混凝泵车回转机构、臂架油缸及回转台的毕业设计（机械CAD图纸）.doc

摘要 随着回转机构）、 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 supporting Hydraulic system The tank of boom The turret目 录 1 绪论 1 1.1 概述 1 1.2 国内外混凝土泵车的发展概况 1 1.3 混凝土泵车的选择与技术管理 3 2 泵车的基本组成及主要技术参数确定 5 2.1 混凝土泵车的基本组成与构造 5 2.1.1 混凝土泵车基本组成 5 2.1.2 混凝土泵车构造 5 2.2 主要性能参数的确定 6 3 混凝土泵车总体结构设计方案 7 3.1 底盘系统设计与选型 7 3.2 泵送系统设计 7 3.3 臂架系统设计 8 3.4 支腿油箱设计 8 3.5 回转机构设计及回转台选型计算 9 3.6 操纵控制系统设计 10 4 回转机构设计 11 4.1回转机构与回转支承装置简述 11 4.2 回转支承装置的选择 13 4.2.1 载荷的确定 13 4.2.2 回转支承装置的受力分析 13 4.2.3 回转支承装置的强度计算 15 4.2.4 回转支承联接螺栓选型及强度校核 16 4.3 回转驱动装置的传动分析 17 4.3.1 回转阻力矩计算 18 4.3.2 马达轴回转功率 20 4.3.3 回转小齿轮设计 20 4.4 减速器的选择