EP 3918317 A1 20211208 - METHOD AND DEVICE FOR CHECKING RAILWAY WHEELSETS FOR SURFACE DEFECTS
Title (en)
METHOD AND DEVICE FOR CHECKING RAILWAY WHEELSETS FOR SURFACE DEFECTS
Title (de)
VERFAHREN UND VORRICHTUNG ZUR PRÜFUNG VON EISENBAHN-RADSÄTZEN AUF OBERFLÄCHENFEHLER
Title (fr)
PROCÉDÉ ET DISPOSITIF PERMETTANT DE CONTRÔLER LES DÉFAUTS À LA SURFACE D'ESSIEUX FERROVIAIRES
Publication
Application
Priority
- DE 102019102046 A 20190128
- EP 2020050819 W 20200114
Abstract (en)
[origin: WO2020156804A1] The invention relates to a method and a device for checking railway wheelsets for defects on the surface of the wheelsets using a magnet powder method, wherein elements of the wheelsets, in particular axles and wheels, are magnetized in some regions by means of an electric coil assembly for testing purposes, magnet powder is applied to the elements in the checking region of the coil assembly, and the distribution of the magnet powder which occurs when the magnetic field is activated is evaluated. According to the invention, a combination is used consisting of a first coil assembly (11), arranged in a stationary manner relative to the wheel (9, 10) to be checked, for magnetizing some sections and checking the wheel (9, 10) and a second coil assembly (18) which can be moved axially relative to the axle to be checked for magnetizing a part of the circumference and checking the axle shaft (8). In order to completely check a wheel, the wheel is rotated after checking each wheel section. The axle shaft (8) is checked using the second coil assembly (18) at positions which follow one another in the axial direction in a partly circumferential manner in each case. Wheels (9, 0) and axles (8) of the wheelset can be magnetized and checked simultaneously or in a chronologically alternating manner.
IPC 8 full level
G01N 27/84 (2006.01)
CPC (source: EP)
G01M 17/10 (2013.01); G01N 27/84 (2013.01); B60B 17/00 (2013.01)
Citation (search report)
See references of WO 2020156804A1
Designated contracting state (EPC)
AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR
Designated extension state (EPC)
BA ME
DOCDB simple family (publication)
DE 102019102046 A1 20200730; EP 3918317 A1 20211208; WO 2020156804 A1 20200806
DOCDB simple family (application)
DE 102019102046 A 20190128; EP 2020050819 W 20200114; EP 20703146 A 20200114