A kind of optical antenna of flexible gaskets structure
Technical field
The utility model is related to optical antenna technical field, specially a kind of optical antenna of flexible gaskets structure.
Background technology
, it is necessary to set up 2 optical antennas face-to-face in radio optical communication system, the optical antenna light path angle of divergence is small, passes
Defeated distance is remote, is typically erected at building, high tower, vehicle top, must be unobstructed between two antennas.The antenna for aloft setting up is by ground
Table vibrations, wind and temperature change etc. all can deviate from each other the laser beam of two-way alignment originally, cause light path failure, communications errors
Or interrupt.Therefore optical antenna system needs to increase skew of the facility from motion tracking for matching light beam to overcome light beam.Traditional
The automatic trace facility of optical antenna will increase controlling party parallactic angle to realize the rotation in orientation and pitch orientation in structure
Rotary shaft and a gimbals for the rotary shaft of control luffing angle, the motor that configuration two axles of control are rotated and antenna, lead
Cause optical antenna volume and weight to increase many, not only increase equipment cost, also increase the requirement to antenna mounting locations,
The assembling and setting of installation process is complicated, installs maintenance cost and rises.
Utility model content
The purpose of this utility model is to design a kind of optical antenna of flexible gaskets structure, and transmitting-receiving light is coupled with flexible gaskets
Road and antenna casing, instead of traditional double rotary shaft gimbals structures, reduce number of parts, volume, weight, reduce light
Antenna production cost is learned, antenna adjustment, assemble flow is reduced.
A kind of optical antenna of flexible gaskets structure of the utility model design, including antenna casing, outer wall are transmitting-receiving mirror
The transmitting-receiving light path of cylinder, azimuth-drive motor and pitching motor.Transmitting-receiving lens barrel, azimuth-drive motor and pitching motor are mounted on antenna casing
Interior, flexible gaskets suit is fixed on transmitting-receiving lens barrel front end, and front and back panels have the centre bore coordinated with transmitting-receiving lens barrel, are set in
Transmitting-receiving lens barrel front end, front and back panels coordinate with antenna casing, and are fixed on antenna casing front end, and flexible gaskets are embedded in rear board
Centre bore in, be fixed between the front and back panels of mutual fastening, azimuth-drive motor and pitching motor directly couple and drive transmitting-receiving
Lens barrel rear end.Because flexible gaskets are flexible, when lens barrel rear end is received and dispatched by azimuth-drive motor and pitching motor driving, it is allowed to receive and dispatch
Small-angle Rotation in lens barrel orientation, pitch orientation, rotational angle reaches ± 2 °.When antenna because the external factor change side such as vibrations
The change at the azimuth and/or the angle of pitch of Xiang Shi, azimuth-drive motor and pitching motor regulation antenna, reduces antenna condition, keeps
Proper communication.
The flexible gaskets are annular, and external diameter is engaged with the centre bore aperture of front and back panels, and ring wall thickness is 1~6mm,
There are 3~8 radial direction double wedges in ring, radial convex tooth tip forms inner ring, and inner ring diameter coordinates with transmitting-receiving barrel outside diameters, radial direction double wedge
Highly it is 6~12mm, the axial width of flexible gaskets is 3~8mm.
The centre bore of rear board is stepped hole, and bore dia is equal with flexible gaskets external diameter before centre bore, the depth in preceding hole etc.
In flexible gaskets axial width;The rear bore dia of centre bore is less than flexible gaskets external diameter, more than transmitting-receiving lens barrel front end external diameter.Above
The diameter of the centre bore of plate is less than flexible gaskets external diameter, more than transmitting-receiving lens barrel front end external diameter.Have on front panel and rear board mutually
The connecting hole of cooperation, the fixing hole being also connected with antenna casing.Flexible gaskets are embedded in the preceding hole of rear board centre bore, are terminated in
The step of metapore, the front end face of flexible gaskets is concordant with the front end face of rear board.Front panel is fastened with rear board, and screw is before and after
The connecting hole of panel connects two panels and two panels is connected with antenna casing, and front panel is fixed flexible gaskets.Transmitting-receiving mirror
Cylinder is passed through and stretched out in flexible gaskets the past face plate center hole.
