分析了特大采高液压支架护帮作用机理,提出了特大采高支架增压增力复合护帮机构的特点、工作原理、创新点及与现有设备的对比,特别提出在7 m以上大采高支架增压增力复合护帮机构在支架防护方面的使用效果。 Based on the analysis of the action mechanism of the support and help of the extra-large hydraulic support, the characteristics, working principle, innovation and comparison with the existing equipment are put forward. In particular, The use effect of the high bracket supercharging and boosting composite guard mechanism in the bracket protection.