Surface crack test of s40c steel gear
1. Chemical composition analysis The chemical composition analysis results of steel gears are shown in Table 1, which meet the […]
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Grinding burn and grinding crack of hard tooth surface of cylindrical gear
In the general NC grinding process, when the grinding wheel bears different loads, the cutting force changes accordingly. The change […]
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Influence of elastic support system on dynamic transmission error of spiral bevel gear
The dynamic transmission error of spiral bevel gear system is related not only to the mechanical and geometric properties of […]
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Example comparison of digital real tooth surface modeling of hypoid gear
Taking a hypoid gear as an example, the geometric parameters of the hypoid gear and the setting parameters of the […]
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Parameter determination and tooth surface error analysis of spiral bevel gear
The real tooth surface of large and small wheels is obtained by scanning measurement of spiral bevel gear tooth surface […]
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Pretreatment of finite element model of spiral bevel gear
The pre-processing of spiral bevel gear finite element analysis includes element selection, application of load boundary conditions and setting of […]
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Smoothing algorithm for discrete data points of digital tooth surface of hypoid gear
The traditional discrete data fairing algorithm is based on the curvature calculation of interpolation curve, and the “noise points” are […]
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Establishment of finite element model of spiral bevel gear
Three finite element models of gear pairs are established on ABAQUS platform: theoretical tooth surface, only large wheel meshing surface […]
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Improved local interpolation algorithm for digital tooth surface of hypoid gear
The traditional NURBS surface interpolation algorithm interpolates the curve first and then fairs the curve. The defect of this method […]
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Dynamic transmission error of spiral bevel gear with real tooth surface
1. Mathematical model of transmission error Figure 1 shows the dynamic model of spiral bevel gear transmission system under elastic […]
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Real tooth surface model of hypoid gear based on non feature discrete data block technology
In the process of constructing the real tooth surface of digital hypoid gear, in order to quickly and accurately describe […]
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Coupling dynamic modeling of helical gear modification and friction excitation
According to Newton’s second law of motion and D’Alembert’s principle, an 8-DOF torsional vibration and translational vibration coupling dynamic model […]
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Real tooth surface model of hypoid gear based on three coordinate measurement
In the actual use of hypoid gears, the wear phenomenon can be regarded as tooth profile error. In order to […]
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Theoretical tooth surface model of hypoid gear
In order to facilitate the establishment of the real tooth surface model, the theoretical tooth surface model is established first. […]
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Calculation of meshing stiffness of helical gear before and after modification
The above single pair of tooth stiffness algorithm is used to calculate the comprehensive meshing stiffness of helical gears with […]
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Study on calculation method of helical gear friction excitation
For helical gear system, generally, the total coincidence degree is greater than 2, that is, at least two tooth pairs […]
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Cutting test of equal height spiral bevel gear
According to the cutting parameters of equal height spiral bevel gear determined by simulation and the inclined angle of cutter […]
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Cutting simulation of equal height spiral bevel gear
① Import the cutter bar and gear blank models established in UG into advancededge software according to the actual machining […]
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Cutter path in cutting simulation of equal height spiral bevel gear
The cutting path of contour spiral bevel gear with extended epicycloid cannot be fully simulated in advantageedge software. The actual […]
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Manufacture and assembly of mould for spur gear
The process experiment mold design refers to the mold structure of the finite element model and the main size parameters […]
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Establishment of geometric model for cutting simulation of equal height spiral bevel gear
The cutting process of equal height spiral bevel gear with different cutting parameters is simulated, then the cutting force and […]
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Influence of different shaping parameters on the accuracy of spur gears
The sizing belt of shaping die is one of the important process parameters affecting the forming accuracy of spur gear. […]
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Cold shaping process analysis and preliminary determination of shaping amount of spur gear for truck
1. Analysis of cold shaping process scheme The cold extrusion die after multi-objective optimization is used for production, and the […]
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Influence of addendum fillet r on spur gear forming
In order to study the influence law of tooth top fillet r on the forming of spur cylindrical gear, the […]
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Cutting path equation of equal height spiral bevel gear
The tooth surface hobbing method is adopted for the processing of equal height spiral bevel gear, that is, while the […]
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Die angle α Influence on the forming of spur gear
The die angle is one of the important process parameters in the design of tooth concave die. It is not […]
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Numerical simulation results of spur gears
The correctness of the finite element model needs to be compared with the actual situation. If the simulation results are […]
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Countermeasures for technical difficulties in gear cutting
1.Synchronous phase locking Synchronous phase locking is a method of frequency capture in the field of communication, in order to […]
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Meshing performance of Hypoid Gear Considering installation error
In engineering application, due to machining error, installation error and support deformation, the meshing position of hypoid gear pair can […]
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Establishment of finite element model of spur gear
