Coaxially integrated new energy vehicle speed reducer

Abstract

The invention discloses a coaxially integrated new energy vehicle speed reducer. The speed reducer comprises a speed reducer shell, a differential mechanism, an input shaft assembly and an output shaft assembly, the speed reducer and the differential mechanism are integrally arranged, and the input shaft assembly and the output shaft assembly are coaxially arranged. The output shaft assembly comprises a first output shaft and a second output shaft. One side of the speed reducer shell and a motor shell end cover are integrally arranged. The coaxially integrated new energy vehicle speed reducer is reasonable in structural design, a technical scheme that the input shaft and the output shaft are colinear is adopted to replace traditional straight line arrangement or triangle arrangement so as to reduce the lateral dimension of the whole speed reducer, one side of the shell and a driving motor shell are integrated, the strength is enhanced, and the overall weight is reduced; the differential mechanism is integrated, by means of a modular technology, the differential mechanism can be modularly assembled with the motor directly, the whole assembly procedure of an electric drive system is shortened, and the speed ratio can be adjusted within a certain range by adjusting gear parameters.

Description

technical field [0001] The invention relates to a reducer, in particular to a coaxial integrated new energy vehicle reducer, which belongs to the technical field of auto parts. Background technique [0002] With the development of the national new energy policy, automobiles are developing toward electrification and intelligence. At present, hybrid and electric vehicles are popular in the market, and most of the reducers that match hybrid and electric vehicles are imported. For parallel shaft reducer, such as figure 1 As shown, its overall volume is relatively large, requiring a larger cabin space for layout, and due to its weight, it requires more energy consumption for the entire vehicle. At the same time, R&D personnel in the industry need to increase the maximum speed and maximum torque of the reducer and match the motor so that it can meet the requirements of pure electric high-speed / low-speed high-torque driving. [0003] Therefore, how to further improve on the basis...

AI Technical Summary

Problems solved by technology

[0002] With the development of the national new energy policy, automobiles are developing toward electrification and intelligence. At present, hybrid and electric vehicles are popular in the market, and most of the reducers that match hybrid and electric vehicles are imported. For parallel shaft reducer, such as figure 1 As shown, its overall volume is larger, requiring more cabin space for layout, and due to its weight comparison, it requires more energy consumption for the whole vehicle

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