Friction coefficient and meshing efficiency of spiral bevel gears
Spiral bevel gears are widely used in heavy load conditions such as helicopters, ships and automobiles. Their friction characteristics are […]
Spiral bevel gears are widely used in heavy load conditions such as helicopters, ships and automobiles. Their friction characteristics are […]
In order to measure the profile error of spiral bevel gear on machine, the spatial coordinates and normal vector parameters
Based on the gear meshing principle and the gear cutting principle of spiral bevel gear large wheel, the tooth surface
Combining the research of machine tool adjustment parameters with finite element analysis is of great significance to the research of
In intersecting shaft transmission, spiral bevel gear has the advantages of large bearing capacity, low noise and stable transmission. With
1. NC machining process principle of spiral bevel gear Spiral bevel gear is only a kind of gear transmission, and
The processing technology of spiral bevel gear is to first cut the gear surface, then select some reference points on
The dynamic transmission error of spiral bevel gear system is related not only to the mechanical and geometric properties of
The real tooth surface of large and small wheels is obtained by scanning measurement of spiral bevel gear tooth surface
The pre-processing of spiral bevel gear finite element analysis includes element selection, application of load boundary conditions and setting of
Processing principle of spiral bevel gear: the Simulation wheel is a processed spiral bevel gear, and the unified chuck is
Three finite element models of gear pairs are established on ABAQUS platform: theoretical tooth surface, only large wheel meshing surface
1. Mathematical model of transmission error Figure 1 shows the dynamic model of spiral bevel gear transmission system under elastic
Spiral bevel gear is a key part in the field of mechanical transmission, which transmits motion or power between intersecting
Equal height spiral bevel gear is widely used in automobile, aviation, aerospace and other fields because of its high transmission
According to the cutting parameters of equal height spiral bevel gear determined by simulation and the inclined angle of cutter
① Import the cutter bar and gear blank models established in UG into advancededge software according to the actual machining
The cutting path of contour spiral bevel gear with extended epicycloid cannot be fully simulated in advantageedge software. The actual
The cutting process of equal height spiral bevel gear with different cutting parameters is simulated, then the cutting force and
The tooth surface hobbing method is adopted for the processing of equal height spiral bevel gear, that is, while the
The pre-processing of spiral bevel gear finite element analysis includes the selection of elements, the setting of analysis types, the
The stiffness calculation of spiral bevel gear requires the comprehensive elastic deformation UN of contact force FN and contact position.
Stiffness excitation is one of the main excitation of gear meshing vibration. Determining the elastic deformation and meshing stiffness of
With the development of bevel gear processing and detection technology, bevel gear tooth surface detection and error compensation feedback technology
Because spiral bevel gear has the advantages of stable transmission, suitable for high-speed transmission, and very low noise and vibration,
The spiral bevel gear formed by precision forging has the advantages of reasonable streamline distribution, less material waste and high
The precision forging process of spiral bevel gear has high requirements for pre forming and forging process parameter design. Reasonable
The material deformation, physical field distribution and die elastic deformation of final forging process are analyzed. The shape and size
According to the process scheme of “blanking upsetting punching compound rolling preform final forging”, the rings rolled to the required
The final forging process ultimately determines the quality of forgings, so it is very important to optimize the final forging
In order to study the preform process in the forging process of spiral bevel gear, the thermal mechanical coupling finite
Taking the precision forging process of automobile driven spiral bevel gear as the research object, the metal dynamic law and
As a transmission part, gear has very strict requirements for dimensional accuracy. However, under the forming condition, the die will
In precision forging process, die technology is closely related to the performance, accuracy and processing mode of parts. The development
The workpiece processed by precision forming technology can meet the requirements of parts with little or no processing, so precision
The setting of finite element preprocessing is very important, which not only determines whether the spiral bevel gear can converge
With the continuous development of the world automobile industry, the machining technology of spiral bevel gear is also changing, and
Spiral bevel gear transmission mainly transmits the motion and power between vertical shafts, which requires the existence of bevel gear
Spiral bevel gear is mainly used in high-speed and heavy-duty staggered shaft transmission. The gear pair has compact structure and
Velocity field is a vector to measure the flow of material in the process of plastic deformation. Through the observation
Figure 1 shows the driven bevel gear of rear axle in 46910 / 37 commercial vehicle. It can be seen
The precision forging process of spiral bevel gear generally has some problems, such as difficult forming, difficult cavity filling, low
Driven spiral bevel gear plays an important role in automobile rear axle reducer and is an important part of reducer.
Through the load meshing analysis of spiral bevel gear and its simulation with computer, the following conclusions are obtained: 1)
Taking the number of large teeth of the gear pair as 47 and the number of small teeth as 33
At a certain moment of gear transmission, the locally conjugate tooth profile engages and transmits load. When more than two
It can be seen from the comparison of tooth surface contact area under no-load and load that there is a
In the process of gear transmission, the rotation angle of each tooth of the driven gear can be expressed as:
Taking the spiral bevel gear pair with 39 large teeth and 13 small teeth as an example, the shape of
When considering the deformation of gear teeth under load, the basic meshing equation shall be rewritten as: Δ r2、 Δ
Taking the spiral bevel gear pair with 47 big teeth and 33 small teeth as an example, when the meshing
Tooth contact analysis (TCA) is an advanced technology to simulate and analyze the tooth meshing process of gear pair by
According to the contact conditions of the contact points, the contact equation of the contact boundary contact point pair can
The finite element analysis model is very important for finite element calculation. The models and boundary conditions are different, and
The two elastic contact bodies Ω 1 and Ω 2 are separated into two independent objects. According to the elastic
Due to the limitation of computer conditions, in the early application of finite element method to study gear problems, only
Spiral bevel gear is point contact in theory. After bearing, the contact area becomes surface contact due to elastic deformation.
The actual contact part on the tooth surface of a pair of bevel gears under normal meshing operation conditions is
The cutting adjustment parameters of machine tool play an important role in the tooth contact of spiral bevel gear. How
Spiral bevel gear is point contact conjugate transmission. Under light load, the gear pair forms an elliptical contact area near