CN107565217A - One-dimensional pendulum model Huan Kui mechanisms - Google Patents
One-dimensional pendulum model Huan Kui mechanisms Download PDFInfo
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- CN107565217A CN107565217A CN201710639100.2A CN201710639100A CN107565217A CN 107565217 A CN107565217 A CN 107565217A CN 201710639100 A CN201710639100 A CN 201710639100A CN 107565217 A CN107565217 A CN 107565217A
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- feed
- feedback
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- pitching cylinder
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Abstract
The present invention proposes a kind of one-dimensional pendulum model Huan Kui mechanisms, including feed spider, pitching cylinder, changes feedback support tube；Feed spider is disposed with multiple feed installing ports；The central axis of all feed installing ports is in same plane, and the central axis of all feed installing ports is intersected in a bit；After feed is put installed in feed branch, the phase heart of all feeds and residing exterior antenna primary reflection surface intersection point are in using joint as on the same circular arc in the center of circle；Feed spider is arranged on pitching cylinder upper end, and pitching cylinder lower end is rotatably assorted by changing feedback rotary shaft with changing feedback support tube；Huan Kui rotating shaft center axis crosses joint；Pitching cylinder and change feedback support tube between be also equipped with changing feedback driving part, change feedback driving part can drive the pitching cylinder around change feedback rotary shaft rotate.The present invention is compact-sized, is easy to manufacture, and motion mode is simple, and driving power is small, it is only necessary to which simple one-dimensional gyration can be easy to equipment to install and safeguard to realize the switch operating between more feeds, securely and reliably.
Description
Technical field
The present invention relates to antenna to change feedback field of mechanisms, specially a kind of one-dimensional pendulum model Huan Kui mechanisms, can be applied to
Multiple frequency range feeds are installed because of need of work to realize in the big-and-middle-sized antenna product switched in real time.
Background technology
Huan Kui mechanisms are the conventional frequency range switching mechanisms of multiband aerial, are mainly used in the switching of different frequency range feed, make
Different frequency range feed moves to the phase heart position of antenna interarea and reliably fixed according to requirement.Change feedback device extensive use
In fields such as the radar communication antenna systems such as various survey of deep space, satellite navigation, aerial navigation.
At present, the common form of antenna Huan Kui mechanisms mainly has minor face rotation to change feedback, slide rail lifts and changes feedback and rotating disc type
Feedback is changed, and one-dimensional pendulum model Huan Kui mechanisms proposed by the present invention are changed in feedback applied to antenna, are at home and abroad still belonged to the first time.
Feedback is changed in minor face rotation：Feed is fixed, ensure that feed and its accompany equipment work it is reliable and stable.It is relative to account for
There is space smaller, destabilizing factor is relatively few.But kinematic accuracy requires higher, and minor face is asymmetric curved surface, and processing and manufacturing is complicated.
Feedback is changed in slide rail lifting：Feed by the linear motion on guide rail, can be achieved up and down, slide laterally so that feed
The phase heart reaches aerial focus position.This Huan Kui mechanism has certain requirement to the space of Cabin.And require often to cover feed band one
Sets of transmission mechanism, mechanism are complicated.
Rotating disc type changes feedback：Each frequency range feed, which is placed, to be arranged on the rotating disk for deviateing antenna symmetry axle, by the rotation of rotating disk,
Each work feed is set to reach focal position and the locking of antenna, so as to realize the switching of different frequency range feed.It is such a to change feedback machine
Structure can install that feed quantity is more, and it is bigger that Cabin occupies space.
Swing type changes feedback：Whole feed system is promoted to be done around hinged-support rotating mechanism by the stretching motion of screw pair
Reciprocal rotary motion, feedback function is changed so as to realize.The feed switching mechanism structural principle is simple, easy to operate, it is only necessary to letter
Single linear motion and rotary motion can be to realize the switch operating in feed storehouse between more feeds.But it changes feed during feedback
Quantity is restricted, and number can not be too many, to arrange multiple feeds, is then needed oscillating quantity being changed into two dimension, is considerably increased
Mechanism complexity.
The content of the invention
As described in the background art, respectively there are shortcoming in the Huan Kui mechanisms at present applied to antenna, and have certain limitation, change
Feedback mechanism is often subject to the space size of Cabin, fabricates the limitation of difficulty, the complexity of mechanism.To solve prior art
The problem of existing, the present invention propose a kind of one-dimensional pendulum model Huan Kui mechanisms, compact-sized, be easy to manufacture, and motion mode is simple,
Driving power is small, it is only necessary to which simple one-dimensional gyration can be to realize the switch operating between more feeds, securely and reliably, just
Install and safeguard in equipment, have in the antenna project for considering economic serviceability and maintenance or capacity expansion and upgrading transformation greatly excellent
Gesture.
