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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Scientific
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 […]
Scientific
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 […]
Scientific
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 […]
Scientific
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 […]
Scientific
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 […]
Scientific
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 […]
Scientific
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 […]
Scientific
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 […]
Scientific
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 […]
Scientific
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 […]
Scientific
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 […]
Scientific
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 […]
Scientific
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. […]
Scientific
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 […]
Scientific
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 […]
Scientific
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 […]
Scientific
Technological normal curvature and short-range torsion of spiral bevel gears
The obtained normal curvature and short-range torsion Aa1, BA1 and CA1 are along the direction of EA1 and TA1. Let […]
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Comprehensive measurement method and technology of large gear
The comprehensive measurement method and technology of large gears are still developed from the comprehensive measurement of medium and small […]
Scientific
Tooth surface equation of parallel shaft pure rolling gear
Taking the points on the contact lines R1 and R2 as the coordinate origin and the base vectors of fixture […]
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Measurement of large gear with side gauge
The side measuring instrument is positioned and installed on the machine tool (generally installed on the tool holder) to realize […]
Scientific
Prospect of spiral bevel gear NC Machining Technology
Because the research idea is novel, the electromechanical combination involves a wide range, and needs solid mathematical theoretical knowledge, especially […]
Scientific
Establishment of conjugate contact line for parallel shaft pure rolling internal meshing line gear
Establish the space right-handed coordinate system, as shown in the figure. The installation center distance of linear gear pair is […]
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Measurement of large gear with top mounted measuring instrument
Aiming at the limitations of desktop measuring instrument, the upper measuring instrument has a great change in the measurement idea. […]
Scientific
Improvement measures and validity verification of forging crack of a fuel gear pump shell
According to the cause analysis of the shell forging crack, the forging deformation is increased by increasing the forging process, […]
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Desktop instrument for measuring large gears
Desktop instrument the desktop measuring instrument used for large gear measurement is basically the amplification of the desktop measuring instrument […]
Scientific
Principle of combined measurement for super large gear
The combined measurement network of super large gear includes laser tracker and its measurement system, flexible joint coordinate measuring arm […]
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Principle and technology of on machine measurement of large gear
Gear is famous for its complex shape all the time, and its various error inspection items are not only various, […]
Scientific
Finding the proper measuring ball diameter of helical gear
Diagramming the imaginary circle diameter DPT of helical gear measuring ball The figure is a diagram of the imaginary circle […]
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Common methods to solve gear contact problems
The establishment of the mechanical model simplified the gear tooth as a cantilever beam, and the contact state under load […]
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Tooth loaded contact analysis (LTCA) has become an important gear design technology
With the development of machinery industry, the gear transmission with compact structure, long life and suitable for heavy load and […]
Scientific
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 […]
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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 […]