螺旋输送机(倾斜10o)的设计

螺旋输送机(倾斜10)

摘要:螺旋输送机是利用电机带动螺旋回转,推移物料以实现输送目的的机械,它能水平、倾斜或垂直输送,具有结构简单、横截面积小、密封性好、操作方便、维修容易、便于封闭运输等优点。本课题重点研究在与驱动装置的合理选择,对驱动装置的合理给螺旋输送机的效率,稳定,安全性的提高大的作用。 本次毕业设计是关于输送机的设计。首先对输送机作了简单的概述;接着分析了输送机的选型原则及计算方法;然后根据这些设计准则与计算选型方法按照给定参数要求进行选型设计;接着对所选择的输送机各主要零部件进行了校核。普通型输送机由六个主要部件组成:传动装置,机尾和导回装置,中部机架,拉紧装置以及胶带。最后简单的说明了输送机的安装与维护。

o

关键词:螺旋输送机 输送系统 选型设计 主要部件

Screw conveyor(Tilt 10o )

Abstract :Screw conveyor is the use of motor driven rotary screw, the passage of materials in order to achieve the purpose of transportation machinery, it can level, tilt or vertical transmission, a simple structure, small cross sectional area, sealing, and easy to operate, easy maintenance, facilitate closure transportation and other advantages. Focus on the issue and drive in a reasonable choice. Drive screw conveyor to the reasonable efficiency, stability, security, the improvement of the role.

The design is a graduation project about the conveyor. At first, it is introduction

about the conveyor. Next, it is the principles about choose component parts of conveyor. After that the belt conveyor abase on the principle is designed. Then, it is checking computations about main component parts. The ordinary conveyor consists of six main parts: Drive Unit, Jib or Delivery End, Tail Ender Return End, Intermediate Structure, Loop Take-Up and Belt. At last, it is explanation about fix and safeguard of the belt conveyor.

