Ukuqhamisa ibholaUkunyamezelana Kucacisiwe

Ngaba uyakuqonda ukunyamezela kunye nokuba kuthetha ukuthini ngokwenene?Ukuba akunjalo, awuwedwa.Ezi zidla ngokucatshulwa kodwa kaninzi ngaphandle kokuqonda kokwenyani ukuba zithetha ukuthini.Iiwebhusayithi ezineenkcazo ezilula zokunyamezelana zinqabile kakhulu ngoko sigqibe kwelokuba sigcwalise umsantsa.Ke, ukuba ufuna ukwazi ukuba "Mean Bore Deviation" kunye "neSingle Bore Variation" ithetha ntoni?Qhubeka ufunda njengoko sinethemba lokuyenza icace ngakumbi le nto.

Ukutenxa

Oku kuchaza ukuba kude kangakanani kwi-dimension ye-nominal, umlinganiselo wangempela uvumelekile ukuba ube.Umlinganiselo oqhelekileyo ngulo uboniswe kwikhathalogu yomenzi umz. i-6200 ine-bore ye-10mm, i-688 ine-nominal bore eyi-8mm njl njl.Ngaphandle kwemigangatho yonyamezelo lwamazwe ngamazwe kwiibheringi (ISO kunye ne-AFBMA), kuya kuba kumenzi ngamnye ngamnye.Oku kunokuthetha ukuba u-odola i-688 bearing (8mm bore) kuphela ufumanise ukuba ibhorekile yi-7mm kwaye ayizukulingana neshafti.Ukunyamezela ukutenxa ngokuqhelekileyo kuvumela ukuba i-bore okanye i-OD ibe yincinci kodwa ingabi nkulu kunomlinganiselo oqhelekileyo.

Kuthetha Ukuphambuka kweBore/OD

…Oku kukunyamezelana okubalulekileyo xa ujonge ukudibana ngokusondeleyo nomsesane wangaphakathi kunye ne-shaft okanye umsesane wangaphandle kunye nezindlu.Okokuqala kufuneka uqonde ukuba i-bearing ayikho round.Ewe ayikude kodwa xa uqala ukulinganisa ngeemicrons (amawakawaka emilimitha) uyaqonda ukuba imilinganiselo iyahluka.Masithathe ibhore ye-688 yebheringi (8 x 16 x 5mm) njengomzekelo.Ngokuxhomekeke kwindawo owuthatha kuyo umlinganiselo ongaphakathi kwiringi yakho, unokufumana ufundo naphi na, masithi, phakathi kwe-8mm kunye ne-7.991 mm ngoko ke uthatha ntoni njengobungakanani bebhore?Apha kulapho iMean ukutenxa kungena khona. Oku kubandakanya ukuthatha inani lemilinganiselo kwinqwelomoya yeradial enye (siya kufika kuloo nto ngomzuzu) ngaphaya kwebhore okanye iOD ukwenza iavareji ngaphandle kwedayamitha yaloo ringi.

Lo mzobo umele umsesane ongaphakathi.Iintolo zimele imilinganiselo eyahluka-hlukeneyo ethatyathwe kwibhore kumacala ahlukeneyo ukunceda ukufumanisa ubungakanani obuphakathi.Le seti yemilinganiselo ithathwe ngokuchanekileyo kwinqwelomoya enye yeradial okt kwindawo enye ngobude bebhore.Iiseti zemilinganiselo kufuneka kwakhona zithathwe kwiindiza ezahlukeneyo zeradial ukuqinisekisa ukuba ibhore ingaphakathi kokunyamezela ngobude bayo.Oku kuyasebenza nakwimilinganiselo yeringi yangaphandle.

Lo mzobo ubonisa ukuba UNGAYENZI njani.Umlinganiselo ngamnye uthathwe kwindawo eyahlukileyo kunye nobude bendandatho yokuthwala, ngamanye amazwi, umlinganiselo ngamnye uthathwe kwi-radial plane eyahlukileyo.

