TRACTOR FRONT HITCH Russian patent published in 2005 - IPC

FIELD: agricultural engineering, in particular, hitch systems.

SUBSTANCE: tractor hitch system has two lower tie-rods and one upper tie-rod. Lower tie-rods are connected with one another so as to define U-shaped frame whose free ends are secured to tractor carcass. Tie-rods pivotally attached to front beam of U-shaped frame are arranged at an angle to tractor longitudinal axis so as to define trapezium connected with its larger base to tractor frame. Upper tie-rod is made in the form of power cylinder and is pivotally connected with U-shaped frame. Resilient and damping members positioned between tie-rods and U-shaped frame are attached with their one ends to U-shaped frame and with their other ends to tie-rods for changing rigidity or damping properties of hitch in horizontal plane upon changing position of said members. Places of attachment and, accordingly, position of resilient or damping members are selected depending on operating conditions.

EFFECT: simplified construction and stabilized movement of farm machines.

1 dwg