SU3100A1 - Automatic device for controlling electric lifts - Google Patents

Description

The proposed automatic device for controlling electric lifts is designed to reduce the number of relays and the number of connecting conductors compared with push-button control. This is achieved by servicing each individual floor or stop with not a special floor relay and a wire, like with a button system, but with a special combination of several relays and wires from among those available in the device that are not ignitable.

The drawing shows the wiring diagram for a 15-story walker.

Usually, with a keyboard system, a combination of two relays for each floor is used to control the elevator, which are turned on only momentarily, in the same time as the elevator is working, they are turned off, but it remains on for all floors: just one common additional relay.

On the proposed device circuit, six relays were used for the 15-story pickup: No. 1, L 2, M 3, M 4, No. 5, No. 6 and one common relay. ° 7. The common circuit includes: a switch for the engine 28, a solenoid brakes 29, autolostat 30 and other parts. In the cabin, there are a number of keys for the number of floors and, moreover, one key for each floor.

An example of the operation of a device after a call from the eleventh floor or from the cabin by pressing keys 3 and 5.

When you press the key of the eleventh floor, the current from the common positive wire will go in parallel through wires 3 and 5, and from there through the relay. 3 and W 5, from there to the common lead wire, contact 3 / on the brake (when the brake has not yet been lifted), wire / 2 is a common additional relay. 7 - and to the negative wire. As a result of the first moment: on, the cores of the JW 3 and.-N 5 relays are closed by three contacts each.

The core of the additional relay No. 7, rising simultaneously with -A 3 and .. 5, but with adjustable adjustable lateness, having turned the shaft 33, the ring 1m and the brushes 14 and / 5 will deliver

under the positive voltage, bus 77, and sectors 18 on the shaft 33, supported elevated relay cores. L 3 N No. 5, simultaneously the cores of the remaining inactive relays.

2nd moment of inclusion.

Che: cut middle contacts of relay No. 3 and M 5, over wire 20, will turn on the switches of floors 10, 11 A. T2, and through wire 40, turn out the switch 75. In this way, the current flow through the switch of the 11th floor, in which The keys were pressed, because from both groups of switches located under wires 20 and 40, it is one connected to the negative wire, via ODIH: from the extreme contacts of the relay M 5, through -25 or 27 buses, depending on the position of the knife switch1: atel, and through devices 28, 29, 30. wire / 2 and relay M 7. At this moment, brake 29 will be raised and contact 31 will be opened. Current in relay L 3 and L 5 will stop, but their contacts will remain closed, as the sectors on the shaft 33 will not allow them to fall to a full stop of the receiver and turn of the shaft 33 to the initial position, when the core of the M 7 falls.

It is easy to see, following the scheme, that the switches 70, 72 and 75, while under voltage, will remain without current. The cabin, therefore, stops correctly at the “11th floor.

Similarly, raising any pair of relays, two groups of switches will be under voltage; the current will be supplied only to the group that is connected to the middle contact of the left relay and will go only through that switch that is connected to the extreme contacts of the right relay. This order depends on the selected one in the diagram. grouping and connecting floor switches with corresponding relays; The following grouping is the simplest in its sequence.

With this grouping are connected

medium contacts.

Relay M 1 with the switches of the first 5 fl. № 4

 , LZ 3

 № 2

 M 1

Medium contact relay M b-extra.

SUBJECT OF AT AT E N TL

An automatic device for controlling electric lifts, characterized by such an electrical control circuit connection, that when you press a floor button (for example, the 11th), or any pair of buttons located on the bottom of the elevator (in this example 3 and 5), control current from the common wire passes through a certain non-repeatable when other buttons are pressed, a pair of relays (in this example, Л 3 and М 5) from the group of floor relays L 7, M 2, ... D 3 ..., the number of which is less than the number floors, as well as through the common for all floors additional relay -A 7, due to o, 1 0 first, the cores of the indicated floor relays, pull up and close each with three pairs of contacts connected to 77-25-27 and to the floor switches 7, 2, 3 ... 75 create an electrical circuit for the working the current from the floor switch (in this example 77), the engine switch 28, the brake solenoid 29, and the automatic rheostat 30, etc., secondly, the core of the additional relay M 7, lifted simultaneously with the core of the floor relay, but with some adjustable late , turns shaft 33 and through the rings and brushes 74 and 75 connects the sources to the current with the operating current circuit and at the same time, using the sectors 75, sitting on the shaft 33, supports the raised cores of the floor relays.

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