KR900007466Y1 - Excavator bucket and breaker hydraulic system - Google Patents
Excavator bucket and breaker hydraulic system Download PDFInfo
- Publication number
- KR900007466Y1 KR900007466Y1 KR2019870017899U KR870017899U KR900007466Y1 KR 900007466 Y1 KR900007466 Y1 KR 900007466Y1 KR 2019870017899 U KR2019870017899 U KR 2019870017899U KR 870017899 U KR870017899 U KR 870017899U KR 900007466 Y1 KR900007466 Y1 KR 900007466Y1
- Authority
- KR
- South Korea
- Prior art keywords
- bucket
- valve
- breaker
- cylinder
- excavator
- Prior art date
Links
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
- E02F3/08—Dredgers; Soil-shifting machines mechanically-driven with digging elements on an endless chain
- E02F3/12—Component parts, e.g. bucket troughs
- E02F3/14—Buckets; Chains; Guides for buckets or chains; Drives for chains
- E02F3/141—Buckets; Chains; Guides for buckets or chains; Drives for chains buckets
-
- 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
- E02F9/2058—Electric or electro-mechanical or mechanical control devices of vehicle sub-units
- E02F9/2083—Control of vehicle braking systems
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60Y—INDEXING SCHEME RELATING TO ASPECTS CROSS-CUTTING VEHICLE TECHNOLOGY
- B60Y2200/00—Type of vehicle
- B60Y2200/40—Special vehicles
- B60Y2200/41—Construction vehicles, e.g. graders, excavators
- B60Y2200/412—Excavators
Landscapes
- Engineering & Computer Science (AREA)
- Mining & Mineral Resources (AREA)
- Civil Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Structural Engineering (AREA)
- Mechanical Engineering (AREA)
- Operation Control Of Excavators (AREA)
Abstract
내용 없음.No content.
Description
제1도는 본 고안 유압장치의 유압회로 개략도이다.1 is a schematic diagram of a hydraulic circuit of the inventive hydraulic apparatus.
* 도면의 주요부분에 대한 부호의 설명* Explanation of symbols for main parts of the drawings
1 : 제1펌프 2 : 버킷작동밸브1: 1st pump 2: Bucket operation valve
3 : 버킷실린더 4 : 제2펌프3: bucket cylinder 4: second pump
5 : 버킷 및 브레이커작동밸브 6 : 선택밸브5: bucket and breaker operating valve 6: selection valve
7 : 브레이커실린더 8 : 셔틀밸브7: Breaker cylinder 8: Shuttle valve
9 : 브레이커작동파이롯트관 10, 10' : 파이롯트관9: Breaker operation pilot pipe 10, 10 ': pilot pipe
본 고안은 굴삭기의 유압장치에 관한 것으로, 특히 굴삭기의 작업수단으로 장착되는 버킷과 브레이커(breaker)에 함께 쓰여질 수 있도록 된 굴삭기의 버킷 및 브레이커겸용 유압장치에 관한 것이다.The present invention relates to a hydraulic device of an excavator, and more particularly, to a bucket and a breaker combined hydraulic device of the excavator that can be used together with the bucket and the breaker (breaker) mounted as the working means of the excavator.
굴삭기로 토목기초공사를 할 경우, 일반적으로 흙과 같은 작업물을 버킷으로 퍼올려 덤프트럭 등에 상차하는 작업을 하고, 브레이커로는 단단한 작업물을 굴착 및 파괴하는 일종의 드릴작업을 수행하게 되는바, 이러한 작업을 하도록 된 종래의 굴삭기는 버킷이나 브레이커들을 동작시키기 위한 유압회로가 각각 별도로 구성되어 있어서, 유압회로의 설치공간이 커지게 됨은 물론 그 때문에 많은 부대설비가 필요하게 되어 구조가 복잡해져서 조작하기가 번거롭다는 결점을 갖고 있었다.In the case of civil foundation work with an excavator, a work such as lifting a soil-like work into a bucket and loading it on a dump truck, etc., and a breaker performs a kind of drilling work to excavate and destroy a hard work. Conventional excavators that are designed to do this work have separate hydraulic circuits for operating buckets or breakers, which increases the installation space of the hydraulic circuits and, as a result, requires a lot of additional equipment, which makes the structure complicated to operate. Had the disadvantage of being cumbersome.
