CN108365342B - Two-dimensional electrically-controlled antenna adjusting device - Google Patents
Two-dimensional electrically-controlled antenna adjusting device Download PDFInfo
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- CN108365342B CN108365342B CN201810168789.XA CN201810168789A CN108365342B CN 108365342 B CN108365342 B CN 108365342B CN 201810168789 A CN201810168789 A CN 201810168789A CN 108365342 B CN108365342 B CN 108365342B
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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
- H01Q3/04—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 one co-ordinate of the orientation
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Abstract
The invention belongs to the technical field of electrically-tuned antennas, and discloses a two-dimensional electrically-tuned antenna adjusting device, which comprises: the lower end cover assembly of the electrically tunable antenna, an electrical downtilt transmission assembly and a horizontal azimuth transmission assembly; the lower end cover assembly of the electric tuning antenna comprises a lower end cover, an electric downtilt controller and a horizontal azimuth controller, wherein the electric downtilt controller and the horizontal azimuth controller are inserted into the lower end cover; the electrical downtilt controller drives the electrical downtilt transmission assembly, and the horizontal azimuth controller drives the horizontal azimuth transmission assembly. The invention solves the problem that the adjustment of the electrical downtilt and the horizontal azimuth cannot be simultaneously realized by one adjusting device in the prior art, achieves the technical effects of simultaneously adjusting the electrical downtilt and the horizontal azimuth, and has the advantages of convenient disassembly and replacement and convenient antenna layout.
Description
Technical Field
The invention relates to the technical field of electrically tunable antennas, in particular to a two-dimensional electrically tunable antenna adjusting device.
Background
The two-dimensional electric tilt antenna is a mobile antenna which uses electrons to adjust a horizontal azimuth angle and an electric downtilt angle. With the increase and the improvement of the construction strength of the mobile communication infrastructure network in China, the automatic electrically tunable antenna is increasingly applied to the field of mobile communication, and the angle can be conveniently adjusted in real time according to the actual telephone traffic demand condition through the controller pre-arranged at the lower end of the electrically tunable antenna, so that better signal coverage is realized. Meanwhile, the electric tilt antenna can also adjust a horizontal azimuth angle of a certain angle to optimize a network, and the horizontal azimuth angle of the electric tilt antenna needs to be adjusted by an azimuth angle adjusting mechanism.
In the traditional two-dimensional antenna, a horizontal azimuth angle adjusting mechanism and an electric downtilt angle adjusting mechanism are mutually independent, the adjusting device has a complex structure and poor transmission precision, and the electric downtilt angle and the horizontal azimuth angle cannot be adjusted simultaneously by one adjusting device. And most of traditional electric downtilt angle adjusting controllers are built-in, horizontal azimuth angle adjusting controllers are also built-in, built-in controllers are not replaceable, if a motor or a controller fails, the whole antenna cannot adjust the electric downtilt angle and the horizontal azimuth angle, and once the control fails, the whole antenna needs to be replaced. The traditional controller is also externally arranged and mechanical, but the externally arranged mechanism is difficult to operate and brings great maintenance cost. In addition, under the condition that the space of the antenna end cover is limited, the external controller is difficult to arrange and is not attractive, and a large amount of end face arrangement space is occupied by the control port.
Disclosure of Invention
The embodiment of the application provides an antenna adjusting device is transferred to two-dimentional electricity, has solved among the prior art can not realize the problem to the adjustment of electric downtilt and horizontal azimuth simultaneously by an adjusting device.
The embodiment of the application provides an antenna adjusting device is transferred to two-dimentional electricity, include: the lower end cover assembly of the electrically tunable antenna, an electrical downtilt transmission assembly and a horizontal azimuth transmission assembly;
the lower end cover assembly of the electrically tunable antenna comprises a lower end cover, an electric downtilt controller and a horizontal azimuth controller, wherein the electric downtilt controller and the horizontal azimuth controller are inserted into the lower end cover;
the electric downtilt controller drives the electric downtilt transmission assembly, and the horizontal azimuth controller drives the horizontal azimuth transmission assembly.
Preferably, the two-dimensional electrically tunable antenna adjusting device further includes: the upper fixing plate assembly, the lower fixing plate assembly and the reflecting plate assembly are arranged in the cavity;
the upper fixing plate assembly and the lower fixing plate assembly are both fixed on the antenna cover, and the reflecting plate assembly is positioned between the lower fixing plate assembly and the upper fixing plate assembly;
the electrical downtilt transmission assembly and the horizontal azimuth transmission assembly are both positioned between the lower fixed plate assembly and the reflection plate assembly.
