CN103241387A - Spatial tether system wedge brake mechanism - Google Patents
Spatial tether system wedge brake mechanism Download PDFInfo
- Publication number
- CN103241387A CN103241387A CN2013101654164A CN201310165416A CN103241387A CN 103241387 A CN103241387 A CN 103241387A CN 2013101654164 A CN2013101654164 A CN 2013101654164A CN 201310165416 A CN201310165416 A CN 201310165416A CN 103241387 A CN103241387 A CN 103241387A
- Authority
- CN
- China
- Prior art keywords
- tether
- wedge
- shaped
- brake mechanism
- crevice
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Images
Abstract
The invention provides a spatial tether system wedge brake mechanism which comprises wedge clamp and tether guide device. The wedge clamp is a rectangular block fixed on a base. A wedge gap is reserved on one side of the rectangular block. The width of the opening side of the wedge gap is larger than that of the other side. The tether guide device is characterized in that two tangent tether guide fixed pulley are respectively mounted at two ends of the wedge gap through movable frames, a tether penetrates through the two fixed pulley and moves between the opening side of the wedge gap and the other side of the wedge gap by movement of the movable frames. The spatial tether system wedge brake mechanism is applicable to spatial tether braking during unfolding, simple in structure, convenient to control and high in safety.
Description
Technical field
The invention belongs to the space technology field, particularly a kind of space tether system stop mechanism.
Background technology
The space tether system is very promising space science developing direction.It is having broad application prospects aspect near earth space and the survey of deep space, as producing artificial gravity, space transportation, reclaiming capacity weight, launch small satellite from the space station, utilize earth geomagnetic field to carry out orbit maneuver, build track power station, atmospheric sounding layer and geomagnetic field and gravitational 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 stop mechanism in the tether expansion process.(numbering: what 10372039) adopt is the tether winding mechanism to the project of national nature science fund project of Nanjing space flight and aviation university " rope control system nonlinear kinetics: theory and experimental study ".The tether winding 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 winding mechanism is unfavorable for the release of long tether, and the braking problem in the especially long tether dispose procedure is difficult to avoid the tether fracture that causes because of braking suddenly and the enormous impact of bringing for the tether release platform.
Summary of the invention
In order to overcome the deficiencies in the prior art, the invention provides a kind of space tether system Wedge-shaped brake mechanism, simple in structure, be applicable to the release of the long tether of space tether system, avoid the tether fracture that causes because of braking suddenly and the enormous impact of bringing for the tether release platform.
The technical solution adopted for the present invention to solve the technical problems is: comprise Wedge gripping and tether guide piece.Described Wedge gripping is the cuboid piece that is fixed on the pedestal, and cuboid piece one side has wedge-shaped crevice, and the width of wedge-shaped crevice opening one side is greater than opposite side; Described tether guide piece is by mobile frame two tangent tether guiding fixed pulleys to be installed respectively at the two ends of wedge-shaped crevice, tether passes respectively between two fixed pulleys, and the movement by mobile frame makes tether mobile between opening one side of wedge-shaped crevice and opposite side.
Described cuboid piece is aluminum alloy material.
Described wedge-shaped crevice is along the length direction opening of cuboid piece, and the width of wedge-shaped crevice opening one side is greater than the tether diameter, and the width of opposite side is less than the tether diameter.
The angle of described wedge-shaped crevice is 0.05 °.
The wallboard of described wedge-shaped crevice is through anodizing, and the surface is coated with fire coat and handles through frosted.
Described tether guiding fixed pulley has guide groove at circumference, and the guide groove diameter is more than or equal to the tether diameter.
The invention has the beneficial effects as follows: the tether stop mechanism can be adjusted by the different depth that the tether guide piece makes tether drop to wedge-shaped crevice the gripping power of tether, tether is applied progressive positive pressure, avoided the tether fracture that causes because of braking suddenly and the enormous impact of bringing for the tether release platform; In a single day in the tether dispose procedure, require emergency braking, the reliable stop of tether that the tether stop mechanism can directly will discharge rapidly fast.Space of the present invention tether Wedge-shaped brake mechanism is applicable to the braking of space tether in expansion process, and simple in structure, and control is convenient, the safety performance height.
Description of drawings
Fig. 1 is the structural representation of space of the present invention tether system Wedge-shaped brake mechanism;
Fig. 2 is the generalized section of Wedge gripping of the present invention;
Among the figure, the 1-Wedge gripping, 101-cuboid piece, the 102-wedge-shaped crevice, 2-tether guide piece, 201-tether guiding fixed pulley, 202-moves frame, 203-bolt, 2011-guide groove, 3-tether, 4-pedestal, 5-wedge-shaped crevice angle.
The specific embodiment
The present invention is further described below in conjunction with drawings and Examples.
