【摘要】 首次建立了双自由度运动状态下，用环面砂轮包络加工圆柱蜗杆传动的啮合原理数学模型．用环面刀具包络成形的蜗杆副，蜗杆的轴向齿廓为凹齿廓，蜗杆与蜗轮为瞬时双线接触，并兼备了二次包络成形和凹面齿圆柱蜗杆的特征．这种新型蜗杆传动具有良好的应用前景．更多还原

【Abstract】 A mathematical model is established of the meshing principle for a cylindrical worm drive,with the worm machined with a toroid grinding wheel in a two degree of freedom motion state,for the first time.In such a cylindrical pair,the axial profile of the worm tooth is concave,and its contact pattern instantaneously is in double line contact.The worm pair has the same characteristics of a worm gearing with enveloping generation,and the tooth form of the worm is characterized by the concave profile.Therefore,this kind of novel worm drive will have good prospects in application.更多还原