Preferably, the horizontal azimuth transmission assembly comprises a bevel gear transmission and a worm gear and worm transmission, and the electric downtilt transmission assembly comprises a gear transmission and a screw transmission.
Preferably, the horizontal azimuth transmission assembly comprises a second input shaft, a second input shaft bevel gear, a worm shaft, a worm wheel, a worm shaft supporting block and a main shaft;
the input shaft II is connected with the input shaft II bevel gear, the input shaft II bevel gear is meshed with the worm shaft bevel gear, the worm shaft bevel gear is connected with the worm shaft, the worm shaft is meshed with the turbine, and the worm gear is connected with the main shaft; the worm shaft supporting blocks are positioned at two ends of the worm shaft.
Preferably, the electrical downtilt transmission assembly comprises a first input shaft, a first input shaft gear, a main shaft gear, a screw shaft and a screw shaft bearing;
the first input shaft is connected with the first input shaft through a gear, the first input shaft gear is meshed with the main shaft gear, the main shaft gear is meshed with the screw shaft gear, the screw shaft gear is connected with the screw shaft, and the screw shaft is connected with the screw shaft through a bearing;
the inner ring of the main shaft gear is a semicircular ring, and the main shaft gear is connected with the main shaft.
Preferably, the reflecting plate assembly comprises a reflecting plate, a first screw fixing seat, a second screw fixing seat, a sliding block, a pull rod and a phase shifter;
two ends of the pull rod are respectively connected with the sliding block and the phase shifter; the sliding block is connected with the screw shaft, and the first screw fixing seat and the second screw fixing seat are respectively positioned at two ends of the screw shaft; the reflection plate is connected with the main shaft.
Preferably, the upper fixing plate assembly comprises an upper fixing seat, an upper fixing bearing and an upper fixing plate;
the upper fixing seat is connected with the reflecting plate, and the upper fixing bearing is respectively connected with the upper fixing seat and the upper fixing plate.
Preferably, the lower fixing plate assembly comprises a lower fixing plate, a lower fixing seat and a middle supporting plate;
the lower fixing plate is connected with the lower fixing seat, and the middle supporting plate is connected with the lower fixing plate.
Preferably, the electrical downtilt controller and the horizontal azimuth controller both adopt direct current speed reduction motors.
Preferably, an input shaft of a motor of the direct current speed reduction motor is provided with a hall sensor, a plurality of magnetic beads are equally distributed on a disc connected with the input shaft of the motor, and the tail end of the motor of the direct current speed reduction motor is provided with a speed reduction gear box.
One or more technical solutions provided in the embodiments of the present application have at least the following technical effects or advantages:
the two-dimensional electrically-tunable antenna adjusting device provided by the invention adopts a pluggable structural form built in the controller, can effectively avoid occupying limited space of the end face of the antenna, and has the advantages of not influencing the layout of a multi-port feeder line and conveniently replacing the controller. The two-dimensional electrically-adjusted antenna adjusting device provided by the invention simultaneously comprises the electric downtilt controller and the horizontal azimuth controller, the electric downtilt transmission assembly is driven by the electric downtilt controller, the horizontal azimuth transmission assembly is driven by the horizontal azimuth controller, the electric downtilt transmission assembly and the horizontal azimuth transmission assembly are independent and do not interfere, and the adjustment of the electric downtilt and the horizontal azimuth can be realized.
Drawings
In order to more clearly illustrate the technical solution of the present embodiment, the drawings needed to be used in the description of the embodiment will be briefly introduced below, and it is obvious that the drawings in the following description are one embodiment of the present invention, and it is obvious for those skilled in the art to obtain other drawings based on the drawings without creative efforts.
