JP2009209679A - Fixing device of hydraulic piping in construction machinery - Google Patents

Fixing device of hydraulic piping in construction machinery Download PDF

Info

Publication number
JP2009209679A
JP2009209679A JP2009048738A JP2009048738A JP2009209679A JP 2009209679 A JP2009209679 A JP 2009209679A JP 2009048738 A JP2009048738 A JP 2009048738A JP 2009048738 A JP2009048738 A JP 2009048738A JP 2009209679 A JP2009209679 A JP 2009209679A
Authority
JP
Japan
Prior art keywords
return
hydraulic
pipe
joint pipe
upper frame
Prior art date
Legal status (The legal status 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 status listed.)
Granted
Application number
JP2009048738A
Other languages
Japanese (ja)
Other versions
JP5401122B2 (en
Inventor
Joon Seog Go
セオグ ゴ ジョン
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Volvo Construction Equipment AB
Original Assignee
Volvo Construction Equipment AB
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.)
Filing date
Publication date
Application filed by Volvo Construction Equipment AB filed Critical Volvo Construction Equipment AB
Publication of JP2009209679A publication Critical patent/JP2009209679A/en
Application granted granted Critical
Publication of JP5401122B2 publication Critical patent/JP5401122B2/en
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Images

Classifications

    • E—FIXED CONSTRUCTIONS
    • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02F—DREDGING; SOIL-SHIFTING
    • E02F9/00—Component parts of dredgers or soil-shifting machines, not restricted to one of the kinds covered by groups E02F3/00 - E02F7/00
    • 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

Abstract

<P>PROBLEM TO BE SOLVED: To provide a fixing device of hydraulic piping in construction machinery capable of connecting a return piping which is for returning hydraulic fluid in a main control valve to a hydraulic tank or the like without interfering a slewing motor. <P>SOLUTION: A fixing device of hydraulic piping contains a first return joint pipe for connecting an inlet with a main control valve, a second return joint pipe 11 for connecting an outlet of the first return joint pipe with an oil cooler 5, a return piping block 13 for respectively connecting the outlet of the first return joint pipe and the inlet of the second return joint pipe 11, and a third return joint pipe 14 for connecting the inlet with the return piping block 13 and for connecting the outlet with a hydraulic tank 2. The return piping block 13 is installed on an upper frame 6 which is between the frame 6 where a work device is fixed and a slewing motor, the first and second joint pipes are respectively connected, the turning motor is installed on the upper frame 6, and the third return joint pipe 14 is respectively connected with the return piping block 13 and with the hydraulic tank 2. <P>COPYRIGHT: (C)2009,JPO&INPIT

Description

本発明は、作業装置などに供給される作動油の流れを制御する主制御弁(ＭＣＶ)の作動油を油圧タンクに戻すためのリターン配管を上部フレームの狭小な作業空間にでも容易に繋ぎ連結することができるようにした建設機械の油圧配管固定装置に係る。   In the present invention, the return pipe for returning the hydraulic oil of the main control valve (MCV) that controls the flow of hydraulic oil supplied to the working device or the like to the hydraulic tank is easily connected and connected even in a narrow working space of the upper frame. The present invention relates to a hydraulic pipe fixing device for a construction machine that can be used.

さらに詳しく説明すれば、小旋回型建設機械などのように、上部フレームの狭小な作業空間で大きいサイズのリターン配管を油圧タンクに繋ぎ連結する場合、主制御弁の作動油を油圧タンクなどに戻すためのリターン配管用ブロックにより、旋回モータなどによる干渉を受けることなく、繋ぎ連結作業を行うことができる建設機械の油圧配管固定装置に係る。   More specifically, when connecting a large return pipe to a hydraulic tank in a narrow work space in the upper frame, such as a small turning construction machine, the hydraulic fluid of the main control valve is returned to the hydraulic tank. The present invention relates to a hydraulic piping fixing device for a construction machine that can perform a connecting and connecting operation without receiving interference from a swing motor or the like by a return piping block.

