gearless transmission report.docx
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GEARLESS TRANSMISSION
A Technical Project Report
submitted in partial fulfilment of
the requirement for the B.Tech. degreeunder Biju Patnaik University of Technology Rourkela.
!ubmitted By
REKHANKIT SASMAL Regd. No. 1201106301
ACHYUTA P. PARIDA Regd. No. 1201106286
SUBRATA BEHERA Regd. No. 13211060!
"IKAS DAS Regd. No. 120110626#
"anuary # $%&'
Under the guidance of
M$%. So&'() T$&*+, S)-oo
PROJECT GUIDE
D$. R. K. M),/
PROJECT CO-ORDINATOR
COLLEGE O ENGINEERING TECHNOLOGY
G-)+,,) B-&4)5e%)$ Od,%-) 7 #1003 I5d,)
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appre!ia(ed ("a( e$$i!ie!y as "i'" as 67-689 are possi+le i 'ear less (ras)issio
)e!"ais).
T"e $irs( appli!a(io o$ ("is )e!"ais) was )ade use o$ ("e :i' :e
Clo!& "a#i' $our dials o ("e (ower o$ odo. T"is !lo!& was is(alled
so)e(i)e +e(wee 1;
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4i'ure 8> ?or&i' )odel o$ Gearless Tras)issio
2. 9ORKING
T"e Gearless (ras)issio or El-+ow )e!"ais) is a de#i!e $or (ras)i((i'
)o(ios a( ay $i2ed a'le +e(wee ("e dri#i' ad dri#e s"a$(. T"e sy("esis o$
("is )e!"ais) would re#eal ("a( i( !o)prises o$ a u)+er o$ pis would +e +e(wee
< (o @ ("e )ore ("e pis ("e s)oo("er ("e opera(io. T"ese pis slide iside "ollow
!yliders ("us $or)a((i' a slidi' pair. Our )e!"ais) "as < su!" slidi' pairs.
T"ese !yliders are pla!ed i a "ollow pipe ad are $as(eed a( 187 (o ea!" o("er.
T"is w"ole asse)+ly is )ou(ed o +ra!&e(s woode (a+le. Power is supplied +ya ele!(ri! )o(or.
T"e wor&i' o$ ("e )e!"ais) is uders(ood +y ("e dia'ra). A uused
$or) o$ (ras)issio o$ power o s"a$( lo!a(ed a( a a'le. 0o(io is (ras)i((ed
$ro) dri#i' (o ("e dri#e s"a$( ("rou'" ("e rods w"i!" are +e( (o !o$or) (o ("e
a'les +e(wee ("e s"a$(s. T"ese rods are lo!a(ed a( ("e "oles equally spa!ed
aroud a !ir!le ad ("ey are $ree (o slide i B ou( as ("e s"a$( re#ol#es. T"is (ype o$
dri#e is espe!ially sui(a+le w"ere qui(e opera(io a( "i'" speed is esse(ial +u( oly
re!o))eded $or "i'" du(y. T"e opera(io o$ ("is (ras)issio will +e appare( +y
("e a!(io o$ oe rod duri' a re#olu(io. I$ we assu)e ("a( dri#i' s"a$( A is
re#ol#i' as idi!a(ed +y arrow ("e dri#e s"a$( : will ro(a(e !ou(er !lo!&wise.
As s"a$( A (urs ("rou'" "al$ re#olu(io C s"ow i ("e ier ad )os( e$$e!(i#e
dri#i' posi(io slides ou( o$ +o(" s"a$(s A B :. T"e $irs( "al$ re#olu(io ad rod
C ("e will +e a( ("e (op ("e duri' ("e re)aii' "al$ ("is rod C slide i
wards u(il i( a'ai rea!"es (o ier )os( posi(io s"ow i 4i'. i ("e )eaw"ile
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("e o("er rods "a#e o$ !ourse passed ("rou'" ("e sa)e !y!le o$ )o#e)e(s all rods
are su!!essi#ely slidi' iwards ad ou(wards.
