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目前,我国地下金属矿山采场天井中运搬设备,材料等大多采用手动葫芦、风动绞车或游动绞车。使用这些设备,工人体力劳动强度较大,一次提升量小且使用不方便。针对这些问题,1978年由湖南铀矿开采研究所设计了YJJM-5型移动式提升机,侧视图见附图。该机已由国营720厂试制并于1981年完成工业试验;同年10月经鉴定通过并决定小批量生产,逐步在矿山推广使用。
At present, China’s underground metal mining yard patio moving equipment, materials, etc. are mostly manual hoist, wind winch or swimming winch. The use of these devices, workers manual labor intensity, a small amount of lift and inconvenient to use. In response to these problems, YJJM-5 mobile elevators were designed by Hunan Institute of Uranium Mining in 1978. The side view is shown in the attached drawings. The aircraft has been trial run by the state-run 720 plant and industrial tests completed in 1981; the same year in October by the adoption and decided to small batch production, and gradually promote the use of the mine.