SU424008A1 - DEVICE FOR TESTING THE PARALLELITY OF THE VISIBLE AXIS OF A DEAF BEVERAGE AND AXIS OF ITS LEVEL - Google Patents

Description

one

The invention relates to the field of geodetic engineering, in particular to the engines for calibrating and adjusting deaf levels and can be used for machine building, shipbuilding, in the construction of tunnels and special structures.

There are known devices for checking the parallelism of the sighting axis of a deaf level and the axis of its level auth. St. No. 246090.

A disadvantage of this device is the technological difficulty of making a reference onshore iris (AR - O Dove) to deplete the required accuracy of the device. So, for the verification of the calibration and the axial condition of deaf and leveling work with an accuracy of 2-3, the resolution of the angle of the corners of the AR-O should be ± 1, which is a difficult requirement.

In order to improve the accuracy of calibration and adjustment in the proposed device, the A – O iris support is made in the form of an iris with three reflections. In particular, a block consisting of 1 can be used, which is of a glue stitch, BP-90 ° and AP-90

The use of these prisms makes it possible to increase the accuracy of verification of the fulfillment of the basic condition without presenting special technological requirements for the manufacture of onshore iris by eliminating the measurement of the errors in the manufacture of angles of angles in the orcese.

FIG. 1 and the scheme of the device is shown; in fig. 2 is a general setup diagram for monitoring the basic conditions and levels; in fig. 3, a, b - oiornna prism (A-0 °) and a block consisting of prisms BP-90 ° and AP-90, respectively.

The device contains a stand 1, provided with lifting screws for coarse leveling of the platform 2 with a support prism 3 mounted on knife supports, and also an elevator screw for precise leveling of the platform. The high-precision invoice level 4 is installed on the blade supports of the platform with the supporting prism (price of division 2).

The oiorna prism is set in such a way that it covers half of the iol of the view along the vertical; it is removable. During operation, the reference prism is rearranged by 180 °, since it was proved by mathematical calculations that for a prism with three reflections (such as Abbe’s iris), errors due to inaccuracy of making the angles nrizm are mutually destroyed, if we take as a result of measurements the average of two counts m for two prism onopHoii positions, characterized by a 180 ° rotation of the prism around a vertical axis.

The scheme (Fig. 2) consists of an explosive, turning and leveling G, auxiliary zrnTCTC.ibHoii pipe 7, as a KOTOpoii you can use a telescope of the level of the same type as the checked one, however, it should be equipped with an eyepiece of the 1st. .

The device works as follows.

The beam from the grid from the grid of the new level of 6, whose zaggelnuyu tube is illuminated through the ocular with a finger 5, passes through the device in such a way that lionoBiina pass through the supporting prism 3 ycipoiicTBa, and half of the beam is mixed. The inner edge of the reference prism leads to i-horizontal position. The monitoring of the Piedmont Piedmont with a prism is carried out at the patch level 4 of the tool. Abbs support technology Allows you to set the pipe of a turnable and leveling device into a position in which its sight is horizontal. This is done when the bottom edge of the onoric prism is located in a horizontal plane. If a parallel beam 11 passes through a reference prism parallel to the lower reflecting face, then a beam of rays emerges parallel to the incident beam; If the beam of rays is not parallel to the reflecting face of the lens, then the outgoing beam of rays is not parallel to the incident beam. Consequently, if the PA prism 11 makes a beam of rays horizontal, parallel to the horizontal, lO in the field of view 1 of the 5P011 tube absorber, the two images of the grid of the turned level align and merge into one. If, on the prism of the uchka rays, is not horizontal, two images will be obtained; horizontal grid set on a ve rm about n and led and r a.

In order to eliminate the effect of the error of manufacturing og; op ory, the operation and production is in ethane. In the nerve stage of the Elevanioins liiniio.M of the pipe 1, the overlapped 1 and 5 spur of the pO: Exhausted:. two pictures.)

n triha egki nove ;; emo-o) nvel1 pa in ole

 WASH OMO ATLI) 011. Irn. M pipe of the inverse. Is placed in the position in which the target OS)) is positioned and almost full time) (because of inaccuracies of the idle; more likely). When this is the case, the pipes of the turnable 1 and the elevator will be counted on the ocularly from l Omogatel L oi. I put on a Nriz. I turn () 180 around a vergnalki oi oei i) a1 al ;; g of blacks and take Biopo i. . Baraba) okul r 0 -o-ohm-opra in a15LA (G on cost, ravi'e to average ap and (f) e ich of y from two

counts. eleva i1oP11y .; overlapping)) its pre-coincidence. The image of G () rnzo} talpo1o n piiha her with and; grihol eye 10 o micrometer, the first of which is

Soveve S uvu about account 0 barbaru. Such a position is the P of the pipe of the overlaped level with co-operation; Orizs)) later1 And about her

iH3Hp IOii oi, richem (3 asserted 1st angles 0 0pn0li

usgraf Ilpi) pipe of turnable N 1G elira, type 1, plp 1 of the terminal 1 section. Thus, the axis of the central level () level was located) 1 ° C) C) 1 C horizontal zones C) Located 1: - i5H3i pHoii axis pn 10 10 of the ppsellir pipe.

Consequently, the pipe oh is dull about the level of 11a) allele1) Pa p, L PD 5Ichet: o.

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 for software ParaL.) H () VIZPr 0 AXIS N.IVSLIR i AXIS SGO UROVIA

ncj. St. AO 246090, about tl and h and yu e e so

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1tirov -n1, li pe support P1); lolpep

in the form of a C o rge i. 1 and the size of prism type 1 Abbe.