KR970044028A - A valve system for hydraulic breaker - Google Patents

A valve system for hydraulic breaker Download PDF

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Publication number
KR970044028A
KR970044028A KR1019950069263A KR19950069263A KR970044028A KR 970044028 A KR970044028 A KR 970044028A KR 1019950069263 A KR1019950069263 A KR 1019950069263A KR 19950069263 A KR19950069263 A KR 19950069263A KR 970044028 A KR970044028 A KR 970044028A
Authority
KR
South Korea
Prior art keywords
valve
chamber
cylinder
valve control
hydraulic
Prior art date
Application number
KR1019950069263A
Other languages
Korean (ko)
Other versions
KR0178906B1 (en
Inventor
임종혁
Original Assignee
석진철
대우중공업 주식회사
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 석진철, 대우중공업 주식회사 filed Critical 석진철
Priority to KR1019950069263A priority Critical patent/KR0178906B1/en
Publication of KR970044028A publication Critical patent/KR970044028A/en
Application granted granted Critical
Publication of KR0178906B1 publication Critical patent/KR0178906B1/en

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Classifications

    • E—FIXED CONSTRUCTIONS
    • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02F—DREDGING; SOIL-SHIFTING
    • E02F9/00—Component parts of dredgers or soil-shifting machines, not restricted to one of the kinds covered by groups E02F3/00 - E02F7/00
    • E02F9/20—Drives; Control devices
    • E02F9/22—Hydraulic or pneumatic drives
    • E02F9/2264—Arrangements or adaptations of elements for hydraulic drives
    • E02F9/2267—Valves or distributors
    • E—FIXED CONSTRUCTIONS
    • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02F—DREDGING; SOIL-SHIFTING
    • E02F3/00—Dredgers; Soil-shifting machines
    • E02F3/04—Dredgers; Soil-shifting machines mechanically-driven
    • E02F3/96—Dredgers; Soil-shifting machines mechanically-driven with arrangements for alternate or simultaneous use of different digging elements
    • E02F3/966—Dredgers; Soil-shifting machines mechanically-driven with arrangements for alternate or simultaneous use of different digging elements of hammer-type tools
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
    • F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
    • F15B13/00—Details of servomotor systems ; Valves for servomotor systems
    • F15B13/02—Fluid distribution or supply devices characterised by their adaptation to the control of servomotors
    • F15B13/04—Fluid distribution or supply devices characterised by their adaptation to the control of servomotors for use with a single servomotor
    • F15B13/0401—Valve members; Fluid interconnections therefor
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
    • F16K11/00—Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves
    • F16K11/02—Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves with all movable sealing faces moving as one unit
    • F16K11/06—Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves with all movable sealing faces moving as one unit comprising only sliding valves, i.e. sliding closure elements
    • F16K11/065—Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves with all movable sealing faces moving as one unit comprising only sliding valves, i.e. sliding closure elements with linearly sliding closure members
    • F16K11/07—Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves with all movable sealing faces moving as one unit comprising only sliding valves, i.e. sliding closure elements with linearly sliding closure members with cylindrical slides

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  • Engineering & Computer Science (AREA)
  • Mining & Mineral Resources (AREA)
  • Civil Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Structural Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Percussive Tools And Related Accessories (AREA)

