A kind of boat-carrying satellite television receiving antenna
Technical field
The utility model relates to a kind of satellite communication antenna, specifically relates to a kind of boat-carrying satellite television receiving antenna.
Background technology
TV reception in the ship motion process because the ship running direction often changes and receives climatic influences such as stormy waves heavy rain, causes satellite television to receive jitter, the phenomenon of losing or interrupting through regular meeting's generation signals.This just requires relative other satellite television receiving antennas of boat-carrying satellite television receiving antenna will have good follow-up control and response speed, and this just has higher requirement to the mechanical structure of antenna.
Present boat-carrying television receiving antenna mostly adopts orientation, pitching, polarization three through-drive, for the base station and quiet in the rotation of these three axles of exceedingly high line can satisfy fully and search the star requirement; For the boat-carrying tracking antenna; Hull is influenced by stormy waves unavoidably and produces the angle of inclination, and this just need compensate through orientation, pitching, polarization transmission, but the angle that can compensate is limited; Big or search championship when putting near the equator at stormy waves, three through-drive can't be satisfied tracer request.And; The control cable of present antenna and video line are connected to indoor mostly with the form of coiling line, twine for avoiding cable, must install stopping means additional and use; The installation of stopping means causes the azimuth of antenna to suffer restraints, and general maximum azimuth also has only 720 °.
Summary of the invention
To the defective of prior art, the purpose of the utility model provides a kind of simple in structure, reliable, boat-carrying satellite television receiving antenna that tracking effect is good.
For reaching above-mentioned purpose, the utility model has adopted following technical scheme:
A kind of boat-carrying satellite television receiving antenna; Comprise base, orientation assembly, pitching assembly, antenna surface and feed polarization assembly, the orientation assembly is installed on the base, wherein; Also comprise a rolling assembly; The rolling assembly bottom is installed in the orientation assembly, and top links to each other with the pitching assembly, feed polarization assembly through be fixed on support bar on the antenna surface be installed in antenna surface over against the position; Orientation assembly, rolling assembly, pitching assembly and feed polarization assembly all adopt the secondary band kind of drive to realize transmission.
The utility model also can further be realized through following scheme:
Described boat-carrying satellite television receiving antenna; Wherein, said orientation assembly comprises that band and orientation secondary are with synchronously synchronously for orient core axle, azimuth rotation groups of holders, azimuth-drive motor, the big belt wheel in orientation, orientation small pulley, orientation transition pulley, orientation belt shaft, orientation one-level; The coaxial middle part that is installed in base of the big belt wheel in orient core axle and orientation; The azimuth rotation groups of holders is rotationally connected through the big belt wheel of bearing and orientation; Azimuth-drive motor is fixedly mounted on the azimuth rotation groups of holders, the axle and the orientation small pulley Joint of azimuth-drive motor; The orientation belt shaft is connected on the azimuth rotation support through bearing is rotating; The transition pulley key is connected an end of orientation belt shaft, and orientation one-level band synchronously is connected realization one-level transmission between orientation small pulley and the transition pulley, and the orientation secondary is with synchronously to be connected and is realized the secondary transmission between the big belt wheel of orientation belt shaft and orientation.
Described boat-carrying satellite television receiving antenna, wherein, described azimuth rotation groups of holders is made up of azimuth rotation support and orientation one-level transmission bracket, and the azimuth rotation support is one to have the casing of a pair of support arm that makes progress, and is arranged with a U type groove on each support arm; Orientation one-level transmission bracket is a L type support, is fixedly mounted on a side of azimuth rotation support casing, and azimuth-drive motor, orientation belt shaft are installed on the one-level transmission bracket.
