CN205889166U - A six -freedom degree movement device for wind tunnel test - Google Patents
A six -freedom degree movement device for wind tunnel test Download PDFInfo
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- CN205889166U CN205889166U CN201620826138.1U CN201620826138U CN205889166U CN 205889166 U CN205889166 U CN 205889166U CN 201620826138 U CN201620826138 U CN 201620826138U CN 205889166 U CN205889166 U CN 205889166U
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Abstract
The utility model discloses a six -freedom degree movement device for wind tunnel test, include: move the platform, its include the main part and rotationally set up in connecting rod in the main part, lift -over actuating mechanism, its set up in move on the platform, lift -over actuating mechanism is connected to a connecting rod, with to lift -over drive power is applyed to the connecting rod, six branches, the one end of every branch is connected to through a rotating pair and first articulated elements the main part, six straight -line motion mechanism, even configuration is in move the both sides of platform, every straight -line motion mechanism is connected to the other end of every branch through the second articulated elements to apply along the drive power of horizontal direction motion to every branch. The utility model provides a parallel six -freedom degree movement device has obtained bigger rigidity, higher precision and littleer wind -tunnel jam degree.
Description
Technical field
This utility model is related to wind tunnel test field, more particularly, to a kind of six-freedom motion dress for wind tunnel test
Put.
Background technology
During aircraft flight, because execution task needs, need store Combinations (guided missile, auxiliary fuel tank, rocket, fish
Thunder) to launch or dish out, some unmanned planes are also required to, by machine tool carrying, throw in the air.In launch process, store Combinations are in machine tool
Flow-disturbing in, there is complex jamming between machine tool and store Combinations, store Combinations may be led to cannot successfully to dish out, serious meeting leads to
Store Combinations are bumped against with machine tool.
For solving the above problems, needing in tunnel simulation store Combinations, machine bullet, stage separation process is that track captured
Journey, the stressing conditions of chorista (including store Combinations, guided missile, stage separation body) model in measurement whole process.To divide in test
Isolated model is fixed on a certain position, measures stressing conditions, calculates under this stressing conditions according to kinetics equation, t second rear mold
The displacement of type and attitude, result of calculation is sent to six-freedom motion device by computer, motion in wind-tunnel for the Controlling model
Displacement and attitude, the theoretical position after making model reach the t second and attitude, repeat said process, afterwards until completing whole track
Acquisition procedure.
Store Combinations track capture technique is applied in five sixties first by the U.S., such as the research of Taylor Dai Wei naval ship and
Centre of development its 7 feet × 10 feet transonic speed continuous wind tunnel, water airline in 4 feet of bottom blowing type high-speed wind tunnels and
The Halo vest track capture systems that Kang Naier Aviation Test room is set up on 8 feet transonic speed continuous wind tunnel, 70 years
In succession develop more ripe track capture systems for the later stage U.S., Britain, France.China just starts to develop in the eighties
And application, domestic at present existing six-freedom motion device is based on series-mode frame.
As shown in figure 1, existing tandem six-freedom motion device is from x to Bit andits control motor 1, slide block 2, nut 3,
Leading screw 4, the second rotating shaft electric motor 5, turn the angle of attack (α) motor 6, tumbler corner (β) motor 7, guided missile model 8, turn γ angle motor 9 and
One rotating shaft electric motor 10 forms, and including a long cantilever beam structure, cannot be avoided strong to structure using this cantilever beam structure
The weakening of degree, three angles drive, control and testing equipment can increase the congestion degree of wind-tunnel, to model contracting than propose higher will
Ask, also result of the test is had a significant impact.
Utility model content
This utility model has designed and developed that a kind of rigidity is higher, and precision is higher, wind-tunnel congestion degree less for wind-tunnel examination
The six-freedom motion device tested.
The technical scheme that this utility model provides is:
A kind of six-freedom motion device for wind tunnel test, comprising:
Moving platform；
Rolling drive mechanism, it is arranged on described moving platform, and described rolling drive mechanism connects to a connecting rod, with to
Described connecting rod applies rolling driving force；
Six poles, one end of each pole is connected to described moving platform by a revolute and the first articulated elements；
Six straight-line motion mechanisms, are uniformly configured in the both sides of described moving platform, and each straight-line motion mechanism passes through second
Articulated elements connects to the other end of each pole, with the driving force applying to move in the horizontal direction to each pole.
