原設計中，滾動(dong)(dong)導(dao)(dao)衛軸(zhou)承(cheng)(cheng)(cheng)(cheng)多數(shu)不帶密封(feng)(feng)。軋(ya)制過程(cheng)中，導(dao)(dao)輪(lun)直接夾持(chi)高(gao)溫軋(ya)件(jian)進行高(gao)速旋轉(zhuan)(zhuan)(zhuan)，使潤滑(hua)脂很快流失，另氧(yang)(yang)化(hua)鐵(tie)(tie)皮、冷卻水等(deng)侵(qin)入(ru)軸(zhou)承(cheng)(cheng)(cheng)(cheng)內部(bu)，使滾動(dong)(dong)體產(chan)生滑(hua)動(dong)(dong)摩擦，產(chan)熱大而燒壞軸(zhou)承(cheng)(cheng)(cheng)(cheng)，進而影響(xiang)了導(dao)(dao)輪(lun)使用(yong)壽命。經詳細分(fen)析導(dao)(dao)輪(lun)、軸(zhou)承(cheng)(cheng)(cheng)(cheng)工作(zuo)狀態(tai)并考(kao)慮軸(zhou)承(cheng)(cheng)(cheng)(cheng)外(wai)(wai)圈(quan)尺寸，設計出三種防(fang)塵蓋(gai)(gai)用(yong)于(yu)滾動(dong)(dong)導(dao)(dao)衛。防(fang)塵蓋(gai)(gai)外(wai)(wai)徑(jing)(jing)(jing)小(xiao)于(yu)軸(zhou)承(cheng)(cheng)(cheng)(cheng)外(wai)(wai)圈(quan)外(wai)(wai)徑(jing)(jing)(jing)1mm，內徑(jing)(jing)(jing)略大于(yu)導(dao)(dao)輪(lun)軸(zhou)直徑(jing)(jing)(jing)。導(dao)(dao)輪(lun)旋轉(zhuan)(zhuan)(zhuan)過程(cheng)中，防(fang)塵蓋(gai)(gai)外(wai)(wai)沿(yan)壓i軸(zhou)承(cheng)(cheng)(cheng)(cheng)外(wai)(wai)圈(quan)上，隨導(dao)(dao)輪(lun)一起旋轉(zhuan)(zhuan)(zhuan)，既(ji)能(neng)(neng)封(feng)(feng)住軸(zhou)承(cheng)(cheng)(cheng)(cheng)內部(bu)潤滑(hua)脂不向外(wai)(wai)溢出，保證潤滑(hua)效果；又(you)能(neng)(neng)防(fang)止(zhi)外(wai)(wai)部(bu)氧(yang)(yang)化(hua)鐵(tie)(tie)皮等(deng)雜物(wu)落入(ru)軸(zhou)承(cheng)(cheng)(cheng)(cheng)內部(bu)。

由于導(dao)(dao)衛(wei)座(zuo)(zuo)所處的環(huan)境(jing)較惡劣，受冷卻水(shui)侵蝕、軋件頭尾沖擊、氧化(hua)鐵皮垢結(jie)、堆(dui)鋼破壞等影響，因此必須(xu)可(ke)靠固定(ding)(ding)，操(cao)作中(zhong)(zhong)應經常進行點檢，發(fa)現問(wen)題及時更換，軋鋼現場調(diao)試指導(dao)(dao)服務(wu)，防止事故發(fa)生(sheng)。   導(dao)(dao)衛(wei)總成(cheng)(cheng)上線(xian)后，依(yi)(yi)靠導(dao)(dao)衛(wei)座(zuo)(zuo)可(ke)完(wan)(wan)成(cheng)(cheng)導(dao)(dao)衛(wei)與孔型(xing)的對中(zhong)(zhong)對正(zheng)。導(dao)(dao)衛(wei)座(zuo)(zuo)的調(diao)整(zheng)(zheng)(zheng)(zheng)(zheng)十分關鍵，2#、4#、6#、8#、10#軋機導(dao)(dao)衛(wei)座(zuo)(zuo)設有(you)水(shui)平(ping)方(fang)(fang)向(xiang)調(diao)整(zheng)(zheng)(zheng)(zheng)(zheng)裝置(zhi)，垂直方(fang)(fang)向(xiang)可(ke)在(zai)耐磨塊下(xia)加調(diao)整(zheng)(zheng)(zheng)(zheng)(zheng)墊板來調(diao)整(zheng)(zheng)(zheng)(zheng)(zheng)對正(zheng)軋制線(xian)。12#、14#軋機導(dao)(dao)衛(wei)座(zuo)(zuo)依(yi)(yi)靠簡易調(diao)整(zheng)(zheng)(zheng)(zheng)(zheng)裝置(zhi)在(zai)線(xian)完(wan)(wan)成(cheng)(cheng)水(shui)平(ping)方(fang)(fang)向(xiang)、垂直方(fang)(fang)向(xiang)對中(zhong)(zhong)。預精軋后的導(dao)(dao)衛(wei)座(zuo)(zuo)徑向(xiang)固定(ding)(ding)應精密(mi)安裝，軸向(xiang)固定(ding)(ding)可(ke)使用2．5倍的便(bian)攜式光學對中(zhong)(zhong)儀，在(zai)輥環(huan)安裝完(wan)(wan)成(cheng)(cheng)

后進行軸向(xiang)的調整(zheng)和對中。

精軋進口滾(gun)(gun)動(dong)導(dao)(dao)衛(wei)的(de)軸承必須(xu)(xu)(xu)使(shi)用進口軸承，且(qie)每次更換(huan)或(huo)修復導(dao)(dao)衛(wei)時必須(xu)(xu)(xu)更換(huan)新軸承，進口導(dao)(dao)輥(gun)可(ke)視磨(mo)損情況來(lai)更換(huan). 50 5 滾(gun)(gun)動(dong)導(dao)(dao)衛(wei)供油(you)和供水(shui)的(de)通(tong)道應用壓縮空氣(qi)吹(chui)掃(sao)，確(que)保通(tong)道暢通(tong)無阻(zu).  30 6  切(qie)分導(dao)(dao)衛(wei)需要注意上(shang)下切(qie)分輪(lun)以”0”間(jian)隙來(lai)調(diao)(diao)節，保證上(shang)下切(qie)分輪(lun)能同時轉動(dong)，另外(wai)需確(que)保切(qie)分鼻錐中心(xin)線(xian)、切(qie)分輪(lun)中 心(xin)線(xian)以及軋制中心(xin)線(xian)在一條線(xian)上(shang)重和  50 7  切(qie)分軋制時入口導(dao)(dao)輥(gun)的(de)調(diao)(diao)整必須(xu)(xu)(xu)使(shi)用樣棒調(diao)(diao)試，要求(qiu)樣棒能在導(dao)(dao)輥(gun)間(jian)順利通(tong)過，松緊(jin)適度，導(dao)(dao)輥(gun)間(jian)歇調(diao)(diao)好后，要擰緊(jin) 鄂板的(de)調(diao)(diao)整螺(luo)絲(si)和壓蓋螺(luo)絲(si).