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US6029799A Method for controlling drives of conveying machinery 失效
输送机械驱动控制方法

Method for controlling drives of conveying machinery
摘要:
A method for controlling the main and auxiliary drives of conveyors, for example, in underground mining. The drives are controlled as a function of the loading of the conveyor in such a way that in a low load range of the conveyor the auxiliary drive produces a higher output (20.sub.I) than the main drives and as the load increases the output advantage of the auxiliary drive in relation to the main drives is reduced. This special load distribution to auxiliary and main drives has the advantage that sagging of the conveyor element, for example the chain of a scraper chain conveyor in the inaccessible and concealed lower strand, close to the main drive, can be prevented. The risk of damage to the machine frame or conveyor chain is thereby reduced.
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