Introduction of fixture for hobbing helical gear
In order to meet the requirements of hobbing helical gear on the gear hobbing machine, the tooling fixture is designed […]
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Solid modeling of helical gear based on Pro/E software
Before the solid modeling of helical gear in Pro/E software environment, firstly, the coordinates of discrete data points calculated in […]
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Finite element modeling and analysis steps of static loading contact analysis of spiral bevel gear
The working condition of spiral bevel gear pair can be simulated in computer by properly preprocessing the finite element mesh […]
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Generation of tooth surface data points of helical gear based on MATLAB
Due to the complexity of face gear tooth surface, it is very difficult to create a complete helical gear model […]
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Experiment on automatic correction of tooth profile deviation of spiral bevel gear
Due to the large number of moving axes of spiral bevel gear milling machine, there may be errors in the […]
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Undercutting theory of helical gears
When the helical gear meshes with the tool, the speed of the former at the contact point is zero. At […]
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Cutter tooth surface equation of helical gear
When deriving the helical gear equation, the main parameters of the tool need to be determined are: normal surface modulus: […]
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Force analysis of double point contact equal angle spiral bevel gear
The bevel gear model is analyzed by finite element method. The grid size setting, physical parameters, boundary conditions and their […]
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Dynamic performance analysis of modified straight bevel gear
The dynamic analysis of the straight bevel gear system is carried out by using romax software, and the dynamic response […]
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Influence of error coupling compensation on meshing characteristics of herringbone gear
According to the finite element simulation results of and axial displacement, the assembly offsets of 0.05 mm, 0.1 mm, 0.15 […]
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Conjugate curve equation of pure rolling contact of bevel gear
For a pair of bevel gears, to maintain pure rolling contact means that there is no relative sliding motion between […]
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Analysis of transmission error and contact load of modified spur bevel gear
1) Tooth isometric modification The straight bevel gear model with equidistant modification of tooth direction is imported into romanxdesigner software […]
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Axial force analysis of herringbone gear with centering error
As the force along the axis of gear meshing, the axial force determines the axial vibration of gear, and indirectly […]
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Transmission error of straight bevel gear transmission
The transmission error of straight bevel gear is one of the main internal incentives to study the dynamic performance of […]
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Axial displacement analysis of herringbone gear with centering error
When the herringbone gear pair with alignment error is meshed, the eccentric load on the tooth surface will have a […]
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Tooth contact analysis of herringbone gear with centering error
Based on the accuracy standard, combined with the structural constraints of large energy machinery and equipment and the requirements of […]
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Solution of dynamic differential equation of straight bevel gear
For a long time, because there is no effective mathematical method to solve the dynamic equation of straight bevel gear, […]
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Establishment of dynamic model of spur bevel gear transmission
Only by establishing an accurate mathematical model of gear transmission, can the dynamic simulation analysis of gear transmission process be […]
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Three dimensional solid modeling of modified involute straight bevel gear
According to the determined modification parameters and combined with the established straight bevel gear model, the tooth profile arc modification […]
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Load contact analysis of herringbone gear with centering error
In order to verify the accuracy of the load contact analysis model of herringbone gear with centering error, a three-dimensional […]
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Load contact analysis model of herringbone gear with centering error
Based on the helical gear LTCA model obtained by Litvin et al. Based on the finite element loading contact analysis […]
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Machining simulation of two axis linkage milling of spiral bevel gear
Based on the establishment of the simplified model, gear blank model and tool model of the two-axis linkage gear cutting […]
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Implementation scheme of two axis linkage gear cutting of spiral bevel gear
It can be seen from the analysis that the two-axis linkage cutting machining of spiral bevel gear is mainly composed […]
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Digital modeling technology of spiral bevel gear
The spiral bevel gear calculation software is used to analyze the simulated contact mark. The calculated meshing area is compared […]
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Simulation of machining face gear with spherical hob
The gear hobbing process of face gear spherical hob is simulated by VERICUT software. Since the minimum number of undercutting […]
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Machining simulation of three-axis linkage milling of spiral bevel gear teeth
Based on the establishment of the simplified model, gear blank model and tool model of the gear cutting machine tool, […]
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Profile equation of face gear hobbing
The coordinate system of face gear hobbing is established, as shown in Figure 7. The fixed coordinate system SH0 (xh0, […]
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Cutting principle of convex tooth surface based on generation line of spiral bevel gear tooth surface
Based on the analysis of the generation principle of convex tooth surface, it can be seen that the convex tooth […]
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Basic worm equation of spherical hob for face gear
Taking right-hand rotation as an example, the coordinate system for the forming of face gear spherical hob based worm is […]
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Key geometric elements and names of spiral bevel gears
The tooth profile of spiral bevel gear is mainly composed of concave tooth surface, convex tooth surface, tooth top part […]
