Connection secondary locking device

A technology for secondary locking and locking of the shaft, applied in the aerospace field, can solve problems such as difficulty in re-locking, and achieve the effects of small release impact, large load, and improved work reliability and bearing capacity

Pending Publication Date: 2021-09-21
SHENYANG AEROSPACE XINGUANG GRP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The technical problem solved by the present invention is to provide a secondary locking device for connection with the characteristics of high reliability, large load capacity, high unlocking synchronization, and small size, so as to solve the problem that it is difficult to lock again after connection

Method used

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Embodiment Construction

[0023] The connection secondary locking device of the present invention has a high reliability, high load, unlock synchronization, and a small size, and the like can be used in the form of a plurality of connection locking systems. In order to make the objects, technical solutions and advantages of the present invention, the present invention will be described in further detail below. It will be appreciated that the specific embodiments described herein are intended to explain the present invention and is not intended to limit the invention.

[0024] The present invention is a secondary locking apparatus, and the operation principle of the present invention is to unlock the separation release connection screw 2 using a fire-separated nut 1, and the compressive rod 3 is moved upwards in the lock shaft spring 4 by the compressed state release. The steel ball B25 completes the unlocking, the lock shaft spring 4 pushes the lock shaft 22 to move the large lock block 5 and the socket 21...

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Abstract

The invention provides a connection secondary locking device and belongs to the technical field of aerospace. The whole device comprises an external structure body and an internal structure mounted in a cavity of the external structure body, wherein the external structure of the device comprises a lower shell, a supporting ring and a mounting seat, and the mounting seat is connected with a separation locking system; the lower shell is provided with an adapter which is connected with the body of the observation mechanism; according to an internal structure of the device, one end of a connecting screw rod is connected with a hot work separation nut through threads, the other end of the connecting screw rod is connected with the lower portion of a pressing rod, the pressing rod and a lock shaft are installed in a limiting mode, a lock block base is installed in a supporting ring, a large lock block is installed in a lock block base lock hole, a lower cylindrical section of the lock shaft is sleeved with a lock shaft spring, and the lock cylinder and the lock shaft are installed with a limit, the clamping ring is installed on the outer side of the locking shaft, and a small locking block and a locking block spring are installed in the clamping ring. The device provided by the invention adopts a pyrotechnic connection and separation technology, and has advantages of low impact, large bearing capacity, high unlocking synchronism, small size, high reliability and the like.

Description

Technical field [0001] The present invention belongs to the field of aerospace technology, and more particularly to a connection secondary locking device. Background technique [0002] The connection lock and separation release have always been widely concerned as key technologies in the aerospace sector. Most of the bottom connection separation devices are still using fireworks, and the fireworks have high reliability, rapid response, high synchronization. The current application is mostly the working state separated after the connection, and less scheduled for the connection after connectivity. With the booming of my country's aerospace industry, with the continuous advancement of the tasks such as the moon, Mars probe, space station construction, a large number of high-precision detection equipment, micro-weapon equipment, small observation satellite application, connection lock technology is facing New opportunities for innovation and development. Inventive content [0003] ...

Claims

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Application Information

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IPC IPC(8): B64G1/64
CPCB64G1/64
Inventor 盖东民刘学赵航
Owner SHENYANG AEROSPACE XINGUANG GRP
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