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    • 1. 发明公开
    • 내접형 기어 펌프의 이너 로터
    • 内齿轮泵内转子
    • KR1020070086767A
    • 2007-08-27
    • KR1020077014808
    • 2005-01-12
    • 가부시키가이샤 다이야멧트
    • 호소노가츠아키
    • F04C2/10F04C15/00
    • F04C2/10F04C2/084F04C15/0073F04C2230/22F05C2201/0433F05C2201/0475F05C2251/00Y10T403/7035Y10T403/7047Y10T403/74
    • [PROBLEMS] Local stress concentration caused by rotational moment transmitted from a crankshaft is eased. [MEANS FOR SOLVING PROBLEMS] A crankshaft (6) and an installation hole (5) have two connection sections (12, 12, 22, 22) for connecting two main circular arc sections (11, 21) on the same circle and adjacent main circular arc sections (11, 11, 21, 21), and the opposite connection sections (12, 12, 22, 22) have a substantially parallel cross-sectional shape. The connection sections (22) of the installation hole (5) have a large circular arc shape projecting inward. Rotational force of the crankshaft (6) is transmitted to the installation hole (5), with the connection sections (12) of the crankshaft (6) and the large circular arc-shaped connection sections (22) of the installation hole (5) in linear contact with each other, so that a local stress value occurring at the installation hole (5) can be reduced.
    • [问题]从曲轴传递的旋转力矩引起的局部应力集中减轻。 用于解决问题的手段曲轴(6)和安装孔(5)具有两个连接部(12,12,22,22),用于将两个主圆弧部分(11,21)连接在相同的圆周和相邻的主体 圆弧部分(11,11,21,21)和相对的连接部分(12,12,22,22)具有基本平行的横截面形状。 安装孔(5)的连接部分(22)具有向内突出的大圆弧形状。 曲轴(6)的旋转力与曲轴(6)的连接部(12)和安装孔(5)的大圆弧形连接部(22)一起传递到安装孔(5) 彼此线性接触,从而可以减少在安装孔(5)处发生的局部应力值。