Contact Stress Analysis of Steel/Plastic Cylindrical Gear Transmission with Variable Hyperbolic Circular-Arc-Tooth-Trace
The variation of the maximum contact stress in the meshing process of cylindrical gear transmission with Variable Hy-perbolic Circular-Arc-Tooth-Trace(VH-CATT)with a single plastic gear is studied.Based on the tooth surface equation of the gear transmission,an accurate three-dimensional model of the gear is established.According to the gear meshing principle,the calculation method of the gear transmission coincidence degree is derived,and the change law of the meshing logarithm in the whole meshing process from meshing in to meshing out is analyzed.ABAQUSis used to analyze the variation of the maximum con-tact stress in the process of gear meshing.The results show that the maximum contact stress first increases and then decreases with the change of rotation angle in the process of gear meshing,and the data fitting is a convex curve,and the stress changes greatly with the change of meshing logarithm.The deformation coordination relationship of gears with different materials is compared,and plastic gears are suitable for small and medium loads.With the increase of torque,the peak value of maximum contact stress increases and the increasing trend slows down.The variation of maximum contact stress under different tooth line radius is ana-lyzed.With the increase of tooth line radius,the peak value of maximum contact stress decreases,and the decreasing trend is ap-proximately linear.
Variable Hyperbolic Circular-Arc-Tooth-Trace(VH-CATT)Meshing LogarithmCoincidence De-greeMaximum Contact StressChange Law
万方数据
维普
