I. Elektrodvigatel tanlash va yuritmaning kinematik xisobi

Silindrik tishli g’ildirakning konstruktiv o’lchamlarini aniqlash.

1. 
   b = (6….8) m_n =20 b=20;
   
2. 
   d_a = m_n (Z₂+2) = 3 (134+2)=408 d_a=408;
   
3. 
   h = 2.25 m_n=2.25 3=6.75 h=6.75;
   
4. 
   δ₀=(2.5…..4.0) m_n δ₀=8;
   
5. 
   D₀=d_a – 2(h+ δ₀)=408–2(6.75+8)=378.5 D₀=378.5;
   
6. 
   l _sm=1.1 b=1.1 20=22 l _sm=22;
   
7. 
   d_b=0.2 d_a = 0.2 408 = 81.6 d_b=81.6;
   
8. 
   d_sm = 1.6 d_b=1.6 81.6=130.56 d_sm = 130.56;
   
9. 
   D₁=0.5 (D₀+d_sm)=0.5 (378.5+130.56)=254.53 D₁=254.53;
   

10) c=(0.2….0.3) b c=5;
11) d_om= = d_om= 61.98.
Tishli g’ildiraklarning aylanish tezligi:
υ:= υ =30.52 = 1.401 da
Qiyshiq tishli g’ildiraklar aniqlik darajasini 9 deb qabul qilamiz jadval orqali.
Tishga ta’sir etuvchi kuchlar.
Silindrik uzatmalar uchun:
Aylanma kuchni topish:

Radial kuchni topish:

= = 0.613 N 0.613 N;
Normal kuchni topish:
= 1.832 1.832 N.

G’ildirak tishlarini kontakt kuchlanish bo’yicha tekshirish.
Qiya tishli g ‘ildiraklar uchun kontakt kuchlanishni topish:


Kontakt kuchlanish bo’yicha yuklanish koeffitsiyenti.
=
yuklamaning tishlararo taqsimlanishini hisobga oluvchi koeffitsiyent,
tishli g’ildirak gardishi bo’yicha yuklamaning notekis taqsimlanishini hisobga oluvchi koeffitsiyent,
dinamik koeffitsiyent,deb qabul qilamiz GOST 1643-81 bo’yicha
=1.15
b₂= Ψ_ba α_ω b₂= 0.4 250 = 100 b₂ = 100


6.26 MPa < 427 MPa