vR: 1 -2 8 00 G /?„, = x \ R 2K 1 -A \ = 1.0-1.0 -2 80 0 1.3-1.0 = 3 6 4 0 / / 4. Yuklanish 2 chi tayanchda nisbatan katta boiganligi uchun shu
tayanch podshipnik uchun dinamik yuk koiaruvchanlik qiymatini
aniqlaymiz
c . ^ ^ S . 3 6 4 0
j 573 ^ y 000- = 14033// >-c shart bajariladi.
5. Ishlash muddati soat hisobida.
llY’ Г C V
10" f
1 4 0 0 0 V
, Lu. , = --------- ------- = --------------- ----------- - ~ 1 0 1 0 0 c ^ L l A 573co2 { R .i : ) 5 7 3 - 1 0 v 3 64 0 J Masalan Qiya tishli silindrsimon uzatma val tavanchlari uchun
podshipnik tanlansin. Valning burchak tezligi v r= 5/.‘/ c '/.Podshipnikning
ishlash
muddati
Lh=10000c. Podshipnik
o ‘tkaziladigan
val
tayanchlarining diametri
d=40mm. Tayanchlarga ta’sir qiluvchi kuchlar
R,=3000H, R2-4000H, Fa=1330H (10.17-rasm). M a sa la n in g echimi.
1. Val tavanchlari uchun a<12° b o i g a n d a 36208 yengil seriyali
zoldirli radial - tirak podshipniklar tanlaymiz, bunda S=30.6 kN,
S0=23/7kN,
Fa
X
10.17-rasm . 2. — - nisbat bo‘yicha x,u,e koeffitsiyent qiymatlarini jadvaldan
tanlaymiz.
= 1330 = 0 .0 5 6 b o ig a n d a x^O.56. u= 1.71, e=0.26.
C 0 2 3 7 0 0 3. Radial kuchlardan hosil b o ig a n qo‘shimcha bo'ylama kuchlarning
qiymatini aniqlaymiz.
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