Influence of Tooth Profile of Double Helical Synchronous Belt on Drive Performance based on RecurDyn

Abstract

Based on the multi-body dynamics software RecurDyn, a virtual prototype model of new type， RU type and ZA type double helical synchronous belt drive is established, and rigid-flexible coupling motion modeling and dynamic simulation are carried out. Under the same conditions, for the three tooth profiles double helical synchronous belts, the stress distribution cloud diagram of the belt strong layer and the tooth and the stress distribution law of the special point of the tooth root are studied in the fully meshed area, and the study of the stress variation law of special points in the belt movement cycle. In terms of belt drive performance, the law of lateral vibration and tension fluctuation of the belt and the law of angular velocity change of the driven pulley are studied. The results show that the tooth root stress of the double helical synchronous belt is smaller, the bearing capacity is the strongest, and the amplitude of the lateral vibration, tension fluctuation and driven pulley speed fluctuation of the belt is the lowest. It shows that the tooth profile of the double helical synchronous belt and the pulley has good meshing drive performance and smooth movement, and high drive accuracy.

Keywords

• New type double helical synchronous belt