CN103244581B - Spatial tether system elastic clamp piece brake mechanism - Google Patents
Spatial tether system elastic clamp piece brake mechanism Download PDFInfo
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- CN103244581B CN103244581B CN201310165062.3A CN201310165062A CN103244581B CN 103244581 B CN103244581 B CN 103244581B CN 201310165062 A CN201310165062 A CN 201310165062A CN 103244581 B CN103244581 B CN 103244581B
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- tether
- elastic
- cylindrical space
- supporting ring
- clamping device
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Abstract
The invention provides a kind of spatial tether system elastic clamp piece brake mechanism, supporting ring outer rim connects the base of tether system control mechanism, there is a through hole at center, three elastic clips are uniformly distributed around through hole, elastic clip is arc-shaped, circular arc convex surface facing tether, and the plane orthogonal that the center line in the center of circle of circular arc and arc length direction is formed is in supporting ring, three elastic clips are made to enclose the cylindrical space of a variable diameters, there is manhole at mobile clamping device center, elastic clip is through described manhole, and the diameter of manhole is greater than the minimum outer diameter of cylindrical space, be less than the maximum outside diameter of cylindrical space, the cylindrical space that tether encloses through through hole and three elastic clips, the Normal direction of mobile clamping device along supporting ring under motor drives moves, and then changes the shape of elastic clip, the braking force changed.The present invention uses simply, is easy to control, and the damage produced when braking tether is little, and braking force excursion is large.
Description
Technical field
The invention belongs to space technology field, relate to a kind of arrestment mechanism of spatial tether system.
Background technique
Spatial tether system is very promising space science developing direction.It has broad application prospects in terrestrial space and survey of deep space, as produced artificial gravity, space transoportation, reclaiming useful load from track, launch moonlet from space station, utilizing earth terrestrial magnetic field to carry out orbit maneuver, build track power station, atmospheric sounding layer and terrestrial magnetic field and gravity field etc.In spatial tether systematic research and application process, the research for the arrestment mechanism in tether expansion process is a basis and very important work.Project of national nature science fund project " rope control system nonlinear dynamics: theoretical and the experimental research " (numbering: what 10372039) adopt is tether rolling mechanism of Nanjing space flight and aviation university.Tether rolling mechanism is that its tether folding and unfolding assembly, forms primarily of pedestal, spool, motor and motor driver by the long control realized tether of adjusting rope.Tether rolling mechanism is unfavorable for the release of long tether, the braking problem in especially long tether releasing course, is difficult to avoid because braking suddenly the tether fracture caused and the enormous impact brought to tether release platform.
By the research to domestic and international prior art, sum up and find that external spatial tether arrestment mechanism complex structure, control accuracy are wayward, and domestic technique does not have arrestment mechanism.
Summary of the invention
In order to overcome the deficiencies in the prior art, the invention provides a kind of spatial tether system elastic clamp piece brake mechanism, structure is simple, and quality is little, and volume is little, more accurate to the braking of tether.
The technical solution adopted for the present invention to solve the technical problems is: comprise mobile clamping device, elastic clip and supporting ring, described supporting ring outer rim connects the base of tether system control mechanism, there is a through hole at center, three elastic clips are uniformly distributed around through hole, elastic clip is arc-shaped, circular arc convex surface facing tether, and the plane orthogonal that the center line in the center of circle of circular arc and arc length direction is formed is in supporting ring, three elastic clips are made to enclose the cylindrical space of a variable diameters, there is manhole at mobile clamping device center, elastic clip is through described manhole, and the diameter of manhole is greater than the minimum outer diameter of cylindrical space, be less than the maximum outside diameter of cylindrical space, the cylindrical space that tether encloses through through hole and three elastic clips, the Normal direction of mobile clamping device along supporting ring under motor drives moves, and then changes the shape of elastic clip, the braking force changed.
The invention has the beneficial effects as follows: the invention is intended to form the braking on point, when tether is moved by elastic clip, if desired tether is braked, then control the position of mobile clamping device according to the dynamics of braking, when mobile clamping device is close to supporting ring side, indicating brake action reduces; Otherwise then indicating brake action strengthens.The present invention adopts the structure of three elastic clips, this braking method use simple, be easy to control, when tether brake the damage of generation little.Control tether braking force compared to employing two intermediate plates, three intermediate plates more easily fix tether, and braking force excursion is larger.
Accompanying drawing explanation
Fig. 1 is spatial tether system elastic clamp piece brake mechanism schematic diagram;
Fig. 2 is the sectional drawing of elastic clip braking point;
In figure, 1-elastic clip, 2-supporting ring, 3-tether, 4-mobile clamping device.
Embodiment
Below in conjunction with drawings and Examples, the present invention is further described.
