Rigid double-wire OCS (Overhead Contact System)

Abstract

The invention relates to a rigid double-wire OCS (Overhead Contact System), and belongs to a power supply device of rail transit. The rigid double-wire OCS comprises aluminum alloy busbars and copper contact wires; the rigid double-wire OCS is characterized in that the aluminum alloy busbars of which the cross sections are in tripod shapes not only can be used for clamping two rigid copper contact wires (2) of which the cross sections are in key shapes, but also can be used for clamping two common copper contact wires (21) of which the cross sections are in calabash shapes, and the rigid copper contact wires (2) are formed by receiving end parts (15) with wider lower parts, narrow rectangular waist parts (16) and hanging head parts (17); the rigid copper contact wires (2) are clamped in clamping grooves (20) of the tripod-shaped aluminum alloy busbars (1) or the common copper contact wires (21) are clamped in clamping grooves (19) of the tripod-shaped aluminum alloy busbars (1) by utilizing pressing plates (3); the aluminum alloy busbars (1) are hung under an insulator (7) through main hooks (6) and auxiliary hooks (5), the aluminum alloy busbars (1) are firmly hung at the top part of a subway tunnel through a cross beam (8) and the like, and thus the rigid double-wire OCS is formed. According to the rigid double-wire OCS disclosed by the invention, the copper contact wires can be firmly clamped, the transmission current is large, the vertical rigidity is large, disconnection cannot be caused, the installation is convenient, the circuit temperature rising is low, and safety is realized.

Description

technical field [0001] The invention relates to a rigid double-wire catenary, which belongs to a power supply device for rail transit. Background technique [0002] Before the present invention was made, the rail transit rigid suspension catenary in the prior art used aluminum alloy bus bars to directly clamp a single copper contact wire, such as the large damping rigid suspension catenary with patent No. 201020512425.8. There are also aluminum alloy busbars used to directly clamp two copper contact wires, such as the rigid suspension double-wire catenary device of patent 2004201223935. When they are installed, they need to open the drooping arm of the aluminum alloy busbar, and insert the gourd-shaped copper contact wire into the notch of the aluminum alloy busbar with the help of an embedded wire installation vehicle. Due to the influence of the built-in intermediate joint, the longitudinal two ends of the aluminum alloy busbar tend to Beyond the elastic deformation range...

AI Technical Summary

Problems solved by technology

When they are installed, they need to open the drooping arm of the aluminum alloy busbar, and insert the gourd-shaped copper contact wire into the notch of the aluminum alloy busbar with the help of an embedded wire installation vehicle. Due to the influence of the built-in intermediate joint, the longitudinal two ends of the aluminum alloy busbar tend to Beyond the elastic deformation range, the drooping arm of the aluminum alloy busbar loses its clamping force on the copper contact wire, and the reliability is low

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