A grouting and spraying device for side wall and top wall of hydraulic tunnel

Abstract

The application discloses a grouting spraying device for side walls and top walls of hydraulic tunnels and belongs to the technical field of hydraulic tunnels, which comprises a vehicle body, a grouting barrel is fixedly installed on the top of the vehicle body, a support is arranged on one side of the grouting barrel on the top of the vehicle body, a crushing mechanism is arranged on the top of the support, the crushing mechanism comprises a crushing box, and the crushing box is fixedly installed on the top of the support; after the vehicle body moves to a working position, grouting raw materials are added into the grouting barrel, a pump is started to extract the grouting in the grouting barrel, the grouting passes through the crushing box before entering the pump, motor two is started synchronously to drive the rotating shaft and the crushing head to rotate, the cement blocks in the grouting entering the crushing box are crushed, then the pump conveys the crushed and relatively uniform grouting materials to the spray head through the telescopic hose, and finally the spray head uniformly sprays the grouting materials on the side walls and top walls of the hydraulic tunnels, so that the possibility of blockage of the spray head is greatly reduced, the number of shutdown maintenance is reduced, and the construction efficiency is improved.

Description

Technical Field

[0001] This application relates to the field of hydraulic tunnel technology, and in particular to a grouting spraying device for the sidewalls and topwalls of hydraulic tunnels. Background Technology

[0002] Hydraulic tunnels are located in complex hydrogeological environments and are affected by groundwater erosion, changes in surrounding rock pressure, and various factors during construction. As a result, the tunnel sidewalls and roofs are prone to various degrees of damage, such as cracks, leakage, and spalling. In order to ensure the stability of the structure, spraying treatment is required.

[0003] Grouting spraying equipment requires mixing cement and related admixtures. However, improper storage of cement can lead to moisture absorption and clumping, making subsequent mixing of cement and related admixtures difficult. The resulting grout is uneven and contains large cement lumps, which can clog the nozzles during spraying, requiring frequent shutdowns for maintenance and resulting in low construction efficiency.

[0004] Therefore, this application provides a grouting spraying device for the sidewalls and topwalls of hydraulic tunnels. Utility Model Content

[0005] To address the shortcomings of existing technologies, this application provides a grouting spraying device for the sidewalls and roofs of hydraulic tunnels, which overcomes the deficiencies of existing technologies. It aims to solve the problems that grouting spraying equipment requires mixing cement and related admixtures, but improper storage of cement can lead to moisture absorption and clumping, making subsequent mixing of cement and related admixtures difficult, resulting in uneven grouting, the presence of large cement blocks, clogging of the spray nozzle during spraying, frequent shutdowns for maintenance, and low construction efficiency.

[0006] To achieve the above objectives, this application provides the following technical solution: a grouting spraying device for the sidewalls and top walls of a hydraulic tunnel, comprising a vehicle body, a grouting cylinder fixedly installed on the top of the vehicle body, a support frame located on one side of the grouting cylinder on the top of the vehicle body, a crushing mechanism on the top of the support frame, the crushing mechanism comprising a crushing box fixedly installed on the top of the support frame, a support frame installed inside the crushing box, an installation groove provided inside the support frame, a second motor fixedly installed inside the installation groove, a rotating shaft fixedly installed at the output end of the second motor, a crushing head fixedly installed at one end of the rotating shaft through the support frame, a conveying pipe connecting the crushing box and the grouting cylinder, a pump fixedly installed at the top of the support frame, the pump's extraction end connected to the crushing box, a nozzle provided above the vehicle body, and a telescopic hose connecting the pump and the nozzle.

[0007] By adopting the above technical solution, after the vehicle body moves to the working position, the grouting material is added into the grouting cylinder, and the pump is started to extract the grout from the grouting cylinder. Before entering the pump, the grout passes through the crushing box. Simultaneously, the second motor is started to drive the rotating shaft and the crushing head to rotate, crushing the cement blocks in the grout that have entered the crushing box. Then, the pump delivers the relatively uniform crushed grout to the nozzle through the telescopic hose. Finally, the nozzle evenly sprays the grout onto the sidewall and top wall of the hydraulic tunnel, greatly reducing the possibility of nozzle clogging, reducing the number of downtime maintenance, and improving construction efficiency.