Key words:screw conveyor delivery system type design main parts

目 录

摘要„„„„„„„„„„„„„„„„„„„„„„„„„„„„„„„ 1 Abstract „„„„„„„„„„„„„„„„„„„„„„„„„„„„„ 2

第一章 引言„„„„„„„„„„„„„„„„„„„„„„„„„„„„3

1.1 关于本次毕业设计„„„„„„„„„„„„„„„„„„„„„„3

1.2 螺旋输送机产品概述„„„„„„„„„„„„„„„„„„„„„3

1.3 螺旋输送机的应用范围„„„„„„„„„„„„„„„„„„„„4

1.4 螺旋输送机主要热点„„„„„„„„„„„„„„„„„„„„„4

1.5 螺旋输送机工作原理„„„„„„„„„„„„„„„„„„„„„4

1.6 螺旋输送机整机布置形式„„„„„„„„„„„„„„„„„„„5

1.7 螺旋输送机的发展历史及趋势„„„„„„„„„„„„„„„„„5

第二章 螺旋输送机的设计„„„„„„„„„„„„„„„„„„„„„„8

2.1 总体方案设计„„„„„„„„„„„„„„„„„„„„„„„„8

2.2 螺旋输送机总体结构设计„„„„„„„„„„„„„„„„„„„8

2.3 螺旋输送机机体的设计„„„„„„„„„„„„„„„„„„„„9

2.4 驱动端装置的设计„„„„„„„„„„„„„„„„„„„„„ 12

2.5 中间轴承装置„„„„„„„„„„„„„„„„„„„„„„„ 14

2.6 尾端装置的设计„„„„„„„„„„„„„„„„„„„„„„ 16

2.7 驱动装置和尾端装置轴的校核„„„„„„„„„„„„„„„„ 17

第三章 减速器的设计„„„„„„„„„„„„„„„„„„„„„„„ 19

3.1 蜗轮蜗杆减速器的运动和动力参数„„„„„„„„„„„„„„ 19

3.2 减速器的蜗杆设计„„„„„„„„„„„„„„„„„„„„„ 19

3.3 蜗轮轴的设计„„„„„„„„„„„„„„„„„„„„„„„ 23

3.4 蜗杆轴的设计„„„„„„„„„„„„„„„„„„„„„„„ 29

3.5 减速器箱体及附件的设计„„„„„„„„„„„„„„„„„„ 31

第四章 轴承的校核„„„„„„„„„„„„„„„„„„„„„„„„ 33

4.1 蜗杆轴滚动轴承计算„„„„„„„„„„„„„„„„„„„„ 33

第五章 键的校核„„„„„„„„„„„„„„„„„„„„„„„„„ 35

5.1 蜗杆轴端和联轴器的联结的键„„„„„„„„„„„„„„„„ 35

5.2 蜗轮与轴联结的键„„„„„„„„„„„„„„„„„„„„„ 35

5.3 蜗轮轴轴端和联轴器联结的键„„„„„„„„„„„„„„„„ 35

第6章 润滑和密封的设计„„„„„„„„„„„„„„„„„„„„„ 37

6.1 润滑„„„„„„„„„„„„„„„„„„„„„„„„„„„ 37

6.2 密封„„„„„„„„„„„„„„„„„„„„„„„„„„„ 37

6.3 附件的设计„„„„„„„„„„„„„„„„„„„„„„„„ 38 致谢„„„„„„„„„„„„„„„„„„„„„„„„„„„„„„„ 39 参考文献„„„„„„„„„„„„„„„„„„„„„„„„„„„„„ 40 附录1 英文文献翻译 „„„„„„„„„„„„„„„„„„„„„„„41 附录2 英文文献原文 „„„„„„„„„„„„„„„„„„„„„„„45

第一章 引言

1.1 关于本次毕业设计

1.1.1 毕业设计的目的

通过本次毕业设计,我们能够达到一些目的:

1) 培养我们综合运用和巩固扩展所学知识,提高理论联系实际的能力;

2) 培养我们搜集、阅读、分析和运用各种资料,手册等科技文献的能力;

3) 使我们更加熟练的运用AUTOCAD 、Word 等计算机办公软件,提高计算机辅

助设计的能力;

4) 训练和提高机械设计的基本理论和技能;

5) 培养独立思考,独立工作的能力

1.1.2 毕业设计的任务

1) 设计条件

运输物料为干燥煤粉,密度ρ=850Kg /m 3;

运输量为12T /h ;

运输长度为12m 。

2) 设计内容

a) 设计方案的选择与计算

b) 总体结构的设计,成套图纸及说明书

3) 设计关键

a) 仔细分析联系输送机的工作原理

b) 根据输送要求选择合适类型的类型输送机

c) 保证设计的类型输送机能够满足工作要求

1.2 螺旋输送机产品概述

螺旋输送机俗称绞龙,GX 型系列螺旋输送机是一种利用螺旋叶片的旋转,推动物料沿着料槽运送的输送设备,在建筑工地,储粮仓库,制造车间等,并在倾角β< 20 °的情况下,输送粉状,颗粒状和小块物料,使螺旋输送机对提高生产工作效率得到了很大体现,本次设计旨在对螺旋输送机进行创新设计,进一步提高它的实用性。

GX 型螺旋输送机是按照JB/T679-95《螺旋输送机》标准设计制造,GX 型螺旋输送机的螺旋直径有150mm ~600mm ,共有7种规格。在物料温度小于200℃,工作环境温度在-20℃至+50℃之间时,输送长度可达50m , 个别情况可达70m 。螺旋机驱动端轴承、尾部轴承置于料槽壳体外部减少了灰尘对轴承的影响,提高了螺旋机关键件的适用寿命。中间吊挂轴承采用滑动轴承,并设防尘密封装置,密封件用尼龙或塑料,因而密封性能好,耐磨性强,阻力小,寿命长。滑动轴承的轴瓦有粉末冶金、尼龙和巴氏合金,可根据不同需要选用,进出料口的灵活布置使其适应性更强,得到用户认可。

1.3 螺旋输送机的应用范围

GX 型螺旋输送机广泛应用在各种工业部门,如建材、冶金、化工、电力、煤炭、轻工、粮食及食品行业,适用于水平或者20 °倾角的,如水泥、煤粉、粮食、化肥、灰渣、砂子、焦炭等。

GX 型螺旋机对输送物料的要求,物料温度不得超过200℃,螺旋机不宜输送易变质的、粘性大的、易结块的物料。因为这些物料在输送时会粘结在一起,并随之旋转而不向前移动,或者在吊轴承处物料积塞而使机器不能正常工作,因此对于输送距离短,输送量不大,五磨琢性或磨琢性小,五粘结性或粘接性小,不怕破碎而又要求密闭输送的粉状和小块状的物料,采用螺旋输送机是很适宜的。

1.4 螺旋输送机主要特点

1. 结构简单、造价便宜;

2. 维修容易、操作安全;

3. 外形尺寸矮小,布置紧凑,便于多点装料与卸料;

