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 […]
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helical gear
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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
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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
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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
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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
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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
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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
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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
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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
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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
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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
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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
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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
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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
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Research status of helical gear modification in China and abroad
The purpose of gear modification is to make the pressure distribution on the tooth surface as uniform as possible after
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Numerical simulation research and scientific problems of surface strengthening of automotive helical gears
In the field of scientific research and engineering technology, numerical simulation is a basic research method that pays equal attention
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Effect of oil on fatigue strength, life and wear of automotive helical gears
Automotive automatic transmission lubricating oil (ATF) not only meets the lubrication of automotive helical gears and bearings, but also undertakes
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Test experiment of contact strain of helical gear
In order to study the bending stress of helical gear tooth root, the test will be measured under three working
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Temperature rise test experiment of helical gear contact characteristics
MCL ⁃ 1A helical gear wear testing machine is used for the experiment, which is driven by the spindle motor,
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Experiment and result analysis of helical gear meshing transmission
After the transmission test bench is assembled, the contact spot detection experiment of helical gear is carried out below. Because
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Design and construction of helical cylindrical gear meshing test-bed
According to the theoretical knowledge of orthogonal helical gear, when the helical gear and helical cylindrical gear mesh, the two
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Hobbing of helical gear installation of hob
Before hobbing helical gear, first, prepare the combined fixture and clamp it correctly according to the relative position of each
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Introduction of fixture for hobbing helical gear
In order to meet the requirements of hobbing helical gear on the gear hobbing machine, the tooling fixture is designed
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Solid modeling of helical gear based on Pro/E software
Before the solid modeling of helical gear in Pro/E software environment, firstly, the coordinates of discrete data points calculated in
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Generation of tooth surface data points of helical gear based on MATLAB
Due to the complexity of face gear tooth surface, it is very difficult to create a complete helical gear model
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Undercutting theory of helical gears
When the helical gear meshes with the tool, the speed of the former at the contact point is zero. At
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Cutter tooth surface equation of helical gear
When deriving the helical gear equation, the main parameters of the tool need to be determined are: normal surface modulus: