球面蜗杆传动 ,由于其同时接触齿数较多 ,故承载能力高于圆柱蜗杆传动。另一方面 ,由于球面蜗杆与蜗轮的接触线与滑移速度间夹角较大 ,因此油楔形成条件好 ,其承载能力和效率也相应提高。１球面蜗轮副如图１所示 ,球面蜗轮副的啮合齿形在轴向截面内呈直线形。蜗杆螺纹的工作表 Spherical worm drive, because of its contact with more teeth at the same time, so the bearing capacity is higher than the cylindrical worm drive. On the other hand, due to the large angle between the contact line of the worm and the worm gear, the oil wedge formation conditions are good, and its carrying capacity and efficiency are correspondingly improved. 1 spherical worm gear As shown in Figure 1, the spherical gear meshing tooth profile in the axial cross-section was linear. Worm thread worksheet