquid accelerator storage tank, and the end of the connecting pipe away from the accelerator high-pressure delivery pump is fixedly connected to the corresponding position at the bottom of the liquid accelerator storage tank.

[0015] As a preferred embodiment of the anchor spraying machine for tunnel support described in the present invention, a matching second through hole is provided on the inner annular surface of the corresponding connecting pipe on the liquid quick-setting agent storage box, and the second through hole penetrates the inner surface and the outer surface of the corresponding position on the liquid quick-setting agent storage box. The top of the liquid quick-setting agent storage box is in an open state and is covered with a matching baffle cover, which can shield and protect the top of the liquid quick-setting agent storage box, and a handle is fixed in the middle of the upper surface of the baffle cover.

[0016] As a preferred solution of the anchor spraying machine for tunnel support described in the present invention, wherein: the four corners of the lower surface of the mounting plate are fixed with first connecting plates, the first connecting plates are in a horizontal state, the middle parts of both sides of the lower surface of the first connecting plate are fixed with second connecting plates, the first connecting plates can fix and limit the second connecting plates, the second connecting plates are in a vertical state, and movable wheels are installed between the middle parts of the lower ends of the opposite surfaces of the second connecting plates on the same lower surface of the first connecting plate for common rotation.

[0017] As a preferred solution of the anchor spraying machine for tunnel support described in the present invention, a rotating shaft is fixed in the middle of the moving wheel, the rotating shaft passes through the two side surfaces of the corresponding middle of the moving wheel, both ends of the rotating shaft pass through the two side surfaces of the corresponding positions on the corresponding second connecting plate, both ends of the outer ring surface of the rotating shaft are rotatably connected with the corresponding positions on the corresponding second connecting plate through bearings, and the rotating shaft helps to rotate and limit the moving wheel.

[0018] Compared with the prior art, the beneficial effects achieved by the present invention are: 1. In the present invention, when the rotating tube rotates, it can drive the concrete nozzle to rotate through the right-angle bending tube, the first material delivery pipe and the second material delivery pipe. When anchor spraying support is performed in the tunnel during use, the orientation angles of the first material delivery pipe, the second material delivery pipe and the concrete nozzle can be adjusted according to different positions in the tunnel, and there is no need for the staff to manually hold the first material delivery pipe, the second material delivery pipe and the concrete nozzle.

[0019] 2. In the present invention, the high-pressure concrete pump can spray and deliver concrete to the inner side of the first delivery pipe through the fixed pipe, the rotating pipe, the right-angle bent pipe and the externally threaded pipe, and the high-pressure delivery pump for accelerating setting agent and the telescopic hose can deliver the liquid accelerating setting agent to the first delivery pipe, so that the concrete and the liquid accelerating setting agent are mixed. When the concrete and the liquid accelerating setting agent pass between the first mixing rod and the second mixing rod inside the second delivery pipe, the first mixing rod and the second mixing rod are in a vertical state, so as to facilitate the mixing of the concrete and the liquid accelerating setting agent.

[0020] 3. In the present invention, the output shaft of the rotating motor can drive the gear to rotate, and when the gear rotates, it can drive the matching meshing gear ring to rotate, and when the gear ring rotates, it can drive the rotating tube to rotate, and when the rotating tube rotates, it can drive the rotating ring to rotate along the annular groove on the fixed tube. The fixed tube can limit the rotating tube through the annular groove and the rotating ring, which is convenient for the stable rotation of the rotating tube. The external threaded tube and the internal threaded tube are helpful for disassembly and installation of the first feed pipe, the second feed pipe and the concrete sprinkler. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a structural schematic diagram of the present invention; Figure 2 It is a schematic diagram of the right-angle bending tube structure of the present invention; Figure 3 for Figure 2 A partial enlarged schematic diagram of the middle A part; Figure 4 for Figure 2 A partial enlarged schematic diagram of the middle B part; Figure 5 It is a schematic diagram of the structure of the first material delivery pipe of the present invention; Figure 6 It is a schematic diagram of the structure of the retractable hose of the present invention; Figure 7 is a schematic structural diagram of a second connecting plate of the present invention; Figure 8 It is a schematic diagram of the connecting pipe structure of the present invention.

