WO2015190631A1 - Operating apparatus for construction equipment - Google Patents

Operating apparatus for construction equipment Download PDF

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Publication number
WO2015190631A1
WO2015190631A1 PCT/KR2014/005168 KR2014005168W WO2015190631A1 WO 2015190631 A1 WO2015190631 A1 WO 2015190631A1 KR 2014005168 W KR2014005168 W KR 2014005168W WO 2015190631 A1 WO2015190631 A1 WO 2015190631A1
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WO
WIPO (PCT)
Prior art keywords
switch
joystick
work device
state
operating
Prior art date
Application number
PCT/KR2014/005168
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French (fr)
Korean (ko)
Inventor
주성용
Original Assignee
볼보 컨스트럭션 이큅먼트 에이비
주성용
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.)
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Application filed by 볼보 컨스트럭션 이큅먼트 에이비, 주성용 filed Critical 볼보 컨스트럭션 이큅먼트 에이비
Priority to PCT/KR2014/005168 priority Critical patent/WO2015190631A1/en
Publication of WO2015190631A1 publication Critical patent/WO2015190631A1/en

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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
    • G—PHYSICS
    • G05—CONTROLLING; REGULATING
    • G05G—CONTROL DEVICES OR SYSTEMS INSOFAR AS CHARACTERISED BY MECHANICAL FEATURES ONLY
    • G05G9/00—Manually-actuated control mechanisms provided with one single controlling member co-operating with two or more controlled members, e.g. selectively, simultaneously
    • G05G9/02—Manually-actuated control mechanisms provided with one single controlling member co-operating with two or more controlled members, e.g. selectively, simultaneously the controlling member being movable in different independent ways, movement in each individual way actuating one controlled member only
    • G05G9/04—Manually-actuated control mechanisms provided with one single controlling member co-operating with two or more controlled members, e.g. selectively, simultaneously the controlling member being movable in different independent ways, movement in each individual way actuating one controlled member only in which movement in two or more ways can occur simultaneously
    • G05G9/047—Manually-actuated control mechanisms provided with one single controlling member co-operating with two or more controlled members, e.g. selectively, simultaneously the controlling member being movable in different independent ways, movement in each individual way actuating one controlled member only in which movement in two or more ways can occur simultaneously the controlling member being movable by hand about orthogonal axes, e.g. joysticks

Definitions

  • the present invention relates to a construction machine, and more particularly, to a construction machine operating device for driving a work device or a dozer blade of an excavator.
  • the dozer blade is mounted upside down by the hydraulic cylinder drive behind the undercarriage of the excavator.
  • the dozer blade can easily perform a back-filling or flattening of soil, earth and sand, and is used to optimally maintain equipment balance during operation.
  • a hydraulic cylinder 1 for a work device and a hydraulic cylinder 2 for a doser blade are driven by a hydraulic oil supplied therefrom to a hydraulic pump (not shown).
  • Main control valve (MCV) 3 is installed to control the flow direction of the hydraulic oil supplied to 1,2).
  • a joystick 4 for a work device and an operation lever 5 for a dozer blade that output an operation signal corresponding to the operation amount are connected to the main control valve 3.
  • the main control valve 3 is driven by the pilot signal pressure from the pilot pump (not shown) via the joystick 4 for the work device to correspond to the manipulation amount. Change the spool for the work tool.
  • the hydraulic cylinder 1 for the work device can be driven by the hydraulic oil passing through the spool for the work device discharged from the hydraulic pump and switched.
  • the doser spool of the main control valve 3 by the pilot signal pressure from the pilot pump via the dozer blade operating lever 5 to correspond to the operation amount. Switch to.
  • the hydraulic cylinder 2 for the doser blade can be driven by the hydraulic oil passing through the dosing spool discharged from the hydraulic pump and switched.
  • the operation lever 5 for the dozer blade is used to be mounted on the left side or the right side around the driver's seat. In this case, it is difficult to secure and arrange a space to prevent interference with joysticks for work devices mounted on the left and right sides of the driver's seat.
  • the mounting position of the dozer blade operating lever 5 is determined to be equal to the left or right side of the driver's seat for each equipment model. For this reason, even if the mounting position of the said dozer blade operating lever 5 does not meet customer requirements, a customer cannot change the mounting position of the dozer blade operating lever 5. Therefore, there is a disadvantage that can not actively respond to customer requirements.
  • the length of the operation lever 5 for the dozer blade is long has a disadvantage that can be broken or noise is generated due to frequent collisions with the driver in the narrow cab.
  • an object of the present invention is to provide an operating device for a construction machine, which requires no space for separately installing an operation lever for a dozer blade of an excavator in a cab.
  • an object of the present invention is to provide an operating device for a construction machine in which a customer can arbitrarily select a mounting position of an operating lever for operating a doser blade.
  • an object of the present invention is to provide an operating device for a construction machine that can prevent the malfunction of the dozer blade due to the carelessness of the driver during the operation.
  • the main pump is installed in the flow path between the hydraulic pump and the hydraulic cylinder for the working device and the flow path between the hydraulic pump and the hydraulic cylinder for the dozer blade, and controls the driving of the hydraulic cylinder for the working device or the hydraulic cylinder for the dozer blade during the switching.
  • Control valve
  • a joystick for a work device for outputting an operation signal corresponding to the operation amount
  • a first switch mounted at an arbitrary position of the joystick for the work device and operated in an on state to drive the doser blade;
  • the doser blade When the first switch is operated in an on state, the doser blade is driven by operating the joystick for the work device, and when the first switch is maintained in the off state, the work device is operated by operating the joystick for the work device. It provides a control device for a construction machine comprising a; the first selection valve to be switched to.
  • the working device When the electrical signal is switched on from the second switch and the first switch is kept in the off state, the working device is driven by the joystick operation for the working device, and the electrical signal is applied from the second switch. And a second selection valve switched to drive the doser blade by operating the joystick for the work device when the switch is switched to the on state and the first switch is operated in the on state.
  • the second selection valve is
  • the solenoid valve is switched to the on state to selectively drive the doser blade or the work device according to the on or off state of the first switch.
  • the second selection valve is
  • the first selection valve is
  • the solenoid switched to the on state to selectively drive the doser blade or the work device when operating the joystick for the work device according to the on state or the off state of the first switch. It is characterized in that the valve.
  • an instrument panel mounted inside the cab to display a selected working mode of the work device or the dozer blade driven by the operation of the joystick for the work device.
  • the boom and the dozer blade are driven up / down by the first selection valve.
  • the arm in / out and the doser blade are driven up / down by the first selection valve. It is characterized by.
  • the present invention having the above-described configuration, it is possible to operate the working device or the dozer blade by the joystick for the working device, so it is not necessary to install the operating lever for the dozer blade, so that the limited space of the cab cap is utilized effectively.
  • the mounting position of the operating lever for manipulating the doser blade (which refers to the left or right direction of the driver's seat) can be arbitrarily selected by the customer, thereby providing reliability and convenience. It is possible to prevent the malfunction of the doser blade due to the carelessness of the driver during work, thereby ensuring the safety.
  • Figure 2 is a state of use of the operating device for a construction machine according to a preferred embodiment of the present invention
  • FIG. 3 is a hydraulic circuit diagram showing that only the working device is driven by the operation of the joystick for the working device in the operating device for a construction machine according to a preferred embodiment of the present invention
  • FIG. 4 is a hydraulic circuit diagram showing that the operating device can be driven by the operation of the joystick for the working device in the operating device for a construction machine according to an embodiment of the present invention
  • FIG. 5 is a hydraulic circuit diagram showing that the dozer blade can be driven by the operation of the joystick for the working device in the operating device for a construction machine according to a preferred embodiment of the present invention.
  • Figure 2 is a state diagram using a construction machine operating apparatus according to a preferred embodiment of the present invention
  • Figure 3 is a construction machine operating apparatus according to a preferred embodiment of the present invention, only the working apparatus by the operation of the joystick for the working apparatus
  • Figure 4 is a hydraulic circuit diagram showing driving
  • Figure 4 is a hydraulic circuit diagram showing that the operating device can be driven by the operation of the joystick for the working device in the operating device operating apparatus according to a preferred embodiment of the present invention
  • Figure 5 In a construction machine operating apparatus according to a preferred embodiment of the present invention, it is a hydraulic circuit diagram showing that the dozer blade can be driven by the operation of the joystick for the working apparatus.
