TWO-AXLE LOCOMOTIVE BOGIE WITH RADIAL SETTING OF WHEELSETS Russian patent published in 2007 - IPC B61F5/48 

FIELD: railway transport.

SUBSTANCE: invention relates to setting of locomotive bogie wheelsets for negotiating curved sections of track. Proposed bogie has frame 1 with two wheelsets 2, two axle boxes 3 on each wheelset, external and internal axle box links on each axle box, 4 and 3, respectively. Device 6 for radial setting of wheelsets is arranged on bogie frame between wheelsets, and it includes two expansion mechanisms 11 and 12 connected by synchronizing link 13 and installed along sides of bogie frame. Each said mechanism has crank 14 and 15, two identical longitudinal rods 16 and 17, drive 7, locomotive movement pickup and control system 8 with plan of track section including control unit 9 electrically connected with locomotive movement pickup 10 and drive. Each axle box is connected with bogie frame by external axle-box link, and crank of each expansion mechanism is coupled with longitudinal rods by one-way kinematic pairs. Each expansion mechanism is made opposite and is furnished additionally by with two identical sliders 18. Each slider is hinge-connected with corresponding longitudinal rod and internal axle-box link, drive is coupled with crank of one of expansion mechanisms, and sliders of each expansion mechanism are installed in longitudinal guide of bogie frame. Drive is made to provide longitudinal force on each slider determined by mathematical formula.

EFFECT: reduced resistance to motion and side wear of wheel flanges when negotiating curved sections of track.

3 cl, 4 ex, 1 tbl, 2 dwg