초록 ▼

An eccentric gear comprising a stationary gear wheel (2) and an eccentric gear wheel (9). The eccentric wheel is freely mounted on the input shaft and is driven round by eccentric means (4, 6) causing the eccentric wheel to roll round the internal teeth on the stationary wheel. A driving dog transmi

An eccentric gear comprising a stationary gear wheel (2) and an eccentric gear wheel (9). The eccentric wheel is freely mounted on the input shaft and is driven round by eccentric means (4, 6) causing the eccentric wheel to roll round the internal teeth on the stationary wheel. A driving dog transmits the slow rotation of the eccentric wheel to an output shaft (14). Distinguishing for the invention is that the teeth are corrected such that the eccentric wheel is adjusted with the aid of the two eccentric means such that there is practically no backlash. A computer calculated least clearance between respective top lands on the teeth is obtained with respect to tooth meshing. The eccentric means comprises two cylindrical sleeves arranged eccentrically one in the other. At one end part of each of the sleeves, one of which is arranged eccentrically in the other, there is a radially outstanding tongue (5, 7). These tongues serve as counterweights balancing the imbalance moment of the satellite gear wheel which is due to its eccentric mounting on the input shaft. Backlash and play are eliminated by turning the sleeves of the eccentric means relative to each other.

대표청구항 ▼

Eccentric gear, comprising: an input shaft, an output shaft, a fixed gear wheel having internal teeth, first eccentric means non-rotatably attached to the input shaft, second eccentric means mounted on the first eccentric means, the first and second eccentric means, after an initially performed adju

Eccentric gear, comprising: an input shaft, an output shaft, a fixed gear wheel having internal teeth, first eccentric means non-rotatably attached to the input shaft, second eccentric means mounted on the first eccentric means, the first and second eccentric means, after an initially performed adjustment of their relative angular position in order to eliminate backlash in the gear, being fixed relative to each other in an operative as well as an inoperative mode of the gear, and an eccentric gear wheel rotatably mounted on said second eccentric means and having teeth engaging the internal teeth of the fixed gear wheel so as to rotate and revolve upon rotation of the input shaft, the teeth of the eccentric gear wheel and the teeth of the fixed gear wheel differing in number by one tooth and being corrected by profile shifting and stubbing for ensuring a predetermined top land clearance.