没有合适的资源?快使用搜索试试~ 我知道了~
热压成型机液压系统设计-液压与机械设计制造及自动化专业毕业设计-毕业设计论文.doc
0 下载量 78 浏览量
2023-06-30
03:10:23
上传
评论
收藏 1.12MB DOC 举报
温馨提示
试读
41页
热压成型机液压系统设计-液压与机械设计制造及自动化专业毕业设计-毕业设计论文.doc
资源推荐
资源详情
资源评论
I
摘 要
液压气动技术是设备中发展速度较快的技术之一,特别是近年来与微电子、
计算机技术相结合,使液压技术进入了一个新的发展阶段。目前,已广泛应用在
工业各领域。由于近年来微电子、计算机技术的迅猛发展,液压气动技术不仅在
作为以一种基本的传动形式上占有很重要的地位,而且以优良的静态、动态性
能成为一种重要的控制技术。热压机是人造板生产中最重要的设备之一。热压机
的生产能力决定了人造板生产线的质量,而热压机的技术水平也在很大程度上决
定了人造板的质量。发展人造板产业是提高木材利用率的有效途径,热压机是人
造板工艺中极其重要的设备,而热压机液压系统是控制热压工艺的关键。
在本设计的液压系统中,采用高转速柱塞泵和低转速齿轮泵双泵供油,高、
低压泵分别工作,既能实现液压缸的快速动作,又可以缓慢加压。同时,由于系
统采用快速卸荷手柄,能够实现人工快速卸荷。另外,系统中采用液压集成块技
术,使得系统结构紧凑,元件密度高,占据面积小,运用灵活方便,又易于实现标
准化。
本设计在原有 QD 实验热压机液压系统的基础上作了进一步的改进,使整个系
统结构更加紧凑,缩小了系统的占用空间,使热压机具有更高的稳定性和较高的
工作效率,在人造板热压成型生产中性能更加完备。
关键词:热压机;液压系统;集成阀块;双泵供油;快速卸荷。
II
Abstract
Hydraulic pneumatic technology is the faster one in the development of
technology,Especially in recent years,the conmbination with microelectronics and
computer technology make hydraulic technology have entered a new stage of
development。At present,it Has been widely used in the industrial fields。Because of
the rapid development of computer technology and microelectronics in recent years,
Hydraulic pneumatic technology not only play an important role as as a kind of basic
transmission form , but also become a kind of important control technology with
excellent static and dynamic performance。Hot pressing machine is one of the most
important of equipment in the man-made board production manufacturing 。 Hot
pressing machine production capacity decides the quality of the man-made board in
the production line , And the technology level of hot pressing machine decides the
quality of the man-made board to a great extent。The Development of panel industry
is an effective way to improve the utilization ratio of the wood,Hot pressing machine
is a very important equipment in the process of man-made board,and the hydraulic
system of the hot pressing machine is the key to control hot-pressing process。
In this design of the hydraulic system,using high speed piston pump and low
speed gear pump to supply oil。High and low pressure pump work respectively,can
not only realize hydraulic cylinder of rapid movement, but also can increase the
pressure slowly。At the same time,because the system adopts quick unloading handle,
can realize the artificial fast unloading 。 In addition , the technology of hydraulic
manifold blocks is used in this system , which allow the system structure to be
compact,the element density to be high,the occupy of area to be small and can be
used flexiblly and conveniently,meanwhile,it's easy to realize standardized。
This design is on the basis of the original experiment QD hot pressing machine
hydraulic system ,and has many further improvements,making the whole system
structure be more compact,narrowing the space that system takes up,letting the hot
pressing machines have higher stability and higher efficiency,and the performance is
more complete in the production of man-made heat moulding board。
Keywords: Hot pressing machine, hydraulic system, oil cylinders, valves piece
I
目 录
第一章 绪论........................................................................................................................1
1.1 国内人造板的总体概况...........................................................................................1
1.2 热压机的发展...........................................................................................................1
1.2.1 热压机的起源—多层压机.............................................................................1
1.2.2 单层热压机.....................................................................................................2
1.3 热压机的发展现状...................................................................................................3
1.3.1 国外热压机的发展现状.................................................................................3
1.3.2 国内热压机的发展现状.................................................................................3
第二章 热压机总体方案的确定和设计............................................................................4
2.1 热压机系统内部各部件的功用...............................................................................4
2.1.1 液压泵的功用.................................................................................................4
2.1.2 液压缸的功用.................................................................................................5
2.1.3 液压集成块的功用.........................................................................................5
2.1.4 油箱的功用.....................................................................................................5
第三章 液压缸的设计........................................................................................................6
3.1 液压缸类型与安装方式的确定...............................................................................6
3.2 液压缸的结构设计...................................................................................................6
3.2.1 缸体与缸的连接.............................................................................................6
3.2.2 活塞与活塞杆的连接.....................................................................................6
3.2.1 液压缸缸体的安全系数.................................................................................6
3.3 液压缸的主要技术性能参数的计算.......................................................................6
3.3.1 压力设定.........................................................................................................7
3.3.2 流量.................................................................................................................7
3.3.3 运动速度.........................................................................................................7
3.3.4 推力和拉力.....................................................................................................8
3.3.5 行程.................................................................................................................8
3.3.6 液压缸的基本参数.........................................................................................8
3.4 主油缸的设计计算...................................................................................................9
