R. X. Maksudov
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Mashina detallari (R.Tojiboyev va b.)
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- = d 2 + 2m - 50 + 2 • 5 = 60лш d n = d , - 2 ,4/w = 200 - 2.4 ■ 5 = 188 мм
- _ 73» 18-0,32 107 www.ziyouz.com kutubxonasi V bob.
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= 125 mm qabul qilamiz. 5. U zatm aning ilashish moduli: /и = (1.5 + 1 . 7 ) ^ - = (1.5 + 1.7)— = 4.68 + 5.3лш Z , 40 Aniqlangan qiymatni yaxlitlab m =5.0 m m qabul qilamiz. 6. C hervyak diametri koeffitsiyenti: 2 a 2-125 q = - Z j = —— — - 4 0 = 10 in : 7. Siljish koeffitsiyenti: x = ^ J - 0.5fa + Z , ) = - 0.5(10 + 40) = 0 8. C hervyak va chervyakli g'ild irak larn in g geom etrik o ‘lchamlri a) C hervyak 106 www.ziyouz.com kutubxonasi d , = m q = 5 10 = 50 мм d al = t/, + 2m = 50 + 2 •5 = 60лш = d x - 2.4w = 50 - 1 2 = 38лш C hervyak o ‘ramining uzunligi 6, = (11 + 0.06Z , )m = (11 + 0.06 ■ 40) • 5 = 67лш b) Chervyakli g ‘ildirak: d 2 = rn Z 2 = 5 •4 0 = 200лш d a2 = d 2 + 2m - 50 + 2 • 5 = 60лш d n = d , - 2 ,4/w = 200 - 2.4 ■ 5 = 188мм Eng katta tashqi diametr: d „ = d , + ■ 6 w = 20 0 + = 2 0 1 . 5 m m “ Z , + 2 2 + 2 Chervyakli g ‘ildirak eni: 6, = 0.355a„ = 0.355 ■ 125 = 44лш 9. Uzatm aning foydali ish koeffitsiyenti: n =' - = 0,93 + 02685 Z i=2, q = 1 0 b o i g a n d a ^° = ii ‘’i9l 10. Kontakt kuchlanishning hisobiy qiymati: = 18o E S . « * M j E n i . i e M b \l с/, 200 V 50 07 ,- < 1 - shart bajarildi. 11. Egilishdagi kuchlanishning hisobiy qiymati = 0,7 Yri ^ [ & ] b2 • m bu verda: Fr = Ш - = 2 -2 5 0 -1 0 3/2 0 0 = 2 5 0 0 tf, ^2 Ы ==42,6mm; z , = - ^ - = Y F=2.22 ’ A cos у cos 14 02' Natijada: gf 2= 0 , 7 « 2 , 2 2 ^ ^ = 1 7 , 5 M P a < [ a F] 12. Uzatmani qizishga tekshiramiz. ,. = 0 z ? t i . + 2O" bu yerda: R,=4,38-103Vt; Ks=12...18 Vt/(m20s) A=0,32 m sovutiladigan yuza nr = О ~ 0 > ^ )-4 ,3 8 -1 0 3 + _ 73» < [o J 18-0,32 107 www.ziyouz.com kutubxonasi V bob. Z A N JIR L I U Z A T M A L A R 5.1-§. U m u m iy m a ’lu m otlar Zanjirli uzatm a bu yetaklovchi va yetaklanuvchi vulduzcha ham da shu yulduzchaga kiydirilgan zanjirdan iborat 5.1 - rasm. Zanjir faqat bir tekislik b o 'y ic h a egiladi, shuning uchun o 'q la r o 'z a ro parallel b o i i s h i shart. 5.1-rasm . Z a n j i r l i u z a t m a l a r a s o s a n q i s h l o q x o ‘j a l i k m a s h i n a l a r i d a . m a s h i n a y u r i t m a l a r i d a h a r xil s t a n o k l a r d a k o ^ p i s h l a t i l a d i . Z a n j i r l a r ish b a j a r i s h i g a q a r a b b i r n e c h a g u r u h g a b o ‘ li n a d i: a) Y u k l a r n i b a l a n d l i k k a k o 4 a r a d i g a n m e x a n i z m l a r d a i s h l a t i l a d i g a n z a n j i r l a r . b ) t o ‘x t o v s i z i s h l a y d i g a n t r a n s p o r t q u r i l m a l a r d a i s h l a t i l a d i g a n z a n j i r l a r . d ) b i r v a l d a n i k k i n c h i v a l g a q u v v a t n i u z a t i s h u c h u n i s h l a t i l a d i g a n z a n j i r l a r . B i z a s o s a n s h u ( v ) g u r u h d a g i z a n j i r l a r n i h i s o b l a s h t a r t i b i n i o i ' g a n a m i z . B u g u r u h d a g i z a n j i r l a r a s o s a n v t u l k a - r o l i k l i Download 128 Kb. Do'stlaringiz bilan baham: |
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