CN201297980Y - Hydraulic clamp device used for blade frequency measurement - Google Patents
Hydraulic clamp device used for blade frequency measurement Download PDFInfo
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- CN201297980Y CN201297980Y CNU2008201347743U CN200820134774U CN201297980Y CN 201297980 Y CN201297980 Y CN 201297980Y CN U2008201347743 U CNU2008201347743 U CN U2008201347743U CN 200820134774 U CN200820134774 U CN 200820134774U CN 201297980 Y CN201297980 Y CN 201297980Y
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Abstract
The utility model discloses a hydraulic clamp device used for blade frequency measurement, belonging to aeroengine testing technology and relating to a hydraulic clamp device used for frequency measurement of the blades of the engine. The hydraulic clamp device is characterized in that the hydraulic clamp device consists of a clamp device main body [1], a blade rabbet fixture block [2] and a hydraulic actuator cylinder [3]. The clamp device main body consists of a door-shaped frame [1a] at the upper part and a pedestal [1b] at the lower part which are connected into a whole structure. The blade rabbet fixture block [2] is a cubic body and a horizontal blind slot consisting of an outer section, a middle section and an inner section is arranged at the left side surface of the blade rabbet fixture block [2]. The utility model provides a universal clamp device for the testing of the rotor blades of various rabbets of the engine, and the frequencies of different blades can be measured only by replacing different blade rabbet fixture blocks; the hydraulic clamp device ensures uniform clamp forces for debugging the same blade frequency measurement and improves the blade frequency measurement precision and repetitiveness. Meanwhile, the hydraulic clamp device saves the fabricating cost of the testing fixture and shortens the fabricating period of the work fixture.
Description
Technical field
The utility model belongs to the aeromotor measuring technology, relates to a kind of hydraulic clamp that is used for the engine blade frequency test.
Background technology
The frequency test of engine blade is reseach of engine, the indispensable important step of production.Blade frequencies is the important evidence that blade is arranged on engine and installed, and the state of blade assembling is very big to work safety, the performance impact of engine, and is extremely important to engine failure analysis and troubleshooting.So engine has strict control to the frequency departure of each grade blade, and frequency test is had special demand of technical standard.The clamping method that present spinner blade is tested with shaking table is single-ended mechanical type and tightens up the clamping blade tenon, and anchor clamps quantity is many, and the blade of each different tenon just is furnished with the corresponding anchor clamps of a cover, has increased testing cost.Because blade clamping mode and clamping force size directly influence the precision of frequency test, and adopts manually clamping, the each clamping force size identical property of identical blade is poor, data deviation greatly, poor repeatability, reduced measuring accuracy.
Summary of the invention
The purpose of this utility model is: propose a kind of hydraulic clamp that is used for the blade frequency measurement, to improve blade frequency-measurement accuracy and repeatability, reduce anchor clamps quantity, save the manufacturing cost of test fixture, shorten the manufacturing cycle of frock clamp.
The technical solution of the utility model is: be used for the hydraulic clamp of blade frequency measurement, it is characterized in that, it is made up of clamp device body 1, blade tenon fixture block 2 and hydraulic actuator 3; Clamp device body 1 connects into one-piece construction by the portal 1a on top and the base 1b of bottom, portal 1a is a cube shape, it is the through hole 1c of rectangle that the cross section is arranged between two relative sides of portal 1a, the bolt hole that is connected with shaking table is arranged on base 1b, a center pit is arranged on the upper surface of portal 1a, hydraulic actuator 3 is installed in by bolt on the upper surface of portal 1a, and the piston rod of hydraulic actuator 3 is inserted in the through hole 1c from the center pit of portal 1a upper surface; Blade tenon fixture block 2 is cubes, on the left vertical side of blade tenon fixture block 2, have a blind groove of level, the blind groove of this level connects the front and back sides of blade tenon fixture block 2, the blind groove of this level by outer, in, interior three sections form, outer section groove is the tenon groove, its cross sectional shape is consistent with the blade tenon that is held, the stage casing slot cross-section is the rectangular channel of vertical direction width 2～4mm, groove length in the horizontal direction in stage casing is 20～40mm, the inner segment slot cross-section is an arc groove, arc radius is 6～8mm, above-mentioned outer, in, the centerline collineation of interior three sections grooves; The first oil inlet and outlet 3a and the second oil inlet and outlet 3b of hydraulic actuator 3 are communicated with hydraulic power source by pipeline, when hydraulic actuator 3 is in impaction state, the end face of piston rod is pressed on the upper surface of blade tenon fixture block 2, when hydraulic actuator 3 was in releasing orientation, the end face of piston rod broke away from the upper surface of blade tenon fixture block 2.
The utility model has the advantages that: the first, make the spinner blade test clamping of the various tenons of engine that fexible unit has been arranged, only the different blade tenon fixture block of needs replacing can be realized the frequency measurement to different blades, guarantee the identical blade frequency measurement clamping force unanimity of debugging, improved the frequency-measurement accuracy and the repeatability of blade.The second, save the manufacturing cost of test fixture, shortened the manufacturing cycle of frock clamp.
