Ukuthengisa okuqondile kwasefekthri SAIC MAXUS V80 C00014713 Piston Ring-92MM

Ulwazi lwemikhiqizo

I-Piston Ring iyindandatho yensimbi esetshenziselwa ukufakwa emseleni wepiston. Kunezinhlobo ezimbili zamasongo e-piston: iringi yokucindezela kanye nendandatho kawoyela. Indandatho yokucindezela isetshenziselwa ukuvala ingxube evuthayo ekamelweni elivuthayo; indandatho kawoyela isetshenziselwa ukukhuhla uwoyela oweqile kusilinda.

Indandatho ye-piston iyindandatho yensimbi enwebekayo ene-deformation enkulu yangaphandle, ehlanganiswe emseleni we-annular ohambisana nengxenye yesiphambano. Amasongo episton aphindiselayo naphendukayo ancike emehlukweni wengcindezi yegesi noma uketshezi ukuze akhe uphawu phakathi kwendawo eyindilinga yangaphandle yesilinda kanye nohlangothi olulodwa lweringi kanye negroove eyiringi.

Izindandatho ze-piston zisetshenziswa kakhulu emishinini yamandla ehlukahlukene, njengezinjini ze-steam, izinjini zikadizili, izinjini zikaphethiloli, ama-compressor, imishini yokudonsa amanzi, njll., futhi asetshenziswa kakhulu ezimotweni, ezitimeleni, emikhunjini, ezikebheni, njll. Ngokuvamile, indandatho yepiston isetshenziswa kakhulu. ifakwe emgodini we-piston, futhi yakha igumbi elinepiston, i-cylinder liner, i-cylinder head kanye ezinye izingxenye zokwenza umsebenzi.

ukubaluleka

I-piston ring iyingxenye eyinhloko ngaphakathi kwenjini kaphethiloli, eqeda ukuvala igesi kaphethiloli kanye nesilinda, i-piston, i-cylinder wall, njll. Izinjini zezimoto ezisetshenziswa kakhulu izinjini zikadizili nezikaphethiloli. Ngenxa yokusebenza kwawo okuhlukile kukaphethiloli, izindandatho zepiston ezisetshenzisiwe nazo zihlukile. Amasongo e-piston okuqala akhiwa ngokusakazwa, kodwa ngokuthuthuka kobuchwepheshe, amasongo ensimbi anamandla aphezulu azalwa. , kanye nokuthuthukiswa okuqhubekayo kokusebenza kwenjini kanye nezidingo zemvelo, izinhlelo zokusebenza ezihlukahlukene ezithuthukisiwe zokwelapha indawo engaphezulu, njengokufafaza okushisayo, i-electroplating, i-chrome plating, i-gas nitriding, ukufakwa komzimba, ukunamathela kwendawo, i-zinc-manganese phosphating, njll., Umsebenzi we- indandatho ye-piston ithuthukiswe kakhulu.

