A method for adjusting nonlinear variable stiffness of rubber-metal composite spherical hinge

Abstract

Provided is a nonlinear variable rigidity method for a rubber and metal composite type spherical hinge. By adjusting the position relationship of a metal piece and a rubber piece of the rubber and metal composite type spherical hinge, the nonlinear variable rigidity of the rubber and metal composite type spherical hinge is adjusted; and according to the fact that by adjusting the position relationship of the metal piece and the rubber piece of the rubber and metal composite type spherical hinge, the nonlinear variable rigidity of the rubber and metal composite type spherical hinge is adjusted,by adjusting the axial variable rigidity of the rubber and metal composite type spherical hinge, the axial rigidity of the whole rubber and metal composite type spherical hinge is made to be in nonlinear changing, and the nonlinear variable rigidity of the rubber and metal composite type spherical hinge is adjusted by means of the nonlinear changing of the axial rigidity of the rubber and metal composite type spherical hinge. According to the nonlinear variable rigidity method for the rubber and metal composite type spherical hinge, by means of the axial variable rigidity adjustment on the spherical hinge, the thought that according to a traditional spherical hinge product, the nonlinear rigidity is provided in the radial direction is completely changed, a new designing thought is broughtfor the designing thought of a steering frame, the designing concept of the steering frame is greatly widened, and the assembling structure possibility of a new steering frame is exploited.

Description

technical field [0001] The invention relates to a method for variable stiffness of rail vehicle components, in particular to a method for adjusting nonlinear variable stiffness of rubber-metal composite ball joints. The method for adjusting non-linear variable stiffness of rubber-metal composite ball hinges can realize 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 the lo...

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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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