CN103457403B - The large-scale orthoscopic being applied to spacecraft launches driving mechanism - Google Patents
The large-scale orthoscopic being applied to spacecraft launches driving mechanism Download PDFInfo
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- CN103457403B CN103457403B CN201310345368.7A CN201310345368A CN103457403B CN 103457403 B CN103457403 B CN 103457403B CN 201310345368 A CN201310345368 A CN 201310345368A CN 103457403 B CN103457403 B CN 103457403B
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Abstract
A kind of large-scale orthoscopic being applied to spacecraft of disclosure launches driving mechanism, including planetary reduction gear motor, motor lead screw assembly, stringer telescoping mechanism, wherein, planetary reduction gear step motor drive motor lead screw assembly, the electric machine rotation of planetary reduction gear motor is converted into straight-line displacement and exports to stringer telescoping mechanism by motor lead screw assembly, to control the flexible of stringer telescoping mechanism。Present invention can be implemented in big distance in rectilinear direction to launch, structure is used lightweight, the design of low frictional resistance in a large number, there is lightweight and high reliability, be a kind of space development agency having stronger using value on spacecraft。
Description
Technical field
The present invention relates to a kind of large-scale orthoscopic and launch driving mechanism, export straight-line displacement by motor lead screw assembly, amplify output displacement through stringer telescoping mechanism, finally realize larger displacement output, the large-scale orthoscopic being specifically related to be applied to spacecraft launches driving mechanism。
Background technology
Along with the development of space technology, the structure of spacecraft is increasingly sophisticated, and function is on the increase, it is necessary to take various mechanism to complete various task。Spacecraft mechanism refers to so that spacecraft and parts or adnexa thereof complete the mechanical component of compulsory exercise or motion。Its basic function is: realize various action or motion after spacecraft is launched and entered the orbit, and makes spacecraft or its parts, adnexa be in duty or the operating position of requirement。Putting before this, different mechanisms has different concrete functions, and along with the development of space technology, particular with the development of manned space flight and survey of deep space technology, the concrete function of spacecraft mechanism is continually changing, develops and expands。
Summary of the invention
For the demand, the invention belongs to motor-driven active collapsible development mechanism, complete move in line, can drive and realize distance straight line and stretch。Can be used for making spaceborne unit extend to outside star relatively remote, to meet its functional realiey demand, it is possible to as the driving mechanism that the devices such as shade launch。
Driving mechanism is launched according to the large-scale orthoscopic being applied to spacecraft provided by the invention, including planetary reduction gear motor, motor lead screw assembly, stringer telescoping mechanism, wherein, planetary reduction gear step motor drive motor lead screw assembly, the electric machine rotation of planetary reduction gear motor is converted into straight-line displacement and exports to stringer telescoping mechanism by motor lead screw assembly, to control the flexible of stringer telescoping mechanism。
Preferably, also include base, the seat of honour, stringer telescoping mechanism includes the multiple diamond structures being sequentially connected with driving arm and being mainly made up of linking arm, wherein, two linking arms of stringer telescoping mechanism lower end are underarm, underarm is articulated with base, is connected between dish at two underarms with the screw mandrel of motor lead screw assembly and is connected to driving arm, and the upper end of stringer telescoping mechanism is provided with the seat of honour。
Preferably, stringer telescoping mechanism about motor lead screw assembly straight-line displacement outbound course axisymmetricly。
Preferably, the quantity of diamond structure is 5。
Preferably, arm is driven to be connected to the middle part of underarm。
Preferably, the cross section of linking arm is hollow order font。
Preferably, the deformation between each diamond structure is consistent。
Owing to have employed above technical scheme, relative to prior art so that the present invention has following beneficial effect:
1, design configuration of the present invention is simple, has good processing technology and assembly process process；
2, decelerating step motor drives, and output displacement is stablized controlled；
3, stringer telescoping mechanism configuration is reasonable, can realize larger displacement output, simultaneously can improvement project as required, it is achieved the output displacement of bigger multiple amplifies, it is achieved method is simply effective。
4, by adopting carbon fibre of composite material and part configuration light-weight design, whole mechanism lighter weight, spacecraft demand is met。
Accompanying drawing explanation
By reading detailed description non-limiting example made with reference to the following drawings, the other features, objects and advantages of the present invention will become more apparent upon:
Fig. 1, Fig. 2 are the schematic diagrams of the spacecraft large-scale orthoscopic expansion driving mechanism of the present invention；
Fig. 3, Fig. 4 be the present invention the large-scale orthoscopic of spacecraft launch driving mechanism elongation a certain amount of after schematic diagram；
