CN110108577A - Thin-wall construction axial bending loading device - Google Patents
Thin-wall construction axial bending loading device Download PDFInfo
- Publication number
- CN110108577A CN110108577A CN201910449781.5A CN201910449781A CN110108577A CN 110108577 A CN110108577 A CN 110108577A CN 201910449781 A CN201910449781 A CN 201910449781A CN 110108577 A CN110108577 A CN 110108577A
- Authority
- CN
- China
- Prior art keywords
- face
- thin
- bearing
- loading device
- load
- 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.)
- Granted
Links
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N3/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N3/20—Investigating strength properties of solid materials by application of mechanical stress by applying steady bending forces
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N2203/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N2203/0014—Type of force applied
- G01N2203/0023—Bending
Landscapes
- Physics & Mathematics (AREA)
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Analytical Chemistry (AREA)
- Biochemistry (AREA)
- General Health & Medical Sciences (AREA)
- General Physics & Mathematics (AREA)
- Immunology (AREA)
- Pathology (AREA)
- Investigating Strength Of Materials By Application Of Mechanical Stress (AREA)
Abstract
The disclosure provides a kind of thin-wall construction axial bending loading device; thin-wall construction axial bending loading device includes load end face and fixed end face; fixes thin-wall construction between load end face and fixed end face; wherein: being equipped with rotary shaft on load end face; rotary shaft is supported by bearing; bearing is mounted in bearing spider, and when applying load to load end face, load end face can be rotated around the axial line of rotary shaft；Loading end face also has recess portion on the side towards fixed end face, recess portion is sized so that when one end of thin-wall construction to be mounted in recess portion; the end face center line at the end of thin-wall construction is overlapped with the axial line of rotary shaft; to realize that thin-wall construction is bent along end face center line in axial line rotation of the load end face around rotary shaft.
Description
Technical field
This disclosure relates to a kind of thin-wall construction axial bending loading device.
Background technique
Since two airflow channels that parallel turbine combines circulation (TBCC) engine are arranged in juxtaposition, mounting structure has
It is the characteristics of multiple-limb Path of Force Transfer and multiple installation units, dramatically different with traditional whirlpool spray fanjet.Simultaneously as into,
Exhaust apparatus flies/send out integrated design requirement, air intake duct and unilateral expansion nozzle be diadactic structure and structure type with it is winged
Machine layout is closely related, and turbine base, jet stream precooling zone and stamping combustion chamber are axially symmetric structure.Therefore air intake duct, tail spray
The structure of the components such as pipe, changeover portion generallys use unsymmetrical section or the irregular geometry form for being bent Path of Force Transfer.This
The deformation of a little unsymmetrical section force transferring structures in operating conditions and the axially symmetric structure of conventional whirlpool spray fanjet have significantly
Difference.In the design of these unsymmetrical section structures, need to carry out experimental test calculation and check analysis as a result, still adding
It carries test to find in the process, is easy to appear when these structures are along center line axial bending and generates additional axial drawing, compressive load etc.
Problems.
Summary of the invention
In order to solve at least one above-mentioned technical problem, the disclosure provides a kind of thin-wall construction axial bending loading device,
The end face center for turning the asymmetric thin-wall constructions such as side, rectangular bend, rectangle variable cross-section along thin-wall construction especially circle can be achieved
Bending, without generating additional axial drawing, compressive load.It is achieved through the following technical solutions.
According to one aspect of the disclosure, thin-wall construction axial bending loading device includes loading end face and fixed end face,
Thin-wall construction is fixed between load end face and fixed end face, in which: rotary shaft is installed on load end face, rotary shaft is by axis
Bearing is held, bearing is mounted in bearing spider, and when applying load to load end face, load end face can be around the axle center of rotary shaft
Line rotation；Load end face also has a recess portion on the side towards fixed end face, and recess portion is sized so that by thin-walled
When one end of structure is mounted in recess portion, the end face center line at the end of thin-wall construction is overlapped with the axial line of rotary shaft, thus
Realize that thin-wall construction is bent along end face center line in axial line rotation of the load end face around rotary shaft.
According at least one embodiment of the disclosure, loading device further includes loading end, and loading end is mounted on loading end
On face, by applying load to loading end, the axial line rotation for loading end face around rotary shaft can be made.
