CN104977146B - A kind of frequency converter vibration test fixture - Google Patents
A kind of frequency converter vibration test fixture Download PDFInfo
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- CN104977146B CN104977146B CN201510352775.XA CN201510352775A CN104977146B CN 104977146 B CN104977146 B CN 104977146B CN 201510352775 A CN201510352775 A CN 201510352775A CN 104977146 B CN104977146 B CN 104977146B
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- frequency converter
- oblique pull
- vertical beam
- supporting component
- test fixture
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Abstract
The present invention provides a kind of frequency converter vibration test fixture, including the bottom supporting component for being supported in frequency converter bottom surface and the side positioning component for being limited in frequency converter side, the bottom supporting component is mutually perpendicular to side positioning component, the bottom support component includes floor beam, bottom surface vertical beam and bottom surface oblique pull beam, the floor beam and bottom surface vertical beam intersect setting, and the periphery of the floor beam and bottom surface vertical beam passes through bottom surface oblique pull beam and connected.The present invention has the advantages of quality is small, rigidity is big and test error is small.
Description
Technical field
The present invention relates to test fixture, more particularly to a kind of frequency converter vibration test fixture.
Background technology
With development in science and technology, the vibration test of large-scale test product proposes higher requirement to testing equipment, and testing equipment
In test fixture test product is fixed on shaking platform and vibrational energy is transferred to test product, therefore, test fixture is whole
Key effect is played in vibration test.
Necessary calculating analysis is generally deficient of during existing frequency converter vibration test fixture design and verification test, fixture pass
Often there is distortion in the vibration passed, and the vibration value of each point differs greatly on fixture, multistage resonance, shadow be present in test frequency range
Ring test result.Meanwhile existing vibration test fixture structure can not also ensure test result accuracy, specifically, exist with
Lower shortcoming：
1）Vibration tong realizes that testpieces positions using multigroup horizontal beam and vertical beam, and vibration tong from great, shake by occupancy
Effective bearing capacity of dynamic platform, influences test result；
2）Vibration tong is rigidly low, intrinsic frequency is low, and the intrinsic frequency of vibration tong by the intrinsic frequency of trial product with being connect
Closely, resonance is easily produced during vibration test, influences result of the test；
3）Existing vibration tong specification is fixed, and when identical product, which need to be placed to different shake tables, to be tested, needs to use
A variety of test fixtures, cost are high.
The content of the invention
The technical problem to be solved in the present invention is that：For technical problem existing for prior art, the present invention provides one
A kind of frequency converter vibration test fixture that kind quality is small, rigidity is big and test error is small.
In order to solve the above technical problems, technical scheme proposed by the present invention is：
A kind of frequency converter vibration test fixture, including be supported in the bottom supporting component of frequency converter bottom surface and be limited in change
The side positioning component of frequency device side, the bottom supporting component are mutually perpendicular to side positioning component, the bottom support group
Part includes floor beam, bottom surface vertical beam and bottom surface oblique pull beam, and the floor beam and bottom surface vertical beam intersect setting, the bottom
The periphery of face crossbeam and bottom surface vertical beam is connected by bottom surface oblique pull beam.
Further improvement as above-mentioned technical proposal：
The bottom of the floor beam and bottom surface vertical beam is equipped with multiple peaces for wearing fastener connection shaking platform
Hole is filled, multiple mounting holes are arranged along the length direction of floor beam and bottom surface vertical beam.
The floor beam, bottom surface vertical beam are set for square crossing.
The floor beam, bottom surface vertical beam and bottom surface oblique pull beam are U-shaped beam.
The side positioning component includes side crossbeam, vertical beam and side oblique pull beam, the side crossbeam and bottom surface branch
Support component is parallel, and the vertical beam is vertical with bottom supporting component, the side crossbeam by vertical beam and side oblique pull beam with
Bottom support component connection.
The side crossbeam is parallel with the floor beam.
The side crossbeam, vertical beam and side oblique pull beam are U-shaped beam.
Vibration damping is equipped between the frequency converter and bottom supporting component and between the frequency converter and side positioning component
Device.
The bottom support component is provided with the hanger for hoisting fixture.
