针对目前用于厚煤层、工作面较短及边角煤的综放开采中现有支架存在的问题和困难 ,研制出新型轻型低位放顶煤液压支架。该支架采用椅背形底座与掩护梁单铰接 ,双作用后立柱 ,掩护梁顶面呈两个倾角等独特结构 ,具有重量轻 ,结构合理 ,支护效果稳定可靠等特点 ,应用前景广阔。 Aimed at the existing problems and difficulties of the existing supports in the fully mechanized caving mining with thick seam, short working face and edge coal, a new type of light low caving hydraulic support was developed. The bracket adopts the chair-back-shaped base and single-hinged cover beam. The double post-column and the cover beam have the unique structure of two inclinations at the top, which has the characteristics of light weight, reasonable structure and stable and reliable supporting effect.