Grouting device for shield tunnel

Abstract

The utility model discloses a grouting device for a shield tunnel, relates to the field of grouting equipment, and adopts the technical scheme that the grouting device comprises a base, the bottom of the base is connected with a moving mechanism, one side of the base is rotatably connected with a first rotating shaft, the outer side of the first rotating shaft is fixedly connected with a rotating frame, and the middle position of the outer side of the first rotating shaft is fixedly connected with a first worm gear; the top of the first worm gear is in meshed connection with a first worm, the first worm is rotationally connected with the base, sliding rods are symmetrically and slidably connected into the rotating frame, and the tops of the sliding rods are fixedly connected with a U-shaped base. The grouting device has the advantages that the angle of the grouting pipe can be adjusted when grouting is conducted on the top wall and the side wall of a tunnel, the grouting requirements of shield tunnel walls with different angles are met, and therefore the applicability of the whole grouting device is effectively improved.

Description

Technical Field

[0001] The utility model relates to the field of grouting equipment, in particular to a grouting device for shield tunnels. Background Art

[0002] The shield method is a fully mechanized construction method in the subaqueous tunneling method. It is to push the shield machine in the ground, prevent the surrounding rock from collapsing into the tunnel by the shield shell and segment support, and at the same time use a cutting device to excavate the soil in front of the excavation face, and transport it out of the tunnel by an earth excavation machine to form a tunnel structure. A mechanized construction method. During tunnel construction, grouting construction is required to increase the hardness of the soil layer.

[0003] The current grouting device for shield tunnels, as described in the patent with publication number CN218030212U, includes a base. One side of the base is hinged to a plug board through a rotating shaft. The plug board is inserted with a housing. The housing is slidably connected to the plug board. A telescopable telescopic member is fixed on the top surface of the housing. The telescopic direction of the telescopic end of the telescopic member is parallel to the top surface of the housing and perpendicular to the rotating shaft, and the telescopic end of the telescopic member faces the rotating shaft. A through hole matching the size of the grouting cylinder is provided at one end of the top surface of the housing away from the rotating shaft. The housing is provided with a grouting positioning device at the position of the through hole.

[0004] Regarding the above related technologies, the inventor believes that both the plug board and the housing rotate around the rotating shaft, so that when it is necessary to grout the top of the shield tunnel, the grouting cylinder cannot be adjusted to a vertically upward state, so as to satisfy the grouting operation on the top of the shield tunnel, and thus the applicability of the entire grouting device is poor. Summary of the Utility Model

[0005] In view of the above technical problems, the utility model provides a grouting device for shield tunnels.

[0006] The technical solution is as follows: it includes a base. A moving mechanism is connected to the bottom of the base. One side of the base is rotatably connected to a first rotating shaft. A rotating frame is fixedly connected to the outside of the first rotating shaft. A first worm gear is fixedly connected to the middle position of the outside of the first rotating shaft. The top of the first worm gear is meshed with a first worm. The first worm is rotatably connected to the base. The inside of the rotating frame is symmetrically and slidably connected with sliding rods. The top of the sliding rods is fixedly connected with a U-shaped seat;

[0007] Both sides of the rotating frame are fixedly connected with first oil cylinders, the output ends of the two groups of first oil cylinders are fixedly connected with the U-shaped seat, a second rotating shaft is rotatably connected inside the U-shaped seat, a rotating plate is fixedly connected to the outside of the second rotating shaft, a second worm gear is fixedly connected to the middle position of the outside of the second rotating shaft, and a second worm is meshed and connected to one side of the second worm gear. The second worm is rotatably connected with the U-shaped seat;

[0008] The bottom of the U-shaped seat is fixedly connected with a stepping motor, the output end of the stepping motor is fixedly connected with the second worm, a through hole is formed inside the rotating plate, a grouting pipe penetrates through the through hole, a push plate is detachably connected to the outside of the grouting pipe, and second oil cylinders are symmetrically and fixedly connected between the push plate and the rotating plate.

[0009] Preferably, the moving mechanism includes first rollers rotatably connected to the four corners of the bottom of the base, and second rollers are symmetrically and rotatably connected to one side of the rotating frame away from the push plate.

