chii chisimbiso chemafuta uye ndeupi musiyano uripo pakati peTC mafuta chisimbiso, TB mafuta chisimbiso, TA mafuta chisimbiso?

Mushini unogadzira mafuta seal

• TC ndiyo nzira yekumiririra yezviyero zvitsva zvenyika.

Japan, Taiwan nedzimwe nzvimbo.FB ndiyo nzira yekumiririra yechiyero chenyika chekare, chine chimiro chakafanana uye zvirimo.Saizvozvo, mazhinji eEuropean zviyero anoshandisa AS kumiririra TC uye FB zvisimbiso zvemafuta.Izvo zviyero zveFB neFC ndezve GB10708.3-189.TC ndiyo nzira yekumiririra yezviyero zvitsva zvenyika, Japan, Taiwan, nedzimwe nzvimbo.TC oiri chisimbiso chinhu chemuchina chinoshandiswa kunama oiri (oiri ndiyo inonyanya kufarirwa mvura mumasisitimu ekutapurirana, zvakare inowanzonzi sechinhu chakajairika chemvura).

(1).FB ndiyo nzira yekumiririra yechiyero chenyika chekare, chine chimiro chakafanana uye zvirimo.

(2).Mazhinji emukati mwero muEurope anoshandisa AS mafuta chisimbiso kumiririra TC uye FB zvisimbiso zvemafuta.

Mafuta zvisimbiso anoshandiswa zvakanyanya munzvimbo dzakasiyana dzemaindasitiri, kunyanya mumichina yemagetsi senge hydraulic masisitimu, injini, pombi, magiya mabhokisi, michina yekufambisa, uye mota.Ivo vanobatsira kuchengetedza zvakajairwa kushanda kwemichina yemidziyo, kuwedzera hupenyu hwesevhisi yemidziyo, kuderedza mari yekugadzirisa, uye kuve nechokwadi chekushanda kwakanaka kwemidziyo.

Magadzirirwo uye kusarudzwa kwezvisimbiso zvemafuta kunofanirwa kufunga nezvezvinhu zvakawanda, zvinosanganisira nharaunda yekushanda, rudzi rwemvura, tembiricha yemhando, zvinodikanwa zvekumanikidza, zvinodikanwa zvekumhanya, etc. Mhando dzakasiyana dzezvisimbiso zvemafuta dzakakodzerwa nemamiriro akasiyana ekushandisa.Mhando dzakajairika dzezvisimbiso zvemafuta dzinosanganisira rotary shaft seals, piston seals, static seals, etc. Zvisimbiso zvemafuta zvinowanzova nemiromo yemukati nekunze, ine muromo wemukati zvakasimba kupikisa shaft inotenderera uye muromo wekunze zvakasimba kune zvakagadziriswa zvikamu.Izvi zvinogadzira chisimbiso chekuvhara nekuda kwekukakavadzana pakati pemiromo yemukati nekunze panguva yekushanda kweshaft inotenderera.

Muchidimbu, zvisimbiso zvemafuta zvinotora basa rakakosha muminda yakaita semichina yeinjiniya, mota, uye zvishandiso zvemaindasitiri, kuve nechokwadi chekushanda kwakajairika kwemichina, kudzivirira kubuda kwemvura uye kusvibiswa kwekunze kupinda, nekudaro kuve nechokwadi chekugadzikana, kuchengetedzeka, uye kuita nemazvo midziyo.

1.Oil chisimbiso chinomiririra nzira

Nzira dzakafanana dzekumiririra:

Oil chisimbiso mhando - yemukati dhayamita - kunze dhayamita - kureba - zvinhu

Semuenzaniso, TC40 * 62 * 12-NBR inomiririra kaviri miromo yemukati skeleton mafuta chisimbiso chine dhayamita yemukati ye40, dhayamita rekunze re62, ukobvu hwegumi nemaviri, uye zvinhu zvenitrile rubhi.

2.Material yemafuta chisimbiso

Nitrile rubber (NBR): kusapfeka-kusagadzikana, mafuta anodzivirira (haagone kushandiswa mune polar media), tembiricha kuramba: -40 ~ 120 ℃.

