KR960006735B1 - Oil pressure breaker - Google Patents

Oil pressure breaker Download PDF

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Publication number
KR960006735B1
KR960006735B1 KR1019920022958A KR920022958A KR960006735B1 KR 960006735 B1 KR960006735 B1 KR 960006735B1 KR 1019920022958 A KR1019920022958 A KR 1019920022958A KR 920022958 A KR920022958 A KR 920022958A KR 960006735 B1 KR960006735 B1 KR 960006735B1
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South Korea
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valve
head
piston
space
inlet
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KR1019920022958A
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Korean (ko)
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KR940015316A (en
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민극기
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주식회사동명중장비
민극기
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Priority to KR1019920022958A priority Critical patent/KR960006735B1/en
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    • EFIXED CONSTRUCTIONS
    • E02HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02FDREDGING; SOIL-SHIFTING
    • E02F3/00Dredgers; Soil-shifting machines
    • E02F3/04Dredgers; Soil-shifting machines mechanically-driven
    • E02F3/28Dredgers; Soil-shifting machines mechanically-driven with digging tools mounted on a dipper- or bucket-arm, i.e. there is either one arm or a pair of arms, e.g. dippers, buckets
    • E02F3/36Component parts

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

Abstract

The hydraulic breaker includes a piston with a head in the middle and climbing units which are positioned above and under the head respectively; and a cylinder into which the piston is inserted. Each of spacial units where the fluid works, is formed at upper and lower portions of the head and climbing units respectively, and a main valve with a passage is installed within a valve climbing unit between an inlet and an outlet.

Description

유압 브레이커Hydraulic breaker

제1도는 본 발명의 일부 절개 사시도.1 is a partially cutaway perspective view of the present invention.

제2도는 a, b, c, d는 본 발명의 작동상태 단면도.2 is a, b, c, d is a cross-sectional view of the operating state of the present invention.

* 도면의 주요부분에 대한 부호의 설명* Explanation of symbols for main parts of the drawings

1 : 실린더 2 : 압축 탱크1: cylinder 2: compression tank

3 : 치즐 4 : 피스톤3: chisel 4: piston

5 : 헤드부 6,7 : 승강부5: head part 6,7: lifting part

8 : 압축부 9 : 타격부8 compression unit 9 hitting unit

10 : 매인 밸브 11 : 벨브헤드10: main valve 11: valve head

12 : 협소부 13 : 유통로12: narrow part 13: distribution channel

14 : 유입구 15 : 유출구14 inlet 15 outlet

16 : 밸브 승강부 17,18 : 유입로16: valve lift 17, 18: inflow path

19, 20, 21, 22 : 유로 23 : 플런저19, 20, 21, 22: Euro 23: Plunger

(C1)(C2)(C3)(C4) : 공간부 (V1)(V2) : 밸브공간부(C1) (C2) (C3) (C4): Space part (V1) (V2): Valve space part

본 발명은 다단으로 형성된 피스톤에 유압이 단계적으로 작용하게 하여 유압이 작용하는 면적을 배가시킴으로서 피스톤의 압축력을 증대시켜 강력한 파괴력을 얻을 수 있게 한 유압 브레이커에 관한 것이다.The present invention relates to a hydraulic breaker that makes it possible to obtain a powerful breaking force by increasing the compressive force of the piston by doubling the area in which the hydraulic pressure acts on the piston formed in multiple stages.

일반적으로 유압 브레이커는 유압에 의하여 피스톤을 상승시켜 압력탱크내의 질소가스를 압축시킨 후 압축된 질소가스를 다시 팽창시키는 작동을 연속적으로 반복함으로서 파괴력을 얻을 수 있도록 구성되어 있다.In general, the hydraulic breaker is configured to obtain the breaking force by continuously repeating the operation of raising the piston by the hydraulic pressure to compress the nitrogen gas in the pressure tank and expand the compressed nitrogen gas again.

