摘要
针对传统采煤机螺旋滚筒磨损严重的问题,对采煤机中空螺旋滚筒的结构设计及性能进行了研究。通过简要分析传统螺旋滚筒的结构特点及存在缺陷,进而提出一种基于凹槽镐形截齿的中空螺旋滚筒结构方案,并结合仿真分析与实践应用验证了该中空螺旋滚筒的性能。验证结果表明,凹槽镐形截齿的应力最大值约为204.980 0 MPa,位移最大值约为5.941 2×10^(-3)mm,均处于相关安全标准规定的限值范围内;就螺旋滚筒整体而言,除A形截齿区域外,其余部位的应力均未超过25.000 0 MPa,且位移最大值仅为6.44×10^(-5)mm,远低于相关安全标准的限值要求。同时,该中空螺旋滚筒现场实际运行效果良好,在保证煤矿开采作业有序开展的同时,延长了螺旋滚筒的使用寿命,有利于煤矿企业更好地发展。
Aiming at the problem of severe wear of the spiral drum of traditional shearers,a study was conducted on the structural design and performance of the hollow spiral drum for shearers.Through a brief analysis of the structural characteristics and existing defects of the traditional spiral drum,a structural scheme of the hollow spiral drum based on groove pick-shaped cutters was proposed,and the performance of this hollow spiral drum was verified by combining simulation analysis with practical application.The verification results indicate that the maximum stress of the groove pick-shaped cutters is approximately 204.9800 MPa,and the maximum displacement is about 5.9412×10-3 mm,both of which fall within the limit range specified in the relevant safety standards.For the spiral drum as a whole,except for the area of type A cutters,the stress of all other parts does not exceed 25.0000 MPa,with the maximum displacement only reaching 6.44×10-5 mm,which is far lower than the limit requirements of the relevant safety standards.Meanwhile,this hollow spiral drum has achieved good performance in actual field operation.While ensuring the orderly progress of coal mining operations,it prolongs the service life of the spiral drum,which is conducive to the better development of coal mining enterprises.
作者
宋礼强
SONG Liqiang(Shiku Coal Industry Co.,Ltd.,Changzhi Company,Jinneng Holding Group,Changzhi 047500,Shanxi,China)
出处
《能源与节能》
2026年第2期105-107,111,共4页
Energy and Energy Conservation
关键词
采煤机
中空螺旋滚筒
凹槽镐形截齿
位移
应力
shearer
hollow spiral drum
groove pick-shaped cutters
displacement
stress
