Integrated axle assembly and vehicle

Abstract

The invention relates to the electric vehicle driving technology, and particularly discloses an integrated axle assembly which comprises a motor, a speed reducer connected with the motor and a drivingaxle connected with the speed reducer. The speed reducer comprises a first-stage speed reduction gear assembly and a second-stage speed reduction gear assembly; the primary reduction gear assembly comprises a gear ring, a first planet gear, a sun gear and a second planet gear, the sun gear is externally meshed with the first planet gear and the second planet gear, and the gear ring is internallymeshed with the first planet gear and the second planet gear; the second-stage speed reduction gear assembly comprises a secondary speed reducer gear and a speed reducer output shaft; the gear ring isin gear connection with the second-stage speed reducer so as to be suitable for connecting the first-stage speed reduction gear assembly with the second-stage speed reduction gear assembly. In addition, the invention further discloses a vehicle comprising the integrated axle assembly. According to the integrated axle assembly, the distance between the motor and the drive axle can be reduced, thestructure is simpler, and the performance is more reliable.

Description

Technical field[0001]The present invention relates to electric vehicle driving technology, in particular, to an integrated bridge assembly. In addition, the invention also relates to a vehicle.Background technique[0002]At present, new energy vehicles have become the mainstream trend in the development of the automotive industry. New energy vehicles refer to vehicles that use unconventional vehicle fuels as power sources and integrate advanced technologies in vehicle power control and driving to form vehicles with advanced technical principles, new technologies, and new structures.[0003]Most of the integrated axle reducers in existing new energy vehicles are composed of two (or more) transmission gear pairs. The two (or more) transmission gear pairs will cause the distance between the motor and the drive axle to become larger, resulting in The space of the reducer in the X direction is increased, and the stability of the integrated bridge is reduced because the center of gravity of t...

AI Technical Summary

Problems solved by technology

[0003] Most of the integrated bridge reducers in existing new energy vehicles are composed of two (or more) transmission gear pairs, two (or more) transmission gear pairs It will cause the distance between the motor and the drive axle to increase, resulting in an increase in the space of the reducer in the X direction, and at the same time, the stability of the integrated bridge will be reduced because the center of gravity of the integrated bridge is far away from the drive axle. At the same time, two groups (or more) group) transmission gear pair makes the integrated bridge reduction mechanism more complicated and increases the production cost

[0004]Based on the above reasons, the existing technology is difficult to effectively guarantee the stability and reliability of the integrated bridge, and the process is more complicated and the production cost is higher

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