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主轴滚动轴承轴向预紧技术
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作者 邓军 刘新峰 岳远望 《今日自动化》 2019年第3期155-156,共2页
综述了角接触球轴承在电主轴中的应用现状。分析了电主轴预紧力与电主轴精度,速度和寿命的关系。综述了轴承定位预压技术和恒压预压技术。原则和特点;分析和评论液压装置、形状记忆合金弹簧、双金属垫片、压电装置、电磁装置和离心装置... 综述了角接触球轴承在电主轴中的应用现状。分析了电主轴预紧力与电主轴精度,速度和寿命的关系。综述了轴承定位预压技术和恒压预压技术。原则和特点;分析和评论液压装置、形状记忆合金弹簧、双金属垫片、压电装置、电磁装置和离心装置的压力预压技术和自动预压技术的原理和效果。最后,预测了电主轴预紧技术的未来发展趋势。 展开更多
关键词 主轴滚动轴 向预紧 预紧力
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Design and application of a new kind of rolling coupling 被引量:2
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作者 徐海良 何清华 《Journal of Central South University of Technology》 2005年第3期335-339,共5页
Based on Hertz theory of elastic contact and the design theory of ball bearings, a new type of rolling coupling was designed. The two halves of the rolling coupling can be moved relatively by a small axial force when ... Based on Hertz theory of elastic contact and the design theory of ball bearings, a new type of rolling coupling was designed. The two halves of the rolling coupling can be moved relatively by a small axial force when a great moment is exerted on it. The rolling coupling was used to connect the principal axis and the decelerator of continuous extrusion machine and it can greatly decrease the harmful axial forces on the continuous machine. The engineering formulas for the contact stress and distance of apporach of the rolling elements were deduced and the method for designing the rolling couplings was proposed. The formulas for the forces exerted on the rolling element were verified by the experiment. 展开更多
关键词 rolling coupling principal axis axial force Hertz theory elastic distortion contact stress exact constraint
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