【摘要】 在双自由度运动状态下，用环面砂轮包络加工的圆柱蜗杆是一种新型蜗杆．本文论述了这种蜗杆的成形原理，并从提高啮合质量与改善接触和润滑性能的角度出发，首次采用模糊优化方法对该蜗杆副参数进行了多目标优化。结果表明，接触线的形状明显陡于优化前，润滑角显著增大，接触线的分布也有很大改善，这种新型蜗杆副作为动力传动将有良好的应用前景．更多还原

【Abstract】 The cylindrical worm processed by annular grinding wheel envelope in two degree of freedom motion state is a novel worm. This paper explains the shaping principle of such a worm. To improve meshing quality and the properties of contact and lubrication, the multi objective optimization has been conducted for the first time to the parameters of such a worm pair by the fuzzy optimal method. The results show that, the shape of the contact line is visibly more sloped than before being optimized, lubrication angle is apparently bigger, and the distribution of contact lines is much improved.更多还原