The invention provides a double-fork-arm type front suspension of an off-highway mining dump
truck, and belongs to the technical field of automobiles. The front suspension comprises an upper pull rod,an upper fork arm, a pin, a hydro-pneumatic suspension cylinder
barrel, a lower fork arm, a bearing seat, a
knuckle bearing and a hydro-pneumatic suspension
piston rod, the hydro-pneumatic suspensioncylinder is connected with a frame, the upper fork arm and the lower fork arm are hinged to the two sides of the hydro-pneumatic suspension cylinder
barrel, and the hydro-pneumatic suspension pistonrod is in sliding connection with the hydro-pneumatic suspension cylinder
barrel. The upper pull rod is hinged to the hydro-pneumatic suspension
piston rod and the frame. The double-fork-arm type front suspension for the heavy-duty car is simple in structure, the
system can adopt hydro-pneumatic suspension with small
diameter and
stroke, the suspension has the functions of a main pin, an elastic element and a damping element at the same time, the
lateral stability of the car is enhanced, and the space
utilization rate of a front axle and the flexibility of a
steering system are improved.