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雙絲杠與直線導(dǎo)軌結(jié)合部靜剛度分析
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“十一五”國(guó)家科技支撐計(jì)劃資助項(xiàng)目（2009ZX04002-051）


Static Stiffness Analysis of Joint of Double Screw and Linear Guides
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    摘要:

    基于彈性力學(xué)赫茲接觸理論,，對(duì)主軸箱在z軸不同位置時(shí)雙滾珠絲杠副軸向剛度、角接觸球軸承軸向剛度和直線導(dǎo)軌副線剛度進(jìn)行分析，建立了靜剛度模型。基于此模型,，結(jié)合有限元仿真,，得出永磁直線同步電動(dòng)機(jī)法向力對(duì)機(jī)床刀具點(diǎn)的變形,。仿真結(jié)果與實(shí)驗(yàn)結(jié)果對(duì)比表明,，兩者吻合很好,，驗(yàn)證了靜剛度模型的有效性。

    Abstract:

    Based on the Hertz contact theory of elastic mechanics, a static stiffness model of double ball screws joint was built by analyzing the linear stiffness of double linear guide rails and the axial stiffness of double ball screw and ball bearing. The permanent magnet linear synchronous motor’s normal force affected the deformation of the feeding system. Based on the static stiffness model, deformation of the tool point was analyzed by finite element method and compared with the experimental results. The simulation results were in good agreement with measured data and indicated the accuracy of the static stiffness model. 

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尹宜勇,祝莉平,賈志新,趙彤.雙絲杠與直線導(dǎo)軌結(jié)合部靜剛度分析[J].農(nóng)業(yè)機(jī)械學(xué)報(bào),2012,43(6):202-206. Yin Yiyong, Zhu Liping, Jia Zhixin, Zhao Tong. Static Stiffness Analysis of Joint of Double Screw and Linear Guides[J]. Transactions of the Chinese Society for Agricultural Machinery,2012,43(6):202-206.

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  • 在線發(fā)布日期: 2012-06-19
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