The necessity of dynamic simulation analysis of involute straight bevel gear
From the current research status of gear dynamic analysis, it can be seen that the dynamic simulation analysis of cylindrical […]
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Analysis and optimization of romax designer for gear transmission
With the in-depth study of mechanical transmission system dynamics, there are more and more kinds of software used for transmission
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Three dimensional solid modeling of modified involute straight bevel gear
According to the determined modification parameters and combined with the established straight bevel gear model, the tooth profile arc modification
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Load contact analysis of herringbone gear with centering error
In order to verify the accuracy of the load contact analysis model of herringbone gear with centering error, a three-dimensional
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Influence of alignment error and error coupling compensation on meshing characteristics of herringbone gear
Herringbone gear transmission has the advantages of high bearing capacity, stable transmission and small axial load. It plays an important
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Research methods of gear transmission
Gear dynamics takes a pair of gears or the whole gear system as the research object, aims to study and
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Research status of straight bevel gear tooth modification in China
By analyzing the current situation of determining the drum shape in foreign countries, song Lemin obtained the calculation formulas of
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Research status of spur gear tooth modification abroad
As the mechanical industry is more and more inclined to require the spur gear system with high speed and low
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Load contact analysis model of herringbone gear with centering error
Based on the helical gear LTCA model obtained by Litvin et al. Based on the finite element loading contact analysis
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Gear hobbing of face gear based on spherical hob
The aviation industry has high requirements for transmission performance. Face gear transmission is a new transmission mode to realize intersecting
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Generation principle of tooth surface of spherical involute spiral bevel gear
Based on the generation principle of tooth surface of spherical involute spiral bevel gear, two new tooth cutting methods are
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Machining simulation of two axis linkage milling of spiral bevel gear
Based on the establishment of the simplified model, gear blank model and tool model of the two-axis linkage gear cutting
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Influence of other factors on mechanical properties and quality of gears
1) During grinding, the feed rate is large, the grinding speed is fast, and the tooth surface temperature is too
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Experiment on machining face gear with spherical hob
For the face gear with the parameters shown in example 2 in Table 1, the spherical hob is manufactured, and
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Implementation scheme of two axis linkage gear cutting of spiral bevel gear
It can be seen from the analysis that the two-axis linkage cutting machining of spiral bevel gear is mainly composed
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Digital modeling technology of spiral bevel gear
The spiral bevel gear calculation software is used to analyze the simulated contact mark. The calculated meshing area is compared
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Effect of different heat treatment methods on mechanical properties of gears
With the increasing demand for coal mine output, the TBM model has higher and higher requirements for gear quality and
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Simulation of machining face gear with spherical hob
The gear hobbing process of face gear spherical hob is simulated by VERICUT software. Since the minimum number of undercutting
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The new milling method of spiral bevel gear with two axis linkage
Based on the research on the new three-axis linkage milling method of spiral bevel gear, the cutting motion is further
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Analysis of Gear Heat Treatment Defects
The gears installed in the transmission, reducer and differential undertake the tasks of changing speed, output torque and driving the
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Machining simulation of three-axis linkage milling of spiral bevel gear teeth
Based on the establishment of the simplified model, gear blank model and tool model of the gear cutting machine tool,
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Profile equation of face gear hobbing
The coordinate system of face gear hobbing is established, as shown in Figure 7. The fixed coordinate system SH0 (xh0,
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Cutting principle of convex tooth surface based on generation line of spiral bevel gear tooth surface
Based on the analysis of the generation principle of convex tooth surface, it can be seen that the convex tooth
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Heat treatment defects and technical improvement of tractor gears
Shanghai Tractor internal combustion engine Co., Ltd. studied the spline hole distortion of xf-125 primary transmission gear, carried out tests
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Basic worm equation of spherical hob for face gear
Taking right-hand rotation as an example, the coordinate system for the forming of face gear spherical hob based worm is
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Key geometric elements and names of spiral bevel gears
The tooth profile of spiral bevel gear is mainly composed of concave tooth surface, convex tooth surface, tooth top part
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Study on chemical heat treatment process of gears
1) Chongqing Changjiang diesel engine factory has carried out rapid gas nitrocarburizing process test and mass production assessment on 45
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Design principle of spherical hob based worm for face gear
Similar to the evolution from rack to ordinary gear hob, the evolution process from cylindrical gear to spherical hob based
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Influence of input torque on dynamic equation of bevel gear
In order to consider the influence of torque on the dynamic response of central transmission bevel gear, keep the input
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Study on gear annealing and quenching and tempering process
For a long time, the forging blanks of car gears are mostly treated by normalizing process. In recent years, with