  • a construction machine operating apparatus for the hydraulic cylinder (1) and the dozer blade for the working device driven by the hydraulic oil supplied therefrom to a hydraulic pump (not shown)
  • the hydraulic cylinder 2 is connected.
  • the hydraulic cylinder (1) for the working device In the flow path between the hydraulic pump and the hydraulic cylinder (1) for the working device, and the flow path between the hydraulic pump and the hydraulic cylinder (2) for the doser blade, the hydraulic cylinder (1) for the working device when switching the spool (spool) and A main control valve (MCV) 3 is installed to control the flow direction of the hydraulic oil supplied to the hydraulic cylinder 2 for the doser blade.
  • MCV main control valve
  • a joystick 4 for a work device for outputting an operation signal corresponding to the operation amount is connected to the main control valve 3.
  • a first switch 6 operated in the ON state for driving the doser blade is mounted at an arbitrary position of the joystick 4 for the work device.
  • a second selection valve 8 for driving only the work device when operating the joystick 4 for the work device is used for the work device.
  • a flow path between the joystick 4 and the first selection valve 7 is provided.
  • the second selection valve 8 is capable of driving the work device by operating the joystick 4 for the work device when the first switch 6 is kept in the OFF state. It is switched to the ON state by applying an electrical signal from the switch 9.
  • the second selection valve 8 may drive the doser blade by operating the joystick 4 for the work device when the first switch 6 is operated in an ON state.
  • the switch is switched to the ON state by applying an electrical signal from the switch 9.
  • a solenoid valve switched to the ON state to selectively drive the doser blade or the work device according to the ON state or the OFF state of the switch 6 may be used.
  • the first switch 6 is turned ON and the joystick 4 for the work device is operated. It can be used to block the supply of hydraulic oil to the hydraulic cylinder (2) for the doser blade.
  • the first selection valve 7 is
  • the dozer blade when operating the joystick (4) for the work device according to the ON (ON) state or OFF (OFF) state of the first switch (6)
  • a solenoid valve that is switched on to selectively drive the work tool may be used.
  • Instrument panel for displaying the selected working mode (referring to the working mode or dozer blade mode) of the working device or the dozer blade driven by the operation of the joystick for work tool (4) It may be mounted inside).
  • the boom and the dozer are controlled by the first selection valve 7.
  • the blades UP / DOWN In order to drive the dozer blade by operating the joystick 4 for the work device mounted on the right side of the driver's seat and equipped with the first switch 6, the boom and the dozer are controlled by the first selection valve 7.
  • the blades UP / DOWN In order to drive the dozer blade by operating the joystick 4 for the work device mounted on the right side of the driver's seat and equipped with the first switch 6, the boom and the dozer are controlled by the first selection valve 7.
  • the blades UP / DOWN In order to drive the dozer blade by operating the joystick 4 for the work device mounted on the right side of the driver's seat and equipped with the first switch 6, the boom and the dozer are controlled by the first selection valve 7.
  • the blades UP / DOWN In order to drive the dozer blade by operating the joystick 4 for the work device mounted on the right side of the driver's seat and equipped with the first switch 6, the boom and the dozer are controlled by the
  • the arm in ( The IN / OUT and the doser blades can be driven up / down.
  • the second selection valve 8 is separated from the second switch 9. Since no electrical signal is applied, the initial state is maintained by the elastic force of the valve spring 8a.
  • the operation signal by the operation of the joystick 4 for the working device is transmitted to the main control valve 3 via the second selection valve 8, thereby switching the spool 3a for the working device.
  • the hydraulic oil of the hydraulic pump (not shown) is supplied to the hydraulic cylinder 1 for the working device via the switched work device spool 3a. Therefore, the work device can be raised (UP) or down (DOWN).
  • the instrument panel displays a working device mode indicating that the working device is being driven.
  • the operation device joystick 4 is operated when the second selection valve 8 is operated.
  • the spool 3a is switched. Therefore, it is possible to drive only the working device by driving the hydraulic cylinder 1 for the working device by the hydraulic oil of the hydraulic pump.
  • the hydraulic cylinder 2 for the doser blade is held. It can't be driven. That is, by preventing confusion between the working device and the dozer blade, it is possible to prevent the malfunction of the doser blade.
  • the operation signal by the operation of the joystick (4) for the work device is transmitted to the main control valve (3) via the second selection valve 8 and the first selection valve (7) Switch the spool 3a.
  • the hydraulic oil of the hydraulic pump is supplied to the hydraulic cylinder 1 for the working apparatus via the switched work apparatus spool 3a, thereby bringing up or down the working apparatus.
  • the instrument panel is displayed (stand by) to drive the doser blade.
  • the operation signal by the operation of the joystick 4 for the work device is transmitted to the main control valve 3 via the second selection valve 8 and the first selection valve 7, so that the doser The blade spool 3b is switched.
  • the hydraulic oil of the hydraulic pump is supplied to the hydraulic cylinder for the dozer blade (2) via the switched dozer blade spool (3b). Therefore, the doser blade can be raised (UP) or down (DOWN). In this case, the instrument panel displays a doser blade mode informing that the dozer blade is being driven.
  • the first switch 6 When the work device is to be driven while working by driving the doser blade, the first switch 6 is operated in an OFF state. This makes it possible to stop the drive of the doser blade and to switch to the work mode that can drive the work tool. That is, the doser blade can be easily switched to a driving state or a stationary state by an ON operation or an OFF operation of the first switch 6.
  • the user can arbitrarily select the mounting position of the joystick 4 for the working device on which the first switch 6 for driving the doser blade is mounted. That is, when the user selects the model name of the equipment on which the work device joystick 4 is mounted on the right side of the driver's seat, the user operates the first switch 6 mounted on the work device joystick 4 mounted on the right side of the driver's seat. The doser blade can be driven. At this time, the first selection valve 7 is set in advance when assembling the equipment so that the up / down of the boom and the up / down drive of the dozer blade.
  • the first switch 6 mounted on the work device joystick 4 mounted on the left side of the driver's seat is operated.
  • the doser blade may be driven.
  • the first selection valve 7 is set in advance when assembling the equipment to drive the in (in) / out (out) and the doser blade of the arm (UP) / (DOWN).
  • a space for separately installing the dozer blade operating lever in the cab is unnecessary.
  • the customer can arbitrarily select the mounting position of the operation lever for operating the doser blade.

Abstract

Disclosed is an operating apparatus for construction equipment that operates a working device or a dozer blade. The operating apparatus for construction equipment, according to the present invention, comprises: a hydraulic cylinder for a working device and a hydraulic cylinder for a dozer blade; a main control valve that controls to actuate the hydraulic cylinder for the working device or the hydraulic cylinder for the dozer blade while switching; a joystick for the working device; a first switch mounted at an arbitrary location of the joystick for the working device and turned on to actuate the dozer blade; and a first selection valve that is switched in order to actuate the dozer blade by operating the joystick for the working device when the first switch is turned on and to actuate the working device by operating the joystick for the working device when the first switch is maintained in a turned-off state.

Description

건설기계용 조작장치Controls for Construction Machinery
본 발명은 건설기계에 관한 것으로, 보다 구체적으로 설명하면, 굴삭기의 작업장치 또는 도저 블레이드(dozer blade)를 구동하기 위한 건설기계용 조작장치에 관한 것이다.The present invention relates to a construction machine, and more particularly, to a construction machine operating device for driving a work device or a dozer blade of an excavator.
굴삭기의 하부주행체 뒷쪽에 도저 블레이드가 유압실린더 구동에 의해 업 또는 다운 가능하게 장착되어 있다. 상기 도저 블레이드는 되메우기 또는 흙, 토사 등을 평탄하게 고르는 작업을 용이하게 수행할 수 있고, 작업중 장비 균형을 최적으로 유지하기 위해 사용되고 있다.The dozer blade is mounted upside down by the hydraulic cylinder drive behind the undercarriage of the excavator. The dozer blade can easily perform a back-filling or flattening of soil, earth and sand, and is used to optimally maintain equipment balance during operation.
