摘要
基于液压机滑块导向装置滑动副能量损失分析,建立了总效率损失的数学模型。基于能量损失最小原则,提出滑块导向装置最佳配合间隙的数值计算方法。在最佳配合间隙下对满足偏载工况下的最大许用侧向力进行分析,同时在极限偏载条件下对立柱与滑块间的导向装置滑动副的磨损进行了校核。据滑块导向装置滑动副的磨损校核方法,计算了滑块与立柱之间最佳导向长度,在总效率损失最小的原则下,计算了滑块导向装置滑动副的最佳配合间隙。案例分析验证了该计算方法的正确性。该方法为液压机滑块导向装置滑动副最佳配合的计算及磨损的校核提供了理论和方法指导。
Based on the energy loss analyses of the sliding pair in slide guide device of hydraulic press, a mathematical model of overall efficiency loss was established. Based on the principles of minimum overall efficiency loss, the numerical calculation method of optimum match clearance in guide device was proposed. And the maximum allowable eccentric load on wedge clearance conditions was proposed based on the calculated optimum clearance. In order to ensure guide device between the pillars and slide wouldn＇t fail due to the excessive wear, the wear check method under extreme conditions was proposed. According to wear check method, the best guide length was calculated based on the principle of minimum overall efficiency loss. The case analyzed and verified the correctness of the method, which may provide theoretical and methodological references for the design of optimum match in guide device.
出处
《中国机械工程》
EI
CAS
CSCD
北大核心
2016年第24期3267-3272,共6页
China Mechanical Engineering
基金
国家自然科学基金资助项目(51135004)
国家自然科学基金国际合作与交流项目(51561125002)
关键词
能量损失
最佳配合间隙
偏载
磨损校核
energy loss
optimum match clearance
eccentric load
wear check
