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加工好的齿轮,必须检验它的齿厚是否合乎标准,因为如果齿厚太大,在标准中心距离内两齿轮就不能装配上;如果齿厚太小,就会产生过大的齿隙,使齿轮在传动时不正常,同时在轮系倒转时发生空转。所以检验齿厚,使它合乎标准是很重要的。检验齿厚最常用和最简便的方法,是用齿轮卡尺来测量。如图1所示,先把齿顶滑尺1移动到一定的齿顶数字的地方,把它固定起来,再移动齿厚滑尺2来测量出齿厚。可是,这齿顶的数字究竟是多少呢?这需要由计算得出。同
The machined gear must be tested to see if its tooth thickness is up to standard because if the tooth thickness is too large, the two gears can not be fitted within the standard center distance; if the tooth thickness is too small, excessive backlash will occur The gear is not normal during transmission, and idling occurs when the gear train is turned upside down. So it is important to check the tooth thickness to make it standard. The most common and easiest way to check tooth thicknesses is with a gear caliper. As shown in Fig. 1, the tooth slider 1 is first moved to a certain crest number and fixed, and then the tooth thickness slider 2 is moved to measure the tooth thickness. However, what is the number of this top? This needs to be calculated. with