도 1에 도시된 종래 기술에 의한 건설기계용 조작장치는,Construction apparatus operating apparatus according to the prior art shown in Figure 1,
유압펌프(미도시됨)에 이로부터 공급되는 작동유에 의해 구동되는 작업장치용 유압실린더(1) 및 도저 블레이드용 유압실린더(2)가 연결된다.A hydraulic cylinder 1 for a work device and a hydraulic cylinder 2 for a doser blade are driven by a hydraulic oil supplied therefrom to a hydraulic pump (not shown).
상기 유압펌프와 작업장치용 유압실린더(1)사이의 유로와, 상기 유압펌프와 도저 블레이드용 유압실린더(2)사이의 유로에, 스풀(spool) 절환시 상기 작업장치 및 도저 블레이드용 유압실린더(1,2)에 공급되는 작동유의 흐름방향을 제어하는 메인 컨트롤밸브(MCV)(3)가 설치된다.In the flow path between the hydraulic pump and the hydraulic cylinder (1) for the working device, and the flow path between the hydraulic pump and the hydraulic cylinder (2) for the doser blade, the hydraulic cylinder for the working device and the dozer blade when the spool is switched ( Main control valve (MCV) 3 is installed to control the flow direction of the hydraulic oil supplied to 1,2).
조작량에 대응되게 조작신호를 출력하는 작업장치용 조이스틱(4) 및 도저 블레이드용 조작레버(5)가 상기 메인 컨트롤밸브(3)에 연결된다.A joystick 4 for a work device and an operation lever 5 for a dozer blade that output an operation signal corresponding to the operation amount are connected to the main control valve 3.
따라서, 상기 작업장치용 조이스틱(4)을 조작하는 경우, 조작량에 대응되게 파일럿펌프(미도시됨)로부터 작업장치용 조이스틱(4)을 경유하는 파일럿신호압에 의해 상기 메인 컨트롤밸브(3)의 작업장치용 스풀을 절환시킨다. 이로 인해 상기 유압펌프로부터 토출되어 절환된 상기 작업장치용 스풀을 통과하는 작동유에 의해 상기 작업장치용 유압실린더(1)를 구동시킬 수 있다.Accordingly, when operating the joystick 4 for the work device, the main control valve 3 is driven by the pilot signal pressure from the pilot pump (not shown) via the joystick 4 for the work device to correspond to the manipulation amount. Change the spool for the work tool. Thus, the hydraulic cylinder 1 for the work device can be driven by the hydraulic oil passing through the spool for the work device discharged from the hydraulic pump and switched.
한편, 상기 도저 블레이드용 조작레버(5)를 조작하는 경우, 조작량에 대응되게 파일럿펌프로부터 도저 블레이드용 조작레버(5)를 경유하는 파일럿신호압에 의해 상기 메인 컨트롤밸브(3)의 도저용 스풀을 절환시킨다. 이로 인해 상기 유압펌프로부터 토출되어 절환된 상기 도저용 스풀을 통과하는 작동유에 의해 상기 도저 블레이드용 유압실린더(2)를 구동시킬 수 있다.On the other hand, when operating the dozer blade operating lever 5, the doser spool of the main control valve 3 by the pilot signal pressure from the pilot pump via the dozer blade operating lever 5 to correspond to the operation amount. Switch to. Thus, the hydraulic cylinder 2 for the doser blade can be driven by the hydraulic oil passing through the dosing spool discharged from the hydraulic pump and switched.
상기 도저 블레이드용 조작레버(5)는 운전석 주변의 좌측 또는 우측에 장착되어 사용된다. 이경우 운전석 주변의 좌측 및 우측에 장착되는 작업장치용 조이스틱과 간섭현상을 방지하기 위한 공간확보 및 배치가 어렵게 된다.The operation lever 5 for the dozer blade is used to be mounted on the left side or the right side around the driver's seat. In this case, it is difficult to secure and arrange a space to prevent interference with joysticks for work devices mounted on the left and right sides of the driver's seat.
상기 도저 블레이드용 유압실린더(2)를 구동하기 위해 작업장치용 조이스틱에 전기스위치를 추가하여 장착하는 경우, 상기 조이스틱에 소정의 제어성능을 만족시키는 스위치기능을 추가해야 되는 어려움이 발생될 수 있다.When the electric switch is added to the joystick for the working device to drive the hydraulic cylinder 2 for the doser blade, it may be difficult to add a switch function that satisfies a predetermined control performance to the joystick.
또한, 상기 도저 블레이드용 조작레버(5)는 장비의 레이아웃 특성상 위치가 결정되면, 장비 모델별로 운전석의 좌측 또는 우측에 도저 블레이드용 조작레버(5)의 장착위치가 동일하게 결정된다. 이로 인해 상기 도저 블레이드용 조작레버(5)의 장착위치가 고객의 요구조건에 맞지 앉는 경우에도, 고객이 도저 블레이드용 조작레버(5)의 장착위치를 변경할 수 없다. 따라서 고객의 요구조건에 능동적으로 대응할 수 없는 단점을 갖는다.In addition, when the position of the dozer blade operating lever 5 is determined due to the layout characteristics of the equipment, the mounting position of the dozer blade operating lever 5 is determined to be equal to the left or right side of the driver's seat for each equipment model. For this reason, even if the mounting position of the said dozer blade operating lever 5 does not meet customer requirements, a customer cannot change the mounting position of the dozer blade operating lever 5. Therefore, there is a disadvantage that can not actively respond to customer requirements.
한편, 소형 굴삭기의 경우, 상기 도저 블레이드용 조작레버(5)의 길이가 길게 되어 협소한 운전실캡 내의 운전자와 잦은 충돌로 인해 파손되거나 또는 소음이 발생될 수 있는 단점을 갖는다.On the other hand, in the case of a small excavator, the length of the operation lever 5 for the dozer blade is long has a disadvantage that can be broken or noise is generated due to frequent collisions with the driver in the narrow cab.
따라서, 본 발명은 전술한 문제점을 해결하고자 하는 것으로, 굴삭기의 도저 블레이드용 조작레버를 운전실캡 내에 별도로 설치하기 위한 공간이 불필요하게 되는 건설기계용 조작장치를 제공하는 것을 목적으로 한다.Accordingly, an object of the present invention is to provide an operating device for a construction machine, which requires no space for separately installing an operation lever for a dozer blade of an excavator in a cab.
또한, 도저 블레이드를 조작하는 조작레버의 장착위치를 고객이 임의로 선택할 수 있는 건설기계용 조작장치를 제공하는 것을 목적으로 한다.In addition, an object of the present invention is to provide an operating device for a construction machine in which a customer can arbitrarily select a mounting position of an operating lever for operating a doser blade.
또한, 작업중 운전자의 부주의로 인한 도저 블레이드의 오동작을 방지할 수 있는 건설기계용 조작장치를 제공하는 것을 목적으로 한다.In addition, an object of the present invention is to provide an operating device for a construction machine that can prevent the malfunction of the dozer blade due to the carelessness of the driver during the operation.
