| 摘要 |
PURPOSE:To vertically hold tracked belts in accordance with slopes and undulations of a mountain edge, by tiltably forming front and rear axles with respect to a machine body further vertically movably forming the rear axle for suspension of roller frames. CONSTITUTION:Roller frames 1, to which a tracked belt 24 is mounted, are supported to bearing bosses 5, and the front bosses 5 are connected to a bottom link 7 by pins 8 while to an upper link 10 by pins 11. A longitudinal link 12 is provided between the upper and bottom links, and a hydraulic cylinder 15 is mounted to the link 12. An arm 14 of the link 7 is mounted to a rod 13 of the cylinder 15. A machine body 16 is mounted to the link 7, and the frame 1 is tiltably moved by operation of the cylinder 15, even in case of running on a slope of a mountain edge, the tracked belts can be vertically held on a surface of the ground. A bottom link of a rear axle is not fixed to the machine body, and a roller frame in the rear part can be vertically moved to correspond to undulations. |
