CN102738554A - Mobile miniature antenna servo system - Google Patents

Abstract

The invention discloses a mobile miniature antenna servo system, which comprises an antenna elevation device, an azimuth driving device, a horizontal adjustment platform and a support accessory. During erection, the horizontal adjustment platform is firstly fixed on a tripod of the support accessory, then a mounting support in integrated equipment of the antenna elevation device and the azimuth driving device is fixed on the horizontal adjustment platform, and finally an external connection cable is connected, so that the erection of the mobile miniature antenna servo system is completed. The mobile miniature antenna servo system has the advantages of small size, light weight and convenience in erection, dismounting, storage and carrying.

Description

A Mobile Miniature Antenna Servo System

technical field

The invention relates to an antenna servo system, in particular to a mobile miniature antenna servo system.

Background technique

Antenna servo systems are widely used in radio equipment that radiates and receives electromagnetic waves, and are mainly used in related fields such as broadcasting, communication, astronomy, meteorology, navigation, aviation, aerospace, and national defense. According to its use and mobility requirements, antenna servo systems can be divided into two categories: fixed and mobile. The mobile antenna servo system is not always fixed in a certain place when in use, but needs to be moved, disassembled, transported and erected frequently. Therefore, the mobile antenna servo system is not only required to be small in size and light in weight, but also has strict requirements on the quickness and convenience of its erection and disassembly.

For the mobile micro-antenna servo system, in addition to the electrical performance requirements, it must also meet the mechanical performance, and it should be easy to maintain, erect, disassemble and carry. To meet the mechanical performance requirements means to ensure that the antenna servo system should have sufficient strength and rigidity, and to facilitate erection and disassembly means that the antenna servo system is required to be light in weight, small in size, and able to be assembled and disassembled quickly.

With the continuous development of modern microwave communication technology, on the one hand, the higher the precision of the antenna servo system, the better; The antenna servo system obtained by the traditional design method is characterized by large structural size and weight, and complicated erection and disassembly.

Contents of the invention

The technical problem to be solved by the present invention is to provide a mobile miniature antenna servo system which is convenient for erection, disassembly and carrying.

The mobile micro-antenna servo system of the present invention includes an antenna pitching device, an azimuth transmission device, a horizontal adjustment platform and a supporting accessory, wherein:

The supporting accessories include support frames and cables;

The azimuth transmission device includes an upper casing and a lower casing with an open bottom, the bottom of the upper casing is fixedly connected to the top of the lower casing; a mounting bracket is provided in the lower casing, and the mounting bracket passes through a horizontal The adjusting pan/tilt is installed on the supporting frame of the supporting accessory, and an azimuth shaft is installed on the mounting bracket, and the azimuth shaft passes through the lower casing and extends into the upper casing, and a slewing bearing and a slip ring are sequentially set on the azimuth shaft , the top of the azimuth shaft is connected with the azimuth encoder through a coupling; the inner ring of the slewing bearing is fixedly connected with the flange fixed on the lower housing, and the azimuth gear is set on the outer ring of the slewing bearing. The azimuth gear and the outer ring of the slewing bearing are fixed on the mounting bracket through fasteners; the motor-reducer integrated machine and the control circuit board are installed on the lower housing, and the output shaft of the motor-reducer integrated machine is connected by a flat key A gear is installed, and the gear meshes with the aforementioned azimuth gear after the shaft end is axially fixed by a baffle; the rotor of the diversion ring is connected with the diversion ring bracket, and the diversion ring bracket is fixed on the lower casing. The rotor of the azimuth encoder is connected to the azimuth encoder bracket, and the azimuth encoder bracket is fixedly connected to the slip ring bracket;

The antenna pitching device includes a frame, the lower end of the frame has an opening recessed into the frame, and the azimuth transmission device is placed in the above opening; an electric push rod, a first pitch axis, a second Two pitch shafts and pitch encoders, wherein the push rod that forms the electric push rod is connected to one end of the first pitch shaft through a crank, and the other end of the first pitch shaft passes through the frame and extends into the upper housing of the azimuth transmission device and is fixed on the inner wall of the upper casing; the second pitch axis is set on the frame at a position opposite to the first pitch axis and remains coaxial with the first pitch axis, and one end of it is fixed on the upper casing of the azimuth transmission device The other end passes through the upper shell and the frame and is connected to the pitch encoder through a coupling; the rotor of the pitch encoder is connected to the pitch encoder bracket, and the pitch encoder bracket is fixed on the frame.