4. 槽体密闭,物料损耗少;

5. 可输送较高温度的物料。

1.5 螺旋输送机工作原理

物料从进料口加入,装螺旋轴转动时,物料受到螺旋叶片法向推力作用。该推力的径向分力和叶片对物料的摩擦力,有可能带着物料绕轴转动,但由于物料本身的重力和料槽对物料的摩擦力的缘故,才不与螺旋叶片一起旋转,而在叶片法向推力的轴向分力的作用下,沿着料槽轴向前移动。

1.6 螺旋输送机整机布置形式

一台螺旋输送机通常由驱动装置、头节、若干标准中间节、选配中间节、尾节、进料口、出料口等组成,除头节和选配中间节外,各节螺旋机及机壳均有互换性。

螺旋机本体由头节、中间节、尾节三种组成。一般情况下,出厂总装时将中间节按长度长短依次排列,最长的中间节靠近头节,相同的中间节挨在一起。

在头节内装有止推轴承承受轴向力,在中间节装有中间吊挂轴承支承螺旋轴。螺旋

(S 制法)(D 制法)面的形式有实体螺旋和带式螺旋两种。各螺旋轴之间采用法兰式联接,

保证了连接轴的互换性,便于维修。

进料口是方形进料口,出料口有方形卸料口、手推式卸料口及齿条式卸料口。布置进出料口应注意保证料口至端部的距离,同时避免料口与吊轴承加油杯,机壳联接法兰,底座等相碰。

驱动装置有由JQ 2型电动机和JZQ 型减速器组成,即双JJ 型。按其装配方式的不同,它分为右装和左装两种。

图1-1 螺旋输送机简图

1.7 螺旋输送机的发展历史及趋势

1.7.1 螺旋输送机的发展历史

螺旋输送机的发展,分为有轴螺旋输送机和无轴螺旋输送机两种型式的发展过程。有轴螺旋输送机由螺杆,U 型料槽,盖板,进,出料口和驱动装置组成,一般还有水平式,倾斜式和垂直式三种:而无轴旋输送机则采用螺杆改为无轴螺旋,并在U 型槽内装置有可换衬体,结构简单,物料由进料口输入经螺旋推动后由出料口输出,整个传输过

螺旋输送机(倾斜10)

摘要:螺旋输送机是利用电机带动螺旋回转,推移物料以实现输送目的的机械,它能水平、倾斜或垂直输送,具有结构简单、横截面积小、密封性好、操作方便、维修容易、便于封闭运输等优点。本课题重点研究在与驱动装置的合理选择,对驱动装置的合理给螺旋输送机的效率,稳定,安全性的提高大的作用。 本次毕业设计是关于输送机的设计。首先对输送机作了简单的概述;接着分析了输送机的选型原则及计算方法;然后根据这些设计准则与计算选型方法按照给定参数要求进行选型设计;接着对所选择的输送机各主要零部件进行了校核。普通型输送机由六个主要部件组成:传动装置,机尾和导回装置,中部机架,拉紧装置以及胶带。最后简单的说明了输送机的安装与维护。

o

关键词:螺旋输送机 输送系统 选型设计 主要部件

Screw conveyor(Tilt 10o )

Abstract :Screw conveyor is the use of motor driven rotary screw, the passage of materials in order to achieve the purpose of transportation machinery, it can level, tilt or vertical transmission, a simple structure, small cross sectional area, sealing, and easy to operate, easy maintenance, facilitate closure transportation and other advantages. Focus on the issue and drive in a reasonable choice. Drive screw conveyor to the reasonable efficiency, stability, security, the improvement of the role.

The design is a graduation project about the conveyor. At first, it is introduction

about the conveyor. Next, it is the principles about choose component parts of conveyor. After that the belt conveyor abase on the principle is designed. Then, it is checking computations about main component parts. The ordinary conveyor consists of six main parts: Drive Unit, Jib or Delivery End, Tail Ender Return End, Intermediate Structure, Loop Take-Up and Belt. At last, it is explanation about fix and safeguard of the belt conveyor.

