Ama-shafts aphuma kuma-transmission units nezinye izinqubo zemoto angabangela ukuvuza nokungcoliswa kwamafutha - le nkinga ixazululwa ngokufaka ama-oil seal.Funda konke mayelana nama-drive oil seals, ukuhlukaniswa kwawo, ukuklama nokusebenziseka kwawo, kanye nokukhetha okulungile nokushintshwa kwezigxivizo esihlokweni.
Iyini i-actuator oil seal?
I-drive oil seal (i-cuff) iyisici sokuvala amayunithi ahlukahlukene nezinhlelo zezimoto;Ingxenye ye-annular evala ama-shafts, ama-bearings nezinye izingxenye ezijikelezayo ezindaweni zazo zokuphuma kusukela kuyunithi yezindlu.
Kunoma iyiphi imoto, ugandaganda nezinye izinto ezisetshenziswayo kukhona amayunithi kanye nemishini, emzimbeni lapho kuphuma imishayo ejikelezayo - gearboxes, gearboxes, fan drives nabanye.Ngokuvamile, kunamafutha noma amanye amafutha ngaphakathi kwala mayunithi, futhi imbobo ye-shaft ingabangela ukulahlekelwa nokungcoliswa kwe-lubricant.Umsebenzi wokuvala ukukhishwa kwama-shafts ajikelezayo ngaphandle kwezindlu zamayunithi uxazululwa ngosizo lwezakhi ezikhethekile zokuvala - izimpawu zamafutha (ama-cuffs) we-drive.
I-drive oil seal yenza imisebenzi eminingana:
● Ukuvinjelwa kokuvuza kukawoyela kanye nokulahlekelwa okunye okokugcoba emzimbeni weyunithi noma umshini;
● Ukuvikelwa komshini ekungeneni kwamanzi, uthuli nokungcola okukhulu;
● Ukuvikelwa kwe-lubricant ekungcolisweni yi-exhaust namanye amagesi.
Ukwephulwa kobuqotho noma ukulahlekelwa uphawu lwamafutha kuholela ekuvuzeni okuphawulekayo nokungcola kwamafutha, okungenzeka esikhathini esizayo esiseduze kungabangela umonakalo kulo lonke iyunithi.Ukuvimbela lokhu, uphawu lwamafutha okushayela oluphelile noma olungalungile kufanele lushintshwe ngesikhathi esifanele.Ukuze ukhethe okulungile nokushintshwa kwezinto zokuvala uphawu, kuyadingeka ukuqonda izinhlobo ezikhona, ukuklama nokusebenza.
Izinhlobo, ukwakheka kanye nezici ze-drive oil seals
Zonke izimpawu zikawoyela zenziwe ngendlela yendandatho enephrofayili emise okwe-U, lapho kugqama khona izindawo ezintathu:
● Ingaphakathi noma elisebenzayo - liqukethe imiphetho yokusebenza, uphawu lwamafutha luhlala ku-shaft nalokhu okungaphezulu;
● Ngaphandle - bushelelezi noma kunothayela, le ndawo yophawu lwamafutha ixhumene nomzimba weyunithi;
● End - ngokuvamile iphansi, le ndawo ihambisana nomzimba weyunithi.
I-cuff ifakwe esihlalweni emzimbeni weyunithi (ibhokisi lokunamathisela) futhi ihlezi ku-shaft, ngenxa yokuklama, ukucindezela kwayo okuqinile emzimbeni kanye ne-shaft kuyaqinisekiswa, okufezekisa ukubekwa uphawu.
Izigxivizo zikawoyela zihlukaniswe zaba izinhlobo eziningana ngokuya ngokuba khona / ukungabikho kwezakhi ezahlukahlukene nezici zomsebenzi.
Okokuqala, izimpawu zikawoyela zihlukaniswe izinhlobo ezimbili ngokuya ngomklamo wazo:
● Okungenasici;
● Ngohlaka oluqinisayo.
Izimpawu zamafutha zohlobo lokuqala zenziwa ngendlela yendandatho enwebekayo eyenziwe ngerabha yokwenziwa, endaweni engaphakathi lapho kwakhiwa khona imiphetho yokusebenza.Njengokwejwayelekile, kunemiphetho emibili yokusebenza ezimpahleni zikawoyela - ngaphambili nangemuva, kodwa inani labo lingafinyelela ezine.Ngaphakathi kwendandatho kukhona isiphethu esigoqiwe esigoqelwe esiyingini, esinikeza ukucindezela okuqinile kophawu lwamafutha ku-shaft.
