论文部分内容阅读
一、掩护式支架的发展概况带平衡千斤顶的二柱掩护式支架是较新一代掩护式支架。七九年我国引进的一百套综采设备中就约占2/3(67套)它属于WS1.7,G320等类型的系列产品。保持了掩护式支架顶梁前端支撑力大、防矸性强、稳定性好、可以带压移架等优点,同时增大了掩护梁的坡度,取消了顶梁尾部的三角区,配套设备亦无特殊要求。
First, the development overview of the shield bracket Two-pole shield bracket with a balanced jack is a new generation of shield bracket. In 1979, about 100% of the 100 sets of fully mechanized mining equipment imported from China accounted for about 2/3 (67 sets). It belonged to the series of products such as WS1.7 and G320. Maintaining the support of roof beam of shield type supporter is strong, anti-refuseability is strong, stability is good, it can be equipped with pressure-displacement frame and so on. At the same time, it increases the slope of shield beam, cancels the triangular area at the tail of roof beam, No special requirements.