| 摘要 |
<p>The grading machine (10) includes a main frame (14), a center frame (16), and a rear frame (18). A grading blade (20) is connected to the main frame (14) for pivotable motion about a vertical axis. A pair of spaced wheels (22) is carried by the rear frame (18). The tilt of the blade (20) can be adjusted by rotating the center frame (16) and the main frame (14) connected thereto about a horizontal axis extending in the direction of travel of the machine (10). The height of the blade (20) can be adjusted by adjusting the angular relationship between the center frame (16) and the main frame (14) about a second horizontal axis of the coupling rod (96).</p> |
