CN201385789Y - Cable rod type one-dimensional extension arm - Google Patents
Cable rod type one-dimensional extension arm Download PDFInfo
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- CN201385789Y CN201385789Y CN200920099054U CN200920099054U CN201385789Y CN 201385789 Y CN201385789 Y CN 201385789Y CN 200920099054 U CN200920099054 U CN 200920099054U CN 200920099054 U CN200920099054 U CN 200920099054U CN 201385789 Y CN201385789 Y CN 201385789Y
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Abstract
拉索杆式一维伸展臂，目前主要有三种形式：薄壁管状伸展臂、盘压杆式伸展臂、铰接杆式伸展臂。本实用新型组成包括：一组伸展机构，伸展机构由四根空心支撑杆(4)与两个刚性框架(5)构成，展开拉索(10)通过支撑杆(4)的空心与固定于刚性框架(5)角部的翻转锥套(23)，展开辊(15)与展开电机(16)连接，收拢拉索(6)分别穿过所述的刚性框架(5)的对角小孔，一端固定在伸展臂座上，另一端固定在收拢辊筒(1)上，两根防转杆(13)固定在最顶层的刚性框架上，每隔一层刚性框架上的相应位置均安装有直线轴承(12)，展开电机(16)与收拢电机(3)为力矩电机。本实用新型用于航天领域的空间杆状伸展臂。
There are currently three types of cable-rod-type one-dimensional extension arms: thin-walled tubular extension arms, plate-type extension arms, and hinged-rod extension arms. The utility model consists of: a set of stretching mechanism, the stretching mechanism is composed of four hollow support rods (4) and two rigid frames (5), the unfolding cable (10) passes through the hollow of the support rods (4) and is fixed on the rigid The overturning taper sleeve (23) at the corner of the frame (5), the unrolling roller (15) is connected with the unrolling motor (16), and the pulling cables (6) pass through the diagonal small holes of the rigid frame (5) respectively, One end is fixed on the extension arm seat, the other end is fixed on the retracting roller (1), two anti-rotation rods (13) are fixed on the topmost rigid frame, and the corresponding positions on every other layer of rigid frame are installed with Linear bearing (12), expanding motor (16) and drawing in motor (3) are torque motors. The utility model is used for a space bar-shaped extension arm in the aerospace field.
Description
Technical field:
The utility model relates to particularly one dimension extending arm of the shaft-like development mechanism of a kind of drag-line.
Background technology:
Because the restriction of capacity weight envelope size in the vehicle, large space structure must draw in limited space, and after entering the orbit, be stretched to the configuration of anticipation, shaft-like space extending arm is an one dimension development mechanism most widely used in the space development mechanism, and the shaft-like extending arm in space that is applied to space industry at present mainly contains three kinds of forms: thin-walled tubulose extending arm, disk compression bar formula extending arm, hinged rod-type extending arm.
Thin-walled tubulose extending arm arm heel warpage limit structural intensity, thereby heat stability, bending resistance and torsion stiffness are lower, are difficult to realize accurate location.
The extending arm ratio of rigidity is relatively poor in the disk compression bar formula extending arm expansion process, and the extending arm top is around the rotation of the line of centers of extending arm, and extending arm can only be realized in the space once stretching, and can not draw in automatically.
Hinged rod-type extending arm needs complicated stretching, extension and gathering mechanism, and quality is big.
Summary of the invention:
The purpose of this utility model provides the shaft-like development mechanism of a kind of drag-line that can repeat to draw in.
Above-mentioned purpose realizes by following technical scheme:
Guy cable rod type one-dimensional stretching arm, its composition comprises: one group of extension means, described extension means is made of four hollow support rails and two rigid frames, launch drag-line by the hollow of described strut bar and the upset tapered sleeve that is fixed in the rigid frame bight, one end is fixed on the top of extension means, the other end is fixed on and stretches arm seat by on the revolute pair bonded assembly unwind roll, described unwind roll is connected with the expansion motor, draw the diagonal angle aperture that drag-line passes described rigid frame respectively in, one end is fixed on and stretches on the arm seat, the other end is fixed on and draws on the roller, two anti-bull sticks are fixed on the rigid frame of described top layer, and constitute moving sets with the linear bearing that is fixed on the alternating floor rigid frame, from top layer, relevant position on one deck rigid frame all is equipped with linear bearing, and launching motor is torque motor with drawing motor in.
Described guy cable rod type one-dimensional stretching arm, described rigid frame are square frames, the upset tapered sleeve is housed respectively on four turnings and is drilled with four apertures, and hollow support rails is connected by screw thread and hollow stem by the upset awl and constitutes.
Be connected with big gear wheel by miniature gears between described guy cable rod type one-dimensional stretching arm, described expansion motor and unwind roll.
