Basic governing equations of spiral bevel gear pair in fluid domain
The spiral bevel gear pair involved in the calculation is placed in a given reduction gearbox. If the wind shield […]
The spiral bevel gear pair involved in the calculation is placed in a given reduction gearbox. If the wind shield […]
Based on ease-off theory, a high-order contact analysis method for spiral bevel gear tooth surface is proposed. Compared with previous
The contact strength is a key link to be considered in the design of spiral bevel gears. The strength calculation
Parameter name Parameter value Tooth ratio 31/26 Large end modulus / mm 8.654 Helix angle / (°) 35 Pressure angle
According to the relevant provisions of GB / T 11365-2019 standard, the specific accuracy values of spiral bevel gears and
Taking the working surface of a pair of spiral bevel gear pairs that can be paired (in which the large
The main indexes of meshing performance of spiral bevel gears include transmission error, tooth surface impression and design coincidence degree.
Spiral bevel gear transmission is widely used in high-speed and heavy-duty gear transmission systems with intersecting transmission of two axes,
In the reliability analysis of spiral bevel gear structure, there are inevitably uncertainties related to the external environment, material characteristics,
As shown in the figure, the included angles between the five contact paths and the root cone on the convex
Spiral bevel gear has the advantages of stable transmission, low vibration and noise and large bearing capacity, which makes it
The size and position of the contact area of spiral bevel gear can reflect the contact performance of spiral bevel
The variation law of actual speed and torque can reflect the approximate meshing characteristics of spiral bevel gears. In order
In order to obtain the real meshing performance of spiral bevel gear in reduction box, the meshing performance parameters were
The load contact analysis method of spiral bevel gear can quickly and efficiently obtain its meshing transmission characteristics, but the
In order to study the influence of different speed and load conditions on the gear stress in the meshing transmission
After the calculation, extract the speed change law of spiral bevel gear meshing transmission under various working conditions, as shown
The dynamic loading analysis adopts the same finite element mesh model as the static analysis, but the dynamic explicit analysis
Spiral bevel gears are widely used in mechanical transmission systems with intersecting or staggered shafts, and their tooth surface accuracy
The finite element static analysis method can be used to analyze the load contact of spiral bevel gear in detail,
According to the formula, the value of each calculation coefficient and the basic parameters of spiral bevel gear, the values
In order to further analyze the tooth surface contact stress and tooth root bending stress of spiral bevel gear under
The contact stress of tooth surface and the bending stress of tooth root affect the working performance of gear, such
The coincidence degree represents the average value of the number of wheels participating in meshing at the same time. The
After the calculation is completed, the change laws of contact force of four adjacent tooth surface contact pairs under the
After the calculation, in order to obtain the meshing transmission accuracy of spiral bevel gear, in the ABAQUS post-processing module,
The basic parameters of spiral bevel gears are shown in Table 1. Parameters Driving wheel Driven wheel Number of teeth
According to the geometric characteristics of spiral bevel gear, the gear can be divided into multiple independent teeth with the
The finite element analysis method of spiral bevel gear has gradually developed into a widely used numerical analysis method, and
Spiral bevel gears are widely used in aviation high-speed transmission systems because of their good load capacity, smooth transmission and
The gear tooth surface obtained by virtual machining and the gear tooth surface actually processed by the machine tool are
According to the virtual machining theory, the geometric model of spiral bevel gear is created. The tooth system of spiral
With the development of computer technology, the method of using virtual machining technology to create gear geometric model has been
The tooth profile of spiral bevel gear is a complex free-form surface. At present, its measurement is mainly carried out
The correctness of research methods and theories needs to be verified by relevant experiments. The experiment is divided into two
The earlier gear cutting of spiral bevel gear was carried out on mechanical gear milling machine. The mechanical gear milling
According to the influence law of the impression shape on the internal excitation of the spiral bevel gear, a pair
The meshing impression shape of the spiral bevel gear is an important index to measure its meshing quality, which will
The geometric modeling of spiral bevel gear, static loading contact analysis, dynamic loading contact analysis, the design of closed power
After obtaining the comprehensive meshing stiffness of spiral bevel gear, in order to obtain the stiffness excitation force curve of
Through experimental measurement and finite element simulation analysis, the spiral bevel gear is analyzed and studied respectively, and the meshing
When calculating the meshing stiffness of single tooth with finite element method, first extract the contact force resultant force of
In order to carry out experimental research on spiral bevel gear, a spiral bevel gear transmission is designed first. According
Stiffness excitation is the phenomenon that the time-varying meshing stiffness of the gear produces the dynamic meshing force of the
According to the working condition of spiral bevel gear simulated in dynamic loading contact analysis, the value range of calculation
After obtaining the cutting adjustment parameters and cutter head parameters of the large and small gears of spiral bevel gear,
In order to obtain the meshing characteristics of spiral bevel gear under dynamic loading, this chapter first introduces its dynamic
Through the above contact characteristic control methods and contact area analysis methods, we can easily obtain the desired contact area
It is necessary to create a three-dimensional geometric model of the gear before carrying out the loaded contact analysis. For
It can be seen from the figure that with the increase of the inclination angle of the large and small
According to the machining principle, meshing theory and virtual machining technology of spiral bevel gear, the process of spiral bevel
The spiral bevel gear processed by face hobbing adopts the principle of indirect generation method to ensure that the large
The main research work is to analyze and study the meshing characteristics of spiral bevel gear with transmission ratio of
The spiral bevel gear for face hobbing of spiral bevel gear generally adopts equal height tooth system, and its root
Spiral bevel gear plays an important role in transmission machinery. However, its tooth surface shape, transmission characteristics, the structure of
The forming process of bevel gear face hobbing can be regarded as a meshing transmission between the generating wheel and
Gear transmission is an important mechanical transmission mode. The continuous revitalization of machinery manufacturing industry has driven the rapid development
This paper studies the theory of tooth surface forming principle, geometric parameter design, cutting adjustment calculation, tooth contact characteristic control
With the wide application of gear measurement center in bevel gear tooth profile measurement, it is possible to reverse the
The application of fully NC spiral bevel gear machining equipment greatly improves the machining accuracy of spiral bevel gear, and