A tunnel side wall center ditch gouging device

Abstract

The utility model provides a kind of tunnel side wall center ditch gouging device, including fixed base, rotating arm and swing arm oil cylinder, the front end of rotating arm is connected with first inclined oil cylinder, the fixed part of horizontal telescopic arm, the front end of first inclined oil cylinder is hinged with vertical telescopic arm, horizontal telescopic arm is hinged with vertical telescopic arm, the lower end of vertical telescopic arm is connected with connecting arm, the lower end of connecting arm is hinged with the upper end of fixed arm, the lower end of fixed arm is installed with gouging head, the movable part lower end of vertical telescopic arm is hinged with the upper end of second inclined oil cylinder, the lower end of second inclined oil cylinder is hinged with the upper end of fixed arm;By adjusting first inclined oil cylinder and horizontal telescopic arm drive vertical telescopic arm left and right movement, vertical telescopic arm moves to specified position after separate adjustment first inclined oil cylinder or horizontal telescopic arm, vertical telescopic arm clockwise or counterclockwise rotation, second inclined oil cylinder drive gouging head rotation, realize multidirectional multi-point gouging, improve gouging effect.

Description

Technical Field

[0001] This utility model relates to the technical field of concrete roughening, and in particular to a device for roughening the central drainage ditch of a tunnel sidewall. Background Technology

[0002] In the construction of long-span tunnels, the concrete surfaces of the sidewall drainage ditches, cable trenches, and central drainage ditches must be roughened before operation to enhance the bonding strength of the concrete. However, the existing roughening equipment has limitations in its operation when roughening the existing concrete surfaces of the tunnel sidewalls and drainage ditches, making it difficult to meet the needs of full-section tunnel construction. The large range of motion of each robotic arm of the roughening device makes it difficult to accurately adapt to the tunnel curves, resulting in inconsistent roughening depths, poor effects, low efficiency, and delays in work. Utility Model Content

[0003] This utility model aims to provide a chipping device for the central drainage ditch of a tunnel sidewall, which enables the vertical telescopic arm to move left and right and rotate, thereby driving the chipping head to work in different positions, and the chipping head can swing left and right to achieve multi-directional and multi-point chipping, which is suitable for the sidewalls and central drainage ditches of large-span tunnels.

[0004] Therefore, the technical solution adopted by this utility model is as follows: a device for roughening the center ditch of a tunnel sidewall, comprising a fixed base, a rotating arm hinged to the fixed base, and a swing arm cylinder for driving the rotating arm to rotate. The upper part of the front end of the rotating arm is hinged to a first tilting cylinder, and the lower part is fixedly connected to a fixed part of a horizontal telescopic arm. The front end of the first tilting cylinder is hinged to the upper end of the fixed part of the vertical telescopic arm. The front end of the movable part of the horizontal telescopic arm is hinged to the lower end of the fixed part of the vertical telescopic arm. A connecting arm is fixedly connected to the lower end of the vertical telescopic arm. The lower end of the connecting arm is hinged to the upper end of the fixed arm. A roughening head is installed at the lower end of the fixed arm. The lower end of the movable part of the vertical telescopic arm is hinged to the upper end of a second tilting cylinder. The lower end of the second tilting cylinder is hinged to the upper end of the fixed arm.

[0005] As a preferred embodiment of the above solution, the vertical telescopic arm includes a vertical fixing sleeve as a fixed part and a vertical telescopic rod as a movable part disposed within the vertical fixing sleeve. A vertical hydraulic cylinder is provided on the left side of the vertical telescopic arm for driving the vertical telescopic rod to move up and down within the vertical fixing sleeve. The left end of the first tilting hydraulic cylinder is connected to the upper part of the vertical fixing sleeve, and the left end of the horizontal telescopic arm is connected to the lower end of the vertical fixing sleeve.

[0006] More preferably, the horizontal telescopic arm includes a horizontal fixed sleeve as a fixed part connected to the rotating arm and a horizontal telescopic rod as a movable part disposed within the horizontal fixed sleeve. The left end of the horizontal telescopic rod is hinged to the lower end of the vertical fixed sleeve. A horizontal hydraulic cylinder is disposed below the horizontal fixed sleeve, with one end of the horizontal hydraulic cylinder connected to the horizontal fixed sleeve and the other end connected to the horizontal telescopic rod.

[0007] More preferably, the upper end of the connecting arm is fixedly connected to the vertical telescopic rod via a connecting seat, and the lower end is hinged to the fixed arm via a connecting seat. The two ends of the second tilting cylinder are respectively hinged to the vertical telescopic rod and the fixed arm via connecting seats.

[0008] More preferably, the cylinder body of the vertical cylinder is fixedly connected to the vertical fixing sleeve, and the output end is connected to the lower end of the vertical telescopic rod.

