CN111183746B - Radar antenna gesture stabilizing mean - Google Patents
Radar antenna gesture stabilizing mean Download PDFInfo
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- CN111183746B CN111183746B CN201318004218.0A CN201318004218A CN111183746B CN 111183746 B CN111183746 B CN 111183746B CN 201318004218 A CN201318004218 A CN 201318004218A CN 111183746 B CN111183746 B CN 111183746B
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Abstract
The invention relates to a radar antenna posture stabilizing mechanism which is used for eliminating a rolling error of a self-propelled radar vehicle caused by a radar antenna by controlling an electric push rod to push the radar antenna to rotate. The invention adopts a pushing mode of a motor, a reducer and a T-shaped lead screw, adopts a large-diameter ultrathin precise turntable bearing to support an antenna, and adopts a double-channel 16-bit coding rotary transformer to transmit an angular position signal, thereby realizing large load, small size and high precision. The invention improves the erection precision of the radar antenna, the structural form of the invention has novelty and practicability, the bearing can reach 250kN due to the adoption of the customized ultrathin turntable bearing in the design, and the size in the thickness direction is only 196 mm; and an electric push rod mechanism is adopted, and the transmission torque is not less than 3360 N.m.
Description
Technical Field
The invention belongs to a mechanical transmission device, and relates to a radar antenna attitude stabilizing mechanism which is used for eliminating a rolling error of a vehicle body to an antenna when a self-propelled radar system is erected so as to better exert the radar performance.
Background
With the development of the technology, the modern war battlefield is constantly changed, the requirement on the automation degree of the radar is higher and higher, the requirement on the erection and the withdrawal time of the radar is shorter and shorter, and the self-propelled radar system can work in the advancing process, so that the self-propelled radar system is more and more applied. Self-propelled radar systems do not have a leveling system, but have a stable platform to support the radar antenna. The invention belongs to a roll stabilizing shaft in a three-axis stabilizing platform, and relates to an antenna attitude stabilizing mechanism. In order to meet the requirements of modern war, the power of radar is more and more powerful, so the size and the weight of the required radar antenna are increased, and accordingly, the stable platform is required to have large load capacity of each shaft, large driving torque, high positioning precision and small size, which brings a serious challenge to mechanism design.
Disclosure of Invention
In order to avoid the defects of the prior art, the invention provides a radar antenna attitude stabilizing mechanism.
A radar antenna attitude stabilizing mechanism is characterized by comprising a base 2, an electric push rod 3, a bearing 4, a rotary transformer, a rigid power disc 6, a rotary transformer support 7 and a rotary table rotating shaft 8; one end of the electric push rod 3 is connected with the base 2 through a rotary table rotating shaft 8, and the electric push rod 3 forms rotary connection around the rotary table rotating shaft 8; the other end of the electric push rod 3 is connected with the antenna 1; the rigid power disc 6 is fixedly connected with the antenna 1, the outer ring of the bearing 4 is fixedly connected with the base 2, and when the electric push rod 3 drives the antenna 1 to rotate, the rigid power disc 6 drives the inner ring of the bearing 4 to rotate, so that the antenna 1 and the base 2 rotate relatively; meanwhile, the rotary transformer stator 5a is fixedly connected with the base 2 through the rotary transformer support 7, the rotary transformer rotor 5b is fixedly connected with the rigid power disc 6, and when the rigid power disc 6 rotates, the rotary transformer rotor 5b is driven to rotate.
The radar antenna attitude stabilizing mechanism provided by the invention is used for eliminating the rolling error of the self-propelled radar vehicle to the radar antenna by controlling the electric push rod 3 to push the radar antenna 1 to rotate. The invention adopts a pushing mode of a motor, a reducer and a T-shaped lead screw, adopts a large-diameter ultrathin precise turntable bearing 4 to support an antenna, and adopts a double-channel 16-bit coding rotary transformer 5 to transmit an angular position signal, thereby realizing large load, small size and high precision.
The invention improves the erection precision of the radar antenna, the structural form of the invention has novelty and practicability, the bearing can reach 250kN due to the adoption of the customized ultrathin turntable bearing in the design, and the size in the thickness direction is only 196 mm; and an electric push rod mechanism is adopted, and the transmission torque is not less than 3360 N.m.
Drawings
FIG. 1: three-dimensional diagram of antenna attitude stabilization mechanism
FIG. 2: antenna attitude stabilizing mechanism
FIG. 3: sectional view of antenna attitude stabilization mechanism
FIG. 4: antenna attitude stabilization mechanism exploded view
The device comprises a radar antenna 1, a base 2, an electric push rod 3, a turntable bearing 4, a double-channel 16-bit coding rotary transformer 5, a rotary transformer stator 5a and a rotary transformer rotor 5 b.
