Traction spherical hinge and method for adjusting nonlinear variable stiffness of traction spherical hinge

Abstract

The invention discloses a traction spherical hinge and a method for adjusting the nonlinear variable stiffness of the traction spherical hinge. Position relations between a metal component and a rubber component of the track traffic traction spherical hinge can be adjusted, so that the nonlinear variable stiffness of the track traffic traction spherical hinge can be adjusted. The traction spherical hinge and the method are characterized in that the adjustment on the nonlinear variable stiffness of the track traffic traction spherical hinge includes adjusting the radial variable stiffness and the axial variable stiffness of the track traffic traction spherical hinge, the radial variable stiffness and the axial variable stiffness of the track traffic traction spherical hinge can be adjusted,and accordingly the nonlinear variable stiffness of the integral track traffic traction spherical hinge can be adjusted. The traction spherical hinge and the method have the advantages that the axialvariable stiffness of the traction spherical hinge can be adjusted, ideas of radially providing nonlinear stiffness to the traditional spherical hinge products are completely changed, novel design ideas can be brought to design ideas for bogies, design philosophy for the bogies can be greatly expanded, and the possibility of novel bogie assembly structures can be developed.

Description

technical field [0001] The invention relates to a method and product for varying stiffness of rail vehicle components, in particular to a method for adjusting nonlinearly variable stiffness of traction ball joints of rail vehicles and a ball hinge, the method for adjusting nonlinearly variable stiffness of traction ball hinges and ball hinges The radial and axial rigidity height non-linear adjustment of the ball joint can be realized at the same time, thereby providing bogie design with the installation possibility of realizing the longitudinal bearing by the axial direction of the ball joint, which belongs to the technical field of rail vehicle manufacturing. Background technique [0002] The rubber-metal traction ball joint is a kind of rubber-metal composite ball joint, and it is also one of the key components for the transmission of traction and braking force between the locomotive body and the bogie. Most of the adjustments use rubber and metal composite parts. This rub...

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Problems solved by technology

[0008] Although some of the above-mentioned patents involve the nonlinear variable stiffness adjustment of rubber-metal composite spherical hinges, it can be seen from the descriptions of these patents that the variable stiffness of the existing rubber-metal spherical hinges still considers the radial variable stiffness. The patent number is CN200510031727.7, and the invention patent titled "A Method and Product for Axial Precompression of a Combined Ball Joint-type Rubber Elastic Component" proposes axial precompression, but the actual consideration and concern are still The adjustment of radial stiffness, so the disadvantages of simply considering the nonlinear adjustment of radial variable stiffness still exist, so it still needs to be further improved

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