CN108613803A - A kind of clamp device applied to blade root fatigue life test - Google Patents
A kind of clamp device applied to blade root fatigue life test Download PDFInfo
- Publication number
- CN108613803A CN108613803A CN201810777497.6A CN201810777497A CN108613803A CN 108613803 A CN108613803 A CN 108613803A CN 201810777497 A CN201810777497 A CN 201810777497A CN 108613803 A CN108613803 A CN 108613803A
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- CN
- China
- Prior art keywords
- blade root
- plectane
- bolt
- fatigue life
- life test
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- 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.)
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M13/00—Testing of machine parts
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M15/00—Testing of engines
- G01M15/02—Details or accessories of testing apparatus
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M15/00—Testing of engines
- G01M15/14—Testing gas-turbine engines or jet-propulsion engines
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Combustion & Propulsion (AREA)
- Investigating Strength Of Materials By Application Of Mechanical Stress (AREA)
Abstract
A kind of clamp device applied to blade root fatigue life test, belongs to blade root fatigue experiment technical field, and the present invention is in order to solve the problems, such as currently without the grip device that can be carried out at the same time multigroup blade root fatigue test.Upper plectane and lower plectane are oppositely arranged, it is mounted on connection bolt at the center of the upper surface of upper plectane and the lower face of lower plectane, the lower face of upper plectane and the upper surface of lower plectane are symmetrically arranged with multiple mounting bases, blade root fixture is mounted on by fastening bolt in mounting base, the free end of blade root fixture is equipped with T-slot, the upper and lower ends of blade root exemplar are separately mounted in the T-slot of two opposite mounting bases, it is set at the both ends notch of T-slot and is equipped with baffle, baffle is fixed on by trip bolt on blade root fixture.A kind of clamp device applied to blade root fatigue life test of the present invention can realize the fatigue test of multi-quantity exemplar simultaneously, greatly improve efficiency, period and the cost of fatigue life test.
Description
Technical field
The present invention relates to a kind of experimental provisions, and in particular to a kind of clamp device applied to blade root fatigue life test,
Belong to blade root fatigue experiment technical field.
Background technology
The turbo blade working environment of the rotating machineries such as aero-engine, gas turbine is extremely severe, due to work
Under high temperature, high pressure, high rotating speed and heavily loaded environment, influenced by the combined loads such as rotary centrifugal force, thermal shock, pneumatic, pole
Fatigue crack is generated easily at turbine blade root, until fracture, causes great casualties and property loss.Presently relevant content
Experiment it is also immature, existing clamp device is of high cost, the test period is long, inefficiency.This patent is devised applied to leaf
The fatigue test of multi-quantity exemplar can be achieved at the same time compared with some existing devices in the clamp device of root fatigue life test,
Greatly improve efficiency, period and the cost of fatigue life test.
Invention content
The object of the present invention is to provide a kind of clamp devices applied to blade root fatigue life test, to solve above-mentioned technology
Problem.
A kind of clamp device applied to blade root fatigue life test includes connection bolt, upper plectane, mounting base, fastening spiral shell
Bolt, blade root fixture, baffle, trip bolt and lower plectane；
Upper plectane and lower plectane are oppositely arranged, and are mounted at the center of the lower face of the upper surface of upper plectane and lower plectane
The upper surface of connection bolt, the lower face of upper plectane and lower plectane is symmetrically arranged with multiple mounting bases, and blade root fixture passes through fastening
Bolt is mounted in mounting base, and the free end of blade root fixture is equipped with T-slot, and the upper and lower ends of blade root exemplar are separately mounted to phase
To two mounting bases T-slot in, set at the both ends notch of T-slot and be equipped with baffle, baffle is fixed on by trip bolt
On blade root fixture.
Preferably：Blade root fixture be equipped with the matched bolt hole of fastening bolt, and it is symmetrical at the both sides notch of T-slot
Equipped with screw hole.
Preferably：Upper plectane and lower plectane are mounted on by connecting bolt on two output ends of fatigue tester.
Preferably：The both ends of blade root exemplar are T shapes, indulge tree-like, swallow-tail form or bacterium wood shape.
The present invention has the following effects that compared with existing product：The blade root exemplar shape of present apparatus design is T shape blade roots, this
Fatigue life testing apparatus is not limited to T shape blade roots, or vertical tree-like, swallow-tail form, bacterium wood shape etc., and sample piece design is right up and down
Claim structure, not only meets the positioning function with fixture, but also ensure the reliability during fatigue test.
The exemplar that the present apparatus uses is designed as circumferential array for structure symmetrical above and below, clamp structure, with some existing dresses
Set and compare, the fatigue test of multi-quantity exemplar can be achieved at the same time, greatly improve the efficiency of fatigue life test, the period and at
This.In addition, the device processing of design is simple, easy to assembly, can be widely applied in fatigue test.
