实际工况下的包络环面蜗杆设计参数优化  

Optimization of Worm Gearing's Geometric Parameters Under the Condition of the Errors and the Load

作　　者：徐戊矫[1] 秦大同[1] 石万凯[1] 

机构地区：[1]重庆大学机械传动国家重点实验室,重庆400030

出　　处：《重庆大学学报（自然科学版）》2004年第4期24-26,48,共4页Journal of Chongqing University

基　　金：国家自然科学基金资助项目(50175112);国家教育部博士点基金资助项目(200061120)

摘　　要：平面二次包络环面蜗杆因具有承载能力大,润滑性能好,传动效率高等优点而得到广泛应用,但这种蜗杆传动对误差和受载变形的影响敏感。在实际工况条件下,作者基于传动副的实体模型,采用3-D接触有限元方法综合分析了平面二次包络环面蜗杆的母平面倾斜角β、蜗杆分度圆直径系数k1、主基圆直径系数kb和i传动比对传动副啮合性能和承载能力的影响,认为选取较大的母平面倾斜角β和较大的蜗杆分度圆直径系数k1对传动副的传动质量有利。这为在工程实际中结合具体工况优选设计参数提供了参考依据。Double enveloping hourglass worm gearing has been widely used in many fields because of its heavy-duty capacity, good lubrication, high transmission efficiency and excellent manufacturing accuracy. Nevertheless, this kind of worm gearing is sensitive to the influence of the error and the load. The effects of important parameters such as inclinable angle β of generating surface, diametral coefficient of worm reference circle k_1, diametral coefficient of base circle k_b and transmission ratio i on the mating performance and loading capacity have been analyzed in a system way. Results show that selection of relatively larger β and k_1 is beneficial to transmission quality. The analysis of worm gearing's mating performance is based on 3-D solid modeling and tooth contact analysis method(TCA) has been utilized.

关 键 词：平面二次包络环面蜗杆 设计参数 误差 承载变形 3-D接触有限元 

分 类 号：TH132.46[机械工程—机械制造及自动化]