Al("ou'" ("is (ras)issio is a old oe )ay )e!"ai!s are s&ep(i!al a+ou(
i(s opera(io* "owe#er i( is o( oly pra!(i!a+le +u( "as pro#ed sa(is$a!(ory $or
#arious appli!a(ios w"e ("e dri#e is $or s"a$(s w"i!" are per)ae(ly lo!a(ed a(
'i#e a'le. Al("ou'" ("is illus(ra(io s"ows a ri'"( a'le (ras)issio ("is dri#e
!a +e applied also (o s"a$(s lo!a(ed a( i(er)edia(e a'le +e(wee 7 ad 67.I
)a&i' ("is (ras)issio* i( is esse(ial (o "a#e ("e "oles $or a 'i#e rod lo!a(ed a!!ura(ely i
("e sa)e "oles )us( +e equally spa!ed i radial ad !ir!u)$ere(ial dire!(ios*
ea!" rod s"ould +e +e( (o a( a'le a( w"i!" ("e s"a$( are (o +e lo!a(ed. I$ ("e "oles
drilled i ("e eds o$ ("e s"a$(s "a#e +lid or !losed eds* ("ere ou'"( (o +e a
s)all #e( a( ("e +o((o) o$ ea!" rod "ole $or ("e es!ape o$ air !o)pressed +y ("e
pu)pi' a!(io o$ ("e rods. T"ese "oles are use$ul $or oili' (o a#oid +lid "oles
s"a$(s )ay "a#e elar'ed por( or s"oulder. T"is (ras)issio )ay +e pro#ided
!e(rally ad i lie wi(" ("e a2is o$ ea!" s"a$( ad pro#ided wi(" a !ir!ular 'roo#e
a( ea!" rod or a !ross-pi (o per)i( ro(a(io o$ ("e s"a$( a+ou( ("e rod si)ply a!(i#e
as a re(aii' de#i!e $or s"ippi' ad "adli' purposed.
3. APPLICATION
T"e $ea(ured produ!( "as i(s wides( appli!a(io as a e2(esio $or a so!&e(
wre!". %ere ("e desi' )a&es i( easy (o rea!" $as(eers i ("e au(o)o(i#e ad o("er
)e!"ai!al idus(ries* w"ere dire!( a!!ess (o +ol(s ad s!rews is o$(e li)i(ed.
%owe#er* ("e possi+le appli!a(ios $or ("is (e!"olo'y e2(ed i(o u)erous $ields.
Jus( ("i& o$ ("e possi+ili(ies $or power (ras)issio i pus" +i&es* (oys ad "ad-
!ra&ed equip)e(* or $or )o#e)e( (ras)issio i s(ore ad ou(door si'a'e.
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1. Dri#i' $or all &ids $our $a!ed (ower !lo!&s. T"e el+ow )e!"ais) was
$irs( used i ("e year 1;@= $or ("e $a)ous odo (ower !lo!& a)ed +i' +e.
8. T"e )e!"ais) is i#aria+le used $or )ul(iple spidle drilli' opera(io
!alled ("e 'a' drilli'.
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I: MANUACTURING METHODS;<
:e#el 'ears* w"i!" are s(rai'"( (ee(" or spiral (ee(" are )au$a!(ured o
spe!ial purposes )a!"ies. T"ese require lar'e a)ou( o$ !al!ula(io ad e#ery
pair or se( o$ 'ear are )ade (o'e("er ad ("ere is o i(er!"a'ea+ili(y.
T"e 'earless dri#e "as ("is ad#a(a'e ("a( i( !a +e )a!"ied ad )au$a!(ured o
!o#e(ioal )a!"ies ad i( pro#ide !o)ple(e $reedo) o$ i(er!"a'ea+ili(y.
II: 9ORKING PRINCIPLE;<
A 'ear !o)prises o$ a $rus(u) o$ a !oe wi(" (ee(" ou( o i(s perip"ery .T"e dri#i' 'ear
)ou(ed o ("e ipu( s"a$( )es"es wi(" ("e dri#e 'ear ad ("us pro#ides )o(io a( ri'"( a'le
(o ("e ipu( s"a$(.
T"e wor&i' o$ ("e 'earless dri#e "as +ee e2plaied i ("e earlier !"ap(er
ad i( o+#iously #ery di$$ere( $ro) ("e a+o#e.
