Iindawo ezininzi zeiigiya ezintsha zokunciphisa amandlakwayeizixhobo zemotoIprojekthi idinga 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 okudutyulwa, 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 sibandakanya ukudubula kocingo lwentsimbi, ukudubula 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 iBanga lesi-2, ubunzima bomhlaba ngu-710HV30, kwaye ubunzulu obusebenzayo bobunzima buyi-0.65mm, konke ngaphakathi kweemfuno zobugcisa. Uburhabaxa bomphezulu wezinyo phambi kokudubula ukuchama buboniswe kwiTheyibhile 3, kwaye ukuchaneka kweprofayili yezinyo kuboniswe kwiTheyibhile 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 kwembumbulu eqinisekisiweyo. Jonga iTheyibhile yesi-2 ngeskim sovavanyo. Inkqubo yokuzimisela ethile yeeparamitha zovavanyo ngolu hlobo lulandelayo: zoba igophe lokugcwalisa (Umfanekiso 3) ngovavanyo lwekhuphoni lwe-Almen ukumisela indawo yokuzalisa, ukuze utshixe uxinzelelo lomoya olucinezelekileyo, ukuhamba kwentsimbi, ukuhamba kwesantya sombhobho, umgama wombhobho ukusuka kumacandelo kunye nezinye izixhobo.

iziphumo zovavanyo

Idata 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 igophe leprofayili yezinyo lijika libe yi-concave ne-convex emva kokudubula ukuchama. Umlinganiselo woburhabaxa emva kokutshiza kuburhabaxa phambi kokutshiza usetyenziswa ukubonisa 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 siqonde ngokupheleleyo ukukhulisa shot peening phezu uburhabaxa umphezulu izinyo kunye nokwandisa inani iisampulu, 5 izinto, 5 iintlobo kunye 44 iinxalenye zizonke, zakhethwa ukulandelela uburhabaxa phambi nasemva shot peening phantsi kweemeko ibhetshi imveliso shot inkqubo peening. Jonga iTheyibhile 5 ngolwazi oluphathekayo kunye neekhemikhali kunye nolwazi lwenkqubo yokuchama yamalungu alandelelweyo emva kokusila izixhobo. Uburhabaxa kunye nedatha yokukhulisa izinyo ngaphambili nangasemva phambi kokuba udutyulwe uchama zibonisiwe kumfanekiso 4. Umzobo 4 ubonisa ukuba uluhlu loburhabaxa umphezulu izinyo phambi kokuba udutyulwe ukuchama yi Rz1.6 μ m-Rz4.3 μ m; Emva udubulo peening, uburhabaxa kwandisa, kunye noluhlu lokusasaza yi Rz2.3 ukurhabaxa kungaba Rz2.3 ubuninzi can be μ; ukuya kumaxesha ama-3.1 phambi kokuba udutyulwe uchama.

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 zeendawo ngaphambi kokuba udubule uchama kunye nenkqubo yokuchama iparameters iya kuchaphazela uburhabaxa emva kokuchama edutyulwe, njengoko kudweliswe kwiThebhile 6. KwiCandelo lesi-3 leli phepha, phantsi kweemeko ezine zenkqubo, uburhabaxa bomphezulu wezinyo emva kokuchama kwanda ukuya kumaqondo ahlukeneyo. Kolu vavanyo, kukho izinto ezimbini eziguquguqukayo, ezizezi, uburhabaxa bangaphambili kunye neeparamitha zenkqubo (amandla okugcwalisa okanye ukugquma), ezingakwaziyo ukumisela ngokuchanekileyo ubudlelwane phakathi koburhabaxa besithuba sokudubula kunye nefuthe ngalinye. 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.

Ngokusekelwe kumava okwenene kunye nophando lwabanye abaphengululi, iimowudi zempembelelo yezinto ezahlukeneyo zinokuqikelelwa njengoko kubonisiwe kwiThebhile 6. Kungabonwa ukuba uburhabaxa emva kokudubula ukuchama buchatshazelwa ngokubanzi yimiba emininzi, ekwayiyo imiba ephambili echaphazela uxinzelelo olushiyekileyo 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 uphuhliso lwesantya 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 kweemeko zokusebenza ezinjalo, impembelelo yokunyuka kwamazinyo aphezulu 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;

◆ Umphezulu izinyo uburhabaxa emva shot ukuchama kungaphuculwa ngokulungiselela imbumbulu inkqubo parameters peening, udubulo Composite ukuchama, ukongeza yokugulisa okanye ukuhoya simahla emva udubulo peening, etc. Ukulungelelaniswa kwenkqubo yokukroba iparameters yenkqubo kulindeleke ukuba ilawulwe ukurhabaxa ukukhulisa ukuba malunga 1.5 amaxesha.