综采设备的生产率在很大程度上取决于每种机械(其中包括刮板运输机)的工作能力和可靠性。与其他运输设备相比,刮板运输机具有很多优点,但也有一些缺点。最主要的缺点是运输机某些地段的下刮板链(回空链)易出槽,有时由于断链及随之产生的刮板歪斜,甚至会沿运输机全长发生链条出槽事故。排除这类故障的工作是既费力又费时间的,链子必须靠人工才能放回到运输机的溜槽内,为此要将运输机溜槽抬高15～20 The productivity of fully mechanized mining equipment depends very much on the workability and reliability of each machine, including the scraper conveyor. Scrap conveyors have many advantages over other transportation equipment, but also have some disadvantages. The main disadvantage is that the scraper chain (back to the air chain) in some locations of the transporter tends to be out of the groove, and sometimes the chain can be discharged along the entire length of the transporter due to the broken chain and the resulting scraper skew. To eliminate such failures is laborious and time-consuming, the chain must be manually returned to the chute of the transport aircraft, for which reason the transport chute should be raised 15 ~ 20