平面二次包络内蜗轮齿面成型方法

为了使平面包络鼓形蜗杆传动具有更佳的承载能力与良好的传动性能,利用微分几何及啮合理论建立平面二次包络鼓形蜗杆传动的包络理论,依照鼓形蜗杆齿廓螺旋线创建鼓形蜗杆实体模型,采用二次开发使鼓形蜗杆与具有内齿轮特性的面进行布尔运算,求解出高精度的二次包络内蜗轮齿面。与一次包络鼓形蜗杆副相比,鼓行蜗杆副具有双线接触、接触面大、齿面间易形成动压油膜和承载能力更强等优点,其内置蜗杆结构为后续机器人智能关节研究奠定理论基础。

Molding Method for Planar Quadratic Enveloping Internal of Worm Gear Tooth Surface

The purpose of the study is to make the planar enveloping crown worm gearing transmission have better carrying capacity and good transmission performance.Through using the differential geometry and meshing theory,the envelop theory of the planar double-enveloping crown worm drive is established,and the entity model crown worm tooth profile is created in accordance with the crown worm helix,then the secondary development of the crown worm is adopted to have Boolean operation with this internal gear characteristics.Thus,the high precision double enveloping internal worm gear is solved.Compared with this planar enveloping crown worm,the resulted crown worm has number of advantages.It has a two-way contact with a large contact surface between the tooth surface,and is easy to form hydrodynamic oil film bearing capacity.It′s built in worm structure lays a good theoretical foundation for further research on robot intelligent joint.