Selection of cutter face form of scraping cutter head for spiral bevel gear
A Rake face selection Generally, tool regrinding is carried out on the rake face. The scraping cutter head is a […]
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Precision improvement of laser tracking measurement for super large gear
In industry, the gear with diameter over 3000mm is called super large gear, which is the most widely used transmission
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Calculation of chord tooth thickness and chord tooth height of double circular arc gear drive by Newton iteration method
Our country began to study the double circular arc gear from the mid-1960s, but entered the substantive research, test and
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Using CAXA to figure out the proper measuring ball diameter of helical gear
In the manufacture, inspection and design of gears, the span of measuring ball is widely used to measure the tooth
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Formation mechanism of micro pitting corrosion of gears and normal and tangential load conditions
Under the condition of non lubrication, according to Hertz theory, the contact geometry of gear tooth surface can be transformed
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Spiral bevel gear is the most widely used spiral gear in production
Spiral bevel gear is the most widely used spiral gear in production. Because it has the characteristics of stable transmission,
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Formation mechanism of micro pitting corrosion of gears
In the process of gear transmission, the maximum shear stress caused by repeated rolling sliding contact leads to the plastic
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Micro pitting damage of lubricated contact gear based on contour integral
In the process of gear transmission, if it can not get good lubrication, a lot of micro pitting corrosion pits
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Residual life prediction of gear based on deep belief network integration
Due to the influence of alternating stress, the gears in many equipment often have the faults of tooth surface wear
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Fault diagnosis of shearer rocker gear based on depth residual network
Shearer is one of the core equipment of coal mining face. Rocker arm is the key power component of shearer
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Gear fault diagnosis based on multi scale fuzzy entropy
As a common part of mechanical equipment to transmit power and motion, gearbox has been widely used in modern mechanical
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Establishment of RBF neural network prediction model for planetary gear
1. Input and output of neural network The analysis of meshing force of parallel coupled planetary gear includes five factors:
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Dynamic meshing force analysis of parallel planetary gear based on RBF neural network
The coupling phenomenon of meshing force often appears in the dynamic response of coupled planetary gears. In previous scholars’ research,
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Design and Simulation of tractor gear system
Dongfanghong tractors produced by Luoyang No.1 tractor manufacturing plant of China are very important traction equipment for farming, harvesting and
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Design and Simulation of tractor gear system
In modern product design, the traditional experience design, analogy design and static design can not meet the needs of engineering,
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The effective solution to the problem of gear broken in mining machinery
1. estimate the load bearing capacity of the mechanical gear in advance. In fact, the load bearing capacity of the
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The reason of mechanical gear breaking under eccentric load
In fact, there are many reasons leading to the problem of eccentric load and broken teeth of mechanical gears. The
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Influence of accuracy characteristics of machine tool on large gear error
From the configuration principle, the accuracy characteristics of such machine tools can be obtained: ① The tooth profile error is
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This paper studies the causes of static broken teeth of mechanical gears
In the mining work, the actual working environment is very poor, the working equipment is not perfect, so the gear
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Analyzes the causes of fatigue fracture of mechanical gears
In fact, the so-called fatigue tooth breaking problem is that the mechanical gear breaks, and the whole spur gear will
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Optimization of machining process of mechanical gear
Although the strength of mechanical gear bearing capacity does not entirely depend on gear hardness, improving gear hardness is still
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Optimization of mechanical gear design
Because the mechanical operation is mostly heavy load, medium and low speed transmission, most of them start frequently and often
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Material selection and processing technology of mechanical gear
1. Material selection of mechanical gears Other countries in the world mainly use Cr Ni and Cr Ni Mo carbon
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Material selection and design optimization of mechanical gear
Gear is a kind of mechanical element with continuous meshing transmission of motion and power on the rim, which plays
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Effect of adjustment parameters of machine tool cutting on tooth contact of spiral bevel gear
The adjustment parameters of machine tool cutting play an important role in the tooth contact of spiral bevel gear. How
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Dynamic characteristics of planetary gear transmission system with sun gear failure
Planetary gear transmission system has the advantages of stable operation, high bearing capacity and high transmission ratio, so it has
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Fatigue performance of internal meshing modified gears with cracks
Gear drive is widely used in heavy industry and manufacturing industry, and is often used as reducer, speed increaser, differential,
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Reliability optimization of transmission gears for flying vehicles
The traditional concept is that flying vehicle is a land and air amphibious vehicle with the functions of flying in
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Fracture analysis of driving gear of engine starting motor
The fracture of the driving gear is due to the looseness of the fastening nut of the starting motor gear,
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Adhesion wear of involute spur gear at low speed
Adhesive wear is the most common fault type on the working surface of mechanical system, which often occurs on the
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Fracture analysis of driving gear of starting motor
