KR970009661B1 - An automatic grease injeciton system for using in a hydraulic breaker - Google Patents

An automatic grease injeciton system for using in a hydraulic breaker Download PDF

Info

Publication number
KR970009661B1
KR970009661B1 KR1019940040162A KR19940040162A KR970009661B1 KR 970009661 B1 KR970009661 B1 KR 970009661B1 KR 1019940040162 A KR1019940040162 A KR 1019940040162A KR 19940040162 A KR19940040162 A KR 19940040162A KR 970009661 B1 KR970009661 B1 KR 970009661B1
Authority
KR
South Korea
Prior art keywords
grease
chisel
injection device
sliding part
striking device
Prior art date
Application number
KR1019940040162A
Other languages
Korean (ko)
Other versions
KR960023990A (en
Inventor
임종혁
Original Assignee
대우중공업 주식회사
석진철
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 대우중공업 주식회사, 석진철 filed Critical 대우중공업 주식회사
Priority to KR1019940040162A priority Critical patent/KR970009661B1/en
Publication of KR960023990A publication Critical patent/KR960023990A/en
Application granted granted Critical
Publication of KR970009661B1 publication Critical patent/KR970009661B1/en

Links

Classifications

    • 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
    • F16N—LUBRICATING
    • F16N7/00—Arrangements for supplying oil or unspecified lubricant from a stationary reservoir or the equivalent in or on the machine or member to be lubricated
    • F16N7/02—Arrangements for supplying oil or unspecified lubricant from a stationary reservoir or the equivalent in or on the machine or member to be lubricated with gravity feed or drip lubrication
    • F16N7/04—Arrangements for supplying oil or unspecified lubricant from a stationary reservoir or the equivalent in or on the machine or member to be lubricated with gravity feed or drip lubrication with oil flow promoted by vibration

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Percussive Tools And Related Accessories (AREA)

Abstract

The automatic grease injection system(3) is installed on the oil drain tube(2) of the stroke system(1) and by connecting this injection system to the chisel sliding part(5) of the stroke system through the grease hose(4), the grease inside the injection system is automatically supplied to the chisel sliding part. The automatic grease injection system is constructed with the injector(7) which installed between the bottom of the grease storing container(6) and the top of the oil drain-pipe but form the injector into the top, bottom, and middle body parts(7a,7b,7c) each and place the diaphragm(8) in between each body parts. At the inflow path(9) which formed at the upper part of the upper body part, the ball(10) is placed and the grease discharge gate(11) on the side of the upper body part, and on the bottom of the lower body part, the working fluid entrance(12) is formed. When the vibration is generated in the stroke system body(13), the grease in the storing container is supplied automatically to the chisel sliding part to lubricate by receiving the force in the down direction due to inertia.

Description

타격장치용 그리이스 자동주입장치Grease Automatic Injection Device for Strike Device

제1도는 본 발명에 따른 타격장치용 그리이스 자동주입장치를 타격장치에 설치한 상태를 개략적으로 나타낸 설치도.1 is an installation diagram schematically showing a state in which the grease automatic injection device for the striking device according to the present invention is installed in the striking device.

제2도는 제1도의 타격장치용 그리이스 자동주입장치를 나타낸 단면도이다.2 is a cross-sectional view showing the grease automatic injection device for the striking device of FIG.