According at least one embodiment of the disclosure, there is adjustable mounting hole on fixed end face, have to be fixedly mounted
The thin-wall construction of different face sizes.
According at least one embodiment of the disclosure, loading device includes two coaxial rotary shafts, each rotary shaft
It is supported by corresponding bearing, each bearing is mounted in its bearing spider.
According at least one embodiment of the disclosure, bearing spider includes upper bearing (metal) support and lower bearing support, bearing
It is mounted between upper bearing (metal) support and lower bearing support.
According at least one embodiment of the disclosure, loading device further includes bracket and bottom plate, and bracket is used to support solid
Surely end face is fixed；Bracket, fixed end face and lower bearing support are mounted on bottom plate.
According at least one embodiment of the disclosure, the expression formula of the depth of recess portion is d=D/2+t, wherein d is indicated
The depth of recess portion, D indicate that the diameter of rotary shaft, t indicate the flange thickness of the one end of thin-wall construction being installed in recess portion.
According at least one embodiment of the disclosure, the cross sectional shape of recess portion and the cross sectional shape of flange are consistent.
According at least one embodiment of the disclosure, this is added at the upper surface center of loading end by Material Testing Machine
Carry the load of end application vertically downward.
Detailed description of the invention
Attached drawing shows the illustrative embodiments of the disclosure, and it is bright together for explaining the principles of this disclosure,
Which includes these attached drawings to provide further understanding of the disclosure, and attached drawing is included in the description and constitutes this
Part of specification.
Fig. 1 is the structural representation according to the thin-wall construction axial bending loading device of at least one embodiment of the disclosure
Figure.
Fig. 2 is the recess structure schematic diagram according to the preceding load end face of at least one embodiment of the disclosure.
Fig. 3 is the rear fixed end structure illustration according at least one embodiment of the disclosure.
Specific embodiment
The disclosure is described in further detail with embodiment with reference to the accompanying drawing.It is understood that this place
The specific embodiment of description is only used for explaining related content, rather than the restriction to the disclosure.It also should be noted that being
Convenient for description, part relevant to the disclosure is illustrated only in attached drawing.
It should be noted that in the absence of conflict, the feature in embodiment and embodiment in the disclosure can
To be combined with each other.The disclosure is described in detail below with reference to the accompanying drawings and in conjunction with embodiment.
In an embodiment of the disclosure, thin-wall construction axial bending loading device includes load end face and fixing end
Thin-wall construction is fixedly mounted between load end face and fixed end face in face.Wherein, it loads on end face and rotary shaft is installed, rotate
Axis is supported by bearing, and bearing holder (housing, cover) fills on the rotary shaft, and bearing is mounted in bearing spider.When to load end face apply load
When, under the constraint of bearing and bearing spider, load end face can be rotated around bearing centre, i.e. load end face can be around rotary shaft
Axial line rotation.Loading also has recess portion on end face, recess portion is located on load end face towards the side of fixed end face.Thin-walled knot
Structure one end is mounted in recess portion, and the end face center line that can be designed so that the end of recess portion is overlapped with the axial line of rotary shaft, from
And when to load end face the axial line rotation around rotary shaft, drive thin-wall construction to be bent along its end face center line.It needs
Illustrate, the end surface shape that thin-wall construction is mounted on one end in recess portion is symmetrically, when thin-wall construction is along in its end face
When heart line is bent, the resultant force of the axial drawing, compressive load that are subject on end face is zero.
