Improving the bearing capacity of low speed and heavy load gear with soft tooth surface
When gears work, they bear two kinds of stress, so there are few two kinds of failure. One is that […]
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Simulation design of tractor gear based on ADAMS
The modeling of Pro / E software is based on the characteristics of 3D model, and it can also carry
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Carburizing and quenching process of low speed and heavy duty gear
There are three ways to improve the bearing capacity of gears, namely, ① improving the structure of reducer, such as
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Study on dynamic characteristics of gear fatigue pitting
From the engineering point of view, through the establishment of mathematical models and contact fatigue test platform under different physical
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Gear system model and dynamic response analysis under pitting corrosion
By establishing a simplified six degree of freedom dynamic mathematical model of gear system and a rigid body dynamic analysis
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Analysis on crack propagation of internal meshing modified gear
According to the calculated stress intensity factors, the results of stress intensity factor analysis show that ki is the largest,
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Application of improved entropy feature in planetary gear crack fault identification
Due to the bad working environment of a tank planetary gearbox, the gear is prone to crack and other faults.
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Derivation and application of gear meshing stiffness model under pitting characteristics
The shape of pitting pits on tooth surface is simulated quickly and approximately by using rectangular geometry. The mathematical models
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Research and application of time varying meshing stiffness of gear under macro / micro interface characteristics
Considering the macro interface friction coefficient, the load component equation along the tooth profile direction is derived, and the mathematical
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Derivation and application of refined gear time varying meshing stiffness model
“Innovation, coordination, green, open and sharing” are the five core supporting development concepts to promote the green transformation of traditional
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Comparison and summary of fatigue pitting test results of spur gears
In order to better reflect the effect of the test gear on the dynamic response characteristics of the system due
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Fatigue pitting characteristics of spur gear in fatigue pitting test
Figure 1 shows the measurement curve of tooth profile deviation of aa-1 gear after fatigue pitting. The measurement results show
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Measurement data and response characteristics of fatigue pitting corrosion test for 8 million cycles spur gear
Figure 1 shows the measurement curve of tooth profile deviation of aa-1 gear after 8 million times of operation. The
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Measurement data and response characteristics of fatigue pitting corrosion test for spur gears with six million cycles
Figure 1 shows the profile deviation measurement curve of aa-1 gear working tooth surface (left tooth surface) after running for
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Measurement data and response characteristics of fatigue pitting corrosion test for spur gears with 4 million cycles
Figure 1 shows the profile deviation measurement curve of aa-1 gear working tooth surface (left tooth surface) after running for
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Results of original measurement data in fatigue pitting test of spur gear
First of all, the professional D80 gear measuring and Testing Center (Figure 1) is used to measure the accuracy of
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Data acquisition and measurement method for fatigue pitting test of spur gear
The main data acquisition method of cylindrical gear fatigue test-bed is to collect and record the data through the real-time
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Summary of fatigue pitting test bench for spur gears
It is a very complicated and random process that gear evolves from the healthy state of tooth surface to fatigue
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Research on dynamic response of gear system pitting based on rigid body dynamics
Based on the theory of rigid body dynamics, the rigid body analysis model of pitting dynamics of gear system is
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Gear model and coupling force element characteristics
Gear is the key part of gearbox system, so it is very important to establish the coupling force element between
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Dynamic model of gear system
According to the rigid body multi-body dynamic motion analysis theory and modeling ideas, the single-stage gearbox can be dissected and
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Response characteristics of gear pitting dynamics simplified model
A simplified six degree of freedom dynamic mathematical model of gear system is established to study the dynamic response characteristics
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Time-varying meshing stiffness analysis of gear under fatigue pitting corrosion
By referring to the physical causes of fatigue pitting on tooth surface and the characteristics of pitting pits, different mesh
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Overview of fatigue pitting of gears
According to the causes of pitting, pitting is a phenomenon of surface metal falling off under the action of cyclic
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Influence of interface characteristics of gear transmission on time-varying meshing stiffness
By introducing the effect of interface characteristics (such as friction, rough surface, etc.) between gears, the comprehensive time-varying stiffness of
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Calculation of tooth surface adhesion wear of involute spur gear under low speed condition
Adhesive wear is the most common fault type on the working surface of mechanical system, which often occurs on the
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Specific control measures of gear heat treatment deformation
Gear deformation is affected by many factors. In order to effectively avoid tooth shape deformation during heat treatment and reduce
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Analysis of time varying meshing stiffness of gears in ideal state
Based on the theory of gear kinematics and energy method, a high-precision modeling method for calculating the time-varying meshing stiffness
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Study on dynamics of gear transmission system under fatigue pitting of tooth surface
Combined with the research results of earlier scholars at home and abroad, and aiming at the relevant research points and
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Study on pitting corrosion dynamics of gear transmission system
Liang et al. established three preset models for pitting at different point erosion degrees: mild pitting, moderate pitting and severe
