两种不同截齿排列截割头性能的比较  

Comparing and research on performance of two cutting heads with different kinds of pick arrangement

作　　者：李晓豁[1] 吕明[1] 史秀宝[1] DO TRUNG HIEU 

机构地区：[1]辽宁工程技术大学机械工程学院,辽宁阜新123000

出　　处：《辽宁工程技术大学学报（自然科学版）》2010年第1期136-138,共3页Journal of Liaoning Technical University (Natural Science)

基　　金：中国煤炭工业协会科学技术研究指导性计划项目(MTKJ-08-311);国家煤矿安全监察局安全生产科技发展指导性计项目(05-082);辽宁省大型工矿装备重点实验室(辽宁省第二批科学技术计划项目;2008403010);辽宁省安全生产监督管理局安全生产科技发展(辽安监规划[2009]88号文;09-340);辽宁省教育厅创新团队项目(2007T068);大型工矿装备实验研究中心(辽宁省高校重点实验室)开放基金项目(07-61)

摘　　要：为了评价利用等螺旋升角进行截齿排列设计的截割头的截割性能,选用了一个实际的截割头进行比较,通过计算机仿真获得两个截割头截割过程的切屑图和载荷曲线,经比较分析表明,用等螺旋升角排列截齿的截割头截槽合理,各段切屑图均匀,载荷大小及其波动较小,截割性能良好,所以用等螺旋升角排列截齿是一种高效、实用的截齿排列方法。In order to evaluate the cutting performance of cutting head with pick arrangement based on equal-rise-angle spiral line, a actual cutting head was chosen for comparison. The cutting pattern and load curves of cutting process of the two cutting heads were given by computer simulation, which showed that the cutting performance of the cutting head with pick arrangement based on equal-rise-angle spiral line was good because of its reasonable pick cut, its uniform cutting pattern and the small value and the fluctuation of its load. After analysis and comparison, the pick arrangement based on equal-rise-angle spiral line is efficient and practical.

关 键 词：掘进机 截割头 等螺旋升角 截齿排列 切屑图 载荷 

分 类 号：TD421.5[矿业工程—矿山机电]