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Tooth surface equation of face gear
The forming of face gear tooth surface is based on the generating cutting of cylindrical spur gear shaper and face
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Common heat treatment defects of gears and their prevention methods
1. Cracks 1) In the carburizing diffusion stage, the carbon potential is high, the carburizing layer carbon concentration is too
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Gear material and forming
1. Practice has proved that the general machine tool gears are made of medium carbon steel and treated by induction
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Defects of gear heat treatment and its influence
Whether carburizing quenching, carbonitriding quenching, induction heating quenching or overall heating quenching, the possible heat treatment defects during gear quenching
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Development prospect of gear hobbing technology
With the rapid development of information technology and material technology, many new technical achievements have appeared in the field of
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Traveling wave vibration speed of bevel gear
After the natural frequency and vibration mode of bevel gear are determined, the resonance speed diagram shown in the figure
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Study on dynamics of spiral bevel gear
Compared with cylindrical gears, due to the structural form of bevel gears, there are always vibration problems in bevel gear
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Research on key technologies and hot technologies of gear hobbing equipment manufacturing
Due to the greatly shortening of the transmission chain, the NC gear hobbing machine reduces the influence of manufacturing error,
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Failure analysis of heat treatment crack of spiral bevel gear
(1) Analysis of crack properties From the crack morphology, the crack originates from the stress concentration. Whether the root of
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Improvement of gear hobbing process and error control
For a long time, short service life, poor reliability and heavy structure have become the three major problems restricting the
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Process and results of heat treatment crack failure test of spiral bevel gear
(1) Macro morphology of crack: observe the crack morphology of three pairs of spiral bevel gears from the appearance, as
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Development and types of Involute Gears
Gears are widely used in mechanical transmission devices and are one of the common mechanical parts. Human beings began to
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Calculation of normal deviation of tooth surface of logarithmic spiral bevel gear
When measuring the tooth surface of logarithmic spiral bevel gear, there is an error between the theoretical value and the
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NC programming and machining of spiral bevel gear tooth top rounding
The three-dimensional tooth digital model is obtained through reverse engineering modeling. The digital model only includes tooth width, face cone,
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Research on logarithmic spiral bevel gear using reverse engineering technology
Based on the improvement of the meshing theory of logarithmic spiral bevel gear theory, aiming at the existing logarithmic spiral
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Technical development status of gear hobbing machine in China and abroad
Gear hobbing machines are divided into vertical and horizontal according to the structural form. Small gear hobbing machines and special
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Defects of gear heat treatment and its influence
Various defects produced during heat treatment of gears will have potential or obvious adverse effects on their quality and service
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First order error of difference surface equation of logarithmic spiral bevel gear
Expressed as the shape error of logarithmic spiral bevel gear, the vertical distance between each measuring point on the real
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Establishment of reverse engineering model of spiral bevel gear
The machining process of spiral bevel gear is to first establish the theoretical mathematical model, then convert the mathematical model
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Tooth surface reconstruction of logarithmic spiral bevel gear
Based on the idea of reconstructing the real tooth surface of logarithmic spiral bevel gear, the original data points of
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Processing of data points on tooth surface of logarithmic spiral bevel gear
When the complex data of logarithmic spiral bevel gear tooth surface is obtained by laser scanner, the accuracy of data
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Reverse engineering of logarithmic spiral bevel gear
Gear is an important part of mechanical transmission device, which has the characteristics of high efficiency, compact structure, high reliability
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Basic principle of gear hobbing
Gear hobbing is cutting by using the meshing principle of helical gear. The essence of hob is a worm, and
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Insufficient hardness of gear core
The center of carburized gear is required to have a certain hardness. When the hardness is low, the yield point
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Comparative analysis of reverse engineering of non-circular gears
Select the seedling taking track in the seedling taking mechanism of double arm second-order free non-circular gear planetary system pot
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Gear hobbing equipment and its technical development
With a wide range of varieties and specifications, gears are widely used. They are one of the important basic components
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The surface hardness of gear is low after quenching
The low surface hardness of carburized gear will reduce the wear resistance and fatigue resistance of gear, and have an
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Reverse engineering solution of machining parameters of spiral bevel gear machine tool
Spiral bevel gear is widely used in power transmission of aviation, vehicles and machine tools because of its stable transmission
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Uneven carburizing layer depth of gear
The depth of carburizing layer on the gear surface is uneven, resulting in discontinuous performance of different parts. The weak
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Summary of crack failure in heat treatment of spiral bevel gear
Three pairs of spiral bevel gears for reducer were heat treated in the heat treatment processing company according to the