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针对目前门座式起重机设计过程中存在的问题，本文详细叙述了门座式起重机的总体设计步骤：包括确定门座式起重机的总体设计参数、门座式起重机的机构和结构形式、进行货物平衡系统设计、验算门座式起重机的整机抗倾覆平衡性、轮压计算。
本文对多种臂架类起重机新型自重平衡系统的工作原理进行理论分析并选择适合的型式创建其数学模型,借用遗传算法工具箱对其工作特性进行计算分析,通过对自重不平衡力等特性参数方面进行比较分析得出摇架平衡梁滑道式自重平衡系统具有适用性和有效性,在此基础上开发一套包含此自重平衡系统的门座起重机变幅系统开发软件以指导实际的工程设计。最后运用多体系统动力学软件ADAMS对装配进行运动学和动力学校核分析。通过运用装配设计方法，获得了门座式起重机的相关运动性能数据，为门座式起重机的设计和性能评估提供了一种新的方法，减少设计开发成本。
关键词：门座式；起重机；平衡系统；装配；校核
In view of the current problems in the design of gantry cranes，this paper describes in detail the overall design steps of gantry cranes，including determining the overall design parameters of gantry cranes，the mechanism and structure of gantry cranes，the design of cargo balance system，checking the anti-overturning balance of gantry cranes and the calculation of wheel pressure.
In this paper，the working principle of the new weight balancing system of various kinds of boom cranes is analyzed theoretically，and the suitable type is selected to create its mathematical model. Using the genetic algorithm toolbox to calculate and analyze its working characteristics，the application and validity of the sliding-weight balancing system of the rocker beam are compared. Finally，the multi-body system dynamics software ADAMS is used to analyze the assembly kinematics and dynamic school kernel. Through the use of clothing with the design method，the relevant motion performance data of the gantry crane are obtained，which provides a new method for the design and performance evaluation of the gantry crane and reduces the design and development cost.
Keywords: door seat type；crane；balance system；assembly；check
目 录
3.1各工作机构、金属结构的计算工况、计算载荷以及载荷组合14
