Rail layer walking process automatic span variation device and span variation method

Abstract

The method relates to the technical field of subway rail laying engineering, in particular to a rail layer walking process automatic span variation device and span variation method. The automatic span variation in the walking process is achieved through the cooperation of various components. Compared with the prior art, the device has the advantages that trapezoidal continuous transitional span variation interval rail is pre-laid. Other auxiliary equipment for suspension support is unnecessary in the span variation operation in a tunnel, thus reducing the investment of auxiliary cost. The use of auxiliary transitional rail expedites the quick transition of the forward direction operational rail to the interval operational rail, thus achieving the continuous operation of the rail construction, and achieving the zero time cost in the span variation operation, hugely saving the labor, and greatly increasing the construction speed. The laying of the interval operational rail and the installation of the transitional rail are all implemented in tunnel. A construction unit is agile and flexible, thus avoiding the potential danger of the suspension operation, achieving the essential safety of the rail laying and span variation operation. The span variation operation in tunnel applies electrical energy as the power source, thus generating no energy pollution, and meeting the environmental protection requirement.

Description

[0001] [technical field] [0002] The invention relates to the technical field of subway track-laying engineering machinery, in particular to an automatic span-changing device and a span-changing method related to the traveling process of a track-laying machine. [0003] [Background technique] [0004] At present, in the process of domestic subway track laying construction, the methods used by the track laying machine to change the span in the shield operation area are: 1) Hang the track laying machine on the top of the shield, or use a flatbed truck to haul the bracket to lift the track laying machine at the bottom of the upper beam. The main components of the track laying machine were disassembled and then reassembled to realize the span change. Using this method to change the span: Since the jacking, dismantling, and installation operations of the track-laying machine are all carried out in the shield, the space is narrow, the hoisting and jacking are inconvenient, the disas...

AI Technical Summary

Problems solved by technology

Using this method to change the span: Although the spanning operation time is accelerated and the safety risk of the spanning is reduced, it is still necessary to stop, jack up, lay a temporary traverse track, and manually or electrically drive the spanning during the interval spanning, which is time-consuming and labor-intensive , it is impossible to achieve zero time-consuming cross-station operation

[0005] In summary, the existing track-laying construction devices and methods need to be shut down to switch between different working surface spans in practical applications, which takes up effective track-laying operation time. Time-consuming has become an inevitable trend. Therefore, it is an inevitable trend to develop a track-laying device and method that does not require any auxiliary equipment, can automatically change the span during the traveling process, realize zero time-consuming operation surface change, reduce a lot of labor, and is energy-saving and environmentally friendly.

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