Description of drawings
Fig. 1 is a structural representation of the present utility model.Tested blade is represented in double dot dash line among the figure.The tenon of tested blade is positioned at the tenon groove of blade tenon fixture block 2.
Embodiment
Below the utility model is described in further details.Referring to Fig. 1, be used for the hydraulic clamp of blade frequency measurement, it is characterized in that it is made up of clamp device body 1, blade tenon fixture block 2 and hydraulic actuator 3; Clamp device body 1 connects into one-piece construction by the portal 1a on top and the base 1b of bottom, portal 1a is a cube shape, it is the through hole 1c of rectangle that the cross section is arranged between two relative sides of portal 1a, the bolt hole that is connected with shaking table is arranged on base 1b, a center pit is arranged on the upper surface of portal 1a, hydraulic actuator 3 is installed in by bolt on the upper surface of portal 1a, and the piston rod of hydraulic actuator 3 is inserted in the through hole 1c from the center pit of portal 1a upper surface; Blade tenon fixture block 2 is cubes, on the left vertical side of blade tenon fixture block 2, have a blind groove of level, the blind groove of this level connects the front and back sides of blade tenon fixture block 2, the blind groove of this level by outer, in, interior three sections form, outer section groove is the tenon groove, its cross sectional shape is consistent with the blade tenon that is held, the stage casing slot cross-section is the rectangular channel of vertical direction width 2～4mm, groove length in the horizontal direction in stage casing is 20～40mm, the inner segment slot cross-section is an arc groove, arc radius is 6～8mm, above-mentioned outer, in, the centerline collineation of interior three sections grooves; The first oil inlet and outlet 3a and the second oil inlet and outlet 3b of hydraulic actuator 3 are communicated with hydraulic power source by pipeline, when hydraulic actuator 3 is in impaction state, the end face of piston rod is pressed on the upper surface of blade tenon fixture block 2, when hydraulic actuator 3 was in releasing orientation, the end face of piston rod broke away from the upper surface of blade tenon fixture block 2.
Principle of work of the present utility model is: blade tenon fixture block 2 is slotted accordingly according to tested blade tenon, during test, earlier the tenon of tested blade is packed in the outer section tenon groove of blade tenon fixture block 2, then blade tenon fixture block 2 is put into the through hole 1c of clamp device body 1, when connecting hydraulic power source and making hydraulic actuator 3 be in impaction state, the end face of piston rod is finished clamping to tested blade with regard to the upper surface that is pressed in blade tenon fixture block 2.Clamping force can be adjusted easily by the pressure that changes hydraulic power source.
Claims (1)
1, be used for the hydraulic clamp of blade frequency measurement, it is characterized in that, it is made up of clamp device body [1], blade tenon fixture block [2] and hydraulic actuator [3]; Clamp device body [1] connects into one-piece construction by the portal [1a] on top and the base [1b] of bottom, portal [1a] is a cube shape, it is the through hole [1c] of rectangle that the cross section is arranged between two relative sides of portal [1a], on base [1b], the bolt hole that is connected with shaking table is arranged, a center pit is arranged on the upper surface of portal [1a], hydraulic actuator [3] is installed in by bolt on the upper surface of portal [1a], and the piston rod of hydraulic actuator [3] is inserted in the through hole [1c] from the center pit of portal [1a] upper surface; Blade tenon fixture block [2] is a cube, on the left vertical side of blade tenon fixture block [2], have a blind groove of level, the blind groove of this level connects the front and back sides of blade tenon fixture block [2], the blind groove of this level by outer, in, interior three sections form, outer section groove is the tenon groove, its cross sectional shape is consistent with the blade tenon that is held, the stage casing slot cross-section is the rectangular channel of vertical direction width 2～4mm, groove length in the horizontal direction in stage casing is 20～40mm, the inner segment slot cross-section is an arc groove, arc radius is 6～8mm, above-mentioned outer, in, the centerline collineation of interior three sections grooves; First oil inlet and outlet [3a] and second oil inlet and outlet [3b] of hydraulic actuator [3] are communicated with hydraulic power source by pipeline, when hydraulic actuator [3] when being in impaction state, the end face of piston rod is pressed on the upper surface of blade tenon fixture block [2], when hydraulic actuator [3] when being in releasing orientation, the end face of piston rod breaks away from the upper surface of blade tenon fixture block [2].