상기 및 기타 본 발명의 목적을 달성하기 위한 본 발명의 일 실시예에 따르면, 유압펌프의 작동유에 의해 구동되는 작업장치용 유압실린더 및 도저 블레이드용 유압실린더;According to an embodiment of the present invention for achieving the above and other objects of the present invention, a hydraulic cylinder for the working device and a hydraulic cylinder for the doser blade driven by the operating oil of the hydraulic pump;
상기 유압펌프와 작업장치용 유압실린더사이의 유로 및 상기 유압펌프와 도저 블레이드용 유압실린더사이의 유로에 설치되고, 절환시 상기 작업장치용 유압실린더 또는 도저 블레이드용 유압실리더의 구동을 제어하는 메인 컨트롤밸브;The main pump is installed in the flow path between the hydraulic pump and the hydraulic cylinder for the working device and the flow path between the hydraulic pump and the hydraulic cylinder for the dozer blade, and controls the driving of the hydraulic cylinder for the working device or the hydraulic cylinder for the dozer blade during the switching. Control valve;
조작량에 대응되게 조작신호를 출력하는 작업장치용 조이스틱;A joystick for a work device for outputting an operation signal corresponding to the operation amount;
상기 작업장치용 조이스틱의 임의의 위치에 장착되고, 상기 도저 블레이드를 구동시키기 위해 온 상태로 조작되는 제1스위치; 및A first switch mounted at an arbitrary position of the joystick for the work device and operated in an on state to drive the doser blade; And
상기 제1스위치가 온 상태로 조작될 경우 상기 작업장치용 조이스틱을 조작하여 상기 도저 블레이드를 구동시키고, 상기 제1스위치가 오프 상태로 유지될 경우 상기 작업장치용 조이스틱을 조작하여 상기 작업장치를 구동시키기 위해 절환되는 제1선택밸브;를 구비하는 것을 특징으로 하는 건설기계용 조작장치를 제공한다.When the first switch is operated in an on state, the doser blade is driven by operating the joystick for the work device, and when the first switch is maintained in the off state, the work device is operated by operating the joystick for the work device. It provides a control device for a construction machine comprising a; the first selection valve to be switched to.
상기 작업장치용 조이스틱과 상기 제1선택밸브사이의 유로에 설치되고,Is installed in the flow path between the joystick for the work device and the first selection valve,
제2스위치로부터 전기적신호가 인가되지않아 초기 상태로 유지될 경우 상기 작업장치용 조이스틱을 조작시 상기 작업장치만을 구동시키고,When the electrical signal is not applied from the second switch and is maintained in the initial state, only the working device is driven when the joystick for working device is operated.
상기 제2스위치로부터 전기적신호가 인가되어 온 상태로 절환되고 상기 제1스위치가 오프 상태로 유지될 경우 상기 작업장치용 조이스틱 조작에 의해 상기 작업장치를 구동시키고, 상기 제2스위치로부터 전기적신호가 인가되어 온 상태로 절환되고 상기 제1스위치가 온 상태로 조작될 경우 상기 작업장치용 조이스틱 조작에 의해 상기 도저 블레이드를 구동시키기 위해 절환되는 제2선택밸브를 구비하는 것을 특징으로 한다.When the electrical signal is switched on from the second switch and the first switch is kept in the off state, the working device is driven by the joystick operation for the working device, and the electrical signal is applied from the second switch. And a second selection valve switched to drive the doser blade by operating the joystick for the work device when the switch is switched to the on state and the first switch is operated in the on state.
상기 제2선택밸브는The second selection valve is
상기 제2스위치로부터 전기적신호가 인가되지않아 상기 작업장치용 조이스틱을 조작시 상기 작업장치만을 구동시키도록 하는 초기 상태와,An initial state in which an electric signal is not applied from the second switch so that only the work device is driven when the joystick for the work device is operated;
상기 제2스위치로부터 전기적 신호가 인가될 경우, 상기 제1스위치의 온 상태 또는 오프 상태에 따라 상기 도저 블레이드 또는 작업장치를 선택적으로 구동시키기 위해 온 상태로 절환되는 솔레노이드밸브인 것을 특징으로 한다.When the electrical signal is applied from the second switch, it is characterized in that the solenoid valve is switched to the on state to selectively drive the doser blade or the work device according to the on or off state of the first switch.
상기 제2선택밸브는The second selection valve is
상기 제2스위치로부터 전기적신호가 인가되지않아 초기상태를 유지하는 경우, 상기 제1스위치를 온 상태로 조작하고 상기 작업장치용 조이스틱을 조작하는 경우에도 상기 도저 블레이드용 유압실린더에 작동유 공급되는 것을 차단시키도록 사용되는 것을 특징으로 한다.When the electrical signal is not applied from the second switch and maintains the initial state, even when the first switch is turned on and the joystick for the work device is operated, the supply of hydraulic oil to the doser blade hydraulic cylinder is blocked. It is characterized in that it is used to.
상기 제1선택밸브는The first selection valve is
상기 제1스위치가 조작되지않아 초기상태를 유지하는 경우 상기 작업장치용 조이스틱을 조작시 상기 작업장치만을 구동시키도록 하는 초기상태와,An initial state of driving only the work device when operating the joystick for the work device when the first switch is not operated to maintain the initial state;
상기 제1스위치로부터 전기적 신호가 인가될 경우, 상기 제1스위치의 온 상태 또는 오프 상태에 따라 상기 작업장치용 조이스틱을 조작시 상기 도저 블레이드 또는 작업장치를 선택적으로 구동시키기 위해 온 상태로 절환되는 솔레노이드밸브인 것을 특징으로 한다.When an electrical signal is applied from the first switch, the solenoid switched to the on state to selectively drive the doser blade or the work device when operating the joystick for the work device according to the on state or the off state of the first switch. It is characterized in that the valve.
상기 작업장치용 조이스틱의 조작에 의해 구동되는 상기 작업장치 또는 상기 도저 블레이드 중 선택된 작업모드를 표시하기 위해 운전실캡 내부에 장착되는 계기패널을 구비하는 것을 특징으로 한다.And an instrument panel mounted inside the cab to display a selected working mode of the work device or the dozer blade driven by the operation of the joystick for the work device.
운전석의 좌측 및 우측에 장착되는 작업장치용 조이스틱 중,Among the joysticks for work tools mounted on the left and right sides of the driver's seat,
상기 운전석의 우측에 장착되고 상기 제1스위치가 장착되는 작업장치용 조이스틱을 조작하여 상기 도저 블레이드를 구동시키고자 할 경우, 상기 제1선택밸브에 의해 붐 및 도저 블레이드를 업/다운 구동시키고,In order to drive the dozer blade by operating a joystick for a work device mounted on the right side of the driver's seat and equipped with the first switch, the boom and the dozer blade are driven up / down by the first selection valve.
상기 운전석의 좌측에 장착되고 상기 제1스위치가 장착되는 작업장치용 조이스틱을 조작하여 상기 도저 블레이드를 구동시키고자 할 경우, 상기 제1선택밸브에 의해 아암 인/아웃 및 도저 블레이드를 업/다운 구동시키는 것을 특징으로 한다.In order to drive the dozer blade by operating a joystick for a work device mounted on the left side of the driver's seat and equipped with the first switch, the arm in / out and the doser blade are driven up / down by the first selection valve. It is characterized by.
전술한 구성을 갖는 본 발명에 따르면, 작업장치용 조이스틱에 의해 작업장치 또는 도저 블레이드를 조작할 수 있어 도저 블레이드용 조작레버의 장착이 불필요하므로 운전실캡의 한정된 공간을 유용하게 활용하게 된다. 또한 도저 블레이드를 조작하는 조작레버의 장착위치(운전석의 좌측 방향 또는 우측 방향을 말함)를 고객이 임의로 선택할 수 있어 신뢰성 및 편리성을 제공하게 된다. 작업중 운전자의 부주의로 인한 도저 블레이드의 오동작을 방지할 수 있어 안전성을 확보할 수 있는 효과가 있다.According to the present invention having the above-described configuration, it is possible to operate the working device or the dozer blade by the joystick for the working device, so it is not necessary to install the operating lever for the dozer blade, so that the limited space of the cab cap is utilized effectively. In addition, the mounting position of the operating lever for manipulating the doser blade (which refers to the left or right direction of the driver's seat) can be arbitrarily selected by the customer, thereby providing reliability and convenience. It is possible to prevent the malfunction of the doser blade due to the carelessness of the driver during work, thereby ensuring the safety.
