Kuti uchengetedze gaka rakafanana uye rakakodzera pakati pepiston uye cylinder madziro pane yakajairika tembiricha yekushanda uye kuve nechokwadi chekushanda kwakajairika kwepiston, dhizaini yepiston inowanzova neanotevera maitiro.
1. Ita oval shape mberi. Kuti uite kuti mativi ese ejasi atakure kumanikidza kwegasi uye kuchengetedza gaka diki uye rakachengeteka necylinder, piston inofanirwa kuve cylindrical kana ichishanda. Nekudaro, nekuti ukobvu hwesiketi yepiston haina kuenzana, simbi yepiston yepini yechigaro gomba yakakora, uye huwandu hwekuwedzera kwehutsi hwakakura, uye huwandu hwekuchinja pamwe neaxis yechigaro chepiston yakakura kupfuura mu. dzimwe nzira. Mukuwedzera, siketi iri pasi pechiito chegasi side pressure, izvo zvinoita kuti axial deformation yepiston ive yakakura kudarika vertical piston pin direction. Nenzira iyi, kana siketi yepiston ikaita denderedzwa kana kuchitonhora, piston inozoita ellipse painenge ichishanda, zvichiita kuti mukaha wekutenderera pakati pepiston necylinder usaenzane, zvichiita kuti piston ijame mucylinder uye injini haigoni kushanda zvakanaka. Naizvozvo, siketi yepiston inoumbwa kuita oval chimiro pamberi panguva yekugadzirisa. Iyo yakareba axis inotungamira yeellipse inotenderera kune chigaro chepini, uye pfupi axis kutungamira iri parutivi pechigaro chepini, kuitira kuti piston inoswededza denderedzwa rakakwana kana ichishanda.
2.Inogadzirwa kuva akatsikwa kana tapered chimiro mberi. Tembiricha yepiston padivi pehurefu kutungamira haina kuenzana. Tembiricha yepiston yakakwira kumusoro uye yakadzikira pazasi, uye huwandu hwekuwedzera hwakakura zvakakura pachikamu chepamusoro uye chidiki pazasi. Kuti ugadzire madhayamita epamusoro uye epasi episton anowanzo kuve akaenzana panguva yekushanda, kureva, cylindrical, piston inofanira kunge yakafanogadzirwa kuita yakatsika chimiro kana koni ine diki kumusoro uye yakakura yakaderera.
3.Slotted piston siketi. Kuti uderedze kupisa kwepiston siketi, yakatwasuka kupisa kupisa groove inowanzovhurwa mujasi. Kuti ubhadhare deformation ye siketi mushure mekupisa, siketi inovhurwa ne longitudinal yekuwedzera groove. Chimiro che groove chine T-shaped groove.
Iyo yakachinjika groove inowanzo kuvhurwa pasi peinotevera ring groove, pamativi ese epini chigaro pamucheto wepamusoro wesiketi (zvakare mune yemafuta ring groove) kuderedza kupisa kwekushisa kubva kumusoro kuenda kune siketi, saka inodaidzwa. the heat insulation groove. Iyo vertical groove ichaita kuti siketi ive nehumwe dhigirii yekunyungudika, kuitira kuti gaka riri pakati pepiston necylinder ridiki sezvinobvira kana piston yaunganidzwa, uye ine muripo wemhedzisiro kana ichipisa, kuitira kuti piston. haizonamirwe muhumburumbira, saka gorofu rakamira rinodaidzwa kuti Yetangi rekuwedzera. Mushure mekunge siketi yaiswa vertically slotted, kuomarara kwedivi rakatsvetwa kuchava kudiki. Panguva yegungano, inofanira kunge iri padivi apo kudzvinyirirwa kwemativi kunoderedzwa panguva yekurohwa kwebasa. Iyo piston yeinjini yedhiziri inotakura simba rakawanda. Chikamu cheskirt hachina grooved.
4.Kuti uderedze kunaka kwemamwe mapiston, gomba rinogadzirwa mujasi kana chikamu chesiketi chinogurwa pamativi ese ejasi kuti kuderedze simba reJ inertia uye kuderedza deformation yekupisa padyo nechigaro chepini gadzira pisitoni yengoro kana pisitoni pfupi . Siketi yechimiro chengoro ine elasticity yakanaka, diki diki, uye diki inofananidzwa kubvumidzwa pakati pepiston necylinder, iyo yakakodzera kune yakakwira-kumhanya injini.
5.Kuitira kudzikisa kuwedzera kwekupisa kwealuminium alloy piston siketi, mamwe peturu injini pistons akaiswa neHengfan simbi mune piston siketi kana pini chigaro. Chimiro cheHengfan simbi piston ndechekuti Hengfan simbi ine 33% nickel. Iyo 36% yakaderera-kabhoni iron-nickel alloy ine yekuwedzera coefficient ye1/10 chete yealuminium alloy, uye chigaro chepini chakabatana nesiketi neHengfan simbi sheet, iyo inodzivirira kupisa kwekuwedzera deformation. siketi.
6. Pane dzimwe injini dzepetroli, iyo yepakati pegomba repiston inotsauka kubva kune ndege yepiston centerline, iyo inogadziriswa ne 1 kusvika ku 2 mm kune rumwe rutivi rwebasa rekushanda rinogamuchira kumanikidzwa kune rumwe rutivi rukuru. Ichi chimiro chinoita kuti piston ishanduke kubva kune rumwe rutivi rwehumburumbira kuenda kune rumwe rutivi rwehumburumbira kubva pakudzvanya sitiroko kuenda kusimba remagetsi, kuitira kuti kuderedze ruzha rwekugogodza. Panguva yekuisa, iyo yakarerekera nzira yepiston haigone kudzoserwa kumashure, zvikasadaro iyo inodzosera inogogodza simba ichawedzera uye siketi ichakuvadzwa.