Umsebenzi

Imisebenzi ye-piston ring ihlanganisa imisebenzi emine: ukuvala, ukulawula uwoyela (ukulawula uwoyela), ukuqhutshwa kokushisa (ukudlulisa ukushisa), kanye nokuqondisa (ukwesekwa). Ukuvalwa: kubhekisela ekuvaleni igesi, ukuvimbela igesi egunjini lomlilo ukuthi ingangeni ku-crankcase, ukulawula ukuvuza kwegesi okungenani, kanye nokwenza ngcono ukusebenza kahle kokushisa. Ukuvuza komoya ngeke kunciphise amandla enjini kuphela, kodwa futhi kucekele phansi uwoyela, okuwumsebenzi oyinhloko wendandatho yomoya; Lungisa amafutha (ukulawula uwoyela): sula amafutha okugcoba ngokweqile odongeni lwesilinda, futhi ngesikhathi esifanayo wenze udonga lwesilinda lube mncane Ifilimu yamafutha amancane iqinisekisa ukugcoba okujwayelekile kwesilinda, i-piston nendandatho, okuwumsebenzi oyinhloko. wendandatho yamafutha. Ezinjini zanamuhla zejubane eliphezulu, ukunakwa okukhethekile kukhokhwa endimeni ye-piston yokulawula ifilimu yamafutha; ukuqhutshwa kokushisa: ukushisa kwepiston kuqhutshwa ku-cylinder liner ngokusebenzisa indandatho yepiston, okungukuthi, ukupholisa. Ngokusho kwedatha ethembekile, u-70-80% wokushisa otholwe yi-piston top ku-piston engapholisiwe uhlakazwa ngeringi ye-piston odongeni lwesilinda, futhi u-30-40% wepiston epholile idluliselwa kusilinda ngokusebenzisa I-piston ring Support: I-piston ring igcina i-piston kusilinda, ivimbela i-piston ukuthi ixhumane ngqo nodonga lwesilinda, iqinisekisa ukuthi ukunyakaza okushelelayo kwepiston, kunciphisa ukumelana nokungqubuzana, futhi kuvimbela ipiston ekushayeni isilinda. Ngokuvamile, i-piston yenjini kaphethiloli isebenzisa izindandatho zomoya ezimbili nendandatho kawoyela eyodwa, kuyilapho injini yedizili ivamise ukusebenzisa izindandatho zikawoyela ezimbili nendandatho yomoya eyodwa. [2]

isici

amandla

Amandla asebenza eringini ye-piston ahlanganisa ukucindezela kwegesi, amandla okunwebeka iringi ngokwayo, amandla angenangqondo okunyakaza okuphindaphindayo kweringi, ukungqubuzana phakathi kweringi nesilinda kanye negroove yeringi, njll. Njengomphumela walokhu amandla, indandatho izokhiqiza ukunyakaza okuyisisekelo njengokunyakaza kwe-axial, ukunyakaza kwe-radial, nokunyakaza kokujikeleza. Ngaphezu kwalokho, ngenxa yezici zayo zokunyakaza, kanye nokunyakaza okungajwayelekile, indandatho yepiston ibonakala imisiwe ngokungenakugwenywa kanye nokudlidliza kwe-axial, ukunyakaza okungavamile kwe-radial nokudlidliza, ukunyakaza okusontayo, njll. okubangelwa ukunyakaza okungavamile kwe-axial. Lokhu kunyakaza okungajwayelekile kuvame ukuvimbela izindandatho zepiston ukuthi zingasebenzi. Lapho uklama indandatho ye-piston, kuyadingeka ukunikeza ukudlala okugcwele ekunyakazeni okuhle futhi ulawule uhlangothi olungalungile.

conductivity ezishisayo

Ukushisa okuphezulu okukhiqizwa ukusha kudluliselwa odongeni lwesilinda ngeringi ye-piston, ukuze kupholise ipiston. Ukushisa okukhishwe odongeni lwesilinda ngeringi yepiston ngokuvamile kungafinyelela ku-30 ​​kuya ku-40 % wokushisa okumuncwa phezulu kwepiston.

ukuqina komoya

Umsebenzi wokuqala weringi yepiston ukugcina uphawu phakathi kwepiston nodonga lwesilinda nokulawula ukuvuza komoya okungenani. Le ndima yenziwa ngokuyinhloko yindandatho yegesi, okungukuthi, ngaphansi kwanoma yiziphi izimo zokusebenza zenjini, ukuvuza komoya ocindezelwe kanye negesi kufanele kulawulwe okungenani ukuze kuthuthukiswe ukusebenza kahle kokushisa; ukuvimbela ukuvuza phakathi kwesilinda nepiston noma phakathi kwesilinda neringi. Bamba; vimbela ukwehluleka okubangelwa ukuwohloka kwamafutha okugcoba, njll.

