Amalungu e-shaft yenye yeendawo eziqhelekileyo ezihlala zidibana koomatshini.Isetyenziselwa ikakhulu ukuxhasa u-zero wothumelo

Amacandelo, ukuhambisa i-torque kunye nomthwalo webhere.Amalungu e-Shaft ajikelezayo ubude bawo bukhulu kunobubanzi, kwaye ngokuqhelekileyo aqulunqwe ngumphezulu we-cylindrical wangaphandle, umphezulu we-conical, umngxuma ongaphakathi kunye nentambo ye-shaft concentric kunye nesiphelo somphezulu ohambelanayo.Ngokwemilo eyahlukeneyo yolwakhiwo, iinxalenye zeshaft zinokwahlulwa zibe ziishafti zamehlo, i-shafts stepped, shafts hollow and crankshafts.

Iishafu ezinomlinganiselo wobude ukuya kobubanzi obungaphantsi kwesi-5 zibizwa ngokuba ziishafu ezimfutshane, yaye ezo ezinomlinganiselo ongaphezu kwama-20 zibizwa ngokuba ziishafu ezibhityileyo.Uninzi lweeshafti ziphakathi kwezi zimbini.

I-shaft ixhaswa yi-bearing, kwaye icandelo le-shaft elihambelana ne-bearing libizwa ngokuba yijenali.Iijenali ze-Axle luphawu lokudityaniswa kweeshafti.Ukuchaneka kwabo kunye nomgangatho womphezulu ngokuqhelekileyo kuyadingeka ukuba ube phezulu.Iimfuno zabo zobugcisa zenziwe ngokubanzi ngokwemisebenzi ephambili kunye neemeko zokusebenza ze-shaft, ngokuqhelekileyo ezi zinto zilandelayo:

(1) Ukuchaneka komda.Ukuze unqume indawo ye-shaft, ijenali yokuthwala ngokuqhelekileyo idinga ukuchaneka okuphezulu kwe-dimensional (IT5 ~ IT7).Ngokubanzi, ukuchaneka komda kwejenali yeshaft yokuhlanganisa iindawo zothumelo kusezantsi kakhulu (IT6～IT9).

(2) Ukuchaneka kwemilo yejiyometri Ukuchaneka kwemilo yejometri yamalungu eshaft ikakhulu ibhekisa kububanzi, isilinda, njl.njl. kwijenali, ikhowuni yangaphandle, umngxuma we-Morse taper, njl. Ngokuqhelekileyo, ukunyamezela kufuneka kuthintelwe ngaphakathi koluhlu lonyamezelo lwe-dimensional.Kwiindawo ezijikelezayo zangaphakathi nangaphandle ezineemfuno ezichanekileyo ezichanekileyo, ukuphambuka okuvumelekileyo kufuneka kumakishwe kumzobo.

(3) Ukuchaneka kwendawo ehambelanayo Iimfuno zokuchaneka kwendawo yeendawo ze-shaft zigqitywa ngokukodwa ngokuma kunye nomsebenzi we-shaft kumatshini.Ngokubanzi, kuyimfuneko ukuba kuqinisekiswe iimfuno ze-coaxiality zejenali ye-shaft yeengxenye zothumelo ezidibeneyo kwijenali ye-shaft exhasayo, kungenjalo iya kuchaphazela ukuchaneka kokuhanjiswa kweendawo zothumelo (iigiya, njl. njl.) kwaye zivelise ingxolo.Kwiishafu ezichanekileyo eziqhelekileyo, ukuphuma kwe-radial yecandelo leshaft ehambelanayo kwijenali exhasayo ngokuqhelekileyo yi-0.01～0.03mm, kwaye iishafti ezichanekileyo eziphezulu (ezifana neeshaft eziphambili) zihlala ziyi-0.001～0.005mm.

(4) Uburhabaxa bomphezulu Ngokubanzi, uburhabaxa bomphezulu bedayamitha yeshafti ehambelana nenxalenye yothumelo yiRa2.5 ~0.63μm, kunye noburhabaxa bomphezulu bedayamitha yeshafti exhasayo edityaniswe nebheringi yiRa0.63～0.16μm.

Izithuba kunye nezixhobo zamalungu asongiweyo eshaft
(1) I-shaft parts blanks I-shaft parts ingakhethwa njengee-blanks, i-forgings kunye nezinye iifom ezingenanto ngokweemfuno zokusetyenziswa, iintlobo zemveliso, iimeko zezixhobo kunye nesakhiwo.Kwiishafu ezinomahluko omncinci kububanzi bangaphandle, izixhobo zebar zisetyenziswa ngokubanzi;kwi-shafts stepped okanye i-shafts ebalulekileyo ene-diameters enkulu yangaphandle, i-forgings isoloko isetyenziswa, egcina izinto eziphathekayo kunye nokunciphisa umsebenzi womatshini.Ukuphucula iimpawu zoomatshini.

Ngokwezikali ezahlukeneyo zemveliso, zimbini iintlobo zeendlela zokubumba ezingenanto: ukufoja simahla kunye nokufakela ukwenza.Ukwenziwa kwasimahla kusetyenziswa kakhulu kwimveliso yebhetshi encinci naphakathi, kwaye i-die forging isetyenziselwa imveliso yobuninzi.

(2) Izinto eziphathekayo zamacandelo e-shaft Amalungu e-Shaft kufuneka akhethe izixhobo ezahlukeneyo kwaye amkele imilinganiselo yonyango yokushisa ehlukeneyo (njengokucima kunye nokufudumala, ukulinganisa, ukucima, njl. .

