摘要
星罩组合体是火箭的重要组成部分,其外表平滑且形状各异。火箭组装过程中,需完成星罩及不同舱段组合体的水平吊运,通过其结构特点研究其吊运连接方式,可减少对星罩组合体的接触损伤。文中设计一种通用星罩组合体水平吊运工装,用于星罩组合体水平生产装配过程中的安装拆卸。吊运工装采用模块组合连接的结构形式,具备安全、可靠、通用、操作方便的特点。吊运工装端面适配器设计为刚性结构,端面适配器与星罩组合体的平面连接端通过螺栓组有效连接,端面适配器延伸出一个连接杆,连接杆的上端与平衡梁下端螺栓法兰连接。平衡梁上端设有移动吊点,移动吊点可沿平衡梁长度方向无级调节,用于适应星罩组合体不同质心位置,实现水平稳定吊运操作。通过三维仿真找准吊点位置,移动梁体上端配重块对吊运工装整体配平,并对吊运过程进行状态模拟。采用定向升降机构实现了吊运工装与星罩锥形端的有效连接。经过有限元分析计算及后处理,验证了吊运工装的强度、刚度。对吊运工装的特点进行总结,拓展了同类产品的应用。
The star cover assembly is an important part of the rocket,which has smooth appearance and different shapes.In the process of rocket assembly,the star cover and different cabin sections need to be hoisted horizontally.Based on the structural characteristics,the connection method for hoisting is studied in order to reduce the contact damage to the star cover assembly.In this paper,a universal horizontal hoisting tool for the star cover assembly is proposed,which is used for the assembly and disassembly of the star cover assembly in the horizontal production assembly process.The hoisting tooling is connected in modules,and has the characteristics of safety,reliability,universality and convenient operation.The end face adapter of the hoisting tool is of a rigid structure and connected to the plane connecting end of the star cover assembly through a bolt group,a connecting rod extends from the end face adapter,and the upper end of the connecting rod is connected with a bolt flange at the lower end of a balance beam.There is a movable hoisting point at upper end of the balance beam and can be steplessly adjust along the length direction of the balance beam to adapt to different mass center positions of the star cover assembly and realize horizontal and stable hoisting.The hoisting point position is found through three-dimensional simulation,the upper end of the beam counterweight is moved to balance the overall hoisting tooling,and the state of the hoisting process is simulated.A directional hoisting mechanism is adopted to realize the effective connection between the hoisting tooling and the conical end of the star cover.The strength and stiffness of the hoisting tooling are verified by finite element analysis and post-processing.The characteristics of hoisting tooling are summarized,and the application of similar products is expanded.
作者
解超
张洪亮
Xie Chao;Zhang Hongliang
出处
《起重运输机械》
2023年第22期52-56,共5页
Hoisting and Conveying Machinery
关键词
星罩组合体
火箭
吊运
工装
star cover assembly
rocket
hoisting
tooling
