KR100974277B1 - fixing device of hydraulic pipe of construction machine - Google Patents

fixing device of hydraulic pipe of construction machine Download PDF

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Publication number
KR100974277B1
KR100974277B1 KR1020080020030A KR20080020030A KR100974277B1 KR 100974277 B1 KR100974277 B1 KR 100974277B1 KR 1020080020030 A KR1020080020030 A KR 1020080020030A KR 20080020030 A KR20080020030 A KR 20080020030A KR 100974277 B1 KR100974277 B1 KR 100974277B1
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South Korea
Prior art keywords
return
pipe
hydraulic
upper frame
return pipe
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KR1020080020030A
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Korean (ko)
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KR20090094990A (en
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고준석
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볼보 컨스트럭션 이키프먼트 홀딩 스웨덴 에이비
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Priority to KR1020080020030A priority Critical patent/KR100974277B1/en
Priority to EP09002909.1A priority patent/EP2098644A3/en
Priority to CN2009101186971A priority patent/CN101525889B/en
Priority to JP2009048738A priority patent/JP5401122B2/en
Priority to US12/397,437 priority patent/US20090223582A1/en
Publication of KR20090094990A publication Critical patent/KR20090094990A/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
    • 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
    • E02F9/08—Superstructures; Supports for superstructures
    • 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
    • E02F9/08—Superstructures; Supports for superstructures
    • E02F9/0858—Arrangement of component parts installed on superstructures not otherwise provided for, e.g. electric components, fenders, air-conditioning units
    • E02F9/0875—Arrangement of valve arrangements on superstructures
    • 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
    • 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
    • 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
    • E02F9/2275—Hoses and supports therefor and protection therefor
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T137/00—Fluid handling
    • Y10T137/6851—With casing, support, protector or static constructional installations
    • Y10T137/6855—Vehicle
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T137/00—Fluid handling
    • Y10T137/6851—With casing, support, protector or static constructional installations
    • Y10T137/6855—Vehicle
    • Y10T137/6914—Vehicle supports fluid compressor and compressed fluid storage tank

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  • Engineering & Computer Science (AREA)
  • Mining & Mineral Resources (AREA)
  • Civil Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Structural Engineering (AREA)
  • Component Parts Of Construction Machinery (AREA)
  • Supply Devices, Intensifiers, Converters, And Telemotors (AREA)

Abstract

개시된 내용은, 소선회형 장비 등에서와 같이 상부프레임의 작업공간이 협소한 환경에서 배관 사이즈가 큰 리턴배관을 유압탱크에 이음연결할 경우, 메인 컨트롤밸브(MCV)의 작동유를 유압탱크 또는 오일쿨러로 복귀시키는 리턴배관용 블록에 의해 선회모터 등의 간섭을 받지않고 리턴배관을 이음연결할 수 있도록 한 것으로,The disclosed contents, when connecting a large return pipe to the hydraulic tank in an environment where the work space of the upper frame is narrow, such as in small swing type equipment, the hydraulic fluid of the main control valve (MCV) to the hydraulic tank or oil cooler The return piping block to return allows the return piping to be jointed without interference from the turning motor.

본 발명의 실시예에 의한 건설기계의 유압배관 고정장치는,Hydraulic pipe fixing device of the construction machine according to an embodiment of the present invention,

메인 컨트롤밸브로부터 작동유를 유압탱크 또는 오일쿨러로 복귀시키는 리턴배관을 포함하는 건설기계의 유압배관 고정장치에 있어서,In the hydraulic pipe fixing device of a construction machine including a return pipe for returning the working oil from the main control valve to the hydraulic tank or oil cooler,

메인 컨트롤밸브에 입구측이 이음연결되는 제1리턴이음관과,A first return joint pipe connected to the inlet side of the main control valve,

오일쿨러에 출구측이 이음연결되는 제2리턴이음관과,A second return joint pipe having an outlet side connected to the oil cooler,

작업장치가 고정되는 프레임과 선회모터사이의 상부프레임에 장착되고, 제1리턴이음관의 출구측과 제2리턴이음관의 입구측이 각각 이음연결되는 리턴배관용 블록과,A return pipe block mounted on the upper frame between the frame to which the work device is fixed and the swing motor, and the outlet side of the first return joint pipe and the inlet side of the second return joint pipe are respectively connected;

