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农机齿轮、机床齿轮和汽车齿轮是齿轮用得最多的几大种类。与其它齿轮相比,农机齿轮有其特点:一是生产批量最大,全国每年共生产农机齿轮达3000多万件;二是价格最低.机床齿轮、汽车齿轮约为农机齿轮的2～5倍;三是精度要求不高,一般在7级(JB179～83)以下;四是制造材料不同,农机、汽车齿轮常采用渗碳钢制造,而机床齿轮常用调质钢制造,齿轮进行感应热处理。由于存在这些区别,所以在贯彻齿轮JB179—83新标准过程中,应采取适当的方法,才能取得完满的结果。农机齿轮由于产品
Agricultural gear, machine gear and gear is the most widely used gear several major categories. Compared with other gear, agricultural gear has its own characteristics: First, the largest production volume, the country produced a total of more than 30 million pieces of agricultural machinery each year; the second is the lowest price. Machine gear, car gear about agricultural gear 2 to 5 times; Third, the accuracy is not demanding, generally less than 7 (JB179 ~ 83) the following; Fourth, different manufacturing materials, agricultural machinery, automotive gear often made of carburized steel, and machine tools commonly used quenched and tempered steel, gear induction heat treatment. Because of these differences, proper methods should be taken in implementing the new gear JB179-83 standard to achieve a satisfactory result. Agricultural machinery gear due to product