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transparent;"><span style="font-size: small;"><span class="41pt">第5章数控加工中心主传动系统节能优化与实验验证</span></span></a></p> <div class="Section1"> <p class="50" style="margin: 0cm 0cm 9.1pt; text-align: left; line-height: 14pt; page-break-after: avoid; background: transparent;"><a name="bookmark29"></a><span style="font-size: small;"><a name="bookmark29"><span class="5"><span style="font-family: SimSun;">5.1</span></span></a><span class="5">数控加工中心主传动系统节能分析</span></span></p> <p class="21" style="margin-top:0cm;margin-right:0cm;margin-bottom:21.25pt; 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 style="font-size: small;"><span class="2">通过对第四章中的式</span><span class="2"><span style="font-family: SimSun;">(4-17)</span></span><span class="2">分析后可知，可以通过多种途径达到降低数控加工中心 主传动系统能耗的目的：如改进工件加工工艺，优化加工时间，降低工件加工过 程中的待机空载时间；合理规范数控加工中心操作方法，降低数控加工中心加工过程中的 辅助系统能耗和各种机械损耗等。接下来通过具体的分析得到主传动系统相应的 节能优化措施。</span></span></p> <p class="21" style="margin-top:0cm;margin-right:0cm;margin-bottom:4.9pt; margin-left:0cm;text-align:justify;text-justify:inter-ideograph;text-indent: 26.0pt;line-height:11.0pt;mso-line-height-rule:exactly;background:transparent"><span style="font-size: small;"><span class="2">首先引入切削负载率^的概念，将数控加工中心的实际切削功率与额定切削功率</span><span class="21pt">之比定义为切削负载率在一般实际加工情况下，实际切削功率都小于额定切 </span><span class="2">削功率，而主传动系统的各种损耗可粗略的由式</span><span class="2"><span style="font-family: SimSun;">(5-2)</span></span><span class="2">估算出。</span></span></p> <p class="21" style="margin:0cm;margin-bottom:.0001pt;text-indent:26.0pt; line-height:25.9pt;mso-line-height-rule:exactly;mso-list:l0 level1 lfo1; background:transparent"><span style="font-size: small;"><!--[if !supportLists]-->①<span style="font-stretch: normal; line-height: normal; font-family: 'Times New Roman';"> </span><!--[endif]--><span class="2">降低数控加工中心主传动系统的各种损耗功率，即提高数控加工中心主传动系统输 出功率与输入功率之比；</span></span></p> <p class="21" style="margin-top:0cm;margin-right:0cm;margin-bottom:3.75pt; margin-left:0cm;text-indent:26.0pt;line-height:11.0pt;mso-line-height-rule: exactly;background:transparent"><span style="font-size: small;"><span class="21pt">数控加工中心主传动系统的各种损耗功率主要由电动机电损功率尸_、附加</span><span class="2">载荷损耗功率</span><span class="2TimesNewRoman"><span lang="EN-US">P<sub>ad</sub></span></span><span class="2">、电机的铜损、铁损以及机械传动损失功率/?等构成，如式</span><span class="2"><span style="font-family: SimSun;">(5-4) </span></span><span class="2">所示。</span></span></p> <p class="21" style="margin-top:0cm;margin-right:0cm;margin-bottom:4.25pt; margin-left:0cm;text-indent:26.0pt;line-height:11.0pt;mso-line-height-rule: exactly;background:transparent"><span style="font-size: small;"><span class="2">由上式可知，数控加工中心主传动系统各种损耗功率主要与主轴旋转角转速有</span><span class="2">关，而主轴旋转角转速又由变频器的频率等参数控制，因此首先可通过控制变频 器的频率来优化主轴旋转角速度，从而优化主轴转速，通过选取合理的主轴转速 来降低电机损耗，达到降低数控加工中心主传动系统能耗的目的。