III: CAUSE O AILURE;<
/(ar(i' wi(" ("e pri!iple ("a( $ailure id ("e resul( o$ ("e s(ress i.e. !odi(io
)ore se#ere ("a ("e )a(erial !a wi(" s(ad. T"e #arious (ype o$ $ailures su!" as pi((i'*
!orrosio* erosio* $a(i'ue e(!. Cause ("e weari' o$ ("e 'ear (oo(" resul(i' i ("e
(oo(" leads (o ("e repla!e)e( o$ ("e e(ire 'ear se(* w"i!" is #ery e2pesi#e.
T"e e$$e!( o$ pi((i'* erosio* !orrosio e(!. will +e prese( i ("e 'earless
dri#e also +u( ("e e$$e!( o$ ("ese will +e o( +e as se#ere as i ("e !ase o$ 'eared
dri#e* $ailure will (a&e pla!e i ("e pis(o e.'...Ei("er +edi' or !ra!& o$ ("e pis*
+u( ("e )ai ad#a(a'e is ("a( oly par(i!ular pi will "a#e (o +e repla!ed is(ead
o$ !ase o$ $ailure.
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"I: MATERIAL;<
T"e )a(erial !"ose $or ay !o)poe( )us(
1. +e easily a#aila+le
8. +e !apa+le o$ +ei' pro!essed i ("e desired e)aa(ios ad
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"II: LIE AND EICIENCY;<
Desi'ed li$e represe(s ("e (o(al period o$ opera(io* re'ardless o$ ay
#aria(ios o$ (orque or speed* w"i!" )ay o!!ur duri' ("a( ("e (i)e. T"e 'eared
dri#e is !apa+le o$ 'i#i' a e$$i!ie!y o$ a+ou( 79 ad !er(ai errors li&e
+a!&las"* "u(i' e(!... !ao( +e eli)ia(ed.
I ("e 'earless dri#e* al("ou'" ("e li$e "as o( +ee !al!ula(ed +u( i( is assu)ed ("a( i(s
li$e will +e i !o)pariso (o ("a( o$ 'eared dri#e +u( i(s e$$i!ie!y !ould +e as "i'" as @=9 (o
689 wi(" proper lu+ri!a(io ad !ooli'.
#. SELECTION O MATERIAL
T"e proper sele!(io o$ )a(erial $or ("e di$$ere( par( o$ a )a!"ie is ("e
)ai o+,e!(i#e i ("e $a+ri!a(io o$ )a!"ie. 4or a desi' e'ieer i( is )us( ("a( "e +e$a)iliar wi(" ("e e$$e!(* w"i!" ("e )au$a!(uri' pro!ess ad "ea( (rea()e( "a#e
o ("e proper(ies o$ )a(erials. T"e C"oi!e o$ )a(erial $or e'ieeri' purposes
depeds upo ("e $ollowi' $a!(ors>
1. A#aila+ili(y o$ ("e )a(erials.
8. /ui(a+ili(y o$ )a(erials $or ("e wor&i' !odi(io i ser#i!e.
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1. S+$e5g+-; I( is ("e a+ili(y o$ a )a(erial (o resis( ("e e2(erally applied $or!es
8. S+$e%%; ?i("ou( +rea&i' or yieldi'. T"e i(eral resis(a!e o$$ered +y apar(
(o a e2(erally applied $or!e is !alled s(ress.
>5e%%; I( is ("e a+ili(y o$ )a(erial (o resis( de$or)a(io uder s(resses.
T"e )odules o$ elas(i!i(y o$ ("e )easure o$ s(i$$ess.
. E)%+,/,+(; I( is ("e proper(y o$ a )a(erial (o re'ai i(s ori'ial s"ape
a$(er de$or)a(io w"e ("e e2(eral $or!es are re)o#ed. T"is proper(y is
desira+le $or )a(erial used i (ools ad )a!"ies. I( )ay +e o(ed ("a( s(eel
is )ore elas(i! ("a ru++er.
