Optical remote sensor locking-unlocking and damping vibration-isolating integrated structure

Abstract

The invention discloses an optical remote sensor locking-unlocking and damping vibration-isolating integrated structure. The optical remote sensor locking-unlocking and damping vibration-isolating integrated structure comprises an inner rod, an outer rod, a limiting block, a damping rubber ring, a locking-unlocking device, a wedge block, a through bolt, a spring, and a pressing block. Each of theinner rod and the outer rod is a hollow thin-wall cylinder-type structure. The inner rod is internally installed in a cavity of the outer rod. The limiting block passes through the inner rod, and is extruded and installed on the outer rod through the wedge block. A cylindrical cooperating surface of the inner rod and the outer rod is provided with two annular grooves. After a whole structure is completely assembled, damping glue is injected, and after curing the damping glue, the damping rubber ring is formed. The inner rod is rigidly connected with the outer rod through the locking-unlockingdevice, the through bolt, the spring and the pressing block. Compared with a traditional locking-unlocking vibration-isolating device, the structure is simple, small in occupied space and volume, light in weight, high in structure vibrating frequency, small in unlocking process impact, pollution-free, and good in damping vibration attenuation after unlocking.

Description

technical field [0001] The invention relates to an integrated structure of locking and unlocking, damping and vibration isolation of an optical remote sensor. Background technique [0002] The optical remote sensor is installed on the satellite platform through a damping vibration isolation structure. When launching, the damping vibration isolation structure needs to be locked to improve the rigidity of the remote sensor, and it needs to be unlocked during orbit operation to damp vibration isolation. At present, the commonly used optical remote sensor locking and unlocking devices are pyrotechnic unlocking or hot knife unlocking devices. The unlocking of pyrotechnics is composed of gunpowder, shear pins, structural parts, etc. It uses the gas generated by the explosion of the gunpowder to cut off the locking pin. When this solution is unlocked, the impact force is large and the vibration is obvious, and the gas generated during the explosion has a risk of leakage, which is e...

AI Technical Summary

Problems solved by technology

The unlocking of pyrotechnics is composed of gunpowder, shear pins, structural parts, etc. It uses the gas generated by the explosion of the gunpowder to cut off the locking pin. When this solution is unlocked, the impact force is large and the vibration is obvious, and the gas generated during the explosion has a risk of leakage, which is easy Damage to high-precision optical mirrors

The hot knife unlocking is composed of a metal blade, a separation nut, and a binding rope. After the metal blade is energized and heated, the temperature rises, carbonizes and cuts the rope binding the separation nut. The disadvantage of this solution is that the binding rope is easy to creep and elongate, resulting in Risk of locking device loosening

These two locking devices also have a common disadvantage that they have no damping performance and require additional damping devices to achieve vibration isolation

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