Digital simulation method of cylindrical gear hobbing process
The new digital simulation method of cylindrical gear hobbing process is proposed. By analyzing the position relationship between the hob […]
The new digital simulation method of cylindrical gear hobbing process is proposed. By analyzing the position relationship between the hob […]
Nominal torque T1: calculate the contact strength of cylindrical gear transmission. Generally, the power P (k, w) transmitted by driving
Using five basic equations and MATLAB software for numerical calculation, select six contact points in the direction of gear tooth
Using five basic equations and MATLAB software for numerical calculation, select six contact points in the direction of gear tooth
1. Equivalent stress analysis of three-dimensional contact of concave cylindrical gear After the calculation, the equivalent stress of the contact
Keep the contact boundary condition with smooth gear consistent with the loading setting treatment method, restrict the degrees of freedom
The three-dimensional solid model of the gear is established by CATIA. After being imported into ANSYS, a series of spherical
In order to study the influence of different modification coefficients on the strength of cylindrical gears, a group of cylindrical
The distribution of metal streamline in each step of the blank making process of cylindrical gear ring is shown in
1. Import model Through the method discussed above, we can establish the three-dimensional model of the modified cylindrical gear in
The research on Isothermal Elastohydrodynamic Lubrication of cylindrical gears does not consider the influence of time and temperature changes on
1. Equivalent stress analysis of three-dimensional contact of smooth cylindrical gear The results of three-dimensional contact equivalent stress of cylindrical
According to the static contact analysis principle of cylindrical gear, the passive cylindrical gear needs to be completely fixed, and
Figure 1 shows the three-dimensional contact solid model of cylindrical gear after importing ANSYS. The general preprocessor in ANSYS is
In order to verify the fatigue pitting corrosion model of cylindrical gear, the FZG cylindrical gear wear tester in the
Automobile cylindrical gear is the main component to transmit driving power. Its wear resistance directly affects the service life of
Because the process of establishing involute cylindrical gear in ANSYS is complex, CATIA, a 3D drawing software with powerful surface
Based on the pressure and shear stress at the meshing interface of cylindrical gear obtained from the above analysis, the
The chamfering of tooth profile is different from the machining of tooth surface. In order to avoid scratching the tooth
In order to further verify the correctness and effectiveness of the profile design method of the rake face of the
In the process of continuous tooth profile chamfering, the cylindrical gear rotates around the c-axis, the tool rolls with the
In order to ensure the accuracy of contact analysis, the influence law of micro morphology of tooth surface should be
The contact deformation in the meshing process of cylindrical gears affects the lubrication behavior of cylindrical gears, which is a
Different from the traditional chamfering method of tooth profile, the new method of continuous cutting chamfering with cutting tools is
The cylindrical helical gear (parameters are shown in Table 1) and hobbing chamfering tool (parameters are shown in Table 2)
According to the tool installation pose coordinate system, the spatial hobbing motion coordinate system of tool and cylindrical gear is
The contact characteristics of the cylindrical gear at each meshing time are equivalent to the cylindrical contact with corresponding curvature.
The profile of hobbing chamfering tool and the profile of the end face of the processed cylindrical gear are no
Cylindrical gear is widely used in high-speed and heavy-duty occasions because of its compact structure, strong bearing capacity and stable
In order to verify the machining accuracy of the studied process, taking the machining of large module cylindrical gear as
The structure of the gear turning cutter is similar to that of the helical cylindrical gear. The three-dimensional shape of
Because there are many and complex influencing factors in the milling process, there is no theoretical formula to directly calculate
The gear processing indexing mechanism device is designed on the special machine tool for variable hyperbolic arc tooth line cylindrical
In the finite element analysis of the whole machine, the contact between parts has a great impact on the analysis
In finite element analysis, the solution efficiency is low and the time cost is greatly increased because the machine tool
The special machine tool for variable hyperbolic arc tooth line cylindrical gear is designed based on the principle of spatial
With the rapid development of modern industry, new requirements are put forward for mechanical transmission devices in the manufacturing field.
The blank with lower boss needs to be obtained by large bar cutting, which not only wastes man hours, but
The blank material is DEFORM-3D material library AISI-4120, the temperature is 850 ℃, the temperature effect in heat conduction and
Figure 1 shows the helical cylindrical gear in the automobile gearbox. The normal surface modulus M = 2.5mm, the number
All teeth on helical cylindrical gears are the same and have unified characteristics. The normal tooth profile will be generated
The precision forming technology of cylindrical gear comes from Germany. As early as the 1950s, due to the lack of
In the cylindrical gear transmission system of hybrid electric vehicle, due to the need of lubrication and the manufacturing accuracy
Fixed grinding speed vs = 20.3 M / s and cylindrical gear steel speed VW = 1200 m / min.
This paper studies the strengthening effect of cylindrical gear steel grinding on the surface properties of 30crmnti material. The main
Fixed cylindrical gear steel grinding speed vs = 20.3 M / s, cylindrical gear steel grinding depth AP = 50
Fixed cylindrical gear steel speed VW = 1200 mm / min, grinding depth AP = 50 μ m. The test
The main causes of grinding residual stress error of cylindrical gear steel are as follows: (1) Idealized value of material
The gear transmission in which cylindrical gears and bevel gears mesh with each other is called face gear transmission. As
The gear transmission used to transmit power and motion between parallel shafts. The transmission power and speed of cylindrical gear
The biting conditions of the above rolling ring can only ensure that the cylindrical gear enters the driving roller for
In the meshing transmission of cylindrical gear mechanism, there is a large tangential relative sliding speed along the tooth length
Name of each part of cylindrical gear (take spur gear as an example): l) Pitch circle diameter d ‘, graduation
Cylindrical gear is an important type of mechanical gear, and it is the most common gear style. When the gear
Helical cylindrical gear is a kind of helical gear. It is called helical cylindrical gear only when the two shafts
The ring rolling ratio is the most important parameter in the forming process parameters. It shows the pRing rolling ratio
Cylindrical gear biting is a very complex process. The specific biting model is shown in Figure 1. In the figure,
Ring rolling, in fact, can be regarded as a rolling process, which mainly carries out continuous local compression deformation on
The development of traditional cylindrical gear forming technology is a process through repeated tests by operators and years of experience
The purpose of pre heat treatment is to obtain uniform and fine structure and completely eliminate stress. The pre heat