Development of machine tools for machining spiral bevel gears and hypoid gears abroad
In 1913, Gleason company of the United States successfully developed the first circular arc bevel gear machine with single tooth […]
In 1913, Gleason company of the United States successfully developed the first circular arc bevel gear machine with single tooth […]
Spiral bevel gears and hypoid gear pairs are used for motion and power transmission of vertical intersecting axes and spatial
According to the method of solving the dynamic load characteristics of spiral bevel gear system, the positive pressure N1 =
The research on spiral bevel gear machining machine tools and related technologies in China began in the 1970s, much later
Spiral bevel gear represents the most complex transmission form and the type of surface machining with high complexity at present.
The key to the influence of the damping ring on the dynamic characteristics of the system lies in the positive
The transmission advantage of spiral bevel gear is being widely used in the industrial field, and the technology of machining
According to the stress analysis of the driven gear, the relative displacement xn of the two spiral bevel gears along
Spiral bevel gear is one of the most widely used gears at present. Its processing technology and related meshing theory
The figure shows the dynamic model of spiral bevel gear transmission system with additional damping ring under elastic support. Establish
The change of input speed is directly reflected in the dimensionless meshing frequency ω H changes. The dynamic load coefficient
There are many methods to solve the dynamic response characteristics of spiral bevel gear transmission, such as analytical method, numerical
Because the damping ring of spiral bevel gear has the advantages of good vibration reduction effect, simple process and compact
According to the dynamic equation of spiral bevel gear transmission and the calculation method of natural characteristics introduced above, the
This paper makes a systematic analysis and Research on the vibration reduction of spiral bevel gear transmission based on additional
As shown in the figure, the force analysis of the driven gear is carried out. The relative displacement xn of
The table lists the precision adjustment values of the processing parameters of the spiral bevel gear pinion. The accuracy of
The dynamic characteristics of spiral bevel gear transmission system with additional damping ring are studied. The main contents are as
The figure shows the dynamic model of spiral bevel gear transmission system under elastic support. Establish a rectangular coordinate system,
The table lists the precision adjustment values of machining parameters of large wheels. The accuracy of one machining parameter is
The dynamic characteristics of spiral bevel gear transmission system are studied. The main contents are as follows: (1) Using the
The comprehensive meshing stiffness of spiral bevel gear teeth refers to the comprehensive effect of each pair of teeth participating
Adjust the radial tool position S1 when machining the small wheel. The table lists the different values of the radial
Spiral bevel gear is widely used in the high-speed stage of various mechanical transmission systems, such as aviation reducer system,
For assembly in CATIA, firstly, the driving and driven spiral bevel gears are respectively introduced into the rotating body, then
Adjust the tooth height correction factor KP during small wheel machining. Different values of the tooth height correction factor are
The tooth profile of spiral bevel gear is a spatial spherical involute, its tooth profile is a circular arc, and
The senior engineer team of ZHY Gear is conducting research on spiral bevel gears. This topic comes from the scientific
The dynamic characteristics of spiral bevel gear transmission with additional damping ring are studied, and the influence of damping ring
At present, the research on the design theory of spiral bevel gears at home and abroad mainly focuses on the
Adjust the correction amount of vertical wheel position when machining spiral bevel gear small wheel Δ Em, the table lists
Damping ring vibration and noise reduction technology was first discovered by R.E. Peterson based on experience and obtained a patent
After decades of unremitting efforts of Chinese scholars, China has thoroughly studied the basic technology and theory of Gleason spiral
Adjusting spiral bevel gear small wheel generating gear pitch cone ΔR01, the table lists the different values of the pitch
The tooth surface equations of spiral bevel gears are expressed in vector form, and a lot of coordinate transformation work
At present, the commonly used spiral bevel gears are mainly Gleason system represented by Gleason company and equal height gear
At first, China did not have its own spiral bevel gear technology system, and the spiral bevel gear technology applied
The advanced manufacturing technology and machine tools of spiral bevel gears have always been the guarantee for enterprises to maintain
In terms of spiral bevel gear theory, in the 1940s and 1950s, scientists such as e.wildhaber and m.l.baxter made a
In spiral bevel gear machining, there are many factors that affect the results of tooth contact analysis, such as the
When machining spiral bevel gears, the cutter head tip plane is tangent to the root cone rather than parallel to
As the basic component of mechanical transmission, spiral bevel gear is mainly used for the movement and power transmission between
The gear meshing principle, namely the conjugate surface principle, is the basic method to study the contact transmission of two
The hot forging process of spiral bevel gear blank is completed at high temperature, and the metallographic structure of metal
Taking the forging process of driving and driven spiral bevel gears as the research object, the forging process of gear
The stroke load curve of the die in the general forging process of the spiral bevel gear blank is shown
The CAD two-dimensional drawing of the upper and lower molds is shown in Figure 1. 1.Mold geometric model establishment According
Taking the initial forging temperature of spiral bevel gear as 1000 ° C, 1050 ° C and 1100 ° C
In the DEFORM-3D post-processing function, the time-dependent curves of the equivalent stress-strain and temperature at a certain point of the
Although a lot of research has been done on precision forging of spiral bevel gears at home and abroad, there
Through the stress-strain analysis and temperature analysis of the spiral bevel gear blank after hot forging, we know that the
1、 Establishment of geometric model Using pro/e4.0, the geometric model of extrusion process is established, including the geometric model of
Due to the problems in the free forging process of the cutting block, other forming methods are considered to replace
The forging process of driving spiral bevel gear blank also includes four steps: heating, drawing, die forging and trimming. That
The equivalent stress distribution of spiral bevel gear blank during final forging is shown in the figure. The maximum stress
1、 Metal flow law in extrusion process The metal velocity vector diagram of each stage of extrusion forming process is
The metal velocity vector diagram of each stage in the forging process of spiral bevel gear blank is shown in
The actual forging of spiral bevel gear (without punching and trimming) is shown in the figure. Comparing the numerical simulation
The metal velocity vector diagram of each stage in the upsetting process of spiral bevel gear blank is shown in
In view of the problems of large material waste and high cost caused by the traditional die design and process