이에 본 고안은 상기와 같은 제반 결점을 해소하기 위해 안출된 것으로 굴삭기의 버킷작업과 브레이커작업을 1개의 유압시스템으로 간편하게 수행할 수 있도록 된 굴삭기의 버킷과 브레이커겸용 유압장치를 제공함에 그 목적이 있다.The present invention has been made to solve the above-mentioned shortcomings, and an object of the present invention is to provide a bucket and breaker combined hydraulic device of an excavator that can easily perform a bucket operation and a breaker operation of the excavator in one hydraulic system. .
이러한 목적을 달성하기 위한 본 고안은, 제1펌프에 버컷작동밸브와 버킷실린더가 직렬로 연결되는 한편, 제2펌프에는 버컷 및 브레이커 작동밸브와 선택밸브가 직렬로 연결되어 브레이커실린더에 연결시켜지면서, 상기 선택밸브가 버킷실린더의 한쪽 라인과 병렬로 연결됨과 더불어 셔틀밸브와 브레이커작동 파이롯트관을 매개로 직렬로 연결되고, 이 셔틀밸브는 상기 버킷작동밸브와, 버킷 및 브레이커작동밸브에 파일롯트관을 통해 연결된 구조로 되어 있다.The present invention for achieving this purpose, while the first pump is connected to the breaker operation valve and the bucket cylinder in series, while the second pump is connected to the breaker cylinder is connected to the breaker and breaker operation valve and the selection valve in series In addition, the selection valve is connected in parallel with one line of the bucket cylinder, and in series via the shuttle valve and the breaker operated pilot pipe, the shuttle valve is connected to the bucket operated valve, the bucket and the breaker operated valve pilot pipe It is connected through the structure.
이하 본 고안을 첨부된 예시도면에 의거 상세히 설명한다.Hereinafter, the present invention will be described in detail with reference to the accompanying drawings.
제1도는 본 고안 유압장장치의 유압회로도로서, 제1펌프(1)에 버킷 밸브(2)와 버킷실린더(3)가 직렬로 연결되는 한편, 제2펌프(4)는 버킷 및 브레이커작동밸브(5)와 선택밸브(6)를 통해 브레이커실린더(7)에 연결되고, 상기 선택밸브(6)는 버킷실린더(3)의 한쪽라인과 병렬로 연결되면서 셔틀밸브(8)와 브레이커작동 파이롯트관(9)을 매개로 직렬로 연결되며, 이 셔틀밸브(8)는 다른 파이롯트관(10, 10')을 통해 상기 버킷작동밸브(2)와 버킷 및 브레이커작동밸브(5)에 각각 연결된 구조로 되어 있다.1 is a hydraulic circuit diagram of the hydraulic field device of the present invention, in which a bucket valve 2 and a bucket cylinder 3 are connected in series to the first pump 1, while the second pump 4 is a bucket and breaker operated valve. (5) and the selection valve (6) is connected to the breaker cylinder (7), the selection valve (6) is connected in parallel with one line of the bucket cylinder (3) while the shuttle valve (8) and the breaker operation pilot pipe (9) connected in series, the shuttle valve (8) is connected to the bucket operation valve (2) and the bucket and breaker operation valve (5), respectively, through the other pilot pipe (10, 10 ') It is.
여기서 상기 셔틀밸브(8)는 이 셔틀밸브(8)의 양쪽포트에 연결된 파일롯트관(9, 10)의 내부파일롯트압(b 또는 c)중의 어느 것이 작동되더라도, 이 내부파일롯트압에 따라 셔틀밸브(8)에 연결된 파일롯트관(10')을 거쳐 상기 파일롯트관(9 또는 10)의 내부파일롯트압이 전달되도록 되어 있다.In this case, the shuttle valve 8 is operated according to the internal pilot pressure even if any of the internal pilot pressures b or c of the pilot pipes 9 and 10 connected to both ports of the shuttle valve 8 is operated. The internal pilot pressure of the pilot pipe 9 or 10 is transmitted via the pilot pipe 10 'connected to the shuttle valve 8.
