CN105352642B - Foil gauge pressue device - Google Patents
Foil gauge pressue device Download PDFInfo
- Publication number
- CN105352642B CN105352642B CN201510814793.5A CN201510814793A CN105352642B CN 105352642 B CN105352642 B CN 105352642B CN 201510814793 A CN201510814793 A CN 201510814793A CN 105352642 B CN105352642 B CN 105352642B
- Authority
- CN
- China
- Prior art keywords
- pressing plate
- foil gauge
- pressue device
- annular part
- ring
- Prior art date
- 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.)
- Active
Links
- 239000011888 foil Substances 0.000 title claims abstract description 71
- 238000012360 testing method Methods 0.000 claims abstract description 52
- 229920001971 elastomer Polymers 0.000 claims abstract description 27
- 239000000806 elastomer Substances 0.000 claims abstract description 25
- 239000010409 thin film Substances 0.000 claims description 2
- 239000010408 film Substances 0.000 description 7
- 238000005259 measurement Methods 0.000 description 5
- 230000006835 compression Effects 0.000 description 4
- 238000007906 compression Methods 0.000 description 4
- 239000003292 glue Substances 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 230000035945 sensitivity Effects 0.000 description 2
- 229920000297 Rayon Polymers 0.000 description 1
- 206010044565 Tremor Diseases 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 238000007654 immersion Methods 0.000 description 1
- 239000010687 lubricating oil Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01L—MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE
- G01L5/00—Apparatus for, or methods of, measuring force, work, mechanical power, or torque, specially adapted for specific purposes
- G01L5/0009—Force sensors associated with a bearing
Landscapes
- Chemical & Material Sciences (AREA)
- Analytical Chemistry (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Force Measurement Appropriate To Specific Purposes (AREA)
- Investigating Strength Of Materials By Application Of Mechanical Stress (AREA)
Abstract
A kind of foil gauge pressue device, for a foil gauge to be fixed in a ring test part, it is characterised in that the foil gauge pressue device includes：Relatively spaced first pressing plate and the second pressing plate；The interior annular part and exterior annular part being arranged concentrically, it is arranged between first pressing plate and second pressing plate, there is the second gap of ring-type between the interior annular part and the exterior annular part, for housing the ring test part, the ring test part is provided with the foil gauge with the first pressing plate opposite side；Elastomer block, between first pressing plate and second pressing plate, it is arranged on the side for being pasted with the foil gauge of the ring test part and the corresponding foil gauge；And force application element, for applying active force to first pressing plate and second pressing plate, make first pressing plate and second pressing plate close to each other, to extrude the ring test part by the elastomer block.
Description
Technical field
The present invention relates to a kind of foil gauge pressue device, more particularly to a kind of narrow annular structural strain piece pressue device.
Background technology
Aeroengine rotor should ensure that the axial load born in all working state lower bearing is suitable at one
In the range of, it is ensured that bearing securely and reliably works within the defined life-span.If axial force is excessive, bearing overloading, overtemperature can be caused
The problems such as；Axial force is too small or reverse, easily cause bearing light load slipping, scratch damage the problems such as.In reseach of engine process
In, it is necessary to monitor the axial load on rotor bearing in real time, and be subject to adjustment and make it this just needs within a zone of reasonableness
Rotor axial power is measured.
The elastic ring that measurement ring of aircraft engine rotor shaft holds axial force is a kind of typical narrow annular structure --- elastic ring,
It pastes the foil gauge composition test bridge of certain amount by the correct position in the side end face of elastic ring one, and direct measurement is by bullet
Property dependent variable caused by ring flexural deformation, and then obtain and cause the rotor axial load of elastic ring flexural deformation.Should on elastic ring
The degree of reliability for becoming the paste position of piece and pasting has a major impact to the measurement accuracy and service life of elastic ring sensor.It is real
Border operation in, how by strain gauge adhesion narrow annular structure and by strain gauge adhesion in the end face of narrow annular structure
How to be problem existing for prior art by its cure under pressure after upper.Pressurization reliable to elastic ring should be ensured in operation to ensure
Foil gauge attachment is firm, and elastic ring can not be allowed to produce permanent deformation again.
