偏转双曲柄滑块机构运动特性分析  

Analysis of Motion Characteristic of Deflection Slider-Double-Crank Mechanism

作　　者：苏和平[1] 彭丹 蔺吉顺[1] 

机构地区：[1]内蒙古民族大学机械工程学院,内蒙古通辽028042 [2]内蒙古满洲里市第二中学,内蒙古满州里021410

出　　处：《机械传动》2011年第9期41-44,共4页Journal of Mechanical Transmission

摘　　要：从双曲柄滑块机构的一般位置即偏转型出发,建立了综合因素影响下的机构行程速比系数K和滑块7速度v7的表达式,分析了主要影响因素安装角β和偏转角α与K的关系,计算分析了机构5种位置时的运动平稳性。结果表明,偏转型双曲柄滑块机构K的值域很宽,一定条件下,滑块7可以获得好的运动平稳性,滑块在原动件θ1约200°的转角范围内,速度没有波动,而且偏转角α在一定值域内,对v7的影响不大。在上偏转式机构中,α一定程度地影响机构的平稳性;而在下偏转式机构中,α的影响很小。对心式和上、下偏置式双曲柄滑块机构运动平稳性基本相同。Based on deflection type of slider-double-crank mechanism,V7 expression formula of slide block 7 and coefficient of travel speed variation K under the influence of multiple factors is established.Then motion stability of five positions are analyzed and calculated by analyzing the relationship among established angle β,deflection angle α and K.The results indicate that,the range of K is wide,the motion stability of slide block 7 can be obtained under a certain condition.The speed is steady among the range 200° angle of driving link θ1.The influence on V7 is little in a certain range of deflection angle α.Deflection angle α influences the stability of mechanism in certain extent in up deflection mechanism,but little influence in down deflection mechanism.The motion stability of center,up,down deflection slider-double-crank mechanism is basic same.

关 键 词：双曲柄滑块机构 行程速比系数 运动平稳性 运动分析 

分 类 号：TH112[机械工程—机械设计及理论]