CN213240487U

CN213240487U - Double-polarization phased array weather radar azimuth turntable

Info

Publication number: CN213240487U
Application number: CN202021385131.3U
Authority: CN
Inventors: 张云; 付亚鹏; 解妍琼; 韩月琪; 寇正; 李秀萍; 姜敏
Original assignee: National University of Defense Technology
Current assignee: National University of Defense Technology
Priority date: 2020-07-15
Filing date: 2020-07-15
Publication date: 2021-05-18
Anticipated expiration: 2030-07-15

Abstract

The utility model relates to a dual-polarization phased array weather radar azimuth turntable, which comprises a base and a rotary table arranged on the base, wherein a mounting plate is fixed on the rotary table; a bearing gear is coaxially and fixedly installed on the base, the bearing gear is coaxially connected with a photoelectric slip ring, and the photoelectric slip ring extends out of the rotary table; the mounting plate is provided with an azimuth driving motor, an azimuth locking mechanism and an azimuth transmitter, and the azimuth driving motor is meshed with the bearing gear through a driving gear to form transmission; a group of data gears are arranged between the azimuth driving motor and the bearing gear and are used for measuring the axial return difference value of the azimuth driving motor; the azimuth locking mechanism is composed of bolts controlled by cylinders, a circle of bolt holes are formed in the shaft surface of the bearing gear, under the locking state, the bolts penetrate through the mounting plate and stretch into the bolt holes, and the rotary table can be quickly locked and unlocked according to the scheme, so that the stability of the antenna radar in the transfer process is guaranteed.

Description

Double-polarization phased array weather radar azimuth turntable

Technical Field

The utility model relates to an antenna field, concretely relates to dual polarization phased array weather radar position revolving stage.

Background

The traditional weather radar is generally fixedly installed, however, in actual combat, the weather radar is required to be freely movable, and rapid arrangement is required to achieve the requirement of rapid response. In order to solve the technical problem, the most common solution at present is a radar vehicle, namely, a radar is erected on the vehicle, and the transfer of a radar detection point is realized through the movement of the vehicle. Although the vehicle solves the problem of rapid movement of the radar, in actual needs, adjustment of a horizontal azimuth angle of the radar is designed, a traditional radar azimuth rotating platform is generally driven by a motor, and the radar has the disadvantages that the traditional rotating platform is braked by a cylinder, and if the vehicle bumps in the process of traveling, an antenna array rotates, so that the damage of an antenna array surface can be caused.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to overcome prior art not enough, provide a bipolarization phased array weather radar position revolving stage, can realize the quick locking and the unblock of revolving stage to guarantee the stability in the antenna radar transportation.

The purpose of the utility model is realized through the following technical scheme:

a dual-polarization phased array weather radar azimuth turntable, comprising:

the rotary table is arranged on the base, and an installation plate is fixed on the rotary table;

a bearing gear is coaxially and fixedly installed on the base, the bearing gear is coaxially connected with a photoelectric slip ring, and the photoelectric slip ring extends out of the rotary table;

the mounting plate is provided with an azimuth driving motor, an azimuth locking mechanism and an azimuth transmitter, and the azimuth driving motor is meshed with the bearing gear through a driving gear to form transmission;

a group of data gears are arranged between the azimuth driving motor and the bearing gear and are used for measuring the axial return difference value of the azimuth driving motor;

the azimuth locking mechanism is composed of bolts controlled by cylinders, a circle of bolt holes are formed in the shaft surface of the bearing gear, and the bolts penetrate through the mounting plate and extend into the bolt holes in a locking state.

Compare with traditional revolving stage, this scheme sets up the bearing gear that the diameter is great on the base fixedly, with on drive gear fixed mounting panel for during the rotation, thereby drive gear drives the revolving platform rotation around bearing gear rotation, and its rotation is more steady under this transmission mode, and required moment is also littleer. All be drive gear (i.e. the driving gear who is connected with the motor) fixed under the traditional mode, and drive gear generally less consequently needs great moment, and this scheme is reversed its way, sets up its transposition to reduce moment, make and rotate more steadily. Meanwhile, the shaft surface of the bearing gear is large, so that a bolt can be directly inserted into the shaft surface of the bearing gear to complete fixation, and the bolt driven by the cylinder can complete quick fixation of the rotary table, thereby facilitating transportation and installation.

Furthermore, a plurality of screws are arranged on the mounting plate, and in a locking state, the screws penetrate through the mounting plate and are inserted into the shaft surface of the bearing gear, so that the stability in the locking state can be further enhanced by designing the screws.

Further, a speed reduction ratio of 35 is arranged between the azimuth driving motor and the driving gear: 1 of a speed reducer.

Furthermore, the joint of the rotary table and the base adopts a labyrinth structure to form a waterproof structure, and the joint of the base and the rotary table is designed to be annular so that the base and the rotary table can rotate relatively.

Furthermore, evenly distributed screw holes are formed in the edge of the rotary table and used for installing the case.

The utility model has the advantages that: compare with revolving stage under the traditional mode, the required moment of this scheme rotation in-process utilizes the less principle of driving gear to make it rotate to guarantee promptly at the uniform velocity steady rotation, still increased the locking structure of revolving platform simultaneously, make it can lock under arbitrary angle, guarantee not influenced by vibration or wind-force under transportation or the user state, guarantee its monitoring effect.

Drawings

Fig. 1 is a schematic plan view of the present invention;

FIG. 2 is a cross-sectional view taken along line A-A of FIG. 1;

FIG. 3 is a cross-sectional view taken along line B-B of FIG. 1;

FIG. 4 is a cross-sectional view taken along line C-C of FIG. 1;

fig. 5 is a schematic view of a waterproof structure between the base and the turntable.

