SU47330A1 - Mechanical device to increase the safety factor of the electromagnet of the winding mechanism controlling the opening and closing of the signal - Google Patents

Description

On the railways for controlling long-range inputs, a so-called winding mechanism has recently become widely used.

For a reliable operation of the mechanism on the closed: the signal of the electromagnet and the plant system is adjusted so that the current of the cortex is equal to 90 mA, the drop-off is 8-10 mA.

The indicated current rates under the conditions of exploitation, due to the difficulty of keeping a 90 gpA battery in the operating battery, arbitrarily CH = 1 to 40-50 shA, thereby reducing the drop-off current to 3-4 mA. Therefore, even with an insignificant residual magnetism in the electromagnetic system, cases of non-falling of the core and, consequently, of the signal being closed, with all the ensuing consequences (as, for example, at Armavir station, Sev.-Kav, railway station, station Gaisin) are possible. South-West Railways, etc.).

To eliminate the above: drawbacks, the current of attraction of the core of the cores is reduced to 40-50 uA, and the creep current (757);.

y y cor to bring up to 50 o / o from the current of attraction, i.e. up to 20-25 tA. This will significantly reduce the battery, and the core will be completely eliminated in case of residual magnetism in the electromagnetic system.

The invention is illustrated in the drawing, in which the proposed device is shown in four positions: in FIG. 1-at the beginning of the opening signal; FIG. 2 - with an open signal; FIG. 3 - in no way close the signal of FIG. 4 - with the signal closed.

According to the invention, in the electromagnetic system, instead of the usually existing spring, two springs are inserted. One of these springs 1, which is very weak, is intended only to hold the core 3 in its late position and is connected directly to the bark. The other spring 2 is stronger, by means of the lever 4 mounted on the eccentric lever 5, it acts on tearing only when the winding mechanism is working and opening the signal .;

As can be seen from FIG. 4 of the drawing, in which the signal is shown in the closed position, the proposed device consists of a lever 4. rotating on an axis 6 attached to an eccentric lever 5; under the action of the spring 2, the lever 4 with the end of the arm 7 closed at the signal always presses against the finger 10 of the lever 5.

When the eccentric lever 5 moves to the left or to the right, the lever 4 with the spring 2 moves together with it,

FIG. Figure 1 shows the position of the device at the beginning of the opening of the signal. Anchor 3 electromagnification is shown attenuated. Bracket 8 made a turn on axis 9 to the left and with its upper part released the end of the rocker arm I, and the lower one came to the end 12 of the lever 4. Anchor 3, until the winding mechanism came into effect, is only under the action of a weak spring 1. In the open signal, the device takes The position shown in FIG. 2 drawings.

As can be seen from FIG. 1 and 2, when the mechanism is open to open the signal, the lever 4. moving together with the eccentric lever 5 to the left, the end 12 will push the lower part of the bracket 8, try to tear the measles 3 off the electromagnet. At the time of full discovery

The signal of the pull-off pressure of the lever 4 on the bracket 8, and then, and on the measles 3 electromagnets will be maximum ..

When the mechanism closes the signal, due to the decay of the core when the electric circuit is broken, supplying the electromagnet (Fig. 3, which shows the beginning of the signal closure), lever 4 together with the eccentric lever 5 will take its original position and the measles 3 will remain only under its action weak spring I (Fig. 4).

Subject invention

Mechanical device for increasing the safety factor of the electromagnet of the winding mechanism, controlling the opening and closing of the signal, using a spring directly connected to the core of the electromagnet and working away from the core of the latter, in order to additionally affect the measles during operation of the mechanism on the opening of the signal, applied on the axis associated with the controlled drive of the signal by an eccentric lever 5, lever 4, one arm of which is connected by a spring 2 with a lever 5 th and another prednaznachono for acting on the armature of the electromagnet.

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