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

1 : 타격장치 2 : 배유관1: Strike Device 2: Oil Pipe

3 : 주입장치 4 : 그리이스 호스3: injection device 4: grease hose

5 : 치즐습동부 6 : 저장용기5: Chisel Wet East 6: Storage Container

7 : 주입기 8 : 격막7: injector 8: diaphragm

9 : 유입통로 10 : 볼9: inflow passage 10: ball

11 : 토출구 12 : 출입구11 discharge port 12 entrance and exit

13 : 타격장치 몸체 14 : 피스톤13: blower body 14: piston

15 : 치즐 16 : 브라켓트15: Chisel 16: Bracket

본 발명은 건설중장비에서 사용되는 타격장치에 윤활용 그리이스를 자동적으로 주입시키도록 한 장치에 관한 것으로, 특히 타격장치의 자체진동과 배유관의 맥동을 이용하여 치즐 습동면에 그리이스가 자동적으로 주입되게 함과 더불어 어큐물레이터의 원리로서 맥동을 완화시킬 수 있도록 된 타격 장치용 그리이스 자동주입장치에 관한 것이다.The present invention relates to a device for automatically injecting lubricating grease into the striking device used in the construction equipment, in particular to the grease is automatically injected into the chisel sliding surface using the vibration of the blower and the pulsation of the oil pipe. In addition, the principle of accumulator relates to a grease automatic injection device for the striking device that can alleviate the pulsation.

일반적으로 건설중장비등에서 물건을 파괴시킬 때 사용하는 유압브레이카등에서 충경력을 발생시키는 타격장치는 타격장치 몸체 내부에 유압의 힘으로 상하왕복운동하는 피스톤이 하강할 때에 피스톤 하단에 설치된 치즐(Chisel)을 타격하여 발생되는 충격력으로 암석을 깨거나 말뚝을 박는 일을 하는 것으로, 상기타격공구인 치즐은 타격장치 몸체 내부에서 상하왕복운동하여 작업을 수행할 때 그 습동이 원활하게 이루어지게 하여 치즐과 치즐습동면 사이의 마찰을 감소시켜 타격장치의 수명의 연장 및 작업시 발생하는 열,소음을 감소시켜 줄 필요성이 있다.In general, a blow device that generates a shock force in a hydraulic brake car used to destroy an object in construction equipment, etc. is a chisel installed at the bottom of the piston when the piston moving up and down by hydraulic force descends inside the blower body. By breaking the rock or driving the pile with the impact force generated by hitting the hitting tool, the chisel is the chisel and chisel to make the sliding smoothly when performing the up and down movement inside the striking device body It is necessary to reduce the friction between the sliding surface and to extend the life of the hitting device and to reduce the heat and noise generated during operation.

상기와 같은 윤활유 주입의 필요성에 의해 종래에는 타격장치의 치즐동면에 수동으로 윤활용 그리이스를 주입하여 사용하였던 바, 그 사용이 불편하고, 윤활이 필요한 부분의 구석구석까지 그리이스의 주입이 원활하지 못하다는 문제점이 있었다.Due to the necessity of lubricating oil as described above, in the past, the lubricating grease was manually injected into the chisel moving surface of the striking device. Therefore, the grease is inconvenient and the grease is not smoothly injected to every corner of the lubricating part. There was a problem.

이에 본 발명은 상기한 바의 제문점을 해결하기 위하여 안출된 것으로서 타격장치의 치즐습동면에 그리이스를 자동으로 원활히 주입할 수 있게 되므로써 사용히 편리해지고, 치즐 및 치즐습동면의 수명을 연장시킬 수 있을 뿐만 아니라 배유관의 맥동을 완화시키므로써 굴삭기등의 배유관과 연결된 작동유 냉각장치나 필터등의 손상을 방지하여 내구성을 향상시킬 수 있는 타격장치용 그리이스 자동주입장치를 제공함에 그 목적이 있다.Accordingly, the present invention has been made to solve the above-mentioned problems, so that the grease can be smoothly and automatically injected into the chisel sliding surface of the striking device is convenient to use, can extend the life of the chisel and chisel sliding surface. In addition, the purpose of the present invention is to provide a grease automatic injection device for the striking device, which can improve durability by preventing damage to the hydraulic oil cooling device or filter connected to the oil pipe such as an excavator by reducing the pulsation of the oil pipe.