=. P)%+,/,+(; I( is ("e proper(y o$ a )a(erial* w"i!" re(ai ("e de$or)a(io
produ!ed uder load per)ae(ly. T"is proper(y o$ )a(erial is e!essary $or
$or'i'* i s(a)pi' i)a'es o !ois ad i ora)e(al wor&.
;. D&/+,,+(; I( is ("e proper(y o$ a )a(erial ea+li' i( (o +e draw i(o wire
wi(" ("e appli!a(io o$ a (esile $or!e. A du!(ile )a(erial )us( +e +o("
s(ro' ad plas(i!. T"e du!(ili(y is usually )easured +y ("e (er)s* per!e(a'e
elo'a(io ad per!e( redu!(io i area. T"e du!(ile )a(erials !o))oly
used i e'ieeri' pra!(i!e are )ild s(eel* !opper* alu)iu)* i!&el* i!* (i
ad lead.
. B$,++e5e%%; I( is ("e proper(y o$ )a(erial opposi(e (o du!(ile. I( is ("e
proper(y o$ +rea&i' o$ a )a(erial wi(" li((le per)ae( dis(or(io. :ri((le
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)a(erials w"e su+,e!(ed (o (esile loads sap o$$ wi("ou( 'i#i' ay
sesi+le elo'a(io. Cas( iro is a +ri((le )a(erial.
@. M)e)4,,+(; I( is a spe!ial !ase o$ du!(ili(y* w"i!" per)i(s )a(erial (o +e
rolled or "a))ered i(o ("i s"ee(s* a )allea+le )a(erial s"ould +e plas(i!
+u( i( is o( esse(ial (o +e so s(ro'. T"e )allea+le )a(erials !o))oly
used i e'ieeri' pra!(i!e are lead* so$( s(eel* wrou'"( iro* !opper ad
alu)iu).
6. To&g-5e%%; I( is ("e proper(y o$ a )a(erial (o resis( ("e $ra!(ure due (o "i'"
i)pa!( loads li&e "a))er +lows. T"e (ou'"ess o$ ("e )a(erial de!reases
w"e i( is "ea(ed. I( is )easured +y ("e a)ou( o$ a+sor+ed a$(er +ei' s(ressed up (o
("e poi( o$ $ra!(ure. T"is proper(y is desira+le i par(s su+,e!(ed (o s"o!& a
i)pa!( loads.
17.Re%,,e5/e; I( is ("e proper(y o$ a )a(erial (o a+sor+ eer'y ad (o resis( ro!&
ad i)pa!( loads. I( is )easured +y a)ou( o$ eer'y a+sor+ed per ui(
#olu)e wi(" i elas(i! li)i(. T"is proper(y is esse(ial $or spri' )a(erial.
11.C$ee*; ?"e a par( is su+,e!(ed (o a !os(a( s(ress a( "i'" (e)pera(ure $or
lo' period o$ (i)e* i( will uder'o a slow ad per)ae( de$or)a(io !alled
!reep. T"is proper(y is !osidered i desi'i' i(eral !o)+us(io e'ies*
+oilers ad (ur+ies.
18.H)$d5e%%; I( is a #ery i)por(a( proper(y o$ ("e )e(als ad "as a wide #eri(y o$
)eai's. I( e)+ra!es )ay di$$ere( proper(ies su!" as resis(a!e (o wear
s!ra(!"i'* de$or)a(io ad )a!"ia+ili(y e(!. I( also )eas ("e a+ili(y o$
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("e )e(al (o !u( ao("er )e(al. T"e "ardess is usually e2pressed i
u)+ers* w"i!" are depede( o ("e )e("od o$ )a&i' ("e (es(. T"e
"ardess o$ a )e(al )ay +e de(er)ied +y ("e $ollowi' (es(
aF :riell "ardess (es(
+F Ro!&well "ardess (es(
!F i!&ers "ardess Halso !alled dia)od pyra)idF (es( ad
dF /"ear s!aleros!ope.
