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Shponkani mustahkamlikka hisoblash
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| bet | 3/4 | | Sana | 19.05.2024 | | Hajmi | 1,05 Mb. | | #244229 |
Bog'liq 6П80Г (2) 2 list avtomatika, Bobur Kurs Ishi Dastgoxli Koplekslar6.7 Shponkani mustahkamlikka hisoblash
Ϭcm= < |Ϭcm|=170MPa
= ≤ | | = 50 MPa
Ko’ndalang kesim bo’yicha:
M-maksimal burovchi moment
dv-valning diametri
1-val
Ϭcm=
=
2-val
Ϭcm= MPa
=
6.8 Shlitsani mustahkamlikka hisoblash
Ϭcm= ≤|Ϭcm|=100 Mpa
Acm=
Rcp=0.25 (D+d)
O’rtacha radius - Rcp
1-val Ϭcm= = =20 MPa ≤|Ϭcm|=100 Mpa
Acm=
Rcp=0.25 (D+d)= 0.25
2-val Acm= =66
Rcp=0.25 (50+46)=24
Ϭcm=
3-val Acm= =70
Rcp=0.25 (82+78)=40
Ϭcm=
6.10 Tayanchdagi reaksiya kuchini aniqlash:
1- val uchun;
; a=140 mm; b=442 mm;
0- b+ (a+b)=0;
(a+b)=a ;
= =+ =459 N
- + =0
= - =1908-459=1449 N
=4333 N
= tga=4333 0.36=1560 N
0-140 1908+459 (582)=0
; a=140 mm; b=442 mm;
a+
=1449 N
=4333 N
= tga=4333 0.36=1559 N
=0
=1449+1908=3357 N
b+
3357 0-1908 +1449 (582)=0
=2043 N
= =3388 N
=V R =1345 1.25 1 1=1681 N
V=1
=1
=1.25
L= = =431
Podshipnik ishlash muddati
Ln= soat
Ln= = soat
2-Val uchun;
` a=140 b=355 c=88
= =2078 N
0.36=4920 0.36=1771 N
= =4920 N
=0
+ =2078+1771=3849 N
0-2970 +2960 (140+355)- 2970 (582)=0
a=140 b=355 c=88
= =2076 N
0.36=4920 0.36=1771 N
= =4920 N
+ =2076+1771=3676 N
3970 0-2970 +2970 (140+355)- 1000 (582)=0
=4473 N
= =4222 N
=V R =4222 1.25 1 1=5277 N
V=1
=1
=1.25
Podshipnikning uzoq muddatligiga hisoblash;
L= = =14
Podshipnik ishlash muddati
Ln= soat
Ln= = 1476 soat
3-Val
; a=130 mm; b=80 mm;
0- a+ (a+b)=0;
(a+b)=a ;
= =+ =6836 N
- + =0
= + =11043+6836=17909 N
= = =11846N
= tga=11846 0.36=4264 N
0-4264 + 6836 (130+80)=0
; a=130 mm; b=80 mm;
b+
=1624 N
= = =11846 N
= tga=11846 0.36=4263 N
=0
=1624+4263=5887 N
b+
0-4263 +1624 (130+80)=0
=17982 N
= =9021 N
=V R =8961 1.25 1 1=11201 N
V=1
=1
=1.25
L= = =8.76
Podshipnik ishlash muddati
Ln= soatLn= = soat
7. Xulosa
Men ushbu 6П80Г Gorizontal Frezalash stanogining tezliklar qutisini loyihashda avvalo, berilgan qiymatlari boyicha asosiy kinematik parametrlarni hisobladim, keyin unga struktura setkasi va aylanishlar chastota grafigini tuzdim. So’ng elektro dvigatelni hisoblab topdim. Undan keyin tezliklar uzatmasi qutisini konstruktiv o’lchamlarini aniqladim va mustahkamlikka hisobladim. Shundan so’ng topilgan qiymatlari yordamida AutoCAD dasturida uzatmalar qutisini chizmasini chizdim.
Bugungi kunda yurtimizda texnika sohasi juda shiddat bilan taraqqiy etmoqda. Barcha sohalar kabi texnika sohasi ham yurtda qanchalik yaxshi rivojlansa shu yurtda ishlab chiqarish yanada o’sadi va rivojlanadi.
Shuning uchun biz yoshlar ham o’z sohamizni yanada chuqurroq o’rganishimiz lozim. Buning uchun esa yaratilayotgan imkoniyatlardan to’laqonli foydalanib o’z ustimizda yanada ko’proq ishlashimiz va horijiy dastgohlar, ularninng tuzilishi, ishlab chiqarish harakteristikalari bilan ko’proq tanishib borishimiz lozim.
Ushbu bajargan kurs loyihamdan ham ancha koproq narsalarni o’rgandim va yanayam ko’proq o’rganishni hoxlardim.
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