Through years of research, we conducted a detailed analysis and summary of the use of roller under the coal mine, found the main reasons for the formation of roller damage are the following:
1, water and slime roller bearings on the pollution, resulting in increased resistance until the stuck stuck;
2, water and water sulfur and acid corrode the corrosion of the pipe body. 4.5 mm thick pipe wall is usually eroded through the year or so, especially serious as long as 5 months was corroded;
3, Self-aligning stent device conflict Self-aligning roller, and the tape is not 90 degrees straight, but the use of lateral force to obstruct the force of obstruction, the roller wall will wear quickly, together with the tape wear is also very serious . The roller tube wall of the device on the forward tilting rack also relatively fast to wear;
4, Tapered self-aligning roller, tube wall is also worn easily;
5, cushioning roller life of about 3 months. Therefore, the use of the roller in the coal mine not only needs a good seal, the bearings can work in excellent smooth conditions for a long time, and the roller wall is necessary wear-resistant, corrosion-resistant ability to achieve the desired effect.
