Subway tunnel rigid catenary paying-off trolley

Abstract

The invention discloses a subway tunnel rigid catenary paying-off trolley. The subway tunnel rigid catenary paying-off trolley is used for clamping a catenary (18) into a busbar (12) and comprises a trolley frame, guide wheel mechanisms, a stretching mechanism and a pushing-in mechanism. The guide wheel mechanisms are arranged on the two sides of the trolley frame and are connected with the side faces of the busbar (12) in a sliding manner. The stretching mechanism is arranged on the top side of the trolley frame. The lower side of the stretching mechanism is opposite to an opening, used for clamping the catenary therein, of the busbar (12). The stretching mechanism stretches the busbar in a cam stretching manner. The pushing-in mechanism is arranged on the top side of the trolley frame. The lower side of the pushing-in mechanism is opposite to the opening, used for clamping the catenary therein, of the busbar, and the pushing-in mechanism is used for pushing the catenary into the busbar (12). The subway tunnel rigid catenary paying-off trolley has the advantages that time is greatly saved, the service life is prolonged, an original lead screw right-handed and left-handed thread stretching manner into the cam stretching manner, the installation time is greatly shortened than that of the original manner that the lead screw rotates for several circles, and construction can be rapider and more convenient.

Description

Technical field [0001] The invention relates to a rigid catenary line pay-off trolley for subway tunnels, which belongs to the technical field of auxiliary installation of the catenary in subway tunnels. Background technique [0002] In the subway industry, a large number of overhead rigid suspension contact nets are used for power supply, and rigid contact net contact wires are used as the contact flow with the locomotive carbon skateboard. Due to the electrical corrosion between the contact wire and the locomotive carbon sliding plate, the mechanical friction of the pantograph carbon sliding plate, the chemical corrosion and the oxidation of the contact wire and other factors, the contact wires of the copper-silver alloy rigid contact net appear to be worn to varying degrees. The catenary needs to be replaced. [0003] As the subway runs all year round, the catenary can only be removed and replaced in about 3 hours after the subway is out of service at night. The time is short a...

AI Technical Summary

Problems solved by technology

[0003] Since the subway operates around the clock, only about 3 hours after the subway is out of service at night to remove and replace the catenary, the time is short and the task is heavy. It takes a lot of time, and there are too many grids or less jams in the busbar, which causes the grid to be not in a horizontal direction, which affects the operation of the train, troublesome inspection and maintenance, and the service life of the trolley is short and easy to be damaged.

Images