A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
REVOLVING FRAME OF WORK MACHINE
PROBLEM TO BE SOLVED: To provide a revolving frame of work machine, which allows an open hole to be formed on a vertical plate while suppressing decrease in rigidity of the revolving frame.SOLUTION: A revolving frame 1 comprises: a bottom plate 2 having a restrained part that is restrained by a swing bearing; a pair of vertical plates 3 which are erected on the bottom plate 2; and a pair of counter weight fitting parts 4 having a shape on which the counter weight can be fitted. A reinforcement part 6 on the vertical plate 3 is disposed at a position along at least a part of a force line L, which is obtained from a direction and scale of a main stress generated inside the vertical plates 3 by a bending load applied to the pair of vertical plates 3 from the counter weight fitted to the pair of counter weight fitting parts 4.SELECTED DRAWING: Figure 1
【課題】旋回フレームの剛性を低下を抑えながら縦板に貫通孔を設けることが可能な作業機械の旋回フレームを提供する。【解決手段】旋回フレーム１は、旋回ベアリングに拘束される被拘束部分を有する底板２と、底板２に立設された一対の縦板３と、カウンターウェイトが取り付け可能な形状を有する一対のカウンターウェイト取付け部４とを備えている。補強部６は、縦板３において、一対のカウンターウェイト取付け部４に取り付けられるカウンターウェイトによって一対の縦板３に与えられる曲げ荷重によって縦板３の内部に生じる主応力の向きと大きさから求められた力線Ｌの少なくとも一部に沿う位置に、配置されている、【選択図】図１
REVOLVING FRAME OF WORK MACHINE
PROBLEM TO BE SOLVED: To provide a revolving frame of work machine, which allows an open hole to be formed on a vertical plate while suppressing decrease in rigidity of the revolving frame.SOLUTION: A revolving frame 1 comprises: a bottom plate 2 having a restrained part that is restrained by a swing bearing; a pair of vertical plates 3 which are erected on the bottom plate 2; and a pair of counter weight fitting parts 4 having a shape on which the counter weight can be fitted. A reinforcement part 6 on the vertical plate 3 is disposed at a position along at least a part of a force line L, which is obtained from a direction and scale of a main stress generated inside the vertical plates 3 by a bending load applied to the pair of vertical plates 3 from the counter weight fitted to the pair of counter weight fitting parts 4.SELECTED DRAWING: Figure 1
【課題】旋回フレームの剛性を低下を抑えながら縦板に貫通孔を設けることが可能な作業機械の旋回フレームを提供する。【解決手段】旋回フレーム１は、旋回ベアリングに拘束される被拘束部分を有する底板２と、底板２に立設された一対の縦板３と、カウンターウェイトが取り付け可能な形状を有する一対のカウンターウェイト取付け部４とを備えている。補強部６は、縦板３において、一対のカウンターウェイト取付け部４に取り付けられるカウンターウェイトによって一対の縦板３に与えられる曲げ荷重によって縦板３の内部に生じる主応力の向きと大きさから求められた力線Ｌの少なくとも一部に沿う位置に、配置されている、【選択図】図１
REVOLVING FRAME OF WORK MACHINE
作業機械の旋回フレーム
SATO SHINJI (author) / MORI TATSUNORI (author) / SHIMAZU YASUHIKO (author)
2017-06-29
Patent
Electronic Resource
Japanese
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