JPS60210793A - Regulator for angle of precision apparatus - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

[Detailed Description of the Invention] [Technical Field] The present invention relates to an angle adjustment mechanism for a precision instrument, and more particularly to an angle adjustment device for a precision instrument that requires adjustment of vertical angle and horizontal angle. be.

[Prior art]

For example, a parabolic antenna for receiving microwave transmission from a geostationary satellite has an azimuth angle (horizontal angle) and an IJ13 angle (vertical angle If)! It is necessary to keep it within 1 degree.

For this reason, conventionally a structure as shown in FIG. 1 has been adopted.

The column indicated by the reference numeral 1 in Fig. 1 is a column consisting of a lower column 2 and an upper column 3.
A parabolic antenna 5 is attached via.

At the joints of the lower and upper struts 2.3 are disks 6, respectively.
．． 7 is rotated, and arc-shaped long holes 8 are formed at equal angular intervals in the circumferential direction at positions facing each other in both discs 6 and 70.

A bolt 9 is fitted into each elongated hole 8, and the support column 2.3 is connected and fixed by screwing a nut from below.

Therefore, the relative angles of the upper and lower supports in the horizontal direction can be adjusted within the angular range in which the elongated holes 8 are formed.

On the other hand, the first rotation frame 4 is fixed to the upper end of the upper support column 3 by an axis lO, and rotatably supported on the nine bracket 11. Through holes 12 are formed.

In addition, these through holes t2 are formed and one or more through holes are layered on the bracket 11 side, and after determining the elevation angle, the bracket is inserted through the through hole 11.
A bolt 13 is inserted into a through hole (not shown) formed on the 11 side.
The elevation angle of the parabolic antenna 5 is fixed by fitting the parabolic antenna 5.

However, according to this prior art, when adjusting both the elevation and azimuth angles, once the bolts and nuts are removed or loosened, they tilt due to their own weight, making adjustment difficult.

Further, since only coarse adjustment could be made, there was a drawback that a separate fine adjustment device had to be provided.

〔the purpose〕

The present invention has been made in order to eliminate the above-mentioned drawbacks of the conventional art, and makes it possible to easily and accurately adjust the angle. It is an object of the present invention to provide an angle adjustment device for a precision instrument configured so that f1m adjustment and fine adjustment can be performed with a single adjustment mechanism.

[Structure of the invention]

The angle adjustment device for a precision instrument according to the present invention is arranged on a rotated member so as to be rotatable by a predetermined angle in a predetermined direction with respect to a mounting member,
We adopted a structure in which the mounting member is provided with an operating section that rotates this rotated section in a desired direction via a guide mechanism.

〔Example〕

The present invention will be described in detail below based on an embodiment shown in one drawing.

Figure 2 and the following diagrams explain one embodiment of the present invention.
The figure shows the entire angle adjustment device. This angle adjustment device has two embodiments, one for elevation and one for azimuth adjustment.

Second. Third. FIG. 4 shows an elevation adjustment mechanism according to a first embodiment of the present invention.

In FIG. 2, the reference numeral 20 indicates a rotating frame as a rotating member, which has a substantially U-shaped cross section, and has bent portions 21 at both ends for fixing a parabolic antenna, etc. is bent outward at a right angle.

The upper end of this rotating frame 20 is rotatably supported via a shaft of a first fixing member 221C serving as a mounting member.

The first fixing member 21 also has a substantially U-shaped cross section.

On both sides of the rotating frame 20 as a rotated member, an arc-shaped through hole 24 is formed over a temporary length on the circumference of a circle centered on the axis n. A bolt 5 is fitted into the rotating frame 20 from the inside through a first fixing member 22 as a mounting member, and a nut 26 is inserted from the outside.
Temporary fixation is performed by screwing them together.

On the other hand, positioning holes 27 are formed on both side surfaces of the first fixing member 22 in the vicinity of the port 5. The role of this through hole 27 will be described later.

By the way, an operating mechanism 4 is provided between the rotating frame 20 and the first fixing member 22.

The operating mechanism group is configured as follows.

That is, one end of an arm 30 is fixed via a bracket 29 to the lower part of the rotating frame 20 as a rotating member and to the side surface on the side that is fitted into the first fixing member 22 as a mounting member. , both constitute a link mechanism.

Further, the unthreaded part of the screw shaft 32 is "attached" to the side surface of the first fixing member 22 facing the bracket 29 via a boss 31 so that it can rotate freely but cannot move in the axial direction. ing.

One end of a threaded cylinder is screwed into a threaded portion 321L of the threaded shaft 32 located inside the first fixing portion 22.

