B665型牛头刨床,经过长期使用,摇杆传动齿轮(图1)齿面逐渐磨损,其中小斜齿轮严重,大斜齿轮稍轻。由于牛头刨床工作行程受力大,回程受力小,因而使得大斜齿轮的一车齿数的齿面磨损严重,另一半齿数的齿面磨损较轻。这样,不但使啮合间隙增大,且间隙大小不均,增大机床噪音,影响加工 B665 shaper, after long-term use, rocker gear (Figure 1) gradually wear the tooth surface, of which small bevel gear serious, large bevel gear light. As a result of the work force of the shaper, the return force is small, which makes the gear face of a large bevel gear seriously worn, and the other half of the teeth wear less. In this way, not only the meshing gap increases, and the gap size is uneven, increasing machine noise, affecting the processing