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href="news_160.html">行業知識</a> ? <a>挖泥船上電力傳動和直接傳動的區別</a> </div> </div></div> <div style="clear:both"></div> </div></div><div id="mfid7" class="mf" style="margin: 15px; width: 96.8586%;"><div id="_ctl5_box" class="box166_1"> <div class="title"> <h2 class="title1" style="font-size: 20px; color: #333; margin-bottom: 10px; font-weight: normal;">挖泥船上電力傳動和直接傳動的區別</h2> <p> <span class="fromF">來源：</span> <span class="timeM">時間：2019-01-03 16:34:07</span> <span class="timeM">瀏覽次數：<label id="_ctl5_ClickRead" class="ClickRead"></label></span> </p> </div> <div class="contMain"> <div class="content"> <div id="_ctl5_nsContentDiv" class="nscontent"><p> 挖泥船上電力傳動是由主機驅動主發電機，將發出的電送到主配電板，再由主配電板供電給主電動機，從而驅動挖泥船螺旋槳運轉的一種傳動方式。 </p> <p> <br /> </p> <p> 挖泥船上電力傳動和直接傳動的區別 </p> <p> <br /> </p> <p> 這種傳動方式的優點如下： </p> <p> <br /> </p> <p> (1)挖泥船上主機和螺旋槳之間沒有機械聯系，可省去中間軸及軸承;機能布置靈活; </p> <p> <br /> </p> <p> (2)挖泥船上主機轉速不受螺旋槳轉速的限制，可選用中、高速柴油機，并可在柴油機恒定轉速下調節電動機轉速，使螺旋槳轉速得到均勻、大范圍地調節; </p> <p> <br /> </p> <p> (3)螺旋槳反轉是靠改變挖泥船主電動機(直流)電流方向來完成的，倒車功率大，操縱容易，反轉迅速，船舶機動性能提高; </p> <p> <br /> </p> <p> (4)挖泥船上主電動機對外界負荷的變化適應性好，甚至可以短時間堵轉。 </p> <p> <br /> </p> <p> 缺點： </p> <p> <br /> </p> <p> (1)需要經過機械能變電能、電能變機械能兩次能量轉換，傳動效率低; </p> <p> <br /> </p> <p> (2)增加了主發電機及主電動機，使挖泥船動力裝置總的重量和尺寸都增加，造價和維護費用提高。 </p> <p> <br /> </p> <p> 挖泥船直接傳動是主機動力直接通過軸系傳遞給螺旋槳的傳動方式。在這種傳動方式中，主機和螺旋槳之間除了傳動軸系外，沒有減速和離合設備，運轉中挖泥船上螺旋槳和主機始終具有相同的轉向和轉速。 </p> <p> <br /> </p> <p> 這種傳動方式的優點如下： </p> <p> <br /> </p> <p> (1)結構簡單，維護管理方便 </p> <p> <br /> </p> <p> 只要安裝時定位正確，外加在平時管理中注意潤滑冷卻，一般不會出現大問題。 </p> <p> <br /> </p> <p> (2)經濟性好.傳動損失少，傳動效率高 </p> <p> <br /> </p> <p> 主機多為耗油率低的大型低速柴油機。螺旋槳轉速較低，推進效率較高。 </p> <p> <br /> </p> <p> (3)工作可靠，壽命長 </p> <p> <br /> </p> <p> 缺點： </p> <p> <br /> </p> <p> 整個動力裝置的重量尺寸大，要求主機有可反轉性能，非設計工況下運轉時經濟性差，船舶微速航行速度受到主機低穩定轉速的限制。 </p> <p> <br /> </p> <p> 關于挖泥船上電力傳動和直接傳動的區別就先簡單的為您介紹到這里，希望通過以上內容的介紹，能對您有所幫助。 </p> <p> <br /> </p> <p> 青州市巨龍環?？萍加邢薰臼且患覍Ｗ⒂谘邪l、設計、生產、銷售異型水上工程船舶及工作平臺，是疏浚設備、水域環保設備、采選礦設備和沙石處理設備的專業制造商，是中小型水上工程設備及礦沙處理設備的可靠服務商。 </p> <p> 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