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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Prediction of undeformed chip shape of cylindrical gear scraping motion
The author uses the dexel based solid modeling system (module works) to realize the kinematic model of strong tooth scraping.
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Analysis of dynamic response characteristics of spur gears
In order to study the vibration characteristics of spur gear pair considering the randomness of error and tooth surface friction,
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Dynamic model of spur gear pair considering random error and tooth surface friction
As shown in Figure 1, the 3-DOF bending torsion coupling dynamic model of spur gear pair is established by using
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Dynamic contact area of spiral bevel gear
In order to study the influence of different dynamic loading conditions on the contact area of spiral bevel gear, the
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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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Construction of limit state function of spiral bevel gear
Take the following values for relevant parameters: Z H, and take 2 according to the tooth profile angle and helix
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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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Dynamic contact force of spiral bevel gear
In order to study the contact force variation characteristics of spiral bevel gears under dynamic meshing, the contact force variation
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Experimental results and Discussion on the effect of heat treatment process on full immersion corrosion of Automobile Gears
The mass loss rate time curve of automotive gear test materials after normalizing and isothermal annealing in 0.6mol/l NaCl solution
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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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Influence of gear hobbing cutting speed on tool edge temperature
The selection of gear hobbing cutting speed should consider the tool material and appropriate coating, the modulus of the processed
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Static contact area of spiral bevel gear
The size and position of the tooth surface contact area of spiral bevel gear affect the vibration, noise and bearing
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Influence of gear hobbing hob diameter on tool grinding times
The gear hobbing hob with modulus of 2, number of grooves of 12 and number of heads of 2 is
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Non radial error and axial pitch error of rake face of gear hobbing hob
The rake angle of the gear hobbing hob is generally 0 °, and its rake face should pass through the
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Cutting force in gear hobbing
In the meshing process of gear hobbing, the gear hobbing hob is equivalent to the worm, so its stress condition
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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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Frequency calculation of Automobile Gears
Automobile gear, bearing and differential will produce vibration when working. Once there is a fault, the amplitude distribution of its
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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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Finite element modeling and analysis steps of static loading contact analysis of spiral bevel gear
The working condition of spiral bevel gear pair can be simulated in computer by properly preprocessing the finite element mesh
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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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Experiment on automatic correction of tooth profile deviation of spiral bevel gear
Due to the large number of moving axes of spiral bevel gear milling machine, there may be errors in the
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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:
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Force analysis of double point contact equal angle spiral bevel gear
The bevel gear model is analyzed by finite element method. The grid size setting, physical parameters, boundary conditions and their
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Dynamic performance analysis of modified straight bevel gear
The dynamic analysis of the straight bevel gear system is carried out by using romax software, and the dynamic response
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Influence of error coupling compensation on meshing characteristics of herringbone gear
According to the finite element simulation results of and axial displacement, the assembly offsets of 0.05 mm, 0.1 mm, 0.15
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Conjugate curve equation of pure rolling contact of bevel gear
For a pair of bevel gears, to maintain pure rolling contact means that there is no relative sliding motion between
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Analysis of transmission error and contact load of modified spur bevel gear
1) Tooth isometric modification The straight bevel gear model with equidistant modification of tooth direction is imported into romanxdesigner software
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Axial force analysis of herringbone gear with centering error
As the force along the axis of gear meshing, the axial force determines the axial vibration of gear, and indirectly
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Transmission error of straight bevel gear transmission
The transmission error of straight bevel gear is one of the main internal incentives to study the dynamic performance of
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Axial displacement analysis of herringbone gear with centering error
When the herringbone gear pair with alignment error is meshed, the eccentric load on the tooth surface will have a
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Tooth contact analysis of herringbone gear with centering error
