LAPORAN PRAKTIKUM ANALISA GETARAN MESIN
Disusun Oleh : Nama Mahasiswa NIM Program Studi Konsentrasi Diploma Tingkat
: : : : : :
Feraldi Fizarudin 161430011 Teknik Mesin Kilang Teknik Mesin Kilang IV (Empat) III (Tiga)
KEMENTERIAN ENERGI DAN SUMBER DAYA MINERAL BADAN PENGEMBANGAN SUMBER DAYA MANUSIA ENERGI DAN SUMBER DAYA MINERAL POLITEKNIK ENERGI DAN MINERAL Akamigas PEM Akamigas
Cepu,
November 2018
DAFTAR ISI Halaman DAFTAR ISI .......................................................................................................... 1 1. Blower ................................................................................................................ 2 1.1. 1.2. 1.3.
Buat Sket Mesin ................................................................................................... 2 Data Mesin........................................................................................................... 2 Data Bantalan Gelinding ...................................................................................... 3 1.3.1. Perhitungan pada Bearing......................................................................... 4 1.4. Data Gear Box ...................................................................................................... 5 1.4.1. Perhitungan Gear ...................................................................................... 5 1.5. Data Sudu Blower : .............................................................................................. 6 1.5.1. Perhitungan Sudu Blower .......................................................................... 6 1.6. Data Belt .............................................................................................................. 6
2. Piringan 1 ........................................................................................................... 9 2.1. Buat Sket Mesin ................................................................................................... 9 2.2. Data Mesin........................................................................................................... 9 2.3. Data Bantalan .................................................................................................... 10 2.3.1. Perhitungan pada Bearing....................................................................... 10
3.
Piringan 2 ............................................................................................... 12 3.1. Buat Sket Mesin ................................................................................................. 12 3.2. Data Mesin......................................................................................................... 12 3.3. Data Bantalan .................................................................................................... 13 3.4. Perhitungan pada Bearing ................................................................................. 14 3.4.1. Perhitungan pada Bearing 1 dan 2 .......................................................... 14 3.4.2. Perhitungan pada Bearing 3 .................................................................... 14 3.4.3. Perhitungan pada Bearing 4 .................................................................... 15
4. Piringan 3 ......................................................................................................... 16 4.1. Buat Sket Mesin ................................................................................................. 16 4.2. Data Mesin......................................................................................................... 16 4.3. Data Bantalan .................................................................................................... 17 4.3.1. Perhitungan Bearing ............................................................................... 18
5. Pompa ............................................................................................................... 20 5.1. Buat Sket Mesin ................................................................................................. 20 5.2. Data Mesin......................................................................................................... 20 5.3. Data Bantalan Gelinding .................................................................................... 21 5.3.1. Perhitungan pada Bearing 1 dan 2 .......................................................... 22 5.4. Data Sudu Impeller Pompa : .............................................................................. 22 5.4.1. Perhitungan Sudu Impeller...................................................................... 22
6. Kompresor ....................................................................................................... 23 6.1. Buat Sket Mesin ................................................................................................. 23 6.2. Data Mesin......................................................................................................... 23 6.3. Data Bantalan Gelinding .................................................................................... 24 6.3.1. Perhitungan pada Bearing....................................................................... 25 6.4. Data Gear Box ........................................................Error! Bookmark not defined. 6.4.1. Perhitungan Gear ........................................Error! Bookmark not defined. 6.5. Data Belt ............................................................................................................ 26
1
1.
Blower
1.1.
Buat Sket Mesin
1.2.
Data Mesin Blower Nama Model / Type Air Flow Pressure Rotation Power Voltage / Phase Motor Class Serial Number
Centrifugal Blower DE190/Direct 2300 CMH 840 Pa 2800 rpm 1,1 kW 220 V / 1 IP44B 011 211 212 046 Motor Listrik
Nama Model Type Voltage Power Frequency Isolation IP Serial Number Current Cos π
3 Phase Motor IEC 60038 A-Y3A-80 M2-4 B5 220/380 V 0,75 kW 50 Hz F 55 121003007 3,6 / 2,1 A 0.76
2
1.3.