3.4.1 缸体内径 D 的计算........................................................................................9
II
3.4.2 缸体壁厚
d
的计算.........................................................................................9
3.4.3 缸体外径 D
1
的计算......................................................................................10
3.4.4 缸体壁厚的验算...........................................................................................10
3.4.5 缸体的材料和技术要求...............................................................................10
3.5 柱塞杆径的计算与校核.........................................................................................10
3.5.1 柱塞杆径的计算...........................................................................................10
3.5.2 柱塞杆直径的校核.......................................................................................11
3.5.3 柱塞杆的材料和技术要求...........................................................................11
3.6 缸盖的设计计算.....................................................................................................11
3.6.1 缸盖的结构...................................................................................................12
3.6.2 缸底厚度的计算...........................................................................................12
3.6.3 缸盖的材料和技术要求...............................................................................13
3.7 螺栓的计算.............................................................................................................13
3.7.1 缸体连接所用螺栓个数 K1..........................................................................13
3.8 导向套的设计计算................................................................................................13
3.8.1 导向套的结构...............................................................................................14
3.8.2 最小导向长度的确定...................................................................................14
3.8.3 导向套的材料及技术要求...........................................................................14
3.9 密封件和防尘圈的选用.........................................................................................14
3.8.1 柱塞杆的密封...............................................................................................15
3.9.2 其他密封.......................................................................................................15
3.9.3 柱塞杆的防尘装置.......................................................................................15
第四章 液压泵的选择......................................................................................................16
4.1 流量计算.................................................................................................................16
4.2 压力计算.................................................................................................................16
4.3 泵的校核.................................................................................................................17
4.3.1 泵的压力计算...............................................................................................18
第五章 液压集成块的设计..............................................................................................20
5.1 材料的选择.............................................................................................................21
5.2 阀型号的选择.........................................................................................................22
5.3 阀块外形尺寸和孔位置的确定.............................................................................23
第六章 油箱的设计..........................................................................................................28
6.1 油箱在液压系统中的主要功能.............................................................................28
6.2 油箱的设计要点.....................................................................................................28
III
6.3 油箱容量的计算.....................................................................................................29
6.3.1 发热计算.......................................................................................................29
6.3.2 散热计算 ........................................................................................................................30
6.3.3 油箱容积计算...............................................................................................30
6.4 油箱中油液的冷却与加热.....................................................................................29
6.4.1 油液的冷却...................................................................................................31
6.4.2 油液的加热...................................................................................................31
6.5 油箱主要附件的选配.............................................................................................32
6.5.1 空气滤清器...................................................................................................32
6.5.2 过滤器...........................................................................................................32
6.5.3 吸油口过滤器...............................................................................................32
6.5.5 其他附件.......................................................................................................33
6.5.6 油盘...............................................................................................................33
致谢......................................................................................................................................34
参考文献..............................................................................................................................35
剩余40页未读,继续阅读
资源评论
黑色的迷迭香
- 粉丝: 716
- 资源: 4万+
上传资源 快速赚钱
- 我的内容管理 展开
- 我的资源 快来上传第一个资源
- 我的收益 登录查看自己的收益
- 我的积分 登录查看自己的积分
- 我的C币 登录后查看C币余额
- 我的收藏
- 我的下载
- 下载帮助
最新资源
- Music-Player +PlayerActivity+ rockplayer+ SeeJoPlayer 播放器JAVA源码
- vscode-1.46.0.tar源码文件
- 最近很火植物大战僵尸杂交版2.08苹果+安卓+PC+防闪退工具V2+修改工具+高清工具+通关存档整合包更新
- 超级好用的截图工具PixPin,可录制Gif图
- Screenshot_2024-05-21-17-06-42-64_2332cb9b27b851b548ba47a91682926c.jpg
- 毕业设计参考 - 基于树莓派、OpenCV及Python的人脸识别
- node-v18.20.2-linux-arm64
- 222222222222
- 16张相机标定图片,可复现本文畸变矫正
- dbeaver-ce-23.3.1-x86_64-setup.zip
资源上传下载、课程学习等过程中有任何疑问或建议,欢迎提出宝贵意见哦~我们会及时处理!
点击此处反馈
安全验证
文档复制为VIP权益,开通VIP直接复制
信息提交成功