JAC-I/A Balancing and Diagnostic System for Rear-Axle Modules0 pages

JAC-I/A
Balancing and Diagnostic System for Rear-Axle Modules
• Balancing of the drive train
• Testing the rear axle drive in the
installed condition (NVH = Noise
vibration harshness,VAD = Vibroacoustic diagnosis)
• Function test
• Automatic test sequence
Range of application
Quality testing of drive modules (front-mounted rear-axle
with drive shafts) of passenger vehicles and light commercial
vehicles.
Suitable for measurement and correction of the unbalance,
improvement of the NVH characteristics through vibroacoustic evaluation of the assembly structure as well as
diagnosis of the noise properties of components (differential,
drive shaft, bearing).
Application in production, integrated into the assembly line.
Design
Single-station machine with fully automatic test sequence,
loading and unloading by a pallet system.
Consisting essentially of vibration isolated machine frame for
testing as if installed, measurement and control cabinet with
test-stand PC and drive, positioning device for adaptation to
the work-piece type on hand, protective enclosure.
Sequence of operations
• Transport the rear-axle module on pallet by roller conveyor
and close the protective equipment (loading door)
• Lift the pallet, clamp, couple the drive and synchronizer,
attach the sensors for unbalance measurement, lower the
pallet, close the safety devices.
shaft (with type mix), run up and regulate the load,
measure the required torque and differential ratio, measure
the initial unbalance, structure-borne sound and the
possible test weight and correction positions, brake, index,
add the test weight, and carry out a further measuring run,
brake, index, remove the test weight, calculate the coefficient and initial unbalance. Compare with tolerances
(for coefficient and unbalance).
• When out of tolerance: Index for unbalance correction,
open the operating doors, manually add the unbalance
correction according to the display, close the doors and
perform a check run.
• When in tolerance: Mark, travel to home position, open
loading doors, move the pallet out.
Special features
• Modular construction as a single station with free
positioning of test part (installation position)
• Powerful industrial PC for control of the test sequence and
measured value processing
• Software module for VAD procedure and measurement of
• Fully automatic test sequence: Check the length of the drive
Schenck RoTec GmbH
Landwehrstrasse 55
D-64293 Darmstadt
static unbalance; large rotor type data memory, operator
prompting, diagnostic program, statistics, process control,
external interfaces
Telefon (0 61 51) 32 23 11
Telefax (0 61 51) 32 23 15
http://www.schenck-rotec.de
E-Mail rotec@schenck.net