搅拌机设计算书.pdf

摘要 一体化混凝土泵车是采用液压作为动力源的混凝土搅拌输送一体化设备，主要用于 非承重墙、水暖地面的浇筑。作业对象为轻骨料混凝土。整机体积小，重量轻，移动灵 活方便，对于小作业场地小工作任务量场合有较强的适用性。 该机主要包括搅拌机构、输送机构、液压泵站和底盘结构。其中搅拌机构是参考JD350 型搅拌机结构进行设计的，采用单卧轴强制式搅拌原理，主要包括搅拌轴、搅拌叶片及 其支撑、搅拌筒和卸料门的设计。该搅拌机构采用液压马达驱动，利用液压泵站供能， 起动无冲击，运转平稳。其难点在于轴端密封的结构设计和卸料门的结构设计。其轴端 密封采用搅拌机常用浮封环密封与迷宫式密封相结合的方式。卸料门利用连杆机构原理 手动开启，并通过多个调整部件确定卸料门的运动轨迹并与搅拌筒形成密封，防止搅拌 过程中出现泄露现象。 采用Solidworks软件中的COSMOSWorks和COMOSmotion插件进行搅拌装置的有限元 分析、动态模拟，并进行干涉检查。 关键词：混凝土泵车 搅拌机构 轴端密封 卸料门 ABSTRACT Key words: concrete pump mixinginstitutionshaft sealing discharge gate 目录 第1 章概述··········································································1 1.1 混凝土搅拌机械简介···························································1 1.2 混凝土输送机械概述···························································3 1.3 混凝土输送机械概述···························································9 1.4 本课题研究的内容与给定的技术参数········································9 1.5 总体方案的拟定································································9 第2 章一体化泵车搅拌机构总体设计······································10 2.1 总体设计的原则······························································10 2.2 一体化混凝土泵车搅拌机构总体设计······································11 第3章一体化泵车搅拌机构设计············································12 3.1 搅拌机构的主要参数及其关系介绍·········································12 3.2 搅拌机构的主要参数的确定·················································14 第4章单卧轴搅拌机结构参数及搅拌功率的计算······················15 4.1 搅拌机构各参数的符号和定义··············································15 4.2 影响混凝土比阻力的因素分析及试验回归计算···························16 4.3 叶片最大线速度的确定······················································18 4.4 容积利用系数的分析·························································19 4.5 叶片大小及叶片角度的选择·················································20 4.6 搅拌筒长径比的分析验算···················································20 4.7 搅拌功率的计算·