Belt cooling fixture for welding large-section aluminum conductor cable

Abstract

The present invention relates to a belt cooling fixture for welding a large-section aluminum conductor cable. The belt cooling fixture comprises an upper fixture and a lower fixture which are respectively provided with a semi-circular arc-shaped groove and are mutually cooperated. The belt cooling fixture is characterized in that: the upper fixture is divided into a left part and a right part withthe same structure; the upper fixture and the lower fixture respectively have a hollow structure to form an upper cooling channel and a lower cooling channel respectively; the positions of the uppercooling channel and the lower cooling channel extending out of the corresponding fixture body are connected with a water channel taking pipe to form an upper water inlet, an upper water outlet, a lower water inlet and a lower water outlet respectively; the upper water inlet, the upper water outlet, the lower water inlet and the lower water outlet are communicated with each other through a rubber hose and connected with an external circulating water pump to form an integral circulating water path; a forming groove is arranged in a middle portion of the lower fixture; and the depth of the forming groove is larger than the depth of the semi-circular arc-shaped groove by 3 to 5 mm, and the width is 30 to 40 mm. According to the technical scheme of the present invention, the water-cooling design of the curved surface is used, the temperature is lowered fast, and the design of the forming groove is convenient for the cable centering and subsequent welding work.

Description

technical field [0001] The invention relates to a clamp for cable welding, and in particular discloses a clamp with cooling for welding large-section aluminum conductor cables. Background technique [0002] At present, aluminum conductor cables occupy a dominant position in foreign power cables, and aluminum conductor cables are also used in China, so the development of connection technology for aluminum conductor cables has a broad market. In the prior art, crimping is usually used to connect copper conductor cables, but after crimping is used for large-section aluminum conductor cables, the contact resistance at the crimping point will increase, which will affect the electrical conductivity of the cable, so welding is used. It is more appropriate to connect the aluminum conductor cable by way. [0003] There are several important issues to be addressed when making welded connections to cables with large cross-section aluminum conductors. The first is the cooling problem....

AI Technical Summary

Problems solved by technology

Since the clamp is used to hold the two sections of cables to be welded separately, it is easy to have difficulties in centering large cross-section conductors during welding, and the conductors may not be straight after welding, resulting in poor performance. Higher, welding is more difficult, and operators need to rely on work experience to operate, which is difficult to ensure the stability of the quality of cable welding process to a certain extent

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