球墨铸铁应用于平衡重式内燃叉车转向节的论证研究  

conditionsDemonstration Research of Ductile Iron Applied to Steering Knuckle of Counterbalanced Internal Combustion Forklift

作　　者：余越 郭顺 石云 耿淑伟[4] YU Yue;GUO Shun;SHI Yun;GENG Shu-wei(Anhui Heli Co.,Ltd.,Hefei 230601,Anhui,China;Anqing Heli Axle Co.,Ltd.,Anqing 246001,Anhui,China;Hefei Casting and Forging Factory,Hefei 230601,Anhui,China;College of Civil Engineering,Hefei University of Technology,Hefei 230009,Anhui,China)

机构地区：[1]安徽合力股份有限公司,安徽合肥230601 [2]安庆合力车桥有限公司,安徽安庆246001 [3]合肥铸锻厂,安徽合肥230601 [4]合肥工业大学土木与水利工程学院,安徽合肥230009

出　　处：《铸造》2025年第1期38-41,共4页Foundry

摘　　要：大批量生产复杂形状工件时,铸造被认为是满足性能要求前提下生产效率最高、成本最低的制造方法。本研究分别对45钢锻造成形的叉车转向节和球墨铸铁铸造的叉车转向节的应力分布进行了仿真分析,并对二者进行拉伸性能测试,结果表明:两者抗拉强度分别为766 MPa和785 MPa,安全系数分别为2.048和2.04。在球墨铸铁铸造的叉车转向节的轴肩根部开设用于卸荷的退刀槽,对其分别进行跌落和疲劳可靠性试验,验证了叉车转向节生产时采用QT600-3球墨铸铁铸件代替45钢锻造件的可行性。When mass production of complex shape workpiece is carried out,casting is considered to be the most efficient and lowest cost manufacturing method on condition of meeting the performance requirements.In this research,the stress distributions of forklift steering knuckle forged by 45 steel and cast by ductile iron were simulated and analized,respectively,and the tensile tests were carried out.The results show that the tensile strengths are 766 MPa and 785 MPa,and the safety factors are 2.048 and 2.04,respectively.The feasibility of using QT600-3 ductile iron casting in place of 45 steel forging in the production of forklift steering knuckle is verified through opening a tool withdrawal groove used to unload at the root of shaft shoulder and conducting the drop and fatigue reliability tests,respectively.

关 键 词：叉车转向节 球墨铸铁 45钢锻件 拉伸性能 耐冲击性 抗疲劳性 

分 类 号：TG255[金属学及工艺—铸造]