[0022] In the figure: 1. anchor spraying machine body; 2. mounting plate; 3. fixing plate; 4. first connecting plate; 5. second connecting plate; 6. rotating shaft; 7. moving wheel; 8. concrete high-pressure pump; 9. rotating motor; 10. gear; 11. gear ring; 12. fixing pipe; 13. annular groove; 14. rotating ring; 15. rotating pipe; 16. right-angle bending pipe; 17. internal threaded tube; 18. external threaded tube; 19. first feeding pipe; 20. second feeding pipe; 21. first mixing rod; 22. second mixing rod; 23. concrete nozzle; 24. accelerator high-pressure delivery pump; 25. connecting pipe; 26. retractable hose; 27. liquid accelerator storage box; 28. cover; 29. ​​handle; 30. first through hole; 31. second through hole. DETAILED DESCRIPTION

[0023] In order to make the objectives, technical solutions and advantages of the present invention more clear, the embodiments of the present invention will be further described in detail below with reference to the accompanying drawings.

[0024] The present invention provides an anchor spraying machine for tunnel support, which can adjust the orientation angles of a first material delivery pipe, a second material delivery pipe and a concrete spray head according to different positions in the tunnel when anchor spraying support is performed in the tunnel, thereby helping to save the manpower and material resources required.

[0025] See also Figure 1-8 A shotcrete anchoring machine for tunnel support comprises a shotcrete anchoring machine body 1, a high-pressure concrete pump 8 connected to the shotcrete anchoring machine body 1 is installed in the middle of one end surface of the shotcrete anchoring machine body 1, a fixed pipe 12 connected to the interface of the high-pressure concrete pump 8 away from one end of the shotcrete anchoring machine body 1 is installed, a rotating pipe 15 is rotatably installed on one end of the fixed pipe 12 away from the high-pressure concrete pump 8, a right-angle bending pipe 16 is fixed on one end surface of the rotating pipe 15 away from the fixed pipe 12, a first material delivery pipe 19 is installed on one end of the right-angle bending pipe 16 away from the rotating pipe 15, a second material delivery pipe 20 is fixed on one end of the first material delivery pipe 19 away from the right-angle bending pipe 16, and a second material delivery pipe 20 is installed on one end of the second material delivery pipe 20 away from the first material delivery pipe 19 A concrete spray head 23 is installed, and a connected retractable hose 26 is installed in the middle of the first feed pipe 19 near the anchor spray machine body 1. When the rotating tube 15 rotates, the concrete spray head 23 can be driven to rotate through the right-angle bending tube 16, the first feed pipe 19 and the second feed pipe 20. When in use, the anchor spray machine body 1 can be conveniently used. When the anchor spray machine body 1 is used, it is convenient to adjust the orientation angles of the first feed pipe 19, the second feed pipe 20 and the concrete spray head 23, which is helpful for spraying concrete support in the tunnel. When the anchor spray machine body 1 is used, it helps to save the manpower and material resources required, so as to facilitate the use of the anchor spray machine body 1.

[0026] Among them, a quick-setting agent high-pressure delivery pump 24 is installed in the middle of the upper surface of the anchor spraying machine body 1 near one end of the concrete high-pressure pump 8, and the retractable hose 26 is installed between the end away from the first material delivery pipe 19 and the discharge interface of the quick-setting agent high-pressure delivery pump 24. The retractable hose 26 helps to connect the first material delivery pipe 19 with the quick-setting agent high-pressure delivery pump 24. A matching first through hole 30 is opened on the inner annular surface of the first material delivery pipe 19 corresponding to the retractable hose 26. The first through hole 30 passes through the inner annular surface and the outer annular surface at the corresponding position on the first material delivery pipe 19. The quick-setting agent high-pressure delivery pump 24 is installed with a connecting pipe connected to the feed interface away from one end of the retractable hose 26. 25; a plurality of first mixing rods 21 are fixed at intervals on the end of the inner annular surface of the second material conveying pipe 20 away from the first material conveying pipe 19, and a plurality of second mixing rods 22 are fixed at intervals on the end of the inner annular surface of the second material conveying pipe 20 close to the first material conveying pipe 19, the first mixing rods 21 and the second mixing rods 22 are in a perpendicular state to each other, an internal threaded tube 17 is fixed to the edge portion of the surface of one end of the right-angle bending tube 16 away from the rotating tube 15, an external threaded tube 18 is fixed to the surface of one end of the first material conveying pipe 19 close to the right-angle bending tube 16, the outer side of the external threaded tube 18 is threadedly connected with the inner side of the internal threaded tube 17, and the internal threaded tube 17 helps to install and limit the external threaded tube 18.