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008201347743U CN201297980Y (en) | 2008-09-10 | 2008-09-10 | Hydraulic clamp device used for blade frequency measurement |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008201347743U CN201297980Y (en) | 2008-09-10 | 2008-09-10 | Hydraulic clamp device used for blade frequency measurement |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201297980Y true CN201297980Y (en) | 2009-08-26 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2008201347743U Expired - Lifetime CN201297980Y (en) | 2008-09-10 | 2008-09-10 | Hydraulic clamp device used for blade frequency measurement |
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| CN (1) | CN201297980Y (en) |
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102147286A (en) * | 2010-11-20 | 2011-08-10 | 无锡透平叶片有限公司 | Double-plunger frequency measurement device |
| CN101786237B (en) * | 2009-12-29 | 2012-10-10 | 东方电气集团东方汽轮机有限公司 | Fixture used for processing small moving blade in turbine and processing method thereof |
| CN102865915A (en) * | 2012-09-06 | 2013-01-09 | 哈尔滨汽轮机厂有限责任公司 | Device for measuring static frequency of movable blade of high-pressure compressor of gas turbine combined compressor |
| CN103223606A (en) * | 2013-05-16 | 2013-07-31 | 西北工业大学 | Universal clamp for numerical-control machining and precise positioning of blade |
| CN105319039A (en) * | 2014-07-02 | 2016-02-10 | 西安航空动力股份有限公司 | Vibration fatigue testing method for large-bypass-ratio engine fan blade with shoulder |
| CN106768755A (en) * | 2016-11-28 | 2017-05-31 | 中航动力股份有限公司 | A kind of fixture integrated and test method for swallow-tail form tenon turbine blade vibration fatigue test |
| CN106840561A (en) * | 2016-11-18 | 2017-06-13 | 成都发动机（集团）有限公司 | A kind of high frequency circumferentially small tenon vibration fatigue test of blade maintenance clamping device and application method |
| CN110332985A (en) * | 2019-07-24 | 2019-10-15 | 哈尔滨汽轮机厂有限责任公司 | A kind of Blade measuring frequency tooling and its processing method |
| WO2020051510A1 (en) * | 2018-09-07 | 2020-03-12 | Hexagon Metrology, Inc. | Modular workholding apparatus |
-
2008
- 2008-09-10 CN CNU2008201347743U patent/CN201297980Y/en not_active Expired - Lifetime
Cited By (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101786237B (en) * | 2009-12-29 | 2012-10-10 | 东方电气集团东方汽轮机有限公司 | Fixture used for processing small moving blade in turbine and processing method thereof |
| CN102147286A (en) * | 2010-11-20 | 2011-08-10 | 无锡透平叶片有限公司 | Double-plunger frequency measurement device |
| CN102865915A (en) * | 2012-09-06 | 2013-01-09 | 哈尔滨汽轮机厂有限责任公司 | Device for measuring static frequency of movable blade of high-pressure compressor of gas turbine combined compressor |
| CN103223606A (en) * | 2013-05-16 | 2013-07-31 | 西北工业大学 | Universal clamp for numerical-control machining and precise positioning of blade |
| CN105319039A (en) * | 2014-07-02 | 2016-02-10 | 西安航空动力股份有限公司 | Vibration fatigue testing method for large-bypass-ratio engine fan blade with shoulder |
| CN106840561A (en) * | 2016-11-18 | 2017-06-13 | 成都发动机（集团）有限公司 | A kind of high frequency circumferentially small tenon vibration fatigue test of blade maintenance clamping device and application method |
| CN106840561B (en) * | 2016-11-18 | 2019-03-01 | 成都发动机（集团）有限公司 | A kind of high frequency circumferentially small tenon vibration fatigue test of blade maintenance clamping device and application method |
| CN106768755A (en) * | 2016-11-28 | 2017-05-31 | 中航动力股份有限公司 | A kind of fixture integrated and test method for swallow-tail form tenon turbine blade vibration fatigue test |
| CN106768755B (en) * | 2016-11-28 | 2019-10-01 | 中航动力股份有限公司 | A kind of fixture integrated and test method for swallow-tail form tenon turbine blade vibration fatigue test |
| WO2020051510A1 (en) * | 2018-09-07 | 2020-03-12 | Hexagon Metrology, Inc. | Modular workholding apparatus |
| US11498133B2 (en) | 2018-09-07 | 2022-11-15 | Hexagon Metrology, Inc. | Modular workholding apparatus |
| CN110332985A (en) * | 2019-07-24 | 2019-10-15 | 哈尔滨汽轮机厂有限责任公司 | A kind of Blade measuring frequency tooling and its processing method |
| CN110332985B (en) * | 2019-07-24 | 2021-08-17 | 哈尔滨汽轮机厂有限责任公司 | Blade frequency measurement tool and machining method thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| ASS | Succession or assignment of patent right |
Owner name: XIAN AVIATION POWER CO., LTD. Free format text: FORMER OWNER: XI'AN AERONAUSTIC ENGINE (GROUP) CO., LTD. Effective date: 20140527 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20140527 Address after: Weiyang Xu Jia Wan 710021 Shaanxi city of Xi'an Province Patentee after: Xian Aviation Power Co., Ltd. Address before: 710021 Beijiao, Shaanxi province Xu Bay Patentee before: Xi' an Aero-Engine (Group) Co., Ltd. |
|
| CX01 | Expiry of patent term |
Granted publication date: 20090826 |
|
| CX01 | Expiry of patent term |