| 平面二次包络环面蜗杆传动强度计算 |
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| 引用本文： | 张彦钦,张光辉.平面二次包络环面蜗杆传动强度计算[J].西南交通大学学报,2011,46(1):138-142. |
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| 作者姓名： | 张彦钦 张光辉 |
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| 作者单位： | 重庆大学机械传动国家重点实验室,重庆,400030 |
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| 摘 要： | 为了简化平面二次包络环面蜗杆传动承载能力的计算方法,基于Hertz理论,应用线性回归法和插值法,推导了平面二次包络环面蜗杆传动接触强度计算公式;考虑齿间载荷分配系数的影响,修正了普通圆柱蜗杆传动弯曲强度计算公式;根据蜗杆副有限元网格模型,分析了轮齿应力分布.结果表明:解析式计算的平面二次包络环面蜗杆传动接触强度(弯曲强度)比有限元分析结果大6%~16%,满足工程使用的要求;蜗轮齿面接触应力沿接触线呈倾斜L型分布;蜗杆载荷从1 N.m增大至额定值时,5对齿啮合的最大齿间载荷分配从32.4%降至27.5%.
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| 关 键 词： | 蜗杆传动 应力分布 有限元法 承载能力 |
Strength Calculation of Planar Double-Enveloping Hourglass Worm Gears |
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| ZHANG Yanqin,ZHANG Guanghui.Strength Calculation of Planar Double-Enveloping Hourglass Worm Gears[J].Journal of Southwest Jiaotong University,2011,46(1):138-142. |
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| Authors: | ZHANG Yanqin ZHANG Guanghui |
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| Institution: | ZHANG Yanqin,ZHANG Guanghui(State Key Laboratory of Mechanical Transmission,Chongqing University,Chongqing 400030,China) |
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| Abstract: | In order to simplify the calculation method for bearing capacity of planar double enveloping hourglass worm gears,a contact stress analytic formula for the worm drive was proposed through regression analysis and interpolation method based on the Hertz theory.The bending strength calculation formula was improved by taking into consideration the load distribution coefficient among the meshing teeth.According to the contact finite element model of the worm-gears,three-dimensional stress distribution of the gea... |
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| Keywords: | worm gears stress distribution finite element method bearing capacity |
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