自润滑杆端关节轴承压装对启动摩擦力矩的影响分析
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摘要
以某自润滑杆端向心关节轴承无载启动力矩为控制指标,通过压装试验分析压配和收压工序对轴承无载启动力矩的影响,并通过材料成形仿真分析压配、收压工序和推出试验对轴承接触性能的影响。结果表明:压配和收压阶段对轴承的无载启动摩擦力矩影响较大,收压阶段使摩擦力矩明显下降。最后,根据加工水平和试验分析结果确定了满足性能指标要求的杆端座孔与轴承外圈的配合量和收压参数。
The no-load starting torque of a rod end self-lubricating spherical plain bearing is taken as control index.The influence of press-fit and press-down processes on no-load starting torque of the bearing is analyzed by press assembly test,and the influence of press-fit,press-down processes and push-off test on contact performance of the bearing is analyzed by material forming simulation. The results show that the no-load starting friction torque of the bearing is greatly affected by press-fit and press-down stages,and the friction torque decreases significantly during press-down stage. Finally,according to processing level and test analysis results,the fit between rod end hole and outer ring and press-down parameters that meet performance index requirements are determined.
The no-load starting torque of a rod end self-lubricating spherical plain bearing is taken as control index.The influence of press-fit and press-down processes on no-load starting torque of the bearing is analyzed by press assembly test,and the influence of press-fit,press-down processes and push-off test on contact performance of the bearing is analyzed by material forming simulation. The results show that the no-load starting friction torque of the bearing is greatly affected by press-fit and press-down stages,and the friction torque decreases significantly during press-down stage. Finally,according to processing level and test analysis results,the fit between rod end hole and outer ring and press-down parameters that meet performance index requirements are determined.
引文
[1]魏立保,陈有光.自润滑关节轴承的研制与应用[J].轴承,2008(5):8-10.
[2]李如琰.聚四氟乙烯纤维织物在关节轴承上的应用[J].功能材料,2004,35(增刊1):2221-2223.
[3]高亚东,张曾锠,余建航.旋翼变距拉杆关节轴承磨损故障特征及磨损程度识别[J].南京航空航天大学学报,2006,38(1):6-10.
[4] MA J,YANG Y L,QI X W. Tribological performances of fabric self-lubricating liner with different weft densities under severe working conditions[J]. Indian Journal Fibre&Textile Research,2015,40(3):293-300.
[5] KIM B C,LEE D G. Endurance and performance of a composite spherical bearing[J]. Composite Structures,2009,87(1):71-79.
[6] ORSOLINI A,BOOKER J D. Modelling capabilities required for the double nosing process in the assembly of spherical plain bearings[J]. Proceedings of the Institution of Mechanical Engineers,2012,226(5):930-940.
[7] RBC. Spherical plain bearings[EB/OL]. http:∥www.rbcbearing. com,2004.
[8] SKF Corporation. SKF spherical plain bearings and rod ends catalogue[Z]. Sweden:Goteborg,2011.
[9]谢水生,李雷.金属塑性成形的有限元模拟技术及应用[M].北京:科学出版社,2008.
[10]张瑞芬,吴连平,杨晓翔.自润滑关节轴承二次挤压装配的有限元仿真分析[J].轴承,2015(11):20-22,56.
[2]李如琰.聚四氟乙烯纤维织物在关节轴承上的应用[J].功能材料,2004,35(增刊1):2221-2223.
[3]高亚东,张曾锠,余建航.旋翼变距拉杆关节轴承磨损故障特征及磨损程度识别[J].南京航空航天大学学报,2006,38(1):6-10.
[4] MA J,YANG Y L,QI X W. Tribological performances of fabric self-lubricating liner with different weft densities under severe working conditions[J]. Indian Journal Fibre&Textile Research,2015,40(3):293-300.
[5] KIM B C,LEE D G. Endurance and performance of a composite spherical bearing[J]. Composite Structures,2009,87(1):71-79.
[6] ORSOLINI A,BOOKER J D. Modelling capabilities required for the double nosing process in the assembly of spherical plain bearings[J]. Proceedings of the Institution of Mechanical Engineers,2012,226(5):930-940.
[7] RBC. Spherical plain bearings[EB/OL]. http:∥www.rbcbearing. com,2004.
[8] SKF Corporation. SKF spherical plain bearings and rod ends catalogue[Z]. Sweden:Goteborg,2011.
[9]谢水生,李雷.金属塑性成形的有限元模拟技术及应用[M].北京:科学出版社,2008.
[10]张瑞芬,吴连平,杨晓翔.自润滑关节轴承二次挤压装配的有限元仿真分析[J].轴承,2015(11):20-22,56.