THE METHODS OF CALCULATIONS THE NOW STRUCTURES OF CONNECTION OF CHANGING HARDNESS

Abstract

The method of calculation of details of the new structure of the connection of the variable rigidity is developed. The rational parameters of the details are defined in depending on the size of the load, materials, technological and operational conditions. Application of the joints of the rigidity variable in cars will allow to increase reliability and reliability the comfort of transports, and vibration machines – vibration resistance. It is recommended to use this design of the connection of variable rigidity in vehicles operated in difficult conditions (off-road driving - construction, land reclamation and mining machines).The article deals with the detailed description of the structure and theprinciple of the new design of the connection of the variable rigidity.Method of calculation on the strength of the parts is carried out in stages: we install the power the ratio between the details; determine the geometric characteristics of the sections; we calculate the stresses in the characteristic cross-sections; we draw a conclusion about the strength of the part.Analysis of the connection shows that the transfer of motion from the shaft to the sleeves occurs in the case of compression, so in the groove and on the supporting surfaces of the sleeve, the forces of resistance are due to the friction between the movable by the parts of the parts and the elastic forces of the sleeve.Installed dependencies for determining moments of driving forces,  moments in the groove and friction on the supporting surfaces of the  parts. The axial force that provides the transmission of the torque between the connection discs is determined.Considered the redistribution of torque between the connection details: sleeves-tubes, based on the assumption that the angles of twisting of the named parts at the point of the disk are the same.The geometric characteristic of the section of the tube is calculated: the moment of inertia relative to the main axis. Defined internal forces in cross-section and maximum stresses and, on the basis of comparison of them with permissible, made a conclusion about the strength of the parts.In the list of references you can find information about others types of new structures of connections of variable rigidity (structure, principle of work, methods of calculations).