| 摘要 |
<p>The invention relates to a machine tool with a pneumatic striking mechanism, having a striker (13) which is guided on a running surface (19) along a working axis. An electrodynamic drive is coupled to the striker (13). A pneumatic chamber is closed off from the striker (13) in the striking direction and from the running surface (19) in the radial direction in order to form an air spring which acts on the striker (13). A sealing ring (22) which circumferentially surrounds the striker (13) seals the striker (13) from the running surface (19). The sealing ring (22) is provided with an abrasive additive.</p> |
