ithini i-oil seal futhi yini umehluko phakathi kwe-TC oil seal, TB oil seal, TA oil seal?

Umshini ukhiqiza i-oil seal

• I-TC iyindlela yokumela yamazinga amasha kazwelonke.

Japan, Taiwan, nezinye izindawo.I-FB iyindlela yokumela yezinga elidala likazwelonke, elinesakhiwo nokuqukethwe okufanayo.Ngokufanayo, izindinganiso eziningi zaseYurophu zisebenzisa i-AS ukumela izimpawu zikawoyela ze-TC ne-FB.Izindinganiso ze-FB ne-FC yi-GB10708.3-189.I-TC iyindlela yokumela yamazinga amasha kazwelonke, i-Japan, i-Taiwan, nezinye izindawo.I-TC oil seal iyingxenye yemishini esetshenziselwa ukuvala uwoyela (uwoyela uyinto ewuketshezi evame kakhulu ezinhlelweni zokudlulisela, evame ukubizwa ngokuthi uketshezi olujwayelekile).

(1).I-FB iyindlela yokumela yezinga elidala likazwelonke, elinesakhiwo nokuqukethwe okufanayo.

(2).Amazinga amaningi angaphakathi e-Europe asebenzisa uphawu lukawoyela lwe-AS ukumela izimpawu zikawoyela ze-TC ne-FB.

Izigxivizo zikawoyela zisetshenziswa kakhulu emikhakheni eyahlukene yezimboni, ikakhulukazi emishinini eyimishini efana nezinhlelo ezisebenza ngogesi, izinjini, amaphampu, amabhokisi ogiya, amadivaysi okudlulisa kanye nezimoto.Basiza ukugcina ukusebenza okuvamile kwemishini yemishini, bandise impilo yesevisi yemishini, ukunciphisa izindleko zokulungisa, nokuqinisekisa ukusebenza kahle kwemishini.

Ukuklanywa nokukhethwa kwezimpawu zikawoyela kufanele kucabangele izici eziningi, okuhlanganisa indawo yokusebenza, uhlobo loketshezi, izinga lokushisa, izidingo zengcindezi, izidingo zejubane, njll. Izinhlobo ezahlukene zezimpawu zikawoyela zifanele izimo zokufaka isicelo ezihlukene.Izinhlobo ezivamile zama-oil seal zihlanganisa ama-rotary shaft seal, ama-piston seal, ama-static seal, njll. Izigxivizo zikawoyela ngokuvamile zinezindebe zangaphakathi nezingaphandle, udebe lwangaphakathi luqinile ngokumelene ne-shaft ejikelezayo kanye nodebe olungaphandle luqinile ngokumelene nezingxenye ezigxilile.Lokhu kudala umphumela wokuvala ngenxa yokungqubuzana phakathi kwezindebe zangaphakathi nezingaphandle ngesikhathi sokusebenza kwe-shaft ejikelezayo.

Kafushane, izimpawu zikawoyela zidlala indima ebalulekile emikhakheni efana nemishini yobunjiniyela, izimoto kanye nemishini yezimboni, ukuqinisekisa ukusebenza okujwayelekile kwemishini eyimishini, ukuvikela ukuvuza okuwuketshezi nokungcola kwangaphandle ukuthi kungangeni, ngaleyo ndlela kuqinisekisa ukuzinza, ukuphepha nokusebenza kahle kwemishini. imishini.

1.Indlela yokumelela uphawu lukawoyela

Izindlela zokumela ezivamile:

Uhlobo lophawu lwamafutha - ububanzi bangaphakathi - ububanzi bangaphandle - ukuphakama - impahla

Isibonelo, i-TC40 * 62 * 12-NBR imele isivalo samafutha samathambo sangaphakathi sezindebe ezimbili ezinobubanzi bangaphakathi obungama-40, ububanzi obungaphandle obungu-62, ukujiya obungu-12, kanye nerubhu ye-nitrile.

2.Material of oil seal

Irabha ye-Nitrile (NBR): ukumelana nokugqoka, ukumelana nowoyela (akukwazi ukusetshenziswa kumithombo ye-polar), ukumelana nezinga lokushisa: -40~120 ℃.