Compared with prior art, the advantage of the invention is that：
The present invention replaces a large amount of horizontal beams using a small amount of oblique pull beam, effectively reduces fixture quality, and bottom surface oblique pull beam connects
Floor beam and bottom surface vertical beam are connect, the rigidity requirement of support, fixture of the invention can be ensured in the case of fixture Mass lost
With the advantages of quality is small, rigidity is big；Meanwhile the intrinsic frequency of fixture improves, avoid vibration tong and made with frequency converter resonance
Into test error phenomenon.The present invention is further provided with side oblique pull beam, further enhances the rigidity of fixture.The present invention enters
One step arranges multiple mounting holes in the length direction of floor beam and bottom surface vertical beam, and fixture can be according to different shake tables, experiment class
Installation site is adjusted flexibly in type and loading direction, and fixture is applicable to a variety of shake tables, versatile, cost-effective.
Brief description of the drawings
Fig. 1 is the structural representation of the present invention in a particular application.
Fig. 2 is the structural representation of the present invention.
Fig. 3 is the structural representation of bottom surface support component in the present invention.
Fig. 4 is the structural representation of side positioning component in the present invention.
Each label represents in figure：
1st, frequency converter；2nd, bottom supporting component；21st, floor beam；22nd, bottom surface vertical beam；23rd, bottom surface oblique pull beam；3rd, side
Positioning component；31st, side crossbeam；32nd, vertical beam；33rd, side oblique pull beam；4th, shock absorber；5th, mounting hole；6th, hanger.
Embodiment
Under will combine Figure of description and specific embodiment the present invention will be described in further details.
As shown in Figure 1 to Figure 2, the frequency converter vibration test fixture of the present embodiment is used to frequency converter 1 being fixed on vibration
Frequency converter 1 is transferred on platform and by vibrational energy, frequency converter vibration test fixture includes bottom supporting component 2 and side is determined
Hyte part 3, bottom supporting component 2 are supported in the bottom surface of frequency converter 1, and side positioning component 3 is limited in the side of frequency converter 1, bottom surface branch
Support component 2 is oriented perpendicularly to one another frequency converter 1 with side positioning component 3, easy for installation.In the present embodiment, bottom supporting component 2 wraps
Include floor beam 21, bottom surface vertical beam 22 and bottom surface oblique pull beam 23, floor beam 21 and bottom surface vertical beam 22 intersect setting, ensure
The periphery of the basic in-plane stiffness of bottom supporting component 2, floor beam 21 and bottom surface vertical beam 22 is connected by bottom surface oblique pull beam 23
Connect.The present invention replaces a large amount of horizontal beams using a small amount of bottom surface oblique pull beam 23, effectively reduces fixture quality, and bottom surface oblique pull beam 23
Floor beam 21 and bottom surface vertical beam 22 are connected, the rigidity requirement of support, the present invention can be ensured in the case of fixture Mass lost
Fixture there is the advantages of quality is small, rigidity is big；Meanwhile the intrinsic frequency of fixture improves, and avoids vibration tong and frequency converter 1
Test error phenomenon caused by resonance.
In the present embodiment, the bottom of floor beam 21 and bottom surface vertical beam 22 is equipped with multiple mounting holes 5, multiple mounting holes 5
For wearing fastener connection shaking platform, multiple mounting holes 5 are arranged along the length direction of floor beam 21 and bottom surface vertical beam 22,
So that installation site can be adjusted flexibly according to different shake tables, test type and loading direction in fixture, fixture is applicable to a variety of
Shake table, it is versatile, it is cost-effective.
In the present embodiment, floor beam 21, bottom surface vertical beam 22 are set for square crossing.In the present embodiment, floor beam 21,
Bottom surface vertical beam 22 and bottom surface oblique pull beam 23 are U-shaped beam, and floor beam 21, bottom surface vertical beam 22 and bottom surface oblique pull beam 23 pass through welding
Mode connect.Such as Fig. 3, in the present embodiment, bottom surface vertical beam 22 is three, and floor beam 21 is five, and bottom surface oblique pull beam 23 is
Four, three foundation face vertical beams 22 are interspersed with five floor beams 21, ensure that the basic in-plane stiffness of base, four foundation faces
Oblique pull beam 23 further increases the in-plane stiffness of base, in other embodiments, floor beam 21, bottom surface vertical beam 22 and bottom surface
The quantity of oblique pull beam 23 can adjust according to factors such as test type and loading directions.In the present embodiment, on bottom supporting component 2
Provided with the hanger 6 for hoisting fixture, hanger 6 is two, and two hangers 6 are welded in the both ends of floor beam 21, play growth
The length of floor beam 21 facilitates the effect of hoisting fixture.
