CN110233354A - The middle-size and small-size antenna structure system of boat-carrying telemetering multiband beam waveguide - Google Patents
The middle-size and small-size antenna structure system of boat-carrying telemetering multiband beam waveguide Download PDFInfo
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- CN110233354A CN110233354A CN201910416103.9A CN201910416103A CN110233354A CN 110233354 A CN110233354 A CN 110233354A CN 201910416103 A CN201910416103 A CN 201910416103A CN 110233354 A CN110233354 A CN 110233354A
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q1/00—Details of, or arrangements associated with, antennas
- H01Q1/12—Supports; Mounting means
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q1/00—Details of, or arrangements associated with, antennas
- H01Q1/50—Structural association of antennas with earthing switches, lead-in devices or lightning protectors
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q19/00—Combinations of primary active antenna elements and units with secondary devices, e.g. with quasi-optical devices, for giving the antenna a desired directional characteristic
- H01Q19/10—Combinations of primary active antenna elements and units with secondary devices, e.g. with quasi-optical devices, for giving the antenna a desired directional characteristic using reflecting surfaces
- H01Q19/18—Combinations of primary active antenna elements and units with secondary devices, e.g. with quasi-optical devices, for giving the antenna a desired directional characteristic using reflecting surfaces having two or more spaced reflecting surfaces
- H01Q19/19—Combinations of primary active antenna elements and units with secondary devices, e.g. with quasi-optical devices, for giving the antenna a desired directional characteristic using reflecting surfaces having two or more spaced reflecting surfaces comprising one main concave reflecting surface associated with an auxiliary reflecting surface
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q3/00—Arrangements for changing or varying the orientation or the shape of the directional pattern of the waves radiated from an antenna or antenna system
- H01Q3/02—Arrangements for changing or varying the orientation or the shape of the directional pattern of the waves radiated from an antenna or antenna system using mechanical movement of antenna or antenna system as a whole
- H01Q3/08—Arrangements for changing or varying the orientation or the shape of the directional pattern of the waves radiated from an antenna or antenna system using mechanical movement of antenna or antenna system as a whole for varying two co-ordinates of the orientation
Abstract
The present invention proposes a kind of middle-size and small-size antenna structure system of boat-carrying telemetering multiband beam waveguide, including antenna reflector, antenna pedestal, changeover portion and beam waveguide combination；Antenna reflector is that steel radiates beam type amendment type paraboloid of revolution structure, and Reflector Panel uses the high-precision panel of aluminum Independent adjustable, and panel precision meets electrical specifications requirement, and panel construction rigidity meets mechanical deformation requirement and has redundancy；Antenna pedestal uses azimuth pitch type structure, including pitching combination, orientation combination, shaft angle detection device；Changeover portion connection orientation pedestal and the feed of hull interior install cabin；Beam waveguide combination includes feed and multiple groups mirror structure, realizes X/Ka/S frequency range observing and controlling using beam waveguide feed mode.Beam waveguide antenna system is applied to boat-carrying mobile device by the present invention, under the synergy that wind load and ship shake load, it can be ensured that each reflector position posture is correct, and malformation, three proofings etc. meet performance requirement.
Description
Technical field
The present invention is applied to ocean remote measuring and controlling and technical search field, specially a kind of boat-carrying telemetering multiband wave beam wave
Lead middle-size and small-size antenna structure system.
Background technique
In order to meet national defense construction demand, it is badly in need of the ocean TT&C system of a set of High-precision high-frequency rate multiband, and wherein
Antenna structure system is one of the key equipment of boat-carrying X/Ka/S frequency range TT&C system, it plays the performance of entire TT&C system
Decisive role.
In the present state-of-the technology, antenna becomes first choice using beam waveguide feed form.And it uses both at home and abroad at present
The antenna of beam waveguide feed form is all the large-scale antenna system applied to continental rise radio astronomy observation, and uses beam waveguide
The middle-size and small-size antenna system of ocean boat-carrying or a blank of feed form.The present invention is directed to this blank and proposes.
Summary of the invention
The present invention is directed to the blank of the middle-size and small-size beam waveguide feed formula antenna system of ocean boat-carrying, proposes a kind of boat-carrying telemetering
Beam waveguide antenna system is applied to boat-carrying mobile device, in wind load by the middle-size and small-size antenna structure system of multiband beam waveguide
Lotus and ship shake under the synergy of load, it can be ensured that each reflector position posture is correct, and malformation, three proofings etc. meet
Performance requirement.
