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任何机器都是由若干相互关联的零部件以一定的组合方式,按规定的技术要求装配而成。平键联结是机械联结的主要方式之一,它不仅用于各种机器内部,也用于机器间的联结,而应用最广泛的则是普通键联结,即通过联轴器或皮带轮,将两台机器的传动轴联结在一起,起到传动扭矩的作用。按JB/DQ3334.1-88中小型电机产品分等通则规定,电机轴伸键槽对称度是安装尺寸的考核项目之一,并规定轴伸键槽对称公差不得低于9级。目前轴伸键槽对称度的检测国内尚无较理想的方法,它直接影响着电机零部件装配的互换性,也影响产品质量的认证、定级分等及产品创优等工作。为了解决生产的急需,我们研制了一种专用检测量具,使用这种检测量具,可以测得位移误差和位斜误差,提高检测效率,也为电机行业提供了一种对称度检测简易又在一定范围通用的量具。
Any machine is composed of a number of interrelated parts to a certain combination of assembly in accordance with the provisions of the technical requirements. Flat-key connection is one of the main ways of mechanical connection. It is not only used in all kinds of machines, but also used in the connection among machines. The most widely used is the ordinary key connection, that is, through coupling or pulley, Taiwan’s machine drive shaft together, play the role of transmission torque. According to JB / DQ3334.1-88 small motor classification rules, motor shaft keyway symmetry is one of the installation size of the assessment items, and provides axial symmetry of the keyway slot tolerance of not less than 9. At present, there is no ideal method to detect the symmetry of shaft extension keyway in China, which directly affects the interchangeability of motor parts and components assembly, as well as the certification of product quality, grading and product excellence. In order to solve the urgent need of production, we have developed a special measuring tools, the use of this measuring tool, you can measure the displacement error and bit error, improve the detection efficiency, but also for the motor industry to provide a simple and symmetrical degree of detection in a certain Range of universal measuring tools.