종래의 유압브레이커는 1단 피스톤 방식과 2단 피스톤 방식이 사용되고 있는데 1단 피스톤 방식은 유압이 작용하는 피스톤 헤드부가 1단으로 형성되어 있어 유압이 작용하는 면적이 좁기 때문에 층분한 압축력을 얻을 수 없으며 피스톤 하강시 발생하는 파괴력도 미약하였으며, 1단 피스톤 방식을 2단으로 조합시키고 유입구와 배출구를 형성하여 유압조절밸브인 메인 밸브를 각단마다 사용할 경우 반복 작동중 각각 설치된 밸브의 작동 포인트가 정확하게 일치되지 않아 각단에서의 압축력이 상쇄됨으로서 파괴력이 감소하게되는 등의 문제점이 있다.Conventional hydraulic breakers are used in the first stage piston method and the second stage piston method. In the first stage piston method, since the piston head portion acts as the hydraulic pressure is formed in the first stage, the compressed hydraulic force cannot be obtained due to the narrow hydraulic area. The breaking force generated when the piston descends was also weak. When the main valve, which is a hydraulic control valve, was used at each stage by combining the first stage piston system with two stages and forming the inlet and outlet ports, the operating points of the valves installed during the repeated operation were not exactly matched. As a result, the compressive force at each end is canceled out such that the breaking force is reduced.

본 발명은 이와 같은 점을 감안하여 중간에 헤드부가 형성되고 헤드부의 상하부에 승강부가 형성되며 상부승강부에 압축부가 단이 지게 형성되고 하부승강부에는 타격부가 단이 지게 형성된 피스톤을 실린더내에 삽입 설치하여 헤드부의 상하부와 승강부 상하부에 유압이 작용하는 공간부가 각각 형성되도록 하고, 하나의 메인밸브가 각 공간부에 유체를 동시에 공급, 배출시켜줄 수 있게 함으로서 유압이 작용하는 면적을 배가시키면서도 유압 작동 포인트의 불일치로 인한 압축력의 상쇄작용을 방치할 수 있어 높은 파괴력을 얻을 수 있으며 구조가 간단하여 조립이 용이할 뿐아니라 하나의 메인밸브에 의해 유체가 공간부에 공급, 배출되기 때문에 유압이 원활하게 작용하고 피스톤의 왕복 연속작동이 균일하게 이루어져 유압 브래이커의 타격수를 일정하게 유지시킬 수 있는 것으로 첨부 도면에 의거 상세히 설명하면 다음과 같다.In view of the above, the present invention has a head portion formed in the middle, a lifting portion is formed in the upper and lower portions of the head portion, and a compression portion is formed in the upper elevating portion so that the lowering portion is provided with a piston having the striking portion in the lower elevating portion. The upper and lower parts of the head portion and the upper and lower portions of the elevating portion are formed so that the space for hydraulic pressure acts respectively, and one main valve can supply and discharge the fluid to each space at the same time, thereby doubling the area where the hydraulic pressure acts while operating the hydraulic points. It is possible to negate the compression force due to the mismatch of the parts, so that high breaking force can be obtained, and the structure is simple, and it is easy to assemble. And the reciprocating continuous operation of the piston is made uniform to reduce the number of blows of the hydraulic breaker. When described in detail based on the accompanying drawings that can be kept constant as follows.

중간에 헤드부(5)가 형성되고 헤드부(5)의 상.하부에 승강부(6)(7)가 형성되며 상부승강부(6)에 압축부(8)가 단이 지게 형성되고 하부승강부(7)에는 타격부(9)가 단이지게 형성된 피스톤(4)올 실린더(1)내에 삽입설치하여 헤드부(5) 상하부와 승강부(6)(7)의 상하부에 유압이 작용하는 공간부(C3)(C2)(C4)(C1)를 각각 형성하고, 유입구(14)와 유출구(15)사이의 밸브 승강부(16)에 유통로(13)가 형성된 메인밸브(10)를 내설하되 메인밸브(10)의 상단부에 플랜지형의 밸브 헤드(11)를 형성하고 하부에 협소부(12)를 형성하며, 유입구(14)에 연결된 유입로(17)(18)를 공간부(C1)(C2)에 각각 연결시키고 공간부(C4)의 상부에 연결된 유로(19)(20)의 상부에 연결된 유로(19)(20)중 (19)는 유입구(14)에 연결하며 (20)에 플런저(23)를 설치하여 플런저(23)가 밸브헤드(11)에 닿도록 하고, 공간부(23) 상부에 유출구 (15)와 연결된 유로(21)를 형성하며 공간부(C3) 하부의 유로(22)를 밸브헤드(11) 하부의 밸브 공간부(V1)(V2)에 연결되도록 형성하여서 된 것이다.The head part 5 is formed in the middle, and elevating parts 6 and 7 are formed at the upper and lower parts of the head part 5, and the compression part 8 is formed at the upper lifting part 6 so that the stage is formed in the lower part. The lifting part 7 is inserted into the cylinder 1 of the piston 4 having the striking part 9 formed thereon so that hydraulic pressure acts on the upper and lower parts of the head part 5 and the upper and lower parts of the lifting parts 6 and 7. The main valve 10 having spaces C3, C2, C4 and C1, respectively, and having a flow passage 13 formed at the valve lift 16 between the inlet 14 and the outlet 15, It is internally formed, but the flanged valve head 11 is formed at the upper end of the main valve 10, and the narrow part 12 is formed at the lower part, and the inflow paths 17 and 18 connected to the inlet 14 are spaced ( 19 of the flow passages 19 and 20 connected to the upper portions of the flow passages 19 and 20 connected to C1 and C2, respectively, and connected to the upper portion of the space portion C4, are connected to the inlet 14 (20). ) The plunger 23 so that the plunger 23 is in contact with the valve head 11, the upper part of the space 23 Forming an outlet port 15 and the passage 21 and connected to the hayeoseo formed to connect the space portion (C3) of the lower passage 22 to the valve head 11 the lower valve space portion (V1) (V2).

