Methods of improving wear resistance of Automobile Gears
Traditionally, the methods to improve the wear resistance of gears are mainly to change the gear manufacturing materials or the […]
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Establishment of three-dimensional model of spiral bevel gear
1. Modeling of gear tooth surface Importing the data of tooth surface points into UG can generate tooth surface pieces.
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Wear failure of automobile gear tooth surface
In automobile gear transmission, there are many different forms of tooth surface wear with different working conditions. There are mainly
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Calculation of three-dimensional contact stress of smooth cylindrical gear
1. Equivalent stress analysis of three-dimensional contact of smooth cylindrical gear The results of three-dimensional contact equivalent stress of cylindrical
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Die analysis of spiral bevel gear forging
Whether the forging can be out of the die is an important factor that must be considered in forging. The
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Three dimensional contact boundary conditions and loading settings of smooth cylindrical gears
According to the static contact analysis principle of cylindrical gear, the passive cylindrical gear needs to be completely fixed, and
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Three dimensional contact finite element model of smooth cylindrical gear
Figure 1 shows the three-dimensional contact solid model of cylindrical gear after importing ANSYS. The general preprocessor in ANSYS is
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Prediction of pitting life of cylindrical gears
In order to verify the fatigue pitting corrosion model of cylindrical gear, the FZG cylindrical gear wear tester in the
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Tooth alignment error and tooth profile error of pit bionic large gear before test
In order to make it more convenient and intuitive to compare the measurement data of smooth big gear and pit
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Wear resistance of automotive cylindrical gears
Automobile cylindrical gear is the main component to transmit driving power. Its wear resistance directly affects the service life of
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Wear resistant coating on gear surface
Surface coating and surface coating wear-resistant materials increase the wear resistance. For example, Eagle innovations has developed a new metal
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Gear surface strengthening technology
Surface hardening treatment, such as surface quenching, shot peening and laser surface strengthening, can obtain the surface hardening layer, but
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Basic situation of automotive gear steel in China
In China’s automobile industry, the materials used for gears in the gearbox have mainly used the gear steel series of
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Research on cold forging of small module spiral bevel gear based on DEFORM-3D
Taking the small module spiral bevel gear as an example, the cold precision forging simulation research is carried out. The
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3D solid modeling of involute cylindrical gear based on CATIA
Because the process of establishing involute cylindrical gear in ANSYS is complex, CATIA, a 3D drawing software with powerful surface
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Contact problem of automobile spur gear with concave bionic shape
The two-dimensional contact finite element analysis of spur gear meshing can only reflect the change of spur gear contact stress
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Machining parameters and TCA analysis of spiral bevel gear pair
The tooth surface with good meshing performance is the basis for creating precision forging die. Therefore, the premise of using
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Dynamic reliability analysis of bevel gear considering strength degradation
Due to the influence of random factors such as stress and environment, the strength degradation process is usually a continuous
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Gear transmission system of flying vehicle
Traditional flying vehicles refer to land and air amphibious vehicles that can drive on the ground and fly in the
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Two dimensional numerical simulation of contact problem of concave bionic spur gear
The two-dimensional contact numerical simulation of smooth and concave bionic spur gears is carried out by using the finite element
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Main shape parameters of spur gear
There are four main shape parameters of spur gears: cumulative pitch error, tooth thickness error, tooth direction error and tooth
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Near field stress-strain analysis of cylindrical gear meshing interface
Based on the pressure and shear stress at the meshing interface of cylindrical gear obtained from the above analysis, the
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Tooth alignment error and tooth profile error of pit bionic pinion before test
Consistent with the smooth pinion, the pit pinion is measured with 3 teeth to grasp the shape parameters of the
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Forging feasibility of spiral bevel gear
The forging technology of straight bevel gear is gradually mature, which provides a certain technical basis for the forging of
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Basic situation of automobile gear steel abroad
In foreign countries, the carburized gear steel initially used is basically manganese steel and manganese chromium steel. For example, the
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Two dimensional contact finite element analysis of smooth spur gear
Through the three-dimensional numerical simulation of the ring sample, it is concluded that the ring sample with a certain surface
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Description of basic parameters of spiral bevel gear pair
The geometric dimension of the wheel blank is the basis for the design and processing of the spiral bevel gear
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Forging gear simulation and production verification
According to the optimized preform shape and process parameters, the other parameters are set to the same value as. Use
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Installation posture of cylindrical gear profile cutter
The chamfering of tooth profile is different from the machining of tooth surface. In order to avoid scratching the tooth
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Wear resistance test of Automobile Gears
Through the friction and wear test, the comparative experimental research between the smooth sample and nine different pit bionic ring
