Planetary system output mechanical double overrunning clutch adaptive automatic transmission main shaft assembly

Abstract

The invention discloses a planetary system output mechanical double-overrunning-clutch self-adaptive automatic speed change spindle assembly. A planetary gear system is adopted for outputting power. Aspeed change system comprises a low-speed gear transmission mechanism, a reverse gear transmission mechanism and a self-adaptive speed change assembly. The reverse gear mechanism has a transmission ratio I for transmitting reverse gear power from an auxiliary shaft to a spindle, the low-speed gear transmission mechanism has a transmission ratio II for transmitting low-speed gear power from the auxiliary shaft to the spindle, and the transmission ratio I is larger than or equal to the transmission ratio II. Two overrunning clutches reasonably cooperate, the overall structure is simple and compact, reverse gear transmission, low-speed gear transmission and high-speed gear transmission share a transmission route and do not interfere in one another, the overall performance is guaranteed, highadaptability is achieved, cooperation with a self-adaptive automatic speed change mechanism is smooth and natural, planetary deceleration output is adopted, the output torque can be improved, a high-speed motor can be adopted as a power source, the overall efficiency is improved, and the spindle assembly is suitable for the field of electric vehicles and other torque-variable mechanical transmission fields.

Description

technical field [0001] The invention relates to a motor vehicle transmission, in particular to a mechanical dual overrunning clutch self-adaptive automatic transmission main shaft assembly output by a planetary system. 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 increas...

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