The invention relates to the technical field of pin shafts, in particular to a flexible-rotation pin shaft for a port crane, which comprises a first main body, connecting plates in a vertically upward state are symmetrically arranged at the top end of the first main body, first through holes are formed in two sides of the two connecting plates, a second through hole is formed in a second main body, and a connecting shaft penetrates through the first through hole and the second through hole. The connecting shaft in the first through hole is sleeved with an inner sleeve, an outer sleeve is arranged outside the inner sleeve, the outer surface of the outer sleeve abuts against the inner wall of the first through hole, a clearance space is reserved between the inner sleeve and the outer sleeve, and balls allowing the inner sleeve to rotate in the outer sleeve are evenly arranged in the clearance space; annular grooves are formed in the outer surface of the inner sleeve and the inner wall of the outer sleeve, at least one positioning groove is formed in the top end of the outer sleeve, a third through hole is formed in the top end of the connecting plate, and a quick connecting device is arranged on the connecting shaft in the second main body.

    本发明涉及销轴技术领域,转动灵活的港口起重机用销轴,包括第一主体,第一主体的顶端对称设置有呈垂直向上状态的连接板,两个连接板两侧开设有第一通孔,第二主体内部设置有第二通孔,连接轴贯穿第一通孔和第二通孔,第一通孔内部的连接轴上套接有内套筒,内套筒的外部设置有外套筒,外套筒的外表面与第一通孔内壁相抵,内套筒和外套筒之间留有间隙空间,间隙空间内均匀设置有供内套筒可在外套筒内转动的滚珠,内套筒的外表面和外套筒的内壁上均设置有环形凹槽,外套筒的顶端设置有至少一个定位槽,连接板的顶端设置有第三通孔,第二主体内部的连接轴上设置有快连装置,本发明,不受重力的影响,转动灵活顺畅,摩擦较小,使用寿命长久。


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    Title :

    Flexible-rotation pin shaft for port crane


    Additional title:

    转动灵活的港口起重机用销轴


    Contributors:
    MIAO HONGYA (author)

    Publication date :

    2022-06-17


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Chinese


    Classification :

    IPC:    F16B DEVICES FOR FASTENING OR SECURING CONSTRUCTIONAL ELEMENTS OR MACHINE PARTS TOGETHER, e.g. NAILS, BOLTS, CIRCLIPS, CLAMPS, CLIPS OR WEDGES , Vorrichtungen zum Befestigen oder Sichern von Konstruktionselementen oder Maschinenteilen, z.B. Nägel, Bolzen, Schrauben, Sprengringe, Klemmen, Klammern oder Keile / B66C Krane , CRANES



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