CN202255810U - Variable-frequency vibrator for test chamber - Google Patents
Variable-frequency vibrator for test chamber Download PDFInfo
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- CN202255810U CN202255810U CN2011203637719U CN201120363771U CN202255810U CN 202255810 U CN202255810 U CN 202255810U CN 2011203637719 U CN2011203637719 U CN 2011203637719U CN 201120363771 U CN201120363771 U CN 201120363771U CN 202255810 U CN202255810 U CN 202255810U
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- pneumatic hammer
- vibration
- frequency
- chamber
- shaking table
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Abstract
The utility model relates to the field of experimental apparatuses, particularly a variable-frequency vibrator for a test chamber, which comprises a vibration worktable and a plurality of air hammers, wherein the vibration worktable has an upper surface and a lower surface, and the upper surface is communicated with the test chamber; the air hammers have at least two different vibration frequencies, and are connected with the lower surface of the vibration worktable; and the vibration direction of the air hammers in operation is inclined relative to the plane of the vibration worktable. The variable-frequency vibrator for a test chamber solves the technical problem of three-axle six-degrees-of-freedom random vibration, effectively activates various defects of the tested product, and ensures the product quality.
Description
Technical field
The present invention relates to the experimental facilities field, relate in particular to a kind of variant-frequency vibration device that is applied to chamber.
Background technology
Behind enterprise's research and development new product,, guarantee the outgoing of product, must in chamber, expedite product wear out in order to find out the defective of product rapidly.Because of the designed life of some product generally all longer, the performance that can not test new product through the mode of unaccelerated aging.
The traditional experiment case generally only possesses high low temperature alternation function, receives trial product to be exposed to the performance of extreme climate with check.Like Chinese patent CN201744357 disclosed " high low temperature alternation damp heat test box ", mainly constitute by evaporator, condenser, refrigeration compressor, circulating fan, heat-insulation layer, kapillary, copper pipe, liquid back pipe etc.
Many this trial products that receive will can not receive negative effect to guarantee them through vibration-testing repeatedly in operate as normal.Disclose a kind of " testing apparatus that has environment control vibrator compartmen " like Chinese patent CN1491351, having comprised: chamber, weather control structure, shaking table and a plurality of Vib.s that are connected.
The vibrating device of prior art chamber vibrates with fixed frequency, is generally the above-below direction vibration, and vibration acceleration is less.Receive the inner crackle of trial product possibly be arbitrarily dimension to, the size of internal stress also is uncertain.The vibrating device of prior art chamber can not effectively intensify the defective that existed by trial product.
The utility model content
To the problem that exists in the prior art, the purpose of the utility model is to provide a kind of chamber variant-frequency vibration device, solves the technical matters of Triaxiality and six degrees of freedom random vibration.
To achieve these goals, the utility model provides following technical scheme:
The utility model chamber variant-frequency vibration device is installed on chamber inside, comprising:
A shaking table plate, this shaking table plate have a upper surface that is communicated with chamber and a lower surface.
A plurality of pneumatic hammers, said pneumatic hammer have two kinds of vibration frequencies inequality at least, are connected in the lower surface of shaking table plate, and operation vibration direction and shaking table board plane tilt.
Said pneumatic hammer comprises the pneumatic hammer shell, and pneumatic hammer shell hollow also is provided with the movable hammer heart, and air admission hole and venthole are communicated with pneumatic hammer shell hollow; The installed surface that direction of motion tilted when one end of pneumatic hammer shell was provided with and hammers into shape heart work.The hammer heart weight of pneumatic hammer with higher vibration frequency is less.
Preferably, the air admission hole of said pneumatic hammer shell is provided with Gas flow-limiting valve and pressure regulator valve, is used to regulate pressurized air to change the vibration acceleration and the vibration frequency of pneumatic hammer.
Preferably, comprise the pneumatic hammer of three kinds of different vibration frequencies, the pneumatic hammer of every kind of frequency has four, is installed on four limits of shaking table plate lower surface respectively.
The utility model chamber variant-frequency vibration device has following beneficial effect:
1, pneumatic hammer is connected in the lower surface of shaking table plate, operation vibration direction and working plate plane inclination.The shaking table plate obtains the vibration acceleration of vertical direction and horizontal direction simultaneously.Because the installation direction of several pneumatic hammers is different, makes the shaking table plate obtain the vibration acceleration of Triaxiality and six degrees of freedom simultaneously, can intensify different dimensional to crackle.
