农业工程学报2011，Vol.27Issue(6)：143-147,5.DOI:10.3969/j.issn.1002-6819.2011.06.026
农用V型带当量摩擦系数影响角的试验
Experimental study on effect of slope angle on equivalent friction coefficient of agricultural V-belt
摘要
Abstract
The existed equation of equivalent friction coefficient of V belt has drawback due to the neglect to the deviation of the circumferential friction from the tension of the belt. It's an effective way to calculate the equivalent friction coefficient by taking the slope angle into account. By adopting the displacement fiber optic sensors in the experiment to measure the radial displacement of V belt, the trajectory of the belt and the value of the slope angle were acquired, and then the equivalent friction coefficient of V belt was obtained. The results showed that from the entry to the exit point when the belt contacted the driving pulley, the slope angle firstly decreased gradually and then increased backward, the absolute value of the slope angle was less than 4.5° when the angular velocity of the pulley was smaller or equal to 1500 r/min; the equivalent coefficient of friction increased from 0.9594 to 1.0596 when the angular velocity of the pulley was 600 r/min, which increased from 0.9529 to 1.0601 when the angular velocity was 1500 r/min. To calculate the equivalent friction coefficient of V belt accurately can make the foundation of evaluating the capacity and service life and reasonable selection of V belt used in the agricultural machinery.关键词
带传动；摩擦；试验；当量摩擦系数；影响角；运动轨迹Key words
belt drives/ friction/experiments/ equivalent coefficient of friction/slope angle/ trajectory分类
机械制造引用本文复制引用
朱琳,王金武,郑大宇,王玺..农用V型带当量摩擦系数影响角的试验[J].农业工程学报,2011,27(6):143-147,5.基金项目
哈尔滨市科技创新人才研究专项资金项目(2010RFQXG015) （2010RFQXG015）
