Numerical Simulation of Stress of Cambered surface Connector and the Machining Principle of Tooth Structure

摘要

The cambered surface connector is designed for improving structural intensity and working life of the connector tooth-shape.Elastic touch mechanics theory is adopted and the touch non-linear module of ANSYS finite element software is used to simulate tooth root stress distribution of Φ30×108 connector under the condition of fatigue,the unit stress distribution condition of ladder type connector and top cambered connector at different teeth parts.The simulation results demonstrate that the stress value of cambered surface on tooth top reduced 32.5% than ladder tooth,and reduced 14.5% than top cambered tooth;the stress value of cambered surface on tooth root reduced 24.9% than ladder tooth,and reduced 8.86% than top cambered tooth.The results showed that there is less stress value to cambered surface connector,and the tooth structure of cambered surface connector is proved to be able to reduce the stress concentration more effectively and to prevent deflection load problem of tooth meshing,conducive to improving the fatigue performance.Based on the simulation results.The machining theory of cambered surface connector is worked out,the trail equation of rolling cutting tool edge is set up,and the theoretical basis for machining cambered surface connector is provided.