Contact line operation tower wagon for electrified overhead contact lines of subway

Abstract

The invention relates to a contact line operation tower wagon for electrified overhead contact lines of a subway, comprising a tower wagon underframe, wherein a tower wagon body is fixed on the tower wagon underframe; a cross rod is installed at the bottom of the tower wagon underframe in a rotating mode, hoops are respectively installed at two ends of the cross rod, a handle positioning hole is formed in the cross rod, and a handle is inserted into the handle positioning hole; each hoop comprises left and right clamp pins, through holes are respectively formed in the left and right clamp pins, a screw rod is inserted between two through holes, the head of the screw rod blocks the outer side of the corresponding clamp pin, the tail end of the screw rod extends out of the through holes and is fixed with a pull wire, and the screw rod is sleeved with a return spring between the left and right clamp pins; and a brake pull rod capable of controlling the length of the pull wire is installed at the outer part of the tower wagon body. The contact line operation tower wagon provided by the invention can meet construction requirements of contact lines in tunnels with different clearance heights in the subway; and the device is light in weight and high in strength, has an anti-tipping function, and is economical and applicable.

Description

technical field [0001] The invention relates to a necessary device for the construction of a subway overhead catenary, in particular to a catenary operation ladder car used for a subway electrified overhead catenary. Background technique [0002] The catenary operation ladder trolley walking on the subway rail has a narrow chassis and a body height of 4m. The chassis is only 1.6m wide and 1.9m long. It is easy to tip over during construction operations, especially when the rail curve is pushed and construction operations are often tilted. turn. Usually, when construction workers work on the catenary ladder truck, 4 people are required to support the catenary ladder truck below, and the staff on the top are in an unsafe state at any time during operation. [0003] Since the ladder frame is processed as a whole, the height of the ladder car cannot be adjusted. When there is a large difference in the clearance of the subway tunnel, it is necessary to configure ladder cars of d...

AI Technical Summary

Problems solved by technology

[0004] In order to solve the problem that the ladder trolley in the catenary operation of the subway is heavy, difficult to carry, going up and down the road, the wheels are noisy, easy to fall off the road, the ladder trolley is easy to tip over in curves and running, and the working height of the ladder trolley cannot be adjusted.

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