Ukulawula uwoyela

Umsebenzi wesibili wendandatho ye-piston ukukhuhla kahle amafutha okugcoba anamathiselwe odongeni lwesilinda nokugcina ukusetshenziswa kukawoyela okuvamile. Lapho amafutha okugcoba anikeziwe eningi kakhulu, azodonswa ekamelweni lokushisa, okuzokwandisa ukusetshenziswa kukaphethiloli, futhi kuzoba nomthelela omubi ekusebenzeni kwenjini ngenxa yediphozithi ye-carbon ekhiqizwa ukushisa.

Ukusekela

Ngenxa yokuthi i-piston incane kunobubanzi obungaphakathi besilinda, uma ingekho indandatho yepiston, i-piston ayizinzile kusilinda futhi ayikwazi ukuhamba ngokukhululeka. Ngesikhathi esifanayo, indandatho iphinde ivimbele i-piston ukuthi ithinte ngokuqondile isilinda futhi idlala indima yokusekela. Ngakho-ke, indandatho ye-piston iya phezulu naphansi kusilinda, futhi indawo yayo eshelelayo ithwalwa ngokugcwele yiringi.

Ukwahlukanisa

Ngesakhiwo

A. Isakhiwo se-Monolithic: ngenqubo yokubunjwa noma ukubumba okubalulekile.

b. Indandatho ehlanganisiwe: Iringi yepiston eyakhiwe izingxenye ezimbili noma ngaphezulu ezihlanganiswe emseleni oyindandatho.

c. Indandatho kawoyela ecijile: indandatho kawoyela enezinhlangothi ezihambisanayo, umhlabathi oxhumene nawo kanye nezimbobo zokubuyisa uwoyela.

D. Indandatho kawoyela yesiphethu sekhoyili ecijile: engeza indandatho kawoyela yesiphethu sekhoyili esisekelweni esiyingini samafutha. Intwasahlobo yokusekela ingakhuphula ingcindezi ethile ye-radial, futhi amandla ayo endaweni yangaphakathi yendandatho iyalingana. Ivame ukutholakala emasongweni enjini ye-diesel.

E. Ibhande lensimbi indandatho kawoyela ehlanganisiwe: indandatho kawoyela eyakhiwe ngendandatho yolwelwesi kanye namasongo amabili e-scraper. Idizayini yeringi yokusekela iyahlukahluka kumkhiqizi futhi ivame ukutholakala emasongweni enjini kaphethiloli.

Umumo wesigaba

Indandatho yebhakede, indandatho yekhoni, indandatho yangaphakathi ye-chamfer twist, indandatho ye-wedge nendandatho ye-trapezoid, iringi yekhala, indandatho yangaphandle yehlombe, indandatho yangaphakathi ye-chamfer twist, indandatho kawoyela yebhande lensimbi, indandatho kawoyela ye-chamfer ehlukile, okufanayo Iringi likawoyela we-chamfer, ikhoyili yensimbi indandatho yamafutha entwasahlobo, indandatho yamafutha ensimbi, njll.

Ngezinto ezibonakalayo

Insimbi, insimbi.

ukwelashwa kwendawo

Indandatho ye-nitride: Ukuqina kongqimba lwe-nitride kungaphezu kuka-950HV, i-brittleness iyibanga loku-1, futhi inokumelana nokugqokwa okuhle nokumelana nokugqwala. I-Chrome-plated ring: I-chrome-plated layer ilungile, ihlangene futhi ibushelelezi, inobunzima obungaphezu kuka-850HV, ukumelana okuhle kakhulu nokugqokwa, kanye nenethiwekhi yama-criss-cross-cross-cracks, avumela ukugcinwa kwamafutha okugcoba. . I-Phosphating ring: Ngokwelashwa ngamakhemikhali, ungqimba lwefilimu ye-phosphating kwakheka phezu kweringi ye-piston, edlala umthelela wokulwa nokugqwala emkhiqizweni futhi iphinde ithuthukise ukusebenza kokuqala kokugijima kweringi. Indandatho ye-oxidation: Ngaphansi kwesimo sokushisa okuphezulu kanye ne-oxidant eqinile, ifilimu ye-oxide yakheka ebusweni bensimbi, enokumelana nokugqwala, ukuthambisa okulwa nokungqubuzana nokubukeka kahle. Kukhona i-PVD nokunye.

