Resonance peak free vibration isolator and damping module thereof

Abstract

The invention discloses a resonance peak free vibration isolator and a damping module thereof. The resonance peak free vibration isolator comprises a vibration reduction module, the damping module and a connecting module. The vibration reduction module comprises a hollow hexagon bolt with an internal thread, an adjusting gasket, an internal thread sleeve and a main spring. The damping module comprises a drum type damping sleeve, first dampers and second dampers. The connecting module comprises an upper end cover, a lower end cover, a base and a middle cylinder. The lower end cover is provided with a cylinder type bulge. The drum type damping sleeve is fastened in the inner cavity of the vibration isolator through the hollow hexagon bolt and the adjusting gasket. The two ends of the main spring are respectively propped against the internal thread sleeve and the lower end cover with the cylinder type bulge. The damping module is simple in structure, the two dampers of the damping module are matched with the drum type damping sleeve to provide stable vertical and horizontal damping force, a good centering and resetting effect on horizontal vibration is achieved, and the resonance damping effect is strong.

Description

technical field [0001] The invention relates to the technical field of vibration isolators, in particular to a vibration isolator without a resonance peak and a combined structure of a double damping module. Background technique [0002] The non-resonant peak vibration isolator can effectively suppress resonance, realize no amplification in the resonance area, and can effectively prevent electronic equipment from being damaged in the resonance area in time, causing the performance of electronic equipment to decline or even fail. The vibration isolator with stable and reliable anti-strong impact can Effectively avoid damage to electronic equipment caused by impact environments, especially military electronic equipment in complex and diverse impact environments. Once they are subjected to strong impacts, they are easily damaged and invalidated, greatly weakening or even losing the combat effectiveness of weapons and equipment, such as anti-ship The strong explosion shock waves...

AI Technical Summary

Problems solved by technology

[0003] At present, military electronic equipment often adopts a modular shock-resistant peakless vibration isolator. The technology of this peakless vibration isolator has been disclosed in the patent document CN03131862.2. The vibration isolator is divided into a vibration damping spring module, a damper module, and a connection mechanism module. This modular shock-resistant peak-free vibration isolator suppresses resonance and can achieve a certain buffer performance, but this resonance suppression and buffering are mainly Relying on the spring sheet, in the actual use process, the spring sheet 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 small damping or no damping state. Only the vibration damping spring module It can play an effective supporting role, and loses the original function of no resonance peak and strong impact resistance, and the structure of this resonance-free peak vibration isolator is complicated, and the installation of the spring piece in the damper module is also troublesome, and the entire resonance-free peak isolation The installation or assembly process of the vibrator is cumbersome, which brings great inconvenience to the maintenance and replacement of vibration isolator parts

[0004] Patent No. ZL201520039978.9 in the prior art provides an improved non-resonant peak anti-strong impact vibration isolator for the above technologies. It mainly improves the damper, and is formed in the cavity of the mounting seat for The resonance suppression structure that suppresses the resonance of the vibration isolator can solve the problem of the failure of the damper module in the CN03131862.2 patent, but its overall structure is relatively complicated, which will inevitably lead to a relatively cumbersome processing technology and relatively high requirements for installation. It is not convenient to maintain and replace the spare parts. More importantly, the resonance suppression structure uses a single damping friction ring to cooperate with the damping pressure ring. The damping friction ring wears too much under strong impact force, which affects the damping effect and suppresses it. The rigidity of the damping support for lateral vibration is poor, and the performance of center return is not ideal, which affects the effect of lateral vibration isolation

Images