Kupwanya kwepiston mhete ndeimwe yemhando dzakajairika dzekukuvadza kune mhete dzepiston. Kazhinji, yekutanga uye yechipiri-nzira piston zvindori zvinotapukira, uye zvikamu zvakatyoka zvakanyanya pedyo nekupindirana. Ring yepiston inogona kuputswa kuita zvidimbu zvinoverengeka, kana kuti inogona kuputsika kana kushaikwa. Mhete yepiston yakaputsika ichawedzera kupfeka kwecylinder. Mhete yakatyoka yeinjini yedhiziri ine twuviri inogona kupeperetswa mupombi yekuburitsa kana mubhokisi rekutsvaira, kana kutofuridzira kumagumo eturbocharger kukuvadza mashizha eturbine, zvichikonzera tsaona huru. Nhasi ndichakutora kuti uone kuti chii chikonzero chemhete yepiston yakaputsika ~
Zvinowanzoitika zvikonzero zvekuputsika kwepiston mhete:
Pane zvikonzero zvakawanda zvekuputsika kwepiston mhete. Pamusoro pekuremara kwezvinhu uye yakaderera kugadzirisa mhando, inonyanya kukonzerwa nekusagadzikana kwekuchengetedza uye manejimendi panguva yekushandiswa uye yakashata gungano remhando.
1. Mukaha uri pakati pemuromo idiki
Kana geji rinopindirana riri diki pane gap regungano, tembiricha yekupisa yepiston mhete inowedzera panguva yekushanda, kuitira kuti simbi iri padhuze ishaye nzvimbo yakakwana yekuwedzera, uye migumo miviri yekupindirana yakakotama uye yakatyoka padyo overlap.
2. Ring groove kabhoni dhipoziti
Kupisa kwakashata, kupisa kwemadziro ecylinder kuti oxidize kana kupisa mafuta ekuzora kunokonzera yakakomba kabhoni deposits mucylinder. Kana iyo coke deposits yakaoma, kufamba kwemhete kunovharwa, uye mhete uye cylinder rusvingo inobata zvakasimba, uye mafuta akacheneswa nesimbi machipisi anosanganiswa, uye pasi pechiito chegasi rinodonha, nzvimbo yakaoma coke deposit inosanganiswa. yakaumbwa pamucheto wezasi we ring groove. Kune emuno hard carbon deposits pasi pemhete yepiston, uye chikamu chepamusoro chinoiswa nguva nenguva gasi, zvichiita kuti mhete yepiston ityoke nekuda kwekuneta kwekukotama.
3. Cylinder liner kugaya tafura
Kufamba kwenguva refu kwekubatana kwepiston uye cylinder liner inoita kuti cylinder liner isakare uye chikuva chekukuya chinooneka pamusoro pechikamu chepamusoro che cylinder liner. Apo piston painokwira kumusoro kwakafa pakati, yekutanga piston mhete inorova tafura yekukuya uye inobatwa uye inotyoka.
4. Kunyanya kupfeka kwe ring groove
Iyo yakaderera yekupedzisira yepamusoro yegorofu yemhete inorerekera (yakaita bhosvo) mushure mekunyanyisa kupfeka. Kana piston iri pedyo nepamusoro penzvimbo yakafa, gasi rinomanikidza rinoita kuti mhete inamire kumucheto wezasi weiyo yakatenuka mhete groove, mhete yepiston inomonyoroka nekuremara, uye piston ring groove inopfekwa zvakanyanya uye kuneta nekutyoka.
5. Mhete yepiston inorembera chiteshi chemhepo
Muinjini dzedhiziri dzine mbiri, mhete yepiston inowanzobatwa mukutsvaira uye chiteshi chemagetsi chinoita kuti ringi rityoke. Nekuti mhete yepiston ine tension yakakura pane yekuvhura chikamu, kupisa deformation yakakura, uye mbabvu dziri pakati pemhepo zviteshi pacylinder liner dzinokanganiswa nyore nekupisa. Kana piston ichifamba, mhete inosangana nechiteshi chemhepo, uye mhete inotyoka chero kuvhurwa kwemhete kunobata zvishoma chiteshi chemhepo.
