DRT

Dynamic Rolling Testing Machine (DRT)

Dynamic Rolling Testing Machine (DRT)

The machine is designed to perform Dynamic fatigue tests on car disc wheels. The test bench is designed to conduct tests in compliance with both, the ISO as well as specific factory standards.

The machine has a modular design with water cooling of the drum. It can be assembled according to customer requirements and is available with up to four stations.

Mechanical Construction

The machine frame is designed as a welded construction and mounted on vibration dampers. This means that no additional foundation is required.
On the machine frame of the respective test bench side, the carriage is guided on precision linear units with mounted load cell and mounting spindle.
The rolling radius and the offset are determined by a digital measuring system.
The system is equipped with a safety cut-out which, in the event of defects, ensures that the machine returns to the home position and stops the load wheel and spindle with the test wheel.

Processing of measured values

The contact and lateral forces are absorbed directly at the spindle bearing by force transducers (inmess patent). Slide friction and other negative influences therefore do not falsify the measured forces.
The measured values are processed and fed to the measuring computer.
The test plans are created in the measuring computer. The measured values are evaluated and visualized on a monitor.
The test specifications, measurement results and other information are stored in a database for each individual test.

Applied standards

2006/42/EG -CE machinery directive
ISO 8644 Motorcycles-Light-alloy-Test method
Directive for test of special wheels for vehicles and their trailer § 30 StVO (1998)

References

Customer	Location
TÜV AUSTRIA	Austria
Mapsa	Spain
VW	Mexico
KDIKO	Iran
AMW	India
TÜV	Germany
VW	Germany
VW	China

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