Hydrogenated nitrile rubber (HNBR): Pfekai kuramba, mafuta kuramba, kuramba kuchembera, tembiricha kuramba: -40 ~ 200 ℃ (yakasimba kupfuura NBR tembiricha kuramba).

Fluorine adhesive (FKM): asidhi uye alkali inodzivirira, mafuta anodzivirira (ese anopokana nemafuta), anodzivirira tembiricha: -20 ~ 300 ℃ (kupokana kwemafuta kuri nani pane maviri ari pamusoro).

Polyurethane rubber (TPU): Pfeka kuramba, kuchembera kuramba, tembiricha kuramba: -20 ~ 250 ℃ (yakanakisa kuchembera kuramba).

Silicone rabha (PMQ): inodzivirira kupisa, isingatonhore, diki compression set, yakaderera mechanical simba, tembiricha kuramba: -60 ~ 250 ℃ (yakanakisa tembiricha kuramba).

Polytetrafluoroethylene (PTFE): Kugadzikana kwakanaka kwemakemikari, kuramba kune akasiyana midhiya akadai seasidhi uye alkali, mafuta, kupfeka kuramba, kupisa kwekushisa kwepamusoro, kusimba kwemagetsi, uye kuzvidzora kwakanaka.

Kazhinji kutaura, zvinhu zvinowanzo shandiswa skeleton mafuta seals nitrile rabha, fluororubber, silicone rabha, uye polytetrafluoroethylene.Nekuda kwekuzvigadzika kwayo kwakanaka, kunyanya kana yawedzerwa nebhuronzi, ine mhedzisiro iri nani, uye ese anoshandiswa kugadzira zvindori zvekuchengeta, zvindori zveGly, uye Stuart seals.

Kusiyanisa muenzaniso we skeleton mafuta chisimbiso

Iyo C-mhando skeleton mafuta chisimbiso inogona kupatsanurwa mumhando shanu: SC mhando, TC mhando, VC mhando, KC mhando, uye DC mhando.Iwo ari single lip yemukati skeleton mafuta chisimbiso, kaviri lip yemukati skeleton mafuta chisimbiso, single lip chitubu chemukati skeleton mafuta chisimbiso, kaviri lip chitubu chemukati skeleton mafuta chisimbiso, uye kaviri lip chitubu chemukati skeleton mafuta chisimbiso.(Tinokurudzira kuti uteerere kune "Mechanical Injiniya" account yepamutemo kuti ubate zvinhu zvakaoma ruzivo uye ruzivo rweindasitiri panguva yekutanga)

Iyo G-type skeleton oil seal ine shinda ine shinda kunze, yakafanana neC-mhando.Inongogadziriswa chete kuti ive ne threaded shape kunze maererano nekombikinoroji, yakafanana nekushanda kweO-ring, iyo isingangosimbisi chisimbiso chekuita asiwo inogadzirisa chisimbiso chemafuta pasina kusunungura.

Iyo B-mhando skeleton mafuta chisimbiso ine inonamira padivi remukati re skeleton kana kuti hapana chinonamira pamativi ese eskeleton.Kusavapo kwekunamatira kuchavandudza kupisa kwekupisa.

Iyo A-mhando skeleton mafuta chisimbiso chisimbiso chemafuta chakafanogadzirwa chine chimiro chakaomarara kana chichienzaniswa nemhando nhatu dziri pamusoro, dzinoratidzwa nekuita zvirinani uye nepamusoro-soro.

