FIELD: instrument engineering.
SUBSTANCE: invention relates to gearboxes. Co-axial seven-speed gearbox comprises a body with coaxially arranged input and output shafts, an intermediate shaft parallel thereto, with a pair of intermediate-shaft drive gears rigidly mounted thereon and an input shaft. On the output and intermediate shafts there are seven pairs of constant-mesh gears, three clutches of six forward gears, a seventh-gear clutch and reverse gear clutch. Clutch and the pair of gears of the seventh gear are mounted on the shafts behind their supports in the gearbox housing. In another version, the reverse gear engaged clutch is installed on the last of the number of couplings located on the shafts. In the third variant, the gear of the drive wheel drive is fixed to the end of the intermediate shaft.
EFFECT: broader operational capabilities and characteristics of the vehicle are provided.
7 cl, 11 dwg