The technical scheme is that：
A kind of one-dimensional pendulum model Huan Kui mechanisms, it is characterised in that：Including feed spider, pitching cylinder, change feedback support tube；
The feed branch puts the feed number installed as required, is disposed with multiple feed installing ports；All feed peaces
The central axis of dress mouth is in same plane, and the central axis of all feed installing ports is intersected in a bit；When feed is installed
After on feed branch set, the phase heart of all feeds and residing exterior antenna primary reflection surface intersection point are in using joint as circle
On the same circular arc of the heart；
The feed spider is fixedly mounted on the pitching cylinder upper end, and the pitching cylinder lower end is by changing feedback rotary shaft with changing
Feedback support tube is rotatably assorted；The feedback support tube that changes is fixedly mounted in the fixed component of exterior antenna；It is described to change feedback rotary shaft
The excessively described joint of central axis, and perpendicular to the plane residing for all feed installing port central axis；
The pitching cylinder and change between feedback support tube and be also equipped with changing feedback driving part, the feedback driving part that changes can drive
Move the pitching cylinder and rotated around feedback rotary shaft is changed.
Further preferred scheme, a kind of one-dimensional pendulum model Huan Kui mechanisms, it is characterised in that：All feed installing ports
Plane residing for central axis is perpendicular to exterior antenna primary reflection surface pitch axis.
Further preferred scheme, a kind of one-dimensional pendulum model Huan Kui mechanisms, it is characterised in that：It is described to change feedback drive division
Part is connected with external control device, and is controlled by external control device, and described change in feedback rotary shaft is provided with rotation change, for gathering
The pitching cylinder anglec of rotation, and export to external control device, form backfeed loop.
Further preferred scheme, a kind of one-dimensional pendulum model Huan Kui mechanisms, it is characterised in that：It is described to change feedback drive division
Part is realized using motor driving push rod rectilinear motion mode drives the pitching cylinder to be rotated around feedback rotary shaft is changed.
Further preferred scheme, a kind of one-dimensional pendulum model Huan Kui mechanisms, it is characterised in that：The pitching cylinder around
Change on feedback rotation rotational axis direction and limit switches are installed, the limit switch can output signal to external control device.
Further preferred scheme, a kind of one-dimensional pendulum model Huan Kui mechanisms, it is characterised in that：The feed branch is put
The angle of adjacent feed installing port central axis is meeting that illumination angle range signals do not block mutually and feed can be installed
It is as small as possible under it is required that.
Beneficial effect
On the premise of realizing identical function and meeting antenna structure system general technical requirement, one-dimensional pendulum model changes feedback machine
Structure has the characteristics that：
1) motion mode is simple, driving power is small.
2) simple in construction, parts type and quantity are few, and processing and manufacturing is easy, and cost is low.
3) it is compact-sized, it is easily installed.
The additional aspect and advantage of the present invention will be set forth in part in the description, and will partly become from the following description
Obtain substantially, or recognized by the practice of the present invention.
Brief description of the drawings
The above-mentioned and/or additional aspect and advantage of the present invention will become in the description from combination accompanying drawings below to embodiment
Substantially and it is readily appreciated that, wherein：
Fig. 1：The structural representation of the present invention；Wherein：1st, multifrequency feed；2nd, pitching cylinder；3rd, feedback driving part is changed；4th, feedback is changed
Support tube；5th, feedback rotary shaft is changed.
Fig. 2：Three kinds of working state schematic representations in the embodiment of the present invention.
Embodiment
Embodiments of the invention are described below in detail, the example of the embodiment is shown in the drawings, wherein from beginning to end
Same or similar label represents same or similar element or the element with same or like function.Below with reference to attached
The embodiment of figure description is exemplary, it is intended to for explaining the present invention, and is not considered as limiting the invention.
In the description of the invention, it is to be understood that term " " center ", " longitudinal direction ", " transverse direction ", " length ", " width ",
" thickness ", " on ", " under ", "front", "rear", "left", "right", " vertical ", " level ", " top ", " bottom ", " interior ", " outer ", " up time
The orientation or position relationship of the instruction such as pin ", " counterclockwise " are based on orientation shown in the drawings or position relationship, are for only for ease of
Description is of the invention to be described with simplified, rather than the device or element of instruction or hint meaning must be with specific orientation, Yi Te
Fixed azimuth configuration and operation, therefore be not considered as limiting the invention.
Respectively there are shortcoming in the Huan Kui mechanisms applied to antenna at present, and have certain limitation, and Huan Kui mechanisms are often subject to present
The space size in source cabin, the limitation for fabricating difficulty, the complexity of mechanism.To solve the problems, such as that prior art is present, this hair
It is bright to propose a kind of one-dimensional pendulum model Huan Kui mechanisms, there are three feeds in the present embodiment.
