Bevel gear closed hot die forging preform taper
Shu Qifu once put forward the concept of “equivalent blank” to study the influence of taper on the forming process […]
Shu Qifu once put forward the concept of “equivalent blank” to study the influence of taper on the forming process […]
1.Load stroke curve Figure 1 shows the load stroke curve of preforms with different cold precision forging quantities according to
The equivalent stress distribution diagram can clearly show the equivalent stress distribution in the bevel gear blank, so that the
By analyzing the equivalent stress distribution obtained from each group of simulation experiments, it is found that the equivalent stress
The role of bevel gear die in the process of metal plastic forming is huge. In the process of metal
Different bevel gear die structures will directly affect the metal flow, thus affecting the load required in the forming process.
With the rapid development of finite element numerical simulation technology, numerical simulation technology is more and more used in the
As shown in the figure, the equivalent stress distribution diagram corresponding to different finishing quantities at the end of cold
Adopting the compound forming process of hot forging and cold finishing the tooth shape can eliminate the defects of oxidation
The size of the outer shunt gap is determined by the distance between the lower end face of the upper
The figure shows the relationship curve of forming force corresponding to the finishing amount of bevel gear tooth blank. As
In hot precision forging of driven bevel gear, the choice of die shape and size is very important. It not
Compared with mechanical press, friction press has no fixed bottom dead center, convenient installation and debugging of die and less
The solution method of the natural frequency of the system is introduced, and the natural frequency of the bevel gear
In 1997, Professor Wang Xibin of Beijing University of technology conducted an experimental study on the grinding surface residual stress
With grinding speed vs = 20.3 M / s and grinding depth AP = 50 μ m. The speed of
In the process of mechanical thermal coupling analysis, it is necessary to change from thermal analysis of temperature field simulation
The gear transmission in which cylindrical gears and bevel gears mesh with each other is called face gear transmission. As
Helical bevel gear refers to the bevel gear whose tooth line on the crown wheel is a straight line that
Principle The teeth and grooves of bevel gears are contractive, that is, they are wide at the big end and
Firstly, the hobbing principle is used to make the processed bevel gear and the imaginary shovel gear do the relative
Bevel gear is mainly used for transmission where two shafts intersect. The included angle between the two shafts is usually
Bevel gear is also called bevel gear, bevel gear. Used for transmission between intersecting shafts. Compared with cylindrical gears, it
Swing rolling is a plastic forming method that rotates and swings on the bevel gear blank according to a certain
Material quality is affected by multiple factors. Different origin, smelting methods, quality categories and supply forms of truck bevel gear
1. Test purpose Verifying the rationality of bevel gear process is an effective guarantee to reduce the heat treatment deformation
The dual frequency induction quenching process of bevel gear includes electromagnetic induction heating process and quenching cooling process. The temperature
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
In this paper, ANSYS software is used to dynamically simulate the dual frequency induction heating process of bevel gear, involving
The switching time of medium and high frequency current is involved in the time-sharing of dual frequency induction heating of
Before the double frequency induction heating experiment of bevel gear, it is necessary to build the experimental platform, process and
It has the advantages of compact structure and stable operation, and is the most widely used mechanical transmission system. As
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
The dual frequency induction quenching process of bevel gear can be divided into induction heating process and quenching cooling process.
1. Assumptions The numerical analysis of the induction heating process of bevel gear by using the finite element software ANSYS
The current penetration heating depth is inversely proportional to the current frequency. Therefore, when the bevel gear induction heating mainly
As can be seen from Fig. 1a) and Fig. 1D), a more uniform temperature field model is obtained when the
The dual frequency induction heating process is applied to obtain a more uniform temperature field model of bevel gear. There
The dual frequency induction electromagnetic thermal coupling mode of bevel gear is analyzed, and the mode of alternating medium and
Combined with the characteristics of medium and high frequency induction heating, a dual frequency induction heating process is proposed to
Firstly, the simulation scheme is formulated for the numerical simulation of double frequency induction heating of bevel gear, the problems
The most obvious feature of the induction heating process is the skin effect. When the penetration induction heating method is
The large modulus standard involute bevel gear with 12 modulus, 15 teeth, 20 º pressure angle and 40mm tooth width
In the process route of gear processing, generally after gear finishing, the surface induction quenching is required to improve the
The simulation model of electromagnetic induction heating of bevel gear includes bevel gear, induction coil and air. The numerical simulation
In the surface hardening technology of bevel gear, induction heating quenching is one of the four basic processes. Induction heating
In recent years, with the development of equipment manufacturing industries such as transportation, aviation and construction machinery, the total amount
1. Fine design of processing adjustment parameters The existing tooth surface processing design and modification methods are: Based on the
1. Gear cutting processing For the gear cutting processing of Gleason spiral bevel gear, “five knife method” has always occupied
Spiral bevel gear is an important transmission part widely used in vehicle, aircraft, machine tool, industrial reducer and other machine
This paper studies the conjugate curve bevel gear, demonstrates the basic properties of spatial conjugate curve, puts forward the tooth
The bevel gear model is analyzed by finite element method. The grid size setting, physical parameters, boundary conditions and their
The design theory and design method of pure rolling contact conjugate curve bevel gear have been discussed. However, in the
For a pair of bevel gears, to maintain pure rolling contact means that there is no relative sliding motion between
In order to consider the influence of torque on the dynamic response of central transmission bevel gear, keep the input
After the natural frequency and vibration mode of bevel gear are determined, the resonance speed diagram shown in the figure
At present, there are two kinds of gear systems in China, Gleason system and Oricon system. The tooth line made