The gears constituting the gear reduction motor are divided into a helical gear and a spur gear. Why are the gears of most geared motors slanted? We can compare the reasons.
1. Compared with spur gears, the position of the helical geared motor shaft is more free. For example, a differential drive shaft with a helical gear need not be on the same level as the rear axle. If it is a spur gear, it should be on the same level.
2. Reduce noise. If the gear reduction motor uses helical gears, the noise will be much lower than the straight teeth at the same speed. The reason is that the surface of the helical gear of the geared motor is first point contact, then transition to surface contact, and then to point contact. The spur gear is the contact of the line line. The transition of the helical teeth is smoother. Therefore, the sudden change in contact produces less noise than flat teeth.
3. The helical gear has a large degree of coincidence and at the same time enters the mesh with a large number of teeth. Reduce shock and noise, make the drive smoother, and withstand high speed and heavy loads.
4. Avoid the use of undercuts with a small number of teeth during processing. The corresponding gear head is small, so the gear reduction motor using the helical gear is small in the case of the same gear ratio.
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