Articulated limit positioning device

Abstract

An articulated limiting and positioning device comprises a positioning support and a positioner. The positioning support comprises a positioning support body and a connection dual lug, the middle section of the positioning support body is in a 'T'-shaped structure, the upper end of the positioning support body is in a hoop structure, the lower end of the positioning support body is in a cylindrical structure, and the center of the cylindrical structure is vertically provided with an internal threaded hole. A threaded dowel penetrates a through hole in the end of the connection dual lug to mount the connection dual lug in the internal threaded hole, and the connection dual lug is hinged to the lower end of the positioning support body and capable of rotating horizontally. A single-lug positioning hook is fixedly connected to the rear end of the positioner and hinged to the connection dual lug through a connection dowel, and a limiting block is arranged in the middle of the positioning support body. A connection structure of the positioning support and the positioner is changed by replacement of a simple hook-ring structure with a hinge structure formed by connection of the connection dual lug, the single-lug positioning hook and the dowels, and accordingly a function of adjusting horizontal deflection and vertical lifting of the positioner can be realized, and great convenience and high reliability in production, mounting, adjustment, maintenance and operation are achieved.

Description

technical field [0001] The invention relates to the technical field of catenary equipment for electrified railways, in particular to a hinged positioning device. Background technique [0002] The wires of the electrified railway catenary, that is, the contact line, are fixed by connecting the locator with the positioning support, and the reliability of the connection between the positioning support and the locator directly affects the safety of the entire electrified catenary. In the operation lines of my country's high-speed electrified railways, most of the positioning supports and positioners are connected by "hooks" and "rings", that is, positioners use positioning hooks, and positioning supports use positioning rings. This classic connection method has the characteristics of simple structure, low manufacturing cost, and convenient installation. However, with the continuous use of the parts, the adaptability of this connection structure is poor in special or abnormal for...

AI Technical Summary

Problems solved by technology

However, with the continuous use of the parts, the adaptability of this connection structure is poor in special or abnormal force-bearing areas, and phenomena such as uneven force and virtual connections may appear between the "hook" and "ring". This leads to problems such as abnormal wear between the two, gap discharge corrosion, and weak bearing capacity of the shackle, which brings many safety hazards to the high-speed electrified railway operation system

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