The invention discloses a crane, and relates to the technical field of cranes. The crane comprises a crane base and an overload compensation device, wherein the crane base is provided with a lifting hoisting mechanism, a large pull rod and a lifting steel wire rope; the lifting steel wire rope is in transmission connection with the lifting hoisting mechanism; the overload compensation device is arranged on the large pull rod; the overload compensation device comprises a base, a hydraulic element, a first guide pulley and a pulley support; the base is arranged on the large pull rod; the hydraulic element is rotatably arranged on the base and is provided with a telescoping push rod; the first guide pulley is propped against the lifting steel wire rope; and one end of the pulley support is rotatably connected to the push rod, and the other end is connected with the first guide pulley. The overload compensation device with a pressure relay is arranged, and an electric control system matched with the pressure relay is arranged on the crane, so that the crane has the advantages of compensating the hoisting stroke during overload, stopping in time and avoiding damage to the crane.

    本申请公开了一种起重机,涉及起重机的技术领域,本申请的起重机,包括起重机基座、过载补偿装置,起重机基座上设有起升卷扬机构、大拉杆和起升钢丝绳,起升钢丝绳与起升卷扬机构传动连接,过载补偿装置设于所述大拉杆上。其中,过载补偿装置包括基座、液压元件、第一导向滑轮和滑轮支架,其中,基座设于大拉杆上,液压元件可转动的设于基座上,液压元件具有能伸缩的推杆,第一导向滑轮与起升钢丝绳相抵,滑轮支架的一端可旋转的连接在推杆上,另一端与第一导向滑轮相连。本申请通过设置具有压力继电器的过载补偿装置,并在起重机上设有与压力继电器配合的电控系统。故本申请具有超载时补偿吊载行程、及时停机,避免损坏起重机的优点。


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    Title :

    Crane


    Additional title:

    起重机


    Contributors:
    XIAO CHI (author) / ZHANG XIAOLIANG (author) / LIAN QIANG (author)

    Publication date :

    2020-12-22


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Chinese


    Classification :

    IPC:    B66C Krane , CRANES



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