| 摘要 |
The invention relates to a plough-type hauled equipment for road building, meant to dig, reshape and clean ditches adjacent to forest track bed the road system of which comprises stone layers, in order to provide the discharge of the meteoric water accumulated on the road reservation. According to the invention, the plough consists of a metallic framework (1), to which an assembly (2) is undetachably mounted for supporting and fixing a digging part (3) of the helical mouldboard type, the digging depth being adjusted by a screw mechanism (4), which drives a wheel (5) fixing the digging depth; on the back side of the helical mouldboard (3), there is a blade (7) for pushing the soil material extracted and elevated by the digging operation, driven by means of a deformable quadrangle mechanism (6), which allows the blade to move vertically, and a wheel (8) for supporting the assembly of the blade (7), while, for the down-time and for easily mounting the plough to the tractor, it is provided with a supporting leg (9). |
