CN108401574B - A kind of antenna direction regulating mechanism - Google Patents
A kind of antenna direction regulating mechanism Download PDFInfo
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- CN108401574B CN108401574B CN200910122358.0A CN200910122358A CN108401574B CN 108401574 B CN108401574 B CN 108401574B CN 200910122358 A CN200910122358 A CN 200910122358A CN 108401574 B CN108401574 B CN 108401574B
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Abstract
The invention discloses a kind of antenna direction regulating mechanisms, the adjustment mechanism includes three rotating units, each two rotating unit connects to form a three axis directing mechanisms by angle holder and circle holder, three shafts intersect at the focus of reflector, wherein second rotating unit generates the azimuth needed around first rotating unit rotation, third rotating unit generates the angle of site around second rotating unit rotation, third rotating unit can adjust the polarization direction of antenna, can realize the adjustment of antenna beam by controlling the two corners in this way.The mechanism can be placed in the position far from focus, antenna primary wave beam will not be blocked and feed battle array and waveguide feeder can be avoided, simplify feed system so that it is motionless that feed is fixed on focus, reflector is rotated around focus, and reflector is allowed to rotate the electrical property without influencing antenna in wide range；For offset-fed antenna, this advantage is more obvious.
Description
Technical field
The present invention relates to a kind of antenna direction regulating mechanism, more particularly to one kind can rotate around focus and will not
Block the triaxial antennas directing mechanism of antenna primary wave beam.
Background technology
Change antenna beam to be directed toward generally there are two types of mode, a kind of mode is to change antenna to be integrally directed toward；It is another
Kind of mode is that feed is fixed on that focus is motionless, and reflector is rotated around focus.Change antenna entirety beam position
Mode slewing area is big, but requires radiofrequency signal by microwave rotary joint and more complex feeder line, so both
Feeder loss and standing-wave ratio are increased, and feed system is complicated.For the antenna of certain satellites,
Due to the feed battle array that it is formed with multiple feeds, thus need multiple rotary joints so that electrical feed-throughs are too
Mostly it cannot achieve in structure.The mode that reflector is rotated around focus makes feed since feed is fixed
Relatively easily, and reflector is allowed to rotate the electrical property without influencing antenna in wide range.The side of realization
Formula is the rotating manner of orthogonal double axle structure, and the intersection point of two orthogonal pivot axes is the focus of main reflector, it is desirable that
Feed wave beam passes through focus after subreflector reflects.The antenna that this frame mode feeds focus is can
Capable, but the rotating mechanism pair to the Greggory antenna of this double offset of Nulling antenna because being placed near focal point
Blocking for antenna primary wave beam and it is infeasible.Needing development one kind that can be rotated around focus thus will not block again
The direction adjusting apparatus of antenna primary wave beam.Mechanical type around common point rotation has Bevel Gear Transmission, such as schemes
Shown in 1, the gear drive for the intersection between centers that it is mainly made of bevel-gear sett, for transmitting two concurrent aceses
Movement and power, shaft angle i.e. two crossed axis angle ∑s can determine as needed.Two shafts of bevel gear are coplanar and phase
It meets at a bit, transmission can regard the cone phase interaction pure rolling of two cone concurrents as.
Invention content
The technology of the present invention solves the problems, such as：Overcome the deficiencies of the prior art and provide a kind of antenna direction adjustment
Mechanism, mechanism rotation is flexible, slewing area is big, and can be rotated around focus will not block antenna primary wave again
Beam.
Technical solution of the invention is：A kind of antenna direction regulating mechanism, including can appoint around own axes
Meaning is rotated by 360 ° and identical first rotating unit of structure, the second rotating unit and third rotating unit, has
The first angle holder, circle holder, the second angle holder with 2 degree of angles of 180- θ of 1 degree of angle of 180- θ
And adapter, wherein the rotation axis OZ1 of the first rotating unit is kept fixed, the first rotating unit passes through first
Angle holder is connect with the second rotating unit, and the rotation of the second rotating unit, circle are driven for the first rotating unit
Holder and the second rotating unit are coaxially connected together, and circle holder is rotated single by the second angle holder and third
Member connection drives the rotation of third rotating unit, third rotating unit to pass through adapter for the second rotating unit
It is connect with reflector, antenna is directed toward the rotation axis OZ1 of the first rotating unit, the during adjustment structure motion
The rotation axis OZ2 of two rotating units and the rotation axis OZ3 of third rotating unit intersect at reflector always
Focus O.
