| 摘要 |
<p>Impact rippers are useful, for example, in fracturing rock and other hard material which is to be excavated. Known systems using structures which mount the impact hammer and the linear ram within a single housing transmit vibrations into the mounting frame and are difficult to service and expensive to maintain. The subject linear impact ripper apparatus (10) has an impact hammer (20) having one end (102) resiliently mounted to a mounting frame (14) and another end (104) slidably mounted on one of the linear ram (18) and the tool holder (16). Thus, the disclosed linear impact ripper apparatus (10) reduces vibrations transmitted to the mounting frame (14) and has separate elements for ease of service and reduced maintenance cost and maintains the alignment between the separate parts of the structure. The arrangement allows the connection between the impact hammer (20) and one of the linear ram (18) and the tool holder (16) to be sealed from atmosphere.</p> |