Described boat-carrying satellite television receiving antenna; Wherein, described rolling assembly comprises rolling electric machine support, rolling motor, rolling small pulley, rolling transition pulley, the big belt wheel that rolls, rolling one-level be with synchronously, roll secondary be with synchronously, roll belt shaft, the axis of rolling and rolling crossbeam; The rolling electric machine support is fixedly mounted on the azimuth rotation support, is positioned at and the relative side of one-level transmission bracket, orientation; The rolling motor be fixedly mounted on the rolling support after rolling small pulley key is connected; The rolling belt shaft is installed in the middle part of azimuth rotation support through rolling bearing, is positioned at the another side that is connected with the rolling support installed surface; Rolling transition pulley key is connected rolling belt shaft afterbody; The big belt wheel that rolls is fixedly mounted on rolling crossbeam middle part; The rolling crossbeam is a V-type casing; The axis of rolling is through the rotating centre bore that passes the rolling crossbeam of rolling bearing, and the two ends of the axis of rolling are fixedly mounted in the U type groove of azimuth rotation support; Rolling one-level band synchronously is connected realization one-level band transmission between rolling small pulley and the rolling transition pulley; Rolling secondary belt wheel is connected to roll and forms the transmission of rolling secondary band between big belt wheel and the rolling belt shaft.
Described boat-carrying satellite television receiving antenna; Wherein, said pitching assembly comprise that a pair of pitching linking arm that is fixedly mounted on rolling crossbeam both sides, a pair of pitching connecting plate, pitching motor, pitching small pulley, pitching transition pulley, the big belt wheel of pitching, pitching one-level are with synchronously, the pitching secondary is with synchronously, pitching belt shaft and pitch axis; The left side pitch axis passes left side pitching linking arm and left side pitching connecting plate Joint; The right side pitch axis passes right side pitching linking arm and the big belt wheel Joint of pitching; Right side pitching connecting plate is fixed in the opposite side of the big belt wheel of pitching; Left and right sides pitching connecting plate respectively with the antenna surface Joint; Pitching motor is fixedly mounted on the pitching connecting plate on right side, and the pitching small pulley is connected with the pitching motor key; The pitching belt shaft is through on the rotating pitching connecting plate that is installed in the right side of rolling bearing; Pitching transition pulley key is connected pitching belt shaft afterbody; The big belt wheel of pitching is fixedly mounted on the pitching mounting panel; Pitching one-level band synchronously is connected realization one-level band transmission between pitching small pulley and the pitching transition pulley; Pitching secondary belt wheel is connected and forms the transmission of pitching secondary band between big belt wheel of pitching and the pitching belt shaft.
Described boat-carrying satellite television receiving antenna, wherein, said orientation one-level synchronously with, orientation secondary synchronously with, the one-level of rolling synchronously with, roll secondary synchronously with, pitching one-level synchronously band and pitching secondary synchronously a side of band the synchronous tension device all is installed.
Described boat-carrying satellite television receiving antenna; Wherein, a conducting slip ring is installed on the said orient core axle, conducting slip ring comprises slip ring inner wire, slip ring seat and slip ring outer conductor; The slip ring inner wire is fixedly mounted on the place, axle center, top of central shaft through the slip ring seat affixed with it; The slip ring outer conductor is set in the slip ring inner wire outside, and leaves the gap between the slip ring inner wire, and the slip ring outer conductor is fixed on the azimuth rotation support and with the azimuth rotation support and rotates around central shaft.
Owing to adopt above technical scheme, make the present invention possess following technique effect:
1, the boat-carrying satellite television receiving antenna of the utility model has increased rolling assembly, realizes the antenna transmission of laterally rolling, and is used to compensate the angle of inclination of hull; Big or search championship when putting at stormy waves near the equator, realize horizontal self-compensating, guarantee good tracking effect;
2, the boat-carrying satellite television receiving antenna of the utility model; Adopt orientation, rolling, pitching, polarization four shaft transmissions; All adopt the structure of the simple stepping motor of control+synchronously with transmission; Transmissions at different levels simultaneously all are furnished with synchronous band tensioning apparatus, have both guaranteed the simply light of system configuration, have guaranteed system's stability of transmission and tracking accuracy again;
3, each parts of the utility model mostly adopt aluminum profile extrusion, and structure is light, and moment of inertia is little, and azimuth rotation support and rolling crossbeam use welding procedure processing, guarantee that again it has enough intensity.