The flexible gaskets are appointing in copper washer, aluminium packing ring, silver gasket, steel washer, rubber washer or silicone gasket
One kind, the maximum deflection angle of the antenna structure assembled using the flexible gaskets of different materials is different.
Transmitting-receiving lens barrel front end outer wall before transmitting-receiving lens barrel fastening piece has double step, and the external diameter of the first weight step is more than soft
Property packing ring radial convex tooth form the internal diameter of inner ring, less than rear board metapore internal diameter, the width of the first weight step is equal to anticreep pad
The axial width of circle;Second weight outer diameter of step is equal to the internal diameter that flexible gaskets radial convex tooth forms inner ring.First heavy step outer wall
There is screw thread, anticreep packing ring is spun on thereon, in case transmitting-receiving lens barrel displacement comes off when excessive.The inner ring that flexible gaskets radial convex tooth is formed
Hard-pressed bale receives and dispatches the heavy step outer wall of lens barrel second, and the outer wall of transmitting-receiving lens barrel second heavy step front end has a screw thread, and outer trim ring is from transmitting-receiving mirror
Cylinder front end is screwed in, and flexible gaskets retaining washer is fixed.
The outer wall of the anticreep packing ring has step, and rear end external diameter is more than rear board metapore internal diameter, and front end external diameter is small later
Plate metapore internal diameter.Rear board centre bore is enclosed within anticreep gasket leading end, the rear end face of rear board and the outer wall step of anticreep packing ring
Between have axial gap.
There is retaining washer, the inner ring that retaining washer internal diameter is formed with flexible gaskets radial convex tooth in the flexible gaskets front
Internal diameter is equal, and external diameter is less than front panel centre bore internal diameter, and there are 3~8 radial convex between cog with flexible gaskets retaining washer rear end
3~8 axial double wedges that gap is engaged, retaining washer is enclosed within the transmitting-receiving weight step of lens barrel second, the axial double wedge of retaining washer
It is inserted between the radial direction double wedge of flexible gaskets, in case the rotation of flexible gaskets is relative with transmitting-receiving lens barrel generation sliding.Outer trim ring from
Transmitting-receiving lens barrel front end is screwed in, and retaining washer and flexible gaskets are fixed.
The outer wall of the outer trim ring has step, and rear end external diameter is less than front panel centre bore internal diameter, and front end external diameter is more than above
Plate centre bore internal diameter.Outer trim ring rear end has part to be inserted in front panel centre bore, before the outer wall step and front panel of outer trim ring
There is axial gap between end face.The boss at the oriented center in front end of the outer trim ring centre bore, boss height is less than transmitting-receiving lens barrel
The barrel of front end.Outer trim ring screws in transmitting-receiving lens barrel front end, and the boss of its nose end is stuck in the nozzle of transmitting-receiving lens barrel as seam, radially
Positioning, in case outer trim ring screws in tension and damages retaining washer and/or flexible gaskets.
There is relative motion, the inner ring of flexible gaskets, outer ring with antenna casing or transmitting-receiving lens barrel to prevent flexible gaskets
The face coordinated with radial direction double wedge and other feature contacts, and transmitting-receiving lens barrel, front and back panel and retaining washer and flexible gaskets connect
Touch the face for coordinating and be zigzag fashion, contact surface is engaged together, it is ensured that its bonding strength
The Internal and external cycle of flexible gaskets, radial direction double wedge and front/rear end are coated with binding agent, make flexible gaskets and transmitting-receiving lens barrel,
Front and back panel and retaining washer are bonded, to ensure the fixation of flexible gaskets.
After completion is assembled, anticreep packing ring, outer trim ring, front panel and rear board constitute position limiting structure, in case transmitting-receiving mirror
Cylinder moves forward and backward excessive, is come off from antenna casing.
