| 摘要 |
Excentric grinding device comprising a rotatable tool holder (2), which on one side is provided with a drive and fastening means (4) for connection of the holder to a driving means, such as an angled hand-piece connected to a driving motor. On its opposite side the tool holder (2) is provided with a cavity (6) in which a roller bearing (10), with a central receiving opening (24) in the inner ring, is so mounted that the receiving opening is excentrically situated in relation to the drive and fastening means (4). The bearing supports a grinding material carrier (26) with an axial, conical fastening pin (28) by which the carrier is so removably fastened in the receiving opening (24) of the bearing that a certain inclination ( alpha ) of the fastening pin (28) of the grinding material carrier, and thereby the carrier (26) itself, is possible in relation to the fastening means (4) of the tool holder (2). At its inner end situated inside the cavity (6), the fastening pin (28) is provided with retaining means (36), which prevent the pin (28), and thereby the grinding material carrier (26), from coming loose from the inner ring (16) of the bearing (10). |
