SUSPENSION FOR HEAVY DUMP TRUCKS Russian patent published in 2003 - IPC

FIELD: transport engineering. SUBSTANCE: invention relates to suspensions with rigid lever arranged in parallel with longitudinal axis of vehicle and furnished with devices limiting displacement of suspension members. Proposed suspension contains independent longitudinal levers, each connected with hub of rear wheels located by one at each side. Longitudinal levers are connected with frame by means of universal joints. Shock absorber 127 is connected with hub also by universal joints. Shock absorber 127 is suspended from frame by means of its cross joint 133 to prevent side displacements of hub. According to one design version, joint 133 can be connected with end 143 of longitudinal member of frame through spherical support 144 for limited side displacement of shock absorber 127 in clearances 145, 146. joint 131 of dump body can be hinge- connected by its brackets 138, 139 either to joint 133 of shock absorber 127, or to frame in place displaced backwards and/or upwards from joint 133. invention provides rotation of main frame, joints of body and shock absorber independently from each other making it possible to transmit side loads arising in point of contact of tires and road surface directly to dumping body by-passing main frame, thus providing reduction of weight and increasing reliability of frame owing to reduction of twisting loads on longitudinal members of frame. EFFECT: reduced weight, improved reliability. 22 cl, 15 dwg