Metal rubber laminated vibration isolator and method of manufacturing the same

By designing alternating layers of rubber with varying thickness and metal plates in the metal-rubber laminated vibration isolator, the pressure near the free surface and the central area of ​​the rubber layer is basically the same, which solves the problem of uneven stress and improves the load-bearing capacity and durability of the vibration isolator.

CN122407710APending Publication Date: 2026-07-17GENERAL ENG RES INST CHINA ACAD OF ENG PHYSICS

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
GENERAL ENG RES INST CHINA ACAD OF ENG PHYSICS
Filing Date
2026-06-02
Publication Date
2026-07-17

AI Technical Summary

Technical Problem

The existing metal-laminated rubber vibration isolators have the highest stress in the central area and uneven internal stress distribution, which makes the rubber layer prone to fatigue, thermal aging, and performance failure under long-term vibration.

Method used

A metal-rubber laminated vibration isolator is designed, wherein the thickness of the rubber layer in the central region is less than that in the edge region before molding. The rubber layers are alternately laminated and fixedly connected to a metal plate to form a flat plate structure. The metal plate is vulcanized by applying pressure to an arc surface mold and then welded to ensure that the pressure near the free surface of the rubber layer and the central region are basically the same.

Benefits of technology

This method achieves uniform stress distribution within the metal-laminated rubber vibration isolator, fully utilizes the compressive strength of the rubber layer, improves load-bearing capacity, and avoids fatigue and thermal aging issues in the central area.

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Abstract

本发明涉及隔振器技术领域,具体涉及一种金属橡胶叠层隔振器及其制备方法。隔振器包括:第一外侧金属板;夹层金属板;第一橡胶层,夹设在所述第一外侧金属板和所述夹层金属板之间,同时与所述第一外侧金属板和所述夹层金属板固定连接,且在成型前中部区域的厚度小于边缘区域的厚度;第二外侧金属板;第二橡胶层,夹设在所述第二外侧金属板和所述夹层金属板之间,同时与所述第二外侧金属板和所述夹层金属板固定连接,且在成型前中部区域的厚度小于边缘区域的厚度;其中,在成型后,所述第一外侧金属板、所述夹层金属板和所述第二外侧金属板均为等厚的平板结构,能够充分发挥出所有橡胶层的承压能力。制备方法用于制备前述的隔振器。
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