perencanaan poros

7/21/2019 perencanaan poros

http://slidepdf.com/reader/full/perencanaan-poros-56da3d988022f 1/10

Perencanaan ElemenMesin

BAB IV

PERHITUNGAN

4.1 Perencanaan Transmisi Pulley

Data yang tersedia:

Nmotor = 1450 rpm

N poros = 750 rpm

HP motor =3 HP dengan efisiensi 86%

Ana isa:

Dengan rasio diameter p! ey se"esar 1#$3 &a'a dipi i( p! ey "erdasar'an

'ata og yait! D 1=3#75 in)(i se(ingga D 1 = 7#*3 7#*5 in)(i

+e ain it! "erdasar'an 'ata og yang dipa'ai # ma'a didapat

, p! ey1=1#4 "

, p! ey*=3#3 "

Perencanaan Elemen Mesin

Jurusan Teknik Mesin FTI-ITS




4.2 Perencanaan Dimensi Belt

-e t yang dig!na'an ada a( . "e t

4.3 Perencanaan P r s 1

Data poros /:

orsi 2 = *16#7* " inP! ey : gaya tangensia A A2 = 8$#68 "

-erat A - 2 = 3#3 "

DA = 7#*5 in

o!nd - ade : "erat 2 = 8#8* "

D = 1* in

Peren)anaan dimensi pan ang poros :

Diam"i pan ang poros 1 ada a( *4 in dengan pertim"angan# ara' "anta an -dengan P! ey se"esar 6 in# ara' "anta an D se"esar 1* in ter(adap o!nd - ade

Dimana o!nd " ade "erada diantaran 'ed!a "anta an dengan ara' ter(adap

"anta an - se"esar 6 in





- (

-


Ana isa gaya9gaya

Verti!al



A

6 in)

6 in

-

1 * i n

,

, A

A

D

D

D (

A

-

D




-idang momen erti'a :

→ 01 = x 0=

AH M

" in



1 *

1 * 3

3

-.

A;,

A

<*

<3

D

,<1

*

A

- D

,

6 in 6 in 1* in DA

A;, A

-




61 = x

3#555−= BH

M " in

→ 0* = x 3#555−=

BH M

" in

6* = x 5#337−=

CH M " in

→ 03 = x 0=

DH M

" in

1*3 = x 5#337−=

CH M

" in

-idang &omen .erti'a

&omen "ending ter"esar di titi' A :

& A = 555#3 " in

Diameter Poros = 1#5 in



-

9555#3 " in

9337#5 " in

DA




&a'a materia poros (ar!s dapat mena(an "e"an

+e(ingga materia yang )o)o' ada a( + 960

4." Perencanaan #antalan $a%a $ r s & n'ey r

Data yang di'eta(!i :

n = 4* rpm

a = *0 "r = 11 "

-erdasar'an data yang di'eta(!i# ma'a dig!na'an sing e ro "a "earing dengan

D "ore = 40 mm +e(ingga "erdasar'an ta"e "earing pada "!'! &a)(ine Design

didapat

= 5040 "

o = 35*0 "

. = 1# e = 0#1$

+e(ingga >=0#1$ ?=*#3 "=3 ball bearing 2

&a'a !m!r "anta an dapat di(it!ng se"agai "eri'!t:

4.( Perencanaan Bantalan $a%a Pem t n)

4.(.1 Perencanaan Bantalan 1 $a%a Pem t n)

Data yang di'eta(!i :

n = 750 rpm






a = 50 "

r = 1*$#85 "



didapat

= 5040 "

o = 35*0 "

. = 1 # e=0#1$

+e(ingga # >=0#56 ?=*#3 "=3 ball bearing 2


4.(.2 Perencanaan Bantalan 2 $a%a Pem t n)

Data yang di'eta(!i :n = 750 rpm

a = 50 "

r = *8#05 "



didapat

= 5040 "






o = 35*0 "

. = 1# e = 0#1$

&a'a# >=0#56 ?=*#3 "=3 ball bearing 2


4.* Perencanaan Pasa!

4.*.1 Perencanaan Pasa! $a%a Pulley 1Di'eta(!i data se"agai "eri'!t:

Dmin = 1#5 in

poros = *16#7* " in, pasa' = 0#*5 inH pasa' = 0#*5 in

N = *Ana isa

@= 4 +) ,D1#5= 4 +) ,D

= 4 N +yp,D1#5= 4 < *16#7* " in < * +yp < 0#*5 < 1#5+yp = 4 < *16#7* " in < * 1#5 < 0#*5 < 1#5+yp = 308*#*4 " in ta"e A9* materia A/+/ 1010 + yp=68 0002

4.*.2 Perencanaan Pasa! $a%a Pulley 2Di'eta(!i data se"agai "eri'!t:

Dmin = 1 inporos = *16#7* " in

, pasa' = 0#*5 inH pasa' = 0#*5 in

N = *Ana isa

@= 4 +) ,D1= 4 +) ,D

1= 4 +) ,D






1= 4 N +yp,D1 = 4 < *16#7* " in < * + yp < 0#*5 < 1+yp = 4 < *16#7* " in < * 1 < 0#*5 < 1+yp = 6$35#04 " in ta"e A9* materia A/+/ 1010 + yp=68 0002

4.*.3 Perencanaan Pasa! $a%a & n'ey rDi'eta(!i data se"agai "eri'!t:

Dmin = 3 inporos = 31500 " in

, pasa' = 0#5 inH pasa' = 0#*5 in

N = 1Ana isa

@= 4 +) ,D1#5= 4 N +yp,D1#5 = 4 < 31500 " in < 1 + yp < 0#5 < 3+yp = 4 < 31500 " in < 1 1#5 < 0#5 < 3+yp = 56 000 " in ta"e A9* materia A/+/ 1010 +yp=68 0002



perencanaan poros

Documents

Transcript of perencanaan poros