CN102946000A - Statical indetermination radar/antenna support dynamic leveling method - Google Patents

Abstract

The present invention provides a method for dynamic leveling of an ultra-static radar/antenna support. The leveling method includes the following steps: Step S1: setting a first level and a second level on the turntable with directions perpendicular to each other; Step S2: setting The radar/antenna pointing on the turntable is adjusted to be horizontal; Step S3: Control the turntable to rotate around the azimuth axis to make the radar/antenna point to multiple directions, and adjust the supporting feet at the ends of the four horizontal legs to make the radar/antenna point to various directions , the indications of the first level are all horizontal; step S4: continue to control the turntable to rotate around the azimuth axis so that the radar/antenna points to multiple directions, maintain the indication of the first level as level, and adjust the supporting feet at the ends of the four horizontal legs, In order to make the second spirit level indicate consistent readings in all directions. In the present invention, when the gravity moment is the largest, the turntable is firstly adjusted to be in a horizontal state; then the stiffness of each horizontal support leg is adjusted to make the force of each horizontal support leg consistent.

Description

Dynamic leveling method of statically indeterminate radar/antenna support

technical field

The invention relates to the field of radar/antenna brackets, in particular to a dynamic leveling method for hyperstatic radar/antenna brackets.

Background technique

The radar/antenna bracket is the base of the radar antenna and its driving device (turntable), and the turntable is in a horizontal state by adjusting the bracket. The adjustment of the portable bracket faces two problems, one is the problem of static indetermination, and the other is the problem of micro-deformation of the structure.

In order to improve the windproof problem of the portable bracket, the radar/antenna bracket adopts an ultra-static structure. For example, the 4-support leg scheme (super-static structure) is 1.73 times the wind resistance of the 3-support leg scheme (static structure). However, the statically indeterminate structure brings difficulties to the horizontal adjustment of the support. Due to its statically indeterminate characteristics, the requirement of "the turntable is level" is not enough to determine the force on each supporting leg; when it is level, there can be infinite combinations of forces; this means that there can be infinite adjustments. The best solution is that the force of each support leg is equal, which can make the deformation in all directions the same. In the prior art, it is generally only adjusted so that the "turntable reaches the level", without considering the uniformity of the force on each support leg, resulting in a large degree of randomness in the adjustment.

The adjustment problem caused by the slight deformation of the structure is due to the fact that the structure of the radar/antenna bracket is light in weight and its stiffness is obviously weaker than that of a fixed radar/antenna bracket. The gravitational moment generated by the antenna's own weight will affect the system level, and different elevation angles and different azimuth angles will correspond to different interferences. After the level adjustment of the system is completed in any fixed state, as long as the elevation angle or azimuth angle of the radar is changed, it may cause the turntable to lose its level.

Contents of the invention

The present invention aims to provide a dynamic leveling method for a statically indeterminate radar/antenna support that makes each supporting leg uniformly stressed, so as to reduce the problem that the support is unstable due to the gravitational moment generated by the radar/antenna.

The invention provides a method for dynamic leveling of an ultra-static radar/antenna bracket. The ultra-static radar/antenna bracket includes a vertically arranged center column and four horizontal legs arranged at the lower end of the center column. The horizontal legs are far away from the center One end of the column is provided with a support foot whose height can be adjusted in the vertical direction, and the upper end of the center column is provided with a turntable for installing radar/antenna; the leveling method includes the following steps: Step S1: Set the first two points on the turntable indicating that the directions are perpendicular to each other. level and second level; step S2: adjust the radar/antenna pointing set on the turntable to be horizontal; step S3: control the turntable to rotate around the azimuth axis to make the radar/antenna point to multiple directions, and adjust the ends of the four horizontal legs respectively When the radar/antenna points to various directions, the indications of the first level are all horizontal; Step S4: Continue to control the rotation of the turntable around the azimuth axis so that the radar/antenna points to multiple directions, maintain the indication of the first level as horizontal, and Adjust the supporting feet at the ends of the four leveling legs so that the readings indicated by the second level are consistent when the radar/antenna is pointing in all directions.

