PROBLEM TO BE SOLVED: To suppress a maximum value of an axial force of a bolt for fixation of a bearing.SOLUTION: A vertical plate 51 is located on a rear side X2 with respect to a revolution center 13c of a bearing 13 and is located on a radial direction outer side of the bearing 13 with respect to a bolt 45, and is so disposed alongside plural bolts 45 which are arranged in a circular arc shape viewed from a vertical direction Z. A connection member 53 extends to the rear side X2 and a lateral direction outer side Y2 from a portion on a lateral direction inner side Y1 of the vertical plate 51 with respect to a lateral plate 43, and is fixed to the lateral plate 43. A presser member 55 is connected to the vertical plate 51 and the connection member 53 so as to cover the vertical plate 51 and the connection member 53 from an upper side Z1.SELECTED DRAWING: Figure 3
【課題】ベアリングを固定するためのボルトの軸力の最大値を抑制する。【解決手段】縦板51は、ベアリング13の旋回中心13cよりも後側X2に配置され、ボルト45よりもベアリング13径方向外側に配置され、上下方向Zから見て円弧状に配置される複数のボルト45に並ぶように配置される。連結部材53は、縦板51のうち側板43よりも横方向内側Y1の部分から、後側X2かつ横方向外側Y2に延び、側板43に固定される。押さえ部材55は、縦板51および連結部材53を上側Z1から覆うように、縦板51および連結部材53に固定される。【選択図】図3
REVOLVING FRAME
旋回フレーム
2017-10-05
Patent
Electronic Resource
Japanese
IPC: | B66C Krane , CRANES |
REVOLVING FRAME OF WORK MACHINE AND ASSEMBLING METHOD OF REVOLVING FRAME OF WORK MACHINE
European Patent Office | 2021
|