RAIL VEHICLE SINGLE-AXLE BOGIE Russian patent published in 2003 - IPC

FIELD: railway transport. SUBSTANCE: invention relates to traction vehicles, namely to single-axle bogies of locomotives, street cars, track machines. Proposed single-axle bogie contains wheelset with axle boxes connected by means of first step of spring suspension to bogie frame, and second step of spring suspension for coupling vehicle body with axle box wings. Device is furnished with return device connected with body and frame of bogie arranged in horizontal plane lower than wheelset axle and made open. First step of suspension consists of two one-leaf composite springs designed for transmitting vertical, longitudinal and transfers forces. First ends of springs are hinge-connected to axle boxes and are disconnected from each other, and second ends are connected to each other and to bogie frame. Invention provides reduction of horizontal forces of interaction of wheels and rails. EFFECT: reduced wear of wheels and rails and resistance to running. 4 cl, 4 dwg