Spline Axis History
2021-03-30In 1674, the Danish astronomer Romer first proposed the use of an external cycloid as a tooth profile curve to obtain a smooth spline shaft. Splined shafts can play an important role and performance in certain industries, and are produced and processed according to principles and working procedures to ensure that they play an important role in production.
During the industrial revolution of the 18th century, the spline shaft technology was developed at a high speed, and a lot of research was carried out on the spline shaft. In 1733, the French mathematician Kami published the basic law of tooth profile engagement; in 1765, the Swiss mathematician Euler suggested using the involute curve as the tooth profile curve.
The hobbing machine and gear shaping machine that appeared in the 19th century solved a lot of problems in producing high-precision gears. In 1900, Pffort installed a differential gear for the gear hobbing machine, which can machine the helical gear on the gear hobbing machine. Since then, the hobbing gear of the gear hobbing machine has been popularized, and the processing gear has become the overwhelming advantage. The involute gear has become the most widely used gear. .
In 1899, Rashe first implemented the solution of the displacement gear. The displacement gear not only avoids the root cutting, but also the center distance and the load bearing capacity of the spline shaft.
In 1923, the United States Wilder Haber first proposed the gear with a circular tooth profile. In 1955, Sunovikov conducted an in-depth study on the circular arc gear, and the arc gear was applied to the production. The gears have high load carrying capacity and efficiency, but they are not as easy to manufacture as involute gears, and further improvements are needed.