液压支架运动精度的可靠性分析  

Analysis on Motion Precision Reliability of Hydraulic Support

作　　者：秦东晨[1] 郭哲锋[1] 武红霞[1] 姚向豫[1] 于立[1] 

机构地区：[1]郑州大学机械工程学院,郑州450001

出　　处：《煤矿机械》2011年第4期97-99,共3页Coal Mine Machinery

摘　　要：采用运动精度可靠度的计算方法和连续接触模型的有效杆长理论,建立了液压支架顶梁运动轨迹的数学模型,研究了引入杆长误差和间隙误差时对运动精度的影响,以某型液压支架为例对运动精度可靠性进行了计算,用蒙特卡洛模拟法进行了验证,绘制了间隙误差与可靠度的T-R曲线图。Using the motion precision reliability calculation method and continuous contact model of the effective length theory, the motion trace mathematical model of hydraulic support top beam is established. The influence on the motion precision is researched when the bar length inaccuracy and the gap inaccuracy is applied. Using the hydraulic support as an example, the motion precision reliability is calculated. The Monte Carlo simulation method is used to verify. The T-R curve of the gap inaccuracy and the reliability is plotted.

关 键 词：液压支架 四连杆机构 运动精度 可靠度 数字特征 

分 类 号：TD355[矿业工程—矿井建设] TB114.3[理学—概率论与数理统计]