이와 같이 된 본 발명은 유압에 의하여 피스톤 상승행정과 메인밸브 상승행정, 타격행정, 메인밸브 하강행정이 차례로 연속 반복하여 이루어지게 되어 피스톤(4) 상승시 압축탱크(2)의 질소가스가 압축되고 압축된 질소가스가 팽창되어 피스톤(4)이 하강하면서 치즐(3)올 때리게 되는 것으로 플런저(23)에 의해 눌려진 메인밸브(l0)가 밸브승강부(16)의 하단에 밀착된 상태에서 유입구(14)를 통해 유체가 유입되면 피스톤 상승행정이 이루어지게 된다. 유입구(14)로 유입된 유체는 메인밸브(10) 하부의 협소부(12)를 거쳐 유입로(17)(18)와 연결된 공간부(C1)(C2)에 유입되고 피스톤(4)이 상승하게 되며, 이때 상부 승강부(6) 상단의 공간부(C3)에 있던 유체는 피스톤(4)이 상승함에 따라 밀려나가 유로(20)에서 플런저(23)를 눌러주고 유로(19)를 통해 유입구(14)로 유입되는 유체와 함깨 공간부(C1)(C2)로 유입되며 헤드부(5) 상단의 공간부(C3)에 있던 유체는 유출구(15)로 유출되고 피스톤(4)이 상승함에 따라 압축부(8)가 압축탱크(2)내에 충전된 질소가스를 압축하게 되는 것이다.According to the present invention, the piston ascending stroke, the main valve ascending stroke, the striking stroke, and the main valve descending stroke are successively repeated in order by hydraulic pressure. Inlet 14 in the state in which the main valve l0 pressed by the plunger 23 is in close contact with the lower end of the valve elevating portion 16 as the nitrogen gas is expanded and the piston 4 descends and hits the chisel 3. When the fluid flows through the piston rise stroke is made. The fluid flowing into the inlet 14 flows into the space C1 and C2 connected to the inflow passages 17 and 18 via the narrow portion 12 below the main valve 10 and the piston 4 rises. At this time, the fluid in the space (C3) of the top of the upper elevating portion (6) is pushed out as the piston (4) rises to press the plunger 23 in the flow path 20 and inlet through the flow path (19) In addition to the fluid flowing into the (14) and into the space (C1) (C2) and the fluid in the space (C3) of the top of the head portion 5 is discharged to the outlet 15 and the piston (4) is raised Accordingly, the compression unit 8 is to compress the nitrogen gas filled in the compression tank (2).

