采煤机截齿截割破岩能力分析研究

Analysis and Research on Cutting Rock Breakability of Shearer Cutting

本文以镐形截齿为例分析了截齿截割煤岩体的过程以及截割过程中截齿的受力情况。从截齿的磨损、截齿安装角度、截割厚度和截割速度角度分析影响截割性能的因素,发现合适的截齿安装角度、合理的截割厚度和截割深度是影响破岩效率的关键因素,较大的截割速度虽然会提高生产效率,但会加大截割阻力,加快截齿磨损。

Shearer is widely used in coal mine production. The process of coal cutting is basically the process of cutting coal and rock. In thispaper, the process of cutting the rock and rock mass and the force of the cutter in the cutting process are analyzed. The factors affecting thecutting performance are analyzed from the angle of cutting, picking angle, cutting thickness and cutting speed. It is found that the appropriatecutting angle, reasonable cutting thickness and cutting depth are the factors that affect the rock breaking efficiency The key factor, the largercutting speed will increase the production efficiency, but will increase the cutting resistance, to speed up the picking wear.