CB-B40型齿轮泵主动轴设计(附答辩记录).doc

CB-B40型齿轮泵主动轴设计(附答辩记录)

题目是CB-B40型齿轮泵主动轴设计，其内容包括毕业设计的意义，泵的规格型号，工作原理、主动轴的材料、受力分析、加工工艺、工艺编制可行性分析，夹具分析五方面内容。机械厂接一产品CB-B40型齿轮泵主动轴定单，产量10000根，需制订加工工艺及工装，以保证产品质量 ...

之一。
我们论文题目是CB-B40型齿轮泵主动轴设计，其内容包括毕业设计的意义，泵的规格型号，工作原理、主动轴的材料、受力分析、加工工艺、工艺编制可行性分析，夹具分析五方面内容。
通过对原始资料装配图中把零件拆画出来，再通过一系列的受力分析、强度计算，然后对轴的选材、加工工艺和夹具进行设计。
通过这次毕业设计我们要把在学校学过的所有相关知识融会贯通起来，在设计过程中学会独立的思考和分析设计中所遇到的问题。

关键词：轴，夹具，工作原理

设计要求
1．    题目来源：机械厂接一产品CB-B40型齿轮泵主动轴定单，产量根，需制订加工工艺及工装，以保证产品质量
2．    原始资料：
1）     CB-B40型齿轮泵装配图一张
2）     机械厂生产车间设备清单。
3．    其他要求： 并编制进行可行性分析。综上，设计合适的夹具对轴进行加工，以满足此轴在该泵中所需的各项技术指标。 型齿轮泵技术规格    2
2.2 齿轮泵的工作原理    2
3 轴的选材、受力分析    4
3.1 轴的选材    4
3.2 轴的受力分析    4
4 轴的加工工艺及编制可行型分析    8
4.1 轴的加工工艺    8
4.2 轴加工工艺的可行性分析    12
5 夹具设计    14
5.1 明确设计任务书    14
5.2 定位方案设计    14
5.3 分析计算定位误差    15
5.4 夹紧方案设计    15 />
致  谢    18
参考文献    19

参考文献
[1] 陈立德.机械设计基础.第一版.北京：高等教育出版社，2000
[2] 陈立德,牛玉丽.机械设计基础课程设计指导书.第一版.北京：高等教育出版社.2000
[3] 刘力,王冰.机械制图.第一版.北京：高等教育出版社.2000
[4] 王英杰.金属工艺学.第一版.北京：高等教育出版社.2001
[5] 沈养中.工程力学.第二版.北京：高等教育出版社.2003
[6] 韩洪涛,薛培军,耿振海.机械制造技术.第一版.北京：化学工业出版社.2003
[7] 薛源顺.机床夹具设计.第一版.北京：机械工业出版社.1996
[8] 陈宏钧.实用机械加工工艺手册.第一版.北京：机械工业出版社1996
[9] 蔡耀辉,贾玉兰.实用机械设计手册（下册）.第二版.北京：机械工业出版社 1994 但是由于齿轮生产制造过程的复杂性，以及生产线所处环境的不确定性，要找出影响齿轮制造过程效率的瓶颈环节并加以改进是非常困难的。经验表明，计算机仿真方法是辅助改进和优化生产工艺的有效工具。本文选择某企业齿轮制造过程的生产工艺为仿真为研究背景，探讨了齿轮制造过程仿真建模方法。并以某齿轮轴车间为例进行了仿真建模，通过仿真软件的运行及其仿真结果的分析，提出了可行的优化措施，为企业齿轮生产工艺最终优化方案的确定提供决策参考。
论文首先，回顾了齿轮生产工艺仿真的研究动态，在此基础上阐述了齿轮制造发展的趋势。同时对系统仿真的基础知识进行了深入分析，说明了系统仿真技术在齿轮制造过程中的重要作用；<br />
其次，介绍了生产瓶颈的理论基础，并结合仿真软件的特点，归纳总结出了齿轮生产工艺建模仿真的总体思路，提出了仿真建模的步骤，并以仿真软件eM-plant为工具做了具体的研究和阐述；
最后，以某齿轮制造企业齿轮轴生产车间为为研究对象，利用仿真软件eM-plant对现实的生产工艺进行了仿真建模、参数设定、模型验证、仿真运行与结果处理。在设定优化目标的要求下，通过改变工艺路线，增加设备台数，对比分析优化前后的仿真结果，为企业提高生产效率、降低生产成本提供决策参考。

