Three dimensional meshing simulation of gear hob and spur gear tooth surface
Without considering the installation error Σ e of the shaft intersection angle Σ, the helix angle of spur gear β […]
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Meshing principle of spiral bevel gear
The gear meshing principle, namely the conjugate surface principle, is the basic method to study the contact transmission of two
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Solving the intersection of gear tooth surface normal and gear hob involute helical surface
From the three-dimensional meshing model of gear hob and gear, it can be assumed that each point on the gear
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Analysis of stroke load curve in the total forging process of spiral bevel gear blank
The stroke load curve of the die in the general forging process of the spiral bevel gear blank is shown
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Three dimensional meshing model of gear hobbing
During gear hobbing, the hob axis and gear axis must meet a certain axis intersection angle. The installation axis intersection
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Simulation of tooth surface model of spur gear
According to the parameters of spur gear, the indexing circle radius R2 of spur gear is: Where: M2 — modulus
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Numerical simulation of forging process of driving spiral bevel gear blank
The CAD two-dimensional drawing of the upper and lower molds is shown in Figure 1. 1.Mold geometric model establishment According
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Influence of initial forging temperature and friction coefficient on forming effect of spiral bevel gear
Taking the initial forging temperature of spiral bevel gear as 1000 ° C, 1050 ° C and 1100 ° C
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Analysis of stress-strain and temperature variation with time in forging process of spiral bevel gear blank
In the DEFORM-3D post-processing function, the time-dependent curves of the equivalent stress-strain and temperature at a certain point of the
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Establishment of tooth surface coordinate system of spur gear
The pressure equation at any point on the spur tooth surface of the cylindrical gear α ， The expanded length
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Influence of die structure of spiral bevel gear forging blank on forming effect
Through the stress-strain analysis and temperature analysis of the spiral bevel gear blank after hot forging, we know that the
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Numerical simulation of forging and extrusion process of driving spiral bevel gear blank
1、 Establishment of geometric model Using pro/e4.0, the geometric model of extrusion process is established, including the geometric model of
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Forging and drawing forming method for driving spiral bevel gear blank
Due to the problems in the free forging process of the cutting block, other forming methods are considered to replace
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Numerical simulation of forging process of driving spiral bevel gear blank
The forging process of driving spiral bevel gear blank also includes four steps: heating, drawing, die forging and trimming. That
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Equivalent stress analysis of spiral bevel gear blank during final forging
The equivalent stress distribution of spiral bevel gear blank during final forging is shown in the figure. The maximum stress
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Establishment of tooth surface coordinate system of spur gear
Spur cylindrical gear coordinate system: SG, (OG: XG, YG, ZG) take the center of spur cylindrical gear as the origin
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Numerical simulation of forging and extrusion process of driving spiral bevel gear blank
1、 Metal flow law in extrusion process The metal velocity vector diagram of each stage of extrusion forming process is
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Overall error curve of helical gear transmission
According to the actual meshing sequence of the helical gear, the overall error curve of the unit helical gear pair
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Metal flow law in die forging process of spiral bevel gear blank
The metal velocity vector diagram of each stage in the forging process of spiral bevel gear blank is shown in
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Tooth surface equation of gear hob
Based on the gear hob coordinate system: SW, (ow: XW, YW, ZW), the involute helicoid model of gear hob is
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Ease_off Example analysis of vibration reduction optimization for hypoid gear
In order to study the relationship between vibration and stiffness, the meshing stiffness and frequency spectrum of different modified tooth
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Metal flow law in upsetting process of spiral bevel gear blank
The metal velocity vector diagram of each stage in the upsetting process of spiral bevel gear blank is shown in
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Contact pressure distribution of helical gears
The contact pressure history curve during helical gear meshing is shown in Figure 1. It can be seen that the
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Establishment of gear hob coordinate system
Based on the selection of basic worm, it is determined that the gear hob selected in this subject is involute
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Ease_ Off example of vibration reduction optimization for hypoid gear
For high-precision hypoid gear pairs, in order to increase the actual coincidence degree after loading, the design of large inclination
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Calculation of time-varying meshing stiffness of helical gears
The meshing of helical gears can be regarded as line contact, and the load changes and distributes along the contact
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Contact analysis of modified helical gear
1. Law of equivalent stress and time change during helical gear meshing The variation law between the dynamic contact equivalent
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Basic attribute setting of spiral bevel gear blank and cutting board
The spiral bevel gear blank is set as a plastic body. Determination of initial forging temperature of spiral bevel gear
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Deformation measurement of straight bevel gear split blank
Through the measurement of the straight bevel gear split blank with the coordinate measuring instrument, it can be found that
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Integral error model of helical gear transmission
The overall error curve of helical gear is a complete error curve of helical gear, which is formed by measuring
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Expression of ease off modification tooth surface of hypoid gear pinion
According to the meshing theory and installation relationship of hyperboloid gear, the gear tooth surface is regarded as an imaginary
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Analysis and calculation of helical gear after changing speed conditions
Increase the speed of helical gear from 25rad / s to 35rad / s, and keep the torque unchanged. Using
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Error of generating surface of gear hobbing hob
When machining and manufacturing gear hobs, there is an error between the generating surface of gear hobs and the theoretical
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Gear cutting processing of straight bevel gear split wheel blank
Before machining the straight bevel gear to split the wheel blank, first measure the flatness of the upper and lower
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Principle of helical gear profile modification
Because the coincidence degree of helical gear is not an integer, its meshing transmission process is alternating between single and
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Equivalent stress nephogram of helical gear
(1) Equivalent stress nephogram of helical gear at 0.0025s It can be seen from Fig. 1 that the contact stress
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Time varying contact line load distribution of helical gears
The load distribution along the contact line is affected by the position and length of the helical gear contact line.
