Crusher drive systems

Single-rotor and twin-rotor hammer crushers are usually driven by slip-ring motors via a V-belt transmission system. As a rule, slip resistors are provided in order to ensure flexible behaviour of the drive motor. In the event of a drop in rotation speed due to impact loading of the rotor, the motor will still develop a high torque and the V-belt drive will be less severely strained. The drive pulley, which serves as a flywheel, is overhung-mounted on the rotor shaft - even on the largest crushers hitherto built - and is fixed by means of locking sleeves or similar devices. 

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