self locking mechanism (1)

7/25/2019 Self Locking Mechanism (1)

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JSS Academy OfTechnical Education

Project Team:

Abhishek.SArun Kumar.NHemanthKumar.C

Mahesh.S

Project Guide: P.N.Sidhappa(Assistant professor)


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Contents Project Title

Project Objective

Introuction Ho! it !orks

Merits an "emerits

Project outcome Time an Cost #stimation

$e%erences


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Project Title

Self Locking Mechanism ForReverse Motion In Vehicles


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Project Objective

To avoid the reverse motion of the vehicle b

!sing an electronic control s"itch to control the!nidirectional bearing# "hich is !sed to lock the

reverse motion of the gear driven shaft in Vehicles$


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Introduction

%erks are e&perienced in the vehicles (' "heelers) !s!all "hen

the A!tomobile moves in !p in a slope# there are chances that the

vehicle might move in reverse direction if the hand brake is not

applied accordingl$ The fre!ent !se of the hand brake not onl

p!ts strain on the driver b!t it has adverse effects on the vehicle shaft

and also there are chances that engine might stop$

Therefore locking the reverse motion is ver important and b!sing a locking mechanism it self locks a!tomaticall preventing the

anticlock"ise rotation of the gear shaft


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How It Works

&e use 'niirectional bearin( !hich is use %or the lockin()ur)ose. The uniirectional bearin( is mounte on the rivin(sha%t an it has inner !heels an outer !heels* the outer!heel is mounte or +tte to the transmission sha%t !here thesha%t rotates in clock!ise or anticlock!ise motion. &e alrea,kno! that jerks occur ue to anticlock!ise motion o% the sha%t.To )revent this motion the inner !heels o% the bearin( isconnecte to a motor riven sha%t !hich is actuate b, aelectronic s!itch. This )revents the rotation o% the sha%t in theanticlock!ise motion b, lockin( the s)rin(s in the bearin(.

Once the s!itch is on* the uniirectional bearin( actuatesan )revents the motion in anticlock!ise irection* hencethere !ont be an, reverse motion on the sha%t* thus)reventin( the jerks e-)erience b, %reuent use o% clutch on

the slo)e.


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Motion o% the sha%t urin( transmission

'niirectional bearin(


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!erits and "emerits

The $everse motion o% the /ehicle is $estricte.'se o% Han brake can be avoie !hile movin( on a

slo)e.0erkin( is avoie !hen the vehicle is movin( on aslo)e.Heatin( o% brake rum is avoie.The !ei(ht on the rivin( Sha%t Increases.The material use %or the uniirectional bearin(

must be havin( hi(h tou(hness an harness* hencethe cost increases.

&obblin( e1ect ma, be e-)erience on sha%ts*hence balancin( the %orces is necessar,.

More s)ace is reuire.


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Project Outcome

artial elimination of hand brake$

Acts as an additional safet device$ It can be !sed in traffic *!nctions as "ell$

It is ver !sef!l for beginners to drive the

vehicle$


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Time Estimation

PA#A!ETE#S

TI!E

23 "esi(nin( 45 a,s

43 Test Anal,sis 'sin(

Catia

45 a,s

63 7abrication 28 a,s

83 7inal Project Moel 9 a,s

53 Project $e)ort 9 a,s

Total $ monthsEstimated cost may %e &'((( to )((((rs*+


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#eferences

23 "esi(n o% machine elements 2 an 4*0..K."as an P.;. Srinivas Murth,* Sa)naPublication.

43 "esi(n o% machine elements :/..hanari* Tata Mc

self locking mechanism (1)

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