Izimpawu zamafutha zohlobo lwesibili ziyinkimbinkimbi kakhulu - ngaphakathi kwendandatho kukhona ifreyimu yokuqinisa insimbi yesimo esisodwa noma esinye.Imvamisa, ifreyimu inomugqa oqondile (ipuleti eligoqwe eringini) noma iphrofayili emise okwe-L, kepha kunezimpawu zamafutha ezinamafreyimu ephrofayili eyinkimbinkimbi.Ezinye izingxenye eziqinisiwe zifana nalezo ezingaqinisiwe.
Izigxivizo zikawoyela ezinohlaka oluqinisayo zihlukaniswa zibe izinhlobo ezintathu zesakhiwo:
● Ngohlaka oluvaliwe;
● Ngohlaka olungenalutho;
● Ngefreyimu engenalutho.
Ekwakhiweni kohlobo lokuqala, ifreyimu itholakala ngokuphelele ngaphakathi kwendandatho yenjoloba yophawu lwamafutha, noma indandatho ihlanganisa ngokuphelele indawo yangaphandle yohlaka.Esimweni sesibili, indandatho ihlanganisa ukuphela kanye nengxenye yendawo yangaphandle yefreyimu, kanti okwesithathu, ifreyimu icishe ivuleke ngokuphelele.Izigxivizo zamafutha ezinohlaka oluqinisayo oluyingxenye futhi olungenalutho zifakwe ngokuqinile esihlalweni sazo, njengoba ziphikisana nomzimba wensimbi weyunithi enendandatho yensimbi.Nakuba izimpawu ezinjalo zamafutha zinikeza uphawu olubi kakhulu, oluphoqa ukusetshenziswa kwama-sealants noma izingxenye ezengeziwe
Idizayini ejwayelekile ye-drive oil seal
Umklamo we-oil seal engaqinisiwe nge-spring
Idizayini kanye nobukhulu obuyinhloko be-oil reinforced seal ene-spring
Indandatho yokunwebeka yazo zonke izinhlobo zezimpawu zamafutha ingenziwa ngezinhlobo ezahlukahlukene zenjoloba yokwenziwa - i-acrylate, i-fluororubber, i-nitrile butadiene, i-silicone (i-organosilicon) nabanye.Lezi zinto zinokumelana okungalingani emazingeni okushisa aphezulu naphansi kanye nezinto zokugcoba, kodwa zinama-coefficients afanayo of friction kunsimbi namandla emishini.
Izigxivizo zikawoyela weDrayivu zingaba nezinto ezengeziwe ezengeziwe:
● I-anther iyindawo encane engaphambili yeringi evimbela ukungcola okukhulu (amatshe, izintambo, ama-chips, njll.) ukuba kungene uphawu lukawoyela.I-boot ingacindezelwa ngokumelene ne-shaft ngenxa yokuqina kwayo noma ngosizo lwentwasahlobo eyengeziwe esontekile;
● Ukonakala kwendawo yangaphandle - ukubola kwezimo ezilula noma eziyinkimbinkimbi, okuthuthukisa ukulingana kophawu lukawoyela futhi kuvimbele ukuvuza kukawoyela ngesivinini esikhulu nalapho izinga lokushisa likhuphuka;
● Ama-Hydrodynamic knurlings namanotshi endaweni engaphakathi (esebenzayo).Amanotshi anedeshi asetshenziswa nge-engeli ethile ku-eksisi yesivalo sikawoyela, okuvimbela ukuvuza kukawoyela ngesivinini esiphezulu se-shaft.Amanotshi angenziwa kuyo yonke indawo engaphakathi, noma ngesimo samaringi ambalwa endaweni yokusebenza kanye nemiphetho yokusebenza.
Izigxivizo zikawoyela zihlukaniswe ngamaqembu amabili ngokuya ngokujikeleza kwe-shaft:
● Kumashafu anesiqondiso esingaguquki sokuzungezisa;
● Kumashafu azungezisayo.
Izigxivizo ngezinhloso ezehlukene ziyahlukahluka ohlotsheni lokuguqa noma lokuchopha endaweni yokusebenza.Ezimpawu zamafutha zama-shafts anesiqondiso esiqhubekayo sokujikeleza, i-knurling yenziwa ngendlela yokuqhafaza eqondiswe ohlangothini olulodwa, ngakho-ke izingxenye ezinjalo ziza nama-knurl "kwesokudla" kanye "nesobunxele" (notches).Ezigxivizweni zikawoyela ezibuyiselwa emuva, inothi i-zigzag noma iyinkimbinkimbi ngokuma.
Okokugcina, kunezinhlobo ezimbili zama-drive oil seals ngokwezinga lokuvikela:
● Okuvamile (okujwayelekile);
● Ikhasethi.