Further, step S3 specifically includes the following steps: Step S31: take the four horizontal legs as the first horizontal leg, the second horizontal leg, the third horizontal leg and the fourth horizontal leg in sequence, and control the rotation of the turntable around the azimuth axis Make the radar/antenna point to the first horizontal leg or the third horizontal leg, adjust the second horizontal leg and/or the fourth horizontal leg, so that the first level indicator is horizontal; Step S32: Control the turntable to rotate around the azimuth axis so that The radar/antenna points to the second leveling leg or the fourth leveling leg, adjust the first leveling leg and/or the third leveling leg so that the first level indicates level.

Further, step S4 specifically includes the following steps: Step S41: Control the turntable to rotate around the azimuth axis so that the radar/antenna points to the first horizontal outrigger, and records the reading X1 of the second level gauge; then point the radar/antenna to the second horizontal outrigger , and record the reading X2 of the second level; step S42, compare X1 and X2, when X1>X2, adjust the supporting feet at the ends of the first horizontal leg and the third horizontal leg, so that the first horizontal leg and the third horizontal leg Raise the leveling leg and maintain the level indicated by the first level meter; when X2>X1, adjust the supporting feet at the ends of the second leveling leg and the fourth leveling leg so that the second leveling leg and the fourth leveling leg Raise and maintain the level indicated by the first level indicator; Step S43: Repeat Step S41 and Step S42 to make X1=X2.

Further, the end of the horizontal support leg away from the central column is provided with a screw hole extending in the vertical direction, and the support leg is provided with a threaded shaft matching the screw hole.

According to the dynamic leveling method of the ultra-static radar/antenna support of the present invention, by pointing the radar/antenna at 0°, the gravity moment reaches the maximum, and by adjusting each horizontal leg, the first spirit level is indicated as horizontal in each direction , so as to adjust the turntable to be in a horizontal state; then, while maintaining the level indicated by the first level, by adjusting the supporting feet, the readings of the second level are consistent when the radar/antenna is in all directions, so that the stiffness of each horizontal leg is consistent, that is Indirectly adjust the force of each horizontal outrigger to be consistent, and improve the stability of the system.

Description of drawings

The accompanying drawings constituting a part of this application are used to provide further understanding of the present invention, and the schematic embodiments and descriptions of the present invention are used to explain the present invention, and do not constitute an improper limitation of the present invention. In the attached picture:

Fig. 1 is a schematic structural view of a hyperstatic radar/antenna support according to the present invention; and

Fig. 2 is a partial enlarged view at the mark I in Fig. 1 .

Detailed ways

The present invention will be described in detail below with reference to the accompanying drawings and examples.

As shown in Fig. 1 and Fig. 2, according to a kind of hyperstatic radar/antenna bracket dynamic leveling method of the present invention, hyperstatic radar/antenna bracket comprises the central column 10 that is vertically arranged, and is arranged on the central column 10 lower end Four horizontal supporting legs 20, the end of the horizontal supporting legs 20 away from the central column 10 is provided with a support foot 21 adjustable in height along the vertical direction, and the upper end of the central column 10 is provided with a turntable for installing radar/antenna; the leveling method includes the following Steps: Step S1: Set the first spirit level 31 and the second spirit level 32 on the turntable with directions perpendicular to each other; Step S2: Adjust the radar/antenna pointing set on the turntable to be horizontal; Step S3: Control the turntable to rotate around the azimuth axis To make the radar/antenna point to multiple directions, respectively adjust the supporting feet 21 at the ends of the four horizontal legs 20, so that when the radar/antenna points to each direction, the indications of the first spirit level 31 are all horizontal; step S4: continue to control the turntable around the direction The shaft is rotated to make the radar/antenna point to multiple directions, maintain the indication of the first level 31 to be horizontal, and adjust the supporting feet 21 at the ends of the four horizontal legs 20 to make the readings of the second level 32 consistent in all directions. According to the dynamic leveling method of the hyperstatic radar/antenna support of the present invention, by pointing the radar/antenna at 0°, its gravity moment reaches the maximum, and by adjusting each horizontal support leg 20, the first spirit level 31 can be indicated in each direction Level, thereby adjusting the turntable to be in a horizontal state; then, under the condition that the first level 31 is indicated as a horizontal state, by adjusting each support foot 21, the readings of the second level 32 are kept consistent when the radar/antenna is in each direction, so that each level support The rigidity of the legs 20 is consistent, that is, the force of each horizontal support leg 20 is indirectly adjusted to be consistent, and the stability of the system is improved.