一般に、旋回式掘削機は、標準型または小旋回型に分けられる。
標準型の旋回式掘削機とは、上部フレームが下部走行体に対して前後方向に向かう姿勢(作業装置が下部走行体の走行方向に向かう姿勢)の場合は、上部フレームの後端部が下部走行体の前・後部(走行方向の端部)よりも外部に突出しており、且つ、上部フレームが下部走行体に対して横方向に向かう姿勢(作業装置が下部走行体の走行方向と直角方向に向く姿勢)の場合は、上部フレームの後端部が下部走行体の左・右側部(走行方向と直角方向の端部)よりも外部に突出する機械をいう。 Generally, the swivel excavator is classified into a standard type or a small swivel type.
In the standard type swivel excavator, the rear end of the upper frame is the lower part when the upper frame is in the front-rear direction with respect to the lower traveling body (the working device is in the traveling direction of the lower traveling body). Projecting outward from the front / rear part (end of the running direction) of the traveling body, and the posture in which the upper frame is directed laterally with respect to the lower traveling body (the working device is perpendicular to the traveling direction of the lower traveling body) The rear end of the upper frame means a machine that protrudes to the outside from the left and right sides (ends perpendicular to the running direction) of the lower running body.

したがって、上部フレームの後端部から旋回中心までの距離が長く、上部フレームの後回転モーメントが大きいので、作業装置の掘削力により生じる前回転モーメントにより転倒しにくい。そのことから、大きい掘削力が可能となるので、作業性の向上が図れる。   Therefore, since the distance from the rear end of the upper frame to the turning center is long and the rear rotation moment of the upper frame is large, it is difficult to fall down due to the front rotation moment generated by the excavating force of the work device. As a result, a large excavation force is possible, so that workability can be improved.

図１に示したように従来技術による建設機械の油圧配管固定装置は、
作業装置などに供給される作動油の流れを制御する主制御弁１からの作動油をオイルクーラー(図示せず)を経て油圧タンク２に戻したり、または油圧タンク２のリターンラインに一定圧力以上の背圧が形成される場合、主制御弁１からの作動油をオイルクーラーを通さずに油圧タンク２に戻すリターン配管３を包含する。 As shown in FIG. 1, the hydraulic pipe fixing device for a construction machine according to the prior art is
The hydraulic oil from the main control valve 1 that controls the flow of the hydraulic oil supplied to the work device or the like is returned to the hydraulic tank 2 through an oil cooler (not shown), or more than a certain pressure in the return line of the hydraulic tank 2 When the back pressure of 1 is formed, a return pipe 3 that returns the hydraulic oil from the main control valve 1 to the hydraulic tank 2 without passing through the oil cooler is included.

この際、リターン配管３は、上部フレームにおける作業空間が狭いため、旋回モータ４を避けて接続される。   At this time, the return pipe 3 is connected to avoid the turning motor 4 because the work space in the upper frame is narrow.

図２に示したように、従来技術による建設機械(小旋回型機械をいう)の油圧配管固定装置は、
小旋回型機械の特性上、上部フレーム６における作業空間を充分確保し得ないので、旋回モータ４を避けてリターン配管３を設置することになる。これにより、該当配管を単一体のホース(１ ｐｉｅｃｅ ｈｏｓｅ)を用いて連結したり、または油圧タンク２の前方空間を活用してリターン配管３を油圧タンク２の側面に繋ぎ連結する。 As shown in FIG. 2, a hydraulic pipe fixing device for a construction machine (referred to as a small turning type machine) according to the prior art is
Since the working space in the upper frame 6 cannot be secured due to the characteristics of the small turning machine, the return pipe 3 is installed avoiding the turning motor 4. Accordingly, the corresponding pipe is connected using a single hose (1 piece hose), or the return pipe 3 is connected and connected to the side surface of the hydraulic tank 2 using the front space of the hydraulic tank 2.

この際、オイルクーラー５に連結されるリターン配管３は、旋回モータ４の外側面に密着した状態で配置されるので、旋回モータ４を上部フレーム６に先に装着してから、リターン配管３を繋ぎ連結する。これにより、リターン配管３の繋ぎ連結時、旋回モータ４に連結してある油圧配管の干渉を受けることになるので、作業能率が低下する。   At this time, since the return pipe 3 connected to the oil cooler 5 is disposed in close contact with the outer surface of the swing motor 4, the return pipe 3 is mounted after the swing motor 4 is first attached to the upper frame 6. Connect and connect. Accordingly, when the return pipe 3 is connected and connected, the hydraulic pipe connected to the turning motor 4 is subjected to interference, so that the work efficiency is lowered.

