Present situation and Development of Spiral Bevel Gear Machine tools in China
The research of bevel gear in China started relatively late. Since the 1970s, the gear machine tool of Gleason Company […]
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Influence of load on stress intensity factor at crack front of heavy duty gear
The gear pair model with semicircular initial crack is established. The mode 1 stress intensity factor is calculated when the
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Calculation of cutting tool position of spiral bevel gear NC machine tool
Tool position calculation is to calculate the position and attitude of the tool relative to the workpiece (referred to as
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Influence of crack size on stress intensity factor at crack front of heavy duty gear
The figure is a graph of the leading edge mode I stress intensity factor of a semicircular crack with a
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Numerical simulation of fatigue crack propagation in tooth root of meshing heavy duty gear
Through the bending fatigue test and corresponding numerical simulation, it is obtained that the fracture of the tooth root is
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Bevel Gear Machining system of KlingeInberg and Oerlikon
KlingeInberg company of Germany recently developed a new type of gear cutting machine: KNC/S35, which is a universal CNC spiral
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Analysis of static strength of transmission gear in heavy equipment
After setting the corresponding analysis conditions, enter the solution analysis stage. After the calculation, you can get the Mises equivalent
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Gleason Bevel Gear Machining system
Gleason is the main supplier of quasi-hyperboloid bevel gear machine tools. The original Gleason No.116 gear milling machine of the
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Pitch cone parameters of spiral bevel gear pinion machine tool
The pitch distance of the production wheel is R01, the helix angle β 01, and the rolling correction coefficient of
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Experimental study on bending fatigue of 42CrMo heavy equipment transmission gear
Cracks will first appear at the tooth root of the gear, because when the gear is running, the meshing other
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Analysis of stress and strain distribution law of heavy load transmission gear
Von Mises proposed for material conditions under complex stress: The shape change energy density is: Therefore, Mises yield condition is:
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Present situation and Development of Spiral Bevel Gear Machine tools at Home and abroad
The history of gear technology can be traced back to 3000-5000 AD, almost synchronized with human history. Gear transmission is
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Determination of Cutter head parameters of Spiral Bevel Gear small Wheel Machine tool
When the small wheel is machined by the variable method, the tooth profile angle of the small wheel cutter head
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Curvature and normal Vector at the Tooth Surface calculation Point of Spiral Bevel Gear
The normal curvature and short-range torsion of the tooth surface of the pinion at the calculated point M are as
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Production and Development of Bevel Gear Machine tools in China
Domestic machine tools for processing spiral bevel gears mainly rely on imports. For example, Shanghai Machine tool Domestic machine tools
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Numerical simulation of fatigue propagation of mode I crack in compact tensile specimen of heavy load transmission gear
The model used for numerical simulation of fatigue crack growth is the same as the compact tensile specimen of 42CrMo
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Mode I crack fatigue growth test and fracture morphology analysis of compact tensile specimen of heavy load transmission gear
By referring to the national standard GB / t6398-2000 test method for fatigue crack growth rate of metallic materials, the
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Induced curvature of large and small Gear Tooth Surface at the calculated Point of Spiral Bevel Gear
Let the angular velocities of large and small wheels are: ω G2 and ω G1: The speed of the big
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The purpose and significance of studying Bevel Gear Machining Machine tool
The theory of spiral bevel gear was put forward by E. Wildhaber, M.L. Baxter, a scientist of Glenson Company in
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Fatigue crack growth rate formula of heavy transmission gear under different stress ratio
The experimental measurement shows that the lower threshold of fatigue crack growth is 15.29 and 5.08 when the stress ratio
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Experimental study on fatigue crack growth rate of heavy transmission gear under different stress ratios
As can be seen from the figure, when the stress ratio r = 0.1 and the fatigue crack length α
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The production of bevel gears in China is growing rapidly
Gear production plays a very important role in the modern machinery manufacturing industry, especially in the production of automobiles, aircraft,
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Tooth surface curvature of spiral bevel gear
The right-hand wheel and the left-hand production wheel are an aligned hyperboloid gear pair, and the tooth surface of the
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Fatigue crack propagation of heavy load transmission gear
Elber proposed the concept of crack closure, and used the theory of crack closure to explain the fatigue crack growth
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Shaping and regrinding method of sharp tooth scraping cutter head with hard tooth surface of spiral bevel gear
This paper mainly discusses the shaping method and regrinding method of sharp tooth scraping cutter head with hard tooth surface
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Calculation of Tooth Surface coordinates of Spiral Bevel Gear
When the parameters of the motion law of the machine tool are determined, the motion equations can be formed by
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Heavy duty transmission gear is the core component of large equipment transmission
Heavy duty gear is the core component of large equipment transmission. It is widely used in mining, metallurgy, building materials,
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New tooth profile design and regrinding compensation method of sharp tooth scraping cutter head of spiral bevel gear
Professor Zhang Shusen of Liaoning University of engineering and technology put forward a new method of tooth profile design and
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Parameters of spiral bevel gear big wheel machine tool
The process pitch cone node of the spiral bevel gear coincides with the design pitch cone node, the pitch cone
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Development of scraping machining of hard tooth surface of spiral bevel gear in China
Since 1982, Hanjiang tool factory and Taiyuan Heavy Machinery Factory have cooperated to study 18 ‘single edge precision cutting cemented
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Establishment and discretization of Tooth Surface equation of Spiral Bevel Gear
The workpiece coordinate system is established by taking the installation surface of the workpiece gear as the coordinate plane and
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Development and present situation of scraping machining of hard tooth surface of spiral bevel gear abroad
Since the 1960s, Japan, the former Soviet Union and some other countries have successively carried out the development and research
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Cutting Surface equation of Spiral Bevel Gear Cutter head
The axial section of the cutter head is made, and the coordinate system is established as shown in the figure.
