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A binding and unlocking device for spacecraft

A technology of unlocking device and spacecraft, applied in the direction of docking device of space navigation vehicle, etc., can solve the problem of inconvenient loading of force, and achieve the effect of convenient observation of fusing process, optimization of base structure, and avoidance of thread loosening.

Active Publication Date: 2022-07-29
SHANGHAI SATELLITE ENG INST
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

But it is not very convenient in the loading of force

Method used

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  • A binding and unlocking device for spacecraft
  • A binding and unlocking device for spacecraft
  • A binding and unlocking device for spacecraft

Examples

Experimental program
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Effect test

Embodiment 1

[0040] The present invention provides a binding unlocking device for a spacecraft, comprising a base 1 , a tension cable assembly 2 , a locking assembly 3 and a fuse cutter 4 . As an intermediate piece, the base 1 is installed on the spacecraft body through corresponding structures on the one hand, and on the other hand, the tension cable assembly 2 , the locking assembly 3 and the fuse cutter 4 are connected and installed by providing corresponding connecting holes and other structures. Specifically, the base 1 is designed as a seat-type structure, and the base 1 of the seat-type structure includes a seat plate, a backrest plate and a U-shaped card slot 12 . The U-shaped card slot 12 is located on the lower surface of the seat plate of the base 1, and serves as a leg structure of the seat, and is used for card connection with the corresponding structure of the spacecraft body. The U-shaped card slot 12 includes a first side plate 121 and a second side plate 122 . The plate su...

Embodiment 2

[0052] The second embodiment is formed on the basis of the first embodiment, and the structural strength of the base is improved by optimizing the structure of the base, specifically through the arrangement of rib plates. specifically:

[0053] A first rib 15 is provided between the seat plate of the base 1 and the backboard of the base 1. The first rib 15 is preferably two pieces, which are arranged on both sides, and are preferably symmetrically arranged. The structural shape of the first rib 15 may be a triangular plate. The first rib 15 may be provided with a lightening hole, and the lightening hole may be a circular hole or a polygonal hole.

[0054] A second rib 16 is provided between the wall plate 14 and the first side plate 121 of the U-shaped slot 12 . The structural shape of the second rib 16 is preferably a triangular plate.

[0055] A third rib 17 is provided between the seat plate of the base 1 and the second side plate 122 of the U-shaped card slot 12 . . T...

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Abstract

The invention relates to a binding unlocking device for spacecraft in the technical field of binding and unlocking, comprising a base, a tension cable assembly, a locking assembly and a fuse cutter; There is a first connection hole, a U-shaped card slot is arranged under the seat plate of the base, a connection block is arranged on the back of the backboard of the base, the connection block is provided with a stepped hole, and the side of the connection block extends downward with a wall plate, and the wall plate is provided with The second connecting hole; the locking assembly includes a rotating block and a U-shaped ferrule, the rotating block is provided with a threaded through hole, the rotating block is rotatably installed in the stepped hole, and the U-shaped ferrule is clamped on the connecting block and restricts the rotation of the rotating block. Axial movement; the tension cable assembly includes a fixed end, a fiber rod and a movable end which are connected in sequence, the fixed end is connected with the first connection hole, and the movable end enters from the lower end of the stepped hole and is threadedly connected with the threaded through hole; The type cutter fuses the fiber rod through the second connecting hole. The invention can be reused, has low cost and good economic benefit.

Description

technical field [0001] The present invention relates to a binding and unlocking device, in particular, to a binding and unlocking device for spacecraft. Background technique [0002] At present, the commonly used pyrotechnic unlocking devices in China (such as explosive bolts, pyrotechnic cutters, etc.) are all linear compression, which realizes the compression of the separated parts and the body through threads or compression rods. In addition, the instantaneous large-scale impact load generated by the pyrotechnic unlocking device will affect the satellite attitude and sensitive units. During the ignition process of the pyrotechnic device, corrosive and polluting gases will be generated, and the energy generated by the explosion of explosives is directly utilized. There is a certain safety. Hidden danger, the pyrotechnic device belongs to the dangerous goods, which brings inconvenience to the ground storage and use, and the cost of the ground test increases due to the chara...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B64G1/64
CPCB64G1/64
Inventor 聂斌斌王萌赵发刚郑志刚顾志悦
Owner SHANGHAI SATELLITE ENG INST
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