Basic theory of helical gear dynamics and calculation of static transmission error after modification
Helical gear system is a complex elastic mechanical system composed of gear pair, transmission shaft, bearing and box. In the […]
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Foreign trends of carburizing and quenching process for truck gears
Carburizing and quenching of truck gears is a key process in the process of gear quality control. Many key characteristics
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Development of gear forgings in China
China’s gear forging industry has developed rapidly during the Tenth Five Year Plan Period: in 2005, the annual output value
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Parameter optimization of automotive rack and pinion steering gear
Complete the parametric design analysis and research of automobile rack and pinion steering gear based on CATIA. In the implementation
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Basic conditions of cylindrical gear rolling
The biting conditions of the above rolling ring can only ensure that the cylindrical gear enters the driving roller for
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Introduction to bevel gear
Bevel gear is also called bevel gear, bevel gear. Used for transmission between intersecting shafts. Compared with cylindrical gears, it
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Swing rolling of bevel gear blank
Swing rolling is a plastic forming method that rotates and swings on the bevel gear blank according to a certain
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Size calculation of spiral bevel gear blank and ring blank
The blank size of spiral bevel gear refers to the specific size of the material before the pier is rough,
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Heat treatment deformation control of heavy truck gear
The research on heat treatment deformation control of heavy truck gearbox gear is of great practical significance and great practical
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Research status of forming technology of spiral gear blank
In the 1970s, China just began to study the spiral gear blank. The early manufacturing processes were forging forming processes
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Preparation of spur gear blank
Cold extrusion process can produce extrusion parts quickly, continuously and in large quantities. In most cases, extrusion production has realized
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Design of die chamber for closed die forging of spiral bevel gear blank
The spiral bevel gear blank should be heated to 1150 ℃ for die forging, which belongs to hot die forging.
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Size calculation of spiral bevel gear blank
(1) Selection of diameter DP of spiral bevel gear blank Spiral bevel gear blank belongs to round cake forging, so
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Numerical simulation of precision forging of spiral bevel gear and analysis of temperature field distribution
The forming temperature distribution of the bevel gear is reasonable, which has a great impact on the forming quality of
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Characteristics of cylindrical gears
In the meshing transmission of cylindrical gear mechanism, there is a large tangential relative sliding speed along the tooth length
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Meshing transmission of gear mechanism of cylindrical gear
Name of each part of cylindrical gear (take spur gear as an example): l) Pitch circle diameter d ‘, graduation
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Meshing transmission of gear mechanism of cylindrical gear
Cylindrical gear is an important type of mechanical gear, and it is the most common gear style. When the gear
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Characteristics of hypoid gear transmission
1.Axis offset Hypoid gears are used for transmission between two shafts with staggered axes. The distance that the axis of
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Advantages and application of helical cylindrical gear
Helical cylindrical gear is a kind of helical gear. It is called helical cylindrical gear only when the two shafts
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Main names and definitions of gear teeth
1.Main names and definitions of gear teeth The code of the main names of each part of the gear tooth
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Virtual assembly process of automobile rack and pinion steering gear
The virtual assembly process is that the user changes the manual assembly operation process of the specified automobile rack and
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Brief introduction of hypoid gear
Hypoid gear is also called “elevation gear”. The conical surface is used as the indexing surface to approximately replace the
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Helical gear processing technology
Helical gears is the abbreviation of “helical cylindrical gear”, that is, the cylindrical gear whose tooth line is cylindrical helix,
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Forming technology of cylindrical gear blank and ring rolling ratio
The ring rolling ratio is the most important parameter in the forming process parameters. It shows the pRing rolling ratio
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Research status of forming technology of spiral bevel gear blank rolling ring
At present, the effective method to produce the driven spiral bevel gear blank of automobile rear axle at home and
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Simulation analysis of input end of planetary gear train
At present, the dynamic excitation of gear transmission system is divided into external and internal excitation. Among them, the external
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Research status of forming technology of spiral bevel gear blank rolling ring
Taking the automobile rear axle driven spiral bevel gear blank processed by ZHY gear as the research object, its original
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Heat treatment process of heavy truck gear
At present, foreign automobile manufacturers generally adopt isothermal annealing treatment for truck gear forging blank, and specify different isothermal annealing
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Brief introduction of driven spiral bevel gear of automobile rear axle
Automobile rear axle is also called drive axle. It not only bears the load, but also acts as differential and
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Automobile rack and pinion steering gears
With the enhancement of China’s national strength, China’s scientific level has been greatly improved. At the same time, it has
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Noise reduction and parameters of planetary gear transmission system
After the precise gear change model of spur gear is established in the software of SolidWorks. Through the comparison and