Preferably, step S3 specifically includes the following steps: Step S31: taking the four horizontal legs 20 as the first horizontal leg, the second horizontal leg, the third horizontal leg and the fourth horizontal leg in turn, controlling the turntable to rotate around the azimuth axis Rotate to make the radar/antenna point to the first horizontal leg or the third horizontal leg, adjust the second horizontal leg and/or the fourth horizontal leg, so that the first level meter 31 is indicated as horizontal; step S32: control the turntable around the azimuth axis Rotate to make the radar/antenna point to the second horizontal leg or the fourth horizontal leg, adjust the first horizontal leg and/or the third horizontal leg so that the first spirit level 31 indicates level. So that the turntable is in a horizontal state.

Since the radar/antenna bracket is a statically indeterminate structure, the force on the four horizontal legs is related to the deformation of the structure. It is possible that two horizontal outriggers bear a lot of force, while the other two horizontal outriggers bear little force, which is not conducive to the stability of the system. Therefore, step S4 is used to adjust the stiffness of the support in all directions (that is, the stiffness of each horizontal leg is consistent), thereby indirectly making the force of the four horizontal legs consistent.

Specifically, step S4 includes the following steps: Step S41: Control the turntable to rotate around the azimuth axis to make the radar/antenna point to the first horizontal leg, and record the reading X1 of the second level meter 32; then point the radar/antenna to the second horizontal leg , and record the reading X2 of the second level meter 32; step S42, compare X1 and X2, when X1>X2, it means that the stiffness of the first horizontal support leg and the third horizontal support leg are relatively weak, and these two horizontal support legs need to be promoted Legs, so that the deformation of the two increases, thereby improving the rigidity of the two. Similarly, when X2>X1, it means that the rigidity of the second horizontal support leg and the fourth horizontal support leg is relatively weak, and the supporting feet 21 at the ends of the second horizontal support leg and the fourth horizontal support leg are adjusted to make the second horizontal support leg The outrigger and the fourth horizontal outrigger are elevated, so that the deformation and rigidity of the second horizontal outrigger and the fourth horizontal outrigger are increased. During the adjustment process, it is necessary to maintain the first level 31 indicating a horizontal state, so as to prevent the turntable from losing the horizontal state caused by the stiffness adjustment.

Step S41 and Step S42 are repeated multiple times, so that X1=X2, even if the stiffness of the four horizontal legs is the same, the force of each horizontal leg is balanced indirectly, so as to overcome the problem of unstable support caused by gravity.

Preferably, in order to make the adjustment of each horizontal leg more convenient, the end of each horizontal leg 20 away from the central column 10 is provided with a screw hole extending in the vertical direction, and the supporting foot 21 is provided with a threaded shaft that matches the screw hole, and the thread The upper end of the shaft is provided with a handle that is convenient to rotate, and when the height of each horizontal support leg 20 needs to be adjusted, it is only necessary to rotate the threaded shaft.

