SU1192083A1 - Collector d.c.-to-a.c.converter - Google Patents

Abstract

DIRECT CURRENT IN AC VOLTAGE CONVERTER containing a collector in the form of a cylindrical insulator with groups of plates, two current collection rings, mounted on a common drive shaft with a collector. brushes and electrical circuits having an input for connecting to a power source and you for connecting to a current consumer,. characterized in that, in order to expand functionality and increase reliability, the collector is provided with electrical leads electrically interconnected with the possibility of changing their number, the electrical leads are connected to the single phase of the power supply at the input, in each of the groups the plates are electrically interconnected, each plate of one group alternates with the same & same plate of another group, each of the groups of plates is connected only with its collector ring, each output ring is connected through its own a brush with a current consumer.

Description

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The invention relates to electric machines, in particular to collector current converters, and can be used as a converter. and a DC switch with centralized powering of electromagnetic coils of electric perforators.

The purpose of the invention is to expand the functionality and increase their reliability.

FIG. 1 shows a collector converter of a direct current of an electric perforator, a general view; in fig. 2 is an electrical diagram of a collector converter of a direct current of an electric perforator.

The DC collector converter consists of a collector, including a C-iero cylindrical insulator 1, a drive shaft 2, current collector rings 3 and 4, current leads 5, TOKOTTOVODASHI.THE rods 6 and 7, and electrical circuits connected in a certain way to the converter input to the output and current consumer during collector rotation.

The cylindrical insulator 1 is made of an insulating material, such as ebonite, and is fixedly mounted on the drive shaft 2. On the surface of the cylindrical insulator 1 two groups of conductive plates (lamellae) 8 and 9 are fixed, which are long with parallel to the axis of the cylindrical insulator 1 .

Each lamella In one group alternates with the same lamella 9 of the other group. All l.amel each group 8 and 9 are electrically interconnected. The number of lamellae in one group can be different and is calculated depending on the required frequency of electric perforator impact and breaking capacity at the same time as electric perforator. The number of lamellas in each group is the same. The gaps between the louvers 8 and 9 in each group must be wider than the current leads 5 in order to prevent the two lamellae from being simultaneously blocked by one current lead 5.

The current leads 5 are made of copper-graphite material and fixedly mounted in the housing of the collector converter. The number of current leads 5 is equal to the number of lamellae in each group. All CURRENT OUTPUTS are electrically interconnected and with a direct current source.

The drive shaft 2 is made of metal. The ends of the shaft 2 are supported on ball bearings 10.

The collector rings 3 and 4 are fixedly mounted on the drive shaft 2, isolated from the shaft 2 and from each other. Rings 3 and 4 are flat. Each of the rings 3 and 4 is electrically connected only with the entire group of lamellae 8 and 9.

Conductor brushes 6 and 7 are made of copper-graphite material and fixedly mounted in the housing of the collector current transformer, and when the collector rotates, they are connected to the current collector rings 3 and 4 and the output of the switchgear I, to which the current consumers, electropuncher, are connected.

Electric perforator (Fig. 1) consists of

housing 12, inside of which are located

Electromagnetic coils 13

idling 14, striker 15 and a logger 16.

For powering the converter and electric perforators with electric current, there is a bus and a knife switch 17 and 18 at the inlet, as well as a knife switch 19 and 20. 11, a knife switch 21 at the output. At the same time, one power supply bus 17, for example, plus, is connected via a switch 18 with tokopododody 5, the second bus 17, for example Miyus, through switches 18 and 19 - with bus 11. In addition, groups of lamellae 8 and 9 through rings 3 and 4 , brushes b and 7, breaker 19 are connected each separately with one of

5 tires 11. Tire 11 through the switch 20 is connected to the start of the electromagnetic coils

13 and 14 working stroke and idling. The end of the electromagnetic coil-13 is connected to the group of lamellas 8 via knife switches 21 and 20, tire 11, knife switch 19, brush 7 and

0 ring 3. End of the electromagnetic coil

14 is connected to the group of lamellae 9 via knife switches 21 and 20, bus G1, knife switch 19. brush 6 and ring 4.

DC collector works as follows.

During operation, switches 18, 19, 20 and 21 are normally turned on. The current from wired 17 through switch 18 goes to brushes 5 and when the motor rotates the cylindrical insulator 1, the lamella group 8, for example, fits to brushes 5 (Fig. 1 and 2), resulting in a current circuit, plus bus 17, switch 18, brush 5, lamella group 8, ring 3, brush 7, knife 19, plus tire I. switches 20 and 21, the end of the electromagnetic coil 13. Pass through the coil 13, current sent along the circuit: the beginning of the electromagnetic coil 13, the knife switches 21 and 20, minus the bus 11, the knife switches 19 and 18 and minus the bus 17. Semi A closed circuit is applied to the electromagnetic coil 13, which, magnetically, attracts the firing pin 15, as a result of which a blow is struck on the burr 16. With further rotation of the cylindrical insulator 1, the lamellae 8 are disconnected from the brushes 5, which are located between the louvers 8 and 9 as a result, the electrical circuit opens and de-energizes the electromagnetic coil 13. With the subsequent rotation of the qi

Claims (1)

DC COLLECTOR CONVERTER TO AC, containing a collector in the form of a cylindrical insulator with groups of plates, two collector rings mounted on a common drive shaft with a collector, FIG. 1 brushes and electrical circuits having an input for connecting to a power source and an output for connecting to a current consumer, characterized in that, in order to expand functionality and increase reliability, the collector is equipped with current leads, electrically connected to each other with the possibility of changing their number, current leads connected at the input to one phase of the power source, in each of the groups the plates are electrically connected to each other, with each plate of one group alternating with the same plate of the other Troupe, each groups of plates is connected only with its current collecting ring, each ring at the outlet is connected via its collector with the current brush _β consumer. $ 6 I 192083