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09:17:33</p><p><span id="click" >瀏覽次數(shù)：5次</span></p><a rel="nofollow" class="button">聯(lián)系我們</a></div></div><div id="qz3zbsm" class="rightbox"><h3>公司基本資料信息</h3><p style="border:0;"><a rel="nofollow">無(wú)錫東英電子有限公司</a></p><p><span>聯(lián)系人：</span>朱淇華</p><p><span>郵箱: </span>wxdydz@163.com</p><p><span>電話: </span>13921179070</p><p><span>傳真: </span>0510_</p><p><span>網(wǎng)址: </span></p><p><span>手機(jī): </span>0510-83785478</p><p><span>地址: </span>江蘇省無(wú)錫市錫山區(qū)錫北鎮(zhèn)新壩村</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="xmyvxeg" class="page-proshow02"><p class="title">詳細(xì)說(shuō)明</p><div id="8tac29y" class="box"><p><p> 包括以下步驟：步驟1：根據(jù)受力分析模型選擇起吊機(jī)型號(hào)；步驟2：根據(jù)槽鋼的平衡方程選擇槽鋼支撐點(diǎn)位置，重慶電子線圈工藝。作為推薦，步驟1中所述根據(jù)受力分析模型選擇起吊機(jī)型號(hào)具體為：式中：q為槽鋼每米質(zhì)量kg/m，l為槽鋼長(zhǎng)度m，重慶電子線圈工藝，m為變壓器質(zhì)量kg，g為重力加速度，f1、f2為起降臺(tái)支撐點(diǎn)作用力，根據(jù)f1、f2的大小選擇起吊機(jī)型號(hào)；作為推薦，步驟2中所述根據(jù)槽鋼的平衡方程選擇槽鋼支撐點(diǎn)位置具體為：根據(jù)實(shí)際情況選擇槽鋼的長(zhǎng)度，然后通過(guò)以下方法選擇槽鋼支撐點(diǎn)；起吊變壓器過(guò)程中，槽鋼的平衡方程如下：其中，f1、f2為起降臺(tái)支撐點(diǎn)作用力，q為單位每米質(zhì)量，l為槽鋼長(zhǎng)度，m為變壓器質(zhì)量，g為重力加速度，x為支撐點(diǎn)到槽鋼末端距離；方程中x為變量，其他參數(shù)根據(jù)槽鋼型號(hào)和變壓器規(guī)格確定，重慶電子線圈工藝，為使兩起降臺(tái)受力均衡，使抬升過(guò)程平穩(wěn)，起吊變壓器時(shí)支撐點(diǎn)及變壓器位置采取對(duì)稱布置，得到支撐點(diǎn)作用力如下：支撐點(diǎn)處剪力如下：變壓器懸掛點(diǎn)彎矩如下：槽鋼所受應(yīng)力應(yīng)滿足許用值，如下：其中，h為槽鋼腹板高度，d為槽鋼腹板寬度，wz為槽鋼抗彎截面模量，[τ]為槽鋼許用切應(yīng)力，[σ]為槽鋼許用正應(yīng)力；由上式得，支撐點(diǎn)到槽鋼末端距離x適宜的范圍為：由上述式子分析可得。</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="重慶電子線圈工藝" src="https://tyunfile.71360.com/WaterMark/UploadFile/dongying/637218591377119141/1119879.jpg"></div><p> 二極管d和第三電阻r3的公共端b作為診斷輸入端連接cpld控制器向cpld控制器輸入診斷狀態(tài)位，cpld控制器的反饋輸出端還連接至mcu并輸出反饋狀態(tài)位，在本申請(qǐng)中，cpld控制器的反饋輸出端包括斷路反饋輸出端c2以及短路反饋輸出端c3，斷路反饋輸出端c2用于輸出斷路反饋狀態(tài)位，短路反饋輸出端c3用于輸出短路反饋狀態(tài)位。mcu的狀態(tài)清零端c4還連接cpld控制器，所述狀態(tài)清零端c4用于輸出清零信號(hào)。在圖1所示電路中，電阻r1接+24v電壓組成上拉結(jié)構(gòu)。二極管d的負(fù)極接+，由于二極管d和第三電阻r3的公共端b端要接入cpld控制器，因此這個(gè)結(jié)構(gòu)可以起到限壓的作用。