CN208818452U - A kind of vibration fatigue test device for high frequency high stress blade - Google Patents
A kind of vibration fatigue test device for high frequency high stress blade Download PDFInfo
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- CN208818452U CN208818452U CN201821392214.8U CN201821392214U CN208818452U CN 208818452 U CN208818452 U CN 208818452U CN 201821392214 U CN201821392214 U CN 201821392214U CN 208818452 U CN208818452 U CN 208818452U
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- blade
- clamp body
- fatigue test
- test device
- high frequency
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Abstract
The utility model discloses a kind of vibration fatigue test devices for high frequency high stress blade, it is arranged on vibratory equipment, including be fixed on vibratory equipment and in the amplification body of inverted u-shaped, the fixture unit put generally is set, the opening of the amplification body be arranged towards the vibratory equipment, the fixture unit include for blade described in clamping clamp body, be arranged on the clamp body and be used to adjust the balance weight assembly of the relatively described blade resonance frequency of the clamp body.The utility model at least has the following advantages: not will increase additional additional frequency, and the frequency that can be generated to single unit system is adjusted.
Description
Technical field
The utility model relates to fatigue test technology field more particularly to a kind of vibration for high frequency high stress blade are tired
Labor experimental rig.
Background technique
The characteristics of wide driving frequency of electric vibration table and big exciting force, allows to complete the fatigue test of most of blade.
However for high frequency high stress blade, shake table reaches full thrust rating, and blade is but not achieved in the maximum vibration stress on blade
Fatigue strength, lead to not using blade generate fatigue rupture.Such as application No. is: CN203519294U, one kind are applied to
The high acceleration generation device of vibration rig, structure use cantilever beam structure, can produce biggish acceleration, but
It is also easy to produce the asymmetry of structure in use process, system is caused to generate additional additional frequency, error shadow is caused to bulk testing
It rings.
Utility model content
The technical problem to be solved by the present invention is to provide a kind of vibration fatigue tests for high frequency high stress blade
Device not will increase additional additional frequency, and the frequency that can be generated to single unit system is adjusted.
In order to solve the above-mentioned technical problem, the utility model provides a kind of vibrating fatigue for high frequency high stress blade
Experimental rig is arranged on vibratory equipment, including being fixed on vibratory equipment and existing in the amplification body of inverted u-shaped, setting
The opening of the fixture unit put generally, the amplification body is arranged towards the vibratory equipment, and the fixture unit includes
It on the clamp body and is used to adjust the relatively described blade of the clamp body total for the clamp body of blade described in clamping, setting
The balance weight assembly of vibration frequency.
Further, it is provided with the briquetting for blade described in clamping on the clamp body, is offered on the clamp body
Accommodate the accommodation groove of the briquetting.
Further, the tongue-and-groove of the tangible cooperation blade is opened up on the briquetting.
Further, lock-screw is provided on the clamp body, the lock-screw extends in the accommodation groove simultaneously
Compress the briquetting.
Further, the balance weight assembly includes the muti-piece clump weight being detachably connected with the clamp body.
Further, the clump weight is locked on the clamp body by screw.
Further, the amplification body and clamp body are provided directly with the connecting column of both connections.
Further, the connecting column is put generally by nut check described.
By above-mentioned technical proposal, the utility model at least has the following advantages: utilizing girder construction by setting amplification body
Amplification is generated, and preferably vibrational energy can be transmitted on clamp body；By being provided with clamp body, can have so that leaf
The available bigger exciting force of piece is straight, and up to 25 times；By being provided with balance weight assembly, by the counterweight for replacing different quality
Block can effectively change the different resonant frequencies of clamp body, and then realize and carry out vibration fatigue test to different frequency blade,
Structure optimization.
Detailed description of the invention
Fig. 1 is the overall structure diagram of the utility model.
In the figures above: 1, vibratory equipment；2, amplify body；3, clamp body；4, briquetting；5, accommodation groove；6, tongue-and-groove；7, it locks
Tight screw；8, clump weight；9, screw；10, connecting column；11, nut.
Specific embodiment
The utility model is described in further detail in the following with reference to the drawings and specific embodiments, so that those skilled in the art
The utility model may be better understood and can be practiced, but illustrated embodiment is not as the restriction to the utility model.
In conjunction with described in Fig. 1, the utility model discloses a kind of vibration fatigue test device for high frequency high stress blade,
It is arranged on vibratory equipment 1, including being fixed on vibratory equipment 1 and being put in the amplification body 2 of inverted u-shaped, setting described
Fixture unit on substantially 2.In the utility model, the opening of the amplification body 2 is arranged towards the vibratory equipment 1, by setting
Substantially 2 are put, generates amplification using girder construction, and preferably vibrational energy can be transmitted on fixture unit.
