关键词: 行星架, 行星销轴, 齿向载荷分布系数, 过盈配合, 间隙配合

Abstract: In order to reduce the influence of planet carrier deformation on the contact stress distribution of the planet gear , the changes of the load distribution coefficient of planet gear under different support methods of planet pin shaft by the planet carrier were analyzed. The accurate modeling was carried out using the KissSoft software and the 3D software. The ANSYS software was used to calculate the contact stress distribution of planetary gear teeth under two supporting methods, interference fit at both sides and clearance fit at one side. The variation of the load distribution coefficient of planet gear teeth under the two supporting methods was compared. Research showed that the contact stress distribution on the tooth face by using the supporting method of clearance fit at one side was more uniform and the stress on the tooth face was smaller.
This supporting method can effectively reduce the influence of planet carrier deformation on the contact stress distribution of
planet gear teeth and improve the working life of planetary gear.

Key words: planet carrier, planet pin shaft, face load factor, interference fit, clearance fit