石墨軸承套怎么安裝
石(shi)墨軸(zhou)(zhou)承套(tao)(tao)的安(an)裝需要結合(he)其特性(xing)(如(ru)自潤(run)(run)滑(hua)、脆性(xing)、尺寸精度要求高)進(jin)行(xing)規范操作,以確保密封(feng)性(xing)、運(yun)轉(zhuan)穩(wen)定(ding)性(xing)和使用(yong)(yong)壽命。安(an)裝前準備(bei):檢(jian)查(cha)部件,確認(ren)軸(zhou)(zhou)承套(tao)(tao)內(nei)孔、外徑及軸(zhou)(zhou)的尺寸符合(he)設(she)(she)計公差,避(bi)免過盈或(huo)間隙過大。檢(jian)查(cha)軸(zhou)(zhou)承套(tao)(tao)表面是(shi)否有裂紋(wen)、缺(que)口或(huo)毛刺,必要時用(yong)(yong)油石(shi)或(huo)砂紙輕(qing)輕(qing)打(da)磨。清潔所有部件(軸(zhou)(zhou)承套(tao)(tao)、軸(zhou)(zhou)、軸(zhou)(zhou)承座(zuo)),去除(chu)油污、灰(hui)塵和金屬(shu)屑(xie),防(fang)止雜質進(jin)入影(ying)響潤(run)(run)滑(hua)。選擇安(an)裝工(gong)具(ju)。準備(bei)專用(yong)(yong)壓套(tao)(tao)、液壓壓機或(huo)加熱(re)設(she)(she)備(bei)(如(ru)感應加熱(re)器),避(bi)免直接敲擊導致石(shi)墨破(po)裂。準備(bei)潤(run)(run)滑(hua)劑(如(ru)專用(yong)(yong)石(shi)墨潤(run)(run)滑(hua)脂或(huo)酒(jiu)精),用(yong)(yong)于減少摩(mo)擦和輔助定(ding)位。確定(ding)安(an)裝方(fang)向。根據軸(zhou)(zhou)承套(tao)(tao)設(she)(she)計(如(ru)止動槽、密封(feng)唇方(fang)向)確認(ren)安(an)裝方(fang)向,避(bi)免裝反。

方法1:冷壓(ya)(ya)安裝(zhuang)(zhuang)(適用(yong)于過盈量較(jiao)小的情況)涂抹潤滑劑(ji):在軸(zhou)承(cheng)套(tao)(tao)(tao)內孔和(he)軸(zhou)表面(mian)均勻涂抹石墨潤滑脂或(huo)酒精,減少摩擦。定位壓(ya)(ya)套(tao)(tao)(tao):將壓(ya)(ya)套(tao)(tao)(tao)(直徑略小于軸(zhou)承(cheng)套(tao)(tao)(tao)外徑)套(tao)(tao)(tao)在軸(zhou)上,確(que)保壓(ya)(ya)套(tao)(tao)(tao)端(duan)面(mian)與軸(zhou)承(cheng)套(tao)(tao)(tao)端(duan)面(mian)對(dui)齊。均勻施壓(ya)(ya):使用(yong)液(ye)壓(ya)(ya)壓(ya)(ya)機緩慢施加壓(ya)(ya)力,壓(ya)(ya)力方向需與軸(zhou)中心線一致,避免偏(pian)斜。監控(kong)壓(ya)(ya)力:根(gen)據軸(zhou)承(cheng)套(tao)(tao)(tao)材質和(he)尺寸,控(kong)制(zhi)壓(ya)(ya)力在安全范(fan)圍內(通常參(can)考制(zhi)造商(shang)提供的壓(ya)(ya)力曲線)。檢(jian)查間(jian)隙:安裝(zhuang)(zhuang)后用(yong)塞尺檢(jian)查軸(zhou)承(cheng)套(tao)(tao)(tao)與軸(zhou)承(cheng)座之(zhi)間(jian)的間(jian)隙,確(que)保符合設計(ji)要(yao)求(qiu)。

方法2:熱(re)(re)裝(zhuang)(適用于過(guo)盈量(liang)較大的情況)加(jia)熱(re)(re)軸(zhou)(zhou)承(cheng)(cheng)(cheng)座:使(shi)用感應加(jia)熱(re)(re)器或油浴加(jia)熱(re)(re)軸(zhou)(zhou)承(cheng)(cheng)(cheng)座至(zhi)指(zhi)定(ding)溫(wen)度(du)(du)(通常比(bi)環境溫(wen)度(du)(du)高80-100℃,具體參考材料膨(peng)脹系(xi)數)避免(mian)局(ju)部過(guo)熱(re)(re)導致變形,可用溫(wen)度(du)(du)計實時監測。快速安(an)裝(zhuang):加(jia)熱(re)(re)后立即將軸(zhou)(zhou)承(cheng)(cheng)(cheng)套(tao)(tao)(tao)套(tao)(tao)(tao)入軸(zhou)(zhou)上,利用熱(re)(re)膨(peng)脹產(chan)生(sheng)的間隙快速定(ding)位。安(an)裝(zhuang)過(guo)程中(zhong)(zhong)保持軸(zhou)(zhou)承(cheng)(cheng)(cheng)套(tao)(tao)(tao)與軸(zhou)(zhou)同心,避免(mian)傾斜。冷卻(que)(que)固定(ding):自然冷卻(que)(que)至(zhi)室溫(wen),軸(zhou)(zhou)承(cheng)(cheng)(cheng)座收縮(suo)后與軸(zhou)(zhou)承(cheng)(cheng)(cheng)套(tao)(tao)(tao)形成緊(jin)密配合(he)。冷卻(que)(que)過(guo)程中(zhong)(zhong)避免(mian)移(yi)動或敲擊部件。