Iindawo ezininzi zeiigiya ezintsha zokunciphisa amandlakwayeizixhobo zemotoIprojekthi ifuna ukudubula kwe-peening emva kokusila kwegiya, okuya kuthoba umgangatho wezinyo, kwaye kuchaphazele nokusebenza kwe-NVH yenkqubo.Eli phepha liphonononga uburhabaxa bomphezulu wezinyo kwiimeko ezahlukeneyo zenkqubo yokuchama kunye neendawo ezahlukeneyo ngaphambi nasemva kokuchama.Iziphumo zibonisa ukuba ukudubula ukuchama kuya kwandisa uburhabaxa bomphezulu wezinyo, oluchatshazelwa ziimpawu zamalungu, iiparamitha zenkqubo yokuchama udubulo kunye nezinye izinto;Phantsi kweemeko zenkqubo yokuveliswa kwebhetshi ekhoyo, uburhabaxa bomphezulu bamazinyo obuphezulu emva kokukroba kokudubula yi-3.1 phinda-phinda phambi kokuba udutyulwe uchama.Impembelelo yoburhabaxa bezinyo kumphezulu wokusebenza kwe-NVH kuxoxwe ngayo, kwaye imilinganiselo yokuphucula uburhabaxa emva kokukroba kokudubula kucetywayo.

Ngaphantsi kwemvelaphi engasentla, eli phepha lixoxa ngezi nkalo zintathu zilandelayo:

Impembelelo yenkqubo yokuchama iiparamitha kuburhabaxa bomphezulu wamazinyo;

Iqondo lokukhulisa ukudubula kokukroba kumphezulu wezinyo phantsi kweemeko ezikhoyo zenkqubo yokuvelisa;

Impembelelo yokwanda koburhabaxa bomphezulu wamazinyo ekusebenzeni kwe-NVH kunye nemilinganiselo yokuphucula uburhabaxa emva kokuchama kokudubula.

Ukukroba kubhekisa kwinkqubo apho uninzi lweeprojectiles ezincinci ezinobunzima obuphezulu kunye nentshukumo yesantya esiphezulu zibethe umphezulu wamalungu.Ngaphantsi kwempembelelo yesantya esiphezulu seprojekthi, umphezulu wenxalenye uya kuvelisa imigodi kunye nokuguqulwa kweplastiki kuya kwenzeka.Imibutho ejikeleze imigodi iya kuxhathisa le deformation kwaye ivelise intsalela yoxinzelelo loxinzelelo.Ukugqithwa kwemingxuma emininzi kuya kwenza i-uniform residual compressive stress layer phezu kwendawo, ngaloo ndlela kuphuculwe amandla okukhathala kwenxalenye.Ngokwendlela yokufumana isantya esiphezulu ngokudutyulwa, ukukroba okudutyulwe ngokuqhelekileyo kwahlulahlulwe kwaba kukukroba komoya ocinezelweyo kunye nokukroba okuphakathi, njengoko kubonisiwe kuMfanekiso 1.

Ukudubula komoya ocinezelweyo kuthatha umoya oxinanisiweyo njengamandla okutshiza umpu ukusuka kumpu;I-Centrifugal shot blasting isebenzisa i-motor ukuqhuba i-impeller ukujikeleza ngesantya esiphezulu ukuphosa ukudubula.Iiparamitha ezingundoqo zenkqubo yokuchama zibandakanya ukomelela, ukugquma nokudutyulwa kweempawu eziphakathi (izinto eziphathekayo, ubungakanani, imilo, ubulukhuni).Amandla okuzalisa yiparameter ukubonisa amandla okudubula okufota, abonakaliswa bubude be-arc (okt iqondo lokugoba lwesiqwenga sovavanyo lwe-Almen emva kokukroba kokudubula);Umyinge wokugquma ubhekiselele kumlinganiselo wendawo egqunywe ngumngxuma emva kokuba udubulo lukrobile kummandla opheleleyo wendawo yokudubula;Isixhobo esiqhelekileyo sokudubula i-peening media sibandakanya ukudubula kwentsimbi, ukudubulwa kwentsimbi, ukudubula kweseramikhi, ukudubula kweglasi, njl.Iimfuno zenkqubo jikelele zothumelo lwezixhobo zeshaft ziboniswa kwiThebhile 1.

