CN102023090B - Tension test tool for end vane pin of high pressure movable vane - Google Patents
Tension test tool for end vane pin of high pressure movable vane Download PDFInfo
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- CN102023090B CN102023090B CN201010512021A CN201010512021A CN102023090B CN 102023090 B CN102023090 B CN 102023090B CN 201010512021 A CN201010512021 A CN 201010512021A CN 201010512021 A CN201010512021 A CN 201010512021A CN 102023090 B CN102023090 B CN 102023090B
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Abstract
The invention discloses a tension test tool for an end vane pin of a high pressure movable vane, which comprises a sleeve internally provided with a movable pull block and a pull rod which are connected through a spring. One end of the sleeve, which is close to the pull block, is provided with an opening, and the pull block is provided with a clamping head which can be extended out of the opening. The clamping head is provided with a clamping groove. One end of the sleeve, which is close to the pull block, is provided with a screw. One end of the screw is extended in the sleeve and connected with the pull rod rotatably. The screw is in threaded connection with the sleeve. The tension test tool for the end vane pin of the high pressure movable vane has simple structure, is convenient to operate, ensures the test precision by property of the spring and reduces the influence of anthropic factors greatly, wherein the pull force is axially transferred along the pin, and the pull block, pull rod and spring are arranged in the sleeve to form a closed work system so that the operation becomes more safer and reliable.
Description
Technical field
The present invention relates to a kind of tensile test instrument, particularly a kind of instrument that is used for high pressure movable vane pin in last years of a century is carried out tensile test.
Background technology
Being connected through the wringing fit mode and realizing between the final blage of impeller and the pin; Pin has certain magnitude of interference; According to principle of expanding with heat and contracting with cold, it is fully freezing in liquid nitrogen at first will to pin, and pin just can insert in the hole from the impeller steam admission side like a cork like this; After treating that pin returns to room temperature, pin volumetric expansion and final blage tighten together.Pretightning force between pin and the final blage has certain requirement (300 pounds); Need detect through the pretightning force of tensile test pin for this reason; Axially draw stem knob with the power that is not less than 300 pounds (designing requirements) along pin during detection; If becoming flexible appears in pin in testing process, explain that then product quality is defective, should use the bigger pin of diameter instead.
Common tensile test is to adopt lever principle, selects a suitable fulcrum for use, and an end blocks the head of final blage pin, according to the ratio of lever, uses spring balance to exert pressure at the other end, judges with this whether pin satisfies the pretightning force of product requirement.This way has a lot of drawbacks, is not to be the direction along pin to the pulling force of selling last years of a century at first, but certain angle is arranged, and is easy to cause error, and the human factor influence is very big, can the precision of test findings be impacted; Have, what this tensile test adopted is open work system, and potential safety hazard is arranged again, sometimes even can operator's health be damaged.
Summary of the invention
To the deficiency of above-mentioned prior art, the technical matters that the present invention will solve provides that a kind of result is simple, esy to use, safe and reliable, test accuracy is high high pressure movable vane is sold the tensile test instrument last years of a century.
For solving the problems of the technologies described above, the present invention adopts following technical scheme:
A kind of high pressure movable vane is sold the tensile test instrument last years of a century, and it comprises a sleeve, is provided with movable pulling block and pull bar in the said sleeve, is connected through spring between said pull bar and the said pulling block; Said sleeve is provided with opening near an end of said pulling block, and said pulling block is provided with a clamping head, and said clamping head can stretch out said opening, and said clamping head is provided with a draw-in groove; Said sleeve is provided with a screw rod near an end of said pull bar, and an end of said screw rod stretches in the said sleeve, and the rotating and said pull bar of said screw rod is connected, and said screw rod is connected with said bush whorl.
Preferably, be equipped with the spring container cavity on said pulling block, the pull bar, the inwall of said spring container cavity is provided with spring groove, and said Spring Card is connected in the said spring groove.
Preferably, said screw rod stretches in the spring container cavity of said pull bar, is provided with the bearing that matches with said screw rod in the spring container cavity of said pull bar, and said screw rod passes said bearing, and the end that said screw rod passes said bearing is provided with a hold-down nut.
Preferably, said sleeve lateral wall is provided with the observation port of observation draw rod positions.
Preferably, comprise that also one demarcates the counterweight of spring tension, said counterweight is provided with the clamping screw.
Technique scheme has following beneficial effect: this high pressure movable vane is sold the tensile test instrument in use last years of a century, at first the draw-in groove of pulling block clamping head is enclosed within the head of final blage pin, and sleeve is resisted against on the final blage; Outside then rotary screw, screw rod drives spring through pull bar and produces pulling force gradually, and through pulling block transmission pin; When spring is elongated to designated length, occur becoming flexible like pin, then the explanation pin is qualified; As occur becoming flexible, then the explanation pin is defective.It is simple, easy to operate that this high pressure movable vane is sold the tensile test tool construction last years of a century; Pulling force is along the pin transfers; Character warranty test precision through spring self has reduced artificial factor greatly, and pulling block, pull bar and spring all are positioned at sleeve; Form the type and closed type operation system, make operation safe, reliable.
