CN107957323A - A kind of blade clamping device - Google Patents
A kind of blade clamping device Download PDFInfo
- Publication number
- CN107957323A CN107957323A CN201610900327.3A CN201610900327A CN107957323A CN 107957323 A CN107957323 A CN 107957323A CN 201610900327 A CN201610900327 A CN 201610900327A CN 107957323 A CN107957323 A CN 107957323A
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- CN
- China
- Prior art keywords
- blade
- fixture
- clamping device
- bell crank
- crank lever
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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
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Investigating Strength Of Materials By Application Of Mechanical Stress (AREA)
Abstract
The present invention provides a kind of blade clamping device, including the upper fixture being arranged in the rack and lower fixture, the upper fixture and the lower fixture are respectively used to the both ends of the clamping blade, and apply the pulling force of setting to the blade to simulate the centrifugal force suffered by the blade；The upper fixture is an integral structure, and top is provided with top hinge hole, and bottom is provided with bottom hinge hole, and top hinge hole is hinged by the top of articulated shaft and rack, and bottom hinge hole is hinged by the top of articulated shaft and blade.The present invention can cause blade in the case where being acted on by load caused by fluid media (medium), the micro swing of energy, and then can more precisely simulate caused swing during blade working, and then the stress scene of the more preferable simulation blade of energy.
Description
Technical field
The present invention relates to technical field of test equipment, more particularly to a kind of blade clamping device.
Background technology
Impeller is the important component of air compressor, is to ensure air compressor performance, reliability, the weight of durability
Want parts.
In the course of work of air compressor, high-speed rotating blade can bear larger centrifugal force, and then be easier to
So that blade surface and internal the defects of producing micro-crack.As it can be seen that military service performance of the blade in the case where bearing centrifugal force effect is to leaf
The durability of the military service of wheel, reliability are of great significance.
Impeller remanufacture or production process in, the performance test of impeller is subsequently produced impeller in batches with instructing meaning
Justice, but current manufacturer is all that blade is implemented to test using special independent equipment, the special equipment of generally use
Apply centrifugal force to simulate the stress scene under blade working state.Apply what static tensile force was born to simulate blade to blade
Centrifugal force on experimental facilities, it is necessary to set blade clamping device to be clamped blade, to apply static tensile force to blade.
, it is necessary to make the micro breadth oscillation of blade generation certain frequency, maximum analog compression during performance test
The air pressure fluctuation of machine normal running conditions output is to the action effect of impeller blade, and blade clamping device usually carries out blade
It is fixed.
Therefore, blade micro swing of energy in the case where being acted on by load caused by fluid media (medium) how is caused, with analog compression
It is urgently to be resolved hurrily to become those skilled in the art to the action effect of impeller blade for the air pressure fluctuation of machine normal running conditions output
Technical barrier.
The content of the invention
The object of the present invention is to provide a kind of blade clamping device, and blade can be caused by load caused by fluid media (medium)
The lower micro swing of energy of lotus effect, is imitated with effect of the air pressure fluctuation of analog compression machine normal running conditions output to impeller blade
Fruit.
To achieve these goals, the present invention provides following technical solution：
A kind of blade clamping device, including the upper fixture being arranged in the rack and lower fixture, the upper fixture and institute
State the both ends that lower fixture is respectively used to the clamping blade, and apply the pulling force of setting to the blade to simulate the blade institute
The centrifugal force received；
The upper fixture is an integral structure, and top is provided with top hinge hole, and bottom is provided with bottom hinge hole, top
Hinge hole is hinged by the top of articulated shaft and rack, and bottom hinge hole is hinged by the top of articulated shaft and blade.
Preferably, oscillation system is further included, the oscillation system is connected with the blade, for driving blade default
Swung in angular range.
Preferably, the lower fixture includes clamp base and two fixture blocks, the clamp base are arranged on the erecting bed
On, described two fixture blocks are arranged in the clamp base, and symmetrical；Two fixture blocks are fixed on by bolt assembly
In the clamp base；The holding chamber for the bottom for being used to clamp the blade is formed between two fixture blocks.
Preferably, the upper fixture is provided with pulling force sensor.
