Sliding friction analysis of helical gear meshing tooth surface
According to the meshing principle of helical gears, when a pair of helical gears enter into meshing and exit from […]
Scientific
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Kinematic Simulation of Involute Double Arc Helical Gear
Create a new assembly model in UG software, select “Add Part”, import the driving wheel and driven wheel, add the […]
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Grind the Gleason spiral bevel gear
Spiral bevel gears have the advantages of smooth transmission, large load capacity, low noise, and are widely used in aviation, […]
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China Gear Manufacturers: Innovations and Advancements in Gear Production
China gear manufacturers have made significant innovations and advancements in gear production, enabling them to compete globally and meet the […]
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Time-varying friction excitation and meshing efficiency of helical gears
Tooth friction is the main factor affecting the vibration noise and power loss of helical gear transmission system. It will […]
Scientific
Experimental results and analysis of vibration characteristics of planetary gears
The sampled signals are analyzed and processed in DH5922 dynamic signal test and analysis system software of Donghua Test. Figure […]
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Simulation and Verification of Three-direction Dexel Model for Spur Gear Hobbing
Gear hobbing is widely used in the manufacturing industry to produce high-quality straight cylindrical gears and helical cylindrical gears. Like […]
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Design of experimental scheme for vibration characteristics of planetary gears
The outer surface of the fixed internal gear of the linear conjugate planetary gear reducer with small tooth difference is […]
Scientific
Simulation analysis of vibration characteristics of planetary gears
As shown in Figure 1, the vibration acceleration in X, Y and Z directions at the selected nodes with input […]
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Dynamic Simulation Analysis of Engagement Force of Planetary Gears
When the load torque is 80 N · m, the input speed is 600 r/min, 1400 r/min and 2200 r/min, […]
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Understanding Stains and Discolorations in Heat Treatment
Stains and discolorations on the surface of heat-treated components can occur during various heat treatment processes. These stains and discolorations […]
Scientific
Mathematical model of planetary internal gear tooth profile
According to the principle of gear engagement, the mathematical model of the planetary gear internal gear profile can be described […]
Scientific
Mathematical model of planetary gear tooth profile
The external gear coordinate system S1: O1-x1y1 is established according to the parameters of the linear profile gear, as shown […]
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Linear conjugate planetary gear drive with small tooth difference
The linear conjugate tooth profile is studied, and the advantages of the linear conjugate tooth profile are applied to the […]
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Study on crack failure of planetary gear mechanism
In order to diagnose the crack fault of the planet gear of the planetary gear mechanism better, ZHY Gear has […]
Scientific
Rigid flexible coupling dynamic model of planetary gear mechanism
In the process of the above planetary gear mechanism simulation and analysis, the gear ring needs to be generated into […]
Scientific
Model of crack failure of planetary gear
Taking the crack fault of planetary gear as an example, the simulation analysis is carried out. Before simulation analysis, it […]
Scientific
Three dimensional gear model of planetary gear mechanism
The planetary gear mechanism of an automobile is composed of a sun gear, three planetary gears, a gear ring and […]
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Crack fault of planetary gear mechanism based on rigid flexible coupling model
At present, planetary gear mechanism has been widely used in the transmission systems of automobiles, ships, airplanes, excavators and loaders. […]
Scientific
Case Analysis of the Mathematical Model of Spur Gear Actual Coincidence
Take the traction spur gear of a certain type of locomotive as an example to calculate the actual coincidence before […]
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Analysis of the lubricating oil film thickness of spiral bevel gears
(1) From the experimental study, it can be seen that the change rule of the minimum oil film thickness is […]
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Planetary gear transmission structure of traction underactuated manipulator
A kind of traction underactuated pull in manipulator based on planetary gear mechanism is designed. The fingers of the manipulator […]
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Establishment of mathematical model for actual coincidence of spur gears
When the spur gear teeth enter the double-tooth meshing area, the two pairs of teeth theoretically contact at the same […]
Scientific
Design of planetary gear transmission structure of manipulator
In general, the underactuated manipulator driven by motor usually uses the dynamic coupling effect to realize the underactuated form of […]
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Gear Transmission Structure Design of Manipulator
The manipulator is the part that directly contacts with the target object and plays the role of clamping and pulling […]
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Traction underactuated manipulator based on planetary gear mechanism
As a key component of the robot end effector, the manipulator can realize the grasping operation of the target object […]
Scientific
Parameter design of hypoid gear with super reduction ratio
As shown in the figure, the geometric relationship of hypoid gear pitch cone is shown. The pitch circle radius r1 […]
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Comparison of tooth surface reconstruction of spiral bevel gears
Taking the large spiral bevel gear wheel of the same batch of automobile drive axle as an example, after the […]
Scientific
Self service method results of spiral bevel gears
The same batch of spiral bevel gears with the same spiral bevel gear material, CNC milling method and heat treatment […]
Scientific
Precise detection of spiral bevel gear
Under the condition of the same batch of spiral bevel and spiral bevel gears with the same spiral bevel gear […]
Scientific
Load characteristic analysis of tractor gear power output transmission system
In order to study the influence of rotary tillage working load on the power output transmission system, the tractor gear […]
Scientific
