The conversion formula for calculating the diameter of measuring ball of helical gear end profile
The figure shows the geometric relationship of the measuring ball in the alveolar. The N-N section is the normal section […]
Scientific
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Gleason system is the main system of spiral bevel gears in China
Gleason system is the main spiral bevel gear produced and used in China. Gleason gear technology has been the research
Scientific
Tooth profile drawing and auxiliary line drawing of helical gear end face
It is known that the parameter of an external cylindrical helical gear is Mn = 5, α n= 20 °，
Scientific
Geometric Model of NC Machine tool for Spiral Bevel Gear
According to the spiral bevel gear CNC machine tool of Gleason Company, the geometric model of the CNC machine tool
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Spiral bevel gear is widely used at present
Spiral bevel gear has been widely used in aviation, automobile, shipbuilding, engineering machinery and many other industrial fields. Spiral bevel
Scientific
Effect of applied torque on vibration of cylindrical gear pair
In order to study the influence of different applied torques on the vibration characteristics of gear pair and keep other
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Tooth surface contact of spiral bevel gear based on genetic algorithm
The transmission performance of spiral bevel gear pair 1 is mainly manifested in the angle of tooth surface contact trace,
Scientific
Influence of helix angle on vibration of cylindrical gear pair
In order to study the influence of different helix angle on the vibration characteristics of gear pair, keeping other parameters
Scientific
Influence of tooth thickness deviation on vibration of cylindrical gear pair
In order to study the influence of tooth thickness deviation on the vibration characteristics of gear pair and keep other
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Load bearing characteristics of large gear rotor of integral multistage centrifugal compressor
Integral multistage centrifugal compressor is widely used in energy, air separation and chemical industry due to its compact structure, strong
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Noncircular gear of a stepless transmission mechanism
Circular gear is a kind of special gear parts, its pitch curve is not circular, so the speed ratio of
Scientific
Influence of tooth thickness deviation on vibration response of gear pair
With the help of ANSYS / LS-DYNA, the finite element model of gear meshing pair is solved, and the gear
Scientific
Influence of tooth thickness deviation on meshing stiffness and transmission error of gear pair
The time-varying meshing stiffness excitation and the transmission error excitation are two very important excitations in the actual operation of
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Parallel shaft pure rolling internal meshing line gear
Due to the complex tooth profile of traditional industrial gears, it is very difficult to miniaturize and micro nano application.
Scientific
Establishment of vibration characteristic model of cylindrical gear pair considering tooth thickness deviation
Because the backlash of gear pair is usually realized by controlling the tooth thickness deviation, there must be a certain
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Failure analysis and Discussion on forging of a fuel gear pump shell
The crack is located in the middle of the shell and at the root of the processed 8-shaped hole. The
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Spiral bevel gear sharp tooth scraping cutter head
The scraping cutter head for hard tooth surface of spiral bevel gear is a direct tool for scraping processing. Its
Scientific
Establishment of numerical model for pitting corrosion process of gear in lubrication contact
Based on ABAQUS software, contour integral and MTs criterion are used to simulate the process of pitting corrosion crack propagation
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Analysis on forging crack of a fuel gear pump shell
Fuel gear pump is a kind of product that relies on the change of working volume formed between the pump
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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
Scientific
Analysis of experimental results of shearer rocker gear fault
The vibration data of each state of gear under 50% load is selected for experiment, and the sample length is
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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
Scientific
Fault data acquisition of shearer rocker gear
The working environment of shearer is bad, and the gear fault data of rocker transmission system is not easy to
Scientific
Prediction of RBF neural network model for planetary gear
1. Training data validation The 90 groups of trained samples are predicted by the RBF neural network established. Fig. 1
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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
Scientific
Influence of speed and load on meshing force and frequency coupling of planetary gears
The rotational speed of P10 row is set at 3 000 R / min, and the load of P20 row
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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
Scientific
Expression of meshing force of parallel planetary gears
The connection form of parallel coupling planetary gear is shown in Figure 1, and each row has two parts connected.
Scientific
Floating track of sun gear in planetary gear transmission system
Under the same basic working condition, the floating track of the sun wheel under three kinds of fault factors is
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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
Scientific
Dynamic analysis of planetary gear transmission system with sun gear failure factors
1. Simulation of planetary gear transmission system under fault free condition Using the established planetary gear dynamic model, when all
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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
Scientific
Fatigue crack life analysis of internal meshing modified gear
After the completion of the first propagation, the stress intensity factor is calculated, and the second crack propagation is carried
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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
Scientific
Life analysis of internal meshing modified gears with cracks
ABAQUS software and FRANC3D software will be used to analyze the fatigue life of internal gear plate crack [4-6]. The
Scientific
Finite element analysis of internal modified gear
Because the working condition of the gear is the same when the inner gear plate and the outer gear contact
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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 analysis of internal modified gear
According to the mechanical model of internal gear pair and gear dynamic model, the dynamic model of internal modified gear
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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,
Scientific
Establishment of internal modified gear model
The three ring drive mainly adopts the internal meshing angle modified gear, so the construction method of modified gear is
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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
Scientific
Experimental data validation of planetary gearbox
The effectiveness of arcmde features is verified by using the fault simulation experimental data of planetary gearbox. As shown in
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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,
Scientific
Multi scale dispersion entropy of planetary gear crack
DE is an index to measure the complexity or irregularity of time series, which has the advantages of high calculation
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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
Scientific
Simulation verification test of noncircular gear stepless speed regulation
1. Construction of experimental platform In order to verify the correctness of the design of non-circular gear, the differential equation
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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
Scientific
Simulation verification of noncircular gear stepless speed regulation
1. Modeling of non-circular gear stepless speed regulation mechanism This design mainly lies in the research of the output speed
Scientific
Parameter matching design of noncircular gear
Due to the different speed ratio characteristics of non-circular gears with different parameters, the design and processing of non-circular gears
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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
Scientific
Branch matching design of noncircular gear
From the application characteristics of the stepless speed regulating mechanism, it can be seen that the non-circular gear stepless speed
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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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Pitch curve design of noncircular gear pair
According to the structural relationship of the non-circular gear stepless speed regulation mechanism shown in Fig. 1, as the generation