Crack Detection In Rotating Shaft Kit

Crack Detection In Rotating Shaft Kit
Crack Detection in Rotating Shaft Kit

Technical Description of Crack Detection in Rotating Shaft Kit
Cracks due to material fatigue are very dangerous for rotating machines. Early detection of any crack is therefore essential before permanent rupture and often fatal consequences can occur. The crack influences the vibration behaviour of the shaft by changing its rigidity. Using suitable analysis software, this change can be registered and inspection of the machine organised in good time. In the experiment, the crack is simulated by an asymmetric flange joint. Variable tightening of the flange bolts produces a temporary gaping of the butt joint, which closely approximates to the behaviour of a crack. The accessory set-up includes two shafts of different lengths: one short and one long. The short shaft simulates a protruding shaft end, and is loaded with the belt drive.

Specification of Crack Detection in Rotating Shaft Kit
    Investigation of the vibration behaviour of a cracked shaft
    Crack adapter in flange form
    Simulation of the crack by opening bolt joints
    4 Different sized cracks can be simulated
    Short shaft to simulate a protruding shaft end
    Long shaft to simulate an elastic rotor
    Accessory set-up for machinery diagnostic training system
    Stackable box for all components
 Technical Data of Crack Detection in Rotating Shaft Kit
    Flange diameter: D=90mm
    6 Hexagon flange bolts M8x20
Shafts

    Diameter: D=20mm
    Short shaft: L=85mm
    Long shaft: L=200mm
    Max. Permissible bending torques
    Short shaft for belt pulley: 15,9Nm
    Long shaft for mass disk: 3,9Nm

Dimensions and Weight of Crack Detection in Rotating Shaft Kit
    l x w x h: 600x400x120mm (box)
    Weight: approx. 3kg
 
Dimensions and Weight of Machinery Diagnostic System, Base Unit
    LxWxH: 1.100x800x500mm (base plate + hood)
    Weight: approx. 95kg (complete system)