[0008] As a preferred technical solution of this application, a lateral displacement mechanism is provided on the top of the vehicle body. The lateral displacement mechanism is located on the side of the bracket away from the grouting cylinder. A longitudinal displacement mechanism is provided on the top of the lateral displacement mechanism. A support plate is fixedly installed on the top of the longitudinal displacement mechanism. The nozzle is installed above the support plate. An angle adjustment mechanism is provided on one side of the nozzle.

[0009] By adopting the above technical solution, the nozzle is adjusted laterally by a lateral displacement mechanism, longitudinally by a longitudinal displacement mechanism, and angle by an angle adjustment mechanism, which facilitates position adjustment of the nozzle when spraying the sidewalls and topwalls of hydraulic tunnels.

[0010] As a preferred technical solution of this application, the grouting cylinder is provided with a stirring mechanism inside. The stirring mechanism includes a motor, which is fixedly installed at the top of the grouting cylinder. A stirring shaft is fixedly installed at the output end of the motor, and several sets of stirring blades are installed on the outer surface of the stirring shaft.

[0011] By adopting the above technical solution, the stirring shaft is driven by a motor to rotate, and the stirring blades on the stirring shaft rotate accordingly. This can mix the cement and admixtures in the grouting cylinder, which helps to maintain the uniformity of the grouting material.

[0012] As a preferred embodiment of this application, the lateral displacement mechanism includes a rectangular frame, which is fixedly installed on the top of the vehicle body. A reciprocating motor II is fixedly installed inside the rectangular frame, and a threaded rod is fixedly installed at the output end of the reciprocating motor II. The end of the threaded rod away from the reciprocating motor II is rotatably connected to the inner wall of the rectangular frame. Two sets of moving blocks are threadedly connected to the outer surface of the threaded rod. A through slot is provided at the top of the rectangular frame, and a mounting plate is fixedly installed through the through slot at the top ends of the two sets of moving blocks. The longitudinal displacement mechanism is fixedly installed on the top of the mounting plate.

[0013] By adopting the above technical solution, the reciprocating motor II drives the threaded rod to rotate in the forward or reverse direction. The moving block moves laterally under the action of the threaded rod, which drives the mounting plate and the longitudinal displacement mechanism to move together, thereby achieving the purpose of automatic lateral displacement of the nozzle.

[0014] As a preferred technical solution of this application, the longitudinal displacement mechanism is an electric push rod.

[0015] By adopting the above technical solution, the longitudinal displacement mechanism is an electric push rod, which automatically extends and retracts to push the support plate longitudinally, thereby achieving the purpose of automatic longitudinal displacement of the nozzle.

[0016] As a preferred embodiment of this application, the angle adjustment mechanism includes a mounting box, which is fixedly mounted on the top of the support plate. A support is fixedly mounted on the top of the support plate. The nozzle is rotatably connected between the mounting box and the support. A linkage shaft is rotatably connected inside the mounting box. One end of the linkage shaft is connected to the rotating end of the nozzle. A reciprocating motor is fixedly mounted inside the mounting box. A driving bevel gear is fixedly mounted on the output end of the reciprocating motor. A driven bevel gear is fixedly mounted on the outer surface of the linkage shaft. The driving bevel gear and the driven bevel gear mesh with each other.

[0017] By adopting the above technical solution, the reciprocating motor is started, which drives the active bevel gear to rotate and mesh with the driven bevel gear. The driven bevel gear drives the linkage shaft to rotate, and the linkage shaft then drives the nozzle to adjust the angle, thereby achieving the purpose of automatic nozzle angle adjustment.

[0018] As a preferred technical solution of this application, a guide rod is fixedly installed inside the rectangular frame below the threaded rod, and two sets of guide blocks are slidably connected to the outer surface of the guide rod. A connecting rod is installed between each set of guide blocks and the corresponding moving block.

[0019] By adopting the above technical solution, when the moving block is displaced, the guide block slides on the guide rod through the linkage, which improves the guiding performance of the moving block during displacement.