Key words:screw conveyor delivery system type design main parts

目 录

摘要„„„„„„„„„„„„„„„„„„„„„„„„„„„„„„„ 1 Abstract „„„„„„„„„„„„„„„„„„„„„„„„„„„„„ 2

第一章 引言„„„„„„„„„„„„„„„„„„„„„„„„„„„„3

1.1 关于本次毕业设计„„„„„„„„„„„„„„„„„„„„„„3

1.2 螺旋输送机产品概述„„„„„„„„„„„„„„„„„„„„„3

1.3 螺旋输送机的应用范围„„„„„„„„„„„„„„„„„„„„4

1.4 螺旋输送机主要热点„„„„„„„„„„„„„„„„„„„„„4

1.5 螺旋输送机工作原理„„„„„„„„„„„„„„„„„„„„„4

1.6 螺旋输送机整机布置形式„„„„„„„„„„„„„„„„„„„5

1.7 螺旋输送机的发展历史及趋势„„„„„„„„„„„„„„„„„5

第二章 螺旋输送机的设计„„„„„„„„„„„„„„„„„„„„„„8

2.1 总体方案设计„„„„„„„„„„„„„„„„„„„„„„„„8

2.2 螺旋输送机总体结构设计„„„„„„„„„„„„„„„„„„„8

2.3 螺旋输送机机体的设计„„„„„„„„„„„„„„„„„„„„9

2.4 驱动端装置的设计„„„„„„„„„„„„„„„„„„„„„ 12

2.5 中间轴承装置„„„„„„„„„„„„„„„„„„„„„„„ 14

2.6 尾端装置的设计„„„„„„„„„„„„„„„„„„„„„„ 16

2.7 驱动装置和尾端装置轴的校核„„„„„„„„„„„„„„„„ 17

第三章 减速器的设计„„„„„„„„„„„„„„„„„„„„„„„ 19

3.1 蜗轮蜗杆减速器的运动和动力参数„„„„„„„„„„„„„„ 19

3.2 减速器的蜗杆设计„„„„„„„„„„„„„„„„„„„„„ 19

3.3 蜗轮轴的设计„„„„„„„„„„„„„„„„„„„„„„„ 23

3.4 蜗杆轴的设计„„„„„„„„„„„„„„„„„„„„„„„ 29

3.5 减速器箱体及附件的设计„„„„„„„„„„„„„„„„„„ 31

第四章 轴承的校核„„„„„„„„„„„„„„„„„„„„„„„„ 33

4.1 蜗杆轴滚动轴承计算„„„„„„„„„„„„„„„„„„„„ 33

第五章 键的校核„„„„„„„„„„„„„„„„„„„„„„„„„ 35

5.1 蜗杆轴端和联轴器的联结的键„„„„„„„„„„„„„„„„ 35

5.2 蜗轮与轴联结的键„„„„„„„„„„„„„„„„„„„„„ 35

5.3 蜗轮轴轴端和联轴器联结的键„„„„„„„„„„„„„„„„ 35

第6章 润滑和密封的设计„„„„„„„„„„„„„„„„„„„„„ 37

6.1 润滑„„„„„„„„„„„„„„„„„„„„„„„„„„„ 37

6.2 密封„„„„„„„„„„„„„„„„„„„„„„„„„„„ 37

6.3 附件的设计„„„„„„„„„„„„„„„„„„„„„„„„ 38 致谢„„„„„„„„„„„„„„„„„„„„„„„„„„„„„„„ 39 参考文献„„„„„„„„„„„„„„„„„„„„„„„„„„„„„ 40 附录1 英文文献翻译 „„„„„„„„„„„„„„„„„„„„„„„41 附录2 英文文献原文 „„„„„„„„„„„„„„„„„„„„„„„45

第一章 引言

1.1 关于本次毕业设计

1.1.1 毕业设计的目的

通过本次毕业设计,我们能够达到一些目的:

1) 培养我们综合运用和巩固扩展所学知识,提高理论联系实际的能力;

2) 培养我们搜集、阅读、分析和运用各种资料,手册等科技文献的能力;

3) 使我们更加熟练的运用AUTOCAD 、Word 等计算机办公软件,提高计算机辅

助设计的能力;

4) 训练和提高机械设计的基本理论和技能;

5) 培养独立思考,独立工作的能力

1.1.2 毕业设计的任务

1) 设计条件

运输物料为干燥煤粉,密度ρ=850Kg /m 3;

运输量为12T /h ;

