Electric vehicle speed changing box with speed gear

Abstract

The invention relates to an electric vehicle speed changing box with a speed gear. The outer shell of the speed changing box is internally provided with a motor output shaft, a bridge wheel shaft and a speed changing box output wheel shaft, wherein the motor output shaft is respectively connected with the outer shell and a motor; a motor high-speed output wheel, a motor low-speed output wheel and a motor driving wheel are connected on the motor output shaft; the motor high-speed output wheel and the motor low-speed output wheel are respectively provided with a groove and a bulge, and are correspondingly spliced with the motor driving wheel in a slidable mode; the outer side surface of the motor driving wheel is fixedly connected with a shifting fork; transmission bridge wheels (1,2,3,4) which are in coaxial transmission are sequentially connected on the bridge wheel shaft; the transmission bridge wheels (1,2,3,4) are respectively meshed and in transmission connection with the motor high-speed output wheel, the motor driving wheel and the motor low-speed output wheel; and the transmission bridge wheel (3) is meshed and in transmission connection with the output wheel of the speed changing box. The speed changing box of the invention has simple structure, can realize gear shifting conveniently, satisfies requirements on different speeds in the processes of starting and climbing of the electronic vehicle, brings convenience for people and improves the performances of the speed changing box.

Description

technical field [0001] The invention relates to a gearbox, in particular to a gearbox for an electric vehicle with fast and slow gears. Background technique [0002] At present, most of the gearboxes used on electric cars and other vehicles are moving forward at a uniform speed, and cannot adjust the speed shift. When people use this car, they cannot adjust the speed, which will bring great inconvenience to people. Contents of the invention [0003] In order to solve the problem that the traditional gearbox cannot be shifted during use, the present invention proposes a fast and slow electric vehicle gearbox. The gearbox has a simple structure and can conveniently change gears to meet the different speed requirements of vehicle starting and climbing. , which brings convenience to people and improves the performance of the gearbox. [0004] The technical solution adopted by the present invention to solve its technical problems is: the fast and slow gear electric vehicle gea...

AI Technical Summary

Problems solved by technology

[0003] In order to solve the problem that the traditional gearbox cannot be shifted during use, the present invention proposes a fast and slow electric vehicle gearbox. The gearbox has a simple structure and can conveniently change gears to meet the different speed requirements of vehicle starting and climbing. , which brings convenience to people and improves the performance of the gearbox

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