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Design principle of spherical hob based worm for face gear
Similar to the evolution from rack to ordinary gear hob, the evolution process from cylindrical gear to spherical hob based […]
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Influence of input torque on dynamic equation of bevel gear
In order to consider the influence of torque on the dynamic response of central transmission bevel gear, keep the input […]
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Tooth surface equation of face gear
The forming of face gear tooth surface is based on the generating cutting of cylindrical spur gear shaper and face […]
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Common heat treatment defects of gears and their prevention methods
1. Cracks 1) In the carburizing diffusion stage, the carbon potential is high, the carburizing layer carbon concentration is too […]
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Defects of gear heat treatment and its influence
Whether carburizing quenching, carbonitriding quenching, induction heating quenching or overall heating quenching, the possible heat treatment defects during gear quenching […]
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Traveling wave vibration speed of bevel gear
After the natural frequency and vibration mode of bevel gear are determined, the resonance speed diagram shown in the figure […]
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Failure analysis of heat treatment crack of spiral bevel gear
(1) Analysis of crack properties From the crack morphology, the crack originates from the stress concentration. Whether the root of […]
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Process and results of heat treatment crack failure test of spiral bevel gear
(1) Macro morphology of crack: observe the crack morphology of three pairs of spiral bevel gears from the appearance, as […]
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Development and types of Involute Gears
Gears are widely used in mechanical transmission devices and are one of the common mechanical parts. Human beings began to […]
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Calculation of normal deviation of tooth surface of logarithmic spiral bevel gear
When measuring the tooth surface of logarithmic spiral bevel gear, there is an error between the theoretical value and the […]
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NC programming and machining of spiral bevel gear tooth top rounding
The three-dimensional tooth digital model is obtained through reverse engineering modeling. The digital model only includes tooth width, face cone, […]
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Defects of gear heat treatment and its influence
Various defects produced during heat treatment of gears will have potential or obvious adverse effects on their quality and service […]
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First order error of difference surface equation of logarithmic spiral bevel gear
Expressed as the shape error of logarithmic spiral bevel gear, the vertical distance between each measuring point on the real […]
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Establishment of reverse engineering model of spiral bevel gear
The machining process of spiral bevel gear is to first establish the theoretical mathematical model, then convert the mathematical model […]
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Processing of data points on tooth surface of logarithmic spiral bevel gear
When the complex data of logarithmic spiral bevel gear tooth surface is obtained by laser scanner, the accuracy of data […]
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Insufficient hardness of gear core
The center of carburized gear is required to have a certain hardness. When the hardness is low, the yield point […]
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Comparative analysis of reverse engineering of non-circular gears
Select the seedling taking track in the seedling taking mechanism of double arm second-order free non-circular gear planetary system pot […]
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The surface hardness of gear is low after quenching
The low surface hardness of carburized gear will reduce the wear resistance and fatigue resistance of gear, and have an […]
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Uneven carburizing layer depth of gear
The depth of carburizing layer on the gear surface is uneven, resulting in discontinuous performance of different parts. The weak […]
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The hardened layer of gear is too shallow
The surface hardness of carburized gear is too shallow, which not only reduces the anti peeling performance of surface hardened […]
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Excessive carburization of gear surface
Due to improper treatment and excessive carburization, massive and network carbides will appear on the surface of carburized gear. When […]
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Calculation of axial force of hypoid gear pair
For loaded working side: The axial force fax1d of hypoid gear pinion is: The axial force fax2d of hypoid gear […]
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Causes and preventive measures of metallographic structure and heat treatment defects of rear axle gear
1. Defect content Including coarse martensite, excessive retained austenite as shown in figure (a), excessive surface carbides as shown in […]
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Accurate modeling of hypoid gear pair with small number of teeth and large reduction ratio
Taking the modeling process of small wheel as an example, this paper introduces the modeling process of hypoid gear with […]
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Calculation of tangential force of hypoid gear pair
In order to ensure that the working surface of the designed hypoid gear with small number of teeth bears the […]
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Influence of input torque on dynamic load performance of spiral bevel gear transmission
Other parameters remain unchanged. Under different input torques, the variation of dynamic load coefficient amplitude of spiral bevel gear transmission […]
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Principle of virtual gear hobbing
As shown in the figure 1, the tool rack pitch line AB is a straight line. During gear hobbing, AB […]
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Undercut inspection of hypoid gear
In general, undercutting will not occur in the large wheel of hypoid gear with small number of teeth and large […]
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Hobbing linkage model of high order elliptic helical gear
The feed motion of hobbing helical gear is a helix, which can be divided into the vertical motion VZ of […]
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Determination of pitch cone of hypoid gear with few teeth
For the design of hypoid gear pair blank with small number of teeth and large reduction ratio, the axle intersection […]