Specifically, the existing operation for pasting foil gauge may have following problem：If directly in narrow annular structure
Pressurization, the foil gauge for easily making to paste slide, offset correct mounting position, influence measurement sensitivity and precision；If
The thrust applied is too small, and strain gauge adhesion is insecure, makes it under subsequent high temperature, lubricating oil immersion and load environment, easily
Glue failure has occurred, has influenceed the service life of elastic ring sensor；If the thrust applied is too big, elastic ring may be produced
Life is permanently deformed and scrapped, it is also possible to slides foil gauge.
Foil gauge pasted on testpieces (such as elastic ring etc.) after pressuring method by paste position and easy to operate
Degree determines.For can the larger testpieces of retaining part, typically by clamp, the dynamics of clamping can only be by clip in itself
Determine.For that because paste position is relatively deep or stickup site area is too small, can not clamp or clamp the experiment of shakiness by clip
Part, generally require and design special pressue device.Existing loop configuration pressue device is mainly bolt clip plate structure, this knot
The drawbacks of structure, is that it can not effectively control thrust size.Thrust is too small, and foil gauge holds under complicated harsh environments
Easily play glue failure；Thrust is excessive, and elastic ring (the especially thin elastic ring of structure) may be caused to produce permanent deformation；If examination
It is narrow annular structure to test part, and carrying out pressurization in narrow zone is also easy to cause foil gauge to slide origin-location, influences elastic ring
The sensitivity of sensor and measurement accuracy.
The content of the invention
One of purpose of the present invention is to propose a kind of foil gauge pressue device, can be on ring test part reliably
Foil gauge is pasted, to solve the problems, such as that prior art is present.
To solve the above problems, one embodiment of the invention proposes a kind of foil gauge pressue device, for by a foil gauge pressure
It is tightly fixed on a ring test part, it is characterised in that the foil gauge pressue device includes：
Relatively spaced first pressing plate and the second pressing plate；
The interior annular part and exterior annular part being arranged concentrically, be arranged on first pressing plate and second pressing plate it
Between, the second gap with ring-type between the interior annular part and the exterior annular part, for housing the ring test part,
The ring test part is provided with the foil gauge with the first pressing plate opposite side；
Elastomer block, between first pressing plate and second pressing plate, it is arranged on the attachment of the ring test part
There are the side of the foil gauge and the corresponding foil gauge；And
Force application element, for applying active force to first pressing plate and second pressing plate, make first pressing plate and
Second pressing plate is close to each other, to extrude the ring test part by the elastomer block.
The foil gauge pressue device that the embodiment of the present invention proposes, can not only ensure that foil gauge is fixedly arranged at ring test part
Required axial compressive force together, while the permanent deformation of foil gauge generation sliding and ring test part can be avoided, so as to
The purpose for suitable pressing force of steadily pressurizeing, provide is provided.
Brief description of the drawings
Accompanying drawing herein is merged in specification, and forms the part of this specification, shows the reality for meeting the application
Apply example, and be used for together with specification the principle for explaining the application.
Fig. 1 is the signal for pasting foil gauge on ring test part using the foil gauge pressue device of one embodiment of the invention
Figure；
Fig. 2 is the transverse sectional view of the line A-A along Fig. 1；
Fig. 3 is the schematic diagram for the ring test part for being pasted with foil gauge；
Fig. 4 is the transverse sectional view of the line C-C along Fig. 3.
Embodiment
Fig. 1 is the signal for pasting foil gauge on ring test part using the foil gauge pressue device of one embodiment of the invention
Figure；Fig. 2 is the transverse sectional view of the line A-A along Fig. 1.As shown in Figure 1 to Figure 2, the embodiment of the present invention proposes that a kind of foil gauge adds
Pressure device, including bolt 1,2, two plain cushions 3 of nut, the first pressing plate 4, multiple elastomer blocks 5, film 6, exterior annular part 7, inner side
Annular element 9, the second pressing plate 10.