6. Radial kuwedzera uye chibvumirano kuneta kwepiston mhete
Kana iyo elastic simba yepiston mhete isina kukwana kana cylinder liner yanyanya kupfekwa, piston mhete uye cylinder madziro haigone kusungirirwa padhuze, ndiko kuti, kusimba kwemhepo hakugone kuchengetedzwa, kuitira kuti iyo yakanyanya kudzvanywa gasi inodonhedza mhete mukati. ring groove. Kana pisitoni ichidzika, gasi rekumanikidza muhumburumbira rinodzikira, uye mhete yepiston inoburitswa kubva mugoro remhete. Iyo piston mhete inoramba ichiwedzera uye zvibvumirano zvakanyanya, zvichikonzera kuneta uye kutsemuka.
7. Kunyanya kupfeka kwepiston ring kunoita kuti simba rering ritadze kuzadzisa zvinodiwa uye mhete inoputsika.
Ikozvino piston mhete zvinhu zvinowanzo brittle zvinhu senge grey cast iron, alloy cast iron, ductile iron, uye chimiro chemukati chinogona kunge chine porosity, kutsemuka kana kupatsanurwa kwezvikamu panguva yekukanda, izvo zvinogona kukonzera simba renzvimbo kudonha kana kushushikana. pakatsemuka, zvichikonzera kuvhunduka panguva yebasa Kutsemuka kana kuneta kutyoka.
8. Kupfeka kwakakomba kwecylinder liner
Kupfeka kwakatsika kumusoro uye pasi kwakafa nzvimbo yepakati kunokonzeresa mapendekete, kupfeka kukuru pamucheto mukuru wetambo yekubatanidza kana shanduko munzvimbo yepakutanga yepakati yakafa mushure mekunge migumo mikuru nediki yetambo yekubatanidza yagadziriswa, zvichikonzera kukanganisa uye kutyoka. mhete pasi pechiito chesimba risina simba .
9. Dambudziko rekubatana pakati pemafuta ekuzora nemafuta
Kubva pakuongororwa kwemhando yemafuta, mamwe mafuta ane sulfuri yakakwira, semafuta eReye's 1000s. Naizvozvo, kana mafuta achipisa, mamwe SO2 uye SO3 anogadzirwa. Zvisinei, SO2 neSO3 dzine gasi pakupisa kwepamusoro, uye kusangana kwavo kwakananga nesimbi kunogona kukonzera gasi kuora. Inosimudzirawo kuomeswa kwekabhoni deposits uye colloidal deposits, izvo zvinowedzera kupfekwa kwemacylinder liners uye piston mhete. Zvinoenderana nezvinodiwa, kana injini dzedhiziri dzichishandisa mafuta akanyanya-sarufa, mafuta akasimba kana akakwira alkaline yakakosha yekuzora inofanira kushandiswa. Kana injini huru ikasashandisa humburumbira oiri inofanana nemafuta kana kutsiva oiri yecylinder neoiri yeinjini. Nenzira iyi, kugona kweoiri yekuzora kuita kuti asidhi inokonzerwa nekupisa iite zvishoma, zvichiita kuti iyo acidic iparadze piston uye piston mhete zvakanyanya, zvichikonzera kutsemuka kwepiston nguva nenguva.
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Emergency kurapwa nzira yeyakaputsika piston mhete:
Kutyoka kwemhete yepiston kunonyanya kuitika mumhete yepiston yekumusoro, iyo inowanzofumurwa kune tembiricha yakanyanya uye kudzvanywa kwakanyanya, kunyanya kana pamusoro pehumburumbira yakapfekwa. Kana mhete ikaputsika panguva yekushanda, kuputsika kwemhete kuchakwenya mukati mehumburumbira uye kuita ruzha; kana kuti chikamu chezasi checylinder chichapisa nekuda kwekubuda kwegasi, iyo inobva yanyura mukati me crankcase uye ichibudisa huwandu hwakawanda hwemafuta. Kune rumwe rutivi, mushure mokunge mhete yepiston yatyoka, kudzvinyirira kunoderedzwa zvakare, zvichiita kuti kusapisa kusina kunaka uye utsi hutema mumhepo inopera.
