高机械强度推力杆的材料选择与制造工艺优化研究

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中图分类号：U462 收稿日期：2025-10-17 DOI: 10.19999/j.cnki.1004-0226.2025.11.016

Research on Material Selection and Manufacturing Process Optimization of High Thrust Rods

Fu Yu Yantai Chenyu Automobile Components Co.，Ltd.,Yantai 265500,China

Abstract:Inresponse toissuessuchasfatiguecracks，plastic deformation,andfracturefailureoccuring inthethrustrodofmining wide-bodiedvehiclesunderheav-loadconditios，asystematicoptimizatinstudyomateralselectionandmanufacturingpcesses wa conducted.Bycomparingandanalzingthe mechanicalpropertiesofvariouscandidate materials，anaplicablelow-allyhigh strengthtelsystemwasselected.Theorthogonalexperimentalmethodwasemployed tooptimizethealloyelementcomposition，and a systematic studywasconductedontheinfluenceofheat treatment parameterssuchasquenching temperature,colingrate,ndtemperingtemperatureontheevolutioofmicrostructure.Basedonmetalograhicanalysisandmechanicalpropertytestig，aceaion modelbetween processparameters，microstructure，and propertieswasestablished.Afteroptimization，thetensilestrength，yield strengthandmpacttoughessoferustderesiificantlyimproedndtetigelifeasgeatlyetededtigte quirementsofheavy-loadtransportationinmines.Thisprovidesechnicalsupportforthedesignandmanufacturingofkeyload-bearing components in mining vehicles.

Key words:Thrust rod;Materialscreening;Heat treatment process;Organizational performance;Fatigue life

1前言

矿用宽体车推力杆作为连接车架与后桥的核心传力构件，承担着驱动力传递、制动力矩平衡及悬挂系统导向等多重功能，在矿山运输工况下推力杆长期承受拉压交变载荷、路面冲击及扭转复合应力，工作环境恶劣。（剩余5949字）