Bolt 1 and nut 2 are used to providing axial compressive force, and two plain cushions 3 are respectively arranged at the inner side of bolt 1 and nut 2 (i.e.
Bolt 1 and the relative side of nut 2), the first pressing plate 4 and the second pressing plate 10 are respectively arranged at the relative side of two plain cushions 3,
Multiple elastomer blocks 5, film 6, exterior annular part 7, interior annular part 9 and the ring test part for posting foil gauge S (being shown in Fig. 3)
8 are arranged between the first pressing plate 4 and the second pressing plate 10, and wherein interior annular part 9, exterior annular part 7 and ring test part 8 are set
In the inner side of the second pressing plate 10 (i.e. the side relative to the first pressing plate 4 of the second pressing plate 10), ring test part 8 is by interior annular
Part 9 and exterior annular part 7 are fastened in gap therebetween, attachment foil gauge S of the elastomer block 5 from close ring test part 8
The top of one side correspond to foil gauge S position pressure, elastomer block 5 is preferably block rubber, each elastomer block 5 and corresponding strain
Film 6 is provided between piece S, to avoid foil gauge S viscose glue from being contacted with block rubber.Applied by bolt 1 and nut 2 axial
Pressure, the axial compressive force act on elastomer block 5, exterior annular part 7, interior by two plain cushions 3, the first pressing plate 4, the second pressing plate 10
On side annular element 9 and ring test part 8, the foil gauge S mounted in advance is mounted on ring test part 8 securely.The dress
Put and be allowed to be pasted onto ring test part 8 securely for pressurizeing on foil gauge S.
In the present embodiment, bolt 1 sequentially wears the perforate of plain cushion 3, the perforate of the first pressing plate 4, interior annular part 9 are opened
Hole, the perforate of the second pressing plate 10, the perforate of another plain cushion 3, nut lock can pass through the sealed pressure of driving first together on bolt
The pressing plate 10 of plate 4 and second is relatively close, the first pressing plate 4 and the second pressing plate 10 is extruded the elastomer block 5 of middle setting and interior side ring
Shape part 9, exterior annular part 7 and ring test part 8.The perforate of plain cushion 3, the perforate of the first pressing plate 4, interior annular part 9 are opened
Hole, the perforate of the second pressing plate 10, the perforate of another plain cushion 3 are coaxially disposed with bolt 1, to provide the thrust of axial direction.
In the present embodiment, ring test part 8 can be elastic ring above.For foil gauge pressue device can be illustrated
Structurally and functionally, ring test part 8 is illustrated first.Fig. 3 and Fig. 4 is respectively the ring test part for being pasted with foil gauge
Schematic diagram and along Fig. 3 line C-C transverse sectional view.As shown in Figure 3 and Figure 4, ring test part 8 includes body 81 and boss
82, boss 82 is the structure needed for follow-up test, and it is divided into body 81 perpendicular to two end faces of axial direction, and each
Uniform intervals are set on individual end face.Foil gauge S can be pasted on one or two end face of body 81, is only existed in the present embodiment
Foil gauge S is pasted on one of end face of body 81, and avoids boss 82.
The structure and working method of pressue device are illustrated below.As shown in Figures 2 and 3, ring test part 8 is placed on
On second pressing plate 10, its inner side and outer side sets interior annular part 9 and exterior annular part 7, the close spiral shell of interior annular part 9 respectively
The top surface of the side (hereinafter referred to as " inner side ") of bolt 1 raises up, and the raised for example, ring-type, forms position limiting convex ring 91, limit
The upper surface of position bulge loop 91 is the second upper surface.The position limiting convex ring 91 for setting certain height of projection is in order under the first pressing plate 4
During compression elasticity block 5, the deflection of elastomer block 5 is limited, so as to ensure that bolt 1 compresses the first pressing plate 4 by nut 2, a pair of plain cushions 3
With the thrust that is applied during the second pressing plate 10 in claimed range.That is, the size of thrust can pass through interior annular part 9
The height of position limiting convex ring 91 and elastomer block 5 is adjusted.Because interior annular part 9 has certain rigidity, force application element exert a force to
Elastomer block 5, when elastomer block compression to a certain extent when top board 4 contact position limiting convex ring 91, and position limiting convex ring 91 substantially can not be by
Compression, force application element can not continue to exert a force herein, it is possible to stop force.
