Electric motorcycle concave-convex friction transmission side-mounted adaptive variable speed drive assembly

Abstract

The invention discloses a concave-convex type friction drive side hanging type self-adaption automatic variable speed drive assembly of an electric motor car. The concave-convex type friction drive side hanging type self-adaption automatic variable speed drive assembly comprises a box body, a transmission shaft, a slow gear transmission mechanism and a mechanical intelligent self-adaption variable speed assembly. The box body is provided with a mounting portion for being arranged on the wheel hub side in a side hanging mode. A concave-convex embedded friction surface friction drive pair is adopted for the friction surface of a drive friction disc and the friction surface of a driven friction disc of the mechanical intelligent self-adaption variable speed assembly. A separation and combination structure is formed through the friction discs, the automatic variable speed drive assembly has the advantages of being sensitive in reaction and small in axial size; meanwhile, the concave-convex embedded structures of the radial sections of the friction surfaces are adopted, joint of the friction surfaces is guaranteed under the condition of limited radial size, guarantee of the coaxiality of the drive friction disc and the driven friction disc is facilitated, increase of the friction surfaces is facilitated as well, and it is guaranteed that good transmission is kept under the condition of limited elastic force; flexibility of separation and combination is further facilitated, transmission accuracy is improved, and the automatic variable speed drive assembly is applicable to the field of electric vehicles.

Description

technical field [0001] The invention relates to a motor vehicle transmission, in particular to a concave-convex friction transmission side-mounted self-adaptive variable speed drive assembly for an electric motorcycle. 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 and controlled by the rider only based on experience without knowing the driving resistance, the following problems inevitably exist: 1. When starting, going uphill and with a large...

AI Technical Summary

Problems solved by technology

[0006] In view of this, the purpose of the present invention is to provide a concave-convex friction transmission side-mounted adaptive variable speed drive assembly of an electric motorcycle, which can not only automatically perform gear shifting without cutting off the driving force due to changes in driving resistance, Solve the problem that small torque-rotational speed changes cannot meet the problem of road use under complex conditions; long-term operation can still ensure stable support, reduce operating noise, ensure operating comfort and improve transmission efficiency, thereby reducing energy consumption; change the shaft of the fast and slow gear engagement and separation mechanism The current situation of the long stroke to the joint surface, the separation and joint are fast and thorough, which is conducive to improving the transmission accuracy, and the overall shape and position tolerance will still be guaranteed after long-term use, so as to ensure the stability of the transmission

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