Preferably, further include：
Worm gear mechanism；
The drive gear engaged with the clamp base, the drive gear are arranged on the output of the worm gear mechanism
On axis；Driving handle is provided with the worm gear mechanism；The worm gear mechanism is used to drive by the drive gear
The dynamic clamp base is rotated to adjust the direction of the holding chamber.
Preferably, the rack includes electric cylinder and bell crank lever；Wherein：
The electric cylinder is arranged at the bottom of the bell crank lever；
The upper fixture is arranged on the top of the bell crank lever, the electric cylinder can promote the bell crank lever so that
The upper fixture clamps the top of the blade.
Preferably, the top of the bell crank lever is provided with lifting gear, and the lifting gear can be relative to the right angle
The top of lever is lifted to adjust the distance between the upper fixture and the lower fixture.Blade clamping device provided by the invention
Including the upper fixture being arranged in the rack and lower fixture, the articulated manner of upper fixture blade is produced by fluid media (medium)
Under raw load effect, the micro swing of energy, and then caused swing during blade working can be more precisely simulated, into
And the stress scene of the more preferable simulation blade of energy.
Brief description of the drawings
In order to illustrate the technical solutions in the embodiments of the present application or in the prior art more clearly, below will be to institute in embodiment
Attached drawing to be used is needed to be briefly described, it should be apparent that, drawings in the following description are only one described in the present invention
A little embodiments, for those of ordinary skill in the art, can also obtain other attached drawings according to these attached drawings.
Fig. 1 is the front view of blade clamping device provided in an embodiment of the present invention, and chamber is not shown in figure；
Fig. 2 is the side view of Fig. 1, and chamber is shown in figure；
Fig. 3 is the structure diagram of upper fixture provided in an embodiment of the present invention；
Fig. 4 is the side view of Fig. 3；
Fig. 5 is the structure diagram of lower fixture provided in an embodiment of the present invention.
Embodiment
In order to make those skilled in the art more fully understand technical scheme, below in conjunction with attached drawing to this hair
It is bright to be further detailed.
Please refer to Fig.1 and Fig. 2, the embodiment of the present invention provide a kind of blade clamping device, blade can be caused by fluid
The lower micro swing of energy of load effect caused by medium, with the air pressure fluctuation of analog compression machine normal running conditions output to impeller
The action effect of blade.
Blade clamping device shown in Fig. 1 and 2 includes rack 10, upper fixture 20, lower fixture 30.
Wherein, skeleton of the rack 10 as whole blade clamping device, for providing installation foundation for other parts.On
Fixture 20 and lower fixture 30 are arranged in rack 10, in general, upper fixture 20 is arranged on the top of rack 10, lower fixture 30 is arranged on
On the erecting bed of rack 10, it is also assumed that being the workbench of whole blade clamping device.Upper fixture 20 and lower fixture 30 are distinguished
It is respectively top and bottom for the both ends of clamping blade 70, upper fixture 20 and lower fixture 30 apply to blade 70 respectively to be set
Pulling force, to simulate the centrifugal force suffered by blade 70.
In preferable scheme, in order to ensure the pulling force applied, can relatively accurately to simulate it suffered in the operating condition
The centrifugal force arrived, pulling force sensor 50 is provided with upper fixture 20, and pulling force sensor 50, which is used to show, to be applied on blade 70
Pulling force, when pulling force is insufficient, pulling force sensor 50 can play the follow-up suggesting effect adjusted again.
In specific scheme, chamber 40 is used for the erecting bed for being arranged on rack 10, and the effect of chamber 40 is cover
It is located on blade 70, to provide the simulated environment of a relative closure.
It is known that the centrifugal force feature that the blade 70 of the impeller under high speed rotation state is subject to is as follows：Centrifugal force
Constant magnitude, the direction of centrifugal force determines, i.e., outside along radius of turn.Based on this, the application is using the higher static(al) of precision
That is static tensile force simulates the centrifugal force suffered by blade 70.It is right by upper fixture 20 and lower fixture 30 during simulation
The pulling force that blade 70 is applied achieve the purpose that static(al) apply.Specifically, can be by adjusting upper fixture 20 and lower fixture 30
Between clamping distance adjust static(al) size, can also be adjusted by the table upper fixture 20 relative to the position of lower fixture 30
The size of static(al).As described above, during above-mentioned adjusting, it can be coordinated by pulling force sensor 50 and realized.