运输长度为12m 。

2) 设计内容

a) 设计方案的选择与计算

b) 总体结构的设计,成套图纸及说明书

3) 设计关键

a) 仔细分析联系输送机的工作原理

b) 根据输送要求选择合适类型的类型输送机

c) 保证设计的类型输送机能够满足工作要求

1.2 螺旋输送机产品概述

螺旋输送机俗称绞龙,GX 型系列螺旋输送机是一种利用螺旋叶片的旋转,推动物料沿着料槽运送的输送设备,在建筑工地,储粮仓库,制造车间等,并在倾角β< 20 °的情况下,输送粉状,颗粒状和小块物料,使螺旋输送机对提高生产工作效率得到了很大体现,本次设计旨在对螺旋输送机进行创新设计,进一步提高它的实用性。

GX 型螺旋输送机是按照JB/T679-95《螺旋输送机》标准设计制造,GX 型螺旋输送机的螺旋直径有150mm ~600mm ,共有7种规格。在物料温度小于200℃,工作环境温度在-20℃至+50℃之间时,输送长度可达50m , 个别情况可达70m 。螺旋机驱动端轴承、尾部轴承置于料槽壳体外部减少了灰尘对轴承的影响,提高了螺旋机关键件的适用寿命。中间吊挂轴承采用滑动轴承,并设防尘密封装置,密封件用尼龙或塑料,因而密封性能好,耐磨性强,阻力小,寿命长。滑动轴承的轴瓦有粉末冶金、尼龙和巴氏合金,可根据不同需要选用,进出料口的灵活布置使其适应性更强,得到用户认可。

1.3 螺旋输送机的应用范围

GX 型螺旋输送机广泛应用在各种工业部门,如建材、冶金、化工、电力、煤炭、轻工、粮食及食品行业,适用于水平或者20 °倾角的,如水泥、煤粉、粮食、化肥、灰渣、砂子、焦炭等。

GX 型螺旋机对输送物料的要求,物料温度不得超过200℃,螺旋机不宜输送易变质的、粘性大的、易结块的物料。因为这些物料在输送时会粘结在一起,并随之旋转而不向前移动,或者在吊轴承处物料积塞而使机器不能正常工作,因此对于输送距离短,输送量不大,五磨琢性或磨琢性小,五粘结性或粘接性小,不怕破碎而又要求密闭输送的粉状和小块状的物料,采用螺旋输送机是很适宜的。

1.4 螺旋输送机主要特点

1. 结构简单、造价便宜;

2. 维修容易、操作安全;

3. 外形尺寸矮小,布置紧凑,便于多点装料与卸料;

4. 槽体密闭,物料损耗少;

5. 可输送较高温度的物料。

1.5 螺旋输送机工作原理

物料从进料口加入,装螺旋轴转动时,物料受到螺旋叶片法向推力作用。该推力的径向分力和叶片对物料的摩擦力,有可能带着物料绕轴转动,但由于物料本身的重力和料槽对物料的摩擦力的缘故,才不与螺旋叶片一起旋转,而在叶片法向推力的轴向分力的作用下,沿着料槽轴向前移动。

1.6 螺旋输送机整机布置形式

一台螺旋输送机通常由驱动装置、头节、若干标准中间节、选配中间节、尾节、进料口、出料口等组成,除头节和选配中间节外,各节螺旋机及机壳均有互换性。

螺旋机本体由头节、中间节、尾节三种组成。一般情况下,出厂总装时将中间节按长度长短依次排列,最长的中间节靠近头节,相同的中间节挨在一起。

在头节内装有止推轴承承受轴向力,在中间节装有中间吊挂轴承支承螺旋轴。螺旋

(S 制法)(D 制法)面的形式有实体螺旋和带式螺旋两种。各螺旋轴之间采用法兰式联接,

保证了连接轴的互换性,便于维修。

进料口是方形进料口,出料口有方形卸料口、手推式卸料口及齿条式卸料口。布置进出料口应注意保证料口至端部的距离,同时避免料口与吊轴承加油杯,机壳联接法兰,底座等相碰。

驱动装置有由JQ 2型电动机和JZQ 型减速器组成,即双JJ 型。按其装配方式的不同,它分为右装和左装两种。

图1-1 螺旋输送机简图

1.7 螺旋输送机的发展历史及趋势

1.7.1 螺旋输送机的发展历史

螺旋输送机的发展,分为有轴螺旋输送机和无轴螺旋输送机两种型式的发展过程。有轴螺旋输送机由螺杆,U 型料槽,盖板,进,出料口和驱动装置组成,一般还有水平式,倾斜式和垂直式三种:而无轴旋输送机则采用螺杆改为无轴螺旋,并在U 型槽内装置有可换衬体,结构简单,物料由进料口输入经螺旋推动后由出料口输出,整个传输过


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