CN102539095A - High-frequency anti-water-leakage satellite vibration test clamp for large interface expanding - Google Patents
High-frequency anti-water-leakage satellite vibration test clamp for large interface expanding Download PDFInfo
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- CN102539095A CN102539095A CN2011103624287A CN201110362428A CN102539095A CN 102539095 A CN102539095 A CN 102539095A CN 2011103624287 A CN2011103624287 A CN 2011103624287A CN 201110362428 A CN201110362428 A CN 201110362428A CN 102539095 A CN102539095 A CN 102539095A
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Abstract
A high-frequency anti-water-leakage satellite vibration test clamp (1) for large interface expanding is mainly used for expanding the interface size of phi 990mm of a vibration platform to be more than double so as to adapt to installation of a large interface of more than phi 2000mm of a satellite, and is capable of preventing the vibration platform from being damaged by water leakage of a satellite water tank. Furthermore, the high-frequency anti-water-leakage satellite vibration test clamp can meet the requirements of a satellite high-frequency vibration test when first-order resonance frequency of the clamp reaches more than 200Hz. Under the condition that the height and the quality are controlled, the clamp expands the original interface (2) of phi 990mm to be more than double and enables the interface to be an interface (3) of phi 2100mm in a mode that the number of lightening holes of an entity is increased or decreased, high rigidity and frequency are ensured, and the defects that the height cannot be reduced due to a rib plate type clamp without a large expanded interface and accordingly the frequency and the rigidity are remarkably reduced are overcome. A top inclined plane (4) of the clamp inclines from the center to an edge lightening hole and is combined with an edge slant lightening hole (5), a central blind hole type lightening hole (6) and a flow guide groove (7) to enable water leaked from the satellite water tank to flow along the top inclined plane and to be led out of a vibration platform range through the gradient of the edge lightening hole, thereby protecting and preventing vibration platform from being damaged by leaked water and removing complicated work of waterproof cover paving on the clamp due to the fact that an original clamp aims at protecting the vibration platform. The high-frequency anti-water-leakage satellite vibration test clamp for the large interface expanding has the advantages of being low in manufacture cost, excellent in performance, convenient and visual in use, strong in adaptability and generality and the like.
Description
Technical field
The present invention relates to a kind of vibration test fixture, the anti-satellite vibration test fixture that leaks of particularly a kind of high frequency of big interface expansion.
Background technology
The satellite vibration test fixture mainly plays satellite is fixed on the also effect of transmitting vibrations power on the shaking table; For fear of of the influence of anchor clamps self-characteristic to vibration test; The first order resonance frequency of general provision anchor clamps should be higher than test highest frequency point, perhaps greater than more than 3 times of satellite fundamental frequency.The version of anchor clamps can be divided into two types at present, solid type and reinforcing plate type, and the former is the most frequently used version, is applicable to that the interface expansion is little, does not have the situation of requirement for height, the latter is applicable to big interface expansion usually, needs the situation of higher anchor clamps height.Anchor clamps are in order to satisfy the requirement of frequency, and are general all with in the scope that highly is controlled at 600mm, concerning the anchor clamps that are used for the above large vibration table of 100KN; Its scale has reached the category of large-scale jig; When highly greater than 500mm, still occur like anchor clamps with solid type, then its quality will be quite big; Can consume in test the thrust of shaking table excessively, cause probably because of the not enough situation about can't test of thrust.In order to address this problem, most of height have all adopted the structure of reinforcing plate type greater than the anchor clamps of 500mm, and this structure can effectively reduce the quality of anchor clamps, but in particular cases cannot say for sure to demonstrate,prove the frequency of anchor clamps at some.These two types of anchor clamps forms all have relative merits separately, and its use occasion does not have fairly obvious separatrix, need judge and choose according to actual conditions.
