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http://dx.doi.org/10.21289/KSIC.2022.25.3.379

A Study on the Low Cost Testing System Development of the Low Speed and High Torque Harsh Reducer  

Park, Taehyun (School of Mechanical Engineering, Kyungnam. University)
Publication Information
Journal of the Korean Society of Industry Convergence / v.25, no.3, 2022 , pp. 379-386 More about this Journal
Abstract
The goal of this research is to verify a performance test system for a low speed, high torque, and harsh reducer at low cost. The reducer rotates a cooling fan with a diameter of 10 meters, in a high temperature (50℃) cooling tower in a geothermal power plant. It requires about 500 kgf·m torque and 47.75 kW power to rotate the fan at a maximum power condition. An expensive dynamometer is commonly used for performance test of a motor or a reducer. In this paper, a low cost system is developed using a hydraulic pump as a load unit to generate torque instead of a dynamometer. We accurately calculated the required power, the flow meter, and the pressure of the pump, and selected to design and optimize the system at minimal cost. The system also applied another reverse reducer and a gearbox to increase the rotational speed and to reduce the torque from the low speed and high torque target reducer. This allows low-cost systems to be built using inexpensive components. The developed system was able to successfully measure the high torque and the low rotational speed of the target reducer at high temperature.
Keywords
Reducer; Testing System; High Torque;
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