摩擦带弹性滑动率与摩擦损失效率计算及实验

发布时间：2018-04-17 18:31

本文选题：带传动 + 积分原理　；参考：《机械设计与制造》2017年03期

【摘要】：摩擦带传动应用广泛,但由于弹性滑动的存在,传动效率并不理想。基于弹性体欧拉公式推导出含带离心力影响的弹性滑动率表达式,得出影响弹性滑动的因素为初拉力、小带轮动角、摩擦系数及皮带的弹性模量、横截面积;采用积分原理得到带与带轮摩擦损失总功率的计算式,指出采用弹性模量较大值材料的皮带及控制带速可降低摩擦损失功率;推导了摩擦损失效率关于弹性滑动率的关系式,并通过PC-B型皮带传动实验台实验验证。研究结果表明:弹性滑动是导致效率损失的主要因素;摩擦损失效率与弹性滑动率成非线性正相关。上述研究为带传动理论研究和工程应用奠定了基础。
[Abstract]:Friction belt transmission is widely used, but the transmission efficiency is not ideal due to the existence of elastic sliding.Based on the Euler formula of elastic body, the expression of elastic slip rate with centrifugal force is derived. The factors influencing elastic slip are initial tension force, small belt wheel angle, friction coefficient, elastic modulus of belt and cross section area.The formula for calculating the total power of friction loss between belt and pulley is obtained by using the integral principle. It is pointed out that the friction loss power can be reduced by using the belt with high elastic modulus and controlling the belt speed, and the relationship between the friction loss efficiency and the elastic slip rate is derived.The experimental results are verified by PC-B belt drive test bench.The results show that elastic sliding is the main factor leading to the loss of efficiency, and the friction loss efficiency has a nonlinear positive correlation with the elastic slip rate.The above research lays a foundation for the theoretical research and engineering application of belt transmission.
【作者单位】：承德石油高等专科学校机械工程系;华北理工大学迁安学院;
【基金】：国家自然科学基金资助项目(51375081)
【分类号】：TH132.32

【相似文献】