In the azimuth transmission device of the above technical solution, it is preferable to set up an installation groove on the installation bracket, and then install a pressure plate covering the installation groove on the installation bracket, and then install the azimuth shaft on the pressure plate to facilitate the rotation of the slewing bearing. Mounting with flange.

In the azimuth transmission device of the above technical solution, an inspection hole can also be opened on the upper end surface of the upper casing corresponding to the installation position of the motor reducer integrated machine, and an upper cover plate can be installed on the inspection hole, so as to facilitate the integration of the motor reducer machine overhaul.

In the azimuth transmission device of the above technical solution, in order to keep the parts in the lower casing from being eroded by wind and sand, a bottom cover plate can be provided at the bottom of the lower casing, and the bottom cover plate is fixedly connected with the lower casing, preferably A sealing plate is installed between the two to achieve a better sealing effect; a through hole is opened on the bottom cover plate, and the clearance fits between the through hole and the mounting bracket, so that the mounting bracket can be installed from the Through the through hole, it can protect the parts in the lower shell from wind and sand erosion to the greatest extent.

In the antenna pitching device of the above-mentioned technical solution, it is preferable to have several support plates for installing equipment such as electric push rods inside the frame, and the push rods in the electric push rods are installed on one of them through hinge supports. Support board.

In the above technical solution, the support frame is usually a tripod. The control circuit board mainly controls various movements of the antenna frame in azimuth and elevation.

The upper shell, the lower shell and the frame are all made of aluminum alloy.

In the above-mentioned technical solution, the described horizontal adjustment platform includes a mounting plate, three adjusting screw rods are fixed on the mounting plate, each adjusting rod is provided with upper and lower adjusting nuts, and the installation in the azimuth transmission device The bracket is installed on the adjusting screw rod and the system is leveled by adjusting the upper and lower adjusting nuts; it is better to set an angle plate between each adjusting screw rod and the mounting plate to strengthen the rigidity of the horizontal adjustment head.

Compared with prior art, the present invention is characterized in that:

1. The azimuth transmission device adopts the integration of motor reducer, slewing bearing and transmission device, which can reduce the weight and volume to the greatest extent, and has high transmission precision, stable transmission, large output torque, low noise and high reliability;

2. The upper and lower shells are made of aluminum alloy plates, which can withstand greater gravity. At the same time, there are inspection covers in several directions, which is convenient for installation, disassembly and maintenance;

3. The servo mechanism and control circuit are all integrated in the azimuth transmission device, which has a high degree of integration and reduces the number of external interface cables, which not only reduces the weight, but also improves the stability of the system;

4. The azimuth encoder and the pitch encoder are directly installed on the azimuth axis and the pitch axis respectively, which saves a set of complex anti-backlash mechanism. While improving the accuracy, the volume of the system is minimized and the weight of the system is reduced .

Description of drawings

Fig. 1 is the structural representation of an embodiment of the mobile micro-servo system of the present invention;

Fig. 2 is a structural schematic diagram of the antenna pitching device in the embodiment shown in Fig. 1 with the rear cover opened;

Fig. 3 is a schematic structural view of the azimuth transmission device in the embodiment shown in Fig. 1;

Fig. 4 is a cross-sectional view of the horizontal adjustment platform in the embodiment shown in Fig. 1;

Fig. 5 is a top view of the horizontal adjustment platform in the embodiment shown in Fig. 1 .