T"e s!ie!e o$ ("e )e(al is a spe!ialied ad al("ou'" i( o#er $lows i (o real
)ess o$ &owled'e i( (eds (o s"u( away $ro) ("e 'eeral reader. T"e &owled'e
o$ )a(erials ad ("eir proper(ies is o$ 'rea( si'i$i!a!e $or a desi' e'ieer. T"e
)a!"ie ele)e(s s"ould +e )ade o$ su!" a )a(erial w"i!" "as proper(ies sui(a+le
$or ("e !odi(ios o$ opera(ios. I addi(io (o ("is a desi' e'ieer )us( +e
$a)iliar wi(" ("e )au$a!(uri' pro!esses ad ("e "ea( (rea()e( s"a#e o ("e
proper(ies o$ ("e )a(erials. I desi'i' ("e #arious par( o$ ("e )a!"ie i( is
e!essary (o &ow "ow ("e )a(erial will $u!(io i ser#i!e. 4or ("is !er(ai
!"ara!(eris(i!s or )e!"ai!al proper(ies )os(ly used i )e!"ai!al e'ieeri'
pra!(i!e are !o))oly de(er)ied $ro) s(adard (esile (es(s. I e'ieeri'
pra!(i!e* ("e )a!"ie par(s are su+,e!(ed (o #arious $or!es* w"i!" )ay +e due (o
ei("er oe or )ore o$ ("e $ollowi'.
1. Eer'y (ras)i((ed
8. ?ei'"( o$ )a!"ie
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Ao("er !ri(eria $or sele!(io o$ )e(al deped upo ("e (ype o$ load +e!ause a
)a!"ie par( resis( load )ore easily ("a a li#e load ad li#e load )ore easily ("a
a s"o!& load. /ele!(io o$ ("e )a(erial depeds upo $a!(or o$ sa$e(y* w"i!" i (ur
depeds upo ("e $ollowi' $a!(ors.
1. Relia+ili(ies o$ proper(ies
8. Relia+ili(y o$ applied load
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ul(i)a(e (esile ad !o)pressi#e s(re'(" o$ ("ese s(eel i!reases wi(" i!reasi'
!ar+o !o(e(. T"ey !a +e easily 'as welded or ele!(ri! or ar! welded. ?i("
i!rease i ("e !ar+o per!e(a'e weld a+ili(y de!reases. 0ild s(eel ser#e ("e
purpose ad was "e!e was sele!(ed +e!ause o$ ("e a+o#e purpose.
BRIGHT MATERIAL;
I( is a )a!"ie dawed. T"e )ai +asi! di$$ere!e +e(wee )ild s(eel ad
+ri'"( )e(al is ("a( )ild s(eel pla(es ad +ars are $or'ed i ("e $or'i' )a!"ie +y )eas is o(
$or'ed. :u( ("e )a(erials are draw $ro) ("e dies i ("e plas(i! s(a(e. T"ere$ore ("e )a(erial
"as 'ood sur$a!e $iis" ("a )ild s(eel ad "as o !ar+o deposi(s o i(s sur$a!e $or
e2(rusio ad $or)a(io o$ e'ieeri' )a(erials ("us 'i#i' ("e) a 'ood sur$a!e
$iis" ad ("ou'" re(aii' ("eir )e(alli! proper(ies.
RA9 MATERIAL AND STANDARD MATERIAL
SR NO PART NAME MAT =TY DECREPTION
1 4RA0E 0/ 1 C se!(io =2 72 ))
8 0OTER /TD 1 7.8= "p 17 rp)
< /%A4T 0/ 8 Dia 87)) 2
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= :ENT IN 0/ < Dia 17 )) 2 87 ))
; PUE CI 8 Dia = B 8=7 ))
PEDE/TA:EARING
CI P87
@ :ET EAT%ER 1 a-=;
6 ANGE ROD 0/ 1
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1. To de(er)ie ("e selli' pri!e o$ a produ!( $or a quo(a(io or !o(ra!( so as
(o esure a reasoa+le pro$i( (o ("e !o)pay.
8. C"e!& ("e quo(a(io supplied +y #edors.
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MACHINING COST ESTIMATION;
T"is !os( es(i)a(io is a a((e)p( (o $ore!as( ("e (o(al e2peses ("a( )ay i!lude (o
)au$a!(ure apar( $ro) )a(erial !os(. Cos( es(i)a(io o$ )au$a!(ured par(s !a
+e !osidered as ,ud')e( o ad a$(er !are$ul !osidera(io w"i!" i!ludes
la+our* )a(erial ad $a!(ory ser#i!es required (o produ!e ("e required par(.
