| 摘要 |
The invention relates to a hauled grader-type equipment for road-building, meant to spread, convey on short distances and level stony materials, in order to compensate the wear of road-surfacing layer proper to the road systems. According to the invention, the grader consists of a metallic carriage (1), with the possibility of three point-connection to a tractor of medium power, provided with a drivetrain (2) with two self-directing tire wheels (3) with reduced gauge, the drivetrain (2) being adjustable by a screw mechanism (4), the carriage (1) being provided with two blades (5 and 6), a front one and a rear one, independently actuated through a hydraulic installation (7), and adjustable in relation to the advance direction by an angle (±α), the front blade (5) being provided, at the lower back side, with a number of supports (8) meant for the mounting and fixing of some optionally attachable scarification teeth (9). |
