CN205392779U - Big quality testpieces installation device on vibration centrifuge - Google Patents
Big quality testpieces installation device on vibration centrifuge Download PDFInfo
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- CN205392779U CN205392779U CN201620171714.3U CN201620171714U CN205392779U CN 205392779 U CN205392779 U CN 205392779U CN 201620171714 U CN201620171714 U CN 201620171714U CN 205392779 U CN205392779 U CN 205392779U
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- testpieces
- hydrostatic bearing
- vibration table
- centrifuge
- auxiliary expanding
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Abstract
The utility model discloses a big quality testpieces installation device on vibration centrifuge, install the electric vibration table on vibration centrifuge's the rocking arm, the one end of testpieces is installed on the mesa of electric vibration table, supplementary extension platform is installed on the rocking arm, a supplementary side of expanding the platform each other is close to with one side facial features of testpieces just leaves the space, hydrostatic bearing installs in a side of supplementary extension platform, anchor clamps are installed in another opposite flank of hydrostatic bearing, a side -mounting of testpieces is on anchor clamps. The utility model discloses an adopt hydrostatic bearing and supplementary gravity or the centrifugal force that the mode that combines together comes load test spare to receive expanded, the testpieces is installed no longer totally on the mesa of electric vibration table, still can install on the rocking arm through anchor clamps, hydrostatic bearing, supplementary extension platform, has obviously improved the testpieces load -carrying ability, and the effective mass of messenger's testpieces and vibration centrifuge's bulk testing ability are being shown to be promoted.
Description
Technical field
This utility model relates to the testpieces erecting device on a kind of vibrating centrifuge, particularly relates to the big quality test part erecting device on a kind of vibrating centrifuge.
Background technology
Vibrating centrifuge is the advanced dynamics simulation study device being arranged on by electric vibration table on centrifuge pivoted arm, it be mainly used for apply wide band Random Vibration Load and quasistatic acceleration load to testpieces simultaneously, for simulating vibration-acceleration integrated environment suffered by high-speed aircraft.Typical vibrating centrifuge structural representation is as shown in Figure 1, main shaft 8 is installed in pedestal 7, centrifuge pivoted arm 4 is installed on the upper end of main shaft 8, one end of centrifuge pivoted arm 4 is provided with balancing weight 6, the other end of centrifuge pivoted arm 4 is provided with electric vibration table 3, testpieces 1 is installed on the table top 2 of electric vibration table 3, centrifuge pivoted arm 4 is positioned at the position above main shaft 8 and is provided with switch board 5.Traditional test method is oscillating load and acceleration load to be applied respectively, but research shows to adopt vibrating centrifuge that testpieces is applied combined load simultaneously it appeared that single environment tests the testpieces failure mode that cannot find.
Electric vibration table mounting means on centrifuge pivoted arm mainly has suitable arm and plumbing arm two kinds, as shown in Figure 2, when installing along arm mode, the axis direction of electric vibration table 3 is identical with the direction of centrifuge pivoted arm 4, as shown in Figure 3, when plumbing arm mode is installed, the axis direction of electric vibration table 3 is perpendicular to the rotational plane of centrifuge pivoted arm 4；Fig. 2 and Fig. 3 also show vibration table securing member 9, the table top 2 of electric vibration table 3 and testpieces 1.Under two ways, electric vibration table 3 all rigidly fixes with centrifuge pivoted arm 4 and is connected.
There are the following problems for above-mentioned conventional mounting structure:
As shown in Figure 2 and Figure 4, the upper and lower part of the moving-coil 11 in electric vibration table 3 is respectively arranged with an assembly guidance, namely goes up guider 12 and lower guider 10, and under normal upright working condition, upper guider is not subject to big transverse load；When testpieces 1 is arranged on vibrating centrifuge, actual installment state is that testpieces 1 is directly installed on the table top 2 of electric vibration table 3, the sole mass of testpieces 1, moving-coil 11 quality, and due to the additional tension stress (this is topmost additional force) of centrifugal acceleration generation, be intended to the guider within electric vibration table 3 or bearing undertakes；Along under arm and two kinds of installment states of plumbing arm, the stress of upper guider 12 is all severe than lower guider 10, and owing to centrifugal force is typically much deeper than gravity, therefore plumbing arm state is more severe than suitable arm state.Owing to the inner space of electric vibration table 3 is very limited, this brings great difficulty just to the design of guider or the bearing that need to carry, and especially near the upper guider 12 at table top 2 place, its stress is severe especially.Therefore the testpieces quality when effective mass of testpieces 1 is far below single vibration environment is caused.