Description of the drawings
Fig. 1 is a kind of structural schematic diagram of clamp device applied to blade root fatigue life test of the present invention；
Fig. 2 is the upward view of upper plectane in Fig. 1；
Fig. 3 is the structural schematic diagram of blade root fixture.
In figure：1- connections bolt, the upper plectanes of 2-, 3- mounting bases, 4- fastening bolts, 5- blade roots fixture, 51- bolts hole, 52-
Plectane under screw hole, 6- baffles, 7- trip bolts, 8- blade roots exemplar, 9-.
Specific implementation mode
The preferred embodiment of the present invention is elaborated below according to attached drawing.
As shown in figures 1 and 3, a kind of clamp device applied to blade root fatigue life test of the present invention includes connecting
Connecting bolt 1, upper plectane 2, mounting base 3, fastening bolt 4, blade root fixture 5, baffle 6, trip bolt 7 and lower plectane 9；
Upper plectane 2 and lower plectane 9 are oppositely arranged, and are pacified at the center of the lower face of the upper surface of upper plectane 2 and lower plectane 9
Equipped with connection bolt 1, the upper surface of the lower face of upper plectane 2 and lower plectane 9 is symmetrically arranged with multiple mounting bases 3, blade root fixture 5
It is mounted in mounting base 3 by fastening bolt 4, the free end of blade root fixture 5 is equipped with T-slot, the upper and lower ends of blade root exemplar 8
It is separately mounted in the T-slot of two opposite mounting bases 3, is set at the both ends notch of T-slot and be equipped with baffle 6, baffle 6 passes through
Trip bolt 7 is fixed on blade root fixture 5.
Further：Blade root fixture 5 be equipped with 4 matched bolt hole 51 of fastening bolt, and at the both sides notch of T-slot
It is arranged with screw hole 52.
Further：Upper plectane 2 and lower plectane 9 are mounted on by connecting bolt 1 on two output ends of fatigue tester.
Further：The both ends of blade root exemplar 8 are T shapes, indulge tree-like, swallow-tail form or bacterium wood shape.
Operation principle：Connection bolt 1 is used for realizing the connection of blade root fixture 5 and fatigue tester, can be real to blade root exemplar 8
The load of existing drawing force, pressure and torque equal excitation, connection bolt 1 and raw sheet be integrally manufactured or welding together, plectane circumference side
To being evenly arranged a number of mounting base 3, plectane and mounting base 3 are integrally manufactured or welding, mounting base 3 are equipped with screw hole, pass through
The realization of fastening bolt 4 is fastenedly connected with blade root fixture 5.
Blade root fixture upper end sets there are one bolt hole 51, is realized by tightly pluging with molten metal bolt 4 and is fastenedly connected with mounting base.Blade root
The middle part of fixture 5 sets there are two symmetrical screw hole 52, realized by trip bolt 7 and be located by connecting with baffle 6, is prevented with this
During fatigue life test, with blade root fixture 5 lateral sliding occurs for blade root exemplar 8, plays the role of limit.Blade root fixture
5 Internal peripheries are consistent with 8 shape of blade root exemplar, and the connection with blade root exemplar 8 is realized with this.
Present embodiment is only to the exemplary description of this patent does not limit its scope of protection, people in the art
Member can also be changed its part, as long as it does not exceed the essence of this patent, within the protection scope of the present patent.
Claims (4)
1. a kind of clamp device applied to blade root fatigue life test, it is characterised in that：Including connection bolt (1), upper plectane
(2), mounting base (3), fastening bolt (4), blade root fixture (5), baffle (6), trip bolt (7) and lower plectane (9)；
The upper plectane (2) and lower plectane (9) are oppositely arranged, in the upper surface of upper plectane (2) and the lower face of lower plectane (9)
Connection bolt (1) is mounted at the heart, the lower face of upper plectane (2) and the upper surface of lower plectane (9) are symmetrically arranged with multiple peaces
Seat (3) is filled, blade root fixture (5) is mounted on by fastening bolt (4) in mounting base (3), and the free end of blade root fixture (5) is equipped with
The upper and lower ends of T-slot, blade root exemplar (8) are separately mounted in the T-slot of two opposite mounting bases (3), the both ends of T-slot
It is set at notch and is equipped with baffle (6), baffle (6) is fixed on by trip bolt (7) on blade root fixture (5).
2. a kind of clamp device applied to blade root fatigue life test according to claim 1, it is characterised in that：It is described
Blade root fixture (5) be equipped with fastening bolt (4) matched bolt hole (51), and be arranged at the both sides notch of T-slot
Screw hole (52).
