帶順倒車離合器的減速齒輪箱的設(shè)計(jì)【含8張CAD圖帶開題報(bào)告-獨(dú)家】.zip,含8張CAD圖帶開題報(bào)告-獨(dú)家,倒車,離合器,減速,齒輪箱,設(shè)計(jì),CAD,開題,報(bào)告,獨(dú)家 目 錄 1 英文文獻(xiàn)翻譯 1 1.1Development status of gear industry and decelerator 1 1.2齒輪行業(yè)及減速箱發(fā)展現(xiàn)狀 11 2 專業(yè)閱讀書目 17 2.1 機(jī)械設(shè)計(jì) 17 2.2 機(jī)械原理 17 2.3 聯(lián)軸器、離合器設(shè)計(jì)與選用指南 18 2.4 現(xiàn)代工程制圖 18 2.5 機(jī)械設(shè)計(jì)手冊 減速箱和變速箱 19 2.6 機(jī)械設(shè)計(jì)課程設(shè)計(jì) 20 2.7 互換性與測量技術(shù)基礎(chǔ) 20 2.8 理論力學(xué) 21 2.9 材料力學(xué) 21 2.10 機(jī)械零部件選用與設(shè)計(jì) 22 1 英文文獻(xiàn)翻譯 1.1Development status of gear industry and decelerator The gear is the main foundation to restrict the domestic machinery manufacturing industry. There are more than 200 Chinese bone gearing factories (including two major categories of vehicle gear and industrial gear), with an annual output value of about 25 billion yuan. In twenty-first Century, the machinery industry will remain an indispensable pillar of the national economy. Experts predict that by 2020, China's machinery and transportation industry will catch up with or surpass some developed countries. Therefore, gear operation is necessary to formulate the strategy for twenty-first Century, so as to adapt to the competition of the global knowledge economy. According to the market research center of Yu Bo think industry, with the rapid development of domestic economy in recent years, the export volume of heavy machinery industry is increasing. As an important basic industry, the development of the reducer industry is very rapid. The reducer company is expanding its production and marketing scale, improving its processing capability and technology level continuously. The future market of reducer industry will be a great prospect. From the beginning of our country's gear reducer from the beginning of China's development to today, in fact, the effect is not very significant, the mode of production and manufacture has not changed. Compared with this model, many foreign gear reducer enterprises rely on the advantages of technology, management, capital and other advantages to obtain unique market share, and step by step. The market for speed reducer in China. China's reducer industry is facing a serious market crisis in the face of the strong ma rket crisis of foreign products in China's Reducer Market. This crisis is also greatly stimulated by domestic speed reducer enterprises. Foreign products compete to defend the domestic reducer Market. According to the preliminary statistics, the industries with large amount of speed reducer are: power machinery, metallurgical machinery, environmental protection machinery, electronic appliances, road building machinery, chemical machinery, food machinery, light industry machinery, mining machinery, transportation machinery, construction machinery, building materials machinery, cement machinery, rubber machinery, water machinery, and petroleum machines. Machinery and so on, the number of reducer products used in these industries has accounted for 60p. of the total number of reducer in various industries across the country. The status of the reducer at home and abroad Abroad in the design and production of advanced reducer has been very mature, some well-known manufacturers have more than one hundred years of experience in the production of reducer, market share is very considerable. For example, SIEMENS's FLENDER reducer is currently the largest reducer supplier in the industry, and has high attainments in product structure design and manufacture. Foreign reducer is widely used in many industries, such as electric power, food, construction, mining, water conservancy and so on. Its manufacturing standard is higher than that of domestic. The standard of hard tooth reducer in our country also comes from the production standard of SIEMENS company. The development history of domestic reducer also has nearly 40 years, the number of manufacturers and various forms. At present, the standard series of various kinds of universal decelerator in China have reached hundreds, which can basically meet the needs of the general reducer in various industries. However, compared with foreign countries, there is still a big gap in the level of the reducer, and the problem with the foreign and foreign decelerator industry is that the development ability of the new product is weak, the technological innovation and the management level are low. With the rapid development of domestic economy in recent years, the export volume of heavy machinery industry is increasing. As an important basic industry, the development of the reducer industry is very rapid. The reducer company is expanding its production and marketing scale, improving its processing capability and technology level continuously. The future market of reducer industry will be a great prospect. Heavy machinery market demand is large, while the demand of heavy machinery market is increasing, the industry has also carried out fruitful work in the aspects of product upgrading, two integration and energy saving and emission reduction. In terms of product upgrading, the pace of technological updating of old products has been accelerating for many years. In the joint or independent research and development way, the bridge and gantry crane industry has innovated the old products, and formed the upsurge of product upgrading in the industry. Beijing lifting and Transportation Machinery Research Institute jointly carried out lightweight work of bridge cranes in many enterprises, and has made some progress at present. The industry is actively introducing variable frequency drive technology, remote control and information technology to speed up the upgrading of products to high-end technology. The main hoisting device developed by the industry in the gearless box gearbox of the industry began to test the water in the market. Demand for heavy machinery and spare parts will increase in the international market. With the gradual recovery of the European and American countries' economy, the reestablishment of the status of the real economy in the national economy and the basic construction demand of the developing countries, the heavy machinery products will have more space for development in the international market. Development trend of gear reducer in heavy machinery With the attention of the state to the machinery manufacturing industry, the acceleration of the process of the localization of major equipment, the construction of the urban renovation and the construction of the stadiums and other projects, the market prospect of the reducer is promising, and the whole industry will still maintain the rapid development trend, especially the growth of the gear reducer, which is most