In the present embodiment, side positioning component 3 includes side crossbeam 31, vertical beam 32 and side oblique pull beam 33, and side is horizontal
Beam 31 is parallel with bottom supporting component 2, and vertical beam 32 is vertical with bottom supporting component 2, side crossbeam 31 by vertical beam 32 and
Side oblique pull beam 33 is connected with bottom supporting component 2, and the setting of side oblique pull beam 33 makes fixture rigidity and intrinsic frequency further
Improve.
In the present embodiment, side crossbeam 31 is parallel with floor beam 21.In other embodiments, side crossbeam 31 and bottom surface
Crossbeam 21 can be arranged at an angle.Side crossbeam 31, vertical beam 32 and side oblique pull beam 33 are U-shaped beam, side crossbeam
31st, vertical beam 32 and side oblique pull beam 33 are connected by way of welding.Such as Fig. 4, in the present embodiment, side crossbeam 31 is one
Root, vertical beam 32 are three, and side oblique pull beam 33 is five, in other embodiments, side crossbeam 31, vertical beam 32 and side
The quantity of oblique pull beam 33 can adjust according to factors such as test type and loading directions.Side crossbeam 31 is that frequency converter 1 provides side
Constraint, vertical beam 32 and side oblique pull beam 33 connect floor beam 21 and bottom supporting component 2, while improve fixture rigidity, make
Its first natural frequency is even up to more than 200Hz, is the intrinsic frequency of frequency converter 1（39Hz）More than 5 times, effectively prevent due to
Test error caused by resonance.
In the present embodiment, four shock absorbers 4 are provided between frequency converter 1 and bottom supporting component 2, frequency converter 1 is determined with side
Two shock absorbers 4 are provided between hyte part 3, realize the installation of frequency converter 1 and fixture in shaking platform, it is simple and compact for structure.
Although the present invention is disclosed above with preferred embodiment, but is not limited to the present invention.It is any to be familiar with ability
The technical staff in domain, in the case where not departing from technical solution of the present invention scope, all using the technology contents pair of the disclosure above
Technical solution of the present invention makes many possible changes and modifications, or is revised as the equivalent embodiment of equivalent variations.Therefore, it is every
Without departing from the content of technical solution of the present invention, according to the technology of the present invention essence to any simple modification made for any of the above embodiments,
Equivalent variations and modification, it all should fall in the range of technical solution of the present invention protection.
Claims (7)
1. a kind of frequency converter vibration test fixture, including it is supported in frequency converter（1）The bottom supporting component of bottom surface（2）It is and spacing
In frequency converter（1）The side positioning component of side（3）, the bottom supporting component（2）With side positioning component（3）Mutually hang down
Directly, it is characterised in that the bottom supporting component（2）Including floor beam（21）, bottom surface vertical beam（22）And bottom surface oblique pull beam
（23）, the floor beam（21）And bottom surface vertical beam（22）Intersect setting, the floor beam（21）And bottom surface vertical beam
（22）Periphery pass through bottom surface oblique pull beam（23）Connection, the side positioning component（3）Including a side crossbeam（31）, it is multiple
Vertical beam（32）And more side oblique pull beams（33）, the more vertical beams（32）Bottom supporting component is fixed at interval（2）
On, the side crossbeam（31）With bottom supporting component（2）It is parallel, the vertical beam（32）With bottom supporting component（2）Vertically,
The side crossbeam（31）Pass through vertical beam（32）And side oblique pull beam（33）With bottom supporting component（2）Connection, the side
Oblique pull beam（33）Including two kinds, one kind is and more vertical beams（32）It is coplanar and be located at more vertical beams（32）Overall left and right two
The side oblique pull beam of side（33）, another kind is and each vertical beam（32）It is corresponding, and with each vertical beam（32）It is front and rear to set
The side oblique pull beam put（33）, the floor beam（21）And bottom surface vertical beam（22）Bottom be equipped with for wear fastener company
Connect multiple mounting holes of shaking platform（5）, multiple mounting holes（5）Along floor beam（21）And bottom surface vertical beam（22）Length
Direction is arranged.
2. frequency converter vibration test fixture according to claim 1, it is characterised in that the floor beam（21）, bottom
Face vertical beam（22）Set for square crossing.
3. frequency converter vibration test fixture according to claim 1, it is characterised in that the floor beam（21）, bottom
Face vertical beam（22）And bottom surface oblique pull beam（23）It is U-shaped beam.
