摘要
锚杆钻车的工作环境恶劣,巷道支护环境复杂。伺服电动缸驱动技术可为高端锚杆钻车的突破和发展提供坚实的基础,具有重要的科学意义和实用价值。基于锚杆钻架对液压系统的技术要求,采用自上而下的设计方法,设计一种适用于锚杆钻架,可以精准控制位移的大推力电动缸。在solidworks建立电动缸的三维模型,使用有限元仿真分析软件对活塞杆最大延伸工况进行了线性特征值屈曲分析。并且利用Ansoft maxwell电磁场仿真软件中的静磁场分析功能,对霍尔位移传感器所在缸筒位置附近的磁感应强度进行了仿真分析。屈曲分析仿真结果表明:一二阶屈曲变形的特征值均约为1.6.在一阶屈曲变形中,最大变形量出现在电动缸的活塞杆端部。二阶屈曲变形的最大变形量同样集中在活塞杆端部,且一二阶变形结果的特征值差异极小,所以变形量同样差异极小,二阶屈曲最大变形量同样约为1.4 mm.磁场仿真结果表明:磁感应强度随着与磁瓦之间的距离增加而降低,虽然与磁瓦之间的距离呈非线性关系,但是传感器感应头所在位置的磁场强度仍然大于传感器的Bop点,足够激活传感器工作。
The working environment of bolt drill car is bad and the roadway supporting environment is complicated.The servo electric cylinder drive technology provides a solid foundation for a breakthrough and development of the high-end anchor drill,which has important scientific significance and practical value.In this paper,based on the technical requirements of the bolt drilling frame for the hydraulic system,the top-down design method is adopted to design a large thrust electric cylinder which is suitable for the bolt drilling frame and can accurately control the displacement.The three-dimensional model of the electric cylinder was established in solidworks,and the linear eigenvalue buckling analysis was carried out on the maximum extension condition of the piston rod with the finite element simulation analysis software.Moreover,the magnetic induction intensity near the cylinder position of Hall displacement sensor was simulated and analyzed by using the static magnetic field analysis function of Ansoft maxwell electromagnetic simulation software.The results of buckling analysis and simulation show that the eigenvalues of the first and second order buckling deformation are about 1.6.In the first order buckling deformation,the maximum deformation occurs at the piston rod end of the electric cylinder.The maximum deformation of second-order buckling deformation is also concentrated at the piston rod end,and the difference of the characteristic values of the first-order deformation results is very small,so the difference of deformation is also very small,and the maximum deformation of second-order buckling is also about 1.4 mm.The magnetic field simulation results show that the magnetic induction intensity decreases with the increase of the distance between the sensor and the magnetic tile.Although the distance between the sensor and the magnetic tile is nonlinear,the magnetic field intensity at the position of the sensor sensor head is still larger than the Bop point of the sensor,enough to activate the sensor.
作者
王万里
张宏
宋扬
杨超超
WANG Wan-li;ZHANG Hong;SONG Yang;YANG Chao-chao(School of Mechanical Engineering,Taiyuan University of Science and Technology,Taiyuan 030024,China;Taiyuan Research Institute of China Coal Technology and Engineering Group Corp,Taiyuan 030006,China)
出处
《太原科技大学学报》
2025年第4期377-383,共7页
Journal of Taiyuan University of Science and Technology
基金
国家自然科学基金(52075355)
山西省重点研发计划(2022ZDYF076)。
关键词
锚杆钻架
电动缸设计
稳定性
位移反馈
bolt drilling frame
electric cylinder design
stability
displacement feedback