Inxalenye yovavanyo yi-shaft gear ephakathi ye-1/6 yeprojekthi ye-hybrid.Isakhiwo segiya siboniswe kuMzobo 2. Emva kokugaya, i-microstructure yezinyo kwiBanga lesi-2, ubunzima bomhlaba ngu-710HV30, kwaye ubunzulu obusebenzayo bobunzima buyi-0.65mm, konke ngaphakathi kweemfuno zobugcisa.Uburhabaxa bomphezulu wezinyo phambi kokuba udutyulwe ukuchama buboniswe kwiTheyibhile 3, kwaye ukuchaneka kweprofayili yezinyo kuboniswe kwiThebhile 4. Ingabonwa ukuba uburhabaxa bomphezulu wezinyo phambi kokuba udutyulwe ukuchama bulungile, kwaye ijika leprofayili yezinyo ligudile.

Isicwangciso sovavanyo kunye neeparamitha zovavanyo

Umatshini wokucoca umoya oxinisiweyo usetyenziswa kuvavanyo.Ngenxa yeemeko zovavanyo, akunakwenzeka ukuba uqinisekise ifuthe leepropathi zokudubula okuphakathi (izinto eziphathekayo, ubungakanani, ubulukhuni).Ke ngoko, iipropathi ze-shot peening medium zihlala kuvavanyo.Kuphela ziimpembelelo zamandla okuzalisa kunye nokugqunywa kuburhabaxa bomphezulu wamazinyo emva kokuchama okudutyulwayo okuqinisekisiweyo.Jonga iTheyibhile yesi-2 ngeskim sovavanyo.Inkqubo yokumisela iparameters yovavanyo ngolu hlobo lulandelayo: zoba ijiko lokuzalisa (umzobo 3) ngovavanyo lwekhuphoni ye-Almen ukumisela indawo yokuzalisa, ukuze utshixe uxinzelelo lomoya ocinezelweyo, ukuhamba kwentsimbi, ukuhamba kwesantya somlomo, umgama wombhobho ukusuka kwiindawo. kunye nezinye izixhobo zokusebenza.

iziphumo zovavanyo

Idatha yoburhabaxa bomphezulu wezinyo emva kokuchama iboniswe kwiTheyibhile 3, kwaye ukuchaneka kweprofayili yezinyo kuboniswe kwiTheyibhile 4. Ingabonwa ukuba phantsi kweemeko ezine zokuchama, uburhabaxa bomphezulu wezinyo buyanda kwaye ijika leprofayili yezinyo liyajika kwaye i-convex emva kokuchama.Umlinganiselo woburhabaxa emva kokutshiza kuburhabaxa phambi kokutshiza usetyenziselwa ukubonakalisa ukurhabaxa (Itheyibhile 3).Kungabonwa ukuba ukukhulisa uburhabaxa kwahlukile phantsi kweemeko ezine zenkqubo.

Ibhetshi yokuKhangela ngokuKhuliswa koBuburhabaxa beZinyo ngokuPeenna ngokudutyulwa

