DC Drive Drawworks o Rigs Drilling Kaha Uta Nui
Ka mau katoa nga uwha ki nga roera me nga rakau he mea hanga ki te maitai koranu utu nui.
Ko nga mekameka taraiwa me te tino tika me te kaha nui ka whakahinuhinuhia.
Ko te parai matua ka tango i te rei kōpae waipēhi, ā, ko te kōpae parai he wai, he hau makariri ranei.
Ko te parai awhina ka tango i te parai hiko eddy o naianei (te wai, te hau ranei i whakamatao) me te parai kōpae pana pneumatic.
Tawhā Taketake o nga Mahi Toi Puku DC:
| Tauira o te rig | JC40D | JC50D | JC70D | |
| Nominal hōhonu keri, m(ft) | me te Ф114mm (4 1/2”) DP | 2500-4000 (8200-13100) | 3500-5000 (11500-16400) | 4500-7000 (14800-23000) |
| me te Ф127mm(5”) DP | 2000-3200 (6600-10500) | 2800-4500 (9200-14800) | 4000-6000 (13100-19700) | |
| Te mana whakatau, kW(hp) | 735 (1000) | 1100 (1500 ) | 1470 (2000) | |
| Qty. o nga motuka × te mana kua tohua, kW(hp) | 2 ×438(596)/1 ×800(1088) | 2 ×600 (816) | 2 ×800 (1088) | |
| Te tere o te motini, r/min | 880/970 | 970 | 970 | |
| Dia. o te raina keri, mm(in) | 32 (1 1/2 ) | 35 (1 3/8) | 38 (1 1/2) | |
| Max. toia raina tere, kN(kips) | 275(61.79) | 340(76.40) | 485(108.36) | |
| Rahi pahū matua (D×L), mm(in) | 640×1139 (25 1/4×44 7/8) | 685×1138 (27 ×44 7/8) | 770×1361 (30 ×53 1/2) | |
| Rahi kōpae parai (D×W), mm(in) | 1500×40 (59 ×1 1/2) | 1600×76 (63 ×3 ) | 1600×76 (63 ×3) | |
| Parai awhina | Parai hiko eddy o naianei/Eaton frein | |||
| DSF40/236WCB2 | DS50/336WCB2 | DS70/436WCB2 | ||
| Te rahinga (L×W×H), mm(in) | 6600×3716×2990 (260×146×118) | 6800×4537×2998 (268×179×118) | 7670×4585×3197 (302×181×126) | |
| Taumaha, kg(lbs) | 40000(88185) | 48000(105820) | 61000(134480) | |
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