SU40593A1 - Automatic Surveying Instrument - Google Patents

Description

Known automatic devices for geodetic surveys, equipped with a tablet, moved with the help of a rack when rotating the wheels of the cart. In the proposed automatic 13 rib, when the wheels of the cart rotate, the tablet moves relative to a stationary pencil. On the hub of each wheel are eccentrics fitted with a handle to bring the instrument into a horizontal position on the level.

In FIG. 1 is a side view of the device; whitefish. 2 - its top view; FIG. 3 is a front view of it; FIG. 4 and 4 - view in two projections of the reticle with diopter; FIG. 5 and a b-view in two projections of a wheel hub allowing the axis to be raised or lowered to bring the baseline to a horizontal position; FIG. 7 and 8 are views in two projections of a device for decoupling a bevel gear from a stand-point frame; FIG. 9-scheme of the device.

The proposed automatic device for geodetic surveys (Figs. 1 and 3) is made in the form of a cart with wheels / equipped with a tablet 13, which can move relative to a stationary pencil 12. Movement from the wheels 7 is transmitted to the stand 9 and the tablet 13 by means of a stand 7 and ko ( 437)

pinion gear 8, clamped screw 8a. An alidad (Fig. 4) is installed on the tablet with diopters 77 (predmed) and 18 (ophthalmic). The pencil 12 is fixedly mounted on the strip 7 /, which in turn is supported on guide posts 10. Eccentrics 3 (Fig. 5 and 6) with a handle 5 are placed in the horizontal hub 16 of each wheel in the hub 16 of each wheel. . Hundred to 7 passes through the fixed coupling 2 and the movable 4.

Roughly the tablet 13 is placed in a horizontal position by mounting the wheels and lowering and raising the stand 75.

The exact setting is performed in the lateral position by turning the eccentrics 3 by the handle 5 and in the perpendicular rotation of the brace 14. The tablet 75 rotates freely on the stand P and can be fixed in any position by screw 27. In addition, the entire upper part of the menzule, alidade, rotates around stand 7 and can be hooked by screw 6.

To move the board from the shifted position to the initial bevel gear 8, it goes down, the clutch with the stand 9 is disengaged and the board is shifted to the normal position.

whereupon the gear is raised again and secured with a screw 8a (Fig. 3).

The guide posts 10 are attached so that the line connecting their blade (according to the drawing) is parallel to the line of movement of the tablet J3. A kipregel ruler is attached to them when sighting.

 The pencil / 2 is designed so that it can be put and secured at any point of the scale; so as not to interfere with the sight, he leans to the side.

For measuring inaccessible distances, a kipprigel has a distance measuring device.

Let us suppose that it is necessary to sleep circuit A, B, C (Fig. 9). The barrow is placed at point A, centered relative to point a, taken on the plan, and driven to a horizontal position. The tablet 13 is fixed to the stand 9, and the alidade is fixed with the screw 6.

On the plate 13, a kiporel is installed and, turning the alidade together with the kipregel, sight at point 5,; alignment in the direction of milestones B.

Upon arrival at point B, at the end of the drawn line, put point b; the board

from the shifted position to the initial position, the tablet is also centered and adjusted to the horizontal position. The kipregel is placed on the pins, the alidade is unfastened, and then it is sighted to point C. In this position, the alidade is fixed again. After that, the base plate is uncoupled, the kipregel is put to the drawn line Lа, and the board is turned until the line La becomes parallel to the line BA (it is sighted on the pole L); in this position the board is fixed. After this, the scale is removed and moves in the direction of point C, etc. Now the movement lines of the stand 15 and, consequently, of the entire scaler, to the line ab will occur at an angle abc corresponding to the angle ABC on the ground, and pencil 12 will draw a line be , respectively, equal (in scale) and parallel to the aircraft line on the ground.

The subject matter of the invention.

An automatic geodesic survey device made in the form of a trolley equipped with a tablet that can move relative to a stationary pencil while rotating the forest of the trolley, characterized in that eccentrics 3 having a handle 5 are placed in a horizontal position in the hub of each wheel.

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