CN208672263U - A kind of adaptive allocation device with damping function - Google Patents
A kind of adaptive allocation device with damping function Download PDFInfo
- Publication number
- CN208672263U CN208672263U CN201821214880.2U CN201821214880U CN208672263U CN 208672263 U CN208672263 U CN 208672263U CN 201821214880 U CN201821214880 U CN 201821214880U CN 208672263 U CN208672263 U CN 208672263U
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- load plate
- cover board
- ball screw
- damping function
- allocation device
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Abstract
The utility model discloses a kind of adaptive allocation device with damping function, it is related to Aircraft Load rating test field, the load plate of spherical groove is offered including ball screw and lower surface center, the load plate lower surface is also equipped with for constraining the self centering cover board of ball screw steel ball, tapped clamping plate is provided on the ball screw, elastomer cylinder is clamped between the clamping plate and cover board, the load plate upper surface is equipped with rubber slab.The utility model in loading blocks by clamping the strong elastomer cylinder of a restoring force, topple over the utility model will not due to gravity before on-test and axial-rotation, also enough holding powers can be provided for load plate during the test, guarantee that load plate fits in aerofoil surface always, solve the problems, such as that aircraft rating test loading blocks are difficult to be bonded aerofoil surface always and testing crew is needed artificially to adjust in the prior art, its structure is simple, at low cost simultaneously, expends small and progress is big.
Description
Technical field
The utility model relates to Aircraft Load rating test fields, more particularly to the biography of Aircraft Load rating test is arranged in
Loading blocks on sensor are specifically a kind of adaptive allocation devices with damping function.
Background technique
For experimental observation and exploratory flight device structure or component intensity, rigidity and stress under load effect, change
Shape distribution situation, it is often necessary to which " aircraft slow test " and " Aircraft Load rating test " is carried out to aircraft.
Big quantity sensor can be all needed during progress " aircraft slow test " and " Aircraft Load rating test ", is tested
In by loading blocks by ess-strain pass to sensor carry out data acquisition.Currently, existing loading blocks are mostly band bulb spiral shell
The composite structure of bar, cover board and rubber pad, similar to the steel alloy for being used for the electronic scales such as electronic platform scale, platform scale on the market
Stabilizer blade, partial load effect is resisted using internal bulb self-centering, and such steel alloy stabilizer blade is suitable for support instrument.
In aircraft slow test, because it is contemplated that applying drawing, compressive load to wing, need loading blocks being adhered directly to machine
Wing surface, loading blocks become an entirety with wing, so toppling over and Rotation there is no loading blocks.
And in Aircraft Load rating test, aircraft also needs to carry out test flight in the sky after finishing rating test, flies
Row test request cannot polish to aircraft surfaces, if in calibration directly in plane wing surfaces bonding loading blocks
Words just have to carry out wing coating removal, polishing, so loading blocks can only generally contact machine in Aircraft Load rating test
Wing surface, and loading blocks cannot be adhered to aerofoil surface.But during rating test, and require loading blocks that can fit in always
Aerofoil surface can also set back after the end of the test and set, and this requires have certain deflection angle when loading blocks are deformed with wing
Degree compensation, can be movable such as joint.
In previous Aircraft Load rating test, for the trackability for meeting loading blocks, loading blocks be it is movable, this will
It causes loading blocks before on-test to tilt due to gravity, may there is angle deviating to a certain degree, need testing crew station Yu Fei
Righting is artificially adjusted below machine wing.Aircraft Load rating test load(ing) point quantity is more, and required load number of blocks is more, artificial to adjust
Test loading position difficulty to guarantee loading blocks is big, influences test accuracy, and during the test, testing crew should be as far as possible
Avoid station Yu Feiji in the following, to prevent causing safety accident.So aircraft rating test loading blocks are difficult to begin in currently available technology
The problem of being bonded aerofoil surface eventually and testing crew is needed artificially to adjust is urgently to be resolved.
Utility model content
The purpose of this utility model is to provide a kind of adaptive allocation device with damping function, it is existing for solving
Aircraft rating test loading blocks are difficult to the problem of being bonded aerofoil surface always and testing crew is needed artificially to adjust in technology.
The utility model is achieved through the following technical solutions:
A kind of adaptive allocation device with damping function, including ball screw and lower surface center offer ball
The load plate of face groove, the load plate lower surface are also equipped with cover board, are provided on the cover board for constraining ball screw
Limiting holes, be provided with tapped clamping plate on the ball screw, be clamped with elastomer between the clamping plate and cover board
Cylinder, the load plate upper surface is equipped with rubber slab.
