行星运动螺旋式混合机设计

常州工学院毕业设计

CHANGZHOU INSTITUTE OF TECHNOLOGY

毕 业 设 计 说 明 书

题目：行星运动螺旋式混合机设计

二级学院（直属学部）： 专业： 学生姓名： 指导教师姓名： 评阅教师姓名：

2014 年 月

班级： 学号： 职称： 职称：

常州工学院毕业设计

摘 要

混合单元操作广泛应用于化工、医药、食品、粉末冶金、涂料、电子、军工、材料等领域及新材料技术领域, 为保证固体粉末特别是对于有一定潮湿度和团聚粘结倾向的半干粉料之间的均匀混合，混合机械设备的选择至关重要。国产优质混合机基本上以采用上世纪80年代由合肥轻机（合肥中辰前身）引进的日本三菱技术为主。但这一技术在大量产和自动化控制上已经显出不足。随着饮料工业的持续、健康发展，国内企业对高端设备的需求也在不断增加，且一直依赖进口。为了改变这一局面，我国凭借多年的研究、制作混合机的经验，组织技术力量在广泛学习国外最新技术的基础上。从1990年至今，混合机从无到有，并逐渐形成规模生产，已广泛应用于生产实践中并且已有少量出口。在设计过程中，努力实现混合机的混合速度快、混合效果好。

本次设计的行星运动螺旋式混合机主要用于粉体混合。它的执行机构有两部分；一是通过三对锥齿轮传动的自转部分，二是由一对直齿轮和一对蜗轮蜗杆传动的公转部分。该机的机构设计，其主要设计内容是传动装置的设计，电动机的选择，减速器的设计，搅拌器的设计以及箱体的简单设计。最后进行总体的装配，达到设计的要求，本设计说明书对其进行了详细的阐述。

关键词：混合机 行星运动 自转 公转 减速器 螺旋

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行星运动螺旋式混合机设计

ABSTRACT

Mixers are widely used in high-tech fields of chemicals, medication, food industry, powder and metallurgy, paints, electronics, military and materials. In order to warrantee the mild blend between powder of humidity and half-dried with tendency of aggregative cohersion, it is critical to choose the right blending machine.Domestic quality mixers are basically to use the last century 80 's the Hefei light machine (predecessor of the Hefei zhongchen) introduced by Japan Mitsubishi technology . But this technique has shown less than in a lot of production and Automation control .With the sustained and healthy development of the beverage industry, domestic enterprises ' increasing demand for high-end devices, and has relied on imports.In order to change this situation, with many years of experience in research, production mixer, organizational technology in a wide range of study abroad on the basis of the latest technologies.From 1990 to the present, mixing machine from scratch, and gradually achieve scale production, has been widely applied in practice and has a limited number of exports.During the design process to achieve mixer mixing speed, blend well.

In this design the blending machine of spiral type with planetary motion is mainly used in blending different powders. There are two actuators in this machine, one is the autorotation driven by three pair of bevel gear, the other is the revolution driven by a pair of straight and worm gear transmission. And the main parts of this design are about the design of drive and decelerator, choose of motor, design of blender and box. In the end the assembly of whole parts and the requirement of design are elaborated.

Key words: Blender Planetary motion Autorotation Revolution Decelerator Helicism

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常州工学院毕业设计

目 录

摘 要 ......................................................................................................................................................... 1 ABSTRACT ................................................................................................................................................... 2 第1章 绪 论 .............................................................................................................................................. 5 1.1 选题背景及意义 ................................................................................................................................. 5 1.2 国内外研究状况 ................................................................................................................................. 5 第2章 机械传动装置的总体设计 ............................................................................................................... 7 2.1 总体方案 ............................................................................................................................................. 7 2.2 电动机的选择 ..................................................................................................................................... 7 2.3 分配各级传动比 ................................................................................................................................. 8 2.3.1 自转部分 ..................................................................................................................................... 8 2.3.2 计算自转部分传动装置的运动和动力参数 .............................................................................. 8 2.3.3 公转部分 ..................................................................................................................................... 9 2.3.4 计算公转部分传动装置的运动和动力参数 ............................................................................ 10 2.4 本章小结 ........................................................................................................................................... 10 第3章 机械传动件的设计 .......................................................................................................................... 11 3.1 带轮的设计和校核 ............................................................................................................................ 11 3.2 齿轮的设计和强度校核 ................................................................................................................... 12 3.2.1 自转部分高速级齿轮传动的设计计算.................................................................................... 12 3.2.2 齿轮的校核 ............................................................................................................................... 15 3.2.3 自转部分低速级齿轮传动的设计计算.................................................................................... 16 3.2.4 齿轮的校核 ............................................................................................................................... 18 3.2.5 公转部分直齿轮设计与计算 ................................................................................................... 19 3.2.6 齿轮的校核 ............................................................................................................................... 21 3.3 公转部分蜗杆传动设计与计算........................................................................................................ 22 3.3.1 选择齿轮的材料、热处理、精度 ........................................................................................... 22 3.3.2 初步设计齿轮传动的主要尺寸 ............................................................................................... 22 3.3.3 蜗杆的校核 ............................................................................................................................... 23 3.4 轴的设计和校核 ............................................................................................................................... 23 3.4.1 轴的结构设计 ........................................................................................................................... 23 3.4.2 轴的最小直径估算 ................................................................................................................... 24 3.4.3 各轴段直径和长度的确定 ....................................................................................................... 25 3.4.4 轴承的选择 ............................................................................................................................... 28 3.4.5 键的选择 ................................................................................................................................... 28 3.4.6 轴的受力分析和刚度校核 ....................................................................................................... 28

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