Metallographic examination of gear of pitch reducer for wind power generation
The chemical composition of the gear was analyzed by carbon sulfur analyzer and optima800 plasma emission spectrum. The test results […]
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Gear cracking of pitch reducer for wind power generation
Pitch reducer is widely used in wind power generation system. Its working characteristics are frequent start and stop of intermittent
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Macro fracture inspection of gear of pitch reducer for wind power generation
After ultrasonic cleaning, the fracture surface of the fractured gear can clearly see the crack source area and the reverse
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Tooth profile deviation and tooth thickness deviation of noncircular gears
The number of teeth of circular gear is the total number of teeth on the whole circumference of circular gear,
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Pitch deviation of noncircular gear
On the pitch curve of non-circular gear, the arc length between two adjacent tooth profiles on the same side is
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Measurement of noncircular gear with 3D scanner
Using 3D scanner to measure non-circular gear is to scan non-circular gear to obtain point cloud data model of non-circular
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Measurement of noncircular gear articulated arm scanner
The measurement of non-circular gear with joint wall scanner is to obtain the three-dimensional point cloud model of non-circular gear
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Noncircular gear CMM measurement
Noncircular gear will produce machining error in the process of machining. The size of machining error reflects the level of
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Basic parameters of noncircular gear under test
Noncircular gear can be considered as a deformation of circular gear, that is, its rolling pitch circle has changed into
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Error measurement method of noncircular gear
A lot of research has been done on the measurement of cylindrical gear and non-circular gear at home and abroad,
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Case test of non Hertz contact gear design theory
The results show that the EHL center stress design results are very close to those based on Hertz theory, which
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Case test of non Hertz contact gear design
The dividing circle diameter of driving wheel of locomotive traction gear is 324 mm, transmission ratio μ = 2.59, tooth
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Production example test of non Hertz contact gear
In the general concept of engineers, the gear design method based on Hertz contact theory widely used in current engineering
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Papers on non Hertz contact gear design
There are a lot of literatures about EHL Analysis of gear transmission, but the research on the combination of EHL
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Design method of non Hertz contact gear
Based on the EHL theory, a new gear design theory and method non Hertz contact gear design theory and method
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Non Hertz contact gear design theory
Gear is an important industrial basic component and the core component of mechanical equipment. Its performance and reliability determine the
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Experimental verification of end face spiral gear
In order to verify the correctness of digital closed-loop manufacturing technology for end face spiral bevel gear coupling, grinding experiments
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Construction of digital closed loop manufacturing system for end face spiral gear
The digital closed-loop manufacturing technology of end face spiral gear coupling is to organically combine the numerical control processing technology
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Digital closed loop manufacturing technology of end face spiral gear coupling
The digital closed-loop manufacturing technology of end face spiral gear coupling is studied (1) The mathematical model of tooth surface
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Digital closed loop manufacturing of end face spiral bevel gear coupling
The end face spiral gear coupling (also known as circular arc end gear) was invented by Gleason company. Relying on
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Optimal solution of single stage double circular arc spiral bevel gear
The optimal design mathematical model of single-stage bevel gear nutation reducer is as follows Where 1 ≤ J ≤ 12.
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Single stage nutation reducer with double circular arc spiral bevel gear
According to the principle of nutation, various nutation mechanisms have been designed and studied from the aspects of structure analysis,
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Lubrication technology of large open gear
Spray lubrication Large open gear adopts spray lubrication technology, which requires not only reasonable selection of lubricant but also reasonable
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Lubrication system of large open gear
The working condition of large open gear is very bad. In order to meet the operation characteristics of open gear,
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Solid additive for large open gear lubricant
Since the main working conditions of open gear are heavy load and low speed, it is necessary for open gear
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Characteristics of different base oils for large open gear lubricants
(1) Performance comparison of different base oils for open gear lubricants. (2) Characteristics of different types of lubricant base oils
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Types of lubricants for large open gear
(1) Asphalt based products. It is directly extracted from crude oil and contains extreme pressure additives and organic solvents. In
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Common wear forms of large open gear
Failure mode of open gear The main failure modes of open gear are pitting corrosion, spalling, plastic deformation, gluing, broken
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Lubrication and maintenance of large open gear
Gear is one of the key transmission parts of mechanical equipment, and is a main form of equipment power conversion:
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Transient dynamic analysis results of marine helical gear
In the process of helical gear meshing, because the hardness of the gear shaft is higher than that of the
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Time varying load torque of marine helical gear driven wheel
The MNF file generated in ANSYS is used to replace the ring gear on the wheel hub, that is to
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Research on dynamic characteristics and profile modification of marine helical gears
The dynamic characteristics of marine gearbox transmission system directly affect the fatigue life of gear and the transmission efficiency of
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Finite element quasi static contact analysis method for helical gears
The mesh quantity and quality of the finite element model directly affect the speed and accuracy of the calculation results.