matched with the imported equipment. Gear reducer is related to gear reducer From the status observation and investment prospect analysis of the gear reducer industry in China, it is understood that the reducer is a kind of power transfer mechanism, which is used to reduce the speed and increase the torque. It has a wide variety of models, different types and different uses. The products designed for the heavy machinery decelerator include all kinds of gear reducer, planetary gear reducer, worm gear reducer and cycloid pin reducer, and also include various special transmission devices. Development trend of reducer (1) high level and high performance. The cylindrical gears are generally carburized, Quenched and grind. The bearing capacity is increased by more than 4 times, small volume, light weight, low noise, high efficiency and high reliability. (2) Building block design. The basic parameters are the priority number, the size and the specification are neat, the parts generality and interchangeability are strong, the series is easy to expand and refurbished, which helps to organize mass production and reduce the cost. (3) The type is diversified and the variant design is more. Out of the traditional single base installation method, adding the hollow shaft suspension, floating support base, motor and reducer integral connection, multi azimuth installation surface and other different types, expand the scope of use. At present, more and more driving equipment in engineering has been driven by motor. Because the high torque of the motor is low, the actuator can not be driven directly. This must use the reducer to transmit power. The gear reducer commonly used in engineering is gear reducer. The gear reducer has a long history of application. The rapid development of modern industry also puts forward higher requirements for the reducer, which is mainly manifested in higher power capacity, shorter R & D cycle, large torque range, variety of design forms, high life and reliability. Sex and so on. The gear industry is the foundation of the machinery industry. Compared with the mechanical assembly industry, the gear industry belongs to the industry with the most intensive technology, the most intensive capital and the largest scale. Gear and its gear products are important foundation parts of mechanical equipment. The main transmission parts of most mechanical complete sets of equipment are gear transmission. Therefore, to some extent, the gear industry in China is the basis of China's machinery industry, and the development of the gear industry has a vital role in the Chinese machinery industry. China's gear industry basically consists of three parts, namely industrial gear, vehicle gear and gear equipment. Industrial gear drive manufacturing includes industrial general, special, heavy load gear drive, special gear box for metallurgy, mine, cement, ship and so on. Vehicle gear transmission includes vehicle gear and vehicle speed change assembly, mainly for automobile, construction machinery, agricultural machinery and motorcycles. Gear manufacturing industry includes gear machine tools, cutting tools, measuring tools, experimental equipment, gear lubrication and sealing fields. In this regard, domestic development is still relatively rapid. During the "12th Five-Year", the gear industry in China faced the opportunity of rejuvenating and intensifying. The market competition at home and abroad was intensifying, and the deep internal contradictions in China inevitably affected the pace of the industry. But the basic force to promote the innovation and development of technological progress of the industry is irreversible. It is expected that the whole industry will achieve stable development with an average annual growth rate of about 30% in the process of transformation and upgrading. Due to the resurgence of trade protectionism, the pressure on the appreciation of RMB and the increasing risk of export exchange rate and the decline in the consumption level of developed countries, the export competition of China's gear products will be aggravated. Therefore, while maintaining some cost advantages, the industry must expand exports by new advantages such as technological progress, quality improvement and product cost performance. All walks of life are constantly developing, and the gear industry is the same. The performance of the bevel gear is rapidly improved and the quality of the product has been continuously strengthened. But the change of market quotes is also known to the parachute gear enterprises. It wants to develop well in the future market, the product should be innovating, and the enterprise also needs to develop. In the development of many enterprises, many companies in the market are slowly changing from resource driving to innovation driven development. On the basis of innovation and development, the development of product strategy, the change of management system, and the reshaping of business model test the wisdom of every enterprise in the industry, and it is also the problem that many companies need to solve. For the bevel gear industry, we want to continue to develop in the market, whether it is technology or production mode, we must continue to develop. The development of gear industry is more and more vigorous. It is also a very good trend, and is also an inevitable trend of the development of the industry. From the production of a small product to the production between enterprises, many improvements and setbacks, but still able to survive in modern science and technology machinery, gear reducer also has an extraordinary course. For the former gear reducer, there are more functions in the use of machinery, but only satisfy the mechanical operation needs. And in the domestic market, this product is still very few, and it is necessary to rely on imported gear reducer to meet the demand of consumption. Therefore, the development of gear reducer is more urgent and thirst. With the explosion of knowledge, the development of science and technology and the improvement of the economic level, the small transmission devices such as gear reducers are being improved step by step. From the original simple to meet the mechanical performance, to the present high level performance, it has a large power, can carry heavy machinery. Moreover, the previous sketchy form is also in the development of science and technology, and is constantly designed to make its appearance more novel and unique. In addition, the gear reducer is also improving the quality of the product, increasing the rotational speed and prolonging its service life to meet the needs of the work. In the domestic market, more and more gear reducer enterprises