The invention relates to an eccentric lifting appliance and a lifting method for a marine high-pressure dual-fuel main engine cylinder cover exhaust valve. The eccentric lifting appliance comprises a lifting plate, a lifting eye bolt, a connecting bolt, a plug pin and a fixing bolt, wherein the lifting plate comprises a horizontal transverse plate part and a vertical plate part which extends downwards from one end of the transverse plate part, the connecting bolt penetrates through the transverse plate part to be connected with a top threaded hole of the exhaust valve, the pin penetrates through the vertical plate part to be inserted into a hydraulic pipe mounting hole of the exhaust valve, the fixing bolt penetrates through the vertical plate part to be connected with a hydraulic pipe mounting threaded hole of the exhaust valve, then the eccentric lifting appliance is fixedly connected with a cylinder cover exhaust valve assembly, the lifting eye bolt is fixedly connected with the transverse plate part by means of threads, a connecting position is located above the gravity center of the cylinder cover exhaust valve assembly, and the eccentric lifting appliance lifts the cylinder cover exhaust valve assembly with a gas control block stably and safely by means of the lifting eye bolt. According to the lifting appliance, the influence of eccentricity caused by the gas control block on lifting is avoided, and the lifting stability and safety of the cylinder cover exhaust valve assembly with the gas control block are effectively improved.

    一种船用高压双燃料主机缸盖排气阀的偏心吊具及起吊方法,所述偏心吊具包括吊板、吊环螺钉、连接螺栓、插销和固定螺栓,其中,吊板包括有水平的横板部和由该横板部的一端向下延伸的竖板部,连接螺栓穿过横板部与排气阀的顶部螺纹孔连接,销穿过竖板部插入排气阀的液压管安装孔,固定螺栓穿过竖板部与排气阀的液压管安装螺纹孔连接,从而将偏心吊具与缸盖排气阀总成固定连接,吊环螺钉通过螺纹与横板部固定连接,连接位置处于缸盖排气阀总成的重心的上方,偏心吊具通过该吊环螺钉将带有燃气控制块的缸盖排气阀总成平稳安全地起吊。本发明解决了燃气控制块带来的偏心对起吊的影响,有效提升了带燃气控制块的缸盖排气阀总成的吊装平稳性和安全性。


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    Title :

    Eccentric lifting appliance and lifting method for marine high-pressure dual-fuel main engine cylinder cover exhaust valve


    Additional title:

    船用高压双燃料主机缸盖排气阀的偏心吊具及起吊方法


    Contributors:
    HUANG HANXIAO (author) / ZHANG FEI (author) / ZHANG TAIRU (author)

    Publication date :

    2021-07-06


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Chinese


    Classification :

    IPC:    B66C Krane , CRANES



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