FIELD: tractor.
SUBSTANCE: invention relates to automotive industry. Propose caterpillar tractor comprises engine, transmission with mechanical and hydraulic drives, and steering wheel coupled with plunger pump. Pump drive shaft is coupled with transmission. Said pump communicates, via oil lines, with reversing engine the shaft of which is coupled with caterpillar rotation mechanisms. Steering wheel is coupled with axial plunger pump control link so that steering wheel position corresponds to pump delivery. Reversing engine shaft of hydraulic drive is coupled with two sun gears to allow their rotation in opposite directions. Every sun gear is coupled with common epicycle rigidly linked with final drive driven gear. Shaft of every pinion frame is coupled with drive sprocket. Track braking mechanism comprises pickup of differential linkage between tracks ON/OFF state.
EFFECT: improved control.
4 cl, 3 dwg
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