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1985年7月,机械部委托洛阳矿山机械研究所在湖州主持了JKMD3.5×4型落地多绳提升机鉴定会.与会代表听取了设计、制造、试验、运行等单位的介绍,并到牛头山煤矿对该设备的安装使用情况进行了观察.JKMD3.5×4型落地多绳提升机是上海冶金矿山机械厂设计制造的第一台,也是目前国内最大的落地式提升机.该机采用直流直联低速电动机驱动,电动机转子为悬挂式,衬垫采用双绳槽.其主要技术参数是:
In July 1985, the Ministry of Machinery commissioned Luoyang Mining Machinery Research Institute to preside over the appraisal meeting of JKMD 3.5 × 4 type floor multi-rope hoisting machine in Huzhou, where delegates listened to the introduction of design, manufacture, test, operation and other units, Hill coal mines on the installation and use of the equipment were observed.JKMD3.5 × 4-type floor multi-rope hoist is the Shanghai Metallurgical Mining Machinery Factory Design and manufacture of the first, is currently the largest floor-type hoist. The machine uses DC direct drive low-speed motor, motor rotor is suspended, double rope groove liner its main technical parameters are: