A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
ATTACHMENT ATTACHING/DETACHING DEVICE OF CONSTRUCTION MACHINE, AND CONSTRUCTION MACHINE COMPRISING THE SAME
To provide an attachment attaching/detaching device of a construction machine that can keep a connection state of an attachment even when power supply to a hydraulic cylinder is cut off, offering high safety.SOLUTION: An attachment attaching/detaching device 30 of an excavation work machine comprises: a main body frame 31 connected to an arm; a movable hook 33 provided in the main body frame 31 in rotatable manner; a fixed hook 34 provided in the main body frame 31; a first hydraulic cylinder 55 for rotating the movable hook 33 with respect to the main body frame 31; a front lock member 56 provided in the movable hook 33 in rotatable manner; and a second hydraulic cylinder 57 provided in the movable hook 33, connected to the front lock member 56, and rotating the front lock member 56. The second hydraulic cylinder 57 includes: a movable portion for rotating the front lock member 56 in a direction opposite to a direction for a lock position; and an energizing portion for energizing the movable portion in a rotation direction so that the front lock member 56 becomes in the lock position.SELECTED DRAWING: Figure 5
【課題】建設機械のアタッチメント着脱装置において、油圧シリンダに対する動力の供給が断たれた場合であっても、アタッチメントの連結状態を保持することを可能とし、高い安全性を得る。【解決手段】掘削作業機のアタッチメント着脱装置３０であって、アームに連結される本体フレーム３１と、本体フレーム３１に回動可能に設けられた可動フック３３と、本体フレーム３１に設けられた固定フック３４と、本体フレーム３１に対して可動フック３３を回動させる第１油圧シリンダ５５と、可動フック３３に回動可能に設けられた前ロック部材５６と、可動フック３３に設けられるとともに前ロック部材５６に連結され、前ロック部材５６を回動させる第２油圧シリンダ５７とを備え、第２油圧シリンダ５７は、前ロック部材５６をロック位置となる向きと反対方向に回動させる可動部と、可動部を、前ロック部材５６がロック位置となる回動方向に付勢する付勢部材とを有する。【選択図】図５
ATTACHMENT ATTACHING/DETACHING DEVICE OF CONSTRUCTION MACHINE, AND CONSTRUCTION MACHINE COMPRISING THE SAME
To provide an attachment attaching/detaching device of a construction machine that can keep a connection state of an attachment even when power supply to a hydraulic cylinder is cut off, offering high safety.SOLUTION: An attachment attaching/detaching device 30 of an excavation work machine comprises: a main body frame 31 connected to an arm; a movable hook 33 provided in the main body frame 31 in rotatable manner; a fixed hook 34 provided in the main body frame 31; a first hydraulic cylinder 55 for rotating the movable hook 33 with respect to the main body frame 31; a front lock member 56 provided in the movable hook 33 in rotatable manner; and a second hydraulic cylinder 57 provided in the movable hook 33, connected to the front lock member 56, and rotating the front lock member 56. The second hydraulic cylinder 57 includes: a movable portion for rotating the front lock member 56 in a direction opposite to a direction for a lock position; and an energizing portion for energizing the movable portion in a rotation direction so that the front lock member 56 becomes in the lock position.SELECTED DRAWING: Figure 5
【課題】建設機械のアタッチメント着脱装置において、油圧シリンダに対する動力の供給が断たれた場合であっても、アタッチメントの連結状態を保持することを可能とし、高い安全性を得る。【解決手段】掘削作業機のアタッチメント着脱装置３０であって、アームに連結される本体フレーム３１と、本体フレーム３１に回動可能に設けられた可動フック３３と、本体フレーム３１に設けられた固定フック３４と、本体フレーム３１に対して可動フック３３を回動させる第１油圧シリンダ５５と、可動フック３３に回動可能に設けられた前ロック部材５６と、可動フック３３に設けられるとともに前ロック部材５６に連結され、前ロック部材５６を回動させる第２油圧シリンダ５７とを備え、第２油圧シリンダ５７は、前ロック部材５６をロック位置となる向きと反対方向に回動させる可動部と、可動部を、前ロック部材５６がロック位置となる回動方向に付勢する付勢部材とを有する。【選択図】図５
ATTACHMENT ATTACHING/DETACHING DEVICE OF CONSTRUCTION MACHINE, AND CONSTRUCTION MACHINE COMPRISING THE SAME
建設機械のアタッチメント着脱装置およびそれを備えた建設機械
YONEKURA KIYOSHI (author)
2022-05-17
Patent
Electronic Resource
Japanese
IPC:
E02F
Baggern
,
DREDGING
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| European Patent Office | 2024