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class="4">第2章数控机床主传动系统的能量流模型</span></a></p> <p class="21" style="margin:0cm;margin-bottom:.0001pt;text-align:justify; text-justify:inter-ideograph;text-indent:26.0pt;line-height:19.9pt;mso-line-height-rule: exactly;background:transparent"><span class="2">由于数控机床是机械加工系统的主体，因此在研宄机械加工系统的能量流特 性时应当首先从数控机床入手。当数控机床处于运行状态时，必然伴随着能量的 传递和消耗，将能量的输入、损耗、储存和能量的释放输出这一过程中所涉及的 能量源及传动系统称为数控机床的能量传输系统。</span></p> <p class="21" style="margin-top:0cm;margin-right:0cm;margin-bottom:17.0pt; margin-left:0cm;text-align:justify;text-justify:inter-ideograph;text-indent: 26.0pt;line-height:19.9pt;mso-line-height-rule:exactly;background:transparent"><span class="2">数控机床种类较多，应用也较为广泛，每种数控机床的用途和性能也有较大 差别，由此可知数控机床的能量传输系统也是多种多样的，但从大的方向上划分, 可把数控机床的能量流系统分为机床主传动系统和进给传动系统。而数控机床主 传动系统又可以细化为电机拖动系统和机械传动系统两部分。</span><o:p> </o:p></p> <!--[endif]--> <p class="21" style="margin:0cm;margin-bottom:.0001pt;text-align:justify; text-justify:inter-ideograph;text-indent:26.0pt;line-height:19.9pt;mso-line-height-rule: exactly;background:transparent"><span class="2">数控机床主传动系统包含电机拖动系统和机械传动系统两部分组成，首先对 这两部分进行分别分析描述和建模，然后再将这两个部分有机的联系起来，建立 数控机床主传动系统的能量流模型。主轴电机是数控机床主传动系统的主要驱动 装置，其也是数控机床主传动系统运行过程中的动力源，市场上关于数控机床电 机的种类十分繁多，其中以异步电动机和直流电动机为主。这两类电动机具有不 同的调速性能和可控制性，由此将数控机床主传动系统的调速形式分为有级变速 和无级变速两种，但无论何种方式的调速形式，数控机床主传动系统总能划分为 机械传动系统和电动机拖动系统，两者的差异只是体现在不同的调速方式下传动 链的长短上。</span></p> <p class="21" style="margin:0cm;margin-bottom:.0001pt;text-align:justify; text-justify:inter-ideograph;text-indent:26.0pt;line-height:19.9pt;mso-line-height-rule: exactly;background:transparent"><span class="2">少数普通机床和许多数控机床都是采用的直流电动机驱动的方式，通过齿轮</span><span class="2">传动配合实现降速和扩大输出转矩，调速方式采用的是无极变速调节；而大多数 普通机床和少数数控机床采用的是三相异步电动机的拖动系统和多级齿轮变速装 置的有级机械调速。两种形式的传动系统从能量传输的角度来看并没有本质区别， 由此可以推导出数控机床主传动系统的一般形式。</span></p> <p class="21" style="margin-top:0cm;margin-right:9.0pt;margin-bottom:14.05pt; margin-left:0cm;text-align:justify;text-justify:inter-ideograph;text-indent: 0cm;line-height:19.7pt;mso-line-height-rule:exactly;background:transparent"> </p> <p class="21" style="margin-top:0cm;margin-right:9.0pt;margin-bottom:14.05pt; margin-left:0cm;text-align:justify;text-justify:inter-ideograph;text-indent: 0cm;line-height:19.7pt;mso-line-height-rule:exactly;background:transparent"><span style="font-size:9.0pt;font-family:宋体;mso-ascii-font-family: "Times New Roman";mso-hansi-font-family:"Times New Roman";mso-bidi-font-family: "Times New Roman";mso-font-kerning:1.0pt;mso-ansi-language:EN-US;mso-fareast-language: ZH-CN;mso-bidi-language:AR-SA">本文采摘自“数控加工中心主传动系统能耗特性及运行节能技术研究”，因为编辑困难导致有些函数、表格、图片、内容无法显示，有需要者可以在网络中查找相关文章！本文由伯特利数控整理发表文章均来自网络仅供学习参考，转载请注明！</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 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