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2 2 STEP AUTO STROKE TYPE HYDRAULIC BREAKER
The present invention relates to a hydraulic two-stroke hydraulic breaker. According to the present invention, a main valve is coupled to the outside of a cylinder, and a pilot valve and a stroke valve are connected to the main valve, so that maintenance of the main valve is easy. In addition, it is possible to respond clearly and quickly to a change signal when a stroke is changed. A fixed groove is formed on an inner wall of the cylinder, so it is possible to block irregular signals generated during a lifting operation of a piston. In addition, a structure of a communication hole of a housing is improved so that the communication hole can be selectively opened and closed according to convenience of an operator without a bolt fastening operation. The hydraulic two-stroke hydraulic breaker of the present invention comprises: the main valve (200); the stroke valve (600); the pilot valve (700); the housing (50); and a plurality of grooves (115).
본 발명은 메인밸브를 실린더의 외측에 결합시키고 상기 메인밸브에 파일럿밸브와 스트로크밸브를 연결하여 메인밸브의 유지 보수가 용이하도록 하고 스트로크 변경시 변경 신호에 명확하고 신속하게 응답할 수 있도록 하고, 실린더의 내벽에 고정식 그루브를 형성하여 피스톤의 승강동작시 발생되는 불규칙 신호를 차단할 수 있도록 함과 아울러, 하우징의 연통공을 볼트 체결작업없이 작업자의 편의에 따라 선택적으로 개폐시킬 수 있도록 그 구조가 개선된 유압식 2단 스트로크 유압브레이커에 관한 것이다.
2 2 STEP AUTO STROKE TYPE HYDRAULIC BREAKER
The present invention relates to a hydraulic two-stroke hydraulic breaker. According to the present invention, a main valve is coupled to the outside of a cylinder, and a pilot valve and a stroke valve are connected to the main valve, so that maintenance of the main valve is easy. In addition, it is possible to respond clearly and quickly to a change signal when a stroke is changed. A fixed groove is formed on an inner wall of the cylinder, so it is possible to block irregular signals generated during a lifting operation of a piston. In addition, a structure of a communication hole of a housing is improved so that the communication hole can be selectively opened and closed according to convenience of an operator without a bolt fastening operation. The hydraulic two-stroke hydraulic breaker of the present invention comprises: the main valve (200); the stroke valve (600); the pilot valve (700); the housing (50); and a plurality of grooves (115).
본 발명은 메인밸브를 실린더의 외측에 결합시키고 상기 메인밸브에 파일럿밸브와 스트로크밸브를 연결하여 메인밸브의 유지 보수가 용이하도록 하고 스트로크 변경시 변경 신호에 명확하고 신속하게 응답할 수 있도록 하고, 실린더의 내벽에 고정식 그루브를 형성하여 피스톤의 승강동작시 발생되는 불규칙 신호를 차단할 수 있도록 함과 아울러, 하우징의 연통공을 볼트 체결작업없이 작업자의 편의에 따라 선택적으로 개폐시킬 수 있도록 그 구조가 개선된 유압식 2단 스트로크 유압브레이커에 관한 것이다.
2 2 STEP AUTO STROKE TYPE HYDRAULIC BREAKER
유압식 2단 스트로크 유압브레이커
PARK CHANG JIN (author)
2021-09-09
Patent
Electronic Resource
Korean
4 4 step variable intelligent auto stroke hydraulic breaker
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