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In order to solve the problem of easy damage to the traditional diaphragm set, a diaphragm with a patch is first designed based on the TRIZ theory.Coupling, And then use the CosmosWorks software to analyze the diaphragm set and patch of the traditional couplingDiaphragm couplingThe diaphragm set was analyzed.The research results show that the high stress area of the diaphragm appears near the hinge point on the diaphragm, and the low coefficient area also appears near the hinge point, which indicates that the area is prone to damage; under the same working conditions, after the patch is added to the diaphragm group, It can reduce the range of high stress areas and low coefficient areas in the diaphragm group, thereby improving the fatigue resistance of the diaphragm group.
Diaphragm couplingThe vulnerable part is the diaphragm assembly.The service life of the diaphragm assembly determines the service life and work efficiency of the coupling.There is a certain gap between domestically produced diaphragm couplings and foreign products in terms of appearance quality and service life.To this end, researchers have conducted research on diaphragm couplings[1-5], but some of the results are only theoretical research results, and no better solutions are proposed for the structure of the diaphragm assembly. Other results are only for certain Special structure diaphragms (such as circular diaphragms) are discussed, or only a single diaphragm is analyzed, and the conclusions drawn from this are not universal.From the actual damaged diaphragm group and theoretical analysis [1飊5], it can be seen that the damage of the diaphragm assembly mainly occurs near the hinge point of the diaphragm group.
This is because when there is angular displacement and axial displacement between the power machine and the working machine, the diaphragm group in the diaphragm coupling connecting the power machine and the working machine will generate additional stress.When the diaphragm coupling is in high-speed operation or repeated forward and reverse rotation, the diaphragm group is subjected to alternating stress, and fatigue damage is likely to occur.In order to specifically analyze the cause of the diaphragm group damage and extend the service life of the diaphragm coupling, take the waist-shaped diaphragm as an example, first determine the structure of the diaphragm group based on the TRIZ theory, and then use CosmosWorks to analyze the strength of the diaphragm group. The traditional diaphragm group and the patch diaphragm group are analyzed and compared.