Double-rotation telescopic variable-amplitude lifting platform, leveling mechanism hydraulic system and control method

Abstract

The invention relates to a double-rotation telescopic variable-amplitude lifting platform, a leveling mechanism hydraulic system and a control method. The double-rotation telescopic variable-amplitude lifting platform comprises a base structure, a first-stage rotary table mechanism, a main arm assembly, a second-stage rotary table mechanism and a working platform; the base structure is connected with the first-stage rotary table mechanism through a first-stage slewing mechanism, the main arm assembly comprises a basic arm and a telescopic arm connected with the basic arm in a sliding mode, the basic arm of the main arm assembly is hinged to the first-stage rotary table mechanism, and a variable-amplitude oil cylinder is arranged between the first-stage rotary table mechanism and the basic arm of the main arm assembly; the second-stage rotary table mechanism is hinged to the telescopic arm of the main arm assembly, and the second-stage rotary table mechanism is connected with a working platform through a second-stage slewing mechanism; and the leveling mechanism is used for enabling the working platform to be always in a horizontal state in the amplitude variation process of the main arm assembly. Through the first-stage slewing mechanism and the second-stage slewing mechanism, the working platform can achieve full-area operation during construction and maintenance of the inner wall of a tunnel, a contact net and a related net rack.

Description

technical field [0001] The invention belongs to the technical field of high-altitude manned lifting construction for rails, and in particular relates to a double-rotation telescopic luffing lifting platform, a hydraulic system of a leveling mechanism and a control method. Background technique [0002] Now that electrified lines have been fully popularized, and the proportion of line tunnels has increased, the demand for construction and maintenance of electrified line-related facilities such as catenary and catenary cables, as well as the construction and maintenance of tunnel inner walls, has increased sharply, requiring equipment to replace construction and maintenance personnel. Send it to a suitable height for construction and maintenance of overhead catenary, catenary cables, insulators, tripods, etc. [0003] In the existing technology, in order to realize the construction and maintenance of the inner wall of the tunnel, catenary and related grids, a lifting aerial wor...

AI Technical Summary

Problems solved by technology

[0003] In the existing technology, in order to realize the construction and maintenance of the inner wall of the tunnel, catenary and related grids, a lifting aerial work platform is generally installed on the rail locomotive. The platform supports the manned platform to rise through the scissor structure or the column telescopic structure. Or the main mechanism action taken by the column telescopic structure is vertical lifting, relying on vertical lifting to lift the people and materials in the working platform to a certain height; but the above two structures are limited by the structure in the side and front and rear directions , unable to reach the corresponding area, the operating range is small, and the flexibility is poor. In many cases on site, the operator needs to climb on the catenary pole and the rope, which is inconvenient and dangerous.

Images