</span></span></p> <p class="21" style="margin-top:0cm;margin-right:0cm;margin-bottom:4.4pt; margin-left:0cm;text-align:justify;text-justify:inter-ideograph;text-indent: 26.0pt;line-height:11.0pt;mso-line-height-rule:exactly;mso-list:l0 level1 lfo1; tab-stops:47.05pt;background:transparent"><span style="font-size: small;"><!--[if !supportLists]-->②<span style="font-stretch: normal; line-height: normal; font-family: 'Times New Roman';"> </span><!--[endif]--><span class="2">提高数控加工中心主传动系统切削负载率；</span></span></p> <p class="21" style="margin:0cm;margin-bottom:.0001pt;text-indent:26.0pt; line-height:19.9pt;mso-line-height-rule:exactly;background:transparent"><span style="font-size: small;"><span class="2">在数控加工中心加工过程中要提高主传动系统切削负载率，可采取选择合适的切 削用量，采用高速切削，增加单位体积内工件材料的切削体积，有关研宄表明， 在大大提高切削速度的情况下，数控机床的切削功率将会提高30%至40%左右， 而切削力则会降低30%左右，选择尽量大的背吃刀量，在确定好本工序加工余量 的前提下最好能一次走到就完成；选择合理的加工路线，在保证工件加工精度和 粗糙度的前提下，尽量减少刀具的走刀路径，降低刀具在移动过程中的空载移动 时间；安装功率监控器以使机床保持最佳的运行状态等多种方式达到目的。</span></span></p> <p class="21" style="margin-top:0cm;margin-right:0cm;margin-bottom:4.4pt; margin-left:0cm;text-align:justify;text-justify:inter-ideograph;text-indent: 26.0pt;line-height:11.0pt;mso-line-height-rule:exactly;mso-list:l0 level1 lfo1; tab-stops:47.05pt;background:transparent"> </p> <span style="font-size: small;"> <p class="21" style="margin-top:0cm;margin-right:0cm;margin-bottom:4.4pt; margin-left:0cm;text-align:justify;text-justify:inter-ideograph;text-indent: 26.0pt;line-height:11.0pt;mso-line-height-rule:exactly;mso-list:l0 level1 lfo1; tab-stops:47.05pt;background:transparent"><!--[if !supportLists]-->③<span style="font-stretch: normal; line-height: normal; font-family: 'Times New Roman';"> </span><!--[endif]--><span class="2">降低加工过程的空载率</span><span class="2TimesNewRoman"><span lang="EN-US">C</span></span><span class="2"><sub><span style="font-family: SimSun;">;</span></sub></span><span class="2">，提高实载率</span><span class="2TimesNewRoman"><span lang="EN-US">A</span></span><span class="2"><sub><span style="font-family: SimSun;">;</span></sub></span><span class="2"><span style="font-family: SimSun;">;</span></span></p> </span> <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 style="font-size: small;"><span class="2">改进数控加工中心变速结构和减小变速时间（如采用预先变速和无极变速等</span><span class="2">），</span><span class="2">改 进夹具结构，减小换刀和工件装夹时间，安装空载自动启动装置，提高自动化程 度，减少辅助时间，改进数控加工中心主轴旋转加速的启动时间（如选取合理的变频</span><span class="2" style="font-family: 宋体;">器加速时间等），均有助于降低空载率</span><span class="2TimesNewRoman" style="font-family: 宋体;"><span lang="EN-US">c</span></span><span class="2" style="font-family: 宋体;"><sub><span style="font-family: SimSun;">;</span></sub></span><span class="2" style="font-family: 宋体;">。