JPS6031012A - Gyrocompass type device for setting and measuring azimuth - Google Patents

Abstract

PURPOSE:To set an azimuth angle accurately and quickly, by mounting a gyrocompass, which is attached to a laser light emitting device, on a slide table, and fixing the slide table on a circular table. CONSTITUTION:A laser light emitting device 5 has a laser light emitting part, which can be rotated in a vertical plane. and slit shaped laser light is emitted in the vertical direction from the light emitting part. The light emitting device 5 is attached to a gyrocompass 6. The gyrocompass 6 is mounted on a slide table 7. The slide table 7 is fixed to a circular table 9.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a gyrocompass type azimuth setting and measuring device.

During plant construction work, if the absolute azimuth or azimuth from the plant standard azimuth of zero degrees for each piece of equipment, such as piping or attached equipment, is specified and installed, it is necessary to set the azimuth or
Or it is necessary to measure whether it is correct or not.

Conventional methods for measuring directions include, for example, measuring the distance from the building reference position to a predetermined position on the equipment center line using Transillar 1, etc., and finding the coordinates of at least two points on the equipment center line.
From these coordinates, we calculated the direction by 4 using trigonometric functions.

However, such conventional methods have the disadvantage that it is difficult to measure distances due to interference between several attached devices, or that it takes time to measure distances and requires division, making the work complicated. Furthermore, since the measurement was performed incrementally, the accuracy was poor.

In view of these circumstances, the present invention provides a gyrocompass-type azimuth setting and measuring device that uses the characteristic that the gyrocompass points to the north of the earth to easily and quickly set, measure, and control the installation direction of equipment. It was created to provide the following.

Hereinafter, the present invention will be described in detail with reference to the drawings.

As shown in FIGS. 1 and 2, a laser tube 1 connected to a power source (not shown), an optical head 2 connected to the laser tube 1,
It consists of a prism 4 and the like attached to the optical head 2 so that it can be rotated in a vertical plane by operating a knob 3, and a laser emitting device 5 is fixed to a gyro compass 6 so as to be able to emit laser light in the vertical direction. The gyro compass 6 is fixed on a slide table 7, and the slide table 7 is fixed on a cake collector table 9 having at least three horizontal adjustment screws 8 on the lower surface. In addition, 10 is an operation handle of the slide table 7, 11 is an operation handle of the circular table 9, 12 is a cylinder lens in the optical head 2, and 13 is a small hole.

Using the gyrocompass type azimuth setting/measuring device of the present invention having such a configuration, a snapper 16 is installed between the piping 14 in the plant building and the support frame 15, as shown in FIGS. 3 and 4, for example. When installing, first place this device at the position where the snapper of the piping 14 is installed or at a position near the vertical plane thereof, level it by adjusting the horizontal adjustment screw 8,
Accurate positioning is achieved by adjusting the slide table 7. When the gyro compass 6 is driven, the =1 path points to the north N of the earth. Here, since the deviation angle θ1 between the north N of the earth and the reference orientation N' of the building has already been determined from the setting h1, the snapper 16 is tilted over the specified orientation angle θ from the reference orientation N' to take the lobe. To do this, operate the circular table 9 to turn the laser emitting device 5 by θ1-θ2 with reference to the north N of the earth through the rotation of the gyro compass 6, and rotate the prism 4 of the laser emitting device 5 at that position. Emit more laser light.

Since the laser beam has a vertical slit shape, when it hits the support frame 15, it is projected in a straight line.

Therefore, if this position is marked, and the snapper 16 is attached between the marked point and the position where the snapper 16 of the pipe 14 is attached, it will be installed at the specified azimuth angle θ2.

In addition, in the above, even if the position of the snapper 16 and other equipment is shifted vertically, the prism 4 of the light emitting device 5 of the sea 11 can be easily rotated in a vertical plane by operating the knob 3. It can be dealt with. Therefore, even when installing a large structure, it can be done quickly.

It should be noted that the present invention is not limited only to the above-mentioned embodiments, and it goes without saying that various changes can be made without departing from the gist of the present invention.

As explained above, according to the present invention, the azimuth angle of the equipment to be taken can be set and measured with the north of the earth as a reference, so the azimuth angle can be determined by following the dimensions and using 81 calculation as in the conventional method. The azimuth angle can be set more accurately and quickly than in the previous example. In addition, the light emitted from the laser emitting device is slit-shaped, making it easy to mark vertical lines.Furthermore, the laser emitting part can be rotated in a vertical plane, so it can be installed even if there is a difference in height between the parts. There is no problem.

[Brief explanation of drawings]

FIG. 1 is a front view of the device of the present invention, FIG. 2 is a right side view of FIG. IV- in Figure 3
This is a picture of rV Yayoshi. 4... Prism, 5... Laser emitting device, 6...
J 5-11 I [J compass, 7... slide table, 9.
...Su°-Kikorabupuru. Patent application: Ishikawajima Harima Heavy Industries Co., Ltd. Patent applicant: Tokyo Keiki Co., Ltd. 6-1 Figure 2 C section

Claims (1)

[Claims] 1) Attach a laser light emitting device having a laser light emitting section that is rotatable in a vertical plane and emitting vertical slit-shaped laser light from the light emitting section to the gyro compass, and slide the gyro compass. A gyrocompass type azimuth setting/measuring device, characterized in that it is placed on a table, and the slide table is further fixed on a circular table.