Swing angle degree crawler walking mechanism and tunnel slip form paver

Abstract

A kind of swing angle crawler walking mechanism and tunnel slipform paver belong to the optimization design field of slipform paver. Including main frame, walking mechanism is installed on the main frame, walking mechanism includes installation column, the lower end of installation column is fixedly connected with swing angle upper connecting seat, swing angle lower connecting seat is hinged below swing angle upper connecting seat, swing angle lower connecting seat is installed with walking assembly arranged along front and back direction below, swing angle oil cylinder is hinged between swing angle upper connecting seat and swing angle lower connecting seat, swing angle oil cylinder is used to drive walking assembly installed on swing angle lower connecting seat left and right adjustment angle. The utility model discloses the slipform paver is equipped with walking swing angle mechanism, walking assembly can swing to left and right sides, realize angle adjustment, when entering the circular tunnel wall of shield tunnel, swing angle oil cylinder can be controlled to adjust the swing angle of walking assembly to adjust the contact angle of walking crawler with tunnel wall, so that walking assembly and shield tunnel wall are completely attached.

Description

Technical Field

[0001] This utility model relates to a slipform paver adapted to tunnel construction that can change the angle between the walking track and the vertical direction, and belongs to the field of optimization technology of slipform pavers. Background Technology

[0002] After the tunnel boring machine (TBM) construction is completed, the concrete slabs for the tunnel foundation need to be laid. Traditional construction methods mainly rely on manual formwork erection and pouring or segmented precast slab installation, which involves numerous procedures, low efficiency, and inconsistent quality. Using a slipform paver for mechanized construction can significantly improve efficiency and ensure quality. However, slipform pavers typically operate on flat ground. Since the cross-section of a tunnel after TBM construction is circular, the challenge of ensuring the stability of the slipform paver during mechanized construction must be addressed. Utility Model Content

[0003] One of the objectives of this invention is to provide a tilting track walking mechanism that can effectively solve the problems in the background art.

[0004] The technical solution to achieve the above objective is: a tilting track walking mechanism, including a mounting column, characterized in that: a tilting upper connecting seat is fixedly connected to the lower end of the mounting column, a tilting lower connecting seat is hinged below the tilting upper connecting seat, a walking assembly arranged in the front-back direction is installed below the tilting lower connecting seat, and a tilting cylinder is hinged between the tilting upper connecting seat and the tilting lower connecting seat, the tilting cylinder being used to drive the walking assembly installed on the tilting lower connecting seat to adjust the tilting angle left and right.

[0005] Furthermore, the mounting column is a lifting column structure, including an outer column and an inner column that is slidably installed inside the outer column. A lifting cylinder for driving the outer column to rise and fall is installed between the outer column and the inner column, and the swing angle connecting seat is fixedly installed at the lower end of the inner column.

[0006] Furthermore, one end of the lower connecting seat of the swing angle is hinged to the same side end of the upper connecting seat of the swing angle via a pin, and the swing angle cylinder is located on the side away from the hinged end of the lower connecting seat of the swing angle.

[0007] Furthermore, the walking assembly is a walking assembly with steering function.

[0008] Furthermore, the walking assembly includes a walking connecting frame, on which a walking device is connected. A turntable is fixed at the upper end of the walking connecting frame. A steering fixing seat, which is fixedly connected to the lower connecting seat of the swing angle, is rotatably mounted on the turntable. A steering cylinder is hinged between the steering fixing seat and the walking connecting frame. The steering cylinder is used to drive the walking device connected to the walking connecting frame to turn.

[0009] Furthermore, the walking assembly is a tracked walking assembly.

[0010] Another objective of this utility model is to provide a tunnel slipform paver, including a main frame, on which a traveling mechanism is installed, and the traveling mechanism on the main frame adopts a tilting track traveling mechanism.

[0011] The beneficial effects of this utility model are: This utility model of a slipform paver is equipped with a walking sway mechanism, allowing the walking assembly to swing left and right to adjust the angle. When entering the circular tunnel wall of a shield tunnel, the sway cylinder can be controlled to adjust the sway angle of the walking assembly, thereby adjusting the contact angle between the walking track and the tunnel wall, ensuring complete contact between the walking assembly and the shield tunnel wall. Furthermore, the sway angle can be adjusted in real time according to the actual working conditions of the circular shield tunnel cross-section, thus enabling the slipform paver to achieve optimal walking stability.

[0012] The sliding track walking mechanism of this utility model enables the slipform paver to travel normally on the circular tunnel wall behind the shield tunnel, so that the concrete slabs of the tunnel foundation can be constructed by the slipform paver in a mechanized manner, which greatly improves work efficiency and construction quality compared with the existing manual construction process. Attached Figure Description

[0013] Figure 1 This is a structural schematic diagram of the tilting track walking mechanism; Figure 2 This is a first partial schematic diagram of the present invention; Figure 3 This is a second partial schematic diagram of the present invention; Figure 4 This is a schematic diagram of the working state of a tunnel slipform paver. Detailed Implementation

[0014] like Figure 1-3 As shown, this utility model provides a tilting track walking mechanism 1, including a lifting structure mounting column 2. The mounting column 2 belongs to the existing mature technology, including an outer column 2.1 and an inner column 2.2 slidably installed in the outer column 2.1. A lifting cylinder (not shown in the figure) is installed between the outer column 2.1 and the inner column 2.2 to drive the outer column 2.1 to lift.

