Calculation of joint lamination coupling lamination stiffness!

Laminated coupling is a kind of all-metal flexible coupling, which transmits the torque between the main and slave moving axes through the elastic element - diaphragm assembly, and compensates the axial, radial and angular deviation between the two axes of the unit due to the manufacturing installation error, deformation after load and temperature change through the three-dimensional deformation of the diaphragm assembly. Therefore, the diaphragm assembly is the key component of the laminated coupling. Its performance index determines the working performance of the whole coupling.

Stiffness (flexibility) performance directly reflects the ability of the diaphragm to compensate for various kinds of offset, and is the main research factor of the diaphragm. There are two main theoretical methods to study the stiffness properties of the diaphragm: analytical method and finite element method. The stiffness calculation formula of flexible element of diaphragm coupling is derived by mechanical method. The paper presents the calculation method of flexural stiffness of Marine diaphragm coupling and the calculation method of torsional stiffness of high-power diaphragm coupling respectively by using Ansys.

This paper takes the joint laminated coupling as an example to discuss the stiffness calculation of the joint laminated coupling. According to the load on the joint laminated coupling, the formulas for calculating the torsional stiffness, axial stiffness and radial stiffness of the ordinary laminated coupling and the joint laminated coupling are respectively given and compared. Matlab software is used to calculate and analyze the influence of joint bearing on the stiffness of laminated coupling.

In this paper, the stiffness characteristics of joint bearing laminated coupling and joint bearing coupling are analyzed. The torsional stiffness, axial stiffness and radial stiffness of the two are deduced, and the obtained results are compared and summarized. Through the above analysis, the following conclusions can be drawn:

1) The torsional stiffness and axial stiffness of the jointless bearing laminated coupling and the bearing laminated coupling with relevant joint are the same, and the axial stiffness of the laminated coupling changes with the change of axial deviation, and is not a fixed value.

2) The radial stiffness of the joint bearing type laminated coupling is much smaller than that of the ordinary laminated coupling, which is also the main feature of the joint coupling, that is, to allow large radial errors. Cold extrusion forming and die design based on finite element simulation Cold extrusion is a very advanced green processing technology, which is very suitable for the blank rod processing of transmission parts. According to the technical characteristics of the parts of the flower sleeve, two kinds of extrusion schemes are determined and the extrusion die is designed. Based on the numerical simulation, the forming process of the part was analyzed, and the numerical simulation results of the forming scheme were obtained and compared with the test to prove the correctness of the simulation.