Rotation Data Bantalan Gelinding
1390 m
Data : Putaran mesin (rpm) = Parameter Simbol
1
2
3
4
5
Kode Bantalan Diameter pitch Diameter bola Jumlah bola Sudut kontak
Bantalan 1
2
3
4
5
6
-
6204RZ
6204RZ
6204RZ
6204RZ
6204RZ
6204RZ
Pd
47 mm
47 mm
47 mm
47 mm
47 mm
47 mm
Bd
7.92 mm
7.92 mm
7.92 mm
7.92 mm
7.92 mm
7.92 mm
N
8
8
8
8
8
8
π
0
0
0
0
0
0
3
1.3.1.
Perhitungan pada Bearing Rumus
1
2
3
Hasil
π π
ππ π΅π π΅ππΉπ = π₯ π₯ [1 β cos π] 2 60 ππ
π΅ππΉπ =
π π
ππ π΅π π΅ππΉπΌ = π₯ π₯ [1 + cos π] 2 60 ππ
π΅ππΉπΌ =
1 π
ππ π΅π πΉππΉ = π₯ π₯ [1 β cos π] 2 60 ππ
πΉππΉ =
π©π·ππΆ = ππ, ππ π―π
5
π΅ππΉ1 =
8 1390 7,92 π₯ π₯ [1 + cos 0] 2 60 47 π©π·ππ° = πππ, ππ π―π 1 1390 7,92 π₯ π₯ [1 β cos 0] 2 60 47 ππ»π = π, ππ
2 47 1390 7,92 π΅ππΉ2 = π₯ π₯ {1 β [ cos 0] } 2 π₯ 7,92 60 47
2
4
8 1390 7,92 π₯ π₯ [1 β cos 0] 2 60 47
ππ π
ππ π΅π π₯ π₯ {1 β [ cos π] } 2π΅π 60 ππ
π©πΊπ = ππ, ππ π―π
2 ππ π
ππ π΅π π΅ππΉ2 = π₯ π₯ {1 β [ cos π] } π΅π 60 ππ
π΅ππΉ2 =
2 47 1390 7,92 π₯ π₯ {1 β [ cos 0] } 7,92 60 47
π©πΊπ = πππ, ππ π―π
4
1.4.
Data Gear Box Putaran mesin (rpm)
= 1390 rpm.
Jumlah gigi gear
1.4.1.
1.
Gigi Poros Motor
= 7 buah
2.
Jumlah gigi ke 1
= 10 buah
3.
Jumlah gigi ke 2
= 34 buah
4.
Gigi Keluar Poros
= 42 buah
Perhitungan Gear Berikut merupakan perhitungan frekuensi pada gear : Gigi
Rumus
Hasil
πππππ = ππ ππ Poros Motor πππππ = ππ π₯
πππ 60
πππππ = ππ ππ Ke-1
πππ 60 = ππ ππ
πππππ = ππ π₯ Ke-2
πππππ
πππππ = ππ π₯ Keluar Poros
πππ 60
πππππ = ππ ππ πππππ = ππ π₯
πππ 60
5
πππππ = 7 π₯
1390 60
πππππ = πππ, ππ π―π πππππ = 10 π₯
1390 60
πππππ = πππ, ππ π―π πππππ = 34 π₯
1390 60
πππππ = πππ, ππ π―π πππππ = 42 π₯
1390 60
πππππ = πππ π―π
1.5.
1.5.1.
Data Sudu Blower : Putaran mesin (rpm)
= 1390 rpm
Jumlah sudu (Zs)
= 36 buah
Perhitungan Sudu Blower Berikut merupakan perhitungan pada sudu blower : Rumus
Hasil
ππ π’ππ’ = ππ ππ ππ π’ππ’ = ππ π₯
1.6.