The technical solution of the present invention is as follows:
The middle-size and small-size beam waveguide feed formula antenna system of a kind of ocean boat-carrying, it is characterised in that: including antenna-reflected
Body, antenna pedestal, changeover portion and beam waveguide combination；
The antenna reflector is that steel radiates beam type amendment type paraboloid of revolution structure, and Reflector Panel is independent using aluminum
Adjustable high-precision panel, panel precision meet electrical specifications requirement, and panel construction rigidity meets mechanical deformation requirement and has superfluous
It is remaining；
The antenna pedestal uses azimuth pitch type structure, including pitching combination, orientation combination, shaft angle detection device；
Pitching combination using double support arm structures, pitching cabinet therein by two floating bearings respectively with left and right branch
The centre of gyration line of arm connection, two floating bearings forms pitch axis, and double support arm lower end surfaces combine connection with orientation；
The orientation combination uses turntable type structure, including azimuth rotating platform, azimuth base, orientation floating bearing, orientation to pass
Motivation structure and orientation cable winder；
The azimuth rotating platform is power transmission transition piece, and plane is pitching or so support arm and beam waveguide combination on azimuth rotating platform
In beam waveguide bracket mounting plane is provided, azimuth rotating platform lower plane is fastened on orientation floating bearing moving-coil, center
Installation position axis；
The azimuth base top installation position floating bearing, determines ring with orientation floating bearing and is fixedly connected, azimuth base
Lower part is fixedly connected with changeover portion；Installation and signal transmission space are provided inside azimuth base for beam waveguide combination；
The rotational angle of azimuth axis of antenna and pitch axis is transformed into electric signal and passed to outer by the shaft angle detection device
Portion's servo control unit；
The changeover portion connection orientation pedestal and the feed of hull interior install cabin；
The beam waveguide combination includes feed and multiple groups mirror structure, realizes X/ using beam waveguide feed mode
Ka/S frequency range observing and controlling；Every group of reflecting mirror includes band backing strip panel and adjustment mechanism, and adjustment mechanism is for adjusting band backing strip panel angle
Degree, it is ensured that reflector position precision and reflection precision meet electric requirement；Every group of transmitting mirror is installed in seal protection cylinder.
Further preferred embodiment, a kind of middle-size and small-size beam waveguide feed formula antenna system of ocean boat-carrying, feature
Be: the antenna reflector uses combined structure form, including antenna interarea, antenna back frame, minor face and support adjustment machine
Structure；
The antenna interarea is divided into three circles: inner ring, centre circle and outer ring；Three circle panels are by several pieces of monolithic panel splicing groups
At；The monolithic panel uses rigid panel structural shape, is riveted by stretching covering and longitudinal rib, circumferential muscle；
The antenna back frame includes center of antenna body and radiation beam；The center of antenna body is that regular octahedron shape welds steel knot
Structure is arranged in the antenna interarea center back position；There is the intersecting parallels frame for being disposed with shear web in regular octahedron,
An enclosed shape cell is formed among intersecting parallels frame, for providing feed channel；The radiation beam is arranged in the antenna master
Face back is located at around center of antenna body, is used to support the antenna interarea；
The minor face uses four strut cross support forms, is equipped with adjustment mechanism in support bar top, can be to minor face
Independent adjustment is carried out on three displacement freedoms, to meet the requirement of antenna electrical specifications commissioning.
Further preferred embodiment, a kind of middle-size and small-size beam waveguide feed formula antenna system of ocean boat-carrying, feature
Be: monolithic panel member material uses LY12, and the surface accuracy of monolithic panel reaches σ≤0.1r.m.s.
Further preferred embodiment, a kind of middle-size and small-size beam waveguide feed formula antenna system of ocean boat-carrying, feature
Be: the minor face is formed using rotary pressing processing, is finished after molding to the working surface of minor face, is made the worksheet of minor face
Face precision σ≤0.1r.m.s.
Further preferred embodiment, a kind of middle-size and small-size beam waveguide feed formula antenna system of ocean boat-carrying, feature
Be: the minor face support rod uses the welded unit of rectangular section, and is mounted on wherein at least one support rod for personnel
Upper and lower pedal steel pipe, is easily installed adjustment mechanism.
Further preferred embodiment, a kind of middle-size and small-size beam waveguide feed formula antenna system of ocean boat-carrying, feature
Be: the pitching combination includes pitching cabinet, pitching support arm, pitching floating bearing, pitching rotation change, pitching transmission case, pitching
Buffer, pitching limiter, pitching lock, pitching ballast box；
The pitching cabinet is the box-shaped structural member of steel plate welding, and left and right end face passes through a pair of of pitching floating bearing and left and right
Pitching support arm is separately connected；And it is also provided with through-hole in the middle part of pitching cabinet or so end face, the through-hole hole as beam waveguide signal；It bows
Facing upward cabinet upper surface is the joint face with antenna reflector, and lower end surface is the joint face with pitching ballast box, pitching box house
Bottom surface is the mounting surface of beam waveguide reflecting mirror；
The pitching support arm divides the left support arm of pitching and the right support arm of pitching, passes through coaxial pitching floating bearing and pitching respectively
The connection of cabinet or so end face；
The pitching transmission case inputs external impetus, so that pitching cabinet is rotated around pitching floating bearing, and pass through
Pitching rotation, which becomes, carries out signal transmission；
The pitching buffer and the pitching limiter play installation protective effect to the pitching movement of pitching cabinet；
The pitching lock is for locking antenna reflector posture.