Description of drawings
Fig. 1 embodiment of the invention is at the structural representation of user mode.
Fig. 2 is the structural representation of embodiment of the invention counterweight.
Embodiment
Below in conjunction with accompanying drawing the preferred embodiments of the present invention are described in detail.
As shown in Figure 1, this high pressure movable vane is sold the tensile test instrument and comprise a sleeve 1 last years of a century, is provided with movable pulling block 3 and pull bar 2 in the sleeve 1, is connected through spring 4 between pull bar 2 and the pulling block 3.Pull bar 2 is provided with spring container cavity 14; Pulling block 3 is provided with spring container cavity 13; Be equipped with spring groove on the madial wall of spring container cavity 13,14; The two ends of spring 4 are connected to respectively in the spring groove of spring container cavity 13,14, adopt this structure can guarantee the axially loaded of spring along pin, and reduce the volume of this test instrument.
Sleeve 1 is provided with opening near an end of pulling block 3, and pulling block 3 is provided with a clamping 11, and clamping 11 can be protruding from the opening part on the sleeve 1, and clamping 11 is provided with a draw-in groove 12.Sleeve 1 is provided with a screw rod 5 near an end of pull bar 2; One end of screw rod 5 stretches in the sleeve 1 and is connected with pull bar 2; Screw rod 5 extend in the spring container cavity 14 of pull bar 2; Be provided with the bearing 6 that matches with screw rod 5 in the spring container cavity 14 of pull bar 2,6 pairs of screw rods of bearing 5 form to support and also can make things convenient for screw rod 5 rotations, make screw rod 5 rotations more smoothly.Screw rod 5 passes this bearing 6, and the end that screw rod 5 passes bearing 6 is provided with a hold-down nut 7, and hold-down nut 7 can make screw rod 5 and pull bar 2 link together, and extracts out in pull bar 2 to avoid screw rod 5.Between screw rod 5 and the sleeve 1 for being threaded.On sleeve 1 sidewall, be provided with the observation port 15 of observation pull bar 2 positions.
As shown in Figure 2, for ease to the demarcation of spring tension, this high pressure movable vane is sold the tensile test instrument last years of a century and also is provided with one and is specifically designed to the counterweight 16 of demarcating spring tension, and counterweight 16 is provided with clamping screw 17.
This high pressure movable vane is sold the tensile test instrument before making an experiment last years of a century, needs earlier the pulling force of spring 4 to be demarcated.At first make pulling block 3 clampings 11 stretch out sleeve 1; Make the draw-in groove 12 of clamping 11 entangle the head (this counterweight weight is converted by the required pretightning force of pin in last years of a century and forms) of clamping screw 17; Then use driving through screw rod 5 this test instrument and counterweight 16 to be sling, turnbarrel 1 then, makes sleeve 1 be resisted against counterweight 16; From the position of observation port 15 observation pull bars 2, and make marks at the edge of observation port 15.
When carrying out tensile test; At first make the clamping 11 of pulling block 3 stretch out sleeve 1; Make the draw-in groove 12 of clamping 11 entangle the head of final blage 9 pin 8, sleeve 1 is resisted against on the impeller 10, then through the outside rotary screw 5 of spanner; Screw rod 5 drives spring 4 through pull bar 2 and stretches, and the pulling force that spring 4 produces passes to pin 8 through pulling block 3.In rotary screw 5, through the position of observation port 15 observation pull bars 2, the position that makes marks, the edge that arrives observation ports 15 like pull bar 2; The pulling force that spring 4 then is described has reached the required pretightning force of pin in last years of a century; 8 occur looseningly as pinning this moment, qualified products then is described, need not to change pin.When reaching the required pretightning force of pin in last years of a century like the pulling force of spring 4 pin 8 occur loosening, or the pulling force of spring 4 when not reaching the required pretightning force of pin in last years of a century pin 8 occur looseningly, the explanation product quality is defective, needs to change to pin.
It is simple, easy to operate that this high pressure movable vane is sold the tensile test tool construction last years of a century; Pulling force is along the pin transfers; Character warranty test precision through spring self has reduced artificial factor greatly, and pulling block, pull bar and spring all are positioned at sleeve; Form the type and closed type operation system, make operation safe, reliable.
