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href="http://www.cdcfah.com/">首頁?<a href="http://www.cdcfah.com/cp/">產(chǎn)品供應(yīng)</a>?<a href="http://www.cdcfah.com/cp/first-_jxjxysb/">機(jī)械及行業(yè)設(shè)備</a>?<a href="http://www.cdcfah.com/cp/second-jxjxysb_yyjyyj/">液壓機(jī)械與元件</a>?<a href="http://www.cdcfah.com/cp/third-yyjyyj_yeyaxitong/">液壓系統(tǒng)</a>?精密液壓機(jī) 值得信賴蘇州旭展機(jī)械供應(yīng)</p><div id="0aqygws" class="leftbox clearfix"><h1>精密液壓機(jī) 值得信賴蘇州旭展機(jī)械供應(yīng)</h1><div id="mkaywcs" class="proBig"><div id="2a0siii" class="bigimg"><div><p class="pic"><img src="https://tyunfile.71360.com/UploadFile/xuzhan1996/637368875363310547/6409167.png" class="vcenter" onerror="javascript:this.src='/static/new_net_01/images/nopic.jpg';"></p></div></div><div id="w2cqoe0" class="smallimg"><div><p class="pic"><img src="https://tyunfile.71360.com/UploadFile/xuzhan1996/637368875363310547/6409167.png" class="vcenter" onerror="javascript:this.src='/static/new_net_01/images/nopic.jpg';"></p></div></div></div><div id="swaiyec" class="content"><p><span>需求數(shù)量：</span>0</p><p><span>價(jià)格要求：</span>面議</p><p><span>所在地：</span>江蘇省</p><p><span>包裝要求：</span><span style="color: #f30;"></span></p><p><span>產(chǎn)品關(guān)鍵詞：</span>精密液壓機(jī),液壓系統(tǒng)</p><p><span>***更新：</span>2021-02-02 11:16:31</p><p><span id="click" >瀏覽次數(shù)：1次</span></p><a rel="nofollow" class="button">聯(lián)系我們</a></div></div><div id="syo0wca" class="rightbox"><h3>公司基本資料信息</h3><p style="border:0;"><a rel="nofollow">蘇州旭展機(jī)械有限公司</a></p><p><span>聯(lián)系人：</span>邱小姐</p><p><span>郵箱: </span>2851551878@qq.com</p><p><span>電話: </span>13812753904</p><p><span>傳真: </span>138_</p><p><span>網(wǎng)址: </span>http://www.xu-zhan.com</p><p><span>手機(jī): </span>138-12753904</p><p><span>地址: </span>黃埭鎮(zhèn)東橋長旺路150號</p><p>[當(dāng)前離線] <a rel="nofollow"> [加為商友] </a><a rel="nofollow"> [發(fā)送信件] </a></p></div></div><div id="0sqc8s0" class="page-proshow02"><p class="title">詳細(xì)說明</p><div id="ymiwu0i" class="box"><p><p style="text-indent:25px">液壓傳動中由液壓泵、液壓控制閥、液壓執(zhí)行元件（液壓缸和液壓馬達(dá)等）和液壓輔件（管道和蓄能器等）組成的液壓系統(tǒng)。液壓泵把機(jī)械能轉(zhuǎn)換成液體的壓力能，液壓控制閥和液壓輔件控制液壓介質(zhì)的壓力、流量和流動方向，將液壓泵輸出的壓力能傳給執(zhí)行元件，執(zhí)行元件將液體壓力能轉(zhuǎn)換為機(jī)械能，以完成要求的動作。 