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<SPAN lang=EN-US style="FONT-SIZE: 9pt; FONT-FAMILY: ??; mso-bidi-font-family: 宋体; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA; mso-fareast-font-family: 宋体">
<><BR style="mso-special-character: line-break">请问各位老师:</P>
<> 如果数控机械滑台上的伺服电机改为步进电机,为选择步进电机,<SPAN style="FONT-SIZE: 9pt; FONT-FAMILY: 宋体; mso-bidi-font-family: 宋体; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA; mso-ascii-font-family: ??; mso-hansi-font-family: ??">计算电机输出的总力矩</SPAN><SPAN lang=EN-US style="FONT-SIZE: 9pt; FONT-FAMILY: ??; mso-bidi-font-family: 宋体; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA; mso-fareast-font-family: 宋体"><FONT face="宋体, MS Song">M时(公式如下),对于卧式和立式的机床,公式代数是否一致?对于立式机床,滑台立置,由于滚珠丝杠没有自锁,Mf---<SPAN style="FONT-SIZE: 9pt; FONT-FAMILY: 宋体; mso-bidi-font-family: 宋体; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA; mso-ascii-font-family: ??; mso-hansi-font-family: ??">导轨摩擦折算至电机的转矩 是否为零?请老师们给予帮助.谢谢啦~~</SPAN></FONT></SPAN></P>
<><SPAN lang=EN-US style="FONT-SIZE: 9pt; FONT-FAMILY: ??; mso-bidi-font-family: 宋体; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA; mso-fareast-font-family: 宋体"><FONT face="宋体, MS Song"><SPAN style="FONT-SIZE: 9pt; FONT-FAMILY: 宋体; mso-bidi-font-family: 宋体; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA; mso-ascii-font-family: ??; mso-hansi-font-family: ??"><SPAN style="FONT-SIZE: 9pt; FONT-FAMILY: 宋体; mso-bidi-font-family: 宋体; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA; mso-ascii-font-family: ??; mso-hansi-font-family: ??">计算电机输出的总力矩</SPAN><SPAN lang=EN-US style="FONT-SIZE: 9pt; FONT-FAMILY: ??; mso-bidi-font-family: 宋体; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA; mso-fareast-font-family: 宋体"><FONT face="宋体, MS Song">M <BR><BR>M=Ma+Mf+Mt (1-3) <BR>Ma=(Jm+Jt).n/T×1.02×10ˉ2 (1-4) <BR><BR></FONT></SPAN><SPAN style="FONT-SIZE: 9pt; FONT-FAMILY: 宋体; mso-bidi-font-family: 宋体; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA; mso-ascii-font-family: ??; mso-hansi-font-family: ??">式中</SPAN><SPAN lang=EN-US style="FONT-SIZE: 9pt; FONT-FAMILY: ??; mso-bidi-font-family: 宋体; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA; mso-fareast-font-family: 宋体"><FONT face="宋体, MS Song"> <BR>Ma ---</FONT></SPAN><SPAN style="FONT-SIZE: 9pt; FONT-FAMILY: 宋体; mso-bidi-font-family: 宋体; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA; mso-ascii-font-family: ??; mso-hansi-font-family: ??">电机启动加速力矩</SPAN><SPAN lang=EN-US style="FONT-SIZE: 9pt; FONT-FAMILY: ??; mso-bidi-font-family: 宋体; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA; mso-fareast-font-family: 宋体"><FONT face="宋体, MS Song">(N.m) <BR>Jm</FONT></SPAN><SPAN style="FONT-SIZE: 9pt; FONT-FAMILY: 宋体; mso-bidi-font-family: 宋体; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA; mso-ascii-font-family: ??; mso-hansi-font-family: ??">、</SPAN><SPAN lang=EN-US style="FONT-SIZE: 9pt; FONT-FAMILY: ??; mso-bidi-font-family: 宋体; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA; mso-fareast-font-family: 宋体"><FONT face="宋体, MS Song">Jt---</FONT></SPAN><SPAN style="FONT-SIZE: 9pt; FONT-FAMILY: 宋体; mso-bidi-font-family: 宋体; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA; mso-ascii-font-family: ??; mso-hansi-font-family: ??">电机自身惯量与负载惯量</SPAN><SPAN