A Design and Construction of Patient Food Trolley for using in the Hospital Driven by DC Motor in the Sermngam Lampang Hospital
Keywords:
trolley, patient food trolley, hospital, DC motor, batteryAbstract
The aim of this research was to design and construct a hospital patient food trolley driven by DC motor. The study was carried out at Sermngam Hospital, Lampang. The design dimensions of the trolley had a width of 0.8 meters, a length and height of 1.2 meters, and could accommodate 32 trays of food with a total weight of not more than 200 kilograms. The structure and body of the trolley were made of stainless steel. Power was transmitted using a DC Motor via conveyor belts with a power rating of 500 watts, 24 volts. Having performed standard test drives on a horizontal level and a slope of 15 degrees, results showed that the trolley could drive on slopes not more than 15 degrees at a maximum speed of 2.88 kilometers per hour. The duration of battery usage in the case of continuous use was 2 hours. In the case of food transportation along the Sermngam Lampang hospital route, the trolley covered a distance of 660 meters per day. The battery can be used for 5 days per single charge and has an average lifetime of 8-10 months.
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