From the design of existing large-scale vibrating centrifuge it can be seen that, no matter along arm mounting means or plumbing arm mounting means, testpieces is all directly installed on the table top of vibration table, the quality of testpieces self and huge acceleration load is intended to the guider within vibration table or bearing undertakes.But under existing testpieces mounting means, the structural design within vibration table closely, space very limited, therefore cannot at the very strong guider of vibration table indoor design.And for large-scale vibrating centrifuge, the quality of testpieces is often much larger than the quality of jigging platform moving coil, this can cause the duty of vibration table inner support bearing to deviate bigger with perfect condition, and then it being substantially reduced the bearing capacity of bearing, the effective mass ultimately resulting in testpieces is very restricted.
Such as, BeiJing, China's ambient intensity institute and China Physics Institute's system engineering institute cooperation, have developed First large-scale vibrating centrifuge, maximum testpieces quality 80kg in 2014, the maximum 100g of CENTRIFUGAL ACCELERATING measurement level, vibration level 10grms (is fully loaded with).What this equipment adopted is that namely the axis direction of vibration table is identical with centrifuge pivoted arm direction, and the table top of vibration table is positioned at the distalmost end of pivoted arm, and testpieces is directly installed on vibration table surface along arm mounting means.
For another example, the Environmental Test Laboratory of Britain nuclear weapon academy (AWE) has the vibrating centrifuge of diameter 8 meters, and what this equipment adopted is plumbing arm mounting means, and testpieces is directly installed on vibration table surface, and maximum testpieces quality only has several kilograms.ACTIDYNSYSTEMS company of France is world-famous vibrating centrifuge manufacturer, and the state-of-the-art V67-4H vibrating centrifuge of its development is capable of maximum carrying 120kg, overload 80g, vibration table thrust 48kN.Its vibration table is also adopt along arm mounting means, and testpieces is directly installed on the table top of vibration table.
This shows, no matter China or external, the technology of main flow be still only guider within vibration table or bearing to carry huge centrifugal action, the duty of vibration table inner support bearing is bigger with perfect condition deviation, and then it being substantially reduced the bearing capacity of bearing, the effective mass ultimately resulting in testpieces is very restricted.
Utility model content
The purpose of this utility model is that the big quality test part erecting device provided on a kind of vibrating centrifuge in order to solve the problems referred to above.
This utility model is achieved through the following technical solutions above-mentioned purpose:
A kind of big quality test part erecting device on vibrating centrifuge, the pivoted arm of described vibrating centrifuge is provided with electric vibration table, one end of described testpieces is installed on the table top of described electric vibration table, described big quality test part erecting device includes auxiliary expanding table, hydrostatic bearing and fixture, described auxiliary expanding table is installed on described pivoted arm, if described electric vibration table is install along arm, then one end of described auxiliary expanding table is installed on below described pivoted arm, below the above and described testpieces of the other end of described auxiliary expanding table close to each other and leave space, described hydrostatic bearing is installed on above described auxiliary expanding table, described fixture is installed on above described hydrostatic bearing, described testpieces is installed on above described fixture；Install if described electric vibration table is plumbing arm, then the lower end of described auxiliary expanding table is installed on the outer face of described pivoted arm, the medial surface of the upper end of described auxiliary expanding table is close to each other with a lateral surface of described testpieces and leaves space, described hydrostatic bearing is installed on the medial surface of described auxiliary expanding table, described fixture is installed on the medial surface of described hydrostatic bearing, and described testpieces is installed on the medial surface of described fixture.
