| 摘要 |
<p>A reciprocating-impact cutting head for a roadheader having an enclosed connecting rod comprises a case (1), a power driver (2), a guide (3), a guide member connector (4), an impact power source (5) and impact heads (6), said impact heads (6) comprising tooth seats (6.1) and teeth (6.2); the guide member connector (4) is arranged inside the case (1) and comprises a guide rod connector (4.1) which is connected, inside the case (1), with a guide rod A (3.5) and a guide rod B (3.6), said guide rods A and B (3.5, 3.6) constituting, together with the guide rod connector (4.1) and the tooth seats (6.1), an impact structure; by means of the guide rod connector (4.1), the power driver (2) drives reciprocating movement of the impact structure, supported by a guide body A (3.3) and/or a guide body B (3.4), which in turn drives reciprocating impacts of the impact heads (6), avoiding a direct connection between the power impact member (2.1) and the impact heads (6), thus also avoiding the difficulties of sealing holes through which a reciprocating section of the power impact member (2.1) would extend to the outside of the case (1), while doing away with a cover for such a reciprocating section of the power impact member (2.1) extending to the outside of the case (1), and thus providing the power driver (2) with better lubrication and protection.</p> |
