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유압브레이커의 수동 무단 타격력 제어기구 개발에 대한 연구A Study on Manually and Continuously Variable Impact Force Control Device Development for Hydraulic Breakers

Other Titles
A Study on Manually and Continuously Variable Impact Force Control Device Development for Hydraulic Breakers
Authors
강영기장주섭
Issue Date
Dec-2020
Publisher
사단법인 유공압건설기계학회
Keywords
Hydraulic Breaker; Manual Control; Impact Force; Piston Stroke; SimulationX; 유압브레이커; 수동제어; 타격력; 피스톤 행정거리; SimulationX 소프트웨어
Citation
드라이브·컨트롤, v.17, no.4, pp.46 - 53
Journal Title
드라이브·컨트롤
Volume
17
Number
4
Start Page
46
End Page
53
URI
https://scholarworks.bwise.kr/gachon/handle/2020.sw.gachon/79208
ISSN
2671-7972
Abstract
In this paper, the development of a manually and continuously variable impact force control mechanism for hydraulic breakers was studied. Generally, a hydraulic breaker has one or two piston strokes. Hydraulic breakers, which have two strokes, have two valve-switching ports and make short and long piston strokes. The piston stroke valve controls the piston stroke by opening and closing a short stroke-switching port. The short piston stroke mode is used to break soft rock, concrete, or asphalt. This stroke control valve system is not popular for small hydraulic breakers mounted on 1 to 14-ton excavators. To preserve the carrier-like excavator, proper breaking force is needed, and it can be easily controlled by multiple piston stroke control valves. The easiest way to control these breakers is to use several switching ports and valves but they are not easy to install in small hydraulic breakers and are expensive. To use only one switching port and valve, a method can be used to change the open area of the switching port to delay valve switching. This method provides multiple piston strokes.
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