Brackets 34 , 34 are provided at the tip of the threaded cylinder 33 so as to sandwich the link 30 from both sides in the horizontal direction, and these brackets and the link 30 are rotatably connected by a pin 35 .

A knob 36 is fixed to the outer end of the screw shaft 32.

Since the operating mechanism 4 has such a function, when the screw shaft 32 is rotated through the knob 36, the screw cylinder 33 screwed into the threaded portion 32a moves forward and backward, and the link 30 is moved through the bracket 1-34. By pushing or pulling , the rotating frame 2o as a rotated member can be rotated steplessly within the range of the elongated hole 24.

When the rotating frame 20 rotates, X
The link 30 and the bracket 34 can freely bend in the vertical direction and follow any angle.

By the way, when rotating the rotating frame 2o as a rotated member in the direction of increasing the elevation angle, the larger the amount of forward movement of the threaded cylinder 33, the smaller the amount of rotation as in the case of a sine curve. You can make fine adjustments.

Next, the second embodiment of the present invention will be explained. 3. This will be explained based on FIG. 5. In this embodiment, the first fixing member 22 in the first embodiment functions as a rotated member, and the second fixing member 38 functions as a mounting member.

Ru.

The first fixed member 22 as a rotated member is placed on a spacer 37 as shown in FIG. Spacer 37
has a thick portion 37a at its center.

This thick portion 37a is formed into a circular shape, and is rotatably fitted into the center of a ring-shaped guide plate 39 fixed on a second fixing member 38 as a mounting member.

On the other hand, a circular recess 3B& is formed in the center of the second fixing member 38 as a mounting member, into which the rotary plate 40 is rotatably fitted.

The upper surface of the rotating plate 40 is in contact with the lower surface of the ring-shaped guide plate.

A shaft 4 protrudes from the center of each of the four parts 38 of the second fixing member as a mounting member, and this shaft 4 penetrates the rotary plate 40 and is fitted into the spacer 37.

Well, hold the shaft 41 from the top of the rotary plate 40 and bolt 42.
, 42 are embedded, and these bolts 42 connect to the rotating plate 40. Spacer, 37 First rigidity as a rotated member! It extends through the bottom plate of the first fixing member 22 and is connected and fixed to the first fixing member 22 side by a nut 43 on the upper surface of the bottom plate of the first fixing member 22 .

By the way, as shown in FIG. 5, a common space 44 is formed between the rotary plate 40 and the second fixing member 38 as a mounting member in a state that substantially corresponds to the operating mechanism 4. An operating mechanism 45 is provided using this space 44.

The operating mechanism 45 is configured as follows.

That is, an arm 47 is provided on the side surface of the rotary plate 40 within the space 44 via a bracket 46.
At a position corresponding to 7, the screw shaft 48 is rotatably fitted through the second fixing member 38 through iL.

The screw shaft 48 extends into the space 44 in a state in which it is threaded into a nut 49 fixed to the side surface of the second fixing member 38 as a mounting member.

A pair of brackets 50, 50 that sandwich the arm 47 from above and below are continuous to the tip g4 of the screw shaft 48.

A pair of brackets l-50, 50 are rotatably connected to the tip of the screw shaft 48 but not movable in the axial direction, and are rotatably connected to the arm 47 via the pin 5. There is.

A knob 36a is fixed to the outer end of the screw shaft 48.

Since the operating mechanism 45 is configured as described above, when the screw shaft 48 is rotated through the knob 52, the screw shaft 48 screwed into the nut 49 is moved forward or backward, and the bracket 50.
The rotating plate 40 is pushed through the arm 47.

As a result, a rotational moment is applied to the rotating plate 40, and the rotating plate 40 descends into a horizontal plane and rotates about the shaft 41.

Then, as the rotation progresses, the link consisting of the arm 47 and the bracket 50 bends in a horizontal plane centering on the bottle 51, so that the forward movement of the screw shaft 48 is not obstructed.

Similar to the aforementioned operating mechanism 28, this operating mechanism 45 also becomes finely adjustable because the more the screw shaft 48 advances, the smaller the amount of rotation becomes compared to the amount of advancement of the screw shafts, similar to a sine curve.

On the other hand, the second fixing member 38 as a mounting member is attached to the support column 52.
It is fixed by bolts 54 to a fixing plate 53 fixed to the upper end of the plate.

By the way, a through hole 22a is formed in the bottom plate of the first fixed member 22 as a rotated member. This through hole 22 &
The role of this will be explained later.

