Dish-shaped rubber quasi-zero stiffness vibration isolator

Abstract

The invention relates to the field of low-frequency or ultralow-frequency vibration isolators, in particular to a dish-shaped rubber quasi-zero stiffness vibration isolator which aims at solving the problems that an existing quasi-zero stiffness vibration isolator is not compact in structure, low in bearing capacity and not capable of satisfying the requirement for the wide range of application. The dish-shaped rubber quasi-zero stiffness vibration isolator comprises a base, an upper cover and a bearing joint. Dish-shaped rubber is connected with the inner wall of the upper cover. The dish-shaped rubber is fixedly connected with the bearing joint and the upper cover so that an elastic element with negative stiffness can be formed. A reinforcing rib is arranged in the dish-shaped rubber. The bearing joint is connected with axial rubber with positive stiffness through a pressing cover. The axial rubber is connected to the base through an adjusting sleeve. Compared with the existing quasi-zero stiffness vibration isolator, the dish-shaped rubber quasi-zero stiffness vibration isolator has the advantages of being large in bearing capacity, small in size, light in weight and the like and serving as a passive vibration isolator with the small size, the dish-shaped rubber quasi-zero stiffness vibration isolator further has the advantages of being easy to maintain, strong in reliability and the like.

Description

technical field [0001] The invention relates to the field of low-frequency or ultra-low-frequency vibration isolators, in particular to a dish-shaped rubber quasi-zero-stiffness vibration isolator. Background technique [0002] Automobiles, ships, precision machine tools, and aerospace vehicles are very sensitive to vibration environments. Vibration can seriously affect the comfort of cars, the machining accuracy of machine tools, the stealth of ships, and even cause damage to aerospace vehicles. Therefore, vibration isolation technology, especially low frequency broadband vibration isolation technology has important application value. Existing vibration isolators include metal springs, hydraulic type, air springs, and wire rope vibration isolators. The vibration isolation effect of these vibration isolators in the low frequency range is not very ideal, and cannot meet the requirements of ultra-low frequency vibration isolation. [0003] After searching, the Chinese inven...

AI Technical Summary

Problems solved by technology

[0004] In order to solve the problem that the existing quasi-zero stiffness vibration isolators are not compact enough in structure, small in load capacity, and unable to meet a wide range of applications, the present invention provides a dish-shaped rubber quasi-zero stiffness vibration isolator

Images