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聯系客服,馬上詢價
發(fa)布時間:2021-12-20 15:24:47 人氣:99837 來(lai)源:
反壓狀態是不良的工作狀態,介質中的顆粒、雜質很容易進入密封面,使密封失效。磨軸的主要件為橡膠波紋管,且由于上端密封面處于不良潤滑狀態,動靜環之間的摩擦力矩大于橡膠波紋管與軸之間的傳遞轉矩,從而發生相對轉動。動、靜環輔助密封由于受到污水中的弱酸、弱堿的腐蝕,橡膠件已無彈性。渣漿青神泵用青神機械密封的工作原理要求青神機械密封內部無任何雜質,在組裝青神機械密封前要徹底清掃動環、靜環、軸套等部件,檢查動靜環表面是否存在劃痕、裂紋等缺陷,這些缺陷存在會造成青神機械密封嚴(yan)重漏泄。必要時可(ke)以制(zhi)作工裝在(zai)組裝前水壓試(shi)驗(yan),檢查動靜環(huan)座是否存在(zai)影(ying)響密封的缺陷(xian)。
渣漿青神泵用青神機械密封由于密封面變形所引起的,而且青神機械密封面泄漏的概率是很高的。如果泵在啟動時就發生青神泵用青神機械密封泄漏,而拆查密封面時看不見有損壞的地方,這時就應該用平晶檢查青神機械密封的(de)(de)變形(xing)情況。如(ru)果發生變形(xing),用(yong)平(ping)晶檢查密封面(mian)(mian)的(de)(de)干(gan)涉帶的(de)(de)變化(hua)情況,密封面(mian)(mian)變形(xing)存在于(yu)動(dong)環和靜環之(zhi)間(jian)。
壓缸(gang)體(ti)動(dong)(dong)(dong)態(tai)密(mi)(mi)封(feng)(feng)系(xi)統采用(yong)的(de)(de)是主密(mi)(mi)封(feng)(feng)設(she)計(ji),一般都(dou)用(yong)U型密(mi)(mi)封(feng)(feng)圈。液壓缸(gang)體(ti)的(de)(de)往(wang)復(fu)(fu)式(shi)動(dong)(dong)(dong)態(tai)密(mi)(mi)封(feng)(feng)系(xi)統的(de)(de)設(she)計(ji),開始使用(yong)了(le)更加復(fu)(fu)雜的(de)(de)U型圈和(he)(he)同軸密(mi)(mi)封(feng)(feng)組件的(de)(de)復(fu)(fu)合式(shi)設(she)計(ji)。密(mi)(mi)封(feng)(feng)的(de)(de)靜(jing)(jing)環(huan)(huan)(huan)通(tong)常固定在(zai)殼(ke)體(ti)上,動(dong)(dong)(dong)環(huan)(huan)(huan)通(tong)過彈(dan)(dan)簧(huang)、彈(dan)(dan)簧(huang)座與軸一同旋(xuan)轉。靜(jing)(jing)環(huan)(huan)(huan)與殼(ke)體(ti)、動(dong)(dong)(dong)環(huan)(huan)(huan)與軸形成(cheng)的(de)(de)間(jian)隙(xi)用(yong)成(cheng)型填(tian)(tian)料(liao)(liao)(liao)密(mi)(mi)封(feng)(feng)。在(zai)動(dong)(dong)(dong)環(huan)(huan)(huan)和(he)(he)靜(jing)(jing)環(huan)(huan)(huan)接觸的(de)(de)端(duan)面(mian)形成(cheng)相(xiang)對滑動(dong)(dong)(dong)面(mian),即(ji)動(dong)(dong)(dong)密(mi)(mi)封(feng)(feng)面(mian)。為(wei)保證(zheng)密(mi)(mi)封(feng)(feng)良好,動(dong)(dong)(dong)密(mi)(mi)封(feng)(feng)面(mian)應(ying)十分平直和(he)(he)光(guang)潔。彈(dan)(dan)簧(huang)力(li)和(he)(he)被(bei)密(mi)(mi)封(feng)(feng)的(de)(de)流(liu)體(ti)壓力(li)使動(dong)(dong)(dong)環(huan)(huan)(huan)貼(tie)緊(jin)靜(jing)(jing)環(huan)(huan)(huan)。因動(dong)(dong)(dong)環(huan)(huan)(huan)與軸通(tong)過彈(dan)(dan)簧(huang)連接,動(dong)(dong)(dong)環(huan)(huan)(huan)和(he)(he)靜(jing)(jing)環(huan)(huan)(huan)間(jian)貼(tie)合性(xing)受軸的(de)(de)振動(dong)(dong)(dong)和(he)(he)擺動(dong)(dong)(dong)影響較(jiao)小。靜(jing)(jing)環(huan)(huan)(huan)一般常用(yong)潤滑性(xing)好的(de)(de)軟質材料(liao)(liao)(liao)如(ru)石(shi)墨、填(tian)(tian)充(chong)聚四氟乙烯等(deng),動(dong)(dong)(dong)環(huan)(huan)(huan)多(duo)用(yong)硬質合金、陶瓷等(deng)材料(liao)(liao)(liao)制造。