Selection of cutting path for gear hobbing
Calculate the tool travel according to Hoffmeister’s formula: Where: FA — axial tool path of gear hobbing cutting; H1max – […]
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Determination of the shifting length of gear hobbing hob
As shown in the figure, the tool shifting length of gear hobbing hob is calculated according to the following formula:
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Calculation of the length of generating area of gear hob
The calculation method of the length of the generating area of gear hobbing hob is shown in Figure 1. If:
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Calculation of working length of gear hobbing hob
The cutting process of gear hob should be divided into pre machining area and generating area; Most of the metal
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Selection principle of groove number of gear hob
Gear hobbing multi groove hob is shown in the figure. When using gear hobbing multi groove hob, the following conditions
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Influence of the number of hob slots on the tooth profile error of gear hobbing
The selection of gear hobbing multi groove hob has the following advantages: (1) Gear hob has many grooves and good
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Influence of the number of gear hobs on cutting efficiency
The number of hobs Z0 has an important influence on the machining time In some cases, the use of gear
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Influence of gear hob diameter on gear surface roughness
The selection of large diameter gear hobbing hob has the following advantages: (1) Under the condition of maintaining the same
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Influence of gear hob diameter on cutting efficiency
The relationship between the outer diameter of gear hobbing hob and hobbing time Ht is shown in the figure. Where:
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Calculation of main design angles of gear hob
Theoretically, the larger the rake angle of the gear hobbing hob, the smaller the cutting load of the cutter teeth.
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Cumulative error of groove circumferential pitch of gear hobbing hob
When the rake face of the chip holding groove is unevenly distributed relative to the center of the inner hole
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Original tooth profile angle error of gear hobbing hob
The linear part of the side edge of gear hobbing hob mainly completes the generation of gear tooth profile, but
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Calculation of Friction Arm on Helical Gear Meshing Surface
According to the change rule of the contact lines on the left and right sides of the pitch line in
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Influence of gear hobbing accuracy on gear machining error
The influence of gear hobbing hob accuracy on machining accuracy is shown in the figure. 100% of the total meshing
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Formation mechanism of gear hobbing profile error
Gear hobbing processing and application practice show that the manufacturing errors of machine tools, cutting tools and gear blanks are
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Stress analysis of gear hob shaft
According to the stress analysis of gear hobbing hob, further analyze the stress of gear hobbing hob shaft, as shown
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Cutting pattern and cutting area moment in gear hobbing
The cutting pattern of gear hobbing hob teeth reflects the metal process and tooth profile formation in the cutting groove
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Vibration caused by automobile gear assembly error
The speed of driving wheel is 1200 R / min, the meshing frequency of automobile gear is 160 Hz, the
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Forming method of gear hobbing tooth profile
The forming method of gear hobbing tooth profile is shown in the figure. Starting from the contact cutting between gear
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Vibration caused by natural frequency of automobile gear
All defective automobile gears will produce high-level pulses in operation, which will usually arouse the natural frequency (also known as
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Vibration caused by tooth profile error of automobile gear
The test diagram of vibration amplitude spectrum caused by tooth profile error of automobile gear is shown in Figure 1.
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Experimental results and Discussion on electrochemical corrosion of automotive gears by heat treatment process
At 25 ℃ and 0.001 V / s scanning speed, the Tafel curve of automobile gear test material 20mncr5 steel
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Effect of heat treatment process on salt spray corrosion test results and discussion of Automobile Gears
The 72 h salt spray corrosion surface morphology of 20mncr5 steel, an automobile gear test material after normalizing and isothermal
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Experimental materials and methods of heat treatment process on corrosion performance of Automobile Gears
1. Material preparation The automobile gear steel 20mncr5, which is widely used, is selected as the experimental material. The energy
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Detection of contact area of spiral bevel gear
The size and position of the contact area of spiral bevel gear can reflect the contact performance of spiral bevel
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Measurement of main performance parameters of spiral bevel gear
The variation law of actual speed and torque can reflect the approximate meshing characteristics of spiral bevel gears. In order
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Measurement of loading condition of spiral bevel gear
In order to obtain the real meshing performance of spiral bevel gear in reduction box, the meshing performance parameters were
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Design of spiral bevel gear test bench
The load contact analysis method of spiral bevel gear can quickly and efficiently obtain its meshing transmission characteristics, but the
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Finite element analysis of dynamic contact stress and bending stress of spiral bevel gear
In order to study the influence of different speed and load conditions on the gear stress in the meshing transmission
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Dynamic speed and transmission error of spiral bevel gear
After the calculation, extract the speed change law of spiral bevel gear meshing transmission under various working conditions, as shown
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Finite element modeling of dynamic loading contact analysis of spiral bevel gear
The dynamic loading analysis adopts the same finite element mesh model as the static analysis, but the dynamic explicit analysis
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Contact equation of spiral bevel gear under dynamic loading
The finite element static analysis method can be used to analyze the load contact of spiral bevel gear in detail,