Based on the accuracy standard, combined with the structural constraints of large energy machinery and equipment and the requirements of
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Solution of dynamic differential equation of straight bevel gear
For a long time, because there is no effective mathematical method to solve the dynamic equation of straight bevel gear,
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Establishment of dynamic model of spur bevel gear transmission
Only by establishing an accurate mathematical model of gear transmission, can the dynamic simulation analysis of gear transmission process be
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Three dimensional solid modeling of modified involute straight bevel gear
According to the determined modification parameters and combined with the established straight bevel gear model, the tooth profile arc modification
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Load contact analysis of herringbone gear with centering error
In order to verify the accuracy of the load contact analysis model of herringbone gear with centering error, a three-dimensional
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Load contact analysis model of herringbone gear with centering error
Based on the helical gear LTCA model obtained by Litvin et al. Based on the finite element loading contact analysis
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Machining simulation of two axis linkage milling of spiral bevel gear
Based on the establishment of the simplified model, gear blank model and tool model of the two-axis linkage gear cutting
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Implementation scheme of two axis linkage gear cutting of spiral bevel gear
It can be seen from the analysis that the two-axis linkage cutting machining of spiral bevel gear is mainly composed
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Digital modeling technology of spiral bevel gear
The spiral bevel gear calculation software is used to analyze the simulated contact mark. The calculated meshing area is compared
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Simulation of machining face gear with spherical hob
The gear hobbing process of face gear spherical hob is simulated by VERICUT software. Since the minimum number of undercutting
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Machining simulation of three-axis linkage milling of spiral bevel gear teeth
Based on the establishment of the simplified model, gear blank model and tool model of the gear cutting machine tool,
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Profile equation of face gear hobbing
The coordinate system of face gear hobbing is established, as shown in Figure 7. The fixed coordinate system SH0 (xh0,
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Cutting principle of convex tooth surface based on generation line of spiral bevel gear tooth surface
Based on the analysis of the generation principle of convex tooth surface, it can be seen that the convex tooth
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Basic worm equation of spherical hob for face gear
Taking right-hand rotation as an example, the coordinate system for the forming of face gear spherical hob based worm is
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Key geometric elements and names of spiral bevel gears
The tooth profile of spiral bevel gear is mainly composed of concave tooth surface, convex tooth surface, tooth top part
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Design principle of spherical hob based worm for face gear
Similar to the evolution from rack to ordinary gear hob, the evolution process from cylindrical gear to spherical hob based
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Influence of input torque on dynamic equation of bevel gear
In order to consider the influence of torque on the dynamic response of central transmission bevel gear, keep the input
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Tooth surface equation of face gear
The forming of face gear tooth surface is based on the generating cutting of cylindrical spur gear shaper and face
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Common heat treatment defects of gears and their prevention methods
1. Cracks 1) In the carburizing diffusion stage, the carbon potential is high, the carburizing layer carbon concentration is too
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Defects of gear heat treatment and its influence
Whether carburizing quenching, carbonitriding quenching, induction heating quenching or overall heating quenching, the possible heat treatment defects during gear quenching
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Traveling wave vibration speed of bevel gear
After the natural frequency and vibration mode of bevel gear are determined, the resonance speed diagram shown in the figure
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Failure analysis of heat treatment crack of spiral bevel gear
(1) Analysis of crack properties From the crack morphology, the crack originates from the stress concentration. Whether the root of
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Process and results of heat treatment crack failure test of spiral bevel gear
(1) Macro morphology of crack: observe the crack morphology of three pairs of spiral bevel gears from the appearance, as
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Development and types of Involute Gears
Gears are widely used in mechanical transmission devices and are one of the common mechanical parts. Human beings began to
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Calculation of normal deviation of tooth surface of logarithmic spiral bevel gear
When measuring the tooth surface of logarithmic spiral bevel gear, there is an error between the theoretical value and the
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NC programming and machining of spiral bevel gear tooth top rounding
The three-dimensional tooth digital model is obtained through reverse engineering modeling. The digital model only includes tooth width, face cone,
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Defects of gear heat treatment and its influence
Various defects produced during heat treatment of gears will have potential or obvious adverse effects on their quality and service