이렇게 상승하는 피스톤(4)의 헤드부(5)가 유로(22)를 지나게 되면 공간부(C3)와 밸브공간(V1)(V2)가 유로(22)를 통해 연결되어 공간부(C2)로 유입된 유체가 유로(22)를 거쳐 밸브공간부(V1)에 유입되고 밸브헤드(11)에 유압이 가해져 메인밸브(10)가 플런저(23)와 함깨 상승하게 되는 메인 밸브(10)가 상승하여 유입로(17)(18)와 유통로(13)가 연결되면 유입구(14)에서 유입된 유체가 협소부(12)를 거쳐 밸브 공간부(V2)와 공간부(C2)를 통해 유통로(13)를 유로(19)를 통해 유입된 유체는 상부 승강부(6) 상단의 공간부(C4)에 유입되어 지나 유출구(15)로 유출되고 압축된 압축탱크(2)내의 길소가스 팽창압과 공간부(C4)에 유입된 유압이 피스톤(4)에 동시에 작용하여 강력한 힘으로 피스톤(4)을 하강시켜 치즐(3)에 압력을 가하는 타격행정이 이루어지게 되는 것으로 헤드부(5) 하단 공간부(C2)의 유체는 메인밸브(10)의 유통로(13)를 통해 유출구(15)로 유출되기 때문에 피스톤(4)은 저항을 받지 않고 하강하게 된다. 압축된 질소가스 팽창압과 공간부(C4)에 유입된 유압이 동시에 작용하여 하강하는 피스톤(4)의 헤드부(5)가 밸브 공간부(V1)(V2)와 연결된 유로(22)를 지나게 되면 밸브공간부(V1)가 유로(22)에 의해 공간부(C3)와 연결되고 유입구(14)를 통해 유입된 유체의 유압이 유로(20)의 플런저(23)에 가해져 밸브헤드(11)에 맞닿아 있는 플런저(23)가 메인밸브(10)와 함깨 하강하게 되는 메인 밸브 하강 행정이 이루어지는 것으로 밸브승강부(16)의 하단에 메인밸브(10)가 밀착되어 피스톤 상승행정이 곧바로 이루어질 수 있는 상태가 됨으로서 상술한 작동이 연속 반복해서 이루어지게 되는 것이다.When the head portion 5 of the piston 4 thus rising passes the flow passage 22, the space portion C3 and the valve space V1 and V2 are connected through the flow passage 22 to the space portion C2. The introduced fluid flows into the valve space V1 through the flow passage 22 and the hydraulic pressure is applied to the valve head 11 so that the main valve 10 is raised so that the main valve 10 rises together with the plunger 23. When the inflow path (17) (18) and the flow path (13) is connected to the fluid flow inflow from the inlet port 14 through the narrow portion 12 through the valve space portion (V2) and the space portion (C2) The fluid flowing through the flow path 19 through 13 flows into the space C4 at the top of the upper elevating part 6, passes through the outlet 15, and is discharged to the outlet 15. The hydraulic pressure flowing into the space portion C4 acts on the piston 4 at the same time, thereby lowering the piston 4 with a strong force to apply a pressure stroke to the chisel 3. ball Fluid unit (C2) is because the outlet to the outlet 15 through 13, the flow passage of the main valve 10, the piston 4 becomes lowered without resistance. The compressed nitrogen gas expansion pressure and the hydraulic pressure introduced into the space C4 simultaneously act so that the head portion 5 of the piston 4 passes through the flow path 22 connected to the valve spaces V1 and V2. When the valve space portion V1 is connected to the space portion C3 by the flow passage 22, the hydraulic pressure of the fluid introduced through the inlet 14 is applied to the plunger 23 of the flow passage 20 so that the valve head 11 is closed. The main valve 10 is brought into close contact with the lower end of the valve lift part 16 so that the plunger 23 in contact with the main valve 10 is lowered with the main valve 10. By being in this state, the above-described operation is performed repeatedly.

이와 같이 본 발명은 피스튼 상승행정시 헤드부(5) 하부와 하부 승강부(7) 하단의 공간부(C2)(C1)에서 동시에 유압이 작용하여 피스톤(4)을 상승시킴으로서 압축력을 증대시키고 타격행정시 증대된 압축력으로 압축된 질소가스의 팽창력과 공간부(C4)에 가해지는 유압이 피스톤(4)에 동시에 작용하여 치즐(3)에 작용하는 압력올 증대시킴으로서 유압브래이커의 파쇄력올 높여주고 하나의 메인밸브(10)로 유압의 공급 또는 배출과정이 이루어져 유압을 효과적으로 이용할 수 있으며 유압이 작동 포인트 불일치에 따른 감쇄 작용이 없기 때문에 작동 싸이클이 안정되게 이루어져 타격수가 일정하고 유압 브래이커의 내구성이 증대되는 등의 효과가 있는 것이다.As such, the present invention increases hydraulic pressure by simultaneously actuating hydraulic pressure in the spaces C2 and C1 at the lower part of the head part 5 and the lower part of the lower lifting part 7 during the upward stroke of the piston, thereby increasing the compressive force. The expansion force of the compressed nitrogen gas and the hydraulic pressure applied to the space C4 at the stroke stroke simultaneously act on the piston 4 to increase the pressure on the chisel 3, thereby increasing the breaking force of the hydraulic breaker. It is possible to effectively use the hydraulic pressure by increasing and supplying or discharging the hydraulic pressure with one main valve 10. Since the hydraulic pressure does not attenuate according to the operating point mismatch, the operating cycle is stabilized and the number of strokes is constant and the hydraulic breaker There is an effect such that the durability of the product is increased.

