The Influence of Initial Commutator Surface Roughness on Wear of the Starter Motor Commutation System

Abstract:

One way to improve the run-in period of the commutation system of an electrical motor is the modification of the commutator ́s roughness. The reduction of the run-in period affects the wear during the motor life time. Therefore, within this paper the influence of the initial commutator roughness on the run-in period and the electromechanical wear is investigated. The research is done with a special starter components test rig. During the tests the wear is analyzed while the applied electromechanical and mechanical load is varied in order to enforce different wear behaviors. It is expected that with an optimal initial surface roughness the amount of wear is reduced until the steady state has been reached. However, the results revealed that there is no significant influence of the initial surface roughness on the examined electromechanical tribological system. It was found, that the mechanical wear of the commutator and the brushes is similar to the electromechanical wear during the run-in period. The run-in period of the mechanical load tests is shorter compared to the other experiments.

• Periodical: Advanced Materials Research (Volumes 966-967)
• Pages: 96-102
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.966-967.96
• Online since: June 2014
• Authors: Tanja Spremberg*, Ingo Engler, Berend Denkena
• Keywords: Electric Motor, Roughness, Surface, Wear

References

[1] European commission: Amending Regulation (EC) No. 443/2009 to define the modalities for reaching the 2020 target to reduce CO2 emissions from new passenger cars, Proposal for a regulation of the European parliament and of the council, COM/2012/393, Brussels, (2012).

[2] Robert Bosch GmbH Starter Motor and Generator: Start/Stop technology reduces CO2 emissions and saves fuel, company brochure, 292000P0K6, 2013, p.4.

[3] Möckel, A.: Kontaktsystem und Kommutierung der Kommutatormotoren kleiner Leistung, Habilitation, Technische Universität Ilmenau, 2008, in German language.

[4] Czichos, H.; Habig, K. -H.: Tribologiehandbuch: Tribometrie, Tribomaterialien, Tribotechnik: Reibung und Verschleiß, Vieweg+Teubner Verlag, Wiesbaden, 2010, in German language, p.245 ff.

DOI: 10.1007/978-3-8348-2236-9_4

[5] Holm, R.: Electric Contacts: Theory and Applications, Springer Verlag 2000, pp.110-268.

[6] Kragelski, I. V.; Dobyčin, M. N.; Kombalov, V. S.: Grundlagen der Berechnung von Reibung und Verschleiß, Carl Hanser Verlag, München, Wien, 1983, in German language.

DOI: 10.1002/mawe.19830140612

[7] Schunk GmbH: Humidity, Technical information, http: /www. schunk-group. com/en/press/media-center/technical-information/, date of access: 5th December (2013).

[8] Grote, K. H.; Feldhusen, J.: Dubbel: Taschenbuch für den Maschinenbau, Springer Verlag, Berlin, Heidelberg, New York, 2004, 21st edition, p. W24, in German language.

DOI: 10.1007/978-3-642-17306-6