ππ π’ππ’ = 36 π₯
πππ 60
1390 60
ππππ
π = πππ π―π
Data Belt
Data : Putaran mesin (rpm1, rpm2)
= 1390 rpm
/ 342 rpm
Diameter pulley (Dp1, Dp2)
= 33,25 mm
/ 135,05 mm
Panjang belt (Bl)
= 1140 mm
Atau : Jari-jari (r1, r2)
= 16,63 mm
Jarak antar sumbu (c)
= 410 mm
6
/ 67,53 mm
Persamaan : π = βπ 2 β (π2 β π1 )2 , mm π = β4102 β (67,53 β 16,63)2 , mm π = 406,83 ππ π
π·1 = π π1 (90) ,mm Ξ± = 21O π1 = 90π + πΌ π1 = 90π + 21 π1 = 111O π2 = 90π β πΌ π2 = 90π β 21 π2 = 69O π
π·1 = π π1 ( 1 ) ,mm 90 π·1 = π 16,63 (
111 ) 90
π·1 = 64,44 mm
π·2 = 2π π2 (1 β
π2 ) 180
π·2 = 2π π₯ 67,53 π₯ (1 β
69 ) 180
π·2 = 261,65 Belt length (Bl)
= 2l + D1 + D2 = 1139,75 mm = 1140 mm
7
1.7.
Data Pulley
1.7.1.
Putaran mesin 1 (rpm1)
= 1390 rpm.
Putaran mesin 2 (rpm2)
= 342 rpm.
Diameter pulley 1 (Dp1)
= 33,25 mm
Diameter pulley 2 (Dp2)
= 135,05 mm
Panjang Belt (Bl)
= 1140 mm
Perhitungan Pulley Berikut perhitungan pada pulley :
Pulley
Rumus
1
π. π·π1 πΉπ1 = π. πππ1 . , π―π π΅π
πΉπ1 = 1 .1390 .
π. π·π2 πΉπ2 = π. πππ2 . , π―π π΅π
πΉπ2 = 1 .342 .
2
Hasil
8
π. 33,25 , π―π 1140
πππ = πππ, ππ π―π π . 135,05 , π―π 1140
πππ = πππ, ππ π―π
2.
Piringan 1
2.1.
Buat Sket Mesin
2.2.
Data Mesin Motor Listrik Nama Tipe Serial Number Voltage Current Power Cos Γ Frequency Isolation IP Rotation
3 Phase Electric Motor A-Y3A 80 M1-2 B3 120313051 220/380 V 3,2/1,9 A 0,75 kW 0,83 50 Hz F 55 2845
9
2.3.
Data Bantalan
Data : Putaran mesin (rpm) = 2845 Parameter
1
2
3
4
5
Simbol
1
2
3
4
-
6204-2Z
6204-2Z
6204-2Z
6204-2Z
Pd
38,5
38,5
38,5
38,5
Bd
6
6
9
9
N
12
12
14
14
π
0
0
0
0
Kode Bantalan Diameter pitch Diameter bola Jumlah bola Sudut kontak
2.3.1.
Bantalan
Perhitungan pada Bearing 1 dan Bearing 2 Rumus
1
Hasil π΅ππΉπ =
π π
ππ π΅π π΅ππΉπ = π₯ π₯ [1 β cos π] 2 60 ππ
12 2845 6 π₯ π₯ [1 β cos 0] 2 60 38,5 π©π·ππΆ = πππ, ππ π―π
10
2
3
π π
ππ π΅π π΅ππΉπΌ = π₯ π₯ [1 + cos π] 2 60 ππ
π΅ππΉπΌ =
1 π
ππ π΅π πΉππΉ = π₯ π₯ [1 β cos π] 2 60 ππ
πΉππΉ =
π©π·ππ° = πππ, ππ π―π
π΅ππΉ1 =
π΅ππΉ2 =
ππ π
ππ π΅π π₯ π₯ {1 β [ cos π] } 2π΅π 60 ππ
π΅ππΉ2 =
2.3.2.
