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id="tpnrxl7j" class="title"> <h3><a>空心滾珠絲杠的熱特性理論研宄-小結<small></small></a></h3> </div> <!-- 頁面標題結束 --> <hr class="featurette-divider"> <!-- 中部開始 --> <div id="tpnrxl7j" class="container"> <!-- 正文 --> <div id="tpnrxl7j" class="lead" id="print"> <p> <span style="line-height: 14pt; text-indent: 0pt; font-family: 宋體; letter-spacing: 0pt; font-size: 10.5pt;">2.3</span><span style="line-height: 14pt; text-indent: 0pt; font-family: 宋體; letter-spacing: 0pt; font-size: 10.5pt;">本章小結</span></p> <p class="NewStyle16" style="margin-top:0.0000pt; margin-right:0.0000pt; margin-bottom:0.0000pt; margin-left:0.0000pt; text-indent:26.0000pt; mso-pagination:none; text-align:justify; text-justify:inter-ideograph; "><span style="font-family: 宋體; letter-spacing: 0pt; font-size: 10.5pt;">本章從理論分析的角度對高速機床伺服傳動系統的溫度場及熱位移做了深入的 研究。在理論推導中，得出以下重要結論：</span><span style="font-family: 宋體; letter-spacing: 0pt; font-size: 10.5pt;"><o:p></o:p></span></p> <p class="NewStyle16" style="margin-top:0.0000pt; margin-right:0.0000pt; margin-bottom:0.0000pt; margin-left:0.0000pt; text-indent:26.0000pt; mso-pagination:none; text-align:justify; text-justify:inter-ideograph; "><span style="font-family: 宋體; letter-spacing: 0pt; font-size: 10.5pt;">1、</span><span style="font-family: 宋體; letter-spacing: 0pt; font-size: 10.5pt;"> </span><span style="font-family: 宋體; letter-spacing: 0pt; font-size: 10.5pt;">螺母摩擦和軸承摩擦是滾珠絲杠伺服傳動主要的熱源，其中，螺母的發熱量 最大。分析推導出熱變形與摩擦熱的產生與散失的關系。得出摩擦熱量與滾珠絲杠轉 速成正比，與滾珠絲杠的軸向載荷幾乎成正比的結論。</span><span style="font-family: 宋體; letter-spacing: 0pt; font-size: 10.5pt;"><o:p></o:p></span></p> <p class="NewStyle16" style="margin-top:0.0000pt; margin-right:0.0000pt; margin-bottom:0.0000pt; margin-left:0.0000pt; text-indent:26.0000pt; mso-pagination:none; text-align:justify; text-justify:inter-ideograph; "><span style="font-family: 宋體; letter-spacing: 0pt; font-size: 10.5pt;">2、</span><span style="font-family: 宋體; letter-spacing: 0pt; font-size: 10.5pt;"> </span><span style="font-family: 宋體; letter-spacing: 0pt; font-size: 10.5pt;">空心滾珠絲杠對于減小滾珠絲杠的熱伸長非常明顯，有效地抑制了滾珠絲杠 在高速進給時的熱變形量，減小了伺服進給系統的穩態誤差。</span><span style="font-family: 宋體; letter-spacing: 0pt; font-size: 10.5pt;"><o:p></o:p></span></p> <p class="NewStyle16" style="margin-top:0.0000pt; margin-right:0.0000pt; margin-bottom:0.0000pt; margin-left:0.0000pt; text-indent:26.0000pt; mso-pagination:none; text-align:justify; text-justify:inter-ideograph; "><span style="font-family: 宋體; letter-spacing: 0pt; font-size: 10.5pt;">3、</span><span style="font-family: 宋體; letter-spacing: 0pt; font-size: 10.5pt;"> </span><span style="font-family: 宋體; letter-spacing: 0pt; font-size: 10.5pt;">在仿真前通常要理論推導，為簡化模型及仿真提供相關的數據。</span><span style="font-family: 宋體; letter-spacing: 0pt; font-size: 10.5pt;"><o:p></o:p></span></p> <p class="NewStyle16" style="margin-top:0.0000pt; margin-right:0.0000pt; margin-bottom:0.0000pt; margin-left:0.0000pt; text-indent:26.0000pt; mso-pagination:none; text-align:justify; text-justify:inter-ideograph; "><span style="font-family: 宋體; letter-spacing: 0pt; font-size: 10.5pt;">4、</span><span style="font-family: 宋體; letter-spacing: 0pt; font-size: 10.5pt;"> </span><span style="font-family: 宋體; letter-spacing: 0pt; font-size: 10.5pt;">理論推導得出了空心/實心滾珠絲杠的發熱量及平均熱變形量。