Description of drawings
Fig. 1 is the perspective view of the utility model;
Fig. 2 is the orientation modular construction sketch map of the utility model;
Fig. 3 is the orientation modular construction stereogram of the utility model;
Fig. 4 is the utility model rolling assembly structural representation;
Fig. 5 is the end view of the utility model Fig. 4;
Fig. 6 is the utility model antenna surface, feed, polarization structure sketch map.
Fig. 7 is the utility model luffing structure sketch map.
Embodiment
Shown in Fig. 1-3, be the boat-carrying satellite television receiving antenna of the utility model, it is a scope of design with 1.2-2.0 rice antenna, is the standard implementation example with 1.5 meters C-band antennas, its structural member is main with aluminium mainly.
Like Fig. 1, shown in Figure 2, on the firm platform that is connected boats and ships of antenna base 1; The big belt wheel 2-1 in the orientation of orientation assembly 2 is installed on the antenna base 1; Orient core axle bearing assembly 2-2 (comprises central shaft; Bearing, bearing pedestal and locking nut) bearing pedestal be rotationally connected and be installed on the big belt wheel 2-1 in orientation; Azimuth rotation support 2-3 is that the body structure of a welding is threaded and is installed on the bearing pedestal of orient core axle bearing assembly 2-2, so just realizes being rotationally connected of big belt wheel 2-1 in azimuth rotation support 2-3 and orientation and antenna base 1.On orient core axle bearing assembly 2-2, installed conducting slip ring additional, the slip ring inner wire is cemented in and after slip ring seat 2-11 goes up this assembly is screwed onto on the locking nut of orient core axle bearing assembly 2-2, guarantees the axiality of conducting slip ring and orient core axle; The slip ring outer conductor is fixed on azimuth rotation support 2-3 and upward rotates around the orient core axle with it.Access is indoor after so just can the cable of antenna being passed through the slip ring inner wire by the slip ring outer conductor.Guarantee the unlimited rotation of orientation assembly realization, increased the reliability of system.Orientation one-level transmission bracket 2-4 is the L type support of a welding; Respectively azimuth-drive motor, orientation small pulley, azimuth-drive motor bracket component 2-5 are threaded with it; After orientation belt shaft assembly 2-6 (comprising belt shaft, bearing, bearing pedestal etc.) is rotationally connected with it transition pulley 2-7 key is mounted on the tail end of orientation belt shaft, is fixed with nut; Again this assembly is installed on the azimuth rotation support 2-3.The orientation one-level is connected the one-level transmission that realizes the orientation between orientation small pulley and the orientation transition pulley with 2-8 synchronously, the orientation secondary is installed in the secondary transmission that realizes the orientation between the big belt wheel of orientation belt shaft and orientation with 2-10 synchronously.Through the tightness that synchronous band tensioning apparatus 2-9 adjustment is with synchronously, principle is seen introduction to some extent in rolling assembly, has guaranteed the transmission accuracy and the response speed in orientation.