2 38,5 2845 6 π₯ π₯ {1 β [ cos 0] } 2π₯6 60 38,5
π©πΊπ = πππ, ππ π―π 2 38,5 2845 6 π΅ππΉ2 = π₯ π₯ {1 β [ cos 0] } 6 60 38,5
2
5
ππ π
ππ π΅π π₯ π₯ {1 β [ cos π] } π΅π 60 ππ
π©πΊπ = πππ, ππ π―π
Perhitungan pada Bearing 3 dan Bearing 4 Rumus
1
2
3
4
5
1 2845 6 π₯ π₯ [1 β cos 0] 2 60 38,5 ππ»π = ππ, ππ π―π
2
4
12 2845 6 π₯ π₯ [1 + cos 0] 2 60 38,5
Hasil
π π
ππ π΅π π΅ππΉπ = π₯ π₯ [1 β cos π] 2 60 ππ
π΅ππΉπ =
π π
ππ π΅π π΅ππΉπΌ = π₯ π₯ [1 + cos π] 2 60 ππ
π΅ππΉπΌ =
1 π
ππ π΅π πΉππΉ = π₯ π₯ [1 β cos π] 2 60 ππ
πΉππΉ =
14 2845 9 π₯ π₯ [1 β cos 0] 2 60 38,5 π©π·ππΆ = πππ, ππ π―π 14 2845 9 π₯ π₯ [1 + cos 0] 2 60 38,5 π©π·ππ° = πππ, ππ π―π 1 2845 9 π₯ π₯ [1 β cos 0] 2 60 38,5 ππ»π = ππ, ππ π―π
2 ππ π
ππ π΅π π΅ππΉ1 = π₯ π₯ {1 β [ cos π] } 2π΅π 60 ππ
π΅ππΉ2 =
2 ππ π
ππ π΅π π΅ππΉ2 = π₯ π₯ {1 β [ cos π] } π΅π 60 ππ
π΅ππΉ2 =
2 38,5 2845 9 π₯ π₯ {1 β [ cos 0] } 2π₯9 60 38,5
π©πΊπ = ππ, ππ π―π 2 38,5 2845 9 π₯ π₯ {1 β [ cos 0] } 9 60 38,5
π©πΊπ = πππ, ππ π―π
11
3.
Piringan 2
3.1.
Buat Sket Mesin
3.2.
Data Mesin Motor Listrik Nama Merk Tipe Serial Number Power Current Voltage Rotation Connection Frequency Weight Isolation IP
1 Phase Electric Motor Alliance Motori IEC 34-1 AY71 LI PHS 88863 0,16 kW / 0,25 HP 25 A 220 V 1440 rpm Ξ/Y 50 Hz 14 kg F 55
12
3.3.
Data Bantalan
Data : Putaran mesin (rpm) = 1440 rpm Parameter
1
2
3
4
5
Kode Bantalan Diameter pitch Diameter bola Jumlah bola Sudut kontak
Simbol
Bantalan 1
2
3
4
-
UC202
UC202
6202
6201
Pd
31 mm
31 mm
24,25 mm
23,25 mm
Bd
8,4 mm
8,4 mm
5,75 mm
5,25 mm
N
11
11
11
12
π
0
0
0
0
13
3.4.
Perhitungan pada Bearing Berikut ini hasil perhitungan kemungkinan terjadinya getaran pada
bearing : 3.4.1.
Perhitungan pada Bearing 1 dan 2 Rumus
1
2
3
Hasil
π π
ππ π΅π π΅ππΉπ = π₯ π₯ [1 β cos π] 2 60 ππ
π΅ππΉπ =
π π
ππ π΅π π΅ππΉπΌ = π₯ π₯ [1 + cos π] 2 60 ππ
π΅ππΉπΌ =
1 π
ππ π΅π πΉππΉ = π₯ π₯ [1 β cos π] 2 60 ππ
πΉππΉ =
π©π·ππΆ = ππ, ππ π―π
π΅ππΉ1 =
π΅ππΉ1 =
ππ π
ππ π΅π π₯ π₯ {1 β [ cos π] } 2π΅π 60 ππ
π΅ππΉ2 =
3.4.2.
