Full-power shifting variable-speed device of tractor

• Main Authors: WU YIWEI, XI ZHIQIANG, ZHAO SIXIA, XU LIYOU, GUO JUNWEI, CAO FUYI, ZHANG XIAORUI, YAN XIANGHAI, ZHANG MINGZHU
• Format: Patent
• Language: Chinese; English
• Published: 19.11.2019
• 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 a full-power shifting variable-speed device of a tractor. The full-power shifting variable-speed device comprises a main variable-speed mechanism, an auxiliary variable-speedmechanism and a shifting control mechanism and can transmit the power of an engine to a rear axle, a front axle and a PTO (Power Take-off Shaft), wherein the main variable-speed mechanism is arrangedin a gearbox and has four gears; the auxiliary variable-speed mechanism can perform high, medium, low speed or reversing adjustment on the rotating speed output in the main variable-speed mechanism; and the shifting control mechanism can perform gear switching. The whole transmission device has a total of 12 forward gears and 4 reverse gears; the speed range is from 2.5km/h to 31km/h; all shiftingand reversing mechanisms adopt friction-type hydraulic shifting clutches, and are electronically controlled, so that the shifting operation is simple and convenient, and the shifting shock and the shifting force are small. The