More than the embodiment of the invention provided high pressure movable vane sold the tensile test instrument last years of a century carried out detailed introduction; For one of ordinary skill in the art; According to the thought of the embodiment of the invention, the part that on embodiment and range of application, all can change, in sum; This description should not be construed as limitation of the present invention, and all any changes of making according to design philosophy of the present invention are all within protection scope of the present invention.
Claims (4)
1. a high pressure movable vane is sold the tensile test instrument last years of a century, and it is characterized in that: it comprises a sleeve, is provided with movable pulling block and pull bar in the said sleeve, is connected through spring between said pull bar and the said pulling block; Said sleeve is provided with opening near an end of said pulling block, and said pulling block is provided with a clamping head, and said clamping head can stretch out said opening, and said clamping head is provided with a draw-in groove; Said sleeve is provided with a screw rod near an end of said pull bar; One end of said screw rod stretches in the said sleeve, and the rotating and said pull bar of said screw rod is connected, and said screw rod is connected with said bush whorl; Be equipped with the spring container cavity on said pulling block, the pull bar; The inwall of said spring container cavity is provided with spring groove, and the two ends of said spring are connected to respectively in the spring groove of said pulling block, pull bar, and inwardly shrink a said sleeve and said clamping corresponding position, position.
2. high pressure movable vane according to claim 1 is sold the tensile test instrument last years of a century; It is characterized in that: said screw rod stretches in the spring container cavity of said pull bar; Be provided with the bearing that matches with said screw rod in the spring container cavity of said pull bar; Said screw rod passes said bearing, and the end that said screw rod passes said bearing is provided with hold-down nut.
3. high pressure movable vane according to claim 1 is sold the tensile test instrument last years of a century, it is characterized in that: said sleeve lateral wall is provided with the observation port of observation draw rod positions.
4. high pressure movable vane according to claim 1 is sold the tensile test instrument last years of a century, it is characterized in that: comprise that also one demarcates the counterweight of spring tension, said counterweight is provided with the clamping screw.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201010512021A CN102023090B (en) | 2010-10-19 | 2010-10-19 | Tension test tool for end vane pin of high pressure movable vane |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201010512021A CN102023090B (en) | 2010-10-19 | 2010-10-19 | Tension test tool for end vane pin of high pressure movable vane |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102023090A CN102023090A (en) | 2011-04-20 |
| CN102023090B true CN102023090B (en) | 2012-09-26 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201010512021A Active CN102023090B (en) | 2010-10-19 | 2010-10-19 | Tension test tool for end vane pin of high pressure movable vane |
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Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102829699B (en) * | 2012-08-03 | 2015-06-17 | 上海电气电站设备有限公司 | Device and method for measuring gap between steam turbine movable blades and cylinder inner wall |
| CN103115762B (en) * | 2013-01-22 | 2015-08-05 | 扬州市神力吊具制造有限公司 | Tension tester |
| CN108195670B (en) * | 2017-11-22 | 2021-06-04 | 安徽家骎建设工程有限公司 | Building rope tensile strength testing arrangement |
| CN110884683B (en) * | 2019-12-04 | 2022-04-29 | 中国直升机设计研究所 | Helicopter blade pin flight load testing method |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4517848A (en) * | 1982-04-01 | 1985-05-21 | Compagnie Generale Des Etablissements Michelin | Apparatus for measuring forces |
| US4681294A (en) * | 1983-09-02 | 1987-07-21 | Mannesmann Aktiengesellschaft | Resilient suspension for conduits |
| CN1766643A (en) * | 2005-10-10 | 2006-05-03 | 西安交通大学 | Method for determining metal film fatigue life in electro-mechanical coupling field |
| CN201340385Y (en) * | 2008-12-25 | 2009-11-04 | 山东科技大学 | Anchorage body rheological drawing test device |
| CN201532301U (en) * | 2009-09-08 | 2010-07-21 | 上海金亭汽车线束有限公司 | Clamping fixture used for testing tension of cord fastener |
-
2010
- 2010-10-19 CN CN201010512021A patent/CN102023090B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4517848A (en) * | 1982-04-01 | 1985-05-21 | Compagnie Generale Des Etablissements Michelin | Apparatus for measuring forces |
| US4681294A (en) * | 1983-09-02 | 1987-07-21 | Mannesmann Aktiengesellschaft | Resilient suspension for conduits |
| CN1766643A (en) * | 2005-10-10 | 2006-05-03 | 西安交通大学 | Method for determining metal film fatigue life in electro-mechanical coupling field |
| CN201340385Y (en) * | 2008-12-25 | 2009-11-04 | 山东科技大学 | Anchorage body rheological drawing test device |
| CN201532301U (en) * | 2009-09-08 | 2010-07-21 | 上海金亭汽车线束有限公司 | Clamping fixture used for testing tension of cord fastener |
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| CN102023090A (en) | 2011-04-20 |
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