2 31 1440 8,4 π₯ π₯ {1 β [ cos 0] } 2 π₯ 8,4 60 31
π©πΊπ = ππ, ππ π―π 2 31 1440 8,4 π΅ππΉ2 = π₯ π₯ {1 β [ cos 0] } 8,4 60 31
ππ π
ππ π΅π π₯ π₯ {1 β [ cos π] } π΅π 60 ππ
π©πΊπ = ππ, ππ π―π
Perhitungan pada Bearing 3 Rumus
1
2
3
1 1440 8,4 π₯ π₯ [1 β cos 0] 2 60 31 ππ»π = π, ππ π―π
2
5
11 1440 8,4 π₯ π₯ [1 + cos 0] 2 60 31 π©π·ππ° = πππ, ππ π―π
2
4
11 1440 8,4 π₯ π₯ [1 β cos 0] 2 60 31
Hasil
π π
ππ π΅π π΅ππΉπ = π₯ π₯ [1 β cos π] 2 60 ππ
π΅ππΉπ =
π π
ππ π΅π π΅ππΉπΌ = π₯ π₯ [1 + cos π] 2 60 ππ
π΅ππΉπΌ =
1 π
ππ π΅π πΉππΉ = π₯ π₯ [1 β cos π] 2 60 ππ
πΉππΉ =
11 1440 5,75 π₯ π₯ [1 β cos π] 2 60 24,25 π©π·ππΆ = πππ, ππ π―π 11 1440 5,75 π₯ π₯ [1 + cos π] 2 60 24,25 π©π·ππ° = πππ, ππ π―π 1 1440 5,75 π₯ π₯ [1 β cos π] 2 60 24,25 ππ»π = π, ππ π―π
14
4
2 ππ π
ππ π΅π π΅ππΉ1 = π₯ π₯ {1 β [ cos π] } 2π΅π 60 ππ
π΅ππΉ1 =
π©πΊπ = ππ, ππ π―π
2
5
π΅ππΉ2 =
ππ π
ππ π΅π π₯ π₯ {1 β [ cos π] } π΅π 60 ππ
π΅ππΉ2 =
3.4.3.
2 24,25 1440 5,75 π₯ π₯ {1 β [ cos π] } 2 π₯ 5,75 60 24,25
2 24,25 1440 5,75 π₯ π₯ {1 β [ cos π] } 5,75 60 24,25
π©πΊπ = ππ, ππ π―π
Perhitungan pada Bearing 4 Rumus
1
2
3
Hasil
π π
ππ π΅π π΅ππΉπ = π₯ π₯ [1 β cos π] 2 60 ππ
π΅ππΉπ =
π π
ππ π΅π π΅ππΉπΌ = π₯ π₯ [1 + cos π] 2 60 ππ
π΅ππΉπΌ =
1 π
ππ π΅π πΉππΉ = π₯ π₯ [1 β cos π] 2 60 ππ
πΉππΉ =
π©π·ππΆ = πππ, ππ π―π
5
π΅ππΉ1 =
12 1440 5,25 π₯ π₯ [1 + cos 0] 2 60 23,25 π©π·ππ° = πππ, ππ π―π 1 1440 5,25 π₯ π₯ [1 β cos 0] 2 60 23,25 ππ»π = π, ππ π―π
2
4
12 1440 5,25 π₯ π₯ [1 β cos 0] 2 60 23,25
ππ π
ππ π΅π π₯ π₯ {1 β [ cos π] } 2π΅π 60 ππ
2 23,25 1440 5,25 π΅ππΉ1 = π₯ π₯ {1 β [ cos 0] } 2 π₯ 5,25 60 23,25
π©πΊπ = ππ, ππ π―π
2 ππ π
ππ π΅π π΅ππΉ2 = π₯ π₯ {1 β [ cos π] } π΅π 60 ππ
π΅ππΉ2 =
2 23,25 1440 5,25 π₯ π₯ {1 β [ cos 0] } 5,25 60 23,25
π©πΊπ = πππ, ππ π―π
15
4.
Piringan 3
4.1.
Buat Sket Mesin
4.2.
Data Mesin Motor Listrik Nama Merk Tipe Serial Number Power Current Voltage Rotation Connection Frequency Weight Isolation IP
1 Phase Electric Motor Alliance Motori IEC 34-1 AY71 LI PHS 88863 0,1 kW / 0,25 HP 25 A 220 V 1440 rpm Ξ/Y 50 Hz 14 kg F 55
16
4.3.