lang=EN-US style="FONT-SIZE: 9pt; FONT-FAMILY: ??; mso-bidi-font-family: 宋体; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA; mso-fareast-font-family: 宋体"><FONT face="宋体, MS Song">(Kg.cm.s2) <BR>n---</FONT></SPAN><SPAN style="FONT-SIZE: 9pt; FONT-FAMILY: 宋体; mso-bidi-font-family: 宋体; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA; mso-ascii-font-family: ??; mso-hansi-font-family: ??">电机所需达到的转速</SPAN><SPAN lang=EN-US style="FONT-SIZE: 9pt; FONT-FAMILY: ??; mso-bidi-font-family: 宋体; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA; mso-fareast-font-family: 宋体"><FONT face="宋体, MS Song">(r/min) <BR>T---</FONT></SPAN><SPAN style="FONT-SIZE: 9pt; FONT-FAMILY: 宋体; mso-bidi-font-family: 宋体; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA; mso-ascii-font-family: ??; mso-hansi-font-family: ??">电机升速时间</SPAN><SPAN lang=EN-US style="FONT-SIZE: 9pt; FONT-FAMILY: ??; mso-bidi-font-family: 宋体; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA; mso-fareast-font-family: 宋体"><FONT face="宋体, MS Song">(s) <BR><BR>Mf=(u.W.s)/(2πηi)×10ˉ2 (1-5) <BR><BR>Mf---</FONT></SPAN><SPAN style="FONT-SIZE: 9pt; FONT-FAMILY: 宋体; mso-bidi-font-family: 宋体; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA; mso-ascii-font-family: ??; mso-hansi-font-family: ??">导轨摩擦折算至电机的转矩</SPAN><SPAN lang=EN-US style="FONT-SIZE: 9pt; FONT-FAMILY: ??; mso-bidi-font-family: 宋体; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA; mso-fareast-font-family: 宋体"><FONT face="宋体, MS Song">(N.m) <BR>u---</FONT></SPAN><SPAN style="FONT-SIZE: 9pt; FONT-FAMILY: 宋体; mso-bidi-font-family: 宋体; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA; mso-ascii-font-family: ??; mso-hansi-font-family: ??">摩擦系数</SPAN><SPAN lang=EN-US style="FONT-SIZE: 9pt; FONT-FAMILY: ??; mso-bidi-font-family: 宋体; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA; mso-fareast-font-family: 宋体"><FONT face="宋体, MS Song"> <BR>η---</FONT></SPAN><SPAN style="FONT-SIZE: 9pt; FONT-FAMILY: 宋体; mso-bidi-font-family: 宋体; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA; mso-ascii-font-family: ??; mso-hansi-font-family: ??">传递效率</SPAN><SPAN lang=EN-US style="FONT-SIZE: 9pt; FONT-FAMILY: ??; mso-bidi-font-family: 宋体; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA; mso-fareast-font-family: 宋体"><FONT face="宋体, MS Song"> <BR><BR>Mt=(Pt.s)/(2πηi)×10ˉ2 (1-6) <BR><BR>Mt---</FONT></SPAN><SPAN style="FONT-SIZE: 9pt; FONT-FAMILY: 宋体; mso-bidi-font-family: 宋体; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA; mso-ascii-font-family: ??; mso-hansi-font-family: ??">切削力折算至电机力矩</SPAN><SPAN lang=EN-US style="FONT-SIZE: 9pt; FONT-FAMILY: ??; mso-bidi-font-family: 宋体; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA; mso-fareast-font-family: 宋体"><FONT face="宋体, MS Song">(N.m) <BR>Pt---</FONT></SPAN><SPAN style="FONT-SIZE: 9pt; FONT-FAMILY: 宋体; mso-bidi-font-family: 宋体; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA; mso-ascii-font-family: ??; mso-hansi-font-family: ??">最大切削力</SPAN><SPAN lang=EN-US style="FONT-SIZE: 9pt; FONT-FAMILY: ??; mso-bidi-font-family: 宋体; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA; mso-fareast-font-family: 宋体"><FONT face="宋体, MS Song">(N) </FONT></SPAN></SPAN></FONT></SPAN></SPAN></P> |
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