煤矿悬臂式掘进机关键结构特性研究
Research on Key Structural Characteristics of Coal Mine Cantilever Type Roadheader
詹天宇1
作者信息
- 1. 山西新景矿煤业有限责任公司,山西 阳泉 045000
- 折叠
摘要
悬臂式掘进机的切削性能会对煤矿巷道开挖的能耗和效率产生影响.以华阳智矿新景公司悬臂式掘进机为工程背景,采用数值模拟研究了悬臂式掘进机截割头截割深度、旋转速度、后续截割距离对截割性能的影响.研究得出:当截割深度为截割头长度的 1/2～2/3 时,截割性能最佳;在能耗方面,截割深度对截割性能的影响比截割速度更敏感;截割性能指标在后续截割距离超过截割头直径之前趋于稳定.研究结果可为悬臂式掘进机的结构优化设计提供参考和借鉴.
Abstract
The cutting performance of cantilever roadheader affects the energy consumption and efficiency of coal mine roadway excavation.Taking the cantilever roadheader of Huayang Zhiming Xinjing Company as the engineering background,numerical simulation is used to study the effects of cutting depth of the cutting head of the cantilever roadheader,rotational speed and subsequent cutting distance on the cutting performance.The study concludes that the cutting performance is best when the cut-ting depth is 1/2 to 2/3 of the cutting head length;the cutting performance is more sensitive to the cutting depth than the cut-ting speed in terms of energy consumption;and the cutting performance index tends to be stable until the subsequent cutting distance exceeds the cutting head diameter.The results of the study can provide reference for the optimal design of cantilever type roadheader structure.
关键词
悬臂式掘进机/数值模拟/截割性能/结构优化Key words
cantilever roadheader/numerical simulation/cutting performance/structural optimization引用本文复制引用
出版年
2024
NETL
NSTL
万方数据