| 摘要 |
An irreversible reducer gearing, comprising a driven shaft (2), a driving shaft (6) and gear trains (22), wherein a first gear (23) is associated with the driving shaft (6) and a second gear (3) meshes with the first gear (23); also comprising a casing (1) housing a ring gear (11). The driven shaft (2) comprises a main journal (25), supported by the casing (1), a crank pin (7), parallel with the main journal (25) and a crank arm (26), transversal to the main journal and crank pin (25, 7). The second gear (3) is supported by the crank pin (7). The gearing (10) has a third gear (4) which meshes with the ring gear (11) and has a bearing cavity (19); it also has a first crank (27) in turn comprising its own first pin (20) which can be associated with a corresponding third gear (4) bearing cavity (19). |
