| 摘要 |
ECKH0092-AC/da 18 Abstract The invention relates to a method and a device for monitoring the travel path of a cutting extraction machine (1), particularly one used in coal mining, which can be moved along the working front (10) equipped with a face conveyor (9) and a powered support (12, 13) in longwall mining. The invention is based on the task of creating a method and a device that make it possible, despite extremely poor viewing conditions, to determine hindrances that might be present in the travel path of the extraction machine, in the form of shield caps that are standing low, or extendible cantilevers, sliding roof bars, or other appurtenances of the powered support that are hanging down, or overloading of the conveyor, in order to be able to take measures to avoid disruptions in operation, in timely manner. To accomplish this task, the invention proposes that the travel path of the extraction machine (1) is scanned by means of a radar measurement device (14) assigned to the extraction machine (1), and that if a hindrance is determined, an alarm is triggered and/or intervention into the control of the extraction machine (1) takes place. |
