The invention discloses a crane. A sliding block is rotatably provided with a first roller and a second roller, one end of a first lifting rope is fixed, the other end of the first lifting rope is wound on a first winding drum, a lifting hook is hung on the first lifting rope, and the first lifting rope is led out from the two ends of the lifting hook and wound on the first rolling wheel and the second rolling wheel correspondingly. When the first winding drum rotates, the first winding drum is used for winding and unwinding the first lifting rope, and the portion, between the first roller andthe second roller, of the first lifting rope is correspondingly shortened or lengthened under the action of gravity of the lifting hook and a heavy object, so that the first lifting rope drives the lifting hook to rise or fall longitudinally. A lazy arm is obliquely arranged, and the sliding block is slidably arranged on the lazy arm, so that the first roller and the second roller drive the lifting hook to synchronously and obliquely slide along with the sliding block, and the heavy object simultaneously moves in the transverse direction and the longitudinal direction. On the premise that themoving direction of the heavy object is not changed, the purpose of lifting the heavy object is achieved, a telescopic lazy arm is not needed, the failure rate is low, the structure is simple, work reliability can be improved, and meanwhile manufacturing cost is reduced.

    本发明公开一种吊车,滑块可转动设有第一滚轮和第二滚轮,第一吊绳的一端固定且另一端绕于第一卷筒上,第一吊绳吊装有吊钩,第一吊绳从吊钩两端的引出并分别对应绕于第一滚轮和第二滚轮,当第一卷筒转动时,第一卷筒收放第一吊绳,在吊钩及重物的重力作用下,第一吊绳位于第一滚轮及第二滚轮之间的长度对应地缩短或变长,使第一吊绳带动吊钩沿纵向升降。吊臂倾斜设置,滑块可滑动地设于吊臂上,使第一滚轮和第二滚轮带动吊钩随滑块同步倾斜滑动,进而使重物同时沿横向及纵向两个移动。在重物的移动方向未发生变化前提下达到提升重物目的,无需依靠伸缩式吊臂,故障率较低,结构较简单,故能够提升工作可靠性并同时降低制造成本。


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    Title :

    Crane


    Additional title:

    一种吊车


    Contributors:
    GUI HAIBO (author) / LIU YUHONG (author) / NING CHUAN (author) / XU LEI (author) / LIN HAIBIN (author) / RAN FEI (author)

    Publication date :

    2021-02-02


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Chinese


    Classification :

    IPC:    B66C Krane , CRANES



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