Spacecraft unlocking and separating device

Abstract

The invention relates to a spacecraft unlocking and separating device which is used in mechanical devices in the field of the aerospace industry. A device combination mainly comprises two structural parts namely separating hexagon bolts, wherein the two structural parts can move oppositely. The two structural parts which can move oppositely are solidified through a hot melt adhesive, and when the hot melt adhesive is melted by changing temperature, the two structural parts are separated. When the device serves as a connecting piece, the two structural parts are solidified through the hot melt adhesive, the connecting function is achieved in the mode similar to the connecting mode of a common bolt or a common stud, and two objects can be connected into a whole through screwing up a nut or a bolt body. When the two connected bodies are to be separated, the set temperature reaches the melting temperature of the hot melt adhesive, so that the two structural parts of the device break away, and then the two objects are separated rapidly under the action of a spring. According to the spacecraft unlocking and separating device, an electrical heating mode is adopted for melting the hot melt adhesive to unlock the two connected parts, and negative influence on a spacecraft caused by dynamic impact generated in the unlocking process is effectively avoided.

Description

technical field [0001] The present invention belongs to the field of controlled release mechanism, especially (but not exclusively) to the field of temperature mechanism, that is to say, the field of mechanism controlled by the action of temperature. [0002] The invention is non-exclusively applicable to the field of aerospace industry, such as the field of launch vehicles or satellites. Background technique [0003] The connection and separation between the spacecraft cabin and components is one of the most critical factors related to the success of the spacecraft flight test. During the entire flight phase of some spacecraft, such as ascent, flight along the earth orbit or flight to other planets, and when returning to the earth, it is necessary to continuously separate the invalid structural parts. Therefore, in the spacecraft design process, the correct selection Unlockable connection and disconnection devices are very important. [0004] At present, among spacecraft ...

AI Technical Summary

Problems solved by technology

[0004] At present, among spacecraft unlockable connection and separation devices, such as explosive bolts, unlocking bolts and other devices, the separation force is generated by the combustion of gunpowder, which has a certain dynamic impact force when unlocking; while half-nut connection locks, double-rack connection locks, etc. The structure of the device is complex, the processing is difficult, the processing accuracy is high, and the installation and operation are high

[0005] in fact shock and vibration levels can adversely affect spacecraft, often creating serious obstacles to the use of less robust equipment in their vicinity

[0006] In the patent (Patent No. 01808551.2), a controlled release device used in the aerospace field is mentioned, which can reduce the dynamic impact force when unlocking, but the structure of the device is complicated, which greatly limits its scope of use

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