Research status of driven helical gear blank of automobile rear axle
At present, the better process methods for producing the driven helical gear blank of automobile rear axle at home and […]
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helical gear
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Forging process of helical gear
The cold / hot forging drawing is determined by the helical gear part drawing. The influence of the tooth shape […]
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Helical gear closed hot die forging preform tooth profile
Based on the design of process flow, the main purpose of closed hot die forging step is to realize the […]
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Research status of helical gear forming technology
Germany, Japan and other developed countries began to study the helical gear forming process very early, and the technology is […]
Scientific
Stroke load curve of helical gear in cold finishing process
The figure shows the stroke load curve of the helical gear cold finishing process. It can be seen from the […]
Scientific
Motion simulation of helical gear hobbing
After the assembly of hob and helical gear, the following settings must be completed before the hobbing motion simulation of […]
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Optimization of friction factor in helical gear forming
In the process of forming helical gear by precision forging, friction will inevitably occur between the blank and the die […]
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Equivalent stress and equivalent strain analysis of helical gear forming
At different forming speeds, the distribution law of equivalent stress in the forming process of each simulation experiment is basically […]
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Optimization of blank size of helical gear
Die forging refers to the process that the helical gear blank is formed in the die bore under the action […]
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Influence of different friction coefficients on vibration and noise of helical gear system after modification
The vibration noise of helical gear system with modified friction coefficient of 0.1 is calculated. In order to study the […]
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Simulation of precision forging of helical gear
Basic parameter setting of helical gear simulation (1) Model material: the material of the selected helical gear blank is 20mncr5, […]
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Application of numerical simulation technology in gear precision forging
With the rapid development of finite element numerical simulation technology, numerical simulation technology is more and more used in the […]
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Precision forging process of spur bevel gear and helical bevel gear
As an advanced processing method, precision forging has been widely used in the processing and manufacturing of spur bevel gear […]
Scientific
Influence of modification on vibration and noise of helical gear system
① Simulation results of vibration and noise of helical gear system before modification The sound pressure nephogram of helical gear […]
Scientific
Double split precision forging test equipment for helical gears
The figure shows the universal material testing machine selected for experimental research. The maximum test load of the helical gear […]
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Precision forging of helical gears
The design, research, processing and production of gears at home and abroad have a history of many years and have […]
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Double split precision forging test of helical gear
Combined with the numerical simulation analysis results and the best process parameters, experimental research is carried out to verify the […]
Scientific
Acquisition of boundary conditions for vibration and noise simulation of helical gear system
To calculate the vibration noise of the acoustic boundary element model of helical gear system, it is necessary to obtain […]
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Experimental study on double split precision forging of helical gear
Finite element method is widely used in various fields of plastic processing. It is not only an important means to […]
Scientific
Establishment of structure and acoustic finite element model of helical gear system
① Establishment of structural finite element model of helical gear system The acoustic grid requires the grid size to be […]
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The influence of the position of diffluence surface on the filling quality of helical gear tooth profile
The position of the split surface of the helical gear is determined by the distance between the male die and […]
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Precision forging of helical gear
1) Design of precision forging process of helical gear. According to the principle of precision forging and the structural characteristics […]
Scientific
Influence of different friction coefficients on dynamic response of helical gear after modification
The friction coefficient has an important influence on the dynamic response characteristics of helical gear. Based on the coupled dynamic […]
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Dynamic prospect of helical gear transmission system of hybrid electric vehicle
The internal structure of compound helical gear in the gear transmission system of hybrid electric vehicle is relatively complex, and […]
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Precision forging of helical gear
Precision forging of helical gear is a research hotspot at home and abroad in recent years. There are mainly the […]
Scientific
Influence of modification on dynamic response of helical gear
The stiffness excitation and friction excitation change after helical gear modification. The coupling dynamic model of helical gear modification and […]
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Dynamics of helical gear transmission system of hybrid electric vehicle
The helical gear transmission system of hybrid electric vehicle is composed of compound planetary gear mechanism and parallel shaft gear […]
Scientific
Analysis of simulation results of coupling dynamic model of helical gear modification and friction excitation
Based on the 8-DOF coupling dynamic model of helical gear system, the Runge Kutta method is used to solve the […]
Scientific
Total meshing stiffness of automobile helical gear
In the helical gear transmission of hybrid electric vehicle, although the rolling motion conditions are considered in the tooth surface […]
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Common problems of helical gear reducer
1.Common problems and causes of helical gear reducer: a. Heating and oil leakage of reducer; b. Worm gear wear; c. […]
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Solid modeling of helical gear
