Strain clamp for high-elongation duralumin stranded conductor with composite material core

Abstract

The invention discloses a strain clamp for a composite core high-elongation duralumin stranded wire, and relates to the technical field of strain clamps. The clamp comprises a first clamping part, a second clamping part and a third clamping part, channels are formed in the first clamping part, the second clamping part and the third clamping part, and the first clamping part and the third clamping part are connected through at least one second clamping part. The first clamping part and the second clamping part or the second clamping part and the third clamping part are connected through matching of the spherical notches and the spherical column heads, a wire rod is installed in a channel where the first clamping part, the second clamping part and the third clamping part are communicated with one another, and the outer side of the wire rod is sleeved with a wire sleeve in close contact with the inner wall of the channel. The wire rod sleeved with the wire sleeve sequentially penetrates through the channels of the first clamping part, the second clamping part and the third clamping part, the wire sleeve is of a cone structure, the small end of the wire sleeve is located in the first clamping part, the large end of the wire sleeve is located in the third clamping part, the deformed wire sleeve clamps the passing wire rod, and clamping of the wire rod is achieved.

Description

technical field [0001] The invention belongs to the technical field of strain clamps, in particular to a strain clamp for duralumin stranded wire with a composite material core and high elongation. Background technique [0002] In the power grid, the strain clamp can fix the aluminum stranded wire or the steel-cored aluminum stranded wire on the strain rod, and is used for supporting the use of the overhead insulated wire and the insulating cover to play an insulating and protective role. When the wire clamp is installed, because the wire clamp pressure plate is fixed by fitting and pressing the slot on the top surface of the U-bolt, it is difficult to locate the wire clamp pressure plate in the early stage of installation, resulting in extremely inconvenient installation; The clamp plate and the U-bolt in use are tightly pressed and fixed in a positive and vertical manner. Therefore, the contact surface between the U-bolt and the clamp plate is small, which in turn causes i...

AI Technical Summary

Problems solved by technology

[0002] In the power grid, the strain clamp can fix the aluminum stranded wire or the steel-cored aluminum stranded wire on the strain rod, and is used for supporting the use of the overhead insulated wire and the insulating cover to play an insulating and protective role. When the wire clamp is installed, because the wire clamp pressure plate is fixed by fitting and pressing the slot on the top surface of the U-bolt, it is difficult to locate the wire clamp pressure plate in the early stage of installation, resulting in extremely inconvenient installation; The clamp plate and the U-bolt in use are tightly pressed and fixed in a positive and vertical manner. Therefore, the contact surface between the U-bolt and the clamp plate is small, which in turn causes insufficient contact between the clamp plate and the wire, especially In a relatively vibrating environment, the friction between them is insufficient, and it is easy to loosen and fall off

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