At present doubly expand the formula large-scale jig, generally all adopt the reinforcing plate type structure in order to reduce the anchor clamps quality to what for example φ 990mm interface expanded to φ 2100mm interface.For as the described large-scale jig of last example and need the interface expansion situation more than a times, the reinforcing plate type structure makes excessive height probably, thereby significantly reduces the rigidity and the frequency of anchor clamps, influences test effect.In addition; Present most of satellite all need carry out the vibration test of topping up state; Common practices all is through establishing the bucker infringement to shaking table that prevents to leak on the anchor clamps upper berth, but the method exists and lay bucker and waste time and energy, and security and the not high problem of reliability.
Summary of the invention
In order to solve existing reinforcing plate type large-scale vibrating test fixture can't reduce height, improve frequency under the situation of interface expansion more than one times defective; And optimize anchor clamps and prevent the mode of leaking; Make it easier, safer, the invention provides a kind of big interface expansion, high frequency, the anti-vibration test fixture that leaks.Utilize the present invention, in big interface expansion, can control height, assurance frequency, and make the anti-mode safety of leaking of anchor clamps, reliably, need not manual operation.
The technical scheme that the present invention is adopted for its technical matters of solution is:
The anti-satellite vibration test fixture that leaks of a kind of high frequency of big interface expansion, it is characterized in that: said test fixture is a truncated cone-shaped, the diameter of its upper bottom portion is φ 2100mm; The diameter of lower bottom part is φ 990mm, offers circular trough in the bottom of said round platform to said circular interior, and the bottom of said circular trough is the inclined-plane, top 4 of said anchor clamps; Open 8 oblique lightening holes 5 in edge on inclined-plane, said top to the inclined-plane of said round platform, along circumferentially evenly distributing, the oblique lightening hole in said edge is the oblique through hole of φ 250mm to said 8 oblique lightening holes in edge on inclined-plane, said top; Tilt outside anchor clamps; The one of which end opening is positioned on the inclined-plane, said top 4, and other end opening is positioned on the periphery inclined-plane of said round platform, its center line with vertical be 10 °-15 ° to angle; The gradient on inclined-plane, said top 4 is tilted by the oblique lightening hole 5 in middle mind-set edge; 9 central blind hole formula lightening holes 6 also are set on said test fixture, and this central blind hole formula lightening hole 6 is begun by the following round platform of test fixture bottom, and the 7mm-10mm distance finishes on inclined-plane, separating test anchor clamps top; Wherein 8 central blind hole formula lightening holes 6 are along circumferentially evenly distributing; Diameter phi 150mm, 1 central blind hole formula lightening hole 6 is positioned at the center of said test fixture, the spigot shaft coaxle of its central shaft and test fixture; And said 8 central blind hole formula lightening holes 6 are positioned at the inner radial of 8 oblique lightening holes in edge, around 1 the central blind hole formula lightening hole that is positioned at the center; Between the oblique lightening hole 5 in said a plurality of edges, diversion trench 7 is set; Said diversion trench is positioned on the inclined-plane, said top 4; Be communicated with the oblique lightening hole 5 in each edge; At the end face of the circular cell wall at said test fixture top along a plurality of tops φ 2100mm interface 3 circumferentially is set; In said clamp base a plurality of bottoms φ 990mm interface 2 is set, along a plurality of countersunk head through holes of a circle circumferentially are set, the edge circumferentially is provided with a plurality of countersunk head through holes of 2 circles between said 8 central blind hole formula lightening holes and 1 central blind hole formula lightening hole at the center between 8 central blind hole formula lightening holes of said oblique lightening hole 5 and circumferentially distribution; Said countersunk head through hole connects the upper and lower surfaces of said test fixture, and said a plurality of bottom fittings are communicated with said a plurality of countersunk head through holes.
The height of described test fixture and quality are respectively 450mm and 1180Kg.
The gradient on inclined-plane, said top 4 is 2 °-3 ° by the angle of inclination that the oblique lightening hole 5 in middle mind-set edge tilts.