리턴배관용 블록에 입구측이 이음연결되고 유압탱크에 출구측이 이음연결되는 제3리턴이음관을 포함하여,Including a third return joint pipe that is connected to the inlet side to the return pipe block and the outlet side is connected to the hydraulic tank,

상부프레임에 리턴배관용 블록을 장착하여 제1,2리턴이음관을 이음연결하고, 상부프레임에 선회모터를 장착 후 제3리턴이음관을 리턴배관용 블록과 유압탱크에 이음연결한다.The return pipe block is mounted on the upper frame to connect the first and second return pipe joints, and the return motor is connected to the return pipe block and the hydraulic tank after the swing motor is mounted on the upper frame.

건설기계 유압배관, MCV, 유압탱크, 리턴라인, 오일쿨러, 블록 Construction Machinery Hydraulic Piping, MCV, Hydraulic Tank, Return Line, Oil Cooler, Block

Description

건설기계의 유압배관 고정장치{fixing device of hydraulic pipe of construction machine}Fixing device of hydraulic pipe of construction machine

본 발명은 작업장치 등에 공급되는 작동유의 흐름을 제어하는 메인 컨트롤밸브(MCV)로부터 유압탱크로 작동유를 복귀시키는 리턴배관을 상부프레임의 협소한 작업공간에서도 용이하게 이음연결할 수 있도록 한 건설기계의 유압배관 고정장치에 관한 것이다.The present invention provides a hydraulic system for a construction machine that can easily connect a return pipe for returning hydraulic oil to a hydraulic tank from a main control valve (MCV) that controls the flow of hydraulic oil supplied to a work device in a narrow working space of an upper frame. It relates to a pipe fixing device.

더욱 상세하게는, 소선회형 장비 등에서와 같이 상부프레임의 작업공간이 협소한 환경에서 배관 사이즈가 큰 리턴배관을 유압탱크에 이음연결할 경우, 메인 컨트롤밸브의 작동유를 유압탱크 또는 오일쿨러로 복귀시키는 리턴배관용 블록에 의해 선회모터 등의 간섭을 받지않고 리턴배관을 이음연결할 수 있도록 한 건설기계의 유압배관 고정장치에 관한 것이다.More specifically, when connecting the return pipe with a large pipe size to the hydraulic tank in an environment where the upper frame has a narrow working space, such as in a small swing type equipment, the hydraulic fluid of the main control valve is returned to the hydraulic tank or the oil cooler. It relates to a hydraulic pipe fixing device of a construction machine that can be connected to the return pipe without interference of the turning motor, etc. by the return pipe block.

일반적으로, 선회식 굴삭기는 표준형 및 소 선회형으로 구분된다.In general, swing excavators are divided into standard and small swing type.

표준형 선회식 굴삭기는, 하부주행체에 대해 상부프레임이 전,후방향을 향하 는 자세(작업장치가 하부주행체의 주행방향을 향하는 자세)일 경우 상부프레임의 후단부가 하부주행체의 전,후부(주행방향의 단부)보다도 외부로 돌출되고, 하부주행체에 대해 상부프레임이 횡방향을 향하는 자세(작업장치가 하부주행체의 주행방향과 직각방향을 향하는 자세)을 경우 상부프레임의 후단부가 하부주행체의 좌,우측부(주행방향과 직각방향의 단부)보다도 외부로 돌출되는 장비를 말한다.The standard swing excavator is a position in which the upper frame faces forward and rearward with respect to the lower running body (the posture of the work tool facing the driving direction of the lower running body). The rear end of the upper frame is projected outward from the end of the driving direction, and the rear frame of the upper frame is lower when the upper frame is in a transverse direction with respect to the lower traveling body. It refers to equipment which projects outward from the left and right sides of the traveling body (ends in the direction perpendicular to the running direction).

