Lightweight connection method and device based on limited space driving motor and speed reducer

A drive motor and limited space technology, applied in the field of electric drive powertrain component connection method and device structure, can solve the problems of long axial structure size, lack of miniaturization and light weight of electric drive wheels, etc., and achieve weight reduction and shortening The effect of axial structure size and simplified structure

Pending Publication Date: 2021-07-23
HUZHOU CRRC SPECIAL ELECTRICAL EQUIP CO LTD
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  • Abstract
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  • Claims
  • Application Information

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Problems solved by technology

[0008] Through the careful analysis of the above-mentioned patents, although these patents all involve the connection of the driving motor of the electric wheel and the reducer, and also propose some improved technical solutions, these technical solutions are still considered from the perspective of separate support of the driving motor and the reducer , so the structural size, especially the axial structural size is still very long, it is not completely suitable as a high power density electric drive wheel structure, especially the lack of consideration of the overall miniaturization and weight reduction of the electric drive wheel, so there is still room for further development research and improve

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  • Lightweight connection method and device based on limited space driving motor and speed reducer

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Embodiment 1

[0029] From attached figure 1 It can be seen that the present invention relates to a drive motor and reducer connection device based on limited space, including drive motor end cover 1, drive motor rotor 2, reducer left half shell 3, reducer right half shell 4 and reducer input The shaft 5 is characterized in that: the end cover 1 of the drive motor is provided with a notch 6 connected to the right half shell 4 of the reducer, and the right half shell 4 of the reducer is installed on the drive motor through fasteners (not shown in the figure). inside the seam 6 of the end cover; the left half shell 3 of the reducer is also installed in the seam 6 of the drive motor end cover, and is fixed together with the drive motor end cover 1 through fasteners 7; the left half shell 3 of the reducer Together with the right half shell 4 of the reducer and the end cover 1 of the drive motor, the whole shell of the reducer is formed, while the left half shell 3 of the reducer and the end cove...

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PUM

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Abstract

Based on a light-weight connection method and structure of a driving motor and a speed reducer in a limited space, according to the characteristics of a high-power-density heavy-load electric wheel, the speed reducer and the driving motor of the electric wheel are axially compressed and integrated together in the limited space position, the axial structure size of the electric wheel is reduced, and the overall weight of the electric wheel is reduced; and the overall miniaturization and light weight of the high-power-density heavy-load electric wheel are realized. According to the light-weight connection method and device based on the limited space driving motor and the speed reducer, on the premise that the high-power-density heavy-load characteristic is kept, the structure is more compact, the axial size is shortened, and the weight is greatly reduced.

Description

technical field [0001] The invention relates to a connection method and device structure of electric drive powertrain components, in particular to a lightweight connection method and device based on a limited space driving motor and a reducer, which is based on a limited space driving motor and a reducer The lightweight connection method and device can effectively reduce the overall structure of driving electric wheels and reduce the weight of the electric wheels; they belong to the technical field of electric drive manufacturing. Background technique [0002] The electric drive using electric power as the driving power is a new energy drive mode widely promoted and applied at present, and its application range is getting wider and wider, and the "two-in-one electric drive assembly" composed of the drive motor and the reducer, and the The "three-in-one electric drive assembly" composed of drive motor, reducer and brake device is also gradually formed. However, as the applic...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B60K7/00B60K17/04B60K17/06
CPCB60K7/0007B60K17/046B60K17/06
Inventor 倪大成周志宇董平李文陆雄建彭乐彭鸿基倪淑银
Owner HUZHOU CRRC SPECIAL ELECTRICAL EQUIP CO LTD
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