螺旋千斤顶的设计及运动仿真开题报告

编号无锡太湖学院毕业设计（论文）相关资料题目： 螺旋千斤顶的设计及运动仿真 信 机 系 机械工程及自动化专业学 号： 0921032学生姓名： 蒋申宁 指导教师： 彭勇 （职称：副教授 ） （职称： ）2013年5月25日目 录一、毕业设计（论文）开题报告二、毕业设计（论文）外文资料翻译及原文三、学生“毕业论文（论文）计划、进度、检查及落实表”四、实习鉴定表无锡太湖学院毕业设计（论文）开题报告题目： 螺旋千斤顶的设计及运动仿真 信机 系 机械工程及自动化 专业学 号： 0921032 学生姓名： 蒋申宁 指导教师： 彭勇 （职称：副教授） （职称： ）2012年 11月25日课题来源 自拟题目科学依据（1）课题科学意义和应用前景在我们的日常生活中和实际生产的过程中，经常会遇上汽车抛锚、更换轮胎或者维修，将一些重物如机床，桥梁的桥墩，大型设备吊装。在没有起重机的情况下，要移动或者抬起这些，仅仅靠人力是非常苦难的，在这个时候就要用到千斤顶，发挥它四两拨千斤的作用。生活中有许多方面都离不开千斤顶，应用最多最广的如车辆维修，桥梁安装，矿山，建筑工程，重物的起重等方面。所以，千斤顶技术的发展，会影响到这些行业的发展。（2） 千斤顶在国内外的研究现状和发展趋势国外：早在20世纪40年代，卧式千斤顶就开始在汽车维修的行业中得到使用，当由于当时技术和使用的原因，千斤顶设计时尺寸和体积较大，承载量较低，使用不便。后来随着社会需求量的加大以及千斤顶本身技术的发展，在90年代初，国外大部分用户用卧式千斤顶顶取代了立式千斤顶。在90年代后期一些新型的千斤顶也相继出现如充气式千斤顶和便携式千斤顶。充气千斤顶由保加利亚一汽车运输研究所发明的，它由弹性的而又非常坚固的橡胶制成的。使用时，用软管将千斤顶连在汽车的排气管上，经过1520秒，汽车将千斤顶鼓起，成为圆柱体。这种千斤顶可以把115t重的汽车顶起70cm。Power-Riser型便携式液压千斤顶则可以用于所有类型的铁道车辆，包括装运三层汽车的货车、联运车以及高车顶车辆。国内：我国千斤顶技术发展较晚，由于缺少与国外先进技术的交流，所以直到1979年才接触到类似国外卧式千斤顶这样的产品。但是经过我们重新对产品进行设计改造，在外型美观、使用方便、承载量大、寿命长等方面都已经超过国外同类的产品并且迅速打入欧美市场。随着我国汽车工业的快速发展，汽车对千斤顶的要求也越来越高；同时随着市场竞争的加剧，用户要求的不断变化，将迫使千斤顶的设计质量要不断提高，以适应用户的需求。用户喜欢的、市场需要的千斤顶将不仅要求重量轻，携带方便，外形美观，使用可靠，还会对千斤顶的进一步自动化，甚至智能化都有所要求。目前我国的汽配企业不仅需要供应国内市场的需要，每年还出口约500万台汽车用千斤顶到世界各地。虽然如此，仔细分析千斤顶设计制造的技术水平，采用先进技术不足，仍存在较大的改进空间。研究内容了解螺旋千斤顶的研究现状，以及手驱动螺旋千斤顶在国内外的使用情况，以及存在的一些问题。了解螺旋千斤顶的组成以及手驱动螺旋千斤顶的详细构造、各个零件的尺寸功能以及组装方法。螺旋千斤顶的结构设计与计算。拟采取的研究方法、技术路线、实验方案及可行性分析（1）研究方法借阅相关书籍杂志，充分利用图书馆及网络资源。（2）技术路线 收集资料，设计尺寸制定出详细的设计的螺旋千斤顶设计目标。（3）实验方案 明确设计要求，认真调查研究，收集设计资料，计算螺旋千斤顶以及各个零件的详细数据（4）可行性分析 通过Auto CAD软件进行手驱动螺旋千斤顶的装配图以及零件图的绘制。过程中结合自己掌握的知识和在老师的指导下完成研究内容。研究计划及预期成果研究计划：2012年11月12日-2012年12月2日：按照任务书要求查阅论文相关参考资料，填写毕业设计开题报告书。2012年12月3日-2012年1月20日：填写毕业实习报告。2013年1月21日-2013年3月1日：完成千斤顶的整体结构设计。2013年3月4日-2013年3月22日：螺旋千斤顶的各部分设计计算。2013年3月25日-2013年4月5日：完成二维零件图装配图。2013年4月8日-2013年4月19日：完成千斤顶设计说明书。2013年4月22日-2013年5月25日： 递交毕业设计资料，准备答辩材料，并进行答辩。预期成果：通过对螺旋千斤顶的设计，熟悉千斤顶的工作原理和使用方法，了解千斤顶各零部件的结构特点，提高自己独立开发与设计的能力，学习设计的基本思路。特色或创新之处 使用CAD绘制零件装配图，能够直观简单的表达出千斤顶的结构。 采用二维三维图结合，使结构更加清晰，简洁明了，行之有效。已具备的条件和尚需解决的问题 实验方案思路已经非常明确，已经初步具备使用CAD构图能力。 使用CAD作图的能力尚需加强。指导教师意见 指导教师签名：年 月 日教研室（学科组、研究所）意见 教研室主任签名： 年 月 日系意见 主管领导签名： 年 月 日英文原文Chinas machinery manufacturing management information of the characteristics and development trends1. PrefaceThe manufacturing sector, especially machinery manufacturing industry is a pillar industry of national economy, the modern manufacturing industry is changing peoples modes of production, lifestyle, mode of operation and management as well as the organizational structure of society and culture. Chinas huge market potential and rich labor resources, the worlds manufacturing industry has shifted to China, China is becoming a world manufacturing power. Chinas household electrical appliances, such as in the production of a number of products has been ranking first in the world. However, in their own intellectual property rights of innovative design, advanced manufacturing technology and equipment and modern management, there are still a big gap, so we do not create power. This article will machinery manufacturing enterprises in the current management problems, how to use information technology to improve management, management information of the characteristics and trends of technology development for a number of studies for the development of machinery manufacturing enterprises program reference information. 2. Machinery manufacturing enterprises in the current management problemsChinas machinery manufacturing industry through decades of effort have been of considerable size, the accumulation of a large number of skills and experience. However, with the formation of world economic integration, since Chinas huge market potential and rich labor resources, foreign technology, capital, large influx of Chinese products, Chinese enterprises are facing an unprecedented situation of fierce competition at home and abroad. Competitive products require replacement fast, high quality, low price, prompt delivery and good services. Competition in these markets weapons with the model of corporate governance, management methods, management tools, organizational structure, business processes are closely related. However, the Chinese enterprises and peoples ideology 30-40 years due to the impact of the planned economy, the competitiveness of the existence of weapons with