| 摘要 |
PURPOSE:To make it possible to automatically level ballast horizontally on a waggon, a dump car, etc., by attaching pivotable blades rotatably to pivotable arms. CONSTITUTION:Movable tracks 7 such as rails are parallelly laid in the upper part of a bed on a waggon, a dump car or the like, and a body 1 is arranged on the movable tracks 7. In order to level ballast in the direction of X-X, herlical blades 2 carried by a pair of arms 6 are rotated by means of a drive source 3. While in order to move the body 1 in the direction of Y-Y, a drive unit 4 is driven to travel the body 1 along the movable track 7, thereby the herlical blades 2 are rotated and therefore, level the mountainous ballast, smoothly. When the height of the levelling by the herlical blades 2 is to be adjusted, the arms 6 are pivoted by extending or retracting a hydraulic cylinder 5 for displacing the blades 2 vertically in the direction of Z-Z. |