Compared with prior art, a kind of advantage of the optical antenna of flexible gaskets structure of the utility model is:1st, flexible pad
Circle substitutes 2 traditional shaft universal bracket formula structures, azimuth-drive motor and pitching motor direct drive transmitting-receiving lens barrel rear end completely, reduces
Number of parts, cramped construction, make the reduction in bulk 40% or so of optical antenna, weight reduction 30% or so, and be easy to pack, transport
It is defeated, open erection;2nd, flexible gaskets using stable chemical nature, non-aging deformation, have higher mechanical strength and lightweight
Metal or synthetic material, make this structural volume weight all reduce significantly, and durable in use;3rd, there is flexible gaskets certain damping to make
With protection transmitting-receiving lens barrel is transmitting-receiving light path, it is to avoid because jolting, ground vibration, wind-force, temperature change etc. cause light path sending and receiving not
Coaxially, communication efficiency is influenceed;4th, flexible gaskets significantly reduce antenna volume, weight and number of parts, are effectively reduced former material
Material cost, manufacturing cost and transport, erection, the human cost of debugging.
Brief description of the drawings
Fig. 1 is the optical antenna embodiment side elevational cross-section schematic diagram of this flexible gaskets structure;
Fig. 2 is the transmitting-receiving lens barrel front end partial cutaway schematic of M parts in Fig. 1;
Fig. 3 is the optical antenna embodiment flexible gaskets structural representation of this flexible gaskets structure;
Fig. 4 is the optical antenna embodiment flexible gaskets and front and back panels assembly relation schematic diagram of this flexible gaskets structure;
Fig. 5 is the retaining washer structural representation of the optical antenna embodiment of this flexible gaskets structure;
Fig. 6 is the dress of the optical antenna embodiment transmitting-receiving lens barrel front end flexible gaskets with other packing rings of this flexible gaskets structure
With schematic diagram.
In figure marked as:
1st, outer trim ring, 2, front panel, 3 flexible gaskets, 31, radial direction double wedge, 4, rear board, 5, anticreep packing ring, 6, orientation electricity
Machine, 7, pitching motor, 8, antenna casing, 9, transmitting-receiving lens barrel, 10, retaining washer, 101, axial double wedge.
Specific embodiment
In order that technical solutions of the utility model become apparent from, below in conjunction with the accompanying drawings, the utility model is done further
Describe in detail.
The optical antenna embodiment of this flexible gaskets structure is as shown in figure 1, be transmitting-receiving lens barrel 9 including antenna casing 8, outer wall
Transmitting-receiving light path, azimuth-drive motor 6 and pitching motor 7.Transmitting-receiving lens barrel 9, azimuth-drive motor 6 and pitching motor 7 are mounted on outside antenna
In shell 8.This example silicone gasket is fixed on transmitting-receiving lens barrel 9 front end as the suit of flexible gaskets 3, front panel 2 and rear board 4 have with
The centre bore that transmitting-receiving lens barrel 9 coordinates, is set in transmitting-receiving lens barrel 9 front end, and front panel 2 and rear board 4 coordinate with antenna casing 8, and
The front end of antenna casing 8 is fixed on, flexible gaskets 3 are embedded in the centre bore of rear board 4, is fixed on the He of front panel 2 of mutual fastening
Between rear board 4, azimuth-drive motor 6 and pitching motor 7 directly couple and drive transmitting-receiving lens barrel 9 rear end.
As shown in figure 3, this example flexible gaskets 3 are annular, external diameter matches with the centre bore aperture of front panel 2 and rear board 4
Close, ring wall thickness is 5mm, there are 4 radial direction double wedges 31 in ring, the top of radial direction double wedge 31 forms inner ring, inner ring diameter and transmitting-receiving lens barrel 9
Major diameter fit, the height of this example radial direction double wedge 31 is 8mm, and the axial width of flexible gaskets 3 is 6mm.
As shown in Fig. 1,2 and 4, the centre bore of this example rear board 4 is stepped hole, bore dia and flexible gaskets 3 before centre bore
External diameter is equal, and the depth in preceding hole is equal to the axial width of flexible gaskets 3;The rear bore dia of centre bore is less than the external diameter of flexible gaskets 3, big
In the transmitting-receiving front end external diameter of lens barrel 9.The diameter of the centre bore of front panel 2 is less than the external diameter of flexible gaskets 3, more than transmitting-receiving lens barrel 9 front end
External diameter.There are the connecting hole of mutual cooperation, the fixing hole being also connected with antenna casing 8 on front panel 2 and rear board 4.Flexible pad
Circle 3 is embedded in the preceding hole of the centre bore of rear board 4, terminates in the step of metapore, the front end face of flexible gaskets 3 and the front end of rear board 4
Face is concordant.Front panel 2 is fastened with rear board 4, and screw connects two panels and by two faces through the connecting hole of front panel 2 and rear board 4
Plate is connected with antenna casing 8, and front panel 2 is fixed flexible gaskets 3.Transmitting-receiving lens barrel 9 is through flexible gaskets 3 from front panel 2
The heart stretches out in hole.
