CN104764663B - A kind of blade stretching testing machine - Google Patents
A kind of blade stretching testing machine Download PDFInfo
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- CN104764663B CN104764663B CN201510184070.1A CN201510184070A CN104764663B CN 104764663 B CN104764663 B CN 104764663B CN 201510184070 A CN201510184070 A CN 201510184070A CN 104764663 B CN104764663 B CN 104764663B
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- blade
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- 238000012360 testing method Methods 0.000 title claims abstract description 43
- 241000239290 Araneae Species 0.000 claims abstract description 17
- 230000006835 compression Effects 0.000 claims abstract description 17
- 238000007906 compression Methods 0.000 claims abstract description 17
- 210000002421 cell wall Anatomy 0.000 claims abstract description 4
- 230000002787 reinforcement Effects 0.000 claims description 4
- 230000005611 electricity Effects 0.000 claims description 2
- 230000002093 peripheral effect Effects 0.000 claims 1
- 238000001514 detection method Methods 0.000 abstract description 4
- 238000010586 diagram Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 238000004088 simulation Methods 0.000 description 2
- 238000012937 correction Methods 0.000 description 1
- 230000007123 defense Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000005272 metallurgy Methods 0.000 description 1
- 238000009864 tensile test Methods 0.000 description 1
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Abstract
A kind of blade stretching testing machine, electric cylinder is provided with its lower bearing bracket, electric cylinder output shaft is connected by mounting flange with pull pressure sensor, the pull pressure sensor is connected with pressure axle lower end, open and be connected with lower clamp seat in the tension and compression axle upper end, lower clamp seat upper end is provided with two parallel lower T-slots, each two T-bolt I are respectively provided with lower T-slot, this two T-bolt I is respectively provided in the through hole set by the clamping jaw of lower clamp two again, upper fixture is provided with above lower clamp, vertical component is provided with open slot, both sides cell wall is provided with through hole, bearing pin is provided with through hole, upper fixture is movably arranged on upper spider top plate by the cooperation of four T-bolt II and two upper T-slots, this on two T-slot be parallel to each other, and it is vertical with the lower T-slot on lower clamp.The present invention can be carried out easily in before pulling force loading is carried out to blade test specimen to blade test specimen, so as to be conducive to improving the accuracy of detection of the drag load on blade test specimen.
Description
Technical field
The present invention relates to a kind of machine-building cupping machine.
Background technology
Air compressor is widely used in the fields such as aviation, petrochemical industry, metallurgy, blade be compressor critical piece it
One, as high-speed rotating component, blade under arms during bear the alternate stress of complexity, what is be distributed in blade material is mingled with
Thing and inevitable fault in material cause the fatigue fracture accident of compressor blade often to occur, and very big damage is caused to economy
Lose.With China's national defense industry and the fast development of Aero-Space, more and more stricter is required to blade, therefore, simulation blade
Actual stretching operating mode, Accurate Prediction goes out the bearing capacity of blade, and then has important to blade fatigue performance progress overall merit
Meaning.In air compressor field, the blade stretching testing machine of the actual stretching operating mode of accurate simulation blade, which turns into, carries out blade material
The selection of material, structure design and the essential means of practical application.
In the prior art, " a kind of tensile testing machine " (Chinese patent：201210482010.4), the testing machine is provided with
Be provided with one fixture and the second fixture, the first fixture on the first chuck, the second fixture and be provided with the second chuck, the first chuck and
The opposite face of second chuck is provided with groove, and the groove is used for fixing the end of test specimen, facilitates testing machine to carry out pulling force examination to it
Test.But because the first fixture and the second fixture are respectively and fixedly installed in frame and crossbeam, make test specimen can not before being tested
Position correction is carried out, the centering of test specimen is influenceed, and then influence the accuracy of detection of the drag load in process of the test on test specimen.
The content of the invention
Easily blade can be tried before pulling force loading is carried out to blade test specimen it is an object of the invention to provide one kind
Part carries out centering to improve the blade stretching testing machine of the drag load accuracy of detection on blade test specimen.
