sand molen.pptx

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Kelompok 3 1. Rizal Hendrawan C A 115060200111061 2. Gede putra aryadana 125060200111027 3. Dimas Abdillah Akbar 125060207111039 4. Ikhwan kurniawan 135060201111029 5. Bayu Zikrillah Pratama 135060201111065 6. Dimas Reza pahlefi 135060201111039 SAND MOLEN

Transcript of sand molen.pptx

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Kelompok 31. Rizal Hendrawan C A 1150602001110612. Gede putra aryadana 1250602001110273. Dimas Abdillah Akbar 1250602071110394. Ikhwan kurniawan 1350602011110295. Bayu Zikrillah Pratama 1350602011110656. Dimas Reza pahlefi 135060201111039

SAND MOLEN

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Daya motor listrik (Pmotor) : 3hpPutaran motor listrik (n1) : 1750 rpmPutaran pulley output yang diharapkan (n2) : 875 rpm

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• Menghitung panjang sabuk yang dibutuhkan

55,7= L60

5,55) -(10,55 + 25,27) +1,57(10,55 + 30 = L

4C )D - (D + )D + 1,57(D + 2C = L

2

212

12

• Memperkirakan jarak antar pusat puli

D2 < C < 3 (D2 + D1)

10,55< C < 3 (10,55 + 5,55)

10,55< C < 48,3

D1 (Perkiraan) = 5,46 in (Approximate driving sheave size)

D1 (Standart) = 5,55 (Standart driving sheave size)

D2 (Perkiraan) = 11.1 in (Approximate driven size)

D2 (Standart) = 10,55 (Standart driven size)Putaran aktual = 921 rpm

•Menghitung jarak antar pusat pulley aktual

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Belt

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Pulley 1

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Pulley 2

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Perhitungan dan Desain Spur Gear

nP = 921 rpmnG = 200 rpmP = 3 HpK0 = 1,75 Pdes = K0 . P = 1,75 . 3 HpPdes = 5,25 Hp

Sehingga didapat Pd =10

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Menetapkan Jumlah gigi pinion NP = 24Menentukan jumlah gigi pinion

NG =Np (VR) = 24 (2,91)NG = 110

Menghitung Kecepatan Output AktualnG = np (Np/NG) = 875(24/70)nG = 201 rpm

Menentikan Diameter PitchUntuk Pinion:DP =

= 24/10Dp = 2,4 in

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Menghitung lebar muka pinion dan lebar gigi

Lower Limit = 8/Pd= 8/10

= 0,8 inUp Limit = 16/Pd

= 16/10= 1,6 in

Nominal Value = 12/Pd= 12/10= 1,2 in

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pinion

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Roda gigi

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Gambar 3D

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Perhitungan dan Desain Poros 1

Data yang diketahui :Diameter Pulley = 10,55 in =

0,267 mN pulley = 921 rpmP = 3 HP = 2237 wattDiameter Gear Pinion = 0,03 m

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Menentukan Diagram Gaya, Geser dan MomenDiagram Benda Bebas (skala 1 : 25)

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Diagram Geser dan Momen

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Perhitungan dan Desain BevelDiketahui:nP =200 rpmnG = 40 rpmsudut tekan = 20° Dari grafik desain power transmisi diketahui:

gambar 4.11 (terlampir)m = 3Pd = 8Np = 24Rasio pebandingan bevel gear :mG = nP / nG = 200/ 40 = 5NG = mG . NP = 5 . 24 = 120

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Pinion Bevel

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Roda Gigi Bevel

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Perhitungan dan Desain Pasak 1

Diameter poros = 0,5842 inch = 7/16, berdasarkan table 4.9 (Terlampir) didapat W = ⅛ dan H= ⅛, Torsi gear = 205,337 lb.in

Mendesain tinggi chordalY = = = 0,16669 inchi

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Mendesain depth of shaft key set

S =

=

= 0,131 inchi Mendesain depth of hub key set

S =

=

= 0,131 inchi Mendesain panjang pasak (L)

AISI 1020 CD Steel

Su = 420 Mpa = 60. Sy = 330 Mpa = 50.

Panjang minimal pasak

Td =

= 12500 Psi

L =

=

= 0,45 inch

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Pasak 1

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Perhitungan dan Desain Bearing I

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Bearing 1

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Perhitungan dan Desain Poros 2

Data yang diketahui :• D gear = 11 in = 0,279 m• n = 200 rpm• p = 3 HP = 2237 Watt• D bevel = 3 inch = 60,96 mm = 0,076 m

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Poros 2

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Perhitungan dan Desain Pasak 2 Diameter poros = 1 inch = 7/8 berdasarkan tabel 4.9 (Terlampir) didapat W = 1/4 dan

H= 1/4, Torsi gear = 106,86 lb.in Mendesain tinggi chordal

Y = = = 0,40 inchi Mendesain depth of shaft key set

S = = =0,75 inchi Mendesain depth of hub key set

S = = = 1 inchi

Mendesain panjang pasak (L)

AISI 1020 CD Steel

Su = 420 Mpa = 60.

Sy = 330 Mpa = 50.

Panjang minimal pasak

Td =

= 12500 Psi

L =

=

= 0,075 inch

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Pasak 2

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Perhitungan dan Desain Bearing 2

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Bearing 2

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kesimpulan