| 摘要 |
PURPOSE:To transmit a large power with a comparatively small bevel gear by setting a speed transmitting ratio to output shafts against an input shaft, a pressure angle between a driving bevel gear and a driven bevel gear, and an angle of torsion to be fixed values. CONSTITUTION:A speed transmitting ratio between bevel gears 6, 7 and bevel gears 16, 17, that is, a speed transmitting ratio to output shafts 10, 11 against an input shaft 2, is set to be 1.45-1/2.1. Also, an angle pressure alpha on teeth of the bevel gears 6, 7, 16, 17, an angle of torsion beta of teeth of the bevel gears 6, 7, 16, 17, and a pitch cone angle delta of the bevel gears 16, 17 are set to be within a range that is set by an equation, -0.324<=tanalpha.sindelta/cosbeta-tanbeta.cosdelta<=0.1. |
