Rapid concrete spraying construction device for tunnel initial support

Abstract

This utility model discloses a rapid concrete spraying construction device for tunnel initial support, relating to the field of tunnel construction technology. Specifically, it is a rapid concrete spraying construction device for tunnel initial support, including a connecting plate. Both the upper and lower ends of one side of the connecting plate are fixedly connected to a motor frame by screws. A dual-output shaft motor is fixedly installed inside the motor frame. In use, the spray gun is connected and fixed using a guide frame and fastening screws. By starting the dual-output shaft motor, the drive wheel and driven wheel move at a uniform speed on the guide rail, thereby uniformly spraying the walls from both sides to the top. During this process, the drive motor can be started to drive the spray gun to reciprocate, thus spraying the walls back and forth, achieving the required spray thickness. This reduces the use of large machinery. Furthermore, by setting the reciprocating speed of the dual-output shaft motor and the drive motor, the spray thickness becomes more uniform.

Description

Technical Field

[0001] This utility model relates to the field of tunnel construction technology, specifically to a rapid concrete spraying construction device for the initial support of a tunnel. Background Technology

[0002] For a long time, shotcrete materials and engineering technology have not received due attention, and their development level lags behind the needs of engineering technology development, especially compared with traditional mold-formed concrete materials and technologies, which are significantly lagging behind. In recent years, the key material for shotcrete material preparation—the accelerator for shotcrete—has developed rapidly, and the technology of alkali-free liquid accelerators has gradually matured, providing a material foundation for the high-performance development of shotcrete materials. At the same time, the shotcrete forming process is gradually shifting from dry spraying to wet spraying, and shotcrete equipment is gradually achieving localization and intelligent control, which has significantly improved the working environment and project quality of shotcrete.

[0003] During the initial support construction of tunnels, manual labor or large machinery is usually used in conjunction with concrete spraying equipment to spray the tunnel walls. However, manual operation not only leads to inconsistent concrete spraying thickness, but also usually results in 70% to 95% over-use of concrete. In addition to the fixed labor and machinery costs, there is a large amount of material loss, which is not conducive to cost control. Utility Model Content

[0004] The purpose of this invention is to provide a rapid concrete spraying construction device for tunnel initial support. By setting up a connecting plate, a dual-shaft motor, a drive wheel, a driven wheel, and a guide frame, it solves the problem that in the construction of tunnel initial support, manual or large-scale machinery is usually used in conjunction with a concrete spraying device to spray the tunnel walls. However, manual operation not only leads to inconsistent concrete spraying thickness, but also usually results in 70% to 95% over-use of concrete. In addition to the fixed labor and machinery costs, there is also a large material loss, which is not conducive to cost control.

[0005] To achieve the above objectives, this utility model is implemented through the following technical solution: a rapid concrete spraying construction device for tunnel initial support, comprising a connecting plate, wherein a motor frame is fixedly connected to both the upper and lower ends of one side of the connecting plate by screws, a dual-output shaft motor is fixedly installed inside the motor frame, the output end of the dual-output shaft motor is spline-connected to a rotating rod A, one end of the rotating rod A is spline-connected to a drive wheel, and a connecting rod is fixedly connected to the middle of one side of the connecting plate by bolts.

[0006] Preferably, one end of the connecting rod is fixedly connected to a sub-plate by bolts, and a rotating frame is fixedly connected to one side of both the connecting plate and the sub-plate.

[0007] Preferably, one of the rotating frames is rotatably connected to an A rotating rod via a bearing A, and the other rotating frame is rotatably connected to a B rotating rod via a bearing A, with driven wheels splined at both ends of the B rotating rod.

[0008] Preferably, a bracket is fixedly connected to the other side of the connecting plate, a drive motor is fixedly connected to one side of the bracket, and a guide rod is splined to the output end of the drive motor.

[0009] Preferably, the other end of the guide rod is rotatably connected to the other side of the bracket via a B bearing, a guide frame is fixedly connected to the middle of the guide rod, a threaded seat is fixedly connected to the surface of the guide frame, a fastening screw is threadedly connected to the inside of the threaded seat, and a fastening plate is rotatably connected to one end of the fastening screw.

[0010] Preferably, a guide rail is sandwiched between the drive wheel and the driven wheel, a metal frame is fixedly connected to one side of the guide rail, a base plate is fixedly connected to the bottom end of the metal frame, and a driving wheel is provided on the lower surface of the base plate.

