VHR540CT-250EG
VHR540CT-250J
主要產(chǎn)品：日本東方馬達(dá)，泰映TROY減速電機(jī)，韓國(guó)SPG小功率馬達(dá)，
韓國(guó)DKM減速電機(jī),CPG晟邦減速電機(jī) ...
銷售熱線: 180-6090-9625/0592-6013512
聯(lián)系人：蘭工
QQ: 869740621
減速機(jī)技術(shù)資料：
減速機(jī)轉(zhuǎn)軸是減速機(jī)的重要零件之一，它是傳遞扭矩、帶動(dòng)機(jī)械負(fù)載的主要部件。減速機(jī)軸必須有足夠的機(jī)械強(qiáng)度和剛度，才能完成減速機(jī)功率的傳遞，使減速機(jī)運(yùn)行時(shí)不發(fā)生振動(dòng)或定子、轉(zhuǎn)子相擦。
軸常見的損壞現(xiàn)象有：轉(zhuǎn)軸彎曲、軸頸磨損、軸裂紋和軸斷裂等。其損壞原因，除制造質(zhì)量本身有問(wèn)題外，大多數(shù)是使用不當(dāng)造成的。例如，拆卸皮帶輪時(shí)，不用專用工具而硬敲，再加上敲打時(shí)受力不當(dāng)，極易引起軸的損壞。
1．轉(zhuǎn)軸彎曲的修理轉(zhuǎn)軸彎曲會(huì)造成減速機(jī)氣隙不均，產(chǎn)生振動(dòng)和噪聲。
若彎曲不大，為了消除彎曲對(duì)轉(zhuǎn)子鐵芯段的影響，可以磨光軸頸、滑環(huán)和換向器等。在小型異步減速機(jī)中，也可以磨光轉(zhuǎn)子的鐵芯段，但轉(zhuǎn)子與定子間增大的間隙值不應(yīng)超過(guò)正常間隙的10％。
如果軸的彎曲值很大，以致不能用加工軸頸和軸上零件的方法來(lái)消除，可在壓力機(jī)上矯正，或用電焊機(jī)在彎曲處表面均勻堆焊一層，然后上車床，以轉(zhuǎn)子外圓為基準(zhǔn)找出中心，車成要求尺寸，并用百分表檢查。
用敲打法矯正用冷態(tài)直軸法矯正轉(zhuǎn)軸的彎曲示意圖
2．軸頸磨損的修理軸頸磨損由于軸承內(nèi)圈與軸頸的配合過(guò)盈過(guò)小，在運(yùn)行中發(fā)生軸與內(nèi)圈相對(duì)運(yùn)動(dòng)，使軸頸磨損而松動(dòng)(即走內(nèi)圓)。這時(shí)，必須將軸頸修補(bǔ)到原來(lái)尺寸。常用的修補(bǔ)方法有下列幾種：
方法～：噴鍍或刷鍍。利用專門的設(shè)備將金屬鍍?cè)谀p的軸頸上，再磨削到需要的直徑。此法適用于磨損深度不超過(guò)0．2毫米的情況。
方法二：補(bǔ)焊。將轉(zhuǎn)軸放在帶滾輪的支架上，用中碳鋼焊條進(jìn)行手工電弧焊，從一端開始，一圈一圈地補(bǔ)焊，邊焊邊轉(zhuǎn)動(dòng)轉(zhuǎn)子，直至將軸頸全部補(bǔ)焊完畢。冷卻后，放到車床上加工到所需尺寸。加工時(shí)，注意校正兩軸頸與轉(zhuǎn)子外圓的同軸度。
方法三：鑲套。當(dāng)軸頸磨損較大或局部燒損發(fā)藍(lán)退火時(shí)，可將軸頸車圓上后，放在車床上加工套的外圓。
3．軸裂紋或斷裂的修理對(duì)于出現(xiàn)裂紋的軸，若其裂紋深度不超過(guò)軸頸的10％～15％、長(zhǎng)度不超過(guò)軸長(zhǎng)的10％(對(duì)縱向而言)或不超過(guò)圓周長(zhǎng)的10％(對(duì)橫向而言)，可用堆焊法進(jìn)行補(bǔ)救。
對(duì)于裂紋大或斷裂的軸，必須更換新軸，換軸時(shí)，小型減速機(jī)一般用35號(hào)鋼或45號(hào)鋼。換軸一時(shí)有困難，在不影響軸質(zhì)量的前提下，也可采用補(bǔ)接法
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