CN201145633Y - Dynamoelectric oscillating table load support air bag - Google Patents
Dynamoelectric oscillating table load support air bag Download PDFInfo
- Publication number
- CN201145633Y CN201145633Y CNU2008200305828U CN200820030582U CN201145633Y CN 201145633 Y CN201145633 Y CN 201145633Y CN U2008200305828 U CNU2008200305828 U CN U2008200305828U CN 200820030582 U CN200820030582 U CN 200820030582U CN 201145633 Y CN201145633 Y CN 201145633Y
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- Prior art keywords
- air spring
- air
- auxiliary chamber
- load support
- coil
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
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Abstract
The utility model relates to a load supporting airbag of an electrodynamic vibration table. The load supporting airbag is characterized in that: the airbag consists of at least one air spring (1) and an additional air chamber (2); the air spring (1) is supported under a movable coil(3); the upper surface of the air spring is fixed relatively to the movable coil(3); the lower surface of the air spring is fixed relatively to a table body; an inner cavity of the air spring (1) and the additional air chamber (2) are communicated in series; and the total cubage of the additional air chambers (2) is more than the total cubage of the air springs (1). As the load supporting airbag adopts a special structure that the air spring and the additional air chamber are combined in series, and the additional air chamber connected with the air spring equals to increasing the cubage of air which actually acts in the air spring, thereby reducing the inherent frequency of the air spring, effectively avoiding the occurrence of the resonance and having wide load domain and high operating reliability.
Description
Technical field
The utility model relates to the vibration testing device in the environmental mechanics test, the load support structure of particularly a kind of electric jigging platform moving coil bottom.
Background technology
Electric vibration testing bench (abbreviation electric vibration table) is a kind of equipment that product or parts is carried out the vibration simulation test, resistance to shock by a product of test evaluation, for examining this product quality that rational basis is provided, therefore be widely used in industries such as space flight, aviation, boats and ships, automobile, electronics, communication, household electrical appliances and instrument and meter.
Electric vibration table utilizes the electric and magnetic oscillation principle design, and its structure mainly is made up of several parts such as stage body, magnetic cylinder, field copper, moving-coil, bearing guiding device and cooling devices.Basic functional principle is: the field copper that is placed on the magnetic cylinder interior feeds direct current and produces the stationary magnetic field, the moving-coil that has work top and drive coil is connected with exchange current, moving-coil is placed the stationary magnetic field, owing to interact between exchange current and the stationary magnetic field, produce an exciting force with size of current and direction variation, promote moving-coil and vibrate back and forth along the centre of oscillation.
In the motorized stage design, be placed with test specimen on the vibration table surface, for the weight of balance test specimen, must apply the weight that power is removed the balance test specimen in the opposite direction of gravity.In traditional Design of vibration table,, generally adopt following three kinds of modes because the exciting force of shaking table is smaller:
1, guiding support device, in the general shaking table that adopts of this device, payload mass is very little, relies on the restoring force of the material deformation of guide piece to support load fully;
2, film air bag supporting construction (as accompanying drawing 1), it is more extensive that this device is used now, can satisfy the shaking table of various loads theoretically.But because self structure and technology generally only are used in the shaking table of medium exciting force size, reliability is very low simultaneously, and shaking table works long hours and can cause breakage of thin film applied, and this situation often occurs in real world applications;
3, perfectly straight stream electric current in drive coil, this principle is to utilize electric power to remove balanced loaded gravity, this method is easy to adjust, but the exciting force of whole excitation system is descended.
In sum, there is different shortcomings in three kinds of traditional structures.Under the requirement of present shaking table high thrust, wide load territory, high reliability, above-mentioned three kinds of traditional load support structures can't satisfy present the requirement.
Summary of the invention
The utility model purpose provides a kind of novel shaking table load support air bag, with the requirement of the high thrust that satisfies existing shaking table, wide load territory, high reliability.
For achieving the above object, the technical solution adopted in the utility model is: a kind of electric vibration table load support air bag, form by an at least one air spring and an auxiliary chamber, air spring is supported under the moving-coil, the relative moving-coil of its upper surface is fixedly connected, the relative stage body of lower surface is fixedly connected, and the air spring inner chamber communicates with the auxiliary chamber series connection, and the total measurement (volume) of above-mentioned each auxiliary chamber is greater than the total measurement (volume) of each air spring.
Related content in the technique scheme is explained as follows:
1, in the such scheme, the position that is provided with of described auxiliary chamber is not limit, and can be located at outside the stage body, can be located in the stage body yet, can be that bottom centre's chamber sealing of central magnetic pole constitutes, and can directly constitute with closed shell encapsulation yet.Preferred version is: described auxiliary chamber directly is located under the air spring, and the auxiliary chamber shell is connected between air spring lower surface and the stage body, and the auxiliary chamber top is established blow vent and communicated with the air spring inner chamber.