도 1은 종래 기술에 의한 건설기계용 조작장치의 사용상태도,1 is a state of use of the operation device for construction machinery according to the prior art,
도 2는 본 발명의 바람직한 실시예에 따른 건설기계용 조작장치의 사용상태도,Figure 2 is a state of use of the operating device for a construction machine according to a preferred embodiment of the present invention,
도 3은 본 발명의 바람직한 실시예에 따른 건설기계용 조작장치에서, 작업장치용 조이스틱의 조작에 의해 작업장치만을 구동시키는 것을 나타내는 유압회로도,3 is a hydraulic circuit diagram showing that only the working device is driven by the operation of the joystick for the working device in the operating device for a construction machine according to a preferred embodiment of the present invention;
도 4는 본 발명의 바람직한 실시예에 따른 건설기계용 조작장치에서, 작업장치용 조이스틱의 조작에 의해 작업장치를 구동시킬 수 있는 것을 나타내는 유압회로도,4 is a hydraulic circuit diagram showing that the operating device can be driven by the operation of the joystick for the working device in the operating device for a construction machine according to an embodiment of the present invention,
도 5는 본 발명의 바람직한 실시예에 따른 건설기계용 조작장치에서, 작업장치용 조이스틱의 조작에 의해 도저 블레이드를 구동시킬 수 있는 것을 나타내는 유압회로도이다.5 is a hydraulic circuit diagram showing that the dozer blade can be driven by the operation of the joystick for the working device in the operating device for a construction machine according to a preferred embodiment of the present invention.
〈도면의 주요 부분에 대한 참조 부호의 설명〉<Explanation of reference numerals for the main parts of the drawings>
1; 작업장치용 유압실린더One; Hydraulic cylinder for work equipment
2; 도저 블레이드용 유압실린더2; Hydraulic Cylinder for Dozer Blade
3; 메인 컨트롤밸브(MCV)3; Main control valve (MCV)
4; 작업장치용 조이스틱4; Joystick for Work Tool
6; 제1스위치6; First switch
7; 제1선택밸브7; 1st selector valve
8; 제2선택밸브8; 2nd selector valve
9; 제2스위치9; Second switch
이하, 첨부도면을 참조하여 본 발명의 바람직한 실시예에 따른 건설기계용 조작장치를 상세히 설명하기로 한다.Hereinafter, with reference to the accompanying drawings will be described in detail the operating device for a construction machine according to a preferred embodiment of the present invention.
도 2는 본 발명의 바람직한 실시예에 따른 건설기계용 조작장치의 사용상태도이고, 도 3은 본 발명의 바람직한 실시예에 따른 건설기계용 조작장치에서, 작업장치용 조이스틱의 조작에 의해 작업장치만을 구동시키는 것을 나타내는 유압회로도이며, 도 4는 본 발명의 바람직한 실시예에 따른 건설기계용 조작장치에서, 작업장치용 조이스틱의 조작에 의해 작업장치를 구동시킬 수 있는 것을 나타내는 유압회로도이며, 도 5는 본 발명의 바람직한 실시예에 따른 건설기계용 조작장치에서, 작업장치용 조이스틱의 조작에 의해 도저 블레이드를 구동시킬 수 있는 것을 나타내는 유압회로도이다.Figure 2 is a state diagram using a construction machine operating apparatus according to a preferred embodiment of the present invention, Figure 3 is a construction machine operating apparatus according to a preferred embodiment of the present invention, only the working apparatus by the operation of the joystick for the working apparatus Figure 4 is a hydraulic circuit diagram showing driving, Figure 4 is a hydraulic circuit diagram showing that the operating device can be driven by the operation of the joystick for the working device in the operating device operating apparatus according to a preferred embodiment of the present invention, Figure 5 In a construction machine operating apparatus according to a preferred embodiment of the present invention, it is a hydraulic circuit diagram showing that the dozer blade can be driven by the operation of the joystick for the working apparatus.
도 2를 참조하면, 본 발명의 일 실시예에 따른 건설기계용 조작장치는, 유압펌프(미도시됨)에 이로부터 공급되는 작동유에 의해 구동되는 작업장치용 유압실린더(1) 및 도저 블레이드용 유압실린더(2)가 연결된다.Referring to Figure 2, a construction machine operating apparatus according to an embodiment of the present invention, for the hydraulic cylinder (1) and the dozer blade for the working device driven by the hydraulic oil supplied therefrom to a hydraulic pump (not shown) The hydraulic cylinder 2 is connected.
상기 유압펌프와 작업장치용 유압실린더(1)사이의 유로와, 상기 유압펌프와 도저 블레이드용 유압실린더(2)사이의 유로에, 스풀(spool) 절환시 상기 작업장치용 유압실린더(1) 및 도저 블레이드용 유압실린더(2)에 공급되는 작동유의 흐름방향을 제어하는 메인 컨트롤밸브(MCV)(3)가 설치된다.In the flow path between the hydraulic pump and the hydraulic cylinder (1) for the working device, and the flow path between the hydraulic pump and the hydraulic cylinder (2) for the doser blade, the hydraulic cylinder (1) for the working device when switching the spool (spool) and A main control valve (MCV) 3 is installed to control the flow direction of the hydraulic oil supplied to the hydraulic cylinder 2 for the doser blade.
조작량에 대응되게 조작신호를 출력하는 작업장치용 조이스틱(4)이 상기 메인 컨트롤밸브(3)에 연결된다. 도저 블레이드를 구동시키기 위해 온(ON) 상태로 조작되는 제1스위치(6)가 상기 작업장치용 조이스틱(4)의 임의의 위치에 장착된다.A joystick 4 for a work device for outputting an operation signal corresponding to the operation amount is connected to the main control valve 3. A first switch 6 operated in the ON state for driving the doser blade is mounted at an arbitrary position of the joystick 4 for the work device.
상기 제1스위치(6)가 온(ON) 상태로 조작될 경우 상기 작업장치용 조이스틱(4)을 조작시 상기 도저 블레이드를 구동시키고, 상기 제1스위치(6)가 오프(OFF) 상태로 유지될 경우 상기 작업장치용 조이스틱(4)을 조작하여 상기 작업장치를 구동시키기 위해 절환되는 제1선택밸브(7)가, 상기 작업장치용 조이스틱(4)과 상기 메인 컨트롤밸브(3)사이의 유로에 설치된다.When the first switch 6 is operated in the ON state, the doser blade is driven when the joystick 4 for the work device is operated, and the first switch 6 is maintained in the OFF state. The first selector valve 7, which is switched to operate the work device by operating the joystick 4 for the work device, is a flow path between the joystick 4 for the work device and the main control valve 3. Is installed on.
제2스위치(9)로부터 전기적신호가 인가되지않아 초기 상태로 유지될 경우 상기 작업장치용 조이스틱(4)을 조작시 상기 작업장치만을 구동시키기 위한 제2선택밸브(8)가, 상기 작업장치용 조이스틱(4)과 상기 제1선택밸브(7)사이의 유로에 설치된다. 상기 제2선택밸브(8)는 상기 제1스위치(6)가 오프(OFF) 상태로 유지될 경우에 상기 작업장치용 조이스틱(4) 조작에 의해 상기 작업장치를 구동시킬 수 있도록, 상기 제2스위치(9)로부터 전기적신호 인가에 의해 온(ON) 상태로 절환된다.When the electric signal is not applied from the second switch 9 and is maintained in the initial state, a second selection valve 8 for driving only the work device when operating the joystick 4 for the work device is used for the work device. A flow path between the joystick 4 and the first selection valve 7 is provided. The second selection valve 8 is capable of driving the work device by operating the joystick 4 for the work device when the first switch 6 is kept in the OFF state. It is switched to the ON state by applying an electrical signal from the switch 9.
또한 상기 제2선택밸브(8)는 상기 제1스위치(6)가 온(ON) 상태로 조작될 경우에 상기 작업장치용 조이스틱(4) 조작에 의해 상기 도저 블레이드를 구동시킬 수 있도록, 상기 제2스위치(9)로부터 전기적신호 인가에 의해 온(ON) 상태로 절환된다.In addition, the second selection valve 8 may drive the doser blade by operating the joystick 4 for the work device when the first switch 6 is operated in an ON state. The switch is switched to the ON state by applying an electrical signal from the switch 9.
