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, […]
Scientific
Scientific
Scientific
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
Scientific
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
Scientific
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
Scientific
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
Scientific
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
Scientific
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
Scientific
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
Scientific
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
Scientific
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
Scientific
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=
Scientific
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
Scientific
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
Scientific
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
Scientific
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
Scientific
Concept of modified gear
Because the processing technology and cutting tools of the modified gear are not different from those of the standard gear,
Scientific
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
Scientific
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
Scientific
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
Scientific
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
Scientific
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
Scientific
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
Scientific
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
Scientific
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
Scientific
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
Scientific
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
Scientific
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
Scientific
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
Scientific
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
Scientific
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
Scientific
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
Scientific
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
Scientific
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
Scientific
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
Scientific
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
Scientific
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
Scientific
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
Scientific
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
Scientific
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
Scientific
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
Scientific
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
Scientific
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
Scientific
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
Scientific
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
Scientific
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
Scientific
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
Scientific
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
Scientific
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
Scientific
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
Scientific
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
Scientific
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
Scientific
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
Scientific
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
Scientific
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
Scientific
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
Scientific
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
Scientific
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
Scientific
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
Scientific
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
Scientific
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