Irabha ye-nitrile ene-Hydrogenated (HNBR): Ukumelana nokugqoka, ukumelana nowoyela, ukumelana nokuguga, ukumelana nezinga lokushisa: -40~200 ℃ (kunamandla kunokumelana nezinga lokushisa le-NBR).

Ukunamathela kwe-fluorine (FKM): ukumelana ne-asidi ne-alkali, ukumelana nowoyela (konke ukumelana nowoyela), ukumelana nezinga lokushisa: -20~300 ℃ (ukumelana nowoyela kungcono kunalokhu okubili okungenhla).

Irabha yePolyurethane (TPU): Ukumelana nokugqoka, ukumelana nokuguga, ukumelana nezinga lokushisa: -20~250 ℃ (ukumelana nokuguga okuhle kakhulu).

Irabha ye-Silicone (PMQ): ukumelana nokushisa, ukumelana nokubanda, isethi encane yokucindezela, amandla aphansi emishini, ukumelana nezinga lokushisa: -60 ~ 250 ℃ (ukumelana nokushisa okuhle kakhulu).

I-Polytetrafluoroethylene (PTFE): Ukuzinza okuhle kwamakhemikhali, ukumelana nemithombo yezindaba ehlukahlukene njenge-asidi ne-alkali, uwoyela, ukumelana nokugqoka, ukumelana nokushisa okuphezulu, amandla aphezulu emishini, nokuzigcoba okuhle.

Ngokuvamile, izinto ezivame ukusetshenziselwa ama-skeleton oil seals yirabha ye-nitrile, i-fluororubber, irabha ye-silicone, ne-polytetrafluoroethylene.Ngenxa yokuzigcoba kwayo okuhle, ikakhulukazi uma yengezwe ngethusi, iba nemiphumela engcono, futhi yonke isetshenziselwa ukwenza izindandatho ezigcinayo, izindandatho ze-Gly, nama-Stuart seal.

Hlukanisa imodeli ye-skeleton oil seal

I-C-type skeleton oil seal ingahlukaniswa ngezinhlobo ezinhlanu: uhlobo lwe-SC, uhlobo lwe-TC, uhlobo lwe-VC, uhlobo lwe-KC, nohlobo lwe-DC.Ziyi-single lip inner skeleton oil seal, i-double lip inner skeleton oil seal, i-single lip spring free inner skeleton oil seal, i-double lip spring free inner skeleton oil seal, kanye ne-double lip spring free inner skeleton oil seal.(Sincoma ukuthi unake i-akhawunti esemthethweni ethi "Mechanical Engineer" ukuze ubambe ulwazi lwezimpahla ezomile nolwazi lwemboni ngesikhathi sokuqala)

I-G-type skeleton oil seal inomumo onentambo ngaphandle, ofana nohlobo lwe-C.Ilungiswa kuphela ukuze ibe ne-threaded shape ngaphandle ngokobuchwepheshe, efana nomsebenzi we-O-ring, engagcini nje ukuqinisa umphumela wokuvala kodwa futhi ilungisa uphawu lwamafutha ngaphandle kokukhululeka.

I-B-type skeleton oil seal ine-adhesive ohlangothini lwangaphakathi lohlaka lwamathambo noma akukho okunamathelayo ezinhlangothini zombili zohlaka lwamathambo.Ukungabikho kokunamathela kuzothuthukisa ukusebenza kokukhipha ukushisa.

I-A-type skeleton oil seal iyisigxivizo sikawoyela esenziwe ngaphambili esinesakhiwo esiyinkimbinkimbi uma siqhathaniswa nezinhlobo ezintathu ezingenhla, ezibonakala ngokusebenza okungcono nokucindezela okuphezulu.

