KR960008840Y1 - Shock-absorbing control device for bucket of an excavator - Google Patents
Shock-absorbing control device for bucket of an excavator Download PDFInfo
- Publication number
- KR960008840Y1 KR960008840Y1 KR92022700U KR920022700U KR960008840Y1 KR 960008840 Y1 KR960008840 Y1 KR 960008840Y1 KR 92022700 U KR92022700 U KR 92022700U KR 920022700 U KR920022700 U KR 920022700U KR 960008840 Y1 KR960008840 Y1 KR 960008840Y1
- Authority
- KR
- South Korea
- Prior art keywords
- bucket
- boom
- boom cylinder
- proximity sensor
- ground
- Prior art date
Links
Classifications
-
- 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
- E02F3/28—Dredgers; 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
- E02F3/36—Component parts
- E02F3/42—Drives for dippers, buckets, dipper-arms or bucket-arms
- E02F3/43—Control of dipper or bucket position; Control of sequence of drive operations
- E02F3/431—Control of dipper or bucket position; Control of sequence of drive operations for bucket-arms, front-end loaders, dumpers or the like
-
- 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
- E02F9/226—Safety arrangements, e.g. hydraulic driven fans, preventing cavitation, leakage, overheating
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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)
- Component Parts Of Construction Machinery (AREA)
- Operation Control Of Excavators (AREA)
Abstract
내용 없음.No content.
Description
제1도는 본 고안에 의한 버킷 충격방지장치에 사용되는 전기회로도.1 is an electric circuit diagram used in the bucket impact preventing device according to the present invention.
제2도는 본 고안에 의한 솔레노이드 밸브의 개략도.2 is a schematic view of a solenoid valve according to the present invention.
제3도는 본 고안에 의한 버킷 충격방지장치의 작용상태도이다.3 is an operational state diagram of the bucket impact preventing device according to the present invention.
* 도면의 주요부분에 대한 부호의 설명* Explanation of symbols for main parts of the drawings
10 : 플레이트 12 : 붐(Boom)10 plate 12 boom
14 : 버킷 16 : 붐실린더14 bucket 16: boom cylinder
18 : 근접센서18: proximity sensor
본 고안은 휠로다(Whel Loader)및 스키드 로다(Skid Loader)의 버킷이 지면에 급작스럽게 접촉되는 것을 방지하기 위한 것으로, 더욱 상세하게는 붐과 붐실린더에 설치된 플레이트와 근접센서에 의해 지면에 근접되게 하강되는 버킷을 상기 센서가 감지하여 차단시킴으로서 운전자의 승차감과 장비의 내구성을 증대시킬 수 있도록 한 근접센서를 이용한 버킷 충격방지장치에 관한 것이다.The present invention is to prevent sudden contact of the bucket of the wheel loader and skid loader to the ground. More specifically, the plate and proximity sensors installed on the boom and the boom cylinder are close to the ground. The present invention relates to a bucket impact prevention device using a proximity sensor that can increase the driver's ride comfort and equipment durability by detecting and blocking a bucket that is lowered.
종래에는 버킷실린더로 오일이 공급되어 작동하게 되면 벨크랭크(Bell Crank)와 링크가 기구학적인 운동을 하여 버킷이 이동하게 되는 것이며, 휠로다와 스키드로다는 물체의 상, 하차 작업이 주작업이므로 버킷을 지면에 근접시켜 수평상태로 작업을 하게된다. 그러나, 붐실린더의 실린더로드의 작동으로 버킷에 적재된 내용물을 토출할 타장비의 높이까지 상승시킨 상태에서 덤프후 수평상태로 유지한 후, 운전자가 임의대로 조작하기 때문에 버킷이 지면에 대해 급작스럽게 접촉되어 발생되는 반복적인 충격 및 진동이 장비에 직접 전달되어 운전자의 승차감이 떨어져 작업의욕이 저하되며, 장비의 내구성이 떨어지는 것이었다.Conventionally, when oil is supplied to and operated by a bucket cylinder, the bell crank and the link are kinematic movements, and the bucket is moved. Work in a horizontal state by approaching the ground. However, the bucket is suddenly raised against the ground because the operator operates it arbitrarily after the dump is held up to the height of other equipment to discharge the contents loaded in the bucket by the operation of the cylinder rod of the boom cylinder. Repetitive shocks and vibrations caused by contact were transmitted directly to the machine, which reduced the driver's comfort and decreased work motivation.
