Experimental Investigation of Automatic Cooling of V-Belts Used in the Drive of Cast Pulleys

Abstract

As it is known, V-belts, which are an important element of the automotive industry, are used as a insurance in the protection of the machine as well as in reducing the speed. It is not possible to provide this insurance situation with gear or (chain) gears, which are also used in reduction of speed. Therefore, it has an important place in the automotive industry. In this study, cast pulleys were designed and manufactured, 8-16-32 straight and curved vanes were attached to the pulleys, and the effect of V-belts and pulleys on cooling was investigated. It was investigated how these vane types and numbers will affect the temperature compared to the normal pulley when the determined total number of revolutions (4000-8000-16000-32000-64000 revolution) is reached. Belt and pulley temperatures were measured with an infrared laser thermometer. In the study, it was seen that the type and number of vanes that gave the best results compared to the normal pulley were 32 forward vane pulleys. It was analyzed using SPSS T-Test analysis program. Looking at the analysis results, it was seen that the standard deviation amounts were at an acceptable value. SPSS correlation coefficient test analysis showed that 32 forward vane pulleys decreased the temperature the most compared to the normal pulley. We think that the results obtained as a result of these studies will be an important contribution to the automotive industry and machines using V-belts.