Further preferred embodiment, a kind of middle-size and small-size beam waveguide feed formula antenna system of ocean boat-carrying, feature
Be: the fixed part that pitching transmission case, pitching limiter, pitching lock and pitching rotation become is installed in the left branch of pitching
Arm；It is also fixedly installed with telescope combination on the outside of the left support arm of pitching, and is provided on the left support arm of pitching for telescope combination and wave
The through-hole that signal passes through is realized between beam waveguide combination；Pitching buffer is mounted on the inside of the left support arm of pitching and the right support arm of pitching；
The right support arm of pitching is provided with the through-hole passed through for beam waveguide signal up and down.
Further preferred embodiment, a kind of middle-size and small-size beam waveguide feed formula antenna system of ocean boat-carrying, feature
Be: reflecting mirror is mounted in seal protection cylinder after spray zinc, spraying heavy antisepsis priming paint, finishing coat, timing in seal protection cylinder
Fill dry air.
Beneficial effect
The middle-size and small-size antenna structure system of boat-carrying telemetering multiband beam waveguide provided by the invention, is mainly used for 12 meters of boat-carrying
Previous ground fixed equipment is converted to ocean mobile device, and needle by beam waveguide X/Ka/S multiband aerial structural system
Greatly is extended by systematic difference field and is made using special structure design and safeguard procedures for pelagic environment requirement
Use environment.Good structure design and safeguard procedures ensure equipment reliably working under the marine environment of hot humid salt fog.
Additional aspect and advantage of the invention will be set forth in part in the description, and will partially become from the following description
Obviously, or practice through the invention is recognized.
Detailed description of the invention
Above-mentioned and/or additional aspect of the invention and advantage will become from the description of the embodiment in conjunction with the following figures
Obviously and it is readily appreciated that, in which:
Fig. 1: antenna structure system composition and layout；
Fig. 2: antenna structure system right view；
Fig. 3: antenna structure system left view；
Fig. 4: antenna reflector structure；
Fig. 5: antenna pedestal composition and topology layout figure；
Fig. 6: pitching combination assumption diagram；
Fig. 7: the left support arm structure figure of pitching；
Fig. 8: the right support arm structure figure of pitching；
Fig. 9: pitching floating bearing structure chart；
Figure 10: pitching box structure figure；
Figure 11: orientation combination assumption diagram；
Figure 12: azimuth rotating platform structure chart；
Figure 13: azimuth base structure chart；
Figure 14: bearing structure chart；
Figure 15: orientation cable winder；
Figure 16: beam waveguide combination assumption diagram；
Figure 17: subreflector stress condition；
Figure 18: reflecting mirror M1 stress condition；
Figure 19: reflecting mirror M2 stress condition；
Figure 20: reflecting mirror M3 stress condition；
Figure 21: reflecting mirror M4 stress condition；
Figure 22: ship shakes related mechanics calculation diagram；
Figure 23: all-sealed structure scheme 1；
Figure 24: all-sealed structure scheme 2.
Specific embodiment
The embodiment of the present invention is described below in detail, the embodiment is exemplary, it is intended to it is used to explain the present invention, and
It is not considered as limiting the invention.
The present embodiment is the antenna structure system in 12 metric wave beam waveguide antenna X/Ka/S frequency range TT&C system of boat-carrying, antenna
The key technical indexes of system are as follows:
Antenna Motion Parameter is shown in Table 1:
1 Antenna Motion Parameter table of table
Running environment requirement
Temperature: storage temperature: -45 DEG C~+55 DEG C；
Operating temperature (outdoor): -30 DEG C~+55 DEG C；
Operating temperature (interior) :+10 DEG C~+35 DEG C.
Relative humidity: 95% (25 DEG C).
Wind load:
Work wind speed: strong gale (20.9m/s)；
Save wind speed from damage: typhoon (32.6m/s).
It drenches with rain: meeting army's mark GJB899-90 requirement.
Equipment has the measures such as lightning protection, moisture-proof, mould proof, salt spray proof, shockproof, rain-proof.
Ship shakes related data and is shown in Table 2
2 ship of table shakes related data
| Project | Angle | Angular speed (°/s) | Angular acceleration (°/s2) |
| Rolling | ±5° | 1.8 | 0.8 |
| Pitching | ±2° | 0.8 | 0.6 |
| Yawing | ±3° | 2 | 1.3 |
Beam waveguide geometrical relationship schematic diagram is shown in Figure 16, and beam waveguide the key technical indexes is
Mirror surface installation accuracy: ± 1mm.
Mirror surface shafting precision: ± 6 '.
Specular surface precision: 0.15mm.
M1, M4 structure are identical, and installation direction is opposite；
M2, M3 structure are identical, and installation direction is opposite.
There are the installation sites and interface of test feed for the focal point of mirror surface.