FIG. 1 is a control schematic diagram of a two-dimensional electrically tunable antenna according to the present invention;
fig. 2 is an overall schematic view of a two-dimensional electrically tunable antenna adjustment apparatus provided in an embodiment of the present invention;
fig. 3 is a schematic partially assembled view of a two-dimensional electrically tunable antenna adjustment apparatus according to an embodiment of the present invention;
fig. 4 is a schematic transmission diagram of a horizontal azimuth transmission assembly in the two-dimensional electrically tunable antenna adjustment apparatus according to the embodiment of the present invention;
fig. 5 is a schematic transmission diagram of an electrical downtilt transmission assembly in the two-dimensional electrically-tunable antenna adjustment apparatus provided in the embodiment of the present invention;
fig. 6 is a schematic structural diagram of a main shaft gear in the two-dimensional electrically tunable antenna adjusting device provided in the embodiment of the present invention;
fig. 7 is a schematic structural diagram of a reflection plate assembly in the two-dimensional electrically tunable antenna adjustment apparatus according to the embodiment of the present invention;
fig. 8 is a schematic diagram of a dc speed reduction motor in the two-dimensional electrically tunable antenna adjusting device provided in the embodiment of the present invention;
the reference numerals include:
1-electrically tunable antenna lower end cover assembly, 11-lower end cover, 12-horizontal azimuth controller, 13-electrical downtilt controller, 14-antenna housing;
2-lower fixed plate component, 21-lower fixed plate, 22-lower fixed seat, 23-middle supporting plate;
3-electric declination angle transmission component, 31-input shaft I, 32-input shaft I gear, 33-main shaft gear, 34-screw shaft gear, 35-screw shaft, 36-screw shaft bearing;
4-horizontal azimuth drive assembly. 41-input shaft II, 42-input shaft II bevel gear, 43-worm shaft bevel gear, 44-worm shaft, 45-worm gear, 46-worm shaft supporting block, 47-main shaft;
5-reflection plate component, 51-reflection plate, 52-screw rod fixing seat I, 53-screw rod fixing seat II, 54-slide block, 55-pull rod, 56-shifter;
6-an upper fixed plate component, 61-an upper fixed seat, 62-an upper fixed bearing, 63-an upper fixed plate;
71-motor input shaft, 72-disc, 73-Hall sensor, 74-motor, 75-reduction gearbox.
Detailed Description
The invention provides a two-dimensional electrically-regulated antenna adjusting device, which adopts a built-in pluggable structural form of a controller, in order to realize the built-in pluggable mode, the input end of the electric downtilt transmission is fixed, and the output end rotates at any time along with the adjustment of a horizontal position angle; the horizontal azimuth angle rotates to any position, the adjustment of the electric downtilt angle is not influenced, and the adjustment of the electric downtilt angle is not interfered.
The transmission part of the two-dimensional electrically-regulated antenna adjusting device mainly comprises gear transmission, and relates to straight gear transmission, bevel gear transmission, worm and worm gear transmission and thread transmission. Straight tooth transmission is directly input power to a transmission screw rod through two-stage gear engagement, and the screw rod and a sliding block convert circular motion into linear transmission through thread transmission, so that an antenna phase shifter assembly is driven to move, and the adjustment of an electrical downtilt is realized; the horizontal azimuth angle electrically-adjusted antenna controller realizes reversing of power through bevel gear transmission, realizes transmission with a large reduction ratio through worm and gear transmission, and simultaneously realizes self-locking, so that the precision and safety reliability of horizontal azimuth angle adjustment are improved. The two-dimensional electrically-adjusted antenna adjusting device provided by the invention has a compact structure, is convenient and reliable to realize, and can smoothly realize the adjustment of a horizontal azimuth angle and an electrical downtilt.
In order to improve the overall precision of the transmission device of the electrically-adjustable antenna, the transmission precision and the control precision are included, meanwhile, the cost is saved, and a direct current speed reducing motor with low cost is selected as the controller of the electrically-adjustable antenna, so that the horizontal azimuth angle and the electrical downtilt angle of the antenna can be adjusted with high precision. The control principle of the electrically-adjusted antenna controller is shown in fig. 1, a network management center sends an instruction to a controller driving chip of a corresponding ID serial number through RS485, the controller driving chip sends the instruction to a direct-current speed-reducing motor driving chip, and the direct-current speed-reducing motor driving chip sends a PWM pulse signal so as to drive a direct-current speed-reducing motor to rotate. The tail end of the direct current speed reducing motor is provided with the speed reducing gear box, so that a large speed reducing ratio can be realized, the direct current speed reducing motor outputs a circle of rotation, and a plurality of pulse signals can be obtained by the Hall sensor of the direct current speed reducing motor. Corresponding pulse signals in the rotating process of the direct-current speed reducing motor are fed back to the controller driving chip in real time, and the control process of the whole device is controlled in a closed-loop mode. And when the pulse number reaches the target pulse, sending an instruction to stop the work of the direct current speed reducing motor.
