CN103185099B - Wire-connected multi-ring vibration-isolating device applicable to spacecraft - Google Patents
Wire-connected multi-ring vibration-isolating device applicable to spacecraft Download PDFInfo
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- CN103185099B CN103185099B CN201310068327.8A CN201310068327A CN103185099B CN 103185099 B CN103185099 B CN 103185099B CN 201310068327 A CN201310068327 A CN 201310068327A CN 103185099 B CN103185099 B CN 103185099B
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- inner ring
- outer shroud
- memory alloy
- silk
- connecting nail
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Abstract
The invention provides a wire-connected multi-ring vibration-isolating device applicable to a spacecraft. The wire-connected multi-ring vibration-isolating device applicable to the spacecraft comprises nuts, an outer ring, connecting nails, one or more inner rings and memory alloy pins, wherein the memory alloy pins are made of memory alloy; the extension and contraction of the memory alloy pins are controlled by temperature control measures; if only one inner ring is provided , the outer ring and the inner rings are concentrically connected together through the connecting nails and the memory alloy pins; if more than one inner ring is provided and the outer ring and the inner rings are concentric, the outer ring and the inner ring adjacent to the outer ring are connected together through the connecting nails and the memory alloy pins and the inner rings are connected together through the connecting nails; and if the outer ring and the inner rings are not concentric, the outer ring and each inner ring are connected together through the connecting nails and the memory alloy pins and the inner rings are connected together through the connecting nails. The wire-connected multi-ring vibration-isolating device applicable to the spacecraft can meet a requirement on the connecting rigidity between the inner rings and the outer ring in a zero-gravity environment and can achieve a stable vibration-isolating purpose.
Description
Technical field
The present invention relates to a kind of isolation mounting, be specifically related to a kind of silk being applicable to astrovehicle and connect many rings isolation mounting, belong to astrovehicle vibration isolation technique field.
Background technique
Along with the development of high-resolution earth observation satellite technology and the sky-based laser communication technology, the highi degree of accuracy useful load on satellite as high resolution camera, laser communication terminal etc. for astrovehicle in orbit time micro-vibration more and more responsive.This vibrates generally because the dynamic unbalance in the work such as driving mechanism, attitude-control device causes slightly, and it can cause useful load service behaviour significantly to decline usually, even causes useful load total failure time serious.Therefore, in order to ensure the stable operation of useful load, isolation mounting need be installed additional between useful load and celestial body or between vibration source and celestial body.Common isolation mounting comprises viscous fluids isolation mounting, electromagnetism isolation mounting and viscoelasticity isolation mounting etc., these isolation mountings are often higher to the required precision of shape and position in course of working, composition more complicated, therefore, development cost is higher, and generally needs to use the object that just can reach vibration isolation in groups by several isolation mounting.
Summary of the invention
In view of this, the invention provides a kind of silk being applicable to astrovehicle and connect many rings isolation mounting, useful load or the isolating technique between vibration source and astrovehicle body on astrovehicle can be applicable to, its structure composition is simple, assembly manipulation convenience, stable performance, silk that reliability is high connect many rings isolation mounting, can be used for astrovehicle vibration isolation in-orbit.
A kind of silk being applicable to astrovehicle connects many rings isolation mounting, this isolation mounting comprises nut, outer shroud, connecting nail, one or more inner ring and memory alloy pin, outer shroud and inner ring are circumferentially evenly equipped with the circular hole of more than six or six, and outer shroud is circumferentially distributed with one or more layers of pin-and-hole, every layer of pin-and-hole is more than three or three; Connecting nail comprises ailhead, silk material and nail tail, is linked together between ailhead and nail tail by silk material, and the outer surface of nail tail is screw thread; Memory alloy pin is made up of memory alloy material, is controlled elongation and the shortening of memory alloy pin by temperature control measures;
Installation relation: if inner ring is one, then between outer shroud with inner ring by connecting nail with memory alloy pin is concentric links together, outer shroud is relative with the circular hole position in inner ring, the silk material of connecting nail passes the circular hole of outer shroud and inner ring, and ailhead conflict is engaged on the inner headed face of inner ring, nail tail through outer shroud circular hole and with the nut screw connection on outer shroud periphery, memory alloy pin is along the pin-and-hole radially across outer shroud of outer shroud, and the head of memory alloy pin is conflicted with the periphery of outer shroud and is coordinated, the fit depressions of corresponding position on the afterbody of memory alloy pin and inner ring periphery,
If inner ring is more than one, and if outer shroud and inner ring are with one heart, linked together by connecting nail and memory alloy pin between the inner ring that namely outer shroud is adjacent with outer shroud, linked together by connecting nail between each inner ring; If outer shroud and inner ring decentraction, namely linked together by connecting nail and memory alloy pin between outer shroud and each inner ring, linked together by connecting nail between inner ring.
Described outer shroud and inner ring are ring, polygonal or cross form structure.
Silk material in described connecting nail adopts wire or nonmetal wire, and adopts independently silk or the multiple thread strands that is intertwined by multi-filament.
The ailhead of described adjacent connecting nail or nail tail are fixed on same point, i.e. angled between the silk material of adjacent connecting nail.
Beneficial effect:
(1) inner ring of the present invention is connected with adopting silk material between outer shroud, by the tension force of adjustment silk material, the coupling stiffness requirement between inside and outside ring under zero-g environment can be ensured, effectively can weaken the propagation of vibration wave between inner ring and outer shroud again, and then realize stable vibration isolation target.
(2) connecting nail of the present invention is made up of ailhead, silk material, drive screw tail, and silk connects in many rings isolation mounting and comprises several independently connecting nails, each connecting nail can by controlling screwed tight moment, the conformity realizing a material tension force easily controls, and then realizes the adjustment of isolation mounting overall performance; And connecting nail is independent all mutually, namely the inefficacy of single connecting nail can not cause the anti-vibration performance notable change of whole isolation mounting, and therefore reliability is high.
(3) the present invention passes through elongation, the contraction of memory alloy taper pin, realizes the locking and unlocking between inner ring and outer shroud, thus overload when bearing transmitter section by taper pin or become rail, realize vibration isolation when normally flying in-orbit by silk material.
Accompanying drawing explanation
Fig. 1 is the overall structure figure that silk of the present invention connects many rings isolation mounting.
Fig. 2 is the structural drawing of connecting nail of the present invention.
Fig. 3 is the installation sectional view that silk of the present invention connects many rings isolation mounting memory alloy pin.
Fig. 4 is the installation sectional view that in the present invention, silk connects the two-layer connecting nail of many rings isolation mounting.
Fig. 5 is the structural drawing of decentraction many rings isolation mounting in the present invention.
Fig. 6 is other setting types that in the present invention, silk connects many rings isolation mounting connecting nail.
Wherein, 1-nut, 2-outer shroud, 3-connecting nail, 4-inner ring, 5-memory alloy pin, 6-ailhead, 7-silk material, 8-follows closely tail
Embodiment
To develop simultaneously embodiment below in conjunction with accompanying drawing, describe the present invention.
As shown in Figure 1, the invention provides a kind of silk being applicable to astrovehicle and connect many rings isolation mounting, this isolation mounting comprises nut 1, outer shroud 2, connecting nail 3, inner ring 4 and memory alloy pin 5, its outer-loop 2 and inner ring 4 are cirque structure, all coaxial mounting flange on both end faces, the mounting flange of outer shroud 2 is used for the connection between isolation mounting and spacecraft structure body, the mounting flange of inner ring 4 is for the connection between isolation mounting and useful load or vibration source, outer shroud 2 and inner ring 4 have been uniformly distributed circumferentially 36 circular holes, for the connection with connecting nail 3, and outer shroud 2 is circumferentially also evenly distributed with four pin-and-holes, memory alloy pin 5 is made up of memory alloy material, and it is divided into extends and shortens two states, and the state being realized memory alloy pin 5 by temperature control measures is controlled.
As shown in Figure 2, connecting nail 3 comprises ailhead 6, silk material 7 and nail tail 8, is linked together between ailhead 6 and nail tail 8 by silk material 7, and the outer surface of nail tail 8 is screw thread.
Integral installation relation: linked together with one heart by connecting nail 3 and memory alloy pin 5 between outer shroud 2 and inner ring 4, outer shroud 2 is relative with the circular hole position of inner ring 4, the silk material 7 of connecting nail 3 passes the circular hole of outer shroud 1 and inner ring 4, and ailhead 6 conflict is engaged on the inner headed face of inner ring 4, nail tail 8 through outer shroud 2 circular hole and with the nut screw connection on outer shroud 2 periphery, tighten or unscrew the tension force between conveniently adjusted inner ring 2 and outer shroud 4 by nut 1, memory alloy pin 5 is along the pin-and-hole radially across outer shroud 2 of outer shroud 2, and the head of memory alloy pin 5 is conflicted with the periphery of outer shroud 2 and is coordinated, the groove fit of corresponding position on the afterbody of memory alloy pin 5 and inner ring 4 periphery.
The temperature environment of memory alloy pin 5 is controlled when transmitter section or when becoming rail, memory alloy pin 5 is made to be in elongation state, the conical surface of its free end compresses the outer surface of inner ring 4, relative locking is realized by four memory alloy pins 5 between outer shroud 2 with inner ring 4, corresponding overload is born, as shown in Figure 3 by memory alloy pin 5.Live through transmitter section or become after the rail stage, the temperature environment of memory alloy pin 5 is changed by temperature control measures, it is made to be in shortening state, remove the locking between outer shroud 2 and inner ring 4, now, linked together by connecting nail 3 and nut 1 completely between outer shroud 2 and inner ring 4, vibration passing between outer shroud 2 and inner ring 4, only have and could realize through connecting nail 3, and most vibration cannot by the silk material 7 in connecting nail 3, therefore silk connects the effect that many rings isolation mounting serves vibration isolation.
It can be two concentric rings that silk in above-mentioned enforcement connects many rings isolation mounting, also can be multiple concentric ring, can also according to the needs of isolated subject, it is the ring of multiple decentraction, as shown in Figure 5, five isodiametric inner ring are evenly distributed on outer shroud inside, are linked together between outer shroud and inner ring by connecting nail and memory alloy pin, and also linked together by connecting nail between each inner ring, to improve vibration isolating effect further.
Silk in above-mentioned enforcement connects inner ring 2 or the outer shroud 4 of many rings isolation mounting, can be circular, also according to the demand of concrete mounting point, can be designed to polygonal.Inner ring 2 according to the requirement of the connection of vibration isolation object, support stiffness, can also be designed to the various shapes such as " well " font.
The connecting nail 3 that silk in above-mentioned enforcement connects many rings isolation mounting can be positioned at a plane, also can be positioned at two or more plane, and as shown in Figure 4, and the silk material 7 in connecting nail 3 can be wire, also can be nonmetal wire; Can be an independently silk, also can be the multiple thread strands be intertwined by multi-filament, and multiple thread strands by the friction in silk material stretching process between silk and silk, can consume vibrational energy further.
In above-described embodiment, connecting nail 3 arranges the form that can also adopt other, as shown in Figure 6, the ailhead 6 of two adjacent connecting nails 3 is fixed on same point, namely adjacent two rhizoid material 7 shapes are at a certain angle, by two rhizoid materials 7, same point is played to the effect of vibration isolation like this, vibration isolating effect can be improved further.
In sum, these are only preferred embodiment of the present invention, be not intended to limit protection scope of the present invention.Within the spirit and principles in the present invention all, any amendment done, equivalent replacement, improvement etc., all should be included within protection scope of the present invention.
