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主頁 > 齒輪箱的應用 > 直流電機軸承過緊的原因

直流電機軸承過緊的原因

2021-2-25 04:52

直流減速電機的軸承不可以過緊?各位商友們知道嗎?那么造成直流減速電機軸承過緊的原因是什么呢,今天兆威機電就給大家簡單分析一下。一起來看看吧!

  操作人員怕車廢端蓋軸承室,直流電機修理時要使軸承外圈與端蓋配合公差合適。偏重采用公差范圍的下限,不愿車到上限,這樣就使軸承室直徑偏小,增大了與軸承外圈配合的過盈量;另外,修理工人對于適當減少配合公差的大過盈量對直流減速電機的軸承減少噪聲有好處的認識不夠,比方在拆微型直流減速電機軸承時發現軸承外圈與端蓋配合好拆,就誤認為軸承配合過松,說軸承“跳井了于是墊銅皮、打沖孔眼,甚至更換端蓋,或更換軸承、擴大外圈直徑來解決這個問題,常見的方法是將端蓋軸承室再擴大,然后鑲套,使軸承與端蓋軸承室配合緊密,其結果造成直流電機修后軸承噪聲增加,軸承發熱等不良現象。由于配合過緊,軸承發熱,使潤滑脂被擠出去,軸承跑道(軸承工作面)局部無潤滑油,軸承因過熱而產生軸承故障。

直流減速電機
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