Electric motorcycle internal rotor motor biconical friction transmission self-adaptive automatic speed-changing drive assembly

Abstract

The invention discloses an electric motorcycle internal rotor motor biconical friction transmission self-adaptive automatic speed-changing drive assembly, which comprises an internal rotor driving motor, a box body and a transmission shaft, and also comprises a slow-gear transmission mechanism and a mechanically intellectualized self-adaptive speed changing assembly set on the transmission shaft, wherein a friction surface of a driving friction disc and a friction surface of a driven friction disc of the mechanically intellectualized self-adaptive speed changing assembly are transmitted by utilizing biconical surface friction; the friction discs are adopted to form a structure with separative combination, thus the drive assembly provided herein has the advantages of flexible response; the size in the axial direction is small; at the same time, a structure of mutually meshed circle-shaped projection and circle-shaped recess of the friction surfaces with radial cross sections shaped as stairs is adopted to form a biconical surface, thus the joint of the friction surfaces are dispersed; not only the driving friction disc and the driven friction disc are ensured to be located at the same shaft, but also the friction surfaces are increased; good transmission is ensured to be maintained under the condition of limited elastic force; the flexibility of joint and separation is improved; the transmission accuracy is enhanced; and the drive assembly provided herein is suitable for the electric motorcycle field.

Description

technical field [0001] The invention relates to a motor vehicle transmission, in particular to an electric motorcycle inner rotor motor double-cone friction transmission self-adaptive automatic variable speed drive assembly. Background technique [0002] In the prior art, automobiles, motorcycles, and electric bicycles basically directly control the throttle or current control speed through a speed control handle or an accelerator pedal, or use a manual mechanical automatic transmission mechanism to realize speed change. The operation of the handle or accelerator pedal depends entirely on the driver's operation, which often causes a mismatch between the operation and the driving conditions, resulting in unstable operation of the motor or engine, and stalling. [0003] When the motor vehicle is operated by the rider without knowing the driving resistance, the speed change device is operated and controlled only based on experience, which inevitably has the following problems: ...

AI Technical Summary

Problems solved by technology

[0006] In view of this, the purpose of the present invention is to provide a self-adaptive automatic variable speed drive assembly of double-cone friction transmission of the inner rotor motor of the electric motorcycle, which can not only automatically change gears without cutting off the driving force when the driving resistance changes Variable speed solves the problem that small changes in torque-rotational speed cannot meet the problem of road use under complex conditions; long-term operation can still ensure stable support, reduce running noise, ensure running comfort and improve transmission efficiency, thereby reducing energy consumption; change the engagement and separation of fast and slow gears Due to the long stroke of the axial joint surface of the mechanism, the separation and joint are fast and thorough, which is conducive to improving the transmission accuracy. After a long period of use, the overall shape and position tolerance will still be guaranteed, thereby ensuring the stability of the transmission.

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