Iziphumo zovavanyo kwiCandelo lesi-3 zibonisa ukuba uburhabaxa bomphezulu wezinyo buyanda ngamaqondo ahlukeneyo emva kokuba udubulo luchama ngeenkqubo ezahlukeneyo.Ukuze uqonde ngokupheleleyo ukukhulisa udubulo oluchamayo kuburhabaxa bomphezulu wezinyo kunye nokwandisa inani leesampuli, izinto ezi-5, iintlobo ezi-5 kunye neenxalenye ezingama-44 zizonke, zakhethwa ukulandelela uburhabaxa ngaphambi nasemva kokudubula ukukroba phantsi kweemeko zokudubula kwemveliso yebhetshi. inkqubo yokuchama.Jonga iTheyibhile 5 ngolwazi oluphathekayo kunye neekhemikhali kunye nolwazi lwenkqubo yokuchama yamalungu alandelelweyo emva kokusila izixhobo.Uburhabaxa kunye nedatha yokukhulisa izinyo zangaphambili nezingemva phambi kokuba udutyulwe ukrobe zibonisiwe kumfanekiso 4. Umzobo 4 ubonisa ukuba uluhlu loburhabaxa bomphezulu wezinyo phambi kokuba udutyulwe lichane yi-Rz1.6 μ m-Rz4.3 μ m; uburhabaxa buyanda, kwaye uluhlu losasazo yi-Rz2.3 μ m-Rz6.7 μ m; Uburhabaxa obukhulu bunokwandiswa ukuya kumaxesha angama-3.1 ngaphambi kokuba udubule ukrobe.

Iimpembelelo zokurhabaxa komphezulu wamazinyo emva kokuchama

Inokubonwa kumgaqo wokudubula ukukroba ukuba ubulukhuni obuphezulu kunye nesantya esiphezulu sokudubula okuhambayo kushiya imingxuma engenakubalwa kumphezulu wenxalenye, engumthombo woxinzelelo oluyintsalela yoxinzelelo.Kwangaxeshanye, le mingxuma ibopheleleke ukuba yandise uburhabaxa bomphezulu.Iimpawu zamacandelo phambi kokuba udubulo uchama kunye nenkqubo yokuchama iparameters iyakuchaphazela uburhabaxa emva kokuchama, njengoko kudweliswe kwiTheyibhile 6. KwiCandelo lesi-3 leli phepha, phantsi kweemeko ezine zenkqubo, uburhabaxa bomphezulu wezinyo emva kokuchama kwanda ukuya amanqanaba ahlukeneyo.Kolu vavanyo, kukho izinto ezimbini eziguquguqukayo, ezizezi, uburhabaxa bangaphambili kunye neeparamitha zenkqubo (amandla okuzalisa okanye ukugquma), ezingakwaziyo ukumisela ngokuchanekileyo unxulumano phakathi koburhabaxa besithuba sokudubula kunye nento nganye ephembelelayo.Okwangoku, abaphengululi abaninzi baye benza uphando malunga noku, kwaye babeka phambili imodeli yengqikelelo yethiyori yoburhabaxa bomphezulu emva kokudubula okusekwe kukulinganisa okulinganiselweyo, okusetyenziselwa ukuqikelela amaxabiso arhabaxa ahambelanayo eenkqubo ezahlukeneyo zokukroba.

Ngokusekwe kumava okwenene kunye nophando lwabanye abaphengululi, iimowudi zeempembelelo zezinto ezahlukeneyo zinokuqikelelwa njengoko kubonisiwe kwiTheyibhile 6. Kungabonwa ukuba uburhabaxa emva kokudubula ukuchama buchatshazelwa ngokupheleleyo zizinto ezininzi, ezikwayizona zinto ziphambili. echaphazela intsalela yoxinzelelo loxinzelelo.Ukuze kuncitshiswe uburhabaxa emva kokudubula ukukroba kwisiseko sokuqinisekisa ukucinezeleka okushiyekileyo, inani elikhulu leemvavanyo zenkqubo liyafuneka ukuqhubeka nokwandisa indibaniselwano yeparameter.

Impembelelo yoburhabaxa bezinyo kumphezulu wokusebenza kwe-NVH yenkqubo

Amalungu eGear akwinkqubo yokuhanjiswa okuguquguqukayo, kwaye uburhabaxa bezinyo buya kuchaphazela ukusebenza kwabo kwe-NVH.Iziphumo zovavanyo zibonisa ukuba phantsi komthwalo kunye nesantya esifanayo, ubukhulu be-roughness yomhlaba, ukunyakaza okukhulu kunye nengxolo yenkqubo;Xa umthwalo kunye nesantya zinyuka, ukungcangcazela kunye nengxolo kuyanda ngokucacileyo.

