SU1364683A1 - Device for actuating wings - Google Patents

Abstract

The invention is advantageously used for opening transoms of industrial sawn buildings. The purpose of the invention is to simplify maintenance. The device switches the drive from low speed to high speed by acting simultaneously on the limit switches and centrifugal couplings of the transom actuators. Along the path of movement of the switch stop nut, kinematically connected through a screw with the drive, there are travel and limit switches with opening contacts in the low speed contactor coil circuit and short contacts in the high speed contactor coil circuit. In the device, the switching emphasis is made in the tracking scale length equal to the length of the flexible coupling stop. Some pins of the trip contacts of the breakers located along the lead screw at a distance proportional to the distance between the transoms and the latching switches located on the control panel of each position are connected to the other terminals of the trip contacts and fixed switches of the other position. 3 il. i SL

Description

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The invention relates to devices with an electromechanical control of a flap, used primarily for opening transoms of industrial buildings.

The purpose of the invention is to simplify maintenance.

FIG. 1 depicts a structural

136A6832

switch 26. If the switches 16 and 17 are not pressed and their contacts 16.1 and 17.1 are not open, turns on the high speed contactor 25, its contacts 25.1 are closed and the circuit is prepared for operation in automatic control mode.

With deterioration of indoor air

device layout; in fig. 2 - Kine-ku sensor 20 feeds a signal to the open cable transmission scheme; in fig. 3 - electric circuit concept.

The device for controlling the opening of the flaps comprises a two-speed one. the actuator 1, during rotation of which the spindle screw 2 can move the nut 3, equipped with a switching stop 4. Along the spindle screw 2 are mounted switches 5-8 with contacts 5.1, 5.2, 6.1, 6.2, .7.1, 7.2 and 8.1, 8.2 respectively, the end

switch 9 with contacts 9.1 and 9.2 and limit switch 10 with contacts 10.1 and 10.2. On the control panel 11, fixed switches with contacts 12.1, 13.1, 14.1 and 15.1 are installed, respectively, switch 16 Open with contacts 1b; 1-16.3, switch 17 Closed with contacts 17.1-17.3, warning lights 18 and 19.

The sensor 20 with a contact 20.1 and the sensor 21 with a contact 21.1 is designed to open and close the transoms in automatic control mode. As these sensors, you can use sensors that respond to changes in temperature or air composition, as well as the output contacts of the time relay.

In the control cabinet (not shown), a direction contactor 22 is mounted. Open with contacts 22.1 and 22.2, contactor 23. Closed with contacts 23.1 and 23.2, contactor 24 of low speed with contacts 24.1 and 24.2, contactor 25 of high speed with Contacts 25.1 and 25.2 and switch 26 control circuits.

The cable transmission contains a rope -27, on the surface of which an emphasis 28 is made in the form of an overflow, and a centrifugal clutch 29 of the actuator.

The device works in the most effective way.

Power is supplied to the drive control circuit 1 by means of

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The connection is made by closing its contact 20.1 and the contactor 22 is turned on. Open. In turn, the contactor 22, having turned on, with its contacts 22.1 turns on the actuator 1, by means of which the stop 28 provided on the rope 27 is moved.

As a result of the interaction of the stop 28 with the centrifugal sleeves 29, the last step is triggered and the frame is opened. Simultaneously with the movement of the stop 28, the switching stop 4 provided on the nut 3 also moves and opens all the switches 9 and opens the contact 9.1 after opening all the transoms. switch off and drive 1 stop, and contact 9.2 turns on the signal lamp 18, signaling the extreme position of the switching stop 4.

In the remote-control mode, first use dialing switches 12-15 to dial the program, and then pressing the switches 16 or 17 turns on the actuator 1 to open or close the transoms. For example, to close the transoms,

0 corresponding locking switches 13 and 15, by pressing the indicated switches, their contacts 13.1 and 15.1 are opened, and pressing switch 17 and closing its contacts 17.2

5 and 17.3 turn on the contactor 23 and the low speed contactor 24, which by closing their contacts 23.1 and 24.1 turn on the drive 1. This opens the contact 24.2 of the low speed contactor 24 in the coil circuit of the high speed contactor 25. After switching on the drive 1, the switching stop 4 and the stop 28 simultaneously begin to move.

When reaching the stops 28 of the transom corresponding to the fixed switch 12, the switching stop 4 acts on the limit switch 5 and its contact 5 is switched

Combo: contact 5.1 opens and contact 5.2 closes. This does not cause the actuator 1 to switch from low speed to high speed and to trigger the centrifugal clutch 29, therefore the indicated transom does not close because the contact 12.1 in the coil circuit of the low speed contactor 24 is closed.

When the switching stop 4 acts on the limit switch 6, and the stop 28 interacts with the centrifugal clutch 29 of the transom corresponding to the fixed switch 13, due to the fact that the contact 13.1 of the latter is open and the contact switches to 6.1 (opens) and 6.2 (closed)

24, the low speed is turned off, and the spindle of the lead screw is at a distance, the high speed proportional contactor 25 is turned on and the centrifugal clutch 29 of the said transom is activated, as a result of which it closes.

Similar to that described when the stop 28 passes through the centrifugal clutch 29 of the actuator corresponding to the fixed switch 14, it does not close, and the transom corresponding to the fixed switch 15, due to switching the drive 1 from low speed to high speed and actuation of its centrifugal clutch 29 closes.

Upon further movement, the switching stop 4 acts on the limit switch 10, contact. 10.1 Ko23 Za10 .2 {Turns on the signal lamp 19.

Such an embodiment of the device allows automatic switching of the drive at a low speed 25

thirty

the second turns off the contactor and the drive 1 is closed, and the contact

the national distance between the doors and fixed switches located on the control panel, with one terminal of the trip contacts of each position, except for the end, connected to the other terminals of the trip contacts and fixed switches of a different position, and one terminal of the trip and fixed contacts switches of one extreme position through the closing contacts of the contactors of the choice of the direction of movement of the engine are connected to one phase of the motor winding, and the other terminals Utev latched switches and at the other position via break contact on a high speed and a winding speed of 40 small contactor is connected to another phase winding of the motor, wherein the closing contacts the limit switches are included in the coil circuit of the contactor high speed.

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Claims (1)

tee at high speed, thereby simplifying maintenance. Invention Formula A device for controlling the flaps, comprising a drive, a switching element connected through a screw drive with a drive, mounted along the tracking element of the switching element, electrical switches for limiting the extreme positions of the valve actuator, in order to simplify maintenance, into it low- and high-speed contactors, two directional selection contactors, a switching command forming unit, executed on path switches along the five 0 the national distance between the doors and fixed switches located on the control panel, with one terminal of the trip contacts of each position, except for the end, connected to the other terminals of the trip contacts and fixed switches of a different position, and one terminal of the trip and fixed contacts switches of one extreme position through the closing contacts of the contactors of the choice of the direction of movement of the engine are connected to one phase of the motor winding, and the other terminals Utev latched switches and at the other position via break contact on a high speed and a winding speed 0 small contactor is connected to another phase winding of the motor, wherein the closing contacts the limit switches are included in the coil circuit of the contactor high speed. five f / rz 13 t / 5 6666 18 W sixteen B cr 17 (rig. 1 28 of FIG. 2 W 17 nn / 5.J 12.1 13.1 74./ 1S.1 2 - t L T f ix- Fig.Z