The key point of the present embodiment is beam waveguide antenna system being applied to boat-carrying mobile device, in wind load and ship
It shakes under the synergy of load, it is ensured that each reflector position posture is correct, and malformation, three proofings etc. meet electrical performance demands.
The antenna system includes antenna reflector, antenna pedestal, changeover portion and beam waveguide combination etc.；Antenna structure system group
At and layout as shown in Figure 1, the left and right view of antenna structure system is as shown in Figure 2 and Figure 3.
Antenna reflector is that steel radiates beam type amendment type paraboloid of revolution structure, and Reflector Panel uses aluminum Independent adjustable
High-precision panel, panel precision meets electrical specifications requirement, and panel construction rigidity meets mechanical deformation requirement and has redundancy.
Antenna reflector uses combined structure form, including antenna interarea, antenna back frame, minor face and support adjustment mechanisms
Deng；Antenna reflector structure total arrangement is as shown in Figure 4.
The antenna interarea is divided into three circles: inner ring, centre circle and outer ring；16 pieces of inner ring panel, centre circle and outer ring are respectively 32
Block, totally 80 pieces of monolith surface board groups are at primary reflection surface.
Monolithic panel uses rigid panel structural shape, is riveted by stretching covering and longitudinal rib, circumferential muscle；Monolith surface
The material of board member is all made of LY12.Monolithic panel rivets on dedicated riveting tire, the surface accuracy of monolithic panel should reach σ≤
0.1(r.m.s).The detection of monolithic panel uses three-coordinates measuring machine or other monolith surface board detecting methods.Primary reflection surface general assembly
Detection still uses theodolite method, and test point totally 320, point position puts corresponding, total adjustment required precision σ≤0.20 with adjustment
(r.m.s)。
Antenna back frame includes center of antenna body and radiation beam；The center of antenna body is Φ 3600mm to be a circumscribed circle
Regular octahedron shape welded steel structure, be arranged in the antenna interarea center back position；There is one to be disposed in regular octahedron
The intersecting parallels frame of shear web, intersecting parallels frame centre forms the enclosed shape cell of an about Φ 1360mm, for providing feedback
Electric channel；Radiation beam is arranged in antenna interarea back, is located at around center of antenna body, is used to support the antenna interarea；
In this antenna reflector structure, 16 radiation beams are used altogether.
Minor face is formed using rotary pressing processing, and minor face bore is Φ 1500mm, carries out essence to the working surface of minor face after molding
Processing, makes working surface precision σ≤0.1r.m.s of minor face.Minor face uses four strut cross support forms, in support bar top
Adjustment mechanism is installed, independent adjustment can be carried out on three displacement freedoms to minor face, to meet antenna electrical specifications tune
It surveys and requires.The minor face support rod uses the welded unit of rectangular section, and is mounted on wherein at least one support rod for people
Pedal steel pipe above and below member, is easily installed adjustment mechanism.
The antenna pedestal uses azimuth pitch type structure, including pitching combination, orientation combination, shaft angle detection device.Antenna
Holder structure is as shown in Figure 5.
Pitching combination using double support arm structures, pitching cabinet therein by two huge revolving bearings respectively with a left side
Right support arm connection, the centre of gyration line of two floating bearings form pitch axis, and double support arm lower end surfaces combine connection with orientation.
Pitching combination is slow including pitching cabinet, pitching support arm, pitching floating bearing, pitching rotation change, pitching transmission case, pitching
Device, pitching limiter, pitching lock, pitching ballast box are rushed, as shown in Figure 6.
The pitching cabinet is the box-shaped structural member of steel plate welding, and left and right end face passes through a pair of of pitching floating bearing and left and right
Pitching support arm is separately connected；And it is also provided with through-hole in the middle part of pitching cabinet or so end face, the through-hole hole as beam waveguide signal；It bows
Facing upward cabinet upper surface is the joint face with antenna reflector, and lower end surface is the joint face with pitching ballast box, pitching box house
Bottom surface is the mounting surface of beam waveguide reflecting mirror；Pitching body structure is as shown in Figure 10.
The pitching support arm divides the left support arm of pitching and the right support arm of pitching, plays a part of supporting antenna pitching motion parts,
Its stiffness and strength is most important for the concentricity and shafting precision of left and right pitch axis, and left and right pitching support arm is steel plate welding
Made of box structure part, after combination inside connect respectively by coaxial pitching floating bearing with pitching cabinet or so end face.
The fixed part that pitching transmission case, pitching limiter, pitching lock and pitching rotation become is installed in a pitching left side
Support arm；Telescope combination is also fixedly installed on the outside of the left support arm of pitching, and be provided on the left support arm of pitching for telescope combination with
The through-hole that signal passes through is realized between beam waveguide combination；4 pitching buffers are mounted on the left support arm of pitching and the right support arm of pitching
Inside；The right support arm of pitching is provided with the through-hole passed through for beam waveguide signal up and down.Pitching support arm structure is as shown in Figure 7, Figure 8.