따라서 상부프레임의 후단부에서 선회중심까지의 거리가 길고 상부프레임의 뒤회전 모멘트가 크게 되므로 작업장치의 굴삭력에 의해 발생되는 앞회전 모멘트에 의해 전도되기 힘들다. 이로 인해 큰 굴삭력이 가능하므로 작업성이 향상된다.Therefore, since the distance from the rear end of the upper frame to the pivot center is long and the rear rotation moment of the upper frame is large, it is difficult to fall by the front rotation moment generated by the excavation force of the working device. This enables greater digging force, thus improving workability.

도 1에 도시된 바와 같이, 종래 기술에 의한 건설기계(일반 장비를 말함)의 유압배관 고정장치는,As shown in Figure 1, the hydraulic pipe fixing device of the construction machine (general equipment) according to the prior art,

작업장치 등에 공급되는 작동유의 흐름을 제어하는 메인 컨트롤밸브(1)로부터의 작동유를 오일쿨러(미도시됨)를 경유하여 유압탱크(2)로 복귀시키거나, 또는 유압탱크(2)의 귀환라인에 일정압력 이상의 배압이 형성되는 경우 메인 컨트롤밸브(1)로부터의 작동유를 오일쿨러를 경유하지 않고 유압탱크(2)로 복귀시키는 리턴배관(3)을 포함한다.The hydraulic oil from the main control valve 1 for controlling the flow of the hydraulic oil supplied to the work device is returned to the hydraulic tank 2 via an oil cooler (not shown), or the return line of the hydraulic tank 2 is supplied. It includes a return pipe (3) for returning the hydraulic oil from the main control valve (1) to the hydraulic tank (2) without passing through the oil cooler when a back pressure of a predetermined pressure is formed in the.

이때 리턴배관(3)은 상부프레임의 작업공간이 협소하여 선회모터(4)를 피하여 이음연결 된다.At this time, the return pipe (3) is connected to avoid the turning motor (4) because the working space of the upper frame is narrow.

도 2에 도시된 바와 같이, 종래 기술에 의한 건설기계(소선회형 장비를 말 함)의 유압배관 고정장치는,As shown in Figure 2, the hydraulic pipe fixing device of the construction machine (referring to the small swing type equipment) according to the prior art,

소선회형 장비 특성상 상부프레임(6)의 작업공간이 충분하지 못해 선회모터(4)를 피하여 리턴배관(3)을 설치하게 된다. 이로 인해 해당 배관을 단일체 호스(1 piece hose)를 이용하여 연결하거나, 유압탱크(2)의 전방 공간을 활용하여 리턴배관(3)을 유압탱크(2)의 측면에 이음연결 한다.Due to the characteristics of the small swing type equipment, the work space of the upper frame 6 is not sufficient, so that the return pipe 3 is installed to avoid the swing motor 4. For this reason, the pipe is connected using a single piece hose, or the return pipe 3 is connected to the side of the hydraulic tank 2 using the front space of the hydraulic tank 2.

이때 오일쿨러(5)에 연결되는 리턴배관(3)은 선회모터(4)의 외측면에 밀착된 상태로 배치됨에 따라 선회모터(4)를 상부프레임(6)에 먼저 장착한 후, 리턴배관(3)을 이음연결 한다. 이로 인해 리턴배관(3)을 이음연결시 선회모터(4)에 이음연결된 유압배관에 간섭을 받게 되므로 작업능률이 떨어진다.At this time, the return pipe (3) connected to the oil cooler (5) is placed in close contact with the outer surface of the swing motor (4), first mounting the swing motor (4) to the upper frame (6), and then return piping Connect (3) to the joint. As a result, when the return pipe 3 is connected to the joint, the hydraulic pipe connected to the pivoting motor 4 is interfered with, thereby reducing work efficiency.

한편, 소선회형 장비도 장비의 활용도를 극대화시킬 수 있도록 옵션장치(hammer, shear, quick fit 등을 말함)를 교체시켜 작업하는 빈도수가 증가된다. 또한 리턴배관(3)의 배관 사이즈가 증가됨에 따라 상부프레임(6)의 작업공간이 협소해져 공간활용이 힘들게 된다. 이로 인해 리턴배관(3)이 선회모터(4)의 전방에 배치되도록 설치하게 된다.On the other hand, small swing type equipment also increases the frequency of work by replacing the optional device (hammer, shear, quick fit, etc.) to maximize the utilization of the equipment. In addition, as the pipe size of the return pipe 3 is increased, the working space of the upper frame 6 is narrowed, and space utilization becomes difficult. As a result, the return pipe 3 is installed to be disposed in front of the swing motor 4.

