Influence of helix angle on time-varying meshing stiffness and meshing force of helical gears
Figure 1 shows the influence curve of helix angle on the time-varying meshing force of the helical gear pair at […]
Scientific
Scientific
Machining experiment of face hobbing of controlled spiral bevel gear
The correctness of research methods and theories needs to be verified by relevant experiments. The experiment is divided into two […]
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Secondary Optimization Modification and Multi body Dynamics Analysis of Helical Gear Pair in Electric Vehicle Reduction Box
Transmission error belongs to error excitation, which is an important factor affecting the vibration and noise of meshing helical gear […]
Scientific
Influence of optimized modification on tooth surface load distribution of helical gear pair
As shown in the figure, the tooth surface load distribution of No. 0 unmodified, No. 1 optimization scheme and No. […]
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Heat treatment and induction hardening of Automobile Gears
In the early automobile gear production, heat treatment induction quenching was widely used because of its high production efficiency, small […]
Scientific
Structure and motion analysis of full CNC spiral bevel gear milling machine
The earlier gear cutting of spiral bevel gear was carried out on mechanical gear milling machine. The mechanical gear milling […]
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Meshing Contact Analysis of Helical Gear Pair in Electric Vehicle Reduction Box
Taking the helical gear pair of an electric vehicle gearbox as the research object, the KISSsoft software was used to […]
Scientific
Influence of optimized modification on flash temperature and contact temperature of helical gear pair
Under the ideal oil lubricated meshing condition, the big and small gear teeth will be completely separated by the oil […]
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Carbonitriding process for heat treatment of Automobile Gears
Heat treatment carbonitriding process is frequently used because it can effectively improve the depth of carburizing layer, obtain high hardness, […]
Scientific
Optimal design of tooth contact characteristics of spiral bevel gear
According to the influence law of the impression shape on the internal excitation of the spiral bevel gear, a pair […]
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Carburizing process for heat treatment of Automobile Gears
Heat treatment carburizing process can make gears have good comprehensive mechanical properties, so it is most widely used in the […]
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Internal excitation analysis of spiral bevel gears with different meshing marks
The meshing impression shape of the spiral bevel gear is an important index to measure its meshing quality, which will […]
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Three dimensional finite element model of helical gear contact characteristics
The three-dimensional model of helical gear is established, and the contact analysis of helical gear is carried out by finite […]
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Pre heat treatment process of automobile gear
Automobile gears are usually made of low-carbon alloy carburized steel. Gear blanks generally need to go through multiple cold and […]
Scientific
Analysis of meshing impact excitation of hypoid gear
Meshing impact is another factor that produces vibration and noise in the process of hypoid gear transmission. It is caused […]
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Finite element contact analysis and test of spiral bevel gear
The geometric modeling of spiral bevel gear, static loading contact analysis, dynamic loading contact analysis, the design of closed power […]
Scientific
Calculation of transmission error of spiral bevel gear
After obtaining the comprehensive meshing stiffness of spiral bevel gear, in order to obtain the stiffness excitation force curve of […]
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Finite element contact analysis and experimental study of spiral bevel gear
Through experimental measurement and finite element simulation analysis, the spiral bevel gear is analyzed and studied respectively, and the meshing […]
Scientific
Calculation of comprehensive meshing stiffness of spiral bevel gear
When calculating the meshing stiffness of single tooth with finite element method, first extract the contact force resultant force of […]
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Spiral bevel gear design and meshing performance test bench
In order to carry out experimental research on spiral bevel gear, a spiral bevel gear transmission is designed first. According […]
Scientific
Calculation principle of stiffness excitation of spiral bevel gear
Stiffness excitation is the phenomenon that the time-varying meshing stiffness of the gear produces the dynamic meshing force of the […]
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Finite element theoretical calculation and analysis of dynamic contact stress and bending stress of spiral bevel gear
According to the working condition of spiral bevel gear simulated in dynamic loading contact analysis, the value range of calculation […]
Scientific
Optimization of helical gear compound modification scheme
(1) Gear profile optimization modification+tooth direction drum modification Figures 1, 2, 3, 4 and 5 respectively show the composite modification […]
Scientific
Influence of pressure angle on meshing performance of helical gear pair
(1) Influence of pressure angle on transmission error of helical gears Figure 1 shows the relationship curve between pressure angle […]
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Optimization analysis of helical gear tooth profile modification
(1) Optimal modification of linear addendum with long tooth profile Figures 1, 2 and 3 respectively show the simultaneous long […]
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Construction of contact finite element model of spiral bevel gear
After obtaining the cutting adjustment parameters and cutter head parameters of the large and small gears of spiral bevel gear, […]
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Contact analysis of spiral bevel gear under dynamic loading
In order to obtain the meshing characteristics of spiral bevel gear under dynamic loading, this chapter first introduces its dynamic […]
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Influence of helical gear parameters on its meshing performance
Transmission error is an important physical quantity used to describe the deviation degree between the actual angle and the theoretical […]
Scientific
Spur gear meshing impact excitation
Ideally, the meshing form of spur gear pair is shown in Figure 1. It can be seen that one end […]
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Formulation of modification scheme for helical gear pair
