FIELD: engines and pumps.
SUBSTANCE: downhole motor reduction gear with helical planetary transmission comprises drive shaft with RH and LH helix teeth, planet pinions and crown gears with LH and RH helix teeth, rims of drive shaft, planet pinions and crown gears form engagement lines coupled by one pinion frame. Planetary transmission has four or more engagement lines. Note here that drive shaft RH helix teeth rims are arranged in one line, while drive shaft LH helix teeth rims are arranged in another line.
EFFECT: higher efficiency and longer life.
2 cl, 1 dwg
| Title | Year | Author | Number |
|---|---|---|---|
| DOWNHOLE MOTOR GEARBOX | 2019 |
|
RU2723807C1 |
| DOWNHOLE MOTOR GEARBOX | 2018 |
|
RU2723803C2 |
| PLANETARY REDUCTION GEAR ,PARTICULARLY, FOR TURBO-TOOTHED UNITS | 0 |
|
SU954672A1 |
| AUTOMATIC GEARBOX FOR THE VEHICLE | 2016 |
|
RU2624137C1 |
| PLANETARY REDUCTION GEAR | 1997 |
|
RU2122668C1 |
| FOUR-STEP GEARBOX FOR BUS | 2016 |
|
RU2628349C1 |
| PLANETARY REDUCTION GEAR | 0 |
|
SU983350A1 |
| MULTIPLE-ROW PLANETARY GEAR | 2009 |
|
RU2424458C2 |
| PLANETARY GEARING | 0 |
|
SU1011936A1 |
| MULTIFLOW DOUBLE-STAGE REDUCTION GEAR OF BEARING TRANSMISSION UNIT OF WIND-DRIVEN POWER PLANT | 0 |
|
SU1796044A3 |