상기 제2선택밸브(8)는The second selector valve 8
상기 제2스위치(9)로부터 전기적신호가 인가되지않아 상기 작업장치용 조이스틱을 조작시 상기 작업장치만을 구동시키도록 하는 초기 상태와, 상기 제2스위치(9)로부터 전기적 신호가 인가될 경우 상기 제1스위치(6)의 온(ON) 상태 또는 오프(OFF) 상태에 따라 상기 도저 블레이드 또는 작업장치를 선택적으로 구동시키기 위해 온(ON) 상태로 절환되는 솔레노이드밸브가 사용될 수 있다.An initial state in which only the work device is driven when the joystick for the work device is operated because no electric signal is applied from the second switch 9, and when the electric signal is applied from the second switch 9. A solenoid valve switched to the ON state to selectively drive the doser blade or the work device according to the ON state or the OFF state of the switch 6 may be used.
상기 제2선택밸브(8)는The second selector valve 8
상기 제2스위치(9)로부터 전기적신호가 인가되지않아 초기상태를 유지하는 경우, 상기 제1스위치(6)를 온(ON) 상태로 조작하고 상기 작업장치용 조이스틱(4)을 조작하는 경우에도 상기 도저 블레이드용 유압실린더(2)에 작동유 공급되는 것을 차단시키도록 사용될 수 있다.In the case where the initial state is maintained because no electric signal is applied from the second switch 9, the first switch 6 is turned ON and the joystick 4 for the work device is operated. It can be used to block the supply of hydraulic oil to the hydraulic cylinder (2) for the doser blade.
상기 제1선택밸브(7)는The first selection valve 7 is
상기 제1스위치(6)가 조작되지않아 초기상태를 유지하는 경우 상기 작업장치용 조이스틱(4)을 조작시 상기 작업장치만을 구동시키도록 하는 초기상태와,When the first switch (6) is not operated to maintain the initial state and the initial state to drive only the work device when operating the joystick (4) for the work device,
상기 제1스위치(6)로부터 전기적 신호가 인가될 경우, 상기 제1스위치(6)의 온(ON) 상태 또는 오프(OFF) 상태에 따라 상기 작업장치용 조이스틱(4)을 조작시 상기 도저 블레이드 또는 작업장치를 선택적으로 구동시키기 위해 온(ON) 상태로 절환되는 솔레노이드밸브가 사용될 수 있다.When the electrical signal is applied from the first switch 6, the dozer blade when operating the joystick (4) for the work device according to the ON (ON) state or OFF (OFF) state of the first switch (6) Alternatively, a solenoid valve that is switched on to selectively drive the work tool may be used.
상기 작업장치용 조이스틱(4)의 조작에 의해 구동되는 상기 작업장치 또는 도저 블레이드 중 선택된 작업모드(작업장치 모드 또는 도저 블레이드 모드를 말함)를 표시하기 위한 계기패널(instrument panel)이 운전실캡(미도시됨) 내부에 장착될 수 있다.Instrument panel (instrument panel) for displaying the selected working mode (referring to the working mode or dozer blade mode) of the working device or the dozer blade driven by the operation of the joystick for work tool (4) It may be mounted inside).
운전석의 좌측 및 우측에 장착되는 작업장치용 조이스틱(4) 중,Of the joysticks 4 for work devices mounted on the left and right sides of the driver's seat,
상기 운전석의 우측에 장착되고 상기 제1스위치(6)가 장착되는 작업장치용 조이스틱(4)을 조작하여 상기 도저 블레이드를 구동시키고자 할 경우, 상기 제1선택밸브(7)에 의해 붐 및 도저 블레이드를 업(UP)/다운(DOWN) 구동시키고,In order to drive the dozer blade by operating the joystick 4 for the work device mounted on the right side of the driver's seat and equipped with the first switch 6, the boom and the dozer are controlled by the first selection valve 7. Drive the blades UP / DOWN,
상기 운전석의 좌측에 장착되고 상기 제1스위치(6)가 장착되는 작업장치용 조이스틱(4)을 조작하여 상기 도저 블레이드를 구동시키고자 할 경우, 상기 제1선택밸브(7)에 의해 아암 인(IN)/아웃(OUT) 및 도저 블레이드를 업(UP)/다운(DOWN) 구동시킬 수 있다.In order to drive the doser blade by operating the joystick 4 for the work device mounted on the left side of the driver's seat and equipped with the first switch 6, the arm in ( The IN / OUT and the doser blades can be driven up / down.
전술한 구성에 따르면, 도 2 및 도 3에서와 같이 상기 작업장치용 조이스틱(4)을 조작하여 작업장치만을 구동시키는 것을 설명하면, 상기 제2선택밸브(8)는 제2스위치(9)로부터 전기적신호가 인가되지않아 밸브스프링(8a)의 탄성력에 의해 초기상태를 유지하게 된다.According to the above-described configuration, as shown in FIGS. 2 and 3 to operate only the work device by operating the joystick 4 for the work device, the second selection valve 8 is separated from the second switch 9. Since no electrical signal is applied, the initial state is maintained by the elastic force of the valve spring 8a.
따라서, 상기 작업장치용 조이스틱(4)의 조작에 의한 조작신호는 상기 제2선택밸브(8)를 경유하여 상기 메인 컨트롤밸브(3)에 전달되므로 작업장치용 스풀(3a)을 절환시킨다. 이로 인해 유압펌프(미도시됨)의 작동유는 절환된 작업장치용 스풀(3a)을 경유하여 작업장치용 유압실린더(1)에 공급된다. 따라서 작업장치를 업(UP) 또는 다운(DOWN)시킬 수 있다. 상기 계기패널에는 작업장치의 구동중임을 알리는 작업장치 모드가 표시된다.Therefore, the operation signal by the operation of the joystick 4 for the working device is transmitted to the main control valve 3 via the second selection valve 8, thereby switching the spool 3a for the working device. Thus, the hydraulic oil of the hydraulic pump (not shown) is supplied to the hydraulic cylinder 1 for the working device via the switched work device spool 3a. Therefore, the work device can be raised (UP) or down (DOWN). The instrument panel displays a working device mode indicating that the working device is being driven.
이때, 상기 작업장치용 조작레버(4)의 조작에 의해 상기 작업장치용 스풀(3a)을 절환시킬 경우, 상기 유압펌프로부터 절환된 작업장치용 스풀(3a)을 경유하여 공급되는 작동유에 의해 상기 작업장치용 유압실린더(1)를 구동시키는 구성은, 당해분야에서 사용되는 구성이므로 이의 상세한 설명은 생략한다.At this time, when the work device spool 3a is switched by the operation of the work device operating lever 4, the hydraulic oil is supplied via the work device spool 3a switched from the hydraulic pump. Since the structure which drives the hydraulic cylinder 1 for working apparatuses is a structure used in the art, its detailed description is abbreviate | omitted.
전술한 바와 같이 상기 제2선택밸브(8)가 상기 제2스위치(9)로부터 전기적신호가 인가되지않아 초기상태를 유지하고 있는 경우, 상기 작업장치용 조이스틱(4)을 조작시 상기 작업장치용 스풀(3a)이 절환된다. 따라서 상기 유압펌프의 작동유에 의해 상기 작업장치용 유압실린더(1)를 구동시켜 작업장치만을 구동시킬 수 있다.As described above, when the second selection valve 8 maintains the initial state without an electric signal applied from the second switch 9, the operation device joystick 4 is operated when the second selection valve 8 is operated. The spool 3a is switched. Therefore, it is possible to drive only the working device by driving the hydraulic cylinder 1 for the working device by the hydraulic oil of the hydraulic pump.
이때, 상기 작업장치용 조이스틱(4)의 조작에 의해 상기 작업장치를 구동시켜 작업하는 도중에, 운전자 부주의로 인해 상기 제1스위치(6)를 조작하는 경우에도 상기 도저 블레이드용 유압실린더(2)를 구동시킬 수 없게 된다. 즉 작업장치와 도저 블레이드간의 혼동을 방지함에 따라 상기 도저 블레이드의 오동작을 방지할 수 있게 된다.At this time, even when the first switch 6 is operated inadvertently while driving the work apparatus by the operation of the work device joystick 4 and the driver is inadvertently operated, the hydraulic cylinder 2 for the doser blade is held. It can't be driven. That is, by preventing confusion between the working device and the dozer blade, it is possible to prevent the malfunction of the doser blade.
