Stress intensity factor method for helical gear crack
If the stress state of the crack and the displacement direction of the crack surface are taken as the classification […]
Scientific
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Application of high efficiency cutting in gear machining
The concept of efficient machining has been widely used in China’s current automotive industry. However, in the aspect of engineering […]
Scientific
Example analysis of contact line of cylindrical gear
In order to explain the influence of different deviation values on the contact line error and tooth profile of cylindrical […]
News
Influence of grinding wheel position deviation on profile of cylindrical gear
Gear mechanism is one of the most widely used transmission mechanism and speed change mechanism in mechanical industry. With the […]
Scientific
Error analysis of contact line of cylindrical gear
In the transmission process, the contact area on the traditional gear tooth surface is a space surface, and the accuracy […]
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Analysis of machining problems of mechanical gear at present
1.Wrong number of gears The number of gears on the outer edge of the gear is called the number of […]
Scientific
Analysis of relative position deviation between grinding wheel and cylindrical gear
In the process of cylindrical gear form grinding, the tooth surface equation of the machined cylindrical gear can be determined […]
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Analysis of high precision gear processing technology
The overall structure of gear is mainly composed of tooth surface, tooth circle and tooth. According to different parameters and […]
Scientific
Influence of profile design of axial section of forming wheel on profile of cylindrical gear
The machining coordinate system of cylindrical gear grinding with form grinding wheel is established, as shown in Figure 1. In […]
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Machining technology of high precision mechanical gear
1.Involute machining technology Involute gear manufacturing is a common manufacturing method for high-precision gear processing in China. Therefore, the relevant […]
Scientific
Calculation of tooth surface equation of cylindrical gear
In the process of transmission, the contact line of the line gear is formed by the motion track of the […]
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Finite element analysis of gear shaft in feed box of lathe
In the machining process, each axis of C6136A lathe in the working process, due to the different stress conditions, the […]
Scientific
Types of rack and pinion pneumatic actuators for ball valves
Rack and pinion actuator is the most commonly used pneumatic actuator. The middle of the cylinder is connected with the […]
Scientific
Non pitting characteristic response speed of gear transmission dynamic system simulation
When the input speed frequency is 10Hz, the displacement response of master-slave gear XP is selected as the analysis object. […]
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Strategy of effectively controlling noise of internal gear pump
(1) Control of noise caused by flow pulsation. Through the above analysis of the causes of noise, we can see […]
Scientific
Preprocessing of finite element analysis for gear shaft of feed box of C6136A lathe
From the point of view of simplification, because the gear shaft of C6136A lathe feed box is a stepped shaft, […]
Scientific
Dynamic model of 6-DOF gear
Based on the introduction of the corresponding mathematical model and application scenarios proposed for the dynamic physical model of gear […]
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Cause analysis of noise in internal gear pump
(1) Pump flow pulsation causes noise. In the process of operation, the pump is faced with the noise problem caused […]
Scientific
Dimensional normal load and dimensional normal contact stiffness model of gear transmission system with rough tooth surface
In order to reduce the input of parameters in numerical simulation, the mathematical model of dimensional normal load is obtained […]
Scientific
Establishment of force model for gear shaft of feed box of C6136A lathe
Before determining the speed of the gear shaft of the feed box, the speed of the main shaft must be […]
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Working principle of internal gear pump
With the rapid development of industrial society, the application scope of internal gear pump is more and more wide, and […]
Scientific
Structure of small gear and big gear ring of high temperature resistant blind valve
The loosening of the valve clamping part adopts the gear ring transmission mode. The gear ring transmission ratio is constant, […]
News
Calculation results of wheel side meshing gear
40CrMnMo is selected as the solar gear and planetary gear. The material is assumed to be isotropic. Next, constraints are […]
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Finite element analysis of meshing gear of a wheel side gear reducer
For heavy trucks, mining vehicles and off-road vehicles, large transmission ratio is needed, so wheel reducers are needed as the […]
Scientific
Establishment of geometric model of wheel side meshing gear
Firstly, the 3D complex model (such as chamfering and other details) is simplified in order to reduce the difficulty of […]
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Influence of hub deformation on engagement scheme of star gear reducer
In the case of reducing the hole diameter properly, modifying the size of a hole alone can not completely eliminate […]
Scientific
Force analysis of meshing gear of wheel side gear reducer
For each part of the design requirements should meet the size of the installation, power standards, long life and so […]
Scientific
Influence of hub deformation on meshing finite element calculation results of star gear reducer
The results of finite element analysis show that: When the rotation angle of the input end is between 0.64 rad […]
News
Influence of hub deformation on meshing finite element model of star gear reducer
According to the real structure and the above model simplification method, the author establishes the three-dimensional solid models of internal […]
News
Effect of hub deformation on meshing model simplification of star gear reducer
In fact, there are many parts in the transmission gear train of planetary gear output type planetary gear reducer, the […]
Scientific
Influence of hub deformation on meshing simulation model of star gear reducer