상기와 같은 목적을 달성하기 위한 본 발명은, 타격장치의 배유관상에 그리이스 주입장치가 설치되어 있고, 이 주입장치는 그리이스를 매개로 윤활이 필요한 타격장치의 치즐습동부에 연결설치되어 그리이스를 자동적으로 공급되도록 되어 있다.The present invention for achieving the above object, the grease injection device is installed on the drainage pipe of the striking device, the injection device is connected to the chisel sliding part of the striking device that requires lubrication via grease to automatically grease the grease. It is intended to be supplied by.

그리고, 상기 주입장치는 그리이스 저장탱크 하부와 작동유 배유관 상부 사이에 주입기가 설치되어 있고, 이 주입기는 상부몸체와 중간몸체 및 하부몸체로 나뉘어지되, 상기 상부몸체와 중간몸체 사이 및 중간몸체와 하부몸체 사이는 그 사이에 설치된 격막에 의해 구분되도록 되어 있는 한편, 상기 저장탱크와 연결되는 상부몸체의 상부에 형성된 유입통로에 볼이 삽입설치되어 있고, 상부몸체 측면에 그리이스 토출구가 형성되어 있으며 상기 배유관과 연결되는 하부몸체 하부에 작동유 출입구가 형성된 구조로 되어 있다.And, the injection device is installed between the lower portion of the grease storage tank and the operating oil drainage pipe, the injector is divided into an upper body, an intermediate body and a lower body, between the upper body and the intermediate body and between the intermediate body and the lower body Between the bodies are separated by a diaphragm provided therebetween, the ball is inserted into the inlet passage formed in the upper portion of the upper body connected to the storage tank, the grease discharge port is formed on the side of the upper body It has a structure in which a hydraulic oil entrance is formed in a lower part of the lower body connected to the oil pipe.

이러한 구조로 이루어진 본 발명은, 작업중 타격장치가 반발되어 발생되는 타격장치 내부의 충격압에 의해 타격장치의 자체진동과 배유관의 맥동을 이용하여 치즐습동면에 그리이스를 자동으로 원활하게 주입되어 사용이 편리해짐과 더불어 어큐물레이터의 원리로서 맥동을 완화시킬 수 있으므로써 굴삭기등의 배유관과 연결된 작동유 냉각장치나 필터등의 손상을 방지하여 내구성을 향상시킬 수 있는 것이다.The present invention made of such a structure, the grease is automatically and smoothly injected into the chisel sliding surface using the vibration of the impact device and the pulsation of the oil pipe by the impact pressure inside the impact device generated by the impact device is repulsed during operation. In addition to being convenient, the pulsation can be alleviated on the basis of the accumulator, thereby improving durability by preventing damage to the hydraulic fluid cooler or filter connected to the drain pipe such as an excavator.

이하 본 발명을 첨부한 예시도면을 참조하여 자세히 설명한다.Hereinafter, with reference to the accompanying drawings, the present invention will be described in detail.

제1도는 본 발명에 따른 타격장치용 그리이스 자동주입장치를 타격장치에 설치한 상태를 개략적으로 나타낸 설치도이고, 제2도는 제1도의 타격장치용 그리이스 자동주입장치를 나타낸 단면도로서, 타격장치(1)의 배유관(2)상에 그리이스 주입장치(3)가 설치되어 있고, 이 주입장치(3)는 그리이스 호스(4)를 매개로 타격장치(1)의 배유관(2)상에 그리이스 주입장치(3)가 설치되어 있고, 이 주입장치(3)는 그리이스 호스(4)를 매개로 타격장치(1)의 치즐습동부(5)에 연결설치되어, 주입장치(3)내의 그리이스를 윤활이 필요한 치즐습동부(5)에 자동적으로 공급되도록 되어 있다.FIG. 1 is an installation diagram schematically showing a state in which a grease automatic injection device for a striking device is installed on a striking device, and FIG. 2 is a cross-sectional view showing a grease automatic injection device for a striking device of FIG. A grease injection device (3) is provided on the oil pipe (2) of 1), and this injection device (3) is grease on the oil pipe (2) of the striking device (1) via the grease hose (4). An injection device 3 is provided, which is connected to the chisel sliding part 5 of the striking device 1 via the grease hose 4, and the grease in the injection device 3 is connected. The chisel sliding part 5 which requires lubrication is automatically supplied.