[0027] The lower surface of the anchor spraying machine body 1 is installed with a mounting plate 2, and the mounting plate 2 is in a horizontal state. A fixing plate 3 is fixed to the surface of one end of the mounting plate 2 close to the concrete high-pressure pump 8, and the fixing plate 3 is in a horizontal state. A rotating motor 9 is installed on the upper surface of the fixing plate 3 close to the middle of one side of the anchor spraying machine body 1. The fixing plate 3 can fix and limit the rotating motor 9, and the output shaft of the rotating motor 9 faces the end away from the anchor spraying machine body 1; a gear ring 11 is fixed to the outer side of the outer annular surface of the rotating tube 15, and the outer annular surface of the output shaft of the rotating motor 9 is installed at the end away from the anchor spraying machine body 1 There is a gear 10, and the lower side of the gear ring 11 is in a matching meshing state with the upper side of the gear 10, and the gear 10 helps to drive the gear ring 11 to rotate; a rotating ring 14 is fixed to the end surface of the rotating tube 15 close to the fixed tube 12, and an annular groove 13 is provided on the end surface of the fixed tube 12 away from the concrete high-pressure pump 8 corresponding to the rotating ring 14. The rotating ring 14 is rotatably connected to the annular groove 13 on the fixed tube 12 through a sealed bearing, and the rotating ring 14 and the annular groove 13 help to rotatably connect the rotating tube 15 and the fixed tube 12.

[0028] A liquid accelerating agent storage tank 27 is fixed to the middle of the upper surface of the anchor spraying machine body 1 at one end of the connecting pipe 25 away from the accelerating agent high-pressure delivery pump 24. The anchor spraying machine body 1 can fix and limit the liquid accelerating agent storage tank 27. The end of the connecting pipe 25 away from the accelerating agent high-pressure delivery pump 24 is fixedly connected to the corresponding position at the bottom of the liquid accelerating agent storage tank 27; a matching second through hole 31 is opened on the inner annular surface of the liquid accelerating agent storage tank 27 corresponding to the connecting pipe 25, and the second through hole 31 passes through the inner surface and the outer surface of the corresponding position on the liquid accelerating agent storage tank 27. The top of the liquid accelerating agent storage tank 27 is in an open state and is covered with a matching blocking cover 28. The blocking cover 28 can shield and protect the top of the liquid accelerating agent storage tank 27, and a handle 29 is fixed to the middle of the upper surface of the blocking cover 28.

[0029] The four corners of the lower surface of the mounting plate 2 are fixed with a first connecting plate 4, the first connecting plates 4 are in a horizontal state, the middle parts of the two sides of the lower surface of the first connecting plate 4 are fixed with a second connecting plate 5, the first connecting plate 4 can fix and limit the second connecting plate 5, the second connecting plates 5 are in a vertical state, and the middle parts of the lower ends of the opposite surfaces of the second connecting plates 5 on the same lower surface of the first connecting plate 4 are jointly rotatably installed with a moving wheel 7; a rotating shaft 6 is fixed to the middle part of the moving wheel 7, the rotating shaft 6 passes through the two side surfaces of the corresponding middle part of the moving wheel 7, the two ends of the rotating shaft 6 pass through the two side surfaces of the corresponding positions on the corresponding second connecting plate 5, the two ends of the outer ring surface of the rotating shaft 6 are rotatably connected with the corresponding positions on the corresponding second connecting plate 5 through bearings, and the rotating shaft 6 helps to rotate and limit the moving wheel 7.

[0030] Working principle of the present invention: during use, the moving wheel 7 is stably placed at the position where it needs to be used, which is conducive to the stable use of the moving wheel 7. The moving wheel 7 can support and limit the second connecting plate 5 through the rotating shaft 6, which is convenient for the stable use of the second connecting plate 5. The second connecting plate 5 can support and limit the first connecting plate 4, which is conducive to the stable use of the first connecting plate 4. The first connecting plate 4 can support and limit the mounting plate 2 and the various components assembled on the mounting plate 2, which is convenient for the stable use of the mounting plate 2 and the various components assembled on the mounting plate 2. The mounting plate 2 can support and limit the anchor spraying machine body 1 and the various components assembled on the anchor spraying machine body 1, which is conducive to the stable use of the anchor spraying machine body 1 and the various components assembled on the anchor spraying machine body 1.