[0015] The lower end of the inner column 2.2 is fixedly connected to the upper swing angle connecting seat 3. The lower swing angle connecting seat 4 is provided below the upper swing angle connecting seat 3. One end of the lower swing angle connecting seat 4 is hinged to the same side end of the upper swing angle connecting seat 3 through the pin 8. The walking assembly 5 is installed below the lower swing angle connecting seat 4. The walking assembly 5 is a tracked walking assembly. The upper swing angle connecting seat 3 and the lower swing angle connecting seat 4 are hinged together by a swing angle cylinder 6. The swing angle cylinder 6 is located on the side away from the hinged end of the lower swing angle connecting seat 4. The cylinder body of the swing angle cylinder 6 is hinged to the upper swing angle connecting seat 3 at the end near the telescopic rod, and the telescopic end is hinged to the middle of the lower swing angle connecting seat 4 at the end away from the pin 8. The swing angle cylinder 6 is used to drive the walking assembly 5 installed below the lower swing angle connecting seat 4 to adjust the angle left and right.

[0016] The walking assembly 5 includes a walking connecting frame 5.1, on which a walking device 5.2 is connected. A turntable 5.3 is fixed to the upper end of the walking connecting frame 5.1. A steering fixing seat 5.4, which is fixedly connected to the lower connecting seat 5 of the swing angle, is rotatably mounted on the turntable 5.3. A steering cylinder 5.5 is hinged between the steering fixing seat 5.4 and the walking connecting frame 5.1. The cylinder body of the steering cylinder 5.5 is hinged to the walking connecting frame 5.1 at one end near the telescopic rod, and the telescopic end of the steering cylinder 5.5 is hinged to the steering fixing seat 5.4. The steering cylinder 5.5 is used to drive the walking device 5.2 connected to the walking connecting frame 5.1 to turn.

[0017] like Figure 4 As shown, this utility model also discloses a tunnel slipform paver, including a main frame 6, on which a traveling mechanism is installed. The traveling mechanism on the main frame 6 adopts the above-mentioned sway angle track traveling mechanism 1.

[0018] During operation, the tunnel slipform paver travels on the arc-shaped tunnel wall after the tunnel shield construction is completed. Adjusting the extension and retraction of the swing cylinder 6 adjusts the contact angle between the travel assembly 5 and the tunnel wall, which is beneficial to the travel stability of the tunnel slipform paver.

[0019] During construction, the angle can be adjusted in real time according to the site conditions. Under the action of the lifting cylinder, the main frame 6 of the tunnel slipform paver rises and falls, thereby adjusting the elevation of the paved concrete. Under the action of the steering cylinder 5.5, the travel assembly 5 performs a steering action, thereby adjusting the alignment position of the paved concrete.

Claims

1. A tilting tracked walking mechanism, comprising a mounting column, characterized in that: The lower end of the mounting column is fixedly connected to an upper swing angle connector. A lower swing angle connector is hinged below the upper swing angle connector. A travel assembly arranged in the front-to-back direction is installed below the lower swing angle connector. A swing angle cylinder is hinged between the upper and lower swing angle connectors. The swing angle cylinder is used to drive the travel assembly installed on the lower swing angle connector to adjust the angle left and right.

2. The tilting track walking mechanism according to claim 1, characterized in that: The mounting column is a lifting column structure, including an outer column and an inner column that is slidably installed inside the outer column. A lifting cylinder for driving the outer column to rise and fall is installed between the outer column and the inner column. The swing angle connecting seat is fixedly installed at the lower end of the inner column.

3. The tilting track walking mechanism according to claim 1, characterized in that: One end of the lower connecting seat of the swing angle is hinged to the same side end of the upper connecting seat of the swing angle via a pin, and the swing angle cylinder is located on the side away from the hinged end of the lower connecting seat of the swing angle.

4. The tilting track walking mechanism according to claim 1, characterized in that: The aforementioned walking assembly is a walking assembly with steering function.

5. The tilting track walking mechanism according to claim 4, characterized in that: The walking assembly includes a walking connecting frame, on which a walking device is connected. A turntable is fixed at the upper end of the walking connecting frame. A steering fixing seat, which is fixedly connected to the lower connecting seat of the swing angle, is rotatably mounted on the turntable. A steering cylinder is hinged between the steering fixing seat and the walking connecting frame. The steering cylinder is used to drive the walking device connected to the walking connecting frame to turn.

6. The tilting track walking mechanism according to claim 1, characterized in that: The walking assembly is a tracked walking assembly.

7. A tunnel slipform paver, comprising a main frame and a traveling mechanism mounted on the main frame, characterized in that: The running gear on the main frame adopts the tilting track running gear as described in any one of claims 1-6.

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