The upper surface 901 of the side (hereinafter referred to as " outside ") of the remote bolt 1 of interior annular part 9 and ring test part 8
Body 81 upper surface 801 it is concordant, the upper surface of the exterior annular part 7 also upper surface 701 with the body 81 of ring test part 8
Concordantly.From the figure 3, it may be seen that the radial width of ring test part 8 is very narrow, it is typical narrow annular structure, foil gauge S is pasted onto ring
The predeterminated position of the upper surface of the body 81 of shape testpieces 8.In addition, thin film 6, film 6 itself can be covered on foil gauge S
Non cohesive gel, foil gauge S and the elastomer block 5 above it are separated, the strain for avoiding pasting used in foil gauge S is glued to elastomer block 5
On.
Due to the upper surface 901 in the outside of interior annular part 9, the upper surface 701 of exterior annular part 7 and ring test part 8
Upper surface 801 it is concordant, the thrust applied by bolt 1 and nut 2 is delivered to elastomer block 5 and film 6, then passes through elastomer block
5 are shared by interior annular part 9, exterior annular part 7 and ring test part 8.That is, elastomer block 5 and film 6 can by interior annular part 9,
Ring test part 8 and exterior annular part 7 support completely, the strain for avoiding prior art from being pasted after pressurizeing on ring test part 8
Piece S is shifted.
The upper surface of elastomer block 5 contacts with the first pressing plate 4 in the embodiment of the present invention, when tightening the nut 2 on bolt 1,
By a pair of power transmissions of plain cushion 3, the spacing between the first pressing plate 4 and the second pressing plate 10 reduces, elasticity of compression block 5, until the first pressure
The lower surface of plate 4 is bonded with the position limiting convex ring 91 of the inner side of interior annular part 9, so both can guarantee that foil gauge S and ring test
Part 8 consolidates thrust required together, will not cause foil gauge S that the permanent deformation of sliding and ring test part 8 occurs again, from
And realize steady pressurization, the suitable purpose of institute's compressive force.
In addition, the bolt 1 and nut 2 in the embodiment of the present invention for producing axial force are only for example and are used, can in practice
To produce axial force by other force application elements, rather than it is defined in bolt 1 and nut 2.Other force application elements such as vice, hydraulic pressure adds
Pressure device can replace screw bolt and nut.In addition, the plain cushion of the present invention can omit, i.e. bolt 1 and nut 2 directly acts
Power extrudes interior annular part 9, outer between the upper pressing plate 10 of first pressing plate 4 and second by the first pressing plate 4 and the second pressing plate 10
Side annular element 7, elastomer block 5, film 6, ring test part 8, enable foil gauge S to fit in securely on ring test part 8.
From the foregoing, the foil gauge pressue device that the embodiment of the present invention proposes, can not only ensure foil gauge and annular
Testpieces is consolidated required axial compressive force, while can avoid foil gauge that sliding and ring test part occurs forever
Deformation long, so as to realize the purpose for suitable pressing force of steadily pressurizeing, provide.
It is description with reference to the accompanying drawings in order to ability in addition, comparatively " on ", " under ", " interior ", " outer " in text are
Domain those of ordinary skill is it is understood that be not particularly limited to.
It should be appreciated that the precision architecture that the application is not limited to be described above and is shown in the drawings, and
And various modifications and changes can be being carried out without departing from the scope.Scope of the present application is only limited by appended claim.
