IRJET-Design, Construction and Testing of an Electric Powered Toggle Jack Mechanism (original) (raw)

Road side emergencies such as tyre punch, is a problem commonly observed in cars. Conventional car jacks uses mechanical advantage to allow a human to lift a vehicle by manual force. This paper is a modification of the current toggle jack by incorporating a servomotor whose motion as well as torque is transmitted via gear trains to the power screw, in order to make load lifting easier for emergency use with the aid of a 12V car battery as power source. Gear ratio is used to increase the lifting power. The significance and purpose of this work is to modify the existing car jack in order to make the operation easier, safer and more reliable in order to save individual internal energy and reduce health risks especially back ache problems associated with doing work in a bent or squatting position for a long period of time. Fabrication work has been done using milling, drilling, grinding, and welding machines. The developed car jack is tested on 1400kg Toyota Camry car. Loads were increased at intervals of 50 Kg using bags of cement and it was observed that, deformation of threads began at loads beyond 1550 Kg. this implies that, the electric powered jack mechanism is capable of lifting vehicles with maximum load of 1550 Kg. The device is highly efficient with high mechanical advantage and jacking speed of 2.98 mm¬s-1 more than that of the manual jack which is 1.17 mms-1. Implementation of design will solve problem associated with ergonomics.