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Distortion mechanism and meshing performance of helical gears with profile modification
Gear is an important basic part of industrial equipment. With the development of modern industrial technology, higher requirements are put
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Definition and analysis framework of gear nonlinear vibration reliability
Firstly, the reliability of gear nonlinear vibration is defined as the probability that the vibration displacement, vibration velocity and vibration
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Multi point traversal method for nonlinear vibration reliability analysis of gear mechanism
Gear mechanism is widely used in aviation, aerospace, machine tools and key infrastructure and other fields, and is usually the
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Factors of industrial gear noise
Material selection The most commonly used material of gear is steel, followed by cast iron, nonferrous metals, nonmetal, etc., but
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The dynamic performance simulation model of multi-stage gear transmission system is established
After establishing the mathematical model of the dynamic performance of the multi-stage gear transmission system, the dynamic performance simulation model
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Dynamic performance analysis and optimization of gear transmission system
Compared with ordinary gear transmission system, multi-stage gear transmission system has many advantages, such as small volume, light weight, high
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Achievements in lubrication and protection of open bevel gear of open disc feeder
The working diagram of 1.5 m open disc feeder with automatic lubrication, oil return and protection functions is shown in
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Modification of open bevel gear lubrication and protection components of open disc feeder
The big gear 12 and the small gear 11 with open fit are running naked in operation. In addition, due
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Open bevel gear of open disc feeder
A concentrator has a history of 50 years. It is a concentrator which mainly concentrates on molybdenum and vice versa.
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Influence of gear tooth line radius on tooth thickness deviation
Taking the circular arc tooth line cylindrical gear as the research object, two common machining methods (parallel link machining method
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Milling technology of parallel connecting rod and rotary cutter head for circular arc tooth profile cylindrical gear
The schematic diagram of two processing technologies of circular arc tooth line cylindrical gear is shown in Fig. 1 Processing
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Tooth profile characteristics analysis of circular-arc-tooth-tracecylindrical gear with different processing technology
Gear is one of the important mechanical transmission parts, widely used in aerospace, automobile industry, ship machinery, equipment manufacturing and
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Metallographic examination of inner crack of 42CrMo4 gear hub blank
Through grinding and polishing, and observing under optical microscope, it is found that the middle part of the crack is
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Internal crack inspection and electron microscope scanning of 42CrMo4 gear hub blank
After quenching and bluing treatment, fracture inspection and Bluing test are conducted after longitudinal fracture of steel. Through observation, it
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Basic parameters of single stage double circular arc spiral bevel gear
The single-stage nutation spiral bevel gear is obtained by sweeping along the tooth line with double circular arc as the
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Macrostructure inspection of internal crack in 42CrMo4 gear hub blank
The instrument model used for ultrasonic flaw detection is cts-1002 digital ultrasonic flaw detector. As the diameter of steel is
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Production process and defect detection method of gear hub blank
Production process of gear hub blank Electric furnace smelting → die casting → forging → annealing → peeling → ultrasonic
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Cause analysis of internal crack in flaw detection of 42CrMo4 gear hub blank
The gear hub is assembled in the drive gearbox of railway vehicles. The material used is 42CrMo4 and the specification
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Development of sealed rotor system with gear meshing characteristics
As a complex sealed rotor system, the theoretical analysis and research of the system are carried out in this paper.
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Research on sealed rotor system with gear meshing characteristics
Based on the dynamic theory, the planetary gear speed increasing system and the rotor system with contact seal are analyzed
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Parameter setting of Adams model for sealed rotor system with gear meshing characteristics
(1) Set material properties According to the actual material of each component, add the material of each gear, planetary carrier,
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Adams dynamic simulation analysis of sealed rotor system with gear meshing characteristics
Due to the complexity of the three-dimensional model of the sealed rotor system considering the gear meshing characteristics, which includes
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Characteristics of MATLAB and its application in gear industry
Matlab is a very powerful and popular mathematical analysis software. Its full name is ma trix Laboratory (i.e. Matrix Laboratory).
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Time varying meshing stiffness of Spur Planetary Gear System
In essence, stiffness excitation is a kind of parametric excitation based on the number of teeth. In the process of
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Description of nonlinear factors of Spur Planetary Gear System
From the point of view of vibration theory, gear transmission system is more complex than ordinary mechanical system, and the
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Dynamic model of planetary gear speed increasing system
In terms of theoretical analysis, the theoretical basis of gear system dynamics has gradually developed from the earliest impact theory
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Dynamic characteristics of sealed rotor system with gear meshing characteristics
Taking the practical engineering application as the background, this paper takes the sealed rotor system considering the gear meshing characteristics