The beneficial effects of the utility model:
The utility model can be used as the stent of Space Facilities, and this support can repeat to launch and draw in, and translation can be realized in the top, this apparatus structure is simple, do not need complicated expansion and draw structure in, quality is little, and extending arm can unrestrictedly extend in theory when using in the space.
Description of drawings:
Accompanying drawing 1 is an expansion front elevation of the present utility model;
Accompanying drawing 2 is expansion lateral plans of the present utility model;
Accompanying drawing 3 is gathering figure of the present utility model;
Accompanying drawing 4 is constructionals drawing of hollow support rails;
Accompanying drawing 5 is rigid frame birds-eye vieies;
Accompanying drawing 6 is individual layer expansion process figure;
Accompanying drawing 7 is the amplification views that launch upset joint, back;
Accompanying drawing 8 is the amplification views that draw upset joint, back in;
Accompanying drawing 9 is to launch drag-line at extending arm top locking mechanism figure.
Wherein: 1. draw roller in, 2. turn to and support I, 3. draw motor, 4. hollow support rails in, 5. rigid frame 6. draws drag-line in, 7. stretches arm seat, 8. big gear wheel, 9. miniature gears 10. launches drag-line, and 11. turn to support III, 12. linear bearings, 13. anti-bull stick, 14. turn to support II, 15. unwind rolls, and 16. launch motors, 17. the upset awl, 18. jam nuts, 19. hollow stems, 20. rigid frame i, 21. rigid frame i+1,22. rigid frame i+2,23. upset tapered sleeves.
The specific embodiment:
Embodiment 1:
Guy cable rod type one-dimensional stretching arm, its composition comprises: one group of extension means, described extension means is made of four hollow support rails 4 and two rigid frames 5, launch drag-line 10 by the hollow of described strut bar 4 and the upset tapered sleeve 23 that is fixed in rigid frame 5 bights, one end is fixed on the top of extension means, the other end is fixed on and stretches arm seat 7 by on the revolute pair bonded assembly unwind roll 15, described unwind roll 15 is connected with expansion motor 16, draw the diagonal angle aperture that drag-line 6 passes described rigid frame 5 respectively in, one end is fixed on and stretches on the arm seat, the other end is fixed on and draws on the roller 1, two anti-bull sticks 13 are fixed on the rigid frame of described top layer, and constitute moving sets with the linear bearing that is fixed on the alternating floor rigid frame, from top layer, relevant position on one deck rigid frame all is equipped with linear bearing 12, and launching motor 16 is torque motor with drawing motor 3 in.
Embodiment 2:
Described guy cable rod type one-dimensional stretching arm, described rigid frame are square frames, the upset tapered sleeve is housed respectively on four turnings and is drilled with four apertures, and hollow support rails is connected by jam nut 18 and hollow stem 19 by upset awl 17 and constitutes.
Embodiment 3:
Described guy cable rod type one-dimensional stretching arm, 15 of described expansion motor 16 and unwind rolls are connected with big gear wheel 8 by miniature gears 9.
Working process:
As shown in Figure 1, the utility model is a multilayer bar closed-in construction, and every layer is made of four hollow support rails 4 and two square rigid frames 5.Hollow support rails 4 is connected firmly by screw thread and hollow stem 19 by the upset of hollow awl 17 and constitutes as shown in Figure 4, bores the length of 17 scalable hollow support rails 4 by the rotation upset.Four of rigid frame 5 corners all are equipped with upset tapered sleeve 23 as shown in Figure 5.Shown in accompanying drawing 1, accompanying drawing 7 and accompanying drawing 9, expansion drag-line 10 passes upset tapered sleeve 23 centre holes of the hollow and corresponding rigid frame of every layer of cooresponding strut bar 4, the one end is fixed in the extending arm top, the other end is fixed in to be positioned at and stretches arm seat 7 by on the unwind roll 15 that launches motor 16 drivings, launches 15 transmission of finishing motion and power by miniature gears 9 and big gear wheel 8 of motor 16 and unwind roll.As shown in Figures 1 and 2, draw drag-line 6 in and have two, pass the diagonal angle aperture of rigid frame respectively, this aperture is positioned at the same side of extending arm and conllinear not after extending arm launches, make the gathering drag-line be the circulation of " Z " shape from the beginning to the end in a side of extending arm, the one end is fixed in and stretches on the arm seat 7, the other end be positioned at the extending arm top by drawing on the gathering roller 1 that motor 3 drives.As shown in Figure 1, anti-bull stick 13 is fixed on the extending arm top layer rigid frame, with top layer rigid frame corresponding position on the rigid frame of one deck linear bearing 12 is housed.
