Chigawo cha shaft ndi chimodzi mwazinthu zomwe nthawi zambiri zimakumana ndi makina.Amagwiritsidwa ntchito makamaka kuthandizira kufalikira kwa zero

Zigawo, tumizani torque ndi katundu wa chimbalangondo.Mbali za shaft ndi magawo ozungulira omwe kutalika kwake ndi kwakukulu kuposa m'mimba mwake, ndipo nthawi zambiri amakhala ndi mawonekedwe akunja a cylindrical, conical surface, dzenje lamkati ndi ulusi wa shaft concentric ndi malo ofananirako.Malinga ndi mawonekedwe osiyanasiyana, ma shaft amatha kugawidwa kukhala ma shafts owoneka bwino, ma shaft opindika, ma shafts otsekeka ndi ma crankshafts.

Mipingo yokhala ndi chiŵerengero cha utali ndi m'mimba mwake yosakwana 5 imatchedwa mipingo yaifupi, ndipo imene ili ndi chiŵerengero choposa 20 imatchedwa mipingo yowonda.Mitsinje yambiri imakhala pakati pa ziwirizi.

Mtsinjewo umathandizidwa ndi kubereka, ndipo gawo la shaft lomwe likugwirizana ndi kubereka limatchedwa magazini.Mabuku a axle ndiye chizindikiro cha ma shafts.Kulondola kwawo ndi mawonekedwe a pamwamba nthawi zambiri amafunikira kuti akhale apamwamba.Zofunikira zawo zamaluso nthawi zambiri zimapangidwa molingana ndi ntchito zazikulu komanso momwe amagwirira ntchito shaft, nthawi zambiri zinthu izi:

(1) Kulondola kwa dimensional.Kuti mudziwe malo a shaft, magazini yonyamula nthawi zambiri imafuna kulondola kwambiri (IT5 ~ IT7).Nthawi zambiri, kulondola kwapang'onopang'ono kwa shaft magazine pakusonkhanitsira magawo opatsirana ndi otsika (IT6～IT9).

(2) Kulondola kwa mawonekedwe a geometric Kulondola kwa mawonekedwe a shaft makamaka kumatanthauza kuzungulira, cylindricity, ndi zina za magazini, chulucho chakunja, dzenje la Morse taper, ndi zina zambiri.Kwa malo ozungulira amkati ndi akunja okhala ndi zofunikira zolondola kwambiri, kupatuka kololedwa kuyenera kulembedwa pachithunzicho.

(3) Kulondola kwamalo ogwirizana Zofunikira zolondola za malo a shaft zimatsimikiziridwa makamaka ndi malo ndi ntchito ya shaft mu makina.Nthawi zambiri, ndikofunikira kuwonetsetsa zofunikira za coaxiality za shaft magazine ya magawo opatsirana osonkhanitsidwa ku magazini yothandizira shaft, apo ayi zitha kukhudza kulondola kwa magawo opatsirana (magiya, ndi zina) ndikupanga phokoso.Kwa ma shaft olondola wamba, kutha kwa gawo la shaft yofananira ku magazini yothandizira nthawi zambiri kumakhala 0.01 ~ 0.03mm, ndipo ma shaft olondola kwambiri (monga ma shaft akulu) nthawi zambiri amakhala 0.001 ~ 0.005mm.

(4) Kuvuta kwa pamwamba Nthawi zambiri, kukhwinyata kwa m'mimba mwake kwa shaft komwe kumayenderana ndi gawo lopatsira ndi Ra2.5 ~ 0.63μm, ndipo kukhaula kwa m'mimba mwake wa shaft wogwirizira ndi Ra0.63 ~ 0.16μm.

Zopanda kanthu ndi zida za magawo opindika a shaft
(1) Zigawo za Shaft sizimasoweka Zigawo za Shaft zitha kusankhidwa ngati zopanda kanthu, zofooketsa ndi mafomu ena opanda kanthu malinga ndi zofunikira zogwiritsira ntchito, mitundu yopanga, mikhalidwe ya zida ndi kapangidwe kake.Kwa ma shaft omwe ali ndi kusiyana pang'ono m'mimba mwake, zida za bar zimagwiritsidwa ntchito;pamiyendo yoponderezedwa kapena ma shaft ofunikira okhala ndi mainchesi akulu akunja, ma forgings amagwiritsidwa ntchito nthawi zambiri, omwe amapulumutsa zida ndikuchepetsa ntchito yopangira makina.Kupititsa patsogolo makina.

Malinga ndi masikelo osiyanasiyana opanga, pali mitundu iwiri ya njira zopangira zopanda kanthu: zopangira zaulere komanso zofota.Kupanga kwaulere kumagwiritsidwa ntchito kwambiri popanga magulu ang'onoang'ono ndi apakatikati, ndipo kufa kwakufa kumagwiritsidwa ntchito popanga zambiri.

(2) Zida za mbali za shaft Zigawo za Shaft ziyenera kusankha zida zosiyanasiyana ndikutengera mitundu yosiyanasiyana ya chithandizo cha kutentha (monga kuzimitsa ndi kutentha, kukhazikika, kuzimitsa, etc.) malinga ndi ntchito zosiyanasiyana ndi zofunikira zogwiritsira ntchito kuti mupeze mphamvu, kulimba ndi kukana kwa Abrasion. .

