Muhandislik uchun bepul vosita
Bolt oldindan yuk kuchi kalkulyatori
Calculate the assembly preload force in a metric bolt from utilization factor, yield strength, and tensile stress area. F = η × Rp × As.
ISO 898-1
VDI 2230
M3 – M64
Results
Yig'ish oldindan yuklash kuchi (F)
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Taxminiy qisish momenti
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Oqish yuki (100%)
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Tortish kuchlanishi maydoni
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Utilization
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Preload Force
Yig'ish oldindan yuklash kuchi — qisish jarayonida vintning maqsadli taranglik kuchi:
- η — foydalanish koeffitsienti (odatda 0,7–0,9)
- Rp — sinovdan o'tkazish / oqish mustahkamligi (MPa)
- As — cho'zilish zo'riqish maydoni (mm²)
Momentni hisoblash
Taxminiy qisish momenti (qisqartirilgan formula):
- K — gayka koeffitsienti (ishqalanishga bog'liq, odatda 0,15–0,20)
- d — vintning nominal diametri (mm)
Amaliy Misol
Misol — M10 × 8.8 @ 70%
Given: M10, class 8.8 (Rp = 640 MPa), As = 58.0 mm², η = 70%
F = 0.70 × 640 × 58.0 = 25 984 N ≈ 26,0 kN
T = 0.20 × 10 × 25,984 / 1000 = 52.0 N·m
⚠️ Note: Momentga asoslangan qisishda ±25% noaniqlik mavjud. Muhim birikmalarda aniqroq natija uchun cho'zish o'lchovi yoki gidravlik taranglash usulidan foydalaning.
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Professional dala balansirovka asboblari va dasturiy ta'minot. 50dan ortiq mamlakatda qo'llaniladi.
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