【導讀】的傳遞效率；良好的加工工藝性和裝配工藝性?？傮w結構形式采用兩軸式，從取。力器到專用裝置之間的動力傳遞可以采用機械傳動。器兩齒輪的模數(shù)，壓力角，齒寬等參數(shù)。然后，完成取力器裝配圖和零件圖的繪。最后，編制部分零件的加工工藝過程。整體設計結構緊湊，工作量大，以下是我的分析與論述。

　　

【正文】 peed, power varies. Check power transmission device taken from the car, and the main gearbox design is reserved for taking power from power windows, a small number of check from the engine flywheel power, such as cement mixer from the edge. Special Purpose Vehicle as a result of the diversity of professional installation and decided to take power device products, specifications, form of diversity. Automobile chassis parts and ponents manufacturers to provide unified transmission plants to be large amount of power from several devices. For example, the Dongfeng Motor truck only to adapt the form of flange connecting the output from the power device。 the liberation of car only spline interface to connect to the access edge truck browser. Far can not meet the needs of a variety of dedicated devices. Modified to fit the advantages of the depot, that is a dedicated device. A converted small depot in the production of dozens of units, hundreds more cars, not the ability and energy to produce a dedicated device adapted to take power, and can only rely on the chassis parts and ponents manufacturers. Production gearbox manufacturers, due to take the necessary force varieties, specifications, requirements vary, with the total number less, there is no volume, value and small, good production. No attention to the gearbox plant, large quantities only in high universality of the dump truck from a limited ability to make a device changes, or modification to the depot itself, lead to a reduction in functionspecific devices. For example, check our low speed, power shortage, special features, such as defects in 本科生畢業(yè)設計（論文） 33 action a long time. In order to achieve satisfaction with the special features, modification depot looking for some manufacturers have taken power, and the end result of a small number of varieties, the difference between input and output, and profit do not want to do, or just can not do quality assurance. There is also a factor, the modern automobile products to speed up the rate of replacement, the engine power train, gearbox update soon, two or three years there is the introduction of new products, check our updated browser, not a professional production from a small manufacturer of Power can not keep up the pace of development. It is understood that before there is a check of Power Research Institute, Hubei Automotive Gear Factory is a subsidiary called Yunmeng from the Institute of Power, a very high reputation at the time, only a country, after carrying out the reform disappeared. There are a number of small businesses supporting the depot for the conversion from power devices are in a certain area, supporting the production of a single species, there is no scale of imitation is only slightly modified gearbox factory products to adapt to several models. Because it is imitation, not an accurate transmission of technical parameters, such as taking power away from the center of the gear, check our gear parameters, installation size, resulting in power can not take the normal work of poor quality, short life and even give rise to transmission fight gear tooth, affecting the normal use of the gearbox. All in all, check our product is a dedicated device such vehicle chassis with a dedicated device convergence an important part of an essential, as species, quantity, value and other factors, chassis manufacturer with a dedicated depot do not want more input, so that there a business, requires the development of a professional third party39。s business from strength to bear the role of convergence. Special Purpose Vehicle of the rapid development of power devices from the contradiction between the slow development of an increasingly prominent lag. There is 本科生畢業(yè)設計（論文） 34 market demand, a result, low technological contents, the check shoddy device will have a market power, detrimental to the healthy development of Special Purpose Vehicle, which requires trade associations to regulate the market. Led by the industry associations to set up a set of R amp。 D and manufacturing as a whole from the Institute of Power, is a practical way. In the operation of the rules of market economy, a profit can be the development of force to resolve browser check varieties, specifications, form the majority of small contradictions, there is a way out. Set up the Institute of Power taken from the overall situation, to collect from a variety of power requirements for Special Purpose Vehicle39。s speed, torque output, interface, and various forms of the engine chassis, power transmission from the location of windows, installation size and check the parameters of our gear, the center distance of such information, classification of the design, do a good job in general, the serialization and standardization work, the manufacturing costs down to meet the diverse needs of the depot modification. Give full play to the professional function, to solve the worries. As well as the chassis manufacturing plant due to take force to resolve the factors which might have affected the sale of the chassis. Check power is installed in the engine or transmission on the independence of the annex, not the dominant transmission plant products, its varieties, the output value is not low, but dedicated to OEM chassis market, only production of largevolume, singlespecies power devices from the dump truck. Check power device manufacturing costs, usually from a singlestage power in 300 to 400 yuan / Taiwan, twostage device to check power 400 ~ 500 yuan / Taiwan, sales price in the 800 ~ 1000 yuan / Taiwan, with special changes in large, sales price of a small number in a thousand dollars. Special Purpose Vehicle due to the added value of higher sales prices, check our devices is essential for small manufacturers and products, adapted to their depot to have been accepted by several hundred do