Today a locomotive and the railcars it pulls are predominately made up of mechanical compo nents Schae ler is committed to improving these components as well Some of the results achieved were presented at InnoTrans 2016 The new Man crodur material for rolling bearings in combina tion with carbonitriding a case hardening pro cess with carbon and nitrogen is now also used as a tapered rolling bearing unit in heavy freight applications Even when subjected to extreme loads and shocks the Mancrodur bearing delivers performance exceeding that of standard steel by 30 percent says Matthias Kilian Senior Manager Product Management Sales at Schae ler Another Schae ler invention is the wheelset gen erator as a self su cient way of supplying freight rolling stock with electricity enabling the use of additional functions such as GPS condition mon itoring lighting braking assis tants or oper ation of the hinged doors on hopper cars MECHANICALLY INNOVATIVE longer mileage and longer maintenance intervals for fu ture generations of trains At the same time operating reliability is improved This is how CMS works in detail Sensor units spe ci cally developed for rail applications make it possible to measure solid borne noise temperature and rotational speeds on the wheelset bearings thus enabling defects such as rolling bearing failure and imbalances on the wheel tires to be detected On the motor bogie the drive motor and transmission can additionally be monitored by vibration measurements A processor unit processes the raw data into characteristics which reduces the data volume to be transmitted Subsequently the automated analysis of this data is performed either in the Schae ler cloud or on a local device The result is issued in the form of human readable text in other words the engineers don t have to interpret complicated hieroglyphs but can simply read what measures must be taken The lubricant is another crucial aspect with re spect to the durability of a wheelset bearing Due to shearing forces pressures and high temperatures that occur in operation the lubricant ages both mechan ically and chemically and gradually loses its e ect In the worst case this can lead to a so called wheelset hot box which means the train would have to be tak en out of service immediately How fast this aging pro cess takes place is heavily dependent on the service conditions which the Schae ler CMS addresses as well Schae ler s grease service life calculator calcu lates using real loads This makes it possible for mainte nance teams to run load dependent cycles which saves costs says Dr Hans Willi Keßler The most prominent guest at the well frequented Schae ler booth at InnoTrans 2016 was Federal Transpor tation Minister Alexander Dobrindt He called Schae ler a good example that showed how German companies man age to accept the challenge of digitization and transform it into viable forward thinking mobility solutions Dr Stefan Spindler CEO Industrial at Schae ler right in conversation with Federal Transportation Minister Alexander Dobrindt at InnoTrans 2016 An alternative to power supply via the locomotive the wheelset generator from Schae ler 85 here and now

Vorschau tomorrow 03/16 EN Seite 85
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