Specifically, as illustrated in fig. 1 and 2, thin-walled test specimen (thin-wall construction) 9 can turn the thin-wall construction of side for circle, wherein thin
Two end faces of wall test specimen 9 are respectively circular end face and square end surface.Wherein, circular end face can be connect with preceding load end face 1,
Square end surface is connect with rear fixed end face 7, before thin-walled test specimen 9 is fixed between load end face 1 and rear fixed end face 7.Preceding load
The shape of end face 1 and rear fixed end face 7 can according to need reasonable setting, such as can be set to rectangular or square bulk knot
Structure, thickness can also be set as different thickness according to actual needs.There is rotary shaft and recess portion on preceding load end face 1, wherein
Rotary shaft is supported by corresponding bearing 4, on the rotary shaft by the suit of bearing 4, and bearing 4 is fixed on bearing spider 2,3
On.Under the constraint of bearing 4 and support 2,3, preceding load end face 1 can realize the rotation around bearing centre by rotary shaft, i.e.,
Load end face can be rotated around the axial line of rotary shaft.Recess portion on preceding load end face 1 is located on preceding load end face 1 after
The side of fixed end face 7 is located at the junction of preceding load end face 1 and thin-walled test specimen 9, one end of thin-walled test specimen 9 is mounted on
In recess portion.When the depth of recess portion is arranged, it is required that thin-walled test specimen 9 should when one end of thin-walled test specimen 9 is mounted in recess portion
The end face center line at end is overlapped with the axial line of rotary shaft, so that preceding load end face 1 is rotated along the axial line of rotary shaft
When, it is able to drive thin-walled test specimen 9 and is bent along its end face center line.Using the recess portion and rotary shaft on preceding load end face 1, and
The flexural center of thin-walled test specimen 9 is limited to its end face center, and can thin-walled be tried by the constraint of bearing 4 and support 2,3
Part 9 will not generate additional axial drawing, compressive load in bending.
In an embodiment of the disclosure, loading device can also include loading end 6, and loading end 6 can be height
Rectangular block shape structure identical with preceding load end face 1, as shown in Figure 1, loading end 6 loads on end face 1 before being vertically mounted on
The one side opposite with recess portion.Preferably, in the end face at the center and thin-walled test specimen 9 of the center of loading end 6 and preceding load end face 1
Heart line is in the same plane.By applying load vertically downward at the center of the upper surface to loading end 6, add before can making
End face 1 is carried under the constraint of bearing 4 and support 2,3 around 4 center rotating of bearing, it can load end face 1 is around rotary shaft before making
Axial line rotation.
In an embodiment of the disclosure, loading device includes two coaxial rotary shafts, two coaxial rotations
Before axis is respectively symmetrically mounted on two opposite sides of load end face 1, each rotary shaft is supported by corresponding bearing 4, often
A bearing 4 is separately mounted in corresponding bearing spider 2,3.
In an embodiment of the disclosure, it is contemplated that the overall construction design of loading device, bearing spider 2,3 can be with
It is made of upper bearing (metal) support 2 and lower bearing support 3, as shown in Figure 1, the shape of upper bearing (metal) support 2 and lower bearing support 3 can be
Rectangular block shape structure, it is easy to disassemble to install and carry out cooperation assembling with bearing 4, and the size of rectangle can be according to actual needs
Rationally setting.The upper end of upper bearing (metal) support 2 and the lower end of lower bearing support 3 can have arc groove, be used for installation axle
4 are held, is fastened in bearing 4 between upper bearing (metal) support 2 and lower bearing support 3.Upper bearing (metal) support 2 and lower bearing support 3 can lead to
Bolt is crossed to be linked together.
In an embodiment of the disclosure, the depth of the recess portion on preceding load end face 1 can be expressed as d=D/2+t,
Wherein, d indicates the depth of recess portion, and D indicates that the diameter of rotary shaft, t indicate that thin-walled test specimen 9 is installed in the method for one end in recess portion
Blue thickness；General D > 2t.
In an embodiment of the disclosure, when 9 one end of thin-walled test specimen is connect by flange with preceding load end face 1,
It can set consistent with the cross sectional shape of flange for the cross sectional shape of recess portion, at this point, one end of thin-walled test specimen 9 can be connected to
In recess portion, the connection of thin-walled test specimen 9 and preceding load end face 1 will be stronger, is more advantageous to thin-walled test specimen 9 and carries out axial bending.
Junction in an embodiment of the disclosure, on rear fixed end face 7 with the square end surface of thin-walled test specimen 9
Recess portion can be set, the square end surface of thin-walled test specimen 9 is mounted in recess portion.The shape and size of the recess portion can rule of thumb and
Actual needs rationally setting, such as the circular recess that size is slightly larger than square end surface can be set into, as shown in figure 3, thin-walled tries
The square end surface of part 9 is mounted in the circular recess, is fixedly connected with thin-walled test specimen 9 with rear fixed end face 7.
Preferably, the square end surface of thin-walled test specimen 9 is fixedly connected by flange with rear fixed end face 7.