4. the frequency converter vibration test fixture according to claims 1 to 3 any one, it is characterised in that the side
Crossbeam（31）With the floor beam（21）It is parallel.
5. the frequency converter vibration test fixture according to claims 1 to 3 any one, it is characterised in that the side
Crossbeam（31）, vertical beam（32）And side oblique pull beam（33）It is U-shaped beam.
6. the frequency converter vibration test fixture according to claims 1 to 3 any one, it is characterised in that the frequency conversion
Device（1）With bottom supporting component（2）Between and the frequency converter（1）With side positioning component（3）Between be equipped with shock absorber
（4）.
7. the frequency converter vibration test fixture according to claims 1 to 3 any one, it is characterised in that the bottom surface
Support component（2）It is provided with the hanger for hoisting fixture（6）.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510352775.XA CN104977146B (en) | 2015-06-24 | 2015-06-24 | A kind of frequency converter vibration test fixture |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510352775.XA CN104977146B (en) | 2015-06-24 | 2015-06-24 | A kind of frequency converter vibration test fixture |
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| Publication Number | Publication Date |
|---|---|
| CN104977146A CN104977146A (en) | 2015-10-14 |
| CN104977146B true CN104977146B (en) | 2017-12-08 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510352775.XA Active CN104977146B (en) | 2015-06-24 | 2015-06-24 | A kind of frequency converter vibration test fixture |
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| CN (1) | CN104977146B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109269748A (en) * | 2018-10-31 | 2019-01-25 | 中海油能源发展股份有限公司 | Pipeline detection vibration equipment fixture |
| CN109664218A (en) * | 2018-12-12 | 2019-04-23 | 广州广电计量检测股份有限公司 | Cabinet fixture and its finite element simulation test method |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4263809A (en) * | 1979-07-02 | 1981-04-28 | Mts Systems Corporation | Tetraxial vehicle test fixture |
| CN102653360A (en) * | 2012-05-23 | 2012-09-05 | 中国十七冶集团有限公司 | Multifunctional soft bundled cable take-up and pay-off device |
| CN102777747A (en) * | 2012-07-31 | 2012-11-14 | 苏州傲海精密钣金制造有限公司 | TV (Television) shelf |
| CN103465195A (en) * | 2013-09-22 | 2013-12-25 | 中国船舶重工集团公司第七二三研究所 | Horizontal vibration test clamp |
| CN104180960A (en) * | 2014-08-20 | 2014-12-03 | 株洲南车时代电气股份有限公司 | Clamp for fixing part to be tested onto testing platform |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH04332839A (en) * | 1991-05-09 | 1992-11-19 | Fujitsu Ltd | Vibration testing system |
-
2015
- 2015-06-24 CN CN201510352775.XA patent/CN104977146B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4263809A (en) * | 1979-07-02 | 1981-04-28 | Mts Systems Corporation | Tetraxial vehicle test fixture |
| CN102653360A (en) * | 2012-05-23 | 2012-09-05 | 中国十七冶集团有限公司 | Multifunctional soft bundled cable take-up and pay-off device |
| CN102777747A (en) * | 2012-07-31 | 2012-11-14 | 苏州傲海精密钣金制造有限公司 | TV (Television) shelf |
| CN103465195A (en) * | 2013-09-22 | 2013-12-25 | 中国船舶重工集团公司第七二三研究所 | Horizontal vibration test clamp |
| CN104180960A (en) * | 2014-08-20 | 2014-12-03 | 株洲南车时代电气股份有限公司 | Clamp for fixing part to be tested onto testing platform |
Non-Patent Citations (2)
| Title |
|---|
| 《电子机柜振动夹具的动态结构设计》;张劲峰;《电子机械工程》;20050228;第21卷(第2期);第29-31页 * |
| 《车载电子设备机柜通用振动试验夹具设计》;查建新等;《现代雷达》;20070831;第29卷(第8期);第35-36、55页 * |
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| CN104977146A (en) | 2015-10-14 |
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Address after: The age of 412001 in Hunan Province, Zhuzhou Shifeng District Road No. 169 Patentee after: ZHUZHOU CRRC TIMES ELECTRIC Co.,Ltd. Address before: The age of 412001 in Hunan Province, Zhuzhou Shifeng District Road No. 169 Patentee before: ZHUZH CSR TIMES ELECTRIC Co.,Ltd. |