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金岭铁矿侯庄分矿副井JKMD-2.8×2（Ⅱ）多绳摩擦式卷扬机 主要用途是运送物料和人,年提运岩石约30 000m3,是分矿完成生产任务的重要设备。其罐笼（4000mm mm×1450mm单层双车罐笼）的罐内阻车器原设计是山东冶金设计院的气动阻车器,动力源为分矿的生产用气,由气缸带动最终传动,进而达到阻车的目的（工作原理见图1）。1 存在问题虽然原设计的阻车器也能满足使用要求,但由于分矿年提
JKMD-2.8 × 2 (Ⅱ) Multi-rope Friction Hoist is mainly used for transporting materials and people. It is about 30000m3 per year to transport rocks, which is an important equipment for the completion of production tasks in the ore mines. Its cage (4000mm mm × 1450mm single-layer two-car cage) of the original design of the tank is the Shandong Metallurgical Design Institute pneumatic car stop, the power source for the sub-mine gas production, driven by the final drive cylinder, and then to The purpose of blocking (working principle shown in Figure 1). 1 problems Although the original design of the car can also meet the use requirements, but due to sub-mine annual mention