First rotating unit that can be arbitrarily rotated by 360 ° around own axes or the second rotating unit,
Or the structure of third rotating unit include motor bearings, rotary transformer, motor, rotary transformer lasso,
End cap, rotating mechanism shell, bearing ring, retarder end cap, output steel wheel, input steel wheel, axle sleeve,
Wave producer, retarder bearing and flexbile gear, output steel wheel, input steel wheel, wave producer, reducer shaft
It holds and collectively constitutes harmonic speed reducer with flexbile gear, wherein output steel wheel is connected with retarder end cap, input steel wheel
It is connected with the pedestal of motor, flexbile gear is mounted on output steel wheel and inputs the inner ring of steel wheel, and retarder bearing is set
It sets between flexbile gear and wave producer, wave producer is connected with axle sleeve, and axle sleeve connects the output shaft of motor,
The other end of motor installs end cap, and rotary transformer and motor bearings are installed on the shell of motor, and rotation becomes
Between depressor is fixed on two pairs of motor bearings by rotary transformer lasso, in rotary transformer and motor bearings
Except rotating mechanism shell is installed, retarder end cap and lasso are mounted on the both ends of rotating mechanism shell.
Compared with the prior art, the present invention has the advantages of：The present invention devises three rotating units, and each two turns
Moving cell connects to form a three axis directing mechanisms by angle holder, and three shafts intersect at reflector
Focus, wherein second rotating unit generates the azimuth needed around first rotating unit rotation, the
Three rotating units generate the angle of site around second rotating unit rotation, and third rotating unit can adjust day
The polarization direction of line can realize the adjustment of antenna beam by controlling the two corners in this way.The mechanism
The position far from focus is can be placed in, antenna primary wave beam will not be blocked and feed battle array and waveguide feedback can be avoided
Line simplifies feed system so that it is motionless that feed is fixed on focus, and reflector is rotated around focus, and is allowed
Reflector rotates the electrical property without influencing antenna in wide range；For offset-fed antenna, this is excellent
Gesture is more obvious.
Description of the drawings
Fig. 1 is oblique angle Bevel Gear Transmission schematic diagram；
Fig. 2 is new antenna direction regulating mechanism principle schematic of the present invention；
Fig. 3 is the side view of rotating unit of the present invention；
Fig. 4 is the A-A of Fig. 3 to sectional structure chart；
Fig. 5 is the angle support schematic diagram of present invention connection the first rotating unit and the second rotating unit；
Fig. 6 is present invention circle supporting structure schematic diagram；
Fig. 7 is the angle support schematic diagram of present invention connection circle holder and third rotating unit；
Fig. 8 is adapter structural schematic diagram of the present invention；
Fig. 9 is inventive antenna direction regulating mechanism schematic three dimensional views.
Specific implementation mode
The present invention will be further described in the following with reference to the drawings and specific embodiments.
To make the shaft of antenna direction regulating mechanism intersect at the focus of reflector always, feed is fixed on focus
Motionless, reflector is rotated around focus, and mechanical motion principle of the invention is as shown in Fig. 2, new antenna refers to
It is made of to adjustment mechanism three rotating units that shaft intersects at a point, OZ1, OZ2, OZ3 points in figure
The rotation axis of other three rotating units of representative organization, wherein the rotation axis OZ1 of first rotating unit is fixed,
The rotation axis OZ3 of third rotating unit, second rotating unit rotation axis OZ2 turn with first
The rotation axis OZ1 rotations of moving cell, and the rotation axis OZ3 of third rotating unit can turn with second
The rotation axis OZ3 of the rotation axis OZ2 rotations of moving cell, third rotating unit is that antenna is directed toward.The
The angle theta 1 of the rotation axis OZ1 of one rotating unit and two between centers of rotation axis OZ2 of second rotating unit
For fixed value, the rotation axis OZ3 two of the rotation axis OZ2 and third rotating unit of second rotating unit
The angle theta 2 of between centers is fixed value, the rotation axis OZ1 of first rotating unit, third rotating unit
Angle E between rotation axis OZ3 can be changed by the rotation of the rotation axis OZ2 of second rotating unit.