Detailed Description

The technical solution of the present invention is described in further detail below with reference to the accompanying drawings, but the scope of the present invention is not limited to the following description.

As shown in fig. 1-4, a dual-polarization phased array weather radar azimuth turntable comprises a base 1 and a rotary table 2 arranged on the base 1, wherein the base 1 and the rotary table 2 are installed in a spigot structure, a labyrinth groove is formed at the joint of the base 1 and the rotary table 2 to serve as a waterproof structure, the base 1 and the rotary table 2 are in an annular shape at the joint, so that the base and the rotary table can rotate relatively, uniformly distributed screw holes are formed in the edge of the rotary table 2 and used for installing a case, and the case is sealed by the waterproof structure. A mounting plate 21 is fixed on the rotary table 2, and all the equipment in the case is mounted on the mounting plate 21. In order to complete the rotation of the rotary table 2, a bearing gear 7 is coaxially and fixedly installed on the base 1, as shown in fig. 2 and 3, the bearing gear 7 is a large-diameter gear which basically covers the whole base 1, the bearing gear 7 is located between the rotary table 2 and the base 1, the bearing gear 7 is coaxially connected with the photoelectric slip ring 3 to complete signal transmission, the photoelectric slip ring 3 extends out of the rotary table 2 and is located in the case, and the mounting plate 21 is provided with an azimuth driving motor 4, an azimuth locking mechanism 5 and an azimuth transmitter 6. The azimuth driving motor 4 is meshed with the bearing gear 7 through a driving gear 8 to form transmission; referring to fig. 2, the azimuth drive motor 4 has a rotation shaft extended between the turntable 2 and the base 1, and a drive gear 8 is installed, the drive gear 8 is engaged with the bearing gear 7, and the drive gear 8 is much smaller in size than the bearing gear 7. A group of data gears 9 are arranged between the azimuth driving motor 4 and the bearing gear 7 and used for measuring the shaft return difference value of the azimuth driving motor 4. In order to lock the rotary table 2, the azimuth lock mechanism 5 is composed of a cylinder-controlled latch 51, a circle of latch holes 71 are formed on the axial surface of the bearing gear 7, and in the locked state, the latch 51 extends into the latch holes 71 through the mounting plate 21, and the detailed structure thereof can be seen in fig. 4. As shown in fig. 1, as a preferred embodiment, a plurality of screws 10 are provided on the mounting plate 21, and in the locked state, the screws 10 are inserted into the axial surface of the bearing gear 7 through the mounting plate 21. A speed reduction ratio of 35 is arranged between the azimuth driving motor 4 and the driving gear 8: 1 of a speed reducer. The speed ratio of the APEX AFR075 (speed ratio 35) type speed reducer selected by the speed reducer is 35: 1, efficiency of 92 percent, continuous output torque of 140Nm, instantaneous torque of 3 times of rated torque, 2 levels, weight of 7.8kg, right-angle output structure, rated input rotation speed of 4000rpm, maximum input rotation speed of 8000rpm, and use temperature of-40 to +90 ℃. Azimuth total gear ratio i = 289.2.

The foregoing is illustrative of the preferred embodiments of the present invention, and it is to be understood that the invention is not limited to the precise forms disclosed herein, and that various other combinations, modifications, and environments may be resorted to, falling within the scope of the invention as defined by the appended claims. But that modifications and variations may be effected by those skilled in the art without departing from the spirit and scope of the invention, which is to be limited only by the claims appended hereto.

Claims

1. A dual-polarization phased array weather radar azimuth turntable, comprising:

the device comprises a base (1) and a rotary table (2) arranged on the base (1), wherein a mounting plate (21) is fixed on the rotary table (2);

a bearing gear (7) is coaxially and fixedly installed on the base (1), the bearing gear (7) is coaxially connected with a photoelectric slip ring (3), and the photoelectric slip ring (3) extends out of the rotary table (2);

the mounting plate (21) is provided with an azimuth driving motor (4), an azimuth locking mechanism (5) and an azimuth transmitter (6), and the azimuth driving motor (4) is meshed with the bearing gear (7) through a driving gear (8) to form transmission;

a group of data gears (9) are arranged between the azimuth driving motor (4) and the bearing gear (7) and are used for measuring the axial return difference value of the azimuth driving motor (4);

the azimuth locking mechanism (5) is composed of a bolt (51) controlled by an air cylinder, a circle of bolt holes (71) are formed in the axial surface of the bearing gear (7), and the bolt (51) penetrates through the mounting plate (21) and extends into the bolt holes (71) in a locking state.

2. The dual-polarization phased array weather radar azimuth turntable according to claim 1, wherein a plurality of screws (10) are arranged on the mounting plate (21), and in a locked state, the screws (10) penetrate through the mounting plate (21) and are inserted into the axial surface of the bearing gear (7).

3. The dual-polarization phased array weather radar azimuth turntable according to claim 1, wherein a reduction ratio of 35 is arranged between the azimuth driving motor (4) and the driving gear (8): 1 of a speed reducer.

4. The dual-polarization phased array weather radar azimuth turntable according to claim 1, wherein a waterproof structure is formed at the joint of the turntable (2) and the base (1) by adopting labyrinth-shaped wools, and the joint of the base (1) and the turntable (2) is designed to be annular so as to be capable of rotating relatively.

5. The dual-polarization phased array weather radar azimuth turntable as claimed in claim 1, wherein the edge of the turntable (2) is provided with evenly distributed screw holes for installing a case.