A shield tunnel inverted arch filling and chiseling device

By combining a mechanical rotating seat and an electric push rod, along with precise positioning by a panoramic visual recognition camera and rotation by an electric motor, the problem of the chiseling head not fitting properly with the tunnel arch surface has been solved, improving the chiseling effect and the working environment.

CN224326247UActive Publication Date: 2026-06-05CHINA RAILWAY NO 8 ENG GRP CO LTD +2

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
CHINA RAILWAY NO 8 ENG GRP CO LTD
Filing Date
2025-08-25
Publication Date
2026-06-05

AI Technical Summary

Technical Problem

When facing uneven tunnel invert arch surfaces, the existing shield tunnel invert filling and roughening devices are prone to poor contact between the roughening head and the concrete surface, resulting in excessive or insufficient local pressure and reducing the roughening effect.

Method used

The system employs a combination of a mechanical rotating seat to drive the main support arm and an electric push rod. A panoramic vision recognition camera precisely locates the chiseling position, and the rotation of the electric motor and chisel head ensures that the chisel head is perpendicular to the tunnel arch surface. It is also equipped with a dust suppression mechanism to reduce dust.

Benefits of technology

It achieves a tight fit between the chisel head and the concrete surface, avoiding uneven local pressure and improving the chiseling effect. It also improves the working environment inside the tunnel through the dust suppression mechanism.

✦ Generated by Eureka AI based on patent content.

Smart Images

  • Figure CN224326247U_ABST
    Figure CN224326247U_ABST
Patent Text Reader

Abstract

The utility model relates to electric power engineering technical field, concretely is a kind of shield tunnel inverted arch filling gouging device: including tunnel mobile trolley, the surface of the tunnel mobile trolley is provided with gouging mechanism, the gouging mechanism includes mechanical rotary seat, and the mechanical rotary seat is fixedly connected on the surface of tunnel mobile trolley.The utility model utilizes panoramic visual identification camera head to gather tunnel inverted arch camber surface data, and mechanical rotary seat drives support main arm and second electric push rod rotation, and second electric push rod drives first electric push rod rotation, makes gouging head align gouging position;Support pipe piston rod promotes motor rotation, makes gouging head perpendicular to the camber surface of gouging point position;First electric push rod drives movable support to move, sends gouging head to specific gouging point position, and then rotates operation by motor driving gouging head, can be adjusted according to inverted arch actual condition, avoid not close tightly, uneven pressure problem, improve gouging effect.
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Description

Technical Field

[0001] This utility model relates to the technical field of tunnel construction equipment, specifically a device for roughening and filling the invert arch of a shield tunnel. Background Technology

[0002] The shield tunnel invert filling roughening device is a piece of equipment used in shield tunnel construction to roughen the surface of the invert filling concrete. The purpose of roughening is to increase the roughness of the concrete surface, improve the bonding force between the old and new concrete in subsequent construction, and ensure the integrity and stability of the tunnel structure.

[0003] Because the tunnel invert is curved, and the existing shield tunnel invert filling and roughening device can move the roughening head along the curved surface of the tunnel for construction, the overall curved surface of the tunnel invert is uneven, resulting in the roughening head not adhering tightly to the concrete surface, and local pressure being too high or too low, which greatly reduces the roughening effect. Utility Model Content

[0004] The purpose of this utility model is to provide a shield tunnel invert arch filling and roughening device to solve the problems mentioned in the background art, such as the unevenness of the overall arc surface of the existing tunnel invert arch, the poor fit between the roughening head and the concrete surface, and the excessive or insufficient local pressure, which greatly reduces the roughening effect.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a shield tunnel invert filling and roughening device, comprising a tunnel moving trolley, a main controller fixedly connected to the surface of the tunnel moving trolley, a roughening mechanism provided on the surface of the tunnel moving trolley, the roughening mechanism comprising a mechanical rotating seat fixedly connected to the surface of the tunnel moving trolley, a supporting main arm fixedly connected to the rotating end of the mechanical rotating seat, a first electric push rod rotatably connected to the surface of the supporting main arm, a second electric push rod rotatably connected to the rotating end of the mechanical rotating seat, a piston rod of the second electric push rod rotatably connected to one end of the first electric push rod, a movable bracket fixedly connected to the piston rod of the first electric push rod, a motor rotatably connected to the surface of the movable bracket, a roughening head fixedly connected to the output shaft of the motor, a third electric push rod rotatably connected to the bottom of the movable bracket, a piston rod of the third electric push rod rotatably connected to the bottom of the motor, and a panoramic visual recognition camera fixedly mounted on the surface of the motor.

