FIELD: mechanical engineering.
SUBSTANCE: mechanized tool comprises clutching unit and multi-speed planet transmission. The clutching unit comprises clutch member and pusher. The clutch member is connected with the transmission member which is mounted in the vicinity of the means for supplying input torque to the transmission and should be irrotational, allowing the transmission to increase the torque. The pusher is loaded for its engagement with the clutch member to prevent their mutual rotation. When the clutch member and transmission member are interconnected, transmission capable to increase the torque. When the value of the torque applied to the clutch member is sufficient to overcome friction between the pusher and clutch member, the clutch member and transmission member rotate thus preventing the transmission from increasing torque.
EFFECT: enhanced reliability.
25 cl, 38 dwg
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