ngokomsebenzi

Kunezinhlobo ezimbili zamasongo e-piston: iringi yegesi nendandatho kawoyela. Umsebenzi wendandatho yegesi ukuqinisekisa uphawu phakathi kwepiston nesilinda. Ivimbela izinga lokushisa eliphezulu kanye negesi enomfutho ophezulu ku-cylinder ukuthi ingavuzi ku-crankcase ngobuningi, futhi ngesikhathi esifanayo ihambisa ukushisa okuningi ukusuka phezulu kwepiston kuya odongeni lwesilinda, bese isuswa amanzi okupholisa noma umoya.

Indandatho kawoyela isetshenziselwa ukukhuhla uwoyela oweqile odongeni lwesilinda, futhi igcoke ifilimu yamafutha efanayo odongeni lwesilinda, engakwazi nje ukuvimbela uwoyela ukuthi angangeni kusilinda futhi ashise, kodwa futhi inciphise ukuguga nokudabuka kwepiston. , indandatho yepiston kanye nesilinda. ukumelana nokungqubuzana. [1]

ukusetshenziswa

Ukuhlonza okuhle noma okubi

Indawo esebenzayo yeringi ye-piston akufanele ibe nama-nick, imihuzuko kanye nama-peelings, indawo engaphandle yesilinda kanye nendawo yokugcina ephezulu nephansi izoba nokushelela okuthile, ukuchezuka kwe-curvature akufanele kube kukhulu kuno-0.02-0.04 mm, kanye nokucwila okujwayelekile. Inani lendandatho emgodini akufanele lidlule u-0.15-0.25 mm, ukunwebeka nokucaciswa kwendandatho ye-piston kuhlangana imithethonqubo. Ngaphezu kwalokho, izinga lokuvuza elikhanyayo lendandatho ye-piston kufanele lihlolwe, okungukuthi, indandatho ye-piston kufanele ibekwe phansi kusilinda, inganono encane yokukhanya kufanele ibekwe ngaphansi kweringi ye-piston, futhi kubekwe ipuleti lomthunzi. yona, bese kufanele kubhekwe igebe lokuvuza kokukhanya phakathi kweringi yepiston nodonga lwesilinda. Lokhu kubonisa ukuthi ukuxhumana phakathi kweringi yepiston nodonga lwesilinda kuhle. Ngokuvamile, igebe lokuvuza elikhanyayo leringi ye-piston akufanele lidlule u-0.03 mm uma likalwa ngegeji yokujiya. Ubude bokuqhekeka kokukhanya okuqhubekayo akumele bube bukhulu kuno-1/3 wobubanzi besilinda, ubude bokuvuza okumbalwa kokukhanya akumele bube bukhulu kuno-1/3 wobubanzi besilinda, kanye nobude obuphelele bokuvuza kokukhanya okuningana kufanele. ungadluli i-1/2 ye-diameter yesilinda, ngaphandle kwalokho, kufanele ishintshwe.

imithethonqubo yokumaka

I-Piston ring marking GB/T 1149.1-94 ibeka ukuthi zonke izindandatho zepiston ezidinga indlela yokufaka kufanele zimakwe ohlangothini olungaphezulu, okungukuthi, uhlangothi oluseduze negumbi lomlilo. Amasongo amakwe ohlangothini olungenhla ahlanganisa: indandatho eyisiyingi, i-chamfer yangaphakathi, indandatho yetafula esikiwe yangaphandle, indandatho yekhala, indandatho ye-wedge nendandatho yamafutha edinga isiqondiso sokufakwa, futhi uhlangothi olungaphezulu lwendandatho luphawulwe.