이와 같이 구성된 본 고안은, 굴삭기에 장착된 버킷 실린더(3)에 의해 작동시켜지는 버킷(도시되지 않음)을 동작시키기 위해, 버킷을 오무려주기 위한 파일롯트압(b)를 가해서 3위치(position) 4포트(port) 변환밸브로 된 상기 버킷작동밸브(2)를 절환시켜주게 되면, 제1펌프(1)의 작동유가 버킷실린더(3)로 공급됨과 더불어 셔틀밸브(8)를 동작시켜 버킷 및 브레이커작동밸브(5)를 절환시키게 된다.According to the present invention configured as described above, in order to operate a bucket (not shown) which is operated by the bucket cylinder 3 mounted on the excavator, the pilot position b is applied to deflect the bucket in three positions. When the bucket actuating valve 2, which is a 4-port conversion valve, is switched, the hydraulic oil of the first pump 1 is supplied to the bucket cylinder 3, and the shuttle valve 8 is operated to operate the bucket. And the breaker operation valve 5.
이때 제2펌프(4)에서 토출된 압유도 작동밸브(5)에 직렬로 연결시켜진 선택밸브(6)를 통해 버킷실린더(3)로 합류 공급되어 상기 버킷실린더(3)를 동작시키게 됨으로써 버킷이 오무림동작이 이루어지게 된다.At this time, the pressure oil discharged from the second pump 4 is supplied to the bucket cylinder 3 through the selection valve 6 connected in series to the actuating valve 5 to operate the bucket cylinder 3 to thereby operate the bucket. This peeping operation is made.
한편, 브레이커실린더(7)에 의해 작동되는 브레이커(도시되지 않음)를 동작시키기 위해, 선택밸브(6)와 작동밸브(5)에 브레이커 작동용 파일롯트압(c)을 가해 선택밸브(6)을 다시 원래의 위치로 절환시킴과 더불어 상기 작동밸브(5)를 버킷실린더(3)를 작동시킬 때와 마찬가지로 절환시켜주게 되면, 상기 제2펌프(4)의 작동유가 이 제2펌프(4)와 직렬로 연결되어진 버킷 및 브레이커작동밸브(5) 및 선택밸브(6)를 거쳐 브레이커를 동작시키는 브레이커 실린더(7)로 공급되어져 상기 브레이커실린더(7)가 동작하게 된다.On the other hand, in order to operate the breaker (not shown) operated by the breaker cylinder 7, the brake pressure pilot pressure c is applied to the selection valve 6 and the operation valve 5, so that the selection valve 6 is operated. When the switch is returned to its original position and the operating valve 5 is switched in the same manner as when the bucket cylinder 3 is operated, the operating oil of the second pump 4 is transferred to the second pump 4. It is supplied to the breaker cylinder (7) for operating the breaker through the bucket and the breaker operation valve (5) and the selection valve (6) connected in series with the breaker cylinder (7) to operate.
또한, 상기 버킷실린더(3)를 귀환시킬때에는 버킷작동밸브(2)에 버킷펼침(Bucket out)용 파일롯트압(a)을 가해 버킷작동밸브(2)를 다른 위치로 절환시켜 상기 버킷실린더(3)를 귀환시키게 되면 버킷펼침 동작이 이루어지게 되는 한편, 상기 버킷과 브레이커 이외의 다른 작동기구로써 예컨대 굴삭기의 부음실린더나 디퍼스틱실린더, 힐타입굴삭기의 경우에는 좌우 트랙모우터, 스윙모우터등으로 대체해서 사용하려는 경우에는, 버킷 및 브레이커작동밸브(5)에 상기와 같은 다른 기구를 동작시키기 위한 파일롯트압(d)을 가해서 작동밸브(5)를 다른 위치로 절환시키게 되면 다른 기구들이 작동될 수 있게 된다.In addition, when returning the bucket cylinder 3, a bucket pressure pilot pressure a is applied to the bucket actuating valve 2 to switch the bucket actuating valve 2 to another position so that the bucket cylinder ( When 3) is returned, the bucket unfolding operation is performed, and other mechanisms other than the bucket and the breaker are, for example, a negative cylinder, a differential cylinder of a excavator, a heel type excavator, a left and right track motor, a swing motor, and the like. In the case of alternative use, when the pilot valve (d) is applied to the bucket and the breaker operation valve (5) to operate the other mechanism as described above, the operation valve (5) is switched to another position and the other mechanisms are operated. It becomes possible.
