SU81025A1 - The mechanism of automatic balancing of the balance beam - Google Patents

Description

The invention relates to an automatic balanerisation of the balance beam balance, made in the form of an electric motor mounted on the beam, which is received from contacts that are closed by the balance arm, and is driven to rotate BI1GG with a balancing weight moving along it.

In the known mechanisms, however, when visually counting on the scale of the weights of the value of the balancing load, errors are possible, especially when working, for example, in warehouses.

In the proposed mechanism, this disadvantage is eliminated by the fact that the process of measuring the value of the balancing weight is automated and the value of the balancing load can be transferred to the distance, for which the automatic balancing mechanism is used.

The proposed balancing mechanism differs from those known in that, in order to transfer the value of the equilibrium of its cargo to the distance, the rocker arm is fixed / nightly into the circuit of the recording device) 5a rheostat in the form of a drum with a spiral test resistance, which moves together with a brush moving together with balance.1 load.

When using the proposed mechanism of automatic balancing of the balance beam of the balance in devices that measure variable parameters, such as differential pressure gauges and flow meters, which measure the varying pressure of gaseous media, it becomes possible to use the electrical part of the mechanism not only for remote transmission and instrument readings and their recording , but also for automatic regulation of production processes according to measured parameters.

FIG. 1 schematically shows a diagram of the aBTONraTnqecKoii mechanism: balancing weights in accordance with the invention and applicable, for example, to the weights of a differential micromanometer of a ticking tin; on fng. 2 is a cut of it but / 1/1 in FIG. one.

The balancing mechanism consists of an electric motor with a gearbox, a screw with a load and a rheostat with a brush included in the registering circuit.

The KooTokola 4, partially immersed in the bath 5 with the working fluid, is suspended from the prisms 3 to the rocker / scales equipped with the reference prism 2. Through pipes 6 and 7, the pressure of gases to be compared to the bells is supplied.

A reversing motor engine 6, switched on on day 9 of the power supply source 10, is mounted on the yoke. Switching on the electric motor: is carried out by contact arm 11 mounted on the rocker arm. P) and the balance arm balance pairing, contact 11 closes one out of contacts 12 or 13, including the electric motor.

The electric motor, through the worm gear 14, cranks the screw 15, which interacts with the nut 16, balancing the weight of the balance.

The nut is equipped with a pointer 17, indicating the weight of the balancing weight on the scale 18.

A rod 19 is attached to the nut, on which a brush 20 is attached, interacting with the helical

wire resistance 21 rheostat 22.

Zareostat rheostat on the continuation of viit 15 and is included in the circuit of the electrical measuring device. The number of interactions) I1; 1; x with the oppression of the turns of the rheostat and its resistance are varied by the iurocurion. By the interchange; by the equalization of the nut 16, which is taken into account by the measuring instrument, indicating the weight of its weight.

Subject invention

The mechanism of automatic balancing of the balance arm of the balance, performed as an electric motor simulated on the balance arm, moving the equalizing load and discharged from the contacts, closed by the balance arm, in order to transfer the value of the balance of the balance to the position of the balance, which is at the same distance, which is at the same distance, which is at the same distance, which is at the same distance, which is at the same distance, which is at the same distance, which is at the same distance, the surface is at the same distance, which is at the same distance, which is equal to the position of the load, which is at the same distance, which is equal to the position of the balance of the balance, in the case a recording instrument, a rheostat in the form of a motor rotating drum with a spiral wire resistance interacting with a brush, moving together with an equilibrium shaving load.