Design of Mechanical Screw Jackfor Mercedes E class
Keywords:
Jack, Power Screw, Ergonomic, Pinion Gear, Speed Reduction, TorqueAbstract
This paper analyzes the modification of the existing screw jack by incorporating an electric motor in the screw
inorder to make load lifting easier. In this modified design, the power screw is rotated through its connecting gear with the
pinion gear which transmits its rotating speed to the pinion gear meshing with the bigger gear connected to the power screw
to be rotated with required speed reduction and increased torque to drive the power screw. 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 reduce
health risks especially back ache problems associated with doing work in a bent or squatting position for a long period of
time. The modified car jack is easy to use by pregnant women or whoever had problem with the vehicle tyre along the road.
The designed jack will also save time and requires less human energy to operate. The design when adopted will effectively
curb the problems associated with Ergonomics - which is a fundamental concept of design process. The Design a mechanical
screw jack is for Mercedes e class having weight 1400kg and ground clearance 180mm.