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自矿井提升机问世一百多年来,在工作原理、传动方式、结构等方面有了很大发展。目前,为了适应大型矿井的需要,配有直流电机的大型多绳提升机已在世界各国相继应用。在设计和使用大型多绳提升机中也反映出了一些问题;①多绳摩擦式提升机的提升能力受摩擦衬垫性能的影响,提升机尺寸和提升钢绳的数量随提升能力而日趋增大。②电机功率一般大于1000千瓦,大多采用低速直联悬挂式直流电机或采用直联式交流变频同步电机。因而机械结构,直流供电系统结构日趋复杂,投资昂贵。即仗采用高速直流电机带减速器传动方式,因传动扭矩很大(在60吨·米以上)、使减速器制造工艺,使用维护比较复杂。
Since the advent of mine hoist more than one hundred years ago, great progress has been made in working principle, transmission mode and structure. At present, in order to meet the needs of large-scale mines, a large multi-rope hoist equipped with a DC motor has been applied all over the world. Some problems are also reflected in the design and use of large multi-rope hoists. (1) The hoisting capacity of multi-rope friction hoist is affected by the performance of the friction lining. The dimensions of hoisting ropes and the number of hoisting ropes are increasing with the increasing ability Big. ② motor power is generally greater than 1000 kilowatts, mostly low-speed direct-connected with DC motor or direct-connected AC variable frequency synchronous motor. Thus the mechanical structure, DC power supply system structure is increasingly complex, expensive investment. Namely the battle with high-speed DC motor reducer drive mode, because the transmission torque is very large (at 60 tons · m above), the reducer manufacturing process, the use of maintenance is more complicated.