TRANSMISSION OF TRACK-TYPE VEHICLE WITH FINAL DRIVES Russian patent published in 2011 - IPC B62D11/18 

FIELD: transport.

SUBSTANCE: invention relates to machine building. Proposed transmission comprises matching reduction gear, two final drives, hydrostatic drive, two adding planetary mechanisms and two final drive reduction gears. Transmission incorporates two additional friction clutches each being coupled with driven link of matching reduction gear and sun gear of one of the two adding planetary mechanisms. Kinematic characteristic "K" of adding planetary mechanisms is relationship between the number of teeth of epicyclic and sun gears where: V_ρ=∞ is design speed of rectilinear translation of the vehicle in high gear before turn entry, m/s; - V_ρ=1 is maximum tolerable skidding speed of the vehicle geometrical center in turn with radius equal to track pit, m/s; - ρ=R/B is relative turn radius equal to relation between absolute turn radius R, m, measured from turn center to lengthwise axis of symmetry of support area of wheeling caterpillar chain, and vehicle track pit B, m, measured between lengthwise axes of symmetry of support areas of two caterpillar chains; g=9.81 m/s² is free fall acceleration; µ_max is maximum coefficient of resistance to turn measured as relation of lateral force that make vehicle slide laterally to forced of gravity acting on the vehicle.

EFFECT: higher maneuverability of high-speed track-type vehicle.

1 dwg