</span></span></p> </div> <p class="21" style="margin-top:0cm;margin-right:9.0pt;margin-bottom:0cm; margin-left: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 style="font-size: small;"><span class="2">数控加工中心完整的运行时间主要包括：启动时间、待机时间、加工时间和停机 时间四个部分，每一部分时间又是由几部分子时间所构成，其中启动时间、待机 时间和停机时间属于空载时间的范畴。在总运行时间不变的情况下，优化空载时</span><span class="2">间可以降低空载率</span><span class="2TimesNewRoman"><span lang="EN-US">c</span></span><span class="2"><sub><span style="font-family: SimSun;">;</span></sub></span><span class="2">，由于机床的空载率</span><span class="2TimesNewRoman"><span lang="EN-US">c</span></span><span class="2"><sub><span style="font-family: SimSun;">;</span></sub></span><span class="2">降低了，从另一个方面说明数控加工中心</span><span class="2">的切削负载率增加了，即降低了空载功率，提高了切削功率，从而起到优化主传 动系统能耗的目的。</span></span></p> <p class="21" style="margin-top:0cm;margin-right:9.0pt;margin-bottom:19.75pt; 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 style="font-size: small;"><span class="2">综上所述，由于数控加工中心结构较为复杂，想要从源头上降低数控加工中心电机损 耗或者传动损耗可能需要更改机床电机的设计，在实际操作中是很难实现的，大 多学者的研宄都从优化切削参数，提高数控加工中心切削负载的角度入手，以达到提 高机床效率的目的，本论文将从改进主轴旋转加速的启动时间，优化主轴变频器 加速时间的角度入手展开研究，由于主轴变频器加速时间属于数控加工中心启动时间 范畴，因此对变频器加速时间进行优化，即对启动时间进行优化，由前文可知启 动时间又属于空载时间的组成部分，优化了启动时间即优化了空载时间，即优化 了空载率，降低了空载功率，从而降低了数控加工中心主轴能耗，提高了数控加工中心主 轴能效，又由于数控加工中心主轴是主传动系统的主要组成部分，其能耗占据了主传 动系统总能耗的很大一部分，因此主轴能耗降低即相当于数控加工中心主传动系统的 总能耗也相应的降低了，从而达到了优化主传动系统能耗的目的。</span></span></p> <p class="21" style="margin-top:0cm;margin-right:9.0pt;margin-bottom:19.75pt; 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"> </p> <p class="21" style="margin-top:0cm;margin-right:9.0pt;margin-bottom:19.75pt; 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 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 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> <!-- 分类 --> 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href="/bethel/5-aix/show-2966.html" target="_blank">[了解更多]</a></p> </div> <div class="news-list list-border list-border-w"> <div class="list-date"> <span>05</span> <p>2024-11</p> </div> <h4><a title="自适应控制方法在混联五轴加工中心中的应用" href="/bethel/5-aix/show-2965.html" target="_blank">自适应控制方法在混联五轴加工中心中的应用</a></h4> <p>宇匠数控 备注：为保证文章的完整度，本文核心内容由PDF格式显示，如未有显示请刷新或转换浏览器尝试，手机浏览可能无法正常使用！本文摘要：通过对混联五轴加工中心自适应深度学习控制方法的 研 究，可 知 此 方 法 的 创 新 之 处 在 于：１）建 立 了 机 床 的 运 动 学 … <a href="/bethel/5-aix/show-2965.html" target="_blank">[了解更多]</a></p> </div> <div class="news-list list-border list-border-w"> <div class="list-date"> <span>05</span> <p>2024-11</p> </div> <h4><a title="五轴加工中心和五轴钻攻中心在机测量探头补偿" href="/bethel/5-aix/show-2959.html" target="_blank">五轴加工中心和五轴钻攻中心在机测量探头补</a></h4> <p>在机测量技术由于其成本低、检测效率高、无需二次装夹等优势被广泛用于零件加工测量当中，使得五轴加工中心和五轴钻攻中心，同时又兼具测量功能。在机测量系统的构成如图1所示，硬件部分主要是由高精度探头、信号接收器、机床整个本体，软件部分由机床控制系统、测量软件等组成[8]。待零件加工完成… <a href="/bethel/5-aix/show-2959.html" target="_blank">[了解更多]</a></p> </div> <div class="news-list 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