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Basic conditions of cylindrical gear biting
Cylindrical gear biting is a very complex process. The specific biting model is shown in Figure 1. In the figure,
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Main performance indexes of planetary gear
(1) Transmission error Transmission error refers to the difference between the actual occupied position and the ideal position of the
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Selection of forming process for spiral bevel gear blank
By comparing the advantages and disadvantages of various forming processes and combining the process methods of producing spiral bevel gear
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Ring rolling process of cylindrical gear blank
Ring rolling, in fact, can be regarded as a rolling process, which mainly carries out continuous local compression deformation on
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Noise reduction of planetary gear transmission system
Planetary gear train is an important gear transmission mechanism, which has the advantages of compact structure, small volume, light weight,
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Die forging process of driven spiral bevel gear blank of automobile rear axle
Die forging refers to the method of using die processing to make the blank finally form the forging. This forging
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Basic constraints of planetary gear train parameters
The number of teeth of planetary transmission cannot be selected at will. Normal transmission can be carried out only when
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Influence of deformation temperature on accuracy of spur gear
In actual production, the forming of workpiece is accompanied by heat generation, and the temperature of die and workpiece will
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Influence of carburizing process and equipment on gear deformation
1. Effect of temperature on gear deformation There is no doubt that with the increase of heating temperature and quenching
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Application of numerical simulation in cylindrical gear blank forming
The development of traditional cylindrical gear forming technology is a process through repeated tests by operators and years of experience
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Introduction of ring rolling technology for spiral bevel gear blank
Ring rolling process essentially belongs to plastic forming process. Through local deformation of spiral bevel gear blank, the overall forming
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Coupling dynamic modeling of helical gear modification and friction excitation
Through the research on the relationship between helical gear modification and friction excitation, the coupling dynamic model of helical gear
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Numerical simulation of precision forging of spiral bevel gear and analysis of stress field distribution
By analyzing the stress distribution in the forming process of spiral bevel gear forgings, we can fully understand the stress
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Modeling and analysis of automobile steering gear rack
The rack is an involute gear whose base circle radius is infinite, and its contour has changed from involute to
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Optimization of design parameters of planetary gear train
According to the relevant models and parameters of the involute planetary gear reducer, as shown in Table 1. An accurate
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Development of pre heat treatment of heavy truck gears
As we all know, the quality of gears is influenced not only by the steel itself, but also by the
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Driven spiral bevel gear forging blank
As a transmission part, spiral bevel gear is widely used in automobile, machine tool, ship, aircraft and other related fields.
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Development status of rack and pinion steering gear in China
Among the steering gears used by Chinese cars, in the last century, Jiefang automobile and Dongfeng Automobile used worm crank
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Influence of different sizing belt length on the accuracy of spur gear
The sizing belt of shaping die is one of the important process parameters affecting the forming accuracy of spur gear.
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Influence of furnace charging mode on gear deformation
During gear heat treatment, carburizing and quenching, a reasonable furnace charging method shall be adopted according to the specific conditions
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Parametric design of automotive rack and pinion steering gear
On the basis of studying a large number of relevant data at home and abroad, this paper makes an in-depth
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Heat treatment of automotive gear materials
The heat treatment strengthening technology of automobile gears should pay attention to the control of surface integrity, that is, to
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Automotive rack and pinion steering gear system
The interface design of automobile rack and pinion steering gear model base the man-machine interface and man-machine interaction ability of
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Numerical simulation of precision forging of spiral bevel gear and analysis of strain field distribution
Strain is a physical quantity used to express the deformation size of the deformed body. Through the analysis of the
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Research status of dynamic characteristics of helical gears in China and abroad
The dynamic response characteristics of gear system refer to the dynamic behavior of gear system in the working process, mainly
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Interference analysis and inspection of virtual assembly of automotive rack and pinion steering gear
Interference analysis is one of the important contents of virtual assembly design of automobile rack and pinion steering gear. After
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Overview of virtual assembly of automotive rack and pinion steering gear
Virtual assembly of automobile rack and pinion steering gear refers to that in the virtual environment, designers can easily establish
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Basic parameters of automobile steering gear
The basic parameters of automobile steering gear mainly include the number of teeth, modulus, pressure angle, tooth width, displacement coefficient
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Parametric modeling of automotive rack and pinion steering gear parts
General products are composed of one or many parts. In order to realize the parametric design of products, we must