Because there are more or less errors in gear processing, the actual tooth profile cut out often has a certain tooth profile error with the theoretical tooth profile, which will cause a pair of gears from the beginning of the mesh to the disengagement process to cause uneven tooth surfaces and produce shocks And noise, directly affect the stability of work.What are the main factors of rigid transmission stability?

    The short-period error or high-frequency error with one tooth of the gear as the cycle mainly affects the smoothness of work.The main influencing factors are:

    1. The base section of the two gears is not equal

    2. Tooth profile error (tooth profile error): In the working part of the tooth profile, the normal distance between the two designed tooth profiles that contain the actual tooth profile and have a smaller distance.The tooth profile error affects the smoothness of the transmission.

    What parameters can be tested?

    (1) Tooth profile deviation:In order to grade the gear quality, it is only necessary to check the total deviation of the tooth profile.

    (2) Tangential comprehensive deviation:It mainly reflects the short-period comprehensive errors caused by the installation and manufacturing errors of the tool indexing worm, the tooth profile, tooth pitch and other short-period comprehensive errors on the gears, which are comprehensive indicators.

    (3) A tooth radial composite error:When the gear and the measuring gear mesh for a full circle on both sides, it corresponds to a radial comprehensive deviation value of the tooth pitch.

    (4) Single pitch deviation:For the detection of single pitch accuracy, two devices are commonly used, one is a pitch comparator and the other is an angle indexer.The actual tooth pitch between the tooth surfaces on the same side along the gear circumference is compared and measured with the theoretical tooth pitch.

    (5) Base circle pitch deviation:Since the single pitch PT has a fixed relationship with the base circle pitch pb, the base circle pitch deviation can be used as a test item.The pitch deviation of the base circle is measured on the tangent plane along the base circle, which has nothing to do with the gear axis.