Mixed elastohydrodynamic lubrication model of helical gear tooth surface
The friction coefficient between two meshing tooth surfaces has an important influence on the magnitude of tooth surface friction, so […]
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Scientific
Stress analysis of cylindrical gear teeth
Nominal torque T1: calculate the contact strength of cylindrical gear transmission. Generally, the power P (k, w) transmitted by driving […]
Scientific
Residual stress of typical wheel blank material of straight bevel gear
Aluminum alloy 7075-t7451 is selected as the material for splitting the wheel blank of straight bevel gear. This material is […]
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New method of hypoid gear design
According to the Gleason algorithm, the mathematical model of hypoid gear always has 16 independent equations, and its central axis […]
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Time varying contact line characteristics of helical gears
The influence curve of axial coincidence degree on contact line length calculated by this algorithm is shown in Figure 1. […]
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Cutting force and parameter optimization of spiral bevel gear NC milling machine
The research content provides a reference for improving the cutting efficiency of spiral bevel gear milling machine, reasonably selecting the […]
Scientific
Establishment of time-varying contact line model algorithm for helical gears
For helical gears, the whole coincidence degree is greater than 2, which means that at least 2 tooth pairs are […]
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Mechanism of vibration and noise of spur gears
The causes of spur gear vibration and noise are complex, and there are many sources. It has always been a […]
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Formation mechanism of residual height on tooth surface of spiral bevel gear
As shown in the figure, spiral bevel gear milling machines mostly use disk milling cutters, and multiple groups of blades […]
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Time varying contact line and time varying tooth surface friction in multi tooth meshing of helical gears
The time variation of contact wire is one of the important characteristics of helical gear transmission. The change of the […]
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Influence of backlash and stiffness of gear support shaft on dynamic contact stress of helical gear
The contact process of helical gear in the movement process is a highly nonlinear problem, and its contact strength is […]
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Calculation results and analysis of static contact of helical gear
Through the general post processor, we can view and analyze the solution results, observe various displacement, stress and other cloud […]
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Research status of spur gear tooth surface friction
In the early research, because the dynamic impact theoretical analysis and experimental analysis of tooth friction are also limited, the […]
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Dynamic excitation and loading mode of spur gear transmission
The dynamic excitation of spur gear transmission system is an important part of studying the dynamic characteristics of spur gears, […]
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Spur gear meshing impact
Scholars at home and abroad have also done a lot of research and Analysis on the meshing impact of gear […]
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Variation law of equivalent stress and time in helical gear meshing process
The variation law between the dynamic contact equivalent stress and time of helical gear is shown in the figure: It […]
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Influence of cutter profile error on Gear Hobbing
First, create the process model of cutting tool machining gear, as shown in the figure. Therefore, we create the following […]
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Influence of tool error on gear hobbing accuracy
When the gear hobbing machine processes the gear, the accuracy of the cutter has a great influence on the gear […]
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Dynamic contact analysis and tooth profile modification of helical gears
There are many methods about helical gear modification. Only the transient dynamic contact and tooth direction modification of helical gear […]
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Meshing deformation and meshing stiffness of helical gears
In the past 30 years, a large number of scholars have used finite element, experimental analysis and theoretical calculation to […]
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Finite element modeling of straight bevel gear blank with initial stress field
In order to achieve the effect of simulation, the initial stress of spur bevel gear blank material needs to be […]
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Meshing and boundary conditions of straight bevel gear blank
Before the finite element analysis, first save the three-dimensional model file of spur bevel gear split blank created in UG […]
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Dynamic contact analysis and tooth alignment optimization of helical gears
The parametric modeling of helical gear and the dynamic contact analysis of helical gear with ANSYS software are studied. The […]
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Calculation of geometric parameters of Gleason hypoid gear
The calculation method of geometric parameters of hypoid gear formulated by Gleason company is to preliminarily preset the initial value […]
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Preliminary determination of pitch circle radius of pinion of hypoid gear pair
In Gleason algorithm, the following calculation formula is recommended for the helix angle of hypoid gear and pinion: Generally, the […]
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Optimization of cutting force and cutting parameters of spiral bevel gear NC milling machine
The development and application of modern numerical control technology provides a foundation for the development of spiral bevel gear machining […]
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Spur gear transmission with tooth surface friction in China
Spur gear transmission is widely used in the fields of machinery, electronics, textile, metallurgy, mining, automobile, aviation, aerospace and shipbuilding. […]
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Tooth direction modification of involute helical gear
The tooth direction modification of helical gear mainly refers to three elements: the direction of modification is the tooth direction, […]
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Causes of helical gear tooth direction modification
During the operation of the machine, it is subjected to external load or self load. Some of these loads are […]
