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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