Kutanga, chimiro chekutanga chekutakura
Iko kuumbwa kwekutanga kwekubereka: mhete yemukati, mhete yekunze, muviri unotenderera, cage
Mhete yemukati: kazhinji yakanyatsoenderana ne shaft, uye tenderera pamwe chete.
Mhete yekunze: kazhinji ine shanduko yechigaro chekutakura, kunyanya kutsigira mhedzisiro.
Mhete yemukati neyekunze ine simbi GCr15, uye kuoma mushure mekupisa kupisa ndeye HRC60 ~ 64.
Rolling element: nenzira yekeji yakarongeka yakarongeka mukati memhete yemukati uye yekunze mhete mugero, chimiro chayo, saizi, nhamba inokanganisa zvakananga kutakura mutoro uye kuita.
Cage: Pamusoro pekuparadzanisa zvakaenzana chinhu chinotenderedza, inotungamirawo kutenderera kwechinhu chinotenderedza uye zvinobudirira inovandudza yemukati lubrication kuita kwebearing.
Bhora resimbi: Izvo zvinhu zvinowanzo bereka simbi GCr15, uye kuoma mushure mekupisa kurapwa ndeye HRC61 ~ 66.Giredhi rechokwadi rakakamurwa kuita G (3, 5, 10, 16, 20, 24, 28, 40, 60, 100, 200) kubva kumusoro kusvika pasi zvichienderana nedimensional kushivirira, kushivirira kwechimiro, kukosha kwegeji uye kushata kwepamusoro.
Kune zvakare yebetsero yekutakura chimiro
Dust cover (sealing ring): kudzivirira zvinhu zvekunze kuti zvipinde pabearing.
Gira: zora, kuderedza vibration uye ruzha, tora kupisa kwekukwevera, kuwedzera kubereka nguva yebasa.
Chechipiri, kupatsanurwa kwemabheya
Zvinoenderana nekukweshana kwezvinhu zvezvinhu zvinofamba zvakasiyana, mabearings anogona kupatsanurwa kuita rolling bearings uye rolling bearings mapoka maviri.Mukukunguruka, anonyanya kuzivikanwa ndeakadzika groove bhora mabearings, cylindrical roller mabearings uye thrust ball bearings.
Deep groove bhora mabearings anonyanya kutakura radial mitoro, uye anogona zvakare kutakura radial mitoro uye axial mitoro pamwechete.Kana chete radial mutoro uchiiswa, iyo yekubata Angle i zero.Kana iyo yakadzika groove bhora inotakura ine yakawandisa radial clearance, ine kuita kweangular yekubata inotakura uye inogona kumira yakawandisa axial mutoro, friction coefficient yeyakadzika groove bhora inotakura idiki, uye muganho wekutenderera kumhanya zvakare wakakwira.
Deep groove ball bearings ndiwo anofananidzira kukunguruka ane huwandu hwakawanda hwekushandisa.Inokodzera kutenderera-kumhanya uye kunyange yakanyanya-kumhanya kutenderera kutenderera, uye inogara yakasimba uye haidi kugara ichigadziriswa.Rudzi urwu rwekubereka rune diki friction coefficient, yakakwira muganho kumhanya, yakapusa chimiro, yakaderera mutengo wekugadzira uye nyore kuwana yakakwirira kugadzira kwayo.Saizi yemhando uye shanduko yemamiriro ezvinhu, anoshandiswa mune chaiyo zviridzwa, yakaderera ruzha mota, mota, midhudhudhu uye kazhinji michina uye mamwe maindasitiri, ndiyo yakajairika mhando yemakina engineering mabearings.Kunyanya kutakura radial mutoro, inogona zvakare kutakura imwe huwandu hweaxial mutoro.
Cylindrical roller bearing, muviri unomonereka ndiyo centripetal rolling bearing yecylindrical roller bearing.Cylindrical roller bearing uye raceway ndiwo mutsara wekusangana mabhengi.Huru hwekutakura huwandu, kunyanya kutakura radial mutoro.Iko kukakavara pakati peiyo rolling element uye rim remhete idiki, iyo yakakodzera kukurumidza-kumhanya kushanda.Zvinoenderana nekuti mhete ine flange, inogona kukamurwa kuita NU\NJ\NUP\N\NF uye mamwe mabhengi ane mutsara mumwe, uye NNU\NN uye mamwe maviri-mutsara mabhengi.
A cylindrical roller inotakura nemhete yemukati kana yekunze isina mbabvu, iyo mhete dzemukati nekunze dzinokwanisa kufamba dzichienderana kune mumwe nemumwe axially uye saka inogona kushandiswa seyemahara-yekupedzisira.Rumwe rutivi rwechindori chemukati uye mhete yekunze ine mbabvu mbiri, uye rumwe rutivi rwemhete ine cylindrical roller inotakura nembabvu imwe chete, iyo inogona kumira axial mutoro mune imwe nzira kune imwe nhanho.Simbi mapepa matanga anowanzo shandiswa, kana matanga akasimba akagadzirwa nemhangura alloy.Asi vamwe vavo vanoshandisa polyamide kugadzira makeji.
Trust ball bearings akagadzirirwa kutsungirira mitoro yekukanda panguva yekumhanya-mhanya uye inoumbwa nemhete dzegasket dzine mujaho wekutenderedza bhora.Nekuti iyo mhete ndiyo yechigaro padhi chimiro, bhora rekusimudzira rakakamurwa kuita mhando mbiri: flat base pad mhando uye kurongedza spherical chigaro rudzi.Mukuwedzera, mabheji akadaro anogona kumira axial mitoro, asi kwete radial mitoro.