[0031] The concrete raw materials to be used are placed into the anchor spraying machine body 1, and the anchor spraying machine body 1 is opened. When the anchor spraying machine body 1 is opened, the anchor spraying machine body 1 can process the concrete raw materials. The baffle 28 covering the top of the liquid accelerator storage box 27 is removed by the handle 29, so that the top of the liquid accelerator storage box 27 is in an open state. The concrete liquid accelerator to be used is further poured into the liquid accelerator storage box 27, and the baffle 28 is reset to the top of the liquid accelerator storage box 27 by the handle 29. The baffle 28 can cover and protect the top of the liquid accelerator storage box 27, and can prevent dirt or foreign matter from entering the liquid accelerator storage box 27 and affecting its use.

[0032] The main body 1 of the anchor spraying machine can be moved by the moving wheel 7. When the moving wheel 7 moves, it will drive the rotating shaft 6 to rotate along the second connecting plate 5. The first connecting plate 4 can limit the moving wheel 7 through the second connecting plate 5 and the rotating shaft 6, so as to stably rotate the moving wheel 7. After the main body 1 of the anchor spraying machine is moved to the position where support is required in the tunnel, when the angle of the concrete spraying head 23 on the second feeding pipe 20 needs to be adjusted, the rotating motor 9 on the upper surface of the fixed plate 3 is turned on, and the fixed plate 3 can fix and limit the rotating motor 9. The rotating motor 9 is in the turned-on state, and the output shaft of the rotating motor 9 can drive the gear 10 to rotate. When the gear 10 rotates, it can drive the matching meshing gear ring 11 to rotate. When the gear ring 11 rotates, it can drive the rotating tube 15 to rotate. When the rotating tube 15 rotates, it can drive the rotating ring 14 to rotate along the annular groove 13 on the fixed tube 12. The fixed tube 12 can limit the rotating tube 15 through the annular groove 13 and the rotating ring 14, so as to facilitate the stable rotation of the rotating tube 15.

[0033] When the rotating tube 15 rotates, it can drive the right-angle bending tube 16 to rotate. When the right-angle bending tube 16 rotates, it can drive the first delivery tube 19 to rotate through the internal threaded tube 17 and the external threaded tube 18. When the first delivery tube 19 rotates, it can drive the second delivery tube 20 to rotate. When the second delivery tube 20 rotates, it can drive the concrete nozzle 23 to rotate, so as to adjust the orientation angle of the concrete nozzle 23. After adjusting the orientation angle of the concrete nozzle 23 to the angle required for use, the high-pressure concrete pump 8 on the anchor spraying machine body 1 is further opened, and the anchor spraying machine body 1 can fix and limit the high-pressure concrete pump 8, which is conducive to the stable use of the high-pressure concrete pump 8. When the high-pressure concrete pump 8 is turned on, the high-pressure concrete pump 8 can extract the concrete processed in the anchor spraying machine body 1, and the high-pressure concrete pump 8 can inject and transport the extracted concrete to the inner side of the first delivery tube 19 through the fixed tube 12, the rotating tube 15, the right-angle bending tube 16 and the external threaded tube 18.

[0034] The accelerator high-pressure delivery pump 24 on the upper surface of the anchor spraying machine body 1 is opened, and the anchor spraying machine body 1 can fix and limit the accelerator high-pressure delivery pump 24, so as to stably use the accelerator high-pressure delivery pump 24. When the accelerator high-pressure delivery pump 24 is opened, the accelerator high-pressure delivery pump 24 can extract the concrete liquid accelerator in the liquid accelerator storage tank 27 through the connecting pipe 25 and the second through hole 31 on the liquid accelerator storage tank 27. The accelerator high-pressure delivery pump 24 can deliver the extracted concrete liquid accelerator to the first delivery pipe 19 through the retractable hose 26 and the first through hole 30 on the first delivery pipe 19. The concrete in the material pipe 19 will carry the concrete liquid accelerating agent into the inner side of the second material conveying pipe 20, so that the concrete and the carried concrete liquid accelerating agent are transported between the first mixing rod 21 and the second mixing rod 22 inside the second material conveying pipe 20. Because the first mixing rod 21 and the second mixing rod 22 are in a vertical state, it is convenient to mix the concrete and the carried concrete liquid accelerating agent. After passing through the second material conveying pipe 20, the concrete and the concrete liquid accelerating agent will be sprayed to the position in the external tunnel where concrete support is required. The concrete liquid accelerating agent helps to quickly set the sprayed concrete and helps to support the tunnel.