The design of cooperation transmission part can further improve the holistic precision level of two-dimensional electricity accent antenna. The horizontal azimuth adopts worm gear and worm transmission, and the large reduction ratio and the self-locking characteristic of the horizontal azimuth are utilized, so that the control precision of output is improved, and the transmission is efficient and reliable. The electric declination angle adopts thread transmission, and the rotary motion is converted into linear motion, so that the pulling of the phase shifter is realized, each rotation brings linear displacement of one thread pitch, and meanwhile, the transmission precision is also improved.
Generally, the two-dimensional electrically-adjustable antenna adjusting device provided by the invention is modular, simple and clear, high in transmission precision and control precision, safe, reliable, stable and efficient.
The purpose of the invention is realized as follows:
the invention provides a two-dimensional electric-tuning antenna adjusting device.A built-in pluggable assembly mode is adopted for an electric-tuning antenna controller, namely, the position of a power input shaft is required to be fixed, and the adjustment of a horizontal azimuth angle and an electric downtilt angle is realized by utilizing gear transmission conversion.
Antenna adjusting device is transferred to two-dimentional electricity includes: the lower end cover assembly of the electrically tunable antenna, a lower fixing plate assembly, an electrical downtilt transmission assembly, a horizontal azimuth transmission assembly, a reflection plate assembly and an upper fixing plate assembly.
The electrically-adjustable antenna controller is cascaded and networked and is controlled through a bus. The network management unit or the external input unit outputs a control signal through the RS485, and the control panel MCU controls the direct current speed reduction motor driving chip to send out a PWM signal to control the direct current speed reduction motor to rotate. Meanwhile, a disc of the direct current speed reducing motor is attached with a Hall sensor, and Hall signals of the direct current speed reducing motor can be fed back to a direct current speed reducing motor driving chip in the rotating process of the direct current speed reducing motor, so that closed-loop control of the whole device is realized. The pluggable controller of the electrically tunable antenna can respectively control the horizontal azimuth angle and the electrical downtilt angle.
Antenna overall structure, especially, adopt upper and lower fixed plate subassembly to connect, upper and lower fixed plate subassembly is equipped with corresponding plastic bearing, and antenna reflection board subassembly can realize the rotation of certain angle around the bearing central line, and in order to alleviate antenna weight, upper and lower fixed plate subassembly is fixed on glass steel antenna housing with M8 bolt, and glass steel antenna housing backplate thickness is 3.0mm, and its intensity of make full use of realizes connecting reliably.
The electric downtilt transmission assembly and the horizontal azimuth transmission assembly are positioned between the lower fixed plate assembly and the reflection plate assembly and are respectively used for controlling the electric downtilt and the horizontal azimuth.
Compared with the prior art, the two-dimensional electric tilt antenna has the advantages that firstly, the transmission part adopts gear transmission and is divided into horizontal azimuth angle bevel gear and worm gear transmission and electric downtilt gear transmission, the two-dimensional electric tilt antenna is independent and does not interfere, the pluggable controller of the two-dimensional electric tilt antenna is realized, and the traditional two-dimensional electric tilt antenna is built-in; secondly, the middle straight tooth transmission adopts a semicircular design to realize transition switching, so that the horizontal azimuth angle adjustment and the electric declination angle adjustment are independent and do not interfere; thirdly, the accurate adjustment of the horizontal azimuth angle and the electric declination angle, particularly the accurate adjustment of the horizontal azimuth angle, is realized by adopting a cheap direct current speed reducing motor and a corresponding control scheme and matching with gear transmission, thread transmission and worm and gear transmission.
The direct current gear motor and the Hall sensor are adopted in hardware design, the Hall sensor is fixed on the motor and close to the input end, a plurality of magnets are distributed on the circumference of a corresponding disc at equal intervals, namely, a plurality of pulse signals are generated when a circle is rotated, meanwhile, the reduction gear of the reduction gear box is large, namely, the output shaft of the direct current gear motor rotates for a circle, the Hall sensor obtains a plurality of pulse counts, corresponding pulse signals are fed back to the direct current gear motor for driving in real time, and when the pulse number reaches a target pulse, the direct current gear motor stops working.
Compared with the prior art, the invention has the following advantages and positive beneficial effects:
the horizontal azimuth angle is transmitted by using the worm and gear, and compared with the existing gear transmission, the effective self-locking can be realized, and the rotation caused by the arrangement of the horizontal azimuth angle is avoided; meanwhile, the large transmission ratio of the worm and gear can meet the precision requirement of angle adjustment. After the horizontal azimuth angle is adjusted, the reflecting plate is positioned at any position of +/-30 degrees, and the electric downtilt angle can be effectively adjusted at any position by utilizing the intermediate switching gear under the condition that the input shaft for adjusting the electric downtilt angle is fixed.
