Zana ya Uhandisi Isiyolipisha
Kikokotoo cha Kiasi cha Kujaza Mafuta ya Gearbox
Kadiria kiasi cha mafuta kwa gearbox za kiviwanda. Inasaidia aina za spur, helical, bevel, minyoo, na planetary. Kiwango cha mafuta kwa halijoto, upanuzi wa joto, kipindi cha kumwaga, na uzito wa mafuta.
Kiasi cha Mafuta & Maelezo
Fomula ya Kimajaribio ya Kiasi cha Mafuta
Where k ni kipengele kinachotegemea aina, a ni umbali wa katikati (m), b ni upana wa uso (m). Hatua nyingi: kila hatua ya ziada inaongeza ~70% ya kiasi cha hatua ya kwanza.
| Gearbox Type | Factor k | Fill Ratio | VG Grade |
|---|---|---|---|
| Spur / Helical | 0.50 | 1/3 housing | VG 220 |
| Bevel | 0.60 | Per marks | VG 220–320 |
| Worm | 0.80 | To worm center | VG 320–460 (PAG) |
| Planetary | 0.35 | 1/3–1/2 ya chomba | VG 150–220 |
| Hypoid | 0.65 | Per marks | VG 220–320 (EP) |
Upanuzi wa Joto wa Mafuta
Mineral oil expansion coefficient β ≈ 0.0007/°C. Synthetic PAO similar. This means ~7% expansion per 100°C rise.
Mfano wa Vitendo
V₁ = 0.50 × 0.200² × 0.060 × 1000 = 1.20 L
V_total = 1.20 + 1.20 × 0.70 = 2.04 L
Oil weight = 2.04 × 0.87 = 1.77 kg
At 70°C (vs 15°C fill): V_hot = 2.04 × (1 + 0.0007 × 55) = 2.12 L (+79 mL)
Mwongozo wa Vipindi vya Mabadiliko ya Mafuta
| Oil Type | Normal (≤70°C) | Warm (70-90°C) | Hot (>90°C) |
|---|---|---|---|
| Madini (VG 220) | 8,000–10,000 h | 4,000–6,000 h | 2,000–3,000 h |
| Semi-synthetic | 12,000–15,000 h | 6,000–10,000 h | 3,000–5,000 h |
| Sintetiki kamili (PAO) | 15,000–20,000 h | 10,000–15,000 h | 5,000–8,000 h |
| PAG (gia za minyororo ya konokono) | 20,000–30,000 h | 12,000–18,000 h | 6,000–10,000 h |
⚠️ Note: Hizi ni thamani za kimajaribio za takriban. Fuata daima maelezo ya mtengenezaji wa gearbox kwa kiasi halisi cha kujaza na daraja la mafuta.
Vyombo vya Kitaalamu. Vinatumika katika nchi 50+.
