SU1229798A1 - Teaching-aid device on hydrodynamic levelling - Google Patents

Abstract

The invention makes it possible to increase the effectiveness of training in an educational device for hydraulic leveling. The device contains a model of a hollow beam 3. The pressure tank 5 and the hydrodynamic vessels 8 communicating with it with paired electrodes 9 are located on the beam 3. The first electrodes of all pairs are connected to the first input of the registration unit 20 connected by the second input to the electronic switch 19 connected first entrance from vyho1 / //////////////////////////////z z // zw ///////// house code device. The tank 5 has a transparent caisson capacity 10 in which two main electrodes I and B are installed at different levels, a hollow lifting rod 12. A corresponding capacity 10 is inserted into each vessel 8. The first and second inputs of the pulse former 18 are connected to the corresponding main electrodes. The electrical input of the code device is connected to the first output of the pulse generator 18, which is connected to the second input of the key 19 by the second output. The rod 12 is kinematically connected with the code device. The third input of the key 19 is connected to the second electrodes of all pairs. The code device has a worm lifting mechanism. .13 with a code disk 15 on its axis. The disk 15 is kinematically connected through the gearbox 16 to the electric drive 17. The counting mechanism 14 is mechanically connected to the disk 15. 1 Cp f-ly, 1 ill. i W 15 16 yu ke g r oo /

Description

The invention relates to educational devices and can be used in educational devices for hydrodynamic leveling.

The purpose of the invention is to increase the effectiveness of training.

The drawing shows a structural diagram of a training device for hydrodynamic leveling.

The device contains a demonstration stand 1, lifting (leveling) screws 2, a model of a beam 3 with a cylindrical level 4 fixed on it (to bring into a horizontal position), a pressure tank 5 with liquid 6, a pressure caisson tank 7 with fixed lower // and upper electrodes, hydrodynamic vessels 8 connected to a pressure tank 5 by a hydraulic pipe T with electrode 9 installed in a coffer tank 10 of the vessel into its gas volume and connected by a gas pipe 1 through a hollow measuring tube one-piece rod 12 with pressure KeccojiHofi capacity. A screw-type lifting mechanism 13 is inserted into the hollow lifting rod. The device also includes a counting mechanism 14, a code disk 15, a gearbox 16, an electric drive 17, an imaging unit 18, an electronic switch 19 and a registration unit 20.

The code device contains a worm lifting mechanism 13. a counting mechanism 14, a code disk 15, a gearbox 16 and an electric drive 17.

Before demonstrating the operation of the pneumohydrodynamic leveling system on the demonstration stand 1, the lift beam 2 sets the model of beam 3 horizontally horizontally 4. Then, the lower electrode // pressure tank capacitor 7 is removed from the electrical contact by lifting it with the rod 12. by means of the mechanism 13 and switching on. m of the electric drive 17, while ensuring that the electrodes 9 of the caisson containers 10 of the vessels 8 are all closed with liquid. This occurs when raising the pressure box caisson 7, since the liquid 6 in the pressure box caisson, under the action of the discharge generated in the pressure caisson, is held last, creating more and more discharge. Under the influence of its gravity, the liquid began to sink lower and lower.

The discharge in the pressure caisson tank 7 creates a favorable condition for raising the liquid in the caissons of the containers 10 of the vessels 8. This liquid closes the electrode 9. This preparatory operation ends.

To demonstrate the operation of the pneumohydrodynamic leveling system, the electric drive 17 is switched on to lower the pressure coffer tank 7 and to bring the gear 16, the code disk 15, the counting mechanism 14 and the rod 12 into operation.

thereby overpressure in all gas caisson cavities, pushing fluid out of them. At the beginning of the lowering of the caisson pressure vessel 7, its lower electrode I, touching the liquid 6, sends a signal to the driver 18, which, having passed to the electronic key 19, opens the counting pulses registration unit 20 to all counters. pressure caisson 7 and different electrodes 9 in caissons 10 vessels 8 from electrode 9, impulse generator 18 passes a signal that goes to electronic key 19 and overlaps the counting of impulses on concrete meters of caisson. Thus, the counting of all counters of unit 20 is consistently stopped, including the moment when the liquid contacts the electrode B of the pressure box caisson 7. After that, the price of the pulse is determined by the distance / from the contact surfaces of the electrodes S and I and the number of pulses L fixed in the corresponding counter of block 20:

t

J i

25 The height of the electrodes And / relative to the electrode is determined from the expression

H,

14,

where N, is the number of pulses fixed by the 1-meter counter of block 20.

The distance exceeding between the electrodes is defined as the difference in the heights of the electrodes.

The proposed device |) allows you to demonstrate the operation of the pneumogidrodine.mycic system both when lowering and when raising the pressure caisson tank 7, and also using any caisson capacity of the vessels as the initial electrode.

In the proposed training department, the nagore steppe. The operation of the pneumohydrodynamic system of leveling due to the introduction of 8 transparent caisson tanks 10 into each communicating vessel, and the upper part of which the electrode 9 was transferred and fixed, the transparent caisson capacity 7 was inserted into the pressure tank 5 and provided with 3 upper parts with a hollow detachable rod 12, and all gas volumes of caissons are interconnected by a pipeline 11.

The use of the invention enhances learning efficiency.

Formula inventions

Claims (2)

1. Educational device for hydrodynamic leveling, containing a model of a 1LULL beam with interconnected pressure tank and hydrodynamic vessels with steam electrodes, the first electrodes of all pairs are connected to the first input of the registration unit connected by the second input to the output of the electronic key connected by the first input to the output of the code device, characterized in that, in order to increase the learning efficiency, it has a pulse driver, the pressure tank is transparent a caisson tank with two main electrodes installed on it at different levels and a hollow lifting rod fixed on the basis of the tank; a corresponding hydrodynamic vessel is inserted into each hydrodynamic vessel Sleep capacitance of transparent material in the upper part of which the electrode is rigidly fixed, while the first and second inputs of the pulse former are connected to the corresponding main electrodes, the electrical input of the code device is connected to the first output of the pulse former, which is connected to the second output an electronic key, wherein the hollow lifting rod is kinematically connected with the code device, and the third input of the electronic key is connected to the second electrodes of all pairs. 2. The device according to claim 1, characterized in that the code device has a worm lifting mechanism with a code disk installed on its axis, kinematically connected through an electric gearbox, and a counting mechanism mechanically connected with the code disk.