混凝土泵车回转机构、臂架油缸及回转台的毕业设计.doc

摘要 随着国民经济的快速发展,建筑结构的的大型化和复杂化对混凝土机械提出了越来越高的要求。具有众多优点和较高经济效益的混凝土泵车得到了普及和应用,混凝土泵车已成为当今建筑施工企业必不可少的专用设备。本文首先介绍了混凝土泵车的结构和特点,重点对混凝土泵车的回转机构和回转液压部分及臂架油缸进行了设计;同时对回转头部件与油缸相连的部件进行了强度校核,并根据泵车零部件标准确定了回转头的主要尺寸及组成部件。回转机构采用液压马达驱动减速器带动回转支承进行旋转,回转头安装在回转支承上随着回转支承转动,从而带动臂架在回转平台上在0~360°范围内转动,臂架展开收拢及其混凝土浇注时定位均是由变幅油缸推(拉)动变幅机构的运动来实现的。 本设计的具体内容主要包括: 1.回转机构、回转液压部分的设计,回转支承装置的选型与计算。 2.回旋支承满足上车布料杆(含混凝土总量)的倾翻力矩的计算。 3.回转台的强度校核及臂架油缸设计系统方案可行,能满足泵车性能要求。 本设计的主要特点是:机构简单,节省投资,控制方便。对目前国内的混凝土泵车的优化设计具有一定的参考价值。 关键词:混凝土泵车;回转机构;回旋驱动部分;液压系统;臂架液压缸;回转台 Abstract As the rapid development of the national economy,incresing demands have been made by the large and complicated struction of the construction.Pump trucks with many advantages and economic benefits have been used widely and they have been the essential equipment during the contruction today. This paper firstly introduces the structur and features of the pump trucks with the most important of the design of the swing body and calculate the strength of the mechanical parts of the rotary and oil bank and make sure the main sizes and parts of the rotary head according the standard parts of the pump car. The-turn-around-organlitation,makes the decelation machine round by the liquid-press-machine,the rotary head which installed on rotary suface moves by it and makes the Arm turn around during 0°~360°,the function of Arm machine is achieved by the moving of Oil Bank. The specific contents including: The specific of the Rotary and Rotarry hydraulic part,also the selection and calculation of the Rotarry support. The calculation of the rollover torqne of the Roundabout suport. The projct of thecalculation of rotarry base and the design of the oil urn is resonable and can meet the requirments. The main features of the design are:simle structure low investment convenient control.The design has some referent value to the domestic optinal design of pump trucks. Key word: Pumpcrete machine vehicle Swiveling mechanism Maneuver