LABOUR COST;
I( is ("e !os( o$ re)uera(io Hwa'es* salaries* !o))issio* +ous e(!.F o$ ("e
e)ployees o$ a !o!er or e(erprise. a+our !os( is !lassi$ies as>
1. Dire!( la+our !os(
8. Idire!( la+our !os(
DIRECT LABOUR COST>
T"e dire!( la+our !os( is ("e !os( o$ la+our ("a( !a +e ide(i$ied dire!(ly
wi(" ("e )au$a!(ure o$ ("e produ!( ad allo!a(ed (o !os( !e(ers or !os( ui(s. T"e
dire!( la+our is oe w"o !ou(ers ("e dire!( )a(erial i(o sale a+le produ!(5 ("e
wa'es e(!. o$ su!" e)ployees !os(i(u(e dire!( la+our !os(. Dire!( la+our !os( )ay
+e appor(ioed (o ("e ui( !os( o$ ,o+ or ei("er o ("e +asis o$ (i)e sped +y a wor&er
o ("e ,o+ or as a pri!e $or so)e p"ysi!al )easure)e( o$ produ!(.
INDIRECT LABOUR COST>
I( is ("a( la+our !os( w"i!" !ao( +e allo!a(ed +u( w"i!" !a +e appor(ioed
(o or a+sor+ed +y !os( !e(ers or !os( ui(s. T"is is ("e !os( o$ la+our ("a( does o(
al(ers ("e !os(ru!(io* !o$ir)a(io* !o)posi(io or !odi(io o$ dire!(
)a(erial +u( is e!essary $or ("e pro'ressi#e )o#e)e( ad "adli' o$ produ!( (o
("e poi( o$ dispa(!" e.'. )ai(ea!e* )e* "elpers* )a!"ie se((ers* super#isors
17
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ad $ore)e e(!. T"e (o(al la+our !os( is !al!ula(ed o ("e +asis o$ wa'es paid (o
("e la+our $or @ "ours per day.
Cos( es(i)a(io is doe as uder
Cos( o$ pro,e!( K HAF )a(erial !os( L H:F 0a!"ii' !os( L HCF la+our !os(
RA9 MATERIAL COST;
I( i!ludes ("e )a(erial i ("e $or) o$ ("e 0a(erial supplied +y ("e /(eel
au("ori(y o$ Idia li)i(edM ad Idia alu)iu) !o.* as ("e roud +ars* a'les*
square rods* pla(es alo' wi(" ("e s(rip )a(erial $or). ?e "a#e (o sear!" $or ("e
sui(a+le a#aila+le )a(erial as per ("e require)e( o$ desi'ed sa$e #alues.
SL. NO NAME O THE
PART?OPERATION
=UANTITY PRICE
71 0./. /"a$( - Rs. 8*@77
78 /"a$( Rod - Rs. 1*77
7< :eari' P!s. Rs. 8*777
7 a("e3?eldi'3Drilli' - Rs.
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. SPECIICATION MANUACTURING O PARTS
MANUACTURING PROCESS;
T"e $ollowi' are ("e #arious )au$a!(uri' pro!ess used i )e!"ai!al
e'ieeri'.
1. PRIMARY SHAPING PROCESS;
T"e pro!ess used $or ("e preli)iary s"api' o$ ("e )a!"ie !o)poe( is
&ow as pri)ary s"api' pro!ess.
2. MACHINE PROCESS ;
T"e pro!ess used $or 'i#i' $ial s"ape (o ("e )a!"ie !o)poe(* a!!ordi' (o
plaed di)esios is &ow as )a!"ii' pro!ess. T"e !o))o opera(iodrilli'* +ori' e(!.
3. SURACE INISHING PROCESS;
T"e pro!ess used (o pro#ide a 'ood s"ape sur$a!e $iis" $or ("e )a!"ie
!o)poe(s are &ow as sur$a!e $iis"i' pro!esses. T"e !o))o opera(io used
$or ("e pro!ess are polis"i'* +u$$i'* lappi' e(!.