Data Bantalan
Data : Putaran mesin (rpm) = 1440 rpm Parameter
1
2
3
4
5
Kode Bantalan Diameter pitch Diameter bola Jumlah bola Sudut kontak
Simbol
Bantalan 1
2
3
4
-
UC202
UC202
6202
6201
Pd
38,5 mm
38,5 mm
24,25 mm
23,25 mm
Bd
6 mm
6 mm
5,75 mm
5,25 mm
N
12
12
8
8
π
0
0
0
0
17
4.4.
Perhitungan Bearing Berikut perhitungan pada bearing :
4.4.1.
Perhitungan Bearing 1 dan Bearing 2 Rumus
1
2
3
π΅ππΉπ =
π΅ππΉπΌ =
Hasil
π π
ππ π΅π π₯ π₯ [1 β cos π] 2 60 ππ
π΅ππΉπ =
π π
ππ π΅π π₯ π₯ [1 + cos π] 2 60 ππ
π΅ππΉπΌ =
π₯
2
60
π₯ [1 β
cos
]
cos
]
π©π·ππΆ = π₯
2
60
π₯ [1 +
π©π·ππ° = πΉππΉ =
1 π
ππ π΅π πΉππΉ = π₯ π₯ [1 β cos π] 2 60 ππ
1 π₯ π₯ [1 β 2 60
cos
]
ππ»π = 2 2
4
π΅ππΉ1 =
π΅ππΉ2 =
ππ π
ππ π΅π π₯ π₯ {1 β [ cos π] } 2π΅π 60 ππ
π₯
2π₯
60
π₯ {1 β [
cos
] }
π©πΊπ = 2
2
5
π΅ππΉ2 =
π΅ππΉ2 =
ππ π
ππ π΅π π₯ π₯ {1 β [ cos π] } π΅π 60 ππ
4.4.2.
π₯
60
2
3
] }
Perhitungan Bearing 3
π΅ππΉπ =
π΅ππΉπΌ =
cos
π©πΊπ =
Rumus 1
π₯ {1 β [
Hasil
π π
ππ π΅π π₯ π₯ [1 β cos π] 2 60 ππ
π΅ππΉπ =
π π
ππ π΅π π₯ π₯ [1 + cos π] 2 60 ππ
π΅ππΉπΌ =
2
π₯
60
π₯ [1 β
cos
]
cos
]
π©π·ππΆ = 2
π₯
60
π₯ [1 +
π©π·ππ° = πΉππΉ =
1 π
ππ π΅π πΉππΉ = π₯ π₯ [1 β cos π] 2 60 ππ
1 π₯ π₯ [1 β 2 60 ππ»π =
18
cos
]
2 2
4
π΅ππΉ1 =
π΅ππΉ2 =
ππ π
ππ π΅π π₯ π₯ {1 β [ cos π] } 2π΅π 60 ππ
π₯
2π₯
60
π₯ {1 β [
cos
] }
π©πΊπ = 2
2
5
π΅ππΉ2 =
π΅ππΉ2 =
ππ π
ππ π΅π π₯ π₯ {1 β [ cos π] } π΅π 60 ππ
π₯
60
π₯ {1 β [
cos
] }
π©πΊπ =
4.4.3.
Perhitungan Bearing 4 Rumus
1
2
3
π΅ππΉπ =
π΅ππΉπΌ =
Hasil
π π
ππ π΅π π₯ π₯ [1 β cos π] 2 60 ππ
π΅ππΉπ =
π π
ππ π΅π π₯ π₯ [1 + cos π] 2 60 ππ
π΅ππΉπΌ =
π₯
2
60
π₯ [1 β
cos
]
cos
]
π©π·ππΆ = π₯
2
60
π₯ [1 +
π©π·ππ° = πΉππΉ =
1 π
ππ π΅π πΉππΉ = π₯ π₯ [1 β cos π] 2 60 ππ
1 π₯ π₯ [1 β 2 60
cos
]