The labels in the figure are:

1. Antenna pitching device; 2. Azimuth transmission device; 3. Horizontal adjustment of the head; 4. Supporting accessories; 5. Pitching encoder; 6. Pitching encoder bracket; 7. Coupling; 11 electric push rod; 12 crank; 13 first pitch axis; 14 support plate; 15 pressure plate; 16 azimuth shaft; 17 bushing; 18 azimuth gear; Flange plate; 24 upper shell; 25 motor reducer integrated machine; 26 upper cover plate; 27 orientation encoder; 28 mounting bracket; 29 lock nut; 30 orientation encoder bracket; 33 control circuit board; 34 upper outer ring; 35 inner ring; 36 steel ball; 37 bottom cover plate; 38 lower outer ring; 39 installation hole; 40 adjustment screw; 41 upper adjustment nut; 42 lower adjustment nut; 43 angle plate; 44 mounting plate.

Detailed ways

As shown in Figures 1 to 5, the mobile micro-antenna servo system of the present invention includes an antenna pitch device 1, an azimuth transmission device 2, a horizontal adjustment platform 3 and a supporting accessory 4, wherein:

Described supporting accessory 4 comprises tripod and cable etc.;

The azimuth transmission device 2 is specifically shown in Figure 3, it includes an upper casing 24 and a lower casing 22 with open bottoms, made of aluminum alloy material, the bottom of the upper casing 24 is connected to the lower casing. The top of casing 22 is fixedly connected; In lower casing 22, be provided with mounting bracket 28, this mounting bracket 28 is installed on the tripod of described supporting accessory 4 by level adjustment cloud platform 3, offers a mounting groove and on mounting bracket 28 Three mounting holes 39, a pressing plate 15 covering the mounting groove is installed on the mounting bracket 28, an azimuth shaft 16 is installed on the pressing plate 15, and the azimuth shaft 16 passes through the lower housing 22 and extends into the upper housing 24 , on the azimuth shaft 16, a slewing bearing and a slip ring 31 are sequentially set from one end close to the pressure plate 15, and the top of the azimuth shaft 16 is connected with the azimuth encoder 27 through a coupling 7; the slewing bearing is mainly composed of an inner ring 35 , outer ring, steel ball 36 and bushing 17, wherein the outer ring is composed of upper outer ring 34 and lower outer ring 38, steel balls 36 are respectively located in inner ring 35 and upper outer ring 34 and inner ring 35 and lower outer ring 38 The bush 17 is placed between the upper outer ring 34 and the lower outer ring 38, and the three are fixed together by bolts; the inner ring 35 of the slewing bearing is fixed to the flange 23 fixed on the lower housing 22 connection, the azimuth gear 18 is set on the outer ring of the slewing bearing, and the azimuth gear 18 and the outer ring of the slewing bearing are fixed on the mounting bracket 28 by fasteners; a motor reducer integrated machine is arranged inside the upper casing 24 25 and the control circuit board 33, specifically, the motor-reducer integrated machine 25 and the control circuit board 33 are respectively fixed on the lower housing 22 on both sides of the azimuth shaft 16, and the output shaft of the motor-reducer integrated machine 25 passes through the flat key A gear 20 is connected, and the gear 20 meshes with the aforementioned azimuth gear 18 after the shaft end is axially fixed by the baffle plate 19; the rotor part of the slip ring 31 is connected with the slip ring bracket 32, and the slip ring bracket 32 Fixed on the lower housing 22, the stator part of the slip ring 31 is connected with the azimuth shaft 16, and the slip ring 31 is axially fastened with the lock nut 29 at the end of the slip ring 31; the rotor of the azimuth encoder 27 Part is connected with the azimuth encoder bracket 30, and the azimuth encoder bracket 30 is fixedly connected on the support of the slip ring 31 to ensure that the azimuth encoder 27 and the rotor part of the slip ring 31 move synchronously; on the upper end surface of the upper casing 24 An inspection hole is provided at the corresponding place where the motor reducer integrated machine 25 is installed, and an upper cover plate 26 is installed on the inspection hole to facilitate the maintenance of the motor reducer integrated machine 25; a bottom cover plate 37 is set at the bottom of the lower housing 22, so The bottom cover 37 is fixedly connected with the lower casing 22, and a sealing plate 21 is installed between the bottom cover 37 and the lower casing 22 to achieve a better sealing effect; a through hole is set in the middle of the bottom cover 37, The gap fits between the through hole and the mounting bracket 28, so that the azimuth transmission device 2 becomes a relatively closed whole, which plays the role of waterproof, dustproof, sandproof and salt spray proof;