[0010] Preferably, adjusting screws are symmetrically and threadedly connected inside the base, and abutting plates are fixedly connected to the bottoms of the two groups of adjusting screws.

[0011] Preferably, a push rod is fixedly connected to one side of the top of the base away from the rotating frame, and a counterweight block is fixedly connected to the top of the base.

[0012] Preferably, a groove is formed at the top of the push plate, the grouting pipe penetrates through the groove, a limiting ring is fixedly connected to the outside of the grouting pipe, and the limiting ring abuts against the side wall of the push plate close to the rotating plate.

[0013] The beneficial effects brought by the technical solution provided by the embodiment of the present invention are as follows: Through the mutual cooperation of the stepping motor, the second worm gear and the second rotating shaft, when the rotating frame is adjusted to the vertical state, the stepping motor can be started, so that the stepping motor can drive the second worm to rotate when starting to work. When the second worm rotates, it can drive the second worm gear, the second rotating shaft and the rotating plate to rotate, thereby driving the grouting pipe to rotate accordingly until the angle of the grouting pipe is adjusted to be the same as that of the grouting hole to be grouted. Then, the first oil cylinder can be started, so that the first oil cylinder can drive the U-shaped seat, the rotating plate and the grouting pipe to move up and down when starting to work, thereby adjusting the height of the grouting pipe until the grouting pipe is adjusted to correspond to the position of the grouting hole, so as to meet the adjustment of the angle of the grouting pipe when grouting the top wall and side wall of the tunnel, and adapt to the grouting requirements of shield tunnel walls at different angles, thereby effectively improving the applicability of the entire grouting device. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a schematic diagram of the overall structure of the embodiment of the present invention.

[0015] Figure 2 is Figure 1 an enlarged schematic view of part A of

[0016] Figure 3 is a schematic structural view of the base of the embodiment of the present utility model.

[0017] Among them, the reference numerals are: 1, base; 2, counterweight; 3, moving mechanism; 4, first rotating shaft; 5, first worm gear; 6, first worm; 7, rotating frame; 8, sliding rod; 9, push rod; 10, U-shaped seat; 11, rotating plate; 12, push plate; 13, grouting pipe; 14, limiting ring; 15, second oil cylinder; 16, second rotating shaft; 17, second worm gear; 18, second worm; 19, stepping motor; 20, through hole; 21, first oil cylinder; 22, groove; 301, first roller; 302, second roller; 303, adjusting screw; 304, abutting plate. Specific embodiments

[0018] In order to make the purpose, technical solutions and advantages of the present utility model clearer, the following further details the present utility model in conjunction with the accompanying drawings and embodiments. Of course, the specific embodiments described herein are only used to explain the present utility model and are not used to limit the present utility model.

[0019] It should be noted that, without conflict, the embodiments in the present utility model and the features in the embodiments can be combined with each other.

[0020] In the description of the present utility model, it should be understood that the orientation or positional relationship indicated by the terms "center", "longitudinal", "transverse", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. is based on the orientation or positional relationship shown in the accompanying drawings, and is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus cannot be understood as a limitation of the present utility model. In addition, the terms "first", "second", etc. are only used for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Thus, the features defined with "first", "second", etc. may explicitly or implicitly include one or more of such features. In the description of the present utility model, unless otherwise specified, the meaning of "a plurality" is two or more.

[0021] In the description of the creation of the present utility model, it should be noted that unless otherwise clearly specified and defined, the terms "installation", "connection", and "linkage" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, and it can be the communication inside two components. For those of ordinary skill in the art, the specific meanings of the above terms in the creation of the present utility model can be understood according to specific circumstances.