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Wear resistance test of concave bionic spur gear
The comparative experimental study on the wear resistance of concave and smooth spur gears is carried out by using the
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3D modeling of modified spur gear based on Pro/E
Pro/E is a parametric modeling software, which can establish the three-dimensional model of spur gear through parameterization, which greatly improves
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Tooth direction error and tooth profile error of smooth large gear before test
The smooth big gear has 24 teeth in total, which are measured by full teeth. The changes of morphological parameters
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Tooth direction error and tooth profile error of smooth pinion before test
The smooth pinion has 16 teeth in total. In this experiment, the pinion is measured with 3 teeth to grasp
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Heat treatment technology for changing gear surface
Heat treatment technology is a traditional method to improve the surface strength of materials. The heat treatment of gear material
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Classification of industrial gears and vehicle gears
According to different working conditions, gear transmission can be divided into closed type and open type; According to different use
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Classification of gear forging
There are many ways to forge gears. Gear forging can be classified as follows: According to different gear forging tools
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Industrial gear shape parameter testing instrument
Industrial gear precision measuring instrument is mainly used to detect whether the precision of industrial gear after machining meets the
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Test method of helical gear shape parameters and evaluation index of wear resistance
1. Test method The error value of main parameters of helical gear is measured by helical gear precision detector. Fix
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Meshing simulation of spiral bevel gear
In order to verify the accuracy of machining parameter calculation, the ease off difference tooth surface is constructed for contact
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Dynamic reliability of gear transmission system of flying vehicle
With the development of the concept and technology of flying vehicle, automobile gear transmission system has become one of the
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Reliability of gear transmission system of flying vehicle
Based on the modeling method of system level theory, the gear transmission system is divided into three subsystems: primary DSI
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Stress calculation of bevel gear transmission system of flying vehicle
Tooth contact fatigue failure and tooth root bending fatigue failure are one of the most common failure forms of bevel
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Objective function and optimization parameters of forging gear blank
The optimization goal is to reduce the forming load and increase the filling rate of gear forging. (1) Objective function
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Adopt advanced gear manufacturing technology
With the improvement of forging technology, many manufacturers at home and abroad have adopted precision forging technology, changing the short
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Experiment of chamfering tool for cylindrical helical gear hobbing
In order to further verify the correctness and effectiveness of the profile design method of the rake face of the
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Calculation method of cylindrical gear tooth profile and cutter profile
In the process of continuous tooth profile chamfering, the cylindrical gear rotates around the c-axis, the tool rolls with the
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Failure analysis of gear hub
It mainly analyzes the root causes from the aspects of part failure form, part design, material, processing, assembly, use and
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Failure of central transmission gear hub of bulldozer
The central transmission structure of the bulldozer developed by a company is shown in Figure 1. When the whole machine
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Variance analysis of double circular arc gear
The independent variables of the orthogonal test and the natural frequency values of the double circular arc constraint mode solved
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Modeling of modified cylindrical gear based on Pro / E and ANSYS
Cylindrical gear transmission is widely used in mechanical equipment. It has the advantages of stable transmission, small volume and strong
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Comparative analysis of tooth surface of face gear
Using the method of numerical comparison, the simulation results are accurately analyzed by calculating the normal difference between VERICUT gear
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Elastohydrodynamic lubrication contact of cylindrical gears
In order to ensure the accuracy of contact analysis, the influence law of micro morphology of tooth surface should be
Scientific
Effect of preheating treatment before carburizing on distortion of 17CrNiMo6 steel gear shaft
The traditional carburizing process is to directly heat the workpiece to the carburizing temperature during carburizing. In this paper, the
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Carburizing treatment of gear shaft considering preheating
In production, the preheating temperature and time parameters of gear shaft are more based on the experience of workers. Based
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Gear tribology theory
The theoretical research of gear tribology focuses on gear elastic hydrodynamic lubrication (EHL), gear surface morphology, micro tribology and so
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Method of changing gear material
By using materials with good wear resistance to replace the previously used gear materials, the wear resistance of the gear
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Fracture failure of automobile gear teeth
The teeth of automobile gears are equivalent to cantilever beams. The force between two meshing teeth acts along the common
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Numerical solution of machining parameters of small gear of spiral bevel gear
The numerical differentiation method is used to calculate the numerical differentiation of the formula, calculate the main direction and main
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Gear transmission classification
Gear is the main body of power transmission. Gear transmission is the most widely used transmission form in mechanical equipment.