A Suggestion With Plane Quadratic Enveloping Worm Transmission for 5-50tf Trolley of Overhead Travelling Crane

This paper is briefly analysed the problems of travelling mechanism redactor on 5-50tf trolley overhead travelling Crane. The principle of plane quadratic enveloping worm transmission and its characteristic.
It is suggestion that by means of the plane quadratic enveloping worm instead of of vertical type spur gear reductor in order to improving its transmission performance.