一方、小旋回型機械においても、機械の活用度を極大化することができるようにオプション装置(ハンマー、シャー、クイックフィットなどをいう)を交換して作業を行う頻度数が増加している。また、リターン配管３の配管サイズが増加することにより、上部フレーム６の作業空間がさらに狭小となり、空間活用が難しくなる。それゆえ、リターン配管３が旋回モータ４の前方に配設されるように設計することになる。   On the other hand, even in a small turning type machine, the frequency of performing work by exchanging optional devices (referred to as hammer, shear, quick fit, etc.) is increasing so that the degree of utilization of the machine can be maximized. Moreover, when the pipe size of the return pipe 3 is increased, the work space of the upper frame 6 is further reduced, making it difficult to use the space. Therefore, the return pipe 3 is designed to be disposed in front of the turning motor 4.

即ち、旋回モータ４と作業装置の固定部との間における作業空間を充分に確保することが難しいので、リターン配管３を繋ぎ連結するための作業時間が増加し、作業能率が低下する。また、狭小な作業空間で作業を行うので、作業者の安全を脅かすという問題点をも抱えている。   That is, since it is difficult to ensure a sufficient working space between the turning motor 4 and the fixed portion of the working device, the working time for connecting and connecting the return pipe 3 increases, and the working efficiency decreases. Further, since the work is performed in a narrow work space, there is a problem that the safety of the worker is threatened.

本発明の実施例は、上部フレームの作業空間が狭小な環境で大きいサイズのリターン配管を油圧タンクに繋ぎ連結する場合、主制御弁の作動油を油圧タンクなどに復帰させるリターン配管用ブロックにより、旋回モータなどの干渉を受けないので、作業時間を短縮し、且つ、作業空間を確保することができるようにした建設機械の油圧配管固定装置に係る。   In the embodiment of the present invention, when a large return pipe is connected to a hydraulic tank in an environment where the work space of the upper frame is small, the return pipe block for returning the hydraulic oil of the main control valve to the hydraulic tank or the like is used. The present invention relates to a hydraulic pipe fixing device for a construction machine that is capable of reducing work time and securing a work space because it is not affected by a swing motor or the like.

本発明の実施例による建設機械の油圧配管固定装置は、
主制御弁から作動油を油圧タンクまたはオイルクーラーに戻すためのリターン配管を包含する建設機械の油圧配管固定装置において、
主制御弁に入口側が繋ぎ連結される第１リターン継手管と、
オイルクーラーに出口側が繋ぎ連結される第２リターン継手管と、
作業装置が固定されるフレームと旋回モータとの間の上部フレーム上に装着され、第１リターン継手管の出口側と第２リターン継手管の入口側がそれぞれ繋ぎ連結されるリターン配管用ブロックと、
リターン配管用ブロックに入口側が繋ぎ連結され、油圧タンクに出口側が繋ぎ連結される第３リターン継手管とを包含し、
上部フレームの上にリターン配管用ブロックを装着し、第１、２リターン継手管をそれぞれ繋ぎ連結し、上部フレームの上に旋回モータを装着したあと、第３リターン継手管をリターン配管用ブロックと油圧タンクとにそれぞれ繋ぎ連結する。 The hydraulic pipe fixing device for construction machine according to the embodiment of the present invention is:
In a hydraulic pipe fixing device for construction machinery including a return pipe for returning hydraulic oil from a main control valve to a hydraulic tank or an oil cooler,
A first return joint pipe connected at the inlet side to the main control valve;
A second return joint pipe whose outlet side is connected and connected to the oil cooler;
A return pipe block mounted on the upper frame between the frame on 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 and connected;
Including a third return joint pipe connected to the return piping block at the inlet side and connected to the hydraulic tank at the outlet side;
Install the return piping block on the upper frame, connect and connect the first and second return joint pipes, install the swing motor on the upper frame, and then connect the third return joint pipe to the return pipe block and hydraulic pressure. Connect to the tank.

望ましい実施例によれば、前述したリターン配管用ブロックは、旋回モータの前方において上部フレームの上に装着される。   According to a preferred embodiment, the aforementioned return piping block is mounted on the upper frame in front of the turning motor.

前述した第３リターン継手管として、油圧用ホースまたはパイプが用いられる。   A hydraulic hose or pipe is used as the third return joint pipe described above.