In an embodiment of the disclosure, multiple symmetrical adjustable installations can be set on rear fixed end face 7
Hole 10, such as the mounting hole of oblong are fixed end face 7 and are connected from the fixed of the thin-walled test specimen 9 with different face sizes after being used for
It connects.When the size of the end face of thin-walled test specimen 9 increases or reduces, it is only necessary to position of the adjustment connection bolt in adjustable mounting hole 10
It sets.
In an optional embodiment of the disclosure, as shown in Figure 1, loading device can also include bottom plate 5 and bracket
8, bracket 8 fixes the rear side of end face 7 after may be mounted at, and is used to support after fixing and fixes end face 7.Other portions of loading device
Part, including lower bearing support 3, rear fixed end face 7 and bracket 8 are fixedly mounted on bottom plate 5.It, can according to the length of thin-walled test specimen 9
To adjust the installation site of lower bearing support 3 Yu bottom plate 5, and the two position is lockked with screw.Bottom plate 5 is lain in into examination when test
It tests on platform.
Optionally, bracket 8 can be right angle rack, after being fixed after being mounted on right angle rack by screw on end face 7, then
Rear fixed end face 7 and right angle rack 8 are fixed on bottom plate 5.The quantity of right angle rack 8 can be 2 or multiple, install respectively
In the symmetrical position of rear fixed 7 rear side of end face.
As shown in Figure 1, by preceding load end face 1, rear fixed end face 7, upper bearing (metal) support 2, lower bearing support 3, bearing 4, bottom
When plate 5, loading end 6, bracket 8 and the combination installation of thin-walled test specimen 9, bottom and the bottom plate of load end face 1 and loading end 6 before should making
5 do not contact, i.e., certain space is reserved between preceding load end face 1 and the bottom and bottom plate 5 of loading end 6 for preceding load end face 1
Rotation.
In an embodiment of the disclosure, the load of thin-wall construction axial bending is carried out using above-mentioned loading device
Method the following steps are included:
Loading device is connect with Material Testing Machine, is applied by center of the Material Testing Machine to the upper surface of loading end 6
Load vertically downward；
The constraint of load and bearing 4 and support 2,3 based on this vertically downward, preceding load end face 1 by rotary shaft around
The center rotating of bearing 4, i.e., preceding load end face 1 are rotated around the axial line of rotary shaft；
Since the axial line and thin-walled test specimen 9 of the rotary shaft of preceding load end face 1 are mounted in the end face of one end in recess portion
Heart line is overlapped, and drives thin-walled test specimen 9 along in its end face when so that preceding load end face 1 is around the axial line rotation of rotary shaft
The bending of heart line, and the flexural center of thin-walled test specimen 9 is strictly limited at its end face center and does not generate additional axial drawing, ballast
Lotus.
In conclusion the thin-wall construction axial bending loading device of the disclosure, for unsymmetrical section in the prior art
Or the irregular geometry of bending Path of Force Transfer tests loading problem along the axial bending of center line, and it is outstanding to realize thin-wall construction
It is that circle turns the asymmetric thin-wall constructions such as side, rectangular bend, rectangle variable cross-section along the bending of end face center line, while not generating volume
It is outer it is axial draw, the effect of compressive load, the loading device structure of the disclosure is simple, facilitates installation and test, and effect is reliable.
It will be understood by those of skill in the art that above embodiment is used for the purpose of clearly demonstrating the disclosure, and simultaneously
Non- be defined to the scope of the present disclosure.For those skilled in the art, may be used also on the basis of disclosed above
To make other variations or modification, and these variations or modification are still in the scope of the present disclosure.
Claims (9)
1. a kind of thin-wall construction axial bending loading device comprising load end face and fixed end face, in the load end face and
The thin-wall construction is fixed between fixed end face, in which:
Rotary shaft is installed on the load end face, the rotary shaft is supported by bearing, and the bearing is mounted on bearing spider
In, when applying load to the load end face, the load end face can be rotated around the axial line of the rotary shaft；
The load end face also has recess portion on the side towards the fixed end face, and the recess portion is sized so that
When by the installation of one end of the thin-wall construction within the recess, the end face center line at the end of the thin-wall construction with it is described
The axial line of rotary shaft is overlapped, to realize in axial line rotation of the load end face around the rotary shaft, the thin-walled
Structure is bent along the end face center line.
2. loading device according to claim 1, which is characterized in that
The loading device further includes loading end, and the loading end is mounted on the load end face, by the loading end
Apply load, the load end face can be made to rotate around the axial line of the rotary shaft.
