Trackless self-propelled platform truck for maintaining subway tunnel

Abstract

The invention discloses a trackless self-propelled platform truck for maintaining a subway tunnel. The trackless self-propelled platform truck comprises a mechanical system, a control system, a hydraulic system and a power system, wherein the mechanical system comprises a running gear, a main bearing platform, a fixed operating platform, a lifting operating platform, a telescopic operating platform, a support device, a vehicle-mounted equipment platform and a self-aligning mechanism, wherein the two ends of the main bearing platform and the fixed operating platform are in sliding fit with thetelescopic operating platform; the support device is connected with the telescopic operating platform; the vehicle-mounted equipment platform is used for placing vehicle-mounted equipment; the self-aligning mechanism is arranged below the vehicle-mounted equipment platform; the control system comprises a PLC; the PLC is mounted on the main bearing platform; the hydraulic system comprises a hydraulic actuating element; the hydraulic actuating element is mounted on the self-aligning mechanism; the input end of the hydraulic actuating element is connected with the PLC; and the power system is electrically connected with the hydraulic system and the control system. The trackless self-propelled platform truck can safely move and carry out maintaining operation in different subway tunnel diameters.

Description

technical field [0001] The invention relates to, in particular to a trackless self-propelled platform vehicle used for subway tunnel maintenance. Background technique [0002] In the later stage of subway tunnel construction, post-processing maintenance work is required. Subway tunnel post-treatment maintenance mainly includes caulking, segment cleaning, segment repair, etc. At present, the maintenance equipment usually used in engineering is a simple structure platform, which is spliced ​​by section steel, with outriggers on both sides, four sheaves are installed on the outriggers, and the sheaves are supported on two temporary rails , the temporary track is fixed on the inner wall of the segment. The simple structure platform mainly has the following problems: the movement of the platform depends on human traction, and the temporary track needs to be turned over and laid, which is inconvenient to operate and low in efficiency; sometimes it is necessary to drill holes in ...

AI Technical Summary

Problems solved by technology

The simple structure platform mainly has the following problems: the movement of the platform depends on human traction, and the temporary track needs to be turned over and laid, which is inconvenient to operate and low in efficiency; sometimes it is necessary to drill holes in the segment when laying the temporary track, which may easily cause cracking and falling of the segment; in order to ensure For slag discharge and material transport trains, the operating platform is higher than the ground, and tunnel maintenance tools are randomly placed on the platform. The center of gravity of the platform is high, the eccentric load is serious, and the stability is poor; the strength and stiffness need to be strictly calculated and analyzed, otherwise, personnel and Equipment safety cannot be guaranteed; compared with advanced shield technology, subway tunnel maintenance construction equipment technology and technology are relatively backward

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