目前,随着高产高效矿井建设的不断发展,对综采设备生产能力和可靠性要求越来越高,支架向着大工作阻力、大型化和高可靠性方向发展。但许多煤矿罐笼的承载能力、空间尺寸及巷道截面都不能满足重型支架整体下井的需要,支架必须在井上解体,分批下井,在井下组装成整体。由于井下条件复 At present, with the continuous development of high-yield and high-efficiency mine construction, the requirements for the production capacity and reliability of the fully-mechanized mining equipment are getting higher and higher, and the supporter is developing toward large working resistance, large-scale and high reliability. However, the carrying capacity, space size and roadway cross section of many coal cage can not meet the needs of the entire heavy-duty subsurface well. The support must be disintegrated on the well, go down in batches, and be assembled into a whole in the well. Due to complex conditions downhole