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聯系客服,馬上詢價
發布時(shi)間:2021-12-16 11:32:51 人氣:102273 來源:
常用的密封型式主要有填料密封、木魚鎮機械密封等,填(tian)料密(mi)封(feng)(feng)(feng)。填(tian)料改集式(shi)密(mi)封(feng)(feng)(feng)是一種較為原始的接觸式(shi)密(mi)封(feng)(feng)(feng),具有(you)結構簡單(dan)、成本低(di)、更換簡便等優點,由于這(zhe)些優點,因而(er)在石(shi)油工(gong)(gong)業(ye)、化學工(gong)(gong)業(ye)、造紙工(gong)(gong)業(ye)、食(shi)品工(gong)(gong)業(ye)以及其它工(gong)(gong)業(ye)的動(dong)密(mi)封(feng)(feng)(feng)中有(you)著非常(chang)廣泛的應用。
填料改集式密封屬于較精密部件,安裝時切勿狠敲猛碰,由于其密封性能和使用壽命除了和木魚鎮機械密封的本(ben)身(shen)性能(neng)有關(guan)以(yi)外,和安(an)裝關(guan)系也十(shi)分密切,應按照下面(mian)的安(an)裝要領進行安(an)裝。
根據裝(zhuang)配圖(tu),確定(ding)旋轉(zhuan)部件的安裝(zhuang)位(wei)置(zhi),根據彈(dan)簧(huang)比壓計算(suan)出彈(dan)簧(huang)壓縮(suo)量(liang),要(yao)(yao)合(he)理進行調節。在(zai)軸或(huo)軸套(tao)(tao)上(shang)(shang)涂上(shang)(shang)潤滑油(you),依(yi)次裝(zhuang)入靜(jing)(jing)(jing)止部件及(ji)旋轉(zhuan)部件,要(yao)(yao)注(zhu)意不(bu)要(yao)(yao)損(sun)傷輔助密(mi)封(feng)(feng)圈(quan)和密(mi)封(feng)(feng)端面(mian),手(shou)推動環(huan)(huan)時(shi)應(ying)有浮(fu)動性。緊(jin)(jin)定(ding)螺釘(ding)要(yao)(yao)均勻上(shang)(shang)緊(jin)(jin),尤其對(dui)(dui)于經過(guo)硬化處理的軸套(tao)(tao),更應(ying)該注(zhu)意要(yao)(yao)上(shang)(shang)緊(jin)(jin),不(bu)要(yao)(yao)產(chan)生(sheng)偏斜。靜(jing)(jing)(jing)環(huan)(huan)裝(zhuang)入靜(jing)(jing)(jing)環(huan)(huan)壓蓋之(zhi)后,在(zai)壓緊(jin)(jin)靜(jing)(jing)(jing)環(huan)(huan)壓蓋時(shi),壓力(li)要(yao)(yao)均勻,保證轉(zhuan)軸對(dui)(dui)密(mi)封(feng)(feng)端面(mian)的垂直(zhi)度要(yao)(yao)求。總裝(zhuang)后,檢查(cha)輔助裝(zhuang)置(zhi)是(shi)否正常,避免干(gan)摩(mo)擦,用(yong)手(shou)盤車(che)時(shi),觀察有無不(bu)正常現象,然(ran)后靜(jing)(jing)(jing)壓試驗,在(zai)跑合(he)一(yi)段(duan)時(shi)間(jian)以后再交付使用(yong)。
回(hui)轉軸(zhou)(zhou)不得(de)有彎曲、軸(zhou)(zhou)徑(jing)精度(du)(du)(du)及(ji)軸(zhou)(zhou)套(tao)配(pei)合公差和軸(zhou)(zhou)的(de)振動(dong)要(yao)(yao)(yao)(yao)(yao)(yao)符(fu)合技術(shu)(shu)要(yao)(yao)(yao)(yao)(yao)(yao)求(qiu)(qiu)。軸(zhou)(zhou)承精度(du)(du)(du)及(ji)安裝質量要(yao)(yao)(yao)(yao)(yao)(yao)高,軸(zhou)(zhou)承與軸(zhou)(zhou)承孔(kong)的(de)配(pei)合精度(du)(du)(du)要(yao)(yao)(yao)(yao)(yao)(yao)符(fu)合技術(shu)(shu)要(yao)(yao)(yao)(yao)(yao)(yao)求(qiu)(qiu)。軸(zhou)(zhou)和軸(zhou)(zhou)套(tao)的(de)加工精度(du)(du)(du)要(yao)(yao)(yao)(yao)(yao)(yao)符(fu)合圖紙要(yao)(yao)(yao)(yao)(yao)(yao)求(qiu)(qiu),防止生銹,振動(dong)較大的(de)軸(zhou)(zhou)應進行表面硬化處理。為(wei)了保證(zheng)輔助密封圈(quan)的(de)密封性(xing)能(neng)的(de)可靠性(xing),軸(zhou)(zhou)或軸(zhou)(zhou)套(tao)以(yi)及(ji)密封圈(quan)凹槽的(de)表面光潔度(du)(du)(du)要(yao)(yao)(yao)(yao)(yao)(yao)求(qiu)(qiu)符(fu)合技術(shu)(shu)要(yao)(yao)(yao)(yao)(yao)(yao)求(qiu)(qiu)。