Multi-loop concentric circumferential drive reducing mechanism

The present invention discloses a multi-curved concentric rings to drive the speed reduction mechanism, some driving gear sleeve (3) with the power input shaft (2) fixedly connected to said power input shaft (2), the driving gear (3) a plurality of uniformly distributed around the driven gear (4) meshed with the drive gear, each driven gear coupled to an eccentric shaft (5) (4), the number of the eccentric shaft (5) and the driven gear (4) corresponding to the number, one end of each eccentric shaft (5) and the driven gear (4) is formed by a fixed coupling key (19), each eccentric body shaft (5) is provided with a drive means, an eccentric shaft (5) driven by means low-speed output shaft (6) is coupled with the gear, the low speed output shaft (6) with the power input shaft (2) is arranged a concentric structure, the input shaft (2) (3) drives the driven gear (4) through a drive gear rotation of the driven gear (4) sequentially drives the low speed output shaft (6) by rotation of the eccentric shaft (5) and the drive means.