The invention relates to a using method of a clamp, the clamp is mainly composed of a base and at least two clamping arms connected with the base, and the base is connected with a lifting rod in a sliding mode; comprising the steps that the clamping arms clamp a target object, transmission connection between the lifting rod and the clamping arms is kept, the lifting rod is lifted, the lifting rod drives the clamping arms to adjust the included angle between the clamping arms and the base, and therefore the clamping force of the clamping arms to the target object is further improved. The invention further relates to a lifting appliance and a crane. The lifting appliance comprises a base, a clamping arm, a lifting rod, a transmission device and a clamp loosening driving device, the at least two clamping arms are connected with the base to form a clamp; the lifting rod is in sliding connection with the base; the base, the clamping arms, the transmission device and the lifting rod form a deformable structure; the clamp clamping and loosening driving device is used for roughly setting the included angle between the clamping arm and the base, and an elastic adjusting space is further formed after the included angle is roughly set. The crane comprises a lifting rope and the lifting appliance, and the lifting rope is fixedly connected with the lifting rod in the B-axis direction. Using them can reduce the requirements for the initial clamping force providing device.

    本发明涉及一种夹具的使用方法,夹具主要由基座和与基座连接的至少两条夹臂构成,基座滑动连接有提拉杆;包括:使夹臂夹持目标物体,保持提拉杆和夹臂的传动连接,提拉提拉杆,提拉杆带动夹臂调整其与基座的夹角,以进一步提高夹臂对目标物体的夹持力。本发明还涉及一种吊具、吊机,包括基座、夹臂、提拉杆、传动装置和夹具夹松驱动装置;至少两条夹臂与基座连接形成夹具;提拉杆与基座滑动连接;基座、夹臂、传动装置和提拉杆构成可变形结构;夹具夹松驱动装置用于粗设夹臂与基座的夹角,并使夹角粗设后还具有弹性调整空间。一种吊机,包括吊绳和前述的吊具,吊绳在B轴方向上与提拉杆固定连接。使用它们可以降低初始夹持力提供装置的要求。


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    Title :

    Use method of clamp, lifting appliance and crane


    Additional title:

    夹具的使用方法、吊具、吊机


    Contributors:
    GUO PENGWEI (author) / DAI YONGLI (author) / WANG LEI (author) / ZHANG WENMIN (author) / ZHANG GUOCHEN (author) / LI ZHIMIN (author) / HE YUANYUAN (author) / YAO WANG (author) / WANG KUANGWEI (author) / CAO RUI (author)

    Publication date :

    2023-08-22


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Chinese


    Classification :

    IPC:    B66C Krane , CRANES



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