Basic situation of automobile gear steel abroad
In foreign countries, the carburized gear steel initially used is basically manganese steel and manganese chromium steel. For example, the […]
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Two dimensional contact finite element analysis of smooth spur gear
Through the three-dimensional numerical simulation of the ring sample, it is concluded that the ring sample with a certain surface
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Description of basic parameters of spiral bevel gear pair
The geometric dimension of the wheel blank is the basis for the design and processing of the spiral bevel gear
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Forging gear simulation and production verification
According to the optimized preform shape and process parameters, the other parameters are set to the same value as. Use
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Installation posture of cylindrical gear profile cutter
The chamfering of tooth profile is different from the machining of tooth surface. In order to avoid scratching the tooth
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Wear resistance test of Automobile Gears
Through the friction and wear test, the comparative experimental research between the smooth sample and nine different pit bionic ring
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Wear resistance test of concave bionic spur gear
The comparative experimental study on the wear resistance of concave and smooth spur gears is carried out by using the
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3D modeling of modified spur gear based on Pro/E
Pro/E is a parametric modeling software, which can establish the three-dimensional model of spur gear through parameterization, which greatly improves
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Tooth direction error and tooth profile error of smooth large gear before test
The smooth big gear has 24 teeth in total, which are measured by full teeth. The changes of morphological parameters
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Tooth direction error and tooth profile error of smooth pinion before test
The smooth pinion has 16 teeth in total. In this experiment, the pinion is measured with 3 teeth to grasp
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Heat treatment technology for changing gear surface
Heat treatment technology is a traditional method to improve the surface strength of materials. The heat treatment of gear material
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Classification of industrial gears and vehicle gears
According to different working conditions, gear transmission can be divided into closed type and open type; According to different use
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Classification of gear forging
There are many ways to forge gears. Gear forging can be classified as follows: According to different gear forging tools
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Industrial gear shape parameter testing instrument
Industrial gear precision measuring instrument is mainly used to detect whether the precision of industrial gear after machining meets the
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Test method of helical gear shape parameters and evaluation index of wear resistance
1. Test method The error value of main parameters of helical gear is measured by helical gear precision detector. Fix
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Meshing simulation of spiral bevel gear
In order to verify the accuracy of machining parameter calculation, the ease off difference tooth surface is constructed for contact
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Dynamic reliability of gear transmission system of flying vehicle
With the development of the concept and technology of flying vehicle, automobile gear transmission system has become one of the
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Reliability of gear transmission system of flying vehicle
Based on the modeling method of system level theory, the gear transmission system is divided into three subsystems: primary DSI
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Stress calculation of bevel gear transmission system of flying vehicle
Tooth contact fatigue failure and tooth root bending fatigue failure are one of the most common failure forms of bevel
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Objective function and optimization parameters of forging gear blank
The optimization goal is to reduce the forming load and increase the filling rate of gear forging. (1) Objective function
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Adopt advanced gear manufacturing technology
With the improvement of forging technology, many manufacturers at home and abroad have adopted precision forging technology, changing the short
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Experiment of chamfering tool for cylindrical helical gear hobbing
In order to further verify the correctness and effectiveness of the profile design method of the rake face of the
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Calculation method of cylindrical gear tooth profile and cutter profile
In the process of continuous tooth profile chamfering, the cylindrical gear rotates around the c-axis, the tool rolls with the
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Failure analysis of gear hub
It mainly analyzes the root causes from the aspects of part failure form, part design, material, processing, assembly, use and
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Failure of central transmission gear hub of bulldozer
The central transmission structure of the bulldozer developed by a company is shown in Figure 1. When the whole machine
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Variance analysis of double circular arc gear
The independent variables of the orthogonal test and the natural frequency values of the double circular arc constraint mode solved
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Modeling of modified cylindrical gear based on Pro / E and ANSYS
Cylindrical gear transmission is widely used in mechanical equipment. It has the advantages of stable transmission, small volume and strong
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Comparative analysis of tooth surface of face gear
Using the method of numerical comparison, the simulation results are accurately analyzed by calculating the normal difference between VERICUT gear
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Elastohydrodynamic lubrication contact of cylindrical gears
In order to ensure the accuracy of contact analysis, the influence law of micro morphology of tooth surface should be
Scientific
Effect of preheating treatment before carburizing on distortion of 17CrNiMo6 steel gear shaft
The traditional carburizing process is to directly heat the workpiece to the carburizing temperature during carburizing. In this paper, the
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Carburizing treatment of gear shaft considering preheating
In production, the preheating temperature and time parameters of gear shaft are more based on the experience of workers. Based
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Gear tribology theory
The theoretical research of gear tribology focuses on gear elastic hydrodynamic lubrication (EHL), gear surface morphology, micro tribology and so
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Method of changing gear material
By using materials with good wear resistance to replace the previously used gear materials, the wear resistance of the gear
Scientific
Fracture failure of automobile gear teeth
The teeth of automobile gears are equivalent to cantilever beams. The force between two meshing teeth acts along the common
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Numerical solution of machining parameters of small gear of spiral bevel gear
The numerical differentiation method is used to calculate the numerical differentiation of the formula, calculate the main direction and main
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Gear transmission classification
Gear is the main body of power transmission. Gear transmission is the most widely used transmission form in mechanical equipment.
