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在凿岩机活塞转动套副花键齿形的设计中,目前见到的都是把活塞花键齿(以下简称键齿)半角与转动套内花键槽(以下简称键槽)半角的角度设计成相等的,如图1中的α=β。并且,对于键齿与键槽的配合给定了较大的设计齿侧间隙。设设计齿侧间隙为f:变换(1)式B=b+2f (2)式中B——键槽在分齿圆上的槽宽(弦长) b——键齿在分齿圆上的齿厚(弦长) f值一般取0.15～0.50毫米下面分析一下这种齿形的花键齿在工作状态下的接触啮合情况。由于键齿半角与键槽半角相等(参见图1),
In the design of the secondary spline tooth shape of the rotary sleeve of the rock drill piston, what we see now is that the angles of the half-angles of the piston spline tooth (hereinafter referred to as the key tooth) and the spline grooves of the rotating sleeve (hereinafter referred to as keyway) are designed to be equal , As shown in Figure 1, α = β. Also, the larger design flank clearance is given for the key and keyway engagement. Set the design side of the gap for the f: Transformation (1) B = b + 2f (2) Where B - the groove on the tooth groove groove width (chord) b - Tooth thickness (chord) f value is generally taken 0.15 ~ 0.50 mm The following analysis of this tooth-shaped spline teeth in the working state of contact and engagement. Since the half angle of the key teeth is equal to the half angle of the key groove (see Figure 1)