Research on the Swing Characteristics of Lifting Load Based on the Contact Relationship Between Pulley and Wire Rope

Abstract

AbstractIn the process of lifting operations, the complex contact relationship of the rope-pulley system is inevitably related to the swing of the lifting load. However, in previous research, the quality of the pulley and wire rope is often overlooked and the wire rope is simplified as a spring. The object of this paper is to use virtual prototyping technology to establish the rope-pulley system model that the mass and contact relationship of the pulley and wire rope are considered, and to investigate the influence of the contact relationship of the rope-pulley system on the swing characteristics of the lifting load. According to the characteristics of the rope-pulley system, the matching parameters and winding ratio of the rope-pulley system are selected as the research variables. The research method of this paper is to establish three discrete system simulation models of the rope-pulley system with different winding ratio by ADAMS/Cable module. Simulation results show that as the winding ratio of the rope-pulley system increases, the swinging amplitude of the lifting load increases; and the change in wire rope diameter has a more obvious effect on the sway of the lifting load than the change in the angle of pulley groove. The results of the study can provide a certain reference for the study on the swing of lifting loads with the rope-pulley system.