그리고, 상기 그리이스 주입장치(3)는 그리이스가 저장되어 있는 저장용기(6) 하부와 작동유 배유관(2)상부 사이에 주입기(7)가 설치되어 있고, 이 주입기(7)는 상부몸체(7a)와 중간몸체(7b) 및 하부몸체(7c)로 나뉘어지되, 상기 상부몸체(7a)와 중간몸체(7b) 사이 및 중간몸체(7b)와 하부몸체(7c) 사이는 그 사이에 설치된 격막(8)에 의해 구분되도록 되어 있는 한편, 상기 저장용기(6)와 연결되는 상부몸체(7a)의 상부에 형성된 유입통로(9)에 볼(10)이 삽입설치되어 있고, 상부몸체(7a) 측면에 그리이스 토출구(11)가 형성되어 있으며, 상기 배유관(2)과 연결되는 하부몸체(7c) 하부에 작동유 출입구(12)가 형성된 구조로 되어 있다.In addition, the grease injection device 3 is provided with an injector 7 between a lower portion of the storage vessel 6 in which grease is stored and an upper portion of the hydraulic oil drainage pipe 2, and the injector 7 has an upper body 7a. ) And an intermediate body 7b and a lower body 7c, but between the upper body 7a and the middle body 7b, and between the middle body 7b and the lower body 7c, a diaphragm is installed between them. 8), the ball 10 is inserted into the inflow passage 9 formed in the upper portion of the upper body (7a) connected to the storage container (6), the side of the upper body (7a) The grease discharge port 11 is formed, and the hydraulic oil inlet port 12 is formed in the lower part of the lower body 7c connected to the drain pipe 2.

여기서, 상기 중간몸체(7b) 내부에는 압축가스가 충전되도록 되어 있다.Here, the compressed gas is filled in the intermediate body 7b.

한편, 유압에 의해 작동되는 타격장치(1)는 제1도에 나타낸 바와 같이 타격장치 몸체(13) 내부에 유압에의해 상하왕복운동하는 피스톤(14)이 그 하부에 설치되어 있는 타격공구인 치즐(15)을 타격하여 발생된 충격력으로 암석을 깨거나 말뚝을 박는 일을 하는 것으로, 피스톤(14)이 하강될 때에 치즐(15)에 큰 충격력을주며, 작업효율을 높이기 위해서는 피스톤(14)을 빠른 속도로 하강시켜야 하는 바, 타격후 치즐(15)과 암석의 탄성으로 인하여 다시 순간적으로 반발하여 튕겨오르게 된다. 이때 피스톤(14)의 반발로 인하여 타격장치(1) 내부에는 큰충격압이 형성되어 타격장치 몸체(13)와 이를 고정하고 있는 브라켓트(16)에 상향의 충격진동이 발생된다, 이때 또한 타격장치 몸체(13)내에 형성된 충격압은 작동유 배유시 배유관(2)에 맥동을일으키게 한다,On the other hand, the striking device 1 operated by hydraulic pressure is a chisel which is a striking tool in which a piston 14, which is reciprocated up and down by hydraulic pressure, is installed in the lower part of the striking device body 13 as shown in FIG. By breaking the rock or pile up the impact force generated by hitting the (15), giving a large impact force to the chisel (15) when the piston 14 is lowered, to increase the working efficiency Should be lowered at a high speed, due to the elasticity of the chisel (15) and the rock after the blow again will bounce back instantaneously. At this time, a large impact pressure is formed inside the striking device 1 due to the repulsion of the piston 14, and upward impact vibration is generated on the striking device body 13 and the bracket 16 fixing the same. The impact pressure created in (13) causes pulsation in the drain pipe (2) when the hydraulic oil is drained,