Preferably, it is additionally provided with nut on the ball screw, the clamping plate, elastomer cylinder and cover plate combination structure
Outside is provided with foldable, compression, the radiation fins replied, and the radiation fins is connected between nut and load plate.
Preferably, there are pretightning force between the clamping plate and cover board, the elastomer cylinder elastic compression length is former long
The 3%~8% of degree.
Preferably, the elastomer cylinder is the soft modeling rubber of high resiliency that shore hardness is 40~50, and the rubber slab is
The hard rubber that shore hardness is 90.
Preferably, the rough surface of the steel ball self-centering contact site of the spherical groove and ball screw of the load plate
Degree is Ra0.8~Ra3.2.
Preferably, the sunk screw that the cover board is equally spaced by more is fixedly connected with load plate.
Preferably, the material of the radiation fins is PU- polyurethane.
The utility model compared with prior art, have the following advantages that and the utility model has the advantages that
(1) the utility model makes the utility model by clamping the strong elastomer cylinder of a restoring force in loading blocks
It will not topple over due to gravity before on-test and axial-rotation, also can provide foot during the test for load plate
Enough holding powers guarantee that load plate fits in aerofoil surface always, and it is difficult to solve aircraft rating test loading blocks in the prior art
The problem of to be bonded aerofoil surface always and testing crew is needed artificially to adjust.
(2) the utility model improves existing loading blocks, produces good technical effect, while the letter of its structure
It is single, convenient for detection, maintenance, replacement components, does not also increase experimentation cost excessively, exchanged for greatly with lesser cost consumption
Test progress.
(3) foldable, compression, the radiation fins replied are set outside the nuclear structure of the utility model, which can
It deforms and deforms with the utility model, protect its nuclear structure to be protected from external damage, external erosion always, it is practical to enhance this
Novel durability reduces failure rate.
(4) the phenomenon that elastic after effect or elastic hysteresis being likely to occur due to any elastic material, to guarantee that this is practical new
Type can be preferably bonded aerofoil surface, and pretightning force, the elastomer cylinder are provided between the clamping plate and cover board of the utility model
Elastic compression length under pretightning force effect is the 3%~8% of raw footage.3% is carried out to high pressure rubber cylinder by setting pretightning force
~8% light reduction, the clamping by clamping plate and cover board always of high pressure rubber cylinder, enabling high pressure rubber cylinder is always load plate
Certain support force is provided, the elastic after effect or elastic hysteresis phenomenon being likely to occur are difficult to show, and it can not influence test and carry out,
The demand that loading blocks need to be bonded aerofoil surface always is preferably met, while such light reduction will not be to elastomer
The durability of cylinder, recovery capacity damage.
(5) the elastomer cylinder is the soft modeling rubber of high resiliency that shore hardness is 40~50, good toughness, restoring force
It is good, there is elastomeric property；The rubber slab is the hard rubber that shore hardness is 90, can bear biggish compressive load and be not easy to send out
Raw failure phenomenon, while scraping damage will not be caused to aerofoil surface.
(6) surface roughness of the steel ball self-centering contact site of the spherical groove and ball screw of the load plate is
Ra0.8~Ra3.2 keeps load plate automatically fixed with respect to the steel ball of ball screw by being set with and lesser surface roughness
Heart free deflection, and be unlikely to skid.
(7) sunk screw that the cover board is equally spaced by more is fixedly connected with load plate, enables the cover board
It is securely attached to load plate lower surface, and makes lid surface still smooth again, the clamping elastomer cylinder that can be consolidated.
(8) material of the radiation fins is PU- polyurethane, which has the characteristic of intensity height, good toughness, be not susceptible to
Because of failure phenomenon caused by deforming, skinning densification is tough and tensile, can be well protected the internal core structure of the utility model, prevents
It is by outside damage, external erosion.
Detailed description of the invention
Fig. 1 is the utility model side elevation schematic diagram；
Fig. 2 is the utility model elevational schematic view；
Fig. 3 is A-A sectional view in Fig. 1；
Fig. 4 is state diagram of the utility model before wing deformation；
Fig. 5 is the utility model in the deformed state diagram of wing；
Wherein ball screw -1；Clamping plate -2；Elastomer cylinder -3；Cover board -4；Sunk screw -5；Load version -6；Adhesive layer-
7；Rubber slab -8；Nut -9；Radiation fins -10；Wing-I；The utility model-II；Pressurized strut-III.