Technical scheme is specific as follows：
The invention mainly comprises：Frame, electric cylinder, pull pressure sensor, pressure axle, lower clamp and upper fixture.Wherein,
Lower bearing bracket upper end is provided with the upper spider for being secured to connection, and the upper spider upper end is provided with top plate, and the upper surface of itself and lower bearing bracket is put down
OK, and both of which and whole frame basal plane it is parallel.The dividing plate being connected in the middle part of upper spider provided with periphery with upper spider.Most
Good, rack level part is all provided with reinforcement with vertical portion junction up and down.Electric cylinder is provided with lower bearing bracket, it is by through electricity
The fastener of dynamic cylinder flange is fixed on lower bearing bracket upper surface.Electric cylinder output shaft passes through the corresponding through hole upper end in lower bearing bracket upper surface
Threaded section is threadedly coupled with mounting flange.Preferably, it is provided with stop nut in output shaft lower end.The mounting flange is by wearing
The flange connection crossed on the bolt and pull pressure sensor of through hole thereon.The screw at the pull pressure sensor center and pressure axle
Lower end is threadedly coupled, and location nut is provided with preferably on tension and compression axle.The tension and compression axle is upward through the through hole on dividing plate, the tension and compression axle
Linear bearing is cased with outside part corresponding with dividing plate, linear bearing seat is cased with outside the linear bearing, outside the linear bearing seat
If adpting flange, linear bearing seat is fixed on dividing plate by the fastener through flange through hole.Tension and compression axle upper end threaded portion
Divide and be threadedly coupled with the lower clamp seat semi-transparent center screw that Open Side Down, preferably, tension and compression axle upper end sets stop nut.Lower clamp seat
Upper end is provided with two parallel lower T-slots, each T-slot and is respectively provided with two T-bolt I, and this two T-bolts I is set respectively again
In the through hole set by the clamping jaw of lower clamp two, lower clamp is set to be flexibly connected with lower clamp seat.The lower clamp has two bottoms to be connected
Clamping jaw, both following clamp central faces are symmetrical, and the relative channel space top spacing constituted of two clamping jaws is small, with test specimen stage casing
Vane thickness is corresponding, and bottom spacing is big, corresponding with canned paragraph block under test specimen.Upper fixture is provided with above lower clamp, its
T-shaped, vertical component is provided with open slot, and both sides cell wall is provided with through hole corresponding with canned paragraph block central through hole on test specimen,
Bearing pin is provided with through hole.Upper fixture is movably arranged on upper spider top plate by the cooperation of four T-bolt II and two upper T-slots
It is upper that (i.e. upper fixture can be moved along the length direction of upper T-slot below upper spider top plate, and be fixed by T-bolt II
Position), in addition, this on two T-slot be parallel to each other, it is and vertical with the lower T-slot on lower clamp.
The present invention test process approximately as：Upper fixture is hinged by the upper end of bearing pin and blade test specimen, blade test specimen
Lower end be installed in the groove profile space that two clamping jaws of lower clamp are surrounded.Before pulling force loading is carried out to blade test specimen, pass through
The mobile T-bolt II being located in upper two T-slots, front and back position of the regulation upper fixture on upper spider top plate, then move position
T-bolt I in two lower T-slots, the position of regulation lower clamp left and right on lower clamp seat, just can be in blade test specimen
Vertical state, and then complete the centering of blade test specimen.Then tested, startup power supply, open PLC intelligence control systems, control
Loading of the electric cylinder processed to blade test specimen.Pulling force signal detected by pull pressure sensor passes to calculating by data switch card
Handled in machine.
The present invention has the following advantages that compared with prior art：The present invention can be with before pulling force loading is carried out to blade test specimen
Centering easily is carried out to blade test specimen, so as to be conducive to improving the accuracy of detection of the drag load on blade test specimen.
Brief description of the drawings
Fig. 1 is use state main view section simplified schematic diagram of the present invention.
Fig. 2 is the partial enlarged drawing at D in Fig. 1.
Fig. 3 is the partial enlarged drawing at E in Fig. 1.
Fig. 4 is the partial enlarged drawing at F in Fig. 1.
Fig. 5 is the sectional view in A-A faces in Fig. 1.
Fig. 6 is the sectional view in B-B faces in Fig. 1.
Fig. 7 is the sectional view in C-C faces in Fig. 1.
Fig. 8 is the schematic perspective view of blade test specimen.