[0020] As a preferred technical solution of this application, the stirring blade has several sets of guide holes inside.

[0021] By adopting the above technical solution, when the material in the grouting cylinder is stirred by the stirring blade, the turbulence of the grouting material in the grouting cylinder is increased by the guide hole, which is conducive to further improving the quality of the grouting material.

[0022] The beneficial effects of this application are:

[0023] 1. After the vehicle is moved to the working position, the grouting material is added into the grouting cylinder. The pump is started to extract the grout from the grouting cylinder. Before entering the pump, the grout passes through the crushing box. Simultaneously, motor two is started to drive the rotating shaft and crushing head to rotate, crushing the cement blocks in the grout that have entered the crushing box. Then, the pump delivers the relatively uniform crushed grout to the nozzle through the telescopic hose. Finally, the nozzle evenly sprays the grout onto the sidewall and top wall of the hydraulic tunnel, greatly reducing the possibility of nozzle clogging, reducing the number of downtime maintenance, and improving construction efficiency.

[0024] 2. The nozzle is adjusted laterally by a lateral displacement mechanism, longitudinally by a longitudinal displacement mechanism, and at an angle by an angle adjustment mechanism, which facilitates position adjustment of the nozzle when spraying the sidewalls and top walls of hydraulic tunnels. Attached Figure Description

[0025] Figure 1 This is a schematic diagram of the overall structure of this application;

[0026] Figure 2 This is a schematic diagram of the crushing mechanism.

[0027] Figure 3 Schematic diagrams of the lateral displacement mechanism, longitudinal displacement mechanism, and angle adjustment mechanism;

[0028] Figure 4 This is a schematic diagram of the stirring mechanism structure of this application.

[0029] In the diagram: 1. Vehicle body; 2. Grouting cylinder; 3. Support; 4. Connecting rod; 5. Crushing mechanism; 501. Crushing box; 502. Support frame; 503. Mounting slot; 504. Motor II; 505. Rotating shaft; 506. Crushing head; 507. Conveying pipe; 6. Pump; 7. Lateral displacement mechanism; 701. Rectangular frame; 702. Reciprocating motor II; 703. Threaded rod; 704. Moving block; 705. Mounting plate; 706. Through slot; 8. 9. Longitudinal displacement mechanism; 10. Support plate; 11. Nozzle; 12. Guide rod; 13. Angle adjustment mechanism; 14. Mounting box; 15. Support; 16. Linkage shaft; 17. Reciprocating motor 1; 18. Driving bevel gear; 19. Driven bevel gear; 10. Telescopic hose; 11. Guide block; 12. Stirring mechanism; 13. Motor 1; 14. Stirring shaft; 15. Stirring blade; 16. Guide hole. Detailed Implementation

[0030] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0031] Reference Figure 1-4 A grouting spraying device for the sidewalls and roof of a hydraulic tunnel includes a vehicle body 1. A grouting cylinder 2 is fixedly installed on the top of the vehicle body 1. A support 3 is provided on one side of the grouting cylinder 2 on the top of the vehicle body 1. A crushing mechanism 5 is provided on the top of the support 3. The crushing mechanism 5 includes a crushing box 501, which is fixedly installed on the top of the support 3. A support frame 502 is installed inside the crushing box 501. An installation groove 503 is provided inside the support frame 502. A second motor 504 is fixedly installed inside the installation groove 503. A rotating shaft 505 is fixedly installed at the output end of the second motor 504. One end of the rotating shaft 505 passes through the support frame. A crushing head 506 is fixedly installed in 502. A conveying pipe 507 connects the crushing box 501 and the grouting cylinder 2. A pump 6 is fixedly installed at the top of the support 3. The extraction end of the pump 6 is connected to the crushing box 501. A nozzle 10 is installed on the top of the vehicle body 1. A telescopic hose 13 connects the pump 6 and the nozzle 10. A stirring mechanism 15 is installed inside the grouting cylinder 2. The stirring mechanism 15 includes a motor 1501. The motor 1501 is fixedly installed at the top of the grouting cylinder 2. A stirring shaft 1502 is fixedly installed at the output end of the motor 1501. Several sets of stirring blades 1503 are installed on the outer surface of the stirring shaft 1502.