Izigxivizo zikawoyela ezivamile zinomklamo ochazwe ngenhla.Izigxivizo zekhasethi zenziwe ngendlela yezindandatho ezimbili ezifakwe enye kwenye (indandatho yangaphandle ihlezi emzimbeni weyunithi futhi ihlezi ngokumelene ne-shaft, indandatho yangaphakathi ihlezi ngaphandle futhi ingxenye ihlezi ku-shaft) - lo mklamo umelana nomshini obalulekile. imithwalo futhi inikeze ukuvikeleka okungcono ekungeneni kwezinto ezingcolile.Izigxivizo zekhasethi zisetshenziswa kumayunithi asebenza ngaphansi kwezimo zokwanda kothuli nokungcola.
Sengiphetha, siphawula ukuthi ezimotweni, ogandaganda kanye nezinye izinto ezisetshenziswa uwoyela seals izinjongo ezihlukahlukene: wheel shafts, gearbox shafts kanye gearboxes, fan drive shafts nabanye.Kodwa ingxenye enkulu yezingxenye itholakala ekudluliselweni, okuthole kuyo igama layo.
Umklamo we-Cassette gland
Indlela yokukhetha nokufaka esikhundleni se-oil seal ngendlela efanele
Izigxivizo zikawoyela wokushayela zingaphansi kwemithwalo ebalulekile, okuthi ngokuhamba kwesikhathi kuholele ekugugekeni, ekulimaleni noma ekubhujisweni okuphelele kophawu.Uma ukuvuza kukawoyela kwenzeka, uphawu lukawoyela kufanele lushintshwe, ngaphandle kwalokho ukusetshenziswa kukawoyela kuzokhula futhi nengozi yokungcola inyuke, okuvame ukwandisa ukuguga kwezingxenye zeyunithi.Futhi, izimpawu zikawoyela zidinga ukushintshwa ngokuya ngokuthuthukiswa kwensiza - isikhathi sokushintsha ngokuvamile siboniswa umenzi weyunithi.
Yilezo zinhlobo kuphela namamodeli wezimpawu zikawoyela ezifakwe ngaphambilini futhi zatuswa umenzi womshini (okunqunywa inombolo yengxenye kukhathalogi yasekuqaleni) okufanele zisetshenziselwe ukumiselela.Kwezinye izimo, kuvunyelwe ukuphendukela ekushintsheni, kodwa lokhu kufanele kwenziwe ngokuqapha futhi kucatshangelwe izici ze-cuffs ngezinhloso ezihlukahlukene.Isibonelo, izigxivizo zikawoyela zama-axle shaft ama-axle okushayela kufanele zibe ne-notch ehlehliswayo (i-knurling), ngaphandle kwalokho maduzane ngemva kokufakwa kwazo kuzoba nokuvuza kwamafutha ezindleleni ezithile zokushayela noma ukuvuza okuqhubekayo ngenxa yokungasebenzi kahle kophawu.Ngakolunye uhlangothi, akunangqondo ukubeka i-cuff ebuyela emuva ku-fan, njengoba i-shaft okufanele ivalwe ihlale izungeza ohlangothini olulodwa.
Ukushintshwa kwezimpawu zamafutha okushayela kufanele kwenziwe ngokuhambisana nemiyalelo yokulungisa nokugcinwa kwemoto.Lo msebenzi ungase udinge ukuhlakazwa okubalulekile kweyunithi elungiswayo, ngakho-ke kungcono ukuthembela kochwepheshe.Lapho ufaka uphawu ngokwakho, kufanele uhambisane ngokuqinile nezincomo ezinikezwe emiyalweni, ngaphandle kwalokho kunengozi enkulu yokulimaza ingxenye noma ukuyifaka ngokungalungile.I-recess ye-cuff endala ingenziwa nge-screwdriver evamile noma enye into ekhonjiwe, kodwa lokhu kufanele kwenziwe ngokucophelela ukuze kungalimazi ubuso bomzimba kanye ne-shaft.Kungcono ukufaka uphawu olusha usebenzisa i-mandrel ekhethekile eqinisekisa ukucwiliswa okufanayo kwe-oil seal ebhokisini le-gland.Ngaphambi kokufakwa, i-cuff igcotshwa nge-lubricant.Ezimweni lapho kusetshenziswa uphawu lwamafutha olunohlaka oluqinile olungenalutho noma oluveziwe ngokwengxenye, kuyadingeka ukuphatha iphuzu lokuxhumana kohlaka nomzimba weyunithi nge-sealant.Ngemva kokuqeda umsebenzi, kuyadingeka ukwengeza amafutha ku-crankcase yeyunithi.
Ngokukhetha okulungile nokushintshwa kwe-drive oil seal, iyunithi izokwenza imisebenzi yayo ngokuthembekile, ukusebenza kwayo ngeke kuphazanyiswe ukuvuza nokungcoliswa kwamafutha kunoma yiziphi izimo zokusebenza.
Isikhathi sokuthumela: Jul-13-2023