プラスチック歯車の動力伝達時歯面温度分布の計測

概要

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In regard to plastic gears which are used for power transmission, their tooth temperatures have been thought as the most important factor. Because tooth temperature have a great influence on tooth stiffness, brakage, wear, vibration and so on. In this study, the temperature distributions on tooth flanks are measured by a radiation pyrometer. From 40 to 56 points per one tooth flank are selected as measuring points. By using the temperature data got from these measuring points, temperature distribution maps on tooth flanks are drawn. Steel drivers and plastic followers are engaged. Their pitch diameters are 135 mm and modules are 3 and 5. Under running conditions of 300 rpm to 1200 rpm and 19.6 Nm to 78.4 Nm, the following are resulted: (1) Tooth flank temperatures in module 3 are lower than that in module 5. (2) In constant-power transmission, tooth flank temperatures in a combination of high-speed and low-torque are lower than that in a combination of low-speed and high-torque.
長崎大学工学部,Faculty of Engineering, Nagasaki Universityの論文