a big gap compared with developed countries. (1) control the mode of production planning behind The implementation of ERP has not been the machinery manufacturing enterprises is almost 100% use of sets of programs. That is the longest production cycle of products form the basis of product as a variety of materials and production lead time procurement lead time. Exaggerated is the lead-time inventory and reserve products high liquidity of the root causes of the use of the Great. Production planning and procurement plans in line, sets the level of bad parts can not be delivered on time. Or to protect its delivery of high reserves. Modern management methods from MRP MRP, JIT JIT, supplier of pipe Treasury VMI, a far cry from the synchronization of production. (2) Enterprise poor response Todays market is constantly changing, the demand for diversification. Order assembly MTO, in accordance with orders for manufacture of MTO, in accordance with orders for the design of MTD, Mass Customization MC. Variety of different specifications, production, procurement is very complex. From the customer - Sales - Design - Production - Purchasing - Financial - costs, the need for a complete supply chain management, in order to quickly respond to dynamic customer demand, to adapt to the ever-changing market and customer customization requirements. (3) inaccurate cost, poor cost control Artificial cost accounting in general only the cost of computing products, the cost of parts and components can not be calculated. Very rough cost-sharing, the cost of data collection is a large number of artificialand poor accuracy of the data, making cost inaccurate. Generally do not carry out the standard cost calculation, cost analysis rarely conducted, so poor cost control. (4) information dispersed, not timely, inaccurate, not share Manufacturing production, supply, marketing, human, financial, and material is an organic whole, and between them there is a large amount of information exchange. Decentralized management of information, however artificial, based on the lack of a complete data, information dispersion, not timely, inaccurate, not share, significantly affect the scientific nature of management decision-making. (5)-style bureaucratic organizations rather than the flat-oriented business processes of organizations, the general business processes unreasonable, business process management and control of non-standard, arbitrary. (6) lack of standardization, standardization, institutionalization, programmable management, management strengths and weaknesses vary from person to person. Despite the adoption of ISO9000 procedures to develop a series of documents, the effect of the implementation of enterprises and managers may vary. (7) management tools behind, the majority of enterprises still in the computer manual or decentralized management of individual management stage. Some enterprises have set up computer networks, the whole plant, but the application is still fragmented, there is no information-sharing and the optimal distribution of resources. (8) modern management ideas, new methods, and poor application of new technologies. For example: Agile Manufacturing AM, virtual manufacturing VM, JIT JIT, Customer Relationship Management CRM, supply chain management SCM, Business Intelligence BI, e-business EC, such as enterprise resource planning ERP. 3. Use information technology to improve the level of mechanical system managementAt present, the above-mentioned problems in the management of seriously affecting the level of corporate governance, management efficiency and competitiveness of enterprises. The use of modern management thinking, methods and computer network communication technology, machinery manufacturing enterprises to achieve the management of innovation, system innovation and technological innovation is facing urgent tasks in front of each enterprise. Therefore, the establishment of linked computer networks, both within and outside plant communication systems, select advanced, mature and suitable for the needs of enterprise management enterprise resource planning ERP, customer relationship management CRM, supply chain management SCM, Business Intelligence BI, e-commerce software systems, such as EC, through the