즉, 선회모터(4)와 작업장치의 고정부사이에 작업공간이 충분하지 못해 리턴배관(3)을 이음연결하는 작업시간이 증가되어 작업능률이 떨어지고, 작업공간이 협소한 환경에서 작업하는 작업자의 안전성이 떨어지는 문제점을 갖는다.That is, there is not enough work space between the swing motor 4 and the fixed part of the work device, so that the working time for connecting the return pipe 3 is increased, resulting in a decrease in work efficiency and a worker working in an environment where the work space is narrow. Has the problem of poor safety.

본 발명의 실시예는, 상부프레임의 작업공간이 협소한 환경에서 배관 사이즈가 큰 리턴배관을 유압탱크에 이음연결할 경우, 메인 컨트롤밸브의 작동유를 유압탱크 또는 오일쿨러로 복귀시키는 리턴배관용 블록에 의해 선회모터 등의 간섭을 받지않아 작업시간을 단축하고, 작업공간을 확보할 수 있도록 한 건설기계의 유압배관 고정장치와 관련된다.Embodiment of the present invention, when connecting the return pipe with a large pipe size to the hydraulic tank in a narrow working space of the upper frame, to the return pipe block for returning the hydraulic fluid of the main control valve to the hydraulic tank or oil cooler It is related to the hydraulic pipe fixing device of construction machinery which can reduce the working time and secure the working space without being interfered with by the turning motor.

본 발명의 실시예에 의한 건설기계의 유압배관 고정장치는,Hydraulic pipe fixing device of the construction machine according to an embodiment of the present invention,

메인 컨트롤밸브로부터 작동유를 유압탱크 또는 오일쿨러로 복귀시키는 리턴배관을 포함하는 건설기계의 유압배관 고정장치에 있어서,In the hydraulic pipe fixing device of a construction machine including a return pipe for returning the working oil from the main control valve to the hydraulic tank or oil cooler,

메인 컨트롤밸브에 입구측이 이음연결되는 제1리턴이음관과,A first return joint pipe connected to the inlet side of the main control valve,

오일쿨러에 출구측이 이음연결되는 제2리턴이음관과,A second return joint pipe having an outlet side connected to the oil cooler,

작업장치가 고정되는 프레임과 선회모터사이의 상부프레임에 장착되고, 제1리턴이음관의 출구측과 제2리턴이음관의 입구측이 각각 이음연결되는 리턴배관용 블록과,A return pipe block mounted on the upper frame between the frame to which the work device is fixed and the swing motor, and the outlet side of the first return joint pipe and the inlet side of the second return joint pipe are respectively connected;

리턴배관용 블록에 입구측이 이음연결되고 유압탱크에 출구측이 이음연결되는 제3리턴이음관을 포함하여,Including a third return joint pipe that is connected to the inlet side to the return pipe block and the outlet side is connected to the hydraulic tank,

상부프레임에 리턴배관용 블록을 장착하여 제1,2리턴이음관을 이음연결하고, 상부프레임에 선회모터를 장착 후 제3리턴이음관을 리턴배관용 블록과 유압탱크에 이음연결한다.The return pipe block is mounted on the upper frame to connect the first and second return pipe joints, and the return motor is connected to the return pipe block and the hydraulic tank after the swing motor is mounted on the upper frame.

바람직한 실시예에 의하면, 전술한 리턴배관용 블록은 선회모터의 전방으로 상부프레임에 장착된다.According to a preferred embodiment, the above-mentioned return pipe block is mounted to the upper frame in front of the swing motor.

전술한 제3리턴이음관으로 유압용 호스 또는 파이프가 사용된다.As the above-mentioned third return joint pipe, a hydraulic hose or pipe is used.