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Comparison between scraping and grinding of hard tooth surface of spiral bevel gear
During gear grinding, the surface layer structure of the gear will change, that is, grinding burn. The reason is that
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Mathematical Model of NC Machine tool for Spiral Bevel Gear
Establish the coordinate system as shown in the figure according to the geometric model of the machine tool. Among them,
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Scraping machining of hard tooth surface of spiral bevel gear
Scraping can be defined as such a process, which is to remove the small machining allowance on the hardened tooth
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Direct and indirect generating method of Spiral Bevel Gear and hypoid Gear
Gear machining usually has direct generating method and indirect generating method. The direct generation method is to make the cutting
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Gear lapping and grinding of hard tooth surface of spiral bevel gear
Gear lapping is a traditional process. It is a method of micro removal of workpiece surface with free abrasive particles
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Development processing method of Spiral Bevel Gear and hypoid Gear
Spiral bevel gears and hypoid gears are on hypoid machine tools. The design principle of this machine tool is shown
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Influence of configuration principle of gear hobbing on error characteristics of large involute helical gear
The mentioned feature line family is also of great significance to study the machining principle of gear profile, because any
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Constraint conditions of working tooth surface of spiral bevel gear
When the gear pair is driven, the meshing point of the tooth surface expands into an approximate elliptical contact area
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The test of non-circular gear accurate transmission design result of a kind of stepless transmission mechanism
1. Simulation of gear shaping In order to verify the correctness of non-circular gear profile, matlab programming is used to
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Error characteristics of large involute gear profile
The involute profile is involute, and the helical profile is involute. From the perspective of engineering, in order to understand
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Solving the profile of noncircular gear
The formula is the calculation equation of non-circular gear profile (XCK, yck), and (XG, YG) is the involute profile of
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Key technical problems of on-line measurement of large gears
Based on the general guiding ideology and on the basis of fully considering the characteristics and difficulties of the proposed
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Design of tooth root transition curve of noncircular gear
Generally, transition curve should be designed for gear root, which can reduce stress concentration and improve gear bearing capacity. There
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Precise measurement of large gears
Based on the large wheel processing equipment (large gear hobbing machine), the precision measurement of large gears is studied. The
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Tooth profile design of noncircular gear shaper cutter
As shown in Figure 1, OC is the center of gear shaper cutter, G is any point on the initial
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Frame idea of on-machine measurement of large gears
The main measurement methods of large gears are summarized. Based on the analysis, it is concluded that on-machine measurement has
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Solving the movement track of gear shaper cutter center by noncircular gear
When the gear shaper cutter Hobbes the non-circular gear, its indexing circle does pure rolling on the pitch curve of
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Tooth load distribution of spiral bevel gear
Spiral bevel gears are widely used in aviation, automobile, shipbuilding and other industries. When considering the load distribution of multi
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Characteristics and difficulties of large gear measurement
The characteristics and measurement difficulties of large-size gears are analyzed, which can be divided into the following aspects: (1) Oversized
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Flexibility matrix and stiffness matrix of contact finite element model of spiral bevel gear
The flexibility matrix method is used to solve the three-dimensional elastic contact problem. The solution of the contact problem of
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Solving pitch curve curvature radius of noncircular gear and selecting gear shaper cutter parameters
The design methods of non-circular gear tooth profile mainly include envelope method, hobbing tooth profile normal method and shaping tooth
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Solving arc length of pitch curve of noncircular gear
Suppose that the pitch curve arc lengths of the driving and driven noncircular gears are S1 and S2, respectively The
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Classification of large gears
Generally, the gear whose parameters, size and weight are large enough to exceed the conventional conditions is called large gear.
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Solving pitch curve of noncircular gear
As shown in Figure 1, P is the initial meshing point of the non-circular gear, O1 and O2 are the
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Principle and method of on machine measurement of large gear
The particularity of large gear and its measurement is analyzed in detail, and the principle and key technology of gear
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Kinematics simulation of pure rolling internal meshing line gear based on cylindrical helix
According to the tooth surface generation method of parallel shaft internal meshing linear gear and pure rolling meshing condition introduced
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Tooth surface construction of parallel shaft pure rolling gear
The different choice of sign in the tooth profile section curve equation will affect the convexity and convexity of tooth