Low-Speed Bearings Diagnostic Equipment

Abstract

The subject of paper is the design of control system of slow running bearings including strength analysis and load capacity measurement with the intention to apply the results to the manufacturing operation by the chain conveyor in the paint shop. The diagnostics of low-speed bearings is very desirable in a wide range of industrial sectors. Mainly, in the transport technologies is necessary to identify the damaged bearing before a production failure and large economic losses become. Chain conveyors are used in the bodywork painting process and chain wheels are mounted on shaft, which is currently mounted on two roller bearings. Shaft speed is relatively slow, ones of rpm. There is no doubt that the reliability of this construction has a main influence to the volume of production, especially since the paint shop is the bottleneck of whole production process of cars. The diagnostics of high-speed bearings is based on vibration measurement that is reliably used for many years (Sturm and Forster in Einfuhrung in die Theorie der Technischen Diagnostik. Vieweg+Teubner Verlag, Wiesbaden, pp. 18–92, 1990 [1]; Hauptmann in Sensoren—Prinzipien und Anwendungen. Verlag C. Hanser, Munchen, Wien, 1991 [2]). For the diagnostics of low-speed bearings, there is no appropriate physical method, which has been able to identify the bearing damage.