Wherein second rotating unit generates the azimuth needed, third rotation around first rotating unit rotation
Unit generates the angle of site around second rotating unit rotation, and third rotating unit can adjust the polarization of antenna
Direction, in order to avoid knock antenna other structures part.Rotation axis OZ1 in this way by controlling first rotating unit
The rotation axis of rotational angle theta 1 and second rotating unit between the rotation axis OZ2 of second rotating unit
Rotational angle theta 2 between OZ2 and the rotation axis OZ3 of third rotating unit, so that it may so that antenna is directed toward half
Arbitrarily change in the conical space of taper angle theta 1+ θ 2, while the direction of antenna passes through focus O always again.
The structure all same of three rotating units.The specific internal structure of each rotating unit as shown in figure 3,
Each rotating unit includes motor bearings 1, rotary transformer 2, motor 3, rotary transformer lasso 4, end
Lid 5, rotating mechanism shell 6, bearing ring 7, retarder end cap 8, output steel wheel 9, input steel wheel 10,
Axle sleeve 11, wave producer 12, retarder bearing 13 and flexbile gear 14, by rotary transformer 2 and motor
Position of the bearing 1 between the shell and rotating mechanism shell 6 of stepper motor 3, rotary transformer 2 are logical
It crosses rotary transformer lasso 4 to fix between two pairs of motor bearings 1, end cap 5, electricity are installed in one end of motor 3
The output shaft of machine 3 is bonded connection with axle sleeve 11, output steel wheel 9, input steel wheel 10, wave producer 12,
Retarder bearing 13, flexbile gear 14 collectively constitute harmonic speed reducer, wherein output steel wheel 9 and retarder end cap
8 are connected by screw, and input steel wheel 10 and the pedestal of motor 3 is connected by screw, retarder bearing 13
It is arranged between flexbile gear 14 and wave producer 12, wave producer 12 is bolted with axle sleeve 11, soft
Wheel 14 is mounted on output steel wheel 9 and inputs the inner rings of steel wheel 10, retarder end cap 8 and end cap 5 respectively with
Rotating mechanism shell 6 is bolted, and attachment lug is designed on rotating mechanism shell 6.Rotating unit
Thickness be exactly the length of motor 3 plus output steel wheel 9, input steel wheel in end cap 5 and harmonic speed reducer
10 length.This frame mode makes rotating unit thickness greatly reduce, only 70mm, radial dimension
About 110mm or so.Rotating mechanism working method is：The end cap 5 of first rotating unit is fixed, electricity
After machine 3 powers up, the output shaft of motor 3 drives the wave producer 12 in axle sleeve 11 and harmonic reduction device assembly
Rotation, wave producer 12 drive flexbile gear 14 to rotate, and flexbile gear 14 drives output firm gear 9 to rotate, defeated at this time
It is fixed with 3 shell of motor to enter firm gear 10, output firm gear 9 drives 6 turns of retarder end cap 8 and shell
It is dynamic.The shell of second and third rotating unit is consolidated by the first angle holder 15 and the second angle holder 17 respectively
Fixed, after motor 3 powers up, output firm gear 9 is fixed, and the output shaft of motor 3 drives axle sleeve 11 and humorous
The wave producer 12 of wave reducer assemblies rotates, and wave producer 12 drives flexbile gear 14 to rotate, 14 band of flexbile gear
Dynamic input firm gear 10 rotates, and input firm gear 10 drives the rotation of 3 shell of motor, and then end cap 5 is driven to rotate.
For three rotating units are connected into a directing mechanism with motion principle as shown in Figure 2, first
The end cap 5 of first rotating unit is fixed, then with tool as shown in Figure 5, there are two the angles of semicircle groove
Holder 15 gets up the cage connection of the first rotating unit and the second rotating unit, the end of the second rotating unit
Lid 5 is attached with round holder 16 as shown in FIG. 6, and circle holder 16 is connected to by a connection end cap
On the end cap 5 of second rotating unit, outer diameter auricle with angle holder 17 shown in Fig. 7 for being connected
To facilitate the connection with third rotating unit, then again by there are two circle holder 16 and tools shown in Fig. 7
One semicircle groove of the angle holder 17 of semicircle groove is connected, another semicircle groove is rotated with third
The shell of unit is connected, and the end cap 5 of third rotating unit is connected with adapter 18 as shown in Figure 8, turns
18 circular one end of fitting connect third rotating unit end cap 5, other end connect reflector, using turn
Three rotating units are connected by fitting 18 with the reflector of antenna, to form three-dimensional as shown in Figure 9
Structure, the support Design between three rotating units ensure that the rotation axis OZ1 and second of first rotating unit
The rotation axis OZ2 of rotational angle theta 1 and second rotating unit between the rotation axis OZ2 of a rotating unit
Rotational angle theta 2 between the rotation axis OZ3 of third rotating unit immobilizes, and each rotating unit
It can be arbitrarily rotated by 360 ° around the shaft of oneself.
