長子機械密封利用(yong)(yong)機(ji)械方式傳(chuan)(chuan)(chuan)遞(di)動(dong)(dong)(dong)(dong)力和(he)(he)(he)運動(dong)(dong)(dong)(dong)的(de)(de)傳(chuan)(chuan)(chuan)動(dong)(dong)(dong)(dong)，機(ji)械傳(chuan)(chuan)(chuan)動(dong)(dong)(dong)(dong)在機(ji)械工(gong)程中(zhong)應(ying)用(yong)(yong)非常廣泛，有多種形式，主要(yao)包括皮帶(dai)傳(chuan)(chuan)(chuan)動(dong)(dong)(dong)(dong)、齒(chi)(chi)輪(lun)傳(chuan)(chuan)(chuan)動(dong)(dong)(dong)(dong)、鏈傳(chuan)(chuan)(chuan)動(dong)(dong)(dong)(dong)、蝸桿(gan)蝸輪(lun)傳(chuan)(chuan)(chuan)動(dong)(dong)(dong)(dong)、齒(chi)(chi)輪(lun)齒(chi)(chi)條(tiao)傳(chuan)(chuan)(chuan)動(dong)(dong)(dong)(dong)和(he)(he)(he)螺旋傳(chuan)(chuan)(chuan)動(dong)(dong)(dong)(dong)等。齒(chi)(chi)輪(lun)傳(chuan)(chuan)(chuan)動(dong)(dong)(dong)(dong)能(neng)夠用(yong)(yong)于(yu)大功率(lv)的(de)(de)場(chang)(chang)合，傳(chuan)(chuan)(chuan)動(dong)(dong)(dong)(dong)比準確(que)，但一般要(yao)求較高的(de)(de)制(zhi)造精(jing)(jing)度和(he)(he)(he)安裝精(jing)(jing)度。還(huan)有一類(lei)是靠(kao)機(ji)件(jian)間(jian)的(de)(de)摩擦力傳(chuan)(chuan)(chuan)遞(di)動(dong)(dong)(dong)(dong)力和(he)(he)(he)運動(dong)(dong)(dong)(dong)的(de)(de)摩擦傳(chuan)(chuan)(chuan)動(dong)(dong)(dong)(dong)，包括帶(dai)傳(chuan)(chuan)(chuan)動(dong)(dong)(dong)(dong)、繩傳(chuan)(chuan)(chuan)動(dong)(dong)(dong)(dong)和(he)(he)(he)摩擦輪(lun)傳(chuan)(chuan)(chuan)動(dong)(dong)(dong)(dong)等。摩擦傳(chuan)(chuan)(chuan)動(dong)(dong)(dong)(dong)容易實現無級變速(su)，可以適應(ying)軸間(jian)距較大的(de)(de)傳(chuan)(chuan)(chuan)動(dong)(dong)(dong)(dong)場(chang)(chang)合，而過載打滑(hua)還(huan)能(neng)起到緩(huan)沖和(he)(he)(he)保(bao)護傳(chuan)(chuan)(chuan)動(dong)(dong)(dong)(dong)裝置的(de)(de)作用(yong)(yong)，但這種傳(chuan)(chuan)(chuan)動(dong)(dong)(dong)(dong)一般不(bu)能(neng)用(yong)(yong)于(yu)大功率(lv)的(de)(de)場(chang)(chang)合，也不(bu)能(neng)保(bao)證準確(que)的(de)(de)傳(chuan)(chuan)(chuan)動(dong)(dong)(dong)(dong)比。

　　傳動形式多，但是長子機械密封的更(geng)換工作(zuo)大(da)同小異(yi)，首先拆前需確認電機處(chu)于檢(jian)修狀態(tai)，擰(ning)下(xia)加油(you)螺塞，用(yong)吸管把(ba)密封座腔內的潤滑(hua)油(you)吸出。準備(bei)好(hao)放置泵零件的工作(zuo)臺及拆裝工具(ju)，切勿任意亂(luan)放亂(luan)用(yong)，避免(mian)碰壞泵的零部件。

　　拆對(dui)分式(shi)聯軸(zhou)器：先把聯軸(zhou)器的(de)固(gu)定(ding)內六(liu)角螺釘擰(ning)下來(lai)，再(zai)輕輕把聯軸(zhou)器的(de)一半從軸(zhou)上慢(man)慢(man)拉下，注(zhu)意不要掉了，再(zai)用梅(mei)花扳手(shou)擰(ning)下泵(beng)軸(zhou)吊緊(jin)螺栓(shuan)和(he)擋塊，讓葉(xie)輪慢(man)慢(man)下沉至泵(beng)體，然后拆下另外一半聯軸(zhou)器，拿下泵(beng)軸(zhou)擋圈。

