Meshing characteristics of intersected beveloid gear and involute cylindrical gear pair considering manufacturing errors
摘要
Based on hobbing process, the mathematical model of beveloid gear tooth surface considering manufacturing errors is established. Additionally, the computational approach for determining the tooth surface geometry is introduced to assess the effects of these errors on the tooth surface morphology. Subsequently, the loaded tooth contact analysis (LTCA) model is constructed for intersected beveloid gear and involute cylindrical gear pair, accounting for manufacturing errors. The effects of different levels of manufacturing errors on meshing characteristics of gear pair are analyzed comparatively. The findings indicate that pressure angle error of hob primarily affects tooth surface morphology along the tooth profile direction, whereas installation angle error of gear blank and inclination angle error of hob predominantly alter the tooth surface morphology in the tooth width direction. The contact pattern is limited to the narrow area in the intermediate of tooth surface due to the pressure angle error of hob. Inclination angle error of hob and installation angle error of gear blank can reduce the contact area and increase the contact force.