3.Vose vane marudzi akasiyana-siyana ezvisimbiso zvemafuta uye vanonzi sezvisimbiso zvechinangwa chemafuta sezvinotevera:

4.Kuisa Chisimbiso Nheyo uye Kushandiswa kweOiri Chisimbiso

Iyo skeleton mafuta seal yakakamurwa kuita zvikamu zvitatu: self tightening spring, sealing body, nekusimbisa skeleton.The sealing principle of skeleton oil seal: Nekuda kwekuvapo kwefirimu remafuta rinodzorwa nechisimbiso chemafuta pakati pechisimbiso chemafuta uye shaft. , iyi firimu yemafuta ine fluid lubrication maitiro.Kuisa chisimbiso chekuongorora: Pasi pechiito che skeleton mafuta chisimbiso, kuomarara kwefirimu remafuta kunonyatso kuumba crescent surface pamucheto wekubatana pakati pefirimu remafuta nemhepo, kudzivirira kubuda kwemhepo. kushanda svikiro uye kuwana chisimbiso cheshaft inotenderera.Kugona kuvhara kwechisimbiso chemafuta kunoenderana nehupamhi hwefirimu yemafuta panzvimbo yekuvhara.Kana ukobvu hwakanyanya, chisimbiso chemafuta chinodonha;Kana ukobvu hwakanyanya kudiki, kukakavara kwakaoma kunogona kuitika, zvichikonzera kupfeka pachisimbiso chemafuta uye shaft;Hapana firimu remafuta pakati pemuromo wekuvhara uye shaft, iyo inogona kukonzera kupisa uye kupfeka nyore.Naizvozvo, panguva yekumisikidza, zvinodikanwa kuisa mamwe mafuta kumhete yekuisa chisimbiso uchive nechokwadi chekuti skeleton mafuta chisimbiso chiri perpendicular kune shaft centerline.Kana iyo isiri perpendicular, iyo yekuvharisa muromo wechisimbiso chemafuta inodonha mafuta ekuzora kubva mugomba uye kukonzera yakawandisa kupera kwemuromo wekuvhara.Panguva yekushanda, mafuta ari mukati megoko anobuda zvishoma kuti aumbe panzvimbo yakavharwa.

 5. Basa re skeleton mafuta chisimbiso

Kazhinji, izvo zvinhu zvinoda lubrication muzvikamu zvekutapurirana zvakaparadzaniswa kubva kune zvinobuda zvikamu kudzivirira kuzora mafuta kubuda.Inowanzoshandiswa kutenderera shafts uye imhando yekutenderera shaft lip seal.Iyo skeleton yakafanana nesimbi mbariro mukati mekongiri chikamu, ichiita basa rekusimbisa uye ichibvumira chisimbiso chemafuta kuchengetedza chimiro chayo uye kushushikana.Zvinoenderana nerudzi rweskeleton, inogona kukamurwa kuita yemukati skeleton mafuta chisimbiso, ekunze skeleton mafuta chisimbiso, uye yemukati nekunze yakafumurwa skeleton mafuta chisimbiso.Iyo skeleton mafuta chisimbiso inogadzirwa neyemhando yepamusoro nitrile rabha uye ndiro yesimbi, ine yakagadzikana mhando uye hupenyu hurefu hwebasa.

1. Kudzivirira madhaka, huruva, unyoro, nezvimwewo kubva pakupinda muberengi kubva kunze;

2. Deredza kudonha kwemafuta ekuzora mumabearings.Chinodiwa chezvisimbiso zvemafuta ndechekuti zviyero (dhayamita yemukati, dhayamita yekunze, uye ukobvu) inofanira kuenderana nemirairo;Inoda elasticity yakakodzera kusungirira shaft uye nekupa chisimbiso mhedzisiro;Inofanira kunge isingadziviriri kupisa, isingapfekedzi, yakasimba, inopikisa midhiya (yakadai semafuta kana mvura), uye iine hupenyu hurefu hwebasa.

6.Kusarudzwa kwezvisimbiso zvemafuta

Kusarudzwa kwezvisimbiso zvemafuta kunofanirwa kuve kwakavakirwa pachisimbiso chepakati uye mamiriro ekushanda.Iyo yekuisa chisimbiso inoda kusarudza zvinhu zvechisimbiso chemafuta, uye mamiriro ekushanda anonyanya kufunga nezvekumanikidza kwekushandisa, kumhanya kwetambo yekushanda, uye tembiricha yekushanda.