Claims (9)
- A kind of 1. foil gauge pressue device, for a foil gauge to be fixed in a ring test part, it is characterised in that institute Stating foil gauge pressue device includes：Relatively spaced first pressing plate and the second pressing plate；The interior annular part and exterior annular part being arranged concentrically, are arranged between first pressing plate and second pressing plate, institute Stating has the second gap of ring-type between interior annular part and the exterior annular part, described for housing the ring test part Ring test part is provided with the foil gauge with the first pressing plate opposite side；Elastomer block, between first pressing plate and second pressing plate, the attachment of the ring test part has been arranged on it State the side of foil gauge and the corresponding foil gauge；AndForce application element, for applying active force to first pressing plate and second pressing plate, make first pressing plate and described Second pressing plate is close to each other, to extrude the ring test part by the elastomer block；The interior annular part has projection, and the projection is positioned at the one of direction first pressing plate of the interior annular part Face.
- 2. foil gauge pressue device as claimed in claim 1, it is characterised in that the projection is position limiting convex ring, described spacing Bulge loop is located at the side of the remote ring test part of the interior annular part.
- 3. foil gauge pressue device as claimed in claim 1, it is characterised in that the interior annular part tries close to the ring-type The side for testing part has towards the first upper surface of first pressing plate, first upper surface of the interior annular part, institute State direction first pressing plate of the upper surface and the exterior annular part of direction first pressing plate of ring test part Upper surface is mutually flush.
- 4. foil gauge pressue device as claimed in claim 3, it is characterised in that the projection has towards first pressing plate The second upper surface, second upper surface be higher than the interior annular part first upper surface.
- 5. foil gauge pressue device as claimed in claim 1, it is characterised in that the force application element includes screw bolt and nut, It is separately positioned on the side that first pressing plate and second pressing plate are located remotely from each other, first pressing plate and second pressing plate There is perforate respectively, the bolt is opened through the perforate of first pressing plate, the interior annular part and second pressing plate Hole, the nut can be sealed to drive first pressing plate and second pressing plate to relatively move on the bolt.
- 6. foil gauge pressue device as claimed in claim 5, it is characterised in that the foil gauge pressue device also includes first Plain cushion and the second plain cushion, the side that first pressing plate and second pressing plate are located remotely from each other is separately positioned on, and positioned at described Bolt and the opposed facing side of the nut.
- 7. foil gauge pressue device as claimed in claim 5, it is characterised in that the bolt, the nut, the interior side ring Shape part is arranged concentrically.
- 8. foil gauge pressue device as claimed in claim 1, it is characterised in that the foil gauge pressue device also includes thin Film, it is arranged between the elastomer block and the foil gauge.
- 9. foil gauge pressue device as claimed in claim 1, it is characterised in that the force application element is vice or hydraulic pressurization Device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510814793.5A CN105352642B (en) | 2015-11-19 | 2015-11-19 | Foil gauge pressue device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510814793.5A CN105352642B (en) | 2015-11-19 | 2015-11-19 | Foil gauge pressue device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105352642A CN105352642A (en) | 2016-02-24 |
| CN105352642B true CN105352642B (en) | 2018-02-09 |
Family
ID=55328650
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510814793.5A Active CN105352642B (en) | 2015-11-19 | 2015-11-19 | Foil gauge pressue device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105352642B (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108426661B (en) * | 2018-02-28 | 2020-09-04 | 北京新能源汽车股份有限公司 | Detection device and detection method for axial force of driving motor and data processing equipment |
| CN109283397A (en) * | 2018-09-14 | 2019-01-29 | 中国科学院合肥物质科学研究院 | A kind of superconducting conductor ac loss test device |