ππ»π = 2 2
4
π΅ππΉ1 =
π΅ππΉ2 =
ππ π
ππ π΅π π₯ π₯ {1 β [ cos π] } 2π΅π 60 ππ
2π₯
π₯
60
π₯ {1 β [
cos
] }
π©πΊπ = 2
2
5
π΅ππΉ2 =
π΅ππΉ2 =
ππ π
ππ π΅π π₯ π₯ {1 β [ cos π] } π΅π 60 ππ
π₯
60
π₯ {1 β [
π©πΊπ =
19
cos
] }
5. Pompa 5.1.
Buat Sket Mesin
5.2.
Data Mesin Pompa Nama Merk Serial Number Code Temperature Max. Flow Rate Head Power
Centrifugal Pump Lowara 02759 107330130 85OC 30 β 80 ltr/min 20,1 β 12,8 m 0,378 kW Motor Listrik
Nama Tipe Frequency Power Voltage Electric Current Protection
Lowara SM63BG/304 50 Hz 0,61 kW 220 β 240 Ξ atau 380 β 415 Y 2,51 Ξ atau 1,45 Y IPX 5
20
5.3.
Data Bantalan Gelinding
Data : Putaran mesin (rpm) = 2850 rpm Parameter
1
2
3
4
5
Kode Bantalan Diameter pitch Diameter bola Jumlah bola Sudut kontak
Simbol
Bantalan 1
2
-
6202
6202
Pd
25,3 mm
25,3 mm
Bd
5,953 mm
5,953 mm
N
8
8
π
0
0
21
5.3.1.
Perhitungan pada Bearing 1 dan 2 Rumus
1
2
3
Hasil
π π
ππ π΅π π΅ππΉπ = π₯ π₯ [1 β cos π] 2 60 ππ
π΅ππΉπ =
π π
ππ π΅π π΅ππΉπΌ = π₯ π₯ [1 + cos π] 2 60 ππ
π΅ππΉπΌ =
1 π
ππ π΅π πΉππΉ = π₯ π₯ [1 β cos π] 2 60 ππ
πΉππΉ =
π©π·ππΆ =
5
π΅ππΉ1 =
π©π·ππ° =
5.4.1.
1 1440 5,593 π₯ π₯ [1 β cos 0] 2 60 25,3
ππ π
ππ π΅π π₯ π₯ {1 β [ cos π] } 2π΅π 60 ππ
2 25,3 1440 5,953 π΅ππΉ1 = π₯ π₯ {1 β [ cos 0] } 2 π₯ 5,953 60 25,3
π©πΊπ =
2 ππ π
ππ π΅π π΅ππΉ2 = π₯ π₯ {1 β [ cos π] } π΅π 60 ππ
5.4.
8 1440 5,953 π₯ π₯ [1 + cos 0] 2 60 25,3
ππ»π = 2
4
8 1440 5,953 π₯ π₯ [1 β cos 0] 2 60 25,3
π΅ππΉ2 =
2 25,3 1440 5,953 π₯ π₯ {1 β [ cos 0] } 5,953 60 25,3
π©πΊπ =
Data Sudu Impeller Pompa : Putaran mesin (rpm)
= 2850 rpm
Jumlah sudu (Zs)
= 7 buah
Perhitungan Sudu Impeller Berikut merupakan perhitungan pada sudu blower : Rumus
Hasil
ππ π’ππ’ = ππ ππ ππ π’ππ’ = ππ π₯
ππ π’ππ’ = 7 π₯
πππ 60
2850 60
ππππ
π = πππ, π π―π
22
6.
Kompresor
6.1.
Buat Sket Mesin
6.2.
Data Mesin Kompresor Nama Merk Model MFG No. Number of Cylinder Stroke Bore Max. Press Nama Merk Type
Kompresor Torak Multistage SWAN Air-Compressor SVU-201 11131085 2 45 mm 50,8 mm 8 kg/cm2 Motor Listrik Single Phase Two Value Capacitor Asynchronous Motor Famoza YL.90L4
23
6.3.
