A subway track laying system

Abstract

The invention discloses a subway rail laying system which comprises a subway rail laying machine, a rotary lifting frame matched with the rail laying machine, and a hydraulic control system, wherein the subway rail laying machine comprises traveling mechanisms, four supporting legs, lifting devices, a hoisting mechanism, a main beam mechanism, a cable drum and an operating system; the subway rail laying system is characterized in that each lifting device comprises two lifting frames; the main beam mechanism comprises a middle section beam and two telescopic beams; the rotary lifting frame comprises a base; a rotation device is mounted on the base; a main lifting device is arranged on the rotation device; an auxiliary lifting device is arranged on the main lifting device; the hydraulic control system comprises four lifting hydraulic cylinders, two telescopic hydraulic cylinders, two multi-stage hydraulic cylinders and a hydraulic controller used for controlling the eight hydraulic cylinders to be in a working state, wherein the two lifting hydraulic cylinders are mounted on each traveling beam; the two retractable hydraulic cylinders are mounted on the middle section beam and the two multi-stage hydraulic cylinders are mounted on the rotary lifting frame.

Description

technical field [0001] The invention relates to the technical field of subway track-laying process machinery, in particular to a subway track-laying system. Background technique [0002] In recent years, with the rapid development of urbanization roads, the problem of urban traffic congestion has become increasingly serious. Therefore, the subway, as an important part of urban public transportation, has attracted more and more attention. The rapid development of the subway is the solution to the problem of urban traffic congestion. one of the main ways. In the process of urban rail transit construction, the track pavement project is in the middle of the civil engineering and equipment installation projects in terms of construction schedule. It is the immediate process of civil engineering and the immediate process of other equipment installation projects. It has a huge impact on the progress of subsequent equipment installation and commissioning. Among the various processe...

AI Technical Summary

Problems solved by technology

The space in the tunnel is small, and there are many risk factors, inconvenient operation, long working time and other unfavorable factors in changing the span and structure of the old subway track laying machine in the tunnel. Once the subway track laying machine in the tunnel is stopped, the entire track laying process will be severely damaged. stagnation

In addition, the currently used subway track laying machines still have the following outstanding problems: 1. It is difficult to change the span, the operation is complicated, and the risk is difficult to control; 2. The structure must be disassembled for the span change, which is inefficient; 3. The span change The actual span of the post-subway track-laying system has not changed, only the left and right gauges of the subway track-laying machine have been changed. The net width of the subway track-laying machine is not enough. Due to the existence of the curve offset during small curve construction, the flatbed car cannot pass through the subway track-laying system, and the flatbed car cannot be hoisted. 4. Changing the span by changing the gauge can only change the horizontal dimension of the gantry crane, but the longitudinal dimension (height) cannot be adjusted, so there is no good applicability in complex conditions; 5. Often occur during construction In the transition situation of the working face, the gate crane must be disassembled and reassembled every time the transition is made, which affects the progress of the project; therefore, it is particularly important to design and develop a subway track laying system that can solve the above technical problems

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