여기서 본 발명은, 상기한 바와 같이 피스톤(14)의 반동에 의해 타격장치 몸체(13)에 발생되는 진동과 배유관(2)내에서의 맥동을 이용한 것으로, 타격장치 몸체(13)에 진동이 발생되면 그리이스 저장용기(6)속의 그리이스는 관성에 의해 하향으로 힘을 받아 그리이스 유입통로(9)를 통해 주입기(7) 상부몸체(7a)로 흘러내려 일시저장되게 되고, 이때 그리이스 유입통로(9)에 삽입되어 있는 불(10)은 유입통로(9) 하부의 주입구(9a)로 내려오게 된다.Here, the present invention uses the vibration generated in the striking device body 13 by the recoil of the piston 14 and the pulsation in the drain pipe 2, and the vibration is applied to the striking device body 13 as described above. When generated, the grease in the grease storage container 6 is forced downward by the inertia and flows to the upper body 7a of the injector 7 through the grease inflow passage 9 to be temporarily stored. In this case, the grease inflow passage 9 Fire (10) inserted into the lower portion is lowered to the inlet (9a) of the inlet passage (9).

그리고, 배유관(2)내 작동유의 맥동을 형성시키는 충격압은 배유관(2)과 연결된 주입기(7) 하부몸체(7c)내의 작동유에도 작용되어 하부몸체(7c)내의 작동유의 체적이 커지게 되므로써 중간몸체(7b)와 하부몸체(7c) 사이에 설치되어 있는 신축성있는 격막(8)에 압력을 가하여 중간몸체(7b)내에 충전되어 있는 압축가스의 압력을 높이게 되고, 이에 따라 중간몸체(7b) 상부에 설치되어 있는 격막(8)에 의해 상부몸체(7a)속의 그리이스에 압력을 가하게 되며, 이때 그리이스 유입통로(9)에 삽입되어 있는 볼(10)은 상부몸체(7a)내의 그리이스 압력으로 인해 유입통로(9)의 상부로 밀려 올라가 유입통로(9)의 포펫면(9b)을 막아 상부몸체(7a)내의 압축된 그리이스는 토출구(11)로 밀려 나가게 되며, 결국 압축된 그리이스는 그리이스 호스(4)를 거쳐 치즐습동부(5)으로 공급되어 윤활작용을 하게 되는 것이다.The impact pressure for forming the pulsation of the working oil in the drain pipe 2 also acts on the working oil in the lower body 7c of the injector 7 connected to the drain pipe 2 so that the volume of the working oil in the lower body 7c becomes large. The pressure is applied to the elastic diaphragm 8 provided between the intermediate body 7b and the lower body 7c, thereby increasing the pressure of the compressed gas filled in the intermediate body 7b, and thus the intermediate body 7b. Pressure is applied to the grease in the upper body 7a by the diaphragm 8 installed in the upper part, and the ball 10 inserted into the grease inflow passage 9 is caused by the grease pressure in the upper body 7a. Pushed up the inflow passage 9 to block the poppet surface 9b of the inflow passage 9, the compressed grease in the upper body 7a is pushed out to the discharge port 11, and eventually the compressed grease is the grease hose ( 4) is supplied to the chisel sliding part (5) Will be lubricated.

이어서, 배유관(2)의 압력형성이 끝나면 피스톤(14)은 다시 하강하게 되고, 이때부터 브라켓트(16)에 다시 상향으로의 힘이 작용되어 저장용기(6)속의 그리이스는 관성에 의해 주입기(7)의 상부몸체(7a)속으로 유입되게 된다.Subsequently, when the pressure formation of the drain pipe 2 is completed, the piston 14 is lowered again, and from this time, upward force is applied to the bracket 16 again, so that the grease in the storage container 6 is injected by inertia ( 7) is introduced into the upper body (7a).

