JP2553781B2 - Ground displacement absorption equipment for radar equipment - Google Patents

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a ground displacement absorption device for radar equipment.

[0002]

2. Description of the Related Art As is well known, in air traffic control and the like,
Fully equipped with radar equipment. Usually, the required holding accuracy for maintaining the function of the radar equipment is set, and the allowable displacement received from the outside world is determined.

[0003]

On the other hand, the radar equipment is
It is installed in a place away from general residents such as mountainous areas and remote islets. However, it is often necessary to install in an area where volcanic activity is active, and in this case, ground displacement due to ups and downs of the ground is large. Therefore, it may be very difficult to maintain the function of the radar equipment, and a device for absorbing the displacement of the ground is required for the radar main body.

The present invention has been made in order to meet such a demand, and an object of the present invention is to provide a ground displacement absorbing device for radar equipment which maintains the required accuracy of the radar equipment.

[0005]

For this reason, according to the present invention, hydraulic jacks are respectively erected on a plurality of concrete foundations buried in the ground, and the upper end portions of the operating rods of these hydraulic jacks are provided with a sink and a spherical seat, respectively. Via a pedestal, and a plurality of antennas are erected on the pedestal, and displacement gauges are embedded at multiple locations on the ground, and these displacement gauges are connected to the hydraulic jacks together with a hydraulic unit. It is connected to the control center via a joint box, and the control center is equipped with a converter, a recorder and a computer.It controls the hydraulic unit based on the signal from the displacement gauge to increase or decrease the stroke of the hydraulic jack. A ground displacement absorbing device for a radar installation is provided.

[0006]

[0007]

[0008]

[0009]

In the ground displacement absorption device for radar equipment constructed as described above, when the ground subsides, the control center controls the hydraulic unit to operate the hydraulic motor based on the signal from the vertical displacement meter, The subsidence displacement is automatically absorbed by increasing the stroke of the hydraulic jack by the subsidence amount.

When the ground is raised, contrary to the above, the stroke of the hydraulic jack is reduced by the amount of the bulge to automatically absorb the bulge displacement.

When the ground is slightly displaced in the horizontal direction,
The hydraulic jack of the ground slightly displaces or rotates with respect to the shoe and the spherical seat, and absorbs some horizontal displacement and inclination.

Further, when the ground is largely displaced in the horizontal direction, it is absorbed by changing the foundation. Then, each displacement amount is recorded by a recorder provided in the control center.

[0013]

Embodiments of the present invention will be described below with reference to the drawings.

In FIG. 1, a plurality of (two pairs in the illustrated example) concrete foundations 1a to 1b buried in the ground A.
(The ones behind are not shown.
A hydraulic jack 2 which is an expansion / contraction means is erected on each of the above (reference numeral 1 is used) and is expanded / contracted by a hydraulic motor (not shown).

The four corners of a horizontal pedestal 5 which are long in the left-right direction in the drawing are connected to the upper ends of the operating rods 3 of these hydraulic jacks 2 via a trough 4 and a spherical seat 4 ', respectively. Then, a plurality of antennas 6 are provided on the receiving stand 5.
~ 6 are erected.

In FIG. 2, the hydraulic jacks 2 to 2 are connected by a hydraulic circuit L1 to a hydraulic unit 7 which is a pressure oil supply means having a hydraulic pump (not shown). The plurality of hydraulic units 7 to 7 are connected to a joint box 14 by an electric circuit E1, and the joint box 14 includes a computer 11, a recorder 12 and a converter 13 provided in the control building B by an electric circuit E2. It is connected to the control means, that is, the computer 11 of the control center 10.

The converter 13 is connected to a joint box 15 by an electric circuit E3, and the joint box 15 is connected with displacement gauges 8 to 8 for detecting a plurality of vertical and horizontal displacements by an electric circuit E4. Has been done. The displacement meter 8 is embedded in a required place in the ground on the radar side from the side C.

Next, the operation will be described with reference to FIG.

