KR940008467B1 - Swing control device for excavator - Google Patents
Swing control device for excavator Download PDFInfo
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- KR940008467B1 KR940008467B1 KR1019900022380A KR900022380A KR940008467B1 KR 940008467 B1 KR940008467 B1 KR 940008467B1 KR 1019900022380 A KR1019900022380 A KR 1019900022380A KR 900022380 A KR900022380 A KR 900022380A KR 940008467 B1 KR940008467 B1 KR 940008467B1
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- mechanical brake
- valve
- excavator
- brake
- cpu
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- 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
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- Engineering & Computer Science (AREA)
- Mining & Mineral Resources (AREA)
- Civil Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Structural Engineering (AREA)
- Operation Control Of Excavators (AREA)
Abstract
Description
[발명의 명칭][Name of invention]
굴삭기의 회전제동 자동제어장치Excavator Rotational Braking Control System
[도면의 간단한 설명][Brief Description of Drawings]
제1도는 본 발명에 따른 회전제동 자동제어장치의 구성을 나타낸 블럭도,1 is a block diagram showing the configuration of the automatic rotation brake control apparatus according to the present invention,
제2도는 본 발명이 적용된 굴삭기의 선회모터부분을 도시한 개략적인 유압회로도,2 is a schematic hydraulic circuit diagram showing a turning motor portion of an excavator to which the present invention is applied;
제3도는 선회조작시의 조작레버와 브레이크와의 상호관계를 나타낸 그래프,3 is a graph showing the correlation between the operating lever and the brake during turning operation;
제4도는 본 발명의 실시예에 따른 제어방법을 단계별로 설명한 플로우챠트이다.4 is a flowchart illustrating step by step a control method according to an embodiment of the present invention.
* 도면의 주요부분에 대한 부호의 설명* Explanation of symbols for main parts of the drawings
1 : 선회조작레버 2 : CPU1: Swing operation lever 2: CPU
3 : 릴레이 4 : 솔레노이드밸브3: relay 4: solenoid valve
5 : 기계식 브레이크 6 : 온·오프밸브5: mechanical brake 6: on / off valve
7 : 선회모터 8 : 선회보조밸브7: Swivel motor 8: Swivel auxiliary valve
9 : 감속기어 M : 유압작동선회모터9: Reduction Gear M: Hydraulic Actuating Swivel Motor
[발명의 상세한 설명]Detailed description of the invention
산업상의 이용분야Industrial use
본 발명은 굴삭기회전부의 회전제동 자동제어장치에 관한 것으로, 굴삭기회전부를 제동시킬 때 필요한 제동력만을 인가함으로써 과도한 제동력에 의한 회전감속기어의 파손을 막을 수 있도록 된 제어장치에 관한 것이다.BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an automatic control device for rotating braking of an excavator rotation unit, and more particularly to a control device capable of preventing damage to a rotation reduction gear due to excessive braking force by applying only a braking force necessary for braking an excavator rotation unit.
종래의 기술 및 그 문제점Conventional Technology and Problems
종래의 굴삭기회전부의 회전제동장치는 작업자가 필요할 때마다 기계식 브레이크를 인가시키거나 해제하여야 했으므로, 작업성에 있어서 비능률적인 면이 있었을 뿐 아니라 기계식 브레이크가 인가되어 있는 상태에서 작업자가 굴삭기회전부를 선회시키려다가 회전감속기어가 파손되는 경우도 있었다.In the conventional rotary brake system of the excavator rotating part, the mechanical brake must be applied or released whenever the operator needs it. Therefore, there is an inefficient aspect of workability and the operator tries to turn the excavator rotating part while the mechanical brake is applied. In some cases, the reduction gear may be damaged.
또한, 경사진 작업지에서 작업을 할 경우에는 굴삭기회전부가 제동력을 이기고 미끄러져 회전하는 경우가 있어 사고의 위험도 많았다.In addition, when working on an inclined work site, the excavator rotating part may rotate by sliding over the braking force, thereby increasing the risk of an accident.
발명의 목적Purpose of the Invention
본 말명은 상기한 점을 감안하여 발명된 것으로, 선회동작시에나 선회동작의 정지시에 기계식 브레이트의 작동과 해제, 온·오프밸브의 온·오프제어를 자동적으로 실행함으로써 굴삭기회전부의 회전제동을 자동적으로 제어할 수 있는 제어장치를 제공함에 그 목적이 있다.The present invention has been invented in view of the above point, and the automatic braking of the rotary part of the excavator is automatically performed by automatically operating and releasing the mechanical brake and turning on / off the on / off valve during the turning operation or the stopping of the turning operation. The purpose is to provide a control device that can be controlled by.
