Aziz, Dzakwan Shidqul (2023) Perancangan Sistem Hidrolik Alat Pelepas Velg Ban Pada RTG Crane Kapasitas 10 Ton (Studi Kasus Di PT. BIMA - Surabaya). Other thesis, Institut Teknologi Sepuluh Nopember.
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Abstract
Penulis melakukan penelitian proyek akhir di PT. Berkah Industri Mesin Angkat (PT. BIMA). Perusahaan tersebut diharapkan dapat menangani perawatan dan pemeliharaan alat pelabuhan milik PT. Pelabuhan Indonesia (Persero). Namun, selama pelaksanaan magang industri serta penelitian proyek akhir di perusahaan tersebut penulis menemukan penanganan pemeliharaan dan perawatan penggantian ban khususnya untuk RTG (rubber tyred gantry) crane Kalmar E-One² di Terminal Nilam, Tanjung Perak Surabaya kurang efektif dan berisiko bagi keselamatan para karyawan perusahaan tersebut. Sampai saat ini dalam menangani penggantian ban crane, perusahaan masih menggunakan metode manual yaitu melepas velg dari ban menggunakan dongkrak hidrolik manual (jack) sehingga membutuhkan waktu yang lama, sumber daya yang banyak dan juga berisiko. Dengan sistem hidrolik diharapkan keuntungan lebih baik dibandingkan sistem mekanik, antara lain yaitu pemindahan gaya dan daya yang lebih besar. Oleh karena itu dalam proyek akhir ini penulis bertujuan mengangkat masalah yang terjadi pada saat melaksanakan magang industri tersebut. Topik proyek akhir ini, merupakan rancangan sistem hidrolik untuk penggerak alat pelepas velg ban dengan didukung komponen elemen mesin, desain sirkuit, hydraulic power unit, silinder hidrolik, dan elektrikal yang diperlukan. Dalam pelaksanaan penelitian proyek akhir ini, penulis melaksanakan studi literatur, observasi lapangan, pendesainan gambar teknik serta sirkuit hidrolik pemilihan komponen-komponen sistem hidrolik yang sesuai. Setelah itu dilakukan simulasi dengan menggunakan software Festo FluidSIM. Dalam perancangan sistem hidrolik untuk penggerak alat pelepas velg ban pada RTG (rubber tyred gantry) crane dengan kapasitas 10 ton. Posisi silinder hidrolik terletak diatas velg ban dengan gerakan extend vertikal kebawah, menggunakan silinder hidrolik dengan diameter rod dan piston berturut-turut sebesar 56 mm dan 100 mm dengan panjang stroke perancangan sebesar 400 mm, tekanan inlet sebesar 141,8 bar, kapasitas inlet 14,1 l/min, sehingga mampu menggerakan silinder hidrolik untuk mencapai full stroke dengan waktu 13,3 detik, dengan tipe 4/3 way valve hand lever with spring centered mid position pump re-circulating, daya hidrolik pompa 3,06 kW, menggunakan pompa hidrolik dengan tekanan kerja yang disesuaikan sebesar 160 bar, volumetric displacement sebesar 22,5 cm³/rev, putaran maksimal 3000 rpm, motor listrik dengan rated output 4 kW atau 5,5 HP. Pada simulasi diperoleh sebesar 141,52 bar terdapat error 0,19 %, kecepatan silinder hidrolik sebesar 0,028 m/s dan mendekati 0,03 m/s yang sudah sesuai dengan kebutuhan.
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The author conducted research on the final project at PT. Berkah Industri Mesin Angkat (PT. BIMA). The company is expected to be able to handle the care and maintenance of port equipment owned by PT. Pelabuhan Indonesia (Persero). However, during the implementation of industrial internships and final project research at the company, the authors found that handling maintenance and tire replacement, especially for the Kalmar E-One² RTG (rubber tyred gantry) crane at Nilam Terminal, Tanjung Perak Surabaya, was less effective and risky for the safety of the company's employees. the. Until now, in handling crane tire replacement, the company still uses the manual method, namely removing the wheel from the tire using a manual hydraulic jack, which requires a long time, a lot of resources and is also risky.
With a hydraulic system, it is expected to have better advantages compared to a mechanical system, including greater transfer of force and power. Therefore in this final project the author aims to raise the problems that occur when carrying out the industrial internship. The topic of this final project is the design of a hydraulic system for driving a tire wheel release device supported by machine elements, circuit design, hydraulic power units, hydraulic cylinders, and the necessary electrical components. In carrying out this final research project, the authors carry out literature studies, field observations, design engineering drawings and hydraulic circuits and select the appropriate hydraulic system components. After that, a simulation was carried out using the Festo FluidSIM software.In designing a hydraulic system for driving a tire wheel removal tool on an RTG (rubber tyred gantry) crane with a capacity of 10 tons. The position of the hydraulic cylinder is located above the tire wheel with a vertical downward movement, using a hydraulic cylinder with rod and piston diameters of 56 mm and 100 mm respectively with a design stroke length of 400 mm, inlet pressure of 141.8 bar, inlet capacity of 14, 1 l/min, so as to be able to move the hydraulic cylinder to achieve full stroke with a time of 13.3 seconds, with a 4/3 way valve type hand lever with spring centered mid position pump re-circulating, the pump hydraulic power is 3.06 kW, using a pump hydraulic with adjustable working pressure of 160 bar, volumetric displacement of 22.5 cm³/rev, maximum rotation of 3000 rpm, electric motor with rated output of 4 kW or 5.5 HP. In the simulation, it is obtained that 141.52 bar has an error of 0.19%, the speed of the hydraulic cylinder is 0.028 m/s and is close to 0.03 m/s which is in accordance with the requirements.
| Item Type: | Thesis (Other) |
|---|---|
| Uncontrolled Keywords: | Rubber Tyred Gantry Crane, Velg, Sistem Hidrolik, Wheels, Hydraulic Systems |
| Subjects: | T Technology > TJ Mechanical engineering and machinery > TJ1363 Cranes, derricks, etc. T Technology > TJ Mechanical engineering and machinery > TJ230 Machine design T Technology > TJ Mechanical engineering and machinery > TJ840.A2+ hydraulic machinery |
| Divisions: | Faculty of Vocational > Mechanical Industrial Engineering |
| Depositing User: | Dzakwan Shidqul Aziz |
| Date Deposited: | 03 Aug 2023 04:58 |
| Last Modified: | 03 Aug 2023 04:58 |
| URI: | http://repository.its.ac.id/id/eprint/101584 |
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