Clamp structure is given up reinforcing plate type and is adopted solid type; And alleviate quality through 16 large-scale lightening holes on it, thus φ 990mm interface size expansion is reached φ 2100mm interface size more than one times after, this anchor clamps height is merely 450mm; Quality is 1180Kg; The 750mm of its aspect ratio reinforcing plate type design has reduced 300mm, and quality has increased 280Kg than the 900Kg of reinforcing plate type design, and the reduction of height directly makes its first order resonance frequency bring up to 338Hz by the 135Hz of reinforcing plate type; The increase of quality has only increased the weight of the thrust consumption of shaking table slightly, and does not far reach the thrust limit of shaking table.In addition, inclined design is adopted at the anchor clamps top, and its gradient is tilted 2 °-3 ° by middle mind-set edge lightening hole; The edge lightening hole adopts oblique design, is made up of 8 oblique through holes of φ 250mm, and lightening hole is tilt outside anchor clamps, its center line with vertical be 10 °-15 ° to angle, connect through diversion trench between each hole; The center lightening hole adopts the blind-hole type design, is made up of 8 φ 150mm blind holes, and this blind hole is begun by clamp base, in the 7mm-10mm distance end from the anchor clamps top.Current can be outside inclined-plane, top and the gradient guiding shaking table scope via the edge lightening hole when the oblique lightening hole of inclined-plane, anchor clamps top jointing edge, refluence groove and central blind hole formula lightening hole made the satellite radiator leak; And because the center lightening hole is a blind hole; Drainage can not take place; Diversion trench has played the effect of water conservancy diversion, makes the water that spills can not hoard the edge in anchor clamps, thereby the protection shaking table can be not impaired because of water inlet.
The invention has the beneficial effects as follows: solved existing reinforcing plate type large-scale vibrating test fixture can't reduce height, improve frequency under the situation of interface expansion more than one times defective.Under the situation that the anchor clamps quality increases slightly, significantly reduced the height of anchor clamps, improved frequency, expanded the efficiency test frequency range of satellite.In addition, the anti-design of leaking of the anchor clamps of increase makes congenitally under its situation that does not need manual operation just to have possessed the leakproof water function, has improved work efficiency and security in testing greatly.
Description of drawings
Fig. 1 is the synoptic diagram of the anti-satellite vibration test fixture that leaks of high frequency of the big interface expansion of the present invention;
Fig. 2 is the cut-open view of the anti-satellite vibration test fixture that leaks of high frequency of the big interface expansion of the present invention;
Wherein: 1. vibration test fixture, 2. φ 990mm interface, 3. φ 2100mm interface, 4. inclined-plane, top, the 5. oblique lightening hole in edge, 6. central blind hole formula lightening hole, 7. diversion trench.
Embodiment
Referring to Fig. 1 and Fig. 2; The anti-satellite vibration test fixture that leaks of the high frequency of big interface expansion of the present invention is the entity round platform that adds lightening hole, and diameter of round platform is φ 2100mm on it, and the diameter of following round platform is φ 990mm; Bottom at said round platform is provided with circular trough to said circular interior; The bottom of said circular trough is the inclined-plane, top 4 of said anchor clamps, opens 8 oblique lightening holes 5 in edge on inclined-plane, said top to the inclined-plane of said round platform, and the oblique lightening hole in said a plurality of edges evenly distributes along circumferential on inclined-plane, said top; The oblique lightening hole in said edge is the oblique through hole of φ 250mm; Tilt outside anchor clamps, one of which end opening are positioned on the inclined-plane, said top 4, and other end opening is positioned on the said round platform inclined-plane; Its center line with vertical be 10 °-15 ° to angle, the gradient on inclined-plane, said top is tilted 2 °-3 ° by the oblique lightening hole in middle mind-set edge 5.9 central blind hole formula lightening holes 6 also are set on said test fixture; This blind hole is begun by the following round platform of clamp base; In the 7mm-10mm distance end from inclined-plane, anchor clamps top, wherein 8 central blind hole formula lightening holes 6 are along circumferentially evenly distributing diameter phi 150mm; 1 central blind hole formula lightening hole 6 is positioned at the center of said test fixture; The spigot shaft coaxle of its central shaft and test fixture, and said 8 central blind hole formula lightening holes 6 are positioned at the inner radial of 8 oblique lightening holes in edge, round 1 the central blind hole formula lightening hole that is positioned at the center; Between the oblique lightening hole 5 in said a plurality of edges, diversion trench 7 is set, said diversion trench connects as one the oblique lightening hole 5 in each edge.A plurality of tops φ 2100mm interface 3 circumferentially is set in the circular cell wall upper edge at said anchor clamps top, a plurality of bottoms φ 990mm interface 2 is set in said clamp base.Along a plurality of countersunk head through holes of a circle circumferentially are set, the edge circumferentially is provided with a plurality of countersunk head through holes of 2 circles between said 8 central blind hole formula lightening holes and 1 central blind hole formula lightening hole at the center between 8 central blind hole formula lightening holes of said oblique lightening hole 5 and circumferentially distribution.Said a plurality of bottom fitting is communicated with said a plurality of countersunk head through holes.
