SU84529A1 - A device for determining the magnitude of the area enclosed between the lines of two graphs drawn on a tape - Google Patents

Description

Determining the size of the straightening is produced in a rather complicated graphic-analytical way.

The proposed device makes it possible to automatically draw an integral curve, i.e. a graph of straightening, and thus mechanizes the process of determining the magnitude of the shift xi of any point of the existing curve to the position determined by the design angular diagram.

The device's action in determining the design shifts of an existing curve is based on the method of angular diagrams. By the method of angles, 1x dia | | amm, the shift of any point of the existing curve is defined as the difference between the nopes of the sup1, the corresponding and the design curves.

FIG. 1 diagrams: an atomic image of the proposed device with a design head, front view; pas figs. 2 is the same side view; in fig. 3-device with a leveling head, front view; tsa fig. 4- the same kind of sbukh.

The device consists of a control Ci-ol with a tape-driving mechanism and a mechanical drive, a control mechanism and a replaceable head.

The control table (Fig. 2) is laid (between the Vedas} 3 Shafts 2, with noMOHU-i which, during operation of the device, a tape is drawn through the table with 1 curved 1 on each finger. W. 2 are driven by a motor 3 through tra, the mission 4. The motor with the transmission is connected by a frontal friction Giere, a cottage, which is smoothly replaced by a change in the speed of a transmission engine or in stopping it at a constant motor speed.

№ 8452У

The control mechanism consists of two endless ceeias 5, at which a series of drivers 6, equipped with needles, are fixed at equal distances In to track the graphs on the tape moving along the control table.

Each chain is infinite isa is put on two wheels 7 and 8. Wheel 7 rotates freely on its axis, and wheel 8 is connected by a gear with B9 9 and 10.

Moving the carrier manually and tracing it with the needles of the carrier .1 the lines of the Greek alphabet drawn on the ribbon through the table / receive angular displacements of shafts 9 n 10. These angular displacements will receive a proportional increment of the ordinates of the tracked gradient. Coordinated displacements of shafts 9 and 10 will be are interconnected, since both graphs are drawn on one tape, and at the same time - with an angular displaced transmission 4, leading to; the movement of the shafts 2, leading the tape with the graphs, i.e. the angular displacements of the shafts 9 and 10 will match corner wives sci ni, ncro | 0rzio} and the corresponding abscissa.

If the proposed ycTpoiicTBo is used to determine the area between the lines of two graphs drawn on one tape, then the design head is attached to the described lechanism, for example, to determine the amount of shift tipn the graphic design of the alignment of railway curves by the method of angular diagrams. In this case, one graph will be an angular diagram, removed from H: atura, and the other will be a design angular diagram.

The design head (Fig. 1) consists of a differential, multiplying, summing, and recording or counting mechanism.

Differential 11 of the project head predn | Begins to determine the difference of the order of the graphs, which is obtained in the form of the angular displacement of the shaft 12, which is the axis of the differential satellite gearbox //. The gears of the differential gear are connected by gearing with the shafts 9 and 10 of the control mechanism.

The multiplication mechanism 13, excreted in the form of a frontal friction lane, multiplies the difference of ordinates produced by shaft 12 in the form of permutations of the driven transmission disk on the keypad 14 n. And the corresponding incremental absci::;:, specified in the form of angular displacements Front-wheel drive associated with a 4-speed transmission with transmission 4.

The product of the ordinate difference on the abscissa and the irregularity, continuously obtained as a result of the operation of the multiplying mechanism, are elements of the area, 3: a: included between the lines of the graphs. The continuous summation of these ele- ment: mental sites is accomplished with the help of a totalizer.

The summing mechanism consists of a ho | d | ovot screw, mounted on the continuation of the key shaft 14, and a nut 15 that moves along the base of the bed; and a value proportional to the area enclosed between the lines of the graphs from some starting point to the point in question.

A nut for the readings on the scale and a feather for the leprosy z-alisi of the magnitude of the moving tape 16 are associated with the nut 15.

In the case of using the device under consideration for matching a template of a graphic with a drawing, for example, a template of a charcoal diagram with a design diagram or with a diagram removed from life, a control head is attached to the mechanism described above.

In the control head (Fig. 3), in addition to the parts located in the design head, there is a copying mechanism consisting of an endless chain 17, which copiers 18 are fixed at equal distances. The chain is mounted on two gear wheels 19 and 20. Wheel 19 rotates freely on its axis, and the wheel 20 is associated with the shaft 22. In | al 22, it is connected with one of the gears differential, and 11.

A screen pattern associated with drawings made on a tape may consist of perforated sheet 21 with patch stripes (protruding from plane l; ista and having very good shape of the map being compared. Shablo. Moves in the direction shown by the arrow, in their guides 23 by means of gear wheels, mounted on the drive shaft 24 associated with the transmission 4.

When comparing schabloil with a drawing, a ribbon with a drawn line is drawn through the control table; the graph is traced: the needles drove one of the chains 5, and the translational movement of the chain is converted into angular displacement 9. Simultaneously and synchronously with the movement of the tape, the translational movement of the template 21 in the direction indicated by the string occurs. At the same time, the overhead lines will progressively move the copiers 18 and move the chain. The progressive movements of the chain are converted by the wheel 19 into angular alternations of the shaft 22 a, proportional to the increment of the ordinates of the graph given by the pattern.

The angular displacements B al and 9 and the shaft 22 are introduced into the differential 11. All further transformations are performed by a mechanism similar to the design head mechanism.

Subject invention

A device for determining the size of the area enclosed between LINEAM1I of two graphs drawn on a tape, characterized in that two lines of the device, each of which consists of a row of drove, fixed at equal distances on endless chains, connected with the driven wheels, by means of which the forward movements of the carrier are converted in conjunction with the movement of the tape into angular displacements of two shafts, proportional to the traced ordinates of the graphs, determining the difference and the ordinate plots and its multiplication by the length of the abscissa is produced by differential multiplier and a mechanism, e.g. pribor.a by the authors. St. No. 84837.

- 3 - № 84529

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