Pertaining to a new type planetary gear drive with small teeth number difference system

considered the effects of the motor

reducer and the couplings to the system

the reliability model and fault tree mode of the system are established. Then by quantitative and qualitative analysis

the weaknesses of the system are found out. Finally the effective methods are presented to improve the reliability of the system. And the analysis results are checked and evaluated to provide a reference for related structure design and reliability study.