Journal of Drive and Control (드라이브 ㆍ 컨트롤)

The Korean Society for Fluid Power and Construction Equipment (유공압건설기계학회)
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A Study on the Automatic Impact Force Control Mechanism Design for the Hydraulic

유압 브레이커의 자동타격력 제어기구 설계에 관한 연구

  • Kang, Young Ky (Department of Mechanical Engineering, Gachon University) ;
  • Jang, Joo Sup (Department of Mechanical Engineering, Gachon University)
  • Received : 2022.06.13
  • Accepted : 2022.08.17
  • Published : 2022.09.01
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Abstract

In this paper, the design of automatic impact force control mechanism of hydraulic breaker was studied. The control mechanism uses the change of piston upper chamber pressure, when the hydraulic breaker impacts various strength rock. The piston stroke is controlled by rock strength sensing valve, piston stroke switching valve, and piston control valve. It is imperative to denote the area of each valve section, the spring constant of the spring. It provides convenience to users by automatically adjusting the appropriate striking force, according to the strength of the rock. Additionally, by increasing work productivity, it can contribute to reducing greenhouse gas emissions due to fuel efficiency reduction.

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References

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