Steel belt connecting device and method

Abstract

The invention provides a steel belt connecting device and method. A clamp consists of a countersunk screw rod, an end cover and a base, wherein reinforcing round steel is arranged in two holes formed by a semicircular clamping groove of the end cover and a transition circular arc of the base. During connection, a folded double-layer steel belt into which an anti-falling rod is inserted is bent and wound on the reinforcing round steel, the steel belt is tightly wound by using a punching rod with an arc-shaped groove and is arranged on the clamp base, the end cover is covered, the countersunk screw rod is fastened till a small gap is formed between the end cover and the base, the loose steel belt in the clamp is tightened by applying tension, and the countersunk screw rod is tightened. The device provided by the invention has low manufacturing cost, can be manufactured by self, and is reused; the method is convenient to comprehend, and is convenient and rapid for connecting; the application range is wide, and random matching is realized; and a broken belt is connected firmly, the tensile strength is high, and the bearing capability is high. The device and the method are suitable foroccasions of high-temperature state in a furnace, severe environments with higher corrosion or narrow spaces.

Description

technical field [0001] The invention belongs to the field of steel rolling auxiliary equipment, and in particular relates to a device and a connecting method for connecting ends of broken thin steel strips together. Background technique [0002] In the production process of cold-rolled galvanized continuous annealing and silicon steel continuous annealing units, the steel strip running at high speed often has accidental "broken belt" accidents, so that the entire galvanizing or annealing unit has to be forced to stop production. In the "broken strip" connection process of steel strips, most of them are connected by argon arc welding machine "lap welding". Due to various defects such as heating oxidation and overburning on the surface of the steel strip at the broken strip, the surface of the steel strip needs to be cleaned before argon arc welding, and then the welding operation can be performed. The processing and welding work takes a long time, more than 40 minutes each t...

AI Technical Summary

Problems solved by technology

The processing and welding work takes a long time, more than 40 minutes each time, which directly affects the operating rate of the unit

At the same time, the argon arc welding at the broken belt generally adopts the "spot welding" method, and there are problems such as uneven distribution of solder joints, weak solder joints, low tensile strength of the welding surface, and easy scratching when the overlapping surface is tilted around. There are many disadvantages, such as secondary breakage of the welded steel strip during operation.

Therefore, the problem of steel belt connection after broken belt has seriously restricted the operating rate of the unit, and has become an urgent problem to be solved in production.

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