[0022] Embodiment 1

[0023] See Figures 1 to 3 , the present utility model provides a grouting device for shield tunnels, including a base 1. A moving mechanism 3 is connected to the bottom of the base 1. The moving mechanism 3 includes first rollers 301 rotatably connected to the four corners of the bottom of the base 1. The arrangement of the first rollers 301 can facilitate the movement of the base 1. A first rotating shaft 4 is rotatably connected to one side of the base 1. A rotating frame 7 is fixedly connected to the outer side of the first rotating shaft 4. Second rollers 302 are symmetrically rotatably connected to the side of the rotating frame 7 away from the push plate 12. The arrangement of the second rollers 302 can contact the ground when the rotating frame 7 rotates to the horizontal, so as to facilitate the movement of the rotating frame 7. Adjusting screws 303 are symmetrically and threadedly connected inside the base 1. Bottom plates 304 are fixedly connected to the bottoms of the two groups of adjusting screws 303. During grouting operations, the adjusting screws 303 can be rotated so that the adjusting screws 303 can rotate to contact the ground, thereby restricting the rolling of the first rollers 301. A push rod 9 is fixedly connected to the top of the base 1 away from the rotating frame 7. The arrangement of the push rod 9 can facilitate the pushing of the entire grouting device for movement.

[0024] A first worm gear 5 is fixedly connected to the middle position of the outer side of the first rotating shaft 4. A first worm 6 is meshed and connected to the top of the first worm gear 5. The first worm 6 is rotatably connected to the base 1. When the first worm 6 rotates, it can drive the first worm gear 5, the first rotating shaft 4, and the rotating frame 7 to rotate, thereby realizing the adjustment of the angle of the rotating frame 7. At the same time, by using the self-locking property of the transmission between the first worm gear 5 and the first worm 6, the angle of the rotating frame 7 can be fixed after the angle adjustment of the rotating frame 7 is completed. A counterweight 2 is fixedly connected to the top of the base 1. The arrangement of the counterweight 2 can increase the stability of the base 1 to reduce the probability of the base 1 tipping over. Sliding rods 8 are symmetrically and slidably connected inside the rotating frame 7. A U-shaped seat 10 is fixedly connected to the top of the sliding rods 8. First oil cylinders 21 are fixedly connected to both sides of the rotating frame 7. The output ends of the two groups of first oil cylinders 21 are fixedly connected to the U-shaped seat 10. When the first oil cylinders 21 rotate, they can drive the U-shaped seat 10 to move up and down to realize the adjustment of the height of the U-shaped seat 10.

[0025] A second rotating shaft 16 is rotatably connected inside the U-shaped seat 10. A rotating plate 11 is fixedly connected to the outer side of the second rotating shaft 16. A second worm gear 17 is fixedly connected to the middle position on the outer side of the second rotating shaft 16. A second worm 18 is meshed and connected to one side of the second worm gear 17. The second worm 18 is rotatably connected to the U-shaped seat 10. When the second worm 18 rotates, it can drive the second worm gear 17, the second rotating shaft 16 and the rotating plate 11 to rotate, so as to realize the adjustment of the angle of the rotating plate 11. A stepping motor 19 is fixedly connected to the bottom of the U-shaped seat 10. The output end of the stepping motor 19 is fixedly connected to the second worm 18. When the stepping motor 19 starts to work, it can drive the second worm 18 to rotate. A through hole 20 is formed inside the rotating plate 11. A grouting pipe 13 penetrates through the inside of the through hole 20. The arrangement of the through hole 20 is used to guide the sliding of the grouting pipe 13.

[0026] A push plate 12 is detachably connected to the outer side of the grouting pipe 13. A groove 22 is formed at the top of the push plate 12. The grouting pipe 13 penetrates through the groove 22. A limiting ring 14 is fixedly connected to the outer side of the grouting pipe 13. The limiting ring 14 abuts against the side wall of the push plate 12 close to the rotating plate 11. After the grouting pipe 13 penetrates through the through hole 20, the grouting pipe 13 can be placed inside the groove 22, and the limiting ring 14 is abutted against the side of the push plate 12 close to the rotating plate 11. Second oil cylinders 15 are symmetrically and fixedly connected between the push plate 12 and the rotating plate 11, so that when the second oil cylinders 15 contract, they can drive the push plate 12 to move towards one side of the rotating plate 11. At the same time, the push plate 12 pushes the limiting ring 14 and the grouting pipe 13 to move towards one side of the rotating plate 11, so as to facilitate the insertion of the grouting pipe 13 into the grouting hole of the shield tunnel.

