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聯系客服,馬上詢價
發布(bu)時(shi)間:2021-12-20 15:24:47 人氣:98608 來源:
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。渣漿秀洲泵用秀洲機械密封的工作原理要求秀洲機械密封內部無任何雜質,在組裝秀洲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秀洲機械密封嚴重漏泄(xie)。必要時(shi)可(ke)以制(zhi)作工裝在(zai)組裝前(qian)水壓試驗,檢(jian)查動(dong)靜環座是否存在(zai)影響(xiang)密(mi)封的缺陷。
渣漿秀洲泵用秀洲機械密封由于密封面變形所引起的,而且秀洲機械密封面泄漏的概率是很高的。如果泵在啟動時就發生秀洲泵用秀洲機械密封泄漏,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秀洲機械密封的變形情況。如果發生變形,用平晶檢(jian)查密封(feng)面的干(gan)涉帶的變化情況,密封(feng)面變形存在于動環和靜環之間。
壓(ya)缸(gang)體(ti)(ti)動(dong)(dong)態密(mi)(mi)(mi)(mi)(mi)(mi)封(feng)(feng)(feng)系統采用(yong)的是(shi)主密(mi)(mi)(mi)(mi)(mi)(mi)封(feng)(feng)(feng)設計(ji),一般(ban)都(dou)用(yong)U型密(mi)(mi)(mi)(mi)(mi)(mi)封(feng)(feng)(feng)圈。液壓(ya)缸(gang)體(ti)(ti)的往復式(shi)動(dong)(dong)態密(mi)(mi)(mi)(mi)(mi)(mi)封(feng)(feng)(feng)系統的設計(ji),開始使(shi)用(yong)了(le)更加復雜的U型圈和(he)(he)(he)同(tong)軸(zhou)密(mi)(mi)(mi)(mi)(mi)(mi)封(feng)(feng)(feng)組件的復合(he)(he)式(shi)設計(ji)。密(mi)(mi)(mi)(mi)(mi)(mi)封(feng)(feng)(feng)的靜(jing)環(huan)(huan)通常(chang)固定(ding)在殼體(ti)(ti)上(shang),動(dong)(dong)環(huan)(huan)通過彈簧(huang)、彈簧(huang)座與(yu)(yu)軸(zhou)一同(tong)旋轉。靜(jing)環(huan)(huan)與(yu)(yu)殼體(ti)(ti)、動(dong)(dong)環(huan)(huan)與(yu)(yu)軸(zhou)形(xing)成(cheng)(cheng)的間隙用(yong)成(cheng)(cheng)型填(tian)料密(mi)(mi)(mi)(mi)(mi)(mi)封(feng)(feng)(feng)。在動(dong)(dong)環(huan)(huan)和(he)(he)(he)靜(jing)環(huan)(huan)接(jie)觸的端面(mian)(mian)(mian)形(xing)成(cheng)(cheng)相對滑(hua)動(dong)(dong)面(mian)(mian)(mian),即動(dong)(dong)密(mi)(mi)(mi)(mi)(mi)(mi)封(feng)(feng)(feng)面(mian)(mian)(mian)。為保證密(mi)(mi)(mi)(mi)(mi)(mi)封(feng)(feng)(feng)良好(hao)(hao),動(dong)(dong)密(mi)(mi)(mi)(mi)(mi)(mi)封(feng)(feng)(feng)面(mian)(mian)(mian)應十分平(ping)直和(he)(he)(he)光潔(jie)。彈簧(huang)力和(he)(he)(he)被密(mi)(mi)(mi)(mi)(mi)(mi)封(feng)(feng)(feng)的流體(ti)(ti)壓(ya)力使(shi)動(dong)(dong)環(huan)(huan)貼緊(jin)靜(jing)環(huan)(huan)。因動(dong)(dong)環(huan)(huan)與(yu)(yu)軸(zhou)通過彈簧(huang)連接(jie),動(dong)(dong)環(huan)(huan)和(he)(he)(he)靜(jing)環(huan)(huan)間貼合(he)(he)性受(shou)軸(zhou)的振動(dong)(dong)和(he)(he)(he)擺動(dong)(dong)影響(xiang)較小。靜(jing)環(huan)(huan)一般(ban)常(chang)用(yong)潤滑(hua)性好(hao)(hao)的軟質(zhi)材料如石墨、填(tian)充聚四氟乙烯(xi)等,動(dong)(dong)環(huan)(huan)多用(yong)硬質(zhi)合(he)(he)金、陶瓷等材料制造。