齿轮行业及减速箱发展现状毕业课程设计外文文献翻译中英文翻译.docx

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1、1 英文文献翻译1.1Development status of gear industry and deceleratorThe 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

2、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, Chinas machinery and transportation industry will catch up with or surpass some developed countries. Therefore, gear operation is

3、 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 indus

4、try 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

5、prospect. From the beginning of our countrys gear reducer from the beginning of Chinas 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

6、technology, management, capital and other advantages to obtain unique market share, and step by step. The market for speed reducer in China. Chinas reducer industry is facing a serious market crisis in the face of the strong market crisis of foreign products in Chinas Reducer Market. This crisis is

7、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,

8、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 s

9、o 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 abroadAbroad in the design and production of advanced reducer has been very mature, some well-known manu

10、facturers have more than one hundred years of experience in the production of reducer, market share is very considerable. For example, SIEMENSs FLENDER reducer is currently the largest reducer supplier in the industry, and has high attainments in product structure design and manufacture. Foreign red

11、ucer 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 devel

12、opment 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. Howev

13、er, 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 develo

14、pment 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

15、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 ene

16、rgy 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 ups

17、urge 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, remot

18、e 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 inte

19、rnational 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 i

20、n the international market.Development trend of gear reducer in heavy machineryWith 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 stadium

21、s 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 reducerFrom the status observat

22、ion 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 f

23、or 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 carburiz

24、ed, 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 inter

25、changeability 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

26、 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 directl

27、y. 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 powe

28、r 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 tech

29、nology, 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 b

30、asis of Chinas machinery industry, and the development of the gear industry has a vital role in the Chinese machinery industry. Chinas gear industry basically consists of three parts, namely industrial gear, vehicle gear and gear equipment. Industrial gear drive manufacturing includes industrial gen

31、eral, 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 i

32、ncludes 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 ma

33、rket 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 ind

34、ustry 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 consumpti

35、on level of developed countries, the export competition of Chinas 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

36、 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 fut

37、ure 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 prod

38、uct 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

39、 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

40、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

41、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 sm

42、all 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 scien

43、ce 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

44、 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 pr

45、oducts, 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

46、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 cos

47、ts. 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 industr

48、ial enterprises 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, impro

49、ve 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 comp