Preferably, the described six-freedom motion device for wind tunnel test, also includes:
Six chutes, are respectively formed on two side walls of wind-tunnel；
Described six straight-line motion mechanisms are arranged at the outside of wind-tunnel, the power output member of each straight-line motion mechanism with
Described chute can be passed through along the mode of described slide, be hinged to the other end of each pole by the second articulated elements.
Preferably, in the described six-freedom motion device for wind tunnel test, described moving platform be from one to
The main rod body of rear-inclined setting and the claw-type structure of six branch's compositions stretched out backward, are one group in six branches two-by-two, from
Top to bottm it is sequentially distributed, and one group of pole is highly gone up positioned at identical, stretches out to both sides respectively with respect to described main rod body, each
One end of pole is connected to each branch by a revolute and the first articulated elements.
Preferably, in the described six-freedom motion device for wind tunnel test, described rolling drive mechanism setting
In the upper end of described main rod body, described connecting rod is stretched out to the front side of described main rod body.
Preferably, in the described six-freedom motion device for wind tunnel test, described first articulated elements and described
Second articulated elements is Hooke's hinge.
Preferably, in the described six-freedom motion device for wind tunnel test, at least one of six poles
Pole is expansion link.
Preferably, the described six-freedom motion device for wind tunnel test, also includes:
Control device, it connects to six straight-line motion mechanisms, to input control signal to six straight-line motion mechanisms.
Preferably, in the described six-freedom motion device for wind tunnel test, described rolling drive mechanism is rolling
Rotating motor.
Preferably, in the described six-freedom motion device for wind tunnel test, described moving platform and described pole
Windward side all streamlined.
Six-freedom motion device for wind tunnel test described in the utility model has the advantages that
(1) compared with existing tandem mechanism in six degree of freedom, this utility model provides a kind of parallel six degrees of freedom
Telecontrol equipment, obtains bigger rigidity, higher precision and less wind-tunnel congestion degree.
(2) side chain, the gap on each side chain and error are constituted by a pole and a straight-line motion mechanism
Will not build up, the gap between some situations difference side chain and error even can be cancelled out each other, thus this utility model
It is obtained in that higher precision.
(3) straight-line motion mechanism is arranged on outside the wall of test chamber hole, reduces six-freedom motion device in wind-tunnel
Blockage ratio.
(4) windward side of moving platform and pole is streamlined, can reduce frontal resistance, reduces six-freedom motion dress simultaneously
The stress deformation put.
(5) moving platform adopts hexa-claw shape structure, reduces blockage ratio and the frontal resistance of moving platform further.
Brief description
Fig. 1 is the structural representation of tandem six-freedom motion device in prior art.
Fig. 2 is the structural representation of the six-freedom motion device for wind tunnel test described in the utility model.
Fig. 3 is the structural representation of moving platform described in the utility model.
Specific embodiment
Below in conjunction with the accompanying drawings this utility model is described in further detail, to make those skilled in the art with reference to explanation
Book word can be implemented according to this.
As shown in Figures 2 and 3, this utility model provides a kind of six-freedom motion device for wind tunnel test, comprising:
Moving platform 7；Rolling drive mechanism 8, it is arranged on described moving platform, and described rolling drive mechanism connects to a connecting rod 11,
To apply rolling driving force to described connecting rod 11；Six poles 4, a revolute 5 and first is passed through in one end of each pole 4
Articulated elements 6 connects to described moving platform；Six straight-line motion mechanisms 2, are uniformly configured in the both sides of described moving platform 7, each is straight
Line movement mechanism 2 is connected to the other end of each pole 4 by the second articulated elements 3, to apply in the horizontal direction to each pole
The driving force of motion.
The work process of six-freedom motion device described in the utility model is: model is installed in connecting rod, in wind
Six straight-line motion mechanisms 2 are installed in the fixed position of hole test section 1, and in process of the test, the instruction of computer output control, provides model 9
Six-freedom degree kinematic parameter, the linear motion including three directions of x, y, z and the rotational motion around three coordinate axess,
The displacement commands of six-freedom degree are decomposed each straight-line motion mechanism 2 and rolling electricity according to above-mentioned control instruction by control device
In machine 8, six straight-line motion mechanisms drive six poles 4 to move to relevant position respectively, and the displacement assemblage zone of six poles moves
Moving platform 7 reaches relevant position, thus the five of implementation model degree of freedom motions, then coordinate rolling motor to complete the rolling of model 9
Transhipment is dynamic, is finally completed the motion in six-freedom degree for the model 9.
