Yana da matukar muhimmanci a dace da diamita na ciki tare da shaft da diamita na waje tare da mahalli lokacin da aka shigar da kaya.Idan dacewa yayi sako-sako da yawa, saman mating zai haifar da zamewar dangi, wanda ake kira creep.Da zarar creep ya faru, zai ƙare saman mating, lalata igiya ko gidaje, kuma sa foda zai mamaye wurin da ke ɗaukar hoto, yana haifar da zafi, girgiza da lalacewa.Tsangwama mai yawa zai haifar da ƙananan diamita na waje na waje ko mafi girma diamita na ciki na zobe na ciki, wanda zai rage ƙaddamarwa na ciki.Bugu da ƙari, daidaito na geometric na shaft da harsashi kuma zai shafi ainihin ainihin zoben ɗaukar hoto, don haka ya shafi aikin ɗaukar hoto.
1.1 Zaɓin Fit 1.1.1 An ƙayyade yanayin kaya da zaɓin dacewa bisa ga jagorar ɗaukar nauyi da matsayi na juyawa na ciki da na waje, gabaɗaya yana magana akan Tebura 1. Tebu 1 da na'ura mai ɗaukar nauyi na jujjuya yanayi misalai. tare da zobe na ciki: korau juya: madaidaiciyar lodi shugabanci: kafaffen zobe na ciki kadi load na ciki zobe, na waje zobe a tsaye load AMFANI da tsangwama dace (tsangwama dace) na waje zobe: samuwan gudu fit (clearance) ciki zobe: a tsaye korau da'irar: juyawa shugabanci na kaya, da na waje zobe da jujjuya zobe na ciki: korau juya: a tsaye load shugabanci: kafaffen ciki zobe a tsaye load ciki zobe, waje zobe kadi load samuwa Gudun Fit (clearance) m zobe: AMFANI da tsangwama dace (tsama dace) ciki zobe: a tsaye mara kyau da'ira: jujjuya lodin shugabanci: tare da zoben ciki yana jujjuya lokaci guda.2) Fitar da aka ba da shawarar Don zaɓar dacewa mai dacewa, halaye masu ɗaukar nauyi, girman, yanayin zafin jiki, shigarwa mai ɗaukar nauyi, kawar da yanayi daban-daban.Lokacin da aka ɗora abin ɗamara zuwa harsashi mai bakin ciki da ramin rami, adadin tsangwama yana buƙatar girma fiye da na talakawa.Harsashin da aka rabu zai iya sauƙaƙa ɓata zoben abin ɗamarar, don haka ya kamata a yi amfani da zoben waje a hankali a ƙarƙashin yanayin daidaitawa.A cikin yanayin babban jijjiga, zoben ciki da na waje ya kamata su ɗauki daidaitawa a tsaye.
Haɗin kai tare da mafi yawan shawarwarin gabaɗaya, koma zuwa tebur 2, tebur 3 tebur 2 ɗamarar tsakiya da shaft tare da sharuɗɗan shari'o'i (bayani) diamita na axle (mm) nadi mai ɗaukar hoto mai ɗaukar ra'ayin ball bearings cylindrical roller bearings taper roller bearings atomatik- aligning roller bearing cylindrical hole bearing outer zobe da shaft juyi load bukatar ciki zobe a kan shaft yana da sauki don matsawa a tsaye axle ƙafafun duk girman g6 daidaitattun buƙatun, Tare da g5, h5, ɗauka da sauƙaƙe wayar hannu da ake buƙata h6 yana samuwa ba tare da zobe na ciki ba yana da sauƙi. don matsar da shaft tashin hankali dabaran h6 ciki zobe kadi firam, igiya zagaye ko shugabanci na m load a karkashin haske load 0.06 Cr (1) lodi sãɓãwar launukansa na'urorin, famfo, abin hurawa, truck, ainihin inji, inji kayan aiki a karkashin 18 - Js5 daidaito lokacin da da ake buƙata ta matakin p5, diamita na ciki ta amfani da madaidaicin ƙwallon ƙafa ƙarƙashin 18 mm h5.Nau'in gama gari (0.06 ~ 0.13) Cr (1) Gabaɗaya ɓangaren matsakaita da babban injin turbine, famfo, dunƙule injin, na'urar watsa kayan aiki, injinan itace a ƙarƙashin 18 -- N6 mai jujjuyawar abin nadi mai jeri guda ɗaya da radial turbin ball Ana iya amfani da bearings k6, M6 maimakon K5, M5.P6 140-200 40-65 R6 200-280 100-140 N6 -- 200-400 140-280 P6 -- 280-500 R6 -- Sama da 500 R7 nauyi (sama da 0.13Cr (1) motocin lantarki da masana'antu masu abin hawa lantarki injin injin injin injin injin -- 50-140 50-100 N6 Bukatar ta fi girma fiye da yarda da abin hawa - p6, 140-200, 100-140 - fiye da 200, 140-200 r6 -- 200-500 r7 kawai ɗaukar nauyin axial na sassa na tsarin ɗaukar wuri mai amfani da wurin duk girman Js6 (j6) - tebur 3 centripetal bearing tare da yanayin ramin harsashi masu dacewa (bayani) motsi na ramin ramin haƙuri na kewayon ƙimar bayanin kula gabaɗayan harsashi rami bango mai ɗaukar zoben waje mai juyi. ɗora nauyi mai nauyi abin hawa abin nadi bearings (crane) tafiya dabaran P7 na waje zobe zuwa ga axial shugabanci.
