A new type of tractor shuttle shift with immovable parallel axes gear train structure of parallel power - flow was described . it specifyies on its structure and design method 摘要介紹了一種采用并聯(lián)功率流定軸輪系結(jié)構(gòu)的拖拉機(jī)新型逆行器的設(shè)計(jì)開發(fā),著重?cái)⑹隽嗽撔湍嫘衅鞯慕Y(jié)構(gòu)特點(diǎn)和設(shè)計(jì)方法。