It is concluded that the fracture of the driving gear is due to the looseness of the fastening nut of
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Force analysis of driving gear of starting motor
1.Principle of starting engine with starter motor driving gear The starting motor of internal combustion engine is to convert electric
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Main influence factors of gear heat treatment deformation
In the process of gear heat treatment, due to various environmental factors and other external factors, gear deformation occurs. According
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Causes and control methods of gear heat treatment deformation
Gear is the main work piece in mechanical transmission, and it is also an important force unit. Due to the
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Kinematic geometry measurement concept of gear accuracy
Gear kinematic geometry measurement technology is a kind of technology to study and realize gear geometric error measurement from the
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Research on fault diagnosis of gearbox
As a device that can effectively change the speed and transfer power, gearbox is widely used in various types of
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Research on fatigue crack of low speed and heavy load gear
Taking low-speed and heavy-duty gear as the research object, the fatigue crack propagation and fatigue fracture of gear teeth are
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Bending fatigue test of low speed and heavy load gears
Before carrying out the bending fatigue test, it is necessary to determine the stress level of the test. Two of
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Fatigue crack of compact tensile specimen of 42CrMo steel low speed heavy duty gear
Fatigue cracks often occur when the component is under the condition of alternating load for a long time. The initial
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Analysis on fatigue crack propagation of low speed and heavy load gears
The fatigue crack growth mechanism of 42CrMo steel was studied by fatigue crack growth test. The law of fatigue crack
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Analysis of fatigue fracture morphology of low speed and heavy load gears
Fatigue fracture is the surface formed by the fatigue fracture of the test sample or component during the test or
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Research on fatigue crack growth behavior of low speed and heavy load gears at China and abroad
With the continuous improvement and innovation of fatigue crack testing methods, the research on small fatigue cracks has gradually changed
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Research on fatigue damage of low speed and heavy load gears by Chinese scholars
Wu Zhenpeng and others took the helical gear as the research object, modeled the helical gear, simulated the crack propagation
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Study on bending fatigue damage and life of low speed and heavy duty gears
Robert Basan proposed the mathematical model of slip line contact and the calculation model of multiaxial fatigue life based on
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Processing technology optimization of low speed and heavy load mechanical gear
Although the strength of mechanical gear bearing capacity does not entirely depend on gear hardness, improving gear hardness is still
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Vibration characteristics of cylindrical gear pair considering tooth thickness deviation
Gear transmission is one of the most commonly used transmission in all kinds of machinery, which has the advantages of
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Design optimization of low speed and heavy load mechanical gear
Because the mechanical operation is mostly heavy load, medium and low speed transmission, most of them start frequently and often
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Material selection of low speed and heavy load mechanical gears
Comparison of machinability and forgeability between Ni Cr and Ni Cr Mo steels The machinability of different materials is mainly
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Material selection and technical requirements of low speed and heavy load mechanical gears
Other countries in the world mainly use Cr Ni and Cr Ni Mo carbon steel. Compared with Mn Cr steel
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Verification of numerical model for the effect of lubrication contact on gear pitting process
In order to verify the correctness of the numerical model, Hertz pressure distribution is applied on the contact model, and
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Material selection and design optimization of low speed and heavy load mechanical gear
Gear is a kind of mechanical element with continuous meshing transmission of motion and power on the rim, which plays
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Deep carburizing of heavy duty gears
Although the deep carburizing of large heavy duty gears improves the bearing capacity and prolongs the service life, it still
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Research on wear of low speed and heavy load gears
Tooth wear is one of the main failure forms of low speed and heavy load gear transmission. H. Winter has
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Standards and technical requirements for developing deep carburized heavy duty gears
The important parameters to ensure the load-bearing capacity of low-speed and heavy-duty hard face gear are: enough central strength and
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Equipment requirements for developing deep carburizing large heavy duty gear
The deep carburizing of large heavy duty gears has a history of more than 10 years in foreign countries, with
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Fault diagnosis model of shearer rocker gear based on RESNET
1. Selection of residual unit module In RESNET, there are two kinds of residual unit modules: original residual unit module
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Reasonable selection of hardening heat treatment method for low speed and heavy load gears
It is very important to choose the hardening heat treatment method of low speed and heavy load gear reasonably. The
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Tooth surface plastic deformation of low speed and heavy load gear with soft tooth surface
The main damage form of gear in soft tooth surface rolling mill is severe plastic deformation of gear surface, which
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Ways to improve the bearing capacity of low speed and heavy load gear with soft tooth surface
Using normalizing big gear and quenching and tempering small gear, the tooth surface after use can be extruded into mirror
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Eliminating early fatigue pitting of low speed and heavy load gear with soft tooth surface
As the cement mill, mine hoist and other soft tooth surface reducer gear, the main problem is to eliminate early