Piston mhete.
Piston mhete inoshandiswa kuisa piston groove mukati memhete yesimbi, piston mhete yakakamurwa kuita marudzi maviri: mhete yekumanikidza uye mhete yemafuta. Mhete yekumanikidza inogona kushandiswa kuvhara gasi rinopisa rinopisa mukamuri rinopisa; Iyo mhete yemafuta inoshandiswa kukwenya mafuta akawandisa kubva muhumburumbira. Iyo piston mhete imhando yesimbi elastic mhete ine yakakura yekuwedzera deformation, iyo inounganidzwa muprofile uye inoenderana annular groove. Mhete dzepiston dzinodzorera uye dzinotenderera dzinotsamira pamusiyano wekumanikidzwa kwegasi kana mvura kuti igadzire chisimbiso pakati pedenderedzwa rekunze remhete necylinder uye rimwe divi remhete nemhete groove.
Chikamu chekushandisa
Piston mhete dzinoshandiswa zvakanyanya mumhando dzakasiyana dzemagetsi emagetsi, senge injini dzemagetsi, injini dzedhiziri, injini dzepeturu, compressors, hydraulic presses, nezvimwewo, dzinoshandiswa zvakanyanya mumotokari, zvitima, ngarava, yachts zvichingodaro. Kazhinji, mhete yepiston inoiswa mumhete yepiston, uye iyo nepiston, silinda liner, silinda musoro uye zvimwe zvikamu zvekamuri kuita basa.
Piston mhete ndiyo yakakosha chikamu mukati meinjini yemafuta, iyo uye silinda, piston, silinda madziro pamwe chete kupedzisa chisimbiso chemafuta gasi. Injini dzemotokari dzinowanzo shandiswa dzine marudzi maviri einjini dzedhiziri nepeturu, nekuda kwekuita kwavo kwakasiyana kwemafuta, kushandiswa kwemhete dzepiston hakuna kufanana, mhete dzepiston dzekutanga dzinoumbwa nekukanda, asi nekufambira mberi kwehunyanzvi, mhete dzepiston dzesimbi dzakazvarwa, uye nebasa reinjini, zvinodiwa zvezvakatipoteredza zvinoramba zvichivandudzika, zvakasiyana-siyana, senge platinamu yemagetsi, chrome platinamu, kupfapfaidza, kupfapfaidza, kupfapfaidza, kupfapfaidza, kupfapfaidza, kupfapfaidza, kupfapfaidza, kupfapfaidza, kupfapfaidza, kupfapfaidza, kupfapfaidza, kupfapfaidza. etc. Gasi nitriding, kuisa muviri, kuvhara kwepamusoro, zinc manganese phosphating kurapwa, nezvimwewo, inovandudza zvikuru basa remhete yepiston.
Piston mhete basa rinosanganisira kuvhara, kudzora mafuta (kudzora mafuta), kupisa conduction (kupisa kupisa), kutungamira (rutsigiro) mabasa mana. Kuisa chisimbiso: kunoreva kuisa chisimbiso gasi, usarega kamuri yekupisa gasi ichidonha kune crankcase, iyo gasi kuvuza kunodzorwa zvishoma, kunatsiridza kupisa kwekupisa. Kudonha kwemhepo hakuzongodzikisi simba rejini, asiwo kuita kuti mafuta awedzere, iro ndiro basa guru remhete yegesi; Gadzirisa mafuta (oiri kutonga): iyo yakawandisa mafuta ekuzora pamadziro ecylinder inobviswa, uye cylinder madziro akafukidzwa nemafuta akaonda firimu kuti ave nechokwadi chekuzora kwakajairika kwecylinder uye piston uye mhete, rinova iro basa guru remhete yemafuta. Mune injini dzemazuva ano dzepamusoro-soro, kunyanya kukoshesa kunobhadharwa kune basa repiston ring control oil film; Heat conduction: kupisa kwepiston kunoendeswa kune cylinder liner kuburikidza nemhete yepiston, kureva, iyo inotonhorera. Maererano nemashoko akavimbika, 70 ~ 80% yekupisa yakagamuchirwa nepamusoro pepiston yepistoni isina kuvharwa inoparadzirwa kuburikidza nemhete yepiston kumadziro evhavha, uye 30 ~ 40% yepiston inotonhorera inoparadzirwa kuburikidza nemhete yepiston kumadziro evhavha; Tsigiro: Mhete yepiston inochengeta piston mucylinder, inodzivirira kusangana kwakananga pakati pepiston uye cylinder madziro, inova nechokwadi chekufamba kwakanaka kwepiston, inoderedza kupokana, uye inodzivirira piston kugogodza silinda. Kazhinji, piston yeinjini yepeturu inoshandisa mhete mbiri dzegasi uye mhete imwe yemafuta, nepo injini yedhiziri inowanzoshandisa zvindori zviviri zvemafuta uye mhete imwe yegasi.
Kuzivikanwa kwakanaka uye kwakaipa
Iyo yekushanda pamusoro pepiston mhete haizove nema nick, zvikwambo, peeling, iyo silinda yekunze uye yepamusoro uye yakaderera magumo ekupedzisira achave neyakagadziriswa kupera, iyo curvature kutsauka hakuzove yakakura kupfuura 0.02-0.04 mm, iyo yakajairwa subsidence yemhete mu groove haingapfuure 0.15 mm ringity uye 2 kurira kweiyo elasticity ye 2-0. zvinodiwa. Pamusoro pezvo, isu tinofanirawo kutarisa kubuda kwechiedza chemhete yepiston, ndiko kuti, mhete yepiston yakati sandara mucylinder, isa mwenje diki pasi pemhete yepiston, isa chidzitiro chechiedza pamusoro, tozoona gaka rekubuda kwechiedza pakati pemhete yepiston uye cylinder madziro, izvo zvinoratidza kana kusangana pakati pepiston mhete nemadziro ecylinder kwakanaka. Mumamiriro ezvinhu akajairwa, mwenje unovuza seam yepiston mhete yakayerwa negeji ukobvu haifanire kudarika 0.03 mm. Kureba kwechiedza chinoramba chichibuda musono hachifanire kunge chakakura kupfuura 1/3 yedhayamita yecylinder, kureba kwehuwandu hwemagapu ekubuda kwechiedza haafanire kunge akakura kupfuura 1/3 yedhayamita yecylinder, uye hurefu hwese hwehuwandu hwekudonha kwechiedza hahufanire kudarika 1/2 ye silinda dhayamita, zvikasadaro, inofanira kutsiviwa. Piston mhete yekumaka GB/T 1149.1-94 inotsanangura kuti mhete dzese dzepiston dzinodiwa kuti dzive negwara rekukwira dzichaiswa chiratidzo kudivi rekumusoro, ndiko kuti, parutivi padyo nekamuri yekupisa. Mhete dzakatarwa kudivi repamusoro dzinosanganisira: mhete yekoni, chamfer yemukati, mhete yetafura yekunze, mhete yemhino, mhete yewedge uye mhete yemafuta inoda kugadzwa, uye rutivi rwepamusoro rwemhete rwakamaka.
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