During traditional helical gears of parallel axle with external engagement engage, the direction ofrotation is converse.
传统的平行轴外啮合斜齿轮在啮合传动过程中，两齿轮的转动方向是相反的。
2
The results showed that the weld detects on the surface of the axle was the reason to cause low stress fatigue under rotation bending stress which finally lead to the fatigue cracks on the axle.
结果表明，该轴断裂是由于轴表面存在焊接缺陷，在旋转弯曲应力作用下产生低应力疲劳开裂。
3
Introducing a kind of dynamic capability study method which tested jumpiness of the sawblade made in Germany on the precision sizing saw machine, as well as vibration of principal rotationaxle.