[0006] Preferably, a dust suppression mechanism is provided on the surface of the tunnel moving trolley. The dust suppression mechanism includes a water tank, which is fixedly connected to the surface of the tunnel moving trolley. A water pump is fixedly connected to the surface of the water tank. A connecting hose is fixedly connected to the output end of the water pump. A support pipe is fixedly connected to the surface of the connecting hose. A dust suppression pipe is fixedly connected to the surface of the support pipe. A dust suppression nozzle is fixedly connected to the surface of the dust suppression pipe. The support pipe is fixedly connected to the surface of the movable support.

[0007] Preferably, the mechanical rotating seat drives the main support arm and the second electric push rod to rotate via the rotating end, while the main support arm and the second electric push rod simultaneously drive the first electric push rod to rotate, and the second electric push rod pushes the first electric push rod to rotate on the main support arm via the piston rod.

[0008] Preferably, the first electric push rod pushes the movable bracket to move in a straight line via the piston rod, and the movable bracket drives the electric motor and the chisel head to move synchronously.

[0009] Preferably, the third electric push rod drives the electric motor to rotate via the piston rod, and the electric motor drives the chisel head to rotate synchronously. The electric motor drives the chisel head to rotate via the output shaft.

[0010] Preferably, the support tube is U-shaped, there are two sets of dust-suppressing tubes symmetrically distributed on both sides of the chisel head, and multiple sets of dust-suppressing nozzles are arranged linearly and evenly on the dust-suppressing tubes.

[0011] Preferably, the water tank contains a water source, and the water pump inputs the water source inside the water tank into the support pipe through a connecting hose. The water source inside the support pipe is then sprayed out as water mist through a dust suppression nozzle via a dust suppression pipe.

[0012] Compared with the prior art, the beneficial effects of this utility model are:

[0013] 1. This chiseling device rotates the main support arm and the second electric push rod through the rotating end of the mechanical rotating seat. The piston rod of the second electric push rod drives the first electric push rod to rotate, aligning the chiseling head with the chiseling position on the tunnel invert. The piston rod of the support tube drives the motor to rotate, making the chiseling head perpendicular to the arc surface of the tunnel invert at the chiseling point. Then, the piston rod of the first electric push rod drives the movable bracket to move, moving the chiseling head to the specific chiseling point on the tunnel invert. At this time, the output shaft of the motor drives the chiseling head to rotate, enabling the chiseling head to chisel. This allows for operation according to the actual conditions of the tunnel invert, avoiding situations such as the chiseling head not adhering tightly to the concrete surface, excessive or insufficient local pressure, and greatly improving the chiseling effect.

[0014] 2. The chipping device uses a water pump to input water from the water tank into the connecting hose. The connecting hose then inputs the water through two sets of support pipes to the dust suppression nozzles. The dust suppression nozzles convert the water into water mist and spray it on both sides of the movable support, thereby reducing the dust generated by the movable support inside the tunnel and improving the quality of the working environment inside the tunnel. Attached Figure Description

[0015] Figure 1 This is a three-dimensional front view of the structure of this utility model;

[0016] Figure 2 This is a side view of the structure of this utility model;

[0017] Figure 3 This is a top view of the structure of this utility model;

[0018] Figure 4 This is a rear perspective three-dimensional schematic diagram of the chiseling mechanism of this utility model;

[0019] Figure 5 This is a three-dimensional schematic diagram of the movable support structure of this utility model, viewed from the rear and from below.

[0020] In the diagram: 1. Tunnel moving trolley; 11. Main controller; 2. Mechanical rotating seat; 21. Support main arm; 22. First electric push rod; 23. Second electric push rod; 24. Movable support; 25. Electric motor; 26. Chisel head; 27. Third electric push rod; 28. Panoramic vision recognition camera; 3. Water tank; 31. Water pump; 32. Connecting hose; 33. Support pipe; 34. Dust suppression pipe; 35. Dust suppression nozzle. Detailed Implementation

[0021] Please see Figure 1-5 One embodiment provided by this utility model:

