FIELD: machine building.
SUBSTANCE: invention is related to transport machine building, to transmission of transport vehicles. In supports of intermediate and back walls of unit body there are parallel differential body and additional shaft, where four gears are fixed. In nozzle of additional shaft, back end of inlet shaft is installed, where two gears are located, being fixed to gear unit. Gear unit is loosely installed on front outlet shaft of differential. Near gear unit, a gear is loosely installed, which is engaged with gear of additional shaft nozzle, two gears of this shaft are engaged with gears that are loosely installed on tubular nozzles of differential body. Gears switching is done by triple-position couplings and two double-position single-sided oppositely inverted couplings that are interconnected by shifter yoke.
EFFECT: in improvement of transport vehicle performance characteristics due to increase of forward running gears number and simplification of device design.
2 dwg
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