3.Wonke anezinhlobo ezahlukene zezigxivizo zikawoyela futhi abizwa ngokuthi izigxivizo zikawoyela ezijwayelekile ngale ndlela elandelayo:

4.Isimiso Sokuvala Nokusetshenzwa Kwe-Oil Seal

I-skeleton oil seal ihlukaniswe izingxenye ezintathu: i-self tightening spring, i-sealing body, kanye nokuqinisa uhlaka lwamathambo. , le filimu kawoyela inezici zokugcoba uketshezi.Ukuhlaziywa kwesimiso sokuvala: Ngaphansi kwesenzo sophawu lwamafutha ohlaka lwamathambo, ukuqina kwefilimu kawoyela kwakha indawo ecwebezelayo ekugcineni kokuxhumana phakathi kwefilimu kawoyela nomoya, okuvimbela ukuvuza indlela yokusebenza kanye nokufeza ukuvalwa kwe-shaft ejikelezayo.Ikhono lokuvala uphawu lwamafutha lincike ebukhulu befilimu kawoyela endaweni yokuvala.Uma ubukhulu bukhulu kakhulu, uphawu lwamafutha luzovuza;Uma ubukhulu buncane kakhulu, ukungqubuzana okomile kungase kwenzeke, okubangela ukugqoka uphawu lwamafutha kanye ne-shaft;Ayikho ifilimu yamafutha phakathi komlomo ovala uphawu kanye ne-shaft, engabangela ukushisa nokugqoka kalula.Ngakho-ke, ngesikhathi sokufakwa, kuyadingeka ukusebenzisa amafutha athile endandatho yokuvala ngenkathi uqinisekisa ukuthi uphawu lwamafutha ohlaka lwe-skeleton luyi-perpendicular ku-shaft centerline.Uma kungeyona i-perpendicular, udebe oluvala uphawu lwe-oil seal luzokhipha uwoyela wokugcoba ku-shaft futhi lubangele ukuguga ngokweqile kwezindebe zokuvala.Ngesikhathi sokusebenza, okokugcoba ngaphakathi kwegobolondo kuphuma kancane ukuze kwakheke endaweni yokuvala.

 5. Umsebenzi we-skeleton oil seal

Ngokuvamile, izakhi ezidinga ukugcotshwa ezingxenyeni zokudlulisela zihlukanisiwe nezingxenye eziphumayo ukuvimbela ukuvuza kukawoyela wokugcoba.Ivamise ukusetshenziselwa ama-shafts ajikelezayo futhi iwuhlobo lwe-shaft lip seal ejikelezayo.Uhlaka lwamathambo lufana nezinsimbi zensimbi ngaphakathi kwengxenye kakhonkolo, ludlala indima yokuqinisa futhi luvumela uphawu lukawoyela ukuthi lugcine umumo nokushuba kwalo.Ngokohlobo lohlaka lwamathambo, lungahlukaniswa lube i-inner skeleton oil seal, i-outer skeleton oil seal, kanye ne-inner and outside skeleton oil seal.I-skeleton oil seal yenziwe ngerabha ye-nitrile yekhwalithi ephezulu nepuleti lensimbi, elinekhwalithi ezinzile nempilo ende yesevisi.

1. Vimbela udaka, uthuli, umswakama, njll. ekungeneni kwe-bearing kusuka ngaphandle;

2. Nciphisa ukuvuza kwamafutha okugcoba kumabheringi.Isidingo sezimpawu zikawoyela ukuthi ubukhulu (ububanzi bangaphakathi, ububanzi bangaphandle, nobukhulu) kufanele buhambisane nemithethonqubo;Kudinga ukuqina okufanele ukuze ubambe kahle i-shaft futhi unikeze umphumela wokuvala;Kufanele imelane nokushisa, imelane nokuguga, iqine, imelane nemidiya (njengamafutha noma amanzi), futhi ibe nempilo ende yesevisi.

6.Ukukhethwa kwezimpawu zamafutha

Ukukhethwa kwezimpawu zamafutha kufanele kusekelwe endaweni yokuvala kanye nezimo zokusebenza.Indawo yokubeka uphawu idinga ukukhetha impahla yesigxivizo sikawoyela, futhi izimo zokusebenza ikakhulukazi zicabangela ingcindezi yokusebenzisa, isivinini somugqa wokusebenza, kanye nebanga lokushisa lokusebenza.