Nauyin al'ada, nauyi mai nauyi mota dabaran (ballin ƙwallon ƙafa) shaker N7 nauyi mai nauyi ko canza kaya mai ɗaukar nauyi mai ɗaukar nauyi mai ɗaukar nauyi, pulley M7 ba mai ɗaukar nauyin shugabanci ba babban tasirin ɗaukar nauyin trolley load ko nauyi mai nauyi na famfo crankshaft sandal babban motar K7 na waje zobe a ciki ka'ida ba zuwa ga axial shugabanci na waje zobe baya bukatar zuwa axial shugabanci integral irin harsashi ramukan ko rabuwa irin harsashi rami na al'ada load ko haske load JS7 (J7) m zobe za su iya matsawa zuwa axial bukatar m zobe zuwa ga axial shugabanci na ciki zobe kadi kaya na kowane nau'i na kaya dauke da wani ɓangare na general hali akwatin na dogo abin hawa H7 m zobe zuwa axial shugabanci sauƙi - al'ada load ko haske load shirya shigar a cikin harsashi shaft da kuma dauke H8 dukan da'irar a cikin general load, high zafin jiki na takarda yin na'urar bushewa G7 haske load, musamman bukatar daidaici nika sandal juyawa a baya na ball hali high-gudun centrifugal kwampreso kafaffen gefen hali JS6 (J6) m zobe zuwa axial shugabanci - ba directed da shugabanci load a baya. na ball bearing nika sandar high-gudun centrifugal kwampreso K6 kafaffen gefe hali na waje zobe gyarawa a cikin axial shugabanci na kaya bisa manufa, zartar da adadin tsangwama tare da ya fi girma fiye da K, musamman bukatu a karkashin yanayin high madaidaici, Ƙananan izini ya kamata a kara amfani da fitilu don kowane dalili.
Nau'in juyawa na ciki na ciki yana da nau'in nau'i daban-daban, musamman buƙatar madaidaicin jujjuyawar da babban ƙarfin injin kayan aiki tare da M6 ko N6 cylindrical roller bearing m zobe da aka gyara a cikin jagorar axial don kayan aikin gida marasa hayaniya H6 zobe na waje zuwa ga axial shugabanci - 3), daidaici. na axis, hood, da axis na saman, madaidaicin hood ba yanayi mai kyau ba ne, wanda abin ya shafa ba zai iya nuna aikin da ake buƙata ba.Alal misali, shigarwa na ɓangaren kafada idan daidaito ba shi da kyau, zoben ciki da na waje za su karkata.Bugu da ƙari, nauyin ɗaukar nauyi, haɗe tare da nauyin da aka mayar da hankali a karshen, za a rage yawan gajiyar rayuwa, kuma mafi mahimmanci, zai zama sanadin lalacewar cage da sintering.Bugu da ƙari, lalacewar harsashi saboda nauyin waje ba shi da girma.Wajibi ne don cikakken goyan bayan rigidity na ɗaukar nauyi.Mafi girman tsayin daka, mafi kyawun amo da rarraba kaya na ɗaukar nauyi.
A cikin gabaɗayan yanayin amfani, jujjuyawar mashin ɗin ko madaidaicin sarrafa injin na iya zama.Duk da haka, don lokuttan tare da tsauraran buƙatun jujjuyawar gudu da amo da yanayin kaya sun yi zafi sosai, za a yi amfani da niƙa na ƙarshe.Lokacin da aka shirya fiye da 2 bearings a cikin dukan gidaje, ya kamata a tsara wuraren da za a yi amfani da su don yin inji da kuma rami.A cikin yanayin amfani gabaɗaya, shaft, daidaiton gidaje da ƙarewa na iya zama kamar yadda aka nuna a cikin Tebura 4 da ke ƙasa.Tebur 4 Axis da daidaiton Gidaje da Ƙarshen bearings - Class AXIS ya rufe jurewar juzu'i - aji 0, aji 6, aji 5, Class 4 IT3 ~ IT42 2IT3 ~ IT42 2 IT4 ~ IT52 2IT2 ~ IT42 2 2 Haƙuri na Cylindricity - aji 0, , class 5, class 4 IT3 ~ IT42 2IT2 ~ IT32 2 IT4 ~ IT52 2IT2 ~ IT32 2 Jikin runout tolerances - class 0, class 6, class 5, class 4 IT3IT3 IT3~IT4IT3 Matching surface finish Rmax small bearing big bearing 3.2 S6. 3s 6.3 S12.5s.