3. a kind of clamp device applied to blade root fatigue life test according to claim 1, it is characterised in that：It is described
Upper plectane (2) and lower plectane (9) are mounted on by connecting bolt (1) on two output ends of fatigue tester.
4. a kind of clamp device applied to blade root fatigue life test according to claim 1, it is characterised in that：It is described
The both ends of blade root exemplar (8) are T shapes, indulge tree-like, swallow-tail form or bacterium wood shape.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810777497.6A CN108613803A (en) | 2018-07-16 | 2018-07-16 | A kind of clamp device applied to blade root fatigue life test |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810777497.6A CN108613803A (en) | 2018-07-16 | 2018-07-16 | A kind of clamp device applied to blade root fatigue life test |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108613803A true CN108613803A (en) | 2018-10-02 |
Family
ID=63666385
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810777497.6A Pending CN108613803A (en) | 2018-07-16 | 2018-07-16 | A kind of clamp device applied to blade root fatigue life test |
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| CN (1) | CN108613803A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109470468A (en) * | 2018-12-29 | 2019-03-15 | 北京航空航天大学 | A kind of height week composite fatigue test fixture of turbine mortise structure |
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| WO2011068280A1 (en) * | 2009-12-04 | 2011-06-09 | 선문대학교 산학협력단 | Stent fatigue testing apparatus using magnetostriction member |
| CN102539135A (en) * | 2011-12-31 | 2012-07-04 | 北京航空航天大学 | Thermal mechanical fatigue test system for hollow air-cooled turbine blade |
| KR20120102285A (en) * | 2011-03-08 | 2012-09-18 | 조준범 | Material long life that use electronic vibration tester high speed fatigue test chamber and system |
| KR20130043951A (en) * | 2011-10-21 | 2013-05-02 | 부산대학교 산학협력단 | Jig structure for tensile and fatigue tests of thin plates and method for tensile and fatigue test using the same |
| CN104677745A (en) * | 2015-03-27 | 2015-06-03 | 重庆交通大学 | Concrete lever type tension-compression creep device provided with static pulley |
| CN106644702A (en) * | 2016-12-21 | 2017-05-10 | 北京航空航天大学 | High-temperature fatigue test clamp and method capable of continuously adjusting blade check section stress distribution |
| KR20170064771A (en) * | 2015-12-02 | 2017-06-12 | 유두일 | Cryogenic fatigue test jig |
| CN206410934U (en) * | 2017-01-16 | 2017-08-15 | 燕山大学 | A kind of multi-functional plate tensile sample mechanical property tests fixture just dismounted |
| CN208333849U (en) * | 2018-07-16 | 2019-01-04 | 哈尔滨电气股份有限公司 | A kind of clamp device applied to blade root fatigue life test |
-
2018
- 2018-07-16 CN CN201810777497.6A patent/CN108613803A/en active Pending
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2011068280A1 (en) * | 2009-12-04 | 2011-06-09 | 선문대학교 산학협력단 | Stent fatigue testing apparatus using magnetostriction member |
| KR20120102285A (en) * | 2011-03-08 | 2012-09-18 | 조준범 | Material long life that use electronic vibration tester high speed fatigue test chamber and system |
| KR20130043951A (en) * | 2011-10-21 | 2013-05-02 | 부산대학교 산학협력단 | Jig structure for tensile and fatigue tests of thin plates and method for tensile and fatigue test using the same |
| CN102539135A (en) * | 2011-12-31 | 2012-07-04 | 北京航空航天大学 | Thermal mechanical fatigue test system for hollow air-cooled turbine blade |
| CN104677745A (en) * | 2015-03-27 | 2015-06-03 | 重庆交通大学 | Concrete lever type tension-compression creep device provided with static pulley |
| KR20170064771A (en) * | 2015-12-02 | 2017-06-12 | 유두일 | Cryogenic fatigue test jig |
| CN106644702A (en) * | 2016-12-21 | 2017-05-10 | 北京航空航天大学 | High-temperature fatigue test clamp and method capable of continuously adjusting blade check section stress distribution |
| CN206410934U (en) * | 2017-01-16 | 2017-08-15 | 燕山大学 | A kind of multi-functional plate tensile sample mechanical property tests fixture just dismounted |
| CN208333849U (en) * | 2018-07-16 | 2019-01-04 | 哈尔滨电气股份有限公司 | A kind of clamp device applied to blade root fatigue life test |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109470468A (en) * | 2018-12-29 | 2019-03-15 | 北京航空航天大学 | A kind of height week composite fatigue test fixture of turbine mortise structure |
| CN109470468B (en) * | 2018-12-29 | 2020-08-07 | 北京航空航天大学 | High-low cycle composite fatigue test fixture of turbine joggle joint structure |
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