Ngokulula, ubungakanani obuphakathi bubalwa ngolu hlobo lulandelayo:

Oku kuluncedo kakhulu xa kubalwa unyamezelo lweshafti kunomlinganiselo omnye wokubhora onokuthi ulahlekise.

Masithi unyamezelo olundilekileyo olunxaxhileyo kwi-P0 ibe ngu +0/-8 microns.Oku kuthetha ukuba i- mean bore ingaba phakathi kwe-7.992mm kunye ne-8.000mm.Umgaqo ofanayo usebenza kwiringi yangaphandle.

Ukutenxa ngobubanzi

…Akukho ngcaciso ingako ifunekayo apha.Njengoko kubhore kunye ne-OD imilinganiselo, ububanzi kufuneka balawulwe ngaphakathi kokunyamezela okuthile.Ekubeni ububanzi buhlala bungabalulekanga kakhulu, ukunyamezela kubanzi kune-bearing bore okanye i-OD.Ukutenxa kububanzi be +0/-I-120 ithetha ukuba ukuba ulinganisa ububanzi beringi yangaphakathi okanye yangaphandle nakweyiphi na indawo ejikelezileyo, yithi, i-688 (4mm ububanzi) ibenobubanzi, akufunekanga ibe banzi kune-4mm (umlinganiselo wegama) okanye ibe mxinwa kune-3.880mm.

Ukwahluka

Ukunyamezela ukwahluka kuqinisekisa ukujikeleza.Kulo mzobo wokuphuma kakubiye-umjikelo wama-688 umsesane wangaphakathi, owona mlinganiselo mkhulu yi-9.000mm kunye ne-7.000mm encinci.Ukuba sibala i- mean bore size (9.000 + 7.000 ÷ 2) siza ne-8.000mm.Siphakathi konyamezelo olunxaxhileyo kodwa ukuzala kuya kuba kungasebenzisekiyo ukuze ubone ukuba ukutenxa kunye nokwahluka kunokuba lilize ngaphandle komnye.

I-Single Bore / OD Ukwahluka

…Jonga kwidayagram esekhohlo apho imilinganiselo yokubhora iphakathi kwe-8.000mm kunye ne-7.996mm.Umahluko phakathi kowona mkhulu kunye nomncinci ngu-0.004mm, ngoko ke, ukuhluka kwe-bore diameter kule plane enye ye-radial, yi-0.004mm okanye i-4 microns.

Kuthetha Ukwahluka kweBore / OD Diameter

Kulungile, enkosi kuthetha ukuzala / ukutenxa nge-OD kunye nokwahluka okukodwa / kwe-OD, sonwabile ukuba ukuzala kwethu kusondele ngokwaneleyo kubungakanani obuchanekileyo kwaye kungqukuva ngokwaneleyo kodwa kuthekani ukuba kukho i-taper eninzi kakhulu kwibhore okanye i-OD njengoko umzobo osekunene (ewe, kubaxwa kakhulu!).Yiyo loo nto sikwanayo nemida yokwahluka kwe-OD.

Ukufumana intsingiselo yebhore okanye i-OD eyahlukileyo, sirekhoda intsingiselo ye-bore okanye i-OD kwiindiza ezahlukeneyo zeradial kwaye emva koko sijonge umahluko phakathi kweyona inkulu kunye nencinci.Cinga ukuba ngakwesobunxele apha, isethi ephezulu yemilinganiselo inika ubungakanani obuyi-7.999mm, umbindi yi-7.997mm kwaye ezantsi yi-7.994mm.Thatha eyona incinci kweyona inkulu (7.999 -7.994) kwaye umphumo ngu-0.005mm.Umehluko wethu oqhelekileyo wokuzala yi-5 microns.