In the linear motion that each straight-line motion mechanism drives each pole to do horizontal direction, pole is transported with respect to straight line
Motivation structure and moving platform rotate, and the rotation with respect to own axes also occurs simultaneously, and therefore, pole passes through the second articulated elements
Connect to straight-line motion mechanism, connected to moving platform by revolute and the first articulated elements.
In a preferred embodiment, the described six-freedom motion device for wind tunnel test, also includes: six
Chute 10, is respectively formed on two side walls of wind-tunnel；Described six straight-line motion mechanisms 2 are arranged at the outside of wind-tunnel, each
The power output member of straight-line motion mechanism 2 is by can be hinged by second along passing through described chute in the way of described slide
Part 3 is hinged to the other end of each pole 4.When straight-line motion mechanism drives pole, the power output structure of straight-line motion mechanism
Part moves along chute, thus driving pole to move.
This embodiment linear movement mechanism is arranged on the outside of wind-tunnel, and that is, only moving platform, pole and model are located at wind-tunnel
Inside, reduces the space that six-freedom motion device takies in wind-tunnel, thus reduces wind-tunnel congestion degree.
Specifically, straight-line motion mechanism can be made up of linear drive motor, leading screw and nut, and nut is as power output
Component is hinged to the other end of pole.
In a preferred embodiment, in the described six-freedom motion device for wind tunnel test, described dynamic flat
Platform 7 is the claw-type structure being made up of a main rod body 12 tilting backwards setting and six branches stretched out backward, six branches
In two-by-two be one group, be sequentially distributed from top to bottom, and one group of pole highly gone up positioned at identical, with respect to described main rod body distinguish
Stretch out to both sides, one end of each pole is connected to each branch by a revolute and the first articulated elements.Specifically, main body
Partly first stretch out a community branch backward, then connected to a pair of the branch 14 positioned at the top by this community branch；Bottom
A pair of branch 13 connect to the lower end of main rod body, connect to the middle part of main rod body positioned at middle branch 15.
In this embodiment, moving platform is in claw-type structure, further reduces wind-tunnel blockage ratio and frontal resistance.
In addition, moving platform is processed using high strength alloy steel, there is higher intensity so that the size energy of moving platform
Enough reduce further, so can reduce blockage ratio, and reduce frontal resistance.
In a preferred embodiment, in the described six-freedom motion device for wind tunnel test, described rolling
Drive mechanism is arranged at the upper end of described main rod body, and described connecting rod is stretched out to the front side of described main rod body.Rolling drive mechanism
It is arranged at the front end of main rod body, connecting rod is stretched out to the front side of main rod body, model is connected in connecting rod, in rolling drive mechanism
In the presence of occur rolling.
In a preferred embodiment, in order to increase the angle of rotation that pole is with respect to straight-line motion mechanism and moving platform
Degree, improves the motility of whole device, in the described six-freedom motion device for wind tunnel test, described first articulated elements
6 and described second articulated elements 3 be Hooke's hinge.
In a preferred embodiment, in the described six-freedom motion device for wind tunnel test, six poles 4
At least one of pole be expansion link, can partly or entirely adopt expansion link in six poles, the change of bar length can
Make the space of mechanism bigger, and can partly avoid the generation of singularity.
In a preferred embodiment, the described six-freedom motion device for wind tunnel test, also includes: controls
Device, it connects to six straight-line motion mechanisms, to input control signal to six straight-line motion mechanisms.Using control device control
Six straight-line motion mechanisms of system, can improve the work efficiency of mechanism further.
In a preferred embodiment, in the described six-freedom motion device for wind tunnel test, described rolling
Drive mechanism 8 is rolling motor.Rolling motor can do positive and negative 360 ° of rotation, the rolling movement of implementation model with driving model.
In a preferred embodiment, in the described six-freedom motion device for wind tunnel test, described dynamic flat
The windward side of platform 7 and described pole 4 is all streamlined, can reduce frontal resistance.
Cable hood or cable hole are disposed with mechanism so that power line and holding wire can be connected to wind-tunnel at model
Outward.There are cable hole and cable hood in moving platform, in pole, have cable hole, described straight-line motion mechanism has drag chain, can be by cable
It is put in drag chain.
