| 摘要 |
In a belt transmission in which several units are driven by a common belt, a breakdown in one of the units can cause serious damage if the belt drive stops functioning. In order to avoid this, an overload protection is arranged which ensures driving of the other units and which disengages a unit which has broken down. In the unit in question, driving power is normally transmitted from the pulley (8), or other transmission wheel, via a friction clutch to the drive shaft (16) of the unit. The friction clutch comprises a clutch plate (22) with a number of attached pins (23) which engage, in a torque-transmitting manner, in a carrier (18) connected to the drive shaft (16) of the unit. The pins (23) are in this respect attached by means of solder joints (27) with a solder of such a chosen fusing point that the pins (23) are loosened by the heating which is obtained if the clutch plate (22) slides. |
