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 […]
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
The dual frequency induction quenching process of bevel gear can be divided into induction heating process and quenching cooling process.
The current penetration heating depth is inversely proportional to the current frequency. Therefore, when the bevel gear induction heating mainly
Because the stiffness calculation of spur gears is now very mature, many literatures have given relevant regression formulas. In order
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
The most obvious feature of the induction heating process is the skin effect. When the penetration induction heating method is
The author verifies the proposed prediction method of strong tooth scraping on demaji nt5400dcg turning and milling machine. Among them,
The large modulus standard involute bevel gear with 12 modulus, 15 teeth, 20 º pressure angle and 40mm tooth width
The simulation model of electromagnetic induction heating of bevel gear includes bevel gear, induction coil and air. The numerical simulation
Another way to eliminate undercutting is the “multi space supplement” of gear design. That is, increase the tooth top of
Since the change trend of vibration response of driving wheel and driven wheel is consistent, the driving wheel is taken
CWE calculation is the most computationally intensive task in simulation. Therefore, in order to improve the simulation efficiency, this paper
The positioning of automobile gear hob should ensure that the whole aperture and end face are required to be used.
The two-dimensional chip shape is combined with the oblique cutting model to predict the cutting force at each time step.
The actual meshing state of spur gear is shown in Figure 1, and the distance from the node to the
Tooth surface friction parameters of spur gear under random error interference The time-varying friction model on the meshing line of
In order to study the bending stress of helical gear tooth root, the test will be measured under three working
The author uses the dexel based solid modeling system (module works) to realize the kinematic model of strong tooth scraping.
In order to study the vibration characteristics of spur gear pair considering the randomness of error and tooth surface friction,
As shown in Figure 1, the 3-DOF bending torsion coupling dynamic model of spur gear pair is established by using
In order to study the influence of different dynamic loading conditions on the contact area of spiral bevel gear, the
MCL ⁃ 1A helical gear wear testing machine is used for the experiment, which is driven by the spindle motor,
Take the following values for relevant parameters: Z H, and take 2 according to the tooth profile angle and helix
After the transmission test bench is assembled, the contact spot detection experiment of helical gear is carried out below. Because
In order to study the contact force variation characteristics of spiral bevel gears under dynamic meshing, the contact force variation
The mass loss rate time curve of automotive gear test materials after normalizing and isothermal annealing in 0.6mol/l NaCl solution
According to the theoretical knowledge of orthogonal helical gear, when the helical gear and helical cylindrical gear mesh, the two
The selection of gear hobbing cutting speed should consider the tool material and appropriate coating, the modulus of the processed
The size and position of the tooth surface contact area of spiral bevel gear affect the vibration, noise and bearing
The gear hobbing hob with modulus of 2, number of grooves of 12 and number of heads of 2 is
The rake angle of the gear hobbing hob is generally 0 °, and its rake face should pass through the
In the meshing process of gear hobbing, the gear hobbing hob is equivalent to the worm, so its stress condition
Before hobbing helical gear, first, prepare the combined fixture and clamp it correctly according to the relative position of each
Automobile gear, bearing and differential will produce vibration when working. Once there is a fault, the amplitude distribution of its
In order to meet the requirements of hobbing helical gear on the gear hobbing machine, the tooling fixture is designed
Before the solid modeling of helical gear in Pro/E software environment, firstly, the coordinates of discrete data points calculated in
The working condition of spiral bevel gear pair can be simulated in computer by properly preprocessing the finite element mesh
Due to the complexity of face gear tooth surface, it is very difficult to create a complete helical gear model
Due to the large number of moving axes of spiral bevel gear milling machine, there may be errors in the
When the helical gear meshes with the tool, the speed of the former at the contact point is zero. At
When deriving the helical gear equation, the main parameters of the tool need to be determined are: normal surface modulus:
The bevel gear model is analyzed by finite element method. The grid size setting, physical parameters, boundary conditions and their
The dynamic analysis of the straight bevel gear system is carried out by using romax software, and the dynamic response
According to the finite element simulation results of and axial displacement, the assembly offsets of 0.05 mm, 0.1 mm, 0.15