The invention relates to a crane knuckle arm and a crane. The crane knuckle arm is provided with a channel for a telescopic oil cylinder passing through, the channel comprises a narrowing segment located at the arm tail position of the crane knuckle arm, a guiding piece is arranged on the end part of the narrowing segment, the guiding piece is provided with guiding inclined planes, the guiding inclined planes form an expansion opening, and the expansion opening is used for being matched with a telescopic oil cylinder head extending or retracting from the crane knuckle arm in a guiding mode tocorrect offset of the telescopic oil cylinder head in the width direction of the crane knuckle arm. When the telescopic oil cylinder head offsets in the width direction of the crane knuckle arm when passing through the narrowing segment, the telescopic oil cylinder head is in touch with the guiding inclined planes, the cylinder head slides along the expansion opening formed by the guiding inclinedplanes oppositely arranged after force to be aligning with the narrowing segment and smoothly passes through the narrowing segment of the channel, the offset is corrected when the telescopic oil cylinder head passes through the narrowing segment of the crane knuckle arm channel, and the problem that the cylinder head is clamped when the telescopic oil cylinder head passes through the crane knuckle arm channel is solved.

    本发明涉及一种起重机节臂及起重机,具有供伸缩油缸通过的通道,所述通道包括位于起重机节臂臂尾处的收窄段,收窄段端部设置有导向件,导向件具有导向斜面,所述导向斜面形成扩口,所述扩口用于与从起重机节臂伸出或缩回的伸缩油缸缸头导向配合以纠正伸缩油缸缸头在沿起重机节臂宽度方向上发生的偏移。伸缩油缸的缸头在通过收窄段发生沿起重机节臂宽度方向上的偏移时,伸缩油缸的缸头与所述导向斜面相接触,缸头在受力后沿相对布置的导向斜面形成的扩口滑动至与所述收窄段对齐,并顺利通过通道的收窄段,纠正了伸缩油缸缸头在通过起重机节臂通道的收窄段时发生的偏移,避免了伸缩油缸缸头在通过起重机节臂通道时发生的缸头卡住的问题的出现。


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    Titel :

    Crane knuckle arm and crane


    Weitere Titelangaben:

    一种起重机节臂及起重机


    Beteiligte:
    ZHU YONGZHI (Autor:in) / XU HONGFEI (Autor:in) / YIN TENGFEI (Autor:in) / XU ZHAOHUA (Autor:in) / HU GUANGQIN (Autor:in) / DENG WENLONG (Autor:in) / WANG PU (Autor:in)

    Erscheinungsdatum :

    2020-06-02


    Medientyp :

    Patent


    Format :

    Elektronische Ressource


    Sprache :

    Chinesisch


    Klassifikation :

    IPC:    B66C Krane , CRANES



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