HPE8460A

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描述

HPE8460A

新電刷的研磨
直流電機(jī)或者轉(zhuǎn)子是繞線式電機(jī)更新電刷,當(dāng)刷握與換向器表面垂直時(shí),研磨電刷的方法是:在換向器的表面上鋪一張砂紙,手握相同型號(hào)的新電刷沿?fù)Q向器軸向往復(fù)摩擦,電刷的被磨面很快會(huì)被磨出與換向器表面相吻合的弧面來。先用較粗的砂紙,后用細(xì)砂紙。研磨時(shí),手握電刷要正,來回運(yùn)動(dòng)都要沿?fù)Q向器的軸線方向,不能偏斜,往復(fù)行程不要太長。要注意防止電刷粉進(jìn)入電樞及換向器溝槽內(nèi)。磨好后,將電刷裝入刷握,起動(dòng)電機(jī)空載運(yùn)行幾分鐘后,取出各電刷檢查,接觸面一般要占總面積的80%以上才行,否則,要重新研磨直到合格為止。
當(dāng)電機(jī)的刷握與換向器表面不垂直時(shí),宜采用下述方法:將砂紙鋪在平面上,手握電刷按刷握的傾斜角度磨出一個(gè)斜面。然后將電刷裝進(jìn)刷握,用手轉(zhuǎn)動(dòng)電機(jī)轉(zhuǎn)子,這樣就會(huì)在電刷的斜面上磨出光亮點(diǎn),然后用砂紙打磨光亮點(diǎn)(也可用刀子刮)。打磨后,再將電刷裝進(jìn)刷握,用手轉(zhuǎn)動(dòng)電機(jī)轉(zhuǎn)子,同樣又會(huì)被磨出亮斑,面積比第一次大。如此進(jìn)行幾次,電刷的接觸面會(huì)愈來愈大,逐漸形成弧形。打磨亮斑時(shí),每次不要打磨得太多,特別是到最后一次,一定要小心,只要用細(xì)砂紙稍微擦一下即可。如擦多了,接觸面反而會(huì)變小。經(jīng)實(shí)踐證明用這種方法研磨傾斜的電刷,時(shí)間快,效果好。振動(dòng)電機(jī)在使用中經(jīng)常會(huì)遇到各種各樣的問題,總結(jié)以往的很多問題后發(fā)現(xiàn),在這些問題中,由于使用者對(duì)振動(dòng)電機(jī)及振動(dòng)篩的安裝和使用的認(rèn)識(shí)不足而造成的故障占很大一部分。這使我們感到,如果這些朋友更多的了解振動(dòng)電機(jī)的使用和維修知識(shí),不但能更好的創(chuàng)造價(jià)值,提升生產(chǎn)效率,而且可以更好的解除供需之間的各種糾紛。今天就其中的一個(gè)小問題,簡單的進(jìn)行闡述。

前不久,一朋友的振動(dòng)電機(jī)出現(xiàn)故障,原本銷售公司要求他把該振動(dòng)電機(jī)發(fā)回工廠,進(jìn)行更換,但是他覺得是小問題,又怕耽誤時(shí)間,就安排人員到當(dāng)?shù)仄胀姍C(jī)維修門市部進(jìn)行維修。門市部維修的師傅說,這個(gè)振動(dòng)電機(jī),軸非常的松動(dòng),能來回左右串動(dòng),會(huì)產(chǎn)生很大事故隱患等等。呵呵,其實(shí)我們大家都知道,這個(gè)維修師傅是把振動(dòng)電機(jī)和普通電機(jī)相比較了。
因?yàn)樵谡駝?dòng)電機(jī)的生產(chǎn)時(shí),軸和軸承的配合間隙和普通電機(jī)是不一樣的,普通電機(jī)的軸和軸承之間一定要緊密配合,而振動(dòng)電機(jī)中軸和軸承的配合間隙是滑動(dòng)配合,中間存在0.01—0.015mm的間隙,維修時(shí)軸自然會(huì)產(chǎn)生左右串動(dòng)。其實(shí)這個(gè)間隙配合是有著它的重要作用的。
振動(dòng)電機(jī)是靠自身的高頻振動(dòng),來產(chǎn)生振動(dòng)力的,所以在其工作的時(shí)間,電機(jī)自身會(huì)有很高的溫升,而正是由于這個(gè)配合間隙的存在,在溫升后振動(dòng)電機(jī)的軸會(huì)產(chǎn)生膨脹,膨脹后的軸正好和軸承達(dá)到緊密配合,才能達(dá)到正常的工作狀態(tài)。如果沒有這個(gè)0.01—0.015mm的間隙,那么振動(dòng)電機(jī)在工作升溫達(dá)到一定溫度后會(huì)產(chǎn)生一系列問題,甚至?xí)V惯\(yùn)轉(zhuǎn)或燒毀振動(dòng)電機(jī)。所以在振動(dòng)電機(jī)的維修中要注意這個(gè)問題。