From the above description, it can be seen that the above-mentioned embodiments of the present invention have achieved the following technical effects:

According to the dynamic leveling method of the ultra-static radar/antenna support of the present invention, the gravity moment reaches the maximum by adjusting the radar/antenna pointing to the level, and by adjusting each horizontal leg, the first spirit level is indicated as level, so as to adjust the turntable to be in a horizontal state; then, while maintaining the level indicated by the first level, by adjusting the supporting feet, the readings of the second level are consistent when the radar/antenna is in all directions, so that the rigidity of each horizontal leg is consistent, That is to indirectly adjust the stress of each horizontal outrigger to be consistent and improve the stability of the system.

The above descriptions are only preferred embodiments of the present invention, and are not intended to limit the present invention. For those skilled in the art, the present invention may have various modifications and changes. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention shall be included within the protection scope of the present invention.

Claims (4)

1. indeterminate radar/antenna holder dynamic leveling method, it is characterized in that, described indeterminate radar/antenna holder comprises the newel (10) of vertical setting, with four horizontal support legs (20) that are arranged on described newel (10) lower end, described horizontal support legs (20) is provided with vertically Height Adjustable feet (21) away from an end of described newel (10), and the upper end of described newel (10) is provided with the turntable of installation radar/antenna;

Described leveling method may further comprise the steps:

Step S1: orthogonal the first level meter of direction indication (31) and the second level meter (32) are set at described turntable;

Step S2: the radar/antenna direction that will be arranged on the described turntable is adjusted into level;

Step S3: the control turntable rotates so that a plurality of orientation of described radar/antenna direction around azimuth axis, regulate respectively the feet (21) of four described horizontal support legs (20) end, when making each orientation of described radar/antenna direction, described the first level meter (31) indication is level;

Step S4: continue the control turntable and rotate so that a plurality of orientation of described radar/antenna direction around azimuth axis, keep described the first level meter (31) and be designated as level, and regulate the feet (21) of four described horizontal support legs (20) end, so that described the second level meter (32) indicates reading consistent when each orientation of described radar/antenna direction.

2. indeterminate radar according to claim 1/antenna holder dynamic leveling method is characterized in that, described step S3 specifically may further comprise the steps:

Step S31: be followed successively by the first horizontal support legs, the second horizontal support legs, the 3rd horizontal support legs and the 4th horizontal support legs with four described horizontal support legs (20), control described turntable and make described the first horizontal support legs of described radar/antenna direction or the 3rd horizontal support legs around the azimuth axis rotation, regulate the second horizontal support legs and/or the 4th horizontal support legs, make described the first level meter (31) be designated as level;

Step S32: control described turntable and make described the second horizontal support legs of described radar/antenna direction or the 4th horizontal support legs around the azimuth axis rotation, regulate the first horizontal support legs and/or the 3rd horizontal support legs, make described the first level meter (31) be designated as level.

3. indeterminate radar according to claim 2/antenna holder dynamic leveling method is characterized in that, described step S4 specifically may further comprise the steps:

Step S41: control described turntable and make described the first horizontal support legs of described radar/antenna direction around the azimuth axis rotation, and record the reading X1 of described the second level meter (32); Again with described the second horizontal support legs of described radar/antenna direction, and record the reading X2 of described the second level meter (32);

Step S42, relatively X1 and X2 as X1＞X2, regulate the feet (21) of the first horizontal support legs and the 3rd horizontal support legs end, and the first horizontal support legs and the 3rd horizontal support legs are raise, and keep described the first level meter (31) and be designated as level;

As X2＞X1, regulate the feet (21) of the second horizontal support legs and the 4th horizontal support legs end, the second horizontal support legs and the 4th horizontal support legs are raise, and keep described the first level meter (31) and be designated as level;

Step S43: repeating step S41 and step S42 make X1=X2.

4. indeterminate radar according to claim 1/antenna holder dynamic leveling method is characterized in that,

Described horizontal support legs (20) is provided with the screw that vertically extends away from an end of described newel (10), and described feet is provided with the thread spindle that cooperates with described screw on (21).

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