Bearing system kuvimbika inogara iri nyaya inopisa mune zvigadzirwa zvemagetsi mota.Takataura zvakawanda munyaya dzakapfuura, dzakadai sekutakura matambudziko ekurira, matambudziko ezvino shaft, kutakura matambudziko ekupisa uye zvichingodaro.Chinangwa chechinyorwa ichi ndiko kubvumidzwa kweiyo mota inotakura, ndiko kuti, pasi peichi chibvumirano chekutaura kunobata kunoshanda zvakanyanya.
Kuti bhanhire rishande zvakanaka, radial clearance yakakosha.General misimboti yekutonga uye kugona: Iyo yekushanda clearance yemabhengi ebhora inofanira kunge iri zero, kana kuve nekushomeka preload.Nekudaro, kune mabhengi akadai sema cylindrical rollers uye spherical rollers, imwe chiyero chekusiya yakasara inofanira kusiiwa panguva yekushanda, kunyangwe iri diki clearance.
Zvichienderana nechikumbiro, chibvumirano chakanaka kana chisina kunaka chekushanda chinodiwa muhutano hwekubereka.Muzviitiko zvakawanda, kushandiswa kwekushanda kunofanira kuva yakakosha kukosha, ndiko kuti, kana kutakura kuri kushanda, pane imwe nzvimbo yakasara.Nekune rimwe divi, kune akawanda maapplication anoda kubvumidzwa kwakashata - kureva preload.
Iyo preload inowanzo gadziridzwa panguva yekumisikidza pane ambient tembiricha (kureva, inopedzwa panguva yekugadzira uye nhanho dzekugadzira mota).Kana kutonhora kuchikwira kweshaft yakakura kudarika yechigaro chekutakura panguva yekushanda, preload inowedzera.
Kana iyo shaft ichipisa uye ichiwedzerwa, dhayamita ye shaft ichawedzera uye ichawedzerawo.Pasi pesimba rekuwedzera kweradial, iyo radial clearance yekubereka ichaderera, ndiko kuti, preload ichawedzera.Pasi pesimba rekuwedzera kweaxial, iyo preload ichawedzerwa zvakare, asi preload yekumashure-kumashure-kumashure kutakura gadziriro ichaderedzwa.Mugadziriro yekudzokera kumashure-kumashure, kana paine chinhambwe chakapihwa pakati pemabheya uye mabheya uye zvikamu zvine hukama zvine coefficient yakafanana yekuwedzera kwekupisa, mhedzisiro yekuwedzera kweradial uye axial kuwedzera pane preload ichadzima mumwe nemumwe kunze, saka. preload haizoitike Kusiyana.
Iwo akanyanya kukosha mabasa ekutakura preload anosanganisira: kuvandudza kuomarara, kuderedza ruzha, kuvandudza kurongeka kwekutungamira shaft, kubhadhara kupfeka panguva yekushanda, kurebesa hupenyu hwekushanda, nekuvandudza kusimba.Kuomarara kwebearing ndiko kuenzana kwesimba rinoshanda pabearing kusvika pakureruka kwayo.Iyo elastic deformation inokonzerwa nemutoro mukati mehumwe huwandu hweiyo preloaded kutakura idiki pane iyo yekutakura isina preload.
Iyo diki iyo yekushanda clearance yekutakura, zviri nani kutungamira kwezvinhu zvinotenderedza munzvimbo isina-mutoro uye kudzikisa ruzha rwekutakura panguva yekushanda. kuderedzwa, saka kurongeka kwekutungamira kwe shaft kunogona kuvandudzwa.Semuyenzaniso, pinion giya mabhengi uye akasiyana giya mabheji anogona kutakurwa kare kuti avandudze kuomarara uye nemazvo ekutungamira shaft, zvichiita kuti meshing yemagiya inyatsojeka uye yakagadzikana, uye kuderedza mamwe masimba ane simba.Saka pachava neruzha rushoma panguva yekushanda, uye magiya anogona kuva nehupenyu hurefu hwekushanda.Bearings ichawedzera kubvumidzwa nekuda kwekupfeka panguva yekushanda, iyo inogona kubhadharwa ne preloading.Mune mamwe maapplication, preload yekurongeka kwekutakura kunogona kuvandudza kuvimbika kwekushanda uye kurebesa hupenyu hwesevhisi.Kurongeka kwakaringana kunogona kuita kuti kugovaniswa kwemutoro mukutakura zvakanyanya kunyange, saka inogona kuve nehupenyu hurefu hwekushanda.
Kana uchisarudza preload muhurongwa hwekubereka, zvinofanirwa kucherechedzwa kuti kana preload ichidarika imwe yakatemerwa yakakosha kukosha, kuomarara kunogona kungowedzerwa kusvika pamwero wakati.Nokuti kukakavara uye kupisa kunoguma kuchawedzera, kana pane imwezve mutoro uye inobata kwenguva yakareba, hupenyu hwekushanda hwekutakura huchaderedzwa zvikuru.
Uye zvakare, kana uchigadzirisa preload muhurongwa hwekubereka, zvisinei kuti huwandu hwe preload hunotarwa nekuverenga kana ruzivo, kutsauka kwayo kunofanirwa kudzorwa mukati mehumwe huwandu.Semuenzaniso, mukugadzirisa kwekugadzirisa mabheji e-tapered roller, kutakura kunofanira kutenderedzwa kakawanda kuti kuve nechokwadi kuti mavhiriki haana kutsvedza, uye zviso zvekupedzisira zvezviputi zvinofanira kuva nekubatana kwakanaka nembabvu dzemhete yemukati.Zvikasadaro, mibairo inowanikwa mukuwongorora kana kuyerwa haisi yechokwadi, kuitira kuti iyo chaiyo preload inogona kuve idiki pane inodiwa.
Nguva yekutumira: May-10-2023