[0011] This utility model provides a rapid concrete spraying construction device for the initial support of tunnels, which has the following beneficial effects:

[0012] In use, the spray gun is connected and fixed by a guide frame and fastening screws. By starting the dual-output shaft motor, the drive wheel and driven wheel move at a constant speed on the guide rail, allowing for uniform spraying of the walls from both sides to the top. During this process, the drive motor can be started to drive the spray gun to swing back and forth, spraying the walls repeatedly to achieve the required spray thickness. This reduces the need for large equipment. Furthermore, by setting the reciprocating speed of the dual-output shaft motor and drive motor, the spray thickness is made more uniform, and the excessive use of concrete is reduced. Attached Figure Description

[0013] To more clearly illustrate the embodiments of this utility model or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings in the following description are merely exemplary, and those skilled in the art can derive other embodiments based on the provided drawings without creative effort.

[0014] Figure 1 This is a schematic diagram of the structure of this utility model;

[0015] Figure 2 This is a structural disassembly diagram of the dual-output shaft motor of this utility model;

[0016] Figure 3 This is a structural disassembly diagram of the drive motor of this utility model;

[0017] Figure 4 This is a structural breakdown diagram of the guide frame of this utility model.

[0018] The image shows:

[0019] 1. Connecting plate; 2. Motor frame; 3. Dual output shaft motor; 4. A rotating rod; 5. Drive wheel; 6. Connecting rod; 7. Sub-plate; 8. Rotating frame; 9. B rotating rod; 10. Driven wheel; 11. Bracket; 12. Drive motor; 13. Guide rod; 14. Guide frame; 15. Threaded seat; 16. Fastening screw; 17. Fastening plate; 18. Guide rail; 19. Metal frame; 20. Base plate; 21. Moving wheel. Detailed Implementation

[0020] Exemplary embodiments will now be described in detail, examples of which are illustrated in the accompanying drawings. When the following description relates to the drawings, unless otherwise indicated, the same numerals in different drawings denote the same or similar elements. The embodiments described in the following exemplary embodiments do not represent all embodiments consistent with this disclosure. Rather, they are merely examples of apparatuses consistent with some aspects of this disclosure as detailed in the appended claims.

[0021] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the scope of protection of the present utility model.

[0022] like Figure 1 , Figure 2 , Figure 3 and Figure 4 As shown, this embodiment proposes a rapid concrete spraying construction device for tunnel initial support, including a connecting plate 1. Both the upper and lower ends of one side of the connecting plate 1 are fixedly connected to a motor frame 2 by screws. A dual-output shaft motor 3 is fixedly installed inside the motor frame 2. The output end of the dual-output shaft motor 3 is splined connected to a rotating rod A 4. One end of the rotating rod A 4 is splined connected to a drive wheel 5. A connecting rod 6 is fixedly connected to the middle of one side of the connecting plate 1 by bolts.

[0023] The drive wheel 5 is rotated by the dual-output shaft motor 3, thereby moving the position of the connecting plate 1.

[0024] One end of the connecting rod 6 is fixedly connected to the sub-plate 7 by bolts, and a rotating frame 8 is fixedly connected to one side of both the connecting plate 1 and the sub-plate 7.

[0025] One of the rotating frames 8 is rotatably connected to the A rotating rod 4 via a bearing A, and the other rotating frame 8 is rotatably connected to the B rotating rod 9 via a bearing A. The two ends of the B rotating rod 9 are splined connected to the driven wheel 10.

[0026] The connecting plate 1 and the auxiliary plate 7 are connected by the connecting rod 6, so that the drive wheel 5 and the driven wheel 10 form a clamping system. The connecting plate 1 is raised and lowered by starting the dual output shaft motor 3.

[0027] A bracket 11 is fixedly connected to the other side of the connecting plate 1, and a drive motor 12 is fixedly connected to one side of the bracket 11. A guide rod 13 is splinedly connected to the output end of the drive motor 12.

[0028] The other end of the guide rod 13 is rotatably connected to the other side of the bracket 11 via a B bearing. A guide frame 14 is fixedly connected to the middle of the guide rod 13. A threaded seat 15 is fixedly connected to the surface of the guide frame 14. A fastening screw 16 is threadedly connected to the inside of the threaded seat 15. A fastening plate 17 is rotatably connected to one end of the fastening screw 16.