Described antenna pitching device 1 is specifically shown in Figure 2, and it comprises a frame body that aluminum alloy material is made, and described frame body is made up of frame 10 and back cover, and the lower end of frame 10 has a concave toward frame 10 interior. The azimuth transmission device 2 is placed in the opening, and an antenna is fixedly installed on the side of the frame 10 without opening; inside the frame 10, there are several installation devices (such as electric push rods 11, etc. ) support plate 14, an electric push rod 11, a first pitch shaft 13, a second pitch shaft 8 and a pitch encoder 5 are also provided in the frame 10, and the electric push rod 11 is installed on the frame through a hinge support 9 On a support plate 14 in 10, the push rod that constitutes the electric push rod 11 is connected to one end of the first pitch shaft 13 through the crank 12, and the other end of the first pitch shaft 13 passes through the frame 10 and extends into the azimuth transmission device 2 and fixed on the inner wall of the upper casing 24; the second pitch axis 8 is arranged at a position opposite to the fixed position of the first pitch axis 13 on the frame 10 and connected to the first pitch axis 13 Keep coaxial, one end is fixed on the inner wall of the upper casing 24 of the azimuth transmission device 2, and the other end passes through the upper casing 24 and the frame 10 and is connected with the pitch encoder 5 through the coupling 7; the pitch encoder The rotor part of 5 is connected with the pitch encoder bracket 6, and the pitch encoder bracket 6 is fixed on the frame 10, between the first pitch axis 13 and the frame 10, between the second pitch axis 8 and the frame 10 are connected by bearings;

Described horizontal adjustment cloud platform 3 as shown in Figure 4～5, comprises a mounting plate 44, and this mounting plate 44 is fixed on the tripod by screw rod, nut, is fixedly provided with three adjusting screw rods 40 on the mounting plate 44, each adjusting Screw rods 40 are provided with upper adjustment nuts 41 and lower adjustment nuts 42, and the mounting bracket 28 in the azimuth transmission device 2 is installed on the described adjustment screw rods 40 through the mounting holes 39 thereon and adjusted by adjusting the upper adjustment nuts 41. And the lower adjustment nut 42 makes the antenna pitching device 1 and the azimuth transmission device 2 integrated equipment in a horizontal state; it is preferable to set a corner plate 43 between each adjustment screw 40 and the mounting plate 44 to strengthen the rigidity of the horizontal adjustment platform 3.

During the specific production, the antenna pitching device 1 and the azimuth transmission device 2 are usually first assembled into one body. When erecting, the mounting plate 44 in the horizontal adjustment pan/tilt 3 is first placed on the tripod, and locked and fixed with a screw rod and a nut. Take off the upper adjustment nut 41 on each adjusting screw rod 40 in the horizontal adjustment platform 3 afterwards, then place the mounting hole 39 on the mounting bracket 28 in the antenna pitch device 1 and the azimuth transmission device 2 integrated equipment to the horizontal adjustment platform 3 Then install the two upper adjusting nuts 41 that have been removed, and adjust the height of the lower adjusting nuts 42 to make the system (integrated equipment of antenna pitching device 1 and azimuth transmission device 2) reach the level, and then adjust the upper The nut 41 is locked to realize the fastening of the integrated equipment of the antenna pitching device 1 and the azimuth transmission device 2, and finally the external connecting cable is connected to complete the erection of the mobile micro servo system of the present invention.

The dismantling process is opposite to the erecting process. First remove the external connecting cables, then remove the upper adjustment nuts 41 on each adjustment screw 40, then remove the antenna pitch device 1 and the azimuth transmission device 2 integrated equipment, and then adjust the horizontal adjustment cloud. The table 3 is removed, and finally the upper adjustment nuts 41 are put back on each adjustment screw 40, and the disassembly and collection of the mobile micro-servo system of the present invention is completed. The carrying is divided into two parts: first put the antenna pitch device 1 and the azimuth transmission device 2 into one backpack, then put the leveling pan/tilt 3 and support attachment 4 into another backpack, and finally fasten the two backpacks Together, the carrying of the mobile micro-servo system of the present invention is completed.