Based on the signal from the displacement gauge 8, the control center 10 displaces the ground A in the vertical direction (here,
The displacement in the subsidence direction is set to be positive) is detected (step S1). Next, it is determined whether or not the displacement is zero (step S2). If YES, the control ends, and if NO,
It is determined whether the displacement is positive (step S3). NO
That is, in the case of subsidence (the right half of FIG. 1), the hydraulic unit 7 is controlled to increase the stroke of the hydraulic jack 2 (step S4). In the case of NO, that is, the upheaval (the left half portion of FIG. 1), the hydraulic unit 7 is controlled to reduce the stroke of the hydraulic jack 2 (step S5), the process returns to step S1, and the displacement due to the subsidence or the uplift is absorbed to zero. become,
When step S2 becomes YES, the control ends.

Also, for example, one concrete foundation 1a
When the ground is displaced in the horizontal direction due to the displacement of the ground A, the hydraulic jack 2 on the foundation 1a is displaced by the trough 4, and a slight horizontal displacement can be absorbed. Further, when the hydraulic jack 2 on the foundation 1a is tilted by a slight amount D in the horizontal direction, the hydraulic jack 2 on the base 1a is rotated to the chain line position 2a with respect to the spherical seat 4 ', and a slight tilt displacement D is absorbed.

When the horizontal displacement of the concrete foundation 1a is large, the concrete foundation 1a is absorbed by re-arranging it. Then, the respective displacement amounts can be recorded and confirmed by the recorder 12 provided in the control center 10.

[0022]

Since the present invention is constructed as described above, the vertical displacement of the ground is compensated by the increase or decrease of the stroke of the hydraulic jack based on the signal from the displacement gauge, and the horizontal displacement of the ground is compensated. The displacement is absorbed by the displacement of the gear, and the tilt displacement is absorbed by the rotation of the spherical seat, and the ground displacement is automatically absorbed to maintain the required accuracy of the radar equipment. In particular, the present invention connects a displacement unit and a hydraulic unit for supplying pressure oil to each hydraulic jack to a control center via a joint box, and the control center includes a converter, a recorder and a computer, and The hydraulic unit can be controlled simultaneously to increase or decrease the stroke of each hydraulic jack to accurately absorb the ground displacement, and the displacement amount can be recorded and confirmed by a recorder.

[Brief description of drawings]

FIG. 1 is a side view showing an embodiment of the present invention.

FIG. 2 is a control block diagram.

FIG. 3 is a control flowchart.

[Explanation of symbols]

 A ... Ground 1 ... Concrete foundation 2 ... Hydraulic jack 3 ... Operating rod 4 ... Recess 4 '... Spherical seat 5 ... Receiving stand 6 ... Antenna 7 ... Hydraulic unit 8 ・ ・ ・ Displacement meter 10 ・ ・ ・ Control center 11 ・ ・ ・ Computer 12 ・ ・ ・ Recorder 13 ・ ・ ・ Transducer 14 ・ ・ ・ Joint box 15 ・ ・ ・ Joint box

 ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Haruo Yamanishi Inventor Haruo Yamanishi Akasaka DK Building 9th floor, Akasaka 1-3-8, Minato-ku, Tokyo Kashima Construction Co., Ltd. Tokyo Branch (56) References JP, U) JP 58-42642 (JP, B2)

Claims (1)

(57) [Claims] 1. A hydraulic jack is erected on each of a plurality of concrete foundations buried in the ground, and the upper end portions of the operating rods of these hydraulic jacks are connected by a cradle through a trough and a spherical seat, and the cradle. A plurality of antennas are erected on the top, displacement gauges are embedded in multiple locations on the ground, and these displacement gauges are connected to a control center via a joint box together with a hydraulic unit that supplies pressure oil to each of the hydraulic jacks for control. The center is equipped with a converter, a recorder and a computer, and controls the hydraulic unit based on the signal from the displacement gauge to increase or decrease the stroke of the hydraulic jack. apparatus.