In order to make the power that testpieces is delivered on auxiliary expanding table more balance, an interconnective described hydrostatic bearing and a described fixture are one group of intermediate connector, and intermediate connector described in two groups is installed between described auxiliary expanding table and described testpieces side by side.
The beneficial effects of the utility model are in that:
The mode that this utility model combines with auxiliary expanding table by adopting hydrostatic bearing comes the gravity suffered by bearing test part or centrifugal force, testpieces is no longer fully mounted on the table top of electric vibration table, also can pass through fixture, hydrostatic bearing, auxiliary expanding table is arranged on pivoted arm, significantly improve the stress of shake electronic dynamic platform internal guide or spring bearing, when do not change testpieces master shake the stress in direction, also can significantly improve non-master to shake the stress of direction guiding mechanism, significantly improve testpieces load-carrying ability, the effective mass of testpieces and the bulk testing ability of vibrating centrifuge is made to be significantly improved.
Accompanying drawing explanation
Fig. 1 is the perspective view of vibrating centrifuge；
Fig. 2 is one of main TV structure schematic diagram of testpieces installation on conventional vibration centrifuge, is along arm mounting structure in figure；
Fig. 3 is the two of the main TV structure schematic diagram that the testpieces on conventional vibration centrifuge is installed, is plumbing arm mounting structure in figure；
Fig. 4 is electric vibration table inner supporting structure schematic diagram, is along arm mounting structure in figure；
Fig. 5 is one of main TV structure schematic diagram during the big quality test part erecting device application on vibrating centrifuge described in the utility model, is along arm mounting structure in figure；
Fig. 6 is two of main TV structure schematic diagram during the big quality test part erecting device application on vibrating centrifuge described in the utility model, is plumbing arm mounting structure in figure.
Detailed description of the invention
Below in conjunction with accompanying drawing, the utility model is described in further detail:
Such as Fig. 1, shown in Fig. 5 and Fig. 6, the pivoted arm 4 of vibrating centrifuge described in the utility model is provided with electric vibration table 3, one end of testpieces 1 is installed on the table top 2 of electric vibration table 3, big quality test part erecting device on vibrating centrifuge described in the utility model includes auxiliary expanding table 15, hydrostatic bearing 14 and fixture 13, auxiliary expanding table 15 is installed on pivoted arm 4, if electric vibration table 3 is install along arm, then as shown in Figure 5, one end of auxiliary expanding table 15 is installed on below pivoted arm 4, below the above and testpieces 1 of the other end of auxiliary expanding table 15 close to each other and leave space, hydrostatic bearing 14 is installed on above auxiliary expanding table 15, fixture 13 is installed on above hydrostatic bearing 14, testpieces 1 is installed on above fixture 13；If electric vibration table 3 is installed for plumbing arm, then as shown in Figure 6, the lower end of auxiliary expanding table 15 is installed on the outer face of pivoted arm 4, and (" outward " here refers to the direction away from the main shaft 8 in Fig. 1, lower same), (" interior " here refers to the direction of the main shaft 8 in Fig. 1 for the medial surface of the upper end of auxiliary expanding table 15, lower with) close to each other with a lateral surface of testpieces 1 and leave space, hydrostatic bearing 14 is installed on the medial surface of auxiliary expanding table 15, fixture 13 is installed on the medial surface of hydrostatic bearing 14, and testpieces 1 is installed on the medial surface of fixture 13；No matter installing or plumbing arm installation along arm, an interconnective hydrostatic bearing 14 and a fixture 13 are one group of intermediate connector, and intermediate connector described in two groups is installed between auxiliary expanding table 15 and testpieces 1 side by side.The concrete structure of above-mentioned auxiliary expanding table 15, hydrostatic bearing 14 and fixture 13 is conventional structure, and its concrete shape, size and structure are not construed as limiting, as long as meeting above-mentioned position relation and annexation can realize innovative technology effect of the present utility model.