Kwiminyaka yakutshanje, iiprojekthi zokunciphisa amandla amatsha ziye zanda ngokukhawuleza, kwaye zibonisa indlela yokuphuhliswa kwesantya esiphezulu kunye ne-torque enkulu.Okwangoku, i-torque ephezulu yokunciphisa amandla ethu amatsha yi-354N · m, kwaye isantya esiphezulu yi-16000r / min, eya kwandiswa ibe ngaphezu kwe-20000r / min kwixesha elizayo.Ngaphantsi kwezo meko zokusebenza, impembelelo yokunyuka kwamazinyo angaphezulu kwintsebenzo ye-NVH yenkqubo kufuneka ithathelwe ingqalelo.

Amanyathelo okuphucula uburhabaxa bomphezulu wamazinyo emva kokuchama

Inkqubo yokukroba emva kokugaya igiya inokuphucula amandla okudinwa komphezulu wezinyo legiya kunye namandla okudinwa okugoba kweengcambu zezinyo.Ukuba le nkqubo kufuneka isetyenziswe ngenxa yezizathu zamandla kwinkqubo yoyilo lwegiya, ukuze kuqwalaselwe ukusebenza kwe-NVH yenkqubo, uburhabaxa bendawo yezinyo legiya emva kokukroba kokudubula kunokuphuculwa kwezi nkalo zilandelayo:

a.Lungiselela inkqubo yokuchama iparameters, kwaye ulawule ukukhulisa uburhabaxa bomphezulu wamazinyo emva kokuba udubulo luchama kwindawo yokuqinisekisa uxinezeleko olushiyekileyo.Oku kufuna iimvavanyo ezininzi zenkqubo, kwaye inkqubo ye-versatility ayinamandla.

b.Inkqubo yokuchama edityanisiweyo iyamkelwa, oko kukuthi, emva kokuba ukuchama kwamandla okuqhelekileyo kugqityiwe, enye i-shot peening yongezwa.Amandla enkqubo yokuchama eyandisiweyo adla ngokuba ncinci.Uhlobo kunye nobukhulu bezinto zokudubula zinokuhlengahlengiswa, ezifana ne-ceramic shot, i-glass shot okanye i-steel cut shot shot kunye nobukhulu obuncinci.

c.Emva kokudubula ukuchama, iinkqubo ezinje ngokugudiswa komphezulu wamazinyo kunye ne-honing yasimahla iyongezwa.

Kweli phepha, uburhabaxa umphezulu izinyo iimeko ezahlukeneyo shot inkqubo peening kunye neenxalenye ezahlukeneyo phambi nasemva shot ukuchama kuphononongwa, kwaye ezi zigqibo zilandelayo zithathwa ngokusekelwe kuncwadi:

◆ Shot peening kuya kwandisa uburhabaxa umphezulu izinyo, nto leyo echatshazelwa iimpawu iindawo phambi kokuba udutyulwe peening, shot inkqubo peening parameters kunye nezinye izinto, kwaye ezi zinto zikwayimiba ephambili echaphazela intsalela yoxinzelelo loxinzelelo;

◆ Phantsi kweemeko zenkqubo yokuveliswa kwebhetshi esele ikho, uburhabaxa obukhulu kumphezulu wamazinyo emva kokuchama buyi-3.1 phinda-phinda phambi kokuba udutyulwe uchama;

◆ Ukwanda koburhabaxa bomphezulu wamazinyo kuya kwandisa ukungcangcazela kunye nengxolo yesixokelelwano.Okukhona i-torque enkulu kunye nesantya, kokukhona kucaca ngakumbi ukwanda kokungcangcazela kunye nengxolo;

◆ Uburhabaxa bomphezulu wezinyo emva kokuchama lunokuphuculwa ngokulungisa inkqubo yokukroba iparameters, ukudubula okuhlanganisiweyo ukuchama, ukongeza ukugulisa okanye ukuhoya ngokukhululekileyo emva kokukroba, njl njl. malunga 1.5 amaxesha.