SU32737A1 - Automatic device for recording the path profile - Google Patents

Description

For automatic leveling, devices are known in which the profile of the traversing path is drawn on a rewindable, driven paper from a running wheel to a paper tape by a food tool held in a certain position with the help of a master.

In the proposed automatic device for recording the profile of the traversed path related to the specified type of automatic devices, the punch tool draws on the tape a line of the slope of the path, for which a pencil is inserted into a sleeve that carries a slider at one end, and The other end is a slider, placed in a horizontal rail, mounted on the wall of the instrument box.

In FIG. 1 is a side view of the device; FIG. 2 is a vertical cross section of the device; FIG. 3 is a section along the A B in FIG. 2; FIG. 4-chart recorded by the device, and the terrain profile.

The proposed device is mounted on a three-wheeled wagon, the front wheel / of which is connected; ano with the help of gears in front, ach2-3.4-5, b-, 10-11, 12-13 and coupling 8 with rollers 21 and rewinding paper tape No. Placed in box 24

(366)

mounted on the axis 32 of the rear wheels 37 ,. On the same axis, a tic 31 is freely fitted, having in the upper part a fork 30, in which a slider 28 is placed, connected by a sleeve 29 with a slider 26 moving in a horizontal rail 25; the latter is mounted on the wall of the box 24. A sleeve 27 is inserted into the sleeve 29, which draws the profile of the path on the paper tape 21, pressed into the roller 19. The paper tape 21 from the roller 20 is rewound onto the upper roller 20 with two clamping rollers 14 and 15 , the passage between the rollers 17 and 18 and the skolz along the outer part / roller 19. The roller 14, which sits on a common axis with the scraper 13, and receives rotational motion from it, is provided the same way as rollers 19 and 17, with side cheeks, straps blending tape 21.

The box 41 closes the slit of directing 25, the internal mechanism of the box 24 and the fork 30 with a pencil 27 and thus protects them from dust, dirt and any damage; the same role is played by the protective box 42 for the attendant 31, protecting it from impacts, on rocks, etc.

When driving, the drive wheel /, together with the box 24, depending. -; from the path profile, it is lowered, then raised relative to the axis. wheels 37.

1a the same 5 / and its fork 30 under the action of the load all the time remains on the vertical axis, therefore the longitudinal axis of the roller J9 and the guide -25 at each moment of movement form one or another angle with the vertical.

With these changes in the angles, the slider 26 with a pencil 27 under the action of the slider 28 and the fork 30 moves the guide 25 to one side or the other along the length of the roller J9 from its circumferential (middle) axis; to the right — when going up and to the left — when the slopes of the spine are sloping, as a result, pencil 27 draws on sheet 2 / in the direction of the longitudinal axis of the roller / P a straight line of a certain length, which is the leg of the right triangle. The other leg b is the distance between the axis of the wheels 37 and the point (the intersection of the longitudinal and middle transverse axes of the roller / P, taken by the device vB equal to 100 and finally, the distance in the direction of the axis of the fork 30: between the axis of the wheels 57 and the point of intersection of the axis of the pencil 27 with the longitudinal --- axis of the roller / P represents the hypoteaduz from the right triangle. At each moment the value of a t a constant value b determines the easy angle of elevation or slope of the HOCTH, and, consequently, the very angle profile

When the device is moving, the tape 27 moves with such speed that when one turns 7, the circumference of which is equal to 1 m, the tape 2 / moves by 0.5 mm, i.e. length scale is 1/2000 nat. led

During the movement of the belt 2 /, at a steady angle of terrain, the quarantine 27 draws a straight line parallel to the transverse axis of the roller / F or the longitudinal axis of the belt 27. This line remains straight until the first change of the route profile; then, at a new angle, the pencil draws a segment a and at a steady angle, again a line parallel to the longitudinal axis of the tape 27. This is drawn to the scale of / 2ооо it represents the actual length of the path traveled at this scale. If the path is horizontal, then this line coincides with the longitudinal axis.

tape 2 /, otherwise it moves from this axis to one or another distance a to one side or the other: up during ascents and down with slopes, and is a hypotenuse from a real right triangle in kind. Therefore, the plotted chart profile represents, as it were, a series of steps that rise, then descend from the mid-horizontal line 1-1 (Fig. 4).

FIG. 4, 7, 5, 7, P, and 77 are a, 2, 4, 6, 8, 10, and 72 segments;

If the pen 27 marked on the ribbon 27 segments and 22.5 mm (according to the diagram) and

 mm (which at a scale of QQQ- corresponds to 20 meters), then we have tg “

22.5 0.225 and 12 ° 41; then

100

in nature, the ascent is equal to sin 12 ° 4Г 4.4. and the horizontal distance / ccos 12 ° 41 is 19.51 m.

Putting these values of n, I or c to the desired scale, we obtain the profile of the area in the usual way.

Consider the diagram in FIG. 4 and knowing how to build it, i.e. that x7 indicates a rise over 2; 3-slope over 4; 5-slope over bits. It is not difficult, even without drawing in the usual form, to imagine the nature of the profile of the area, which will be shown in the form shown below in FIG. four.

The subject matter of the invention.

An automatic device for recording the profile of the path traveled on the rewindable paper tape by means of a writing device connected to the tangent supporting the device in a corresponding position relative to the paper tape, characterized in that, in order to draw the profile along the line tg of the track slope angles, the pencil 27 is inserted into the 2P hub, bearing on one end a slider 28 placed in the guide, fork 30 of the tandem 57, and on the other end slider 25 placed in the guide 25 fastened on the wall of the instrument box.