Specific embodiment
The utility model is described in further detail below with reference to embodiment, but the embodiments of the present invention is not
It is limited to this.
Embodiment 1:
In conjunction with shown in attached drawing 1-3, a kind of adaptive allocation device with damping function, including ball screw 1 and following table
Face center offers the load plate 6 of spherical groove, and 6 lower surface of load plate is also equipped with cover board 4, on the cover board 4
The limiting holes for constraining ball screw 1 are provided with, tapped clamping plate 2, the clamping plate are provided on the ball screw 1
Elastomer cylinder 3 is clamped between 2 and cover board 4,6 upper surface of load plate is equipped with rubber slab 8.
The principles of the present invention are further illustrated below:
Before carrying out Aircraft Load rating test, in conjunction with shown in attached drawing 4, the utility model II is mounted on pressurized strut III
On, due to the supporting role of elastomer cylinder 3, before on-test the utility model will not due to gravity and topple over and
Axial-rotation, then the utility model II is promoted to by pressurized strut III and loading mechanism the position of I load(ing) point of wing, make rubber
Plate 8 is bonded with the aerofoil of wing I.
During test, in conjunction with shown in attached drawing 5, load plate 6 and can by the rubber slab 8 that adhesive layer 7 is fixed thereon portion
It is arbitrarily deflected within the scope of certain angle with the steel ball self-centering around ball screw 1, after wing I deforms, due to high-elastic
The characteristic that rubber tube 3 is sprung back guarantees that rubber slab 8 is bonded with aerofoil always, meets Aircraft Load rating test load and applies requirement.
After the test, rubber slab 8 is disengaged with shown I aerofoil of wing, due to the elastic characteristic that elastomer cylinder 3 has, in height
Under the action of playing 3 elastic potential energy of rubber tube, the load plate 6 and rubber slab 8 of upper end return to initial position.
Embodiment 2:
It on the basis of embodiment 1, is the core for avoiding the utility model as far as possible further in conjunction with shown in attached drawing 1-5
For structure by external damage, external erosion, the outside of 4 composite structure of the clamping plate 2, elastomer cylinder 3 and cover board is provided with can
It folds, compression, the radiation fins 10 replied, is additionally provided with nut 9 on the ball screw 1, the radiation fins 10 is connected to nut 9
Between load plate 6, which can deform with the utility model and be deformed, and be always ensured that its nuclear structure is not exposed, increase
The durability of strong the utility model, reduces failure rate.
The phenomenon that elastic after effect or elastic hysteresis are likely to occur due to any elastic material, to guarantee the utility model energy
It is preferably bonded aerofoil surface, further, pretightning force, the elastomer cylinder 3 are set between the clamping plate 2 and cover board 4
Under pretightning force effect, elastic compression length is the 3%~8% of raw footage.High pressure rubber cylinder 3 is carried out by setting pretightning force
3%~8% light reduction, the clamping by clamping plate 2 and cover board 4 always of high pressure rubber cylinder 3 enable the high pressure rubber cylinder 3 be always
Load plate 6 provides certain support force, and the elastic after effect or elastic hysteresis phenomenon being likely to occur are difficult to show, will not be to test
Generation adverse effect is carried out, the demand that loading blocks 6 need to be bonded aerofoil surface always, while such light weight pressure are preferably met
Contracting will not durability to elastomer cylinder 3, recovery capacity damage.
Further, the elastomer cylinder 3 is the soft modeling rubber of high resiliency of shore hardness 40~50, this rubber toughness
Well, restoring force is good, has elastomeric property；The rubber slab 8 is the hard rubber of shore hardness 90, and this rubber can bear larger
Compressive load and be not susceptible to failure phenomenon, while scraping damage will not be caused to aerofoil surface.
Further, the surface of the steel ball self-centering contact site of the spherical groove Yu ball screw 1 of the load plate 6
Roughness is Ra0.8~Ra3.2, by being set with and lesser surface roughness, enables the ball screw 1 relatively of load plate 6
Steel ball self-centering free deflection, and be unlikely to skid
Further, the cover board 4 is fixedly connected by the more sunk screws being equally spaced 5 with load plate 6, makes institute
6 lower surface of load plate can be securely attached to by stating cover board 4, and make 4 surface of cover board still smooth again, the high-elastic rubber of clamping that can be consolidated
Packing element 3.
Further, the material of the radiation fins 10 is PU- polyurethane, which has the characteristic of intensity height, good toughness,
Failure phenomenon caused by being not susceptible to because of deformation, skinning densification is tough and tensile, can be well protected the internal core of the utility model
Structure prevents it by outside damage, external erosion.
