FIELD: machine building.
SUBSTANCE: invention relates to actuators of pipeline shut-off valves. Two-speed hand drive of the shut-off valve contains: building (1), cover (2), flywheel (3), planetary mechanism including a stationary central wheel with external teeth (4), satellite with internal teeth (5), rigidly connected to hub (6) having a longitudinal cylindrical groove, roller (7) located in the groove of drive shaft (8), flexible rods (9) connecting the hub of the satellite (6) to driven shaft-carrier (10), mounted on slide bearing (11). Simplification of the design of the drive is achieved by implementing a planetary gear containing a small number of basic elements: two gears (4) and (5), flexible rods (9), drive shaft (8) with roller (7) and driven shaft-carrier (10). Automatic speed switching is provided by the deformation of flexible rods (9), resulting in the immobilization of fixed central gear (4) and satellite (5) under heavy load and out of engagement under low load.
EFFECT: simplification of the drive structure.
1 cl, 4 dwg
| Title | Year | Author | Number |
|---|---|---|---|
| TWO-SPEED MANUAL DRIVE OF SHUTOFF VALVES | 2019 |
|
RU2716781C1 |
| TWO-SPEED MANUAL DRIVE OF SHUT-OFF VALVES | 2019 |
|
RU2694385C1 |
| TWO-SPEED MANUAL DRIVE OF SHUTOFF VALVES | 2019 |
|
RU2725336C1 |
| TWO-SPEED MANUAL DRIVE OF SHUTOFF VALVES | 2018 |
|
RU2701982C1 |
| DRIVE UNIT OF ROTARY SHUTOFF ORGAN OF PIPELINE FITTING | 2001 |
|
RU2190144C1 |
| TWO-SPEED DRIVE MECHANISM | 2010 |
|
RU2433326C1 |
| DOUBLE-SPEED HAND DRIVE OF PIPELINE VALVES | 2009 |
|
RU2454590C2 |
| CONTROLLED ELECTRIC DRIVE (VERSIONS) | 2006 |
|
RU2307278C1 |
| TWO-SPEED MANUAL DRIVE OF SHUT-OFF VALVES | 2016 |
|
RU2641415C2 |
| INERTIAL TRANSFORMER OF TORQUE | 0 |
|
SU1820105A1 |
