An L-shaped resistance arm vibration isolator without resonance peak and its damping module

Abstract

The invention discloses a resonance-peak-free vibration isolator of an L-shaped resistance arm, and a damping module of the resonance-peak-free vibration isolator. The resonance-peak-free vibration isolator consists of a vibration damping module, the damping module and a connection module, wherein the vibration damping module comprises a hollow internal thread hexagon bolt, an internal thread sleeve and a main spring; the damping module comprises a waist-drum-shaped damping sleeve, a first L-shaped damper, a second L-shaped damper and a damping module buffering spring; and the connection module comprises an upper end cap, a fastening pressure plate, a lower cover cap with a cylindrical bulge, and a base. The damping module disclosed by the invention is simple in implementation structure. When the vibration isolator vertically vibrates, the two L-shaped dampers in the damping module are respectively in contact with two concave ports, so that stable damping force in vertical and horizontal directions can be provided, good centering and resetting effects on transverse vibration can be realized, and the resonance inhibiting effect is good. The damping module disclosed by the invention is simple in implementation structure, and has a good inhibiting effect on transverse resonance and longitudinal resonance.

Description

technical field [0001] The invention relates to the technical field of vibration isolators, in particular to an L-shaped resistance arm vibration isolator without a resonance peak and a damping module thereof. Background technique [0002] The non-resonant peak vibration isolator can effectively suppress resonance, realize no amplification in the resonance area, and avoid damage, electrical performance degradation and failure of electronic equipment in the resonance area. The damage caused, especially military electronic equipment, is prone to damage and failure once it is subjected to a strong impact, making weapons and equipment lose their combat effectiveness. The ship is out of combat. [0003] At present, military electronic equipment often adopts a modular shock-resistant peak-free vibration isolator. The technology of this peak-free vibration isolator has been disclosed in the patent document CN03131862.2. The resonator is divided into a damping spring module, a dam...

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Problems solved by technology

[0003] At present, military electronic equipment often adopts a modular shock-resistant peak-free vibration isolator. The technology of this peak-free vibration isolator has been disclosed in the patent document CN03131862.2. The resonator is divided into a damping spring module, a damper module, and a connection mechanism module. This modular shock-resistant peakless resonator can effectively suppress resonance and achieve a certain buffer performance, but this resonance suppression and buffering mainly depend on Due to the spring piece, in the actual use process, the spring piece is prone to permanent deformation under the strong impact force of the vibration isolator, which leads to the failure of the damper module and becomes a non-damping state. Only the vibration damping spring module can play an effective role. The support has lost the original function of no resonance peak and strong impact resistance, and the structure of this non-resonance peak vibration isolator is complex, and the installation of the spring piece in the non-damping module is troublesome, and the entire non-resonance peak vibration isolator is installed or assembled. The process is more cumbersome, and the replacement parts will also cause inconvenience

[0004] The ZL201520039978.9 patent in the prior art provides an improved non-resonant peak anti-strong impact vibration isolator for the above technologies. This non-resonant peak anti-strong impact vibration isolator has been improved for the damper. A resonance suppression structure for suppressing the resonance of the vibration isolator is formed in the seating cavity of the mounting seat, which can solve the problem of the failure of the damper module in the CN03131862. It is cumbersome and the installation process is complicated, and the resonance suppression structure uses a single damping friction ring to cooperate with the damping pressure ring. The entire damping effect and the cooperation of the damping friction ring and the damping pressure ring will cause excessive wear under strong impact, affecting Damping effect At the same time, the rigidity of the damping support for suppressing lateral vibration is poor, the centering performance is not ideal, and the structure of the whole device is complicated, which leads to complicated maintenance and replacement process of each component

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