| 摘要 |
Linear activation of one or more rotatably mounted or, if necessary, driven cutting, milling, or roller bits (5) by means of two synchronously counterdriven high-speed flyweights, masses or similar mutually offset at 180 DEG in/on a housing or carrier mounted on a cushioning spring. The drilling tools can additionally be activated and/or driven. The relevant directions of impact can be determined by adjusting/resetting the counterdriven flyweights and/or twisting the housing/assembly. |
