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</h3> <h6>来源Qwww.www.lgsvo.icu    发布旉Q?018-08-30</h6> <div class="detail" id="zoom" style="width:558px; overflow:hidden; margin-bottom:5px;"><p><p class="MsoNormal" style="text-indent:2em;"> <span style="font-size:16px;">伺服阀与比例阀q没有严格的规定Q因为比例阀的性能来的越好,逐渐的再像伺服阀靠近Q所以现在出C比例伺服阀Q比例阀和伺服阀的区别主要体现在以下几点Q?/span> </p> <p class="MsoNormal" style="text-align:center;text-indent:2em;"> <span style="font-size:16px;"> <img src="//cmsimgshow3.zhuchao.cc/4935/20130220094439.jpg?path=www.sffwx.com/uploads/cp/20130220094439.jpg" alt="比例阀" width="600" height="450" title="比例阀" align="" /> </span> </p> <p class="MsoNormal" style="text-indent:2em;"> <span style="font-size:16px;">1.</span><span style="font-size:16px;">驱动装置不同。比例阀的驱动装|是比例늣铁;伺服阀的驱动装|是力马达或力矩马达Q? </span> </p> <p class="MsoNormal" style="text-indent:2em;"> <span style="font-size:16px;">2.</span><span style="font-size:16px;">性能参数不同。滞环、中位死区、频宽、过滤精度等Ҏ不同,因此应用场合不同Q伺服阀和伺服比例阀主要应用在闭环控制系l,其它l构的比例阀主要应用在开环控pȝ及闭环速度控制pȝQ? </span> </p> <p class="MsoNormal" style="text-indent:2em;"> <span style="font-size:16px;">2.1</span><span style="font-size:16px;">伺服阀中位没有dQ比例阀有中位死区;  </span> </p> <p class="MsoNormal" style="text-indent:2em;"> <span style="font-size:16px;">2.2</span><span style="font-size:16px;">伺服阀的频响(响应频率Q更高,可以高达</span><span style="font-size:16px;">200Hz</span><span style="font-size:16px;">左右Q比例阀一般最高几?/span><span style="font-size:16px;">Hz</span><span style="font-size:16px;">Q? </span> </p> <p class="MsoNormal" style="text-indent:2em;"> <span style="font-size:16px;">2.3</span><span style="font-size:16px;">伺服阀Ҏ压a液的要求更高Q需要精qo才行Q否则容易堵塞,比例阀要求低一些;  </span> </p> <p class="MsoNormal" style="text-indent:2em;"> <span style="font-size:16px;">3.</span><span style="font-size:16px;">阀芯结构及加工_ֺ不同。比例阀采用阀?/span><span style="font-size:16px;">+</span><span style="font-size:16px;">阀体结构,阀体兼作阀套。伺服阀和伺服比例阀采用阀?/span><span style="font-size:16px;">+</span><span style="font-size:16px;">阀套的l构? </span> </p> <p class="MsoNormal" style="text-indent:2em;"> <span style="font-size:16px;">4.</span><span style="font-size:16px;">中位U类不同。比例换向阀h与普通换向阀怼的中位机能,而伺服阀中位只有</span><span style="font-size:16px;">O</span><span style="font-size:16px;">型(</span><span style="font-size:16px;">Rexroth</span><span style="font-size:16px;">产品?/span><span style="font-size:16px;">E</span><span style="font-size:16px;">型)? </span> </p> <p class="MsoNormal" style="text-indent:2em;"> <span style="font-size:16px;">5.</span><span style="font-size:16px;">阀的额定压降不同。而比例伺服阀性能介于伺服阀和比例阀之间。比例换向阀属于比例阀的一U,用来控制量和流向? </span> </p></p></div> <p><div class="hogh">上一?<a href="147.html">甉|伺服阀l修厂家教你如何保证甉|伺服阀正常工作 </a></div> <div class="hogh">下一?<a href="145.html">I格伺服l修中需要注意哪些事? 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