Muhandislik uchun bepul vosita
Yog' almashtirish intervali kalkulyatori
Ish harorati, ifloslanish, yuklanish darajasi, moy turi va filtr sifati omillaridan foydalanib, asosiy soatlardan tuzatilgan moy almashtirish oraliqlarini hisoblang. Xarajatlarni taqqoslash va moy tahlili bo'yicha tavsiyalar kiritilgan.
Interval natijalari
Moslashtirilgan interval formulasi
Har bir omil asosiy intervalni yuqoriga yoki pastga moslashtiradi. 1 dan katta qiymatlar intervalni uzaytiradi; 1 dan kichik qiymatlar uni qisqartiradi.
Harorat omili (Arrhenius qoidasi)
Oil oxidation rate approximately doubles for every 10°C increase above 60°C. This is the single most important factor.
| Temperature | Factor | Effect |
|---|---|---|
| < 50°C | ×1.3 | Juda sekin oksidlanish |
| 50–70°C | ×1.0 | Odatiy asosiy holat |
| 70–85°C | ×0.7 | Tezlashtirilgan eskirish |
| 85–100°C | ×0.5 | Half life |
| > 100°C | ×0.3 | Tezkor degradatsiya |
Ifloslanish omili
Zarralar bilan ifloslanish barcha gidravlik tizim nosozliklarining 70–80% ini keltirib chiqaradi. Suvning past konsentratsiyasi ham (>200 ppm) eskirishni keskin tezlashtiradi.
Moy turi omili
Synthetic oils have better oxidation stability, lower pour points, and higher VI. PAO synthetics typically last 2× longer; ester-based 2.5× longer than mineral oils under same conditions.
Amaliy Misol
Given: Base 4000 h, hot (×0.5), dusty (×0.75), heavy load (×0.7), mineral oil (×1.0), standard filter (×1.0)
Factor = 0.5 × 0.75 × 0.7 × 1.0 × 1.0 = 0.2625
Adjusted = 4000 × 0.2625 = 1050 hours
→ With synthetic oil (×2.0): 2100 hours — still economical.
⚠️ Important: Bu omillar ko'rsatma sifatida keltirilgan. Moy tahlili yordamida doimo tekshirib turing. Hisoblangan intervалdan qat'i nazar, muhim uskunalar uchun moy tahlili dasturi bo'lishi shart.
Odatiy asosiy intervallar
| Equipment | Base (hours) | Notes |
|---|---|---|
| Sanoat reduktori | 4000–8000 | Sepish yoki majburiy moylaш |
| Gidravlik tizim | 2000–4000 | Yuqori ifloslanish xavfi |
| Diesel engine | 250–500 | Qurum/kislota to'planishi |
| Compressor | 2000–4000 | Yuqori harorat ta'siri |
| Elektr motor podshipniklari | 8000–16000 | Yog' bilan qayta moylash |
