Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
SHORT REACH TYPE HYDRAULIC EXCAVATOR
To make it difficult for hydraulic hoses of an attachment drive circuit to interfere with obstacles in a narrow underground space.SOLUTION: A hydraulic piping 33 of a hydraulic circuit that drives a hydraulic actuator 27 of an attachment 23 is configured to include a boom fixing pipe 35 piped along an outer wall of a boom 21 such that a boom tip end side end portion is positioned on a left side surface of an operator's cab of a work machine 20, an arm fixing pipe 36 piped along an outer wall of an arm 22 such that an arm base end side end portion is located on the left side surface of the work machine 20, and a hydraulic hose 37 for connecting the boom fixing pipe and the arm fixing pipe across a connecting portion of the boom and the arm. A tip end portion of the hydraulic hose is connected to the arm fixing pipe with a posture facing an opening toward a back side of the arm, and a base end portion of the hydraulic hose is disposed closer to the tip end portion of the boom cylinder than the orbital circle R drawn by the tip end portion with the pivoting operation of the arm, and is connected to the boom fixing pipe in a posture that opens in a direction inclined toward a bent portion side of the boom toward the back side surface of the boom along a tangent line of a track circle.SELECTED DRAWING: Figure 2
【課題】狭隘な地下空間でアタッチメント駆動回路の油圧ホースを障害物に干渉し難くする。【解決手段】アタッチメント２３の油圧アクチュエータ２７を駆動する油圧回路の油圧配管３３を、作業機２０の運転室側の左側面にブーム先端側端部が位置するようにブーム２１の外壁に沿って配管したブーム固定管３５と、作業機２０の左側面にアーム基端側端部が位置するようにアーム２２の外壁に沿って配管したアーム固定管３６と、ブーム及びアームの連結部を跨いでブーム固定管及びアーム固定管を接続する油圧ホース３７を含んで構成し、油圧ホースの先端部をアームの背側面方向に開口を向けた姿勢でアーム固定管に接続し、油圧ホースの基端部を、アームの回動動作に伴って上記先端部が描く軌道円Ｒよりもブームシリンダの先端部の近くに配置し、軌道円の接線に沿ってブームの背側面に向かってブームの屈曲部側に傾斜した方向に開口した姿勢でブーム固定管に接続する。【選択図】図２
SHORT REACH TYPE HYDRAULIC EXCAVATOR
To make it difficult for hydraulic hoses of an attachment drive circuit to interfere with obstacles in a narrow underground space.SOLUTION: A hydraulic piping 33 of a hydraulic circuit that drives a hydraulic actuator 27 of an attachment 23 is configured to include a boom fixing pipe 35 piped along an outer wall of a boom 21 such that a boom tip end side end portion is positioned on a left side surface of an operator's cab of a work machine 20, an arm fixing pipe 36 piped along an outer wall of an arm 22 such that an arm base end side end portion is located on the left side surface of the work machine 20, and a hydraulic hose 37 for connecting the boom fixing pipe and the arm fixing pipe across a connecting portion of the boom and the arm. A tip end portion of the hydraulic hose is connected to the arm fixing pipe with a posture facing an opening toward a back side of the arm, and a base end portion of the hydraulic hose is disposed closer to the tip end portion of the boom cylinder than the orbital circle R drawn by the tip end portion with the pivoting operation of the arm, and is connected to the boom fixing pipe in a posture that opens in a direction inclined toward a bent portion side of the boom toward the back side surface of the boom along a tangent line of a track circle.SELECTED DRAWING: Figure 2
【課題】狭隘な地下空間でアタッチメント駆動回路の油圧ホースを障害物に干渉し難くする。【解決手段】アタッチメント２３の油圧アクチュエータ２７を駆動する油圧回路の油圧配管３３を、作業機２０の運転室側の左側面にブーム先端側端部が位置するようにブーム２１の外壁に沿って配管したブーム固定管３５と、作業機２０の左側面にアーム基端側端部が位置するようにアーム２２の外壁に沿って配管したアーム固定管３６と、ブーム及びアームの連結部を跨いでブーム固定管及びアーム固定管を接続する油圧ホース３７を含んで構成し、油圧ホースの先端部をアームの背側面方向に開口を向けた姿勢でアーム固定管に接続し、油圧ホースの基端部を、アームの回動動作に伴って上記先端部が描く軌道円Ｒよりもブームシリンダの先端部の近くに配置し、軌道円の接線に沿ってブームの背側面に向かってブームの屈曲部側に傾斜した方向に開口した姿勢でブーム固定管に接続する。【選択図】図２
SHORT REACH TYPE HYDRAULIC EXCAVATOR
ショートリーチ型油圧ショベル
ITO MINORU (Autor:in) / INAMOTO AKIRA (Autor:in) / OKUYA SO (Autor:in) / OTAKE HIROMI (Autor:in)
15.08.2019
Patent
Elektronische Ressource
Japanisch
IPC:
E02F
Baggern
,
DREDGING
| Europäisches Patentamt | 2022
Hydraulic excavator and hydraulic excavator calibration method
| Europäisches Patentamt | 2019
HYDRAULIC EXCAVATOR AND HYDRAULIC EXCAVATOR CALIBRATION METHOD
| Europäisches Patentamt | 2019