由于b端接入cpld控制器，因此cpld控制器可以檢測(cè)到b端在不同情況下的邏輯狀態(tài)，同時(shí)cpld控制器也將進(jìn)行資源配置，以便準(zhǔn)確的依據(jù)b端的邏輯狀態(tài)對(duì)驅(qū)動(dòng)輸出端c1和反饋輸出端進(jìn)行實(shí)時(shí)的鎖定及調(diào)整。在本申請(qǐng)中：驅(qū)動(dòng)使能信號(hào)是mcu發(fā)出的驅(qū)動(dòng)車用電磁閥t1工作的總開關(guān)信號(hào)；斷路反饋狀態(tài)位是cpld控制器輸出的指示車用電磁閥t1斷路的信號(hào)，該信號(hào)在被mcu讀取之前一直被鎖定，直到被清零信號(hào)清理。短路反饋狀態(tài)位是cpld控制器輸出的指示車用電磁閥t1短路的信號(hào)，該信號(hào)在被mcu讀取之前一直被鎖定，直到被清零信號(hào)清理。</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="重慶電子線圈工藝" src="https://tyunfile.71360.com/WaterMark/UploadFile/dongying/637218867234013672/2881679.png"></div><p> 本發(fā)明屬于變壓器及其相關(guān)設(shè)備的安裝領(lǐng)域，具體地涉一種變壓器的起吊方法。背景技術(shù)：隨著電力事業(yè)的發(fā)展，變壓器大量進(jìn)入居民區(qū)和商業(yè)區(qū)。長(zhǎng)期處于噪聲環(huán)境中，輕則影響人們的生活質(zhì)量，重則對(duì)人的聽力造成長(zhǎng)久損傷，因此采取有效方法降低變壓器造成的噪聲意義重大。目前減小變壓器噪聲的方法主要有如下幾種：減小磁致伸縮；提高硅鋼片的疊裝質(zhì)量；控制鐵心的固有頻率；控制冷卻系統(tǒng)的噪聲；安裝橡膠減震板；安裝消音油箱；設(shè)置隔音墻隔音室等。前四種方法從振動(dòng)源考慮，通過(guò)改變鐵心的特性減小噪聲，不適用于變壓器已經(jīng)設(shè)計(jì)完成的場(chǎng)合。后三種方法是通過(guò)安裝減震設(shè)施以及阻斷噪聲傳播途徑等手段減小變壓器噪聲對(duì)人們的影響。對(duì)于變壓器已經(jīng)安裝完成的場(chǎng)合，只能通過(guò)外界干涉進(jìn)行減震降噪。在變壓器底部安裝彈簧減震器是一種有效減弱變壓器震動(dòng)的途徑。在變壓器減震器的安裝過(guò)程中，變壓器的起吊環(huán)節(jié)**為困難。但目前，尚未存在一套科學(xué)的變壓器起吊體系。綜上所述，目前針對(duì)變壓器減震器的安裝過(guò)程，急需一種簡(jiǎn)單方便的安裝變壓器起吊方法。技術(shù)實(shí)現(xiàn)要素：為了解決上述技術(shù)問(wèn)題，本發(fā)明提出了一種變壓器的起吊方法，其特征在于。</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="重慶電子線圈工藝" src="https://tyunfile.71360.com/WaterMark/UploadFile/dongying/637218867231035156/7406560.png"></div></p><br /><p>文章來(lái)源地址: http://www.cdcfah.com/cp/143155.html</p></div></div></div></div></div><div id="e7gxzr3" class="page-right twoColRt"><div id="ktaxjgc" class="box01 margin10 clearfix"><h3><a href="http://www.cdcfah.com/cp/">猜你喜歡</a></h3><div id="x77yfho" 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) 信息推薦自業(yè)物資供應(yīng)</p></a></div><div id="qfx23bx" class="recomPic likePro"><a href="http://www.cdcfah.com/cp/846569.html"><div><img src="https://tyunfile.71360.com/WaterMark/UploadFile/nbzxsw/637298235378037109/764794.png" alt="寧波寧海直接考A2有幾個(gè)科目真誠(chéng)推薦寧波助學(xué)商務(wù)信息咨詢供應(yīng)" class="vcenter" 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