Satellite is when carrying out vibration test, and vibration test fixture 1 is installed on the shaking table through bottom φ 990mm interface 2, and passing of satelline anchor clamps top φ 2100mm interface 3 is installed on the vibration test fixture 1.Clamp structure adopts entity to add to alleviate well format, and making its limitation in height is 450mm, and quality limitations is 1180Kg, and first order resonance frequency has significantly expanded the upper frequency limit of satellite vibration test up to 338Hz.
Current can be outside inclined-plane, top 4 and the gradient guiding shaking table scope via the oblique lightening hole 5 in edge when the oblique lightening hole of inclined-plane, anchor clamps top 4 jointing edges 5, diversion trench 7 and central blind hole formula lightening hole 6 made the satellite radiator leak; And because the sealing role of central blind hole formula lightening hole 6; Drainage can not take place; Diversion trench 7 has played the effect of water conservancy diversion, makes the water that spills can not hoard the edge in anchor clamps, thereby the protection shaking table can be not impaired because of water inlet.
In sum; The big interface expansion of the present invention, high frequency, the anti-vibration test fixture that leaks; Can under the situation of large-scale jig interface expansion more than one times, limit its height, improve first order resonance frequency; And its congenital leakproof water function that just possesses need not manual operation, has improved convenience, security and reliability greatly.
Claims (3)
1. the anti-satellite vibration test fixture that leaks of the high frequency of one kind big interface expansion, it is characterized in that: said test fixture is a truncated cone-shaped, the diameter of its upper bottom portion is φ 2100mm; The diameter of lower bottom part is φ 990mm, offers circular trough in the bottom of said round platform to said circular interior, and the bottom of said circular trough is the inclined-plane, top (4) of said anchor clamps; Open 8 oblique lightening holes in edge (5) on inclined-plane, said top to the inclined-plane of said round platform, along circumferentially evenly distributing, the oblique lightening hole in said edge is the oblique through hole of φ 250mm to said 8 oblique lightening holes in edge on inclined-plane, said top; Tilt outside anchor clamps; The one of which end opening is positioned on the inclined-plane, said top (4), and other end opening is positioned on the periphery inclined-plane of said round platform, its center line with vertical be 10 °-15 ° to angle; The gradient on inclined-plane, said top (4) is tilted by the oblique lightening hole in middle mind-set edge (5); 9 central blind hole formula lightening holes (6) also are set on said test fixture, and this central blind hole formula lightening hole (6) is begun by the following round platform of test fixture bottom, and the 7mm-10mm distance finishes on inclined-plane, separating test anchor clamps top; Wherein 8 central blind hole formula lightening holes (6) are along circumferentially evenly distributing; Diameter phi 150mm, 1 central blind hole formula lightening hole (6) is positioned at the center of said test fixture, the spigot shaft coaxle of its central shaft and test fixture; And said 8 central blind hole formula lightening holes (6) are positioned at the inner radial of 8 oblique lightening holes in edge, around 1 the central blind hole formula lightening hole that is positioned at the center; Diversion trench (7) is set between the oblique lightening holes in said a plurality of edges (5); Said diversion trench is positioned on the inclined-plane, said top (4); Be communicated with the oblique lightening hole in each edge (5); At the end face of the circular cell wall at said test fixture top along a plurality of top φ 2100mm interfaces (3) circumferentially are set; In said clamp base a plurality of bottom φ 990mm interfaces (2) are set, along a plurality of countersunk head through holes of a circle circumferentially are set, the edge circumferentially is provided with a plurality of countersunk head through holes of 2 circles between said 8 central blind hole formula lightening holes and 1 central blind hole formula lightening hole at the center between (8) individual central blind hole formula lightening hole of said oblique lightening hole (5) and circumferentially distribution; Said countersunk head through hole connects the upper and lower surfaces of said test fixture, and said a plurality of bottom fittings are communicated with said a plurality of countersunk head through holes.
