| 摘要 |
<p>The impact ripper has a bracket (2) fixed to the rear portion of a chassis of a construction machine. At the rear side of the bracket various parts are provided, which include a beam (4) to which a breaker mounting bracket (9) having a shank (8) and a hydraulic breaker (10) is fixed. An arm (6) connects the lower portions of the bracket and beam together, and a tilting cylinder (5) connects the upper portions of the bracket and beam (4) together. A lift cylinder (16) connects the upper portion of the bracket and the lower portion of the beam (4) together. The beam and shank are provided with a pair of link members (7), which support the beam and shank pivotably so that these parts form a quadric link. Since the shank is moved linearly owing to the quadric link, a ripping limit w.r.t. a hard rock is heightened.</p> |
