MULTI-SPEED COMPOUND VEHICULAR TRANSMISSION HAVING AN AUXILIARY SECTION WITH THREE COUNTERSHAFTS

摘要

A multi-speed compound vehicular transmission having an auxiliary section with three countershafts is composed of a main section and an auxiliary section. The main section includes an input shaft (1), a main shaft (40) and a number of synchronizers (39´). There are two countershafts (5) disposed symmetrically and equidistantly on two sides of the main shaft (40). The auxiliary section includes an auxiliary main shaft (25) and a synchronizer (23). The main shaft (25) is provided with a reduction gear (22). There are three countershafts (19) disposed parallel and distributed with equal distance around the main shaft (25). The output end of the auxiliary main shaft (25) is connected with a flange (26).