CN104764663A - Blade stretching testing machine - Google Patents
Blade stretching testing machine Download PDFInfo
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- CN104764663A CN104764663A CN201510184070.1A CN201510184070A CN104764663A CN 104764663 A CN104764663 A CN 104764663A CN 201510184070 A CN201510184070 A CN 201510184070A CN 104764663 A CN104764663 A CN 104764663A
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- slot
- testing machine
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- 238000012360 testing method Methods 0.000 title claims abstract description 47
- 230000006835 compression Effects 0.000 claims description 19
- 238000007906 compression Methods 0.000 claims description 19
- 241000239290 Araneae Species 0.000 claims description 18
- 230000002787 reinforcement Effects 0.000 claims description 4
- 210000002421 cell wall Anatomy 0.000 claims description 3
- 230000002093 peripheral effect Effects 0.000 claims description 3
- 238000001514 detection method Methods 0.000 abstract description 4
- 238000000034 method Methods 0.000 description 4
- 238000010586 diagram 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
- 238000011156 evaluation Methods 0.000 description 1
- 230000002401 inhibitory effect Effects 0.000 description 1
- 238000005272 metallurgy Methods 0.000 description 1
- 238000009864 tensile test Methods 0.000 description 1
Abstract
The invention relates to a blade stretching testing machine. An electric cylinder is arranged in a lower rack, the output shaft of the electric cylinder is connected with a pulling force and pressure sensor by a connecting flange plate, the pulling force and pressure sensor is connected with the lower end of a pulling force and pressure shaft, the upper end of the pulling force and pressure shaft is in opening connection with a lower clamp base, the upper end of the lower clamp base is provided with two parallel lower T-shaped grooves, two T-shaped bolts I are arranged in each lower T-shaped groove, the two T-shaped bolts I are arranged in through holes of two clamping jaws of a lower clamp respectively, an upper clamp is arranged above the lower clamp, an opening groove is formed at a vertical part, through holes are formed on the groove walls at two sides, a hinge pin is arranged in the through hole, the upper clamp is movably arranged on the top plate of an upper rack by cooperation of the four T-shaped bolts II and two upper T-shaped grooves, two upper T-shaped grooves are parallel and are perpendicular to the lower T-shaped grooves on the lower clamp. The blade stretching testing machine can realize centering to a blade test piece conveniently before carrying out tensile loading on the blade test piece, and the detection precision of the tensile load on the blade test piece can be improved beneficially.
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 is one of critical piece of compressor, as high-speed rotating component, blade bears complicated alterante stress in process under arms, the snotter distributed in blade material and inevitable fault in material cause the fatigue break accident of compressor blade often to occur, and cause very large loss to economy.Along with China's national defense industry and aerospace fast development, require more and more stricter to blade, therefore, the actual stretching operating mode of simulation blade, Accurate Prediction goes out the load-bearing capacity of blade, and then carries out comprehensive evaluation important in inhibiting to blade fatigue performance.In air compressor field, the blade stretching testing machine of the actual stretching operating mode of accurate simulation blade becomes the selection carrying out blade material, structural design and the requisite means of practical application.
In prior art, " a kind of tension tester " (Chinese patent: 201210482010.4), this testing machine is provided with the first fixture and the second fixture, first fixture is provided with the first chuck, second fixture is provided with the second chuck, the opposite face of the first chuck and the second chuck is provided with groove, and this groove is used for fixing the end of test specimen, facilitates testing machine to carry out tensile test to it.But because the first fixture and the second fixture are fixedly mounted on frame and crossbeam respectively, make test specimen can not carry out position correction before testing, affect the centering of test specimen, and then affect the accuracy of detection of the drag load in process of the test on test specimen.
Summary of the invention
The object of the present invention is to provide and a kind ofly can carry out centering to improve the blade stretching testing machine of the drag load accuracy of detection on blade test specimen to blade test specimen easily before pulling force loading is carried out to blade test specimen.