2. the anti-satellite vibration test fixture that leaks of the high frequency of big interface expansion as claimed in claim 1, it is characterized in that: the height of described test fixture and quality are respectively 450mm and 1180Kg.
3. the anti-satellite vibration test fixture that leaks of the high frequency of big interface expansion as claimed in claim 1, it is characterized in that: the gradient on inclined-plane, said top (4) is 2 °-3 ° by the angle of inclination that the oblique lightening hole in middle mind-set edge (5) tilts.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201110362428.7A CN102539095B (en) | 2011-11-15 | 2011-11-15 | High-frequency anti-water-leakage satellite vibration test clamp for large interface expanding |
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| CN201110362428.7A CN102539095B (en) | 2011-11-15 | 2011-11-15 | High-frequency anti-water-leakage satellite vibration test clamp for large interface expanding |
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| CN102539095A true CN102539095A (en) | 2012-07-04 |
| CN102539095B CN102539095B (en) | 2014-06-25 |
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Cited By (6)
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| CN103048104A (en) * | 2012-12-06 | 2013-04-17 | 上海裕达实业公司 | Ground vibration test fixture for large-scale spacecraft |
| CN104062088A (en) * | 2014-06-05 | 2014-09-24 | 上海卫星装备研究所 | Light-weight and high-rigidity extended header for vibration test of spacecraft and vibration platform |
| CN104708550A (en) * | 2014-12-05 | 2015-06-17 | 上海卫星装备研究所 | Multipurpose satellite mechanics test fixture |
| CN106289687A (en) * | 2015-06-23 | 2017-01-04 | 北京强度环境研究所 | A kind of electric vibration table general switching vibration test fixture |
| CN106441767A (en) * | 2016-12-07 | 2017-02-22 | 上海卫星装备研究所 | Ground vibration testing clamp for large spacecraft vibration |
| CN106596010A (en) * | 2016-11-09 | 2017-04-26 | 上海卫星装备研究所 | Ground vibration test clamp used for large-scale spacecraft |
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103048104A (en) * | 2012-12-06 | 2013-04-17 | 上海裕达实业公司 | Ground vibration test fixture for large-scale spacecraft |
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| CN104708550A (en) * | 2014-12-05 | 2015-06-17 | 上海卫星装备研究所 | Multipurpose satellite mechanics test fixture |
| CN106289687A (en) * | 2015-06-23 | 2017-01-04 | 北京强度环境研究所 | A kind of electric vibration table general switching vibration test fixture |
| CN106596010A (en) * | 2016-11-09 | 2017-04-26 | 上海卫星装备研究所 | Ground vibration test clamp used for large-scale spacecraft |
| CN106596010B (en) * | 2016-11-09 | 2019-08-02 | 上海卫星装备研究所 | One kind being used for large space aircraft ground vibration test fixture |
| CN106441767A (en) * | 2016-12-07 | 2017-02-22 | 上海卫星装备研究所 | Ground vibration testing clamp for large spacecraft vibration |
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| CN102539095B (en) | 2014-06-25 |
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