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    • 91. 发明授权
    • Variable tread vehicle
    • 可变胎面车
    • US4350222A
    • 1982-09-21
    • US133466
    • 1980-03-24
    • Martin T. LuttekeGordon M. Lutteke
    • Martin T. LuttekeGordon M. Lutteke
    • B62D49/06B62D61/00
    • B62D49/0678Y10S180/906
    • A variable tread vehicle includes first and second parallel horizontal rails which are connected to a frame and extend in a direction which is transverse to the direction of movement of the vehicle. First and second movable carriages are movable on sections of the track formed by the rails. A first drop axle is connected to and extends downward from the first movable carriage, and a second drop axle is connected to and extends downward from the second movable carriage. Connected near the lower ends of the first and second drop axles are first and second wheels of the vehicle. The first and second movable carriages are moved on the track by first and second threaded drive shafts, which are driven by hydraulic motors. By controlling the hydraulic motors, the operator can drive the first and second movable carriages outward to increase the spacing between the first and second wheels, or can drive the first and second movable carriages inward to decrease the spacing between the first and second wheels. The adjustment of wheel spacing may be accomplished while driving the vehicle, thus permitting a rapid and simple changeover when different wheel spacing is required.
    • 可变胎面车辆包括连接到框架并沿横向于车辆的移动方向的方向延伸的第一和第二平行水平轨道。 第一和第二可移动滑架可在由轨道形成的轨道的部分上移动。 第一下降轴连接到第一可移动滑架并从第一可移动滑架向下延伸,并且第二下降轴连接到第二可移动滑架并从第二可移动滑架向下延伸。 在第一和第二下降轴的下端附近连接的是车辆的第一和第二轮。 第一和第二可移动滑架通过由液压马达驱动的第一和第二螺纹驱动轴在轨道上移动。 通过控制液压马达,操作者可以向外驱动第一和第二可移动滑架以增加第一和第二轮之间的间隔,或者可以向内驱动第一和第二可移动滑架以减小第一和第二轮之间的间隔。 可以在驾驶车辆时实现车轮间距的调节,从而允许在需要不同的车轮间距时快速简单的转换。