A Nonlinear Variable Stiffness Adjustment Rubber Metal Ball Joint

Abstract

The invention discloses a nonlinear variable rigidity-adjustable rubber metal spherical hinge. The rubber metal spherical hinge is composed of metal and rubber in a compounded mode, and comprises a spherical hinge outer sleeve and a spherical hinge inner sleeve; the rubber metal spherical hinge is characterized in that an axial variable rigidity adjusting device formed by compounding the rubber and the metal is arranged between the spherical hinge outer sleeve and the spherical hinge inner sleeve, and the nonlinear variable rigidity of the rubber metal composite spherical hinge is adjusted through the axial variable rigidity adjusting device formed by compounding the rubber and the metal. According to the nonlinear variable rigidity-adjustable rubber metal spherical hinge, the axial variable rigidity of the spherical hinge is adjusted, the idea that the nonlinear rigidity of traditional spherical hinge products is provided in the radial direction is completely changed, a new design idea is brought to the design idea of a bogie, the design concept of the bogie is greatly expanded, and the possibility of new bogie assembling structure is developed.

Description

technical field [0001] The invention relates to a variable stiffness device for rail vehicle components, in particular to a rubber-metal composite spherical hinge nonlinear variable stiffness adjustment device, the rubber-metal composite spherical hinge nonlinear variable stiffness adjustment device can realize ball joints Highly non-linear adjustment of the axial stiffness, or simultaneous nonlinear variable stiffness adjustment in the axial and radial directions, thus providing a new ball joint load-bearing installation method for bogie design, which is realized by axial non-linear variable stiffness adjustment The invention relates to variable stiffness adjustment of spherical joint bearing, 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 th...

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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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