Claims (4)
1. the silk being applicable to astrovehicle connects many rings isolation mounting, it is characterized in that, this isolation mounting comprises nut, outer shroud, connecting nail, more than one inner ring and memory alloy pin, outer shroud and inner ring are circumferentially evenly equipped with the circular hole of more than six, and outer shroud is circumferentially distributed with the pin-and-hole of more than one deck, every layer of pin-and-hole is more than three; Connecting nail comprises ailhead, silk material and nail tail, is linked together between ailhead and nail tail by silk material, and the outer surface of nail tail is screw thread; Memory alloy pin is made up of memory alloy material, is controlled elongation and the shortening of memory alloy pin by temperature control measures;
Installation relation: if inner ring is one, then between outer shroud with inner ring by connecting nail with memory alloy pin is concentric links together, outer shroud is relative with the circular hole position in inner ring, the silk material of connecting nail passes the circular hole of outer shroud and inner ring, and ailhead conflict is engaged on the inner headed face of inner ring, nail tail through outer shroud circular hole and with the nut screw connection on outer shroud periphery, memory alloy pin is along the pin-and-hole radially across outer shroud of outer shroud, and the head of memory alloy pin is conflicted with the periphery of outer shroud and is coordinated, the fit depressions of corresponding position on the afterbody of memory alloy pin and inner ring periphery,
If inner ring is two or more, and if outer shroud and inner ring are with one heart, linked together by connecting nail and memory alloy pin between the inner ring that namely outer shroud is adjacent with outer shroud, linked together by connecting nail between each inner ring; If outer shroud and inner ring decentraction, namely linked together by connecting nail and memory alloy pin between outer shroud and each inner ring, linked together by connecting nail between inner ring.
2. a kind of silk being applicable to astrovehicle connects many rings isolation mounting as claimed in claim 1, it is characterized in that, described outer shroud and inner ring are ring, polygonal or cross form structure.
3. a kind of silk being applicable to astrovehicle connects many rings isolation mounting as claimed in claim 1, it is characterized in that, silk material in described connecting nail adopts wire or nonmetal wire, and adopts independently silk or the multiple thread strands that is intertwined by multi-filament.
4. a kind of silk being applicable to astrovehicle connects many rings isolation mounting as claimed in claim 1, it is characterized in that, the ailhead of adjacent connecting nail or nail tail are fixed on same point, i.e. angled between the silk material of adjacent connecting nail.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310068327.8A CN103185099B (en) | 2013-03-04 | 2013-03-04 | Wire-connected multi-ring vibration-isolating device applicable to spacecraft |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310068327.8A CN103185099B (en) | 2013-03-04 | 2013-03-04 | Wire-connected multi-ring vibration-isolating device applicable to spacecraft |
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| Publication Number | Publication Date |
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| CN103185099A CN103185099A (en) | 2013-07-03 |
| CN103185099B true CN103185099B (en) | 2015-02-04 |
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| CN201310068327.8A Active CN103185099B (en) | 2013-03-04 | 2013-03-04 | Wire-connected multi-ring vibration-isolating device applicable to spacecraft |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN106995050B (en) * | 2017-04-14 | 2019-07-02 | 哈尔滨工业大学 | A kind of SMA actuator actively enhanced for Thin-Wall Cylindrical Shells dynamic stiffness |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101074573A (en) * | 2007-04-06 | 2007-11-21 | 大连理工大学 | Damper of multi-dimensional superelastic shape memory alloy |
| CN201416607Y (en) * | 2009-04-08 | 2010-03-03 | 大连理工大学 | Honeycomb shape memory alloy multi-dimensional vibration absorber |
| CN202099875U (en) * | 2011-05-18 | 2012-01-04 | 东南大学 | Shape memory alloy self-resetting multidimensional shock insulation support |
| CN102392497A (en) * | 2011-10-19 | 2012-03-28 | 沈阳建筑大学 | Multi-direction shape memory alloy, soft steel and lead combined drum-like damper |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US8053068B2 (en) * | 2007-03-29 | 2011-11-08 | Kazak Composites, Incorporated | Shape memory alloy composite material shock and vibration isolator devices |
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Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101074573A (en) * | 2007-04-06 | 2007-11-21 | 大连理工大学 | Damper of multi-dimensional superelastic shape memory alloy |
| CN201416607Y (en) * | 2009-04-08 | 2010-03-03 | 大连理工大学 | Honeycomb shape memory alloy multi-dimensional vibration absorber |
| CN202099875U (en) * | 2011-05-18 | 2012-01-04 | 东南大学 | Shape memory alloy self-resetting multidimensional shock insulation support |
| CN102392497A (en) * | 2011-10-19 | 2012-03-28 | 沈阳建筑大学 | Multi-direction shape memory alloy, soft steel and lead combined drum-like damper |
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