Failure form and mechanism of automobile gear
The automobile gear is in the state of continuous load operation. There are both rolling and sliding between the meshing […]
Scientific
Scientific
Scientific
Effect of oil on fatigue strength, life and wear of automotive helical gears
Automotive automatic transmission lubricating oil (ATF) not only meets the lubrication of automotive helical gears and bearings, but also undertakes
Scientific
Main factors affecting shot peening effect of Automobile Gears
The best effect of shot peening strengthening treatment of automobile gears is affected by the interaction of different conditions. The
Scientific
Bending fatigue damage mechanism and materials of Automobile Gears
The strength of automobile gear is mainly the bending fatigue strength and tooth surface contact fatigue strength of gear. Figure
Scientific
Chinese and foreign automotive gear materials and gear process parameters
Modulus is an important parameter of gear. When selecting automobile gear modulus, factors such as strength, noise, lightweight and processing
Scientific
Establishment of finite element model of spur gear for truck
In previous studies, the ideal model without error is used in the numerical simulation of cold shaping of spur gear.
Scientific
Setting of initial conditions for numerical simulation of precision forging of spiral bevel gear
(1) Mold and blank materials can be directly selected from the material library of DEFORM software. The mold material is
Scientific
Mesh generation of numerical simulation of precision forging of spiral bevel gear
The mesh generation program of DEFORM-3D can divide the geometry into tetrahedral elements, and its mesh generation methods can be
Scientific
Solving forging forming force of spiral bevel gear by empirical formula method
The forging deformation force P of spiral bevel gear is determined by empirical formula: Where: C – shape complexity coefficient
Scientific
Simplification of tooth profile of spiral bevel gear
In order to facilitate calculation, the involute tooth profile of spiral bevel gear is simplified into linear tooth profile according
Scientific
Influence of sizing belt length L on spur gear forming
Sizing belt is one of the key process parameters to ensure the forming of spur gears. Whether the length of
Scientific
Structure of new precision forging die for spiral bevel gear
The figure shows the new precision forging die structure of spiral bevel gear. The working part of the die is
Scientific
Solving the forging force of spiral bevel gear by open die forging
By analyzing the forming characteristics of open die forging and the shape of spiral bevel gear forging, the plastic deformation
Scientific
Calculation of tooth profile volume of spiral bevel gear
The figure is the area differential diagram of the large end of the tooth profile of spiral bevel gear. Let
Scientific
Calculation of curved tooth length of spiral bevel gear
As can be seen from Figure 1, the shape of spiral bevel gear is relatively complex, especially its tooth shape
Scientific
Determination of induction coil structure of bevel gear
1. Design principle of gear induction coil The size of the gear module plays an almost decisive role in the
Scientific
Mesh generation of geometric model of involute bevel gear
ANSYS software itself has powerful meshing function, so ANSYS software is used for meshing. Import the 3D model built in
Scientific
Study on precision forging forming force of spiral bevel gear
Determining the forging deformation force is a very important part of the metal plastic forming theory. The research on the
Scientific
Tooth positioning of automobile gear parts
Some parts need teeth as a benchmark. For example, the time difference is generated by controlling the angle of the
Scientific
Simulation analysis of spiral bevel gear grinding
The same parameters as the grinding test are used for simulation, and the simulation results are shown in Figure 1.
Scientific
Precision forging blank of spiral bevel gear
The precision forging blank size of spiral bevel gear is determined according to the principle that the forging volume is
Scientific
Drawing up of precision forging drawing of spiral bevel gear
The new process flow of precision forging of spiral bevel gear is as follows: blanking → less and no oxidation
Scientific
Effect of splitting angle thickness t on the forming of spur gear
The splitting angle thickness is one of the important process parameters in the design of tooth concave die, which has
Scientific
Tooth profile design of die for spiral bevel gear forging
Die tooth profile design is the key to the precision forging die design of spiral bevel gear. The basic basis
Scientific
Tooth profile design of spiral bevel gear forging
The tooth profile design of spiral bevel gear forging is an important step in the design of gear forging die.
