铁路起重机回转小车轨道制造技术研究及应用

Research and application of manufacturing technologies for revolving trolley track of railway crane

铁路起重机型号、规格逐渐向大型、重型结构方向发展,小车的体积和质量也随之变大。在保证小车结构、起升速度、回转运行速度、吊装载荷不变的情况下,为实现系统运行平稳、提高精度的要求,对相关结构制造提出了更高要求。回转轨道及反滚轮轨道作为回转小车系统的核心部件,是保证小车系统在复杂工装下能平稳运行的关键。其中,回转轨道的耐磨性能和尺寸精度以及回转轨道和反滚轮轨道组合精度要求高,文中通过下料、制造、安装技术与材料的选择方面以及焊接技术方面的优化改进,采取有效的控制措施,并结合具体项目中的实践论证,提高了轨道尺寸精度、轨道硬度,延长了轨道使用寿命,整体制造水平得到了提升,质量得到了改善。

With the development of the model and specification of railway cranes towards large and heavy structures,the trolley system becomes larger and heavier.Under the condition of ensuring the trolley structure,lifting speed,slewing speed,hoisting load unchanged,the system running smoothly and the precision improving,higher requirements are faced in the manufacturing of related structures.As the core components of the slewing trolley system,slewing track and anti-roller track are the key components to ensure the smooth operation of the trolley system under complex tooling.Among them,the wear resistance and dimensional accuracy of slewing track and the combination accuracy of slewing track and anti-roller track require high requirements.By improving the blanking,manufacturing,installation technology,material selection and welding technology,and applying them to specific projects for verification,it is shown that effective control measures can effectively control and improve the dimensional accuracy and hardness of track,prolong the service life of track,and improve the overall manufacturing technology and quality.