　　拆卸長子機械密封：抓住密封彈簧順(shun)著(zhu)泵軸往上提，就能拆下來(lai)了。

　　拆卸(xie)并(bing)清洗軸(zhou)承座：先輕(qing)輕(qing)松動一下軸(zhou)承座后用拆卸(xie)螺栓頂起軸(zhou)承座，并(bing)且沿著泵軸(zhou)往上提而卸(xie)下，再用噴氣燃料清洗軸(zhou)承及(ji)座，裝前晾干(gan)并(bing)涂抹少(shao)許(xu)20號機械油用來潤滑(hua)保(bao)護。

　　拆密(mi)封(feng)座：擰下(xia)密(mi)封(feng)座壓緊螺母，輕(qing)輕(qing)卸下(xia)密(mi)封(feng)座并清洗。

　　長子機械密封裝(zhuang)配：在動、靜(jing)(jing)環(huan)鏡面(mian)上(shang)涂一層潔凈的20號潤滑(hua)油，導軸(zhou)(zhou)承座(zuo)也抹上(shang)潤滑(hua)油，先把靜(jing)(jing)環(huan)輕輕定位(wei)裝(zhuang)入導軸(zhou)(zhou)承座(zuo)，再在泵(beng)(beng)軸(zhou)(zhou)上(shang)抹上(shang)潤滑(hua)油，把動環(huan)部(bu)分輕輕裝(zhuang)入泵(beng)(beng)軸(zhou)(zhou)上(shang)，用手(shou)輕推密(mi)封環(huan)應能伸縮自如，注(zhu)意動、靜(jing)(jing)環(huan)部(bu)分的防轉部(bu)位(wei)需裝(zhuang)配到位(wei)。

　　裝(zhuang)(zhuang)聯(lian)軸(zhou)(zhou)器(qi)(qi)：在(zai)電機(ji)軸(zhou)(zhou)頭上(shang)(shang)(shang)裝(zhuang)(zhuang)上(shang)(shang)(shang)擋(dang)圈，裝(zhuang)(zhuang)上(shang)(shang)(shang)一(yi)半聯(lian)軸(zhou)(zhou)器(qi)(qi)，再(zai)在(zai)泵軸(zhou)(zhou)端和聯(lian)軸(zhou)(zhou)器(qi)(qi)槽內裝(zhuang)(zhuang)上(shang)(shang)(shang)擋(dang)塊并用梅花扳手擰(ning)緊螺栓；再(zai)裝(zhuang)(zhuang)上(shang)(shang)(shang)另一(yi)半聯(lian)軸(zhou)(zhou)器(qi)(qi)擰(ning)上(shang)(shang)(shang)內六角螺釘。安(an)裝(zhuang)(zhuang)聯(lian)軸(zhou)(zhou)器(qi)(qi)正確的(de)檢查要(yao)求：對分式聯(lian)軸(zhou)(zhou)器(qi)(qi)上(shang)(shang)(shang)下間隙需要(yao)均勻，用手盤動聯(lian)軸(zhou)(zhou)器(qi)(qi)幾圈檢查轉動的(de)靈活性(xing)。

　　裝(zhuang)密封(feng)(feng)座(zuo)：先將密封(feng)(feng)座(zuo)裝(zhuang)入橡膠(jiao)油封(feng)(feng)，再把(ba)密封(feng)(feng)座(zuo)裝(zhuang)入泵蓋并(bing)壓(ya)(ya)在(zai)軸(zhou)承座(zuo)上，擰緊(jin)(jin)螺(luo)母，確保所有(you)安裝(zhuang)螺(luo)釘緊(jin)(jin)固。當安裝(zhuang)螺(luo)釘被用(yong)作密封(feng)(feng)與軸(zhou)之間(jian)的驅動時(shi)，軸(zhou)應打埋頭孔來加固連接，緊(jin)(jin)固壓(ya)(ya)蓋螺(luo)栓時(shi)應該平穩緊(jin)(jin)固，并(bing)且不要使壓(ya)(ya)蓋受彈力(li)。在(zai)可能的地方(fang)使用(yong)4個以上螺(luo)釘的等(deng)間(jian)距壓(ya)(ya)蓋，緊(jin)(jin)固壓(ya)(ya)蓋螺(luo)栓時(shi)，用(yong)塞尺檢查軸(zhou)與壓(ya)(ya)蓋之間(jian)的間(jian)隙，這在(zai)密封(feng)(feng)腔對壓(ya)(ya)蓋不導向時(shi)，顯得(de)特別重(zhong)要，因(yin)為壓(ya)(ya)蓋必須(xu)對中。