设计简介
摘要
挤出机，主机是挤塑机，它由挤压系统、传动系统和加热冷却系统组成。挤出机是一种常见的塑料机械设备，近年来，中国常规挤出机及生产线，以优异的性价比逐渐走俏国际巿场。同时，中国在先进挤出技术领域不断创新，开拓出了多种新型挤出产品。精密挤出技术适应高精加工需要
精密挤出成型可以免去后续加工手段，更好地满足制品应用的需求，同时达到降低材料成本、提高制品质量的目的。如今，满足塑料制品精密直接挤出的需要，多种成熟的技术已经推向巿场，聚合物熔体齿轮泵就是其中一种重要手段。这一技术已经广泛应用于化纤、薄膜、型材、管材、板材、线缆、复合挤出、造粒等生产线。单螺杆塑料挤出机采用单个减速机、单个螺筒、螺杆采用正规型材、优质碳素钢。
特殊要求采用高强度耐腐蚀的合金钢经多级热处理和精加工而成，脱水排气，可配导热油节能装置，能耗比低。此次设计说明书根据具体参数的计算和工况的分析，从而制定了总体的控制方案。经过各种方案对比后，设计出挤出机低速轴齿轮的设计。
关键词： 挤出机； 低速轴齿轮；机筒；机头
Abstract
Extruder, the host is crowded molding machine, it is composed of extrusion system, transmission system and heating cooling system. Extruder is a kind of common plastic machinery and equipment, in recent years, China's conventional extrusion machine and production line, with excellent cost-effective popular international market gradually. At the same time, China in the field of advanced extrusion technology innovation, develop a variety of new products come out. Extrusion technology to meet the need of high precision processing
Precision extrusion can be removed from the follow-up processing method, better meet the needs of product application, at the same time to reduce the cost of materials, the purpose of improving the quality of the products. Today, meet the needs of plastic precision direct extrusion, a variety of mature technology has been to the market, the polymer melt gear pump is one of the important means. This technology has been widely used in chemical fiber, film, profile, pipes, plates, wire, composite extrusion, such as granulation production lines. Single screw plastic extruder using a single reducer, normal profile is used for a single screw barrel, screw, high quality carbon steel.
Special request is made of high strength and corrosion resistance of alloy steel after multi-stage heat treatment and finish machining, dehydration and exhaust, can match heat conduction oil energy saving device, low energy consumption ratio. The design specification according to the calculation of specific parameters and condition analysis, thus made the overall control scheme. Through comparing various schemes, designed extruder low speed shaft gear design.
Key words： Extruder；Low Speed Shaft Gear；Barrel;Head
目 录
引言 1
一．设计初步方案 1
二．本次设计的挤出机设计布置 1
第一章 挤出机的主要性能参数 2
1.1螺杆转速 2
1.2挤出机功率 2
1.3 轴向力P 3
1.4 生产能力 Q 3
第二章 电机的选择 4
第三章 减速器设计计算 5
3.1 传动部分设计计算 5
3.1.1 传动比计算及分配 5
3.1.2 各轴转速 5
3.1.3 各轴功率 6
3.1.4 各轴转矩 6
3.2 齿轮设计 6
3.2.1 高速级齿轮传动 6
3.2.2 低速级齿轮传动 11
3.3 速比齿轮轴及其上轴承的设计、选择和校核 15
3.3.1 基本轴径的设计 15
3.3.2 轴的校核、选取轴承及所选轴承的校核 17
3.4 各轴上联接齿轮的键的选取与校核 30
3.4.1 低速级齿轮的健及其校核 30
3.4 各轴上联接齿轮的键的选取与校核…………………… 31
第四章 螺杆的设计与校核 32
4.1 螺杆材料 32
4.2 螺杆形式 32
4.3 螺杆参数 32
4.4 螺杆结构 32
4.5 螺纹的断面形状 33
4.6 校核 34
第五章 机筒的设计及强度校核 35
5.1 机筒结构设计及材料选择 35
5.2 机筒参数 36
5.3 校核 36
第六章 .其他零部件的设计与校核 37
6.1 螺杆与轴联接处的花键的选择与校核 37
6.1.1 花键挤压强度校核 37
6.2 推力轴承的选择与校核 38
6.2.1 校验 39
6.2.2 寿命计算 40
6.3 联轴器的选择与校核 40
6.4 螺杆与机筒的组合设计 40
6.5机头的设计 40
6.6 温度控制 40
总结 41
参考文献 42
