Excavator Working Device Based on Dynamic Characteristics Analysis of Clearance Wear Mechanism of End Face Friction Pair

doi:10.3901/JME.2022.19.191

Abstract

Abstract: Mechanical power equipment often because of bad operation condition affecting the face friction pair clearance of wear serious, in order to discuss joint changes in operation in the process of friction pair clearance and wear behavior and mechanism of action, to a certain type excavator as an example, based on dynamics simulation analysis under two kinds of typical working condition of the movable arm joints based on dynamic load data, Using finite element numerical simulation technology and correct Archard wear model calculated friction pair clearance in the relationship between the number of wear depth and wear, in the end wear test machine to verify two joint clearance under the condition of abrasion and gasket change process, and observed under scanning electron microscopy (SEM) analysis of surface topography after wear and wear mechanism. It turns out that the wear areas are annular in both conditions. In off-load condition, the wear is mainly related to the contact stress value and off-load Angle. During the wear process, the surface produces cone-punctured pits and cross furrows, and the wear mechanism changes from fatigue wear to adhesive wear, accompanied by a small amount of abrasive wear. At full load, the wear is mainly related to the degree of contact and collision, and the wear forms are adhesive wear and abrasive wear. This method of analysis has a good reference value for the construction machinery industry to analyze other power equipment joint friction pairs and engineering applications.

Key words: face friction pair, excavator, typical working condition, wear areas, wear mechanism

CLC Number:

TH117

CHEN Xuehui, LI Wei, LIU Wei, LI Hao, HUANG Lei, WANG Zijian, HE Hongbin. Excavator Working Device Based on Dynamic Characteristics Analysis of Clearance Wear Mechanism of End Face Friction Pair[J]. Journal of Mechanical Engineering, 2022, 58(19): 191-205.

