| 摘要 |
<p>Earth moving equipment (10) for land planing, grading or contouring has a wheel-mounted frame with a blade carrier (11) and a trailing section (12) hinged connected about a transverse pin (23) and the frame is raised or lowered by a hydraulic ram (31) to control the cutting depth of a transverse blade (38). The blade (38) is pivotally mounted on a blade post (37) and can be angled to the direction of travel by a pair of rams (43). The trailing section (12) is supported on an axle (25) with storable wheels (24) and may be tilted by a ram (32) to further control the attitude of the blade (38). </p> |