Claims (1)

중간에 헤드부(5)가 형성되고 헤드부(5)의 상.하부에 승강부(6)(7)가 형성되며 상부승강부(6)에 압축부(8)가 단이지게 형성되고 하부승강부(7)에는 타격부(9)가 단이지게 형성된 피스톤(4)을 실린더(1)내에 삽입설치하여 헤드부(5) 상하부와 승강부(6)(7)의 상하부에 유압이 작용하는 공간부(C3)(C2)(C4)(C1)를 각각 형성하고, 유입구(14)와 유출구(15)사이의 밸브 승강부(16)에 유통로(13)가 형성된 메인밸브(10)를 내설하되 메인밸브(10)의 상단부에 플랜지형의 밸브 헤드(11)를 형성하고 하부에 협소부(12)를 형성하며, 유입구(14)에 연결된 유입로(17)(18)를 공간부(C1)(C2)에 각각 연결시키고 공간부(C4)의 상부에 연결된 유로(19)(20)의 상부에 연결된 유로(19)(20)중 (19)는 유입구(14)에 연결하며 (20)에 플런저(23)를 설치하여 플런저(23)가 밸브헤드(11)에 닿도록 하고, 공간부(23) 상부에 유츨구 (15)와 연결된 유로(22)를 형성하며 공간부(C3) 하부의 유로(22)를 밸브헤드(11) 하부의 밸브 공간부(V1)(V2)에 연결되도록 형성하여서 된 유압 브레이커.The head part 5 is formed in the middle, and elevating parts 6 and 7 are formed on the upper and lower parts of the head part 5, and the compression part 8 is formed in the upper lifting part 6 so that the lower lifting part is formed. The part 7 is a space in which hydraulic pressure acts on the upper and lower parts of the head part 5 and the elevating parts 6 and 7 by inserting and installing the piston 4 having the striking part 9 formed in the cylinder 1. The main valve 10 having the flow path 13 is formed in the valve lifting portion 16 between the inlet 14 and the outlet 15, respectively, and forming the portions C3, C2, C4, and C1. However, a flange-shaped valve head 11 is formed at the upper end of the main valve 10 and a narrow portion 12 is formed at the lower portion thereof, and the inflow passages 17 and 18 connected to the inlet 14 are spaced portions C1. (19) of the flow paths (19) and (20) connected to the upper portion of the flow paths (19) and (20) connected to the upper portion of the space portion (C4), respectively, are connected to the inlet (14). The plunger 23 to the valve head 11 so that the plunger 23 touches the valve head 11, A hydraulic breaker is formed by forming a flow passage 22 connected to the yulet port 15 and connecting the flow passage 22 under the space portion C3 to the valve space portions V1 and V2 under the valve head 11. .
KR1019920022958A 1992-12-01 1992-12-01 Oil pressure breaker KR960006735B1 (en)

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KR1019920022958A KR960006735B1 (en) 1992-12-01 1992-12-01 Oil pressure breaker

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KR1019920022958A KR960006735B1 (en) 1992-12-01 1992-12-01 Oil pressure breaker

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KR960006735B1 true KR960006735B1 (en) 1996-05-23

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US9988843B2 (en) 2012-07-03 2018-06-05 Il Jae Lee Impact body for hydraulic impact device

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2788047B1 (en) * 1999-01-06 2001-01-26 Sidel Sa FILLING MACHINE COMPRISING IMPROVED CLEANING MEANS
KR100400385B1 (en) * 2001-07-11 2003-10-08 주식회사 코막 Control valve for hidraulic breaker

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US9988843B2 (en) 2012-07-03 2018-06-05 Il Jae Lee Impact body for hydraulic impact device

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