Calculation model of meshing stiffness of hypoid gears
Fig. 1 shows the meshing coupling model of hypoid gear based on the finite element model. From the meshing diagram, […]
Fig. 1 shows the meshing coupling model of hypoid gear based on the finite element model. From the meshing diagram, […]
From the comparison of the dynamic and static transmission errors of hypoid gears, it can be seen that when the
The following is a comparison of the change law of gear mesh stiffness when the gear load is different. Here,
For the hypoid gear in the automobile drive axle, the previous research mainly focused on simulating the machining process of
In the dynamic analysis of the hypoid gear, the difference from the static analysis is that the input end of
1.Analysis type First, the static nonlinear meshing analysis is carried out. In the analysis step, the class’ static stress /
The installation deviation of hypoid gears is mainly divided into four categories. The definition of installation deviation direction is shown
When the rigidity of differential case, support bearing and support housing of drive axle hypoid gear is relatively large, their
The time-varying transmission error te (transmission error) and mesh stiffness change are the main excitation sources in the dynamic meshing
Different angular velocities are applied to the meshing model of hypoid gears, and there is no concept of velocity in
Load different resistance moments on the output end of the large gear, and the corresponding transmission error is shown in
Gear mesh generation strategy is directly related to the calculation speed and accuracy. In order to determine the finite element
The finite element method is an important method to predict the bending stress of the hypoid gear tooth root of
The effect of the installation deviation Gama of the cross angle of the hypoid gear on the fatigue stress of
The influence range of each installation deviation on fatigue parameters is shown in the figure. According to the order of
As shown in Fig. 1, the influence of the installation deviation V of the offset distance of the hypoid gear
According to the requirements of the national driving axle fatigue test standard qc/t 533-1999, the test bench as shown in
The variation of the maximum stress of the pinion root with the installation deviation is shown in Figure 1 and
An important goal of hypoid gear design is to optimize the performance of gear pair installation deviation. By measuring the
The bending stress of the tooth root of the hypoid gear based on the integral drive axle model is predicted.
Drive axle vibration often produces annoying sound, which affects the transmission efficiency of the drive axle and reduces the fatigue
As shown in Figure 1, when the axial installation position h of the hypoid gear pinion changes, the change trend
In China, the research on the fatigue life of spur gears is mainly based on the method of stress life
As shown in Figure 1, when the deviation g of the big axle of the hypoid gear changes towards the
In order to verify the accuracy of the established finite element model, the tooth root bending stress in the meshing
In China, there are few studies on the bending stress of the hypoid tooth root of the drive axle, mainly
As shown in Figure 1, the change diagram of meshing footprint during the ideal meshing process of hypoid gear is
Submit the established model to abaqus/standard solver, and finally get the finite element analysis results, as shown in Figure 1
The design of automobile drive axle is the same as the design of other parts of transmission system. It needs
The bending fatigue of hypoid gear root of drive axle is affected by many parameters, including the geometry of hypoid
In HyperMesh, the geometric entity of hypoid gear is meshed. The curvature of hypoid gear changes greatly, especially the hypoid
Figure (a) shows gleason#116 hypoid gear processing machine tool. The machine tool obtains the convex or concave surface of the
In 1981, Litvin and Gutman first proposed to use the comprehensive analysis method to determine the machining parameters of “format”
Aiming at the problem that it is difficult to obtain the tooth surface coordinates of HFT hypoid gears, this chapter
The stress state and fatigue life of hypoid gear in the main reducer of drive axle is one of the
Through ABAQUS loading characteristic analysis, the contact spots on the convex surface of the big wheel are compared with the
Parameters Offset distance E/mm Axis intersection angle σ / (°) Number of headers Z0 Number of teeth Z Initial installation
Import the hypoid gear coordinates into CATIA, use the surface function to get the gear surface of the hypoid gear,
The establishment of hypoid gear tooth surface model mainly includes the following five parts: Tool equation. The research object is
Table 1 shows the basic parameters of hypoid gears, and table 2 shows the basic parameters of large and small
The research shows that the contact and bending stresses of spur gears can be obtained by finite element method, and
From the research status of hypoid gear or spiral bevel gear transmission error at home and abroad, it can be
The mechanism of fatigue and noise generation of drive axle hypoid gear is deeply studied, and a method based on
In generating machining, the tooth surface equation is still statically indeterminate through the formula, and the incremental angle of the
The geometric model of drive axle hypoid gear is the basis of gear contact, transmission error, load and other analysis.
Munro defines the transmission error te (transmission error) as follows: the deviation between the actual position of the driven gear
Ollicon hypoid gear processing machine tool (as shown in figure (a)) is mainly composed of cutting cutter head, cutter tilt
Oricon hypoid gears are machined by end face hobbing. Figure 1 shows the gear cutting principle of the end face
Hypoid gear has the advantages of large coincidence, strong tolerance, high meshing stability, and is suitable for large intersection angle,
Cycloid hypoid gear has a series of advantages such as high processing efficiency, less equipment required, stable transmission and low
The numerical simulation of hypoid gear tooth surface, that is, the simulation of tooth surface machining, is the basis of
For cycloid hypoid gears, based on the accurate modeling of the tooth surface, the tooth geometric contact analysis, loading contact
Taking the “Austrian” cycloid hypoid gear used in the axle as the research object, the geometric parameters and cutting parameters
There is less research literature on the meshing performance analysis and active design of cycloid hypoid gears in China. The
Due to the inevitable tooth surface deviation caused by machining error and heat treatment deformation, the optimal mating tooth surface
The meshing performance analysis of hypoid gear tooth surface is based on the accurately established tooth surface model, including geometric
The tooth surface error pre correction technology can make the machined tooth surface height approach the theoretical design tooth surface,
The calculated geometric parameters and machining parameters of the wheel blank lay the foundation for the tooth surface modeling. On
Cycloid hypoid gear tooth surface geometry is complex, only its machining simulation, error sensitivity, meshing performance and tooth surface active
For cycloid hypoid gears processed by double-sided method, both sides of the tooth groove are processed at the same time,