In recent years, with the continuous research in the field of face gear, according to the axis relationship of transmission […]
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Simulation conditions and solution method of coupling dynamic model of helical gear modification and friction excitation
① Simulation conditions Based on the established 8-DOF coupling dynamic model of helical gear system, Runge Kutta method is used […]
Scientific
Research on calculation method of helical gear meshing stiffness based on unit contact line length of helical gear end face
The dynamic excitation caused by the time-varying meshing comprehensive stiffness of helical gear system is one of the most important […]
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Classification of helical gears
Helical gear reducer is a novel reduction transmission device. It has many advantages, such as small volume and light weight. […]
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Polishing and grinding method of automobile helical gear drum and abrasive flow machining technology
Barrel grinding can improve the tooth surface roughness and the fatigue life of automotive helical gears under certain conditions, and […]
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Research on hobbing of helical gear
The solid modeling of helical gear tooth surface generation is carried out, and the gear meshing analysis, machining method and […]
Scientific
Calculation results of time-varying friction excitation of helical gear
The calculation program of friction force and friction torque is compiled by MATLAB software. The total comprehensive contact line length […]
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Helical gear transmission of hybrid electric vehicle
The dynamic characteristics of the helical gear transmission system of a new compound power split hybrid electric vehicle of a […]
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Advantages and disadvantages of helical gear
Advantages: (1) Good meshing performance: the meshing process between helical cylindrical gear teeth is an excessive process, and the force […]
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Innovation in hobbing of helical gear
The research on the machining method of face gear is an important part of the research on face gear transmission […]
Scientific
Calculation of time-varying friction torque of helical gear
According to the previous analysis, the friction perpendicular to the meshing line will cause the friction torque around the rotation […]
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Machining status of spur gear and helical gear
1. Present situation of spur gear machining The processing method of face gear is similar to that of ordinary cylindrical […]
Scientific
Calculation method of time-varying friction force of helical gear
The friction force on the contact line of the helical gear. When the helical gear meshes through the node P, […]
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Basic parameters of helical gear
1.Helix angle: It refers to the angle between the teeth of helical gear and the axis. Helix angle is a […]
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Time varying contact line algorithm for helical gears
The contact line of helical gear is the intersection of the meshing tooth surface and the meshing plane of the […]
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Profile modification of helical gear
Helical gear is the most commonly used type of automotive power transmission gear. Generally, it must work under the condition […]
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Introduction to helical gear
Gear is a common part often used in mechanical transmission. The gear is made of high-quality high-strength alloy steel with […]
Scientific
Types and properties of internal dynamic excitation of helical gears
The dynamic excitation of helical gear system includes internal excitation and external excitation. The internal excitation of helical gear pair […]
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Coupling dynamic modeling and noise analysis of helical gear modification and friction excitation
Taking helical gear as the research object, through the analysis and research of static transmission error, friction excitation and helical […]
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Brief introduction of helical bevel gear
Helical bevel gear refers to the bevel gear whose tooth line on the crown wheel is a straight line that […]
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Study on calculation method of friction excitation and stiffness excitation of helical gear
As an important part of the transmission system, helical gear generates dynamic meshing excitation during operation due to the change […]
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Basic theory of helical gear dynamics and calculation of static transmission error after modification
Helical gear system is a complex elastic mechanical system composed of gear pair, transmission shaft, bearing and box. In the […]
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Advantages and application of helical cylindrical gear
Helical cylindrical gear is a kind of helical gear. It is called helical cylindrical gear only when the two shafts […]
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Helical gear processing technology
Helical gears is the abbreviation of “helical cylindrical gear”, that is, the cylindrical gear whose tooth line is cylindrical helix, […]
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Coupling dynamic modeling of helical gear modification and friction excitation
Through the research on the relationship between helical gear modification and friction excitation, the coupling dynamic model of helical gear […]
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Research status of dynamic characteristics of helical gears in China and abroad
The dynamic response characteristics of gear system refer to the dynamic behavior of gear system in the working process, mainly […]
Scientific
Comparative test on the influence of pre heat treatment on the deformation of helical cylindrical gear
1. Test purpose Verify the influence of different pre heat treatment methods on the deformation of final carburized helical cylindrical […]
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Development of surface strengthening technology for automotive helical gears
The automotive helical gear transmission system under various complex working conditions makes the surface strengthening technology of automotive helical gear […]
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Influence of material quality on deformation of truck helical gear
The influence of material quality on the quality of truck helical gear has attracted more and more attention. The unstable […]
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Effect of cold working on heat treatment deformation of helical gear
The machining method and residual stress of spiral gear will have a certain influence on the deformation of carburized spiral […]