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刮板输送机在煤矿生产中占着重要的地位。它在煤矿机电事故中也占有较大的比重,合理的使用,预防和处理事故,改进其不合理的结构对发展煤炭生产具有重要的意义。本文结合我矿实践中所遇到的问题,谈几点看法。一、SGW—40T型刮板输送机链条处理及机尾滚动轴承润滑剂的改进 1、40T型刮板输送机采用φ18×64mm的圆环链,链条布置方式为双边链。链条最容易出事故,主要表现为断链、跳链和掉道,产生的原因有:(1)没有按规定力矩和规定时间拧紧螺栓,使链条及连接环磨损变形严重;(2)刮板弯曲超限,机头链轮磨损严重,链窝节距增大;(3)刮板输送机经常处于弯曲状态工作,使双边链的两条链一长一短受力不均匀。在一个刮板距内有时长度相差达50mm左右,使刮板严重歪斜运行而跳链掉道;(4)链条连接环变形等。减少链条事故除按我们通常所说:“平、直、弯、稳”外,提高链条检修质量是降低事故的有效手段。因此,我们坚持每采一个工作面,或使用半年左右,应把所有的链条运
Scraper conveyor occupies an important position in coal mine production. It also occupies a large proportion of mechanical and electrical accidents in coal mines. The rational use, prevention and handling of accidents and improvement of its unreasonable structure are of great significance to the development of coal production. This article combines my mine practice encountered problems, talk about a few comments. First, the SGW-40T-scraper conveyor chain handling and improvement of the end of the rolling bearing lubricant 1,40 T-scraper conveyor with φ18 × 64mm circular chain, chain layout for the bilateral chain. The most likely cause of the chain accident, the main performance chain broken, jumping chain and off the road, resulting in: (1) did not follow the prescribed torque and tightening the bolt, the chain and the connecting ring wear serious deformation; (2) scraper Bending overrun, head sprocket wear serious, chain nest pitch increases; (3) Scraper conveyor often in a curved state of work, so that the two sides of the chain of a chain of short and long force is not uniform. In a scraper away from the sometimes the difference between the length of about 50mm, the scraper serious crooked run and jump chain off the road; (4) chain connecting ring deformation. Reduce chain accidents In addition to what we usually say: “flat, straight, curved, stable,” to improve the quality of chain inspection is an effective means of reducing accidents. Therefore, we insist that every mining face, or use about six months, all the chain should be shipped