3, in the such scheme, the quantity of air spring can be one, also can be a plurality of; The quantity of auxiliary chamber can be one, also can be a plurality of.Comprise following scheme: the utility model is made of a plurality of air springs and an auxiliary chamber, and these air springs are supported under the moving-coil side by side, air spring and all be communicated with auxiliary chamber, and the volume of auxiliary chamber is greater than these air spring volume sums; The simplest preferred version is that an air spring and an auxiliary chamber constitute, and both directly are communicated with, and the volume of this auxiliary chamber is greater than the volume of this air spring.
2, in the such scheme, the best is: the total measurement (volume) of auxiliary chamber is more than 4 times or 4 times of air spring total measurement (volume).
3, in the such scheme, the piston that stretches out downwards on air spring upper surface and the moving-coil is fixedlyed connected.
4, in the such scheme, described air spring can adopt single curve sac type, double curve sac type or three curve sac types, selects by the actual amplitude requirement during use.
5, in the such scheme, this load support air bag can cooperate use with other various guiding support devices, to improve combination property.
6, such scheme can use this load support air bag to support moving-coil separately during use, also can use a plurality of forms that support side by side with multiple spot to be supported under the moving-coil.
Because the technique scheme utilization, the utility model compared with prior art has following advantage:
1, because the utility model adopts the special construction of air spring and auxiliary chamber tandem compound, auxiliary chamber is connected in and equals to have increased practical function volume of air in the air spring on the air spring, reduce the natural frequency of air spring, effectively avoided occurring resonance.
2, because the utility model adopts the special construction of air spring and auxiliary chamber tandem compound, when shaking table vibrated, the ratios delta P/ Δ H of anchorage force variable quantity of the present utility model and displacement was very little, can guarantee in vibration that promptly anchorage force is constant substantially.
3, because the utility model adopts the special construction of air spring and auxiliary chamber tandem compound, the air pressure that can charge into by adjustment is regulated the height of air spring, directly regulates the equilibrium position of moving-coil, and variable because of charging into air pressure, so the load territory is very wide.
4, because the utility model adopts the special construction of air spring and auxiliary chamber tandem compound, can select different air springs to meet design requirement according to the difference of Design of vibration table amplitude during application, use flexibly, widely applicable.
5, the utility model functional reliability height.
Description of drawings
Accompanying drawing 1 is existing film air bag supporting construction synoptic diagram;
Accompanying drawing 2 is the utility model structural representation.
In the above accompanying drawing: 1, air spring; 2, auxiliary chamber; 3, moving-coil; 4, blow vent; 5, piston; 6, moving coil framework; 7, drive coil; 8, film air bag; 9, load (test specimen).
Embodiment
Below in conjunction with drawings and Examples the utility model is further described:
Embodiment one: shown in accompanying drawing 2, a kind of electric vibration table load support air bag, form by an air spring 1 and an auxiliary chamber 2, air spring 1 is supported on moving-coil 3 times, the relative moving-coil of its upper surface 3 is fixedly connected, the relative stage body of lower surface (not drawing among the figure) is fixedly connected, and air spring 1 inner chamber communicates with auxiliary chamber 2 series connection; The volume of auxiliary chamber 2 is more than 4 times of air spring 1 volume.
Shown in accompanying drawing 2, specifically: air spring 1 is located at moving-coil 3 belows, and air spring 1 center overlaps with moving-coil 3 centers, stretches out piston 5 downwards on air spring 1 upper surface and the moving coil framework 6 and fixedlys connected; Air spring 1 lower surface is fixedlyed connected with auxiliary chamber 2 shells, and auxiliary chamber 2 shells are fixedlyed connected with stage body (not drawing among the figure) again; Auxiliary chamber 2 tops are established blow vent 4 and are communicated with air spring 1 inner chamber.
Fig. 2 shows that described air spring 1 is a double-convolution bellows type air spring, specifically needs to select by actual amplitude, also adopts single bellows type air spring, three curve sac type air springs.
Embodiment two: shown in accompanying drawing 2, a kind of electric vibration table load support air bag, be with the difference of embodiment one: form by two air springs 1 and an auxiliary chamber 2, two air springs 1 are uniform side by side to be supported on moving-coil 3 times, and two air springs, 1 inner chamber all is connected with auxiliary chamber 2; The volume of auxiliary chamber 2 is more than 4 times of two air spring 1 volume sums.
Other repeat no more here with embodiment one.
The foregoing description only illustrates, and actual air spring 1 can be a plurality of, and auxiliary chamber 2 also can be a plurality of, and air spring and auxiliary chamber series connection communicate and get final product.
The foregoing description only is explanation technical conceive of the present utility model and characteristics, and its purpose is to allow the personage who is familiar with this technology can understand content of the present utility model and enforcement according to this, can not limit protection domain of the present utility model with this.All equivalences of being done according to the utility model spirit change or modify, and all should be encompassed within the protection domain of the present utility model.