Paunenge uchisarudza zvinhu zvezvisimbiso zvemafuta, zvinodikanwa kufunga nezve kuenderana kwezvinhu nepakati yekushanda, kuchinjika kune yekushanda tembiricha renji, uye kugona kwemuromo kutevedzera yakakwira-kumhanya kutenderera kweiyo shaft inotenderera.Paunenge uchishanda nechisimbiso chemafuta, tembiricha yemuromo wayo i20 ~ 50 ℃ yakakwirira kupfuura tembiricha yesvikiro rekushanda.Attention inofanira kubhadharwa pakusarudza mafuta seal materials.

Kumanikidzwa kwesevhisi kweakajairwa zvisimbiso zvemafuta kazhinji haapfuure 0.05MPa.Kana kudzvanywa kwekushanda kuchipfuura kukosha uku, chisimbiso chinopikisa mafuta chinofanirwa kusarudzwa.(Tinokurudzira kuti uteerere kune "Mechanical Injiniya" account yepamutemo kuti ubate zvinhu zvakaoma ruzivo uye ruzivo rweindasitiri panguva yekutanga)

Pasi pechimiro chakafanana chedhayamita, zvisimbiso zveoiri zvakagadzirwa nezvinhu zvakasiyana zvine hunyanzvi hwakasiyana hwekuenderana nekumhanya kwemutsara wekutenderera shaft.Iyo mutsara yekumhanya mutsara inoshandiswa pamafuta zvisimbiso kazhinji isingasviki 15m/s.

Kushanda kwechisimbiso chemafuta kunoenderana nezvinhu zvinoshandiswa: -40 ~ 120 ℃ ye nitrile rubber (NBR), -30 ~ 180 ℃ ye acrylic rubber (ACM), uye -25 ~ 300 ℃ yefluororubber (FPM).

7.Design zvinodiwa kune anowirirana shafts uye cavities

Shaft design:

1. Kushata kwepamusoro, nekuda kwekusiyana kwekumhanya kweshaft uye huwandu hwemafuta, zvinogona kukanganisa kudonha kwemafuta seal uye kupfeka kana kushata kweshaft kwakakurisa kana kudiki.Rutivi runotenderwa rwekushata kwepamusoro kweshaft Rz1.0 ~ 5.0 μ M;Ra0.2 ~ 0.8 μ M. Tora 2.5-1.6 zvisimbiso zvemafuta zvemugero unotenderera μ MRz.

2. Kuoma, kuoma kwepamusoro kweshaft inotenderera inowanzotorwa se ≥ 35HRC.Kana iyo yepakati yakasviba, pane zvinosvibisa kubva kunze, kana shaft pamusoro kumhanya i> 12m/s, kuomarara kwepamusoro kweshaft kunofanirwa kunge kuri pamusoro pe55HRC, uye kudzika kwemvura yekudzima pashaft surface kunofanira kuva>0.2 mm.

3. Iyo yakakurudzirwa chamfer ye shaft iri pakati pe15 ° uye 30 °, kuitira kuti kuve nechokwadi kuti chisimbiso chemafuta chakaiswa zvechokwadi pasina kukuvadza muromo wechisimbiso chemafuta.

4. Kugadziriswa kweshaft uye kugadziriswa kwakarurama kwegomba ndizvo zvinogadzirisa zvinhu kuti zvive nechokwadi chekushanda kwechisimbiso chekuvhara.Nzira yakakodzera yekugadzirisa shaft yechisimbiso yeoiri ndeyekupa chaiyo kukuya yakachinjika uye nekuipukuta ne emery bepa.Nzira dzisina kukodzera dzekugadzirisa machining chaiwo, machining ekupedzisira, rolling machining, uye diamond sandpaper polishing palathe (sandpaper inokwenenzverwa neaxial movement).

5. Zvinhu zveshaft zvinonyanya kujaira kabhoni structural simbi, seC35 neC45, pamwe nesimbi yakakandwa, ceramics, uye resin plastiki.Nekudaro, kuiswa chisimbiso kwechisimbiso chemafuta muzvinhu zvitatu zvekupedzisira zveshaft kune hurema.

