Transmission mechanism of electric motor car

Abstract

The invention discloses a transmission mechanism of an electric motor car. The transmission mechanism is mainly comprises a first gear, a second gear, a third gear, a first one-way bearing, a second one-way bearing, a first reduction gear, a second reduction gear and a driving gear. When a spindle of an electro-motor rotates along a first clock direction at a first rotation speed, the first gear, the first one-way bearing and the second gear are driven to rotate along the first clock direction to drive the second reduction gear and the driving gear to rotate along the first clock direction at a second rotation speed. When the spindle of the electro-motor rotates along a second clock direction at the first rotation speed, the first gear and the first reduction gear are driven to rotate along the second clock direction to drive the third gear and the second one-way bearing to rotate along the first clock direction and drive the second gear, the second reduction gear and the driving gear to rotate along the first clock direction at a third rotation speed. The transmission mechanism of the electric motor car can achieve a function of adjusting output torque by controlling rotation directions of the spindle of the electro-motor.

Description

technical field [0001] The invention relates to a transmission mechanism, in particular to an electric motorcycle transmission mechanism with a secondary reduction ratio to increase torque. Background technique [0002] In recent years, based on the rise of world environmental protection awareness and the impact of the energy crisis, advanced countries in the world have invested large sums of money and manpower in the research and development of low-pollution, low-fuel consumption, and high-efficiency vehicles. Take the current emerging electric vehicle as an example, which uses electric energy as its driving energy, and has no exhaust gas emission and pollution, so it is considered the best means of transportation. [0003] At present, the electric vehicle mainly uses the motor as the power source, which is transmitted to the wheels through the transmission device to drive the vehicle forward. In order to increase the torque or reduce the speed of the motor, the motor is u...

AI Technical Summary

Problems solved by technology

Conversely, if the secondary reduction ratio is reduced, the top speed can be increased, but the acceleration force of the car will be lost

Taking the general electric motorcycle as an example, its transmission chainring usually cannot change the gear position, and it only has a fixed primary reduction ratio. The situation will happen too often, so it is hardly practical

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