The present application relates to the field of
tractor suspension, and particularly relates to a
tractor suspension automatic leveling device and a control method thereof. The
tractor suspension automatic leveling device comprises a mounting frame, a plurality of connecting beams are fixedly connected to the mounting frame, a damping leveling
system is connected to the mounting frame, a suspension frame is connected to the damping leveling
system, a horizontal plate is fixedly connected to the suspension frame, the suspension frame is used for mounting a
machine tool, a double-shaft inclination sensor is mounted on the horizontal plate, and a rotating leveling
system is arranged. The leveling and damping functions are integrated in the same oil cylinder. When the
impact acceleration exceeds the set threshold, the
inertia sensitive valve core is automatically opened, the main oil cylinder cavity is communicated with the
energy storage cavity, the
millisecond mechanical impact absorption is realized, the sensor and the controller are not needed to intervene, the response speed is superior to that of the traditional
electric control damping scheme, after the
impact, the hydraulic oil in the
energy storage cavity slowly returns to the original position through the one-way throttling valve, the leveling and damping functions are cooperatively worked, and the posture deviation is avoided.