Comminution machine

Abstract

A comminution machine for waste includes a rotor that carries blade elements and cooperates with counter-blades, which are fixed to the housing. The rotor is driven by a synchronous motor that is excited by a controllable frequency converter. In order to keep the connected power of the comminution machine small and nevertheless be able to apply a large torque to the rotor, the synchronous motor acts upon the rotor via a reduction gearing and a clutch.

Description

BRIEF DESCRIPTION OF THE DRAWINGS

The invention is explained more fully in the following with reference to an exemplary embodiment and the drawing. In the drawing, the sole FIGURE shows the schematic representation of a comminution machine.

Claims

1. A comminution machine having a rotor which carries blade elements, having a counter-blade arrangement which is fixed to the frame and cooperates with the blade elements of the rotor, and having a synchronous motor which acts upon the rotor and is excited by a feed unit whose frequency is controllable, wherein the synchronous motor acts upon the rotor via a reduction gearing.

2. A comminution machine according to claim 1, wherein the reduction gearing comprises a V-belt drive.

3. A comminution machine according to claim 1, wherein the reduction gearing comprises a chain drive.

4. A comminution machine according to claim 1, wherein the reduction gearing comprises a toothed-wheel gearing.

5. A comminution machine according to claim 4, wherein the toothed-wheel gearing comprises a planetary gearing.

6. A comminution machine according to claim 1, wherein the reduction gearing comprises a hydrodynamic gearing.

7. A comminution machine according to claim 1, wherein a clutch is disposed in the drive train between the synchronous motor and the rotor.

8. A comminution machine according to claim 7, wherein the clutch is disposed between the reduction gearing and the rotor.

9. A comminution machine according to claim 8, wherein the clutch has a jaw clutch, a friction clutch, a coaxial sleeve clutch, or a hydraulic clutch.

10. A comminution machine according to claim 7, wherein the clutch has a jaw clutch, a friction clutch, a coaxial sleeve clutch, or a hydraulic clutch.