Pitch bearing is the two large-scale crossed roller bearing in left and right, and two bearings centre of gyration line forms pitch axis, bearing
Outer ring is made final stage of the gear as pitching transmission system.Pitch bearing structure is as shown in Figure 9.
Pitching transmission case inputs external impetus, so that pitching cabinet is rotated around pitching floating bearing, and pass through pitching
Rotation, which becomes, carries out signal transmission.
Orientation combination uses turntable type structure, including azimuth rotating platform, azimuth base, orientation floating bearing, Amimuth Transmission machine
Structure and orientation cable winder, as shown in figure 11.
Azimuth rotating platform is power transmission transition piece, and using square top and round bottom double-layer structure, plane is pitching or so branch on azimuth rotating platform
Beam waveguide bracket in arm and beam waveguide combination provides mounting plane, and azimuth rotating platform lower plane is fastened on orientation and returns
Shaft is held on moving-coil, center installation position axis.
It is cuboid above azimuth rotating platform shape, long 4200mm, wide 4200mm, high 470mm, lower section is cylindrical structure,
Diameter 4100mm, high 358mm is welded using Fine Steel Casting iron plate, with good stiffness.Azimuth rotating platform structure is as schemed
Shown in 12.
Azimuth base is the support load basic part of antenna structure system, using truncated cone structure, top installation position
Floating bearing is determined ring with orientation floating bearing and is fixedly connected, and azimuth base lower part connects by the way that 32 M42 bolts and changeover portion are fixed
It connects；Azimuth base base diameter isTop diameter isHigh 4658mm, using Fine Steel Casting iron plate
Group is welded into double-layer cavity structure, has good rigidity, and hollow inside provides installation and signal transmission for beam waveguide combination
Space.Azimuth base structure is as shown in figure 13.
Orientation floating bearing is the key that load revolving member in antenna subarrays.There must be enough axial carrying energy
Power and resistance to capsizing, the radial and axial runout error of bearing should meet the requirement of shafting precision, with smooth running and preferably
Low-speed running characteristic.Compared by calculating, analyzing, the basic structure size of bearing is as shown in figure 14.
To realize orientation rotation ± 355 °, the damage of cable is avoided, the cabling on antenna pedestal uses cable winding mode.Electricity
Cable winding device is mounted on the intracavitary centre of azimuth base, its top layer's sports ring is fixed on azimuth axis, with azimuth axis
Work horizontally rotates, several annulus are sling in intermediate steel chain (wirerope) connection, and each annulus is made spiral with steel chain (wirerope)
Movement, annulus are equipped with several uniformly distributed cable through holes, fix cable in order, and each interannular cable is slightly longer than steel cable, with
Avoid cable stress in movement.Lowest level sports ring slide up and down it can only along guide post by the soft fixation of guide post, without
It can be rotated along azimuth axis.4 guide posts are along the circumferential direction uniformly distributed, are fixedly connected on azimuth base interlayer lower part.Cable is in lower section
There are surpluses, it is ensured that in ± 355 ° of slewing area, cable is not wound in orientation.Cable winder is as shown in figure 15.
The rotational angle of azimuth axis of antenna and pitch axis is transformed into electric signal and passes to outside by shaft angle detection device to be watched
Control unit is taken, realizes angle measurement and coding, pitch orientation uses sleeve shaft-type multipolar resolver, orientation in the present embodiment
Direction uses photoelectric code disk, implements the angle variable quantity of measurement and transmission antenna axis.
The beam waveguide combination includes feed and multiple groups mirror structure, realizes X/ using beam waveguide feed mode
Ka/S frequency range observing and controlling；Every group of reflecting mirror includes band backing strip panel and adjustment mechanism, and adjustment mechanism is by bracket and flexural pivot screw rod and lock
Tight device composition, for adjusting band backing strip panel angle, it is ensured that reflector position precision and reflection precision meet electric requirement；Often
Group transmitting mirror is installed in seal protection cylinder.Beam waveguide group is combined into and is laid out as shown in Figure 16.
In order to enable the safe and reliable work of antenna structure subsystem, it is provided in antenna structure subsystem multiple
Link of protection, they all play particularly important effect in the operating of antenna structure subsystem.
It is limiting device first, limiting device is the very important protective device of antenna structure subsystem, it can be ensured that is set
The standby operating of safety at full speed in working region, and can play the role of alerting in advance and slow down.
Antenna bearingt, pitching are equipped with pre- limit and limit eventually, and pitching limits in advance to be separately positioned on -4 ° and+181 ° of positions,
Whole extreme position is respectively provided on -4.5 ° and 181.5 ° of positions；Orientation limits in advance to be separately positioned on -355 ° and+355 ° of positions, is limited eventually
Position is respectively provided on -356 ° and 356 ° of positions.When antenna runs to pre- restraining position, high pressure under antenna driving motor, day
Line operating loses motive power, and when antenna since inertia remains in operation, when finally encountering whole extreme position switch, antenna driving motor is disconnected
Electricity, brake, antenna stop motion.