Abstract

본 발명은 유아브레이커의 작동을 제어하는 유압제어밸브장치에 관한 것으로, 외경이 서로 다른 3개의 유동 접촉면을 갖는 밸브스푸울(18)의 원주면에 환형의 밸브제어실(50)이 형성되고, 이 밸브제어실(50)에 밸브스푸울(18)의 내부에 형성된 원통공간(35)과 연통시키는 밸브제어유로(51)가 형성되며, 상기 밸브제어실(50)이 밸브스푸울(18)에 형성된 수압면(21)의 아래쪽에 위치하게 함과 더불어, 밸브스푸울(18)이 상승되었을 때 이 밸브제어실(50)이 밸브절환유로(16)와 연통되게 한 구조로 이루어져, 피스톤이 상승동작에서부터 하강동작으로 빠르게 전환하여도 밸브스푸울(18)은 상기 밸브제어실(50)과 밸브제어유로(51)를 통해 밸브전환실(30)로 유입되는 고압의 압력에 의해 계속하여 상승된 상태를 유지하게 되어, 피스톤을 하강시키는 압유가 공급되는 실린더 상부체임버(10)에 계속하여 고압의 압유가 공급되게 할 수 있게 함으로써, 피스톤이 빠른 속도로 하강할 수 있게 한 것이다.The present invention relates to a hydraulic control valve device for controlling the operation of the infant breaker, the annular valve control chamber 50 is formed on the circumferential surface of the valve spring 18 having three flow contact surfaces having different outer diameters, A valve control passage 51 is formed in the valve control chamber 50 to communicate with the cylindrical space 35 formed inside the valve spring 18, and the valve control chamber 50 has a hydraulic pressure formed in the valve spring 18. The valve control chamber 50 has a structure in which the valve control chamber 50 is in communication with the valve switching passage 16 when the valve spring 18 is raised while being positioned below the surface 21. The valve spring 18 is continuously maintained by the high pressure of the high pressure flowing into the valve switching chamber 30 through the valve control chamber 50 and the valve control passage 51 even when the switch is switched to the operation quickly. Cylinder with hydraulic oil for lowering piston By making it to be continued by supplying pressure oil in the high pressure in the upper chamber 10, to which the piston is able to fall rapidly.

Description

유압브레이커용 유압제어밸브장치(A valve system for hydraulic breaker)A valve system for hydraulic breaker

본 내용은 요부공개 건이므로 전문내용을 수록하지 않았음Since this is an open matter, no full text was included.

제1도는 본 발명에 따른 유압브레이커 밸브장치가 유압브레이커 본체와 일체로 구성된 상태를 도시한 단면도로서, 그 작동초기의 상태를 나타낸 것이다.1 is a cross-sectional view showing a state in which the hydraulic breaker valve device according to the present invention is configured integrally with the hydraulic breaker main body, and shows the state of its initial operation.

제3도는 본 발명에 다른 밸브장치를 구성하는 밸브스푸울의 단면도.3 is a cross-sectional view of a valve spring constituting a valve device according to the present invention.

제6도는 종래의 유압브레이커 밸브장치에 대한 구성을 나타내는 단면도.6 is a cross-sectional view showing a configuration of a conventional hydraulic breaker valve device.

Claims (2)

