FIELD: pipes and valves. SUBSTANCE: planetary reduction gear of shutoff valve electric drive has shaft- carrier with planet pinions and two central wheels. One of wheels has external worm and internal spur teeth. Second wheel is designed for meshing with drive shaft of shutoff member. Differential of drive has carrier with planet pinions and two central wheels secured on input and output shafts of differential, respectively. Differential output shaft is mechanically coupled through self-braking worm with first central wheel of planetary reduction gear. Differential carrier is mechanically coupled with shaft-carrier of planetary reduction gear. EFFECT: enlarged operating capabilities. 2 dwg
| Title | Year | Author | Number |
|---|---|---|---|
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|
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