Technical scheme of the present invention is specific as follows:
The present invention mainly comprises: frame, electric cylinder, pull pressure sensor, tension and compression mechanical axis, lower clamp and upper fixture.Wherein, lower bearing bracket upper end is provided with the upper spider be fixedly connected with it, and this upper spider upper end is provided with top board, and it is parallel with the upper surface of lower bearing bracket, and both are all parallel with whole frame ground basal plane.The dividing plate that periphery is connected with upper spider is provided with in the middle part of upper spider.Best, reinforcement is all established in upper and lower rack level part and vertical portion junction.In lower bearing bracket, be provided with electric cylinder, it is fixed on lower bearing bracket upper surface by the securing member through electric cylinder flange.Electric cylinder output shaft is threaded with mounting flange through the through hole upper end threaded section that lower bearing bracket upper surface is corresponding.Best, be provided with stop nut in output shaft lower end.This mounting flange is by through the Flange joint on the bolt of through hole on it and pull pressure sensor.The screw at this pull pressure sensor center is threaded with tension and compression mechanical axis lower end, preferably on tension and compression axle, is provided with setscrew nut.These tension and compression are axially through the through hole on dividing plate, the outer surface cover of the part that this tension and compression axle is corresponding with dividing plate has linear bearing, the outer surface cover of this linear bearing has linear axis bearing, this linear axis bearing peripheral hardware joint flange, linear axis bearing is fixed on dividing plate by the securing member through flange through hole.Tension and compression axle upper end threaded section is threaded with the lower clamp seat semi-transparent center screw that Open Side Down, best, and stop nut is established in tension and compression axle upper end.Lower clamp seat upper end is provided with two parallel lower T-slot, all arranges two T-shaped bolt I in each T-slot, and this two T-shaped bolt I is located at again in the through hole set by lower clamp two jaw respectively, and lower clamp is flexibly connected with lower clamp seat.The jaw that this lower clamp has two bottoms to be connected, both following clamp central faces are symmetrical, and the channel space top spacing that two jaws are formed relatively is little, corresponding with test specimen stage casing vane thickness, and bottom spacing is large, corresponding with canned paragraph block under test specimen.Fixture on being provided with above lower clamp, it is T-shaped, and vertical component is provided with open slot, and both sides cell wall is provided with the through hole corresponding with canned paragraph block central through hole on test specimen, is provided with bearing pin in through hole.Upper fixture is coordinated to be movably arranged on upper spider top board (namely gone up fixture to move along the below of the length direction of upper T-slot at upper spider top board by four T-shaped bolt II and two upper T-slot, and by T-shaped bolt II fixed position), in addition, this on two T-slot be parallel to each other, and vertical with the lower T-slot on lower clamp.
Test process of the present invention is roughly as follows: upper fixture is by the upper end thereof of bearing pin and blade test specimen, and the lower end of blade test specimen is installed in the grooved space that lower clamp two jaws surround.Before pulling force loading is carried out to blade test specimen, by the mobile T-shaped bolt II being arranged in upper two T-slot, the front and back position of fixture on upper spider top board in adjustment, movement is arranged in the T-shaped bolt I of two lower T-slot again, regulate the position of lower clamp left and right on lower clamp seat, just blade test specimen can be made to be in vertical state, and then to complete the centering of blade test specimen.Then test, start power supply, open PLC intelligent control system, control electric cylinder to the loading of blade test specimen.Pulling force signal detected by pull pressure sensor is passed in computing machine by data switch card and processes.
The present invention compared with prior art tool has the following advantages: the present invention can carry out centering to blade test specimen easily before carrying out pulling force loading to blade test specimen, thus is conducive to the accuracy of detection of the drag load improved on blade test specimen.
Accompanying drawing explanation
Fig. 1 is that using state master of the present invention looks section simplified schematic diagram.
Fig. 2 is the partial enlarged drawing at D place in Fig. 1.
Fig. 3 is the partial enlarged drawing at E place in Fig. 1.
Fig. 4 is the partial enlarged drawing at F place in Fig. 1.
Fig. 5 is the cut-open view in A-A face in Fig. 1.
Fig. 6 is the cut-open view in B-B face in Fig. 1.
Fig. 7 is the cut-open view in C-C face in Fig. 1.
Fig. 8 is the schematic perspective view of blade test specimen.
