毕业设计（论文）-MQ2535四连杆门座起重机回转机构设计.docx

PAGE 2 MQ2535四连杆门座起重机回转机构设计  摘 要 随着海上贸易的日渐繁荣，港口行业近年来飞速发展，门座起重机作为港口最广泛使用的高效率装卸设备也得到了越来越多的关注，回转机构是门座起重机的主要工作机构之一，载荷状况复杂，故障多发，同时关乎整机工作效率，对其进行研究具有重要的经济意义。 本文基于Solidworks、Adams等现代CAD技术软件完成了MQ2535四连杆门座起重机的整体设计和回转机构设计，主要包括以下内容： （1）根据给定的设计参数进行起重机总体布置设计，完成货物水平位移系统和臂架自重平衡系统的找点设计计算和校核，并完成了起重机自重载荷、风载荷等载荷计算，校核了起重机轮压及稳定性等问题。 （2）在回转机构设计中，主要内容包括回转机构的布置形式、回转支承的选型和回转驱动装置设计，在此基础利用CAD软件完成回转机构的工程图纸。 （3）利用Solidworks软件完成回转机构的三维建模，主要包括电机、联轴器、减速器、制动器、小齿轮、回转轴承等构件的建模，并装配完整。 （4）利用Adams软件完成回转机构的动力学仿真。主要流程包括：导入三维模型、添加特性、约束和驱动，仿真和速度图像分析。 本文的特色在于使用了众多的机械设计软件，对提高设计效率、缩短设计周期有重要的参考意义。 关键字：门座起重机；回转机构；三维建模；动力学仿真  Abstract With the increasing prosperity of maritime trade and the rapid development of the port industry in recent years, portal crane, as the most widely used high-efficiency loading and unloading equipment in the port, has also received more and more attention. Slewing gear is one of the main working mechanisms of a portal crane, its load condition is very complex, and faults occur frequently here. At the same time, it has a lot to do with the efficiency of the whole machine. So, it is of great economic significance to the study the portal crane. Based on Solidworks, Adams and other CAD software, this paper has completed the overall design and slewing design of MQ2535 four-bar portal crane, mainly including the following contents: (1) According to the given design parameters, carry out the overall layout design of the crane, complete the point-finding design calculation and check of the cargo horizontal displacement system and the self-weight balancing system, calculate the crane weight load, wind load, etc., and check the crane wheel pressure and stability, etc. (2) In the design of the slewing gear, it mainly includes the arrangement of the slewing gear, the selection of the slewing bearing and the design of the rotary drive mechanism. On this basis, CAD software is used to complete the engineering drawings of slewing gear. (3) Solidworks software is used to complete the three-dimensi