본 고안은 상기와 같은 종래기술의 문제점을 감안하여 안출한 것으로, 본 고안의 목적은 붐실린더에 설치된 근접센서에 의해 붐실린더 로드의 수축으로 하강되는 버킷이 지면에 대해 급작스럽게 접촉되는 것을 방지하므로서 운전자의 승차감이 향상되 피로도를 줄이고 장비 및 작업장치의 수명을 연장시킬 수 있는 근접센서를 이용한 버킷 충격방지장치를 제공하는데 있는 것이다.The present invention has been made in view of the problems of the prior art as described above, an object of the present invention is to prevent the bucket is lowered due to the contraction of the boom cylinder rod by the proximity sensor installed in the boom cylinder to prevent sudden contact with the ground. It is to provide a bucket shock prevention device using a proximity sensor that can improve the driver's riding comfort, reduce fatigue and extend the life of equipment and work equipment.
상기와 같은 목적을 달성하기 위한 본 고안의 특징은 플레이트를 장착한 붐이 하강하여 버킷이 지면에 근접하는 경우 붐실린더에 형성된 근접센서가 이를 감지하여 붐실린더로 공급되는 오일을 차단시켜 버킷이 지면에 충돌되는 것을 방지하도록 된 것이다.A feature of the present invention for achieving the above object is that the proximity sensor formed on the boom cylinder detects this when the boom mounted on the plate is lowered and the bucket is approaching the ground, thereby blocking the oil supplied to the boom cylinder. This is to prevent the collision with.
이하, 본 고안에 의한 근접센서를 이용한 버킷 충격방지를 첨부된 도면을 참조하여 구체적으로 설명하면 다음과 같다.Hereinafter, with reference to the accompanying drawings, the bucket shock prevention using the proximity sensor according to the present invention will be described in detail.
제3도는 본 고안에 의한 버킷 충격방지장치의 작용상태도로서, 붐(12)에 플레이트(10)를 부착하고 붐실린더(16)에는 근접센서(18)를 장착시키되, 상기 플레이트(10)와 근접센서(18)는 붐(12)이 하강하여 버킷(14)이 지면에 근접되게 위치하는 경우 상호 대향되게 설치되며, 상기 근접센서(18)는 제1도에 도시된 붐실린더(16)의 오일을 단속하는 솔레노이드밸브(20)에 연결시킨다.3 is an operation state diagram of the bucket impact preventing device according to the present invention, the plate 10 is attached to the boom 12 and the proximity sensor 18 is mounted on the boom cylinder 16, but close to the plate 10 The sensors 18 are installed to face each other when the boom 12 is lowered and the bucket 14 is located close to the ground, and the proximity sensors 18 are oil of the boom cylinder 16 shown in FIG. Is connected to the solenoid valve 20 to control.
따라서, 붐(12)에 장착된 플레이트(10)가 붐(12)의 하강에 의해 붐실린더(16)에 장착된 근접센서(18)에 접근하게 되며, 붐실린더(16)로 통하는 유로를 차단하여 붐(12)이 더 이상 하강하지 못해 버킷(14)이 지면에 충돌하는 것을 방지해 주게된다.Therefore, the plate 10 mounted on the boom 12 approaches the proximity sensor 18 mounted on the boom cylinder 16 by the lowering of the boom 12, and blocks the flow path through the boom cylinder 16. The boom 12 is no longer lowered to prevent the bucket 14 from colliding with the ground.
상기와 같이 형성된 본 고안에 의한 버킷 충격방지장치의 작용 및 효과를 설명하면, 제2도에 도시된 작업레버(22)를 움직여 스풀(Spool)을 좌측으로 이동시키면 붐실린더(16)가 작동함에 따라 붐(12), 벨 크랭크(24), 링크(26), 버킷(14)이 기구학적으로 동작하게 되며, 붐(12)이 프론트 프레임(28)에 고정된 고정핀(30)을 힌지점으로 회동하게 되는 것이다.Referring to the operation and effect of the bucket impact preventing device according to the present invention formed as described above, by moving the work lever 22 shown in Figure 2 to move the spool (Spool) to the left to the boom cylinder (16) operates Accordingly, the boom 12, the bell crank 24, the link 26, and the bucket 14 operate mechanically, and the boom 12 hinges the fixing pin 30 fixed to the front frame 28. Will be rotated to.