Claims (5)
1, a kind of electric vibration table load support air bag, it is characterized in that: form by an at least one air spring (1) and an auxiliary chamber (2), air spring (1) is supported under the moving-coil (3), the relative moving-coil of its upper surface (3) is fixedly connected, the relative stage body of lower surface is fixedly connected, air spring (1) inner chamber communicates with auxiliary chamber (2) series connection, and the total measurement (volume) of above-mentioned each auxiliary chamber (2) is greater than the total measurement (volume) of each air spring (1).
2, electric vibration table load support air bag according to claim 1 is characterized in that: the total measurement (volume) of described auxiliary chamber (2) is more than 4 times or 4 times of air spring (1) total measurement (volume).
3, electric vibration table load support air bag according to claim 1 is characterized in that: described auxiliary chamber (2) is located under the air spring (1), and auxiliary chamber (2) top is established blow vent (4) and communicated with air spring (1) inner chamber.
4, electric vibration table load support air bag according to claim 1 is characterized in that: the piston (5) that stretches out downwards on air spring (1) upper surface and the moving-coil (3) is fixedlyed connected.
5, electric vibration table load support air bag according to claim 1 is characterized in that: described air spring (1) is double-convolution bellows type air spring or three curve sac type air springs.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008200305828U CN201145633Y (en) | 2008-01-03 | 2008-01-03 | Dynamoelectric oscillating table load support air bag |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008200305828U CN201145633Y (en) | 2008-01-03 | 2008-01-03 | Dynamoelectric oscillating table load support air bag |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201145633Y true CN201145633Y (en) | 2008-11-05 |
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ID=40082516
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2008200305828U Expired - Lifetime CN201145633Y (en) | 2008-01-03 | 2008-01-03 | Dynamoelectric oscillating table load support air bag |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201145633Y (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106704272A (en) * | 2015-08-17 | 2017-05-24 | 天津海莱姆科技有限公司 | Metal-rubber composite spring isolated type energy accumulator |
| CN106768751A (en) * | 2016-11-18 | 2017-05-31 | 上海航天精密机械研究所 | A kind of vibration test is vertical to pressure self-balancing auxiliary support apparatus with gasbag-type |
| CN108844703A (en) * | 2018-04-08 | 2018-11-20 | 北京强度环境研究所 | Support device and TT&C system |
-
2008
- 2008-01-03 CN CNU2008200305828U patent/CN201145633Y/en not_active Expired - Lifetime
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106704272A (en) * | 2015-08-17 | 2017-05-24 | 天津海莱姆科技有限公司 | Metal-rubber composite spring isolated type energy accumulator |
| CN106704272B (en) * | 2015-08-17 | 2024-03-15 | 天津海莱姆科技有限公司 | Metal rubber composite spring isolation type energy accumulator |
| CN106768751A (en) * | 2016-11-18 | 2017-05-31 | 上海航天精密机械研究所 | A kind of vibration test is vertical to pressure self-balancing auxiliary support apparatus with gasbag-type |
| CN106768751B (en) * | 2016-11-18 | 2019-06-11 | 上海航天精密机械研究所 | A kind of vibration test is with gasbag-type vertically to pressure self-balancing auxiliary support apparatus |
| CN108844703A (en) * | 2018-04-08 | 2018-11-20 | 北京强度环境研究所 | Support device and TT&C system |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| ASS | Succession or assignment of patent right |
Owner name: SUZHOU SUSHISHIYAN INSTRUMENT CO., LTD. Free format text: FORMER OWNER: SUZHOU TESTING EQUIPMENT GENERAL FACTORY Effective date: 20090605 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20090605 Address after: Jiangsu Province, Suzhou Industrial Park, the new science and Technology City, only Ting Town, No. 18 Ji Feng Road, zip code: 215122 Patentee after: Suzhou Sushi Testing Instrument Co., Ltd. Address before: No. 55 deer Road, hi tech Zone, Jiangsu, Suzhou Province: 215129 Patentee before: Suzhou Testing Instrument Factory |
|
| C56 | Change in the name or address of the patentee | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 215122 Suzhou Industrial Park, the new science and Technology City, the town of Ting Ting Feng Road, No. 18, No. Patentee after: Suzhou Sushi Testing Instrument Co.,Ltd. Address before: 215122 Suzhou Industrial Park, the new science and Technology City, the town of Ting Ting Feng Road, No. 18, No. Patentee before: Suzhou Sushi Testing Instrument Co., Ltd. |
|
| CP01 | Change in the name or title of a patent holder |
Address after: 215122 Suzhou Industrial Park, the new science and Technology City, the town of Ting Ting Feng Road, No. 18, No. Patentee after: Suzhou Su test group Limited by Share Ltd Address before: 215122 Suzhou Industrial Park, the new science and Technology City, the town of Ting Ting Feng Road, No. 18, No. Patentee before: Suzhou Sushi Testing Instrument Co.,Ltd. |
|
| CP01 | Change in the name or title of a patent holder | ||
| CX01 | Expiry of patent term |
Granted publication date: 20081105 |
|
| CX01 | Expiry of patent term |