도 2 및 도 4에서와 같이, 상기 작업장치용 조이스틱(4)을 조작시 작업장치의 구동가능한 상태를 설명하면, 상기 제2스위치(9)로부터 제2선택밸브(8)에 전기적신호를 인가시켜 상기 제2선택밸브(8)를 온(ON) 상태로 절환시킨다. 이때 상기 제1선택밸브(7)는 상기 제1스위치(6)로부터 전기적신호가 인가되지않아 밸브스프링(7a)의 탄성력에 의해 초기상태를 유지하게 된다.Referring to FIG. 2 and FIG. 4, when the operation state of the work device is operated when the joystick 4 for the work device is operated, an electrical signal is applied to the second selection valve 8 from the second switch 9. To switch the second selection valve 8 to the ON state. At this time, the first selection valve 7 is maintained by the elastic force of the valve spring (7a) is not applied to the electrical signal from the first switch (6).
이로 인해, 상기 작업장치용 조이스틱(4)의 조작에 의한 조작신호가 상기 제2선택밸브(8) 및 제1선택밸브(7)를 경유하여 상기 메인 컨트롤밸브(3)에 전달되므로 작업장치용 스풀(3a)을 절환시킨다.Therefore, the operation signal by the operation of the joystick (4) for the work device is transmitted to the main control valve (3) via the second selection valve 8 and the first selection valve (7) Switch the spool 3a.
이로 인해, 상기 유압펌프의 작동유는 절환된 작업장치용 스풀(3a)을 경유하여 작업장치용 유압실린더(1)에 공급되므로, 작업장치를 업(UP) 또는 다운(DOWN)시키게 된다. 이때 상기 계기패널에는 상기 도저 블레이드를 구동시킬 수 있는 준비상태(stand by)가 표시된다.For this reason, the hydraulic oil of the hydraulic pump is supplied to the hydraulic cylinder 1 for the working apparatus via the switched work apparatus spool 3a, thereby bringing up or down the working apparatus. At this time, the instrument panel is displayed (stand by) to drive the doser blade.
도 2 및 도 5에서와 같이, 상기 작업장치용 조이스틱(4)을 조작시 도저 블레이드의 구동가능한 상태를 설명하면, 상기 제2스위치(9)로부터 제2선택밸브(8)에 전기적신호를 인가시키고, 상기 제1스위치(6)로부터 제1선택밸브(7)에 전기적신호를 인가시킴에 따라, 상기 제2선택밸브(8) 및 제1선택밸브(7)를 온(ON) 상태로 절환시킨다.2 and 5, when the operation state of the doser blade when operating the joystick 4 for the work device is described, an electrical signal is applied from the second switch 9 to the second selection valve 8. In response to an electrical signal applied from the first switch 6 to the first selection valve 7, the second selection valve 8 and the first selection valve 7 are switched on. Let's do it.
이로 인해, 상기 작업장치용 조이스틱(4)의 조작에 의한 조작신호가 상기 제2선택밸브(8) 및 제1선택밸브(7)를 경유하여 상기 메인 컨트롤밸브(3)에 전달되므로, 상기 도저 블레이드용 스풀(3b)을 절환시킨다.Thus, the operation signal by the operation of the joystick 4 for the work device is transmitted to the main control valve 3 via the second selection valve 8 and the first selection valve 7, so that the doser The blade spool 3b is switched.
이때, 상기 유압펌프의 작동유는 절환된 도저 블레이드용 스풀(3b)을 경유하여 도저 블레이드용 유압실린더(2)에 공급된다. 따라서 도저 블레이드를 업(UP) 또는 다운(DOWN) 시킬 수 있다. 이때 상기 계기패널에는 상기 도저 블레이드의 구동중임을 알리는 도저 블레이드 모드가 표시된다.At this time, the hydraulic oil of the hydraulic pump is supplied to the hydraulic cylinder for the dozer blade (2) via the switched dozer blade spool (3b). Therefore, the doser blade can be raised (UP) or down (DOWN). In this case, the instrument panel displays a doser blade mode informing that the dozer blade is being driven.
상기 도저 블레이드를 구동시켜 작업하는 도중에 상기 작업장치를 구동시키고자 할 경우, 상기 제1스위치(6)를 오프(OFF) 상태로 조작한다. 이로 인해 상기 도저 블레이드의 구동을 정지시키고 상기 작업장치를 구동시킬 수 있는 작업장치 모드로 전환할 수 있게 된다. 즉 상기 제1스위치(6)의 온(ON) 조작 또는 오프(OFF) 조작에 의해 상기 도저 블레이드를 구동상태 또는 정지상태로 용이하게 전환시킬 수 있다.When the work device is to be driven while working by driving the doser blade, the first switch 6 is operated in an OFF state. This makes it possible to stop the drive of the doser blade and to switch to the work mode that can drive the work tool. That is, the doser blade can be easily switched to a driving state or a stationary state by an ON operation or an OFF operation of the first switch 6.
한편, 사용자가 상기 도저 블레이드를 구동시키기 위한 상기 제1스위치(6)가 장착되는 상기 작업장치용 조이스틱(4)의 장착위치를 임의로 선택할 수 있다. 즉 사용자가 상기 작업장치용 조이스틱(4)이 운전석의 우측에 장착되는 장비의 모델명을 선택한 경우, 운전석 우측에 장착되는 작업장치용 조이스틱(4)에 장착된 제1스위치(6)를 조작하여 상기 도저 블레이드를 구동시킬 수 있다. 이때 상기 제1선택밸브(7)에 의해 붐의 업(up)/다운(down) 및 도저 블레이드를 업/다운 구동시킬 수 있도록 장비 조립시 미리 설정되어 있다.On the other hand, the user can arbitrarily select the mounting position of the joystick 4 for the working device on which the first switch 6 for driving the doser blade is mounted. That is, when the user selects the model name of the equipment on which the work device joystick 4 is mounted on the right side of the driver's seat, the user operates the first switch 6 mounted on the work device joystick 4 mounted on the right side of the driver's seat. The doser blade can be driven. At this time, the first selection valve 7 is set in advance when assembling the equipment so that the up / down of the boom and the up / down drive of the dozer blade.
또한, 사용자가 상기 작업장치용 조이스틱(4)이 운전석의 좌측에 장착되는 장비의 모델명을 선택한 경우, 운전석 좌측에 장착되는 작업장치용 조이스틱(4)에 장착된 제1스위치(6)를 조작하여 상기 도저 블레이드를 구동시킬 수 있다. 이때 상기 제1선택밸브(7)에 의해 아암의 인(in)/아웃(out) 및 도저 블레이드를 업(UP)/다운(DOWN)의 구동시킬 수 있도록 장비 조립시 미리 설정되어 있다.In addition, when the user selects the model name of the equipment in which the work device joystick 4 is mounted on the left side of the driver's seat, the first switch 6 mounted on the work device joystick 4 mounted on the left side of the driver's seat is operated. The doser blade may be driven. At this time, the first selection valve 7 is set in advance when assembling the equipment to drive the in (in) / out (out) and the doser blade of the arm (UP) / (DOWN).
여기에서, 상술한 본 발명에서는 바람직한 실시예를 참조하여 설명하였지만, 해당 기술분야에서 숙력된 당업자는 하기의 특허청구범위에 기재된 본 발명의 사상 및 영역으로부터 벗어나지 않는 범위 내에서 본 발명을 다양하게 수정 및 변경할 수 있음을 이해할 수 있을 것이다. Herein, the present invention described above has been described with reference to preferred embodiments, but those skilled in the art will variously modify the present invention without departing from the spirit and scope of the present invention as set forth in the claims below. And can be changed.
전술한 구성을 갖는 본 발명에 따르면, 도저 블레이드용 조작레버를 운전실캡 내에 별도로 설치하기 위한 공간이 불필요하게 된다. 또한 도저 블레이드를 조작하는 조작레버의 장착위치를 고객이 임의로 선택할 수 있다. 또한 작업중 운전자의 부주의로 인한 도저 블레이드의 오동작을 방지할 수 있는 효과가 있다. According to the present invention having the above-described configuration, a space for separately installing the dozer blade operating lever in the cab is unnecessary. In addition, the customer can arbitrarily select the mounting position of the operation lever for operating the doser blade. In addition, there is an effect that can prevent the malfunction of the doser blade due to the carelessness of the driver during the operation.