关键词：齿轮制造，eM-plant，仿真，优化

ABSTRACT
Gear is all an integral part of the machinery parts， the level of the manufacturing process efficiency tremendous impact on enterprises. However， due to gear production of the complexity of the manufacturing process and production line environment in which the uncertainty， to find out the impact on the efficiency of the gear manufacturing process bottlenecks and to improve it is very difficult. Experience has shown that computer simulation is assisted to improve and optimize the production process of effective tools. In this paper， choose an enterprise gear manufacturing process for the production process simulation to study the background on the gear manufacturing process simulation modeling methods. And a gear shaft workshop as an example the simulation modeling， simulation software and the operating results of the simulation analysis， a viable optimization measures for enterprises gear production process ultimately determine the optimal scheme to provide decision-making.
First of all papers， reviewed the gear production process simulation of dynamic， on the basis of this gear manufacturers on the development trend. At the same time on the basis of knowledge of system simulation conducted in-depth analysis shows that simulation technology in the manufacturing process gear to the important role；
Secondly， on the basis of the theory of production bottlenecks， combined with the characteristics of simulation software， summarized a gear production process modeling and simulation of the general idea， put forward the steps of the simulation modeling and simulation software to eM-plant as a tool to do the And sets out specific research；
Finally， a gear to gear shaft manufacturers for production workshop for the study， use of simulation software eM-plant on the reality of the production process for the Modeling and Simulation， parameter settings， model verification， simulation results of operation and handling. In setting the goal of optimizing the request of the line by changing technology， equipment Taiwan increased the number of comparative analysis before and after the optimization of the simulation results， for enterprises to improve production efficiency， reduce production costs to provide decision-making.

Key words：Gear manufacturers， eM-plant， simulation， optimization

目 nbsp;  录     字
中文摘要    I
英文摘要    II
1 绪  论    1
1.1    本论文研究背景及意义    1
1.2    国内外相关研究现状及发展趋势    2
1.2.1    国内研究现状    2
1.2.2    国外研究现状    3
1.3    本文研究的内容    4
2 数字化仿真理论基础    5
2.1    数字化仿真    5
2.1.1    系统仿真的分类    6>
2.1.2    数字化仿真的相关概念    6
2.2    离散事件系统仿真    7
2.2.1    离散事件系统的概述    7
2.2.2    离散事件系统仿真的原理及策略    8
2.2.3    离散事件系统仿真模型的组成  nbsp; 10
2.3    面向对象仿真建模及仿真软件介绍    11
2.3.1    面向对象仿真建模概述    11
2.3.2    面向对象仿真模型的构建    11
2.3.3    eM-plant仿真软件    13
3 瓶颈分析方法研究  &nbsp; 15
3.1    瓶颈的概念    15
3.2    确定生产工艺的方法    15
3.3    本论文所用的生产工艺瓶颈分析方法    17
4 某企业齿轮制造过程的生产工艺瓶颈分析与优化    18
4.1    某企业齿轮的生产描述    18
4.1.1    生产设备及加工流程    18
4.1.2    车间问题分析    18
4.2    仿真模型的建立    19
4.2.1    仿真建模的目标    19 建模的数据搜集方法    19
4.2.3    仿真模型的思路    20
4.2.4    仿真模型的数学模型    20
4.2.5仿真建模的构建    21
5仿真结果的输出    25
5.1优化前生产工艺瓶颈分析    25
5.1.1基于关键工序能力的分析&nbsp;   25
5.1.2    基于Bottleneck的瓶颈分析    30
5.2优化后生产工艺瓶颈分析    35
5.2.1基于关键工序能力的分析    36
5.2.2基于Bottleneck的瓶颈分析.38
    5.3方案评价..42 两种瓶颈分析结果的对比及应用    48
6 总  结    50
致    谢    52 察自然法不同阶段的思想内容，发现其内涵与外延时伸时缩，难以明确的定义，其发展至今所经历的几种不同形态都赋予了自然法不同的内涵，即便是同一时期的思想家对自然法的定义有时也是大相径庭。但不管怎么变动，追求正义与理性、理想与道德、自由与平等的核心价值观念上，始终具有连续性。虽然由于时代所限，自然法学家们对正义、道德、自由的内涵所作的解释不尽相同，但自然法的理念、自然法的基本主旨以及自然法本身所蕴含的理性主义精神仍然是一脉相承的。
关键词：自然法  理性  正义

Abstract
The west concept of natural law gets through durable not decline of two thousand development many years, and be always west politics law thought core, the origination is almost changed into the unrestrained ancient Greece city-state period as a result of changing hereafter, have experienced several stage such as natural naturalism law period , natural theology doctrine law period , natural classicism law period , new natural law period, become the most important human being law in history thought. Content inspecting the thought being unlike a stage, connotation and extension discovering natural law hold up and shrink intermittently , the boundary is blurred , are difficult to definitely definition, the person develops so far what be experienced several kinds different forms having given natural follow different connotation to, even if the thinker who is scheduled time with a period of time is also to be very unlike to natural law definition sometimes. Go ahead but freely with reason , ideal and morality, with equal core values disregarding why changes , runs after justice , have a continuity all the time. Though because of what times is limited,that natural jurists follow rationalism spirit contained by self to the idea , fundamental natural law gist and natural world being unable to make an explanation identical, but natural law completely assumed by justice , morality , free connotation still is to be a true disciple of. 到了重要作用。但加工贸易发展存在着一系列的矛盾和问题。本文写作的宗旨主要就是为了在对加工贸易进行研究和探讨的基础上，找出加工贸易问题的“症结”所在，以便采取切实可行的政策措施，充分发挥加工贸易在我国外贸以及整个国民经济中的重要作用。
我国的加工贸易发展水平总体上比较低，一些项目存在着低水平重复建设的情况。使用国产料件较少，主要依赖进口料件的局面未得到根本改变；我国加工贸易现有的管理方式不能完全适应加工贸易的迅猛发展，管理水平较低；一些不法厂商利用加工贸易大肆进行走私、逃套汇和骗退税，造成国家税收大量流失，对我国外贸和国民经济健康发展产生了不良影响。 />
总之，在当前特定的国际、国内环境下，加工贸易的发展既存在机遇又面临挑战。特别是随着经济全球化，对外贸易备受瞩目，因此对加工贸易进行深入研究与分析也显得尤为重要。

