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六十年代,国家煤矿矿山机械研究所曾研制一种供铁路车辆装煤用的带链式门闸的АПУ1—型高效自动装载装置。根据车辆移动速度的不同,用上述的带1m直径闸门的装载装置装各种载重量车箱的时间需要3～5min。打开和关闭链式闸门的时间需要15s,而向车箱装完第一个锥形煤堆为1min。 卡拉干达矿区的各矿井均安设了АПУ—1型装载装置的第一批样机。但是,由于结构上的一系列缺点以及制造质量低劣和链式闸门严重磨损,所以该样机均被拆除。闸门的主要缺点是:链套内的链子规格选择不
In the 1960s, the National Institute of Coal Mine Machinery has developed an АПУ1-type high-efficiency automatic loading device with chain gate for coal loading of railway vehicles. Depending on the speed of the vehicle moving, the time required for loading various types of truck with the above-mentioned loading device with 1 m diameter gate takes 3 to 5 minutes. The time required to open and close the chain gate takes 15 s, and the first conical heap to the trunk is 1 min. The first prototypes of the АПУ-1 loading unit were installed at each mine in the Karaganda mine. However, the prototype was dismantled due to a number of structural shortcomings as well as poor manufacturing quality and severe wear on the chain gate. The main disadvantage of the gate is: the choice of chain specifications within the chain