[0029] The reciprocating rotation of the drive motor 12 drives the guide frame 14 to swing, and the spray gun is installed in the guide frame 14. The rotating fastening screw 16 fixes the spray gun through the fastening plate 17, keeping it moving with the equipment and achieving precise spraying.

[0030] A guide rail 18 is sandwiched between the drive wheel 5 and the driven wheel 10. A metal frame 19 is fixedly connected to one side of the guide rail 18. A base plate 20 is fixedly connected to the bottom end of the metal frame 19. A drive wheel 21 is provided on the lower surface of the base plate 20.

[0031] The connecting plate 1 moves along the guide rail 18, ensuring that the spray gun can accurately spray the wall at various positions and maintain the uniformity of the spray. At the same time, the spray position on the wall can be adjusted by traction from other equipment or manual pushing. It is simple to use and can be reused, reducing material consumption and the cost of large mechanical equipment.

[0032] Specifically, the concrete spraying rapid construction device used for tunnel initial support operates as follows: During use, the spray gun is connected and fixed by the guide frame 14 and fastening screw 16. By starting the dual-axis motor 3, the drive wheel 5 and driven wheel 10 can move at a uniform speed on the guide rail 18, thereby uniformly spraying the walls from both sides to the top. During this process, the drive motor 12 can be started to drive the spray gun to swing back and forth, thereby spraying the walls back and forth to achieve the required spray thickness. This reduces the use of large machinery. Furthermore, by setting the reciprocating speed of the dual-axis motor 3 and the drive motor 12, the spray thickness is made more uniform, and the excessive use of concrete is reduced.

[0033] All electrical components mentioned in this article are connected to an external main controller and 220V AC mains power. The main controller can be a conventional known device such as a computer for control. The detailed description of known functions and components is omitted in the specific implementation of this disclosure. To ensure the compatibility of the device, the operating methods used are consistent with the parameters of commercially available instruments.

[0034] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A rapid concrete spraying construction device for tunnel initial support, comprising a connecting plate (1), characterized in that: The upper and lower ends of one side of the connecting plate (1) are fixedly connected to the motor frame (2) by screws. The motor frame (2) is fixedly installed with a dual-output shaft motor (3). The output end of the dual-output shaft motor (3) is spline-connected to the A rotating rod (4). One end of the A rotating rod (4) is spline-connected to the drive wheel (5). The middle of one side of the connecting plate (1) is fixedly connected to the connecting rod (6) by bolts.

2. The rapid concrete spraying construction device for tunnel initial support according to claim 1, characterized in that: One end of the connecting rod (6) is fixedly connected to a sub-plate (7) by bolts, and a rotating frame (8) is fixedly connected to one side of both the connecting plate (1) and the sub-plate (7).

3. The rapid concrete spraying construction device for tunnel initial support according to claim 2, characterized in that: One of the rotating frames (8) is rotatably connected to the A rotating rod (4) via a bearing A, and the other rotating frame (8) is rotatably connected to the B rotating rod (9) via a bearing A. The two ends of the B rotating rod (9) are splined to the slave wheel (10).

4. The rapid concrete spraying construction device for tunnel initial support according to claim 1, characterized in that: A bracket (11) is fixedly connected to the other side of the connecting plate (1), and a drive motor (12) is fixedly connected to one side of the bracket (11). A guide rod (13) is splined to the output end of the drive motor (12).

5. The rapid concrete spraying construction device for tunnel initial support according to claim 4, characterized in that: The other end of the guide rod (13) is rotatably connected to the other side of the bracket (11) via a B bearing. A guide frame (14) is fixedly connected to the middle of the guide rod (13). A threaded seat (15) is fixedly connected to the surface of the guide frame (14). A fastening screw (16) is threaded inside the threaded seat (15). A fastening plate (17) is rotatably connected to one end of the fastening screw (16).

6. The rapid concrete spraying construction device for tunnel initial support according to claim 3, characterized in that: A guide rail (18) is sandwiched between the drive wheel (5) and the driven wheel (10). A metal frame (19) is fixedly connected to one side of the guide rail (18). A base plate (20) is fixedly connected to the bottom end of the metal frame (19). A driving wheel (21) is provided on the lower surface of the base plate (20).

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