前述したように構成される本発明の実施例による建設機械の油圧配管固定装置は、次のような利点を有する。
上部フレームの作業空間が狭小な環境で大きいサイズのリターン配管を油圧タンクに繋ぎ連結する場合、主制御弁の作動油を油圧タンクなどに戻すリターン配管用ブロックにより、旋回モータを組立てる作業工程を簡略化することができ、作業時間を短縮し得る。また、作業空間を確保することが可能となるので、作業能率の向上が図れる。 The hydraulic pipe fixing device for a construction machine according to the embodiment of the present invention configured as described above has the following advantages.
When connecting a large return pipe to a hydraulic tank in an environment where the work space of the upper frame is confined, the work process of assembling the swing motor is simplified by the return pipe block that returns the hydraulic oil of the main control valve to the hydraulic tank. The working time can be shortened. In addition, since a work space can be secured, work efficiency can be improved.

従来技術による建設機械の油圧配管固定装置の概略図である。It is the schematic of the hydraulic piping fixing apparatus of the construction machine by a prior art. 従来技術による建設機械の油圧配管固定装置の変形例示図である。It is a modification example figure of the hydraulic piping fixing device of the construction machine by a prior art. 本発明の実施例による建設機械の油圧配管固定装置において旋回モータを上部フレームに装着する前の段階の概略図である。FIG. 3 is a schematic view of a stage before the swing motor is mounted on the upper frame in the hydraulic pipe fixing device for a construction machine according to the embodiment of the present invention. 本発明の実施例による建設機械の油圧配管固定装置の使用状態図である。It is a use state figure of the hydraulic piping fixing apparatus of the construction machine by the Example of this invention. 本発明の実施例による建設機械の油圧配管固定装置の平面図である。It is a top view of the hydraulic piping fixing apparatus of the construction machine by the Example of this invention.

以下、本発明の望ましい実施例を添付図面に基づいて説明するが、これは、本発明が属する技術分野において通常の知識を有する者が発明を容易に実施し得る程度に詳細に説明するためのものであって、これに本発明の技術的思想及び範疇が限られるものではない。   Hereinafter, preferred embodiments of the present invention will be described with reference to the accompanying drawings, for the purpose of explaining in detail so that those skilled in the art to which the present invention can easily practice the invention. However, the technical idea and category of the present invention are not limited thereto.

図３ないし５に示したように、本発明の実施例による建設機械の油圧配管固定装置は、
ブームなどの作業装置に供給される作動油の流れを制御する主制御弁からの作動油を油圧タンクまたはオイルクーラーに戻すためのリターン配管を包含する建設機械の油圧配管固定装置において、
主制御弁１に入口側が繋ぎ連結される第１リターン継手管１０と、
オイルクーラー５に出口側が繋ぎ連結される第２リターン継手管１１と、
ブームなどの作業装置が取り付けられるフレーム１２と旋回モータ４との間の上部フレーム６上に装着され、第１リターン継手管１０の出口側と第２リターン継手管１１の入口側がそれぞれ繋ぎ連結されるリターン配管用ブロック１３と、
リターン配管用ブロック１３に入口側が連結され、油圧タンク２に出口側が繋ぎ連結される第３リターン継手管１４とを包含し、
上部フレーム６の上にリターン配管用ブロック１３を装着し、第１、２リターン継手管１０、１１をそれぞれ連結し、上部フレーム６の上に旋回モータ４を装着したあと、次いで第３リターン継手管１４をリターン配管用ブロック１３と油圧タンク２とにそれぞれ繋ぎ連結する。 As shown in FIGS. 3 to 5, the hydraulic pipe fixing device for a construction machine according to the embodiment of the present invention is
In a hydraulic pipe fixing device for a construction machine including a return pipe for returning hydraulic oil from a main control valve that controls a flow of hydraulic oil supplied to a working device such as a boom to a hydraulic tank or an oil cooler,
A first return joint pipe 10 whose inlet side is connected to the main control valve 1;
A second return joint pipe 11 whose outlet side is connected and connected to the oil cooler 5;
It is mounted on the upper frame 6 between the frame 12 to which a working device such as a boom is attached and the turning motor 4, and the outlet side of the first return joint pipe 10 and the inlet side of the second return joint pipe 11 are connected to each other. Return piping block 13;
A third return joint pipe 14 having an inlet side connected to the return piping block 13 and an outlet side connected to the hydraulic tank 2;
The return pipe block 13 is mounted on the upper frame 6, the first and second return joint pipes 10 and 11 are connected, the swing motor 4 is mounted on the upper frame 6, and then the third return joint pipe. 14 are connected and connected to the return piping block 13 and the hydraulic tank 2, respectively.