45 chitsulo ndi chinthu wamba pa shaft mbali.Ndiwotchipa ndipo itatha kuzimitsa ndi kutentha (kapena normalizing), imatha kupeza ntchito yabwino yodulira, ndipo imatha kupeza zida zamakina monga mphamvu zapamwamba komanso kulimba.Pambuyo kuzimitsa, kuuma pamwamba kumatha kufika ku 45 ~ 52HRC.

Chitsulo chopangidwa ndi alloy monga 40Cr ndi choyenera pazigawo za shaft zolondola kwambiri komanso kuthamanga kwambiri.Pambuyo kuzimitsa ndi kutentha ndi kuzimitsa, mtundu uwu wa chitsulo ali bwino mabuku mawotchi katundu.

Kunyamula zitsulo GCr15 ndi zitsulo masika 65Mn, pambuyo kuzimitsa ndi kutentha ndi pamwamba pamwamba pafupipafupi kuzimitsa, kuuma pamwamba akhoza kufika 50-58HRC, ndipo ali mkulu kukana kutopa ndi bwino kuvala kukana, amene angagwiritsidwe ntchito kupanga mitsinje mkulu-mwatsatanetsatane.

Shaft yayikulu ya chida cholondola cha makina (monga shaft yopera ya chopukusira, spindle ya makina otopetsa a jig) imatha kusankha chitsulo cha 38CrMoAIA nitride.Pambuyo kuzimitsa ndi kutentha ndi pamwamba nitriding, chitsulo ichi sangakhoze kupeza mkulu pamwamba kuuma, komanso kukhalabe pachimake zofewa, choncho ali ndi zotsatira zabwino kukana ndi kulimba.Poyerekeza ndi chitsulo chopangidwa ndi carburized ndi cholimba, chimakhala ndi mawonekedwe ang'onoang'ono a kutentha kwa kutentha ndi kuuma kwakukulu.

No. 45 zitsulo zimagwiritsidwa ntchito kwambiri popanga makina, ndipo makina achitsulo ichi ndi abwino kwambiri.Koma ichi ndi chitsulo chapakati cha kaboni, ndipo ntchito yake yozimitsa si yabwino.No. 45 zitsulo akhoza kuzimitsidwa kwa HRC42 ~ 46.Choncho, ngati kuuma pamwamba kumafunika ndipo apamwamba makina katundu 45 # zitsulo amafuna, pamwamba pa 45 # zitsulo nthawi zambiri kuzimitsidwa (mkulu pafupipafupi quenching kapena quenching mwachindunji), kotero kuti chofunika pamwamba kuuma angapezeke.

Zindikirani: No. 45 zitsulo ndi m'mimba mwake 8-12mm sachedwa ming'alu pa quenching, amene ndi vuto lovuta kwambiri.Zomwe zikuchitika pano ndikugwedezeka kwachitsanzo m'madzi pakuzimitsa, kapena kuziziritsa kwamafuta kuti zisawonongeke.

National Chinese Brand No. 45 No. UNS Standard No. GB ​​699-88

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

Shape ingot, billet, bar, chubu, mbale, strip state popanda kutentha, annealing, normalizing, kutentha kwambiri

Mphamvu zolimba Mpa 600 Zokolola mphamvu Mpa 355 Elongation% 16

Kupinda m'munda wa kukonza nkhungu
The nkhungu kuwotcherera consumable chitsanzo cha No. 45 zitsulo ndi: CMC-E45

Ndi ndodo yokhayo yowotcherera yachitsulo cholimba chapakati chokhala ndi zinthu zabwino zomangirira, zoyenera zitsulo zoziziritsidwa ndi mpweya, zitsulo zotayidwa: monga ICD5, 7CrSiMnMoV ... etc. Auto pepala zitsulo chivundikiro zisamere kuumba ndi lalikulu zitsulo pepala zitsulo stamping zisamere kuumba pojambula ndi kukonza. mbali zotambasuka, ndipo zitha kugwiritsidwanso ntchito popanga zolimba pamwamba.

Kuphatikiza apo, pali zinthu zina zomwe muyenera kuziganizira mukamagwiritsa ntchito:

1. Musanayambe kumanga pamalo onyowa, electrode iyenera kuuma pa 150-200 ° C kwa mphindi 30-50.

2. Nthawi zambiri kutenthedwa pamwamba pa 200 ° C, kuziziritsa kwa mpweya pambuyo pa kuwotcherera, kuchepetsa nkhawa ndi bwino ngati n'kotheka.

3. Pamene kuwotcherera kwa multilayer kumafunika, gwiritsani ntchito CMC-E30N ngati choyambira kuti muzitha kuwotcherera bwino.

Kuuma kwa HRC 48-52

Zosakaniza zazikulu Cr Si Mn C

Chigawo chapano chomwe chikugwiritsidwa ntchito:

Diameter ndi kutalika m/m 3.2 * 350mm 4.0 * 350mm
Chitsulo cha 45 gauge cha fakitale yathu chimagwiritsidwa ntchito kupanga maziko a nkhungunkhungu.