The invention provides a kind of space tether system Wedge-shaped brake mechanism, be used for solving tether in the braking problem of dispose procedure.Space of the present invention tether system Wedge-shaped brake mechanism comprises Wedge gripping and tether guide piece.Described Wedge gripping is the cuboid piece that is fixed on the pedestal, the low-angle wedge-shaped crevice of splaying out in the middle of the cuboid piece, and wedge-shaped crevice is wide at the top and narrow at the bottom; Described tether guide piece is at the left and right sides of mobile frame Bian Nei two tether guiding fixed pulleys to be installed respectively.Utilize the tether guide piece that tether is placed wedge-shaped crevice, by moving up and down of mobile frame tether is moved up and down in wedge-shaped crevice.Wedge gripping and tether guide piece utilize wedge shape to clamp that different depth that principle can make tether drop to the slit produces and the slit wallboard between differentiated friction power.The degree of depth that descends is launched control law according to tether and is calculated given.Because the area of contact of this Wedge gripping and tether is bigger, thereby can improve the tension force of tether, and can reduce the wearing and tearing of tether, and the intensity of this Wedge gripping is higher, not fragile, further improved safety factor.The described space of patent of the present invention tether Wedge-shaped brake mechanism is applicable to the braking of space tether in expansion process, and simple in structure, and control is convenient, the safety performance height.
Described wedge-shaped crevice is along the length direction opening of cuboid piece, and the width of wedge-shaped crevice opening one side is greater than the tether diameter, and the width of opposite side is less than the tether diameter.
See figures.1.and.2, space of the present invention tether system Wedge-shaped brake mechanism includes Wedge gripping 1 and tether guide piece 2.Tether system used tether 3 in space is high-molecular polythene materials, and diameter is 1mm.Wedge gripping 1 is the aluminum alloy cuboid piece 101 that is fixed on the pedestal 4, splays into low-angle wedge-shaped crevice 102 in the middle of the cuboid piece 101, and wedge-shaped crevice 102 is wide at the top and narrow at the bottom, and wedge-shaped crevice angle 5 is 0.05 °, and the degree of depth is 2.5mm.The slit wallboard is coated with layer oxide film in the above and handles to increase tether with the friction coefficient between the wallboard through frosted through anodizing, and tether is 0.3 with the friction coefficient f between wallboard.Tether guide piece 2 is that four tether guiding fixed pulley 201 usefulness bolts 203 are installed in mobile frame 202 left and right sides Bian Nei respectively, and circular arc shaped guide slots 2011 slightly larger in diameter on the tether guiding fixed pulley 201 are in the tether diameter.During concrete the application, tether 3 enters from two 201 on fixed pulleys of tether guiding on mobile frame 202 left sides, is producing friction force in the middle of the cuboid piece 101 and between wedge-shaped crevice 102 wallboards, goes out through two 201 on fixed pulleys of tether guiding on mobile frame 202 the right then.Tether guide piece 2 can make tether 3 move up and down in wedge-shaped crevice 102, utilize wedge shape to clamp that different depth that principle can make tether 3 drop to wedge-shaped crevice 102 produces and the slit wallboard between differentiated friction power.
The degree of depth of tether in wedge-shaped crevice can be launched control law according to tether and calculate given.For example, when tether needs snap catch, utilize the tether guide piece can rapidly tether be moved to the lower end of wedge-shaped crevice in the Wedge gripping, it is big and pressure is also big to contact area between tether and slit wallboard, produces bigger braking force, is about 5N.In the tether rapid deployment stage, the braking force that needs is less, at this moment tether is moved to the upper end of wedge-shaped crevice, makes that the friction force between tether and slit wallboard is less, is about 10mN.
The tether stop mechanism that present embodiment provides, Wedge gripping cooperates with the tether wedging, and the area of contact of tether and Wedge gripping is bigger, thereby can improve the degree of tension of tether, and can reduce the wearing and tearing of tether, and this stop mechanism intensity is higher, not fragile, further improved safety factor.
Space of the present invention tether Wedge-shaped brake mechanism is applicable to the braking of the long tether in space in expansion process, and simple in structure, and control is convenient, the safety performance height.
Claims (6)
1. space tether system Wedge-shaped brake mechanism, comprise Wedge gripping and tether guide piece, it is characterized in that: described Wedge gripping is the cuboid piece that is fixed on the pedestal, and cuboid piece one side has wedge-shaped crevice, and the width of wedge-shaped crevice opening one side is greater than opposite side; Described tether guide piece is by mobile frame two tangent tether guiding fixed pulleys to be installed respectively at the two ends of wedge-shaped crevice, tether passes respectively between two fixed pulleys, and the movement by mobile frame makes tether mobile between opening one side of wedge-shaped crevice and opposite side.