Claims (7)

  1. 유압펌프의 작동유에 의해 구동되는 작업장치용 유압실린더 및 도저 블레이드용 유압실린더;A hydraulic cylinder for the work device and a hydraulic cylinder for the doser blade driven by the hydraulic oil of the hydraulic pump;
    상기 유압펌프와 작업장치용 유압실린더사이의 유로 및 상기 유압펌프와 도저 블레이드용 유압실린더사이의 유로에 설치되고, 절환시 상기 작업장치용 유압실린더 또는 도저 블레이드용 유압실리더의 구동을 제어하는 메인 컨트롤밸브;The main pump is installed in the flow path between the hydraulic pump and the hydraulic cylinder for the working device and the flow path between the hydraulic pump and the hydraulic cylinder for the dozer blade, and controls the driving of the hydraulic cylinder for the working device or the hydraulic cylinder for the dozer blade during the switching. Control valve;
    조작량에 대응되게 조작신호를 출력하는 작업장치용 조이스틱;A joystick for a work device for outputting an operation signal corresponding to the operation amount;
    상기 작업장치용 조이스틱의 임의의 위치에 장착되고, 상기 도저 블레이드를 구동시키기 위해 온 상태로 조작되는 제1스위치; 및A first switch mounted at an arbitrary position of the joystick for the work device and operated in an on state to drive the doser blade; And
    상기 제1스위치가 온 상태로 조작될 경우 상기 작업장치용 조이스틱을 조작하여 상기 도저 블레이드를 구동시키고, 상기 제1스위치가 오프 상태로 유지될 경우 상기 작업장치용 조이스틱을 조작하여 상기 작업장치를 구동시키기 위해 절환되는 제1선택밸브;를 구비하는 것을 특징으로 하는 건설기계용 조작장치.When the first switch is operated in an on state, the doser blade is driven by operating the joystick for the work device, and when the first switch is maintained in the off state, the work device is operated by operating the joystick for the work device. And a first selection valve that is switched to make a switch.
  2. 제1항에 있어서,The method of claim 1,
    상기 작업장치용 조이스틱과 상기 제1선택밸브사이의 유로에 설치되고,Is installed in the flow path between the joystick for the work device and the first selection valve,
    제2스위치로부터 전기적신호가 인가되지않아 초기 상태로 유지될 경우 상기 작업장치용 조이스틱을 조작시 상기 작업장치만을 구동시키고,When the electrical signal is not applied from the second switch and is maintained in the initial state, only the working device is driven when the joystick for working device is operated.
    상기 제2스위치로부터 전기적신호가 인가되어 온 상태로 절환되고 상기 제1스위치가 오프 상태로 유지될 경우 상기 작업장치용 조이스틱 조작에 의해 상기 작업장치를 구동시키고, 상기 제2스위치로부터 전기적신호가 인가되어 온 상태로 절환되고 상기 제1스위치가 온 상태로 조작될 경우 상기 작업장치용 조이스틱 조작에 의해 상기 도저 블레이드를 구동시키기 위해 절환되는 제2선택밸브를 구비하는 것을 특징으로 하는 건설기계용 조작장치.When the electrical signal is switched on from the second switch and the first switch is kept in the off state, the working device is driven by the joystick operation for the working device, and the electrical signal is applied from the second switch. And a second selection valve switched to drive the doser blade by operating the joystick for the work device when the switch is switched to the on state and the first switch is operated in the on state. .
  3. 제2항에 있어서, 상기 제2선택밸브는The method of claim 2, wherein the second selection valve
    상기 제2스위치로부터 전기적신호가 인가되지않아 상기 작업장치용 조이스틱을 조작시 상기 작업장치만을 구동시키도록 하는 초기 상태와,An initial state in which an electric signal is not applied from the second switch so that only the work device is driven when the joystick for the work device is operated;
    상기 제2스위치로부터 전기적 신호가 인가될 경우, 상기 제1스위치의 온 상태 또는 오프 상태에 따라 상기 도저 블레이드 또는 작업장치를 선택적으로 구동시키기 위해 온 상태로 절환되는 솔레노이드밸브인 것을 특징으로 하는 건설기계용 조작장치.When the electrical signal is applied from the second switch, the construction machine, characterized in that the solenoid valve is switched to the on state to selectively drive the dozer blade or work device according to the on state or off state of the first switch Manipulator
  4. 제3항에 있어서, 상기 제2선택밸브는The method of claim 3, wherein the second selection valve
    상기 제2스위치로부터 전기적신호가 인가되지않아 초기상태를 유지하는 경우, 상기 제1스위치를 온 상태로 조작하고 상기 작업장치용 조이스틱을 조작하는 경우에도 상기 도저 블레이드용 유압실린더에 작동유 공급되는 것을 차단시키도록 사용되는 것을 특징으로 하는 건설기계용 조작장치.When the electrical signal is not applied from the second switch and maintains the initial state, even when the first switch is turned on and the joystick for the work device is operated, the supply of hydraulic oil to the doser blade hydraulic cylinder is blocked. Operating apparatus for a construction machine, characterized in that used to.
  5. 제1항에 있어서, 상기 제1선택밸브는The method of claim 1, wherein the first selection valve
    상기 제1스위치가 조작되지않아 초기상태를 유지하는 경우 상기 작업장치용 조이스틱을 조작시 상기 작업장치만을 구동시키도록 하는 초기상태와,An initial state of driving only the work device when operating the joystick for the work device when the first switch is not operated to maintain the initial state;
    상기 제1스위치로부터 전기적 신호가 인가될 경우, 상기 제1스위치의 온 상태 또는 오프 상태에 따라 상기 작업장치용 조이스틱을 조작시 상기 도저 블레이드 또는 작업장치를 선택적으로 구동시키기 위해 온 상태로 절환되는 솔레노이드밸브인 것을 특징으로 하는 건설기계용 조작장치.When an electrical signal is applied from the first switch, the solenoid switched to the on state to selectively drive the doser blade or the work device when operating the joystick for the work device according to the on state or the off state of the first switch. Operating device for a construction machine, characterized in that the valve.
  6. 제1항에 있어서, 상기 작업장치용 조이스틱의 조작에 의해 구동되는 상기 작업장치 또는 상기 도저 블레이드 중 선택된 작업모드를 표시하기 위해 운전실캡 내부에 장착되는 계기패널을 구비하는 것을 특징으로 하는 건설기계용 조작장치.The construction machine according to claim 1, further comprising an instrument panel mounted inside a cab to display a selected working mode of the work device or the dozer blade driven by the operation of the joystick for the work device. Controls.
  7. 제1항에 있어서,The method of claim 1,
    운전석의 좌측 및 우측에 장착되는 작업장치용 조이스틱 중,Among joysticks for work tools mounted on the left and right sides of the driver's seat,
    상기 운전석의 우측에 장착되고 상기 제1스위치가 장착되는 작업장치용 조이스틱을 조작하여 상기 도저 블레이드를 구동시키고자 할 경우, 상기 제1선택밸브에 의해 붐 및 도저 블레이드를 업/다운 구동시키고,In order to drive the dozer blade by operating a joystick for a work device mounted on the right side of the driver's seat and equipped with the first switch, the boom and the dozer blade are driven up / down by the first selection valve.
    상기 운전석의 좌측에 장착되고 상기 제1스위치가 장착되는 작업장치용 조이스틱을 조작하여 상기 도저 블레이드를 구동시키고자 할 경우, 상기 제1선택밸브에 의해 아암 인/아웃 및 도저 블레이드를 업/다운 구동시키는 것을 특징으로 하는 건설기계용 조작장치.In order to drive the dozer blade by operating a joystick for a work device mounted on the left side of the driver's seat and equipped with the first switch, the arm in / out and the doser blade are driven up / down by the first selection valve. Operating apparatus for a construction machine, characterized in that.
PCT/KR2014/005168 2014-06-12 2014-06-12 Operating apparatus for construction equipment WO2015190631A1 (en)

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WO2022093494A1 (en) * 2020-10-30 2022-05-05 Caterpillar Inc. Mode selection for an operator control

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