| 摘要 |
The present invention relates to a retroaction-protected transmission module for a motor for driving a retroaction-endangered load, in particular of a gate, having a transmission ( 11 ) having a drive side and an output side and a blocking clutch ( 1 ) having a clutch state and a blocking state, the blocking clutch including a driveshaft ( 12 ), which has driver parts ( 2 ) on one end, between which clamping bodies ( 3 ) are movably located, which surround a head ( 4 ) of an output shaft ( 13 ), the head ( 4 ) of the output shaft ( 13 ) having coupling faces ( 5 ), which are in contact with the clamping bodies ( 3 ) in the clutch state and via which, in the clutch state, the clamping bodies ( 3 ) carried by the driver parts ( 2 ) in the event of a rotation of the driveshaft ( 12 ) transmit a torque from the driveshaft ( 12 ) to the output shaft ( 13 ), and a braking ring ( 6 ) having a clamping face ( 7 ) being located around the clamping body ( 3 ), against which the clamping bodies ( 3 ) are pressed by the coupling faces ( 5 ) in the blocking state when an external torque acts on the output shaft ( 12 ). According to the present invention, the blocking clutch ( 1 ) is located on the output side of the transmission ( 11 ) so that an external torque is absorbed by the blocking clutch ( 1 ) and the transmission ( 11 ) is thus protected from the effect of the external torque. The present invention also relates to a blocking clutch for a transmission module of this type.
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