3. loading device according to claim 1 or 2, which is characterized in that
There is adjustable mounting hole, the thin-wall construction with different face sizes is fixedly mounted on the fixed end face.
4. loading device according to any one of claim 1-3, which is characterized in that
The loading device includes two coaxial rotary shafts, and each rotary shaft is supported by corresponding bearing, each bearing installation
In its bearing spider.
5. loading device according to claim 4, which is characterized in that
The bearing spider includes upper bearing (metal) support and lower bearing support, and the bearing is mounted on the upper bearing (metal) support and lower axle
It holds between support.
6. loading device according to claim 5, which is characterized in that
The loading device further includes bracket and bottom plate, and the bracket is used to support the fixed fixed end face；The bracket, institute
It states fixed end face and the lower bearing support is mounted on the bottom plate.
7. loading device according to claim 1, which is characterized in that
The expression formula of the depth of the recess portion is d=D/2+t, wherein d indicates the depth of the recess portion, and D indicates the rotary shaft
Diameter, t indicates the flange thickness of mounted one end within the recess of the thin-wall construction.
8. loading device according to claim 7, which is characterized in that
The cross sectional shape of the recess portion is consistent with the cross sectional shape of the flange.
9. loading device according to claim 2, which is characterized in that
Apply load vertically downward to the loading end at the upper surface center of the loading end by Material Testing Machine.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910449781.5A CN110108577B (en) | 2019-05-28 | 2019-05-28 | Axial bending loading device for thin-wall structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910449781.5A CN110108577B (en) | 2019-05-28 | 2019-05-28 | Axial bending loading device for thin-wall structure |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN110108577A true CN110108577A (en) | 2019-08-09 |
| CN110108577B CN110108577B (en) | 2021-11-19 |
Family
ID=67492532
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910449781.5A Active CN110108577B (en) | 2019-05-28 | 2019-05-28 | Axial bending loading device for thin-wall structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110108577B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111521499A (en) * | 2020-05-21 | 2020-08-11 | 中国矿业大学(北京) | Device and method for asymmetric stress loading of deep-ground engineering similar physical simulation experiment |
Citations (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH045541A (en) * | 1990-04-23 | 1992-01-09 | Fujitsu Ltd | Bending fatigue testing device |
| CN102998186A (en) * | 2011-09-19 | 2013-03-27 | 汤浅系统机器株式会社 | Distort test apparatus of flat surface shaped body |
| CN103364285A (en) * | 2013-06-20 | 2013-10-23 | 西南交通大学 | Test method for testing bending fatigue life of film |
| CN204188469U (en) * | 2014-09-25 | 2015-03-04 | 江苏远航电缆附件有限公司 | 110kV composite sheath bending strength test frock |
| CN104931367A (en) * | 2015-06-25 | 2015-09-23 | 北京建筑大学 | Movement life tester for upper limb joints of hermetic pressure extravehicular spacesuit |
| CN106290026A (en) * | 2016-09-29 | 2017-01-04 | 华南理工大学 | A kind of rotary bending tester |
| CN107607393A (en) * | 2017-09-08 | 2018-01-19 | 燕山大学 | A kind of sheet material center curvature test fixture and loading head |
| CN109142109A (en) * | 2018-08-02 | 2019-01-04 | 河北工业大学 | Shaft radial load loading device |
| CN109163973A (en) * | 2018-09-30 | 2019-01-08 | 上海交通大学 | A kind of thin-wall tube sample loading device |
| US10190967B1 (en) * | 2018-07-23 | 2019-01-29 | Kuwait Institute For Scientific Research | Fatigue cracking machine for circumferential notched tensile specimens |
| CN109459322A (en) * | 2018-12-11 | 2019-03-12 | 安徽大学 | Precise humanoid rod pure bending moment experimental device |
| KR20190026207A (en) * | 2017-09-04 | 2019-03-13 | 김영삼 | Test apparatus for bending reliability |
-
2019
- 2019-05-28 CN CN201910449781.5A patent/CN110108577B/en active Active