1. Iyo yakakurudzirwa yekuisa chamfer kukosha ndeye 15 ° ~ 30 °.

2. Zvinhu zvekamuri isimbi kana simbi yakakandwa, uye zvinogamuchirwa kushandisa chisimbiso chemafuta nerabha kana simbi kunze kwedenderedzwa.Kazhinji, alloys akareruka uye resin ane yakakwira coefficient yekuwedzera kwekupisa, zvichiita kuti ive yakakodzera kushandisa zvisimbiso zvemafuta zvine rabha zvakatenderedza.

3. Zvivako zvisingakodzeri mhango, sezviya zvinogadziriswa nekutsikirira, zviya zvakaiswa nemisanganiswa ine threaded, uye zviya zvine maburi akatsemuka.

8.Kuiswa kwechisimbiso chemafuta

1.Kusati kwaiswa, chisimbiso chemafuta chinofanira kunge chakanyatsoputirwa ne lithium ester ine molybdenum disulfide pakati pemiromo kudzivirira kuoma kupfeka pamiromo apo shaft inotanga pakarepo, inokanganisa kupindira kwemiromo.Gungano rinofanira kuitwa nokukurumidza sezvinobvira.Kana chigaro chechisimbiso chemafuta chisina kuiswa pakarepo, zvinokurudzirwa kuti chifukidze nemucheka kudzivirira zvinhu zvekunze kuti zvibatanidze kune chisimbiso chemafuta.Maoko kana midziyo inoshandiswa kuisa lithium girisi inofanira kunge yakachena.(Tinokurudzira kuti uteerere kune "Mechanical Injiniya" account yepamutemo kuti ubate zvinhu zvakaoma ruzivo uye ruzivo rweindasitiri panguva yekutanga)

2. Chisimbiso chemafuta chinofanira kuiswa chakatsetseka pasina kutenderera.Inokurudzirwa kushandisa hydraulic midziyo kana sleeve zvishandiso zvekuisa.Kumanikidzwa hakufaniri kunge kwakanyanyisa, uye kukurumidza kunofanira kuva yunifomu uye kunonoka.

3. Paunenge uchiisa chisimbiso chemafuta, mafuta kana mafuta ekuzora anofanira kushandiswa uye shaft yekupedzisira uye pfudzi zvinofanira kutenderedzwa.

4.Paunenge uchiisa chisimbiso chemafuta, iva nechokwadi chekutarisana nemuromo wemuromo wakananga kune rumwe rutivi rwemafuta akavharidzirwa, uye udzivise reverse assembly.

5. Pakuisa chisimbiso chemafuta mugomba rechigaro, maturusi akakosha anofanirwa kushandiswa kuisundira mukati kudzivirira kutsauka.

6. Matanho akasiyana-siyana anofanirwa kutorwa kudzivirira kukuvara kwemiromo pashinda, keyways, splines, nezvimwewo apo muromo wechisimbiso chemafuta unopfuura, uye zvishandiso zvakakosha zvinofanira kushandiswa pakuungana.

7. Paunenge uchiparadzanisa chisimbiso chemafuta, dzivisa kukuvadza nzvimbo mukati memugodhi uye pamusoro pehuputi.

8. Chisimbiso chemafuta chakashandiswa, kunyange kana chine chimiro chakanaka, hachigoni kushandiswa zvakare uye chinofanira kuchinjwa nechitsva.

9. Kana pane zvigwere kana kuti ngura pamusoro pepamusoro pe shaft, inofanira kugadziriswa.

Paunenge uchiisa chisimbiso chitsva chemafuta, kuitira kuti uchengetedze kure nenzvimbo yekare yemuromo, gasket inofanira kushandiswa kudzivisa zviratidzo zvepakutanga.

mafuta seal direction yekuisa

9.Tafura yehukuru yeTC mafuta chisimbiso, SC chisimbiso chemafuta, Chisimbiso chemafuta, AS chisimbiso chemafuta.