Followed by pitching buffer, pitching buffer are the another very important protections of antenna structure subsystem operation process
Device, after limiting device failure, when antenna operates at a relatively high speed, the buffer stoppers of antenna pitching box top two sides will with it is slow
It rushes device to collide, the energy that buffer operates antenna all absorbs, to protect the safety of antenna structure subsystem.Buffer is
Variable orifice damp type hydraulic bjuffer, the collision between buffer and antenna pitching sector is completely inelastic collision, with buffering
The deep movement of device collision bar, hydraulic damping increases, to ensure that the motion energy of antenna can be absorbed by buffer completely.
And pitching lock is to meet collection when strong wind protects all or none task for antenna and be arranged when overhaul of the equipments
, when Antenna aperture, which is in, to be needed to collect towards day state, in the locking pin insertion pitching yoke locking hole seat of lock.Locking
Device has manual and electronic two kinds of working methods, and there is insertion to exit integrated control switch in place and indicate display function, pitching lock
Device is determined loaded on the left support arm of pitching.
Mechanical analysis calculating is carried out to entire antenna structure below, including related mechanical analysis is shaken in malformation calculating, ship
It calculates and focus shift calculates:
Malformation calculates Main Analysis subreflector and reflecting mirror:
Subreflector is connect by the screw rod of 4 M20 with support adjustment mechanisms, and stress condition is shown in Figure 17, malformation are as follows:
The back side reflecting mirror M1 is reinforced using netted gusset, and to improve its structural rigidity, reflecting mirror M1 passes through pose adjustment branch
Frame is connected on antenna mount pitching box foundation plate, and short axle is stretched out in two sides and the left and right hole of bracket cooperates, then a plus adjustment spiral shell
Bar, to realize that mirror surface pitch angle adjusts.Reflecting mirror M1 stress condition is shown in Figure 18.
Malformation calculates:
A) the suffered resultant force of reflecting mirror M1 pitch axis: F=434.6kg
B) malformation calculates (double fulcrum beams)
Wherein: b=1064, l=1214, X=150, d=60.
The back side reflecting mirror M2 is reinforced using netted gusset, and to improve its structural rigidity, reflecting mirror M2 passes through pose adjustment branch
Frame is connected on the outside of the right support arm of antenna mount on base plate, and short axle is stretched out in two sides and the left and right hole of bracket cooperates, then a plus tune
Whole screw rod, to realize that mirror surface pitch angle adjusts.Reflecting mirror M2 stress condition is shown in Figure 19.
Malformation calculates:
A) the suffered resultant force of reflecting mirror M2 pitch axis: F=886.76kg
B) malformation calculates (double fulcrum beams)
Wherein: b=1604, l=1804, X=200, d=80.
The back side reflecting mirror M3 is reinforced using netted gusset, and to improve its structural rigidity, reflecting mirror M3 passes through pose adjustment branch
Frame is connected on the outside of the right support arm of antenna mount on base plate, and short axle is stretched out in two sides and the left and right hole of bracket cooperates, then a plus tune
Whole screw rod, to realize that mirror surface pitch angle adjusts.Reflecting mirror M3 stress condition is shown in Figure 20.
Malformation calculates:
A) the suffered resultant force of reflecting mirror M3 pitch axis: F=566.89kg
B) malformation calculates (double fulcrum beams)
Wherein: b=1604, l=1804, X=200, d=80.
The back side reflecting mirror M4 is reinforced using netted gusset, and to improve its structural rigidity, reflecting mirror M4 passes through pose adjustment branch
Frame is connected on antenna pedestal orientation turntable base plate, and short axle is stretched out in two sides and the left and right hole of bracket cooperates, then a plus adjustment spiral shell
Bar, to realize that mirror surface pitch angle adjusts.Reflecting mirror M4 stress condition is shown in Figure 21.
Malformation calculates:
A) the suffered resultant force of reflecting mirror M4 pitch axis: F=277.1kg
B) malformation calculates (double fulcrum beams)
Wherein: b=1064, l=1214, X=150, d=60.
It is each subitem calculating of related data progress to be shaken according to ship, including inertia force, inertia carry that ship, which shakes related Mechanics Calculation,
The calculating of load forces square etc..
Ship shakes related data and is shown in Table 2.Using the earth as reference system, using boat deck as object, it is square to calculate boat deck angular speed
Root are as follows: 2.8 °/s, calculate boat deck angular acceleration root-mean-square value are as follows: 1.64 °/s2。
Ship is taken to shake central point 20 meters below deck, antenna structure system is installed on the pedestal on 2 meters of deck or more, antenna
Pitching works in 75 degree of highest elevation angle position.Calculation diagram is shown in Figure 22.
Related data is shaken according to ship, inertia force, the moment of inertia etc. of each associated part of beam waveguide are calculated, calculated
Journey and it the results are shown in Table 3.
3 ship of table shakes related Mechanics Calculation data and result
Ship, which shakes, increases pitching part by moment of inertia 9807/9.8=1000kgm.
