| 摘要 |
<p>The polishing head comprises: abrasive segments (1) made to oscillate on radial shafts (3) driven by a ring (7) with vertical eccentric rotary motion; the ring being coupled to a first eccentric (10); the crown (15) being fixed to the casing (6) and the pinion (14) being coupled with rotational motion to a second eccentric (18), connected to the structure of the machine; a plurality of pins (25) mounted on eccentric planetary gears (26), coupled with rotational motion to the said ring (7) and to the body (5) of the head; a further pair of crown and pinion gears (13, 12), in which the said first crown gear (13) is rigidly connected to the second pinion (14) and rotates with it on the said second eccentric (18); the first pinion (12) being rigidly connected to the said first eccentric (10) concentrically with the axis (A) of the head; the second crown gear (15) being rigidly connected to the casing (6) concentrically with the axis of the head.</p> |