In figure：1st, reinforcement, 2, lower bearing bracket, 3, electric cylinder, 4, electric cylinder flange, 5, T-bolt I, 6, electric cylinder output
Axle, 7, nut, 8, upper spider, 9, mounting flange, 10, pull pressure sensor.11st, nut, 12, upper T-slot, 13, tension and compression axle,
14th, linear bearing, 15, linear bearing seat, 16, blade test specimen, 17, nut, 18, lower T-slot, 19, lower clamp seat, 20, lower folder
Tool, 21, bearing pin, 22, upper fixture, 23, top plate, 24, dividing plate, 25, T-bolt II.
Embodiment
In the use state main view section simplified schematic diagram of the blade stretching testing machine shown in Fig. 1, the upper end of lower bearing bracket 2 is provided with
The upper spider 8 of connection is secured to, the upper spider upper end is provided with top plate 23, and it is parallel with the upper surface of lower bearing bracket, and both
With whole frame basal plane it is parallel.The dividing plate 24 being connected in the middle part of upper spider provided with periphery with upper spider.Upper and lower rack level
Part is all provided with reinforcement 1 with vertical portion junction.Electric cylinder 3 is provided with lower bearing bracket, it is by through the tight of electric cylinder flange 4
Firmware is fixed on lower bearing bracket upper surface, as shown in figure 4, electric cylinder output shaft 6 passes through the corresponding through hole upper end in lower bearing bracket upper surface
Threaded section is threadedly coupled with mounting flange 9.Stop nut 7 is provided with output shaft.The mounting flange by through its
The bolt of upper through hole is connected with the flange in pull pressure sensor 10.Under the screw and tension and compression axle 13 at the pull pressure sensor center
End threaded connection, is provided with location nut 11 on tension and compression axle.The tension and compression axle is upward through the through hole on dividing plate, the tension and compression axle with every
Plate is cased with linear bearing 14 outside corresponding part, linear bearing seat 15 is cased with outside the linear bearing, outside the linear bearing seat
If adpting flange, linear bearing seat is fixed on dividing plate by the fastener through flange through hole, as shown in Figure 3 and Figure 7.Tension and compression
The semi-transparent center screw that Open Side Down of axle upper end threaded section and lower clamp seat 19 is threadedly coupled, and tension and compression axle upper end is limited a spiral shell
Mother 17, as shown in Fig. 2 lower clamp seat upper end is provided with two parallel lower T-slots 18, be each respectively provided with lower T-slot two it is T-shaped
Bolt I 5, this two T-bolt I are respectively provided in the through hole set by 20 liang of clamping jaws of lower clamp again, make lower clamp and lower clamp seat living
Dynamic connection.The lower clamp has the connected clamping jaw in two bottoms, and both following clamp central faces are symmetrical, and two clamping jaws are with respect to composition
Channel space top spacing is small, as shown in fig. 6, corresponding with the stage casing vane thickness of test specimen 16, bottom spacing is big, with consolidating under test specimen
Determine section block corresponding, as shown in Figure 8.Upper fixture 22 is provided with above lower clamp, its is T-shaped, vertical component is provided with open slot,
Both sides cell wall is provided with as shown in Figure 5 provided with bearing pin 21 in through hole corresponding with canned paragraph block central through hole on test specimen, through hole.
Upper fixture is movably arranged on upper spider top plate by the cooperations of the upper T-slots 12 of four T-bolt II and two, in addition, this two
Upper T-slot 12 is parallel to each other, and vertical with the lower T-slot 18 on lower clamp.
