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 […]
Scientific
Scientific
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 […]
Scientific
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 […]
Scientific
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 […]
Scientific
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 […]
Scientific
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 […]
Scientific
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 […]
Scientific
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 […]
Scientific
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 […]
Scientific
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 […]
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Material selection and microstructure of hardened gear
Gears used in different machines have great differences in material and heat treatment process due to the differences in stress […]
Scientific
The hardened layer of gear is too shallow
The surface hardness of carburized gear is too shallow, which not only reduces the anti peeling performance of surface hardened […]
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Data acquisition of tooth surface point cloud in reverse engineering of spiral bevel gear
The so-called “cloud points” data refers to the three-dimensional data of the real object measured by various methods in the […]
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Tooth cutting test equipment for Hypoid Gear with small number of teeth
The gear cutting test of hypoid gear was carried out on gh-35 gear milling machine in gear laboratory. Gh-35 spiral […]
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Analysis of Gear Heat Treatment Defects
Gear is the main part of power transmission in all kinds of machinery. During operation, the tooth surface of the […]
Scientific
Excessive carburization of gear surface
Due to improper treatment and excessive carburization, massive and network carbides will appear on the surface of carburized gear. When […]
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Application of reverse engineering in surveying and mapping of involute cylindrical spur gear
In coal machinery equipment, many gear devices in China are imported from abroad. With the influence of factors such as […]
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3D reconstruction model of spiral bevel gear reverse engineering point cloud
3D model reconstruction mainly uses the point cloud data on the model surface collected by spiral bevel gear reverse engineering […]
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Processing of tooth surface point cloud in reverse engineering of spiral bevel gear
The processing of tooth surface point cloud in reverse engineering of spiral bevel gear is a very important process, which […]
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Research on reverse engineering modeling of spiral bevel gear
Spiral bevel gear is an important part of high-precision equipment. Spiral gear is generally processed by spiral milling machine. Because […]
Scientific
Calculation of axial force of hypoid gear pair
For loaded working side: The axial force fax1d of hypoid gear pinion is: The axial force fax2d of hypoid gear […]
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Tooth cutting test of hypoid gear with few teeth
Hypoid gears are difficult to manufacture due to the complex tooth surface structure. In this chapter, according to the theoretical […]
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Technical level of domestic gear heat treatment furnace
Computer technology is applied to the control of domestic heat treatment furnace, which realizes high precision and multi-function. Control accuracy: […]
Scientific
Causes and preventive measures of metallographic structure and heat treatment defects of rear axle gear
1. Defect content Including coarse martensite, excessive retained austenite as shown in figure (a), excessive surface carbides as shown in […]
Scientific
Accurate modeling of hypoid gear pair with small number of teeth and large reduction ratio
Taking the modeling process of small wheel as an example, this paper introduces the modeling process of hypoid gear with […]
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Research status of spiral bevel gear
Gleason of the United States has always been in a leading position in the world in the design and processing […]
Scientific
Calculation of tangential force of hypoid gear pair
In order to ensure that the working surface of the designed hypoid gear with small number of teeth bears the […]
Scientific
Influence of input torque on dynamic load performance of spiral bevel gear transmission
Other parameters remain unchanged. Under different input torques, the variation of dynamic load coefficient amplitude of spiral bevel gear transmission […]
Scientific
Principle of virtual gear hobbing
As shown in the figure 1, the tool rack pitch line AB is a straight line. During gear hobbing, AB […]
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Development of gear heat treatment equipment
In addition to the old standard well carburizing furnace, deep carburizing well furnace, sealed box multi-purpose furnace, single and double […]
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Tooth surface equation of hypoid gear with few teeth
Using the meshing principle of hypoid gear and based on the meshing equation, the tooth surface equation is deduced. The […]
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Study on hypoid gear with small number of teeth and large reduction ratio
Focus on hypoid gears with large reduction ratio with 2-4 small teeth and transmission ratio of more than 10. Because […]
Scientific
Undercut inspection of hypoid gear
In general, undercutting will not occur in the large wheel of hypoid gear with small number of teeth and large […]
Scientific
Hobbing linkage model of high order elliptic helical gear
The feed motion of hobbing helical gear is a helix, which can be divided into the vertical motion VZ of […]
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New technology of gear heat treatment
ZHY gear senior engineer team proposed a new heat treatment process for obtaining Austempered bainite ductile iron, namely room temperature […]
Scientific
Determination of pitch cone of hypoid gear with few teeth
For the design of hypoid gear pair blank with small number of teeth and large reduction ratio, the axle intersection […]
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Study on hypoid gear with small number of teeth and large reduction ratio
Taking the hypoid gear with 2-4 teeth and transmission ratio of 10-30 as the research object, the main research work […]
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Research on hypoid gear
Hypoid gear, as the main part of mechanical transmission system, is widely used in automobile, engineering machinery, mechatronics products and […]
Scientific
Influence of supporting stiffness of driven gear of spiral bevel gear on dynamic load performance of spiral bevel gear transmission
Other parameters remain unchanged. Under different support stiffness of spiral bevel gear driving wheel, the variation of dynamic load coefficient […]
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Research on control system of NC spiral bevel gear machining machine tool
Because spiral bevel gear is widely used in all walks of life, the development of spiral bevel gear processing machine […]
Scientific
Gear hobbing linkage model of high order elliptic spur gear
As shown in the figure, the machine tool coordinate system s (o-xyz) is established. The X axis and Z axis […]
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Development of new technology for gear heat treatment
Austenite Bainite Ductile iron has good comprehensive mechanical properties of high strength, high elongation and high impact value, as well […]
Scientific
Calculation method of natural frequency and vibration mode of spiral bevel gear transmission
The vibration characteristics of mechanical system can usually be described by the natural frequency and vibration mode of the system. […]
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Research status of gear strength analysis methods
The gear strength calculation is based on the calculation formula proposed by and. Various coefficients are used to correct the […]
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Defects of gear heat treatment and technical improvement scheme
Gear heat treatment deformation is affected by many aspects, such as part shape, raw materials, forging and preliminary heat treatment, […]
Scientific
Hobbing conditions of high order elliptic gears
The gear hobbing condition of non-circular gear is that the pitch curve is not concave, that is, the radius of […]
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Analysis of dynamic characteristics of spiral bevel gear transmission with additional damping ring
Damping ring vibration reduction technology is an effective measure to improve the vibration characteristics of gears. By embedding damping rings […]
Scientific
Finite element modeling of spiral bevel gear pair
The meshing stiffness of cylindrical gear is usually calculated as a two-dimensional plane problem. The elastic deformation of single tooth […]
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Defects of gear heat treatment and examples of technical improvement
The problem of spline hole distortion of xf-125 primary transmission gear by China First Tractor internal combustion engine company is […]
Scientific
Higher order elliptic gear pitch curve equation
Based on the ellipse, keep the polar diameter unchanged, and reduce the polar angle of the ellipse by an integer […]
Scientific
Calculation of meshing stiffness of helical gears
The helical gear is divided into m slice helical gears along the tooth width direction AA ‘, the M slice […]
Scientific
Blank dimensions of spur gears
During precision forging blanking, the blank must be accurate. Due to the large hole of spur gear, there are two […]