2, a plurality of pneumatic hammers have different vibration frequencies, and the vibration stack back of different frequency obtains irregular random vibration frequency effect, can intensify the crackle of different sizes.
3, obtain the pneumatic hammer of different vibration frequencies through the way that changes hammer heart weight, simple in structure, need not complicated frequency regulation arrangement, with low cost.
Description of drawings
Fig. 1 is the structural representation of the utility model pneumatic hammer;
Fig. 2 is the structural representation of the utility model chamber variant-frequency vibration device.
Embodiment
Below in conjunction with accompanying drawing and preferred embodiment the utility model technical scheme is further specified, is not regarded as restriction the utility model protection domain:
As shown in Figure 2, the utility model chamber variant-frequency vibration device comprises:
A shaking table plate 000, this shaking table plate 000 have a upper surface that is communicated with chamber and a lower surface.6 pneumatic hammers are connected in lower surface, operation vibration direction and shaking table plate 000 plane inclination of shaking table plate 000.Pneumatic hammer 001 has identical vibration frequency with pneumatic hammer 004; Pneumatic hammer 003 has identical vibration frequency with pneumatic hammer 006; Pneumatic hammer 002 has identical vibration frequency with pneumatic hammer 005.
Said pneumatic hammer is as shown in Figure 1, comprises pneumatic hammer shell 4, and pneumatic hammer shell 4 hollows also are provided with the movable hammer heart 5, and air admission hole 2 is communicated with pneumatic hammer shell 4 hollows with venthole.The installed surface 6 that direction of motion tilted when one end of pneumatic hammer shell 4 was provided with and hammers into shape heart work can be fixed on the shaking table plate through counterbore 7.The hammer heart weight of pneumatic hammer with higher vibration frequency is less.The hammer heart 5 is packed into behind the pneumatic hammer shell 4, covers base 3, and locks with bolt 1.
The technical matters of the utility model chamber variant-frequency vibration device solves Triaxiality and six degrees of freedom random vibration effectively intensifies the various defectives that receive trial product, ensures product quality.
Claims (5)
1. chamber variant-frequency vibration device is installed on chamber inside, it is characterized in that, comprising:
A shaking table plate, this shaking table plate have a upper surface that is communicated with chamber and a lower surface;
A plurality of pneumatic hammers, said pneumatic hammer have two kinds of vibration frequencies inequality at least, are connected in the lower surface of shaking table plate, and operation vibration direction and shaking table board plane tilt.
2. chamber variant-frequency vibration device as claimed in claim 1, it is characterized in that: said pneumatic hammer comprises the pneumatic hammer shell, and pneumatic hammer shell hollow also is provided with the movable hammer heart, and air admission hole and venthole are communicated with pneumatic hammer shell hollow; The installed surface that direction of motion tilted when one end of pneumatic hammer shell was provided with and hammers into shape heart work.
3. chamber variant-frequency vibration device as claimed in claim 2 is characterized in that: the hammer heart weight of pneumatic hammer with higher vibration frequency is less.
4. chamber variant-frequency vibration device as claimed in claim 2, it is characterized in that: the air admission hole of said pneumatic hammer shell is provided with Gas flow-limiting valve and pressure regulator valve.
5. chamber variant-frequency vibration device as claimed in claim 1 is characterized in that: comprise the pneumatic hammer of three kinds of different vibration frequencies, the pneumatic hammer of every kind of frequency has four, is installed on four limits of shaking table plate lower surface respectively.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011203637719U CN202255810U (en) | 2011-09-26 | 2011-09-26 | Variable-frequency vibrator for test chamber |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011203637719U CN202255810U (en) | 2011-09-26 | 2011-09-26 | Variable-frequency vibrator for test chamber |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202255810U true CN202255810U (en) | 2012-05-30 |
Family
ID=46117035
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011203637719U Expired - Fee Related CN202255810U (en) | 2011-09-26 | 2011-09-26 | Variable-frequency vibrator for test chamber |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202255810U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105404321A (en) * | 2015-11-03 | 2016-03-16 | 卢申林 | Repeat knock-on type vibrating platform and control method |
-
2011
- 2011-09-26 CN CN2011203637719U patent/CN202255810U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105404321A (en) * | 2015-11-03 | 2016-03-16 | 卢申林 | Repeat knock-on type vibrating platform and control method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20120530 Termination date: 20140926 |
|
| EXPY | Termination of patent right or utility model |