Meshing principle of spiral bevel gear
The gear meshing principle, namely the conjugate surface principle, is the basic method to study the contact transmission of two […]
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
The spiral bevel gear blank is set as a plastic body. Determination of initial forging temperature of spiral bevel gear
The purpose of this paper is to simulate the forging process of the blank of the driven spiral bevel gear
Forging is a plastic forming processing method, which uses various pressure machines to exert pressure on the metal blank under
In view of the above problems existing in the current spiral bevel gear machining and manufacturing, a new theory and
1. Single nail clamping structure The contour spiral bevel gear milling cutter head for machining contour spiral bevel gears is
The research content provides a reference for improving the cutting efficiency of spiral bevel gear milling machine, reasonably selecting the
As shown in the figure, spiral bevel gear milling machines mostly use disk milling cutters, and multiple groups of blades
The development and application of modern numerical control technology provides a foundation for the development of spiral bevel gear machining
In view of the existing problems, it is proposed to carry out research in the following aspects: (1) According to
1. Assembly and inspection of cutting tools The assembly of milling cutter bar and milling cutter head and the inspection
Different gear processing methods form the micro complex morphological characteristics of spiral bevel gear tooth surface, which brings difficulties to
The contour spiral bevel gear milling cutter bar is mostly in the shape of prism, and the cross section in
As shown in Figure 1, it is the three-dimensional model of the cutter head established on UG. The contour spiral
The manufacturing accuracy of spiral bevel gear directly affects the transmission efficiency, noise, motion accuracy and service life of machinery
The service life of die and the selection of screw press are closely related to the forming load. Therefore, it
The equivalent stress in the forging process of equal height spiral bevel gear is an important analysis index, which affects
Based on the harmony search algorithm, the cutting parameter optimization of rough milling spiral bevel gear big wheel and rough
“Gear manufacturing manual” and other data on the cutting parameters of spiral bevel gears are aimed at the traditional mechanical
Taking the forging process of driving and driven spiral bevel gear blank as the research object, the forging process of
Taking the initial forging temperature as 1000 ° C, 1050 ° C and 1100 ° C respectively, and the friction
This paper mainly carries out three-dimensional automatic modeling of equal high tooth spiral bevel gear and its precision forging die,
Based on the analysis of spiral bevel gear design, manufacturing, testing and error correction technology, ZHY Gear believes that there
In the aspect of tooth surface error correction of spiral bevel gear, in the past, the tooth surface error correction
The closed forging process is adopted. After blanking, upsetting, punching and rolling of cylindrical bar, the ring with certain internal
The matching of machining quality and machining efficiency is an issue to be seriously considered in finishing machining. After the
This paper mainly carries out three-dimensional automatic modeling of equal high tooth spiral bevel gear and its precision forging die
In the diestressanalysis module of deform, the die stress is analyzed to study the deformation of die tooth profile in
When the friction coefficient is 0.3 and 0.7 respectively, the forming load curve of spiral bevel gear under different initial
The forging object of spiral bevel gear blank (without punching and trimming) is shown in the figure. Comparing the numerical
The forming effect analysis is mainly used to analyze whether the equal height spiral bevel gear forging is completely filled,
Combined with the practice of ZHY gear, the forging process of driven spiral bevel gear blank is numerically simulated. In
The research situation of gear forging at home and abroad and the application of numerical simulation technology in gear forging
Contour spiral bevel gear can be modeled in the modeling module of UG, but this method is only for a
When machining spiral bevel gear by forming method, under the condition of constant feed speed, the cutting force on the
Spiral bevel gear is an important transmission part of automobile, engineering machinery and other equipment. It mainly includes two forms
China’s research on spiral bevel gear is relatively backward. In order to change the monopoly of foreign technology, the former
Spiral bevel gear has the advantages of large overlap coefficient, strong bearing capacity, stable transmission and low noise. It is
1.Selection of processing temperature and strain rate After drawing the hot working diagram, the appropriate processing temperature and strain rate
The digital machining technology of spiral bevel gear is developed with the gradual maturity of computer technology, information technology, network
The manufacturing technology of spiral bevel gear is closely related to the progress of machining machine tools. Since the appearance
Gear is an important basic part of machinery, and gear transmission is also the main transmission form of most mechanical
Based on the meshing principle of equal height spiral bevel gear, the pitch cone and the base cone are two