SU1641992A1 - Device for remote control of working-face machine - Google Patents

Abstract

The invention relates to mining and m. used in remote control systems for shearers. The purpose of the invention is to increase occupational safety and improve the operational characteristics of the device. The device contains a battery (AB) 1, a time relay (PB) 3, a control panel (PU) 9. connected via radio to receiving element 7, a decoder 16, a relay 10 and 17 with contacts 11, 12 and 18, 19, actuators 20, remote control circuit 13 by starter 14 with button 22 Stop, diode 23 and shunt resistor 24, power supply 15. Limiting resistor 21, key 4, display unit 5, power supply intelligence element 6 and signal analyzer 8 . Before turning on the combine in remote mode, the driver with PU 9 approaches the combine. Making sure there are no people near the combine, he presses the Start button 2 located on the combine. The voltage of АБ1 is powered by РВ 3, which switches the key 4 with its contact. The voltage of АБ 1 is fed to the display unit 5 and through the power supply element 6 7 and the analyzer 8. After verifying by block 5 that the device is in normal operation, the driver is removed from the combine to a safe distance and turns on PU9. The signal PU9 is perceived by the element. Contacts 18 and 19 of relay 17 close circuit 13 with starter 14 and turn it on. You can turn off the starter 14 with the button 22 Stop, with the drain button on PU9, or by turning off PU9. Thus, the inclusion of the combine is possible only after visual inspection of the situation in the mine. 1 il. yo d oh oh

Description

The invention relates to mining and can be used in remote control systems for shearers.

The purpose of the invention is to increase occupational safety and improve the operational characteristics of the device.

The drawing shows a block diagram of a device for remote control of a downhole machine.

The device contains a battery 1, a button 2 Start, a relay 3 time, a key 4, a display unit 5, a power supply isolating element 6, a receiving element 7, a signal analyzer 8, a remote control 9, a first relay 10 with contacts 11 and 12, remote control circuit 13 by starter 14, power supply 15, decoder 16, second relay 17 with contacts 18 and 19, actuators 20, current limiting resistor 21. Remote control circuit 13 contains a Stop button 22, a diode 23 and a shunt resistor 24.

The device works as follows.

Before turning on the remote mode combine, the driver with remote control 9 in his hands approaches the combine and making sure that there are no people in the zone of his dangerous action, as well as in the zone of possible coal and gas emission, and also the mining and technical condition For normal, presses the Start button 2, located directly on the combine.

When the Start button 2 is pressed, the voltage of the battery 1 is fed to the first input of the relay 3 times and starts it. The output signal of the time relay 3 is fed to the control input of the key 4. After the key 4 is closed, the battery voltage is fed through it to the input of the display unit 5 and through the isolating element 6 of the power supply circuits made on the diodes to the power inputs of the receiving element 7 and analyzer 8 signal. The driver who manages the downhole machine, having made sure, by the signals of the display unit 5, that the remote control device is functioning normally, moves away from the bottomhole machine for a safe distance and turns on the remote control 9. The time delay required for this is set by time relay 3.

The signal from the control panel 9 is received by the receiving element 7 and from its output is fed to the information input of the signal analyzer 8. If the structure of the synchronizing elements of the received signal corresponds to the specified one, then the analyzer 8

The signal turns on the relay 17, the winding of which is energized by the voltage from the output of the key 4. Contacts 18 and 19 D, 17 close the circuit 13 of the distance-MV. about admin,. press starter 14

and includes it. The power supply voltage is supplied from the power source 14 to the input of the power supply source 15, the output voltage of which is supplied to the first input of the isolating power supply element 6, the relay coil 10

0 and the power input of the decoder 16, to the information input of which is fed a signal from the output of the receiving element 7. The work enable signal transmitted by the control console 9, after decryption, comes from

5, the first output of the decoder to the winding of the relay 10. The contact 11 of this relay, connected to the second inputs of the time relay 3, resets its exposure time. After that, the key 4 opens and the relay 17

0 is turned off, however, the starter 14 remains on due to the contact 12 of the relay 10 connected in parallel to the contact 19 of the relay 17. In this case, the remote control device is powered from the network source 15 of the power supply 15, and the battery 1 is recharged from the first output of the power supply circuit element Disconnecting the device can be made by pressing the Stop button on the remote control 9, which turns off the work enable signal (conventionally not shown), by pressing the button 22 Stop circuit 13 of the remote control unit by actuator 14 or by turning off the console

5 9 controls

Thus, in the device, power is switched on to the downhole machine remotely from the control panel, but this can be done only after

0 press the Start button on the bottomhole machine, which excludes the possibility of switching on the combine without first visually monitoring the situation in the bottomhole

The energy of the battery is consumed to power not all the equipment, but only the receiving element 7 and the signal analyzer 8, which makes it possible to reduce the capacity of the batteries and improve the intrinsic safety of the system.

0 These features increase the safety of the device compared to the prototype.

When removing power from the bottomhole machine, the energy from the battery is not consumed, the receivers are de-energized.

5 This increases the reliability of the device and eliminates the possibility of false positives from interference.

The CIGREP of the bottomhole machine switch is the control panel signal itself,

having a certain structure. Therefore, there is no need to transmit a special Start command in the control channel, which reduces the required information capacity of the equipment and improves the ergonomic characteristics of the control panel.

Resetting the time relay by contact 11 of the first relay 10 and opening the key 4 as a result allows remote switching off of the actuator immediately after turning on the power supply of the bottomhole machine, regardless of the time interval, by pressing the Start button and turning on the control panel.

The presence of the display unit 5 allows visual control of the device’s performance and voltage on the battery before turning on the control panel.

Claims (1)

Invention Formula A device for remote control of a downhole machine, containing a battery, a time relay, a remote control connected via radio to a receiving element whose output is connected to a decoder, the first output of which is connected to the first output of the first relay, and the second to actuators The first closing contact of the first relay is included in the remote control circuit of the starter, the power circuit of which is connected to the input of the power source, characterized in that, in order to increase safety .- ten 15 20 25 thirty 35 labor and improve device performance; it is equipped with a signal analyzer, a display unit, a key, a power supply element, a start button, a current limiting resistor and a second relay, the first closing contact of which is connected in parallel with the first closing contact of the first relay starter control, and a second closing contact is connected between the second and third wires of the starter’s remote control circuit, the output of the power supply is connected to the second output of the first relay and the power input of the decoder, as well as the first input of the isolating power supply unit, the first output of which is connected via a current limiting resistor to the battery, the key input and the first output of the Start button, the second output of which is connected to the time relay input The output of which is connected with the control input of the key, the output of which is connected to the display unit, the first output of the second relay and the second input of the isolating power supply, the second output of which is connected to the first input of the analyzer signal and the input of the receiving element, the output of which is connected to the second input of the signal analyzer, the output of which is connected to the second output of the second relay;