MEASUREMENT OF THE TEMPERATURE ON TOOTH FLANKS OF GEARS WHILE RUNNING

Peter J. Kral, Stefan Pausch

Abstract

This paper presents a measurement method for measuring temperature values of test gears on a test bed. For better understanding of the wear behaviour of worm gears and for analysing the contact conditions between the flanks of worm and worm wheel in presence of lubricating oil, it is necessary to know the temperature of the contact area. The oil between the flanks is heated by the hot flanks and therefore the viscosity of the lubricating oil is reduced. For this reason the temperature curve of the contact area and thus the oil temperature between the flanks was measured and afterwards applied to a mathematical simulation for calculating the wear. The measurement of the temperatures on the surface of the tooth flank, of the oil temperature in the contact area and in the oil sump is done with aid of thermocouples and temperature-dependent resistors, type PT 100. The construction of the test bed and the measurement circuit is also presented in detail.

Keywords

measurement of temperature, surface temperature, gears, worm gears

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IMEKO-TC4-2001-123.pdf

DOI

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IMEKO TC

TC4 - Measurement of Electrical Quantities

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