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Theoretical analysis and comparison of static contact stress and bending stress of spiral bevel gear
According to the formula, the value of each calculation coefficient and the basic parameters of spiral bevel gear, the values
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Characterization of Nonlinear Coefficients of Carbon Steel Gears with Different Hardened Layer Thickness
According to the formula, the nonlinear ultrasonic coefficients of different samples are calculated according to the amplitude of the fundamental
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Theoretical calculation and analysis of static contact stress and bending stress of spiral bevel gear
In order to further analyze the tooth surface contact stress and tooth root bending stress of spiral bevel gear under
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Influence of time-varying mesh stiffness mean value on vibration characteristics of high speed helical gear transmission
In order to study the influence of the mean value of time-varying meshing stiffness of helical gears on the vibration
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Finite element analysis of static contact stress and bending stress of spiral bevel gear
The contact stress of tooth surface and the bending stress of tooth root affect the working performance of gear, such
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Vibration response of high speed helical gear drive under combined excitation
Input the obtained time-varying meshing stiffness curve and meshing impact curve into the dynamic equations at the same time to
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Influence of time-varying mesh stiffness amplitude on vibration characteristics of high speed helical gear transmission
In order to study the influence of the time-varying meshing stiffness amplitude of gears on the vibration characteristics of the
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Analysis of coincidence degree of spiral bevel gear
The coincidence degree represents the average value of the number of wheels participating in meshing at the same time. The
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Comparison of vibration response of helical gear transmission system under various excitation components
In order to study the influence of the above two excitation factors on the system vibration, the vibration speed diagram
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Static contact force analysis of spiral bevel gear
After the calculation is completed, the change laws of contact force of four adjacent tooth surface contact pairs under the
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A bending torsion shaft dynamic model of single-stage helical gear transmission
The high-speed helical gear drive of an electric vehicle is taken as the research object, and its structure diagram is
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Static transmission error of spiral bevel gear
After the calculation, in order to obtain the meshing transmission accuracy of spiral bevel gear, in the ABAQUS post-processing module,
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Simulation Model of Spiral Bevel Gear Pair
The basic parameters of spiral bevel gears are shown in Table 1. Parameters Driving wheel Driven wheel Number of teeth
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Finite element modeling of static loading contact analysis of spiral bevel gear
According to the geometric characteristics of spiral bevel gear, the gear can be divided into multiple independent teeth with the
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Contact analysis principle of spiral bevel gear under finite element loading
The finite element analysis method of spiral bevel gear has gradually developed into a widely used numerical analysis method, and
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Influence of compound optimization modification on time-varying meshing stiffness and time-varying meshing force of helical gears
(1) The influence of compound optimization modification scheme of top involute and tooth direction drum of long tooth profile of
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Tooth surface reconstruction of spiral bevel gear based on NURBS method
The gear tooth surface obtained by virtual machining and the gear tooth surface actually processed by the machine tool are
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Influence of drum shape optimization modification on time-varying meshing stiffness and meshing force of helical gears
There are three schemes for drum shape optimization modification of tooth profile, namely, the modification amount of driving wheel is
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Cutting modeling of spiral bevel gear blank
According to the virtual machining theory, the geometric model of spiral bevel gear is created. The tooth system of spiral
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Influence of tooth width on time-varying meshing stiffness and meshing force of helical gears
Figure 1 shows the influence curve of the pinion tooth width on the time-varying meshing force of the helical gear
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The Influence of Optimal Modification of Crease Arc on the Time varying Meshing Stiffness and Time varying Meshing Force of Helical Gears with Long Tooth Profiles
The optimal modification scheme of the top broken line arc of the long tooth profile is the modification amount of
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Adjusting parameters of spiral bevel gear NC machine tool
With the development of computer technology, the method of using virtual machining technology to create gear geometric model has been
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Nonlinear multi-body dynamics simulation of helical gear pair in electric vehicle gearbox
For the dynamics of nonlinear helical gear system, the solid collision method, the finite element transient analysis method and the
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Tooth profile measurement of spiral bevel gear with face hobbing based on Gear Measurement Center
The tooth profile of spiral bevel gear is a complex free-form surface. At present, its measurement is mainly carried out
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Influence of linear optimization modification of addendum with long tooth profile on time-varying meshing stiffness and meshing force of helical gears
The linear optimization modification scheme of long tooth profile addendum is the modification amount of driving gear 3 μ m.
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Influence of optimized modification on contact stress of helical gear pair
As shown in the figure, the three-dimensional cloud diagram of contact stress of No. 0 unmodified, No. 1 optimization scheme
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Influence of helix angle on time-varying meshing stiffness and meshing force of helical gears
Figure 1 shows the influence curve of helix angle on the time-varying meshing force of the helical gear pair at
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Machining experiment of face hobbing of controlled spiral bevel gear
The correctness of research methods and theories needs to be verified by relevant experiments. The experiment is divided into two