In figure: 1, reinforcement, 2, lower bearing bracket, 3, electric cylinder, 4, electric cylinder flange, 5, T-shaped bolt I, 6, electric cylinder output shaft, 7, nut, 8, upper spider, 9, mounting flange, 10, pull pressure sensor.11, nut, 12, upper T-slot, 13, tension and compression axle, 14, linear bearing, 15, linear axis bearing, 16, blade test specimen, 17, nut, 18, lower T-slot, 19, lower clamp seat, 20, lower clamp, 21, bearing pin, 22, upper fixture, 23, top board, 24, dividing plate, 25, T-shaped bolt II.
Embodiment
Look in section simplified schematic diagram the using state master of the blade stretching testing machine shown in Fig. 1, lower bearing bracket 2 upper end is provided with the upper spider 8 be fixedly connected with it, this upper spider upper end is provided with top board 23, and it is parallel with the upper surface of lower bearing bracket, and both are all parallel with whole frame ground basal plane.The dividing plate 24 that periphery is connected with upper spider is provided with in the middle part of upper spider.Reinforcement 1 is all established in upper and lower rack level part and vertical portion junction.In lower bearing bracket, be provided with electric cylinder 3, it is fixed on lower bearing bracket upper surface by the securing member through electric cylinder flange 4, and as shown in Figure 4, electric cylinder output shaft 6 is threaded with mounting flange 9 through the through hole upper end threaded section that lower bearing bracket upper surface is corresponding.Output shaft is provided with stop nut 7.This mounting flange is by through the Flange joint on the bolt of through hole on it and pull pressure sensor 10.The screw at this pull pressure sensor center is threaded with tension and compression axle 13 lower end, and tension and compression axle is provided with setscrew nut 11.These tension and compression are axially through the through hole on dividing plate, the outer surface cover of the part that this tension and compression axle is corresponding with dividing plate has linear bearing 14, the outer surface cover of this linear bearing has linear axis bearing 15, this linear axis bearing peripheral hardware joint flange, by the securing member through flange through hole, linear axis bearing is fixed on dividing plate, as shown in Figure 3 and Figure 7.Tension and compression axle upper end threaded section is threaded with the lower clamp seat 19 semi-transparent center screw that Open Side Down, stop nut 17 is established in tension and compression axle upper end, as shown in Figure 2, lower clamp seat upper end is provided with two parallel lower T-slot 18, two T-shaped bolt I 5 are all set in each lower T-slot, this two T-shaped bolt I is located at again in the through hole set by lower clamp 20 liang of jaws respectively, and lower clamp is flexibly connected with lower clamp seat.The jaw that this lower clamp has two bottoms to be connected, both following clamp central faces are symmetrical, and the channel space top spacing that two jaws are formed relatively is little, as shown in Figure 6, corresponding with test specimen 16 stage casing vane thickness, bottom spacing is large, corresponding with canned paragraph block under test specimen, as shown in Figure 8.Fixture 22 on being provided with above lower clamp, it is T-shaped, and vertical component is provided with open slot, and both sides cell wall is provided with the through hole corresponding with canned paragraph block central through hole on test specimen, is provided with bearing pin 21 as shown in Figure 5 in through hole.Upper fixture upper is movably arranged on upper spider top board by four T-shaped bolt II with two coordinating of T-slot 12, in addition, this on two T-slot 12 be parallel to each other, and vertical with the lower T-slot 18 on lower clamp.