(1) Selection of long and short modification methods Long modification refers to the repair and removal of the part from […]
Scientific
Solution of internal excitation of spiral bevel gear meshing
Through the above contact characteristic control methods and contact area analysis methods, we can easily obtain the desired contact area […]
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Virtual machining method of spiral bevel gea
It is necessary to create a three-dimensional geometric model of the gear before carrying out the loaded contact analysis. For […]
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Helical gear contact strength and bending strength check
For helical gear pair transmission, the number of rotation cycles of the pinion is more than that of the big […]
Scientific
Analysis of spur gear error excitation
The large number of studies have proved that dynamic excitation is the main cause of spur gear vibration, which is […]
Scientific
Analysis of influence law of contact characteristics and control parameters of spiral bevel gear
It can be seen from the figure that with the increase of the inclination angle of the large and small […]
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Modeling of spiral bevel gear based on Virtual Machining Technology
According to the machining principle, meshing theory and virtual machining technology of spiral bevel gear, the process of spiral bevel […]
Scientific
Stiffness excitation analysis of spur gears and helical gears
(1) Time-varying meshing stiffness Because the gear teeth will produce elastic deformation when the gear is engaged, and the gear […]
Scientific
Contact characteristic control and cutting adjustment calculation of face hobbing spiral bevel gear
The spiral bevel gear processed by face hobbing adopts the principle of indirect generation method to ensure that the large […]
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Finite element contact analysis and test of spiral bevel gear
The main research work is to analyze and study the meshing characteristics of spiral bevel gear with transmission ratio of […]
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Helical gear modification and vibration and noise reduction for electric vehicles
At present, most electric vehicle OEMs use motor+gearbox+rear axle (as shown in the figure) instead of motor+rear axle, which not […]
Scientific
Establishment of nonlinear vibration mathematical model of helical gear pair
Under the ideal condition that all components in the gearbox except the helical gear are regarded as absolute rigid bodies […]
Scientific
Tooth modification of helical gears for reduction gearbox of electric vehicles
As shown in Figure 1 (a), under ideal or no-load conditions, the helical gear pair can mesh smoothly and bear […]
Scientific
Determination of pitch cone of spiral bevel gear with end face hobbing
The spiral bevel gear for face hobbing of spiral bevel gear generally adopts equal height tooth system, and its root […]
Scientific
Tooth profile modification of helical gears for reduction gearbox of electric vehicles
In order to solve the problem of serious squealing and knocking noise of helical gears in the reduction gearbox, improve […]
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Contact analysis and test of spiral bevel gear
Spiral bevel gear plays an important role in transmission machinery. However, its tooth surface shape, transmission characteristics, the structure of […]
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Finite element simulation of helical gears
The design and optimization of helical gears are often complicated, and even involve the solution of some transcendental equations. Therefore, […]
Scientific
Knocking noise of helical gear
Knocking mainly occurs on the helical gear box components such as meshing no-load helical gear, synchronizer and sliding sleeve. Due […]
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Preliminary Optimum Modification and Meshing Contact Analysis of Helical Gear Pair of Electric Vehicle Reduction Box
In the process of shape modification development and application research aimed at the bottleneck problem of helical gear vibration noise […]
Scientific
Analysis on the principle of continuous tooth division in face hobbing of spiral bevel gear
The forming process of bevel gear face hobbing can be regarded as a meshing transmission between the generating wheel and […]
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Straight bevel gear and spiral bevel gear are common types of bevel gears
Gear transmission is an important mechanical transmission mode. The continuous revitalization of machinery manufacturing industry has driven the rapid development […]
Scientific
Experimental results of conjugate curve bevel gear machining
The contact spots of three new bevel gears are shown in Figure 1. It can be seen that for single […]
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Vibration and noise mechanism of helical gear pair in electric vehicle gearbox
Only on the basis of understanding and mastering the mechanism of transmission noise of electric vehicle reduction gearbox and helical […]
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Research Status of Gear Modification Technology
Gear modification is an important technology to reduce gear vibration noise and prolong its service life. Because of the variety […]
Scientific
Helical gear squealing noise
Helical gear squeal is a kind of pure noise with medium high rate and low sound pressure level, which is […]
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Research on wear resistance of bionic non smooth gear surface based on Reverse Engineering
Friction resistance widely exists in actual production and our life. The friction between moving pairs will lead to the gradual […]
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Research status of helical gear vibration and noise
The study of helical gear vibration and noise abroad has a history of more than 100 years. However, it was […]
Scientific
Five point contact equiangular spiral bevel gear
According to the method, the equiangular spiral bevel gear with five point contact can also be constructed. Because the section […]
Scientific
Force analysis of equal angle spiral bevel gear
The finite element method is still used to analyze the force of bevel gear model. The grid size setting, physical […]
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Study on reverse engineering of gear surface
Mainly from the perspective of reverse engineering, this paper studies the three-dimensional geometry of the gear surface and establishes its […]
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Bevel gear modification for reduction gearbox of electric vehicle
With the intensification of global warming, it is urgent for countries to carry out energy transformation and develop high-quality low-carbon […]