专业英语 机械专业 机械工程专业英语.docxVIP

机械工程专业英语院系：机电学院班级：机教101班姓名：尉新飞学号：20100315115Speedreducer 减速器Reducer is a dynamic communication agencies,the useof year speed converters, motor rotational speed reducer to the rotary to be few, and have greater torque institutions. 减速器是一种动力传达机构，利用齿轮的速度转换器，将马达的回转数减速到所要的回转数，并且得到较大转矩的机构。Local deceleration machine much with the wheel gear spread to move, the pole spread to move for lord, but widespread exist power and weight ratio small, or spread to move ratio big but the machine efficiency lead a low problem.There are also many weaknesses on material quality and craft level moreover, the especially large deceleration machines problem is more outstanding,and the service life isn’t long.The deceleration machine of abroad, with Germany, Denmark and Japan be placed in to lead a position, occupying advantage in the material and the manufacturing craft specially, decelerating the machine work credibility like, servicelifelong.But it spreads to move a form to still take settling stalk wheel gear to spread to move as lord, physical volume and weight problem, don’t also resolve like国内的减速器多以齿轮传动、蜗杆传动为主，但普遍存在着功率与重量比小，或者传动比大而机械效率过低的问题.另外，材料品质和工艺水平上还有许多弱点，特别是大型的减速器问题更突出，使用寿命不长.国外的减速器，以德国、丹麦和日本处于领先地位，特别在材料和制造工艺方面占据优势，减速器工作可靠性好，使用寿命长.但其传动形式仍以齿轮传动为主，体积和重量问题，也未解决好.　The direction which decelerates a machine to is the facing big power and spread to move ratio, small physical volume, high machine efficiency and service life to grow greatly nowadays develops.Decelerating the connecting of machine and electric motor body structure is also the form which expands strongly, and have already produced various structure forms and various products of power model numbers.Be close to ten several in the last years, control a technical development because of the modern calculator technique and the number, make the machine process accuracy, process an efficiency to raise consumedly, pushed a machine to spread the diversification of movable property article thus, the mold piece of the whole machine kit