2. space according to claim 1 tether system Wedge-shaped brake mechanism, it is characterized in that: described cuboid piece is aluminum alloy material.
3. space according to claim 1 tether system Wedge-shaped brake mechanism, it is characterized in that: described wedge-shaped crevice is along the length direction opening of cuboid piece, and the width of wedge-shaped crevice opening one side is greater than the tether diameter, and the width of opposite side is less than the tether diameter.
4. space according to claim 1 tether system Wedge-shaped brake mechanism, it is characterized in that: the angle of described wedge-shaped crevice is 0.05 °.
5. space according to claim 1 tether system Wedge-shaped brake mechanism, it is characterized in that: the wallboard of described wedge-shaped crevice is through anodizing, and the surface is coated with fire coat and handles through frosted.
6. space according to claim 1 tether system Wedge-shaped brake mechanism, it is characterized in that: described tether guiding fixed pulley has guide groove at circumference, and the guide groove diameter is more than or equal to the tether diameter.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310165416.4A CN103241387B (en) | 2013-05-07 | 2013-05-07 | Spatial tether system wedge brake mechanism |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310165416.4A CN103241387B (en) | 2013-05-07 | 2013-05-07 | Spatial tether system wedge brake mechanism |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103241387A true CN103241387A (en) | 2013-08-14 |
| CN103241387B CN103241387B (en) | 2016-01-06 |
Family
ID=48921319
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310165416.4A Active CN103241387B (en) | 2013-05-07 | 2013-05-07 | Spatial tether system wedge brake mechanism |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103241387B (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104058111A (en) * | 2014-05-30 | 2014-09-24 | 西北工业大学 | Ground experiment device for space tether system |
| 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 (3)
| 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 |
| CN1075617A (en) * | 1992-02-27 | 1993-09-01 | 彭加林 | A kind of improved self-locking waist belt |
| CN1647711A (en) * | 2004-01-29 | 2005-08-03 | Ykk株式会社 | Buckle for fastening rope |
-
2013
- 2013-05-07 CN CN201310165416.4A patent/CN103241387B/en active Active
Patent Citations (3)
| 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 |
| CN1075617A (en) * | 1992-02-27 | 1993-09-01 | 彭加林 | A kind of improved self-locking waist belt |
| CN1647711A (en) * | 2004-01-29 | 2005-08-03 | Ykk株式会社 | Buckle for fastening rope |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104058111A (en) * | 2014-05-30 | 2014-09-24 | 西北工业大学 | Ground experiment device for space tether system |
| CN104058111B (en) * | 2014-05-30 | 2016-03-30 | 西北工业大学 | Spatial tether system ground-test plant |
| 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 |
Also Published As
| Publication number | Publication date |
|---|---|
| CN103241387B (en) | 2016-01-06 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN103241387A (en) | Spatial tether system wedge brake mechanism | |
| CN202083541U (en) | Follow-up loading structure for airplane flap test | |
| CN106184800B (en) | A kind of unmanned plane stops intelligent platform from steady | |
| CN107039672B (en) | Rubberizing production line | |
| CN110331661B (en) | Pier detection device based on electromagnetic spring | |
| CN204307229U (en) | Magnetic force is slow falls safe escape device | |
| CN106114921A (en) | A kind of utilization hangs the device that sun wing plate erecting by overhang is braked by bead | |
| CN203781784U (en) | Synchronous all-wheel drive transporter | |
| CN107046146B (en) | A rubberizing equipment for battery packaging field | |
| CN103244581B (en) | Spatial tether system elastic clamp piece brake mechanism | |
| CN104960922A (en) | Cylinder suction cup machine and gantry frame type cantilever suction cup machine | |
| CN212503702U (en) | Movable safety belt hanging point device for aerial work | |
| CN205132891U (en) | A additional stopper for automatic escalator or moving walk | |
| CN204097029U (en) | Companion ladder lockable mechanism | |
| CN204265196U (en) | A kind of traction sheave safety guard | |
| CN103255703A (en) | Platform bridge lifting equipment without power device | |
| CN201981486U (en) | Device for adjusting postures in the air of steel pipe arch | |
| CN207241695U (en) | Wire saws rail mounted overhead manned equipment i-beam track telescopic device | |
| CN219044780U (en) | Escape descent control and fire protection transportation system | |
| CN104307116A (en) | Escaping device | |
| CN111824951B (en) | Stop device of foldable rail-mounted crane | |
| CN218663250U (en) | Tool for transporting and hoisting 40M aluminum alloy ships | |
| CN109515742B (en) | Auxiliary fixtures is repaired to aerostatics utricule normal position | |
| CN205170101U (en) | Hauler safety arrangement | |
| CN107039686B (en) | Winding device of rubberizing equipment for battery packaging field |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |