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zhuang pei yu chai xie ( er )
Author(s): 
Pages: 28-31
Year: Issue:  6
Journal: Farm Machinery

Keyword:  双头螺栓螺纹联接拖拉机发动机螺纹孔中径螺孔旋出轴承内圈螺钉孔过盈量;
Abstract: <正> 螺纹联接和销联接的装卸一、装配双头螺栓的技术要求 1.保证双头螺栓的紧固端与机体螺孔配合的紧固性,而不致在拆装螺母时,双头螺栓有任何松动。因此,双头螺栓的紧固端应当采用中径有过盈和有台肩的形式,要求不高的可将最后几圈螺纹车浅些,以达到螺纹配合紧固。当双头螺栓装入软材料中时,过盈更应大些。 2.双头螺栓的轴心线必须与机体表面垂直,通常用角尺进行检验。 3.装入双头螺栓时,要涂油润滑,以免旋入时产生咬住现象。以后拆卸更换时也能较方便地旋出。对柴油机和拖拉机发动机上的双头螺栓,装配时除上述几项外,
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