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Research on time-varying meshing stiffness of gears by test method and coupling method
The test method usually adopts quasi-static analysis conditions, which can accurately calculate the TVMs of gear meshing pair. In practical
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Research on tooth surface of enveloping hourglass worm with variable tooth thickness involute gear
In variable tooth thickness involute gear enveloping hourglass worm gearing, the worm gear is variable tooth thickness involute gear with
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Study on Time-varying Meshing Stiffness of Gear by Finite Element Method
Finite element method (fem) is to the gear body and tooth discrete into tiny unit elastic body, and through the
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Research results of dynamics model of gear transmission system under fatigue pitting of tooth surface
He et al. extended the two-stage gear reducer dynamics model on the single-stage gear dynamics model, and studied the influence
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Research results of dynamics model of industrial gear transmission system
Zhou jian magnitude to a gear mesh type bending – twist mechanical model considering the meshing stiffness and error of
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Dynamics model of gear transmission system
For gear transmission system dynamics by physical model to the transformation of the mathematical model, and to establish the mathematical
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Establishment of contact finite element model of low speed and heavy load gear
The low-speed and heavy-duty gear assembly established by SolidWorks is exported to. Step format and imported into ANSYS Workbench. The
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Prospect of rocker box and multistage gear transmission of shearer cutting part
A series of research work has been carried out on the dynamic modeling analysis and dynamic performance optimization of multi-stage
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Innovation of rocker box and multistage gear transmission of shearer cutting part
① Aiming at the problems of modeling difficulty and low computational efficiency of multi-stage gear system dynamics, an efficient general
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Parametric modeling and dynamic meshing analysis of low speed and heavy load gears
In the dynamic analysis of gear, the modeling process is very important. With the development of science and technology, there
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Crack propagation law of low speed and heavy load gears
The research content of gear crack and the research status of gear stress intensity factor at home and abroad are
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Research on rocker box and multi-stage gear transmission of shearer cutting part
With the continuous increase of mining depth, the geological characteristics of high ground stress and strong mining disturbance in deep
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Research status of stress intensity factors for low speed and heavy duty gears
Under the action of long-term repeated load, gear is easy to produce fatigue microcracks, which leads to the decrease of
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Dynamic characteristics and crack propagation path of low speed and heavy load gears
In order to solve the problems of dynamic characteristics and crack propagation path of low-speed and heavy-duty gears, the main
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Structure optimization of rocker arm box of shearer cutting part and 3D topological modification of multi-stage gear
The dynamic performance of shearer cutting part is improved from two aspects of rocker box structure optimization and multi-stage gear
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Coupling dynamic characteristics of multistage gear transmission and rocker box
By means of natural vibration analysis and system dynamics simulation, the coupling dynamic characteristics of multi-stage gear transmission and rocker
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Research on the method of gear crack propagation
There are many methods to study the crack propagation of gears. The following summarizes four common methods to simulate the
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Research status of low speed and heavy load gear crack
The crack propagation of gear can be divided into three stages: the first stage, crack initiation stage; The second stage
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Dynamic characteristics of multi-stage gear box coupling at different speeds
The dynamic response characteristics of shearer cutting part under rated working condition are analyzed, and the dynamic deformation and dynamic
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Wide application of low speed and heavy load gear transmission system
Low speed and heavy load gear transmission system is widely used in every lifeline of national economy, such as gantry
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Dynamic characteristics of multi-stage gear transmission box coupling in shearer cutting section
Shearer cutting part is a rocker gear box. The rocker box is a hollow cantilever structure, the free end of
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The gear dynamic model adopts the hypothesis of small deformation
In dynamic modeling, the cutting part of shearer is divided into two parts: transmission system and rocker box. The transmission
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Dynamic modeling of multi-stage gear transmission box coupling for shearer cutting part
Dynamic modeling is the basis of gear system dynamics research. From the perspective of gear dynamics, the cutting part of
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Technical route of dynamic research on multistage gear of shearer cutting part
Shearer cutting part is a multi-stage gear transmission system supported by rocker box, which has many parts and complex structure.
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Problems in dynamic research of multi stage gears in shearer cutting section
Based on the multi-body dynamics commercial software ADAMS simulation platform and considering the dynamic characteristics of the rocker box and
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Study on dynamics of multistage gears in shearer cutting section
The research on gear dynamics of shearer cutting part started late at home and abroad, and the main achievements were
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Research on tooth profile modification of multistage gears
Profile modification is to modify the helical angle or axial profile of the gear according to the predetermined law according
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Research on profile modification of multistage gears
Profile modification is to remove trace material from the tooth surface along the direction of tooth height, so as to
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Bending fatigue test method of low speed and heavy load gears
The bending fatigue test was designed and completed according to GB / T 14230-1993. In the bending fatigue test, according
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Dynamic performance optimization of multistage gear system
The design of gear system is not limited to the static strength check, but the important content is to consider