致谢 43
挤出机，主机是挤塑机，它由挤压系统、传动系统和加热冷却系统组成。挤出机是一种常见的塑料机械设备，近年来，中国常规挤出机及生产线，以优异的性价比逐渐走俏国际巿场。同时，中国在先进挤出技术领域不断创新，开拓出了多种新型挤出产品。精密挤出技术适应高精加工需要
精密挤出成型可以免去后续加工手段，更好地满足制品应用的需求，同时达到降低材料成本、提高制品质量的目的。如今，满足塑料制品精密直接挤出的需要，多种成熟的技术已经推向巿场，聚合物熔体齿轮泵就是其中一种重要手段。这一技术已经广泛应用于化纤、薄膜、型材、管材、板材、线缆、复合挤出、造粒等生产线。单螺杆塑料挤出机采用单个减速机、单个螺筒、螺杆采用正规型材、优质碳素钢。
特殊要求采用高强度耐腐蚀的合金钢经多级热处理和精加工而成，脱水排气，可配导热油节能装置，能耗比低。此次设计说明书根据具体参数的计算和工况的分析，从而制定了总体的控制方案。经过各种方案对比后，设计出挤出机低速轴齿轮的设计。
关键词： 挤出机； 低速轴齿轮；机筒；机头
Abstract
Extruder, the host is crowded molding machine, it is composed of extrusion system, transmission system and heating cooling system. Extruder is a kind of common plastic machinery and equipment, in recent years, China's conventional extrusion machine and production line, with excellent cost-effective popular international market gradually. At the same time, China in the field of advanced extrusion technology innovation, develop a variety of new products come out. Extrusion technology to meet the need of high precision processing
Precision extrusion can be removed from the follow-up processing method, better meet the needs of product application, at the same time to reduce the cost of materials, the purpose of improving the quality of the products. Today, meet the needs of plastic precision direct extrusion, a variety of mature technology has been to the market, the polymer melt gear pump is one of the important means. This technology has been widely used in chemical fiber, film, profile, pipes, plates, wire, composite extrusion, such as granulation production lines. Single screw plastic extruder using a single reducer, normal profile is used for a single screw barrel, screw, high quality carbon steel.
Special request is made of high strength and corrosion resistance of alloy steel after multi-stage heat treatment and finish machining, dehydration and exhaust, can match heat conduction oil energy saving device, low energy consumption ratio. The design specification according to the calculation of specific parameters and condition analysis, thus made the overall control scheme. Through comparing various schemes, designed extruder low speed shaft gear design.
Key words： Extruder；Low Speed Shaft Gear；Barrel;Head
目 录
引言 1
一．设计初步方案 1
二．本次设计的挤出机设计布置 1
第一章 挤出机的主要性能参数 2
1.1螺杆转速 2
1.2挤出机功率 2
1.3 轴向力P 3
1.4 生产能力 Q 3
第二章 电机的选择 4
第三章 减速器设计计算 5
3.1 传动部分设计计算 5
3.1.1 传动比计算及分配 5
3.1.2 各轴转速 5
3.1.3 各轴功率 6
3.1.4 各轴转矩 6
3.2 齿轮设计 6
3.2.1 高速级齿轮传动 6
3.2.2 低速级齿轮传动 11
3.3 速比齿轮轴及其上轴承的设计、选择和校核 15
3.3.1 基本轴径的设计 15
3.3.2 轴的校核、选取轴承及所选轴承的校核 17
3.4 各轴上联接齿轮的键的选取与校核 30
3.4.1 低速级齿轮的健及其校核 30
3.4 各轴上联接齿轮的键的选取与校核…………………… 31
第四章 螺杆的设计与校核 32
4.1 螺杆材料 32
4.2 螺杆形式 32
4.3 螺杆参数 32
4.4 螺杆结构 32
4.5 螺纹的断面形状 33
4.6 校核 34
第五章 机筒的设计及强度校核 35
5.1 机筒结构设计及材料选择 35
5.2 机筒参数 36
5.3 校核 36
第六章 .其他零部件的设计与校核 37
6.1 螺杆与轴联接处的花键的选择与校核 37
6.1.1 花键挤压强度校核 37
6.2 推力轴承的选择与校核 38
6.2.1 校验 39
6.2.2 寿命计算 40
6.3 联轴器的选择与校核 40
6.4 螺杆与机筒的组合设计 40
6.5机头的设计 40
6.6 温度控制 40
总结 41
参考文献 42
致谢 43
