Time varying meshing stiffness of hypoid gear of automobile drive axle
The previous gear meshing model is based on empirical design formula or gear geometric meshing analysis. With the improvement of […]
The previous gear meshing model is based on empirical design formula or gear geometric meshing analysis. With the improvement of […]
1. Effect of torque on coincidence degree Calculate the large wheel torque as 1000 n respectively · m、2 000 N
The meshing position, meshing force, action direction and meshing stiffness of hypoid gear all change with time period. In the
Relevant parameters of hypoid gear. It is defined that the axis of the small wheel is parallel to the x-axis
In the dynamic modeling and analysis of hypoid gear system, the meshing relationship of hypoid gear is treated as spring
1. Cutter compensation heat treatment distortion The tooth profile of hypoid gear is complex, which has the problems of difficult
1. Test purpose In order to more clearly understand the influence of the relative helix angle error of the driving
In the process of heat treatment, heating and cooling of hypoid gear, due to the uneven thermal stress and tissue
The hypoid gear transmission studied consists of a small hypoid gear and a large hypoid gear. Due to the complex
Hypoid gear is a key part in the transmission system of automobile drive axle. Its tooth surface meshing quality directly
Hypoid gear is widely used in aviation, automobile and other fields. As an important index to predict its dynamic performance,
Hypoid gear is a bevel gear with central axis offset. The tooth surface surface of this type of gear is
At 3 000 n · The equivalent time-varying meshing parameters of hypoid gear in one cycle are calculated according to
The transmission error curves obtained by finite element method and classical TCA method are compared to verify the correctness of
According to the established contact fatigue finite element simulation model of hypoid gear transmission system, the finite element simulation software
Gear machining usually has direct generating method and indirect generating method. The direct generation method is to make the cutting
Spiral bevel gears and hypoid gears are on hypoid machine tools. The design principle of this machine tool is shown
The FH hypoid gear is still used as an example, and the basic parameters of the gear used in the
According to the definition of tooth surface error in Chapter 4, it is used to represent the error between the
The position of the instantaneous center of motion in the inertial system can be kept unchanged and the transmission is
In order to obtain the ideal conjugate surface of the small wheel, according to the theory of the big wheel,
In addition to the change of cutter and cutter head parameters, the change of machine tool setting parameters will also
Preset transmission error curve The vibration and noise generated by gear meshing mainly come from the transmission error of gear,
The influence of five parameters of cutter and cutter head on the tooth surface is analyzed, including tooth profile angle,
In order to improve the working performance of FH hypoid gears, a ease off active design method for hypoid gears
90 points are selected to reflect the overall error of the tooth surface. 9 points are evenly distributed in the
According to the hypoid gear model, the sensitivity of tooth surface errors at different positions to various machining parameters is
The FH hypoid gear of high performance drive axle is taken as the research object. The tooth surface modeling, tooth
When the gear rotates in the forward direction, the concave surface of the small wheel drives the convex surface of
As the tooth surface of FH hypoid gear is relatively complex, it is difficult to mesh directly on the tooth
Taking the FH hypoid gear in the above section as an example, according to the gear parameters, the full tooth
According to Hertz contact theory, the elastic deformation of tooth surface increases with the increase of contact stress when the
The modeling method of FH hypoid gear is shown in Fig. 1 The two tooth surfaces are assembled in the
After meshing, the preprocessing file is imported into ABAQUS and set as follows: (1) Material definition: the material parameters of
The detailed steps of solving the elliptic boundary and contact line of the instantaneous contact between two tooth surfaces based
Face milling (FM) and face hobbing (FH) are widely used in machining bevel gears, hypoid gears and other complex curved
The FH hypoid gear is mainly studied. Firstly, the tooth surface modeling is carried out by cutting simulation, and the
There are a series of performance requirements in gear working process, such as tooth surface bearing capacity, installation tolerance and
In the 1940s, Gleason company Ernest wildhaber proposed the pitch surface model of hypoid gears, which made the model become
TCA is to use computer simulation to analyze the contact marks and transmission error curves of gear teeth under no
There are two kinds of machining methods for hypoid gears, one is to use single index end face milling Face
The imaginary profile wheel is composed of the path of the blade in the virtual machining process, and the number
The tooth surface of hypoid gear is more complex, and it is sensitive to the changes of tool and cutter
With the rapid growth of China’s automobile consumption market, China has become a big automobile production and marketing country. Therefore,
The spiral bevel gear and hypoid gear are important parts in the transmission devices of automobile, tractor, sewing machine, engineering
It can be seen from the calculation model of gear mesh stiffness that before calculating the gear mesh stiffness under
Compared with spiral bevel gear drive, hyperbolic gear drive has the following advantages: (1) In the working process, there is
The offset is positive for cases 1 and 4; negative for cases 2 and 3 (Fig. 10). The spiral pinion
6 rendering tooth. The analysis of tooth profile based on the number distribution on the direction of the face width
Hypoid gears manufactured in face hobbing process continuous-indexing or single face milling process indexing. In face milling process the blades
1 Introduction. L-can hypoid Gear Design System design element gear tooth profile and calculate overall strength and so on. Hypoid
The crowning seen in the ease-off results in the contact zone is located within the boundaries of the gear tooth.
Most manufactured hypoid gears carburized steel and undergo case hardening a surface hardness of 60 Rockwell C (HRC) and core
Given the distortions mentioned systems tapereddepth tooth flanks feel compared to conjugate coupling, can define a possible contact lines would
Hypoid gears are the model of leverage. If two axes located in space and the task is motion and torque
Bevel gears are used to change the direction of a shaft’s rotation. Bevel gears have teeth that are available in