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      起動機軸承(俗稱銅套),在正常使用中,常因其磨損過甚而出現軸頸與銅套松曠,最終影響起動機的使用性能。起動機銅套易磨損的主要原因有兩個方面:一是承受的載荷較大,這是不可改變的現實;二是潤滑不良,這卻是可以改善的。起動機軸承(俗稱銅套),在正常使用中,常因其磨損過甚而出現軸頸與銅套松曠,最終影響起動機的使用性能。起動機銅套易磨損的主要原因有兩個方面:一是承受的載荷較大,這是不可改變的現實;二是潤滑不良,這卻是可以改善的。起動機銅套與電樞軸軸頸的潤滑大都是在分解檢修時,涂些潤滑脂,起動機在正常使用中一般無法進行不解體潤滑。起動機在工作時,軸頸外圓面與銅套內四面相接觸,將部分潤滑脂擠出了摩擦表面,使潤滑脂的消耗加快,造成起動機工作時軸頸與銅套的干摩擦,加劇了兩者的磨損。為此,試驗在銅套內圓面上車削兩道深約0.8mm,寬約1.5mm的油槽,在起動機檢修時將槽內涂滿潤滑脂后裝復。經運行檢驗,既達到了長效潤滑的目的,也減援了軸頸與銅套的磨損。
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