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Clutch Testing - Axial/Torsion

Clutch Testing - Axial/Torsion

Dry friction clutches are among the means used for application (moving off from rest without difficulty) and interruption of torque flow. 

In addition to the above-mentioned axial characteristic curves, torque characteristic curves are therefore also extremely important 

  • zero crossing (average value of angle of rotation between loading and unloading) 
  • pre-damper and main damper characteristic curve (angle or torque controlled)     
  • partial curve (similar to pre-damper and main damper curve; here for determining friction coefficient) 
  • drag torque (min. permissible torque after declutching). 

In addition to torque characteristic curves the following axial curves are determined: 

  • characteristic curve of facing/cushioning springs (force/travel characteristic curve of spring between the clutch plates) 
  • non-parallelism (measurement of non-parallelism at pre-load) 
  • thickness of clutch plates (measurement of plate thickness at pre-load)

The test plant has the following features: 

  • horizontal layout (component mounting alignment) 
  • two-axis system with two independently controlled drive shafts. 

Force/torque measuring platform capable of measuring very low torques (from 1 Nm, e.g. drag torque, zero crossing) and very large moments (up to 1000Nm, e.g. main damper characteristic curve) with simultaneous measurement of axial force of up to 20kN. 

 

Typical Products for this Application


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