References

[1] 蒙秋红. 挖掘机典型摩擦副磨损控制技术研究与应用[D]. 武汉:华中科技大学，2004. MENG Qiuhong. Research and application of wear control technology for typical friction pairs in excavator [D]. Wuhan:Huazhong University of Science and Technology，2004.
[2] 王可朝. 多工况下挖掘机工作装置端面摩擦副动力学分析[D]. 合肥:安徽建筑大学，2021. WANG Kechao. Dynamic analysis of end-face friction pair of excavator working device under multiple working conditions [D]. Hefei:Anhui Jianzhu University，2021.
[3] 李锋，薄路铖，陈景福，等. 关节软骨与髋关节陶瓷材料往复旋转运动摩擦行为研究[J]. 摩擦学学报，2018，38(2):145-152. LI Feng，BO Lucheng，CHEN Jingfu，et al. Friction behavior of articular cartilage and hip joint ceramic materials in reciprocating rotation [J]. Tribology，2018，38(2):145-152.
[4] 屈盛官，段勇，赖福强，等. 不同重力环境下间隙铰链关节磨损分析[J]. 宇航学报，2018，39(4):442-449. QU Shengguan，DUAN Yong，LAI Fuqiang，et al. Wear analysis of clearance joints under different gravity conditions [J]. Journal of Astronautics，2018，39(4):442-449.
[5] 王琦. 螽斯翅膀及腿关节耐磨机理研究[D]. 长春:吉林大学，2020. WANG Qi. Study on Wear resistance mechanism of katydids wing and leg joints [D]. Changchun:Jilin University，2020.
[6] 王见，董虎，王兆东，等. 含关节间隙的3-CPaRR解耦并联机构弹性动力学建模与分析[J]. 振动与冲击，2020，39(5):118-130. WANG Jian，DONG Hu，WANG Zhaodong，et al. Elasto dynamics modeling and analysis of 3-CPARR decoupled parallel mechanism with joint clearance [J]. Journal of Vibration and Shock，2020，39(5):118-130.
[7] 袁伟，于洁，郭前建，等. 初始径向微沟槽对摩擦副磨损性能影响研究[J]. 机械设计与制造，2021(6):36-38，44. YUAN Wei，YU Jie，GUO Qianjian，et al. Influence of initial radial micro-groove on wear performance of friction pairs[J]. Journal of Mechanical Design & Manufacture，2021(6):36-38，44.
[8] 陈科，张国军，於孝朋，等. 考虑间隙的液压挖掘机机臂动力学研究[J]. 应用力学学报，2018，35(4):861-867. CHEN Ke，ZHANG Guojun，YU Xiaopeng，et al. Dynamics of hydraulic excavator arm considering clearance[J]. Chinese Journal of Applied Mechanics，2018，35(4):861-867.
[9] 赵波，戴旭东，张执南，等. 柔性对多体系统中铰接副磨损的影响[J]. 摩擦学学报，2014，34(6):705-714. ZHAO Bo，DAI Xudong，ZHANG Zhinan，et al. Influence of flexibility on wear of articulated pair in multi-body system [J]. Tribology，2014，34(6):705-714.
[10] 王国庆，刘宏昭，何长安. 含间隙曲柄滑块机构运动副动态磨损研究[J]. 机械强度，2007，28(6):849-852. WANG Guoqing，LIU Hongzhao，HE Changan. Research on dynamic wear of kinematic pair of crank-slider mechanism with clearance [J]. Journal of Mechanical Strength，2007，28(6):849-852.
[11] 车建明，项忠霞. 碳纤维铜基复合材料磨损率的定量预测[J]. 天津大学学报，2005，38(10):887-891. CHE Jianming，XIANG Zhongxia. Quantitative prediction of wear rate of carbon fiber copper matrix composites [J]. Journal of Tianjin University，2005，38(10):887-891.
[12] WALLBRIDGE N，DOWSON D. Distribution of wear rate data and a statistical approach to sliding wear theory[J]. Wear，1987，119(3):295-312.
[13] 龙也，赵炯. ABAQUS接触分析在挖掘机动臂销轴故障处置中的应用[J]. 建筑，2012(6):82-83. LONG Ye，ZHAO Jiong. Application of ABAQUS Contact analysis in fault handling of excavator arm pin shaft [J]. Building，2012(6):82-83.
[14] 王海，付邦晨，薛彬，等. 六自由度柔性关节机械臂的动力学分析[J]. 中国机械工程，2016，27(8):1096-1101. WANG Hai，FU Bangchen，XUE Bin，et al. Dynamics analysis of 6-DOF manipulators with flexible joints[J]. China Mechanical Engineering，2016，27(8):1096-1101.
[15] 邓子龙，钮科. 基于非线性接触的液压挖掘机工作装置偏载工况下的性能分析[J]. 矿山机械，2013(12):30-34. DENG Zilong，NIU Ke. Performance analysis of the working device of hydraulic excavator under bias loading condition based nonlinear contact [J]. Mining Machinery，2013(12):30-34.
[16] 陈雪辉，王可朝，李昊，等. 基于挖掘机满载瞬时启动动力学研究[J]. 装备维修技术，2021(5):190-191. CHEN Xuehui，WANG Kechao，LI Hao，et al. Equipment maintenance technology[J]. Equipment Maintenance Technology，2021(5):190-191.
[17] 李泉儒. 基于ADAMS的液压挖掘机工作装置仿真分析[D]. 西安:长安大学，2019. LI Quanru. Simulation analysis of working device of hydraulic excavator based on ADAMS [D]. Xi'an:Chang' an University，2019.
[18] 桂长林. Archard的磨损设计计算模型及其应用方法[J]. 润滑与密封，1990(61):12-21. GUI Changlin. The calculation model of archard wear design and its application method[J]. Lubrication Engineering，1990，(61):12-21.
[19] 李聪波，何娇，杜彦斌，等. 基于Archard模型的机床导轨磨损模型及有限元分析[J]. 机械工程学报，2016，52(15):106-113. LI Congbo，HE Jiao，DU Yanbin，et al. Machine tool guide wear model and finite element analysis based on archard model [J]. Journal of Mechanical Engineering，2016，52(15):106-113.
[20] 李颂华，李爽，张宇，等. 材料磨损系数的测定方法及试验[J]. 沈阳建筑大学学报，2020，36(5):910-916. LI Songhua，LI Shuang，ZHANG Yu，et al. Measurement method and Experiment of Wear Coefficient of Materials [J]. Journal of Shenyang Jianzhu University，2020，36(5):910-916.
[21] 罗远新，徐俊峰，王勇勤，等. 挤压筒内筒磨损有限元分析[J]. 重型机械，2019(4):73-77. LUO Yuanxin，XU Junfeng，WANG Yongqin，et al. Finite element analysis of internal wear of extrusion cylinder [J]. Heavy Machinery，2019(4):73-77.
[22] 于会媛，张来斌，樊建春，等. 套管磨损三维表面形貌恢复及其机理分析[J]. 摩擦学学报，2007，27(5):477-481. YU Huiyuan，ZHANG Laibin，FAN Jianchun，et al. Three-dimensional surface topography recovery and mechanism analysis of casing wear [J].Tribology，2007，27(5):477-481.
[23] XIAO Minglai，JIAN Chaohan，PENG Gao，et al. Research on wear mechanism of solid lubrication bearing in vacuum environment[J]. Applied Mechanics and Materials，2015，4092:424-429.
[24] BURDZIK R，FOLEGA P，ŁAZARZ B，et al. Analysis of the impact of surface layer parameters on wear intensity of friction pairs[J]. Tehnički vjesnik，2012，57(4):987-993.