[0022] A shield tunnel invert filling and roughening device includes a tunnel moving trolley 1. A main controller 11 is fixedly connected to the surface of the tunnel moving trolley 1. The main controller 11 is the control core of the entire device, responsible for receiving, processing, and sending various commands. A roughening mechanism is provided on the surface of the tunnel moving trolley 1. The roughening mechanism includes a mechanical rotating seat 2, which is fixedly connected to the surface of the tunnel moving trolley 1. A supporting main arm 21 is fixedly connected to the rotating end of the mechanical rotating seat 2. A first electric push rod 22 is rotatably connected to the surface of the supporting main arm 21. A second electric push rod 23 is rotatably connected to the rotating end of the mechanical rotating seat 2. The piston rod of the second electric push rod 23 is rotatably connected to one end of the first electric push rod 22. A movable bracket 24 is fixedly connected to the piston rod of the first electric push rod 22. A motor 25 is rotatably connected to the surface of the movable bracket 24. A motor 25 is fixedly connected to the output shaft of the motor 25. The chisel head 26 is connected to the bottom of the movable bracket 24, which is rotatably connected to a third electric push rod 27. The piston rod of the third electric push rod 27 is rotatably connected to the bottom of the motor 25. A panoramic vision recognition camera 28 is fixedly installed on the surface of the motor 25. The chisel mechanism collects data on the overall arc surface of the tunnel arch through the panoramic vision recognition camera 28. The main controller 11 and the panoramic vision recognition camera 28 are wirelessly connected. The main controller 11 has a built-in image processor. The image processor analyzes and processes the collected images. By recognizing pre-set marker points, feature lines or specific patterns, it determines the deviation of the chisel machine from the target position. The main controller 11 has a computing device inside, and the software of the computing device generates control commands based on the analysis results to drive the drive device of the chisel mechanism to move, so that the chisel head 26 can accurately reach the chisel position and ensure the chisel effect.

[0023] Furthermore, a dust suppression mechanism is installed on the surface of the tunnel mobile trolley 1. The dust suppression mechanism includes a water tank 3, which is fixedly connected to the surface of the tunnel mobile trolley 1. A water pump 31 is fixedly connected to the surface of the water tank 3. A connecting hose 32 is fixedly connected to the output end of the water pump 31. A support pipe 33 is fixedly connected to the surface of the connecting hose 32. A dust suppression pipe 34 is fixedly connected to the surface of the support pipe 33. A dust suppression nozzle 35 is fixedly connected to the surface of the dust suppression pipe 34. The support pipe 33 is fixedly connected to the surface of the movable support 24. During use, the chisel head 26 will generate a large amount of dust. This dust suppression mechanism reduces dust by spraying, thereby improving the quality of the working environment inside the tunnel.

[0024] Furthermore, the mechanical rotating seat 2 drives the main support arm 21 and the second electric push rod 23 to rotate through the rotating end. The mechanical rotating seat 2 has a built-in motor and gear transmission device to drive the rotating end to rotate automatically. At the same time, the main support arm 21 and the second electric push rod 23 drive the first electric push rod 22 to rotate. The first electric push rod 22 drives the motor 25 and the chisel head 26 to rotate horizontally in sync. The second electric push rod 23 pushes the first electric push rod 22 to rotate on the main support arm 21 through the piston rod. At this time, the first electric push rod 22 drives the motor 25 and the chisel head 26 to rotate vertically in sync.

[0025] Furthermore, the first electric push rod 22 pushes the movable support 24 to move in a straight line through the piston rod. The movable support 24 drives the electric motor 25 and the chisel head 26 to move synchronously. The movable support 24 can precisely drive the chisel head 26 to the position for chiseling the tunnel invert arch through the piston rod.

[0026] Furthermore, the third electric push rod 27 drives the motor 25 to rotate via the piston rod. The motor 25 drives the chisel head 26 to rotate synchronously. The motor 25 drives the chisel head 26 to rotate via the output shaft, which can rotate the chisel head 26 to be perpendicular to the arc surface of the tunnel invert, ensuring the working angle of the chisel head 26 on the tunnel invert.

[0027] Furthermore, the support pipe 33 is U-shaped, and there are two sets of dust-suppressing pipes 34, which are symmetrically distributed on both sides of the chisel head 26. There are multiple sets of dust-suppressing nozzles 35, which are linearly and evenly arranged on the dust-suppressing pipes 34. The multiple sets of dust-suppressing nozzles 35 turn the water source into water mist to remove the dust generated by the chisel head 26.

[0028] Furthermore, the water tank 3 is filled with water, and the top of the water tank 3 is also equipped with a water inlet pipe for replenishing the water source. The water pump 31 inputs the water source inside the water tank 3 into the support pipe 33 through the connecting hose 32. The water source inside the support pipe 33 is sprayed out as water mist through the dust suppression pipe 34 and the dust suppression nozzle 35. Since the support pipe 33 moves synchronously with the movable bracket 24, it ensures that the water mist from the dust suppression nozzle 35 is always on both sides of the movable bracket 24. The first electric push rod 22 can always ensure water supply while the support pipe 33 moves flexibly.