Lapho ukhetha izinto zokufaka uphawu lwamafutha, kuyadingeka ukucabangela ukuhambisana kwezinto ezibonakalayo nendawo yokusebenza, ukuguquguquka kwebanga lokushisa elisebenzayo, kanye nekhono lomlomo wokulandela ukujikeleza kwesivinini esiphezulu se-shaft ejikelezayo.Lapho usebenza ngophawu olujwayelekile lukawoyela, izinga lokushisa lodebe lwawo lingama-20 ~ 50 ℃ ngaphezu kwezinga lokushisa lendawo yokusebenza.Ukunakwa kufanele kukhokhwe lapho kukhethwa izinto zokuqinisa uwoyela.

Ingcindezi yesevisi yezimpawu zikawoyela ezijwayelekile ngokuvamile ayidluli ku-0.05MPa.Lapho ingcindezi yokusebenza idlula leli nani, kufanele kukhethwe uphawu lwamafutha olumelana nokucindezela.(Sincoma ukuthi unake i-akhawunti esemthethweni ethi "Mechanical Engineer" ukuze ubambe ulwazi lwezimpahla ezomile nolwazi lwemboni ngesikhathi sokuqala)

Ngaphansi kwesimo sobubanzi obufanayo, izimpawu zikawoyela ezenziwe ngezinto ezihlukene zinamakhono ahlukene okuzivumelanisa nesivinini somugqa wokujikeleza kwe-shaft.Ibanga lejubane eliwumugqa elisetshenziselwa izigxivizo zikawoyela ngokuvamile lingaphansi kuka-15m/s.

Uhlu olusebenzayo lophawu lwamafutha luhlobene nezinto ezisetshenziswayo: -40~120 ℃ yerabha ye-nitrile (NBR), -30~180 ℃ yerabha ye-acrylic (ACM), kanye -25~300 ℃ ye-fluororubber (FPM).

7.Izidingo zokudizayina zamashafu nezimbotshana ezihambisanayo

Idizayini ye-shaft:

1. Ukumatsheka kobuso, ngenxa yomehluko wejubane le-shaft kanye nevolumu kawoyela, ngokuvamile kungathinta ukuvuza kwe-oyili ye-seal kanye nokuguga uma ukugoqa kwe-shaft kukukhulu kakhulu noma kukuncane kakhulu.Ibanga elivumelekile lokuma okungaphezulu kwe-shaft ngu-Rz1.0~5.0 μ M;I-Ra0.2 ~ 0.8 μ M. Thatha ama-seals kawoyela angu-2.5-1.6 we-shaft ejikelezayo μ MRz.

2. Ukuqina, ubulukhuni bobuso bomgodi ojikelezayo ngokuvamile kuthathwa ngokuthi ≥ 35HRC.Lapho i-medium ingcolile, kuba khona ukungcola okuvela ngaphandle, noma isivinini se-shaft surface singaphezulu kuka-12m/s, ukuqina kwe-shaft kufanele kube ngaphezu kuka-55HRC, futhi ukujula kongqimba lokucisha endaweni ye-shaft kufanele kube>>0.2 mm.

3. I-chamfer enconyiwe ye-shaft iphakathi kuka-15 ° no-30 °, ukuze kuqinisekiswe ukuthi uphawu lwamafutha lufakwe ngempela ngaphandle kokulimaza udebe lwe-oil seal.

4. Ukucutshungulwa kwe-shaft kanye nokucutshungulwa okufanele kwe-shaft yizici ezinqumayo zokuqinisekisa ukusebenza okuvamile kwesistimu yokuvala uphawu.Indlela efanelekile yokucubungula i-oil seal shaft ukuhlinzeka ngokunemba kokugaya ngokuvundlile nokuyipholisha ngephepha le-emery.Izindlela zokucubungula ezingafanelekile ukucutshungulwa okunembayo, ukunemba okuphezulu, ukugoqa, kanye nokupholishwa kwe-sandpaper yedayimane ku-lathe (i-sandpaper ipholishwa nge-axial movement).

5. Impahla ye-shaft ngokuyinhloko iyinsimbi evamile ye-carbon structural, njenge-C35 ne-C45, kanye ne-cast iron, i-ceramics, ne-resin plastic.Nokho, ukubekwa uphawu kophawu lukawoyela ezintweni ezintathu zokugcina ze-shaft kunamaphutha.