When working, the working principle of the azimuth transmission device 2 is as follows:

After energizing, the motor-reducer integrated machine 25 starts to drive the gear 20 to move. Since the gear 20 meshes with the azimuth gear 18, and the azimuth gear 18 and the outer ring of the slewing bearing are fixed on the mounting bracket 28, the outer ring of the slewing bearing and the outer ring of the slewing bearing are fixed on the mounting bracket 28. The azimuth gears 18 are all stationary, so the gears 20 rotate around the azimuth gears 18; and the motor reducer integrated machine 25 is fixed on the lower casing 22, and the lower casing 22 is connected with the upper casing 24, and the flange plate One end of 23 is fixed on the lower casing 22, and the other end is fixed on the inner ring 35 of the slewing bearing. Due to the movement of the gear 20, the inner ring 35 of the slewing bearing moves, driving the upper casing 24 and the lower casing 22 to move, and the upper casing The body 24 is connected with the antenna pitching device 1, and then drives the antenna frame 10 of the antenna pitching device 1 to perform a 360° rotation in azimuth.

The azimuth shaft 16 is fixed on the mounting bracket 28 through the pressure plate 15, and is fixed during operation. The stator part of the slip ring 31 mounted on it is connected with the azimuth shaft 16, and the rotor part of the slip ring 31 is connected with the slip ring bracket 32. 31 is fastened to the axial direction of the slip ring 31 with a lock nut 29, and the slip ring bracket 32 is connected with the lower casing 22, so the connecting part of the slip ring 31 and the azimuth shaft 16 is not moving, but the flow The ring bracket 32 rotates with the rotation of the lower housing 22; the azimuth encoder 27 installed on the shaft end of the azimuth shaft 16, its stator part is connected with the shaft coupling 7, and its rotor part is connected with the azimuth encoder bracket 30, The azimuth encoder bracket 30 is connected with the bus ring 31 bracket together, therefore, the rotor of the azimuth encoder 27 and the rotor part of the bus ring 31 move synchronously.

The working principle of the antenna pitching device 1 is as follows:

After electrification, the motor that makes up the electric push rod 11 starts, and the push rod of the electric push rod 11 performs a linear reciprocating motion through the hinge support 9, and the linear motion is converted into an angular motion by the crank 12. Because the first pitch axis 13 and the second pitch axis One end of the pitch shaft 8 is respectively fixed on the inner walls on both sides of the upper casing 24 of the azimuth transmission device 2, so the first pitch shaft 13 and the second pitch shaft 8 are fixed when pitching; and the first pitch shaft 13. The second pitch axis 8 and the frame 10 are connected by bearings. Therefore, when the crank 12 moves, the frame 10 moves around a pitch axis 13 and the second pitch axis 8 through the bearings on both sides. The coupling 7 connects the stator of the pitch encoder 5 with the second pitch shaft 8 , and the rotor part of the pitch encoder 5 is fixed on the frame 10 by the pitch encoder bracket 6 and moves synchronously with the frame 10 .

Claims (9)

1. a moving miniature antenna servo system comprises antenna elevation mount (1), azimuth drive (2), horizontal adjustment The Cloud Terrace (3) and Holder Fasteners (4), it is characterized in that:

Described Holder Fasteners (4) comprises bracing frame and cable;