상기와 같은 과정이 반복되면서 저장용기(6)속의 그리이스는 자동으로 치즐습동부(5)에 공급되어 윤활작용을 할 수가 있는 것이다.As the above process is repeated, the grease in the storage container 6 is automatically supplied to the chisel sliding part 5 to be lubricated.

한편, 배유관(2)에 발생된 맥동은 중간몸체(7b)속의 압축가스를 압축하는데 소모되어 그 에너지가 줄어들게 되는데, 이것은 일반적인 어큐물레이터의 역할을 수행하는 것과 동일한 기능이 되므로, 본 발명에 의한 장치는 유압 배관내 작동유의 맥동을 완화시키는 역할도 동시에 수행하게 되는 것이다.On the other hand, the pulsation generated in the drainage pipe (2) is consumed to compress the compressed gas in the intermediate body (7b) and the energy is reduced, which is the same function as performing a normal accumulator, so The device is to simultaneously perform the role of alleviating the pulsation of the hydraulic oil in the hydraulic pipe.

이상에서 설명한 바와 같이 본 발명에 따르면 작업중 타격장치(1)가 반발되어 발생되는 타격장치(1) 내부의 충격압에 의해 타격장치(1)의 자체진동과 배유관(2)의 맥동을 이용하여 치즐습동부(5)에 그리이스를 자동으로 원활하게 주입될 수 있으므로써 그리이스의 공급이 편리해지고, 이 원활한 그리이스의 주입이 이루어져 치즐(15)이 왕복운동할 때 발생되는 열 및 마모량을 줄일 수 있어 치즐(15) 및 치즐습동부(5)의 수명을 연장시킬 수 있을 뿐만 아니라, 어큐물레이터의 원리로서 맥동을 원화시킬 수 있으므로써 굴삭기등의 배유관(2)과 연결된 작동유 냉각장치나 필터등의 손상을 방지하여 내구성을 향상시킬 수 있는 것이다.As described above, according to the present invention, the tooth is formed by using the self-vibration of the striking device 1 and the pulsation of the oil supply pipe 2 by the impact pressure inside the striking device 1 generated when the striking device 1 is repulsed during operation. The grease can be smoothly and smoothly injected into the enjoyable moving part 5, thereby making it easy to supply grease, and the smooth grease is injected to reduce the amount of heat and wear generated when the chisel 15 reciprocates. In addition to extending the life of the 15 and the chisel sliding part 5, the pulsation can be originalized by the principle of the accumulator, so that the hydraulic oil cooling device or the filter connected to the drain pipe 2 of the excavator, etc. It is possible to improve the durability by preventing damage.

Claims (2)

타격장치(1)의 배유관(2)상에 그리이스 주입장치(3)가 설치되고, 이 주입장치(3)가 그리이스 호스(4)를 매개로 윤활히 필요한 타격장치(1)의 치즐습동부(5)에 연결설치된 타격장치용그리이스 자동공급장치,A grease injection device (3) is installed on the drainage pipe (2) of the blower (1), and the chisel sliding part of the blower (1), which is in need of lubrication through the grease hose (4) ( 5) Grease automatic feeder for striking device connected to 제1항에 있어서, 그리이스 주입장치(3)는 격막(8)에 의해 상부몸체(7a)와 중간몸체(7b) 및 하부몸체(7c)로 분리 구성하고, 상기 상부몸체(7a)는 상부에 설치된 상기 그리이스 저장용기(6)와 역류방지용 볼(10)이 설치된 유입통로(9)에 의해 연결됨과 더불어 호스(4)를 통하여 치즐습동부(5)와 연결되며, 상기 중간몸체(7)에 압축가스로 충전되어 있는 한편, 상기 하부몸체(7c)는 상기 배유관(2)의 맥동압력이 작용될 수 있도록 작동유 출입구(12)를 통해 배유관(2)과 연결된 것을 특징으로 하는 타격장치용 그리이스 자동주입장치.2. The grease injection device (3) according to claim 1, wherein the grease injection device (3) is separated into an upper body (7a), an intermediate body (7b), and a lower body (7c) by a diaphragm (8), and the upper body (7a) is located at the upper portion. The grease storage vessel (6) and the backflow prevention ball (10) installed are connected by the inlet passage (9) and the chisel sliding part (5) through the hose (4), the intermediate body (7) While filled with compressed gas, the lower body (7c) is for the striking device, characterized in that connected to the oil pipe (2) through the hydraulic fluid inlet 12 so that the pulsating pressure of the oil pipe (2) can be applied Grease automatic injection device.
KR1019940040162A 1994-12-30 1994-12-30 An automatic grease injeciton system for using in a hydraulic breaker KR970009661B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
KR1019940040162A KR970009661B1 (en) 1994-12-30 1994-12-30 An automatic grease injeciton system for using in a hydraulic breaker

