| 摘要 |
950,888. Balancing grinding wheels. HARTEX G.m.b.H. MASCHINEN-UND WERKZEUGFABRIK. Oct. 12, 1961 [Oct. 24, 1960], No. 36650/61. Heading B3D. [Also in Division F2] A device for balancing a grinding wheel comprises a housing 3 secured by screws 4 to the grinding wheel (not shown) and having ring gears 9, 8 meshing planet pinions 10, 14 carrying balancing masses 11, 15. The pinions 10, 14 mesh suns 12, 13 fast with suns 20, 21, meshing sets of planet pinions 17, 18 rotatable on a freely mounted carrier 19 which has a third set of planets 16 meshing a sun 26 formed on the housing 3. The planets 16 mesh a ring gear 27 formed on an operating cap 7, and the planets 17, 18 mesh internal teeth of adjusting rings 5, 6 which are urged into frictional engagement with the cap 7 by a spring-pressed ring 24. To balance the grinding wheel, with the wheel rotating, the cap 7 is held stationary and the rings 5, 6 are turned simultaneously in the same direction until the unbalance is a minimum. The rings 5, 6 are then turned in opposite directions until the grinding wheel is completely balanced. |