It includes that subreflector focus shift calculating and the displacement of each reflector focal point calculate that focus shift, which calculates,.
According to engineering experience, in antenna beam Wave guide system, subreflector focal variation amount is maximum, using subreflector as
Ideal rigid body, under wind load and gravity synergy, X-direction displacement -0.022, Y-direction displacement -1.67, Z-direction displacement -
0.62, cause subreflector focus space to be displaced 1.78mm.
Each reflecting mirror is mounted on inside antenna pedestal by adjusting bracket, is calculated to simplify, according to engineering experience, instead
Ideal rigid body can be regarded as by penetrating mirror and adjustment bracket, antenna pedestal basis, carried out mechanics simplification to each structural member of antenna pedestal and established mathematics
Model.Act on the combined load of antenna pedestal pitching axis center are as follows: torque 9400kgm, cross force 4800kg utilize mechanical analysis
4 kinds of operating conditions of software point are calculated.Calculating is divided into two parts:
1) deflection of each reflector alignment bracket installation fulcrum under 4 kinds of operating conditions is calculated separately, and selects the maximum.
2) according to each reflecting mirror space geometry relationship, each reflector focal point location variation is calculated.
The center reflecting mirror M1 variable quantity 0.12mm；
The center reflecting mirror M2 variable quantity 3.85mm, focal position variable quantity 3.36mm；
The center reflecting mirror M3 variable quantity 0.05mm, focal position variable quantity 0.03mm；
The center reflecting mirror M4 variable quantity 0.09mm.
In addition, also accounting for antenna three proofings problem in the present embodiment, wherein beam waveguide combines each reflecting mirror and tune
The three proofings problem of whole bracket is using all-sealed structure, each reflecting mirror and adjustment bracket by spray zinc, spraying heavy antisepsis priming paint, face
Qi Hou is mounted in the beam waveguide cylinder of opposing seal, can be filled dry air with inflator timing in this space, be avoided salt fog
And the invasion of wet environment, it is ensured that fully meet three proofings requirement.In addition to beam waveguide combination fixed part is using sealing structure, side
Position, pitching have the part of relative rotation according to electric requirement, and there are two types of all-sealed structure design schemes.
All-sealed structure scheme 1
Using the structure type for using bearing and sealing ring between inside and outside waveguide cylinder, it is in each reflecting mirror and adjustment bracket
In the environment of opposing seal, three proofings requirement can be fully met.As shown in Figure 23, orientation is hermetically sealed for pitching all-sealed structure scheme 1
Organization plan is similar with its.Its major advantage is that moment of friction is smaller when inside and outside waveguide cylinder relatively rotates, and disadvantage is that structure is multiple
It is miscellaneous, higher cost.
All-sealed structure scheme 2
Mi Quan is used alone using between inside and outside waveguide cylinder, three proofings requirement can also be met.Pitching all-sealed structure scheme 2 is shown in
Shown in Figure 24, orientation all-sealed structure scheme is similar with its.Its major advantage is that structure is simple, and cost is relatively low, disadvantage be in,
Moment of friction is larger when external wave guide tube relatively rotates.
Although the embodiments of the present invention has been shown and described above, it is to be understood that above-described embodiment is example
Property, it is not considered as limiting the invention, those skilled in the art are not departing from the principle of the present invention and objective
In the case where can make changes, modifications, alterations, and variations to the above described embodiments within the scope of the invention.
Claims (8)
1. a kind of middle-size and small-size beam waveguide feed formula antenna system of ocean boat-carrying, it is characterised in that: including antenna reflector, antenna
Seat, changeover portion and beam waveguide combination；
The antenna reflector is that steel radiates beam type amendment type paraboloid of revolution structure, and Reflector Panel uses aluminum Independent adjustable
High-precision panel, panel precision meets electrical specifications requirement, and panel construction rigidity meets mechanical deformation requirement and has redundancy；
The antenna pedestal uses azimuth pitch type structure, including pitching combination, orientation combination, shaft angle detection device；
The pitching combination is connected with left and right support arm using double support arm structures, pitching cabinet therein by two floating bearings respectively
It connects, the centre of gyration line of two floating bearings forms pitch axis, and double support arm lower end surfaces combine connection with orientation；
The orientation combination uses turntable type structure, including azimuth rotating platform, azimuth base, orientation floating bearing, Amimuth Transmission machine
Structure and orientation cable winder；
The azimuth rotating platform is power transmission transition piece, and plane is in pitching or so support arm and beam waveguide combination on azimuth rotating platform
Beam waveguide bracket provides mounting plane, and azimuth rotating platform lower plane is fastened on orientation floating bearing moving-coil, center installation
Azimuth axis；
The azimuth base top installation position floating bearing, determines ring with orientation floating bearing and is fixedly connected, azimuth base lower part
It is fixedly connected with changeover portion；Installation and signal transmission space are provided inside azimuth base for beam waveguide combination；
The rotational angle of azimuth axis of antenna and pitch axis is transformed into electric signal and passes to outside by the shaft angle detection device to be watched
Take control unit；
The changeover portion connection orientation pedestal and the feed of hull interior install cabin；
The beam waveguide combination includes feed and multiple groups mirror structure, realizes X/Ka/S frequency using beam waveguide feed mode
Section observing and controlling；Every group of reflecting mirror includes band backing strip panel and adjustment mechanism, and adjustment mechanism is for adjusting band backing strip panel angle, it is ensured that
Reflector position precision and reflection precision meet electric requirement；Every group of transmitting mirror is installed in seal protection cylinder.