Iyo yekurovera bhora ine ring yechigaro, shaft ring uye simbi bhora keji musangano.Mhete yeshaft inoenderana neshaft, uye mhete yechigaro ichienderana negoko.Thrust ball bearings akakodzera chete kutakura chikamu cheaxial load, low speed parts, senge crane hooks, vertical pumps, vertical centrifuges, jacks, low speed retarders, etc. Mhete ye shaft, mhete yechigaro uye muviri unotenderera webheya. zvakapatsanurwa uye zvinogona kuiswa uye kupatsanurwa zvakasiyana.
Chetatu, kukunguruka kubereka hupenyu
(1) Mamiriro makuru ekukuvadza emabhengi ekutenderera
Fatigue spalling:
Mukutenderedza mabheji, kutakura mutoro uye hukama hwekufamba kweiyo yekubata kumeso (mujaho kana kutenderedza muviri pamusoro), nekuda kwekuenderera mberi kwemutoro, yekutanga pasi pevhu, kudzika kunoenderana, iyo isina kusimba chikamu chekutsemuka, uyezve kusimudzira kusvika kune kusangana nepamusoro, kuitira kuti iyo yepamusoro simbi inoputika kunze, zvichiita kuti kubereka hakugone kushanda zvakanaka, chiitiko ichi chinonzi kuneta spalling.Iyo yekupedzisira kuneta spalling yekutenderedza mabhengi kwakaoma kudzivirira, kutaura zvazviri, mune yakajairwa kuisirwa, lubrication uye kuisa chisimbiso, yakawanda yekutakura kukuvara kukuvara kwekuneta.Naizvozvo, hupenyu hwebasa hwemabheya hunowanzo kunzi hupenyu hwekuneta hwebasa remabheya.
Plastic deformation (permanent deformation):
Kana iyo yekutenderedza ichiiswa pasi pemutoro wakawandisa, deformation yepurasitiki inokonzereswa mumuviri unotenderedza uye kutenderedza kune iyo yekubata, uye kutenderedza kumusoro kwepamusoro kunoburitsa dent, zvichikonzera kuzunguza kwakanyanya uye ruzha panguva yekumhanya kweberero.Pamusoro pezvo, zvimedu zvekunze zvekunze mukati mekutakura, kuwedzeredza kukonzeresa, kana kutakura kwakamira, nekuda kwemuchina vibration uye zvimwe zvinhu zvinogona kuburitsa indentation munzvimbo yekubata.
Kupfeka uye kubvarura:
Nekuda kwekufamba kwehukama kwechinhu chinotenderedza uye nhangemutange uye kupinda kwetsvina neguruva, kukunguruka chinhu uye kuumburuka kumusoro kunokonzera kupera.Kana huwandu hwekupfeka hwakakura, kutakura kubvumidzwa, ruzha uye kudengenyeka kunowedzera, uye kumhanyisa kwekuita kwekutakura kunoderedzwa, saka zvinokanganisa zvakananga kurongeka kweimwe injini huru.
Chechina, kubereka kurongeka uye nzira yekumiririra ruzha
Kurongeka kwemabhengi ekukunguruka kwakakamurwa kuita dimensional kurongeka uye kutenderera chaiko.Iyo chaiyo nhanho yakamisikidzwa uye yakakamurwa kuita nhanho shanu: P0, P6, P5, P4 uye P2.Kururama kwakagadziridzwa kubva padanho 0, maererano nekushandiswa kwechinyakare kweyero 0 yakakwana, zvichienderana nemamiriro akasiyana kana zviitiko, nhanho inodiwa yekururama haina kufanana.
Mishanu, inowanzo bvunzwa ine mibvunzo
(1) Kutakura simbi
Inowanzo shandiswa mhando dzesimbi inomonereka: yakakwirira kabhoni yakaoma inotakura simbi, carburized inotakura simbi, ngura isingaite inotakura simbi, tembiricha ine simbi.
(2) Lubrication yemabhengi mushure mekuiswa
Lubrication yakakamurwa kuva marudzi matatu: girisi, mafuta ekuzora, kugadzika kwakasimba
Kuzora kunogona kuita kuti kutakura kumhanye zvakajairwa, kudzivirira kusangana pakati pemujaho uye kutenderedza pamusoro, kuderedza kukwenya uye kupfeka mukati mekutakura, uye kugadzirisa nguva yebasa rekutakura.Girisi ine yakanaka kunamatira uye kupfeka kuramba uye tembiricha kuramba, izvo zvinogona kuvandudza oxidation kuramba kweyepamusoro tembiricha mabhengi uye kuwedzera hupenyu hwebasa remabheri.Iyo girisi mukutakura haifaniri kunge yakawandisa, uye mafuta akawandisa achave anopesana.Iyo yakakwirira kumhanya kwekutakura, kunowedzera kukuvadza.Ichaita kuti kubereka mukushanda kana kupisa kwakakura, zvichava nyore kukuvara nekuda kwekupisa kwakanyanya.Naizvozvo, zvinonyanya kukosha kuzadza girisi nesainzi.
Nhanhatu, iine zvidziviriro zvekuisa
Usati waiswa, teerera kuti uone kana paine dambudziko nemhando yekutakura, sarudza nenzira kwayo chinoenderana chekuisa chishandiso, uye teerera kune kuchena kweiyo fani paunoisa fani.Teerera kunyange kumanikidza kana uchibaya, uchibaya zvinyoro nyoro.Tarisa uone kana mabearings akaiswa zvakanaka mushure mekuiswa.Yeuka, basa rekugadzirira risati rapera, usasunungura bhegi kudzivirira kusvibiswa.
Nguva yekutumira: Sep-12-2023