발명의 구성Composition of the Invention
상기 목적을 달성하기 위한 본 발명은, 국삭기회전부의 선회동작을 조작하는 선회조작레버와; 이 선회조작레버로부터 입력된 신호에 대응하여 소정의 제어처리를 실행하는 CPU; 이 CPU로부터의 신호를 인가받아 솔레노이드밸브를 구동시키는 릴레이; 이 릴레이에 의해 구동되어 기계식 브레이크를 작동 또는 해제시키고, 온·오프밸브의 온·오프를 제어하는 상기 솔레노이드밸브를 구비하여 구성되어 있으면서, 선회동작시에는 기계식 브레이크를 해제함과 동시에 온·오프밸브를 온시켜 선회모터가 작동되도록 하고, 선회동작을 정지할 때에는 약 5초간 굴삭기회전부 자체유압의 반작용에 따른 제동력에 의해 감속되어진 후, 기계식 브레이크가 작동하도록 되어 있는 것을 특징으로 한다.The present invention for achieving the above object is a swing operation lever for operating the swinging operation of the rotating machine; A CPU which executes a predetermined control process in response to a signal input from the swing operation lever; A relay for receiving a signal from the CPU to drive the solenoid valve; The solenoid valve is driven by this relay to operate or release the mechanical brake, and to control the on / off valve on / off. The swing brake operation releases the mechanical brake and at the same time releases the on / off valve. When the turning motor is turned on, and the turning motion is stopped, the mechanical brake is operated after being decelerated by the braking force due to the reaction of the excavator rotating part's own hydraulic pressure for about 5 seconds.
[실시예]EXAMPLE
이하, 예시도면을참조하여 본 발명의 실시예를 상세히 설명한다.Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings.
제1도는 본 발명에 따른 회전제동 자동제어장치를 나타낸 블럭구성도이다. 도면중 참조부호 1은 선회조작레버, 2는 제어처리를 실행하는 CPU, 3은 상기 CPU(2)로부터의 신호에 대응하여 솔레노이드밸브(4)를 구동시키는 릴레이이다. 여기서, 솔레노이드밸브(4)는 상기 릴레이(3)에 의해 구동되어 기계식 브레이크(5)와 온·오프밸브(6)를 제어하는 것이고, 온·오프밸브(6)는 제2도에 도시된 유압작동선회모터(M)의 온·오프를 제어하는 밸브이다.1 is a block diagram showing an automatic rotation braking control apparatus according to the present invention. In the drawings, reference numeral 1 denotes a swing operation lever, 2 CPUs for performing control processing, and 3 relays for driving the solenoid valve 4 in response to a signal from the CPU 2. Here, the solenoid valve 4 is driven by the relay 3 to control the mechanical brake 5 and the on / off valve 6, and the on / off valve 6 is the hydraulic pressure shown in FIG. This valve controls on / off of the operating swing motor (M).
먼저, 선회조작레버(1)가 선회동작상태인 위치에 있을 때에는 기계식 브레이크(5)는 해제하고 온·오프밸브(6)는 온상태로 하여 굴삭기회전부가 선회하게 된다.First, when the swing operation lever 1 is in the swing operation position, the mechanical brake 5 is released and the on / off valve 6 is turned on so that the excavator rotating portion swings.
이때, 선회조작레버(1)가 중립위치에 오게 되면 굴삭기회전부는 제동상태로 되어야 하는데, 아직 굴삭기회전부가 선회동작을 하고 있는 상태에서 바로 기계식 브레이크(5)를 사용하여 제동력을 인가하면 기계식 브레이크(5)가 굴삭기회전부의 중량을 이기지 못해 파손되게 된다.At this time, when the turning operation lever 1 is in the neutral position, the excavator rotating part should be in a braking state. However, when the excavator rotating part is still in the rotating state, the mechanical brake 5 is used to apply the braking force and the mechanical brake ( 5) is not able to win the weight of the excavator rotating part will be damaged.
따라서, 본 발명에 따른 실시예에서는 이를 방지하기 위해 선회조작레버(1)가 중립위치에 오게 되면 그후 약 5초동안은 기계식 브레이크(5)로 제동시키지 않고, 굴삭기회전부자체의 유압반작용으로 인한 제동효과를 이용하여 감속시킨 다음 기계식 브레이크(51)로 제동시키는 제동방법을 채용하였다. 제2도는 이러한 본 발명에 따른 제어장치가 적용된 굴삭기의 선회모터부분을 도시한 개략적인 유압회로도이다.Therefore, in the embodiment according to the present invention, when the turning operation lever 1 comes to the neutral position to prevent it, the brake is not braked by the mechanical brake 5 for about 5 seconds, and the brake due to the hydraulic reaction of the excavator rotating body itself. The braking method was employed to decelerate using the effect and then brake with the mechanical brake 51. 2 is a schematic hydraulic circuit diagram showing a turning motor portion of an excavator to which the control device according to the present invention is applied.
제3도는 본 발명에 따른 실시예에서의 선회조작레버와 기계식 브레이크와의 동작관계를 그래프로 나타낸 것이다.3 is a graph showing the operating relationship between the swing control lever and the mechanical brake in the embodiment according to the present invention.
여기서, 선회조작레버(1)가 중립위치에 오게 되면 그로부터 약 5초 후에 기계식 브레이크(5)가 작동되고, 선회조작레버가 조작위치에 놓이게 되면 그로부터 0.1초내에 기계식 브레이크(5)가 해제되어야 한다.Here, when the swing control lever 1 is in the neutral position, the mechanical brake 5 is activated about 5 seconds thereafter, and when the swing control lever is placed in the operating position, the mechanical brake 5 should be released within 0.1 seconds therefrom. .
