适用于重型自卸车牵引装置的设计  

Design of Traction Device for Heavy Dump Truck

作　　者：张潇 田志强 章喆 ZHANG Xiao;TIAN Zhiqiang;ZHANG Zhe(Shaanxi Heavy-Duty Truck Co.,Ltd.,Shaanxi Xi’an 710200)

机构地区：[1]陕西重型汽车有限公司,陕西西安710200

出　　处：《汽车实用技术》2022年第5期42-45,共4页Automobile Applied Technology

摘　　要：根据城建渣土、矿区等非公路运输工况,文章对重型自卸车的牵引装置进行设计研究,规避其在牵引过程中,横梁折弯、装置断裂、螺纹孔失效等潜在失效模式,有效降低设计质量损失,提升设计质量管控水平。该牵引装置安装在左右前伸梁之间,左右连接座满足保险杠左、右托架安装要求,设计应关注零部件本身功能需求、强度需求、周边环境数字样车技术校核以及前拖钩手部安装空间。当车辆陷入泥坑时,可将牵引拖钩与牵引装置连接,通过拖拉解困。文章运用Hyperworks软件,在设计阶段对牵引装置三款方案进行三维建模和应力分析,通过分析应力分布结果,对方案进行修正和优化;同时,设计方案需考虑零部件制造工艺、装配可行性和经济性,综合各方面因素确定最优方案;供方完成样件试制后,组织模拟牵引工况的台架试验,通过零部件应变测试和强度测试,得出零部件满足重型自卸车的牵引工况需求;零部件批量投入市场后,跟踪其应用情况。According to the non-highway transportation conditions such as urban construction slag soil and mining area, the traction device of heavy dump truck is designed and studied in order to avoid the potential failure modes such as the bending of crossbeam, the fracture of device and the failure of threaded hole during the traction process, effectively reduce the loss of design quality,improve the design quality control level. The traction device is installed between the left and right extension beams. The left and right connecting seats meet the installation requirements of the left and right brackets of the bumper, the design should pay attention to the functional requirement, the strength requirement of the parts, the DMU check of the surrounding environment and the installation space of the front hook hand. When the vehicle is stuck in a mud pit, the towing hook can be connected with the towing device and the trap can be solved by dragging. In this paper,Hyperworks software is used to carry out three-dimensional modeling and stress analysis of the three plans of the traction device in the design phase, the design scheme should take into account the manufacturing process, assembly feasibility and economy of the parts and components, and determine the best scheme by synthesizing all factors, through the strain test and strength test, it is concluded that the parts meet the demand of heavy dump truck’s traction condition, and the application of the parts is tracked after they are put into the market in batches.

关 键 词：重型自卸车 牵引装置 潜在失效模式及后果分析 HYPERWORKS 台架试验 

分 类 号：U463[机械工程—车辆工程]