Clutches and couplings take strain in gear tests

Compact overload clutches are combined with torsionally rigid couplings in automatic gearbox test rigs.

Mayr Antreibstechnik has recently supplied a quantity of Mayr EAS compact overload clutches combined with Mayr Roba-DS torsionally rigid couplings to EGM of Hanover for use on automatic gearbox test rigs.

Transmitting 150kW at 6000rev/min, the Mayr EAS compact overload clutches were selected due to their high running speed capability and immediate drive disengagement facility should a failure occur in a gearbox being tested .

To ensure that no further damage occurs to the both the gearbox and test equipment in the event of a gearbox failure, the drive requires immediate disengagement .

The Mayr EAS compact overload clutch will operate virtually instantaneously on reaching the preset overload torque completely disengaging the drive to ensure no further torque transmission.

Re-engagement to the preset torque after an overload condition being a simple and quick operation without the necessity of special tools, thus minimising any down time .

The Mayr EAS compact clutches enabled the required overload/disengage torques to be easily adjusted to suit each specific application.

The Roba-DS torsionally rigid couplings connecting the EAS compact clutches to the automatic gearboxes required special sleeves of 1030mm length .

With the backlash-free torque transmission of both the EAS compact clutch and the Roba-DS coupling, the high performance drive requirements of the test rig could be satisfied .

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