Abin da ake kira ƙyalli na ciki na ɗaukar hoto yana nufin adadin motsi lokacin da aka gyara zobe na ciki ko na waje kafin a ɗora shi a kan shaft ko akwati, sa'an nan kuma gefen da ba a daidaita shi yana motsawa a cikin radial ko axial shugabanci. .Bisa ga jagorancin motsi, ana iya raba shi zuwa radial clearance da axial clearance.Lokacin auna sharewar ciki na abin ɗamarar, don kiyaye ƙimar da aka auna, ana amfani da nauyin gwajin gaba ɗaya akan zobe.Sabili da haka, ƙimar gwajin ya fi girma fiye da ainihin ƙimar sharewa, wato, ƙarin adadin nakasar nakasa da aka yi ta hanyar amfani da nauyin gwajin.Ana nuna ainihin ƙimar ɗaukar izinin ciki a cikin Tebur 4.5.An gyara haɓakar haɓakawa ta hanyar nakasar roba na sama.Nakasar nakasar abin nadi ba ta da komai.Tebur 4.5 don kawar da tasirin radial yarda gwajin ɗaukar nauyi mai ɗaukar nauyi (mai zurfin tsagi ball bearing) raka'a: um nominal bearing model diamita d (mm) (N) gyare-gyaren gwajin ƙyalli zuwa C2 C3 C4 C510 talakawa (ciki har da) 18 24.549 147 3 ~ 4 4 ~ 5 6 ~ 8 45 8 4 6 9 Afrilu 9 Afrilu 6 92.2 zaɓin izinin izinin aiki mai gudana, saboda dacewa da yanayin zafi akan dalilai na ciki da na waje, gabaɗaya sun yi ƙasa da izinin farko.Tsare-tsare na aiki yana da alaƙa ta kud da kud da rayuwa mai ɗaukar nauyi, hauhawar zafin jiki, girgiza da hayaniya, don haka dole ne a saita shi zuwa mafi kyawun yanayi.
Maganar ka'ida, lokacin da ɗaukar nauyi yana aiki, tare da ƙarancin izinin gudu mara kyau, rayuwar ɗaukar nauyi tana da iyaka.Amma yana da matukar wahala a kula da wannan mafi kyawu.Tare da canje-canjen yanayin sabis, ƙaddamarwa mara kyau na ƙaddamarwa zai karu daidai, wanda zai haifar da raguwa mai mahimmanci na rayuwa ko samar da zafi.Sabili da haka, an saita sharewar farko don zama ɗan girma fiye da sifili.FIG.2 bambance-bambancen radiyo mai ɗaukar nauyi 2.3 Ma'auni na zaɓi don ba da izini bisa ka'ida, ana haɓaka rayuwa mai ɗaukar nauyi lokacin da aka sami ƙarancin izinin aiki a ƙarƙashin yanayin aiki mai aminci.Amma a aikace, yana da matukar wahala a kula da wannan kyakkyawan yanayin.Da zarar wasu sharuɗɗan sabis sun canza, ƙarancin izini zai ƙaru, yana haifar da raguwa mai mahimmanci wajen ɗaukar rayuwa ko dumama.Sabili da haka, lokacin da ake zaɓin izinin farko, ana buƙatar izinin aiki ya zama ɗan girma fiye da sifili kawai.
Don bearings a ƙarƙashin yanayi na al'ada, za a karɓi daidaitawar lodi na gama gari.Lokacin da sauri da zafin jiki suka kasance na al'ada, yakamata a zaɓi madaidaicin izinin gama gari don samun izinin aiki da ya dace.Tebur na 6 na yau da kullun na yau da kullun misali ta amfani da sharuɗɗan da suka dace da izinin izini a ƙarƙashin nauyi mai nauyi, nauyin tasiri, tsangwama tare da babban adadin abin hawa na jirgin ƙasa C3 allon girgiza C3 da C4 ba za su iya ɗaukar nauyin jagora ba, ciki da waje da da'irar C4 tarakta sun ɗauki a tsaye tare da Railway abin hawa gogayya mota, mai ragewa ko C4 ɗauke da ciki zobe zafi takarda inji, bushewa C3 da C4 niƙa abin nadi kun C3 don rage jujjuyawar juyi da kuma amo na micro-motor C2 daidaita daidaitawa da sarrafa vibration na shaft NTN spindle (biyu jere cylindrical nadi. mai ɗaukar nauyi) C9NA, C0NA.
Lokacin aikawa: Yuli-30-2020