[0009] The beneficial effects of this utility model are as follows: A swing arm cylinder is set on the fixed base to drive the rotation of the rotating arm. A first tilting cylinder and a horizontal telescopic arm are set on the rotating arm. By adjusting the first tilting cylinder and the horizontal telescopic arm, the vertical telescopic arm can be moved left and right. After the vertical telescopic arm moves to the designated position, the first tilting cylinder or the horizontal telescopic arm can be adjusted separately to drive the vertical telescopic arm to rotate clockwise or counterclockwise, so that it can adapt to the curve of the tunnel sidewall and the structure of the central ditch. The second tilting cylinder set on the vertical telescopic arm drives the chisel head to rotate around the connection point of the fixed arm and the connecting arm, so as to realize multi-directional and multi-point chiseling, ensure consistent chiseling depth, and improve the chiseling effect. Attached Figure Description

[0010] Figure 1 This is a schematic diagram of the structure of this utility model. Detailed Implementation

[0011] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0012] like Figure 1 As shown, a device for roughening the center drainage ditch of a tunnel sidewall includes a fixed base 1, which is mounted on the rotating chassis of an excavator. The rotating chassis drives the fixed base 1 to rotate, thus adapting to the sidewalls on both sides of the tunnel and the drainage ditch. A rotating arm 2 is hinged to the fixed base 1, and a swing arm cylinder 3 is used to drive the rotating arm 2 to rotate. The extension and retraction of the swing arm cylinder 3 drives the rotating arm 2 to rotate around the connection point with the fixed base 1, thereby adjusting the position of the rotating arm 2 to facilitate roughening operations.

[0013] The upper part of the front end of the rotating arm 2 is hinged to a first tilting cylinder 5, and the lower part is fixedly connected to a fixed part of a horizontal telescopic arm 6. The front end of the first tilting cylinder 5 is hinged to the upper end of the fixed part of the vertical telescopic arm 4, and the front end of the movable part of the horizontal telescopic arm 6 is hinged to the lower end of the fixed part of the vertical telescopic arm 4. The vertical telescopic arm 4 is moved left and right by the extension and retraction of the first tilting cylinder 5 and the horizontal telescopic arm 6. After the vertical telescopic arm 4 moves to the designated position, the first tilting cylinder 5 or the horizontal telescopic arm 6 can be adjusted separately to drive the vertical telescopic arm 4 to rotate clockwise or counterclockwise, so that the vertical telescopic arm 4 adapts to the curve of the tunnel sidewall.

[0014] The vertical telescopic arm 4 includes a vertical fixing sleeve 401 as a fixed part and a vertical telescopic rod 402 as a movable part disposed within the vertical fixing sleeve 401. A vertical cylinder 403 is provided on the left side of the vertical telescopic arm 4 to drive the vertical telescopic rod 402 to move up and down within the vertical fixing sleeve 401. The left end of the first tilting cylinder 5 is connected to the upper part of the vertical fixing sleeve 401, and the left end of the horizontal telescopic arm 6 is connected to the lower end of the vertical fixing sleeve 401. The vertical cylinder 403 includes a cylinder body and a piston. The lower end of the piston is hinged to the vertical telescopic rod 402 through a connecting seat, and the cylinder body is fixedly connected to the vertical fixing sleeve 401.

[0015] The horizontal telescopic arm 6 includes a horizontal fixed sleeve 601, which is a fixed part connected to the rotating arm 2, and a horizontal telescopic rod 602, which is a movable part disposed within the horizontal fixed sleeve 601. The left end of the horizontal telescopic rod 602 is hinged to the lower end of the vertical fixed sleeve 401. A horizontal hydraulic cylinder is disposed below the horizontal fixed sleeve 601, with one end connected to the horizontal fixed sleeve 601 and the other end connected to the horizontal telescopic rod 602. The horizontal hydraulic cylinder drives the horizontal telescopic rod 602 to extend and retract within the horizontal fixed sleeve 601, thereby adjusting the position of the vertical fixed sleeve 401 by the horizontal telescopic rod 602 and the first tilting hydraulic cylinder 5, allowing it to move left and right or rotate clockwise or counterclockwise. The horizontal fixed sleeve 601 of the horizontal telescopic arm 6 is fixedly connected to the rotating arm 2, which improves the stability of the vertical telescopic arm 4 during movement and rotation.

