Automatic speed change spindle assembly adopting planetary system input and double overrun clutch spindle output

Abstract

The invention discloses an automatic speed change spindle assembly adopting planetary system input and double overrun clutch spindle output. Driving power is input through a planetary gear train. A speed change system comprises a low gear transmission mechanism, a reverse gear transmission mechanism and a self-adaption speed change component. The reverse gear transmission mechanism has a transmission ratio I at which reverse gear powder is transmitted from an auxiliary shaft to a spindle, the low gear transmission mechanism has a transmission ratio II at which low gear powder is transmitted from the auxiliary shaft to the spindle, and the transmission ratio I is equal to or greater than the transmission ratio II. The reasonable coordination of two overrun clutches is utilized to make the overall structure be simple and compact, reverse gear transmission and low gear and high gear transmission share a transmission route without interference, overall performance is guaranteed, the adaptability is high, the automatic speed change spindle assembly is matched with a self-adaption automatic speed change mechanism smoothly and naturally, planetary speed reduction input is adopted, a highspeed motor can be adopted as a power source, the overall efficiency is improved, and the automatic speed change spindle assembly is not only suitable for the field of electrombiles, but also suitablefor the other fields of mechanical transmission with variable torque.

Description

technical field [0001] The invention relates to a motor vehicle transmission, in particular to an automatic variable speed main shaft assembly with a planetary system input and a dual overrunning clutch main shaft output. Background technique [0002] The working conditions of mechanical transmission systems are generally complex, and torque needs to be distributed to realize the transmission of different loads and speeds. Taking electric vehicles as an example, the driving environment is complex and changeable. Moreover, the electric drive method commonly used in existing electric vehicles is a motor-driven fixed-speed ratio, and the reasonable range of high efficiency is narrow and limited, resulting in a vicious circle, resulting in the following problems: [0003] 1. It can only work within the torque range of a certain working condition. [0004] 2. In order to meet the road conditions under the condition of constant speed ratio, the speed of the motor can only be incr...

AI Technical Summary

Problems solved by technology

[0014] In view of this, the object of the present invention is to provide an automatic variable speed main shaft assembly with planetary system input and double overrunning clutch main shaft output, and a reverse gear mechanism with strong adaptability is added. It can automatically shift gears and change gears under severe conditions, and can solve the problem of high-efficiency road forward and reverse driving under complex conditions under two-way driving conditions, and the setting is simple and compact, and it cooperates with the cam adaptive automatic transmission mechanism Smooth and natural, reducing manufacturing costs and ensuring the stability of transmission

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