. @OINING PROCESS;
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T"e pro!ess used $or ,oii' )a!"ie !o)poe(s are &ow as ,oii'
pro!ess. T"e !o))o opera(io used $or ("is pro!ess are solderi'* +rai'*
weldi' e(!.
PROCESS AECTING CHANGE IN PROPERTIES;
T"ese are i(eded (o i)por( spe!i$i! proper(ies (o )a(erial e.'. "ea(
(rea()e(* "o( wor&i'* !old rolli' e(!.
A: 9ELDED @OINTS;
A welded ,oi( is a per)ae( ,oi(* w"i!" is o+(aied +y ("e $usio o$ ("e
ed'es o$ ("e (wo par(s* (o +e ,oied (o'e("er* wi(" or wi("ou( ("e appli!a(io o$
pressure ad a $iller )a(erial. ?eldi' is i(esi#ely used i $a+ri!a(io as a
al(era(i#e )e("od $or !as(i' or $or'i' ad as a repla!e)e( $or +ol(ed ad
re#er(ed ,oi(s. I( is also used as a repair )ediu).
ADNANTAGES;
1. T"e welded s(ru!(ures are usually li'"(er ("a ri#e(ed s(ru!(ures.
8. T"e welded ,oi(s pro#ide )a2i)u) e$$i!ie!y w"i!" (o i)possi+le
ier#a(ed ,oi(s
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8. I( requires a "i'"ly s&illed la+our ad super#isio.
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1. T"e # - +el( dri#e !oe!( +e used wi(" lar'e !e(re dis(a!es +e!ause
o$ lar'er wei'"(* $or ui( le'(".
8. T"e # - +el( are o( as dura+le as $la(.
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+e per$or)ed
o !u((i' side
ad +ri' i( i
perpedi!ular
!.s. ?eld ("e
!"aels (o ("e
required sie
as per ("e
drawi'
Ele!(ri! ar!
weldi'
)a!"ie
................. Try square 87 )i
= Drilli' ("e
$ra)e a(
required poi(s
as per ("edrawi'
Radial drill
)a!"ie
Twis( drill erier !alliper 17 )i
N)'e o> *)$+; *,5
M)+e$,); 4$,g-+ %+ee
=&)5+,+(; 3
/r. o. De(ail
opera(io
)3! used Tool used a!!essory 0easuri
'
is(ru)e
(
1 0ar&i' o
s"a$(
- - - /!ale
8 Cu((i' as per
dw'
Power
"a!& saw
%o!& saw
+lade
Ji' B
$i2(ures
/!ale
< 4a!i' +o(" a("e /i'le !"u!& erier
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dw' sie
= Drilli' < "ole Drilli'
)a!"ie
Drill erier
!alliper
; 4illi' o +o("
ed
4la( $ile i!e -
N)'e o> *)$+; *&e(
M)+e$,); C.I
=&)5+,+(; 2
/R
NO
DI/CRIPTION
O4
OPERATION
0AC%INE
U/ED
CUTTING 0EA/URE0ENT TI0E
1 Ta&e s(adard
pulley as per
desi'
............. ................ .................... ............
8 4a!e +o(" side
o$ "u+ por(io
a("e )3! /i'le
poi(
!u((i' (ool
erier !alliper 1= )i.
< %old i( i ("ree
,a!& !"u!& B
+ore ier dia
as per s"a$( sie
a("e )3! /i'le
poi(
!u((i' (ool
erier !alliper 87 )i.
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Drilli' ("e "u+
a( required
poi( as per ("e
drawi'
Radial drill
)3!