A kind of one-dimensional pendulum model Huan Kui mechanisms in the present embodiment include feed spider, pitching cylinder, change feedback support tube.
The feed branch, which is put, is disposed with 3 feed installing ports, and the central axis of all feed installing ports is in same flat
In face, and the central axis of all feed installing ports is intersected in a bit；After feed is put installed in feed branch, all feeds
The phase heart and residing exterior antenna primary reflection surface intersection point are in using joint as on the same circular arc in the center of circle.
It is described state feed branch and put the angle of adjacent feed installing port central axis meeting that illumination angle range signals are mutual
Do not block and requirement that feed can be installed under it is as small as possible, reduce it as far as possible and antenna main reflector blocked.
The feed spider is fixedly mounted on the pitching cylinder upper end, and the pitching cylinder lower end is by changing feedback rotary shaft with changing
Feedback support tube is rotatably assorted；The feedback support tube that changes is fixedly mounted in the fixed component of exterior antenna；It is described to change feedback rotary shaft
The excessively described joint of central axis, and perpendicular to the plane residing for all feed installing port central axis.
The pitching cylinder and change between feedback support tube and be also equipped with changing feedback driving part, the feedback driving part that changes can drive
Move the pitching cylinder and rotated around feedback rotary shaft is changed.
During work, change feedback driving part driving pitching cylinder and rotated around feedback rotary shaft is changed, the feed of frequency range is into needed for swing
Heart position, work feed central axis is set to be overlapped with exterior antenna reflecting surface central axis, and the phase heart and antenna for the feed that works
Focus overlaps.When frequency range switches, change feedback driving part driving pitching cylinder and rotated around feedback rotary shaft is changed, the feed of work will not needed
Remove, then the feed for needing work is moved into center, as shown in Figure 2.
In the present embodiment, the feedback driving part that changes is connected with external control device, and is controlled by external control device, institute
State to change in feedback rotary shaft and rotation change is installed, for gathering the pitching cylinder anglec of rotation, and export to external control device, form feedback
Loop, ensure that feed changes positional precision when being fed to.The pitching cylinder around change feedback rotation rotational axis direction on install it is limited
Bit switch, the limit switch can output signal to external control device, it is ensured that safety.The feedback driving part that changes is using electricity
Machine driving push rod rectilinear motion mode, which is realized, drives the pitching cylinder to be rotated around feedback rotary shaft is changed.Electric pushrod one end, which is hinged on, bows
Face upward on cylinder, the other end, which is hinged on, to be changed on feedback support tube, under the driving of motor, push rod linear extension or contraction, drives pitching cylinder
Around feedback rotary shaft rotation is changed, feedback is changed in realization.Changing feedback driving part in the present embodiment includes T-shaped leading screw, motor, reductor, changed
To parts such as device, power transmission shaft, shaft coupling, brake, clutches, have that to change stable self-locking when being fed to, running steady, just
In installation and debugging, service life is long the advantages that.
Applicant also found in actual use, changes feedback driving part and stuck situation often occurs, sent out by analysis later
It is now caused by being acted in motion by moment of torsion caused by malformation, for this on feed branch covers, in all feed installing ports
Plane residing for mandrel line is perpendicular to exterior antenna primary reflection surface pitch axis, to avoid changing feedback driving part in antenna principal reflection
By extra moment loading during the elevating movement of face.
In the present embodiment, change feedback system change feedback precision mainly with feed spider dimensional accuracy, assembly precision, electric pushrod
Precision, servo accuracy and four aspects of malformation precision are relevant.
Feed spider dimensional accuracy is ensured by machining accuracy, can reach 0.5mm.Electric pushrod precision includes push rod
Stroke return difference 0.1mm, push rod both ends are hinged precision 0.04mm, overall accuracy 0.14mm.SERVO CONTROL precision by encoding error, watch
Clothes driving error, servo control error, 1 ' is can reach using single motor driving SERVO CONTROL precision, is caused at feed phase heart position
Change be about 0.5mm.Then overall accuracy is：0.5+0.14+0.5+0.21+3.01=4.36mm (max, C frequency range), that is, offseting
During 4.36mm, the error in pointing thus introduced is 8 rads.
Because process and assemble is constant error, distortion inaccuracy is luffing angle function, equal when carrying out direction model amendment
There is the possibility further reduced, electric pushrod and servo-drive system precision are random error, can not carry out model correction.To sum up institute
State, feedback system is changed after model correction and see the table below in the antenna pointing error that different frequency range introduces：
Table 1 changes different frequency range error in pointing caused by feedback system
Current one-dimensional pendulum model Huan Kui mechanisms obtain in 40 meters of the country large aperture antenna system manufactured by applicant
Preliminary Applications, verified by engineering measurement, the position error of the Huan Kui mechanisms can meet antenna electrical performance index request.
