Interference analysis is one of the important contents of virtual assembly design of automobile rack and pinion steering gear. After […]
Virtual assembly of automobile rack and pinion steering gear refers to that in the virtual environment, designers can easily establish
The basic parameters of automobile steering gear mainly include the number of teeth, modulus, pressure angle, tooth width, displacement coefficient
Foreign tests have proved that the supercooled austenite decomposition products during surface quenching of carburized steel are the main reason
1. Test purpose Our company adopts high-grade and high-quality zocrmntih steel with 6 bandwidths according to the steel factory standard.
1. Introduction to truck gear processing The cold working routes of the three parts are basically the same: forging –
With the continuous development of the automobile industry, enterprises gradually adopt light and fuel-efficient front wheel drive vehicles to replace
1. Analysis of fracture morphology of aluminum alloy automobile gear In order to analyze the fracture failure cause of aluminum
The tooth surface is reconstructed according to the numerical simulation results under different cold shaping methods. Compared with the other
Through gene analysis and basic performance experiment of automobile gear materials, it is very important to master the basic parameters
1. Test purpose Verify the influence of different pre heat treatment methods on the deformation of final carburized helical cylindrical
Figure 1 shows the equivalent stress distribution of spur gear under different cold shaping methods. During full tooth shaping, the
The fatigue damage of automobile gear tooth surface is caused by the repeated action of automobile gear on the tensile
Through the speed field of precision forging of spiral bevel gear, the flow of metal blank in the forming process
As shown in the table, the forging deformation force of open die forging and non flash die forging of spiral
The dual frequency induction quenching process of bevel gear includes electromagnetic induction heating process and quenching cooling process. The temperature
The cutting parameters of gear hob include cutting depth, cutting speed and axial feed. The determination of these parameters should
The automobile gear is in the state of continuous load operation. There are both rolling and sliding between the meshing
Automotive automatic transmission lubricating oil (ATF) not only meets the lubrication of automotive helical gears and bearings, but also undertakes
The best effect of shot peening strengthening treatment of automobile gears is affected by the interaction of different conditions. The
The strength of automobile gear is mainly the bending fatigue strength and tooth surface contact fatigue strength of gear. Figure
Modulus is an important parameter of gear. When selecting automobile gear modulus, factors such as strength, noise, lightweight and processing
In previous studies, the ideal model without error is used in the numerical simulation of cold shaping of spur gear.
(1) Mold and blank materials can be directly selected from the material library of DEFORM software. The mold material is
The mesh generation program of DEFORM-3D can divide the geometry into tetrahedral elements, and its mesh generation methods can be
The forging deformation force P of spiral bevel gear is determined by empirical formula: Where: C – shape complexity coefficient
In order to facilitate calculation, the involute tooth profile of spiral bevel gear is simplified into linear tooth profile according
Sizing belt is one of the key process parameters to ensure the forming of spur gears. Whether the length of
The figure shows the new precision forging die structure of spiral bevel gear. The working part of the die is
By analyzing the forming characteristics of open die forging and the shape of spiral bevel gear forging, the plastic deformation
The figure is the area differential diagram of the large end of the tooth profile of spiral bevel gear. Let
As can be seen from Figure 1, the shape of spiral bevel gear is relatively complex, especially its tooth shape
1. Design principle of gear induction coil The size of the gear module plays an almost decisive role in the
ANSYS software itself has powerful meshing function, so ANSYS software is used for meshing. Import the 3D model built in
Determining the forging deformation force is a very important part of the metal plastic forming theory. The research on the
Some parts need teeth as a benchmark. For example, the time difference is generated by controlling the angle of the
The same parameters as the grinding test are used for simulation, and the simulation results are shown in Figure 1.
The precision forging blank size of spiral bevel gear is determined according to the principle that the forging volume is
The new process flow of precision forging of spiral bevel gear is as follows: blanking → less and no oxidation
The splitting angle thickness is one of the important process parameters in the design of tooth concave die, which has
Die tooth profile design is the key to the precision forging die design of spiral bevel gear. The basic basis
The tooth profile design of spiral bevel gear forging is an important step in the design of gear forging die.
The forming process of open die forging of spiral bevel gear is blanking → less and no oxidation heating →
The precision forging of spiral bevel gear is carried out under the environment of high temperature and high pressure, and
According to the deformation of metal, the precision die forging of spiral bevel gear can be divided into open die
1. Part manufacturability analysis and forming process design Figure 1 shows the forging of straight bevel gear, which is made
1. Process analysis of parts Automobile differential planetary gear is an important transmission part in automobile, and its material is
The grinding test of spiral bevel gear was carried out on gleason-600g CNC gear grinding machine. The single factor test
The spiral bevel gear is processed according to the principle of “imaginary production wheel”, that is, through the meshing between
The whole meshing process of a single pair of teeth is divided into 30 positions to complete the calculation, and
In this paper, ANSYS software is used to dynamically simulate the dual frequency induction heating process of bevel gear, involving
The grinding process of spiral bevel gear is a very complex material removal process. In order to simplify the complexity
The switching time of medium and high frequency current is involved in the time-sharing of dual frequency induction heating of
Taking a pair of spiral bevel gears processed by SGM (large wheel generation method and small wheel deformation method) as
Considering the random error interference, the vibration characteristics of spur gear transmission in two cases are compared and analyzed: ①
Spiral bevel gear is widely used in the transmission system of heavy vehicles with the advantages of high transmission ratio,
Before the double frequency induction heating experiment of bevel gear, it is necessary to build the experimental platform, process and
The double frequency heating experiment and numerical simulation of bevel gear are carried out with the determined process parameters. The
The experimental scheme of dual frequency induction heating of bevel gear is as follows: install the medium and high frequency
After induction heating, the bevel gear will be quenched and cooled. Different microstructure distribution can be obtained by using different
