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A space-borne locking and releasing device driven by memory alloy

A technology of memory alloy, lock and release, which is applied in docking devices of aerospace vehicles, motor vehicles, transportation and packaging, etc. It can solve the problems of large impact and sensitivity of detonation and unlocking, and achieves small release impact, high reliability and load bearing powerful effect

Active Publication Date: 2018-05-01
XIAN INSTITUE OF SPACE RADIO TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] Coarse pointing mechanism (CPA) is an important part of the laser terminal system. In order to adapt to the mechanical environment conditions of the satellite launch process, it is necessary to use a locking release device to lock the moving parts of the CPA, and unlock and release them as required after entering orbit. ;Because the optical antenna and other precision components installed by CPA are sensitive to impact, the existing pyrotechnic unlocking scheme is mature in technology, but there is a limitation of large impact of detonation and unlocking, so the lock release mechanism should consider adopting a non-electric explosion unlocking scheme

Method used

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  • A space-borne locking and releasing device driven by memory alloy
  • A space-borne locking and releasing device driven by memory alloy
  • A space-borne locking and releasing device driven by memory alloy

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Embodiment Construction

[0029] The present invention will be described in detail below in conjunction with the accompanying drawings.

[0030] Such as figure 1 , figure 2 As shown, an on-board locking and releasing device driven by a memory alloy includes a split nut 7, a pressure steel ball 8, a cage 9, a first compression spring 13, a retaining spring 1, a housing 11, an upper cover 12 and a separation Rod 10, the housing 11 connected to the separated part 3 is a hollow structure, and its bottom surface has a hole that does not interfere with the separation rod 10; the cage 9 placed in the housing 11 is a hollow structure, such as Figure 4 As shown, a boss is provided on its outer wall circumferentially, and the side wall of the boss does not rotate relative to the inner wall of the housing 11; the inner wall of the cage 9 is provided with a hemispherical retaining groove, at least two retaining grooves, and the pressure-bearing steel ball 8 Placed in the holding groove and can be exposed; the ...

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PUM

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Abstract

The invention discloses a memory alloy driven satellite-bone locking and releasing device. The memory alloy driven satellite-bone locking and releasing device comprises a segmented nut, a pressure-bearing steel ball, a retainer, a first compression spring, a clamping spring, a shell, an upper cover and a separation rod; after the diameter of the clamping spring is increased, the clamping spring slides off along a lug boss of the retainer; the retainer is jacked upwards under the action of the first compression spring, so as to drive the pressure-bearing steel ball to move upwards along a first rolling groove until the pressure-bearing steel ball falls into a second rolling groove; the segmented nut is released from limitation and then is expanded outward; a second compression spring drives the separation rod to be downward popped up. The memory alloy driven satellite-bone locking and releasing device has the advantages of small size, light weight, strong bearing capability, small released impact, high reliability, simplicity in secondary assembling, capability of being repeatedly utilized and the like, and has wide applicability and popularization and application values.

Description

technical field [0001] The invention relates to a space-borne locking and releasing device driven by a memory alloy, in particular to a low-impact and high-reliability locking and releasing device for a space-borne optical antenna and other precision components. Background technique [0002] Coarse pointing mechanism (CPA) is an important part of the laser terminal system. In order to adapt to the mechanical environment conditions of the satellite launch process, it is necessary to use a locking release device to lock the moving parts of the CPA, and unlock and release them as required after entering orbit. ;Because the optical antenna and other precision components installed by CPA are sensitive to impact, the existing pyrotechnic unlocking scheme is mature in technology, but there is a limitation of large impact of detonation and unlocking, so the lock release mechanism should consider adopting a non-electric explosion unlocking scheme . Contents of the invention [000...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B64G1/64
CPCB64G1/646
Inventor 王伟史明张文会
Owner XIAN INSTITUE OF SPACE RADIO TECH
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