Simulation Analysis of Digging Force and Force Acted on Hinged Joints of Working Device for Excavator
-
摘要: 利用三维造型软件Pro/e及动力学仿真软件ADAMS,搭建了某大型挖掘机SH700-5的虚拟样机模型。为获得铲斗以及斗杆最大挖掘力值,依据挖掘力国标测试方法对工作装置挖掘力进行了仿真测试,并与理论计算值进行了对比,结果表明,两种挖掘方式下工作装置自重对挖掘力大小分别有约4%与8%的提升作用。为研究挖掘作业过程中各铰点受力变化情况,分别按照铲斗挖掘以及斗杆挖掘方式驱动工作装置活塞杆动作,在铲斗上加载阻力,对挖掘作业过程进行模拟仿真,得到了关键铰点连续变化的受力曲线,结果表明,动臂与斗杆连接铰点受力最大,其瞬间受力最大值与挖掘阻力最大值之比分别为4.69与7.13。Abstract: The virtual prototype model of a large type excavator SH700-5 was built with the three-dimensional modeling software Pro/e and the dynamic simulation software ADAMS. In order to obtain the maximum digging force for the bucket and arm, the simulation and test for the digging force of working device were accomplished according to the GB measuring method and compared with the theoretically calculated value. The results show that under two different digging modes, the weight of working device will increase the digging force by about 4%and 8%, respectively. To study the changes of force acted on each hinged joints during the digging process, the action of the piston rods on working device was driven by bucket and arm respectively, and the loading resistance was exerted on the bucket to simulate the process of digging. the curves of the continuously changing force acted on the key hinged joints were obtained. The results indicate that the force value acted on hinged joint connecting the boom and stick is the biggest, the ratio of the maximum force and maximum digging resistance under two different digging modes are 4.69 and 7.13.
-
Key words:
- ADAMS /
- calculations /
- computer simulation /
- computer software /
- digging force
-
[1] 陈国俊,黄昌松,孙东来.液压挖掘机[M]. 武汉:华中科技大学出版社,2011:6-10 Chen G J, Huang C S, Sun D L. Hydraulic excavator[M]. Wuhan:Huazhong University of Science and Technology Press, 2011:6-10(in Chinese) [2] 严寒.2006年中国中大型挖掘机市场简析[J]. 今日工程机械,2007,20(7):54-56 Yan Han. Brief analysis of Chinese medium-and-large-sized excavator market in 2006[J]. Construction Machinery Today, 2007,20(7):54-56(in Chinese) [3] 罗刚,陈茂林,刘钊,等.斗山DH80-7挖掘机整机挖掘力下的铰点力计算[J]. 中国工程机械学报,2009,7(2):166-170 Luo G, Chen M L, Liu Z, et al. Hinge loading calculation on excavating forces for Doosan DH80-7 excavators[J]. Chinese Journal of Construction Machinery, 2009,7(2):166-170(in Chinese) [4] 周宏兵,胡雄伟,孙永刚,等.基于ADAMS仿真技术的挖掘机铰点受力仿分析[J]. 郑州大学学报,2009,30(2):71-74 Zhou H B, Hu X W, Sun Y G, et al. Calculation of the force acted on hinged joints of the hydraulic excavator based on ADAMS[J]. Journal of Zhengzhou University, 2009,30(2):71-74(in Chinese) [5] Jasnoch U, Kress H. Towards a virtua1 prototyping environment[J]. IFIP Workshop on VP, 1994,(9):76-79 [6] 熊光楞,李伯虎,柴旭东.虚拟样机技术[J]. 系统仿真学报,2001,13(1):114-117 Xiong G L, Li B H, Chai X D. Virtual prototyping technology[J]. Journal of System Simulation, 2001,13(1):114-117(in Chinese) [7] 李增刚.ADAMS入门详解与实例[M]. 北京:国防工业出版社,2008:40-42 Li Z G. Detailed entry and examples of ADAMS[M]. Beijing:Defense Industry Press, 2008:40-42(in Chinese) [8] 秦成,史淑玲.挖掘机摇臂机构的虚拟样机研究[J]. 机械工程师,2008,24(3):133-134 Qin C, Shi S L. The research on virtual prototyping of excavator rocker mechanism[J]. Mechanical Engineer, 2008,24(3):133-134(in Chinese) [9] GB/T 13332-2008.土方机械、液压挖掘机和挖掘装载机挖掘力的测定方法[S]. 北京:中国机械工业联合会,2008 GB/T 13332-2008. Earth-moving machinery-Hydraulic excavators and backhoe loaders-Methods of determining tool forces[S]. Beijing:China Machinery Industry Federation, 2008(in Chinese) [10] 黄斌.液压挖掘机工作装置优化及作业性能研究[D]. 长沙:中南大学,2009:21-22 Huang B. The optimization and research of working performance for the working device on hydraulic excavator[D]. Changsha:Central South University, 2009:21-22(in Chinese) [11] 陈欠根,李百儒,宋长春,等.新型液压挖掘机动臂势能回收再利用系统研究[J]. 广西大学学报,2013,38(2):292-299 Chen Q G, Li B R, Song C C, et al. Research on potential energy recycling system of a new hydraulic excavator boom[J]. Journal of Guangxi University, 2013,38(2):292-299(in Chinese) [12] 荣洪钧.液压挖掘机反铲工作装置整机理论复合挖掘力的计算模型及其应用研究[D]. 重庆:重庆大学,2007:16-17 Rong H J. Research and application for calculating model of theoretical digging force under combined word condition for hydraulic excavator with backhoe attachment[D]. Chongqing:Chongqing University, 2007:16-17(in Chinese) [13] 安国明.反铲斗挖掘土壤实验研究与挖掘阻力计算(上)[J]. 建筑机械化,2005,(4):26-28 An G M. Experimental research about backhoe excavating soil and calculating the excavating resistance[J]. Construction Mechanization, 2005,(4):26-28(in Chinese) [14] 胡雄伟.液压挖掘机反铲装置的力学性能分析与优化研究[D]. 长沙:中南大学,2009:16-17 Hu X W. The research on the mechanical properties and optimization of backhoe device for hydraulic excavator[D]. Changsha:Central South University, 2009:16-17(in Chinese) [15] 同济大学.单斗液压挖掘机[M]. 北京:中国建筑工业出版社,1986 Tongji University. Single bucket hydraulic excavator[M]. Beijing:China Building Industry Press, 1986(in Chinese)
点击查看大图
计量
- 文章访问数: 391
- HTML全文浏览量: 62
- PDF下载量: 40
- 被引次数: 0