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Menene turbo bearings? Nau'in turbocharged bearings

Turbo-bearingshine abin da ke cikin turbocharger, domin mu fahimci turbocharger, da farko muna buƙatar sanin turbocharger da sassanta masu motsi.

 

Menene turbocharger?

Turbocharger, wanda muke samu a motoci, a zahiri matse iska ne wanda ke matse iska don ƙara yawan iskar da ke shiga. Yana amfani da iskar gas mai shiga da injin ya fitar don tura turbine a cikin ɗakin turbine, kuma turbine yana tuƙa coaxial impeller, kuma impeller yana matsa iskar da bututun tace iska ke aikawa don matse ta cikin silinda. Lokacin da saurin injin ya ƙaru, saurin fitar da iskar gas mai fita da saurin turbine suma suna ƙaruwa a lokaci guda, impeller yana matse iska mai shiga cikin silinda, matsin lamba da yawan iska na iya ƙona ƙarin mai, ƙara yawan mai da daidaita saurin injin, za ku iya ƙara ƙarfin fitarwa na injin.

 

Menene sassan motsi na turbocharger?

Sassan da ke motsi na turbocharger suma su ne ainihin sassan - ƙafafun turbine, impeller na compressor da shaft na rotor, da kuma gidan supercharger suna da motsi mai sauri, wanda ba za a iya jurewa ba ga bearings na yau da kullun, don haka ɗaukar nauyin supercharger wani abu ne na musamman mai iyo.

 

A zahiri zobe ne na tagulla wanda aka yi masa hannu a kan sandar da kuma wurin, tare da rabe-raben da ke tsakanin zoben da sandar da kuma tsakanin zoben da wurin. Lokacin da injin ke aiki, a ƙarƙashin matsin mai, ana samar da fim ɗin mai mai biyu a cikin waɗannan sassan, kuma rotor ɗin yana shawagi a kan fim ɗin mai kuma yana juyawa da sauri sosai.

 

Saboda yawan saurin juyawa da kuma yanayin zafi mai tsanani, wannan yanki yana kuma buƙatar man shafawa da sanyaya sosai.

 

Idan ba a shafa mai sosai a cikin supercharger ba kuma aka sanyaya shi, zai haifar da lalacewar bearing ɗin ba daidai ba, zai rage tsawon lokacin aikin bearing ɗin sosai, zai ƙara gibin da ke tsakanin rotor da gidan, kuma wani ɓangare na mai zai shiga bututun shiga ko bututun hayaki daga wannan ɓangaren, wanda zai haifar da mummunan gazawar ƙona mai.

 

Nau'ikanbearings masu turbocharged

A matsayin muhimmin ɓangaren motsi na turbocharger, tsarin bearing yana da alaƙa da aminci da dorewar turbine. Akwai manyan nau'ikan bearings guda biyu na turbocharger, ɗaya shine bearings masu iyo ɗayan kuma bearings ne masu ƙwallo.

 

A halin yanzu, yawancin manyan masana'antun motoci suna amfani da bearings masu iyo, waɗanda ya kamata su kasance masu ɗorewa kuma masu araha. Bearings masu iyo a zahiri zobe ne a kan shaft, kuma akwai rata tsakanin zobe da shaft da kuma tsakanin zobe da shaft, wanda ke samar da fim mai mai biyu. Zoben yana shawagi tsakanin shaft da shaft. Gabaɗaya, rata tsakanin shaft da shaft yana da kusan 0.05mm, kuma rata ta waje ta shafi kusan 0.1mm. Kauri na bango na bearings yana da kusan 3.0-4.5mm, kuma an yi shi da ƙarfe mai tagulla mai launin tin, kuma saman bearings an rufe shi da wani Layer na ƙarfe mai launin lead-tin ko ƙarfe mai kauri kusan 0.005-0.008mm. Lokacin da babban caji ke aiki, bearings yana juyawa tsakanin shaft da shaft. Saboda haka, za mu iya gano rashin amfanin bearings masu iyo: juriya mai yawa na shafts masu turbine, matsin lamba mai yawa da buƙatun inganci, da kuma rashin daidaituwar iko na shafts masu turbine.

 

Ana samun bearings na ball a cikin motocin aiki, kuma kamar yadda sunan ya nuna, bearings na ball sune matsayin sanya balls a kan shaft ɗin turbine don maye gurbin mai a cikin bearings masu iyo. Fa'idar bearings na ball shine akasin bearings masu iyo: ƙarancin gogayya, ƙarancin hysteresis na turbine, kuma mafi dacewa don matsa iyakokin motsi; Ana iya sarrafa yanayin motsi na shaft ɗin turbine yadda ya kamata; Ana iya rage matsin lamba da ingancin mai kaɗan, wanda ke ƙara tsawon rayuwar turbine a kaikaice. Kurakuransa kuma a bayyane suke, wato, rayuwar ba ta yi kyau kamar bearings masu iyo ba, gabaɗaya kilomita 70,000 zuwa 80,000 zuwa iyakar rayuwa, kuma farashin kulawa yana da tsada, kulawa yana da wahala. Duk da haka, saboda jan hankalin bearings na ball dangane da ƙarfi, har yanzu su ne kayan aiki na yau da kullun akan motocin aiki.