The invention relates to the technical field of crane equipment, and provides a movable portal crane which comprises a portal support frame and a track, rails are laid and installed on the two sides of the bottom end of the gate-type supporting frame, braking mechanisms are arranged at the two ends of the bottom of the gate-type supporting frame, rolling wheels are movably installed at the bottom end of the gate-type supporting frame, and an electric hoist is movably installed at the top of the gate-type supporting frame. By arranging the lubricating mechanism, when a steel wire rope lifts a heavy object, through cooperation between a second gear and a forward and reverse rack, a fourth gear rotates forwards, the second rack is driven to move towards the middle at the same time, extrusion plates are made to get close, a piston is pushed to move towards one side through extrusion of a connecting rod, and lubricating oil is sprayed out from an oil outlet; when the steel wire rope moves upwards, the steel wire rope is fully contacted with the surface of the steel wire rope, so that lubrication is uniform, friction between the steel wire rope of the portal crane and parts such as a pulley and a winding drum is reduced, and the service life of the steel wire rope is prolonged.

    本发明涉及起重机设备技术领域,提供一种可移动的门式起重机,包括门式支撑架和轨道;所述门式支撑架底端的两侧均铺设安装有轨道,所述门式支撑架底部的两端均设置有刹停机构,所述门式支撑架的底端活动安装有滚轮,所述门式支撑架的顶部活动安装有电动葫芦。本发明通过设置有润滑机构,当钢丝绳对重物提升时,通过第二齿轮和正反齿条之间的配合,使得第四齿轮正转,带动第二齿条同时向中间移动,使得挤压板靠拢,通过连杆受到挤压推动活塞在向一侧移动,润滑油从出油孔处喷出,与海绵垫接触,在钢丝绳上移时,充分与其表面进行接触,使得润滑均匀,从而降低门式起重机的钢丝绳与滑轮、卷筒等部件之间摩擦,延长其的使用寿命。


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    Title :

    Movable portal crane


    Additional title:

    一种可移动的门式起重机


    Contributors:
    LIU ZHIGUO (author)

    Publication date :

    2024-12-13


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Chinese


    Classification :

    IPC:    B66C Krane , CRANES / F16N LUBRICATING , Schmierung



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