The electric tilt antenna controller in the two-dimensional electric tilt antenna adjusting device can realize high-precision feedback detection of matching of a direct current speed reducing motor and a Hall sensor, and the direct current speed reducing motor has the advantage of low cost; meanwhile, compared with a common two-dimensional electric tuning antenna, due to the advantages of gear transmission, the electric tuning antenna controller (comprising a direct-current speed reducing motor and a control panel) can be internally plugged and unplugged, and compared with a purely internally-arranged and unpluggable antenna controller of a motor, the electric tuning antenna controller is convenient to assemble, can be replaced according to actual use requirements, and avoids scrapping of a whole-face antenna due to the fault of the motor of the controller; compared with an external antenna controller, the invention fully utilizes the internal space of the antenna, saves the installation space of the end surface, reserves a lot of installation space for the antenna feeder, simultaneously, an antenna manufacturer can configure a proper electric tuning antenna controller according to the port frequency band information, the assembly is completed and the delivery is carried out along with the antenna, and the wrong assembly of site workers of a base station and the wrong configuration of parameter information can be effectively avoided.
The two-dimensional electric tilt antenna adjusting device provided by the invention greatly improves the automation degree of the electric tilt antenna network optimization, and the lower controller can conveniently adjust the electric tilt angle and the horizontal azimuth angle in real time according to the actual telephone traffic demand condition, thereby realizing more excellent signal coverage and network optimization. Meanwhile, the interchangeability of the electrically-adjustable antenna controller can be realized more importantly, the replacement is convenient, the maintenance cost is reduced, and the convenience and the flexibility of the control management of the electrically-adjustable antenna are improved.
In order to better understand the technical solution, the technical solution will be described in detail with reference to the drawings and the specific embodiments.
As shown in fig. 2 and fig. 3, a two-dimensional electrically tunable antenna adjusting device includes a lower end cover assembly 1 of an electrically tunable antenna, a lower fixed plate assembly 2, an electrical downtilt transmission assembly 3, a horizontal azimuth transmission assembly 4, a reflection plate assembly 5, and an upper fixed plate assembly 6. The lower end cover assembly 1 of the electrically tunable antenna comprises a lower end cover 11, a horizontal azimuth controller 12 and an electrical downtilt controller 13. The lower end cover 11 comprises a guide groove, the electrically-adjustable antenna controller comprises a direct current speed-reducing motor and a control panel, and the control panel is used for controlling the direct current speed-reducing motor to rotate. As shown in fig. 8, a motor 74 of the dc gear motor is provided with a hall sensor 73, a plurality of magnetic beads are equally arranged on a disc 72 connected with the motor input shaft 71, and a gear box 75 is arranged at the end of the motor 74 of the dc gear motor. For example, the disk 72 is designed with 6-8 magnetic columns. The output shaft of the motor 74 of the direct current speed reducing motor rotates for one circle to generate a plurality of pulse signals, the speed reducing ratio of the speed reducing gear box 75 of the direct current speed reducing motor is 130:1-150:1, the output rotates for one circle, the Hall sensor 73 obtains a plurality of pulses, and the requirement on the control precision can be met. The overall control precision will be further explained later in conjunction with the transmission part.
The lower fixing plate assembly 2 comprises a lower fixing plate 21, a lower fixing seat 22 and an intermediate support plate 23. The lower fixing plate 21 is a sheet metal part, the lower fixing seat 22 is an ABS plastic part, a plastic bearing is assembled between the lower fixing plate 21 and the lower fixing seat 22, the lower fixing plate 21 is connected with the lower fixing seat 22 through screws, the middle supporting plate 23 is connected with the lower fixing plate 21 through connecting studs, and the parallelism between the vertical plate of the lower fixing plate 21 and the middle supporting plate 23 is guaranteed. The intermediate support plate 23 mainly functions as a support transmission.
The electrical downtilt transmission assembly 3 includes an input shaft one 31, an input shaft one gear 32, a main shaft gear 33, a screw shaft gear 34, a screw shaft 35, and a screw shaft bearing 36. The first input shaft 31 is keyed to the first input shaft gear 32.