前述したリターン配管用ブロック１３は、主制御弁１、旋回モータ４、油圧ポンプなどに対して最適位置に設けられるように旋回モータ４の前方において上部フレーム６の上に装着される。   The aforementioned return piping block 13 is mounted on the upper frame 6 in front of the swing motor 4 so as to be provided at an optimum position with respect to the main control valve 1, the swing motor 4, the hydraulic pump, and the like.

前述した第３リターン継手管１４として、建設機械の作業容量、モデル名などによって油圧用ホース又はパイプが用いられる。   As the third return joint pipe 14 described above, a hydraulic hose or pipe is used depending on the working capacity of the construction machine, the model name, and the like.

以下では、本発明の実施例による建設機械の油圧配管固定装置の使用例について添付図面を参照して説明する。
図５に示したように、ブームなどの作業装置が回動可能に取り付けられるフレーム１２と旋回モータ４との間の上部フレーム６上にリターン配管用ブロック１３を装着する。主制御弁１とリターン配管用ブロック１３に第１リターン継手管１０及び油圧回路構成のための該当配管を設計油圧回路に応じてそれぞれ繋ぎ連結する。 Below, the usage example of the hydraulic piping fixing apparatus of the construction machine by the Example of this invention is demonstrated with reference to an accompanying drawing.
As shown in FIG. 5, the return piping block 13 is mounted on the upper frame 6 between the frame 12 to which a working device such as a boom is rotatably attached and the turning motor 4. The main return valve 10 and the return pipe block 13 are connected to the first return joint pipe 10 and the corresponding pipe for the hydraulic circuit configuration according to the designed hydraulic circuit.

リターン配管用ブロック１３とオイルクーラー５に第２リターン継手管１１及び油圧回路構成のための該当配管を設計油圧回路に応じてそれぞれ繋ぎ連結する。   The return pipe block 13 and the oil cooler 5 are connected and connected to the second return joint pipe 11 and the corresponding pipe for hydraulic circuit configuration according to the design hydraulic circuit.

この際、第１リターン継手管１０を主制御弁１とリターン配管用ブロック１３にそれぞれ繋ぎ連結する構成と、第２リターン継手管１１をリターン配管用ブロック１３とオイルクーラー５にそれぞれ繋ぎ連結する構成は、当該分野に於いて使用される技術内容であるので、これらに対する詳しい説明は省略する。   At this time, the first return joint pipe 10 is connected and connected to the main control valve 1 and the return pipe block 13, and the second return joint pipe 11 is connected and connected to the return pipe block 13 and the oil cooler 5. Are technical contents used in this field, and detailed description thereof will be omitted.

旋回モータ４を上部フレーム６の上に装着した後、第３リターン継手管１４をリターン配管用ブロック１３と油圧タンク２に設計油圧回路に応じてそれぞれ繋ぎ連結する。   After the turning motor 4 is mounted on the upper frame 6, the third return joint pipe 14 is connected and connected to the return pipe block 13 and the hydraulic tank 2 according to the designed hydraulic circuit.

この際、第３リターン継手管１４をリターン配管用ブロック１３と油圧タンク２とにそれぞれ繋ぎ連結する構成は、当該分野に於いて使用される技術内容であるので、これらに対する詳しい説明は省略する。   At this time, the configuration in which the third return joint pipe 14 is connected and connected to the return pipe block 13 and the hydraulic tank 2 is a technical content used in this field, and thus detailed description thereof will be omitted.

一方、作業装置などに供給される作動油の流れを制御する主制御弁１からの作動油は、第１リターン継手管１０と、リターン配管用ブロック１３と、第２リターン継手管１１と、オイルクーラー５と、ドレーン管路１５とからなるリターンラインを次々と経由し、油圧タンクに戻ることになる。   On the other hand, the hydraulic fluid from the main control valve 1 that controls the flow of hydraulic fluid supplied to the working device or the like includes the first return joint pipe 10, the return pipe block 13, the second return joint pipe 11, and the oil. It will return to a hydraulic tank via the return line which consists of the cooler 5 and the drain pipe line 15 one after another.

