| 摘要 |
FIELD: transport. ^ SUBSTANCE: valving drive comprises reversible motor and extending spindle. The latter is coupled with valve gate. Reduction gear is arranged between motor and extending spindle. Reduction gear consists of housing, drive cam shaft, bevel pinion, cone coupling, sliding nut and hollow output shaft. The latter is arranged aligned with extending spindle. Helical pinion is a two-rim pinion. Said helical pinion is jointed with housing and engaged with two-rim pinion rim. Cone coupling is jointed with hollow output shaft and engaged with two-rim pinion rim. Sliding nut is fitted at hollow shaft lower part. ^ EFFECT: motor reduced rpm for lifting valve gate at drive lower weight and smaller sizes. ^ 1 dwg |