As shown in Fig. 1,2 and 6, the front end outer wall of transmitting-receiving lens barrel 9 before this example transmitting-receiving fastening piece of lens barrel 9 has double step,
The external diameter of the first weight step forms the internal diameter of inner ring more than the radial convex tooth of flexible gaskets 3, less than the metapore internal diameter of rear board 4, the
The width of one weight step is equal to the axial width of anticreep packing ring 5;Second weight outer diameter of step is formed equal to the radial convex tooth of flexible gaskets 3
The internal diameter of inner ring.
First heavy step outer wall has screw thread, and anticreep packing ring 5 is spun on thereon, in case the transmitting-receiving displacement of lens barrel 9 comes off when excessive.It is anti-
The outer wall of de- packing ring 5 has step, and rear end external diameter is more than the metapore internal diameter of rear board 4, and front end external diameter is less than the metapore internal diameter of rear board 4.
The centre bore of rear board 4 is enclosed within the front end of anticreep packing ring 5, has axle between the rear end face of rear board 4 and the outer wall step of anticreep packing ring 5
To gap.The inner ring hard-pressed bale transmitting-receiving heavy step outer wall of lens barrel 9 second that the radial convex tooth of flexible gaskets 3 is formed.The front of flexible gaskets 3 is also
There are retaining washer 10, this example retaining washer 10 as shown in figure 5, the internal diameter of retaining washer 10 and the formation of flexible gaskets radial direction double wedge 31
Inner ring internal diameter is equal, and external diameter is less than the centre bore internal diameter of front panel 2, and there are 4 radial convexes with flexible gaskets 3 rear end of retaining washer 10
4 axial double wedges 101 that the gap of tooth 31 is engaged.Retaining washer 10 is enclosed within the transmitting-receiving weight step of lens barrel 9 second, retaining washer 10
Axial double wedge 101 be inserted between the radial direction double wedge 31 of flexible gaskets 3.Second heavy platform of the transmitting-receiving lens barrel 9 before retaining washer 10
Rank outer wall has screw thread, and outer trim ring 1 screws in from transmitting-receiving lens barrel 9 front end, retaining washer 101 and flexible gaskets 3 are fixed.
The outer wall of outer trim ring 1 has step, and rear end external diameter is less than the centre bore internal diameter of front panel 2, and front end external diameter is more than front panel 2
Centre bore internal diameter.The rear end of outer trim ring 1 has part to be inserted in the centre bore of front panel 2, outer wall step and the front panel 2 of outer trim ring 1
There is axial gap between front end face.
The inner ring of this example flexible gaskets 3, outer ring and transmitting-receiving lens barrel 9, front panel 2 and rear board 4 and retaining washer 10 with
The face being engaged be zigzag fashion, contact surface is engaged together, it is ensured that its bonding strength
The inner ring of this example flexible gaskets 3, outer ring, radial direction double wedge 31 and front/rear end are coated with binding agent, make flexible gaskets 3
Bonded with transmitting-receiving lens barrel 9, front panel 2 and rear board 4 and retaining washer 10, to ensure the fixation of flexible gaskets 3.
After this example assembling is completed, anticreep packing ring 5, outer trim ring 1, front panel 2 and rear board 4 constitute position limiting structure, in case
Transmitting-receiving lens barrel 9 moves forward and backward excessive, is come off from antenna casing 8.
Above-described embodiment, only further describes to the purpose of this utility model, technical scheme and beneficial effect
Specific case, the utility model is not limited to this.All any modifications made within scope of disclosure of the present utility model,
Equivalent, improvement etc., are all contained within protection domain of the present utility model.