SU1446078A1 - Arrangement for program control and monitoring the run of mine hoists - Google Patents

Abstract

The invention relates to mining lifting installations and allows to increase the reliability of traveling instructions (PCs) by means of automatic diagnostics. For this device, it is equipped with three elements AND-NOT 7.9 and 10, element OR 9, sensors (D) 12 lifting depths and D 11 zero platform and two indicators 13 and 14. The outputs of elements AND-HE 7 and OR 8 are connected to the first inputs of the elements AND-NOT 9 and 10, and to their second inputs are connected the outputs of the D-flip-flops 3 and 4. The first input of the element AND-HE 9 is connected to the output

Description

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D 11, first in: soda of the element AND-NOT 10 - with the output of D 12. The outputs of the elements of the ITEET 9 and 10 are connected to the indicators 13 and 14, respectively. The information inputs of D-flip-flops 3 and 4 are connected to one output D 1 of track pulses, and both of its outputs are connected respectively to the counting and control inputs of the reversible counter 2. The outputs of counter 2 are connected to the inputs of a permanent storage node 6, the outputs of which are connected with the inputs of the decoder 5. When driving

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The invention relates to mining lifting installations and can be used to control and monitor the progress of mine lifting machines.

The aim of the invention is to increase the reliability of travel instructions by automatically diagnosing.

The drawing shows a functional diagram of the device.

The device consists of a sensor 1 for track pulses S, the output of which is connected to the counting one, and the second to the control input of the reversible counter 2 and the information inputs of the first 3 and second 4 D-flip-flops.

The synchronization inputs of the D-flip-flops 3 and 4 are connected to inputs of depifrater 5, the inputs of which are connected to the outputs of the permanent storage node 6 (ROM). The inputs of the ROM 6 are connected to the outputs of the reversible counter 2, and the outputs of the D-flip-flops 3 and 4 are connected to the inputs of the second element NAND 7 and the element OR 8.

The outputs of the elements AND-NOT 7 and OR 8 are connected to the second inputs of the first 9 and third 10 elements AND-NOT, respectively. The first input element AND NOT 9 is connected to the output of the sensor 11 of the zero platform, and the first input of the third element AND-NOT 10 - to the output of the sensor 12 of the depth of the rise. The outputs of the elements of the first 9 and third 10 emitters of AND-NOT are connected to the first 13 and second 14 indicators, respectively.

the vessel hoist down or up when issuing all the programmed PC on the outputs, respectively, of the elements NE 7 or OR 8, there will be a signal zero. If there is at least one PC that is not clear at the output of the element NAND 7 or OR 8, respectively, a signal will appear that will lead to the activation of the element NAND 9 or 10, and consequently, the indicator 14 or 13 lights up. This indicates a malfunction in the device. 1 il.

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Sensor 1 of the traveling impulses is assigned both to determine the direction of movement of the vessel of the mine hoisting machine and to output discrete signals proportional to the path traveled by the machine, for example, with a resolution of 0.01 m. When the vessel moves down from the zero platform at the second output of sensor 1, the track impulses there is a signal 1, and at movement up - a signal O.

ROM 6 is designed to program travel commands along the entire height of the climb. At its outputs, binary programmed signals appear, for example, in a binary normal code, which are fed to the inputs of the decoder 5. The binary programmed signals at the outputs of ROM 6 correspond to a given track command at a given elevation. ROM 6 is a semiconductor reprogrammable Permanent Storage Node made, for example, on K573RF5, K573RF6 chips, etc. With a small number of path commands, signals from the outputs of ROM 6 to the inputs of D-flip-flops 3 and 4 can be sent directly. In this case, the programming of the track commands in the ROM 6 is performed in the position code.

The sensor 12 of the depth of the lift is designed to signal 1 when the mine hoist reaches a predetermined depth. As the sensor 12 of the depth of the lift can be used sensor zero platform opposite skip mine lifting machine.

The device works as follows .J

When the vessel of the mine hoist moves from the zero platform, downstream from the first output of sensor 1 of traveling pulses, impulses are received at the counting input of the reversible counter 2, obviously, and the indication of the proportional paths passed by the vessel to fire. From the second output of sensor 1 of track pulses, the control input of the reversible counter 2 and the information inputs of D-flip-flops 3 and 4 receive signal 1. Information about the traveling path taken by the lifting vessel comes from the output of the reversing counter 2 to the address inputs of the ROM 6. From the output outputs ROM 6 information is posted to the inputs of the decoder 5, which includes D-flip-flops 3 and 4, and track commands to the drive control system. With all the programmed travel commands, the output of the second element IS-NOT 7 is signal O, under the action of which the third element IS-NOT 10 does not work, despite the fact that the second input contains signal 1 from the ascent sensor 12. In the absence of at least one programmed travel command at the input of the element IS-NOT 7, a signal 1 appears at its output, which leads to the operation of the element IS-NOT 10 and consequently, the t4 indicator lights up, which indicates a malfunction in the device indicating

its causes are not that the travel commanders 40 o D-flip-flops are connected to the first

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When the lifting machine's vessel moves upward, the second output of sensor 1 of traveling pulses contains signal O, as a result of which D-flip-flops 3 and 4 are switched off by the action of signals received from ROM 6 through decoder 5, and consequently, the traveling commands are reduced. At the stage and from the sensor 11, the signal 1 is sent to the input of the NAND 9 element. The NAND 9 element does not work and the indicator 13 does not come on. If there is at least one not cleared track command, a signal appears at the output of the element OR 8, which leads to the triggering of the element AND-HE 9, and

13, which indicates a malfunction in the device with an indication of the reason - not removing the track command.

Claims (1)

Invention Formula A software control and motion monitoring device for mine hoisting machines, containing a track pulse sensor, the first output of which is connected to the counting one, and the second output - to the control input of the reversing counter and the information inputs of the first and second D-flip-flops, the synchronization inputs of which are via a decoder and a constant the memory node is connected to the outputs of the reversible counter, while the outputs of the first and the second D-flip-flops are included in the circuit of the electric drive of the lifting machine, due to the fact that, in order to increase the reliability of track commands by automatic diagnostics, it is equipped with three AND-NOT elements, an OR element, a lift depth sensor, a zero-site sensor and two indicators, the outputs of the first and second second inputs of the second element AND-NOT and the element OR, the output of the zero pad sensor is connected to the first input of the first AND-NOT element, the second input of which is connected to the output of the OR element, and the output a first AND-NO element is connected to first indicator, lifting depth sensor connected to the first input of the third AND-NO element,