又は、油圧タンク２のリターンラインに一定圧力以上の背圧が形成される場合、主制御弁１からの作動油は、第１リターン継手管１０と、リターン配管用ブロック１３と、第３リターン継手管１４とからなるリターンラインを次々と経由し、油圧タンク２に戻ることになる。   Alternatively, when a back pressure equal to or higher than a certain pressure is formed in the return line of the hydraulic tank 2, the hydraulic oil from the main control valve 1 is used for the first return joint pipe 10, the return pipe block 13, and the third return joint. It returns to the hydraulic tank 2 through the return line composed of the pipe 14 one after another.

前述したように、旋回モータ４を上部フレーム６の上に装着する前に、上部フレーム６上に装着されるリターン配管用ブロック１３を介して、主制御弁１とオイルクーラー５に第１、２リターン継手管１０、１１をそれぞれ繋ぎ連結する第１作業工程と、旋回モータ４を上部フレーム６の上に装着した後、第３リターン継手管１４をリターン配管用ブロック１３と油圧タンク２にそれぞれ繋ぎ連結する第２作業工程とに細分化して作業を行うことができる。   As described above, before the swing motor 4 is mounted on the upper frame 6, the main control valve 1 and the oil cooler 5 are connected to the first and second via the return piping block 13 mounted on the upper frame 6. After the first work process for connecting and connecting the return joint pipes 10 and 11 respectively, and after mounting the turning motor 4 on the upper frame 6, the third return joint pipe 14 is connected to the return pipe block 13 and the hydraulic tank 2, respectively. It is possible to work by subdividing into the second work process to be connected.

そのことから、小旋回型機械のように上部フレーム６の狭小な作業空間にでも大きいサイズの配管を容易に繋ぎ連結することが可能となる。   As a result, it is possible to easily connect and connect large-sized pipes to a narrow work space of the upper frame 6 as in a small turning type machine.

１ 主制御弁(ＭＣＶ)
２ 油圧タンク
４ 旋回モータ
５ オイルクーラー
６ 上部フレーム
１０ 第１リターン継手管
１１ 第２リターン継手管
１２ フレーム
１３ リターン配管用ブロック
１４ 第３リターン継手管 1 Main control valve (MCV)
2 Hydraulic tank 4 Rotating motor 5 Oil cooler 6 Upper frame 10 First return joint pipe 11 Second return joint pipe 12 Frame 13 Return piping block 14 Third return joint pipe

Claims (3)

主制御弁から作動油を油圧タンクまたはオイルクーラーに戻すためのリターン配管を包含する建設機械の油圧配管固定装置において、
前記主制御弁に入口側が繋ぎ連結される第１リターン継手管と、
前記オイルクーラーに出口側が繋ぎ連結される第２リターン継手管と、
作業装置が取り付けられるフレームと旋回モータとの間の上部フレーム上に装着され、第１リターン継手管の出口側と第２リターン継手管の入口側がそれぞれ繋ぎ連結されるリターン配管用ブロック及び、
前記リターン配管用ブロックに入口側が繋ぎ連結され、油圧タンクに出口側が繋ぎ連結される第３リターン継手管を包含し、
前記上部フレーム上にリターン配管用ブロック１３を装着し、第１、２リターン継手管をそれぞれ繋ぎ連結し、上部フレーム上に旋回モータを装着した後、第３リターン継手管をリターン配管用ブロックと油圧タンクにそれぞれ繋ぎ連結することを特徴とする建設機械の油圧配管固定装置。 In a hydraulic pipe fixing device for construction machinery including a return pipe for returning hydraulic oil from a main control valve to a hydraulic tank or an oil cooler,
A first return joint pipe connected at the inlet side to the main control valve;
A second return joint pipe having an outlet side connected to and connected to the oil cooler;
A return pipe block mounted on the upper frame between the frame on which the working device is mounted and the swing motor, wherein the outlet side of the first return joint pipe and the inlet side of the second return joint pipe are connected and connected;
A third return joint pipe connected to the return pipe block at the inlet side and connected to the hydraulic tank at the outlet side;
The return pipe block 13 is mounted on the upper frame, the first and second return joint pipes are connected and connected, and the swing motor is mounted on the upper frame, and then the third return joint pipe is hydraulically connected to the return pipe block. A hydraulic piping fixing device for a construction machine, characterized in that each tank is connected and connected. 前記リターン配管用ブロックは、旋回モータの前方において上部フレームの上に装着されることを特徴とする請求項１に記載の建設機械の油圧配管固定装置。   The hydraulic piping fixing device for a construction machine according to claim 1, wherein the return piping block is mounted on the upper frame in front of the swing motor. 前記第３リターン継手管として油圧用ホースまたはパイプが使用されることを特徴とする請求項１に記載の建設機械の油圧配管固定装置。   2. The hydraulic piping fixing device for a construction machine according to claim 1, wherein a hydraulic hose or pipe is used as the third return joint pipe.
JP2009048738A 2008-03-04 2009-03-03 Hydraulic piping fixing device for construction machinery Expired - Fee Related JP5401122B2 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
KR1020080020030A KR100974277B1 (en) 2008-03-04 2008-03-04 fixing device of hydraulic pipe of construction machine
KR10-2008-0020030 2008-03-04