2. the middle-size and small-size beam waveguide feed formula antenna system of a kind of ocean boat-carrying according to claim 1, it is characterised in that:
The antenna reflector uses combined structure form, including antenna interarea, antenna back frame, minor face and support adjustment machine
Structure；
The antenna interarea is divided into three circles: inner ring, centre circle and outer ring；Three circle panels are made of several pieces of monolithic panel splicings；
The monolithic panel uses rigid panel structural shape, is riveted by stretching covering and longitudinal rib, circumferential muscle；
The antenna back frame includes center of antenna body and radiation beam；The center of antenna body is regular octahedron shape welded steel structure,
It is arranged in the antenna interarea center back position；There are the intersecting parallels frame for being disposed with shear web, well in regular octahedron
An enclosed shape cell is formed among font frame, for providing feed channel；The radiation beam is arranged in the antenna interarea
Back is located at around center of antenna body, is used to support the antenna interarea；
The minor face uses four strut cross support forms, is equipped with adjustment mechanism in support bar top, can be to minor face three
Independent adjustment is carried out on a displacement freedom, to meet the requirement of antenna electrical specifications commissioning.
3. the middle-size and small-size beam waveguide feed formula antenna system of a kind of ocean boat-carrying according to claim 2, it is characterised in that:
Monolithic panel member material uses LY12, and the surface accuracy of monolithic panel reaches σ≤0.1r.m.s.
4. the middle-size and small-size beam waveguide feed formula antenna system of a kind of ocean boat-carrying according to claim 2, it is characterised in that:
The minor face is formed using rotary pressing processing, is finished after molding to the working surface of minor face, is made the worksheet of minor face
Face precision σ≤0.1r.m.s.
5. the middle-size and small-size beam waveguide feed formula antenna system of a kind of ocean boat-carrying according to claim 2, it is characterised in that:
The minor face support rod uses the welded unit of rectangular section, and is mounted on wherein at least one support rod on personnel
Under pedal steel pipe, be easily installed adjustment mechanism.
6. the middle-size and small-size beam waveguide feed formula antenna system of a kind of ocean boat-carrying according to claim 1, it is characterised in that:
The pitching combination is slow including pitching cabinet, pitching support arm, pitching floating bearing, pitching rotation change, pitching transmission case, pitching
Rush device, pitching limiter, pitching lock, pitching ballast box；
The pitching cabinet is the box-shaped structural member of steel plate welding, and left and right end face passes through a pair of of pitching floating bearing and left and right pitching
Support arm is separately connected；And it is also provided with through-hole in the middle part of pitching cabinet or so end face, the through-hole hole as beam waveguide signal；Pitching case
Body upper surface is the joint face with antenna reflector, and lower end surface is the joint face with pitching ballast box, pitching box house bottom surface
For the mounting surface of beam waveguide reflecting mirror；
The pitching support arm divides the left support arm of pitching and the right support arm of pitching, passes through coaxial pitching floating bearing and pitching cabinet respectively
The connection of left and right end face；
The pitching transmission case inputs external impetus, so that pitching cabinet is rotated around pitching floating bearing, and pass through pitching
Rotation, which becomes, carries out signal transmission；
The pitching buffer and the pitching limiter play installation protective effect to the pitching movement of pitching cabinet；
The pitching lock is for locking antenna reflector posture.
7. the middle-size and small-size beam waveguide feed formula antenna system of a kind of ocean boat-carrying according to claim 6, it is characterised in that:
The fixed part that pitching transmission case, pitching limiter, pitching lock and pitching rotation become is installed in the left support arm of pitching；
It is also fixedly installed with telescope combination on the outside of the left support arm of pitching, and is provided on the left support arm of pitching for telescope combination and wave beam wave
Lead the through-hole for realizing that signal passes through between combination；Pitching buffer is mounted on the inside of the left support arm of pitching and the right support arm of pitching；Pitching
Right support arm is provided with the through-hole passed through for beam waveguide signal up and down.
8. the middle-size and small-size beam waveguide feed formula antenna system of a kind of ocean boat-carrying according to claim 1, it is characterised in that:
Reflecting mirror is mounted in seal protection cylinder after spray zinc, spraying heavy antisepsis priming paint, finishing coat, timing in seal protection cylinder
Fill dry air.
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| CN110233354B (en) | 2021-09-17 |
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