JPH0520003Y2 - - Google Patents

Description

[Detailed Description of the Invention] [Industrial Application Field] The present invention relates to a parabolic antenna assembly and adjustment device that can easily and quickly assemble and adjust a parabolic antenna for satellite communication.

[Prior Art] Various types of parabolic antennas have been known, ranging from those with an integrated structure to those configured by connecting a plurality of reflecting plates. When installing such an antenna, accurate and easy assembly and adjustment is important because the mirror precision of the parabolic antenna is set.

Conventionally, as a reflecting mirror assembly/adjustment device for performing this type of assembly adjustment, there has been known one as shown in FIG. 2 (for example, disclosed in Japanese Utility Model Application Publication No. 59-61616). The parabolic antenna assembly and adjustment device 40 shown in the figure includes a rotating shaft 31, support rods 32, 33, 34,
It is composed of dial gauges 35 and 36, a bearing 37, and a pin 38. In addition, 50 is a back support structure, 51 is a main reflecting mirror, 52 is a sub-reflecting mirror main column, and 53 is a sub-reflecting mirror. When performing assembly and adjustment using the assembly and adjustment device 40, the positions of the mirror surfaces of the main reflecting mirror 51 and the sub-reflecting mirror 53 are adjusted based on the readings of the dial gauges 35 and 36 while rotating the rotating shaft 31.

[Problems to be Solved] The conventional assembly and adjustment device 40 described above has
The upper end of 1 is connected to the sub-reflector support 5 via the sub-reflector 53.
2, each time the mirror surface position is adjusted, the sub-reflector support 52 also moves at the same time, and the rotation axis 31
It has the disadvantage that it tilts and takes a lot of time to adjust.

The present invention was devised in view of the problems of the prior art described above, and an object of the present invention is to provide a parabolic antenna assembly and adjustment device that can be easily assembled and adjusted even by an unskilled person in a short time.

[Means for Solving Problems] In order to achieve the above object, the parabolic antenna assembly and adjustment device of the present invention includes a swivel bearing attached to the center of the main reflector of the parabolic antenna, and a balance weight supported by the swivel bearing at the lower end. a rotating shaft having one end fixed to the upper part of the rotating shaft and extending toward the reflecting surface of the main reflecting mirror; and a mirror position attached to the arm for measuring the mirror surface position of the main reflecting mirror. and a measuring means, and the parabolic antenna is assembled and adjusted based on mirror position information obtained from the mirror position measuring means when the rotating shaft is rotated.

[Example] Hereinafter, an example of the present invention will be described with reference to the drawings.

FIG. 1 is a diametrically cross-sectional view of a parabolic antenna equipped with a parabolic antenna assembly and adjustment device according to an embodiment of the present invention.

In the figure, the parabolic antenna 23 includes a back support structure 20, support bolts 21, and a main reflector 2.
2, the main reflecting mirror 22 has a support bolt 21
It is supported on the support structure 20 via. The parabolic antenna assembly and adjustment device 10 is composed of a rotating shaft 1, a swivel bearing 2, an arm 3, a balance weight 4, a counterweight 5, and a dial gauge (mirror surface position measuring means) 6. It is built in such a way that it can be rotated freely. The rotating shaft 1 is rotatably attached to the center of the main reflecting mirror 22 via a swivel bearing 2 . An arm 3 extends from the top of the rotating shaft 1 toward a mirror surface 22a of the main reflecting mirror 22. A dial gauge 6 that comes into contact with the mirror surface 22a is attached to the tip of the arm 3.
Note that 6a is a contact of the dial gauge 6.

Next, the operation of the parabolic antenna assembly and adjustment device having the above configuration will be explained.

To assemble and adjust the parabolic antenna 23, first zero setting the dial gauge 6 is performed.

Next, while rotating the assembly adjustment device 10, read the deflection of the dial gauge 6, adjust the amount of extension of the support bolt 21 so that this value satisfies the standard value, raise and lower the main reflector 22, and adjust the mirror surface position. Make adjustments. Through such operations, the parabolic antenna can be assembled and adjusted easily and in a short time.

Although the present invention has been described above with reference to one preferred embodiment thereof, this is merely an example, and the present invention is not limited to the embodiment described here. Of course.

[Effects of the invention] As explained above, the parabolic antenna assembly and adjustment device of the present invention is equipped with a swivel bearing and a balance weight, so that the parabolic antenna assembly and adjustment device becomes independent, and even if the main reflector moves up and down, the rotation axis remains unchanged. Since it is constantly maintained vertically, even unskilled personnel can easily and accurately assemble and adjust the parabolic antenna in a short time.

[Brief explanation of drawings]

FIG. 1 is a sectional view of a parabolic antenna equipped with a parabolic antenna assembly and adjustment device according to an embodiment of the present invention, and FIG. 2 is a sectional view of a parabolic antenna equipped with a conventional parabolic antenna assembly and adjustment device. 1...Rotating shaft, 2...Bearing, 3...Arm, 4
... Balance weight, 5 ... Counter weight, 6 ... Dial gauge, 10 ... Parabolic antenna assembly and adjustment device, 20 ... Back support structure, 2
1...Support bolt, 22...Main reflector, 23...
parabolic antenna.

Claims (1)

[Scope of utility model registration request] A swivel bearing attached to the center of the main reflector of the parabolic antenna, a rotating shaft supported by the swivel bearing and having a balance weight at its lower end, and a reflecting surface of the main reflector with one end fixed to the top of the rotating shaft. and a mirror position measuring means attached to the arm to measure the mirror position of the main reflecting mirror, the mirror surface obtained by the mirror position measuring means when the rotation axis is rotated. The apparatus for assembling and adjusting the parabolic antenna is configured to assemble and adjust the parabolic antenna based on position information.