| 摘要 |
The invention concerns a load torque lock for automatically locking load-side torques in the case of a decrease or cessation of a drive-side torque having a housing ( 11 ) fixed to a frame, a locking ring ( 17 ) permanently connected to it and a locking body ( 17 ) cooperating with it and revolving on the drive side, with locking devices which, on the one hand, clamp on the locking ring ( 17 ) with the occurrence of a load torque by swiveling the locking body ( 17 ) by means of locking elements ( 27, 28 ) of the output shaft ( 15 ) and, on the other hand, release from the locking ring ( 17 ) by swiveling the locking body ( 17 ) back by means of driving elements ( 23, 24 ) of the drive shaft ( 14 ). To avoid undesired friction or defective jamming of the locking devices on the locking ring ( 18 ) by the centrifugal forces of the locking body ( 17 ) it is embodied in such a way that its mass center of gravity (M) lies in the area of the rotational axis of the drive shaft and the output shaft that are aligned with one another.
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