Bagian Gardan Mobil Dan Komponen-Komponennya | Blog TKR
Bagian bagian final drive/Gardan beserta fungsinya:
Final drive terdiri dari dua bagian,yaitu:
1.Final gear yang terdiri dari perkaitan antara drive pinion gear dengan ring gear, yang fungsinya untuk memperbesar momen putar dan merubah arah putaran sebesar 90 derajat.
2.Differentail gear yang terdiri dari perkaitan antara roda gigi- roda gigi pinion gear dengan side gear, yang berfungsi untuk membedakan putaran roda kiri dan kanan saat kendaraan membelok.
KOMPONEN KOMPONEN UNIT FINAL DRIVE/GARDAN
1.Cincin dorong 12. Mur penyetel
2.Roda gigi samping(side gear) 13.Pinion penggerak
3.Roda gigi planet/pinion 14.Cincin (O ring)
4.(pinion gear) 15.Bantalan belakang
5.Tutup bantalan 16.Spaser
6.Pengunci mur penyetel 17.Differential carrier
7.Mur penyetel 18.Bantalan depan
8.Baut 19.Penahan oli
9.Plat pengunci 20.Perapat oli (oil seal)
10. Bak differential 21.Flens penyambung
11.Roda gigi ring (ring gear) 22.Mur pengikat
FUNGSI FINAL DRIVE
1.Membedakan putaran roda kiri dan kanan pada saat kendaraan membelok
2.Mereduksi putaran untuk menghasilkan momen yang besar
3.Merubah arah putaran sebesar 90 derajat terhadap putaran asal.
CARA KERJA FINAL DRIVE
1.Pada saat jalan lurus
Pada saat kendaraan berjalan lurus pada jalan datar tahanan gelinding (rolling resistance) pada kedua roda penggerak (drive gear) relatif sama.
Bila tahanan kedua poros axle belakang sama (A dan B) Pinion tidak berputar sendiri tetapi ring gear, differential case dan poros pinion berputar bersama dalam satu unit.Dengan demikian, pinion hanya berfungsi untuk menghubungkan side gear bagian kiri dan kanan, sehingga menyebabkan kedua drive wheel berputar pada Rpm yang sama.
2. Pada saat membelok
Pada saat kendaraanmembelok kekiri, tahanan roda kiri lebih besar dari pada roda kanan.Apabila differensial case berputar bersama ring gear maka pinion akan berputar pada porosnya dan juga bergerak mengelilingi side gear seblah kiri,sehingga putaran side gear sebelaelah kanan bertambah,yang mana jumlah putaran side gear satunya adalah duakali putaran ring gear.
Hal ini dapat dikatakan bahwa putaran rata-rata kedua roda gigi adalah sebanding dengan putaran ring gear.
PENGERTIAN BACKLASH,PRELOAD,RUN OUT
Backlash adalah kekocakan atau kerenggangan atau jarak bebas perkaitan antara 2 roda gigi.
Pre Load adalah beban awal yang di tanggung oleh unit penggerak sebelum menggerakan unit atau komponen lain.
Run Out atau keolengan yaitu besarnya simpangan pada saat komponen diputar.
FUNGSI MINYAK PELUMAS PADA FINAL DRIVE
1. Sebagai pelumas
2.Sebagai penyerap tegangan
3.Sebagai peredam suara
AKIBAT YANG TIMBUL APABILA MINYAK PELUMAS PADA FINAL DRIVE HABIS
Dapat mengakibatkan bagian-bagian yang bergerak lebih cepat timbul panas dan mengalami keausan, Timbul bunyi/suara bisik yang sangat mengganggu
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