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Characteristics of gear forging
Gear forging is developed on the basis of meeting the requirements of mass production of gears. Combined with the advantages
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Forging gear blank
The gear blank used for forging is aisi4120 steel, and its material composition and mass fraction are shown in the
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Gear forging
The research object is the gear, which is an important transmission component of motor vehicles. Its quality defects will seriously
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Pitting corrosion of cylindrical gears based on multiaxial fatigue criterion
The contact deformation in the meshing process of cylindrical gears affects the lubrication behavior of cylindrical gears, which is a
Scientific
Chamfering parameters and kinematic analysis of cylindrical gear profile
Different from the traditional chamfering method of tooth profile, the new method of continuous cutting chamfering with cutting tools is
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Cutting simulation of cylindrical gear profile cutter
The cylindrical helical gear (parameters are shown in Table 1) and hobbing chamfering tool (parameters are shown in Table 2)
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Cylindrical gear tooth profile cutter space motion coordinate system
According to the tool installation pose coordinate system, the spatial hobbing motion coordinate system of tool and cylindrical gear is
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The gear shaft is carburized without preheating
If the distortion of gear shaft is too large, the machining accuracy and assembly accuracy will be reduced and the
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Prediction of pitting life of helical gears
The interaction between power transmission and moving gear teeth is a typical complex system with high load, coexistence of multiple
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Orthogonal test of double circular arc gear
Orthogonal test of double circular arc gear is an important mathematical statistical method to study multi factor test. The orthogonal
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Machining simulation of face gear shaper
The virtual simulation process is basically the same as the actual machining process. By adjusting the parameters of the NC
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Elastohydrodynamic lubrication contact based on cylindrical gear
The contact characteristics of the cylindrical gear at each meshing time are equivalent to the cylindrical contact with corresponding curvature.
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Temperature field and stress field of two heat treatment methods of gear shaft
In the process of heat treatment, with the changes of temperature and microstructure, parts will produce thermal stress and microstructure
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Tooth surface equation of face gear
The tooth surface of helical offset non orthogonal gear is formed by the tooth surface of helical gear shaper cutter.
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Machining principle of face gear
The gear shaping process of helical offset non orthogonal face gear is the simulation of the generating motion of helical
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Small wheel generation model of spiral bevel gear
According to the production principle of spiral bevel gear pinion, the coordinate system shown in the figure is established to
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Performance and application of spiral bevel gear
Gear mechanism is one of the most widely used transmission mechanisms in various mechanical mechanisms. It relies on the direct
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Spur gear pitting based on multiaxial fatigue criterion
Fatigue pitting caused by the friction between the meshing surfaces of spur gears is one of the main failure forms
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Face gear machining coordinate system
The coordinate system shown in the figure is used for gear shaping of helical offset non orthogonal surface gears. Among
Scientific
Distortion comparison of two heat treatment methods for gear shaft
Take 300 points at the axis of the gear shaft for analysis. The path taken is shown in figure (a).
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End face profile of cylindrical gear
The profile of hobbing chamfering tool and the profile of the end face of the processed cylindrical gear are no
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Constrained modal model of orthogonal test double circular arc gear
In order to quickly solve the low order frequency of the constrained mode of double circular arc gear and reveal
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Calculation model of heat treatment of gear shaft
1. Finite element model According to the geometric diagram in Figure 1, the three-dimensional software is used for modeling, as
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Hobbing chamfering tools for cylindrical gears and spiral bevel gears
Cylindrical gear is widely used in high-speed and heavy-duty occasions because of its compact structure, strong bearing capacity and stable