Simulation test verification of tractor gear dynamics model
To verify the accuracy of the model, the simulation results are compared with the test data in the time domain […]
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Simulation and experimental verification of tractor gear dynamics model
1. Model simulation During the model dynamics simulation, the input parameters of the simulation model are determined according to the […]
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Experimental verification of hobbing and finishing process for spiral bevel gears
The parallel axis finishing process is used to carry out theoretical, simulation and experimental research on the finishing scheme of […]
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Tractor gear train structure
Taking LX2204 tractor as an example, the structure diagram of the transmission system of the whole machine is shown in […]
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Vibration characteristics of tractor gear transmission under different rotary tillage loads
Rotary tillage operation is a typical field operation condition of tractors. During operation, 50% – 75% of the engine power […]
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Materials and Methods for Quenching SAE J403 Steel Parking Gear
1. Experimental materials The experimental material is SAEJ403 carbon steel. The chemical composition of SAE J403 carbon steel is shown […]
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Dynamic response analysis of aviation spiral bevel gear and vibration reduction structure of web hole
The research on vibration reduction and noise reduction of aviation spiral bevel gear transmission has always been the focus of […]
Scientific
Influence of meshing impact time on vibration characteristics of high speed helical gear transmission
In order to qualitatively study the influence of meshing impact time on the vibration characteristics of helical gear transmission, the […]
Scientific
Vibration response of high speed helical gear drive under meshing impact excitation
In order to study the vibration characteristics of the system under separate excitation of meshing impact, the meshing impact curve […]
Scientific
Vibration Response of High Speed Helical Gear Transmission Excited by Time varying Meshing Stiffness
Input the obtained time-varying meshing stiffness curve into the dynamic equations, obtain the vibration response of single-stage helical gear transmission […]
Scientific
Vibration Characteristics of High Speed Helical Gear Transmission Excited by Time Varying Meshing Stiffness
The calculated vibration accelerations in all directions of the helical gear are combined into “relative vibration accelerations a in the […]
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Precision Casting Technology for Automobile Castings
The precision casting forming technology of automobile castings refers to a kind of casting forming method. The castings produced by […]
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Analysis Conclusion of Wind Resistance Power Loss of Aviation Spiral Bevel Gear Pair
The windage power loss of aviation spiral bevel gear pair can be concluded through simulation analysis: 1) For the spiral […]
Scientific
Wind resistance power loss of spiral bevel gear pair
Figure 1 shows the pressure cloud diagram of the driven gear tooth surface. The pressure P is in MPa. It […]
Scientific
Wind resistance power loss result of spiral bevel gear pair
The numerical simulation results are shown in Table 1 and Table 2. Test No. Gap/mm Opening/(°) Wind resistance torque of […]
Scientific
Simulation of wind resistance power loss of spiral bevel gear pair
1. Simulation scheme design The numerical simulation calculation is carried out in two parts, one is the gearbox configuration without […]
Scientific
Model Solution Setting of Spiral Bevel Gear Pair
The model is solved with Fluent software, and the mesh file is imported into Fluent to set the boundary conditions; […]
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Technology in gear machining
Based on the development of control technology, the development speed of manufacturing industry has also been greatly improved to a […]
Scientific
Turbulence model equation of spiral bevel gear pair
1) Fluid Reynolds number calculation Where, v is the characteristic velocity of the flow field, in m/s; L is the […]
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Profile modification and vibration reduction of helical gear of electric vehicle reduction box
Based on the multi-body dynamics, statics and acoustics of the reduction box and gear system of the electric vehicle, the […]
Scientific
Basic governing equations of spiral bevel gear pair in fluid domain
The spiral bevel gear pair involved in the calculation is placed in a given reduction gearbox. If the wind shield […]
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Profile modification, vibration reduction and noise reduction of helical gear of electric vehicle reduction box
(1) At present, domestic and foreign research on the helical gear modification technology is almost concentrated on the simultaneous tooth […]
Scientific
Influence of optimal modification of addendum involute of long tooth profile on time-varying meshing stiffness and time-varying meshing force of helical gears
The optimal modification scheme of the addendum involute of the long tooth profile is the modification amount of the driving […]
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Preliminary optimization, modification and meshing contact analysis of helical gear pair in electric vehicle reduction box
Taking the helical gear pair of a reduction box of an electric vehicle as the research object, the influence of […]
Scientific
Influence of optimal modification of addendum arc of long tooth profile on time-varying meshing stiffness and time-varying meshing force of helical gears
The optimal modification scheme of the addendum arc of the long tooth profile is 5% of the modification amount of […]
News
Influence of optimized profile modification on power loss of helical gear pair
Wu Luji believes that the power loss directly determines the transmission performance of the helical gear, so it is necessary […]
Scientific
Influence of optimized modification on sliding coefficient of helical gear pair
The sliding coefficient is an important parameter to measure the relative sliding degree between the tooth surfaces of the meshing […]
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Influence of optimized profile modification on transmission efficiency of helical gear pair
It can be seen from the figure that the efficiency of helical gear transmission after the optimization and modification of […]
Scientific
Compound modification scheme of helical gear
In order to further reduce the transmission error of the helical gear pair, it is necessary to consider the composite […]