D_(22B)型长大平车渡板的设计研究  

Design of Gangway Foot Plate of D_(22B) Heavy-Duty Flat Car

作　　者：邹继军 张旭宁 曹蔚然 ZOU Jijun;ZHANG Xuning;CAO Weiran(Xi’an Branch,China Railway Special Cargo Logistics Co.,Ltd.,Xi’an 710000,Shaanxi,China;Beijing Branch,China Railway Special Cargo Logistics Co.,Ltd.,Beijing 100071,China)

机构地区：[1]中铁特货物流股份有限公司西安分公司,陕西西安710000 [2]中铁特货物流股份有限公司北京分公司,北京100071

出　　处：《铁路物流》2025年第4期39-43,共5页Railway Logisitics

基　　金：中铁特货物流股份有限公司科技研究开发计划课题(ZTTH-2024-KY-009)。

摘　　要：由于D_(22B)型长大平车底架两端未设有能开闭的加强型端板,现有钢结构渡板不便于安装、使用,不能满足特种大型轮式装备的滚装、滚卸要求。提出使用新材料、新结构和新固定方式的渡板设计方案。基于渡板的使用工况,分析渡板的承载要求和受力,进一步结合铝合金材料的特性,形成关键部位的结构设计,并提出纵向、垂向固定的设计方案。通过仿真进行垂向应力分析,仿真结果表明新型渡板强度满足最不利工况下的使用要求。通过整列各尺寸、重量特种轮式装备的实际滚装、滚卸作业验证。验证结果表明:D_(22B)型长大平车渡板各项性能均符合设计要求且优于现有钢结构渡板,可以明显提高特种大型轮式装备的装卸载效率。The underframe of the D_(22B) heavy-duty flat car is not equipped with the enhanced end plate that can be opened and closed at both ends,and the existing gangway foot plate with steel structure is not easy to install and use,making it fail to meet the requirements of roll-on and roll-off of special large wheeled equipment.Therefore,a design scheme for gangway foot plate using new materials,new structures,and new fixing methods was proposed.Based on the application of the gangway foot plate,the bearing requirements and forces of the gangway foot plate were analyzed,and the characteristics of aluminum alloy material were considered.The structural design of the key parts was formed,and the longitudinal and vertical fixed design schemes were proposed.The vertical stress analysis was carried out through simulation,and the simulation results show that the strength of the gangway foot plate ensures its application in the most unfavorable working conditions.Finally,through the actual roll-on and roll-off operation verification of the whole line of special wheeled equipment with different dimensions and weights,it is concluded that the performance of the gangway foot plate of the D_(22B) heavy-duty flat car is better than that of the existing gangway foot plate with steel structure,which can significantly improve the loading and unloading efficiency of special large wheeled equipment.

关 键 词：D_(22B)型长大平车 渡板 结构设计 强度校核 实际验证 

分 类 号：U294.2[交通运输工程—交通运输规划与管理]