Data Bantalan
Data : Putaran mesin (rpm) = Parameter
1
2
3
4
5
Kode Bantalan Diameter pitch Diameter bola Jumlah bola Sudut kontak
Simbol
Bantalan 1
2
-
6205
6205
Pd
39.15
39.15
Bd
7.85
7.85
N
13
13
π
0
0
24
3
4
6.3.1.
Perhitungan pada Bearing Rumus
1
2
3
π π
ππ π΅π π΅ππΉπ = π₯ π₯ [1 β cos π] 2 60 ππ
π΅ππΉπ =
π π
ππ π΅π π΅ππΉπΌ = π₯ π₯ [1 + cos π] 2 60 ππ
π΅ππΉπΌ =
1 π
ππ π΅π πΉππΉ = π₯ π₯ [1 β cos π] 2 60 ππ
πΉππΉ =
π΅ππΉ1 =
4
5
Hasil
ππ π
ππ π₯ π₯ {1 2π΅π 60 2 π΅π β [ cos π] } ππ
2 ππ π
ππ π΅π π΅ππΉ2 = π₯ π₯ {1 β [ cos π] } π΅π 60 ππ
13 1400 7,85 π₯ π₯ [1 β cos 0] 2 60 39,15 π©π·ππΆ = πππ, ππ π―π 13 1400 7,85 π₯ π₯ [1 + cos 0] 2 60 39,15 π©π·ππ° = πππ, ππ π―π 1 1400 7,85 π₯ π₯ [1 β cos 0] 2 60 39,15 ππ»π = π, ππ π―π
2 39,15 1400 7,85 π΅ππΉ2 = π₯ π₯ {1 β [ cos 0] } 2 π₯ 7,85 60 39,15
π©πΊπ = ππ, ππ π―π π΅ππΉ2 =
2 39,15 1400 7,85 π₯ π₯ {1 β [ cos 0] } 2 π₯ 7,85 60 39,15
π©πΊπ = πππ, ππ π―π
25
6.4.
Data Belt
Data : Putaran mesin (rpm1, rpm2)
= 1400 rpm
/ 587 rpm
Diameter pulley (Dp1, Dp2)
= 102,81 mm / 245,13 mm
Panjang belt (Bl)
= 1354,5 mm
Atau : Jari-jari (r1, r2)
= 51,41 mm
Jarak antar sumbu (c)
= 379 mm
Persamaan : π = βπ 2 β (π2 β π1 )2 , mm π = β3792 β (122,57 β 51,41 )2 , mm π = 372,26 ππ π
π·1 = π π1 (90) ,mm Ξ± = 10,5 O π1 = 90π + πΌ
26
/ 122,57 mm
π1 = 90π + 10,5 π1 = 100,5O π2 = 90π β πΌ π2 = 90π β 10,5 π2 = 79,5O π
π·1 = π π1 ( 1 ) ,mm 90 100,5 π·1 = π π₯ 51,41 π₯ ( ) 90 π·1 = 180,35 mm
π·2 = 2π π2 (1 β
π2 ) 180
π·2 = 2π π₯ 122,57 π₯ (1 β
79,5 ) 180
π·2 = 429,99 ππ Belt length (Bl)
= 2l + D1 + D2 = 1354,86 mm
6.5.
Data Pulley Putaran mesin 1 (rpm1)
= 1400 rpm.
Putaran mesin 2 (rpm2)
= 587 rpm.
Diameter pulley 1 (Dp1)
= 102,81 mm
Diameter pulley 2 (Dp2)
= 245,13 mm
Panjang Belt (Bl)
= 1354,5 mm
27
6.5.1.
Perhitungan Pulley Berikut perhitungan pada pulley :
Pulley
Rumus
1
π. π·π1 πΉπ1 = π. πππ1 . , π―π π΅π
πΉπ1 = 1 .1400 .
π. π·π2 πΉπ2 = π. πππ2 . , π―π π΅π
πΉπ2 = 1 .587 .
2
Hasil
28
π. 102,81 , π―π 1354,5
πππ = πππ, ππ π―π π . 245,13 , π―π 1354,5
πππ = πππ, ππ π―π