然而對于滾珠 絲杠的溫度分布及滾珠絲杠不同位置的熱應變及熱位移還需要更精確的有限元模型 仿真實現。</span><span style="font-family: 宋體; letter-spacing: 0pt; font-size: 10.5pt;"><o:p></o:p></span></p> <p class="NewStyle16" style="margin-top:0.0000pt; margin-right:0.0000pt; margin-bottom:0.0000pt; margin-left:0.0000pt; text-indent:26.0000pt; mso-pagination:none; text-align:justify; text-justify:inter-ideograph; "><span style="font-family: 宋體; letter-spacing: 0pt; font-size: 10.5pt;">5、</span><span style="font-family: 宋體; letter-spacing: 0pt; font-size: 10.5pt;"> </span><span style="font-family: 宋體; letter-spacing: 0pt; font-size: 10.5pt;">在理論推導時，熱力學、傳熱學的一些參數由實驗測定，本文根據傳熱學的 經驗數據（如格拉曉夫數）選取。由于條件限制，本課題對選取的一些參數</span><span style="font-family: 宋體; letter-spacing: 0pt; font-size: 10.5pt;">（</span><span style="font-family: 宋體; letter-spacing: 0pt; font-size: 10.5pt;">如對流 換熱系數設為常數、假設絲杠周圍的溫度為環境溫度</span><span style="font-family: 宋體; letter-spacing: 0pt; font-size: 10.5pt;">）</span><span style="font-family: 宋體; letter-spacing: 0pt; font-size: 10.5pt;">做了必要的假設。</span><span style="font-family: 宋體; letter-spacing: 0pt; font-size: 10.5pt;"><br clear="all" style="page-break-before:always;mso-break-type:section-break" /> </span></p> <p class="NewStyle16" style="margin-top:0.0000pt; margin-right:0.0000pt; margin-bottom:0.0000pt; margin-left:0.0000pt; text-indent:26.0000pt; mso-pagination:none; text-align:justify; text-justify:inter-ideograph; "> </p> <p class="NewStyle16" style="margin-top:0.0000pt; margin-right:0.0000pt; margin-bottom:0.0000pt; margin-left:0.0000pt; text-indent:26.0000pt; mso-pagination:none; text-align:justify; text-justify:inter-ideograph; "> </p> <p class="NewStyle16" style="margin-top:0.0000pt; margin-right:0.0000pt; margin-bottom:0.0000pt; margin-left:0.0000pt; text-indent:26.0000pt; mso-pagination:none; text-align:justify; text-justify:inter-ideograph; "><span style="font-size:9.0pt;font-family:宋體;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“空心滾珠絲杠在數控機床伺服進給系統中的應用研究”，因為編輯困難導致有些函數、表格、圖片、內容無法顯示，有需要者可以在網絡中查找相關文章！本文由伯特利數控整理發表文章均來自網絡僅供學習參考，轉載請注明！</span></p></div> <div id="tpnrxl7j" class="blank30"></div> <!-- tag --> <div id="tpnrxl7j" class="blank10"></div> 標簽： <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'>數控加工中心</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'>數控機床</a> <a href='/index.php?case=tag&act=show&tag=%E6%BB%9A%E7%8F%A0%E4%B8%9D%E6%9D%86' target='_blank'>滾珠絲桿</a> <!-- 分類 --> <div id="tpnrxl7j" class="blank10"></div> 分類： <a href='/bethel/type/jnc/type-1.html' target='_blank'>加工中心</a> <div id="tpnrxl7j" class="blank30"></div> <!--自動調用自定義字段--> <div id="tpnrxl7j" class="blank20"></div> <div id="tpnrxl7j" class="blank30"></div> <!-- 投票 --> <script src="/index.php?case=vote&act=view&aid=1010"></script> <!-- 自定義表單開始 --> <!-- 自定義表單結束 --> <div id="tpnrxl7j" class="blank60"></div> <!-- 上下頁開始 --> <div class="tpnrxl7j" id="page"> <strong>上一篇</strong><a href="/bethel/news/show_1009.html">空心滾珠絲杠進給系統的理論計算</a> <div id="tpnrxl7j" class="blank10"></div> <strong>下一篇</strong><a href="/bethel/news/show_1011.html">滾珠絲杠的仿真建模</a> </div> <!-- 上下頁結束 --> </div><!-- /container --> <!-- 相關文章開始 --> <div id="tpnrxl7j" class="blank60"></div> <!-- 頁面標題開始 --> <div 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