By the way, the operating mechanism adopted a structure in which the screw cylinder 33 moves forward and backward by the rotation of the screw shaft 32, and the sweeping mechanism 45 adopted a screw drive mechanism in which the screw shaft 48 itself advances and retreats, but the opposite structure is adopted. Alternatively, the same mechanism may be used. Of course, the operating mechanism is not limited to the screwdriver mechanism, but any mechanism that can be pushed and pulled may be used.

Further, although the guide of the rotating frame 20 is configured by the arc-shaped elongated hole 24 and the bolt 5, it goes without saying that a cam surface or other guide mechanism may be employed.

Further, the rotating plate 40 has a concave portion 3 formed in the second fixed member wing.
Although a structure is adopted in which the rotation is guided by the upper surface of the guide plate 39, which is rotatably fitted into the guide plate 8a, other guide mechanisms such as those using bearings may be used. Of course.

Next, a method of using and operation of the angle adjusting device having a wooden surface constructed as described above will be explained.

First, the azimuth angle allows the entire parabolic antenna system to receive microwaves from geostationary satellites.

Roughly set the parabolic antenna device so that it almost matches the elevation angle.

Subsequently, the bracket 50, the bin 51 .
The rotary plate 4o is rotated in either the left or right direction in the horizontal plane via the arm 47, and the azimuth angle is finely adjusted.

The azimuth angle can be determined using, for example, a scale (
(not shown) may be determined.

Subsequently, the parallel shaft 32 is rotated via the knob 36, the threaded cylinder 33 is moved forward and backward, and the rotation frame 2o is rotated in either the up or down direction to determine the elevation angle.

Even in this case, the elevation angle can be determined by using a scale (not shown) formed on the rotation frame 20. In this way, the azimuth and elevation angles can be determined accurately.
If the antenna resonates due to strong winds, it will inevitably become misaligned over a long period of time.

Therefore, the through hole 27 formed in the rotating frame 2o and the fixed frame 2
After determining the angle, use a drill to drill a hole through the through hole 22 & formed in the fixing frame 22 & on the side surface of the fixed frame 22 & and the spacer 37. Good.

In this way, the azimuth and elevation angles can be reliably and finely adjusted, and the determined angles can be reliably fixed so that they do not shift.

By the way, in the above-mentioned embodiment, the parabolic antenna device was explained as an example of a precision instrument, but it goes without saying that the present invention can be applied to other precision instruments, such as a general antenna device for a surveying machine, etc. According to this method, it is possible to easily and accurately adjust the angle, and coarse adjustment and fine adjustment can be performed in one operation.

[Brief explanation of the drawing]

Figure 1 is a perspective view illustrating the conventional structure, and Figures 2 and below are the first diagram of the present invention. Embodiment 2 is explained, in which Fig. 2 is a perspective view, Fig. 3 is a vertical side view, Fig. 4 is a plan view of the rotating frame and the first fixing member, and Fig. 5 is a plan view of the whole. It is. 20... Rotating frame as a rotated body, 22... First fixing member (in the first embodiment, a second rotating frame as a mounting member)
In the embodiment, as rotated members), O...shaft,... through hole, A, 45... operating mechanism, 30, 47...
...Arm, 32 degrees...Screw shaft, 33...Screw tube, 3
4, 50...bracket, 36, 36 &...
Knob, 37... Spacer, A... Second fixing member as a mounting member, 39... Guide plate, 40... Rotating plate, 44... Space portion. Figure 1

Claims (3)

[Claims] (1) A mounting member, a rotatable member attached to the mounting member so as to be rotatable at a predetermined angle in a predetermined direction, and a rotating member disposed on the mounting member with a chauchi mechanism. 1. An angle adjustment device for a precision instrument, characterized by comprising an operating member that is rotated in a desired direction through an operating member. (2) The rotating frame as the rotated member is pivotally supported by the first fixed member as the mounting member, and the guide mechanism is mounted on the first fixed member as the mounting member or as the rotated member. A long hole that is concave with respect to the support shaft is formed on one side of the rotating frame, and a hole is formed on the other side at a corresponding position, and the structure can be tightened at any position using a member. An angle adjusting device for a precision m-meter according to claim 1, which is characterized by: (3) The guide mechanism has a structure in which the rotary plate is pivotally supported with respect to the second fixed member as the mounting member so that movement of both sides is restricted, and the first member as the rotated member is 2. The angle adjusting device for a precision instrument according to claim 1, wherein a fixed member is connected to the rotary plate, and an operating part is connected to the rotary plate via a link.