[0035] When it is necessary to disassemble, clean or replace the first material delivery pipe 19, the second material delivery pipe 20 and the concrete spray head 23, the end of the retractable hose 26 away from the first material delivery pipe 19 is disassembled and separated from the accelerator high-pressure delivery pump 24, and the first material delivery pipe 19 is further rotated so that the first material delivery pipe 19 drives the external threaded pipe 18 to rotate. When the external threaded pipe 18 rotates, it moves upward along the inner side of the internal threaded tube 17 that is threadedly connected to it, so as to facilitate the disassembly and separation between the external threaded tube 18 and the internal threaded tube 17, and further the first material delivery pipe 19 and the second material delivery pipe 20 are cleaned and replaced. Removing the second material delivery pipe 20 and the concrete nozzle 23 is helpful to dismantle, clean or replace the first material delivery pipe 19, the second material delivery pipe 20 and the concrete nozzle 23. After dismantling, cleaning or replacing the first material delivery pipe 19, the second material delivery pipe 20 and the concrete nozzle 23, the external threaded pipe 18 is reset and inserted into the internal threaded tube 17, and the end of the retractable hose 26 away from the first material delivery pipe 19 is installed between the accelerator high-pressure delivery pump 24 to complete the reset installation of the first material delivery pipe 19, the second material delivery pipe 20 and the concrete nozzle 23.

[0036] During use, when anchor spraying support is carried out in the tunnel, it is convenient to adjust the orientation angles of the first feed pipe 19, the second feed pipe 20 and the concrete nozzle 23 according to different positions in the tunnel, which helps to save the manpower and material resources required and facilitates the use of the anchor spraying machine body 1.

[0037] Although the present invention has been described above with reference to the embodiments, various modifications may be made thereto and parts thereof may be replaced by equivalents without departing from the scope of the present invention. In particular, as long as there is no structural conflict, the various features in the embodiments disclosed in the present invention may be used in combination with each other in any manner, and the fact that these combinations are not exhaustively described in this specification is only for the sake of omitting space and saving resources. Therefore, the present invention is not limited to the specific embodiments disclosed herein, but includes all technical solutions falling within the scope of the claims.

Claims

1. An anchor spraying machine for tunnel support, comprising an anchor spraying machine body (1), characterized in that: A high-pressure concrete pump (8) connected to the anchor spray machine body (1) is installed in the middle of the surface of one end of the anchor spray machine body (1); a connected fixed pipe (12) is installed at an interface of the high-pressure concrete pump (8) at one end away from the anchor spray machine body (1); a rotating pipe (15) is rotatably installed at one end of the fixed pipe (12) away from the high-pressure concrete pump (8); a right-angle bending pipe (16) is fixed to the surface of one end of the rotating pipe (15) away from the fixed pipe (12); a first material delivery pipe (19) is installed at one end of the right-angle bending pipe (16) away from the rotating pipe (15); a second material delivery pipe (20) is fixed to one end of the first material delivery pipe (19) away from the right-angle bending pipe (16); a concrete spray head (23) is installed at one end of the second material delivery pipe (20) away from the first material delivery pipe (19); and a connected retractable hose (26) is installed in the middle of the first material delivery pipe (19) on the side close to the anchor spray machine body (1).

2. The anchor spraying machine for tunnel support according to claim 1, characterized in that: A high-pressure delivery pump (24) for accelerating setting agent is installed in the middle of the upper surface of the anchor spraying machine body (1) near one end of the high-pressure concrete pump (8); an end of the telescopic hose (26) away from the first delivery pipe (19) is installed between the discharge interface of the high-pressure delivery pump (24) for accelerating setting agent; an inner ring surface of the first delivery pipe (19) corresponding to the telescopic hose (26) is provided with a matching first through hole (30); the first through hole (30) penetrates the inner ring surface and the outer ring surface at corresponding positions on the first delivery pipe (19); and a connecting pipe (25) is installed at the feed interface of the end of the high-pressure delivery pump (24) away from the telescopic hose (26).

