08-17-2017, 12:21 AM
Motorized Lifting Jack
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Introduction
The motorized lifting jack is a modified form of conventional screw jack that helps to lift the load using motor as a source of energy and gear box to control the lift of the jack. In this project we aim for the following:
a) Arrange & modify the conventional cylindrical lifting jack by putting extra ring in the center to grip the v belt assembly.
b) To arrange & modify the 12V big D.C. Motor by adding v belt pulley at the output shaft.
c) To construct an angle iron based structure to hold the entire assembly.
d) To design & construct a 5Amp dc power supply to run the project assembly.
LIFTING JACK
Jack (tool), mechanical device used to raise or otherwise exert a force on an object too heavy to deal with by hand. A common example is the automobile jack, which is used to elevate the end of a car by a system of ratchets, gears, and screws.
Lifting jacks are used for leveling or positioning heavy equipment, or for supporting structures. Common types of lifting jacks include bottle, inflatable, pallet, ratchet, scissor, screw, service or floor, toe, and transmission.
TRUSS
Truss is a metal frame used for hanging. Trusses are very strong and able to carry extremely heavy loads. Most truss is now made of aluminium for weight reasons and sections can be bolted together to produce long pieces. Its strength allows it to hold everything from lighting to drapes.
GEARS
Gears, toothed wheels or cogs are positive type drives which are used to transmit motion between two shafts or a shaft and a component having linear motion, by meshing of two or more gears. They have advantage over other drives like chains, belts etc. in case of precision machines where a definite velocity ratio is of importance and also in case where the driver and the follower are in close proximity; the downside is that gears are more expensive to manufacture and their operating cost is also relatively high.