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Calculation of helical gear modification drum shape and determination of drum shape center
(1) Through analysis, it can be seen that there is no mechanism to determine the size of helical gear drum
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Classification of tangential and axial machining errors of gear hobbing
The machining error of gear is determined by the process error factors of machine tool, cutting tool, wheel blank and
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Machining technology and NC machining of straight bevel gear split gear blank cutting
According to the structural characteristics and the complexity of the tooth profile of the split straight bevel gear, the vertical
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Determination of axial position of gear hob
The alignment of gear hob refers to the coincidence degree between the symmetry axis of any tooth (or groove) of
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Influence of cutting ratio of wheel blank on deformation of spur gear with different modulus
Ensure that the diameter of the spur gear is 3600mm, change the modulus of the spur gear to make it
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Second order superharmonic resonance response of helical gear drive
Figure 1 shows the influence curve of friction on the second-order superharmonic resonance. With the increase of friction, the vibration
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Variation law of equivalent stress and time in helical gear meshing process
As shown in the figure, the dynamic contact equivalent stress of helical gear and the history curve changing with time
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Nephogram of contact pressure distribution and contact state of helical gear
Nephogram of contact pressure during helical gear meshing: It can be seen from Figure 1 that the contact pressure is
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Time varying contact line load model for spur gears
The load distribution rate of spur gear in the double tooth meshing area near the root of the tooth is
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Adjustment of installation angle of gear hob
During gear hobbing, the gear hob axis and workpiece axis must conform to a certain axis intersection angle. Therefore, the
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Analysis of time-varying contact line characteristics of helical gears
Helix angle is an important structural parameter of helical gear, and it is also the main factor causing time-varying contact
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Dynamic simulation and calculation of helical gear model with different support shaft stiffness
The simulation process of helical gear dynamic contact has been introduced in detail before. The mesh division is also divided
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The influence of the cutting proportion of the wheel blank on the deformation of spur gears with different diameters
By changing the thickness of spur gear split wheel blank and carrying out finite element analysis on spur gear blank
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Dynamic characteristics of helical gear transmission considering tooth friction
The dynamic characteristics of the main influencing factors of helical gear vibration and noise are studied. Considering the dynamic characteristics
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Influence of helical gear accuracy grade on Meshing Impact
Helical gear accuracy mainly controls the transmission accuracy between helical gears during operation, such as transmission stability, instantaneous speed fluctuation,
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Cloud chart of equivalent stress distribution during helical gear meshing
Pressure nephogram during helical gear meshing: It can be seen from figures 1 to 4 that when two helical gears
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Establishment of time-varying contact line load model for spur gears
The elastic potential energy u formula of spur gear teeth is written as: Where: ux – bending potential energy; un
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Selection of basic worm of gear hob
Gear hob is one of the most widely used high-efficiency gear machining tools. As shown in Figure 1, it is
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Effect of support shaft stiffness on dynamic contact of helical gear
In fact, the helical gear is installed on the support shaft. When the gear teeth transmit power through the support
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Algorithm verification of time-varying contact line model for helical gears
The provided helical gear parameters are substituted into the algorithm in this paper. The comparison of calculation results is shown
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Thickness and deformation of straight bevel gear blank
The simulation results show that the deformation of the split gear is related to the thickness. In order to determine
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Main frequency resonance response of helical gear transmission
Figure 1 shows the influence curve of helical gear tooth surface friction coefficient on dominant frequency resonance. It can be
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Tooth direction modification method of involute helical gear
In recent years, the academic circles have made great progress in the research of helical gear modification methods. The modification