전술한 바와 같이, 본 발명의 실시예에 의한 건설기계의 유압배관 고정장치는 아래와 같은 이점을 갖는다.As described above, the hydraulic pipe fixing device of the construction machine according to the embodiment of the present invention has the following advantages.

상부프레임의 작업공간이 협소한 환경에서 배관 사이즈가 큰 리턴배관을 유압탱크에 이음연결할 경우, 메인 컨트롤밸브의 작동유를 유압탱크 또는 오일쿨러로 복귀시키는 리턴배관용 블록에 의해 선회모터를 조립하는 작업공정을 단순화시켜 작업시간을 단축하고, 작업공간을 확보하여 작업능률을 향상시킬 수 있다.When connecting the large return pipe to the hydraulic tank in a confined space of the upper frame, the turning motor is assembled by the return pipe block which returns the hydraulic oil from the main control valve to the hydraulic tank or oil cooler. By simplifying the process, the working time can be shortened and the working space can be secured to improve the work efficiency.

이하, 본 발명의 바람직한 실시예를 첨부된 도면을 참조하여 설명하되, 이는 본 발명이 속하는 기술 분야에서 통상의 지식을 가진 가가 발명을 용이하게 실시할수 있을 정도로 상세하게 설명하기 위한 것이지, 이로 인해 본 발명의 기술적인 사상 및 범주가 한정되는 것을 의미하지는 않는 것이다.DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, preferred embodiments of the present invention will be described with reference to the accompanying drawings, which is intended to explain in detail enough to easily practice the present invention having ordinary knowledge in the technical field to which the present invention pertains. It is not intended that the technical spirit and scope of the invention be limited.

도 3 내지 도 5에 도시된 바와 같이, 본 발명의 실시예에 의한 건설기계의 유압배관 고정장치는,As shown in Figure 3 to 5, the hydraulic pipe fixing device of the construction machine according to an embodiment of the present invention,

붐 등의 작업장치에 공급되는 작동유의 흐름을 제어하는 메인 컨트롤밸브로부터의 작동유를 유압탱크 또는 오일쿨러로 복귀시키는 리턴배관을 포함하는 건설기계의 유압배관 고정장치에 있어서,In the hydraulic pipe fixing device of a construction machine including a return pipe for returning the hydraulic oil from the main control valve for controlling the flow of the hydraulic oil supplied to the working device such as a boom to the hydraulic tank or oil cooler,

메인 컨트롤밸브(1)(MCV)에 입구측이 이음연결되는 제1리턴이음관(10)과,A first return fitting pipe 10 having an inlet side connected to the main control valve 1 (MCV),

오일쿨러(5)에 출구측이 이음연결되는 제2리턴이음관(11)과,A second return pipe (11) to which the outlet side is connected to the oil cooler (5),

붐 등의 작업장치가 고정되는 프레임(12)과 선회모터(4)사이의 상부프레임(6)에 장착되고, 제1리턴이음관(10)의 출구측과 제2리턴이음관(11)의 입구측이 각각 이음연결되는 리턴배관용 블록(13)과,It is mounted to the upper frame 6 between the frame 12 and the swing motor 4 to which a working device such as a boom is fixed, and the outlet side of the first return pipe 10 and the second return pipe 11 A return pipe block 13 to which the inlet side is jointed, respectively,

리턴배관용 블록(13)에 입구측이 이음연결되고 유압탱크(2)에 출구측이 이음연결되는 제3리턴이음관(14)을 포함하여,Including a third return pipe 14, which is connected to the inlet side to the return pipe block 13 and the outlet side is connected to the hydraulic tank (2),

상부프레임(6)에 리턴배관용 블록(13)을 장착하여 제1,2리턴이음관(10,11)을 이음연결하고, 상부프레임(6)에 선회모터(4)를 장착 후 제3리턴이음관(14)을 리턴배관용 블록(13)과 유압탱크(2)에 각각 이음연결한다.The return pipe block 13 is mounted on the upper frame 6 to connect the first and second return pipes 10 and 11 to the upper frame 6, and the turning motor 4 is mounted on the upper frame 6 to the third return. The joint pipe 14 is jointly connected to the return pipe block 13 and the hydraulic tank 2, respectively.

