摘要
电驱气锤是一种带有高频冲击运动的特殊钻锤。通过建立气动冲击机构的数学模型并进行仿真计算,可快速地实现对各冲击参数的研究。通过对各状态量变化的计算曲线分析表明,AMESim模型准确展现了冲击气锤活塞的运动规律。研究中分析了不同频率范围内,频率、补气孔位置对冲击性能的影响。并在给定输入频率下,确定了补气孔的最优位置范围。该研究方法及结论对同类型气动冲击机构的参数设计具有理论指导意义。
An electrically driven shock pneumatic hammer is a special drill hammer with high frequency shock motion. By establishing a pneumatic impact mechanism＇s mathematical model and simulating calculation, the pneumatic shock parameters were studied. Through analyzing each state variable＇s varying curve of the impact piston, it was indicated that the AMESim model reveals correctly the movement rule of the shock pneumatic hammer＇s pistons. In different frequency range, the effects of the location of gas supply hole and frequency on the shock properties were analyzed. And at a given input frequency, the optimal range of the gas supply hole＇ location was determined. For the same type of other pneumatic shock meehanism＇s parameter design, the method proposed and results had a theoretical guidance significance.
出处
《振动与冲击》
EI
CSCD
北大核心
2012年第19期31-35,共5页
Journal of Vibration and Shock
基金
国家自然科学基金(11272122
50775075)
关键词
气动冲击锤
模型
仿真
pneumatic shock hammer
model
simulation
