Mechanical expanding shaft based on air expanding shaft principle

Abstract

The invention discloses a mechanical expanding shaft based on an air expanding shaft principle. The mechanical expanding shaft based on the air expanding shaft principle comprises a main shaft, connection keys and a surface straight gear, wherein an auxiliary shaft is arranged on the right side of the main shaft, a distance sleeve is arranged on the left side of a T-shaped outer cone, expanding keys are installed on the outer sides of T-shaped inner cones through screws, the expanding keys run through a through groove, a spring is installed on the outer side of the left side of the main shaft, the other T-shaped outer cone is arranged on the right side of a connection sleeve, the distance sleeve is arranged between the two T-shaped outer cones, and slide grooves are formed in inner side faces of a spiral cylinder, the T-shaped outer cones, the distance sleeve and the connection sleeve. The mechanical expanding shaft based on the air expanding shaft principle is provided with guiding keys and the slide grooves, can effectively guide each T-shaped outer cone by adopting the two structures of the guiding keys and the slide grooves, and thereby ensures moving stationarity of the T-shaped outer cones, and simultaneously uses T-shaped grooves for cooperation, accurately positions the expanding sleeves, enables the expanding sleeves to simultaneously expands and shrinks, effectively improves concentricity and cylindricity, and improves reeling quality.

Description

technical field [0001] The invention relates to the technical field of mechanical expansion shafts, in particular to a mechanical expansion shaft based on the principle of air expansion shafts. Background technique [0002] The slitting machine is an important equipment in the aluminum processing industry. It is used to slit large and wide aluminum coils into finished coils of different widths. The process flow is mainly uncoiling, slitting, and winding. Winding is to wind the slit aluminum foil (tape) on the sleeve, and put the sleeve on the winding shaft before winding. During the winding process, the sleeve and the winding shaft rotate synchronously, and there should be no relative movement , the sleeve can be easily removed from the coiling shaft after the coiling is completed. In order to achieve the above purpose, the coiling shaft can adopt two forms, one is a mechanical expansion shaft, and the other is an air expansion shaft. However, these two There are still some...

AI Technical Summary

Problems solved by technology

[0006] The purpose of the present invention is to provide a mechanical expansion shaft based on the principle of air expansion shaft to solve the above-mentioned background technology. The limit value of the expansion and contraction range of the existing mechanical expansion shaft is controlled by the inner and outer lock sleeves at both ends of the shaft. The problem of not using steel or aluminum sleeves

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