CN103244581A - Spatial tether system elastic clamp piece brake mechanism - Google Patents
Spatial tether system elastic clamp piece brake mechanism Download PDFInfo
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- CN103244581A CN103244581A CN2013101650623A CN201310165062A CN103244581A CN 103244581 A CN103244581 A CN 103244581A CN 2013101650623 A CN2013101650623 A CN 2013101650623A CN 201310165062 A CN201310165062 A CN 201310165062A CN 103244581 A CN103244581 A CN 103244581A
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- tether
- hole
- elastic clamp
- elastic clip
- clamping device
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Abstract
The invention provides a spatial tether system elastic clamp piece brake mechanism. The outer edge of a support ring is connected to a base of a spatial tether system control mechanism. A through hole is arranged at the center of the support ring. Three elastic clamp pieces are evenly distributed around the through hole. Each elastic clamp piece is arc-shaped, a protruding face of the arc faces a tether, a circle center of the arc and a central line of the length direction of the arc form planar perpendicularity on the support ring to allow the three elastic clamp pieces to form a cylindrical space with varied diameter. A circular through hole is arranged at the center of a movable clamping device. The elastic clamp pieces penetrates through the circular through hole. The diameter of the circular through hole is larger than the minimum outer diameter of the cylindrical space and smaller than the maximum outer diameter of the cylindrical space. The tether penetrates the through hole and the cylindrical space. The movable clamping device is driven by a motor to move along the normal direction of the support ring to change shapes of the elastic clamp pieces and generate varied brake force. The spatial tether system elastic clamp piece brake mechanism is simple to use, easy to control, low in damage generated during tether braking, and high in braking force variation range.
Description
Technical field
The invention belongs to the space technology field, relate to the arrestment mechanism of a kind of space tether system.
Background technique
The space tether system is very promising space science developing direction.It is having broad application prospects aspect terrestrial space and the survey of deep space, as producing artificial gravity, space transportation, reclaiming useful load, launch moonlet from the space station, utilize earth terrestrial magnetic field to carry out orbit maneuver, build track power station, atmospheric sounding layer and terrestrial magnetic field and gravity field etc. from track.In the research and application process of space tether system, be a basis and very important work for the research of the arrestment mechanism in the tether expansion process.(numbering: what 10372039) adopt is the tether rolling mechanism to the project of national nature science fund project of Nanjing space flight and aviation university " rope control system nonlinear dynamics: theory and experimental research ".The tether rolling mechanism is that its tether folding and unfolding assembly mainly is made up of pedestal, spool, motor and motor driver by the long control that realizes tether of adjusting rope.The tether rolling mechanism is unfavorable for the release of long tether, and the braking problem in the especially long tether releasing course is difficult to avoid the tether fracture that causes because of braking suddenly and the enormous impact of bringing for the tether release platform.
By the research to domestic and international prior art, sum up to find that state's external space tether arrestment mechanism complex structure, control accuracy are wayward, and domestic technique there is not arrestment mechanism.
Summary of the invention
In order to overcome the deficiencies in the prior art, the invention provides a kind of space tether system elastic clip arrestment mechanism, simple in structure, quality is little, and volume is little, and is 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 the center, around even three elastic clips that distribute of through hole, it is circular-arc that elastic clip is, the convex surface of circular arc is towards tether, and the plane that the center line of the center of circle of circular arc and arc length direction forms is perpendicular to supporting ring, make three elastic clips enclose a cylindrical space that becomes diameter, there is manhole at the mobile clamping device center, elastic clip passes described manhole, and the diameter of manhole is greater than the minimum outer diameter of cylindrical space, less than the maximum outside diameter of cylindrical space, tether passes through hole and three cylindrical spaces that elastic clip surrounds; Mobile clamping device moves in the Normal direction of motor driving lower edge supporting ring, and then changes the shape of elastic clip, the braking force that changes.
The invention has the beneficial effects as follows: the braking on the invention is intended to form a little, when tether moves by elastic clip, if need brake tether, then control the position of mobile clamping device according to the dynamics of braking, when mobile clamping device relied on supporting ring one side, the braking dynamics reduced; Otherwise then braking puts more effort.The present invention adopts the structure of three elastic clips, that this braking method uses is simple, be easy to control, when tether brake the damage of generation little.Than two intermediate plates control of employing tether braking force, three easier fixedly tethers of intermediate plate, the braking force excursion is bigger.