1. Inani le-chamfer elinconywayo lokufaka ngu-15 °~30 °.

2. Izinto zekamelo ziyinsimbi noma insimbi ekhonjiwe, futhi kuyamukeleka ukusebenzisa uphawu lwamafutha ngerabha noma i-circumference yangaphandle yensimbi.Ngokuvamile, ama-alloys alula nama-resin ane-coefficient ephezulu yokunwetshwa kwe-thermal, okwenza kufaneleke ukusebenzisa izimpawu zikawoyela ezinerabha ezizungezile.

3. Izakhiwo ze-cavity ezingafanelekile, njengalezo ezicutshungulwa ngokugxivizwa, lezo ezifakwe nezinhlanganisela ezinezintambo, kanye nalezo ezinezimbobo ezihlukene.

8.Ukufakwa kophawu lwamafutha

I-1.Ngaphambi kokufakwa, uphawu lwamafutha kufanele luboshwe ngokufanele nge-lithium ester equkethe i-molybdenum disulfide phakathi kwezindebe ukuvimbela ukugqoka okomile ezindebeni lapho i-shaft iqala ngaso leso sikhathi, ethinta ukuphazanyiswa kwezindebe.Umhlangano kufanele wenziwe ngokushesha ngangokunokwenzeka.Uma isihlalo se-oil seal singafakwanga ngokushesha, kunconywa ukuthi usimboze ngendwangu ukuvimbela izinto zangaphandle ekubambeleleni ku-oil seal.Izandla noma amathuluzi asetshenziselwa ukufaka amafutha e-lithium kumele ahlanzeke.(Sincoma ukuthi unake i-akhawunti esemthethweni ethi "Mechanical Engineer" ukuze ubambe ulwazi lwezimpahla ezomile nolwazi lwemboni ngesikhathi sokuqala)

2. Uphawu lwamafutha kufanele lufakwe flat ngaphandle kokutshekisa.Kunconywa ukusebenzisa imishini ye-hydraulic noma amathuluzi emikhono ukuze kufakwe.Ukucindezela akufanele kube phezulu kakhulu, futhi isivinini kufanele sibe ngokufanayo futhi sihambe kancane.

3. Uma ufaka uphawu lwamafutha, uwoyela noma uwoyela wokugcoba kufanele usetshenziswe futhi umkhawulo we-shaft nehlombe kufanele uhlanganiswe.

4.Uma ufaka uphawu lwamafutha, qiniseka ukuthi ubheke ekugcineni komlomo ohlangothini lwamafutha avaliwe, futhi ugweme ukuhlangana okuphambene.

5. Uma ufaka uphawu lwamafutha emgodini wesihlalo, amathuluzi akhethekile kufanele asetshenziselwe ukuwuphusha ukuze kuvinjelwe ukuchezuka.

6. Izinyathelo ezihlukahlukene kufanele zithathwe ukuze kuvinjelwe ukulimala kwezindebe ezintanjeni, kokhiye, kuma-splines, njll. lapho udebe lophawu lwamafutha ludlula khona, futhi amathuluzi akhethekile kufanele asetshenziselwe ukuhlanganisa.

7. Uma uqaqa uphawu lwamafutha, gwema ukulimaza indawo engaphakathi kwe-cavity kanye nobuso be-shaft.

8. Isigxivizo sikawoyela esisetshenzisiwe, ngisho noma sibukeka kahle, angeke sisasetshenziswa futhi kufanele sifakwe esisha.

9. Uma kukhona imihuzuko noma ukugqwala ebusweni be-shaft, kufanele kulungiswe.

Uma ufaka uphawu olusha lwamafutha, ukuze ugcine kude nendawo yokuthinta izindebe ezindala, i-gasket kufanele isetshenziselwe ukugwema izimpawu zokuqala zokungqubuzana.

uwoyela uphawu isiqondiso ukufakwa

9.Ithebula lesayizi le-TC oil seal, SC oil seal, A oil seal, AS seal kawoyela.