Described azimuth drive (2) comprises that the bottom is uncovered upper shell (24) and lower house (22), and the bottom of said upper shell (24) is fixedly connected with the top of lower house (22); In lower house (22), be provided with mounting bracket (28); This mounting bracket (28) is installed on the bracing frame of said Holder Fasteners (4) through horizontal adjustment The Cloud Terrace (3); Azimuth axis (16) is installed on mounting bracket (28); This azimuth axis (16) passes lower house (22) and stretches in the upper shell (24), on azimuth axis (16), is set with floating bearing and collector ring (31) successively, and the top of azimuth axis (16) is connected with azimuth encoder (27) through coupling (7); The interior ring (35) of said floating bearing is fixedly connected with ring flange (23) on being fixed in lower house (22); On the outer shroud of floating bearing, be set with azimuth gear (18), the outer shroud of described azimuth gear (18) and floating bearing is fixed on the mounting bracket (28) through securing member; Motor reducer all-in-one (25) and control circuit board (33) are installed on lower house (22); Through the flat key connection one gear (20) is housed on the output shaft of said motor reducer all-in-one (25), this gear (20) is meshed with aforesaid azimuth gear (18) after axle head carries out axial restraint through baffle plate (19); The rotor of said collector ring (31) is connected with collector ring support (32); This collector ring support (32) is fixed on the lower house (22); The rotor of said azimuth encoder (27) is connected with azimuth encoder support (30), and described azimuth encoder support (30) is fixedly connected on the collector ring support (32);

Described antenna elevation mount (1) comprises a framework (10), and the lower end of framework (10) has one to the inner recessed opening of framework (10), and described azimuth drive (2) places above-mentioned opening; In framework (10), be provided with electric pushrod (11), first pitch axis (13), second pitch axis (8) and pitching encoder (5); The push rod of wherein forming electric pushrod (11) is connected with an end of first pitch axis (13) through crank (12), and the other end of this first pitch axis (13) passes framework (10), and to stretch into the upper shell (24) of azimuth drive (2) interior and be fixed on the inwall of upper shell (24); Said second pitch axis (8) is arranged at framework (10) and upward the opposite position of position is set and keeps coaxial with first pitch axis (13) with first pitch axis (13); The one of which end is fixed on the inwall of upper shell (24) of azimuth drive (2), and the other end passes upper shell (24) and is connected through the stator of coupling (7) with pitching encoder (5) with framework (10); The rotor of said pitching encoder (5) is connected with pitching encoder support (6), and this pitching encoder support (6) is fixed on the described framework (10).

2. moving miniature antenna servo system according to claim 1; It is characterized in that: in the azimuth drive (2); Described mounting bracket offers mounting groove on (28); The pressing plate (15) that covers said mounting groove is installed on mounting bracket (28), and described azimuth axis (16) is installed on this pressing plate (15).

3. moving miniature antenna servo system according to claim 1; It is characterized in that: in the azimuth drive (2); Corresponding position with motor reducer all-in-one (25) installation site on the upper surface of upper shell (24) has manhole, and upper cover plate (26) is installed on the described manhole.

4. moving miniature antenna servo system according to claim 1; It is characterized in that: in the azimuth drive (2); The bottom of said lower house (22) is provided with bottom plate (37), on bottom plate (37), offers through hole, matched in clearance between described through hole and the mounting bracket (28).

5. moving miniature antenna servo system according to claim 1; It is characterized in that: in the antenna elevation mount (1); Be provided with several support plates that is used for erection unit (14) in framework (10) inside, the push rod of said composition electric pushrod (11) is installed on one of them support plate (14) through rocker bar bearing (9).

6. according to each described moving miniature antenna servo system in the claim 1～5, it is characterized in that: described bracing frame is a tripod.

7. according to each described moving miniature antenna servo system in the claim 1～5, it is characterized in that: described upper shell (24), lower house (22) and framework (10) all adopt aluminum alloy materials to make.

As claimed in any of claims 1 to 5 a miniature antenna of the mobile-type servo system, characterized by: horizontal adjustment head (3) comprises a mounting plate (44), the mounting plate (44) is fixedly arranged on There are three adjusting screw (40), each adjusting rod has on Gay, the adjusting nut (41, 42), said azimuth drive means (2) of the mounting bracket (28) mounted on said adjusting screw ( 40) and by adjusting the lower adjusting nut (42) so that the system reaches levels.

9. moving miniature antenna servo system according to claim 8 is characterized in that: between each adjusting screw(rod) (40) and mounting panel (44), be connected with gusset (43).

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