外文翻譯-6110型柴油機(jī)活塞設(shè)計及加工工藝過程設(shè)計-展示頁
2025-06-14 22:38本頁面
【正文】 息工程學(xué)院 2021 屆本科 生畢業(yè) 設(shè)計（論文） 外文翻譯 1 A diesel engine works 【 Abstract】 In diesel engine cylinder, the piston part of the cycle in the pressed gases, and in another part of the work cycle of the bustion gas mixture within the cylinder so the piston top surface expansion high pressure (about 116 ~ 120Kgf/cm2)under high temperature (about 569176。C) gas role, and the pressure through the piston pin, connecting rod to the crankshaft. Can be seen that the piston is a long time under high temperature and high pressure in continuous reciprocating motion of the load, its load and working conditions were appalling. During the design process of the piston will be designed to ensure longterm stability of the work piston. The design of the work done by a brief introduction as follows:Diesel Engine Piston 180C reasonable processing technology is important, the role of parts and technology program analysis, preparation of rough form and process manufacturing line, through the analysis, parison, use of the relative concentration of processing programs, and ultimately more reasonable to determine the mechanical line processing. The development process of rough line the main consideration, finishing arrangements, choice of processing methods, centralized and decentralized processes, such as processing the order requirements. Then determine the allowance, process size, after the analysis of the characteristics of the process, select the appropriate processing equipment and technical equipment. Calculated lookup table to determine the next major piston cutting process and the mapping of processes card, the design of the final fixture. Fixture design, it is necessary to take various aspects into account, the strict requirements of the fixture a direct impact on the surface of the workpiece processing position accuracy. Therefore, the machine tool design fixture design is an important task is the processing of one of the most active. During the graduation project in a specially designed positioning accuracy, simple structure and easytouse precision pin hole boring jig. Keywords: Piston。 processing equipment。 Fixture Any type of machine that obtains mechanicalenergy directly from the expenditure of the chemical energy of fuel burned in a bustion chamber that is an integral part of the engine. Four principal types of internalbustion engines are in general use: the Ottocycle engine, the diesel engine, the rotary engine, and the gas turbine. For the various types of engines employing the principle of jet propulsion, see Jet Propulsion。 the diesel engine, named after the Frenchborn German engineer Rudolf Christian Karl Diesel, operates on a different principle and usually uses oil as a fuel. It is employed in electricgenerating and marinepower plants, in trucks and buses, and in some automobiles. Both Ottocycle and diesel engines are manufactured in 大連 交 通大學(xué)信息工程學(xué)院 2021 屆本科 生畢業(yè) 設(shè)計（論文） 外文翻譯 2 twostroke and fourstroke cycle essential parts of Ottocycle and diesel engines are the same. The bustion chamber consists of a cylinder, usually fixed, that is closed at one end and in which a closefitting piston slides. The inandout motion of the piston varies the volume of the chamber between the inner face of the piston and the closed end of the cylinder. The outer face of the piston is attached to a crankshaft by a connecting rod. The crankshaft transforms the reciprocating motion of the piston into rotary motion. In multicylindered engines the crankshaft has one offset portion, called a crankpin, for each connecting rod, so that the power from each cylinder is applied to the crankshaft at the appropriate point in its rotation. Crankshafts have heavy flywheels and counterweights, which by their inertia minimize i
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