Application test based on gear hobbing model simulation of spur gear
Gear as the core mechanical foundation. Despite the high requirements for the manufacturing and installation accuracy of gears, with the […]
Gear as the core mechanical foundation. Despite the high requirements for the manufacturing and installation accuracy of gears, with the […]
According to the parameters of spur gear, the indexing circle radius R2 of spur gear is: Where: M2 — modulus
The pressure equation at any point on the spur tooth surface of the cylindrical gear α , The expanded length
Spur cylindrical gear coordinate system: SG, (OG: XG, YG, ZG) take the center of spur cylindrical gear as the origin
Before the 1990s, the research and production of gear forging were mainly based on physical simulation. That is because the
The research on spur gear forging at home and abroad mainly focuses on the precision forging of spur gears. The
Ensure that the diameter of the spur gear is 3600mm, change the modulus of the spur gear to make it
The load distribution rate of spur gear in the double tooth meshing area near the root of the tooth is
By changing the thickness of spur gear split wheel blank and carrying out finite element analysis on spur gear blank
The elastic potential energy u formula of spur gear teeth is written as: Where: ux – bending potential energy; un
Figure 1 shows the meshing diagram of spur gear. Single tooth and double tooth meshing are carried out alternately. The
Gear error is another important excitation source of gear vibration and noise. The error is the difference between the actual
The causes of spur gear vibration and noise are complex, and there are many sources. It has always been a
In the early research, because the dynamic impact theoretical analysis and experimental analysis of tooth friction are also limited, the
The dynamic excitation of spur gear transmission system is an important part of studying the dynamic characteristics of spur gears,
Scholars at home and abroad have also done a lot of research and Analysis on the meshing impact of gear
Spur gear transmission is widely used in the fields of machinery, electronics, textile, metallurgy, mining, automobile, aviation, aerospace and shipbuilding.
At present, there are many methods to modify spur gears. The main methods include tooth profile modification and tooth direction
The mechanical properties of spur gear system have an important influence on the whole transmission. In recent years, the research
As shown in the figure, the forming process of the tooth profile surface of the involute straight tooth spur helical
This paper mainly studies spur gears from the perspective of dynamic contact analysis and consults relevant data at home and
As shown in Figure 1, the distribution of blank velocity field in the forming process after the optimization of spur
As we all know, in the mechanical industry, spur gear transmission is widely used in a variety of mechanical equipment.
As shown in Figure 1, the second-order effect force field of scheme is shown. As shown in figure a, in
The development of precision forming technology is extremely important to a country’s industrial development. European and American countries have long
The metal forming force of spur gear is the main consideration basis for determining the die size and structure and
K. Lwang and h.s.cheng used the finite element method to analyze the size and distribution of tooth body temperature of
It can be seen from the cross-section of the straight shaft that the cutting speed of the straight shaft tends
At present, the main problems faced by the development and wide application of cold extrusion technology of spur gears are
As shown in Figure 1, the velocity field distribution in the blank forming process of scheme 1 is shown. As
Li Mingliang simulated the forming process of forward extrusion and reducing extrusion of spur gear on DEFORM-3D software. It was
Taking 18CrNiMo7-6 spur gear as the research object, the finite element models of three schemes are established, and the warm
The cold extrusion technology of spur gear is a metal plastic forming process with less and no chip, which has
As shown in the cloud diagram and partial enlarged diagram of the contact stress distribution of the concave spur gear,
After the solution is completed, the equivalent stress of the two-dimensional contact of the concave spur gear is displayed by
Cold finishing process is the last process in compound forming. It is the key point in the whole process to
Professor Liu Quankun of Hefei University of technology proposed to simulate the continuous extrusion forming of spur gear through the
Consistent with the boundary condition setting of the smooth spur gear, restrict the degrees of freedom of all nodes in
Consistent with the two-dimensional modeling of smooth spur gear, the two-dimensional line contact peripheral contour curve of spur gear is
Three kinds of warm forging die structures are set according to the structural characteristics of spur gear. As shown in
In 1987, British universities first proposed the idea of precision forging hollow parts with floating die. According to the principle
1. Equivalent stress analysis of two-dimensional line contact of smooth spur gears The general post processor in ANSYS is used
Warm forging is equivalent to the pre forming step of spur gear. The design of pre forging drawing is based
Ohga K and Konda K first proposed to apply the shunting process to the precision forging technology of spur gears
It is proposed to use the warm and cold composite process to process spur gears. It is divided into pre
Gear is an important part of mechanical transmission. Its main function is to transmit power and change the speed and
In recent years, the precision forming of spur gears in China has been greatly developed, but there are still many
Spur gear contact is a typical nonlinear problem, and its solution process generally needs iterative calculation. There are problems of
In the actual fatigue wear test of spur gear, the pinion is the driving spur gear and the big gear
The 18CrNiMo7-6 spur gear of Zhengzhou Machinery Research Institute is taken as the research object. The spur gear is characterized
Using the advanced curve drawing function in the two-dimensional drawing software CAXA electronic Using the advanced curve drawing function in
As the key component of high-end equipment, the research on the precision forging process of large module spur gear has
Warm cold composite forming technology is a new process abroad in the 1970s, but it was not widely used in
According to the production practice of spur gear, the elastic deformation in the forming process of spur gear blank is
In the case of the same volume and the same upper and lower bottom diameter, it is quite cumbersome to
As an analysis method in the process of metal plastic forming, numerical simulation does not need to build physical models,
In the rotary forging process of spur gear, the contact area between the swing head and spur gear blank is
According to the actual situation in the production and experiment of rotary forging of spur bevel gears, in order to
Ring rolling module is a special module of DEFORM-3D to simulate spur gear ring rolling process, which is a method
The advantages of spur gear ring rolling process include shorter production time, better quality, smaller tolerance and saving a lot