[0016] The lower end of the vertical telescopic arm 4 is fixedly connected to a connecting arm 8. The lower end of the connecting arm 8 is hinged to the upper end of the fixed arm 9. A chisel head 7 is installed at the lower end of the fixed arm 9. The lower end of the movable part of the vertical telescopic arm 4 is hinged to the upper end of the second tilting cylinder 10. The lower end of the second tilting cylinder 10 is hinged to the upper end of the fixed arm 9. The two ends of the second tilting cylinder 10 are respectively hinged to the vertical telescopic rod 402 and the fixed arm 9 through connecting seats. By adjusting the extension and retraction of the second tilting cylinder 10, the fixed arm 9 is driven to rotate around the connection point with the connecting arm 8, thereby driving the chisel head 7 below the fixed arm 9 to rotate, increasing the working coverage area of ​​the chisel head 7 below the fixed arm 9, and further adapting to the curvature of the tunnel sidewall.

[0017] A swing arm cylinder is installed on the fixed base 1 to drive the rotation of the rotating arm 2. The rotating arm 2 is equipped with a first tilting cylinder 5 and a horizontal telescopic arm 6. By adjusting the first tilting cylinder 5 and the horizontal telescopic arm 6, the vertical telescopic arm 4 can be moved left and right. After the vertical telescopic arm 4 moves to the designated position, the first tilting cylinder 5 or the horizontal telescopic arm 6 can be adjusted separately to drive the vertical telescopic arm 4 to rotate clockwise or counterclockwise, so that it can adapt to the curve of the tunnel sidewall and the structure of the central ditch. The second tilting cylinder 10 installed on the vertical telescopic arm 4 drives the chisel head 7 to rotate around the connection point of the fixed arm 9 and the connecting arm 8, so as to realize multi-directional and multi-point chiseling, ensure consistent chiseling depth, and improve the chiseling effect.

[0018] Although embodiments of the present invention have been shown and described, those skilled in the art will understand 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 claims and their equivalents.

Claims

1. A device for grooving a tunnel side wall center channel, characterized by: The device includes a fixed base (1), a rotating arm (2) hinged to the fixed base (1), and a swing arm cylinder (3) for driving the rotating arm (2) to rotate. The upper part of the front end of the rotating arm (2) is hinged to a first tilting cylinder (5), and the lower part is fixedly connected to a fixed part of a horizontal telescopic arm (6). The front end of the first tilting cylinder (5) is hinged to the upper end of the fixed part of the vertical telescopic arm (4). The front end of the movable part of the horizontal telescopic arm (6) is hinged to the lower end of the fixed part of the vertical telescopic arm (4). The lower end of the vertical telescopic arm (4) is fixedly connected to a connecting arm (8). The lower end of the connecting arm (8) is hinged to the upper end of a fixed arm (9). The lower end of the fixed arm (9) is equipped with a chisel head (7). The lower end of the movable part of the vertical telescopic arm (4) is hinged to the upper end of a second tilting cylinder (10). The lower end of the second tilting cylinder (10) is hinged to the upper end of the fixed arm (9).

2. A device for grooving a center channel of a tunnel wall according to claim 1, characterized in that: The vertical telescopic arm (4) includes a vertical fixing sleeve (401) as a fixed part and a vertical telescopic rod (402) as a movable part disposed in the vertical fixing sleeve (401). A vertical cylinder (403) for driving the vertical telescopic rod (402) to move up and down in the vertical fixing sleeve (401) is provided on the left side of the vertical telescopic arm (4). The left end of the first tilting cylinder (5) is connected to the upper part of the vertical fixing sleeve (401), and the left end of the horizontal telescopic arm (6) is connected to the lower end of the vertical fixing sleeve (401).

3. A device for grooving a center channel of a tunnel wall according to claim 2, characterized in that: The horizontal telescopic arm (6) includes a horizontal fixed sleeve (601) connected to the rotating arm (2) as a fixed part and a horizontal telescopic rod (602) disposed in the horizontal fixed sleeve (601) as a movable part. The left end of the horizontal telescopic rod (602) is hinged to the lower end of the vertical fixed sleeve (401). A horizontal cylinder (603) is disposed below the horizontal fixed sleeve (601). One end of the horizontal cylinder (603) is connected to the horizontal fixed sleeve (601), and the other end is connected to the horizontal telescopic rod (602).

4. A device for grooving a center channel of a tunnel wall according to claim 3, characterized in that: The upper end of the connecting arm (8) is fixedly connected to the vertical telescopic rod (402) through the connecting seat, and the lower end is hinged to the fixed arm (9) through the connecting seat. The two ends of the second tilting cylinder (10) are respectively hinged to the vertical telescopic rod (402) and the fixed arm (9) through the connecting seat.

5. A device for grooving a center channel of a tunnel wall according to claim 4, characterized in that: The cylinder body of the vertical cylinder (403) is fixedly connected to the vertical fixed sleeve (401), and the output end is connected to the lower end of the vertical telescopic rod (402).

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