[0032] After the vehicle body 1 moves to the working position, the grouting material is added into the grouting cylinder 2. The pump 6 is started to extract the grout from the grouting cylinder 2. Before entering the pump 6, the grout passes through the crushing box 501. The motor 504 is started simultaneously, driving the rotating shaft 505 and the crushing head 506 to rotate, crushing the cement blocks in the grout that have entered the crushing box 501. Then, the pump 6 delivers the relatively uniform crushed grout to the nozzle 10 through the telescopic hose 13. Finally, the nozzle 10 sprays the grout evenly onto the side wall and top wall of the hydraulic tunnel, greatly reducing the possibility of nozzle 10 clogging, reducing the number of downtime maintenance, and improving construction efficiency. The motor 1501 drives the mixing shaft 1502 to rotate, and the mixing blades 1503 on the mixing shaft 1502 rotate accordingly, which can mix the cement and admixtures in the grouting cylinder 2, which helps to maintain the uniformity of the grout.

[0033] Reference Figure 1-3A lateral displacement mechanism 7 is provided on the top of the vehicle body 1. The lateral displacement mechanism 7 is located on the side of the support 3 away from the grouting cylinder 2. A longitudinal displacement mechanism 8 is provided on the top of the lateral displacement mechanism 7. A support plate 9 is fixedly installed on the top of the longitudinal displacement mechanism 8. A nozzle 10 is installed above the support plate 9. An angle adjustment mechanism 12 is provided on one side of the nozzle 10. The lateral displacement mechanism 7 includes a rectangular frame 701. The rectangular frame 701 is fixedly installed on the top of the vehicle body 1. A reciprocating motor 702 is fixedly installed inside the rectangular frame 701. A threaded rod 703 is fixedly installed at the output end of the reciprocating motor 702. The end of the threaded rod 703 away from the reciprocating motor 702 is rotatably connected to the inner wall of the rectangular frame 701. Two sets of moving blocks 704 are threadedly connected to the outer surface of the threaded rod 703. A through groove 706 is opened on the top of the rectangular frame 701. An installation plate 705 is fixedly installed through the through groove 706 at the top of the two sets of moving blocks 704. The longitudinal displacement mechanism 8 is fixedly installed on the top of the installation plate 705.

[0034] The nozzle 10 is adjusted laterally by the lateral displacement mechanism 7, longitudinally by the longitudinal displacement mechanism 8, and angle by the angle adjustment mechanism 12, which facilitates the position adjustment of the nozzle 10 when spraying the side and top walls of the hydraulic tunnel. By controlling the reciprocating motor 702 to drive the threaded rod 703 to rotate in the forward or reverse direction, the moving block 704 moves laterally under the action of the thread of the threaded rod 703, which drives the mounting plate 705 and the longitudinal displacement mechanism 8 to move together, thereby achieving the purpose of automatic lateral displacement of the nozzle 10.

[0035] Reference Figure 1-3 The longitudinal displacement mechanism 8 is an electric push rod; inside the rectangular frame 701, a guide rod 11 is fixedly installed below the threaded rod 703. Two sets of guide blocks 14 are slidably connected to the outer surface of the guide rod 11. A connecting rod 4 is installed between each set of guide blocks 14 and the corresponding moving block 704. The longitudinal displacement mechanism 8 is an electric push rod, which automatically extends and retracts to push the support plate 9 to move longitudinally, thereby achieving the purpose of automatic longitudinal displacement of the nozzle 10. When the moving block 704 moves, the guide block 14 slides on the guide rod 11 through the connecting rod 4, which improves the guidance of the moving block 704 during displacement.