The horizontal azimuth drive assembly 4 includes a second input shaft 41, a second input shaft bevel gear 42, a worm shaft bevel gear 43, a worm shaft 44, a worm gear 45, a worm shaft support block 46, and a main shaft 47. The second input shaft 41 and the second input shaft bevel gear 42, the worm shaft bevel gear 43 and the worm shaft 44, the worm wheel 45 and the main shaft 47 are in key connection.
The reflection plate assembly 5 includes a reflection plate 51, a first screw fixing seat 52, a second screw fixing seat 53, a slider 54, a pull rod 55, and a shifter 56, as shown in fig. 7.
The upper fixing plate assembly 6 includes an upper fixing base 61, an upper fixing bearing 62, and an upper fixing plate 63.
The electric declination angle transmission assembly 3 and the horizontal azimuth angle transmission assembly 4 are supported by the lower fixing plate assembly 2, and a main shaft 47 of the horizontal azimuth angle transmission assembly 4 is fixed with a reflecting plate 51 of the reflecting plate assembly 5 by screws. Meanwhile, the other end of the reflecting plate 51 is connected with the upper fixing seat 61 of the upper fixing plate assembly 6 by screws. So that the reflection plate 51 can be rotated about the center line of the main shaft 47 and the upper fixing base 61. The lower fixed plate assembly 2 and the upper fixed plate assembly 6 are directly connected through the radome 14.
The antenna is the both ends mouth, and the cross-sectional dimension of antenna house 14 is not big, and the intensity of make full use of antenna house 14 is connected upper fixed plate subassembly 6 and bottom plate subassembly 2 on antenna house 14 to adopt the bolt fastening.
When the network management center sends out a control command, the electrical downtilt angle is adjusted. The direct current speed reducing motor of the electric downtilt controller 13 of the electric tilt antenna rotates to drive the input shaft one 31 to rotate, so that the input shaft one gear 32 is driven to rotate. As shown in FIG. 6, the spindle gear 33 is an outer ring gear, the inner ring is in contact with the shaft and is designed as a semicircular ring, the spindle gear 33 can rotate around the spindle 47 relatively circumferentially, the friction is low, and the design of the shaft shoulder of the spindle 47 only limits the axial displacement. With this design, the rotation of the input shaft-gear 32 causes the rotation of the driven wheel-main shaft-gear 33 through gear engagement, and smoothly transits to the rotation of the screw shaft-gear 34, and at this time, when the vertical azimuth angle is smoothly adjusted, the main shaft 47 is stationary, that is, when the vertical azimuth angle is adjusted, the horizontal azimuth angle is stationary, as shown in fig. 5, so that the power of the input shaft can be switched through the main shaft-gear 33, and transmitted to the screw shaft-gear 34 through two-stage gear engagement, and drives the screw shaft-gear 34 to rotate, thereby driving the screw shaft 35 to rotate. As shown in fig. 7, the screw shaft 35 is in threaded transmission connection with the slider 54, and can be converted into linear displacement of the slider 54 through rotation of the screw shaft 35, one end of the pull rod 55 is in screw fastening connection with the slider 54, the other end of the pull rod 55 is in snap connection with the shifter 56, and the linear displacement of the slider 54 drives the shifter to linearly displace, i.e., adjustment of the electrical downtilt angle and phase adjustment are realized. The screw transmission behind the electric declination angle transmission part is realized, the screw pitch is 2.5mm, the transmission input into the screw rotates for one circle, the phase shifter moves for 2.5mm, the phase shifting angle corresponding to the antenna is 0.5 degrees, the pulse number of the Hall sensor corresponding to the 0.5 degrees is more than one thousand, and therefore the error requirement of +/-0.1 degrees is completely realized.
When the radiation direction of the antenna needs to be adjusted in the center of the mesh tube, that is, the horizontal azimuth angle is adjusted, the direct current speed reduction motor of the horizontal azimuth angle controller 12 of the electrically adjustable antenna rotates to drive the second input shaft 41 to rotate, so as to drive the second input shaft bevel gear 42 to rotate, and the bevel gear can change the transmission direction of the space, as shown in fig. 4, through the meshing of the bevel gears, the second input shaft bevel gear 42 rotates to drive the worm shaft bevel gear 43 to rotate, so as to drive the worm shaft 44 to rotate, the worm shaft 44 drives the turbine 45 to rotate, so that the main shaft 47 rotates to drive the reflecting plate 51 to rotate at a certain angle, and thus, the adjustment of the horizontal azimuth angle is. The horizontal azimuth transmission adopts a bevel gear and a worm gear, and the reduction ratio is more than 30:1, the rotation angle is 360 degrees, and the number of pulses correspondingly controlled in each degree is about 100. Therefore, the requirement of +/-1 degree can be met.
