Geometric constraints on the design of hypoid gears with small number of teeth and large reduction ratio
For the design of general hypoid gear, AGMA standard requires that the transmission conditions of hypoid gear pair must be […]
Scientific
Scientific
Scientific
Analysis of dynamic load characteristics of spiral bevel gear transmission with additional damping ring
According to the method of solving the dynamic load characteristics of spiral bevel gear system, the positive pressure N1 =
Scientific
Calculation of precision forging forming force of spur bevel gear
Several common formulas for calculating the precision forging forming force of spur bevel gears are given below. Formula 1: Where
Scientific
Establishment of finite element model of bevel gear
1.Mechanical model In the process of precision forging of bevel gear, the elastic deformation part of the material is far
Scientific
Stress distribution analysis of planetary gear pre forging simulation
Stress is the internal force per unit area, which reflects the stress of planetary gear blank. Figure 1 and 2
Scientific
Structural characteristics of final forging die for planetary gear
As shown in the figure, the structure diagram of the planetary gear final forging die is given. Since the final
Scientific
Simulation machining of hypoid gear pinion
The machine tool and tool used for machining hypoid gear small wheel are the same as that of large wheel,
Scientific
Analysis of inherent characteristics of spiral bevel gear transmission with additional damping ring
The key to the influence of the damping ring on the dynamic characteristics of the system lies in the positive
Scientific
Model selection of precision forging equipment for spur bevel gears
When selecting the tonnage of friction press required for precision forging straight bevel gear, first calculate the precision forging forming
Scientific
Analysis of strain rate distribution of planetary gear pre forging simulation
Strain is a physical quantity that represents the magnitude of deformation, the cumulative process of plastic deformation and the development
Scientific
Design of bevel gear flash groove
The bevel gear flash groove is composed of back bevel flash groove and horizontal flash groove. The planetary gear flash
Scientific
Tooth profile design of bevel gear die
The tooth profile of precision forging die cavity bevel gear is based on the tooth profile of hot forging bevel
Scientific
Structure characteristics of pre forging die for planetary gear
As shown in the figure, the structure diagram of the planetary gear pre forging die is given. The tooth die
Scientific
Establishment of dynamic mathematical model of spiral bevel gear transmission with additional damping ring
According to the stress analysis of the driven gear, the relative displacement xn of the two spiral bevel gears along
Scientific
Design of bevel gear pre forging
The purpose of designing the bevel gear pre forging is to ensure that the metal can fill the final forging
Scientific
Analysis of velocity field distribution of planetary gear pre forging simulation
The velocity field of planetary gear pre forging directly reflects the metal flow law of the whole deformation process. As
Scientific
Tooth profile design of bevel gear hot forging
The tooth profile of hot forging bevel gear is the basis for designing and inspecting the tooth profile of die
Scientific
Establishment of dynamic model of spiral bevel gear transmission with additional damping ring
The figure shows the dynamic model of spiral bevel gear transmission system with additional damping ring under elastic support. Establish
Scientific
Forging design of planetary gear and half shaft gear
Fig. 1 shows the forging drawing of planetary gear and half shaft gear. When formulating the forging drawing of bevel
Scientific
Tooth profile design of bevel gear forgings at room temperature
In the “one fire two forging” process for forming bevel gears, the tooth profile of hot forgings is obtained by
Scientific
Finite element simulation of planetary gear forging process
The finite element simulation software DEFORM-3D is used to simulate the forging process of “one fire two forging” of planetary
Scientific
Influence of input speed on dynamic load performance of spiral bevel gear transmission
The change of input speed is directly reflected in the dimensionless meshing frequency ω H changes. The dynamic load coefficient
Scientific
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
Scientific
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
Scientific
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
Scientific
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
Scientific
“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
Scientific
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
Scientific
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.
Scientific
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
Scientific
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
Scientific
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
Scientific
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
Scientific
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
Scientific
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
Scientific
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
Scientific
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
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