Design and Fabrication of a Motorized Screw Jack for Automotive Applications

Abstract

A screw jack is a mechanical device used for lifting the heavy-duty vehicles. Screw jack is employed by the screw threads for lifting purpose. To operate the screw the handle is used and when the handle is operated clockwise then it lifts the work similarly when the handle is operated in anti-clockwise then it lowers the work. In case of tire flat or changing the tire, the screw jack is very important and useful device. The screw jack is operated manually and when the ancient people when they want to change the tire it is not so easy. So, to overcome the situation it can be employed automatically so that the time is reduced and they can conveniently replace the tire. The motorized screw jack features user-friendly controls, robust safety systems like automatic locks and emergency shut-off functions, and is constructed from durable materials to ensure long-term reliability. It operates via a 12V power supply, typically sourced from a vehicle’s cigarette lighter socket. The project demonstrates that the motorized screw jack can lift a vehicle safely and efficiently, making it a valuable tool for both professional mechanics and everyday vehicle owners. The prototype's performance in load tests confirms its capability to handle substantial weights with improved lifting speed and minimal manual effort.