Intsimbi ye-45 yinto eqhelekileyo yeengxenye ze-shaft.Ixabiso eliphantsi kwaye emva kokucima kunye nokufudumeza (okanye ukuqhelanisa), inokufumana umsebenzi ongcono wokusika, kwaye inokufumana iimpawu ezibanzi zoomatshini ezifana namandla aphezulu kunye nokuqina.Emva kokucima, ubunzima bomphezulu bunokuba ukuya kuthi ga kwi-45 ~ 52HRC.

I-alloy structural steel efana ne-40Cr ifanelekile kwiindawo ze-shaft kunye nokuchaneka okuphakathi kunye nesantya esiphezulu.Emva kokucima kunye nokutshisa kunye nokucima, olu hlobo lwentsimbi luneempawu ezingcono zoomatshini.

Ukuthwala i-GCr15 yensimbi kunye nentsimbi ye-spring 65Mn, emva kokucima kunye nokufudumala kunye nokucima i-high-frequency quenching, ubunzima bomhlaba bunokufikelela kwi-50-58HRC, kwaye inokumelana nokudinwa okuphezulu kunye nokumelana nokunxiba okulungileyo, okunokusetyenziswa ukwenza i-shafts ephezulu echanekileyo.

I-shaft ephambili yesixhobo somshini wokuchaneka (njenge-shaft wheel shaft ye-grinder, i-spindle ye-jig boring machine) ingakhetha i-38CrMoAIA insimbi ye-nitride.Emva kokucima kunye nokufudumeza kunye ne-nitriding yomhlaba, le ntsimbi ayinakufumana kuphela ubunzima obuphezulu bomhlaba, kodwa iphinde igcine i-core ethambileyo, ngoko inokumelana nempembelelo elungileyo kunye nokuqina.Xa kuthelekiswa ne-carburized kunye nentsimbi eqinile, ineempawu ze-deformation encinci yonyango lokushisa kunye nobunzima obuphezulu.

I-45 insimbi isetyenziswa ngokubanzi kwimveliso yoomatshini, kunye neempawu zomatshini zale ntsimbi zihle kakhulu.Kodwa le yintsimbi yekhabhoni ephakathi, kwaye ukusebenza kwayo kokucima akulunganga.No. 45 intsimbi ingacinywa ukuba HRC42 ~ 46.Ngoko ke, ukuba ubunzima bomphezulu bufunekayo kunye neempawu eziphezulu ze-45 # zensimbi ezifunwayo, ubuso bentsimbi ye-45 # buhlala bucinywa (ukucinywa kwe-high-frequency quenching okanye ukucima ngokuthe ngqo), ukwenzela ukuba ubunzima obufunekayo bufumaneke.

Qaphela: No. 45 intsimbi kunye nobubanzi be-8-12mm ixhomekeke kwiintanda ngexesha lokucima, okuyingxaki enzima kakhulu.Amanyathelo angoku awamkelweyo aphazamiseka ngokukhawuleza isampuli emanzini ngexesha lokucima, okanye ukupholisa ioli ukuphepha ukuqhekeka.

Inombolo yeSizwe yaseTshayina yeNombolo ye-45 No. UNS Standard No. GB ​​699-88

Ukwakheka kweekhemikhali (%) 0.42-0.50C, 0.17-0.37Si, 0.50-0.80Mn, 0.035P, 0.035S, 0.25Ni, 0.25Cr, 0.25Cu

Imilo ye-ingot, i-billet, ibha, ityhubhu, ipleyiti, imeko ye-strip ngaphandle konyango lobushushu, i-annealing, normalizing, ukushisa okuphezulu

Amandla okuqina Mpa 600 Amandla esivuno uMpa 355 Elongation% 16

Ukusonga kwintsimi yokulungiswa kwesikhunta
Imodeli yokusetyenziswa kwe-welding ye-mold ye-45 yensimbi yile: CMC-E45

Yintonga yokuwelda kuphela yentsimbi enobunzima obuphakathi obuneempawu ezibophelelayo ezifanelekileyo, ezifanelekileyo kwintsimbi epholileyo yomoya, intsimbi etyhidiweyo: njenge-ICD5, 7CrSiMnMoV ... njl njl. iindawo ezoluliweyo, kwaye zingasetyenziselwa ukuveliswa komphezulu oqinileyo.

Ukongeza, kukho ezinye izinto ekufuneka uziqwalasele xa usebenzisa:

1. Ngaphambi kokwakhiwa kwindawo emanzi, i-electrode kufuneka yomiswe kwi-150-200 ° C imizuzu engama-30-50.

2. Ngokuqhelekileyo ukufudumala ngaphezu kwe-200 ° C, ukupholisa umoya emva kwe-welding, ukukhululeka koxinzelelo kungcono xa kunokwenzeka.

3. Apho i-welding ye-multilayer surfacing ifunwa, sebenzisa i-CMC-E30N njenge-primer ukuze ufumane umphumo ongcono we-welding.

Ubunzima HRC 48-52

Izithako eziphambili Cr Si Mn C

Uluhlu lwangoku olusebenzayo:

Ububanzi kunye nobude m / m 3.2 * 350mm 4.0 * 350mm
I-45 gauge yentsimbi yomzi-mveliso wethu isetyenziselwa ukwenza isiseko sokungundangundo.