Management Advisory and business process reengineering, and optimize the design of the organization, management, business process, application of these software systems, enterprise information management. Enterprise management in order to overcome the current problems in and improve the level of corporate governance, management efficiency and competitiveness of enterprises, is the face of a knowledge-based economy and global economic integration make the inevitable choice. System aims to: (1) into a company-wide computer network management information system. The system enables enterprises to achieve the production and operation of logistics, capital flow, information flow and work flow of the high degree of unity with the parallel operation, and Intranet, Internet enterprises inside and outside the full exchange of information and business links with the outside world, to form an effective agile supply chain system. (2) the use of advanced production planning and control methods. To break the sets of programs, according to a variety of materials procurement and production lead-time preparation of lead-time MRP. The establishment of an effective and flexible by the master production plan, material requirements planning and job shop scheme composed of three planned production planning management system, reduce the maximum production cycle, procurement cycle, on-time delivery, rapid response to customer demand to maximize the reduction of inventory and costs, improve service levels. Qualified enterprises to implement JIT JIT, supplier of pipe Treasury VMI, synchronous production of advanced management methods. (3) to achieve company-wide basis of data (such as material data, product structure data, product design, process data, capacity data, etc.) to generate a unified, uniform maintenance and management for authorized use of the relevant departments, the number of truly a, data sharing, to avoid redundancy. Through the ERP system to further rationalize the development and implementation of management procedures to ensure the management of institutionalized, standardized and scientific. (4) for the current information in the management division of the situation and establish a customer-centric dynamic information feedback and control system, for each task from the contract, design, production, procurement, cost accounting into the whole process of product shipments Dynamic tracking, so that each task is effectively under control. (5) to strengthen and improve financial management and cost accounting functions. The real cost to build two systems, the use of advanced cost accounting methods, a more accurate accounting of costs and cost components for sales quotes and provide a reliable basis for financial accounting. Conduct a cost analysis to identify the factors that reduce costs and effectively reduce costs. (6) the use of computers to enhance the quality of the statistical analysis of data. Take full advantage of the quality of test data, using a variety of analytical methods, to conduct in-depth statistics and analysis. Effectively monitor and improve the quality level. (7) through computer-based enterprise information management, will be the majority of managers from the tedious manual labor, so that they will have the opportunity to learn management theory and management skills, from the nature of enterprise management personnel to improve the management level. 4. Chinas machinery manufacturing management features Machinery manufacturing and the management of other manufacturing industries have common personality; machinery manufacturing industry with the production type, production volume, production organization of its management practices in different ways there are differences; Chinas manufacturing sector compared with the developed countries, due to corporate culture, law, different system has its particularities. On these characteristics the following topics: (1) machinery manufacturing industry is a typical discrete manufacturing industry, its management software based on the production type, production volume, production organization are different, require different solutions. The chart lists the type of division of production: Characteristics of these types of manufacturers: Discrete Manufacturing - different materials through the movement of non-continuous, through different paths, the production of different materials and products. Such as motor vehicles, machine tools, aircraft, computers, home electrical appliances. Process Industry - materials through mixing, separating, forming, or chemical reaction, mostly for materials through the same path, to produce valuable products. It consists of continuous production, manufacturing production and mixed types. Required in the management of prescription management, by-products, the products, a variety of units of measurement, a number of quality and grade of the same items, batch number tracking, shelf-life characteristics, the general process industry with professional software. Single production - the design of products to order, according to the production of customer demand, product is very complex. Products are generally long production cycle. Sometimes a contract for delivery in accordance with many parts. Such as the three major power plants (major motor, steam turbine, boiler) heavy machinery, shipbuilding and so on. Organization of production divided by the technology, equipment is common. Production management, in addition to the application of multi-variety small-production the whole way, the need to increase the network plan (project management), the key to sort resources. CRM is not important on here. Variety of small batch production - products are standard or optional. Demand can be forecast, or order the production, assembly to order. Production process in accordance with the characteristics of organizations at the workshop, section, team, such as casting, forging, riveting, welding, cars, milling, planing, grinding, assembly and so on. The characteristics of production planning MRPII is a typical configuration control increases. They also need CRM, SCM and so on. Mass production - is a standard or a small number of products matching. Depends mainly on the demand forecast, and also to consider orders. Production equipment is based on materials (parts, components) to form a target assembly article. Production plan is characterized by the traditional mixed MRPII and JIT manufacturing, medium and long-term plans and materials used in production of spare parts requirements planning MRP, the Plan of Implementation adopted JIT, Kanban (Electronic Kanban), recoil inventory tracking barcode program materials. CRM, e-commerce is important. Mass Customization - will be more varieties of small batch production to meet the individual needs of different clients and high-volume production to increase productivity, reduce costs of combining the advantages. Organization of production lines is still, but a variety of product configuration. Production planning control in that it requires a combination of MRP, JIT, integrated applications, such as configuration control. Is a mixture of the first two manufacturing model. Therefore, different types of enterprises, the choice of ERP software in accordance with the management of these different characteristics to find the software to meet business needs. You are an annual production capacity of 100,000 vehicle manufacturing plant, software, and I did not see inappropriate JIT. You are a heavy machinery plant, he does not project management products, the main pieces of the quality of follow-up clearance, I do not trip. In addition, the different focus of corporate governance are not the same, some very complex enterprise sales, but the production simple. Procurement and manufacture some very complex, but only a few one-year contracts, sales management is not important. Therefore, dialectical treatment must prescribe the right remedy. (2) as a result of the East-West cultural differences, making the West we must re-examine the ERP system application in China. The West to law as the focus of the management model, the ERP system is based on Western law-oriented corporate culture, government policy decrees, regulations, taxation policy, the design and development; compare re-schedule, re-plan in order to ensure targeted delivery to the time the main line program, based on a standardized, stressing at the right time to correct the correct amount of materials sent to the right place. Software functions and t