전술한 리턴배관용 블록(13)은 메인 컨트롤밸브(1), 선회모터(4), 유압펌프 등에 대해 최적위치에 설치될 수 있도록 선회모터(4)의 전방으로 상부프레임(6)에 장착된다.The above-described return pipe block 13 is mounted to the upper frame 6 in front of the swing motor 4 so that the return pipe block 13 can be installed at an optimum position for the main control valve 1, the swing motor 4, the hydraulic pump, and the like. .

전술한 제3리턴이음관(14)으로 장비의 작업용량, 모델명 등에 따라 유압용 호스 또는 파이프가 사용된다.As the above-mentioned third return pipe 14, a hydraulic hose or pipe is used according to the working capacity of the equipment, the model name, and the like.

이하에서, 본 발명의 실시예에 의한 건설기계의 유압배관 고정장치의 사용예를 첨부된 도면을 참조하여 설명한다.Hereinafter, with reference to the accompanying drawings an example of the use of the hydraulic pipe fixing device of the construction machine according to an embodiment of the present invention.

도 5에 도시된 바와 같이, 붐 등의 작업장치가 회동가능하게 고정되는 프레임(12)과 선회모터(4)사이의 상부프레임(6)에 리턴배관용 블록(13)을 장착한다. 메인 컨트롤밸브(1)와 리턴배관용 블록(13)에 제1리턴이음관(10) 및 유압회로 구성을 위한 해당 배관을 설계된 유압회로에 따라 각각 이음연결한다.As shown in FIG. 5, a return pipe block 13 is mounted on the upper frame 6 between the frame 12 and the swing motor 4 to which a work device such as a boom is rotatably fixed. The first return joint pipe 10 and the corresponding pipes for the hydraulic circuit configuration are jointly connected to the main control valve 1 and the return pipe block 13 according to the designed hydraulic circuit.

리턴배관용 블록(13)과 오일쿨러(5)에 제2리턴이음관(11) 및 유압회로 구성을 위한 해당 부품을 설계된 유압회로에 따라 각각 이음연결한다.The return pipe block 13 and the oil cooler 5 are respectively connected to the second return pipe 11 and corresponding components for the hydraulic circuit configuration according to the designed hydraulic circuit.

이때, 제1리턴이음관(10)을 메인 컨트롤밸브(1)와 리턴배관용 블록(13)에 각각 이음연결하는 구성과, 제2리턴이음관(11)을 리턴배관용 블록(13)과 오일쿨러(5)에 각각 이음연결하는 구성은, 당해분야에서 사용되는 기술내용이므로 이들의 상세한 설명은 생략한다.At this time, the first return joint pipe 10 is connected to the main control valve 1 and the return pipe block 13, respectively, and the second return pipe 11 is connected to the return pipe block 13 and Each of the components connected to the oil cooler 5 are technical contents used in the art, and thus detailed description thereof is omitted.

선회모터(4)를 상부프레임(6)에 장착한 후, 제3리턴이음관(14)을 리턴배관용 블록(13)과 유압탱크(2)에 설계된 유압회로에 따라 각각 이음연결한다.After the swing motor 4 is mounted on the upper frame 6, the third return joint pipe 14 is jointed in accordance with the hydraulic circuit designed for the return pipe block 13 and the hydraulic tank 2, respectively.

이때, 제3리턴이음관(14)을 리턴배관용 블록(13)과 유압탱크(2)에 각각 이음연결하는 구성은 당해분야에서 사용되는 기술내용이므로 이들의 상세한 설명은 생략한다.At this time, the configuration of jointly connecting the third return pipe 14 to the return pipe block 13 and the hydraulic tank 2, respectively, so the detailed description thereof will be omitted.

한편, 작업장치 등에 공급되는 작동유의 흐름을 제어하는 메인 컨트롤밸 브(1)로부터의 작동유는 제1리턴이음관(10), 리턴배관용 블록(13), 제2리턴이음관(11), 오일쿨러(5), 드레인 관로(15)로 이루어지는 리턴라인을 차례로 경유하여 유압탱크(2)로 복귀된다.On the other hand, the hydraulic fluid from the main control valve (1) for controlling the flow of the hydraulic oil supplied to the working device is the first return pipe 10, the return pipe block 13, the second return pipe 11, It returns to the hydraulic tank 2 via the return line which consists of the oil cooler 5 and the drain line 15 in order.

