SU909164A1 - Device for monitoring the work of conveying and filling set - Google Patents

Description

(54) DEVICE FOR INDICATION OF WORK OF TRANSPORT-PLAYING INSTALLATION

one

The invention relates to the mining and mining industries and can be used in remote control systems for controlling transport and stowing installations of coal mining complexes.

The known device designed to indicate the operation of the sections of the mechanized lining 1.

It is also known a device for indicating the operation of a transport-stowing installation, comprising a display unit, a reversible pulse counter, the outputs of which are connected to the corresponding inputs of the OR-NOT element of the first stage of the rectangular decoder, the directional counting unit, the input unit, the object location sensor and the installation unit.

In the known device, the position sensor of the object is used to indicate the location of the plow, which monitors the direction of rotation and revolutions of the driving star on which the cylindrical magnet is fixed. In the plane parallel to the axis of the magnet two magnetic contacts are installed.

When the driving star rotates, in one direction, the first contact (first located close to the magnet during the last movement) first closes, then the second contact, then the first contact opens.

5 and then the second. When the direction of the magnet (driving star) changes, the order of contact operation is reversed. Thus, one or two contacts can be closed in the sensor temporarily. Magnetically controlled contacts switch the circuits of the input unit, which serves to calibrate the parameters of the input signals. The input unit is connected to a directional counting unit, which serves to form the summation or subtraction signals supplied to the reversible pulse counter. A pulse counter through a decryptor that generates indication signals is connected to the indicators. The counter is reset to its initial position by an installation unit. The device uses digital indicators 2.

A disadvantage of the known device is the low efficiency of the use of indicators due to the limited amount of information provided with their help - only one message at a given time.

The purpose of the invention is to extend the functionality of the device by providing simultaneous presentation of information about the movement of the executive body (its current coordinate), as well as about the size and current coordinates of the built-in space.

This goal is achieved by the fact that the device for indicating the operation of the transport-stowing installation is equipped with a trigger memory unit, a single vibrator, a pulse generator, a control logic block on the OR-NOT and OR elements, a memory signal generator, and the outputs of the directional counting unit are connected respectively to the inputs of the one-shot, the OR element of the control logic unit and the memory signal generator, the output of which is connected to the information inputs of the triggers of the memory block whose clock inputs are connected to the corresponding outputs of the second stage of the rectangular decoder, the output of each trigger of the memory unit and the corresponding output of the rectangular resolver are connected to the corresponding indicator of the display unit via decoupling keys, and the outputs of the one-oscillator and pulse generator are connected to the inputs of the OR element — NOT the control unit The output of the element OR is NOT connected to the second input of the element OR of the control logic and the output of the element OR is connected to the gate inputs of the element OR NOT pitch steps descrambler.

The drawing shows a diagram of the device.

Transport-bookmark installation

it is intended for loading, transporting and compacting the rock in the adjacent mined-out space when carrying out excavations following the clearing holes at coal mines.

The executive body of the installation is made in the form of a scraper, which captures the rock in the bunker located on the schtrek, transports it and compacts it in the developed space.

Traction body (chain) receives movement from the star drive. Simultaneously with the chain, the executive body also moves along the guides. The position of the working element - the scraper depends on the direction of its movement. When the actuator moves in the direction of laying the rock, the scraper is installed in the vertical (working) position, and when moving in the opposite direction - horizontal (idling). The change in the direction of movement of the traction body, and with it the executive body, is carried out by automatically switching when the pressure limit of the working fluid in the hydraulic system is reached. This occurs either during the compaction of IB at the end of the working stroke, or after loading the scraper with rock in the bunker at the end of idling, when the scraper reaches the stop.

The specifics of the operation of the transport and laying installation requires that the display simultaneously display information about the movement of the executive body - its current coordinate, as well as the size and current coordinates of the pledged space.

In the proposed device, an object location sensor 1 is used, which controls the direction of rotation and revolutions of the driving star on which the cylindrical magnet is fixed. In the plane parallel to the axis of the magnet, two magnetically controlled contacts are installed. In the sensor, when the drive star rotates in one direction, first the first contact (located closer to the magnet in the direction of the latter) closes, then the second, then the first contact, and then the second. When the direction of the magnet (driving star) changes, the order of contact operation is reversed. Thus, in the sensor one or two contacts can be closed simultaneously. Magnetically controlled contacts switch the circuits of the input unit 2, which serves to calibrate the parameters of the input signals. The input unit is connected to the directional counting unit 3, which serves to form the summation or subtraction signals supplied to the reversible counter of 4 pulses. The pulse counter is connected by its outputs to the inputs of the corresponding elements OR — NOT the first stage of the rectangle descrambler 5.

A binary reversible counter having a counting input and a counting direction control input is used as a reversing pulse counter, and a two-stage rectangular decryptor is used as a decipher, usually with the first stage on OR-NOT elements. In this case, the matrix descrambler of the second stage is made on the AND-NOT valves.

