The invention discloses movable portal frame hoisting equipment capable of ascending and descending, and belongs to the technical field of portal frame hoisting equipment, the movable portal frame hoisting equipment capable of ascending and descending comprises a main beam, inner stand columns and electric hoists, the two ends of the main beam are fixedly connected with the tops of the inner stand columns respectively, and one ends of the inner stand columns are slidably inserted into the upper ends of outer stand columns in a penetrating mode; the bottom end of the outer stand column is fixedly connected with the upper end of the base. According to the lifting mechanism, a TT type screw is rotationally arranged in the outer stand column and connected with the interior of the inner stand column through threads; the first gear is fixedly arranged on the T-shaped screw rod in a sleeving manner; the second gear is meshed and matched with the first gear, the second gear is fixedly connected with one end of an input shaft, and the other end of the input shaft movably extends out of the outer stand column; the hand wheel is fixedly arranged at the end, extending out of the outer stand column, of the input shaft. The vertical column is manually controlled to ascend and descend, the lifting speed is stable and reliable, the precision is high, the structure is simple, and the manufacturing cost is low.

    本发明公开了一种可升降的移动龙门架起重设备,属于龙门架起重设备技术领域,包括主梁、内立柱和电动葫芦,所述主梁的两端分别与所述内立柱的顶部固定连接,内立柱的一端滑动穿插在所述外立柱上端;所述外立柱的底端与所述底座上端固定连接;升降机构包括:TT型螺杆转动设于所述外立柱内部,并与所述内立柱内部通过螺纹连接;所述第一齿轮固定套设在所述T型螺杆上;所述第二齿轮与所述第一齿轮啮合配合,所述第二齿轮与输入轴一端固定连接,所述输入轴另一端活动伸出所述外立柱外;所述手轮固定设于所述输入轴伸出所述外立柱外的一端;本发明手动控制立柱升降,起升速度稳定可靠,精度较高,另外结构简单,制造成本较低。


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    Title :

    Liftable movable portal frame hoisting equipment


    Additional title:

    一种可升降的移动龙门架起重设备


    Contributors:
    DING WEITAO (author)

    Publication date :

    2023-03-21


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Chinese


    Classification :

    IPC:    B66C Krane , CRANES



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