Metal rubber combined elastic vibration reducing primary spring for axle box

Abstract

The invention relates to a metal rubber combined elastic vibration reducing primary spring for an axle box. The spring comprises a top plate and a base, wherein a composite rubber metal spring formed by combining three metal rubber combined elastic vibration reducing pieces is sandwiched between the top plate and the base; in the three metal rubber combined elastic vibration reducing pieces of the composite rubber metal spring, two metal rubber combined elastic vibration reducing pieces are round rubber piles, and the other metal rubber combined elastic vibration reducing piece is a square rubber pile; the two round rubber piles are vertically arranged on the two sides of an iron piece on the lower part of a mandrel connected with the top plate; the square rubber pile is arranged between the bottom surface of the lower part of the mandrel and the base; and the composite structure rubber metal spring which can bear loads in Fz, Fx and Fy directions simultaneously is formed by combiningthe two round rubber piles and the square rubber pile. The three metal rubber combined elastic vibration reducing pieces are arranged at different positions, and rubber has a good function of slowingdown the disappearance of vibration, so that the spring has high vibration reducing property.

Description

technical field [0001] The invention relates to a structure of vibration damping components of a vehicle, in particular to a primary vibration damping spring of a rail vehicle bogie, which is mainly used for the primary vibration damping of a vehicle bogie, and provides flexible support and positioning for the frame vertically and laterally , and transmit traction and braking forces during operation. technical background [0002] The primary spring suspension is an important damping device of the vehicle. The so-called "primary system" generally refers to the vibration of the vehicle body only passing through the spring vibration damping device once (in the three-dimensional direction of space) for vibration reduction. The device is located between the frame and the wheel pair axle box; the damping springs installed on both sides of the axle box or on the axle box are also called a series of damping axle box springs. The primary spring on the rail vehicle bogie is set up to...

AI Technical Summary

Problems solved by technology

However, it is difficult for the current rubber-metal axle box springs to match a large range of three-way stiffness, and it is also difficult to adjust the stiffness in a wide range according to the vehicle operation requirements. If the existing axle box springs can be adjusted in a wide range of stiffness, it will make The whole system is more complex

In addition, the traditional one-series spring cannot provide the function of horizontal and vertical limit. When the vehicle needs horizontal and vertical limit, only the horizontal and vertical stoppers are installed on the frame, which not only increases the number of components but also complicates the installation.

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