Specifically the course of work is：The end cap 5 of first rotating unit is fixed, and shell 6 rotates, the first angle
The both sides of holder 15 with the first rotating unit and the second rotating unit vertical connection, are used to ensure first respectively
Rotating unit and the second rotating unit can rotate freely 360 ° rotating around respective shaft OZ1 and OZ2, and
Angle between the rotation axis OZ1 of first rotating unit and the rotation axis OZ2 of the second rotating unit is fixed as
The shell 6 of θ 1, the second rotating unit are relatively fixed, and end cap 5 rotates, and the circle rotation of holder 16 and second is single
The end cap 5 of member links together, and 17 both sides of the second angle holder are single with circle holder 16 and third rotation respectively
First vertical connection, for ensure round holder 16 and third rotating unit can rotating around the shaft OZ2 of oneself and
OZ3 rotates freely 360 °, and the second rotating unit rotation axis OZ2 and third rotating unit rotation axis OZ3
Between angle be fixed as θ 2, the shell 6 of third rotating unit is relatively fixed, end cap 5 rotate, adapter
The end cap 5 and reflector of 18 connection third rotating units, rotating manner are that the first rotating unit drives second turn
Moving cell and the rotation of third rotating unit, the second rotating unit drive the rotation of third rotating unit, the first rotation
Unit, the second rotating unit and third rotating unit are again rotating around respective shaft OZ1, OZ2 and OZ3
Rotation, the rotation axis OZ1 of the first rotating unit, the rotation axis OZ2 of the second rotating unit and the in movement
The rotation axis OZ3 of three rotating units intersects at the focus O of reflector always.
As shown in figure 5, the angle of angle holder 15 is spent equal to (180- θ 1), wherein 8 ° of 0 ° of 1 ＞ of ＞ θ.
As shown in fig. 7, the angle of angle holder 17 is spent equal to (180- θ 2), 8 ° of 0 ° of 2 ＞ of ＞ θ.As θ 1=θ 2=4 °
When antenna direction regulating mechanism the direction range of antenna can be made to reach global range.
Wherein angle holder 15,17 and adapter 18 select pre-stretching aluminium sheet, circle 16 aluminium of holder
Stick is made.
The non-detailed description of the present invention is known to the skilled person technology.
Claims (3)
1. a kind of antenna direction regulating mechanism, it is characterised in that：Including can be arbitrarily rotated by 360 ° around own axes
And identical first rotating unit of structure, the second rotating unit and third rotating unit, have 1 degree of 180- θ
The first angle holder (15), circle holder (16), the second angle with 2 degree of angles of 180- θ of angle
Holder (17) and adapter (18), wherein the rotation axis of the first rotating unit is kept fixed, the first rotation
Unit is connect by the first angle holder (15) with the second rotating unit, and the is driven for the first rotating unit
Two rotating units and the rotation of third rotating unit, circle holder (16) and the second rotating unit are coaxially connected one
It rises, circle holder (16) is connect by the second angle holder (17) with third rotating unit, is used for second turn
Moving cell drives the rotation of third rotating unit, third rotating unit to be connect with reflector by adapter (18),
Antenna is directed toward rotation axis, the rotation axis of the second rotating unit of the first rotating unit during adjustment structure motion
Intersect at the focus O of reflector always with the rotation axis of third rotating unit, wherein 8 ° of 0 ° of 1 ＞ of ＞ θ,
8 ° of 0 ° of 2 ＞ of ＞ θ.