Fig. 5 is the functional realiey basic flow sheet of the spacecraft large-scale orthoscopic expansion driving mechanism of the present invention。
In figure:
1-stringer telescoping mechanism；
2-planetary reduction gear motor；
3-unit screw component；
4-screw rod bracket；
5-chassis, chassis is for being connected with celestial body；
The 6-seat of honour, the seat of honour is used for output displacement；
7-upper arm；
Arm in 8-；
9-drives arm；
10-screw mandrel connection dish；
11-underarm；
12-linking arm。
Detailed description of the invention
Below in conjunction with specific embodiment, the present invention is described in detail。Following example will assist in those skilled in the art and are further appreciated by the present invention, but do not limit the present invention in any form。It should be pointed out that, to those skilled in the art, without departing from the inventive concept of the premise, it is also possible to make some deformation and improvement。These broadly fall into protection scope of the present invention。
In an embodiment of invention, the large-scale orthoscopic expansion driving mechanism being applied to spacecraft is mainly made up of motor lead screw assembly and stringer telescoping mechanism two parts。Rotated by the screw mandrel of planetary reduction gear motor task driven motor lead screw assembly, be dynamically connected arm by connecting dribbling as the screw mandrel of leading screw adaptor and drive arm movement output straight-line displacement。The power source of described motor lead screw assembly is planetary reduction gear motor, it is achieved controllable rotary stably exports, and by motor lead screw assembly, electric machine rotation is converted into reliable straight-line displacement output。
The leading screw connection dish of described stringer telescoping mechanism connects stringer telescoping mechanism, and wherein stringer telescoping mechanism is positioned at two galianconism middle joint with the link of motor lead screw assembly, it is ensured that joint is consistent with lead screw assembly output displacement。Described stringer telescoping mechanism, adopt diamond architected, as shown in Figure 2, stringer telescoping mechanism is divided into 5 rhombuses of the same size, another driving arm constitutes a little rhombus with underarm, driving shoulder joint to move up and down when leading screw connection dribbling is dynamic, straight-line displacement is amplified and is determined by the number of the ratio of little rhombus and big rhombus and big rhombus altogether。If little rhombus and big rhombus side ratio are 1:4, have 5 big rhombuses, then will be exaggerated 4 × 5(=20 from the straight-line displacement of motor lead screw assembly output) times, thus realizing the output of big distance linear displacement。
Large-scale orthoscopic of the present invention launches the related art features of driving mechanism:
1. the present invention adopts planetary reduction gear motor to be power source, can realize electric machine rotation according to control instruction, ensure that relatively low rotating speed, bigger driving moment simultaneously, it is achieved output motor process is steadily reliable。
2. planetary reduction gear motor is installed on leading screw housing end, and motor output end is connected with leading screw termination by shaft coupling, thus electric machine rotation is converted into the rectilinear motion of reliable leading screw connection dish。
3. leading screw housing relies on leading screw support to support, and spindle motor assembly and stringer telescoping mechanism are mounted on chassis simultaneously, are connected with celestial body by chassis, have good assembly performance。
4. can significantly expand output displacement by stringer telescoping mechanism appropriate design, it may be achieved tens times of expansions of guide screw movement stroke, it is achieved the orthoscopic displacement output of big distance。
5. stringer telescoping mechanism adopts diamond-shaped configuration, has stronger deformability, it is ensured that when shrinking, envelope is less has met satellite envelope requirement, away from celestial body to meet functional requirement after launching to put in place。
6. leading screw connection dish is connected with galianconism joint, and what directly drive is the little rhombus of galianconism and underarm composition, and little rhombus is nested with big rhombus (underarm and middle arm are constituted) simultaneously, thus amplifying output displacement, this amplification ratio is two rhombus side ratios。On the basis that leading screw power output is sized for, side ratio can be changed, thus increasing output displacement。
7. underarm, middle arm, upper arm constitute 5 rhombuses of the same size, and each diamonding is consistent, thus again being amplified by output displacement。This amplification ratio is the number of the big rhombus that arm is constituted。Can as required, by increase arm, thus increasing the number of rhombus, it is achieved increase output displacement purpose。
8. the mechanism of the present invention adopts light-weight design in a large number, and leading screw support adopts lightening core design, and arm upper section is hollow order font, meets light-weight design on the basis of satisfied cooperation demand。Meanwhile, all process with carbon fibre material including leading screw, leading screw support, arm etc., not only meet detail rigidity strength condition but also can significantly alleviate quality。Light-weight design has well adapted to the demand of space flight。
