Contact operation for producing an electric connection between a metal shaft and a metal tube running on the shaft works between stationary and moving/rotating parts

摘要

An electric connection is produced by a pulling/traction process so that a tube (2) has a slightly elliptic cross section. If the tube is pushed over a shaft (1), then the tube easily expands by elasticity and touches the shaft on two opposite sides. This transfers a current from the rotating shaft onto the tube.