The main shaft 47 connected with the lower end of the reflection plate 51 is the input end of the power, and the upper fixed seat 61 and the upper fixed bearing 62 at the upper end of the reflection plate 51 only play a role of supporting and guiding.
The worm and gear transmission has the advantages of self-locking performance and large transmission ratio, only one-way transmission is realized, the worm drives the worm, the worm cannot drive the worm, when the horizontal azimuth angle is adjusted to a certain position, the reflecting plate can be fixed and does not rotate, and the reliability is high.
It should be noted that the adjustment of the horizontal azimuth angle and the electrical downtilt angle do not interfere with each other. The adjustment of the electrical downtilt angle does not have any influence on the adjustment of the horizontal azimuth angle; however, when the horizontal azimuth angle is adjusted, the reflection plate rotates around the main shaft, and a gear of the input shaft is fixed, so that a screw connected with the reflection plate also rotates around the main shaft, the limit position is considered to be +/-30 degrees, the screw shaft gear 34 rotates 1/12 circles, the displacement for driving the phase shifter medium sheet to move is 0.2mm, and the displacement is completely negligible considering the transmission clearance. The adjustment of the horizontal azimuth angle and the electrical downtilt angle do not interfere with each other.
The two-dimensional electric tilt antenna adjusting device provided by the embodiment of the invention at least comprises the following technical effects:
in the embodiment of the application, the provided two-dimensional electrically-adjusted antenna adopts gear transmission, wherein the horizontal azimuth angle adopts bevel gear and worm gear transmission, the electric downtilt adopts gear transmission, and the adjustment of the horizontal azimuth angle and the electric downtilt is independent and does not interfere. The horizontal azimuth angle is transmitted by using the worm and gear, and compared with the existing gear transmission, the automatic locking device can realize effective self-locking and avoid rotation after the horizontal azimuth angle is set; meanwhile, the large transmission ratio of the worm and gear can meet the precision requirement of angle adjustment. Due to the advantages of the gear transmission, the built-in pluggable antenna controller can be realized. The built-in pluggable controller can avoid occupying the limited space of the end face of the antenna, does not influence the layout of the multi-port feeder line, can be conveniently disassembled and replaced, and has replaceability. In conclusion, the two-dimensional electric tilt antenna adjusting device provided by the invention greatly improves the automation degree of the electric tilt antenna network optimization, and the controller can conveniently adjust the electric tilt angle and the horizontal azimuth angle in real time according to the actual telephone traffic demand condition, thereby realizing better signal coverage and network optimization. More importantly, the interchangeability of the electric tuning antenna controller is realized, the replacement is convenient, the maintenance cost is reduced, and the convenience and the flexibility of the control management of the electric tuning antenna are improved.
Finally, it should be noted that the above embodiments are only for illustrating the technical solutions of the present invention and not for limiting, and although the present invention has been described in detail with reference to examples, it should be understood by those skilled in the art that modifications or equivalent substitutions may be made on the technical solutions of the present invention without departing from the spirit and scope of the technical solutions of the present invention, which should be covered by the claims of the present invention.
Claims (7)
1. The utility model provides an antenna adjusting device is transferred to two dimension electricity which characterized in that includes: the lower end cover assembly of the electrically tunable antenna, the electrical downtilt transmission assembly, the horizontal azimuth transmission assembly, the upper fixed plate assembly, the lower fixed plate assembly and the reflection plate assembly;
the lower end cover assembly of the electrically tunable antenna comprises a lower end cover, an electric downtilt controller and a horizontal azimuth controller, wherein the electric downtilt controller and the horizontal azimuth controller are inserted into the lower end cover;
the electric downtilt controller drives the electric downtilt transmission assembly, and the horizontal azimuth controller drives the horizontal azimuth transmission assembly;
the upper fixing plate assembly and the lower fixing plate assembly are both fixed on the antenna cover, and the reflecting plate assembly is positioned between the lower fixing plate assembly and the upper fixing plate assembly;
the electric declination angle transmission assembly and the horizontal azimuth angle transmission assembly are both positioned between the lower fixed plate assembly and the reflection plate assembly;
the horizontal azimuth transmission assembly comprises bevel gear transmission and worm gear transmission, and the electric downtilt transmission assembly comprises gear transmission and screw transmission;
the horizontal azimuth angle transmission assembly comprises a second input shaft, a second input shaft bevel gear, a worm shaft, a worm wheel, a worm shaft supporting block and a main shaft;
the input shaft II is connected with the input shaft II bevel gear, the input shaft II bevel gear is meshed with the worm shaft bevel gear, the worm shaft bevel gear is connected with the worm shaft, the worm shaft is meshed with the turbine, and the worm gear is connected with the main shaft; the worm shaft supporting blocks are positioned at two ends of the worm shaft.