As shown in Figure 3, when extending arm is drawn in, strut bar 4 is in folded state with rigid frame 5, and the parallel axes of strut bar is in the rigid frame plane, and axial occupation space is little.When needing to launch, launch motor 16 and draw motor 3 in by certain relation running, launch drag-line 10 and produce pulling force, drawing drag-line 6 in loosens, under the effect that launches drag-line, the upset awl forms leverage as shown in Figure 8 with upset tapered sleeve 23, drive four strut bar upsets as shown in Figure 6, force the adjacent rigid framework apart, until the axis normal of strut bar as shown in Figure 7 in the plane of rigid frame, during expansion because the friction between drag-line and hollow support rails hollow legn, drag-line is reduced gradually to the application force of strut bar, the overturning couple maximum that bottom strut bar produces begins from the bottom to the top layer successively so stretch, and launches back gathering drag-line 6 and is the circulation of " Z " shape from the beginning to the end in a side of extending arm as shown in Figure 1; Draw motor 3 when needing to draw in and launch motor 16 by certain relation counter-rotating, draw drag-line 6 tensions in, launching drag-line 10 loosens, draw drag-line in the trend motion of stretching to "-" from " Z " shape is arranged under the effect of pulling force, driving adjacent rigid frame relatively rotates, folding gathering under the restriction that launches drag-line 10 simultaneously, until the parallel axes of strut bar in the rigid frame plane, gathering finishes, in the gathering process, because the friction force of drag-line and rigid frame aperture exists, the pulling force that produces in the drag-line reduces equally gradually, so when drawing in, folding movement is that top layer to the bottom from extending arm begins successively.
As shown in Figure 6 launch with the motion process that draws in relatively rotate between adjacent rigid framework (rigid frame i 20 and rigid frame i+1 21) and away from integrated motion, between two rigid frames (rigid frame i and rigid frame i+2 22) at interval following generation of effect of anti-bull stick 13 away from motion and do not relatively rotate, when extending arm has the odd number rigid frame, the only translation vertically of its top is not around rotational.
Claims (3)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200920099054U CN201385789Y (en) | 2009-02-03 | 2009-02-03 | Cable rod type one-dimensional extension arm |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200920099054U CN201385789Y (en) | 2009-02-03 | 2009-02-03 | Cable rod type one-dimensional extension arm |
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| Publication Number | Publication Date |
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| CN201385789Y true CN201385789Y (en) | 2010-01-20 |
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| CN200920099054U Expired - Fee Related CN201385789Y (en) | 2009-02-03 | 2009-02-03 | Cable rod type one-dimensional extension arm |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101823564A (en) * | 2010-03-31 | 2010-09-08 | 北京航空航天大学 | Super-elasticity coiled space-developable mechanism using precision U hinge |
| CN101792023B (en) * | 2009-02-03 | 2013-08-07 | 哈尔滨理工大学 | Guy cable rod type one-dimensional stretching arm |
| CN105674001A (en) * | 2016-03-16 | 2016-06-15 | 中国科学院西安光学精密机械研究所 | Telescopic deployable mechanism |
| CN110775297A (en) * | 2019-09-26 | 2020-02-11 | 上海宇航系统工程研究所 | Hinged type extending arm capable of being repeatedly compressed |
| CN113895652A (en) * | 2021-09-16 | 2022-01-07 | 大连理工大学 | A retractable truss-type extension arm |
-
2009
- 2009-02-03 CN CN200920099054U patent/CN201385789Y/en not_active Expired - Fee Related
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101792023B (en) * | 2009-02-03 | 2013-08-07 | 哈尔滨理工大学 | Guy cable rod type one-dimensional stretching arm |
| CN101823564A (en) * | 2010-03-31 | 2010-09-08 | 北京航空航天大学 | Super-elasticity coiled space-developable mechanism using precision U hinge |
| CN101823564B (en) * | 2010-03-31 | 2012-11-14 | 北京航空航天大学 | Super-elasticity coiled space-developable mechanism using precision U hinge |
| CN105674001A (en) * | 2016-03-16 | 2016-06-15 | 中国科学院西安光学精密机械研究所 | Telescopic deployable mechanism |
| CN105674001B (en) * | 2016-03-16 | 2018-05-29 | 中国科学院西安光学精密机械研究所 | Telescopic deployable mechanism |
| CN110775297A (en) * | 2019-09-26 | 2020-02-11 | 上海宇航系统工程研究所 | Hinged type extending arm capable of being repeatedly compressed |
| CN110775297B (en) * | 2019-09-26 | 2021-07-13 | 上海宇航系统工程研究所 | Hinged type extending arm capable of being repeatedly compressed |
| CN113895652A (en) * | 2021-09-16 | 2022-01-07 | 大连理工大学 | A retractable truss-type extension arm |
| CN113895652B (en) * | 2021-09-16 | 2023-08-04 | 大连理工大学 | A retractable truss type extension arm |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20100120 Termination date: 20120203 |