Ibyingenzi

Ntibishobora kuvugwa ko urudodo rusanzwe hamwe nu rudodo rwasubiwemo umwobo, ariko bolt isanzwe hamwe nu mwobo wongeyeho, kubera ko igice cyurudodo rwibiri ari kimwe, itandukaniro nuko igice cyinkoni idafite umugozi.Kuberako igice cyurudodo ari kimwe, imbaraga za axial nimwe.Hariho intera hagati yinkoni isanzwe igice cya bolt isanzwe nu mwobo, kandi imbaraga zo guhinduranya nizo ngingo yo guterana hejuru gusa aho ihurira (birumvikana, niba utekereza rwose guca, imbaraga zinyuranye ni mubyukuri gukata imbaraga za bolt).Ihuza ry'umwobo wahinduwe hamwe n'umwobo ni ukwihanganirana, kandi imbaraga zo guhinduranya ni imbaraga zo gukata z'umwobo wahinduwe.

Reba hanze

bm = 1d ibyuma bibiri bikoreshwa muburyo bwo guhuza ibice bibiri bihujwe nicyuma;TB n'umuringa, aho d yerekeza diameter yo hanze yumurongo, yerekeza kuri diameter nini.)

bm = 1.25d na bm = 1.5d ibyuma bibiri bikoreshwa muburyo busanzwe bwo guhuza ibyuma bihuza ibyuma hamwe nu byuma;GB898-1988 “Sitidiyo ebyiri bm = 1.25d”, GB899-1988 “Sitidiyo ebyiri bm = 1.5d”.

bm = 2d ikubye kabiri ikoreshwa mubusanzwe ihuza aluminium alloy ihuza hamwe nicyuma.Ihuza ryambere ryatanzwe nu mwobo wimbere, hanyuma uwanyuze mu mwobo.GB / T900-1988 “Sitidiyo ebyiri bm = 2d”.

Utudodo ku mpande zombi z'uburebure buringaniye bwa sitidiyo ebyiri zigomba guhuzwa nimbuto nogeshe kubice bibiri bihujwe hamwe nu mwobo. uburebure bubiri bubiri Icyiciro C ”.Impera imwe ya sitidiyo yo gusudira irasudwa hejuru yikigice cyahujwe, naho iyindi mpera (iherezo ryurudodo) inyura mugice cyahujwe nu mwobo unyuramo, hanyuma isabune igashyirwa, hanyuma ibinyomoro bikabikwa hejuru, bityo ko ibice bibiri bihujwe bihujwe muri rusange.GB / T902.1 “Sitidiyo yo gusudira yo gusudira intoki”, GB / T902.2 “Sitidiyo yo gusudira yo gusudira arc”, GB / T902.3 igihe gito ard studio gusudira ”.

Icyitonderwa:

Urudodo rukoreshwa kumurongo ibiri (GB / T897-900) muri rusange ni urudodo rusanzwe, kandi urudodo rwiza rusanzwe cyangwa urudodo rukwiranye narwo rushobora gukoreshwa ukurikije ibikenewe (ukurikije GB1167 / T-1996 "inzibacyuho ikwiranye ”).Uburebure bungana bubiri bwa sitidiyo -B urwego, rushobora gukoreshwa ukurikije ibikenewe30Cr, 40Cr, 30CrMnSi, 35CrMoA40MnA cyangwa 40B gukora ibikoresho, imikorere yabyo ukurikije amasezerano hagati yabatanga nibisabwa.Ibikoresho byo gusudira ibikoresho bya sitidiyo, ukurikije GB / T3098 .1-2010 ibiteganijwe, ariko ibyinshi bya karubone ntibigomba kurenza 0,20%, kandi ntibigomba gukorwa mubyuma byo gukata kubuntu.

6. Gukomera: Ubushobozi bwibikoresho byo kurwanya ibintu bikomeye byaho bikandagiye hejuru yacyo ni igipimo cyerekana imikorere yerekana urugero rwubworoherane nubukomezi bwibikoresho byicyuma.Ikizamini bisobanura-gukomera (Brinell, Rockwell, Vickers) Ibisabwa byo gutegura icyitegererezo: Impera zombi z'icyitegererezo zirasa, ubuso burasa, kandi nta mavuta cyangwa okiside byemewe

Ibidukikije 10 ~ 35 °

Mugushakisha gukomera kwa bolt, nta kuvura ubushyuhe bwa bolts, gusa ukeneye gukora ubukana bwubuso, muri ange yujuje ibyangombwa kumurongo.Niba ari ubushyuhe bwo kuvura ubushyuhe, birakenewe guca ubukana hejuru ya diameter kumpera.Umwanya wikizamini urerekanwa mumashusho.Ikizamini cyo gukomera kiri kuri 1 / 2R hejuru, kandi gukomera byujuje ubuziranenge.