3. The anchor spraying machine for tunnel support according to claim 2, characterized in that: A plurality of first mixing rods (21) are fixed at intervals on the end of the inner annular surface of the second material conveying pipe (20) away from the first material conveying pipe (19), and a plurality of second mixing rods (22) are fixed at intervals on the end of the inner annular surface of the second material conveying pipe (20) close to the first material conveying pipe (19), the first mixing rods (21) and the second mixing rods (22) are in a perpendicular state to each other, an internal threaded tube (17) is fixed to the edge portion of the surface of one end of the right-angle bending tube (16) away from the rotating tube (15), and an external threaded tube (18) is fixed to the surface of one end of the first material conveying pipe (19) close to the right-angle bending tube (16), and the outer side of the external threaded tube (18) is threadedly connected to the inner side of the internal threaded tube (17).

4. The anchor spraying machine for tunnel support according to claim 3, characterized in that: A mounting plate (2) is mounted on the lower surface of the anchor spraying machine body (1), the mounting plate (2) being in a horizontal state, a fixing plate (3) is fixed on the surface of one end of the mounting plate (2) close to the concrete high-pressure pump (8), the fixing plate (3) being in a horizontal state, and a rotating motor (9) is mounted on the middle part of the upper surface of the fixing plate (3) close to one side of the anchor spraying machine body (1), the output shaft of the rotating motor (9) being directed toward the end away from the anchor spraying machine body (1).

5. The anchor spraying machine for tunnel support according to claim 4, characterized in that: A gear ring (11) is fixed to the outside of the outer annular surface of the rotating tube (15), and a gear (10) is installed at one end of the outer annular surface of the output shaft of the rotating motor (9) away from the anchor spraying machine body (1), and the lower side of the gear ring (11) and the upper side of the gear (10) are in a matching meshing state.

6. The anchor spraying machine for tunnel support according to claim 5, characterized in that: A rotating ring (14) is fixed to one end surface of the rotating tube (15) close to the fixed tube (12); an annular groove (13) is provided on one end surface of the fixed tube (12) away from the concrete high-pressure pump (8) and corresponding to the rotating ring (14); the rotating ring (14) is rotatably connected to the annular groove (13) on the fixed tube (12) via a sealing bearing.

7. The anchor spraying machine for tunnel support according to claim 6, characterized in that: A liquid accelerating agent storage tank (27) is fixed to the middle of the upper surface of the anchor spraying machine body (1) at one end of the connecting pipe (25) away from the accelerating agent high pressure delivery pump (24), and the end of the connecting pipe (25) away from the accelerating agent high pressure delivery pump (24) is fixedly connected to a corresponding position at the bottom of the liquid accelerating agent storage tank (27).

8. The anchor spraying machine for tunnel support according to claim 7, characterized in that: A matching second through hole (31) is formed on the inner annular surface of the liquid quick-setting agent storage box (27) corresponding to the connecting pipe (25). The second through hole (31) penetrates the inner surface and the outer surface of the liquid quick-setting agent storage box (27) at the corresponding position. The top of the liquid quick-setting agent storage box (27) is in an open state and is covered with a matching blocking cover (28). A handle (29) is fixed in the middle of the upper surface of the blocking cover (28).

9. The anchor spraying machine for tunnel support according to claim 8, characterized in that: First connecting plates (4) are fixed to the four corners of the lower surface of the mounting plate (2), and the first connecting plates (4) are in a horizontal state. Second connecting plates (5) are fixed to the middle of both sides of the lower surface of the first connecting plate (4), and the second connecting plates (5) are in a vertical state. Moving wheels (7) are rotatably mounted between the middle of the lower ends of the opposite surfaces of the second connecting plates (5) on the lower surface of the same first connecting plate (4).

10. The anchor spraying machine for tunnel support according to claim 9, characterized in that: A rotating shaft (6) is fixed in the middle of each moving wheel (7), the rotating shaft (6) penetrates the two side surfaces of the middle of the corresponding moving wheel (7), both ends of the rotating shaft (6) penetrate the two side surfaces of the corresponding position on the corresponding second connecting plate (5), and both ends of the outer ring surface of the rotating shaft (6) are rotatably connected to the corresponding position on the corresponding second connecting plate (5) through bearings.

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