The information is presented in the display unit consisting of a set of single indicators 6 on the LEDs displaying the coordinates of the paving space. The counter is oriented to its initial position by the installation unit 7, which can be used to erase the information of the memory unit,

Claims (2)

The device is also equipped with a memory block 8, a single vibrator 9, a pulse generator 10 and a signal generator of the memory 11, decoupling keys 12, b: with a control logic on the elements OR NOT 13 and .OR 14. In the proposed device, the memory block 8 collected on triggers, designed to store information about the pledged space. The combined information inputs of the triggers serve to record information coming from the output of the I1 signal generator, the combined inputs serve to erase information and are connected to the unit 7 of the installation. The clock input of each trigger is connected to the corresponding output of the second stage of the decanter 5. The number of flip-flops in memory block 8 corresponds to the number of LEDs of the display unit. A single vibrator 9 serves to block the effect of the signals of the generator 10 on the gating inputs of the OR-NOT elements of the first stage of the de-distributor 5. The pulse generator 10 generates signals with a frequency of 10 Hz and serves to ensure the indicator on the linear scale blinks, signaling the current coordinate of the actuator. Shaper 11 of the memory signals serves to generate an information pulse at the moment of reversing the executive body of the transport and stowing installation. The spreading keys 12 are used to separate the power supply circuits of the LEDs. The key elements can serve as four-channel switches on MOS transistors. In this case, the LEDs are included in the drain circuits of the pairs of transistors, the gate of one of the transistors of the pair is connected directly to the corresponding output of the second stage of the decoder 5, and the gate of the second to the output of the corresponding trigger of the memory block 8. The control logic unit performs the following functions: an OR-NOT 13 element blocks the effect of generator 10 signals on the input of an OR 14 element during the action of pulses from the one-vibrator output, the OR 14 element passes to the gates inputs of the first-stage decoder 5 signals of the decoder 5 generator 10 signals pulses or a counting pulse from the output of the block 3 directional counting. The devices works as follows. When the executive body of the transport and folding installation is in the state of the SRI rest, the signals from the sensor 1 of the location of the object are not received. At this time, the counter 4 is in one of the states, and the inputs of the gating of the OR-NOT elements of the first stage of the decoder 5 receive pulses with a frequency of 10 Hz from the generator 10. At the same time, at one of the outputs of the second stage of the interpreter 5, the same pulses which arrive at the corresponding; flashing indicator and C input of the trigger of the memory block. The indicator 6 is energized and flashes in time with the iO generator pulses, signaling the current coordinate of the actuator. Since no information pulse is sent to the information input of the trigger at this time from the output of the memory signal generator 11, the trigger off state is confirmed. At the same time, the directional counting unit 3 is in one of two stable states corresponding to the previous direction of movement of the executive body, and allows the meter 4 to add or subtract pulses. When the actuator moves forward, there is a sequential closure and opening of the contacts of the reed switches, the signals from which are perceived by the input unit 2 and transmitted to the directional counting unit 3. From the output of the directional counting unit 3, the counting pulse is transmitted by the front and triggers a one-shot 9, which, in turn, blocks the effect of generator 10 on the gating inputs of the OR-NOT elements of the first stage of the decoder 5. At the falling edge of this pulse is set to "O (or confirmation of zero state) of the corresponding trigger of memory block 8. The counting pulse arriving at the input of counter 4, with the trailing edge, switches the counter (pulse addition), and the state at the outputs of the second stage of the decider 5 also changes accordingly. This, in turn, turns off the previous LED on the display bar pulsed excitation subsequent after the expiration of the dwell time of switching on the one-shot. When the actuator's forward stroke changes to reverse, the sequence of closures of the contacts of the sensor 1 of the object's location changes, the state of the directional control unit changes, a pulse that has a duration longer than the gating pulse appears at the output of the memory signal generator. shorter pulse duration of one-shot. The trigger of the memory block 8 connected to the excited output of the decipher 5 goes to the state “1”, since the falling edge of the pulse at the output of the decoder acts at the moment of the presence of the logic level “1” at the information input. With this led, which. Early blinked, emits in continuous mode. With the arrival of the next subtraction pulse, the state of the counter and decoder changes, and the previous LED is pulsed. on the display bar. Thus, the embedded space of the lava is displayed by LEDs excited in a continuous mode, and the current coordinate of the actuator is displayed by pulsed-excited LEDs. At the same time, the presentation of several messages displaying various aspects of the technological process on one linear scale using a single counter, by turning on indicators corresponding to these messages, the luminosity of which differ in the blink rate, makes it possible to increase the display efficiency. The invention of the device for indicating the operation of a transport-stowing installation, comprising an indication unit, a reversible pulse counter, the outputs of which are connected to the corresponding inputs of the OR-NOT elements of the first stage of the rectangular descrambler, the directional counting unit, the input unit, the object location sensor and the installation unit, from characterized in that, in order to expand the functionality of the device, it is equipped with a trigger memory unit, a single vibrator, a pulse generator, a control logic unit on the OR-NOT and OR elements, the memory signal generator, and the outputs of the directional counting unit are connected respectively to the inputs of the one-shot, the OR element of the control logic block and the memory signal generator, the output of which is connected to the information inputs of the memory block triggers, clock inputs connected to the corresponding outputs of the second stage of the rectangular decoder, with the output of each trigger of the memory block and the corresponding output of the rectangular decoder through the connecting keys The outputs of the one-shot and pulse generator are connected to the inputs of the OR-NOT element of the control logic unit, while the output of the OR-NOT element is connected to the second input of the OR element of the control logic unit, and the output of the OR element is connected to the gates the inputs of the elements OR NOT the first stage of the decoder. Sources of information taken into account in the examination 1. M. Rabinovich, et al. Elements and systems of automatic control of hydroficated supports. M., “Nedra, 1977, p. 196. 2. Manual of operation of ARUS 00.00.000 RE, p. 35-36, 47, 95.