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Boundary conditions imposed by material parameters of helical gears
Both helical gear 1 and helical gear 2 are linear elastic materials. The young’s modulus of helical gear 1 is […]
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Principle analysis of the influence of tool error on gear hobbing accuracy
As shown in the figure, it is the schematic diagram of error transmission in the machining process on the gear […]
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Principle and error analysis of gear hobbing
The principle of gear hobbing process is to mesh the gear workpiece with the hob. The gear hobbing hob is […]
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Dynamic contact analysis and tooth alignment optimization of helical gears
The research on the gear failure of involute helical gear is carried out, focusing on the engineering problems of uneven […]
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Helical gear modeling
The three-dimensional modeling of involute helical gear is carried out by UG software. Due to the structural characteristics of helical […]
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Basic parameter relations of involute helical gears
The tooth trend of the involute helical gear is the helix angle, and the normal tooth profile is in the […]
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Helical gear modification
It mainly completes the three-dimensional structure design of the helical gear model. First, the modal analysis of the helical gear […]
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Determination of initial value of pitch circle radius of large gear of hypoid gear pair
The pitch diameter D2 of the large gear of the hypoid gear pair is directly related to the size of […]
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Drum modification of involute helical gear
The basic theory of drum trimming is that when the inclination angle of the helical gear is the maximum, the […]
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Study on the load distribution in the tooth direction of involute helical gear
Uneven load distribution of helical gear is a common engineering problem, which should be considered as a key issue in […]
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Hypoid gear parametric system
Hypoid gear pair is a special bevel gear pair used to transfer staggered axis motion and load. It has the […]
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Modal analysis and solution of helical gear
According to the set boundary conditions, the helical gear is solved and analyzed, and the 20th order modal value of […]
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Theory and method of spur gear modification
At present, there are many methods to modify spur gears. The main methods include tooth profile modification and tooth direction […]
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Tooth direction modification of helical gear
This paper summarizes the model of load distribution in the tooth direction of helical gear, summarizes the method of uniform […]
Scientific
Establishment of finite element analysis model for helical gears
The geometric model of helical gear is established and assembled by using pro/e software. Here, it is agreed that the […]
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Principle and error analysis of gear hobbing
The machining principle of gear hobbing is shown in Figure 1. Theoretically, during gear hobbing, the gear hobbing hob meshes […]
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Gear accuracy and gear hobbing technology
Aiming at the most typical gear hobbing process of gear forming, focus on the multivariate mapping relationship between gear accuracy […]
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Research on NC machining of spiral bevel gear
In view of the existing problems, it is proposed to carry out research in the following aspects: (1) According to […]
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Contact stress of helical gear in heavy truck transmission
In view of the poor working conditions and large load bearing of the transmission gear of a heavy truck, which […]
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Helical gear modification
Helical gears will produce vibration, noise, stress concentration and other phenomena in the meshing process. In order to improve the […]
Scientific
Oil film at contact position of concave bionic cylindrical gear
Using five basic equations and MATLAB software for numerical calculation, select six contact points in the direction of gear tooth […]
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Assembly and machining experiment of equal height spiral bevel gear milling cutter
1. Assembly and inspection of cutting tools The assembly of milling cutter bar and milling cutter head and the inspection […]
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Helical gear meshing
In the process of helical gear meshing, the humidity of helical gear surface is composed of ambient temperature, helical gear […]
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Initial design conditions of Gleason hypoid gear pair
When calculating the geometric parameters of hypoid gear, Gleason company specifies detailed steps, and each step has a fixed formula. […]
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Evaluation of tooth surface roughness of spiral bevel gear
Different gear processing methods form the micro complex morphological characteristics of spiral bevel gear tooth surface, which brings difficulties to […]
Scientific
Calculation results and analysis of dynamic contact of helical gear
Figure 1-2 shows the maximum equivalent stress nephogram of the main and driven helical gears, and figure 3-13 shows the […]
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Helical gear loads and boundary conditions
The application of load is a very important step in the contact analysis of helical gears. The magnitude and direction […]
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Ingenious setting of helical gear boundary conditions and calculation of partial order
(1) Set contact pairs For the convenience of analysis and calculation, the helical gear profile is selected through the namedselection […]
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Modal analysis of helical gears
In short, modal analysis of Modalanylasis helical gear is a method to describe the structure according to the inherent characteristics […]
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Analysis of research status of gear hobbing in China and abroad
Gear hobbing is a very efficient and typical tooth making method. It is widely used in semi finishing of hard […]
Scientific
Contact stress of helical gear in automobile transmission
Due to the complex contact problem of helical gear, further research is needed in the following aspects: ① Fully parametric […]