A Study on Structural Safety of the Boom Hoisting Cylinder of a Coal Handling Machine

석탄하역기 붐 호이스팅 실린더의 구조 안전성에 관한 연구

  • Choi, Yong Hoon (Dept. of Creative Engineering System, Pusan Nat'l Univ.) ;
  • Kwak, Hyo Seo (Dept. of Creative Engineering System, Pusan Nat'l Univ.) ;
  • Kim, Chul (Research Institute of Mechanical Technology, Pusan Nat'l Univ.)
  • 최용훈 (부산대학교 창의공학시스템학과) ;
  • 곽효서 (부산대학교 창의공학시스템학과) ;
  • 김철 (부산대학교 기계기술연구원)
  • Received : 2015.09.16
  • Accepted : 2015.10.27
  • Published : 2015.12.01


A coal handling machine is a type of equipment used for loading coal, the main material in a steam power plant, along a conveyer belt from a ship, and is placed after the driving chain bucket. However, studies on the boom hoisting cylinder, which is a hydraulic system used to control the angle of the boom based on loading location, indicate that domestic models are insufficient, and are thereby often substituted with a foreign product. In this study, a technique for analyzing the contact pressure in a thick-walled cylinder was established by comparing the contact pressure, which is calculated theoretically based on the results obtained from FEM simulation, and by checking whether the working oil is leaking from the boom hoisting cylinder using a v-seal. In addition, the driving motion was simulated according to the strokes of the cylinder, and the structural stability was verified under the maximum output conditions.


Supported by : 부산대학교


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