2. The two-dimensional electrically-adjustable antenna adjusting device according to claim 1, wherein the electrical downtilt transmission assembly comprises a first input shaft, a first input shaft gear, a main shaft gear, a screw shaft and a screw shaft bearing;
the first input shaft is connected with the first input shaft through a gear, the first input shaft gear is meshed with the main shaft gear, the main shaft gear is meshed with the screw shaft gear, the screw shaft gear is connected with the screw shaft, and the screw shaft is connected with the screw shaft through a bearing;
the inner ring of the main shaft gear is a semicircular ring, and the main shaft gear is connected with the main shaft.
3. The two-dimensional electrically-adjustable antenna adjusting device according to claim 2, wherein the reflection plate assembly comprises a reflection plate, a first screw fixing seat, a second screw fixing seat, a sliding block, a pull rod and a phase shifter;
two ends of the pull rod are respectively connected with the sliding block and the phase shifter; the sliding block is connected with the screw shaft, and the first screw fixing seat and the second screw fixing seat are respectively positioned at two ends of the screw shaft; the reflection plate is connected with the main shaft.
4. The two-dimensional electrically adjustable antenna adjusting device according to claim 3, wherein the upper fixing plate assembly comprises an upper fixing seat, an upper fixing bearing and an upper fixing plate;
the upper fixing seat is connected with the reflecting plate, and the upper fixing bearing is respectively connected with the upper fixing seat and the upper fixing plate.
5. The two-dimensional electrically adjustable antenna adjusting device according to claim 4, wherein the lower fixing plate assembly comprises a lower fixing plate, a lower fixing seat and an intermediate support plate;
the lower fixing plate is connected with the lower fixing seat, and the middle supporting plate is connected with the lower fixing plate.
6. The adjusting device of the two-dimensional electrically-regulated antenna according to claim 1, wherein the electrical downtilt controller and the horizontal azimuth controller both employ a direct-current speed reduction motor.
7. The two-dimensional electrically-regulated antenna adjusting device according to claim 6, wherein an input shaft of a motor of the direct-current speed reduction motor is provided with a Hall sensor, a plurality of magnetic beads are equally arranged on a disc connected with the input shaft of the motor, and a speed reduction gear box is arranged at the tail end of the motor of the direct-current speed reduction motor.
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| CN109449598B (en) * | 2018-10-26 | 2021-01-22 | 京信通信技术(广州)有限公司 | Inclination angle adjusting method and corresponding device of electrically-tuned antenna |
| CN109128675A (en) * | 2018-11-09 | 2019-01-04 | 张家港江苏科技大学产业技术研究院 | A kind of positioner |
| CN109659696B (en) * | 2018-12-17 | 2020-07-07 | 京信通信技术(广州)有限公司 | Antenna, adjusting device for adjusting horizontal azimuth angle of antenna and transmission mechanism |
| CN109768391B (en) * | 2018-12-29 | 2020-12-15 | 京信通信技术(广州)有限公司 | Antenna, antenna electric downtilt display system and transmission mechanism thereof |
| CN110690572B (en) * | 2019-09-12 | 2020-11-24 | 广东盛路通信科技股份有限公司 | Antenna inclination angle adjusting control method based on STM32F0 microcontroller |
| CN110600883B (en) * | 2019-09-17 | 2021-03-12 | 武汉虹信通信技术有限责任公司 | Phase shifter driving device and electrically tunable antenna |
| CN112768940B (en) * | 2020-12-31 | 2023-09-29 | 佛山市迪安通讯设备有限公司 | Antenna with built-in horizontal and vertical dip angle adjusting mechanisms |
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| CN102496769A (en) * | 2011-11-14 | 2012-06-13 | 武汉虹信通信技术有限责任公司 | Transmission device for two-dimensional electrically controlled antenna |
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| US20140365640A1 (en) * | 2013-06-06 | 2014-12-11 | Zih Corp. | Method, apparatus, and computer program product for performance analytics determining location based on real-time data for proximity and movement of objects |
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