FIELD: agriculture.
SUBSTANCE: invention relates to the field of agricultural machinery industry, in particular to the front lifting device of the tractor. The front lifting device comprises the chassis fixed on the bearing structure of the tractor, two lower rods with mounting feet pivotally connected to the chassis. The lower rods are attached with the ability to move by means of the coaxially located working hydraulic cylinder and the second hydraulic cylinder. The working hydraulic cylinder provides movement of the rods between a lower position and a raised position. The second hydraulic cylinder is held by the valves in the extended state at normal operating mode and is transferred into the retracted state to transfer the rods into the retracted position. Transferring of the rods s carried out without any manual effort.
EFFECT: constructive solution prevents the formation of damages in frontal collision, it provides the ability of greater lifting height.
16 cl, 7 dwg
Authors
Dates
2014-07-27—Published
2009-10-28—Filed