PROBLEM TO BE SOLVED: To achieve efficient attachment/detachment of a counterweight device.SOLUTION: A counterweight device is equipped with: an upper engagement part which can engage with a hoist unit provided on an upper revolving structure; a weight side lock device which temporarily fixes the counterweight device to a revolving frame at a height position where the counterweight device is elevated by the hoist unit while bringing the hoist unit and the upper engagement part into contact with each other; a lower engagement part which is provided below the upper engagement part and can engage with the hoist unit in the state that the counterweight device is temporarily fixed to the revolving frame by the weight side lock device; and a weight side stationery part which fixes the counterweight device to a rear end of the revolving frame at a height position where the counterweight device is further elevated by the hoist unit while bringing the hoist unit and the lower engagement part into contact with each other.SELECTED DRAWING: Figure 10
【課題】カウンタウエイト装置の着脱作業を効率的にする。【解決手段】カウンタウエイト装置に、上部旋回体に設けられている昇降装置と係合可能な上部係合部と、昇降装置と上部係合部とを係合させて昇降装置でカウンタウエイト装置を上昇させた高さ位置で、カウンタウエイト装置を旋回フレームに仮固定するウエイト側係止装置と、ウエイト側係止装置でカウンタウエイト装置を旋回フレームに仮固定した状態で、昇降装置と係合可能であり、上部係合部の下方に設けられた下部係合部と、昇降装置と下部係合部とを係合させて昇降装置でカウンタウエイト装置をさらに上昇させた高さ位置で、旋回フレームの後端にカウンタウエイト装置を固定するウエイト側固定部とを備える。【選択図】図10
WORK MACHINE, COUNTERWEIGHT DEVICE, AND METHOD FOR ATTACHMENT OF COUNTERWEIGHT DEVICE
作業機械、カウンタウエイト装置、および、カウンタウエイト装置取付方法
2016-04-21
Patent
Electronic Resource
Japanese
IPC: | B66C Krane , CRANES |
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