Simulation effect drawing of spur bevel gear
Due to the particularity of the forming process of rotary forging, it takes a long time to calculate in a […]
Due to the particularity of the forming process of rotary forging, it takes a long time to calculate in a […]
The shape of straight bevel gear is relatively complex, and its surface is basically composed of curves and curved surfaces.
The establishment of straight bevel gear model is an important link in the preprocessing process of finite element simulation. A
In the figure, a is the tooth direction error diagram of the pit type pinion. Compared with before the test,
The pre punching process is to prepare for the punching process and reserve the punching skin thickness for the punching
The pitch cone angle is a very important parameter in the geometry of spiral bevel gear, which is directly related
The original blank of spur bevel gear is determined according to the forging shape, size, forging method and the required
The results of experimental mechanics research methods come directly or indirectly from the measured data, which reduces or avoids many
The metal plastic forming process of spur bevel gear is a complex deformation process. The material characteristics, deformation speed, temperature,
After optimizing the process, the effective hardened layer depth of the tooth root is 1.4mm, as shown in Figure 1.
Research objectives By changing the parameters of the straight bevel gear blank, the forming force energy relationship and the law
From the figure, it can be seen that in the simulation of cold precision forging process, the equivalent stress distribution
Variation law of residual strength of planetary gears in flight vehicle transmission system. Taking the bending fatigue residual strength of
In order to study the influence of different modification coefficients on the strength of cylindrical gears, a group of cylindrical
In order to facilitate the comparison with the parameters before the test, the smooth big gear after the test also
The shaping process is forging, so that the blank is in good agreement with the ring rolling die, bite in
The size of automobile gear hob mainly includes diameter and length. The diameter of automobile gear hob usually depends on
The temperature field distribution of spiral gear die is the key factor of the life of spiral gear die. The
After the simulation, open the post-processing option in the DEFORM-3D main window to view the simulation results. The post-processing window
In the high-speed and heavy-duty gear transmission of automobile gears, the pressure in the meshing area of the tooth surface
Determination of die wear and forming load test scheme determination of die wear and forming load test scheme aiming at
The distribution of metal streamline in each step of the blank making process of cylindrical gear ring is shown in
For the gear transmission system of flying vehicle, the meshing times of each gear in the system are different at
1. Import model Through the method discussed above, we can establish the three-dimensional model of the modified cylindrical gear in
In order to compare the changes of tooth direction error and tooth shape error of smooth pinion before and after
After the calculation of pre punching process is completed, enter the forming module of software pre-processing, add punching steps and
Using the “model” module in UG, a simple model of spiral bevel gear die is drawn. The steps are as
The research on Isothermal Elastohydrodynamic Lubrication of cylindrical gears does not consider the influence of time and temperature changes on
The metal material used in the blank simulation of driven spiral bevel gear is low carbon steel 20CrMnTi. The chemical
Fatigue pitting of the tooth surface of automobile gear is a common failure form of closed soft tooth surface gear
The gear transmission system of flying vehicle studied in this paper is composed of one-stage planetary gear train and two-stage
The structural parameters and test parameters of spur gear are as follows: the material of spur gear is 20CrMnTi, the
1. Modeling of gear tooth surface Importing the data of tooth surface points into UG can generate tooth surface pieces.
In automobile gear transmission, there are many different forms of tooth surface wear with different working conditions. There are mainly
1. Equivalent stress analysis of three-dimensional contact of smooth cylindrical gear The results of three-dimensional contact equivalent stress of cylindrical
According to the static contact analysis principle of cylindrical gear, the passive cylindrical gear needs to be completely fixed, and
Figure 1 shows the three-dimensional contact solid model of cylindrical gear after importing ANSYS. The general preprocessor in ANSYS is
In order to make it more convenient and intuitive to compare the measurement data of smooth big gear and pit
Automobile cylindrical gear is the main component to transmit driving power. Its wear resistance directly affects the service life of
Because the process of establishing involute cylindrical gear in ANSYS is complex, CATIA, a 3D drawing software with powerful surface
The tooth surface with good meshing performance is the basis for creating precision forging die. Therefore, the premise of using
Due to the influence of random factors such as stress and environment, the strength degradation process is usually a continuous
Based on the pressure and shear stress at the meshing interface of cylindrical gear obtained from the above analysis, the
Consistent with the smooth pinion, the pit pinion is measured with 3 teeth to grasp the shape parameters of the
Through the three-dimensional numerical simulation of the ring sample, it is concluded that the ring sample with a certain surface
The geometric dimension of the wheel blank is the basis for the design and processing of the spiral bevel gear
According to the optimized preform shape and process parameters, the other parameters are set to the same value as. Use
The chamfering of tooth profile is different from the machining of tooth surface. In order to avoid scratching the tooth
Pro/E is a parametric modeling software, which can establish the three-dimensional model of spur gear through parameterization, which greatly improves
The smooth big gear has 24 teeth in total, which are measured by full teeth. The changes of morphological parameters
The smooth pinion has 16 teeth in total. In this experiment, the pinion is measured with 3 teeth to grasp
In order to verify the accuracy of machining parameter calculation, the ease off difference tooth surface is constructed for contact
Based on the modeling method of system level theory, the gear transmission system is divided into three subsystems: primary DSI
Tooth contact fatigue failure and tooth root bending fatigue failure are one of the most common failure forms of bevel
The optimization goal is to reduce the forming load and increase the filling rate of gear forging. (1) Objective function
In order to further verify the correctness and effectiveness of the profile design method of the rake face of the
In the process of continuous tooth profile chamfering, the cylindrical gear rotates around the c-axis, the tool rolls with the
It mainly analyzes the root causes from the aspects of part failure form, part design, material, processing, assembly, use and
The central transmission structure of the bulldozer developed by a company is shown in Figure 1. When the whole machine
The independent variables of the orthogonal test and the natural frequency values of the double circular arc constraint mode solved