electronic car jack
TRANSCRIPT
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PROJECT PRESENTATIONON
ELECTRONIC CAR JACK
UNDER THE GUIDANCE OF
PROF. S.S. CHAUHAN
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Problem Statement
To design and develop electronic
car jack that operates on powerobtained from car battery only if noexternal power source is requiredthus reducing human effort.
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PROJECT MOTIVATION
Many people reported that changinga car tire using existing(manuallyoperated) jack is not a very pleasantexperience.
Specially Women find it moredifficulties due to weaker skeleton
and thus are at a greater risk ofskeletal injuries.
Elderly people also find it very
difficult to use manually operated
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Methodology
In the first phase of the project it wasdecided that to calculate an averageload of various car models. So that
input load can be selected for jackdesign.
Design the jack completely and find
out the torque required to run thejack.
In the second phase, types of gear
selection is required so that applied
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Exiting Jack(SCISSOR JACK IS MOST
COMMON)
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SCISSOR JACK-EXPLODEDVIEW
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SCISSOR JACK-POSSIBLEMODIFICATIONS
Spring loaded struts an be employedbetween central screw and everymember to provide for extrastrength.
To avoid tripping, a folding base canbe employed, which opens during
use.
Side support arms can be used forextra strength & stability.
Multiple set of arms(trunnions)can be
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PROPOSED TRIPPING FREEDESIGN
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CONT.
Most of jack accidents occur due totripping of jack on either of nonsupporting sides,this can be avoidedby using a cross platform as shownabove.
To facilitate efficient storage the
extra supporting bars can be madeto swivelon a hinge such that theplatform can be folded.
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PROPOSED COLLAPSE & TRIPFREE DESIGN
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CONT.
The extended base removes trippingproblem.
Supporting arm adds stabilitybetween top & bottom , thus reduceschances of collapse.
Supporting arms have swivelingjoints and arms can be folded ,therefore jack becomes compactwhen not in use.
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COMPARRATIVE STUDY
Simple design Simple design Complex design
Easy to store Difficult to store Easy to store
Light weight Little extraweight
Increased weight
Poor stability Excellent stabilityExcellent stability
Poor strength Poor strength Greater strength
cheap Moderate cost Expensive
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DESIGN EQUATIONS
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DESIGN ASSEMBLY
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SUBASSEMBLIES OFSELECTED DESIGN
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SELECTED DESIGN(ASSEMBLED)
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MOTOR
Dc motorsuits ourrequirements,because it canbe madeto rotate
into bothdirectionsbychanging
DC power
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MOTOR ROTATES THE SCREW
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Contd.
Motor can be made to rotate the
screw of the jack by simply couplingthe two shafts( screw shaft & motorshaft) through suitable gearingsystem.
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Future Work
Fabricate and assemble the modelcompletely.
Testing of the model in our labs andprepare the testing report.
Final project report preparation.
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THANK YOU