High-power heavy-load electric wheel driving motor lightening method and driving motor

Abstract

According to a high-power heavy-load electric wheel driving motor lightening method and a driving motor, non-acting parts on the two sides of a driving motor rotor are removed by utilizing the characteristics of a high-power heavy-load electric wheel driving motor rotor structure, so that the driving motor rotor with the two inwards-concave sides is formed; and then a supporting bearing of the driving motor rotor is moved into the concave spaces of the removed parts on the two sides of the driving motor rotor, and meanwhile, the driving motor mandrel is also compressed into the concave spaces of the removed parts on the two sides of the driving motor rotor, so that the axial structure size of the driving motor is compressed, the total weight of the driving motor is reduced, and the light weight of the driving motor is realized. According to the high-power heavy-load electric wheel driving motor lightening method and the driving motor, the structure of the driving motor can be simplified in a limited space, the weight of the driving motor is reduced, the power density and the heavy load performance are improved, the structure is compact, and the weight is greatly reduced under the same power.

Description

technical field [0001] The invention relates to a lightweight method and structure of an electric drive powertrain drive motor, in particular to a lightweight method and a drive motor for a high-power heavy-duty electric wheel drive motor. The power heavy-duty electric wheel drive motor is light The quantization method and the driving motor can effectively reduce the overall structure of the driving electric wheel and reduce the weight of the electric wheel; it belongs to the technical field of electric drive manufacturing. Background technique [0002] The drive motor is the key part of the electric wheel, and it also occupies the largest volume. In the current "two-in-one electric drive assembly" composed of the drive motor and the reducer, and the "two-in-one electric drive assembly" composed of the drive motor, reducer and brake device "Three-in-one electric drive assembly" occupies a very important position. Especially with the application of electric drive wheels more...

AI Technical Summary

Problems solved by technology

Although the name of the patent is "built-in brake", it does not integrate the reducer and brake device, so this is not a problem in places where the axial size is not limited, but how to dissipate heat and fix it needs to be considered, so According to the technology disclosed in this document, it is impossible to know how to reasonably release the axial position and size of the aerial platform, and install the brake on the inner surface of the drive motor.

[0008] Through the careful analysis of the above-mentioned patents, although these patents all involve some motor structures for electric wheels, and also propose some improved technical solutions, these technical solutions are not completely suitable as high-power-density heavy-duty electric drive wheel structures. , especially the lack of consideration of how to further increase the power density in a limited space to achieve high power density and heavy loads, the overall miniaturization and light weight of the electric drive wheel, so further research and improvement is still needed

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