The Analysis of Electric Differential Drive Technology and Characteristics on Overhead Crane

Abstract

Using electrical differential drive to reduce the weight of the trolley on bridge crane. The analysis of rotational speed of reel on both sides of the crane girder in different conditions show that when the trolley and the hook make joint motion rotational speed of reel is uniquely determined by the condition that the middle pulley of the hook does not rotate. Studying the forces of the rope under joint motion and the conditions that the middle pulley does not rotate in the view of mechanics, then, calculating the minimum of hoist that makes the trolley run normally. Studying the power of the reel drive motor under the joint motion, calculating minimum power required for a single motor.