Claims (4)
1. a blade stretching testing machine, it is characterized in that: lower bearing bracket upper end is provided with the upper spider be fixedly connected with it, this upper spider upper end is provided with top board, it is parallel with lower bearing bracket and whole frame ground basal plane, the dividing plate that periphery is connected with upper spider is provided with in the middle part of upper spider, electric cylinder is provided with in lower bearing bracket, it is fixed on lower bearing bracket upper surface by the securing member through electric cylinder flange, electric cylinder output shaft is threaded with mounting flange through the through hole upper end threaded section that lower bearing bracket upper surface is corresponding, this mounting flange is by through the Flange joint on the bolt of through hole on it and pull pressure sensor, the screw at this pull pressure sensor center is threaded with tension and compression mechanical axis lower end, these tension and compression are axially through the through hole on dividing plate, the outer surface cover of the part that this tension and compression axle is corresponding with dividing plate has linear bearing, the outer surface cover of this linear bearing has linear axis bearing, this linear axis bearing peripheral hardware joint flange, by the securing member through flange through hole, linear axis bearing is fixed on dividing plate, tension and compression axle upper end threaded section is threaded with the lower clamp seat semi-transparent center screw that Open Side Down, lower clamp seat upper end is provided with two parallel lower T-slot, two T-shaped bolt I are all set in each T-slot, this two T-shaped bolt I is located at again in the through hole set by lower clamp two jaw respectively, the jaw that this lower clamp has two bottoms to be connected, both following clamp central faces are symmetrical, the channel space top spacing that two jaws are formed relatively is little, corresponding with test specimen stage casing vane thickness, bottom spacing is large, corresponding with canned paragraph block under test specimen, fixture on being provided with above lower clamp, it is T-shaped, vertical component is provided with open slot, both sides cell wall is provided with the through hole corresponding with canned paragraph block central through hole on test specimen, bearing pin is provided with in through hole, upper fixture upper is movably arranged on upper spider top board by four T-shaped bolt II with two coordinating of T-slot, in addition, this on two T-slot be parallel to each other, and vertical with the lower T-slot on lower clamp.
2. blade stretching testing machine according to claim 1, is characterized in that: reinforcement is all established in rack level part and vertical portion junction up and down.
3. blade stretching testing machine according to claim 1 and 2, is characterized in that: on electric cylinder output shaft, be provided with stop nut.
4. blade stretching testing machine according to claim 1 and 2, is characterized in that: be equipped with setscrew nut at the upper and lower two ends of tension and compression axle.
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 true CN104764663A (en) | 2015-07-08 |
| CN104764663B CN104764663B (en) | 2017-08-04 |
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Family Applications (1)
| 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 |
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| Country | Link |
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| CN (1) | CN104764663B (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106353178A (en) * | 2016-09-28 | 2017-01-25 | 攀钢集团研究院有限公司 | Gleeble sample loading tool |
| 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 |
| CN110726637A (en) * | 2019-12-02 | 2020-01-24 | 吉林大学 | Centering adjustment device and adjustment method |
| CN110836831A (en) * | 2019-12-02 | 2020-02-25 | 吉林大学 | Coaxiality adjusting device and method for testing machine |
Citations (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 |
| CN102759437A (en) * | 2011-04-28 | 2012-10-31 | 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 |
| CN103009532A (en) * | 2012-12-25 | 2013-04-03 | 陕西秦川机械发展股份有限公司 | Shape follow-up glue injection fixture and clamping method for aviation engine blade |
| CN203148788U (en) * | 2013-04-04 | 2013-08-21 | 哈尔滨理工大学 | Mechanical tensile experiment testing device |
-
2015
- 2015-04-17 CN CN201510184070.1A patent/CN104764663B/en not_active Expired - Fee Related
Patent Citations (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 |
| CN102759437A (en) * | 2011-04-28 | 2012-10-31 | 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 |
| CN103009532A (en) * | 2012-12-25 | 2013-04-03 | 陕西秦川机械发展股份有限公司 | Shape follow-up glue injection fixture and clamping method for aviation engine blade |
| CN203148788U (en) * | 2013-04-04 | 2013-08-21 | 哈尔滨理工大学 | Mechanical tensile experiment testing device |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106353178A (en) * | 2016-09-28 | 2017-01-25 | 攀钢集团研究院有限公司 | Gleeble sample loading tool |
| 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 |
| CN110726637A (en) * | 2019-12-02 | 2020-01-24 | 吉林大学 | Centering adjustment device and adjustment method |
| CN110836831A (en) * | 2019-12-02 | 2020-02-25 | 吉林大学 | Coaxiality adjusting device and method for testing machine |
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| Publication number | Publication date |
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| CN104764663B (en) | 2017-08-04 |
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Granted publication date: 20170804 |