Hydraulic pressure stripper for steel-core aluminum stranded conductor

Abstract

The invention relates to a hydraulic pressure stripper for a steel-core aluminum stranded conductor. The stripper includes a knife rest, a stationary knife, a movable knife and a hydraulic pressure drive device. The knife rest is provided with a cavity serving as a lead receiving cavity. The stationary knife is fixed on one side of the lead receiving cavity. The movable knife is movably arranged on the other side of the lead receiving cavity. The rear end of the movable knife is connected with the hydraulic pressure drive device used for driving the movable knife to move along the knife rest towards the stationary knife. The blade face of the stationary knife is provided with a semicircular first escape hole and the blade face of the movable knife is provided with a semicircular second escape hole. The radius of the first escape hole and the radius of the second escape hole are slightly greater than that of a steel core of the to-be-stripped steel-core aluminum stranded conductor. Thestripper provided by the invention is simple in structure, small in size and convenient to carry. The stripper can be used in combination with a field pump station for working so as to realize quick stripping of steel-core aluminum stranded conductors. The working efficiency is improved.

Description

technical field [0001] The invention relates to a wire stripper, in particular to a hydraulic wire stripper for steel-cored aluminum stranded wires of overhead high-voltage transmission lines. Background technique [0002] The overhead conductors of my country's transmission lines are "steel-reinforced aluminum stranded wires". The length of each steel-reinforced aluminum stranded wire is about 1500 meters to 2000 meters. continue. Generally speaking, the outer layer of the steel-cored aluminum stranded wire is an aluminum wire winding strand, which acts as a conductor, while the inner layer is a steel strand winding strand, whose function is to bear the working tension of the entire wire. When using a wire crimping machine for splicing operations, firstly connect the steel strand winding strands with a crimping machine, and then connect the outer layer aluminum wire winding strands with a crimping machine, and then connect the outer layer of aluminum wire winding strands. ...

AI Technical Summary

Problems solved by technology

[0003] The wire stripper is an essential tool for the pre-stripping treatment of the wires. Generally, before connecting the wires, the aluminum stranded wires need to be stripped first through the wire stripper, and then the wire connection tube is used for crimping and connection. Among them, the quality of aluminum strand stripping directly affects the connection quality of conductors. At present, the stripping of aluminum strands mainly adopts the manual stripping method. The construction personnel use manual saws to cut the aluminum strands one by one, so as to realize the protection of the aluminum strands. Stripping, however, the work efficiency of the manual stripping method is low, and the quality of work cannot be guaranteed

For decades, the traditional wire stripping methods have been divided into two types. One is to use a hand-held hacksaw frame to manually cut the outer aluminum wire. The disadvantage is that the end face is incomplete, and it is easy to grasp and damage the steel strands, and the efficiency is low. , too primitive

The other is to carry out circumferential ring cutting with a hand-held ring cutter holder, but the precision deviation of the knife is too large, and it is still easy to damage the steel strand, and the efficiency is also low, and the general working time takes about ten minutes.

[0004] At present, there is also the introduction of hand-held mechanical ring stripping equipment, which cuts and strips the aluminum wire winding strands by clamping and fixing the aluminum stranded wire by manual ring cutting, but there will still be damage to the steel core or stripping. Low efficiency and other problems, especially the low positioning accuracy of equipment, easy to cut and damage the winding strands of steel strands, high labor intensity, and low work efficiency

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