| CN111238711B (en) * | 2018-11-29 | 2021-06-22 | 中国航发商用航空发动机有限责任公司 | Rotor axial force testing method |
| CN110749972A (en) * | 2019-12-04 | 2020-02-04 | 上海航天控制技术研究所 | Prism installation device convenient to fine setting |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| SU723204A1 (en) * | 1973-03-13 | 1980-03-25 | Центральный Научно-Исследовательский И Проектно-Экспериментальный Институт Организации,Механизации И Технической Помощи Строительству | Arrangement for securing strain gauge sensor on pipeline |
| CN201786710U (en) * | 2010-05-04 | 2011-04-06 | 福建天工电机有限公司 | Placement sheet tooling for bonding pump cover and main pump body of peripheral pump |
| CN201998082U (en) * | 2011-04-01 | 2011-10-05 | 锐马（福建）电气制造有限公司 | Pressurized curing clamp |
| CN104595313A (en) * | 2015-01-21 | 2015-05-06 | 中国工程物理研究院总体工程研究所 | Multi-sheet strain gauge patching clamp of column type force sensor |
| CN204461342U (en) * | 2015-02-09 | 2015-07-08 | 安徽科技学院 | A kind of hot-press solidifying device of strain measurement |
-
2015
- 2015-11-19 CN CN201510814793.5A patent/CN105352642B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| SU723204A1 (en) * | 1973-03-13 | 1980-03-25 | Центральный Научно-Исследовательский И Проектно-Экспериментальный Институт Организации,Механизации И Технической Помощи Строительству | Arrangement for securing strain gauge sensor on pipeline |
| CN201786710U (en) * | 2010-05-04 | 2011-04-06 | 福建天工电机有限公司 | Placement sheet tooling for bonding pump cover and main pump body of peripheral pump |
| CN201998082U (en) * | 2011-04-01 | 2011-10-05 | 锐马（福建）电气制造有限公司 | Pressurized curing clamp |
| CN104595313A (en) * | 2015-01-21 | 2015-05-06 | 中国工程物理研究院总体工程研究所 | Multi-sheet strain gauge patching clamp of column type force sensor |
| CN204461342U (en) * | 2015-02-09 | 2015-07-08 | 安徽科技学院 | A kind of hot-press solidifying device of strain measurement |
Also Published As
| Publication number | Publication date |
|---|---|
| CN105352642A (en) | 2016-02-24 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN105352642B (en) | Foil gauge pressue device | |
| EP2801739A2 (en) | Gasket pressure sensor | |
| CN109342219B (en) | Coating shear strength testing arrangement | |
| CN201371354Y (en) | Shaft hub interference joint pressing contraposition device | |
| CN108227111A (en) | A kind of method for reducing aspherical heavy caliber hollow reflective mirror adhesive stress | |
| US20140157906A1 (en) | Circular load cell strain sensor configuration | |
| CN104421332A (en) | Slide guide device | |
| CN102322257A (en) | Pressure equaliser | |
| CN106872170B (en) | Magnitude of interference for bearing installation simulates fixture | |
| CN203519286U (en) | Valve static hydraulic pressure testing machine fastening device | |
| CN110939659B (en) | Structure capable of accurately measuring axial force of turbine without compressing outer ring of bearing | |
| CN203627455U (en) | Adhering clamp of automobile drum brake shoe assembly | |
| CN103698492A (en) | Multifunctional tester for anti-seismic property of rockfill material of high rockfill dam | |
| CN201723718U (en) | Skeleton positioning device for oil seal body | |
| CN115413146B (en) | Pressing device and pressing method for bonding ultrasonic motor stator elastomer and piezoelectric ceramic sheet | |
| KR20200115284A (en) | Improved anti-squeal shim | |
| CN105172838A (en) | Punching-free type shear force sensor | |
| CN104730681A (en) | Planar film mirror installing method | |
| CN110044585B (en) | Spherical spacer fatigue test device and test method | |
| KR20220149440A (en) | Joining tool for pressing a disk to a shaft, and rotor shaft for an electric machine | |
| CN205426700U (en) | Differential screw hardness measuring device | |
| CN204479218U (en) | A kind of ground pressure sensor based on three dimensions monitoring | |
| CN104007032A (en) | Standard hardness machine with two high-precision force sensors | |
| CN108168816B (en) | It is a kind of can dynamic driving MEMS micro-structure triple axle exciting bank | |
| CN210026450U (en) | Sensor paster pressure device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CP03 | Change of name, title or address | ||
| CP03 | Change of name, title or address |
Address after: Dong Jiaduan 412002 in Hunan province Zhuzhou city Lusong District Patentee after: AECC HUNAN AVIATION POWERPLANT Research Institute Country or region after: China Address before: Dong Jiaduan 412002 in Hunan province Zhuzhou city Lusong District Patentee before: CHINA AVIATION POWER MACHINERY INSTITUTE Country or region before: China |