摘要 |
PROBLEM TO BE SOLVED: To avoid power loss when traveling straight, and to smoothly perform transference from straight traveling to turning without complicating transmission structure, and to reduce shock due to rotation difference when transferring from straight traveling to turning, in regard to a crawler traveling vehicle provided with a straight traveling HST and a turning HST. SOLUTION: The crawler traveling vehicle provided with a pair of crawler traveling devices 7, right and left, is provided with the straight traveling HST 16 for shifting straight traveling power and the turning HST 17 for shifting turning power. When traveling straight, output rotation of the straight traveling HST 16 is transmitted to the right and the left crawler traveling devices 7, and when turning, output rotation of the straight traveling HST 16 and the turning HST 17 are synthesized by a planetary reduction gear mechanism 42, and transmitted to the crawler traveling device 7 inside a turn. When traveling straight, power at the same speed with the straight traveling power or little decelerated speed is output from the planetary reduction gear mechanism 42. COPYRIGHT: (C)2006,JPO&NCIPI
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