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在工厂车间有时会碰到圆形滚道直径的测量,这里介绍一种方法: 利用三个相同直径的钢球,设直径为d。因为滚道深度小于滚道圆弧半径,所以选择的钢球其半径要略小于滚道的圆弧半径。将钢球互成大约120°的方向放在滚道内,如图所示。然后用另一个圆形滚道的背面压在钢球上,再用螺钉螺母和压板固紧,按滚道直径D的公称尺寸和公差选择量具或量仪,测出尺寸M_1、M_2和M_3,根据海伦公
In the factory workshop sometimes encounter the measurement of circular raceway diameter, here is a method: the use of three identical diameter steel ball, set the diameter of d. Because the raceway depth is less than the raceway arc radius, so choose the radius of the ball is slightly smaller than the raceway arc radius. Place the balls in the raceway approximately 120 ° into each other as shown. And then use the back of another circular raceway pressure on the ball, and then tighten the screw nut and platen, according to raceway diameter D nominal size and tolerance measurement or gauge to measure the size of M_1, M_2 and M_3, According to Helen Gong