2. a kind of antenna direction regulating mechanism according to claim 1, it is characterised in that：Described
The first rotating unit or the second rotating unit or the third rotation that can be arbitrarily rotated by 360 ° around own axes are single
Member by motor bearings (1), rotary transformer (2), motor (3), rotary transformer lasso (4),
End cap (5), rotating mechanism shell (6), bearing ring (7), retarder end cap (8), output steel
Take turns (9), input steel wheel (10), axle sleeve (11), wave producer (12), retarder bearing (13)
And flexbile gear (14) composition, output steel wheel (9), input steel wheel (10), wave producer (12),
Retarder bearing (13) and flexbile gear (14) collectively constitute harmonic speed reducer, wherein output steel wheel (9) with
Retarder end cap (8) is connected, and input steel wheel (10) is connected with the pedestal of motor (3), flexbile gear (14)
Mounted on the inner ring of output steel wheel (9) and input steel wheel (10), retarder bearing (13) is arranged soft
It takes turns between (14) and wave producer (12), wave producer (12) is connected with axle sleeve (11), axle sleeve
(11) output shaft of connection motor (3), the other end installation end cap (5) of motor (3), in motor (3)
Shell on installation rotary transformer (2) and motor bearings (1), rotary transformer (2) pass through rotation
Transformer lasso (4) is fixed between two pairs of motor bearings (1), in rotary transformer (2) and motor
Rotating mechanism shell (6), retarder end cap (8) and bearing ring (7) peace are installed except bearing (1)
Both ends mounted in rotating mechanism shell (6).
3. a kind of antenna direction regulating mechanism according to claim 1, it is characterised in that：Described
θ 1=θ 2=4 °.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200910122358.0A CN108401574B (en) | 2009-08-31 | 2009-08-31 | A kind of antenna direction regulating mechanism |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200910122358.0A CN108401574B (en) | 2009-08-31 | 2009-08-31 | A kind of antenna direction regulating mechanism |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108401574B true CN108401574B (en) | 2013-04-17 |
Family
ID=63078641
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN200910122358.0A Active CN108401574B (en) | 2009-08-31 | 2009-08-31 | A kind of antenna direction regulating mechanism |
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| Country | Link |
|---|---|
| CN (1) | CN108401574B (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106658762A (en) * | 2016-12-22 | 2017-05-10 | 众至诚信息技术股份有限公司 | Mobile communication base station and installation method thereof |
| CN107785645A (en) * | 2017-09-18 | 2018-03-09 | 西安空间无线电技术研究所 | A kind of offset-feed type framework reflector expansion and direction regulating mechanism |
| CN107799875A (en) * | 2017-09-18 | 2018-03-13 | 西安空间无线电技术研究所 | A kind of axle directing mechanism precision compensation method of satellite antenna three |
| CN111613897A (en) * | 2020-06-22 | 2020-09-01 | 上海宇航系统工程研究所 | Central hole 360 degree rotating antenna pointing mechanism |
-
2009
- 2009-08-31 CN CN200910122358.0A patent/CN108401574B/en active Active
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106658762A (en) * | 2016-12-22 | 2017-05-10 | 众至诚信息技术股份有限公司 | Mobile communication base station and installation method thereof |
| CN106658762B (en) * | 2016-12-22 | 2020-02-07 | 众至诚信息技术股份有限公司 | Mobile communication base station and installation method thereof |
| CN107785645A (en) * | 2017-09-18 | 2018-03-09 | 西安空间无线电技术研究所 | A kind of offset-feed type framework reflector expansion and direction regulating mechanism |
| CN107799875A (en) * | 2017-09-18 | 2018-03-13 | 西安空间无线电技术研究所 | A kind of axle directing mechanism precision compensation method of satellite antenna three |
| CN107785645B (en) * | 2017-09-18 | 2019-09-06 | 西安空间无线电技术研究所 | A kind of expansion of offset-feed type framework reflector and direction regulating mechanism |
| CN107799875B (en) * | 2017-09-18 | 2020-07-14 | 西安空间无线电技术研究所 | Precision compensation method for three-axis pointing mechanism of satellite-borne antenna |
| CN111613897A (en) * | 2020-06-22 | 2020-09-01 | 上海宇航系统工程研究所 | Central hole 360 degree rotating antenna pointing mechanism |
| CN111613897B (en) * | 2020-06-22 | 2021-07-06 | 上海宇航系统工程研究所 | Central hole 360 degree rotating antenna pointing mechanism |
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