[0036] Reference Figure 2-4The angle adjustment mechanism 12 includes a mounting box 1201, which is fixedly mounted on the top of the support plate 9. A support 1202 is fixedly mounted on the top of the support plate 9. The nozzle 10 is rotatably connected between the mounting box 1201 and the support 1202. A linkage shaft 1203 is rotatably connected inside the mounting box 1201. One end of the linkage shaft 1203 is connected to the rotating end of the nozzle 10. A reciprocating motor 1204 is fixedly mounted inside the mounting box 1201. A driving bevel gear 1205 is fixedly mounted on the output end of the reciprocating motor 1204. A driven bevel gear 1206 is fixedly mounted on the outer surface of the linkage shaft 1203. The wheel 1205 and the driven bevel gear 1206 mesh with each other; the stirring blade 1503 has several sets of guide holes 1504 inside; by starting the reciprocating motor 1204, the driving bevel gear 1205 is driven to rotate and mesh with the driven bevel gear 1206, the driven bevel gear 1206 drives the linkage shaft 1203 to rotate, and the linkage shaft 1203 then drives the nozzle 10 to adjust the angle, thereby realizing the purpose of automatic angle adjustment of the nozzle 10; when the stirring blade 1503 stirs the material in the grouting cylinder 2, the turbulence of the grouting material in the grouting cylinder 2 is increased by the guide holes 1504, which is conducive to further improving the quality of the grouting material.

[0037] Working principle: After the vehicle body 1 moves to the working position, the grouting material is added into the grouting cylinder 2. The pump 6 is started to extract the grout in the grouting cylinder 2. Before entering the pump 6, the grout passes through the crushing box 501. The motor 504 is started simultaneously to drive the rotating shaft 505 and the crushing head 506 to rotate, crushing the cement blocks in the grout that have entered the crushing box 501. Then, the pump 6 delivers the relatively uniform crushed grout to the nozzle 10 through the telescopic hose 13. Finally, the nozzle 10 sprays the grout evenly onto the side wall and top wall of the hydraulic tunnel, greatly reducing the possibility of nozzle 10 clogging, reducing the number of downtime maintenance, and improving construction efficiency. The nozzle 10 is adjusted laterally by the lateral displacement mechanism 7, longitudinally by the longitudinal displacement mechanism 8, and angle by the angle adjustment mechanism 12, which facilitates the position adjustment of the nozzle 10 when spraying the side wall and top wall of the hydraulic tunnel.

[0038] Among them, the stirring shaft 1502 is driven to rotate by the motor 1501, and the stirring blade 1503 on the stirring shaft 1502 rotates accordingly, which can stir and mix the cement and admixture in the grouting cylinder 2, which is beneficial to maintain the uniformity of the grouting material. By controlling the reciprocating motor 702 to drive the threaded rod 703 to rotate in the forward or reverse direction, the moving block 704 moves laterally under the action of the thread of the threaded rod 703, which drives the mounting plate 705 and the longitudinal displacement mechanism 8 to move together, thereby realizing the purpose of automatic lateral displacement of the nozzle 10.

[0039] Meanwhile, the longitudinal displacement mechanism 8 is an electric push rod that automatically extends and retracts to push the support plate 9 longitudinally, thereby achieving the purpose of automatic longitudinal displacement of the nozzle 10; by starting the reciprocating motor 1204, the driving bevel gear 1205 is driven to rotate and mesh with the driven bevel gear 1206, the driven bevel gear 1206 drives the linkage shaft 1203 to rotate, and the linkage shaft 1203 then drives the nozzle 10 to adjust the angle, thereby achieving the purpose of automatic angle adjustment of the nozzle 10;

[0040] In addition, when the moving block 704 is displaced, the guide block 14 slides on the guide rod 11 through the linkage 4, which improves the guidance of the moving block 704 during displacement; when the material in the grouting cylinder 2 is stirred by the stirring blade 1503, the turbulence of the grouting material in the grouting cylinder 2 is increased through the guide hole 1504, which is conducive to further improving the quality of the grouting material.

[0041] The above description is merely a preferred embodiment of this application and is not intended to limit this application. Although this application has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this application should be included within the protection scope of this application.