关键词：加工贸易；技术；对外贸易；可持续发展

Abstract
Since the reform to open ,the processing trade is continuously developing strongly in our country, and gradually became a predominance method of our foreign trade, which is an important fuction to rise the economy.The processing trade development exits many problems.The purpose to write this text is finding out the " key sticking point" place of the processing trade problem after the deep research of the processing trade. After that we can found out the in order to adopt slice solid viable policy measure, well develop processing trade outside our country trade and whole national economies of important function.
The level of our processing trade development is lower.Some item develops in low level.The usage of the national product anticipates less, the situation of counting on imports anticipate is not changed at all.The current management to the processing trade in our country can't adapt to the fast fierce development of the processing trade completely, which level is lower.Some illegal businessmen make use of the processing trade to smuggle, escape the arbitrage with the rebate,which result in that a large quantity national tax run off.These produce the bad influence to our country foreign trade and the national economy development.
In fine, under this current particular nations, local environment, the development of the processing trade exit both the opportunity and the challenge.With the economic getting wider, the foreign trade has to be paid more attention.So proceeding thorough the research of the processing trade seems to be particularly important now.

Key words：The processing trade；Technique；Foreign trade；Sustainable development
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     然而中国钢铁工业是2008年以来全球金融风暴中受影响最重的行业之一。2008年10月以来钢铁业面临企业大面积减产、全行业亏损、库存大量增加、成本与价格倒挂等困难，大中型钢铁企业亏损面已达59.15%,钢铁产业稳定发展面临着前所未有的挑战，应该看到，钢铁行业在经历了长期粗放型扩张后，必然要进行一次大的调整，中国钢铁产业如何通过对自身的调整应对本次金融危机的冲击已成为迫在眉睫的问题。本文通过对中国钢铁产业自身现状及其各影响因素的分析，指出钢铁产业目前存在的诸多问题，针对这些问题提出了改革的政策建议以及应对措施，并在此基础上预测中国钢铁产业未来的格局与走势，以期为钢铁产业的投资提供一些参考。 nbsp;  Abstract
Iron and steel industry is very important position and role. It should be said that the steel industry is an important basic industry of the national economy, industrial chain length, degree correlation, correlation is high. Some data from the iron and steel industry, the country's industrial added value accounted for about 4% of GDP, its total assets, operating income, total profits in general has a market share of the overall national industrial 8% to 9%. Therefore, the status and role of its role in the national economy is very important.
  &nbsp;  However, the Chinese iron and steel industry since the 2008 global financial crisis in the most affected industries. Since October 2008 the iron and steel industry faces large-scale production enterprises, industry-wide losses, a significant increase in inventory, cost and prices, such as difficulties in inversion, large and medium-sized steel enterprises has reached 59.15 percent loss, and stable development of the steel industry is faced with unprecedented challenges, it should be see that, iron and steel industry has undergone extensive expansion of long-term, is bound to be a big adjustment, the Chinese steel industry through the adjustment of their own to deal with the financial crisis has become a pressing issue. Based on the status of China's steel industry and its impact on their own analysis of the factors that currently exist in the steel industry many problems to deal with these problems, the reform bill, the measures to deal with, and based on this forecast the future pattern of China's iron and steel and the trend for investment in the steel industry to provide some reference. 房条件的改善和生活质量的提高而逐渐发展起来的一种介于传统中央空调和家用空调器两者之间的空调系统，具有设计安装方便、布置灵活多变、占建筑空间小、使用方便、可靠性高、且系统简单、结构紧凑、节能、舒适等优点,各房间独立调节、运行,能满足不同房间不同空调负荷的要求。
本设计采用三洋ECO i多联机空调系统加独立新风系统。室外机和新风机组放在顶楼，室内机安装在各个空调房间，室外机与室内机通过制冷剂管道连接，室外机组可以实现接近无级的变频调节，从而达到很好的节能效果，并可以根据室内机负荷准确调节制冷剂流量，实现控制房间的温度和湿度波动平稳，更能满足人们的舒适性要求。室内机采用了吊顶嵌入和暗藏风管两种的方