Cold extrusion process is a complex elastic-plastic deformation process with many influencing factors. Die shape, material properties, lubricant selection and […]
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Original forming technology of spur gear
Large module gear in power transmission of heavy industry (m ≥ 3) is essential. With the rapid development of heavy […]
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Calculation example of tooth contact of cycloid hypoid gear based on installation error
The mathematical model of hypoid gear with split cutter face rolling cutting method is established. The three-dimensional model of small […]
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Tooth surface contact analysis of hypoid gear
Figure 1 shows the gear pair meshing coordinate system, S1 and S2 are the dynamic coordinate system of small wheel […]
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Precision forming technology of large modulus and large specification spur gear
With the rapid development of automobile industry, precision forming of spur gear has become an inevitable trend in the development […]
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Tooth surface equation of hypoid gear
In the process of generating, the wheel blank and the forming wheel are hobbed to form a cycloid hypoid gear. […]
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Finite element calculation model of meshing stiffness of spiral bevel gear
The stiffness calculation of spiral bevel gear requires the comprehensive elastic deformation UN of contact force FN and contact position. […]
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Equation of hypoid gear face hobbing cutter
According to the cyclo palloid method, the gear is processed with a multi head cutter head. The cutter head adopts […]
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Kinematic die for strong tooth scraping of cylindrical gear
Kinematic model of strong tooth scraping take spur gear as an example. The kinematic model of strong tooth scraping is […]
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Loaded meshing stiffness of hypoid gear
Then, the contact analysis of the gear under loading is carried out. The resistance moment applied at the output end […]
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Meshing assembly and motion simulation of helical cylindrical gear
Using the parametric design of helical gear in Chapter 2, a helical gear with the same modulus as helical cylindrical […]
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Transmission error of hypoid gear under small load
According to the gear meshing stiffness calculation model, before calculating the gear meshing stiffness under loading, the transmission error of […]
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Parametric modeling of helical cylindrical gears
Before the meshing motion simulation of helical gear, the involute helical cylindrical gear is created first. According to the involute […]
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Realization of helical gear hobbing
When hobbing helical gear, first check the correctness of fixture installation, the accuracy of tool setting and the adjustment of […]
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Establishment of finite element model of hypoid gear
The established three-dimensional model of hypoid gear is saved in *. STP format and imported into the software HyperMesh for […]
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Structural parameters of helical gear hob
(1) Outer diameter of helical gear hob The outer diameter of helical gear hob not only affects the stability of […]
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Verification of meshing stiffness model of hypoid gear
The spur gear is selected as the object to verify the model. This is mainly because the current spur gear […]
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Selection of basic worm of helical gear hob
Helical gear hob is one of the most widely used high-efficiency tools. Gears with any number of teeth with the […]
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Time varying meshing stiffness of hypoid gear of automobile drive axle
The previous gear meshing model is based on empirical design formula or gear geometric meshing analysis. With the improvement of […]
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Hobbing principle of helical gear
Gear hobbing belongs to the generating method, and its principle is equivalent to the meshing transmission of a pair of […]
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Influence of hypoid gear torque on time-varying meshing parameters
1. Effect of torque on coincidence degree Calculate the large wheel torque as 1000 n respectively · m、2 000 N […]
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Tooth surface equation of helical gear
Before deriving the equation of helical gear, the meshing equation is obtained first. The process of machining helical gear is […]
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Establishment of meshing coordinate system of helical gear
When the generating method is used to process helical gear, the main parameters are determined first: the rotation direction of […]
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Time varying equivalent meshing parameters of hypoid gears
The meshing position, meshing force, action direction and meshing stiffness of hypoid gear all change with time period. In the […]
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Error coupling compensation principle of herringbone gear
Due to the limitation of manufacturing difficulty and production cost, it is difficult to improve the transmission stability by improving […]
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Finite element model of hypoid gear
Relevant parameters of hypoid gear. It is defined that the axis of the small wheel is parallel to the x-axis […]
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Detection and error compensation technology of spiral bevel gear
With the development of bevel gear processing and detection technology, bevel gear tooth surface detection and error compensation feedback technology […]
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Time varying meshing characteristics of hypoid gears based on finite element method
In the dynamic modeling and analysis of hypoid gear system, the meshing relationship of hypoid gear is treated as spring […]
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Analysis on the influence of distortion of hypoid gear cutting compensation heat treatment
1. Cutter compensation heat treatment distortion The tooth profile of hypoid gear is complex, which has the problems of difficult […]
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Experiment on influence of relative tooth surface error on contact area of hypoid gear after heat treatment
1. Test purpose In order to more clearly understand the influence of the relative helix angle error of the driving […]
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Analysis method of gear heat treatment contact zone offset
The tooth surface error caused by gear heat treatment distortion is the main reason for the offset of gear contact […]