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class="21" style="margin:0cm;margin-bottom:.0001pt;text-align:justify; text-justify:inter-ideograph;text-indent:26.0pt;line-height:23.3pt;mso-line-height-rule: exactly;background:transparent"><span class="2">本文参考了国内外关于油气润滑技术的各种研宄并且进行了实地调研。对油气润 滑系统工作原理进行研宄，分析了油气润滑机理；研宄了弹性流体动力润滑的润滑原 理，结合油气润滑的特殊性，推导出来油气润滑的润滑机理；应用热阻网络法对轴承 进行了油气润滑的热分析；并且通过试验进一步验证上述理论的正确性。本文在对数 控螺杆铣床主轴轴承油气润滑机理的研究中,通过对润滑系统的润滑机理、结构及油 气润滑参数获得了如下主要结论：</span></p> <p class="21" style="margin:0cm;margin-bottom:.0001pt;text-align:justify; text-justify:inter-ideograph;text-indent:26.0pt;line-height:23.3pt;mso-line-height-rule: exactly;mso-list:l0 level1 lfo1;tab-stops:49.4pt;background:transparent"><!--[if !supportLists]--><span style="font-family: SimSun;">(1)<span style="font-stretch: normal; font-size: 7pt; line-height: normal; font-family: 'Times New Roman';"> </span></span><!--[endif]--><span class="2">通过弹性流体动力润滑理论，得出了油气润滑的最小油膜厚度与普通油润滑 相比，厚膜更厚，承载能力更强，润滑效果更好。</span></p> <p class="21" style="margin:0cm;margin-bottom:.0001pt;text-align:justify; text-justify:inter-ideograph;text-indent:26.0pt;line-height:23.3pt;mso-line-height-rule: exactly;mso-list:l0 level1 lfo1;tab-stops:49.4pt;background:transparent"><!--[if !supportLists]--><span style="font-family: SimSun;">(2)<span style="font-stretch: normal; font-size: 7pt; line-height: normal; font-family: 'Times New Roman';"> </span></span><!--[endif]--><span class="2">采用热阻网络法分析轴承的径向传热过程，得到了油气润滑比普通润滑对流 换热系数更大，也就是油气润滑带走的热量更多，轴承剩余热量更少，油气润滑使轴 承温升更低。</span></p> <p class="21" style="margin:0cm;margin-bottom:.0001pt;text-align:justify; text-justify:inter-ideograph;text-indent:26.0pt;line-height:23.3pt;mso-line-height-rule: exactly;mso-list:l0 level1 lfo1;tab-stops:49.4pt;background:transparent"><!--[if !supportLists]--><span style="font-family: SimSun;">(3)<span style="font-stretch: normal; font-size: 7pt; line-height: normal; font-family: 'Times New Roman';"> </span></span><!--[endif]--><span class="2">利用大量实验数据，得到了油气润滑参数对油气润滑效果的关系，轴承转速 越大，轴承温升越高；润滑油粘度增加，轴承温升变高；压缩空气压力增大，轴承温 升降低。</span></p> <p class="21" style="margin:0cm;margin-bottom:.0001pt;text-align:justify; text-justify:inter-ideograph;text-indent:26.0pt;line-height:23.3pt;mso-line-height-rule: exactly;background:transparent"><span class="2">论文分析角接触球轴承温升影响因素，并对其进行实验研宄得到相应结论，但存 在不足，主要有：</span></p> <p class="21" style="margin:0cm;margin-bottom:.0001pt;text-align:justify; text-justify:inter-ideograph;text-indent:26.0pt;line-height:23.3pt;mso-line-height-rule: exactly;mso-list:l1 level1 lfo2;tab-stops:49.15pt;background:transparent"><!--[if !supportLists]--><span style="font-family: SimSun;">(1)<span style="font-stretch: normal; font-size: 7pt; line-height: normal; font-family: 'Times New Roman';"> </span></span><!--[endif]--><span class="2">研宄中理论推导油气润滑机理时，采用了简易的模型，忽略一些现实中的因 素。</span></p> <p class="21" style="margin:0cm;margin-bottom:.0001pt;text-align:justify; text-justify:inter-ideograph;text-indent:26.0pt;line-height:23.3pt;mso-line-height-rule: exactly;mso-list:l1 level1 lfo2;tab-stops:49.4pt;background:transparent"><!--[if !supportLists]--><span style="font-family: SimSun;">(2)<span style="font-stretch: normal; font-size: 7pt; line-height: normal; font-family: 'Times New Roman';"> </span></span><!--[endif]--><span class="2">在轴承热分析中通过热阻网络法只进行了轴承径向的热传递分析，忽略了轴 承的轴向热传递过程，计算时压缩空气的强迫对流换热系数不能准确计算，只能依据 经验公式估测；不能精确计算轴承摩擦力矩和摩擦热。</span></p> <p class="21" style="margin:0cm;margin-bottom:.0001pt;text-align:justify; text-justify:inter-ideograph;text-indent:26.0pt;line-height:23.3pt;mso-line-height-rule: exactly;mso-list:l1 level1 lfo2;tab-stops:49.15pt;background:transparent"><!--[if !supportLists]--><span style="font-family: SimSun;">(3)<span style="font-stretch: normal; font-size: 7pt; line-height: normal; font-family: 'Times New Roman';"> </span></span><!--[endif]--><span class="2">已经完成的实验中，由于实验设备的要求，许多参数无法进行修改，润滑参 数对润滑效果的影响不能全部得到规律。</span></p></div> <div class="blank30"></div> <!-- tag --> <div class="blank10"></div> 标签： <a href='/index.php?case=tag&act=show&tag=%E5%8A%A0%E5%B7%A5%E4%B8%AD%E5%BF%83' target='_blank'>加工中心</a> <a href='/index.php?case=tag&act=show&tag=%E6%95%B0%E6%8E%A7%E5%8A%A0%E5%B7%A5%E4%B8%AD%E5%BF%83' target='_blank'>数控加工中心</a> <a href='/index.php?case=tag&act=show&tag=CNC%E5%8A%A0%E5%B7%A5%E4%B8%AD%E5%BF%83' target='_blank'>CNC加工中心</a> <a href='/index.php?case=tag&act=show&tag=%E6%95%B0%E6%8E%A7%E6%9C%BA%E5%BA%8A' target='_blank'>数控机床</a> <a href='/index.php?case=tag&act=show&tag=%E4%B8%BB%E8%BD%B4' target='_blank'>主轴</a> <a href='/index.php?case=tag&act=show&tag=%E8%BD%B4%E6%89%BF' target='_blank'>轴承</a> <!-- 分类 --> <div class="blank10"></div> 分类： <a href='/bethel/type/jnc/type-1.html' target='_blank'>加工中心</a> <div class="blank30"></div> <!--自动调用自定义字段--> <div class="blank20"></div> <div class="blank30"></div> <!-- 投票 --> <script 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