[0029] Working principle: The panoramic visual recognition camera 28 collects data on the arc surface of the tunnel invert. At this time, the rotating end of the mechanical rotating seat 2 drives the main support arm 21 and the second electric push rod 23 to rotate. The piston rod of the second electric push rod 23 drives the first electric push rod 22 to rotate, so that the chisel head 26 is aligned with the chisel position of the tunnel invert. The piston rod of the support tube 33 drives the motor 25 to rotate, so that the chisel head 26 is perpendicular to the arc surface of the tunnel invert at the chisel point. Then, the piston rod of the first electric push rod 22 drives the movable bracket 24 to move, moving the chisel head 26 to the specific chisel point of the tunnel invert. At this time, the output shaft of the motor 25 drives the chisel head 26 to rotate, so that the chisel head 26 chisels. It can operate according to the actual situation of the tunnel invert, avoiding the situation that the chisel head 26 is not tightly attached to the concrete surface, or that the local pressure is too large or too small, which greatly reduces the chisel effect.

[0030] Water tank 3 is filled with water. During the roughening process of roughening head 26, water pump 31 inputs water from water tank 3 into connecting hose 32. Connecting hose 32 inputs water into dust suppression nozzle 35 through two sets of support pipes 33. Dust suppression nozzle 35 converts water into water mist and sprays it on both sides of movable support 24, thereby reducing dust generated by movable support 24 inside the tunnel and improving the quality of the working environment inside the tunnel.

Claims

1. A device for filling and roughening the invert arch of a shield tunnel, characterized in that: The system includes a tunnel moving trolley, on which a main controller is fixedly connected. A chiseling mechanism is provided on the surface of the tunnel moving trolley, comprising a mechanical rotating seat fixedly connected to the surface of the tunnel moving trolley. A supporting main arm is fixedly connected to the rotating end of the mechanical rotating seat. A first electric push rod is rotatably connected to the surface of the supporting main arm. A second electric push rod is rotatably connected to the rotating end of the mechanical rotating seat. The piston rod of the second electric push rod is rotatably connected to one end of the first electric push rod. A movable bracket is fixedly connected to the piston rod of the first electric push rod. A motor is rotatably connected to the surface of the movable bracket. A chiseling head is fixedly connected to the output shaft of the motor. A third electric push rod is rotatably connected to the bottom of the movable bracket. The piston rod of the third electric push rod is rotatably connected to the bottom of the motor. A panoramic visual recognition camera is fixedly mounted on the surface of the motor.

2. The shield tunnel invert filling and roughening device according to claim 1, characterized in that: A dust suppression mechanism is provided on the surface of the tunnel moving trolley. The dust suppression mechanism includes a water tank, which is fixedly connected to the surface of the tunnel moving trolley. A water pump is fixedly connected to the surface of the water tank. A connecting hose is fixedly connected to the output end of the water pump. A support pipe is fixedly connected to the surface of the connecting hose. A dust suppression pipe is fixedly connected to the surface of the support pipe. A dust suppression nozzle is fixedly connected to the surface of the dust suppression pipe. The support pipe is fixedly connected to the surface of the movable support.

3. The shield tunnel invert filling and roughening device according to claim 1, characterized in that: The mechanical rotating seat drives the main support arm and the second electric push rod to rotate via the rotating end. The main support arm and the second electric push rod simultaneously drive the first electric push rod to rotate. The second electric push rod pushes the first electric push rod to rotate on the main support arm via the piston rod.

4. The shield tunnel invert filling and roughening device according to claim 3, characterized in that: The first electric push rod pushes the movable bracket to move in a straight line through the piston rod, and the movable bracket drives the electric motor and the chisel head to move synchronously.

5. The shield tunnel invert filling and roughening device according to claim 4, characterized in that: The third electric push rod drives the motor to rotate via the piston rod, and the motor drives the chisel head to rotate synchronously. The motor drives the chisel head to rotate via the output shaft.

6. A shield tunnel invert filling and roughening device according to claim 2, characterized in that: The support tube is U-shaped, and there are two sets of dust-suppressing tubes symmetrically distributed on both sides of the chisel head. There are multiple sets of dust-suppressing nozzles arranged linearly and evenly on the dust-suppressing tubes.

7. The shield tunnel invert filling and roughening device according to claim 2, characterized in that: The water tank contains a water source, and the water pump inputs the water source inside the water tank into the support pipe through a connecting hose. The water source inside the support pipe is then sprayed out as water mist through the dust suppression pipe and dust suppression nozzle.