球磨机毕业设计--2.4x11中心传动球磨机滑履轴承支承设计(含外文(7)

2019-05-24 20:28

洛阳理工学院毕业设计(论文)

谢 辞

为期一个学期的毕业设计基本结束了,回顾整个设计过程,我觉得受益匪浅。毕业设计既是对大学三年学习状况的综合检测,也是毕业之前理论与实践相结合的一个强化过程,对即将走上工作岗位的我们具有很大的帮助。

本次设计主要经过三个阶段。第一阶段是实习即资料收集阶段,第二阶段是整理资料,第三阶段是正式设计阶段。在第一阶段我们去了陕西尧柏水泥厂实习,主要是了解本课题的具体情况,对课题有一个感性的认识,取得本课题的第一手资料。第二阶段重点整理分析所收集的资料,了解国内外本课题的发展状况,确定课题的具体方向。第三阶段进行设计计算,绘制草图和计算机图样,编写说明书。

设计中本人系统的复习了相关的专业知识,学会了如何根据原始数据构思具体的设计方案,并对方案进行理论上的论证,又根据总体方案设计绘制出零件图。

除了学习到本设计内容相关的大量知识外,应特别提出的是,本次设计的完成,极大地锻炼了我的实际动手能力,包括机械设计的基本步骤,方案的确定,工具书的查找,机械制图能力的强化,计算机绘图能力的加强等等。

感谢我的指导教师赵红霞老师,赵老师给了我充分的发挥空间,在我设计中有困难的时候指明了方向,给予了极大的帮助。感谢老师的热情关心,也感谢我的同学们帮助我顺利完成了设计。

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洛阳理工学院毕业设计(论文)

参考文献

[1] 刘建寿 赵红霞. 水泥生产粉碎过程设备. 武汉:武汉理工大学出版社, 2005

[2] 马永林 机械原理. 北京: 高等教育出版社, 1992

[3] 金辉. 工程力学.北京科技大学、东北大学, 北京: 高等教育出版社1979

[4] 赵红霞 任海军 建材设备安装与维修.洛阳:洛阳理工学院,2008. 06 [5] 陈明绍 吴光兴等编著.除尘技术的基本理论与应用.北京:中国建筑工业出版社,1981年

[6] 张森林 建材机械与设备. 武汉:武汉工业大学出版社,1991 [7] 金国淼等编著.除尘设备.北京:化学工业出版社,2002年 [8] 向晓东.现代除尘理论与技术.北京:冶金工业出版社,2002年 [9] 褚瑞卿. 建材通用机械与设备. 武汉:武汉工业大学出版社,1995 [10] 1990

[11] [12]

张建中.课程设计.北京:高等教育出版社2008.12

李洪波 梁俊有. CAD工程设计.呼和浩特.远方出版社向晓东.现代许林发. 建筑材料机械设计(一). 武汉:武汉工业大学出版社,

除尘理论与技术.北京:冶金工业出版社,2002年

[13] [14] 1990

[15] 2005.10

[16]

肖 珑《机械制造基础》.河南科学技术出版社2008.10

陈桂芳.机械制图与计算机绘图.西安:西安电子科技大学出版社陈于萍.互换性与测量技术基础. 北京:机械工业大学出版社,2005 许林发. 建筑材料机械设计(二). 武汉:武汉工业大学出版社,

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洛阳理工学院毕业设计(论文)

附 录

序号 1 2 3 4 5 6 7 8 图名 磨机总装配图 滑履支承部装图 滑履轴承套 底座 凸球面体 凹球面体 底板 托瓦 图幅 A1 A0 A1 A3 A3 A3 A3 A3 29

洛阳理工学院毕业设计(论文)

外文资料翻译

1 Lathes

Lathes are machine tools designed primarily to do turning, facing and boring, Very little turning is done on other types of machine tools, and none can do it with equal facility. Because lathes also can do drilling and reaming, their versatility permits several operations to be done with a single setup of the work piece. Consequently, more lathes of various types are used in manufacturing than any other machine tool.

The essential components of a lathe are the bed, headstock assembly, tailstock assembly, and the leads crew and feed rod.

The bed is the backbone of a lathe. It usually is made of well normalized or aged gray or nodular cast iron and provides s heavy, rigid frame on which all the other basic components are mounted. Two sets of parallel, longitudinal ways, inner and outer, are contained on the bed, usually on the upper side. Some makers use an inverted V-shape for all four ways, whereas others utilize one inverted V and one flat way in one or both sets, They are precision-machined to assure accuracy of alignment. On most modern lathes the way are surface-hardened to resist wear and abrasion, but precaution should be taken in operating a lathe to assure that the ways are not damaged. Any inaccuracy in them usually means that the accuracy of the entire lathe is destroyed.

The headstock is mounted in a foxed position on the inner ways, usually at the left end of the bed. It provides a powered means of rotating the word at various speeds. Essentially, it consists of a hollow spindle, mounted in accurate bearings, and a set of transmission gears-similar to a truck transmission—through which the spindle can be rotated at a number of speeds. Most lathes provide from 8 to 18 speeds, usually in a geometric ratio, and on modern lathes all the speeds can be obtained merely by moving from two to four levers. An increasing trend is to provide a continuously variable speed

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洛阳理工学院毕业设计(论文)

range through electrical or mechanical drives.

Because the accuracy of a lathe is greatly dependent on the spindle, it is of heavy construction and mounted in heavy bearings, usually preloaded tapered roller or ball types. The spindle has a hole extending through its length, through which long bar stock can be fed. The size of maximum size of bar stock that can be machined when the material must be fed through spindle.

The tailstock assembly consists, essentially, of three parts. A lower casting fits on the inner ways of the bed and can slide longitudinally thereon, with a means for clamping the entire assembly in any desired location, An upper casting fits on the lower one and can be moved transversely upon it, on some type of keyed ways, to permit aligning the assembly is the tailstock quill. This is a hollow steel cylinder, usually about 51 to 76mm(2to 3 inches) in diameter, that can be moved several inches longitudinally in and out of the upper casting by means of a hand wheel and screw.

The size of a lathe is designated by two dimensions. The first is known as the swing. This is the maximum diameter of work that can be rotated on a lathe. It is approximately twice the distance between the line connecting the lathe centers and the nearest point on the ways, The second size dimension is the maximum distance between centers. The swing thus indicates the maximum work piece diameter that can be turned in the lathe, while the distance between centers indicates the maximum length of work piece that can be mounted between centers.

Engine lathes are the type most frequently used in manufacturing. They are heavy-duty machine tools with all the components described previously and have power drive for all tool movements except on the compound rest. They commonly range in size from 305 to 610 mm(12 to 24 inches)swing and from 610 to 1219 mm(24 to 48 inches) center distances, but swings up to 1270 mm(50 inches) and center distances up to 3658mm(12 feet) are not uncommon. Most have chip pans and a built-in coolant circulating system. Smaller engine lathes-with swings usually not over 330 mm (13 inches) –also are available in

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