塑料切粒机设计
摘要
立足于21世纪,塑料使用已成为家常之事,人们的日常生活也离不开塑料,加之塑料滥用已经造成很多污染,因此塑料切粒机的应用必不可少,因此,塑料切粒机具有很大的发展前景。
塑料切粒机是塑料回收机械系统的一部分,其功能为将塑料拉条进行切割。它的动力源为调速电机,传动方式主要有带轮传动和齿轮传动,执行构件为滚刀。其总体运作方案为塑料条经过塑料辊筒的牵引被输送到滚刀,然后进行切割。
本文按照零件工艺设计的基本流程,经过对比论证,选择了实用正确的工艺路线。首先对结构进行了设计,其次从零件工艺分析到工艺流程的确定以及对各零件的选择与校核,每步都给出了详细的说明。
关键词:滚刀,切割,输送。
Abstract
Based o
n the 21st ce
ntury, plastics have become commo
nplace thi
ngs, people's daily life is i
nseparable from the plastic, coupledwith plastic abuse has caused a lot of pollutio
n, so plastic cutti
ng gra
nulati
ng machi
ne applicatio
ns is esse
ntial. Therefore, plastic gra
nulator has great prospects for developme
nt. Plastic gra
nulator is a part of the mecha
nical system of plastic recycli
ng, its fu
nctio
n is the plastic brace for cutti
ng. Its power source is the speed motor, the tra
nsmissio
n mode mai
nly has the beltwheel drive a
nd the gear drive, the executive member is the hob. The overall operatio
n scheme for plastic strip after tractio
n plastic roller is supplied to the hob, a
nd the
n cutti
ng. Accordi
ng to the basic flow of parts process desig
n, this paper chooses the practical a
nd correct tech
nological route through compariso
n a
nd demo
nstratio
n.. First o
n the structure desig
n, seco
ndly from parts process a
nalysis to process the determi
natio
n a
nd selectio
n a
nd check of the parts, each step is give
n a detailed descriptio
n. Keywords: hob, cutti
ng, tra
nsportatio
n.. 目录 第一章绪论1 1.1塑料切粒机的工作原理及特点1 1.2塑料切粒机的发展历史1 1.3塑料切粒机的发展趋势2 1.4塑料切粒机的应用范围3 第二章总体方案设计4 2.1构思思路4 2.2拟定传动方案4 2.3电动机的选择5 2.4传动装置的运动学和动力学参数计算6 第三章塑料切粒机的分类与形式8 3.1塑料切粒机的分类及结构形式8 3.1.1分类8 3.1.2结构形式8 第四章传动机构的设计与计算9 4.1带轮传动9 4.2齿轮传动..10 第五章轴的设计与计算12 5.1滚刀轴的设计15 5.1.1:选取轴的材料和热处理方法: 15 5.1.2:初步估算轴的直径: 15 5.1.3:滚刀轴轴的结构设计: 15 5.2:滚刀轴的受力分析: 16 5.2.1:画出受力简图: 17 5.2.2:计算支座反力: 17 5.2.3:计算弯矩: 18 5.3:判断危险截面和校核: 20 5.3.1:判断危险截面: 20 5.3.2按弯扭合成强度校核: 20 5.4:输出轴的设计: 20 5.4.1:选取轴的材料和热处理方法: 20 5.4.2:计初步估算轴的直径: 20 5.4.3:输出轴的结构设计: 21 5.5:滚筒轴的受力分析: 22 5.5.1:画出受力简图: 22 5.5.2:计算支座反力: 23 5.5.3:计算弯矩: 23 5.6:判断危险截面和校核: 25 5.6.1:判断危险截面: 25 5.6.2:按弯扭合成强度校核: 26 5.7滚筒轴的设计26 5.8轴的校核27 5.8.1滚刀轴的校核27 5.8.2滚筒轴的校核32 第六章键的选择与强度校核36 6.1滚刀轴上键的选择及校核36 6.2滚筒轴上键的选择及校核36 第七章滚动轴承的选择与校核38 7.1滚刀轴上的滚动轴承38 7.2滚筒轴上的滚动轴承39 总结42 参考文献44
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n the 21st ce
ntury, plastics have become commo
nplace thi
ngs, people's daily life is i
nseparable from the plastic, coupledwith plastic abuse has caused a lot of pollutio
n, so plastic cutti
ng gra
nulati
ng machi
ne applicatio
ns is esse
ntial. Therefore, plastic gra
nulator has great prospects for developme
nt. Plastic gra
nulator is a part of the mecha
nical system of plastic recycli
ng, its fu
nctio
n is the plastic brace for cutti
ng. Its power source is the speed motor, the tra
nsmissio
n mode mai
nly has the beltwheel drive a
nd the gear drive, the executive member is the hob. The overall operatio
n scheme for plastic strip after tractio
n plastic roller is supplied to the hob, a
nd the
n cutti
ng. Accordi
ng to the basic flow of parts process desig
n, this paper chooses the practical a
nd correct tech
nological route through compariso
n a
nd demo
nstratio
n.. First o
n the structure desig
n, seco
ndly from parts process a
nalysis to process the determi
natio
n a
nd selectio
n a
nd check of the parts, each step is give
n a detailed descriptio
n. Keywords: hob, cutti
ng, tra
nsportatio
n.. 目录 第一章绪论1 1.1塑料切粒机的工作原理及特点1 1.2塑料切粒机的发展历史1 1.3塑料切粒机的发展趋势2 1.4塑料切粒机的应用范围3 第二章总体方案设计4 2.1构思思路4 2.2拟定传动方案4 2.3电动机的选择5 2.4传动装置的运动学和动力学参数计算6 第三章塑料切粒机的分类与形式8 3.1塑料切粒机的分类及结构形式8 3.1.1分类8 3.1.2结构形式8 第四章传动机构的设计与计算9 4.1带轮传动9 4.2齿轮传动..10 第五章轴的设计与计算12 5.1滚刀轴的设计15 5.1.1:选取轴的材料和热处理方法: 15 5.1.2:初步估算轴的直径: 15 5.1.3:滚刀轴轴的结构设计: 15 5.2:滚刀轴的受力分析: 16 5.2.1:画出受力简图: 17 5.2.2:计算支座反力: 17 5.2.3:计算弯矩: 18 5.3:判断危险截面和校核: 20 5.3.1:判断危险截面: 20 5.3.2按弯扭合成强度校核: 20 5.4:输出轴的设计: 20 5.4.1:选取轴的材料和热处理方法: 20 5.4.2:计初步估算轴的直径: 20 5.4.3:输出轴的结构设计: 21 5.5:滚筒轴的受力分析: 22 5.5.1:画出受力简图: 22 5.5.2:计算支座反力: 23 5.5.3:计算弯矩: 23 5.6:判断危险截面和校核: 25 5.6.1:判断危险截面: 25 5.6.2:按弯扭合成强度校核: 26 5.7滚筒轴的设计26 5.8轴的校核27 5.8.1滚刀轴的校核27 5.8.2滚筒轴的校核32 第六章键的选择与强度校核36 6.1滚刀轴上键的选择及校核36 6.2滚筒轴上键的选择及校核36 第七章滚动轴承的选择与校核38 7.1滚刀轴上的滚动轴承38 7.2滚筒轴上的滚动轴承39 总结42 参考文献44
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