產(chǎn)品承諾:
保?證?全新原裝進(jìn)口,
保?證?安全準(zhǔn)時(shí)發(fā)貨,
保?證售后服務(wù)質(zhì)量,
優(yōu)勢價(jià)格,大量現(xiàn)貨。

主營DCS系統(tǒng)配件
機(jī)器人系統(tǒng)配件
大型伺服系統(tǒng)配件
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Triconex?Siemens?Yaskawa?ABB?GE?Ovation?AB?Foxboro?Motorola?Schneider?XYCOM?KUKA
? 專業(yè)銷售進(jìn)口DCS? PLC系統(tǒng)備件模塊 15天包退換 一年質(zhì)保 大量現(xiàn)貨? 國內(nèi)實(shí)力庫存商家

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專業(yè)銷售進(jìn)口DCS? PLC系統(tǒng)備件模塊

PLC模塊,可編程控制器,CPU模塊,IO模塊,AI模塊,通訊模塊。AB/施耐德/ABB/GE/本特利/西屋/英維斯/霍尼韋爾/黑馬/FU克斯波羅

15天包退換 一年質(zhì)保 大量現(xiàn)貨? 國內(nèi)實(shí)力庫存商家


選擇深圳長欣,選擇放心,售后無憂大量現(xiàn)貨,當(dāng)天順豐發(fā)貨!
主營:本特利,英維思,伍德沃德,福克斯波羅、西屋、瑞恩、施耐德莫迪康、ABB、AB、西門子、摩托羅拉、GE發(fā)那科、安川、博世力士樂,ACSO,力士樂等各大品牌的DCS系統(tǒng)配件,機(jī)器人系統(tǒng)配件,大型伺服系統(tǒng)備件。

先介紹幾點(diǎn)經(jīng)驗(yàn)。
1、先通讀一遍“系統(tǒng)手冊(cè)”(不管能不能看懂,先了解個(gè)大概,以便學(xué)習(xí)編程時(shí)查找);
2、由位控邏輯入手,逐漸增加定時(shí)、計(jì)數(shù)等條件,把或、與、非關(guān)系理順;
3、進(jìn)而練習(xí)整數(shù)運(yùn)算、實(shí)數(shù)運(yùn)算、類型轉(zhuǎn)換;
4、量程轉(zhuǎn)換、PID調(diào)節(jié)回路的建立及P、I、D參數(shù)的理解(最好是有個(gè)物理回路驗(yàn)證,比如變頻器+電機(jī)+測速傳感器);
5、循環(huán)、順序、跳轉(zhuǎn)等程序控制(盡量避免跳轉(zhuǎn),非跳不可時(shí)也是跳的越近越好);
6、中斷、通訊、位置控制....

本人以ABB工業(yè)機(jī)器人配件DSQC系列和Motorola MVME系列,GE 卡件 模塊 驅(qū)動(dòng)器系列為主攻。各位電工朋友可根據(jù)自己的條件選擇適合自己的PLC品牌,由于PLC的基本框架大同小異,學(xué)會(huì)一種至于其它的學(xué)習(xí)起來也就簡單了。