LUBRICATION PIPING ARRANGEMENT STRUCTURE IN CONSTRUCTION MACHINE
To provide a construction machine for which an arm, a work attachment, and an expansion cylinder are linked via a power link and an idler link, in which lubrication piping is arranged in the idler link so that the lubrication piping is protected and the structure of the idler link is not complicated...
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Sprache: | eng ; jpn |
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Zusammenfassung: | To provide a construction machine for which an arm, a work attachment, and an expansion cylinder are linked via a power link and an idler link, in which lubrication piping is arranged in the idler link so that the lubrication piping is protected and the structure of the idler link is not complicated.SOLUTION: An idler link 13 is provided with a protrusion 13d that protrudes in the direction of a reverse bucket 7 from a link body 13a of the idler link 13. A lubrication piping arrangement space 23 is provided on the laterally inner side of a laterally outer surface 13e of the protrusion 13d and extends in a link length direction. For The lubrication piping arrangement space 23, at least one of the reverse bucket 7 side and the laterally inner side opens. A lubrication pipe 22c is disposed in the lubrication piping arrangement space 23 so as to not protrude from a protrusion tip surface 13f of the protrusion 13d in the reverse bucket 7 direction and not protrude laterally and inward from a laterally inner link surface 13g of the link body 13a.SELECTED DRAWING: Figure 3
【課題】アームと作業アタッチメントと伸縮シリンダの先端部とを、パワーリンクおよびアイドラリンクを介して連結してなる建設機械において、アイドラリンクに給脂配管を配設するにあたり、給脂配管の保護を図るとともに、アイドラリンクの構造が複雑にならないようにする。【解決手段】アイドラリンク13に、該アイドラリンク13のリンク本体部13aから反バケット7方向に突出する突出部13dを形成し、該突出部13dの左右外側面13eの左右内方に、リンク長方向に伸び、反バケット7側あるいは左右内方側の少なくとも何れか一方側が開口した給脂配管配設スペース23を設け、該給脂配管配設スペース23に、給脂配管22cを、突出部13dの突出先端面13fよりも反バケット7方向に突出することなく且つリンク本体部13aの左右内側リンク面13gよりも左右内方に突出しない状態で配設した。【選択図】図3 |
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