Publications (2)

Publication Number Publication Date
JP2009209679A true JP2009209679A (en) 2009-09-17
JP5401122B2 JP5401122B2 (en) 2014-01-29

Family

ID=40600309

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2009048738A Expired - Fee Related JP5401122B2 (en) 2008-03-04 2009-03-03 Hydraulic piping fixing device for construction machinery

Country Status (5)

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

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2013064254A (en) * 2011-09-16 2013-04-11 Kobelco Contstruction Machinery Ltd Construction machine
JP2014037692A (en) * 2012-08-13 2014-02-27 Hitachi Constr Mach Co Ltd Working machine
US9307933B2 (en) 2010-06-24 2016-04-12 Sysmex Corporation Micropore forming apparatus and micropore forming method

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP5891699B2 (en) * 2011-10-13 2016-03-23 コベルコ建機株式会社 Work machine
WO2014003219A1 (en) * 2012-06-28 2014-01-03 볼보 컨스트럭션 이큅먼트 에이비 Hydraulic pipe fixing device for construction machinery
JP5865313B2 (en) * 2013-08-21 2016-02-17 日立建機株式会社 Construction machinery

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH07127095A (en) * 1993-11-09 1995-05-16 Yanmar Diesel Engine Co Ltd Turning type excavating work vehicle
JPH0953530A (en) * 1995-08-15 1997-02-25 Hitachi Constr Mach Co Ltd Working oil tank device
JP2007002446A (en) * 2005-06-22 2007-01-11 Kobelco Contstruction Machinery Ltd Hydraulic piping structure of slewing type working machine
JP2008019675A (en) * 2006-07-14 2008-01-31 Kobelco Contstruction Machinery Ltd Return circuit for construction machine

Family Cites Families (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4050596A (en) * 1975-07-24 1977-09-27 Control Concepts, Inc. Electrohydraulic valve assembly for front end loader attachment to farm tractor
US4096878A (en) * 1976-04-09 1978-06-27 Caterpillar Tractor Co. Valve group subassembly
US4320783A (en) * 1980-01-17 1982-03-23 Caterpillar Tractor Co. Stabilized hose assembly for transmitting fluid
US4310026A (en) * 1980-01-22 1982-01-12 International Harvester Company Remote control arrangement for flow rate valve
US4349046A (en) * 1980-09-15 1982-09-14 International Harvester Co. Hydraulic valve block mounting
US4804055A (en) * 1987-09-18 1989-02-14 Valmet Oy Tractor attachment
JPH0564243U (en) * 1992-02-05 1993-08-27 小松ゼノア株式会社 Swivel joint
JP2601835Y2 (en) * 1993-10-26 1999-12-06 三和シヤッター工業株式会社 Roof panel mounting structure
JPH09328778A (en) * 1996-06-12 1997-12-22 Hitachi Constr Mach Co Ltd Swivel joint of construction machine
JPH1172101A (en) * 1997-08-28 1999-03-16 Yutani Heavy Ind Ltd Return oil circuit device of hydraulic cylinder
US6688328B2 (en) * 2002-01-07 2004-02-10 Force America Inc. Valve and tank enclosure assembly
US7798738B2 (en) * 2003-12-18 2010-09-21 Hitachi Construction Machinery Co., Ltd. Swivel joint for construction machine
US7631442B2 (en) * 2005-03-01 2009-12-15 Louis Berkman Winter Products Company Modular hydraulic power mechanism
KR100800080B1 (en) * 2006-08-11 2008-02-01 볼보 컨스트럭션 이키프먼트 홀딩 스웨덴 에이비 Hydraulic circuit of construction machine