Although embodiment of the present utility model is disclosed as above, it is not restricted in description and embodiment
Listed utilization, it can be applied to various suitable fields of the present utility model completely, for those skilled in the art,
It is easily achieved other modification, therefore under the general concept being limited without departing substantially from claim and equivalency range, this reality
It is not limited to specific details with new and shown here as the legend with description.
Claims (9)
1. a kind of six-freedom motion device for wind tunnel test is it is characterised in that include:
Moving platform；
Rolling drive mechanism, it is arranged on described moving platform, and described rolling drive mechanism connects to a connecting rod, with to described
Connecting rod applies rolling driving force；
Six poles, one end of each pole is connected to described moving platform by a revolute and the first articulated elements；
Six straight-line motion mechanisms, are uniformly configured in the both sides of described moving platform, and it is hinged that each straight-line motion mechanism passes through second
Part connects to the other end of each pole, with the driving force applying to move in the horizontal direction to each pole.
2. it is used for the six-freedom motion device of wind tunnel test as claimed in claim 1 it is characterised in that also including:
Six chutes, are respectively formed on two side walls of wind-tunnel；
Described six straight-line motion mechanisms are arranged at the outside of wind-tunnel, and the power output member of each straight-line motion mechanism is with can edge
The mode of described slide passes through described chute, is hinged to the other end of each pole by the second articulated elements.
3. it is used for the six-freedom motion device of wind tunnel test as claimed in claim 1 it is characterised in that described moving platform is
The claw-type structure being made up of a main rod body tilting backwards setting and six branches stretched out backward, in six branches be two-by-two
One group, it is sequentially distributed from top to bottom, and one group of pole is highly gone up positioned at identical, stretches to both sides respectively with respect to described main rod body
Go out, one end of each pole is connected to each branch by a revolute and the first articulated elements.
4. it is used for the six-freedom motion device of wind tunnel test as claimed in claim 3 it is characterised in that described rolling drives
Mechanism is arranged at the upper end of described main rod body, and described connecting rod is stretched out to the front side of described main rod body.
5. the six-freedom motion device for wind tunnel test as described in claim 1 or 2 or 3 is it is characterised in that described
One articulated elements and described second articulated elements are Hooke's hinge.
6. the six-freedom motion device for wind tunnel test as described in claim 1 or 2 or 3 is it is characterised in that six are propped up
At least one of bar pole is expansion link.
7. the six-freedom motion device for wind tunnel test as described in claim 1 or 2 or 3 is it is characterised in that also wrap
Include:
Control device, it connects to six straight-line motion mechanisms, to input control signal to six straight-line motion mechanisms.
8. it is used for the six-freedom motion device of wind tunnel test as claimed in claim 1 it is characterised in that described rolling drives
Mechanism is rolling motor.
9. be used for as claimed in claim 1 the six-freedom motion device of wind tunnel test it is characterised in that described moving platform and
The windward side of described pole is all streamlined.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620826138.1U CN205889166U (en) | 2016-08-01 | 2016-08-01 | A six -freedom degree movement device for wind tunnel test |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620826138.1U CN205889166U (en) | 2016-08-01 | 2016-08-01 | A six -freedom degree movement device for wind tunnel test |
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| CN205889166U true CN205889166U (en) | 2017-01-18 |
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| CN201620826138.1U Active CN205889166U (en) | 2016-08-01 | 2016-08-01 | A six -freedom degree movement device for wind tunnel test |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110469564A (en) * | 2019-08-15 | 2019-11-19 | 北京理工大学 | A kind of fluid multiple degrees of freedom means of active gulation |
| CN111693245A (en) * | 2020-06-23 | 2020-09-22 | 中国空气动力研究与发展中心超高速空气动力研究所 | Non-decoupling motion allocation method for continuous on-orbit linkage track capture experiment |
-
2016
- 2016-08-01 CN CN201620826138.1U patent/CN205889166U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110469564A (en) * | 2019-08-15 | 2019-11-19 | 北京理工大学 | A kind of fluid multiple degrees of freedom means of active gulation |
| CN110469564B (en) * | 2019-08-15 | 2020-09-01 | 北京理工大学 | Fluid multi-degree-of-freedom active adjusting device |
| CN111693245A (en) * | 2020-06-23 | 2020-09-22 | 中国空气动力研究与发展中心超高速空气动力研究所 | Non-decoupling motion allocation method for continuous on-orbit linkage track capture experiment |
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