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR1019940040162A KR970009661B1 (en) 1994-12-30 1994-12-30 An automatic grease injeciton system for using in a hydraulic breaker

Publications (2)

Publication Number Publication Date
KR960023990A KR960023990A (en) 1996-07-20
KR970009661B1 true KR970009661B1 (en) 1997-06-17

Family

ID=19406022

Family Applications (1)

Application Number Title Priority Date Filing Date
KR1019940040162A KR970009661B1 (en) 1994-12-30 1994-12-30 An automatic grease injeciton system for using in a hydraulic breaker

Country Status (1)

Country Link
KR (1) KR970009661B1 (en)

Also Published As

Publication number Publication date
KR960023990A (en) 1996-07-20

Similar Documents

Publication Publication Date Title
US3714789A (en) Automatically self-regulating variable-stroke, variable-rate and quiet-operating pile driver method and system
US3878902A (en) Impact tool
KR200416045Y1 (en) The oil pressure breaker cylinder and piston structure
CN101235810A (en) Hydraulic gas compressor
US3788402A (en) Automatically self-regulating variable-stroke, variable-rate and quiet-operating pile driver apparatus
KR102103906B1 (en) Hydraulic breaker with auto lubrication structure
KR970009661B1 (en) An automatic grease injeciton system for using in a hydraulic breaker
KR200369452Y1 (en) Hydraulic Hitting type Crushing Device with Auto Lubricant Part and Compressed Air Supporting Part
CN103046600B (en) A lubricating apparatus for contact piston of hydraulic breaker
US2118234A (en) Reciprocating liquid pump
EP0346597B1 (en) Hammer actuated by means of a hydraulic system, in particular suitable for use in dusty, corrosive, and similarly hostile environments
US2396627A (en) Percussive tool operated by internal-combustion engines
KR100468942B1 (en) Auto lubricating device for breaker
CN102338058A (en) Reciprocating compressor
KR100908218B1 (en) Automatic lubricant supply hydraulic breaker
CN219952090U (en) Dust fall formula hydraulic breaking hammer
RU2709572C1 (en) Scraper with ladle gas lubrication
SU1086071A1 (en) Hydraulic pile hammer
CN104613299A (en) Automatic lubricating device for cleaving machine
US1349394A (en) Pump
CN221171747U (en) Hydraulic breaking hammer with self-lubricating structure
CN217206823U (en) Deep well pump
SU1537802A1 (en) Percussive mechanism
CN110106642B (en) Needle bar mechanism and sewing machine with same
RU190560U1 (en) Hydraulic hammer

Legal Events

Date Code Title Description
A201 Request for examination
G160 Decision to publish patent application
E701 Decision to grant or registration of patent right
GRNT Written decision to grant
FPAY Annual fee payment

Payment date: 20010331

Year of fee payment: 5

LAPS Lapse due to unpaid annual fee