Electric vehicle multi-gear gearbox

• Main Authors: YIN TINGFENG, WEI FUDE, DUAN FENHONG, NIU QINGFENG, JIA LIJUN, LIU JINGXIN, ZHU YONGCUN
• Format: Patent
• Language: Chinese; English
• Published: 08.03.2019
• Subjects: BLASTING; ENGINEERING ELEMENTS AND UNITS; GEARING; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVEFUNCTIONING OF MACHINES OR INSTALLATIONS; HEATING; LIGHTING; MECHANICAL ENGINEERING; THERMAL INSULATION IN GENERAL; WEAPONS

The invention relates to the technical field of gearboxes, in particular to an electric vehicle multi-gear gearbox. A gearbox body, a power input shaft, a first shift output shaft and a second shift output shaft are included, a fixing gear sleeves the first shift output shaft, a ring gear sleeves the second shift output shaft, the outer ring wall of the ring gear is provided with outer ring teeth,and the inner ring wall of the ring gear is provided with inner ring teeth; the second shift output shaft is internally provided with a central cavity, tooth block clamping grooves communicating withthe central cavity are uniformly formed in the second shift output shaft along an annular shape, groove openings of the tooth block clamping grooves are blocked by the inner wall of the ring gear, and the tooth block clamping grooves are internally provided with radial shifting gear engaging tooth blocks capable of moving outwards in the radial direction of an axle; and the central cavity is internally provided with an ax