Spatial tether system elastic clamp piece brake mechanism of the present invention mainly comprises three parts: mobile clamping device (square structure, control it by external motor to move horizontally), elastic clip and supporting ring (round structure, major function is fixing elastic clip), its outer rim connects underlying base (base of tether system control mechanism), the circle centre position of supporting ring has a circular port, and tether enters clamp device by circular port; In the inner side (tether is through the side of supporting ring) of supporting ring, be uniform-distribution with three elastic clips around circular port; Elastic clip is in bending towards the arc in tether direction also through the circular hole of mobile clamping device, and tether is also the incircle surrounded by three elasticity shell fragments, finally passes from the circular hole of mobile clamping device.Mobile clamping device can substantially horizontal movement and change the shape of elastic clip, the braking force changed with this.
See figures.1.and.2, concrete embodiment is described as follows: spatial tether system resilience intermediate plate brake clamp comprises elastic clip 1, supporting ring 2, mobile clamping device 4.Elastic clip 1 is fixedly connected on supporting ring 2, and the other end of elastic clip 1 passes the hole of mobile clamping device 4.The horizontal motion of mobile clamping device 4 is controlled by external drive, when mobile clamping device 4 moves to supporting ring 2 side, the clamping dynamics of elastic clip 1 pair of tether 3 diminishes, the speed that tether 3 discharges becomes large, when mobile clamping device 4 moves to opposite side, elastic clip 1 pair of tether indicating brake action becomes large, and the speed that tether 3 passes through diminishes.Elastic clip controls the pressure of the braking of tether by three points, because elastic clip and tether surface of contact are smooth, thus little to the damage of tether, but more responsive to the Thickness Ratio of tether.When the Circularhole diameter of mobile clamping device 4 be 1mm, tether 3 diameter be 0.5mm time, when mobile clamping device 4 is positioned at a point, (now braking force is minimum, elastic clip (electing spring steel steel disc as) contacts naturally with tether, mobile clamping device is inoperative) place, now braking force is 0.01N, changes mobile clamping device position, moves 7mm to elastic clip 1 opening direction, mobile clamping device compresses tether gradually, reaches 3.5N to the braking force of tether.
Claims (1)
1. a spatial tether system elastic clamp piece brake mechanism, comprise mobile clamping device, elastic clip and supporting ring, it is characterized in that: described supporting ring outer rim connects the base of tether system control mechanism, there is a through hole at center, three elastic clips are uniformly distributed around through hole, elastic clip is arc-shaped, circular arc convex surface facing tether, and the plane orthogonal that the center line in the center of circle of circular arc and arc length direction is formed is in supporting ring, three elastic clips are made to enclose the cylindrical space of a variable diameters, there is manhole at mobile clamping device center, elastic clip is through described manhole, and the diameter of manhole is greater than the minimum outer diameter of cylindrical space, be less than the maximum outside diameter of cylindrical space, the cylindrical space that tether encloses through the through hole of support ring and three elastic clips, the Normal direction of mobile clamping device along supporting ring under motor drives moves, and then changes the shape of elastic clip, the braking force changed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310165062.3A CN103244581B (en) | 2013-05-07 | 2013-05-07 | Spatial tether system elastic clamp piece brake mechanism |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310165062.3A CN103244581B (en) | 2013-05-07 | 2013-05-07 | Spatial tether system elastic clamp piece brake mechanism |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103244581A CN103244581A (en) | 2013-08-14 |
| CN103244581B true CN103244581B (en) | 2016-02-17 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201310165062.3A Active CN103244581B (en) | 2013-05-07 | 2013-05-07 | Spatial tether system elastic clamp piece brake mechanism |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109250155B (en) * | 2018-11-21 | 2020-07-14 | 北京宇航***工程研究所 | Spatial tether release mechanism adopting elastic sheet damping |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115636113A (en) * | 2022-09-29 | 2023-01-24 | 北京理工大学 | Tether releasing device applied to space tether |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3534936A1 (en) * | 1985-10-01 | 1987-04-09 | Fritz Stahlecker | Apparatus for the spinning of a fibre sliver |
| CN2680635Y (en) * | 2004-03-04 | 2005-02-23 | 河北东方机械厂 | Steel rope cramp |
| CN102674108A (en) * | 2012-05-30 | 2012-09-19 | 江门市蒙德电气股份有限公司 | Electronic control brake device for elevator cage |
| CN102795526A (en) * | 2012-08-28 | 2012-11-28 | 刘德民 | Progressive rope gripper and progressive overspeed protection safety device for dragging type lifting device |
-
2013
- 2013-05-07 CN CN201310165062.3A patent/CN103244581B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3534936A1 (en) * | 1985-10-01 | 1987-04-09 | Fritz Stahlecker | Apparatus for the spinning of a fibre sliver |
| CN2680635Y (en) * | 2004-03-04 | 2005-02-23 | 河北东方机械厂 | Steel rope cramp |
| CN102674108A (en) * | 2012-05-30 | 2012-09-19 | 江门市蒙德电气股份有限公司 | Electronic control brake device for elevator cage |
| CN102795526A (en) * | 2012-08-28 | 2012-11-28 | 刘德民 | Progressive rope gripper and progressive overspeed protection safety device for dragging type lifting device |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109250155B (en) * | 2018-11-21 | 2020-07-14 | 北京宇航***工程研究所 | Spatial tether release mechanism adopting elastic sheet damping |
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| CN103244581A (en) | 2013-08-14 |
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