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Reduktorni slindrimon uzatmasining loyixa xisobi
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| bet | 3/5 | | Sana | 21.05.2024 | | Hajmi | 0,65 Mb. | | #248253 |
Bog'liq Qobiljonova2.3. Reduktorni slindrimon uzatmasining loyixa xisobi
Reduktorni slindrimonuzatmaildiraklarinitayorlashuchunmaterialtanlanib, ulargatermikishlovberishturibelgilanadi.
Shesternyauchunpo‘lat 40X, termikishlovberishturiyaxshilangan, atilikB 230; ildirakuchun 40X, termikishlovberishturiyaxshilangan, atilikB 200.
Tishliuzatmalardashesternyavaildiraklarningmustakamliginikantaktkuch-lanishbo‘yicha, birxililibtayorlashmurakkabbo‘lganligiuchun, mustakamliknichegaralovchitishliildiraktanlabolinadi.IshlashmuddatinixisobgaoluvchikoyeffitsentKL=1.0 bo‘lsa, ruxsatetilgankantaktkuchlanishildiraktuchunanilanib, mustakamlikshungaasosantekshiriladi.
[Ϭ]= 0.45([ ] + [ ]).
Buyerda; = = = 482 MPa.
= = = 428MPa.
[Ϭ]= 0.45( 482 + 428 )= 410 MPa.
O‘lararomasofanianlaymiz.
aω = Ka(Us+1) = 43(3.55 + 1) =43*4.55 179.02 mm.
DAST 2185-66 danaω= 180 mmdebolamiz. ([1] 36-bet).
mn= (0.01 ) aω= (0.01 )180 = 1.8 3.2
DAST 9563-60*danmn =3 debabulilamiz. ([1] 36-bet).
Shestrnyaningtishlar soni.
z1 = = = = 25.9.
z1= 26 debabulilamiz.
z2= z1*Us = 26*3.55 = 92.3. z2= 92 debolamiz.
Cosβ = = = 0.32*3 =0.978. β = 12044’.
Shestrnya va g`ildrakning asosiy o‘lchamlari.
Shestrnyaning vag`ildraknin gbo‘luvchi diametri.
= *z1= = 79.56.
*z2 = = 281.52.
Bunday xolda markazlararo masofa tekshiriladi.
aω= = = 180.54 mm.
Shestrnyaning va g`ildrakning tish usti diametri.
= d1 + 2mn = 79.56 + 2*3 = 85.56 mm.
= d2 + 2mn = 281.52 + 2*3 = 287.52 mm.
Shestrnyaning va g`ildrakning tish osti diametri.
= d1 - 2.4mn = 79.56 - 2.4*3 = 72.36 mm.
= d2 - 2.4mn = 281.52 - 2.4*3 = 274.32 mm.
Shestrnyava g`ildrakning qalinligi.
b2= bd*aω = 0.4*180 = 72 mm.
b1 = b2 + 5 = 77 mm.
bd = = = 0.95.
Shestrnyaning shu nuqtadagi tezligi.
V = = = 3.04m/c.
Kuchlanish koyeffitsenti.
K = Kβ * Kα * KV;
Buyerda; Kβ = 1.09; Kα = 1.09; KV=1.0;
K = 1.09*1.09*1.0 = 1.19.([1] 99-bet, 3.4, 3.5 - jadvallar).
Xisobiy kuchlanish.
Ϭ = * = * =
= 381.25Mpa⩽ [Ϭ] =410MPa.
Slindrsimon g`ildraklarning ilashishida hosil bo‘lgan kuchlar.
Ft = = = 1800 .
Fr = Ft = 1800*0.37 = 672 .
Fa = Ft* = 1800*0.221 =3.98.4 .
Tishlarni eguvchi kuchlanishga chidamliligi.
Yuklanish koyeffitsenti;
ϬF = ⩽ [ϬF].
KF = KFβ * KFV = 1.29*1.3 = 1.677 -yegilishdagiyuklanishkoyeffitsenti; ([1] 43 – bet, 3.7, 3.8 - jadvallar).
= 0.92 – amrashkoyeffitsenti;
γF– tishshaklinixisobgaoluvchikoyeffitsenti;
= = = 28.
= = = 99.
= 3.6; ([1] 42-bet).
Ruxsat etilgan eguvchi kuchlanish.
[ϬF] = ;
Buyerda; = 1.8*B = 1.8*200 =360 MPa.
= * = 1.75*1.0 = 1.75 – xavfsizlikkoyeffitsenti;
= = 206MPa;
ϬF = = 183 MPa⩽ [ϬF] = 206MPa.
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