我国放顶煤支架结构特点及发展趋向

The Structure Features and Development Trend of Coal Caving Supports in China

本文对我国放顶煤液压支架的结构、性能特点作了评述,并阐述了发展趋势及支架的改进意见。

This paper summarized the structure, performance andfeature of coal caving powered supports in China, and ana-lyzed their advantages and disadvantages. It was point outthat the development trend of coal caving support with twinface conveyors; glove type of telescoping beam or can-tilever; increasing the supporting strength of supports etc..It was proposed that the legs of caving support with singleface conveyor must be cancelled and the caved conveyor ofcaving support with twin face conveyor should be improved,which having to place on coal or rock floor, etc..