Description of drawings
Fig. 1 is space tether system elastic clip arrestment mechanism schematic representation;
Fig. 2 is the sectional drawing of elastic clip braking point;
Among the figure, 1-elastic clip, 2-supporting ring, 3-tether, 4-mobile clamping device.
Embodiment
The present invention is further described below in conjunction with drawings and Examples.
Space of the present invention tether system elastic clip arrestment mechanism mainly comprises three parts: mobile clamping device (square structure, controlling it by external motor moves horizontally), elastic clip and supporting ring (round structure, major function is fixing elastic clip), its outer rim connects bottom pedestal (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 inboard of supporting ring (tether passes a side of supporting ring), be uniform-distribution with three elastic clips around circular port; Elastic clip is the arc that bends towards the tether direction and the circular hole that passes mobile clamping device, and tether also is the incircle that surrounds by three elasticity shell fragments, and the circular hole from mobile clamping device passes at last.Mobile clamping device can substantially horizontal movement and change the shape of elastic clip, with this braking force that changes.
See figures.1.and.2, concrete embodiment is described as follows: space tether system elastic clip brake clamp comprises elastic clip 1, supporting ring 2, mobile clamping device 4.Elastic clip 1 is fixedly connected on the supporting ring 2, and the other end of elastic clip 1 passes the hole of mobile clamping device 4.Horizontal motion by external drive control mobile clamping device 4, when mobile clamping device 4 during to supporting ring 2 one side shiftings, the clamping dynamics of 1 pair of tether 3 of elastic clip diminishes, the speed that tether 3 discharges becomes big, when mobile clamping device 4 moves to opposite side, it is big that 1 pair of tether braking of elastic clip dynamics becomes, and the speed that tether 3 passes through diminishes.Elastic clip is controlled by the pressure of three points the braking of tether, because elastic clip and tether surface of contact are smooth, thus little to the damage of tether, but relatively more responsive to the thickness of tether.When the Circularhole diameter of mobile clamping device 4 be 1mm, when tether 3 diameters are 0.5mm, when mobile clamping device 4 is positioned at a point (this moment braking force minimum, elastic clip (electing the spring steel steel disc as) contacts naturally with tether, mobile clamping device is inoperative) locate, this moment, braking force was 0.01N, changed the mobile clamping device position, moved 7mm to elastic clip 1 opening direction, mobile clamping device compresses tether gradually, and the braking force of tether is reached 3.5N.
Claims (1)
1. space tether system elastic clip arrestment 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 the center, around even three elastic clips that distribute of through hole, it is circular-arc that elastic clip is, the convex surface of circular arc is towards tether, and the plane that the center line of the center of circle of circular arc and arc length direction forms is perpendicular to supporting ring, make three elastic clips enclose a cylindrical space that becomes diameter, there is manhole at the mobile clamping device center, elastic clip passes described manhole, and the diameter of manhole is greater than the minimum outer diameter of cylindrical space, and less than the maximum outside diameter of cylindrical space, tether passes through hole and three cylindrical spaces that elastic clip surrounds; Mobile clamping device moves in the Normal direction of motor driving lower edge supporting ring, and then changes the shape of elastic clip, the braking force that changes.
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 true CN103244581A (en) | 2013-08-14 |
| CN103244581B CN103244581B (en) | 2016-02-17 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310165062.3A Active CN103244581B (en) | 2013-05-07 | 2013-05-07 | Spatial tether system elastic clamp piece brake mechanism |
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| CN (1) | CN103244581B (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109250155A (en) * | 2018-11-21 | 2019-01-22 | 北京宇航系统工程研究所 | A kind of spatial tether relieving mechanism damped using elastic slice |
| 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 (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109250155A (en) * | 2018-11-21 | 2019-01-22 | 北京宇航系统工程研究所 | A kind of spatial tether relieving mechanism damped using elastic slice |
| CN115636113A (en) * | 2022-09-29 | 2023-01-24 | 北京理工大学 | Tether releasing device applied to space tether |
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| Publication number | Publication date |
|---|---|
| CN103244581B (en) | 2016-02-17 |
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