Singl Flank Testing

DESCRIPTION - Principle and Software Single-flankingwälzprüfung

The single-flanking is carried out with two blanks (one wheelset) or with a flange against a teaching gear. The gears are cämmt at a fixed center distance. This corresponds to the target axis distance during the check with two workers. To evaluate both tooth flanks, either the direction of rotation of the drive axle or the load torque can be switched (tensile direction and thrust direction). Prüf speed and load torque can be varied to create the most important operating conditions for fault detection.
 


From the data of the two encoders, the evaluation system calculates, in addition to many other information, the parameters defined in DIN 3960 for the flanking curve.
In addition, the spectral components of the single-flank deviation are calculated. From this, indications of possible sources of error in the production of the gearing can be taken directly. Such errors are, for example, concentricity errors, ovalite and triangle shape, edge geometry­error and surface error.
Of particular interest is the process of single-flanking cooling due to the fact that it can deliver very accurate results down to the sub-micro; range and the unwinding process comes very close to the later use in the gearbox.
If the behavior of the gears is to be evaluated under operating conditions, basically prüf speeds of up to 6000 rpm and torques up to 100 Nm can be realized. At high speeds (guideline value > 60 rpm) a suitable lubrication of the work controls must be provided, otherwise the flank surface may be destroyed. Due to the dynamic conditions during unwinding, it would be better to speak of rotational fault diagnosis at high speeds and no longer of single-flanking.