Claims (4)
1. a kind of blade stretching testing machine, it is characterised in that：Lower bearing bracket upper end is provided with the upper spider for being secured to connection, machine on this
Frame upper end is provided with top plate, its with lower bearing bracket and whole frame basal plane it is parallel, periphery and upper spider phase are provided with the middle part of upper spider
Dividing plate even, is provided with electric cylinder, it is fixed on lower bearing bracket upper surface by the fastener through electric cylinder flange in lower bearing bracket, electricity
Dynamic cylinder output shaft is threadedly coupled through the corresponding through hole upper end threaded section in lower bearing bracket upper surface with mounting flange, the connection
Flange connection of the ring flange on the bolt and pull pressure sensor through through hole thereon, the screw at the pull pressure sensor center
It is threadedly coupled with pressure axle lower end, the tension and compression axle is upward through the through hole on dividing plate, tension and compression axle part corresponding with dividing plate
Outside is cased with linear bearing, is cased with linear bearing seat outside the linear bearing, the linear bearing seat peripheral hardware adpting flange, by through
Linear bearing seat is fixed on dividing plate by the fastener of flange through hole, tension and compression axle upper end threaded section and lower clamp seat be open to
Under the threaded connection of semi-transparent center screw, lower clamp seat upper end is provided with two parallel lower T-slots, is respectively provided with each T-slot
Two T-bolt I, this two T-bolt I is respectively provided in the through hole set by the clamping jaw of lower clamp two again, and the lower clamp has under two
The connected clamping jaw in portion, both following clamp central faces are symmetrical, and the relative channel space top spacing constituted of two clamping jaws is small, with examination
Part stage casing vane thickness is corresponding, and bottom spacing is big, corresponding with canned paragraph block under test specimen, and upper folder is provided with above lower clamp
Tool, its is T-shaped, and vertical component is provided with open slot, and both sides cell wall is provided with corresponding with canned paragraph block central through hole on test specimen
Bearing pin is provided with through hole, through hole；Upper fixture is movably arranged on upper machine by the cooperation of four T-bolt II and two upper T-slots
On frame top plate, in addition, this on two T-slot be parallel to each other, it is and vertical with the lower T-slot on lower clamp.
2. blade stretching testing machine according to claim 1, it is characterised in that：Rack level part and vertical portion up and down
Junction is all provided with reinforcement.
3. blade stretching testing machine according to claim 1 or 2, it is characterised in that：Provided with limit on electric cylinder output shaft
Position nut.
4. blade stretching testing machine according to claim 1 or 2, it is characterised in that：It is equipped with tension and compression axle upper and lower ends
Location nut.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510184070.1A CN104764663B (en) | 2015-04-17 | 2015-04-17 | A kind of blade stretching testing machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510184070.1A CN104764663B (en) | 2015-04-17 | 2015-04-17 | A kind of blade stretching testing machine |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104764663A CN104764663A (en) | 2015-07-08 |
| CN104764663B true CN104764663B (en) | 2017-08-04 |
Family
ID=53646629
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510184070.1A Expired - Fee Related CN104764663B (en) | 2015-04-17 | 2015-04-17 | A kind of blade stretching testing machine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104764663B (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106353178B (en) * | 2016-09-28 | 2019-02-15 | 攀钢集团研究院有限公司 | A kind of Gleeble loading tool being less than graphite flake and tantalum piece radius suitable for radius of specimen |
| CN107084098A (en) * | 2017-06-02 | 2017-08-22 | 北京金风科创风电设备有限公司 | Blade wrinkle defect judging method |
| CN110836831B (en) * | 2019-12-02 | 2024-06-04 | 吉林大学 | Coaxiality adjusting device and method for testing machine |
| CN110726637B (en) * | 2019-12-02 | 2024-06-04 | 吉林大学 | Centering adjustment device and centering adjustment method |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1928529A (en) * | 2005-09-09 | 2007-03-14 | 侯贵仓 | Test clamp for disc blade of aircraft engine |
| JP2010271150A (en) * | 2009-05-20 | 2010-12-02 | Sanko Techno Co Ltd | Testing machine support table, tensile test method of fastener, unit for tensile test, and method of performing mounting construction of property to building structure |
| CN102759437B (en) * | 2011-04-28 | 2015-06-10 | 株洲南车时代电气股份有限公司 | Fixture for vibration test and mounting method thereof |
| CN202643099U (en) * | 2012-05-16 | 2013-01-02 | 中船澄西船舶修造有限公司 | Novel blade hoisting clamp |
| CN103009532B (en) * | 2012-12-25 | 2015-12-09 | 秦川机床工具集团股份公司 | A kind of conformal glue injection jig of blade of aviation engine and clamping method |
| CN203148788U (en) * | 2013-04-04 | 2013-08-21 | 哈尔滨理工大学 | Mechanical tensile experiment testing device |
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2015
- 2015-04-17 CN CN201510184070.1A patent/CN104764663B/en not_active Expired - Fee Related
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| CN104764663A (en) | 2015-07-08 |
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Granted publication date: 20170804 |