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A non-cooperative target satellite-rocket docking ring capturing mechanism and a capture method thereof

A non-cooperative target and docking ring technology, which is applied to the non-cooperative target star-arrow docking ring capture mechanism and its capture field, can solve the problems of narrow application range, low integration, and large volume, and achieve short capture time and high integration , small size effect

Active Publication Date: 2019-01-04
HARBIN INST OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] In order to solve the problems of low integration, large volume, heavy mass and narrow application range in the existing non-cooperative target docking ring capture mechanism, the present invention further provides a non-cooperative target star-arrow docking ring capture mechanism

Method used

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  • A non-cooperative target satellite-rocket docking ring capturing mechanism and a capture method thereof
  • A non-cooperative target satellite-rocket docking ring capturing mechanism and a capture method thereof
  • A non-cooperative target satellite-rocket docking ring capturing mechanism and a capture method thereof

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Experimental program
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specific Embodiment approach 1

[0034] Specific implementation mode one: as figure 1 with figure 2 As shown, the non-cooperative target satellite docking ring capture mechanism of this embodiment includes an upper support shell 1, an inner capture finger 2, an upper cover plate 3, an outer capture finger 7, an adapter 8, a motor rotor shaft 10, and a brake assembly , the lower supporting shell 20, the ball screw shaft 36, the screw nut 37, the motor stator 38 and the motor rotor 39; the upper supporting shell 1 is a rectangular parallelepiped shell, and the lower supporting shell 20 is fixed on the On the lower end face, the upper cover plate 3 is fixed on the upper end face of the upper support case 1, the ball screw shaft 36 is vertically installed on the upper support case 1 and the lower part of the ball screw shaft 36 is located on the lower support case 20 Inside, the lead screw nut 37 is mounted on the ball screw shaft 36 and is located in the upper support housing 1, the adapter 8 is fixedly sleeve...

specific Embodiment approach 2

[0038] Specific implementation mode two: as figure 1 As shown, the non-cooperative target star-rocket docking ring capture mechanism in this embodiment also includes a deep groove ball bearing cover 4, a disc spring support pad 6, a deep groove ball bearing 49 and a disc spring 44, and the center of the upper cover plate 3 is processed with Bearing support hole, the deep groove ball bearing 49 is installed in the bearing support hole of the upper cover plate 3, the disc spring 44 is arranged on the upper end surface of the deep groove ball bearing 49 through the disc spring support pad 6, and the deep groove ball bearing cover 4 is passed through the screw Connected to the top cover. Such a design can effectively compensate the influence of the deformation of the ball screw shaft 36 caused by the temperature change. Other components and connections are the same as those in the first embodiment.

[0039] The deep groove ball bearing 49 is installed in the bearing support hole...

specific Embodiment approach 3

[0040] Specific implementation mode three: as figure 1 As shown, the non-cooperative target star-arrow docking ring capture mechanism in this embodiment also includes a bearing seat 9, an angular contact ball bearing inner ring lock nut 21, an angular contact ball bearing inner support sleeve 22, an angular contact ball bearing outer ring lock Tight nut 23 and two angular contact ball bearings 45, the bearing housing 9 is fixedly installed in the central through hole at the bottom of the upper supporting shell 1, the inner support sleeve 22 of the angular contact ball bearing is fixedly sleeved on the bottom of the ball screw shaft 36, and the two Two angular contact ball bearings 45 are set back-to-back on the inner support sleeve 22 of the angular contact ball bearings, two angular contact ball bearings 45 are located in the bearing housing 9, and the lower end of the bearing housing 9 is locked by the locking nut 21 of the inner ring of the angular contact ball bearing The ...

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Abstract

The invention relates to a non-cooperative target satellite-rocket docking ring capturing mechanism and a capture method thereof. The invention solves the problems of low integration, large volume, heavy weight and low tolerance, and long capture time of the existing non-cooperative target docking ring capturing mechanism. The non-cooperative target satellite-rocket docking ring capturing mechanism adopts a motor to directly drive the ball screw shaft to drive the screw nut fixed on the adapter to carry out linear motion. A low end of that adapter and the capture fin forms a swivel pair through the needle bearing assembly. An upper support housing needle roller bearing assembly is placed in the middle of the positioning groove of the capture finger. The upward and downward motion of the adapter makes the capturing finger to complete the opening and closing motion, and accomplish the capture of the non-cooperative target. The stroke switch and the stroke switch signal acquisition boardare used to control the opening and closing of the capture finger. The invention is applicable to the capture of the satellite-arrow butt joint ring, and has the advantages of small volume, large tolerance, high connection rigidity, short capture time and the like.

Description

technical field [0001] The invention relates to a non-cooperative target star-rocket docking ring capture mechanism and a capture method thereof, which belong to the technical field of space robots. Background technique [0002] With the development of science and technology, countries around the world have intensified their research efforts in the aerospace field. However, the earth's orbital resources are scarce, especially the geostationary orbit used as a communication satellite, which is an extremely precious and unique orbit. Therefore, on-orbit capture technology has become a research hotspot and difficulty in the aerospace field worldwide. On-orbit acquisition of non-cooperative targets will play an important role in auxiliary agency deployment, satellite refueling, repair and replacement of faulty components, etc. A major technical difficulty in on-orbit capture of non-cooperative targets lies in the design of the capture mechanism. [0003] Compared with cooperat...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B64G4/00B64G1/64
CPCB64G1/646B64G4/00
Inventor 孙永军刘宏金明河崔士鹏史士财刘伊威
Owner HARBIN INST OF TECH
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