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH07127095A (en) * 1993-11-09 1995-05-16 Yanmar Diesel Engine Co Ltd Turning type excavating work vehicle
JPH0953530A (en) * 1995-08-15 1997-02-25 Hitachi Constr Mach Co Ltd Working oil tank device
JP2007002446A (en) * 2005-06-22 2007-01-11 Kobelco Contstruction Machinery Ltd Hydraulic piping structure of slewing type working machine
JP2008019675A (en) * 2006-07-14 2008-01-31 Kobelco Contstruction Machinery Ltd Return circuit for construction machine

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US9307933B2 (en) 2010-06-24 2016-04-12 Sysmex Corporation Micropore forming apparatus and micropore forming method
JP2013064254A (en) * 2011-09-16 2013-04-11 Kobelco Contstruction Machinery Ltd Construction machine
JP2014037692A (en) * 2012-08-13 2014-02-27 Hitachi Constr Mach Co Ltd Working machine

Also Published As

Publication number Publication date
KR100974277B1 (en) 2010-08-06
EP2098644A2 (en) 2009-09-09
CN101525889B (en) 2012-11-28
CN101525889A (en) 2009-09-09
US20090223582A1 (en) 2009-09-10
JP5401122B2 (en) 2014-01-29
EP2098644A3 (en) 2017-01-04
KR20090094990A (en) 2009-09-09

Similar Documents

Publication Publication Date Title
JP5401122B2 (en) Hydraulic piping fixing device for construction machinery
JP4679605B2 (en) Hydraulic hose routing device for hanging grapple
US20140367529A1 (en) Hydraulic line fixing apparatus for boom swing-type excavators
KR101672893B1 (en) Tilting quick coupler and heavy equipment including the same
JP2009085000A (en) Hydraulic piping fixing device for small rotation type excavator
JP2008285991A (en) Attachment device for work device control hydraulic valve of construction machine
JP2000248583A (en) Revolving type hydraulic drive working machine
JP5389682B2 (en) Construction machinery
JP2004108055A (en) Working device of construction machine
KR20090033606A (en) Option pipe fixing device of excavator short swing radius type
JP2008179943A (en) Piping joint and piping connecting structure of construction machinery
JP4236645B2 (en) Mounting structure of rotary joint on turning work machine
JP3920823B2 (en) Working machine
JP2011184920A (en) Working arm for construction machinery
JP6152004B2 (en) Piping structure of construction machinery
CN209703502U (en) A kind of outer case of integrated oil path function
JP4727390B2 (en) Piping device for hydraulic cylinder for arm rotation
JP6934459B2 (en) Construction machinery
JP2010150813A (en) Swing working machine
JP3437067B2 (en) Oil passage structure of construction machinery
JPH0660647U (en) Welded structure of work equipment for construction machinery
CN202390879U (en) Excavator, control valve and pressure switch system of control valve
KR20160077428A (en) rotary actuator
KR20090060731A (en) Connector of hydraulic pipe of excavator
JP2006002513A (en) Work machine having two-piece boom

Legal Events

Date Code Title Description
A621 Written request for application examination

Free format text: JAPANESE INTERMEDIATE CODE: A621

Effective date: 20120207

A977 Report on retrieval

Free format text: JAPANESE INTERMEDIATE CODE: A971007

Effective date: 20130327

A131 Notification of reasons for refusal

Free format text: JAPANESE INTERMEDIATE CODE: A131

Effective date: 20130430

A521 Written amendment

Free format text: JAPANESE INTERMEDIATE CODE: A523

Effective date: 20130722

TRDD Decision of grant or rejection written
A01 Written decision to grant a patent or to grant a registration (utility model)

Free format text: JAPANESE INTERMEDIATE CODE: A01

Effective date: 20131001

A61 First payment of annual fees (during grant procedure)

Free format text: JAPANESE INTERMEDIATE CODE: A61

Effective date: 20131028

R150 Certificate of patent or registration of utility model

Free format text: JAPANESE INTERMEDIATE CODE: R150

R250 Receipt of annual fees

Free format text: JAPANESE INTERMEDIATE CODE: R250

R250 Receipt of annual fees

Free format text: JAPANESE INTERMEDIATE CODE: R250

LAPS Cancellation because of no payment of annual fees