该种支架由德国矿山机械公司创制。在本专利中提出了一种通过驱动装置随运输机按予定顺序向前推进的支架组。该驱动装置将支架的控制装置和运输机连接起来(运输机横置于支架前部)。此种方法的优点是,它可随工作面的推进及时支护。但是,这种方法又需要把运输机和可伸缩绳索式的驱动装置相连接,当运输 The kind of stent by the German mining machinery company created. In the present patent there is proposed a set of brackets which are propelled forward by a drive unit in accordance with a predetermined order. The drive connects the control unit of the carriage to the conveyor (the conveyor is transverse to the front of the carriage). The advantage of this method is that it can be promptly supported with the promotion of work surfaces. However, this method in turn requires connecting the transporter with the retractable rope-type drive,