Ukwahluka kobubanzi

Kwakhona, ngqo kakhulu.Makhe sicinge, ngokuthwala okuthile, ukwahluka okuvunyelweyo kobubanzi yi-15 microns.Ukuba ubunokulinganisela ububanzi beringi yangaphakathi okanye yangaphandle kwiindawo ezahlukeneyo ezohlukeneyo, owona mlinganiselo mkhulu akufunekanga ube ngaphezu kwe-15 yeemicrons ezinkulu kunowona mlinganiso umncinci.

IRadial Runout

…yokudityaniswa kweringi yangaphakathi/yangaphandle ngomnye umba obalulekileyo wokuthwala unyamezelo.Masithi intsingiselo yokutenxa kuzo zombini iringi yangaphakathi kunye nengaphandle ingaphakathi kwemida kwaye ukungqukuva kungaphakathi komahluko ovunyelweyo, ngokuqinisekileyo yiyo yonke into ekufuneka sizikhathaze ngayo?Jonga kulo mzobo weringi yangaphakathi.Ukutenxa kokubhore Kulungile kwaye kunjalo ukwahluka kwe-bore kodwa jonga ukuba ububanzi beringi buyohluka njani.Njengayo yonke enye into, ububanzi beringi abufani ncam kwindawo nganye ejikeleze isangqa kodwa ukunyamezelwa kweradial runout kuyalela ukuba oku kunokwahluka kangakanani.

Umsesane wokubaleka wangaphakathi

… ivavanywa ngokulinganisa onke amanqaku kwisangqa esinye seringi yangaphakathi ngexesha elinye ngelixa i-ringi engaphandle imile kwaye ithatha owona mlinganiselo umncinci kude kowona mkhulu.La manani okuphuma kweradial anikwe kwiitheyibhile zokunyamezelana abonisa owona mahluko aphezulu avunyelweyo.Umahluko kubukhulu beringi apha ubaxo ukuze ubonise ingongoma ngokucacileyo ngakumbi.

Umsesane ophuma ngaphandle

ivavanywa ngokulinganisa onke amanqaku kwisangqa esinye seringi yangaphandle ngexesha le revolution enye ngeli lixa iringi yangaphakathi imile kwaye ithatha owona mlinganiselo umncinci kude kowona mkhulu.

Ubuso Ukuphuma / Bore

Olu kunyamezelana luqinisekisa ukuba umphezulu weringi othweleyo usondele ngokwaneleyo kwi-engile echanekileyo kunye nobuso obungaphakathi.Amanani okunyamezelana ngokubaleka kobuso/ibhore anikwa kuphela iibheringi zeP5 kunye neP4 ezichanekileyo.Onke amanqaku akwisangqa esinye somsesane ongaphakathi wazala kufutshane nobuso alinganiswa ngexesha le-revolution enye ngelixa i-ring yangaphandle imile.Ukuthwala kuyaphethulwa kwaye elinye icala lebhore liyajongwa.Thatha owona mlinganiselo mkhulu ukusuka kowona mncinane ukufumana ukubaleka kobuso/ukunyamezela ukuzala.

Ukuphuma kobuso / OD

…Oku kunyamezela kuqinisekisa ukuba umphezulu weringi wangaphandle usondele ngokwaneleyo kwi-engile echanekileyo kunye nobuso beringi yangaphandle.Amanani okunyamezelana ngokubaleka kobuso/OD anikwa amabakala e-P5 kunye ne-P4 achanekileyo.Onke amanqaku akwisangqa esinye somsesane ongaphandle ecaleni kobuso alinganiswa ngexesha le-revolution enye ngelixa i-ring yangaphakathi imile.Ukuthwala kuyaphethulwa kwaye elinye icala leringi yangaphandle likhangelwe.Thatha owona mlinganiselo mkhulu ukusuka kowona mncinane ukufumana ukuqhutywa kobuso / ukunyamezela kwe-OD.

I-Face Runout/Raceway ziyafana kakhulu kodwa, endaweni yoko, thelekisa utyekelo lweringi yangaphakathi okanye yangaphandle yomphezulu weringi ngobuso obungaphakathi okanye obungaphandle.