Hammerner Kohler Gear Displacement Harmonic Reducer CSF-25-80-2UH

Secondly, if the precision is high, the tooth root strength of the gear with a small pressure angle may not be small. Therefore, in addition to the above reasons, a smaller pressure angle is often used in consideration of machining accuracy. Hammerna Kohler tooth displacement harmonic reducer CSF-25-80-2UH means that in shaving gears, the degree of coincidence between the processed gear and the tooth is closely related to the accuracy of the resulting gear. That is, the greater the degree of coincidence, the smaller the tooth profile error. Therefore, pressure angles smaller than 20° are often used in gears for ships and automobiles.

The reason why the tooth surface strength of spur gears can be significantly improved through displacement is that the node is placed in the meshing area of ​​two pairs of teeth. That is to say, because pitting corrosion almost all starts at the tooth root part close to the pitch circle, if the node is located in the meshing area of ​​two pairs of teeth, then the tooth The strength of a gear whose roots are all located in the meshing area of ​​two pairs of teeth will be increased. Therefore, under the condition that the materials of the two gears are roughly the same, the tooth root of the pinion gear that has a large number of meshes and is prone to pitting corrosion can be located in the meshing area of ​​the two pairs of teeth through displacement. In addition, as is usually done, when the tooth surface hardness of the pinion gear is very large, the tooth root of the large gear is positioned between the two pairs through displacement. tooth meshing area. For this kind of gear whose node is located in the meshing area of ​​two pairs of teeth or is located outside the meshing area. If both gears adopt positive displacement, due to the increase in tooth stiffness, Hamena Kohler tooth displacement harmonic reducer CSF-25-80 -2UH Therefore, the tooth surface strength of the displacement gear with high precision will be large. If the error is large, the tooth surface strength of the displacement gear will be small, which will offset the effect of displacement.