TRAVELING SYSTEM FOR WORK VEHICLE

摘要

PROBLEM TO BE SOLVED: To provide a traveling system for a work vehicle, capable of improving tight turn capability in 4WS steering a front traveling system and a rear traveling system with a reverse phase.

SOLUTION: A traveling drive device is parallel-connected to a hydraulic pump 1 with a closed circuit and driven by the pressure oil discharged from the hydraulic pump 1 and includes a HST hydraulic circuit 6 which has a first and a second traveling hydraulic motors 10, 20 for driving each of the front traveling device 11 and the rear traveling device 21. A steering device 4 is structured in such a manner that the magnitude of a steering angle of the front traveling device 11 is different from that of the rear traveling device 21 in a 4WS mode.

COPYRIGHT: (C)2009,JPO&INPIT