develop, constantly expand their market, and the state is also committed to self manufacturing, improving the quality of raw materials, improving the quality of staff, and can enrich the demand for gear reducer. Many large enterprises are also producing a large number of products, increasing the supply capacity, so that supply and demand can be balanced. For gear reducer, what we see is not only its scientific and technological content, but also the existing technology to automatically meet the needs of self, but also can be extended to the outside. This product needs to set up a diversified, standardized target, and make reasonable design and selection in the matching of other auxiliary parts or components. Gear reducer gear conditions should also be updated to reduce the noise generated by the product, but also to choose high-quality raw materials to reduce costs. Fair competition among enterprises should be done to improve the value of products and make more capital to facilitate turnover and achieve win-win results. Reasonable market gear reducer structural changes, demand analysis, can be synchronized with the trend of the times. In the field of industrial enterprise's capacity expansion and technological transformation, it has developed rapidly in recent years. This aspect is benefited from the strong demand in the market in recent years. On the other hand, it is also driven by the subjective desire of enterprises to expand production scale, improve processing and manufacturing level, and then improve the competitiveness of enterprises. The key processing equipment purchased by the manufacturer in the past two years, such as the large gear grinding machine, boring and milling machine, technical center and heat treatment equipment, has accumulated more than 200 sets. It is expected that the production capacity of the industry is more than doubled, and the development of the technical reform has the objective effect of the scale of the industry and the medium and competitiveness of the industry. There are still many practical problems, such as the number of enterprises, small size and uneven level. With the decline of market demand and the large-scale entry of foreign counterparts in the domestic market, the industry competition will be further intensified. This will also promote the merger, integration and even transformation of industry enterprises. In the market competition of the product sales machine, the expansion momentum of foreign manufacturers in China has become stronger in recent years. SEW company continues to deploy production and sales bases throughout the country and expand market share. FLEDER company, bond company, Bray Vinnie company and FORK, Sumitomo and other companies have also increased the pace of establishing production bases and sales centers in China, and actively infiltrate into various industries. The advanced management and management ideas of foreign manufacturers, rich market actual combat and development experience and various product series will be domestic The challenges and impacts that manufacturers have to emphasize will be felt by domestic manufacturers in the increasingly fierce competition between domestic and foreign counterparts. At present, in the aspect of the expansion of domestic transmission products, the main forms of mass export of medium, small power medium and small specifications are still in the main form. The share of the leaders in this aspect is still relatively small, and the quality and extensiability of the products are improved and the international market is actively exploited. It is the domestic enterprises to seek the development of the market machine. An important way out. Looking at the current situation of the domestic decelerator industry, in order to maintain the healthy and sustainable development of the industry, we should see the existing problems while fully affirming the development and progress of the industry, and actively study the countermeasures and take measures to make progress in a short time. At present, there are some prominent problems in the industry of the same outer speed reducer, which are the weak development ability of the new product, the low level of technological innovation and management, the more extensive management mode of the enterprise, the low and middle grade, the lack of international influence products brand, the industry as a whole, the disorderly situation are still relatively strict. It's heavy. On the basis of this, we should promote the merger and integration among the enterprises with the advantages of the industry, and form some brands with certain market influence as soon as possible, with large scale and strength, strong product R & D and technical support, so that it can maintain a certain advantage in the competition with foreign counterparts and continue to gain a certain advantage. In order to develop. Now, China has become a big gear manufacturing country. China's gear enterprises have been fully integrated into the world's supporting system. More importantly, China's gear industry has formed the most complete industrial system in the world, which can be said to cover the whole field of gear products. In terms of products, China's gear products have historically realized the transition from low end to middle end, and some high-end products have emerged. At present, the precision reducer is mainly used in industrial robots, CNC machine tools and automation equipment. In the next few years, China's industrial robot industry will be in a period of rapid development, which provides a broad market prospect for high-precision, high-performance joint reducer. Unfortunately, China's robot precision decelerator has long relied on imports. Fortunately, this situation is about to change. After the industry's "tracking research" and "independent innovation" and the strong support of the government, the industrialization of the multi class robot RV harmonic reducer is being pushed forward, and 1 million capacity will be formed in the next 3 years, which will support the development of China's robot and intelligent equipment industry. The gear industry has entered the fourth pole development, and independent innovation has become the main theme. The author inspected that the first three growth of China's gear industry was mainly due to introduction, digestion and innovation. And the fourth pole of the development of the gear industry to reshuffle the opportunity to reshuffle, the new leading enterprises will stand out, some of the old companies will lose the opportunity for development, or even out of the market. 1.2齒輪行業(yè)及減速箱發(fā)展現(xiàn)狀 齒輪是制約國內(nèi)機(jī)械制作業(yè)展開的主要基礎(chǔ)件，中國現(xiàn)有骨千齒輪廠200多家（包含車輛齒輪與工業(yè)齒輪兩