Reasons for using helical gears in the manufacture of cycloidal pinwheel reducers

Reasons for using helical gears in manufacturing
The reason why the cycloidal pinwheel does not choose the spur gear is mainly because the spur gear will vibrate!Due to external reasons such as design and manufacturing or deformation, some changes in the involute profile may occur along the entire tooth surface at the same time.The resulting vibrations can cause large loads on the gears, i.e. noise.A further disadvantage is that the additional strength sometimes obtained by the meshing of two pairs of teeth during the contact time cannot be utilized because the stress is limited by the condition of the meshing of the single teeth during the cycle.Huibang Transmission mainly produces helical gear series cycloidal pinwheel reducers with complete models and specifications.
The helical gear can be regarded as a cylindrical gear formed by dislocation of a group of thin-toothed gears, so that the contact of each piece is at different parts of the tooth profile, thus compensating for the error of each thin-film gear. The elasticity of the teeth is very effective, leading to the conclusion that teeth within 10mm of error can average the error and thus run as smoothly under load as teeth within 1mm of error.Since at any instant there will be two teeth meshing about half the time (assuming a coincidence of about 1.5) this provides an additional benefit in terms of strength.Therefore the stress can be based on 1.5 times the tooth width instead of one tooth width.
It is difficult and uneconomical to manufacture and assemble a large number of thin spur gears, so they are manufactured as a whole gear with the teeth along the helix direction.Helical gears are not like spur gears in that they cause undesirable axial forces.However, the advantages in terms of vibration and strength far outweigh the disadvantages caused by axial thrust and slightly increased manufacturing costs.
Therefore, it can be concluded from the above discussion that helical gears are used instead of spur gears in the manufacture of cycloidal pinwheel reducers. For example, four series: R series coaxial helical gear reducers, K series spiral bevel gear reducers, and S series helical gears Worm gear reducer, F series parallel shaft helical gear reducer.