The principles of the present invention are further illustrated below:
The steel ball self-centering of ball screw 1 is constrained in the spherical groove of 6 lower surface of load plate by cover board 4, with 4
The cover board 4 is fixed in load plate 6 by the sunk screw being equally spaced 5, the spherical groove and bulb of the load plate 6
The surface roughness of the steel ball self-centering contact site of screw rod 1 is Ra1.6, and the upper surface of the load plate 6 passes through adhesive layer 7
It is fixed with the rubber slab 8 that Rockwell hardness is 90, then the elastomer cylinder 3 that Rockwell hardness is 40 is socketed on ball screw 1,
The screw-in ball screw 1 of clamping plate 2 is clamped into elastomer cylinder 3, and so that elastomer cylinder 3 is compressed the 5% of its raw footage, then in outside
It is socketed a PU- polyurethane radiation fins 10, nut 2 is screwed in into ball screw 1, radiation fins 10 is made to be connected to nut 2 and load plate 6
Between.
Embodiment 3:
On the basis of embodiment 1 or 2, in conjunction with shown in attached drawing 1-5, the elastomer cylinder 3 is replaced with into high pressure spring,
Since high pressure spring has elastomeric property, it is not susceptible to be plastically deformed, can be returned back to initially with supporting loading plate 6 and rubber slab 8
Position.
The above is only the preferred embodiment of the utility model, not does limit in any form to the utility model
System, any simple modification made by the above technical examples according to the technical essence of the present invention, equivalent variations, each falls within
Within the protection scope of the utility model.
Claims (7)
1. a kind of adaptive allocation device with damping function, including ball screw (1) and lower surface center offer
The load plate (6) of spherical groove, which is characterized in that load plate (6) lower surface is also equipped with cover board (4), the cover board (4)
On be provided with limiting holes for constraining ball screw (1), be provided with tapped clamping plate (2) on the ball screw (1),
It is clamped with elastomer cylinder (3) between the clamping plate (2) and cover board (4), load plate (6) upper surface is equipped with rubber slab
(8).
2. a kind of adaptive allocation device with damping function according to claim 1, which is characterized in that the bulb
It is additionally provided on screw rod (1) nut (9), the external setting of the clamping plate (2), elastomer cylinder (3) and cover board (4) composite structure
There are foldable, compression, the radiation fins (10) replied, the radiation fins (10) is connected between nut (9) and load plate (6).
3. a kind of adaptive allocation device with damping function according to claim 1 or 2, which is characterized in that described
There are pretightning force between clamping plate (2) and cover board (4), elastomer cylinder (3) the elastic compression length is the 3%~8% of raw footage.
4. a kind of adaptive allocation device with damping function according to claim 3, which is characterized in that described high-elastic
Rubber tube (3) is the soft modeling rubber of high resiliency of shore hardness 40~50, and the rubber slab (8) is the hard plastic rubber of shore hardness 90
Glue.
5. according to claim 1, a kind of adaptive allocation device with damping function, feature described in 2,4 any one
It is, the surface roughness of the steel ball self-centering contact site of the spherical groove and ball screw (1) of the load plate (6) is
Ra0.8~Ra3.2.
6. a kind of adaptive allocation device with damping function according to claim 5, which is characterized in that the cover board
(4) it is fixedly connected by the more sunk screws being equally spaced (5) with load plate (6).
7. a kind of adaptive allocation device with damping function according to claim 2, which is characterized in that the ripple
The material for covering (10) is PU- polyurethane.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821214880.2U CN208672263U (en) | 2018-07-30 | 2018-07-30 | A kind of adaptive allocation device with damping function |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821214880.2U CN208672263U (en) | 2018-07-30 | 2018-07-30 | A kind of adaptive allocation device with damping function |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208672263U true CN208672263U (en) | 2019-03-29 |
Family
ID=65832173
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821214880.2U Active CN208672263U (en) | 2018-07-30 | 2018-07-30 | A kind of adaptive allocation device with damping function |
Country Status (1)
| Country | Link |
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| CN (1) | CN208672263U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114633900A (en) * | 2022-05-20 | 2022-06-17 | 中国飞机强度研究所 | Large-stroke aircraft airfoil static loading system and method for aircraft strength test |
-
2018
- 2018-07-30 CN CN201821214880.2U patent/CN208672263U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114633900A (en) * | 2022-05-20 | 2022-06-17 | 中国飞机强度研究所 | Large-stroke aircraft airfoil static loading system and method for aircraft strength test |
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