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VIII. Zanjirli uzatma hissobi.
Katta yulduzcha tishlari sonni aniqlash
Z₂=Z₁*i_zanj=32*3=96
Yuklamaning hissobiy koeffitsiyent
Ke= Кdin*Ka*Km*KӨ*KR*Kreg
Кdin - dinamik zo'riqish koeffitsiyenti
Ka - o ‘qlararo masofa koeffitsiyenti
Km - moylash turini hisobga oluvchi koeffitsiyent
KӨ- zanjirning o g ‘ ish burchagini hisobga oluvchi koeffitsiyent
KR - zanjirning ishlash rejimini hisobga oluvchi koeffitsiyent
Kreg- zanjirning taranglash turini hisobga oluvchi koeffitsiyent
Ke=1*1.2*1.25*0.8*1=1.2
Bir qatorli zanjirning qadami
t₁=2.8*
p=17
t1=2.8* =13.72
Zanjirning tezligini aniqlash
V=
t= 12.7

V=

Aylantirish kuchi
F_t=
F_t=
Sharnerdagi bosim
P=
P= =0.22

(p)=32[1 + 0.001(𝑧1 - 17)]

(p)=32[1 + 0.001(32- 17)]=32.48
Zanjir zvenolari sonni aniqlash

Lt=2*at+0.5*Z

Bu yerda:

Z=z₁+z₂=32+110=142 a_t=50
L_t=2*50+0.5*142
Zanjirli uzatmaning markazlar aro masofasi
az=0.25*t[𝐿𝑡- 0.5 ∗𝑍 + ]
a_z=0.25*12.7 =1571.6=1.5
Markazdan qochma kuch
F_v=q*v²
F_v=0.75*2.14²=3.4347
Zanjir salqiligidan hosil bo’ladigan kuch

Ff = 9.81*kf*q*az

F_f=9.81*1.15*0.75*1.5=8.46

Valdagi xisobiy yuklama

Fx= Ft +2*Ff

F_x=7.26+2*8.46=122.855
IX. Reduktor vallarining dastlabki hisobi

Buralishga ruxsat etilgan kuchlanish qiymati [𝜏]=20 MPa bo'lganda yetaklovchi

valning chiqish oxiridagi diametri quyidagi formula bo'yicha aniqlanadi

yetaklovchi val:

d_v1=
d_v1= =23.8=24
Aniqlangan qiymat bo’yicha standart qatordan etaklovchi valning diametr
d_v1 11
Val podshipnik o’rni pog’onasining diametri.
dp1dv1(510) mm
d_p1=24+6=30mm
Valning shesternya o’rnatiladigan pog’onasining diametri.
dk dp1(510) mm
d_k=30+5=35mm
Yetaklanuvchi val.
Yetaklanuvchi valning chiqish oxiridagi diametric
d_v2=
(𝜏)=25 MPa
d_v2= =33.1
bo’rtik diametri
ddk (510) mm
d35+5=40