Although embodiments of the invention have been shown and described above, it is to be understood that above-described embodiment is example
Property, it is impossible to limitation of the present invention is interpreted as, one of ordinary skill in the art is not departing from the principle and objective of the present invention
In the case of above-described embodiment can be changed within the scope of the invention, change, replace and modification.
Claims (6)
- A kind of 1. one-dimensional pendulum model Huan Kui mechanisms, it is characterised in that：Including feed spider, pitching cylinder, change feedback support tube；The feed branch puts the feed number installed as required, is disposed with multiple feed installing ports；All feed installing ports Central axis be in same plane, and the central axis of all feed installing ports is intersected in a bit；When feed is arranged on feedback After source branch is put, the phase heart of all feeds and residing exterior antenna primary reflection surface intersection point are in using joint as the center of circle On same circular arc；The feed spider is fixedly mounted on the pitching cylinder upper end, and the pitching cylinder lower end is by changing feedback rotary shaft and changing feedback branch Support cylinder is rotatably assorted；The feedback support tube that changes is fixedly mounted in the fixed component of exterior antenna；The Huan Kui rotating shaft center The excessively described joint of axis, and perpendicular to the plane residing for all feed installing port central axis；The pitching cylinder and change between feedback support tube and be also equipped with changing feedback driving part, the feedback driving part that changes can drive institute State pitching cylinder and rotated around feedback rotary shaft is changed.
- A kind of 2. one-dimensional pendulum model Huan Kui mechanisms according to claim 1, it is characterised in that：All feed installing port central shafts Plane residing for line is perpendicular to exterior antenna primary reflection surface pitch axis.
- A kind of 3. one-dimensional pendulum model Huan Kui mechanisms according to claim 1 or claim 2, it is characterised in that：It is described to change feedback driving part It is connected with external control device, and is controlled by external control device, described change in feedback rotary shaft is provided with rotation change, is bowed for gathering An anglec of rotation is faced upward, and is exported to external control device, forms backfeed loop.
- A kind of 4. one-dimensional pendulum model Huan Kui mechanisms according to claim 3, it is characterised in that：The feedback driving part that changes uses Motor driving push rod rectilinear motion mode, which is realized, drives the pitching cylinder to be rotated around feedback rotary shaft is changed.
- A kind of 5. one-dimensional pendulum model Huan Kui mechanisms according to claim 4, it is characterised in that：The pitching cylinder around change feedback rotation Limit switches are installed, the limit switch can output signal to external control device on axis of rotation direction.
- A kind of 6. one-dimensional pendulum model Huan Kui mechanisms according to claim 5, it is characterised in that：The feed branch puts adjacent feedback The angle of source installing port central axis is in the case where meeting illumination angle range signals do not block mutually and feed can be installed requirement It is as small as possible.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710639100.2A CN107565217A (en) | 2017-07-31 | 2017-07-31 | One-dimensional pendulum model Huan Kui mechanisms |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710639100.2A CN107565217A (en) | 2017-07-31 | 2017-07-31 | One-dimensional pendulum model Huan Kui mechanisms |
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| CN107565217A true CN107565217A (en) | 2018-01-09 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201710639100.2A Pending CN107565217A (en) | 2017-07-31 | 2017-07-31 | One-dimensional pendulum model Huan Kui mechanisms |
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1995006963A1 (en) * | 1993-08-30 | 1995-03-09 | Souren Parisovich Herouni | Antenna system |
| CN200941426Y (en) * | 2006-08-14 | 2007-08-29 | 西安电子科技大学 | Multi-beam feedback source auto switching gear of large-scale flexible radio telescope antenna |
| CN103594798A (en) * | 2013-11-20 | 2014-02-19 | 中国船舶重工集团公司第七二四研究所 | Switching locating device for double feed sources |
| CN105531872A (en) * | 2013-06-17 | 2016-04-27 | 祖迪雅克数据系统公司 | Source for parabolic antenna |
-
2017
- 2017-07-31 CN CN201710639100.2A patent/CN107565217A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1995006963A1 (en) * | 1993-08-30 | 1995-03-09 | Souren Parisovich Herouni | Antenna system |
| CN200941426Y (en) * | 2006-08-14 | 2007-08-29 | 西安电子科技大学 | Multi-beam feedback source auto switching gear of large-scale flexible radio telescope antenna |
| CN105531872A (en) * | 2013-06-17 | 2016-04-27 | 祖迪雅克数据系统公司 | Source for parabolic antenna |
| CN103594798A (en) * | 2013-11-20 | 2014-02-19 | 中国船舶重工集团公司第七二四研究所 | Switching locating device for double feed sources |
Non-Patent Citations (1)
| Title |
|---|
| 李燕: "40 m天线换馈机构结构设计及有限元分析", 《电子机械工程》 * |
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Application publication date: 20180109 |