Patent Citations (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH045541A (en) * | 1990-04-23 | 1992-01-09 | Fujitsu Ltd | Bending fatigue testing device |
| CN102998186A (en) * | 2011-09-19 | 2013-03-27 | 汤浅系统机器株式会社 | Distort test apparatus of flat surface shaped body |
| CN103364285A (en) * | 2013-06-20 | 2013-10-23 | 西南交通大学 | Test method for testing bending fatigue life of film |
| CN204188469U (en) * | 2014-09-25 | 2015-03-04 | 江苏远航电缆附件有限公司 | 110kV composite sheath bending strength test frock |
| CN104931367A (en) * | 2015-06-25 | 2015-09-23 | 北京建筑大学 | Movement life tester for upper limb joints of hermetic pressure extravehicular spacesuit |
| CN106290026A (en) * | 2016-09-29 | 2017-01-04 | 华南理工大学 | A kind of rotary bending tester |
| KR20190026207A (en) * | 2017-09-04 | 2019-03-13 | 김영삼 | Test apparatus for bending reliability |
| CN107607393A (en) * | 2017-09-08 | 2018-01-19 | 燕山大学 | A kind of sheet material center curvature test fixture and loading head |
| US10190967B1 (en) * | 2018-07-23 | 2019-01-29 | Kuwait Institute For Scientific Research | Fatigue cracking machine for circumferential notched tensile specimens |
| CN109142109A (en) * | 2018-08-02 | 2019-01-04 | 河北工业大学 | Shaft radial load loading device |
| CN109163973A (en) * | 2018-09-30 | 2019-01-08 | 上海交通大学 | A kind of thin-wall tube sample loading device |
| CN109459322A (en) * | 2018-12-11 | 2019-03-12 | 安徽大学 | Precise humanoid rod pure bending moment experimental device |
Non-Patent Citations (1)
| Title |
|---|
| 张子骞: "薄壁管材纯弯曲后截面残留扁化变形预测", 《机械工程学报》 * |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111521499A (en) * | 2020-05-21 | 2020-08-11 | 中国矿业大学(北京) | Device and method for asymmetric stress loading of deep-ground engineering similar physical simulation experiment |
Also Published As
| Publication number | Publication date |
|---|---|
| CN110108577B (en) | 2021-11-19 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN206177547U (en) | General type pipe vibration anchor clamps | |
| CN110108577A (en) | Thin-wall construction axial bending loading device | |
| CN106971677B (en) | A kind of culture medium information propagating equipment | |
| CN105115889A (en) | Multispecimen adhesive-bonded joint creep experiment loading device | |
| RU2011121851A (en) | DUST CAMERA AND METHOD FOR TESTING AN ELECTRONIC INSTRUMENT IN THE DUST CAMERA | |
| CN109556865B (en) | Wing body combined model support for air inlet channel test | |
| CN1752746A (en) | Method and device for flaw detection of magnetic powder | |
| CN106402110A (en) | Tool for pasting strain gage on aero-engine pipeline | |
| CN108747910A (en) | A kind of electron accelerator accelerating tube stickup tooling | |
| CN107795702B (en) | Air-flow quantity regulating device and flow control system | |
| CN206320492U (en) | A kind of multi-angle regulation support installed in non-perpendicular metope | |
| CN111487027A (en) | Airborne external longitudinal vibration test platform | |
| TW200417726A (en) | Probe holder | |
| CN204165217U (en) | The testing arrangement of air-conditioner indoor wall on-hook | |
| CN104443449B (en) | Deploy the porous metal material air-floating apparatus and its method of experiment for satellite annex | |
| CN218468452U (en) | Exhaust gas pipeline fixing device suitable for universal cover | |
| CN108361819A (en) | Connecting pipe fixing piece, heat exchanger with same and air conditioner indoor unit | |
| CN207114950U (en) | A kind of pneumatic air supply system and cycle detection equipment for cycle detection equipment | |
| CN208645150U (en) | A kind of electron accelerator accelerating tube stickup tooling | |
| CN108216696B (en) | Band cylinder bilayer Anti-splash molsink and the cooling means of ground electric propulsion test | |
| CN103574882B (en) | Air conditioner and evaporator supporting device thereof | |
| CN212988747U (en) | Airborne external longitudinal vibration test platform | |
| CN109482603A (en) | Frock clamp and crystal clamping and loading method | |
| CN108340357A (en) | A kind of five degree of freedom floating compensation device | |
| CN212159711U (en) | Chromatograph |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |