Satellite-rocket separation unlocking driving device

Abstract

The invention discloses a satellite-rocket separation unlocking driving device, which comprises a device shell, an electrode device, an external power source, a sliding pin, an elastic device and a driving device; wherein one end of the device shell is provided with an electrode hole, and the other end of the device shell is provided with a sliding pin hole; an electrode fixing plate of the electrode device is arranged in the accommodating cavity, wherein one ends of a positive electrode and a negative electrode are fixedly connected with the electrode fixing plate respectively, and the other ends penetrate through the electrode holes respectively, are exposed out of the device shell and are connected with an external power supply; the sliding pin head of the sliding pin is perpendicular to the sliding pin body; the sliding pin head is arranged in the containing cavity, and the sliding pin body penetrates through the sliding pin hole; an elastic device is arranged between the sliding pin head and the electrode device; one end of a memory alloy wire of the driving device is arranged in the sliding sleeve, the other end connected with the electrode device is exposed out of the sliding sleeve, and a clamping protrusion of the sliding sleeve is located between the sliding pin head and the inner wall of the end, provided with the sliding pin hole, of the device shell. According to the method, the advantages of a pyrotechnic point type separation product and a non-pyrotechnic unlocking separation product are integrated.

Description

technical field [0001] The present application relates to the field of aerospace technology, and in particular to a drive device for separating and unlocking a star-rocket. Background technique [0002] The star-rocket separation and unlocking drive device is generally connected and unlocked by connecting the unlocking device, and the separation movement of the payload and the launch vehicle is realized by separating the energy device. Distinguished from the driving form, the unlocking drive device can be divided into a pyrotechnic separation device and a mechanical drive separation device. Among them, the pyrotechnic separation device has the advantages of high energy density, convenient use and maintenance, fast unlocking speed, and high working reliability, but its disadvantages are poor tolerance to complex electromagnetic environments, high impact environment caused by gunpowder or explosive detonation, The unlocking impulse is large, which has an unpredictable impact ...

AI Technical Summary

Problems solved by technology

[0003] At present, in addition to pyrotechnic unlocking, there are also non-pyrotechnic unlocking devices on the market. Non-pyrotechnic devices have the advantage of avoiding the explosive impact of gunpowder and explosives during the unlocking process, but their shortcomings are also obvious. Most of them have complex structures and large volumes. , It consumes the payload of the rocket, and at the same time lacks the characteristics of pyrotechnic unlocking, high energy density, convenient use and maintenance, fast unlocking speed, and high working reliability

For example, the patent with application number 201811057817.7 uses a fastening rope, a hot knife and two locking and releasing parts, which has a large and complex structure and low reliability

[0004] At present, there is still a lack of a star-arrow separation unlocking drive device that combines the advantages of pyrotechnic unlocking and non-pyrotechnic unlocking on the market.

Images