1、 外文资料翻译 学生姓名： 专业班级： 机械 设计制造及其自动化 04 级 2 班 指导教师： 2008 年 6 月 装载机发展概况 Abstract This paper have discussed s.s. ZL-50 type fork-lift truck mainly overall fictitious prototype design as well as some kinds of typical schoolwork operating modes imitate and emulate , include equipment and the overall parts n
2、eeded build mould. In this design course, have applied ADAMS software and the software of PRO/ENGINEER. ADAMS software is used in the emulation of some kinds of schoolwork operating modes, and the software of PRO/ENGINEER is used to build mould mainly. Through the simulated emulation for some kinds
3、of overall schoolwork operating modes, can see relatively distinctly the overall possible condition in actual schoolwork course that met , can in time modify , have reduced actual design time , have raised production efficiency. The innovation of this design Zhi is in in, imitate and have emulated f
4、ork-lift truck the 3 kinds of typical schoolwork operating mode in actual schoolwork, is effect again have imitated in actual schoolwork the hydraulic impact of use, so when being helpful to solve actual loading, the actual problem of meeting the stock that is hard to uninstall can so raise producti
5、on efficiency. Key words: Fork-lift truck 、 fictitious prototype , build mould, emulation, optimization、 production efficiency Loader Development Chinas modern 20 wheel loaders began in the mid-1960s of the Z435. The aircraft as a whole rack, rear axle steering. After years of hard work, the attract
6、ion was the worlds most advanced technology wheel loader on the basis of the successful development of the power of 162 KW of shovel-fit wheel loaders, stereotypes for Z450 (later ZL50), and in 1971 December 18, formally appraised by experts. Thus the birth of Chinas first articulated wheel loader,
7、thus creating our industry loader formation and development history. Z450-type loader with hydraulic mechanical transmission, power shift, Shuangqiaoshan drive, hydraulic manipulation, articulated power steering, gas oil Afterburner brake wheel loaders, and other modern, the basic structure of the w
8、orlds advanced level for the time . Basically represent the first generation of wheeled loading the basic structure. The aircraft in the overall performance of dynamic, and insertion force a rise of power and flexibility, manipulation of light, the higher operating efficiency of a series of advantag
9、es. 1978, Heavenly Creations by the Department in accordance with the requirements of machinery, worked out to LIUGONG Z450-based type of wheel loaders series of standards. The development of standards, with reservations Z representatives loaders, L replaced by 4 on behalf of wheel, for ZL50 to Z450
10、, it is so developed a LIUGONG ZL50-based China ZL-wheel loaders series of standards, this is Wong loader on the development of Chinas a major turning point. The standard was worked out by the industry after the division of labor, LIUGONG Xiamen ZL40 the manufacture of the large and medium wheel loa
11、ders, as workers, to the following small and medium-sized manufacturing ZL30 wheel loaders, and gradually formed a LIUGONG Xiamen workers, and 10% for workers at the loader to four backbone enterprises. To the late 1970s, early 1980s loader manufacturing enterprises in China has increased to more th
12、an 20, China has initially formed the loader industry. So far, China has developed wheel loader to the third generation, but the basic structure is still the Z450 (ZL50) evolved from. Change is not a very large second generation, third generation of some larger changes. 2001 China loader industry-wi
13、de total sales have exceeded 30,000 Taiwan, the world loader in the forefront of the market. Therefore, at present, China has become the worlds loader marketing power. Prospect of small loader For a long time, small loader always been neglected in the status of a government department, not to regula
14、te the management of the industry, well-known businesses loader products is dismissive. However, these did not affect small loader (hereinafter referred to small equipment) rapid development, and now with a small market despite its huge market demand has attracted such as the Long renowned engineeri
15、ng machinery enterprises to participate in the competition, the main battlefield in the rural areas with the small size of the market, sales have already reached 4 5 million, more than 200 brands to participate in market competition. But small market can be said to be installed speed expansion disor
16、derly competition coexist. How to achieve industrial upgrading is placed in front of the small equipment industry must resolve a problem. Lack industry attribution Compared with large and medium-sized industries loaders, small with the development of the industry can use plan to describe, not only g
17、overnment departments related to the absence of industrial policies or development plans, and to date, industry has not completely clear attribution, the reality of the small equipment industries across engineering machinery, agricultural machinery and construction machinery, the three industries of
18、 grey areas. Despite the small market with a flourishing, but all small equipment manufacturers and dealers can dodge exists in the industry before the many obstacles to development. Small installed mainly refers to the rated load between 0.3 0.9 T products, also known as micro-loader. As industry o
19、wnership is not clear, with small products has been no unified national technology and quality standards, the overwhelming majority of products are installed in the small-wheeled tractor developed on the basis of the. In addition small installed the product is currently used by the main component parts