9. each cradle head place adopts and is spirally connected, it is ensured that connect reliable and stable。Little for ensureing cradle head friction, rotating flexibly, the friction pad having material to be polytetrafluoroethylene (PTFE) between securing member and arm jointing is to reduce friction, and cradle head mating part is the face of cylinder and arc surface simultaneously, change face contact for linear contact lay, be substantially reduced frictional force。
Above specific embodiments of the invention are described。It is to be appreciated that the invention is not limited in above-mentioned particular implementation, those skilled in the art can make various deformation or amendment within the scope of the claims, and this has no effect on the flesh and blood of the present invention。
Claims (6)
1. the large-scale orthoscopic being applied to spacecraft launches driving mechanism, it is characterized in that, including planetary reduction gear motor, motor lead screw assembly, stringer telescoping mechanism, wherein, planetary reduction gear step motor drive motor lead screw assembly, the electric machine rotation of planetary reduction gear motor is converted into straight-line displacement and exports to stringer telescoping mechanism by motor lead screw assembly, to control the flexible of stringer telescoping mechanism；
Also include base, the seat of honour, stringer telescoping mechanism includes the multiple diamond structures being sequentially connected with driving arm and being mainly made up of linking arm, wherein, two linking arms of stringer telescoping mechanism lower end are underarm, underarm is articulated with base, being connected between dish at two underarms with the screw mandrel of motor lead screw assembly and be connected to driving arm, the upper end of stringer telescoping mechanism is provided with the seat of honour；
The linking arm being connected with underarm is middle arm, and middle arm constitutes big rhombus with underarm, drives arm to constitute little rhombus with underarm, and big rhombus is nested with little rhombus, thus amplifying output displacement, amplification ratio is big rhombus and little rhombus side ratio。
2. the large-scale orthoscopic being applied to spacecraft according to claim 1 launches driving mechanism, it is characterised in that stringer telescoping mechanism about motor lead screw assembly straight-line displacement outbound course axisymmetricly。
3. the large-scale orthoscopic being applied to spacecraft according to claim 1 launches driving mechanism, it is characterised in that the quantity of diamond structure is 5。
4. the large-scale orthoscopic being applied to spacecraft according to claim 1 launches driving mechanism, it is characterised in that drive arm to be connected to the middle part of underarm。
5. the large-scale orthoscopic being applied to spacecraft according to claim 1 launches driving mechanism, it is characterised in that the cross section of linking arm is hollow order font。
6. the large-scale orthoscopic being applied to spacecraft according to claim 1 launches driving mechanism, it is characterised in that the deformation between each diamond structure is consistent。
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| Application Number | Priority Date | Filing Date | Title |
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| CN201310345368.7A CN103457403B (en) | 2013-08-08 | 2013-08-08 | The large-scale orthoscopic being applied to spacecraft launches driving mechanism |
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| CN201310345368.7A CN103457403B (en) | 2013-08-08 | 2013-08-08 | The large-scale orthoscopic being applied to spacecraft launches driving mechanism |
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| CN103457403A CN103457403A (en) | 2013-12-18 |
| CN103457403B true CN103457403B (en) | 2016-06-22 |
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Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103982615B (en) * | 2014-05-12 | 2016-08-24 | 中国航空工业集团公司沈阳飞机设计研究所 | A kind of driven by energy conversion method |
| CN109050979B (en) * | 2018-07-20 | 2021-08-17 | 广西大学 | Shear type folding and unfolding unit rigid hinge connection large-space unfoldable mechanism |
| CN109546282A (en) * | 2018-12-17 | 2019-03-29 | 西北工业大学 | A kind of truss-like space antenna extending arm |
| CN113211488B (en) * | 2020-02-04 | 2022-07-29 | 广东博智林机器人有限公司 | Gripping device |
| CN111168713B (en) * | 2020-02-17 | 2021-10-08 | 广东博智林机器人有限公司 | Electromagnetic propulsion mechanism and clamping device |
| CN114130611A (en) * | 2021-12-03 | 2022-03-04 | 浙江理工大学 | Dual piezoelectric injection dispensing valve based on four-bar amplification mechanism and adhesive injection method thereof |
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| CN2772107Y (en) * | 2005-03-09 | 2006-04-12 | 上海华铭智能终端设备有限公司 | Motor-driven screw-nut pair lifting mechanism |
| CN102616388A (en) * | 2011-06-08 | 2012-08-01 | 清华大学 | Solar cell array unfolding device capable of being unfolded in large area |
| CN103234110A (en) * | 2013-04-26 | 2013-08-07 | 上海交通大学 | Variable geometry truss driving rod for octahedral truss unit |
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2013
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Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2772107Y (en) * | 2005-03-09 | 2006-04-12 | 上海华铭智能终端设备有限公司 | Motor-driven screw-nut pair lifting mechanism |
| CN102616388A (en) * | 2011-06-08 | 2012-08-01 | 清华大学 | Solar cell array unfolding device capable of being unfolded in large area |
| CN103234110A (en) * | 2013-04-26 | 2013-08-07 | 上海交通大学 | Variable geometry truss driving rod for octahedral truss unit |
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| CN103457403A (en) | 2013-12-18 |
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