safety, riding quality, wear-and-tear behavior...
... are primarily determined by wheel-load differences on the vehicle and
the bogies. For being able to meet tolerance requirements set forth in the
regulations for wheel load differences for the whole vehicle, it is first
necessary to check the bogies for minimal wheel load differences and eliminate
impermissible deviations by adjustment of the spring pre stressing. For these
measurements and adjustment work, the bogie is to be located at the bearing
points with the constructive or bearing forces of the freight- car body technically
measured in the bogie tester.
- complete plant building or refitting sets in existing facilities with
measurement computer as well as all measurement and control components
- self diagnosing system for error recognition
- computer controlled sequence of testing and adjustment processes
- easy adjustment work of the given technological sequences and vehicular
data by flexible software
- automatic control of measurement and loading operations on the basis of
direct digital regulation
- minimum maintenance needed
- option: high accuracy determination of bogie geometrics e.g. axle differences
bogie tester consists of the hydraulic aggregate, machine computer and MSR
component groups, including the laser-optical measurement unit.
- measurement track
- pressure framework
- hydraulic unit for load application
- measurement control
- option: geometric measurement system
The bogie to be inspected is set onto the measurement track. Run on bearings
and spring bedded articulation-guided measurement tracks for the measurement
of wheel-loads, are arranged on load cells on the measurement track.
It traverses the measurement track. Hydraulic cylinders for stressing of
the bogie, are arranged vertically on the pressure framework. The two outer
cylinders can be adjusted to be diagonal to the track corresponding to the
interval of the outer support bearing on the boogie; the middle cylinder is
The computer consists of an LCD operator’s terminal, process entry
for force and pressure, process output for servo-valves and control of the
hydraulic aggregate as well as interface [building] groups for peripheral
devices and networking, e.g. an attached printer. After starting the test
procedure, the bogie is loaded according to the theoretical values via DDC.
Upon exceeding the permissible wheel-load differences in the bogie, load alleviation,
setting and loading repeat themselves cyclically. At the conclusion of the
inspection procedure, an inspection protocol is drafted and the bogie data
is filed in a databank.
Beside the programs for the inspection processes, the software includes the
operational complexes of an operating system with integrated monitoring of
the flawless operation, diagnosis for all operational complexes, calibration
of the measurement chains and processed volume regulation.
The laser-optical measurement unit detects the axle positioning as well as
the height setting of the bogie during the process.
option: geometric measurement system
Since test processes wether required by law or by company guidelines may
also require the measurement of geometric bogie values PRODATs testing plants
can be equipped with a geometric measurement system. The devices enables three-dimensional measurements of
coordinats with very high accuracy.
bogie testing plants, bogie test banches, bogie quality control and test systems, modularized, wheel load, test, geometric, measurements satisfying: DIN 27201, DIN EN 16235, measurement system in accordance to DIN ISO EN 7500-1,