Scientific
Open die forging of spiral bevel gear
The forming process of open die forging of spiral bevel gear is blanking → less and no oxidation heating →
Scientific
Lubrication of precision forging without flash of spiral bevel gear
The precision forging of spiral bevel gear is carried out under the environment of high temperature and high pressure, and
Scientific
Design of new forging die for spiral bevel gear
According to the deformation of metal, the precision die forging of spiral bevel gear can be divided into open die
Scientific
Warm forging die for straight bevel gear
1. Part manufacturability analysis and forming process design Figure 1 shows the forging of straight bevel gear, which is made
Scientific
Precision forging die for automobile planetary gear
1. Process analysis of parts Automobile differential planetary gear is an important transmission part in automobile, and its material is
Scientific
Analysis of grinding test results of spiral bevel gear
The grinding test of spiral bevel gear was carried out on gleason-600g CNC gear grinding machine. The single factor test
Scientific
Grinding particle trajectory of spiral bevel gear
The spiral bevel gear is processed according to the principle of “imaginary production wheel”, that is, through the meshing between
Scientific
Analysis of calculation results of finite element analysis model of spiral bevel gear
The whole meshing process of a single pair of teeth is divided into 30 positions to complete the calculation, and
Scientific
Unit selection of geometric model of involute bevel gear
In this paper, ANSYS software is used to dynamically simulate the dual frequency induction heating process of bevel gear, involving
Scientific
Trajectory of abrasive particles in ordinary surface grinding of spiral bevel gear
The grinding process of spiral bevel gear is a very complex material removal process. In order to simplify the complexity
Scientific
Double frequency induction heating of bevel gear
The switching time of medium and high frequency current is involved in the time-sharing of dual frequency induction heating of
Scientific
Establishment of LTCA finite element analysis model of spiral bevel gear
Taking a pair of spiral bevel gears processed by SGM (large wheel generation method and small wheel deformation method) as
Scientific
Influence of randomness of tooth surface friction parameters on vibration characteristics of spur gears
Considering the random error interference, the vibration characteristics of spur gear transmission in two cases are compared and analyzed: ①
Scientific
Experiment on grinding surface morphology of spiral bevel gear
Spiral bevel gear is widely used in the transmission system of heavy vehicles with the advantages of high transmission ratio,
Scientific
Double frequency induction heating experimental equipment for bevel gear
Before the double frequency induction heating experiment of bevel gear, it is necessary to build the experimental platform, process and
Scientific
Analysis of experimental results of double frequency induction heating of bevel gear
The double frequency heating experiment and numerical simulation of bevel gear are carried out with the determined process parameters. The
Scientific
Experimental scheme of double frequency induction heating for bevel gear
The experimental scheme of dual frequency induction heating of bevel gear is as follows: install the medium and high frequency
Scientific
Simulation and analysis of microstructure field in quenching and cooling process of bevel gear
After induction heating, the bevel gear will be quenched and cooled. Different microstructure distribution can be obtained by using different
Scientific
Initial conditions of dual frequency induction quenching process of bevel gear
The dual frequency induction quenching process of bevel gear can be divided into induction heating process and quenching cooling process.
Scientific
Influence of bevel gear induction heating current frequency
The current penetration heating depth is inversely proportional to the current frequency. Therefore, when the bevel gear induction heating mainly
Scientific
Accuracy verification of finite element calculation of meshing stiffness of spiral bevel gear
Because the stiffness calculation of spur gears is now very mature, many literatures have given relevant regression formulas. In order
Scientific
Influence of bevel gear on dual frequency induction heating process
As can be seen from Fig. 1a) and Fig. 1D), a more uniform temperature field model is obtained when the
Scientific
Parameter analysis of double frequency induction heating of bevel gear
The dual frequency induction heating process is applied to obtain a more uniform temperature field model of bevel gear. There
Scientific
Dual frequency induction electromagnetic thermal coupling mode of bevel gear
The dual frequency induction electromagnetic thermal coupling mode of bevel gear is analyzed, and the mode of alternating medium and
Scientific
Analysis of induction heating process of bevel gear
The most obvious feature of the induction heating process is the skin effect. When the penetration induction heating method is
Scientific
Cutting force experiment and result analysis of cylindrical gear scraping
The author verifies the proposed prediction method of strong tooth scraping on demaji nt5400dcg turning and milling machine. Among them,
Scientific
Establishment of geometric model of involute bevel gear
The large modulus standard involute bevel gear with 12 modulus, 15 teeth, 20 º pressure angle and 40mm tooth width
Scientific
Simulation model of electromagnetic induction heating of bevel gear
The simulation model of electromagnetic induction heating of bevel gear includes bevel gear, induction coil and air. The numerical simulation
Scientific
Automobile gear hob multi space supplement to reduce undercutting
Another way to eliminate undercutting is the “multi space supplement” of gear design. That is, increase the tooth top of
Scientific
Influence of random error on vibration characteristics of spur gear
Since the change trend of vibration response of driving wheel and driven wheel is consistent, the driving wheel is taken
Scientific
The scraping movement of cylindrical gear is realized by superposition of cutting force
CWE calculation is the most computationally intensive task in simulation. Therefore, in order to improve the simulation efficiency, this paper
Scientific
Axial cutting positioning of automobile gear hob
The positioning of automobile gear hob should ensure that the whole aperture and end face are required to be used.
Scientific
Calculation of cutting force of cylindrical gear scraping motion
The two-dimensional chip shape is combined with the oblique cutting model to predict the cutting force at each time step.
Scientific
Actual meshing state of spur gear
The actual meshing state of spur gear is shown in Figure 1, and the distance from the node to the
Scientific
Random error of tooth surface friction parameters of spur gears
Tooth surface friction parameters of spur gear under random error interference The time-varying friction model on the meshing line of