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一、概述我矿赵庄井于1974年进行井型改造,由原来年产原煤21万吨改造成为年产原煤45万吨的中型矿井,并将原0.63吨矿车的罐笼提升改为1吨标准矿车罐笼提升。又因该副井井筒断面限制,而不得不将原木罐道改为钢轨罐道,以适应1吨矿车罐笼提升的使用条件。但改后无防坠器,这直接威胁下井职工的生命安全。于是,我们在钢丝绳罐道防坠器的启示下,开始自己动手研制钢轨罐道防坠器。
I. Overview Mine Zhaozhuang Wells in 1974, well-type transformation, from the original annual output of 210,000 tons of raw coal converted into an annual output of 450,000 tons of coal mine, and the original 0.63 tons of tub car lift upgrade to 1 ton Standard car cage upgrade. And because of the well shaft section limit, and had to change the original wooden cans Road rail canals to meet the 1 tonne tank cage to enhance the conditions of use. However, after the change without anti-dropping device, which directly threaten the safety of underground workers. As a result, we began to develop our own rail anti-dropping device under the inspiration of wire rope anti-dropping device.