FIELD: lifting oil from wells. SUBSTANCE: pumping unit includes tube string, screw pump, sucker rod string, double-stage reduction gear with hermetic casing, collar seal and supporting bearing. Pump spindle secured on sucker rod string is connected with driven gear wheel of reduction gear. Drive shaft of reduction gear holds movable gear cluster; intermediate shaft holds driven gear wheels of high-speed and low-speed stages mounted for engagement with one toothed rim of movable gear cluster. EFFECT: enhanced reliability and durability of unit. 5 cl, 1 dwg
| Title | Year | Author | Number |
|---|---|---|---|
| HOLE SCREW PUMP ASSEMBLY | 2006 |
|
RU2334125C1 |
| DOWNHOLE PUMPING UNIT FOR BITUMINOUS OIL EXTRACTION | 2019 |
|
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RU2646289C1 |
| MULTISTAGE REDUCER OF POWERED DRIVE OF DRILLING UNIT | 2016 |
|
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| DEEP WELL PUMPING UNIT | 1996 |
|
RU2114323C1 |
| ROLLING-CUTTER DRILLING BIT | 2002 |
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| TURBODRILL WITH REDUCTION GEAR | 1999 |
|
RU2161236C1 |
| GROUP DRIVE OF SUCKER-ROD PUMPS | 1996 |
|
RU2118709C1 |
| WELL SUCKER-ROD PUMPING UNIT | 0 |
|
SU823637A1 |
| ROD-WELL PUMPING UNIT | 0 |
|
SU1767224A1 |
