The invention relates to a European style crane with a protection device. The European style crane comprises a bridge frame mechanism and a crane carriage mechanism; the bridge frame mechanism comprises a bridge frame body and a first driving motor; guide wheels are arranged on the left side and the right side of the bridge frame body; the crane carriage mechanism is arranged on the bridge frame body; the crane carriage mechanism comprises a lifting device and a second driving motor; the second driving motor drives the lifting device to move; the lifting device comprises a first lifting motor, a second lifting motor and a winding drum; output shafts of the two lifting motors are respectively connected with the winding drum; a balance beam is arranged below the winding drum; movable pulleys are arranged on the two sides of the balance beam respectively; a fixed pulley is arranged between the balance beam and the winding drum; two fixing parts are arranged in the middle of the balance beam; one end of a steel wire rope is fixed on the winding drum; and the other end of the steel wire rope bypasses the movable pulley and the fixed pulley and is fixed on the balance beam. According to the invention, normal operation of the winding drum in the lifting process is guaranteed through the lifting motors on the two sides of the winding drum; furthermore, the winding drum is connected with the balance beam through the two sets of steel wire ropes; and the safety performance of the European style crane is effectively improved.

    本发明涉及一种具有保护装置的欧式起重机,包括桥架机构和起重小车机构,桥架机构包括桥架本体和第一驱动电机,桥架本体左右两侧设有导轮,起重小车机构设置在桥架本体上,起重小车机构包括起升装置和第二驱动电机,第二驱动电机驱使起升装置运动,起升装置包括第一起升电机、第二起升电机和卷筒,两个起升电机的输出轴分别与卷筒连接,卷筒下设有平衡梁,平衡梁两侧分别设有动滑轮,平衡梁与卷筒之间设有定滑轮,平衡梁中间设有两个固定部,钢丝绳的一端固定在卷筒,另一端绕过动滑轮和定滑轮并固定在平衡梁上。本发明通过卷筒两侧起升电机确保吊起过程中卷筒正常运行,而且卷筒通过两组钢丝绳与平衡梁连接,有效提高了欧式起重机的安全性能。


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    Title :

    European style crane with protection device


    Additional title:

    一种具有保护装置的欧式起重机


    Contributors:
    LEI YANCHANG (author) / ZHUANG WENQIAO (author) / GUO WENJIE (author) / GUO GUOWEI (author)

    Publication date :

    2021-07-27


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Chinese


    Classification :

    IPC:    B66C Krane , CRANES / B66D Haspeln , CAPSTANS



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