行星齿轮变速箱 meaning in English

planetary transmission

Research on design of planetary gearbox
行星齿轮变速箱的设计研究
Modeling and simulation of shifting process of the planetary gearbox
行星齿轮变速箱换挡过程的建模与仿真
The planetary - driven transmission suitable for the 420 hp bulldozer will be designed by the research of this task
通过对本课题的研究，设计出适合于420马力的履带推土机的行星齿轮变速箱。
Ltd . the aim of this research is to find out the causes of abnormal axial force that results in fracture of bolts that anchor the shaft of planet gear and rupture of gear by means of force and deformation analysis , thus propose improving project of zl50 wheel type loader to enhance design quality . prime study content in the paper is described in the following
本课题研究的目的是通过该变速箱的均载性能、各部件的受力、变形以及齿轮接触应力的分析，寻找出直齿行星轮机构产生异常轴向力，从而导致变速箱行星轴止动螺栓断裂及部分行星轮轮齿崩裂的原因，为柳工zl50装载机行星齿轮变速箱的改进提出方案，提高设计质量和设计水平。