| 摘要 |
PROBLEM TO BE SOLVED: To enable high-speed traveling suppressing the generation of friction heat between driving protrusions and a grounding rolling wheel, and to suppress galling of the driving protrusions due to the grounding rolling wheel, in a crawler traveling gear structured to drive-rotate the driving protrusions provided on an inner peripheral surface of a rubber crawler belt by engaging with a driving wheel and engage-guide the driving protrusions by the grounding rolling wheel group of an outer rolling wheel type. SOLUTION: A standing tilt angleβon right and left side surfaces in an upper half portion 12b of the driving protrusion 12 is set to be smaller than a standing tilt angleαon the right and left side surfaces in a lower half portion 12a. A tilt guiding surface c parallel with the right and left side surfaces in the lower half portion 12a of the driving protrusion 12 is formed on a inward side surface of the grounding rolling wheel 6 opposite to the left and right side surface of the driving protrusion 12. The tilt guiding surface c is structured to oppose to the right and left side surfaces of the lower half portion 12a in a range lower than the height of the lower half portion 12a. COPYRIGHT: (C)2004,JPO&NCIPI
|