The fixture unit include for blade described in clamping clamp body 3, be arranged on the clamp body 3 and for adjusting
The balance weight assembly of the relatively described blade resonance frequency of the whole clamp body 3.In the utility model, it is provided on the clamp body 3
For the briquetting 4 of blade described in clamping, the accommodation groove 5 for accommodating the briquetting 4 is offered on the clamp body 3, on the briquetting 4
Open up the tongue-and-groove 6 of the tangible cooperation blade.In clamping process, the tenon portion of the blade tip is inserted into the tongue-and-groove 6.Pass through
Be provided with clamp body 3, can have so that blade to can get bigger exciting force straight, up to 25 times.
In the utility model, lock-screw 7 is provided on the preferably described clamp body 3, the lock-screw 7 extends to institute
It states in accommodation groove 5 and compresses the briquetting 4.By above-mentioned set-up mode, can preferably be locked to blade.
In the utility model, the balance weight assembly includes the muti-piece clump weight 8 being detachably connected with the clamp body, described
Clump weight 8 is locked on the clamp body 3 by screw 9.By being provided with balance weight assembly, by the counterweight for replacing different quality
Block 8 can effectively change the different resonant frequencies of clamp body 3, and then realize and carry out vibrating fatigue examination to different frequency blade
It tests, structure optimization.
In the utility model, the preferably described amplification body 2 and clamp body 3 are provided directly with the connecting column 10 for connecting the two.
The connecting column 10 is locked on the amplification body 2 by nut 11.In the utility model, preferably the connecting column 10 with
The clamp body 3 is integrated setting.
Embodiment described above is only preferred embodiments for fully illustrating the utility model, the utility model
Protection scope it is without being limited thereto.Those skilled in the art made equivalent substitute or change on the basis of the utility model
It changes, both is within the protection scope of the present invention.The protection scope of the utility model is subject to claims.
Claims (8)
1. a kind of vibration fatigue test device for high frequency high stress blade is arranged on vibratory equipment, which is characterized in that packet
It includes and is fixed on the vibratory equipment and is in the amplification body of inverted u-shaped, the fixture unit put generally, institute are set
State amplification body opening be arranged towards the vibratory equipment, the fixture unit include for blade described in clamping clamp body,
Balance weight assembly on the clamp body and for adjusting the relatively described blade resonance frequency of the clamp body is set.
2. being used for the vibration fatigue test device of high frequency high stress blade as described in claim 1, which is characterized in that the folder
It is particularly provided with the briquetting for blade described in clamping, the accommodation groove for accommodating the briquetting is offered on the clamp body.
3. being used for the vibration fatigue test device of high frequency high stress blade as claimed in claim 2, which is characterized in that the pressure
The tongue-and-groove of the tangible cooperation blade is opened up on block.
4. being used for the vibration fatigue test device of high frequency high stress blade as claimed in claim 3, which is characterized in that the folder
It is particularly provided with lock-screw, the lock-screw extends in the accommodation groove and compresses the briquetting.
5. being used for the vibration fatigue test device of high frequency high stress blade as described in claim 1, which is characterized in that described to match
Recombinating part includes the muti-piece clump weight being detachably connected with the clamp body.
6. being used for the vibration fatigue test device of high frequency high stress blade as claimed in claim 5, which is characterized in that described to match
Pouring weight is locked on the clamp body by screw.
7. being used for the vibration fatigue test device of high frequency high stress blade as described in claim 1, which is characterized in that described to put
The connecting column of both connections is substantially provided directly with clamp body.
8. being used for the vibration fatigue test device of high frequency high stress blade as claimed in claim 7, which is characterized in that the company
Column is connect to put generally by nut check described.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821392214.8U CN208818452U (en) | 2018-08-28 | 2018-08-28 | A kind of vibration fatigue test device for high frequency high stress blade |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821392214.8U CN208818452U (en) | 2018-08-28 | 2018-08-28 | A kind of vibration fatigue test device for high frequency high stress blade |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208818452U true CN208818452U (en) | 2019-05-03 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821392214.8U Active CN208818452U (en) | 2018-08-28 | 2018-08-28 | A kind of vibration fatigue test device for high frequency high stress blade |
Country Status (1)
| Country | Link |
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| CN (1) | CN208818452U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108918070A (en) * | 2018-08-28 | 2018-11-30 | 苏州长菱测试技术有限公司 | A kind of vibration fatigue test device for high frequency stress blade |
| CN110849568A (en) * | 2019-12-24 | 2020-02-28 | 广电计量检测（沈阳）有限公司 | Device and method for testing fatigue life of structure |
-
2018
- 2018-08-28 CN CN201821392214.8U patent/CN208818452U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108918070A (en) * | 2018-08-28 | 2018-11-30 | 苏州长菱测试技术有限公司 | A kind of vibration fatigue test device for high frequency stress blade |
| CN110849568A (en) * | 2019-12-24 | 2020-02-28 | 广电计量检测（沈阳）有限公司 | Device and method for testing fatigue life of structure |
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