또는 유압탱크(2)의 귀환라인에 일정압력 이상의 배압이 형성되는 경우, 메인 컨트롤밸브(1)로부터의 작동유는 제1리턴이음관(10), 리턴배관용 블록(13), 제3리턴이음관(14)으로 이루어지는 리턴라인을 차례로 경유하여 유압탱크(2)로 복귀된다.Alternatively, when back pressure of a predetermined pressure or more is formed in the return line of the hydraulic tank 2, the hydraulic oil from the main control valve 1 is supplied to the first return pipe 10, the return pipe block 13, and the third return. It returns to the hydraulic tank 2 via the return line which consists of the sound pipes 14 in order.

전술한 바와 같이, 선회모터(4)를 상부프레임(6)에 장착하기 전에 상부프레임(6)에 장착되는 리턴배관용 블록(13)을 이용하여 메인 컨트롤밸브(1)와 오일쿨러(5)에 제1,2리턴이음관(10,11)을 이음연결하는 제1작업공정과, 선회모터(4)를 상부프레임(6)에 장착한 후 제3리턴이음관(14)을 리턴배관용 블록(13)과 유압탱크(2)에 이음결하는 제2작업공정으로 세분화시켜 작업할 수 있다.As described above, the main control valve 1 and the oil cooler 5 using the return pipe block 13 mounted on the upper frame 6 before the swing motor 4 is mounted on the upper frame 6. The first work process of connecting the first and second return pipe (10, 11) to the fitting, and the return motor (14) after mounting the turning motor (4) to the upper frame (6) for return piping The work can be broken down into a second working process connecting the block 13 and the hydraulic tank 2.

이로 인해 소선회형 장비에서와 같이 상부프레임(6)의 작업공간이 협소한 경우에도 작업공간을 확보하여 배관 사이즈가 큰 리턴배관을 용이하게 이음연결할 수 있다.Because of this, even in the case where the working space of the upper frame 6 is narrow as in the small swing type equipment, it is possible to easily connect the return pipe having a large pipe size by securing a working space.

도 1은 종래 기술에 의한 건설기계의 유압배관 고정장치의 개략도,1 is a schematic view of a hydraulic pipe fixing device of a construction machine according to the prior art,

도 2는 종래 기술에 의한 건설기계의 유압배관 고정장치의 변형예시도,Figure 2 is a modified example of the hydraulic pipe fixing device of the construction machine according to the prior art,

도 3은 본 발명의 실시예에 의한 건설기계의 유압배관 고정장치에서 선회모터를 상부프레임에 장착하기 전 단계의 개략도,3 is a schematic diagram of a step before mounting the swing motor to the upper frame in the hydraulic pipe fixing device of the construction machine according to an embodiment of the present invention,

도 4는 본 발명의 실시예에 의한 건설기계의 유압배관 고정장치의 사용상태도,4 is a state of use of the hydraulic pipe fixing device of the construction machine according to an embodiment of the present invention,

도 5는 본 발명의 실시예에 의한 건설기계의 유압배관 고정장치의 평면도이다.5 is a plan view of a hydraulic pipe fixing device of a construction machine according to an embodiment of the present invention.

*도면중 주요 부분에 사용된 부호의 설명* Explanation of symbols used in the main part of the drawing

1; 메인 컨트롤밸브(MCV)One; Main control valve (MCV)

2; 유압탱크2; Hydraulic tank

4; 선회모터4; Turning motor

5; 오일쿨러5; Oil cooler

6; 상부프레임6; Upper frame

10; 제1리턴이음관10; 1st Return Joint

11; 제2리턴이음관11; 2nd return joint pipe

12; 프레임12; frame

13; 리턴배관용 블록13; Return piping block

14; 제3리턴이음관14; 3rd Return Joint

Claims (3)

