微型重载单轴压缩试验机研制及实验教学应用  

Development of micro-heavy load uniaxial compression testing machine and its experimental teaching application

作　　者：闫莎莎[1,2] 刘伟韬[1,2] 张同军[3] 孔德斌 YAN Shasha;LIU Weitao;ZHANG Tongjun;KONG Debin(National Demonstration Center for Experimental Mining Engineering Education,Shandong University of Science and Technology,Qingdao 266590,China;College of Energy and Mining Engineering,Shandong University of Science and Technology,Qingdao 266590,China;College of Electronics and Information Engineering,Shandong University of Science and Technology,Qingdao 266590,China)

机构地区：[1]山东科技大学矿业工程国家级实验教学示范中心,山东青岛266590 [2]山东科技大学能源与矿业工程学院,山东青岛266590 [3]山东科技大学电子信息与工程学院,山东青岛266590

出　　处：《实验技术与管理》2022年第3期153-159,共7页Experimental Technology and Management

基　　金：国家自然科学基金面上项目(51874192);山东省自然科学基金面上项目(ZR2019MEE084);山东科技大学科研创新团队支持计划(2018TDJH102);山东科技大学教学团队支持计划(JXTD20180501);山东科技大学群星计划(QX2020M02)。

摘　　要：文章设计了针对标准试件的微型重载单轴压缩试验机,开展了单轴压缩强度实验,获得了完整的应力-应变曲线。与现有岩体力学试验机相比:(1)在满足刚度和应力变形要求下,试验机采用一体式框架设计,具有微型化特点;(2)采用工业机械臂精准控制技术,伺服电机配合减速机和精密滚珠丝杠,实现了压力输出和进给的精准控制,具有重载和测试精度高特点;(3)省去了油压系统,精简了试验机结构,占地空间小,同样的实验空间可以放置多台设备。试验机的实验教学应用效果表明,该试验机操作性好,便携性强,满足学生动手操作需求,实验数据能够绘制出全应力-应变曲线,符合实验教学要求。今后将持续改进试验机结构,进一步扩大应用范围。In this paper,a miniature heavy-duty uniaxial compression testing machine for standard specimens is designed,uniaxial compression strength experiments are carried out,and a complete stress-strain curve is obtained.Compared with the existing rock mechanics testing machine,it has the following characteristics:(1) Under the condition of meeting the requirements of stiffness,stress and deformation,the testing machine adopts the integrated frame design,which has the characteristics of miniaturization;(2) The precise control technology of industrial manipulator,servo motor,reducer and precision ball screw are adopted to realize the precise control of pressure output and feed,which is characterized by heavy load and high test precision;(3) The oil pressure system is omitted,the structure of the testing machine is simplified,and the floor space is small.Multiple equipment can be placed in the same experimental space.The experimental teaching application effect of the testing machine shows that the testing machine has good operability and portability,meets the needs of students’ hands-on operation,and the experimental data can draw the full stress-strain curve,which meets the requirements of experimental teaching.In the future,the structure of the testing machine will be continuously improved to further expand the scope of application.

关 键 词：单轴压缩 试验机 微型重载 实验教学 

分 类 号：TU45[建筑科学—岩土工程] G642.0[建筑科学—土工工程]