A deployable extraterrestrial celestial body penetration limiting device

Abstract

The invention discloses an expandable extraterrestrial celestial body penetration limiting device, which comprises six retractable and unfoldable limiting units evenly distributed on the impactor separation barrel, a separation barrel and 12 tightening elements outside the barrel. Coil spring and 12 explosive bolts; each limiting unit includes a limiting inner plate and a reinforcing rib on the plate, and a long key is provided on the short side of the reinforcing rib; the arc of the limiting inner plate and the separation barrel Similarly, in the unexpanded state, the limit inner plate is seamlessly attached to the separation barrel and fastened to a certain extent with explosive bolts, and the end of the limit inner plate and the separation barrel are hinged by coil springs. When unfolding, the explosive bolt is disconnected, the key is inserted into the keyway of the separation barrel, and the coil spring is still in a tensioned state, realizing the self-locking when the device is unfolded. The device can withstand the huge impact of the impact, and can effectively realize the separation barrel to stay on the surface of the celestial body, and play the function of penetrating and limiting.

Description

technical field [0001] The invention relates to a deployable extraterrestrial celestial body penetration limiting device. Background technique [0002] Deep space impact detection is an efficient means to realize the detection of the interior of extraterrestrial celestial bodies. In order to ensure that the impactor can still absorb solar energy normally after penetrating into the target body to a certain penetration depth to ensure the normal operation of the instrument and meet the requirements of antenna transmission and reception, it is necessary to restrict the corresponding compartment of the impactor so that The energy harvesting device and the transmitting and receiving antenna stay on the outer surface of the celestial body. The impact speed of extraterrestrial celestial bodies ranges from hundreds of meters per second to several kilometers per second, and the impact overload will reach 104 ~ 105g. In order to ensure that the limit device can effectively limit the ...

AI Technical Summary

Problems solved by technology

Therefore, it is required to design the configuration of the limit device of the impactor, and to select the material of the device reasonably to ensure that the limit device will not be damaged and lose the limit effect during impact.

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