A Fully Enclosed Low-Frequency Shock-Resistant Bottom Vibration Isolator

Abstract

The invention relates to a totally-enclosed low-frequency impact-resistant bottom vibration isolator. The vibration isolator comprises a mandrel, an elastic middle body and a base, wherein the elasticmiddle body is made of a rubber material, a first annular groove is formed in one end of the elastic middle body, and a second annular groove is formed in the other end of the elastic middle body; one end of the mandrel is arranged in the elastic middle body in a penetrating mode, the other end of the mandrel is arranged in the first annular groove in a clamped mode, and one end of the base is arranged in the second annular groove in an inserted mode; a vibration isolation cavity is formed inside the elastic middle body, a damping assembly used for vibration isolation is arranged in the vibration isolation cavity, and the damping assembly is arranged at the end, arranged in the elastic middle body in a penetrating mode, of the mandrel in a sleeved mode and connected with the mandrel; anda bottom elastic body is further arranged on the side, far away from the elastic middle body, of the base, the end, far away from the elastic middle body, of the base is further connected with a sealing cover used for fixing the bottom elastic body, and the mandrel, the elastic middle body and the base are fixed through vulcanization treatment. The totally-enclosed low-frequency impact-resistant bottom vibration isolator has a good impact buffering and vibration isolation effect.

Description

technical field [0001] The invention relates to the technical field of vibration isolators, in particular to a fully enclosed low-frequency shock-resistant bottom vibration isolator. Background technique [0002] Vibration isolators can effectively avoid damage to electronic equipment caused by strong impact environments, especially military electronic equipment, once subjected to strong impacts, are prone to damage and failure, making weapons and equipment lose their combat effectiveness. For example, the explosion shock waves of anti-ship missiles, underwater torpedoes and other weapons will cause damage to the electronic equipment on the ship, making the ship lose its combat effectiveness. [0003] The existing notification number is: CN204512269U Chinese patent discloses a non-resonant peak anti-strong impact vibration isolator, including a mounting seat, and a main shaft that can move up and down is arranged in the seat cavity of the mounting seat. A damper is provided...

AI Technical Summary

Problems solved by technology

[0004] In the above-mentioned existing technical solutions, since the damper is used in the vibration isolator to resist impact, the damper actually uses a damping spring, and there is a large gap between the longitudinal stiffness of the damping spring and the transverse stiffness, which will make the overall vibration isolator The stiffness in the three directions is inconsistent, which will reduce the overall buffering and vibration isolation effect, so that it cannot achieve a good impact resistance effect and cause damage to the vibration isolator

Images