1）動力元件，即液壓泵，其職能是將原動機(jī)的機(jī)械能轉(zhuǎn)換為液體的壓力動能（表現(xiàn)為壓力、流量），其作用是為液壓系統(tǒng)提供壓力油，是系統(tǒng)的動力源。 2）執(zhí)行元件，指液壓缸或液壓馬達(dá)，其職能是將液壓能轉(zhuǎn)換為機(jī)械能而對外做功，液壓缸可驅(qū)動工作機(jī)構(gòu)實(shí)現(xiàn)往復(fù)直線運(yùn)動（或擺動），液壓馬達(dá)可完成回轉(zhuǎn)運(yùn)動。 3）控制元件，指各種閥利用這些元件可以控制和調(diào)節(jié)液壓系統(tǒng)中液體的壓力、流量和方向等，以保證執(zhí)行元件能按照人們預(yù)期的要求進(jìn)行工作。 4）輔助元件，包括油箱、濾油器、管路及接頭、冷卻器、壓力表等。它們的作用是提供必要的條件使系統(tǒng)正常工作并便于監(jiān)測控制。 5）工作介質(zhì)，精密液壓機(jī)，精密液壓機(jī)，精密液壓機(jī)，即傳動液體，通常稱液壓油。液壓系統(tǒng)就是通過工作介質(zhì)實(shí)現(xiàn)運(yùn)動和動力傳遞的，另外液壓油還可以對液壓元件中相互運(yùn)動的零件起潤滑作用。液壓系統(tǒng)可分為兩類：液壓傳動系統(tǒng)和液壓控制系統(tǒng)。精密液壓機(jī)</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="精密液壓機(jī),液壓系統(tǒng)" src="https://tyunfile.71360.com/UploadFile/xuzhan1996/637368875363310547/6409167.png"></div><p style="text-indent:25px">液壓系統(tǒng)空穴現(xiàn)象：原因：液壓油中總含有一定量的空氣，通常可溶解于油中，也可以氣泡的形式混合于油中。當(dāng)壓力低于空氣分離壓力時(shí)，溶解于油中的空氣分離出來，形成氣泡；當(dāng)壓力降至油液的飽和蒸氣壓力以下時(shí)，油液會沸騰而產(chǎn)生大量氣泡。這些氣泡混雜于油液中形成不連續(xù)狀態(tài)，這種現(xiàn)象稱為空穴現(xiàn)象。部位：吸油口及吸油管中低于大氣壓處，易產(chǎn)生氣穴；油液流經(jīng)節(jié)流口等狹小縫隙處時(shí)，由于速度的增加，使壓力下降，也會產(chǎn)生氣穴。危害：氣泡隨油液運(yùn)動到高壓區(qū)，在高壓作用下迅速破裂，造成體積突然減小、周圍高壓油高速流過來補(bǔ)充，引起局部瞬間沖擊，壓力和溫度急劇升高并產(chǎn)生強(qiáng)烈的噪聲和振動。措施：要正確設(shè)計(jì)液壓泵的結(jié)構(gòu)參數(shù)和泵的吸油管路，盡量避免油道狹窄和急彎，防止產(chǎn)生低壓區(qū)；合理選用機(jī)件材料，增加機(jī)械強(qiáng)度、提高表面質(zhì)量、提高抗腐蝕能力。精密液壓機(jī)液壓系統(tǒng)動輔助元件：輔助元件包括油箱、濾油器、冷卻器、加熱器、蓄能器、油管及管接頭等。</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="精密液壓機(jī),液壓系統(tǒng)" src="https://tyunfile.71360.com/UploadFile/xuzhan1996/637368875359628906/1226352.png"></div><p style="text-indent:25px">HV、HS低溫液壓油規(guī)格：這是兩種不同檔次的液壓油，在GB 7631.2一2003中均屬寬溫度變化范圍下使用的液壓油。此二類油都有低的傾點(diǎn)，優(yōu)良的抗磨性、低溫流動性和低溫泵送性。HV、HS液壓油按基礎(chǔ)油分為礦油型與合成油型兩種，按40℃運(yùn)動粘度，HV油分為15、22、32、46、68、100六個牌號；HS油分為15、32、32、46四個牌號。用途：（1）HV低溫液壓油主要用于寒區(qū)或溫度變化范圍較大和工作條件苛刻的工程機(jī)械、引進(jìn)設(shè)備和車輛的中壓或高壓液壓系統(tǒng)。如數(shù)控機(jī)床、電纜井泵.以及船舶起重機(jī)、挖掘機(jī)、大型吊車等液壓系統(tǒng)。使用溫度在-30℃以上。（2）HS低溫液壓油主要用于嚴(yán)寒地區(qū)上述各種設(shè)備。使用溫度為-30℃以下。</p><p style="text-indent:25px">液壓系統(tǒng)注意事項(xiàng)：第1，從動力源——泵的方面來考慮，考慮到執(zhí)行器工作狀況的多樣化，有時(shí)系統(tǒng)需要大流量，低壓力；有時(shí)又需要小流量，高壓力。