In the present embodiment, the effect of upper fixture 20 and lower fixture 30 is the top and bottom for clamping blade 70, refer to
Fig. 3 and Fig. 4, the embodiment of the present invention provide a kind of upper fixture 20 of concrete structure, and the upper fixture 20 provided is an integral structure,
Top is provided with top hinge hole 201, and bottom is provided with bottom hinge hole 202, and top hinge hole 201 passes through articulated shaft and rack
10 top is hinged, and bottom hinge hole 202 is hinged by the top of articulated shaft and blade 70, and above-mentioned hinged mode causes blade
70 by load caused by fluid media (medium) in the case where being acted on, the micro swing of energy, and then can more precisely be simulated blade 70 and be worked
During caused swing, and then can more preferable simulation blade 70 stress scene.Specifically, blade provided in this embodiment
Clamping device can also include oscillation system, and the oscillation system is connected with blade 70, and energy active drive blade 70 is appropriate
Swung in angular range.
Equally, the embodiment of the present invention provides a kind of lower fixture 30 of concrete structure, refer to Fig. 5, the lower fixture provided
30 include 301, two fixture blocks 302 of clamp base and bolt assembly 303.Clamp base 301 is arranged on erecting bed, two fixture blocks
302 symmetries are arranged in clamp base 301, and two fixture blocks 302 are fixed in clamp base 301 by bolt assembly 303, and two
The holding chamber for being used for clamping 70 bottom of blade is formed between a fixture block 302.Specifically, two fixture blocks 302 can movably be set
In clamp base 301, then realized and fixed by bolt assembly 303, the mobile width that can change holding chamber of two fixture blocks 302
Degree, and then adapt to the blade 70 of different size.
Referring again to Fig. 5, blade clamping device provided in this embodiment can also include worm gear mechanism 304 and drive
Moving gear 305, wherein, drive gear 305 is engaged with clamp base 301, that is to say, that clamp base 301 is circumferentially nibbled
Tooth is closed, and can be rotated relative to clamp base 301.Drive gear 305 is arranged on the output shaft of worm gear mechanism 304,
Worm gear mechanism 304 is provided with driving handle, operates driving handle to drive worm gear mechanism 304 and then realize sliding tooth
Wheel 305 rotates, and the rotation of drive gear 305 can drive clamp base 301 to rotate, be finally reached the mesh that can adjust holding chamber direction
's.Drive turbine and worm mechanism 304 to implement angle to lower fixture 30 by driving handle to be adjusted, control simply, conveniently, together
When worm gear mechanism 304 there is self-locking effect, can ensure the testing position of blade 70.In the surfaces of revolution of clamp base 301
On can be disposed with the tiny frictional force for thering is oil duct to be lubricated, reducing contact surface, it is easier to adjust angle.
Referring again to Fig. 1 and 2, a kind of rack 10 of concrete structure is provided in the present embodiment, which includes electronic
Cylinder 101 and bell crank lever 102, wherein, electric cylinder 101 is arranged on the bottom of bell crank lever 102, and upper fixture 20 is arranged on right angle thick stick
The top of bar 102, electric cylinder 101 can promote the bell crank lever 102 to swing to reach folder to adjust and then pull upper fixture 20 indirectly
Tight 70 top of blade, and apply the purpose of pulling force.Bell crank lever 102 can play the mesh for adjusting 20 layout angle of upper fixture and position
, meanwhile, by reasonably arrange bell crank lever 102 fulcrum can bell crank lever 102 thrust of electric cylinder 101 is put
Greatly, while the transformation of 101 thrust direction of electric cylinder is realized.It is larger in view of 102 stress of bell crank lever, to realize high intensity weight
The requirement of amount, the structure design of bell crank lever 102 is weldment by we, and is designed rational floor and gusset and improved right angle thick stick
The integral strength of bar 102.In the present embodiment, rack 10 passes through high-precision electrical servo system (electric cylinder) and bell crank lever
102 loading, can realize the accurate loading of static(al).