이상 설명한 본 고안 유압장치에 의하면, 굴삭기의 버킷과 브레이커를 동작시킬때 각기 별도의 유압회로장치를 사용하지 않고 단지 1개의 유압회로만으로 버킷과 브레이커를 선택적으로 동작시킬 수가 있게 되는 효과가 있다.According to the inventive hydraulic device described above, when operating the bucket and the breaker of the excavator, there is an effect that can selectively operate the bucket and the breaker with only one hydraulic circuit without using a separate hydraulic circuit device.
Claims (1)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR2019870017899U KR900007466Y1 (en) | 1987-10-21 | 1987-10-21 | Excavator bucket and breaker hydraulic system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR2019870017899U KR900007466Y1 (en) | 1987-10-21 | 1987-10-21 | Excavator bucket and breaker hydraulic system |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| KR890008774U KR890008774U (en) | 1989-05-29 |
| KR900007466Y1 true KR900007466Y1 (en) | 1990-08-18 |
Family
ID=19268769
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| KR2019870017899U KR900007466Y1 (en) | 1987-10-21 | 1987-10-21 | Excavator bucket and breaker hydraulic system |
Country Status (1)
| Country | Link |
|---|---|
| KR (1) | KR900007466Y1 (en) |
-
1987
- 1987-10-21 KR KR2019870017899U patent/KR900007466Y1/en not_active IP Right Cessation
Also Published As
| Publication number | Publication date |
|---|---|
| KR890008774U (en) | 1989-05-29 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| EP1380756A4 (en) | Fluid pressure circuit | |
| JP4031088B2 (en) | Excavator control device | |
| US3966066A (en) | Hydraulic circuit | |
| JP3827220B2 (en) | Hydraulic circuit for attached work machine | |
| KR900007466Y1 (en) | Excavator bucket and breaker hydraulic system | |
| KR100474259B1 (en) | Hydraulic devices for cylinders for work tools of construction machinery | |
| US5794511A (en) | Apparatus and method for controlling multiple fluid cylinders | |
| JP2583127B2 (en) | Hydraulic excavator traveling / work equipment operating device | |
| KR960002911Y1 (en) | Hydraulic circuit for handling dependently or independently wheel rotor of civil engineering equipments | |
| JPS61113932A (en) | Hydraulic circuit for auxiliary working machine for construction machinery | |
| JPS5935666Y2 (en) | Rotating excavator speed increase circuit | |
| JPH02136432A (en) | Oil-pressure circuit for backhoe working vehicle | |
| JPS6126431Y2 (en) | ||
| KR0131980Y1 (en) | Two step relief hydraulic circuit apparatus for a heavy machine | |
| KR940000174Y1 (en) | Bucket linkage structure of loader | |
| JPH11125207A (en) | Hydraulic circuit formation of plural actuators and excavating attachment having said circuit | |
| JPS6056923B2 (en) | hydraulic circuit | |
| KR960041566A (en) | Optional Work Tool Actuator for Excavators | |
| JP2581863Y2 (en) | Hydraulic circuit of reciprocating switching valve | |
| JPH04297626A (en) | Hydraulic circuit for construction machine | |
| JPS5847831A (en) | Oil-pressure circuit for oil-pressure shovel | |
| KR100406278B1 (en) | hydrauric circuit of construction equipment | |
| KR101250083B1 (en) | Hydraulic control apparatus for a log loader excavator | |
| JPS5811232A (en) | Oil-pressure circuit for working machine | |
| JPH0751797B2 (en) | Backhoe hydraulic circuit |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| A201 | Request for examination | ||
| E902 | Notification of reason for refusal | ||
| E701 | Decision to grant or registration of patent right | ||
| REGI | Registration of establishment | ||
| FPAY | Annual fee payment |
Payment date: 19971226 Year of fee payment: 9 |
|
| LAPS | Lapse due to unpaid annual fee |