실린더(1) 속에 피스톤(2)이 상하 자유로이 이동할 수 있게 설치되고, 상기 피스톤(2)의 상부와 하부에 각각 실린더 상부체임버(10)와 실린더 하부체임버(11)가 마련됨과 더불어 피스톤 상단에 고압개스가 저장된 개스압축실(38)이 구비되고, 상기 실린더 상부체임버(10)와 실린더 하부체임버(11)에 밸브에 의해 고압의 압유 또는 저압의 압유가 선택적으로 공급됨에 따라 발생되는 압력차와 상기 개스압축실(38)이 개스압력에 의해 피스톤(2)이 상하이동하게 되어 있으며, 피스톤의 승강 작동에 따라 상기 실린더 상부체임버(10)와 실린더 하부체임버(11)를 연통시키는 밸브절환유로(16)에 오리피스(33)가 설치되어 있는 한편, 상기 밸브(13)의 스푸울(18)이 3개의 외경이 서로 다른 유동접촉면을 가지면서 그 내부가 빈 원통공간(35)부로 형성되어 있고, 상기 스푸울(18)이 상승되었을 때 실린더측 상부체임버(10)에 압유를 공급하는 유로(12)와 연통되게 한 밸브급유구(40)가 구비되며, 이 밸브스푸울(18)이 승하강함에 따라 상기밸브급유구(40)가 실린더 상부체임버(10)와 밸브의 고압유로(14)를 선택적으로 연통시키도록 된 유압브레이커의 유압제어밸브장치에 있어서, 상기 밸브스푸울(18)에 환형의 밸브제어실(50)이 형성되고, 이 밸브제어실(50)이 밸브스푸울(18)의 내부에 형성된 원통공간(35)과 연통시키는 밸브제어유로(51)가 형성되며, 상기 밸브제어실(50)이 밸브스푸울(18)에 형성된 수압면(21)의 아래쪽에 위치하게 함과 더불어, 밸브스푸울(18)이 상승되었을 때 이 밸브제어실(50)이 밸브절환유로(16)와 연통되게 한 것을 특징으로 하는 유압브레이커 유압제어밸브장치.The piston (2) is installed in the cylinder (1) to be able to move freely up and down, the upper cylinder 10 and the lower cylinder chamber (11) is provided on the upper and lower portions of the piston (2), and the high pressure at the top of the piston A gas compression chamber 38 having a gas stored therein is provided, and a pressure difference generated by selectively supplying high pressure oil or low pressure pressure oil by a valve to the cylinder upper chamber 10 and the cylinder lower chamber 11. In the gas compression chamber 38, the piston 2 moves up and down due to the gas pressure, and the valve switching passage 16 communicates the upper cylinder chamber 10 and the lower cylinder chamber 11 with the lifting and lowering operation of the piston. Orifice (33) is provided, while the sprue (18) of the valve (13) is formed with an empty cylindrical space (35) inside the three outer diameters having different flow contact surface, Spoul (18) A valve oil inlet 40 is provided to communicate with a flow passage 12 for supplying pressure oil to the cylinder-side upper chamber 10 when raised, and as the valve spring 18 moves up and down, the valve oil inlet ( In the hydraulic control valve device of the hydraulic breaker 40 is configured to selectively communicate the cylinder upper chamber 10 and the high-pressure flow path 14 of the valve, the annular valve control chamber 50 is connected to the valve spring 18. And a valve control flow path 51 through which the valve control chamber 50 communicates with the cylindrical space 35 formed inside the valve spring 18, and the valve control chamber 50 is a valve spring 18. The hydraulic breaker, characterized in that the valve control chamber 50 is in communication with the valve switching passage 16 when the valve spring 18 is raised and positioned below the hydraulic pressure surface 21 formed in the Hydraulic control valve device. 제1항에 있어서, 상기 밸브제어유로(51)의 통로면적이 밸브절환유로(16)에 형성된 오리피스(33)의 면적보다 작게 형성된 것을 특징으로 하는 유압브레이커 유압제어밸브장치.The hydraulic breaker hydraulic control valve apparatus according to claim 1, wherein a passage area of the valve control passage (51) is smaller than an area of an orifice (33) formed in the valve switching passage (16).
KR1019950069263A 1995-12-30 1995-12-30 Valve system for hydraulic breaker KR0178906B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
KR1019950069263A KR0178906B1 (en) 1995-12-30 1995-12-30 Valve system for hydraulic breaker

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR1019950069263A KR0178906B1 (en) 1995-12-30 1995-12-30 Valve system for hydraulic breaker

Publications (2)

Publication Number Publication Date
KR970044028A true KR970044028A (en) 1997-07-26
KR0178906B1 KR0178906B1 (en) 1999-02-18

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Family Applications (1)

Application Number Title Priority Date Filing Date
KR1019950069263A KR0178906B1 (en) 1995-12-30 1995-12-30 Valve system for hydraulic breaker

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100891189B1 (en) * 2007-02-22 2009-04-06 정영재 Breaker valve device
KR102004198B1 (en) 2018-10-15 2019-10-01 이일재 Hydraulic valve and hydraulic percussion deivice

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101314299B1 (en) * 2012-12-10 2013-10-02 주식회사 성한 디앤티 Fluid pressure control circuit for a drilling machine and drilling machine using it
KR102385104B1 (en) 2021-11-03 2022-04-11 신승호 Valve for hydraulic breaker that minimizes dimensional change due to temperature rise of hydraulic fluid of hydraulic breaker
KR102458518B1 (en) 2022-04-05 2022-10-25 신승호 Front cover for wear-resistant hydraulic breakers

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100891189B1 (en) * 2007-02-22 2009-04-06 정영재 Breaker valve device
KR102004198B1 (en) 2018-10-15 2019-10-01 이일재 Hydraulic valve and hydraulic percussion deivice

Also Published As

Publication number Publication date
KR0178906B1 (en) 1999-02-18

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