V-shaped rubber stack component, stiffness design method and application

Abstract

The invention discloses a V-shaped rubber stack component. The component comprises a horizontally arranged mounting plate, and two rubber stacks bonded on the mounting plate in a vulcanized manner, wherein each rubber stack comprises a rubber layer, a baffle laminated with the rubber layer, and an outer layer plate arranged in the outmost layer; the rubber layer, the baffle and the outer layer plate are bonded into a whole in a vulcanized manner; the two rubber stacks are symmetrically arranged on the upper and lower layers of the rubber plate and bonded to the middle of the mounting plate; the rubber stack is inclined to the longitudinal direction of a product; the two rubber stacks form V shape distribution with an included angle being alpha; and the angle alpha is greater than 120 degrees and smaller than 180 degrees. The V-shaped rubber stack component is high in vertical and lateral stiffness, low in lateral and longitudinal rotational stiffness, and suitable for the stiffness requirements during suspension and bearing processes, improves the vibration reducing to suspended pieces, is high in vibration reducing reliability, meets the requirements on vibration reducing and moving adaptability of gear cases, motors and engines, saves mounting space, is convenient for mounting and maintenance, and low in cost. The invention further provides a stiffness design method and the application of the V-shaped rubber stack component.

Description

technical field [0001] The invention relates to a V-shaped rubber stack assembly, which belongs to the technical field of vibration-damping suspension structures for rail vehicles. The invention also relates to a stiffness design method and application of the V-shaped rubber stack assembly. Background technique [0002] Rail vehicles are generally driven by locomotives or bullet trains on two parallel tracks. In order to ensure the safe operation of the vehicles, the running part, that is, the bogie, is required to move the vehicle along the track through the rotation of the wheel set. One of the core structures of the bogie is Suspension damping device, suspension damping device has a decisive influence on the stability and safety of the vehicle at high speed. The boom joint suspension part (metal boom + ball hinge) is a commonly used suspension vibration reduction device, which is a rubber-metal composite vibration reduction and connection element. The components are susp...

AI Technical Summary

Problems solved by technology

[0004] 1. If figure 1 The articulated suspension parts of the suspender shown are composed of a metal suspender and a ball joint press-fitted at both ends of the metal suspender. It is cumbersome, which makes the assembly efficiency of the boom articulated suspension parts low, the installation is difficult, and the installation space requirements are high

[0005] 2. By adjusting the stiffness of the ball joint, it can adapt to the stiffness requirements in all directions during the load-bearing process, and the stiffness of the ball joint is determined by the rubber layer in the ball joint. After the ball joint is pressed into the end of the boom, the rubber layer is limited , causing the deflection and torsional rigidity of the ball joint to be large, which is not conducive to the deflection and torsional deformation of the ball joint during the movement, and it is difficult to meet the stiffness requirements of the deflection, torsion, vertical, longitudinal and transverse directions

[0006] 3. The structure cost of the combination of boom and spherical hinge is high, and the production and maintenance costs are high

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