井下液压支架立柱限位的失效解决

液压支架在综采工作面使用时有时会造成立柱固定挡板的限位块脱落。在一般井下工作面，无法进行焊接，造成立柱失控，不能正常工作。单个支架底座升井检修十分困难，勉强继续使用会造成很大地安全隐患。经过对立柱周边位置结构地分析，用较简单地办法处理了这类问题，使立柱的固定得到恢复。

The resolvent of positioning failure of the prop on a hydraulic support at the coal mining face

While a hydraulic support is being used at a composite coal mining face, sometimes, for various reasons, the positioning block on the prop＇s fastening baffle beard may fan off. Usually, at a coal mining face,welding can＇t be carried out, so the prop goes out of control, and can＇t work normally. Because it is very difficult to raise up to ground a single pedestal of a hydraulic support and fix it, Sometimes, if they have to continue to use the damaged prop a huge hidden safety trouble is always behind. Having analyzed the structure around the prop, the problem with a simple method is settled down, the position is also resumed.