Like Fig. 4, rolling assembly 3 shown in Figure 5; Rolling assembly 3-2 comprises rolling motor, rolling small pulley and rolling electric machine support; The rolling motor be installed on the rolling electric machine support after rolling small pulley key is connected, again this sub-assembly is installed on the side of azimuth rotation support 2-3.Rolling belt shaft assembly 3-3 (comprising belt shaft, bearing, bearing pedestal etc.) is mounted on the middle part of azimuth rotation support 2-3 through rolling bearing, and there have an end of tooth to stretch into azimuth rotation support 2-3 to be inboard.Rolling transition pulley 3-4 is installed in the afterbody of rolling belt shaft through the key connected mode in the outside of azimuth rotation support 2-3, fix with nut.Rolling crossbeam 3-1 is the V-type square chest structure of a welding, and axis of rolling 3-6 is mounted on the central hole location of rolling crossbeam 3-1 through rolling bearing, and roll big belt wheel 3-7 and rolling crossbeam are fixed.The combinations thereof part is put into the U type groove of azimuth rotation support 2-3 from top to bottom; The axis of rolling cooperates with U type groove; Axis of rolling two ends are milled with a groove respectively; Snap in wherein with clamp 3-9 and to be fixed on the azimuth rotation support 2-3 with screw again, just realize that the axis of rolling is connected with the firm of azimuth rotation support.The rolling one-level is with the 3-5 two ends to be installed in respectively on rolling electrical machine belt pulley and the rolling transition pulley synchronously; The rolling secondary is with the 3-8 two ends to be contained in respectively on rolling belt shaft and the big belt wheel of rolling synchronously; The rolling motor is realized the rolling transmission through double reduction with bigger output torque like this; Roll angle can be set slewing area according to actual operating position, and the utility model is set to ± and 25 °.In the two-stage transmission of rolling, install respectively by synchronous band tensioning apparatus 3-10 and 3-11; Comprising taut band seat, adjustment screw and arm-tie in the tensioning apparatus respectively, is example with 3-10, and taut band seat and rolling electric machine support are fixed; Arm-tie and motor are fixed; The adjustment screw passes in the screwed hole that the taut band seat is screwed into arm-tie, rotates the adjustment screw and can change the centre-to-centre spacing of rolling small pulley and rolling transition pulley, and then play the effect that tensioning is with synchronously.3-11 and 3-10 principle are not done too much introduction here together.
The pitching assembly 4 same motors that adopt adopt the transmission of the secondary band kind of drive as driving mechanism.It comprises that pitching motor pulley assemblies 4-2, pitching belt shaft assembly 4-3 (comprising belt shaft, bearing, bearing pedestal etc.), pitching transition pulley 4-4, pitching one-level be with 4-5, the big belt wheel 4-6 of pitching, pitching secondary to be with 4-7, pitch axis 4-8, pitching to be with tensioning apparatus 4-9,4-10 synchronously synchronously synchronously.Two pitching connecting plate 4-11 link to each other with the pitching linking arm through pitch axis 4-8 respectively; The lower end of pitching linking arm and orientation crossbeam 3-1 Joint.On the pitching connecting plate 4-11 in left side and the pitch axis 4-8 Joint in left side, the pitching connecting plate 4-11 on right side is fixedly mounted on the big belt wheel 4-6 of pitching on right side, and the big belt wheel 4-6 of pitching is connected with the pitching linking arm through the pitch axis 4-8 on right side.Pitching motor drives pitching connecting plate and antenna surface realization pitching transmission through double reduction with bigger output torque like this, and the angle of pitch can be set slewing area according to actual operating position, and the utility model is set to 0-110 °.The use principle of band tensioning apparatus is identical with rolling assembly synchronously, does not do too much introduction here.
As shown in Figure 3; Antenna surface assembly 5 comprises antenna surface 5-1, antenna surface terminal pad 5-2 and antenna surface backboard 5-3; Antenna surface terminal pad 5-2 is riveted on the back center position of antenna surface 5-1, and antenna surface backboard 5-3 is fixed or movable to be connected 5-2 on the antenna surface terminal pad.
As shown in Figure 3, the axle of polarization stepping motor 6-4 and the axle of potentiometer 6-7 are installed on the mounting panel 6-1 that feedovers after affixed with polarization small pulley 6-5 respectively.Wave disc 6-8 is installed in the center of feedforward mounting panel 6-1.The big belt wheel 6-3 that polarizes is rotationally connected through bearing assembly 6-2 and is installed on the feedforward mounting panel, clamps fixing behind the big belt wheel of tuner 6-9 insertion polarization.Band 6-6 two ends are enclosed within respectively on big belt wheel of polarization and the polarization small pulley synchronously.Feed assembly 6 is connected through three support bar 6-10 with antenna surface 5-1.Deceleration drives the polarization rotation of tuner with respect to antenna surface to the polarization motor through one-level like this.
The above is merely the preferred embodiment of the utility model, is not the utility model is done any pro forma qualification.Any change that is equal to, modification or differentiation etc. that all those skilled in the art utilize the technical scheme of the utility model that the foregoing description is made all still belong in the scope of the utility model technical scheme.