[0027] When the utility model is in use, when it is necessary to grout the side wall or the top wall of the shield tunnel wall, the first worm 6 can be rotated, so that when the first worm 6 rotates, it can drive the first worm gear 5, the first rotating shaft 4 and the rotating frame 7 to rotate until the rotating frame 7 is rotated and adjusted to the vertical state. Then, the stepping motor 19 can be started, so that when the stepping motor 19 starts to work, it can drive the second worm 18 to rotate. When the second worm 18 rotates, it can drive the second worm gear 17, the second rotating shaft 16 and the rotating plate 11 to rotate, thereby driving the grouting pipe 13 to rotate accordingly until the grouting pipe 13 is adjusted to the same angle as the grouting hole to be grouted. Then, the first oil cylinder 21 can be started, so that when the first oil cylinder 21 starts to work, it can drive the U-shaped seat 10, the rotating plate 11 and the grouting pipe 13 to move up and down, thereby adjusting the height of the grouting pipe 13 until the grouting pipe 13 is adjusted to correspond to the position of the grouting hole. Then, the grouting pipe 13 can be connected to the output pipeline of the grouting machine, and two groups of second oil cylinders 15 can be started, so that the two groups of second oil cylinders 15 drive the limiting ring 14 and the grouting pipe 13 to move towards the grouting hole until the grouting pipe 13 is inserted into the grouting hole. Then, the grouting machine can be started, so that the grouting machine injects the concrete mortar into the grouting hole through the grouting pipe 13.

[0028] The above are only the preferred embodiments of the present utility model, and are not intended to limit the present utility model. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present utility model shall be included in the protection scope of the present utility model.

Claims

1. A grouting device for a shield tunnel, characterized in that: The invention comprises a base (1), wherein the bottom of the base (1) is connected to a moving mechanism (3), one side of the base (1) is rotatably connected to a first rotating shaft (4), the outer side of the first rotating shaft (4) is fixedly connected to a rotating frame (7), a first worm gear (5) is fixedly connected to the middle position of the outer side of the first rotating shaft (4), the top of the first worm gear (5) is meshingly connected to a first worm (6), the first worm (6) is rotatably connected to the base (1), a sliding rod (8) is symmetrically slidably connected to the inside of the rotating frame (7), and the top of the sliding rod (8) is fixedly connected to a U-shaped seat (10); Both sides of the rotating frame (7) are fixedly connected to first oil cylinders (21), the output ends of the two groups of the first oil cylinders (21) are fixedly connected to the U-shaped seat (10), the interior of the U-shaped seat (10) is rotatably connected to a second rotating shaft (16), the outer side of the second rotating shaft (16) is fixedly connected to a rotating plate (11), a second worm gear (17) is fixedly connected to the middle position of the outer side of the second rotating shaft (16), one side of the second worm gear (17) is meshingly connected to a second worm (18), and the second worm (18) is rotatably connected to the U-shaped seat (10); A stepper motor (19) is fixedly connected to the bottom of the U-shaped seat (10), and an output end of the stepper motor (19) is fixedly connected to the second worm (18). A through hole (20) is provided inside the rotating plate (11), and a grouting pipe (13) passes through the through hole (20). A push plate (12) is detachably connected to the outside of the grouting pipe (13), and a second oil cylinder (15) is symmetrically fixedly connected between the push plate (12) and the rotating plate (11).

2. The grouting device for a shield tunnel according to claim 1, characterized in that: The moving mechanism (3) comprises first rollers (301) rotatably connected to the four corners of the bottom of the base (1), and a second roller (302) is symmetrically rotatably connected to one side of the rotating frame (7) away from the push plate (12).

3. The grouting device for a shield tunnel according to claim 2, characterized in that: The base (1) is symmetrically threaded with adjusting screws (303) inside, and the bottoms of the two groups of adjusting screws (303) are fixedly connected with abutment plates (304).

4. The grouting device for a shield tunnel according to claim 3, characterized in that: A push rod (9) is fixedly connected to the side of the top of the base (1) away from the rotating frame (7), and a counterweight (2) is fixedly connected to the top of the base (1).

5. The grouting device for a shield tunnel according to claim 2, characterized in that: A groove (22) is formed on the top of the push plate (12), the grouting pipe (13) passes through the groove (22), and a limit ring (14) is fixedly connected to the outer side of the grouting pipe (13), and the limit ring (14) abuts against a side wall of the push plate (12) close to the rotating plate (11).

Images