다음, 제4도의 플로우챠트를 참조하여 본 발명에 따른 회전제동 자동제어장치의 CPU(2)에 의한 제어방법을 설명한다. 먼저, 단계(ST1)에서 선회조작레버(1)가 중립위치→작동위치인지(즉, 출력값이 상승상태인지), 또는 작동위치→중립위치인지(즉, 출력값이 하강상태인지)를 검출하여 상승상태이면 단계(ST2)로, 하강상태이면 단계(ST3)로 처리를 이행한다.Next, a control method by the CPU 2 of the automatic rotation brake control apparatus according to the present invention will be described with reference to the flowchart of FIG. First, in step ST1, the turning operation lever 1 is raised by detecting whether the turning position lever 1 is in the neutral position → operating position (ie, the output value is in the rising state) or in the operating position → neutral position (ie, the output value is in the falling state). In the state, the processing proceeds to step ST2, and in the falling state, the process proceeds to step ST3.
다음, 단계(ST2)에서는 기계식 브레이크(5)를 해제시키고, 온·오프밸브를 온상태로 하여 유압작동선회모터가 동작되도록 한다. 한편, 단계(ST3)에서는 5초가 지나면 단계(ST4)로 처리를 이행하여 기계식 브레이크(5)를 작동시킴과 동시에 온·오프상태로 하게 된다.Next, in step ST2, the mechanical brake 5 is released, and the on / off valve is turned on to operate the hydraulic actuating swing motor. On the other hand, in step ST3, after 5 seconds have elapsed, the process proceeds to step ST4 to operate the mechanical brake 5 and to turn on and off.
발명의 효과Effects of the Invention
이상 설명한 바와 같이 본 발명에 따르면, 선회조작레버의 조작신호에 따라 굴삭기회전부의 회전제동이 자동적으로 작동 또는 해제되므로, 회전부의 미끄럼현상을 방지할 수 있고 장비의 안전사고발생 등을 방지할 수 있게 된다.As described above, according to the present invention, since the rotary braking of the excavator rotating part is automatically activated or released according to the operating signal of the turning operation lever, the sliding phenomenon of the rotating part can be prevented and the safety accident of the equipment can be prevented. do.
Claims (1)
Priority Applications (11)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR1019900022380A KR940008467B1 (en) | 1990-12-29 | 1990-12-29 | Swing control device for excavator |
| GB9411159A GB2276251B (en) | 1990-10-31 | 1991-10-17 | Control system for automatically controlling actuators of an excavator |
| GB9321159A GB2269918B (en) | 1990-10-31 | 1991-10-17 | Control system for automatically controlling actuators of an excavator |
| GB9122059A GB2250108B (en) | 1990-10-31 | 1991-10-17 | Control system for automatically controlling actuators of an excavator |
| FR919113224A FR2668516B1 (en) | 1990-10-31 | 1991-10-25 | CONTROL SYSTEM FOR AUTOMATICALLY CONTROLLING OPERATING MEANS OF AN EXCAVATOR. |
| US07/783,559 US5361211A (en) | 1990-10-31 | 1991-10-28 | Control system for automatically controlling actuators of an excavator |
| DE4136084A DE4136084C2 (en) | 1990-10-31 | 1991-10-30 | Method and device for controlling an excavator |
| ITMI912890A IT1251749B (en) | 1990-10-31 | 1991-10-30 | ADJUSTMENT SYSTEM FOR AUTOMATIC REGULATION OF EXCAVATOR ACTUATORS |
| FR9307010A FR2691186B1 (en) | 1990-10-31 | 1993-06-10 | CONTROL SYSTEM FOR AUTOMATICALLY CONTROLLING AN EXCAVATOR ACCORDING TO CONTROL LEVERS OR PEDALS. |
| FR9307011A FR2691187B1 (en) | 1990-10-31 | 1993-06-10 | METHOD FOR AUTOMATICALLY CONTROLLING THE EXCAVATOR ORIENTATION MOTOR. |
| FR939307005A FR2691185B1 (en) | 1990-10-31 | 1993-06-10 | Control system to automatically prevent overloading of an excavator. |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR1019900022380A KR940008467B1 (en) | 1990-12-29 | 1990-12-29 | Swing control device for excavator |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| KR920012677A KR920012677A (en) | 1992-07-27 |
| KR940008467B1 true KR940008467B1 (en) | 1994-09-15 |
Family
ID=19308876
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| KR1019900022380A KR940008467B1 (en) | 1990-10-31 | 1990-12-29 | Swing control device for excavator |
Country Status (1)
| Country | Link |
|---|---|
| KR (1) | KR940008467B1 (en) |
-
1990
- 1990-12-29 KR KR1019900022380A patent/KR940008467B1/en not_active IP Right Cessation
Also Published As
| Publication number | Publication date |
|---|---|
| KR920012677A (en) | 1992-07-27 |
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