The worm gear, as a unique gear with a special tooth shape that meshes closely with the worm in the mechanical transmission system, holds an indispensable position. When cutting the tooth part of the worm gear, it is generally accomplished with the aid of a powerful gear hobbing machine, mainly including two effective methods: gear hobbing and fly-cutter gear cutting. Moreover, in order to achieve higher accuracy and better surface quality of the worm gear, after the gear hobbing or gear cutting process is completed, fine finishing operations such as shaving, honing or lapping are usually further implemented.
In the gear hobbing process, a worm gear hob with the same basic parameters as the working worm is carefully selected and processed strictly following the principle of the generating method. This processing method can effectively ensure the accuracy and precision of the worm gear tooth shape, thereby ensuring the stability and reliability of the worm gear during the transmission process.
When undertaking the design work of the reducer, special attention must be paid to the matching problem between the worm gear and the worm. Because the reasonable matching degree between the worm gear and the worm directly has a profound impact on the performance of the reducer, energy transfer efficiency, overall service life and stability during operation. If the matching between the two is not appropriate, it is very likely to cause a series of troublesome problems, such as the transmission process becoming no longer smooth, resulting in operational stuck; the noise significantly increases, forming irritating noise pollution; the wear intensifies sharply, shortening the service life of the components; and even serious failures may occur, causing the entire equipment to stop operating, bringing great inconvenience and losses to production and work.