Hypoid gear is also called “elevation gear”. The conical surface is used as the indexing surface to approximately replace the falling wheel of the end section surface away from the throat on the hyperbolic body.
A gear whose indexing surface is a hyperboloid is called a hyperboloid gear. Due to the difficulty in manufacturing hyperboloid gears, the quasi double curved surface close to hyperboloid is often used as the indexing surface. This kind of gear is called hypoid gear. Its shape is very similar to curve tooth bevel gear, and its tooth height can be divided into: Standard shrinkage tooth; Double shrinkage teeth; Inclined root line contraction teeth and contour teeth of long epicycloid.
A hypoid gear is also called a hypoid or hypoid gear, which has a hypoid axis.
The importance of hypoid gear in the development of automobile rear axle assembly is paid more and more attention by developers, and the requirements for gear weight, transmission stability, bearing capacity and service life are also higher and higher.
Because the tooth surface of hypoid gear is a complex curved surface, it is difficult to obtain a more accurate geometric model with the usual method, and it is more difficult to obtain a more accurate finite element model. To accurately simulate and analyze this complex curved surface contact process, the accuracy of the finite element model is very high. The more accurate finite element model includes hexahedral finite element model.