Ubukomezi bwa Bolt bufite ubuso hamwe ninturusu, ubuso bwerekeza kumikoreshereze ya Vickers cyangwa hejuru ya Rockwell gukomera nyuma yo gukuraho ingese yubuso, nibindi. Intangiriro igomba kuba mugukuraho umutwe wa 1/2 diametre igice kinini mubuso no hejuru 1/2 ahantu ho gukinira ubukana, itandukaniro riri hagati yubukomezi bubiri ntirishobora kurenga 30HV, ubuso buri hejuru ya 30HV byerekana ko ubuso bwa carburizing, butemewe, Niba ubuso buri munsi ya 30HV, bivuze ko ubuso bwa karuboni , kandi ntibyemewe.

Ibinyomoro rusange byibyiciro 8 bigomba kuvurwa nubushyuhe, ariko ntabushyuhe buvurwa, ibinyomoro bisanzwe byo mucyiciro cya 8 mubusanzwe bikozwe mubyuma 35, ikizamini cyo gukomera nacyo kirasobanuwe, ubuso rusange ntabwo busabwa, uruganda rutunganya ubushyuhe igerageza ubukana nyuma yo kuvura ubushyuhe, ibinyomoro bya metric muri rusange bimeneka hagati kugirango bigerageze ubukana bwumutima wacyo, ibinyomoro bya santimetero bimeneka kuri rimwe mumaso (ni ukuvuga guca ibyuma bibiri hejuru), gerageza ubukana rwagati rwigice cyubuso bumwe, kandi utubuto duto twambarwa mugice 0.2 ~ Gerageza ubukana nyuma ya 0.3mm.4.6 ~ 6.8 bolts ntabwo ikeneye kuvura ubushyuhe;Utondekanye kubwimbuto ndende ubwoko 2.

Igipimo cy’igihugu GB3098.1 hamwe n’igihugu rusange GB3098.3 giteganya ko ubukemurampaka bwapimwe kuri 1/2 radiyo yumusaraba wigice.Mugihe habaye impaka mugihe cyo kwemerwa, gukomera kwa Vickers bizakoreshwa nkikizamini nkemurampaka. Hagomba gufatwa nibura ibyasomwe 3 kuri buri cyitegererezo.

Ahantu ho gukorerwa ubukemurampaka: Iyo utanga raporo y'ibisubizo hagati yumuguzi nugurisha kubwimpamvu zubukemurampaka, ikizamini cyo gukomera gipimirwa kumwanya wo hagati (r / 2) wa radiyo yubuso bwaciwe na diametero imwe uvuye kumpera ya Bolt cyangwa sitidiyo.Niba ingano yibicuruzwa byemewe, fata ibyasomwe 4 kurangiza iyi bolt cyangwa sitidiyo.Ibicuruzwa bito bya diameter birashobora kandi kugeragezwa ukoresheje ubuso buringaniye bwubuso bwumutwe wa bolt uhuye nubuso bwaciwe hejuru.Kugirango ugerageze bisanzwe, ubukana bwa bolts, screw cyangwa sitidiyo birashobora kugeragezwa kumutwe, umurizo cyangwa shanki nyuma yo gukuramo neza.

Kubyiciro byose, niba igipimo cyikigereranyo kirenze urugero rwo hejuru rwubukomere, icyitegererezo kigomba kuvanwa kumwanya wa diameter nominal uhereye kumpera yikigereranyo, hamwe na centre yikigereranyo hamwe ninzira yumurongo kumurongo wo hagati wa ikizamini, agaciro ka retest ntigomba kurenza urugero rwo hejuru rwo gukomera, niba ushidikanya, gukomera kwa Vickers (HV) bigomba kwemerwa nkicyemezo.Ikizamini cyo hejuru gishobora kuboneka kumpera yibicuruzwa cyangwa ku nkombe ya hexagon, kandi aho ikizamini kigomba kuba hasi cyane cyangwa kigahanagurwa kugirango ikizamini gisubirwe hamwe nuburyo nyabwo bwubuso.HV0.3 ikoreshwa mugupima ubukemurampaka bwikizamini cyo hejuru.Ubukomere bwubuso bwageragejwe hamwe na HV0.3 bugereranwa nigiciro cyibanze cyo kugerageza agaciro nacyo cyageragejwe hamwe na HVo.3, kandi itandukaniro ntirishobora kurenza 30 HV gukomera.Ubuso bukomeye burenze ubwibanze bukomeye 30 HV indangagaciro zikomeye zerekana ko urugero rwakozwe.Kubicuruzwa bifite amanota 8.8 kugeza 12.9, itandukaniro riri hagati yubukomere bwubutaka hamwe nubukomezi bwibanze birashobora gukoreshwa kugirango hamenyekane niba ibicuruzwa bifite carburizing hejuru.Ubukomere bwibicuruzwa ntabwo bufitanye isano itaziguye nimbaraga za theoretical tensile strength.Igenamigambi ntarengwa ryagaciro ntirishingiye ku gusuzuma imbaraga zo hejuru.

Icyitonderwa: Twakwibutsa ko itandukaniro ryubwiyongere bwagaciro buterwa no kuvura ubushyuhe carburizing cyangwa gukora imbeho.