As shown in Figure 5 and Figure 6, during test, pivoted arm 4 driving electric vibration table 3 and testpieces 1 high speed rotating, meanwhile, electric vibration table 3 drives testpieces 1 to vibrate, it is achieved vibration-acceleration compbined test.Huge centrifugal force produced by testpieces 1 is mainly undertaken by auxiliary expanding table 15, guiding within electric vibration table 3 or supporting construction will not be produced the effect of significant power or moment of flexure, thus farthest improving the stress of the guide frame within electric vibration table 3 or supporting construction so that the effective mass of testpieces 1 can be significantly increased.Design although it is so can increase the quality of auxiliary expanding table 15 and the quality of half hydrostatic bearing 14, but the pivoted arm 4 of centrifuge is very little by these increase amounts；The quality that motion parts increases includes second half hydrostatic bearing 14 and fixture 13, although this can consume the thrust of part electric vibration table 3, but compared with the quality of increasable testpieces 1, remaining very little, the lifting to the bulk testing ability of vibrating centrifuge is significant on the whole.
Above-described embodiment is preferred embodiment of the present utility model; it it is not the restriction to technical solutions of the utility model; as long as without the technical scheme that creative work can realize on the basis of above-described embodiment, be regarded as falling within the scope of the rights protection of this utility model patent.
Claims (2)
1. the big quality test part erecting device on a vibrating centrifuge, the pivoted arm of described vibrating centrifuge is provided with electric vibration table, one end of described testpieces is installed on the table top of described electric vibration table, it is characterized in that: described big quality test part erecting device includes auxiliary expanding table, hydrostatic bearing and fixture, described auxiliary expanding table is installed on described pivoted arm, if described electric vibration table is install along arm, then one end of described auxiliary expanding table is installed on below described pivoted arm, below the above and described testpieces of the other end of described auxiliary expanding table close to each other and leave space, described hydrostatic bearing is installed on above described auxiliary expanding table, described fixture is installed on above described hydrostatic bearing, described testpieces is installed on above described fixture；Install if described electric vibration table is plumbing arm, then the lower end of described auxiliary expanding table is installed on the outer face of described pivoted arm, the medial surface of the upper end of described auxiliary expanding table is close to each other with a lateral surface of described testpieces and leaves space, described hydrostatic bearing is installed on the medial surface of described auxiliary expanding table, described fixture is installed on the medial surface of described hydrostatic bearing, and described testpieces is installed on the medial surface of described fixture.
2. the big quality test part erecting device on vibrating centrifuge according to claim 1, it is characterized in that: an interconnective described hydrostatic bearing and a described fixture are one group of intermediate connector, and intermediate connector described in two groups is installed between described auxiliary expanding table and described testpieces side by side.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620171714.3U CN205392779U (en) | 2016-03-07 | 2016-03-07 | Big quality testpieces installation device on vibration centrifuge |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620171714.3U CN205392779U (en) | 2016-03-07 | 2016-03-07 | Big quality testpieces installation device on vibration centrifuge |
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| Publication Number | Publication Date |
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| CN205392779U true CN205392779U (en) | 2016-07-27 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201620171714.3U Withdrawn - After Issue CN205392779U (en) | 2016-03-07 | 2016-03-07 | Big quality testpieces installation device on vibration centrifuge |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105562221A (en) * | 2016-03-07 | 2016-05-11 | 中国工程物理研究院总体工程研究所 | Large-mass test part mounting device on vibration centrifuge |
-
2016
- 2016-03-07 CN CN201620171714.3U patent/CN205392779U/en not_active Withdrawn - After Issue
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105562221A (en) * | 2016-03-07 | 2016-05-11 | 中国工程物理研究院总体工程研究所 | Large-mass test part mounting device on vibration centrifuge |
| CN105562221B (en) * | 2016-03-07 | 2018-05-15 | 中国工程物理研究院总体工程研究所 | Big quality test part erecting device on vibrating centrifuge |
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Legal Events
| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20160727 Effective date of abandoning: 20180515 |
|
| AV01 | Patent right actively abandoned |