WELCOME
TO THE PROJECT
SEMINAR ON
AUTOMATIC SCREW
JACK
SUBMITTED BY
GROUP D
CAR JACK
A screw jack is a device by which
the heavy load can be lifted with
the apply of the very little force.
Car jack is a type of the screw
jack which is generally used to
lift the car when its wheel is
need to be mented or to be
repaired.
WORKING OF THE CAR
JACK
The car jack basically work on the conservation of
the motion.
The car jack converts the rotary motion into the
translatory motion.
The car jack is operated by turning the leadscrew
of the jack by some lever mechanism. The jacks
compressive force is obtained through the tensile
force applied by its lead screw.
Acme or trapezoidal thread is generally used in
the leadscrew as this is very strong and can
resists the large load imposed on it .
WORKING OF THE
AUTOMATIC CAR JACK
The automatic car jack basically work on the
conservation of the motion .The automatic car jack
converts the rotary motion into the translatory
motion .The auto. car jack is operated by turning the
leadscrew with the motor and belt and pulley
mechanism which eliminates the requirement of the
human labour to rotate the leadscrew. The motor is
driven by the 12V battery which is generally the
battery of car itself.
ADVANTAGES OF THE
AUTOMATIC CAR JACK OVER
THE CONVENTIONAL CAR
JACK
• No physical labour or man power is
required to lift the car.
•Easy to handle.
•Portable.
•Cheap ( 6,000 approx.).
•Light weight.
IMAGES OF THE CAR JACK
COMPONENT OF THE AUTOMATIC
CAR JACK
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Car jack
Motor
Pulley
Belt drive
Switch board with switches
D.C. Connector mechanism
THANK YOU FOR YOUR KIND
ATTENTION
ANY QUARRIES ???????