The planetary gear hub of planetary gear output type planetary gear transmission system consists of six circumferential uniformly distributed transmission […]
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Brief introduction of planetary gear reducer with planetary gear output
For planetary gear output type planetary gear reducer, during its operation, the planetary gear not only makes translation around the […]
Scientific
Bifurcation characteristics of a two stage planetary gear system with varying backlash
Due to the manufacturing accuracy, installation error, lubrication requirement and space reserved for the thermal expansion of gear teeth, the […]
News
Influence of hub deformation on meshing characteristics of star gear reducer
Star gear transmission is a kind of transmission system with few internal teeth difference and internal translation. Compared with other […]
Scientific
Lyapunov exponent of nonlinear system of two stage planetary gear system
Lyapunov exponent represents the average exponential divergence rate of the distance between two adjacent trajectories in the phase plane with […]
Scientific
Nonlinear dynamic system excitation of two stage planetary gear system
1.Time varying meshing stiffness When the gear is in transmission, the meshing tooth pair alternates between 1 and 2, the […]
News
Study on nonlinear dynamic characteristics of two stage planetary gear train
The lumped parameter method is used to establish the “translation torsion” coupling dynamic model of the two-stage speed increasing planetary […]
Scientific
Nonlinear dynamic model of two stage planetary gear system
The research object of the model is a two-stage planetary gear system, and the system diagram is shown in Figure […]
News
Nonlinear dynamic characteristics of two stage planetary gear train
Compared with single-stage transmission, multi-stage planetary gear transmission has higher efficiency, but its structure is more complex. Multi stage planetary […]
News
Modal analysis of gear transmission shaft considering forced vibration
The modal module is used to simulate and test the transmission shaft structure. As shown in the figure, when using […]
Scientific
Influence of tooth line radius of variable hyperbolic arc gear on meshing stiffness curve
For the variable hyperbolic arc gear, when the radius of the tooth line is small, the tooth profile surface of […]
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Modal establishment of gear transmission shaft considering forced vibration
The gear transmission structure composed of four stage reduction system is selected as the test object, and the gear transmission […]
Scientific
Influence of load on meshing stiffness curve of variable hyperbolic arc gear
When different loads are applied, the comprehensive elastic deformation of the tooth surface of the variable hyperbolic arc gear changes, […]
News
Dynamic simulation analysis of gear transmission shaft considering forced vibration
At this stage, the research on gear transmission structure is mainly concentrated in the field of vehicle transmission, reducer and […]
Scientific
Comprehensive meshing stiffness of double teeth of variable hyperbolic arc gear
After the single tooth meshing stiffness is obtained, the double tooth comprehensive meshing stiffness curve can be obtained by the […]
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Residual life prediction of gear based on long term and short term memory network
Gear as the transmission device of mechanical equipment, its health has a great impact on the stability and life of […]
Scientific
Single tooth meshing stiffness of variable hyperbolic arc gear
The comprehensive elastic deformation UN of the pair of gear teeth is extracted by finite element post-processing, and the normal […]
Scientific
Iteration of modification parameters for multi-stage gear transmission system of shearer cutting section
An example is given to show the iterative process of the modification parameters. The tooth profile modification in this study […]
Scientific
Normal contact force and comprehensive elastic deformation of meshing tooth surface of variable hyperbolic arc gear
In order to accurately simulate the whole process of a certain tooth surface of the driving gear from entering meshing […]
News
Preprocessing of finite element analysis model of variable hyperbolic arc gear
The pre-processing of finite element analysis of variable hyperbolic arc gear includes: the selection of element, the setting of analysis […]
Scientific
Simulation analysis of rough surface of gear transmission system
In order to compare and display the data intuitively, the single logarithm coordinate drawing method is used to draw the […]
Scientific
Establishment of finite element analysis model of variable hyperbolic arc gear
In order to calculate the stiffness of variable hyperbolic arc gear, it is necessary to calculate the normal contact force […]
News
Finite element model of variable hyperbolic arc gear
In the finite element calculation, the choice of mesh type is very important to the accuracy of the results. According […]
Scientific
Contact model of asperity on rough surface of gear transmission system
According to the two-dimensional contour curve (formula) of rough surface expressed by W-M function, the morphology characteristics of rough surface […]
Scientific
Tooth profile modification of multistage gear transmission system of shearer cutting part
In this study, symmetrical straight line modification is used in the direction of tooth profile, and the modification curve is […]
News
Effect of tooth surface roughness on gear transmission system
The rough appearance of the tooth surface is random, and the geometric characteristics of the appearance are related to the […]
Scientific
Friction mathematical model of meshing stiffness of gear transmission system
According to the actual meshing process of gear pair, the interface of a pair of gear pairs is filled with […]
Scientific
Digital modeling of variable hyperbolic arc gear
The principle of machining variable hyperbolic arc gear with rotating cutter head is shown in Figure 1. With double-edged cutting, […]
Scientific
Dynamic model of tractor planetary gear transmission system
According to Lagrange equation, the dynamic differential equation of planetary transmission system can be deduced as follows Among them, JS, […]
Scientific
Tooth direction repair drum of multi-stage gear transmission system of shearer cutting part
The calculation process of the modification parameter calculation method mainly includes four steps: the first step is to obtain the […]