이때, 제1도에 도시된 회로도와 같이 회로가 항상 ON위치에서 솔레노이드 밸브(20)가 작동하고 있어 작업레버(22)를 손으로 계속 움켜잡고 있지 않아도 전원이 OFF되지 않으면 자기적 영향에 의해 스풀이 원상복귀(중립상태)하지 않게된다. 그리고, 붐(12)이 붐실린더(16)의 수축으로 하강하여 붐(12)에 장칙된 플레이트(10)가 붐실린더(16)에 부착된 근접센서(18)에 감지되면 릴레이(32)에 의하여 스위치가 OFF위치(A)로 움직여 전원이 단절되어 솔레노이드밸브(20)의 자력이 없어진다. 따라서, 제2도의 스풀이 스프링(34)이 탄력에 의해 중립상태로 위치하여 붐실린더(16)의 작동을 정지시켜 붐(12)이 더 이상 하강하지 않아 버킷(124이 지면에 접촉됨이 방지된다.At this time, the solenoid valve 20 is always operated in the ON position as shown in the circuit diagram shown in FIG. 1, and the power is not turned off even if the work lever 22 is not held by hand. This will not return to normal. When the boom 12 is lowered due to the contraction of the boom cylinder 16 and the plate 10 attached to the boom 12 is detected by the proximity sensor 18 attached to the boom cylinder 16, the relay 32 is applied to the relay 32. As a result, the switch moves to the OFF position (A) so that the power is disconnected and the magnetic force of the solenoid valve 20 is lost. Accordingly, the spool of FIG. 2 prevents the bucket 124 from contacting the ground because the spring 34 is placed in a neutral state by the elasticity to stop the operation of the boom cylinder 16 so that the boom 12 no longer descends. do.
이상에서와 같이 본 고안에 의한 버킷 충격방지장치는 플레이트를 장착한 붐이 하강하여 버킷이 지면에 근접하는 경우 붐실린더에 형성된 근접센서가 이를 감지하여 붐실린더로 공급되는 오일을 차단시켜 버킷이 지면에 충돌되는 것을 방지하도록 된 것으로, 붐실린더에 부착된 근접센서에 의해 붐의 하강으로 버킷이 지면에 급작스럽게 접촉됨이 방지됨으로서, 운전자의 승차감이 향성되 작업능률이 오르고, 장비에 전달되는 충격을 방지하여 장비 및 작업장치의 내구성을 증대시켜 수명을 시킬 수 있는 것이다.As described above, in the bucket impact preventing device according to the present invention, when the boom mounted with the plate descends and the bucket approaches the ground, the proximity sensor formed on the boom cylinder detects this and blocks the oil supplied to the boom cylinder, thereby preventing the bucket from grounding. It is designed to prevent the vehicle from colliding with the boom cylinder, and the proximity sensor attached to the boom cylinder prevents the bucket from suddenly contacting the ground due to the lowering of the boom, thereby enhancing the driver's riding comfort and improving work efficiency. By preventing the increase of the durability of the equipment and work equipment will be able to extend the life.
Claims (1)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR92022700U KR960008840Y1 (en) | 1992-11-18 | 1992-11-18 | Shock-absorbing control device for bucket of an excavator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR92022700U KR960008840Y1 (en) | 1992-11-18 | 1992-11-18 | Shock-absorbing control device for bucket of an excavator |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| KR940012714U KR940012714U (en) | 1994-06-22 |
| KR960008840Y1 true KR960008840Y1 (en) | 1996-10-10 |
Family
ID=19344193
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| KR92022700U KR960008840Y1 (en) | 1992-11-18 | 1992-11-18 | Shock-absorbing control device for bucket of an excavator |
Country Status (1)
| Country | Link |
|---|---|
| KR (1) | KR960008840Y1 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2013066803A1 (en) * | 2011-11-02 | 2013-05-10 | Caterpillar Inc. | Machine, control system and method for hovering an implement |
-
1992
- 1992-11-18 KR KR92022700U patent/KR960008840Y1/en not_active IP Right Cessation
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2013066803A1 (en) * | 2011-11-02 | 2013-05-10 | Caterpillar Inc. | Machine, control system and method for hovering an implement |
| US8843282B2 (en) | 2011-11-02 | 2014-09-23 | Caterpillar Inc. | Machine, control system and method for hovering an implement |
Also Published As
| Publication number | Publication date |
|---|---|
| KR940012714U (en) | 1994-06-22 |
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