所以選擇限壓式變量泵為宜，因?yàn)檫@種類型的泵的流量隨系統(tǒng)壓力的變化而變化。當(dāng)系統(tǒng)壓力降低時(shí)，流量比較大，能滿足執(zhí)行器的快速行程。當(dāng)系統(tǒng)壓力提高時(shí)流量又相應(yīng)減小，能滿足執(zhí)行器的工作行程。這樣既能滿足執(zhí)行器的工作要求，又能使功率的消耗比較合理。第二，液壓油流經(jīng)各類液壓閥時(shí)不可避免的存在著壓力損失和流量損失，這一部分的能量損失在全部能量損失中占有較大的比重。因此，合理選擇液壓器，調(diào)整壓力閥的壓力也是降低功率損失的一個重要方面。流量閥按系統(tǒng)中流量調(diào)節(jié)范圍選取并保證其較小穩(wěn)定流量能滿足使用要求，壓力閥的壓力在滿足液壓設(shè)備正常工作的情況下，盡量取較低的壓力。液壓配管，管材選擇：應(yīng)根據(jù)系統(tǒng)壓力及使用場合來選擇管材。</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="精密液壓機(jī),液壓系統(tǒng)" src="https://tyunfile.71360.com/UploadFile/xuzhan1996/637368875373964844/3945255.png"></div><p style="text-indent:25px">生物降解液壓油是為了適應(yīng)環(huán)保要求，控制環(huán)境污染而開發(fā)的。主要有植物基礎(chǔ)油和合成醋，植物油由于具有天然的生物降解性能、優(yōu)良潤滑性能和粘溫性能，而且資源豐富，價(jià)格相對低廉，是環(huán)保潤滑油的主要發(fā)展方向。這種液壓油在我國沒有正式產(chǎn)品液壓油。但是國外就有不少，由植物油基礎(chǔ)油配方而成，可以較終降解。防止空氣進(jìn)入油中：油泵吸油口應(yīng)密封可靠，油箱中的吸油管不可離油面太近，系統(tǒng)的較高點(diǎn)應(yīng)設(shè)排氣閥，放出油中的游離空氣。油箱的合理設(shè)計(jì)：吸油管應(yīng)遠(yuǎn)離回油管，避免使用對油的氧化起催化作用的鉛、鋅、銅等材料，油箱內(nèi)要涂耐油的防銹漆，油箱中的冷卻器不能漏水。液壓系統(tǒng)由信號控制和液壓動力兩部分組成。精密液壓機(jī)</p><p style="text-indent:25px">液壓源含有液壓泵、電動機(jī)和液壓輔助元件。精密液壓機(jī)</p><p style="text-indent:25px">汽車及工程機(jī)械等的液壓系統(tǒng)使用液壓油作為工作介質(zhì)，這類液壓系統(tǒng)中油液的流速不大而壓力較高，故稱為靜壓傳動。液壓油質(zhì)量的優(yōu)劣將在很大程度上影響液壓系統(tǒng)的工作可靠性和使用壽命。通常對液壓油的質(zhì)量要求有如下幾點(diǎn)：1）適宜的粘度及良好的粘溫性能，以確保在工作溫度發(fā)生變化的條件下能準(zhǔn)確、靈敏地傳遞動力，并能保證液壓元件的正常潤滑。2）具有良好的防銹性及抗氧化安定性，在高溫高壓條件下不易氧化變質(zhì)，使用壽命長。3）具有良好的抗泡沫性，使油品在受機(jī)械不斷攪拌的工作條件下，產(chǎn)生的泡沫易于消失以使動力傳遞穩(wěn)定，避免液壓油的加速氧化。精密液壓機(jī)</p></p><br /><p>文章來源地址: http://www.cdcfah.com/cp/3127384.html</p></div></div></div></div></div><div id="wcy0y0o" class="page-right twoColRt"><div id="a0cy8gw" class="box01 margin10 clearfix"><h3><a href="http://www.cdcfah.com/cp/">猜你喜歡</a></h3><div id="2ec2sqw" class="recomPic likePro"><a href="http://www.cdcfah.com/cp/814588.html"><div><img src="http://tyunfile.71360.com/UpLoadFile/2019/11/1/14/637082168864691056_lgpj_5374157.jpg" alt="福建ZF配件哪家強(qiáng) 信息推薦自業(yè)物資供應(yīng)" class="vcenter" onerror="javascript:this.src='/static/new_net_01/images/nopic.jpg';"></div><p>福建ZF配件哪家強(qiáng) 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