Izinyathelo zokuzivikela

Naka lapho ufaka amasongo e-piston

1) Indandatho ye-piston ifakwe ngokuphelele ku-cylinder liner, futhi kufanele kube negebe elithile lokuvula esibonakalayo.

2) Indandatho ye-piston kufanele ifakwe ku-piston, futhi ku-groove yendandatho, kufanele kube nendawo ethile yokuvula eceleni kwendlela yokuphakama.

3) Indandatho ene-chrome-plated kufanele ifakwe esiteshini sokuqala, futhi ukuvulwa akufanele kubhekane nesiqondiso somgodi wamanje we-eddy phezulu kwepiston.

4) Izimbobo zeringi ngayinye ye-piston zinyakaziswa ngu-120 ° C, futhi azivunyelwe ukubhekana nembobo yephini le-piston.

I-5) Emasongweni e-piston anesigaba se-tapered, i-tapered surface kufanele ibe phezulu ngesikhathi sokufakwa.

6) Ngokuvamile, lapho indandatho ye-torsion ifakiwe, i-chamfer noma i-groove kufanele ibe phezulu; lapho kufakwa indandatho ye-anti-torsion tapered, gcina ikhoni ibheke phezulu.

I-7) Uma ufaka indandatho ehlanganisiwe, indandatho ye-axial lining kufanele ifakwe kuqala, bese ukufakwa kwendandatho eyisicaba kanye nendandatho yamagagasi. Iringi eyisicaba ifakwa phezulu nangaphansi kwendandatho yamagagasi, futhi izimbobo zendandatho ngayinye kufanele zinyakaze ukusuka komunye nomunye.

Umsebenzi wezinto ezibonakalayo

1. Ukumelana nokugqoka

2. Ukugcina uwoyela

3. Ubulukhuni

4. Ukumelana nokugqwala

5. Amandla

6. Ukumelana nokushisa

7. Ukuthambekela

8. Ukusika ukusebenza

Phakathi kwabo, ukumelana nokugqoka nokunwebeka yikhona okubaluleke kakhulu. Izinto zokwakha indandatho ye-piston yenjini ye-diesel enamandla kakhulu zifaka i-grey cast iron, i-ductile iron, i-alloy cast iron, ne-vermicular graphite cast iron.

Umhlangano wenduku yokuxhuma i-piston

Amaphuzu asemqoka omhlangano weqembu lenduku yokuxhuma i-diesel generator piston ami kanje:

1. Umkhono wethusi wenduku yokuxhuma ilingana ngokucindezela. Uma ufaka umkhono wethusi wenduku yokuxhuma, kungcono ukusebenzisa umshini wokucindezela noma i-vise, futhi ungayishayi ngesando; imbobo kawoyela noma inkatho kawoyela emkhonweni wethusi kufanele iqondaniswe nembobo yamafutha entongeni yokuxhuma ukuze kuqinisekiswe ukuthambisa kwayo.

2. Hlanganisa i-piston nenduku yokuxhuma. Lapho uhlanganisa i-piston nenduku yokuxhuma, naka isikhundla sabo esihlobene nokuma kwabo.

Ezintathu, iphinikhodi yepiston efakwe ngobuhlakani. Iphinikhodi yephinikhodi kanye nembobo yephinikhodi kuwukulingana kokuphazanyiswa. Lapho ufaka, qala ngokubeka ipiston emanzini noma emafutheni futhi uyishise ngokulinganayo ibe ngu-90°C~100°C. Ngemva kokuyikhipha, beka induku kathayi endaweni efanele phakathi kwezimbobo zezihlalo zephinikhodi, bese ufaka iphinikhodi yepiston egcotshwe ngamafutha ngendlela enqunywe kusengaphambili. embotsheni yephinikhodi ye-piston kanye nomkhono wethusi wenduku yokuxhuma

Okwesine, ukufakwa kwe-piston ring. Lapho ufaka amasongo e-piston, naka isikhundla nokuhleleka kwendandatho ngayinye.

Okwesihlanu, faka iqembu lenduku yokuxhuma.