滚动直线导轨副额定静载荷研究
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摘要
为了解决滚动直线导轨副额定静载荷难以直接测定的现状,基于滚动直线导轨副的结构特点,结合ISO14728-2关于滚动直线导轨副额定静载荷的定义和计算方法,提出利用滚动直线导轨副加载/卸载刚性曲线来间接测定其额定静载荷的试验方案,并且实际测定了某商用滚动直线导轨副的额定静载荷,验证了该试验方案的可行性。在试验的基础上,进一步分析了滚动直线导轨副的承载变形机理,指出现有滚动直线导轨副额定静载荷计算方法的不足,提出考虑承载过程中接触角改变的修正算法,计算结果显示该算法能显著降低计算误差。
To change the present situation of having difficulty in measuring the rated static load of linear rolling guide directly,an indirect protocol using the load/unload stiffness curve of linear rolling guide is proposed based on the structural characteristics and the definition and calculation formula specified in ISO14728-2 of linear rolling guide. A commercial linear rolling guide is tested to verify the feasibility of the protocol mentioned above. Furthermore,a deficiency of existing calculation method is pointed out on the strength of experimental results and the deformation mechanism of linear rolling guide,and a correction algorithm is put forward considering the contact angle change which reduces the calculation error remarkably.
To change the present situation of having difficulty in measuring the rated static load of linear rolling guide directly,an indirect protocol using the load/unload stiffness curve of linear rolling guide is proposed based on the structural characteristics and the definition and calculation formula specified in ISO14728-2 of linear rolling guide. A commercial linear rolling guide is tested to verify the feasibility of the protocol mentioned above. Furthermore,a deficiency of existing calculation method is pointed out on the strength of experimental results and the deformation mechanism of linear rolling guide,and a correction algorithm is put forward considering the contact angle change which reduces the calculation error remarkably.
引文
[1]孙健利,刘端,廖道训.直线滚动导轨额定静载荷的计算[J].华中理工大学学报,1989,17(6):105-110.
[2]孙健利,赵虎,陈锐.滚动直线导轨副滚道几何尺寸与性能的关系[J].制造技术与机床,2001(10):22-24.
[3]Johnson K L.Contact mechanics[J].Journal of Tribology,1985,108(4):464.
[4]Yhland E.Static load carrying capacity-shake-down[J].Ball Bearing Journal,1982,211:1-8.
[5]王威.机床滚动直线传动部件的力学特性研究[D].大连:大连理工大学,2010.
[6]孙健利,方健,程远雄.基于ISO14728-2标准滚动直线导轨副额定静载荷分析[J].制造技术与机床,2006(2):119-122.
[7]方健.滚动直线导轨副性能分析及静刚度试验机研制[D].武汉:华中科技大学,2006.
[8]孙健利.滚柱直线导轨副额定静载荷分析[J].金属加工(冷加工),2008(10):37-38.
[9]赵美玲,孙健利.滚柱直线导轨副额定静扭矩的计算[J].金属加工(冷加工),2008(14):33-55.
[10]衡豪,王禹林,冯虎田.滚动直线导轨副静刚度试验装置设计及试验方案研究[J].组合机床与自动化加工技术,2014(2):106-109.
[11]Shaw D,Su W L.Stiffness Analysis of Linear Guideways Without Preload[J].Journal of Mechanics,2013,29(2):281-286.
[2]孙健利,赵虎,陈锐.滚动直线导轨副滚道几何尺寸与性能的关系[J].制造技术与机床,2001(10):22-24.
[3]Johnson K L.Contact mechanics[J].Journal of Tribology,1985,108(4):464.
[4]Yhland E.Static load carrying capacity-shake-down[J].Ball Bearing Journal,1982,211:1-8.
[5]王威.机床滚动直线传动部件的力学特性研究[D].大连:大连理工大学,2010.
[6]孙健利,方健,程远雄.基于ISO14728-2标准滚动直线导轨副额定静载荷分析[J].制造技术与机床,2006(2):119-122.
[7]方健.滚动直线导轨副性能分析及静刚度试验机研制[D].武汉:华中科技大学,2006.
[8]孙健利.滚柱直线导轨副额定静载荷分析[J].金属加工(冷加工),2008(10):37-38.
[9]赵美玲,孙健利.滚柱直线导轨副额定静扭矩的计算[J].金属加工(冷加工),2008(14):33-55.
[10]衡豪,王禹林,冯虎田.滚动直线导轨副静刚度试验装置设计及试验方案研究[J].组合机床与自动化加工技术,2014(2):106-109.
[11]Shaw D,Su W L.Stiffness Analysis of Linear Guideways Without Preload[J].Journal of Mechanics,2013,29(2):281-286.