Reduction gearbox assembly for electric drive axle adaptive to high-speed sliding working condition

The utility model relates to a reduction gearbox assembly for an electric drive axle adapted to a high-speed sliding working condition, which comprises a main shell, a speed reducer and a differential assembly are arranged in the main shell, the speed reducer comprises an output shaft, the output shaft is connected with a first-gear gear, a first synchronizer and a second-gear gear, the first synchronizer is positioned between the first-gear gear and the second-gear gear, and the second synchronizer is positioned between the first-gear gear and the second-gear gear. The first-gear gear and the second-gear gear are both connected with an output shaft through rolling bearings, the output shaft is further connected with a driving gear, the differential mechanism assembly comprises a main reduction gear, the driving gear is used for being meshed with the main reduction gear, and an oil channel is formed in the output shaft and comprises an oil inlet and an oil outlet. Oil outlets are formed in the output shafts o