Referring again to Fig. 1 and 2, in the present embodiment, the top of bell crank lever 102 can be provided with lifting gear 103, rise
Falling unit 103 can be lifted to adjust the distance between upper fixture 20 and lower fixture 30 relative to the top of bell crank lever 102, and then
Playing adjusting indirectly, both put on the purpose of 70 upper pulling force of blade.Specifically, lifting gear 103 can use Screw of Worm Gear liter
Drop machine, can facilitate the clamping of blade 70 using worm wheel screw rod lifting machine, have compact-sized, light-weight, noiseless, bearing capacity
By force, self-locking, the advantages that push rod is anti-rotational, reliability is high, service life is long.At the same time, the lifting moving energy of lifting gear 103
The leveling of auxiliary adjustment bell crank lever 102 and ensure load straight up.
Some one exemplary embodiments that only the invention has been described by way of explanation above, undoubtedly, for ability
The those of ordinary skill in domain, without departing from the spirit and scope of the present invention, can be with a variety of modes to institute
The embodiment of description is modified.Therefore, above-mentioned attached drawing and description are regarded as illustrative in nature, and should not be construed as to the present invention
The limitation of claims.
Claims (7)
- A kind of 1. blade clamping device, it is characterised in that including the upper fixture being arranged in the rack and lower fixture, it is described on Fixture and the lower fixture are respectively used to the both ends of the clamping blade, and apply the pulling force of setting to the blade to simulate State the centrifugal force suffered by blade；The upper fixture is an integral structure, and top is provided with top hinge hole, and bottom is provided with bottom hinge hole, and top is hinged Hole is hinged by the top of articulated shaft and rack, and bottom hinge hole is hinged by the top of articulated shaft and blade.
- 2. blade clamping device as claimed in claim 1, it is characterised in that further include oscillation system, the oscillation system with The blade connection, swings for driving blade in default angular range.
- 3. blade clamping device as claimed in claim 1, it is characterised in that the lower fixture includes clamp base and two folders Block, the clamp base are arranged on the erecting bed, and described two fixture blocks are arranged in the clamp base, and symmetrical point Cloth；Two fixture blocks are fixed in the clamp base by bolt assembly；Formed between two fixture blocks described for clamping The holding chamber of the bottom of blade.
- 4. blade clamping device as claimed in claim 1, it is characterised in that the upper fixture is provided with pulling force sensor.
- 5. blade clamping device as claimed in claim 1, it is characterised in that further include：Worm gear mechanism；The drive gear engaged with the clamp base, the drive gear are arranged on the output shaft of the worm gear mechanism On；Driving handle is provided with the worm gear mechanism；The worm gear mechanism is used to drive by the drive gear The clamp base is rotated to adjust the direction of the holding chamber.
- 6. blade clamping device as claimed in claim 5, it is characterised in that the rack includes electric cylinder and bell crank lever； Wherein：The electric cylinder is arranged at the bottom of the bell crank lever；The upper fixture is arranged on the top of the bell crank lever, and the electric cylinder can promote the bell crank lever so that described Upper fixture clamps the top of the blade.
- 7. blade clamping device as claimed in claim 4, it is characterised in that the top of the bell crank lever is provided with lifting dress Put, the lifting gear can be lifted relative to the top of the bell crank lever to adjust between the upper fixture and the lower fixture Distance.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610900327.3A CN107957323A (en) | 2016-10-17 | 2016-10-17 | A kind of blade clamping device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610900327.3A CN107957323A (en) | 2016-10-17 | 2016-10-17 | A kind of blade clamping device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107957323A true CN107957323A (en) | 2018-04-24 |
Family
ID=61953884
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610900327.3A Pending CN107957323A (en) | 2016-10-17 | 2016-10-17 | A kind of blade clamping device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107957323A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110006611A (en) * | 2019-03-27 | 2019-07-12 | 中国航发北京航空材料研究院 | A kind of high efficiency vibration fatigue test device |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105628371A (en) * | 2016-03-22 | 2016-06-01 | 燕山大学 | Blade fatigue performance tester |
-
2016
- 2016-10-17 CN CN201610900327.3A patent/CN107957323A/en active Pending
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105628371A (en) * | 2016-03-22 | 2016-06-01 | 燕山大学 | Blade fatigue performance tester |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110006611A (en) * | 2019-03-27 | 2019-07-12 | 中国航发北京航空材料研究院 | A kind of high efficiency vibration fatigue test device |
| CN110006611B (en) * | 2019-03-27 | 2020-11-13 | 中国航发北京航空材料研究院 | High-efficiency vibration fatigue test device |
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|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20180424 |
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| RJ01 | Rejection of invention patent application after publication |