Integrated power transmission system of motor and planetary reducer

Abstract

The invention discloses a motor and planetary reducer integrated power transmission system which comprises a motor and a planetary reducer. The front end of a motor casing of the motor is fixedly connected with a front end cover of the motor, a through hole is formed in the front end cover of the motor, a casing of the planetary reducer is fixedly connected with the front end cover of the motor, an output shaft of the motor is supported by the front end cover through a supporting bearing in a rotating mode, and the front end of the output shaft of the motor extends into the planetary reducer to be fixedly connected with an input gear of the planetary reducer. The motor and planetary reducer integrated power transmission system is stable and reliable in operation, reduces the axial size and the longitudinal size of the motor and reduces weight and cost.

Description

technical field [0001] The invention relates to an electric vehicle transmission system. Background technique [0002] Electric vehicles include pure electric vehicles, hybrid electric vehicles and fuel cell electric vehicles. Its driving motor often adopts AC induction motor and AC permanent magnet motor, and its reducer often adopts a parallel shaft structure. [0003] Both of these two motors can adopt frequency conversion technology to realize stepless speed regulation. However, in order to reduce the research and development cost of current electric vehicles, they are mainly designed and manufactured based on the well-developed fuel vehicle body and frame. The power of the vehicle The installation space of the transmission system is small, the speed requirement is high, the acceleration requirement is large, and at the same time, the climbing ability is required, and this kind of motor is difficult to meet the requirements of vehicle installation and driving. Content...

AI Technical Summary

Problems solved by technology

[0003] Both of these two motors can adopt frequency conversion technology to realize stepless speed regulation. However, in order to reduce the research and development cost of electric vehicles, the current electric vehicles are mainly designed and manufactured based on the well-developed fuel vehicle body and frame. The installation space of the transmission system is small, the speed requirements are high, the acceleration requirements are large, and at the same time, the climbing ability is required. This kind of motor is difficult to meet the requirements of vehicle installation and driving.

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