Claims

1. A grouting spraying device for the sidewalls and roof of a hydraulic tunnel, comprising a vehicle body (1), characterized in that, A grouting cylinder (2) is fixedly installed on the top of the vehicle body (1). A bracket (3) is provided on one side of the grouting cylinder (2) on the top of the vehicle body (1). A crushing mechanism (5) is provided on the top of the bracket (3). The crushing mechanism (5) includes a crushing box (501). The crushing box (501) is fixedly installed on the top of the bracket (3). A support frame (502) is installed inside the crushing box (501). An installation groove (503) is opened inside the support frame (502). A motor (504) is fixedly installed inside the installation groove (503). The output end of the second motor (504) is fixedly installed with a rotating shaft (505). One end of the rotating shaft (505) is fixedly installed with a crushing head (506) through the support frame (502). A conveying pipe (507) is connected between the crushing box (501) and the grouting cylinder (2). A pump (6) is fixedly installed at the top of the bracket (3). The extraction end of the pump (6) is connected to the crushing box (501). A nozzle (10) is provided above the vehicle body (1). A telescopic hose (13) is connected between the pump (6) and the nozzle (10).

2. The grouting spraying equipment for the sidewalls and roof of a hydraulic tunnel according to claim 1, characterized in that, The top of the vehicle body (1) is provided with a lateral displacement mechanism (7), which is located on the side of the bracket (3) away from the grouting cylinder (2). The top of the lateral displacement mechanism (7) is provided with a longitudinal displacement mechanism (8), and a support plate (9) is fixedly installed on the top of the longitudinal displacement mechanism (8). The nozzle (10) is installed above the support plate (9), and an angle adjustment mechanism (12) is provided on one side of the nozzle (10).

3. The grouting spraying equipment for the sidewalls and roof of a hydraulic tunnel according to claim 1, characterized in that, The grouting cylinder (2) is equipped with a stirring mechanism (15). The stirring mechanism (15) includes a motor (1501), which is fixedly installed at the top of the grouting cylinder (2). A stirring shaft (1502) is fixedly installed at the output end of the motor (1501), and several sets of stirring blades (1503) are installed on the outer surface of the stirring shaft (1502).

4. The grouting spraying equipment for the sidewalls and top walls of a hydraulic tunnel according to claim 2, characterized in that, The lateral displacement mechanism (7) includes a rectangular frame (701), which is fixedly installed on the top of the vehicle body (1). A reciprocating motor (702) is fixedly installed inside the rectangular frame (701). A threaded rod (703) is fixedly installed at the output end of the reciprocating motor (702). The end of the threaded rod (703) away from the reciprocating motor (702) is rotatably connected to the inner wall of the rectangular frame (701). Two sets of moving blocks (704) are threadedly connected to the outer surface of the threaded rod (703). A through slot (706) is opened at the top of the rectangular frame (701). The top ends of the two sets of moving blocks (704) are fixedly installed with mounting plates (705) through the through slot (706). The longitudinal displacement mechanism (8) is fixedly installed at the top of the mounting plate (705).

5. A grouting spraying device for the sidewalls and roof of a hydraulic tunnel according to claim 2, characterized in that, The longitudinal displacement mechanism (8) is an electric push rod.

6. A grouting spraying device for the sidewalls and roof of a hydraulic tunnel according to claim 2, characterized in that, The angle adjustment mechanism (12) includes a mounting box (1201), which is fixedly installed on the top of the support plate (9). A support (1202) is fixedly installed on the top of the support plate (9). The nozzle (10) is rotatably connected between the mounting box (1201) and the support (1202). A linkage shaft (1203) is rotatably connected inside the mounting box (1201). One end of the linkage shaft (1203) is connected to the rotating end of the nozzle (10). A reciprocating motor (1204) is fixedly installed inside the mounting box (1201). A drive bevel gear (1205) is fixedly installed at the output end of the reciprocating motor (1204). A driven bevel gear (1206) is fixedly installed on the outer surface of the linkage shaft (1203). The drive bevel gear (1205) and the driven bevel gear (1206) mesh with each other.

7. A grouting spraying device for the sidewalls and roof of a hydraulic tunnel according to claim 4, characterized in that, Inside the rectangular frame (701), a guide rod (11) is fixedly installed below the threaded rod (703). Two sets of guide blocks (14) are slidably connected to the outer surface of the guide rod (11). A connecting rod (4) is installed between each set of guide blocks (14) and the corresponding moving block (704).

8. A grouting spraying device for the sidewalls and roof of a hydraulic tunnel according to claim 3, characterized in that, The stirring blade (1503) has several sets of guide holes (1504) inside.

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