Involute profile curve equation of bevel gear precision forging
1.Establish involute tooth profile curve equation The theoretical tooth profile curve of spur bevel gear is spherical involute. Because the […]
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Forming load of cold precision forging for spur bevel gear
According to the load stroke curve of the spur bevel gear in the figure, the load change can be basically
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Analysis of dynamic response characteristics of spiral bevel gear transmission
There are many methods to solve the dynamic response characteristics of spiral bevel gear transmission, such as analytical method, numerical
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Selection of methods for removing oxide scale in precision forging of bevel gears
For precision die forging, it is very important to remove the oxide skin on the bevel gear blank and forging
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“One fire two forging” forging process for bevel gears
The open die forging of bevel gear with friction press can not ensure that each tooth shape cavity can be
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Design of bevel gear preform
In the hot precision forging of bevel gears, the selection of preform shape and size is very important. It not
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Analysis of equal effect force distribution in cold precision forging of spur bevel gears
The stress reflects the stress on the blank of spur bevel gear and is the internal force per unit area.
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Analysis of natural frequency and vibration mode of spiral bevel gear transmission
According to the dynamic equation of spiral bevel gear transmission and the calculation method of natural characteristics introduced above, the
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Analysis of equivariant distribution in cold precision forging of spur bevel gears
Strain is a physical quantity that represents the magnitude of deformation, the accumulation process of plastic deformation that has occurred
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Principle of close net shape forming for closed precision forging of spur bevel gears
The forming process of closed type cold precision forging is shown in the figure. First, the upper and lower forming
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Distribution analysis of simulated velocity field in cold precision forging of straight bevel gears
The velocity field of the forging process of straight bevel gear directly reflects the metal flow law in the deformation
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Establishment of dynamic mathematical model of spiral bevel gear
As shown in the figure, the force analysis of the driven gear is carried out. The relative displacement xn of
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Influence of adjustment error of machining parameters of spiral bevel gear pinion on tooth surface contact
The table lists the precision adjustment values of the processing parameters of the spiral bevel gear pinion. The accuracy of
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Precision forging process of spur bevel gear
In addition to the commonly used hot precision forging, there are warm precision forging, cold precision forging and powder sintering
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Vibration model of spiral bevel gear transmission system
The figure shows the dynamic model of spiral bevel gear transmission system under elastic support. Establish a rectangular coordinate system,
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Drawing design of straight bevel gear forgings
According to the characteristics of spur bevel gear parts and the requirements of closed cold precision forging process, the following
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Influence of adjustment error of machining parameters of spiral bevel gear on tooth surface contact
The table lists the precision adjustment values of machining parameters of large wheels. The accuracy of one machining parameter is
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Forming process design of spur bevel gear
Precision forging technology of spur bevel gear. Among them, the closed precision forging is selected as the forming process. Taking
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Calculation of comprehensive stiffness of meshing teeth of spiral bevel gear
The comprehensive meshing stiffness of spiral bevel gear teeth refers to the comprehensive effect of each pair of teeth participating
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Part drawing of spur bevel gear
The common differential planetary gear is selected as the research object, and its parameters are shown in the table. Number
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Influence of radial tool position adjustment of spiral bevel gear pinion on contact condition
Adjust the radial tool position S1 when machining the small wheel. The table lists the different values of the radial
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Study on the influence of shaft intersection angle error on Gear Hobbing
The research on the influence of shaft intersection angle error on gear hobbing processing is now realized in combination with
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Influence of adjustment of high curvature correction coefficient of spiral bevel gear on contact condition
Adjust the tooth height correction factor KP during small wheel machining. Different values of the tooth height correction factor are
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Intersection angle error of gear hob installation shaft
During gear hobbing, the gear hob axis and workpiece axis must conform to a certain axis intersection angle. However, when
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Application test of negative modification spur gear
Take the center distance between the straight cylindrical gear hob and the straight cylindrical gear α Installation error e α=
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Influence of adjustment of vertical position correction of spiral bevel gear pinion on contact condition
Adjust the correction amount of vertical wheel position when machining spiral bevel gear small wheel Δ Em, the table lists
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Application test of positive displacement gear
When no external error is considered in gear hobbing, that is, the center distance installation error of gear hob is
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Principle of hypoid gear transmission
The main function of hypoid gear is to carry out spatial staggered shaft transmission. The so-called staggered shaft refers to
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Influence of pitch and taper distance adjustment of spiral bevel gear small wheel on contact condition
Adjusting spiral bevel gear small wheel generating gear pitch cone ΔR01, the table lists the different values of the pitch
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Concept of modified gear
Because the processing technology and cutting tools of the modified gear are not different from those of the standard gear,
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Transformation of spiral bevel gear coordinate system
The tooth surface equations of spiral bevel gears are expressed in vector form, and a lot of coordinate transformation work
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Error model of helical gear transmission considering integral error and tooth surface friction
The overall error is treated as a discrete point on the contact line of the helical gear to indicate the
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Determination of actual contact area of hypoid gear
In the contact area diagram of the hypoid gear TCA in the example, the theoretical contact area is smaller than
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Universal verification of digital simulation method for hobbing process of spur gear
Based on Mathematica software, draw the right tooth surface of one tooth of spur cylindrical gear, and combine the right
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Modeling of hypoid gear blank
Parameter Hypoid gear wheel Hypoid gear pinion Number of teeth 6 38 Outer end diameter /mm 100.24 380.6 Average pressure
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Establishment of tooth surface equation of hypoid gear pinion
The hypoid gear small wheel is machined by the denaturing method. The method of establishing the tooth surface equation of
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Simulate the tooth profile obtained by gear hob machining
By transforming the matrix MWG, the points e (Xe, ye, Ze) and f (XF, YF, ZF) in the gear coordinate
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Local conjugate contact and tooth surface modification principle of spiral bevel gear
When machining spiral bevel gears, the cutter head tip plane is tangent to the root cone rather than parallel to
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Establishment of hypoid gear tooth surface equation
According to the geometric relationship of the hypoid gear and the requirements of gear processing, the processing parameters of the
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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