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R. X. Maksudov
Pdf ko'rish
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| bet | 108/157 | | Sana | 18.01.2024 | | Hajmi | 6,25 Mb. | | #140078 |
Bog'liq Mashina detallari (R.Tojiboyev va b.)0 .2 5 (1 2 0 -6 3 ) 2
1 = 2 - 112 4 - 0 . 5 - 3 . 1 4 ( 1 2 0 + 63) + ------ —----------- -— = 5 1 8
mm
112
8. Yetaklovchi shkivni qam rov burchagi
ал
a) N o rm a l ponasim on tasm alar u zatm alar uchun
d
,
d
,
170
90
ax =
1 8 0 c— 5 7 s——
180c — 57*— - — - = 163° >
[аЛ
1
a
270
b) Y arim p o n asim o n tasm alar uzatm alar uchun
а л =
18 0 й — 5 7 о1 ^ ~ 90 = 162е > [дгJ shart bajariladi
v) Ensiz ponasim on tasm alar uzatm alar uchun
a
j = 1 8 0 ° - 57'°-— ■
— = 150° > [a.] shart bajariladi
2 2 2 2 6 S
9. 0 ‘qlararo m asofaning hisobiy qiymati
a) N orm al ponasim on tasm alar uzatm alar uchun
a —
~ [2 £ —
n (d 2
+ r f i ) +
\f[2L — n(d7
+ rf5)] 7 — G(d2—d j ) : ]~
+
^ [ 2 a = 9 5 4 - 3 .1 4 ( 1 7 0 + 90)
+V12- 954 -3 .1 4 (1 7 0 + 9 0 )] 2 - 8 ( 1 7 0 - 9 0 ) 2J
b) Y arim p o n asim o n tasm alar uzatm alar uchun
a =
—Г2 • 944 -
3.
14(170 + 90) +
J[2 ■
944 -
3 .
14(170 + 9 0)]3 - 8(170 - 9 0 )2 = 2 6 4
8 L
v) E nsiz ponasim on tasm alar u zatm alar uchun
a = ^ [2 • 518 - 3.14(120 + 63) +
+V'[2- 5 1 8 —3.14(120 + 63 )] 2 - 8 ( 1 2 0 - 63)
2j
= 110
11. Bitta tasm a y ordam ida uzatish m um kin b o ‘lgan quvvat.
a) N o rm al ponasim on tasm alar uzatm alar uchun
[P } = i P 0] ' C a ‘ CL ’ Cu/Cp
kVt
bunda
Ca
= 0.95; CL
= L J L 0 =
954/17C0 = 0.56 b o i g a n d a CL
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