메인 컨트롤밸브로부터 작동유를 유압탱크 또는 오일쿨러로 복귀시키는 리턴배관을 포함하는 건설기계의 유압배관 고정장치에 있어서:In a hydraulic piping fixture of a construction machine comprising a return piping for returning hydraulic oil from a main control valve to a hydraulic tank or an oil cooler: 상기 메인 컨트롤밸브에 입구측이 이음연결되는 제1리턴이음관;A first return joint pipe having an inlet side connected to the main control valve; 상기 오일쿨러에 출구측이 이음연결되는 제2리턴이음관;A second return fitting tube having an outlet side connected to the oil cooler; 작업장치가 고정되는 프레임과 선회모터사이의 상부프레임에 장착되고, 제1리턴이음관의 출구측과 제2리턴이음관의 입구측이 각각 이음연결되는 리턴배관용 블록; 및A return pipe block mounted on an upper frame between the frame to which the work device is fixed and the swing motor, and the outlet side of the first return joint pipe and the inlet side of the second return joint pipe are connected to each other; And 상기 리턴배관용 블록에 입구측이 이음연결되고 유압탱크에 출구측이 이음연결되는 제3리턴이음관을 포함하여,Including a third return joint pipe is connected to the inlet side to the return pipe block and the outlet side is connected to the hydraulic tank, 상기 상부프레임에 리턴배관용 블록을 장착하여 제1,2리턴이음관을 이음연결하고, 상부프레임에 선회모터를 장착 후 제3리턴이음관을 리턴배관용 블록과 유압탱크에 이음연결하는 것을 특징으로 하는 건설기계의 유압배관 고정장치.Mounting the return pipe block on the upper frame to connect the first and second return pipe joint, and after mounting the swing motor on the upper frame, the third return pipe is connected to the return pipe block and the hydraulic tank Hydraulic piping fixing device for construction machinery. 청구항 1에 있어서, 상기 리턴배관용 블록은 선회모터의 전방으로 상부프레임에 장착되는 것을 특징으로 하는 건설기계의 유압배관 고정장치.The hydraulic pipe fixing device of claim 1, wherein the return pipe block is mounted to the upper frame in front of the swing motor. 청구항 1에 있어서, 상기 제3리턴이음관으로 유압용 호스 또는 파이프가 사용되는 것을 특징으로 하는 건설기계의 유압배관 고정장치.The hydraulic pipe fixing device of claim 1, wherein a hydraulic hose or a pipe is used as the third return pipe.
KR1020080020030A 2008-03-04 2008-03-04 fixing device of hydraulic pipe of construction machine KR100974277B1 (en)

Priority Applications (5)

Application Number Priority Date Filing Date Title
KR1020080020030A KR100974277B1 (en) 2008-03-04 2008-03-04 fixing device of hydraulic pipe of construction machine
EP09002909.1A EP2098644A3 (en) 2008-03-04 2009-02-28 Apparatus for fixing hydraulic pipes for construction equipment
CN2009101186971A CN101525889B (en) 2008-03-04 2009-03-03 Apparatus for fixing hydraulic pipes for construction equipment
JP2009048738A JP5401122B2 (en) 2008-03-04 2009-03-03 Hydraulic piping fixing device for construction machinery
US12/397,437 US20090223582A1 (en) 2008-03-04 2009-03-04 Apparatus for fixing hydraulic pipes for construction equipment

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Application Number Priority Date Filing Date Title
KR1020080020030A KR100974277B1 (en) 2008-03-04 2008-03-04 fixing device of hydraulic pipe of construction machine

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KR20090094990A KR20090094990A (en) 2009-09-09
KR100974277B1 true KR100974277B1 (en) 2010-08-06

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US (1) US20090223582A1 (en)
EP (1) EP2098644A3 (en)
JP (1) JP5401122B2 (en)
KR (1) KR100974277B1 (en)
CN (1) CN101525889B (en)

Cited By (1)

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CN101525889A (en) 2009-09-09
EP2098644A3 (en) 2017-01-04
JP2009209679A (en) 2009-09-17
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KR20090094990A (en) 2009-09-09
JP5401122B2 (en) 2014-01-29

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