A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
REVOLVING FRAME AND WORK MACHINE EQUIPPED WITH THE SAME
PROBLEM TO BE SOLVED: To provide a revolving frame capable of improving rigidity such as twisting rigidity and weld workability.SOLUTION: An upper frame is a base of an upper revolving body of a work machine and comprises: a bottom plate 21; a pair of vertical plates 22; a pair of reinforcement parts 23, which are connected to rear lateral end parts of the vertical plates 22 and have higher flexural rigidity in vertical direction than the rear lateral end part; and a beam 24, which connects the pair of reinforcement parts 23. The reinforcement parts 23 comprises: a counter weight fitting part 23a to which a counter weight 12 is fitted; and a beam connection part 23b, which is located in front of the counter weight fitting part 23a. The beam 24 connects the pair of reinforcement parts 23 by being welded on the beam connection part 23b.SELECTED DRAWING: Figure 4
【課題】ねじり剛性などの剛性の向上および溶接施工性の向上が可能な旋回フレームを提供する。【解決手段】作業機械の上部旋回体のベースとなるアッパーフレームは、底板２１と、一対の縦板２２と、各縦板２２の後方側端部に連結され、当該後方側端部よりも上下方向の曲げ剛性が高い構造を有する一対の補強部２３と、一対の補強部２３を連結する梁２４とを備えている。補強部２３は、カウンターウェイト１２が取り付けられるカウンターウェイト取付部分２３ａと、カウンターウェイト取付部分２３ａよりも前方側に位置する梁連結部分２３ｂとを有している。梁２４は、梁連結部分２３ｂに溶接されることによって一対の補強部２３を連結している。【選択図】図４
REVOLVING FRAME AND WORK MACHINE EQUIPPED WITH THE SAME
PROBLEM TO BE SOLVED: To provide a revolving frame capable of improving rigidity such as twisting rigidity and weld workability.SOLUTION: An upper frame is a base of an upper revolving body of a work machine and comprises: a bottom plate 21; a pair of vertical plates 22; a pair of reinforcement parts 23, which are connected to rear lateral end parts of the vertical plates 22 and have higher flexural rigidity in vertical direction than the rear lateral end part; and a beam 24, which connects the pair of reinforcement parts 23. The reinforcement parts 23 comprises: a counter weight fitting part 23a to which a counter weight 12 is fitted; and a beam connection part 23b, which is located in front of the counter weight fitting part 23a. The beam 24 connects the pair of reinforcement parts 23 by being welded on the beam connection part 23b.SELECTED DRAWING: Figure 4
【課題】ねじり剛性などの剛性の向上および溶接施工性の向上が可能な旋回フレームを提供する。【解決手段】作業機械の上部旋回体のベースとなるアッパーフレームは、底板２１と、一対の縦板２２と、各縦板２２の後方側端部に連結され、当該後方側端部よりも上下方向の曲げ剛性が高い構造を有する一対の補強部２３と、一対の補強部２３を連結する梁２４とを備えている。補強部２３は、カウンターウェイト１２が取り付けられるカウンターウェイト取付部分２３ａと、カウンターウェイト取付部分２３ａよりも前方側に位置する梁連結部分２３ｂとを有している。梁２４は、梁連結部分２３ｂに溶接されることによって一対の補強部２３を連結している。【選択図】図４
REVOLVING FRAME AND WORK MACHINE EQUIPPED WITH THE SAME
旋回フレーム、およびそれを備えた作業機械
MORI TATSUNORI (author) / SHIMAZU YASUHIKO (author) / MOCHIZUKI DAISUKE (author)
2017-02-16
Patent
Electronic Resource
Japanese
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