Twis( drill erier !alliper 17 )i
= Tap ("e "u+ a(
drill area
%ad (ap
se(
(ap erier !alliper 17 )i
8. POSSIBLE IMPRO"EMENTS AND AD"ANCES
8.1 METHOD O IMPRO"ING EICIENCY
T"e )ai )o(io is (ras)i((ed wi(" ("e "elp o$ a slidi' pair w"i!" $or)ed +e(wee
pi B ("e !ylider. T"ese pis "a#e (o +e lapped ad !leaed ad i( s"ould +e !apa+le o$
pro#idi' !o)ple(e i(er!"a'ea+ili(y si)ilarly wi(" ("e !ylider* ("ey (oo "a#e (o +e
"oe or lapped so as (o pro#ide s)oo(" sur$a!e $iis". T"is will resul( i less $ri!(ioal loss ad
less "ea( 'eera(io.
1: LUBRICATION AND COOLING METHODS; <
u+ri!a(io ad !ooli' are a )us( i slidi' )e)+ers. Oe o$ ("e si)ple
(e!"iques applied $or lu+ri!a(io !a +e (o drill oil "oles i ("e !ylider +ody $or
$ill ("a up wi(" oil. :u( ("is (e!"ique will o( +e #ery e$$e!(i#e si!e ("e wei'"( ad use o$
!yliders will i!rease.
2: MODIICATION; <
Oe o$ ("e )e("ods +y w"i!" e$$i!ie!y or per$or)a!e !a +e e"a!ed is
+y i!reasi' ("e u)+er o$ pis. 4ro) ("e wor&i' o$ ("e )e!"ais) we &ow ("a( ("e pi a(
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("e ier )os( posi(io is ("e drawi' pi ("e pis ("e )e!"ais). T"us i$ ("e o. required $or
("e e2( pi (o a((ai ("e ier )os( posi(io is !osidera+le redu!ed ad ("us ("e
per$or)a!e o$ ("e )e!"ais) Bi(s li$e i!reases.
8.2 POSSIBLE AD"ANCE
?e !a also use ("is (ras)issio sys(e) as
1. As lu+ri!a(i' pu)p w"ile (ras)i((i' power.
8. /(ea) e'ie Heli)ia(i' ("e !ra& o$ s"a$( B !o)pli!a(ed
#al#e sys(e)F.
1. LUBRICATING PUMP;<
T"e s)all !"a'e w"i!" "a#e (o i!orpora(e $or ("is purpose is (o pla!e
s(a(ioary dis! a( ("e rear ad i( so $i(s wi(" ("e !ylider ("a( i( a#oids lea& o$ 'ases.
9ORKING;
T"e slo( posi(io ad le'(" is so ("a( ad,us(ed ("a( w"e pi is a( ier )os( posi(io
!ylider )es"es wi(" ("e su!(io por( B su!(io o$ oil is s(ar(ed ("e slo( re)ais
ope (ill pi 'i#e )a2i)u) ou(ward s(ro&e* a$(er ("a( !ylider ed is !losed +y
("e dis!s. Now ("e pi s(ar(s )o#i' iwards ad ("us !o)pressio s(ro&e
!o))e!es. T"e deli#ery slo( lo!a(io is so ad,us(ed ("a( a$(er ("e !o)ple(io o$
@7 (o @=9 o$ !o)pressio s(ro&e* ("e !ylider )es"es wi(" ("e deli#ery s(ro&e B
("us ("e !o)pressed $luid is dis!"ar'ed a( "i'" pressure. T"e deli#ery slo( le'("
was su!" ad,us(ed ("a( re)ais i )es" wi(" !ylider $or 1=(o 879 o$ !o)pressio
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10. CONCLUSION
1. T"is pro,e!(s w"i!" loo&s #ery si)ple B easy (o !os(ru!( was a!(ually #ery
di$$i!ul( (o !o!ei#e B i)a'ie wi("ou( seei' a a!(ual oe i pra!(i!e.
8. ?e $id ("a( w"ile a!!ep(a+le aalysis $or e2is(i' )e!"ais) !a o$(e +e
)ade qui(e easily we !ao( wi("ou( isi'"( B i)a'ia(io )a&e e$$e!(i#e
sy("esis o$ ew )e!"ais) "e!e we are )ould (o prese( ("is our pro,e!(
'earless (ras)issio a( 67HEl-+ow )e!"ais)F w"i!" we "a#e )aa'ed (o
su!!ess$ully de#i!e a$(er lo' B "ard ipu( i !o!ei#i' i(s wor&i' pri!iple.
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