Detailed Description
The invention will now be further described with reference to the following examples and drawings:
the structural component of the radar antenna attitude stabilizing mechanism comprises a base 2, an electric push rod 3 (a motor, a speed reducer, a gear transmission pair, a lead screw transmission pair and a travel switch), a turntable bearing 4 and a rotary transformer 5. The base 2 is a main part of the mechanism, and all other parts and devices are arranged on the base 2; one end of the electric push rod 3 is connected with the base 2, and the other end is connected with the array surface of the antenna 1. When the electric push rod 2 works, the servo motor inputs rotary motion through the speed reducer and the gear box, the input rotary motion is converted into linear motion of the push rod through the T-shaped lead screw, so that the antenna 1 is driven to rotate relative to the base 2 by taking the precise turntable bearing 4 as a center, the rotary transformer 5 feeds an angular position signal of the antenna 1 back to the controller, and the rotating angle of the antenna can be precisely controlled. The specific structure form is shown in figure 1.
Description of FIG. 2: electric putter 3 one end is connected through revolving stage pivot 8 with base 2, and electric putter 3 can rotate around revolving stage pivot 8, and the other one end of electric putter 3 is connected with antenna 1. The rigid power disc 6 is fixedly connected with the antenna 1. When the electric push rod 3 drives the antenna 1 to rotate, the rigid power disc 6 drives the inner ring of the bearing 4 to rotate, and the outer ring of the bearing 4 is fixedly connected with the base 2, so that the antenna 1 and the base 2 can rotate relatively. Meanwhile, the rotary transformer stator 5a is fixedly connected with the base 2 through the rotary transformer support 7, the rotary transformer rotor 5b is fixedly connected with the rigid power disc 6, and when the rigid power disc 6 rotates, the rotary transformer rotor 5b is driven to rotate, so that the measurement of the rotation angle is realized.
The main technical indexes of the mechanism are as follows:
1 bearing capacity: 250kN
2, rotation moment: not less than 3360 N.m;
3, maximum rotating speed: 1.18 °/S;
4, motion range: an electrical stop is +/-8 degrees, and a mechanical stop is +/-10 degrees;
5, repeated positioning precision: 0.15mil
6, external dimension: 1753X 1154X 196 (mm);
the invention improves the erection precision of the radar antenna, the structural form of the invention has novelty and practicability, the bearing can reach 250kN due to the adoption of the customized ultrathin turntable bearing in the design, and the size in the thickness direction is only 196 mm; and an electric push rod mechanism is adopted, and the transmission torque is not less than 3360 N.m.
Claims (1)
1. A radar antenna attitude stabilizing mechanism is characterized by comprising a base (2), an electric push rod (3), a bearing (4), a rotary transformer, a rigid power disc (6), a rotary transformer bracket (7) and a rotary table rotating shaft (8); one end of an electric push rod (3) is connected with a base (2) through a rotary table rotary shaft (8), the electric push rod (3) is in rotary connection around the rotary table rotary shaft (8), the other end of the electric push rod (3) is connected with an antenna (1), a rigid power disc (6) is fixedly connected with the antenna (1), the outer ring of a bearing (4) is fixedly connected with the base (2), when the electric push rod (3) drives the antenna (1) to rotate, the rigid power disc (6) drives the inner ring of the bearing (4) to rotate, so that the antenna (1) and the base (2) can rotate relatively, meanwhile, a rotary transformer stator (5a) is fixedly connected with the base (2) through a rotary transformer support (7), a rotary transformer rotor (5b) is fixedly connected with the rigid power disc (6), and when the rigid power disc (6) rotates, the rotary transformer rotor (5b) is driven to rotate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201318004218.0A CN111183746B (en) | 2013-08-29 | 2013-08-29 | Radar antenna gesture stabilizing mean |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201318004218.0A CN111183746B (en) | 2013-08-29 | 2013-08-29 | Radar antenna gesture stabilizing mean |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN111183746B true CN111183746B (en) | 2015-09-02 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201318004218.0A Active CN111183746B (en) | 2013-08-29 | 2013-08-29 | Radar antenna gesture stabilizing mean |
Country Status (1)
| Country | Link |
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| CN (1) | CN111183746B (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111983568A (en) * | 2020-08-20 | 2020-11-24 | 南京恩瑞特实业有限公司 | Azimuth signal double-path mutual backup design |
| CN112467382A (en) * | 2020-11-24 | 2021-03-09 | 萍乡学院 | Antenna steering device for directional drilling radar |
-
2013
- 2013-08-29 CN CN201318004218.0A patent/CN111183746B/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111983568A (en) * | 2020-08-20 | 2020-11-24 | 南京恩瑞特实业有限公司 | Azimuth signal double-path mutual backup design |
| CN112467382A (en) * | 2020-11-24 | 2021-03-09 | 萍乡学院 | Antenna steering device for directional drilling radar |
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| GR03 | Grant of secret patent right | ||
| GRSP | Grant of secret patent right | ||
| DC01 | Secret patent status has been lifted | ||
| DC01 | Secret patent status has been lifted |