SU1613421A1 - Apparatus for checking operation of hoisting gear - Google Patents

Abstract

This invention relates to a lifting and transport machinery industry and can be used to control lifting and transport installations in the coal and ore industries. The purpose of the invention is to increase accuracy and reliability. The device contains a disk with teeth 2 and semi-teeth 3, track sensors 4 mounted in a shaft on fixed horizons with the ability to interact with lifting vessels / PS / 5 attached to the rotation element of the trailing body and made in the form of radiation sources 7 ... 10 and receivers 11 ... 14, installed with the possibility of interaction with teeth 2 and semi-prongs 3, generator 15 clock pulses, blocks for determining speed 16 PS 5, determining stop 17, determining movement direction 18, an operator console 19, a location determination unit 20 of the MS 5, a rope slippage determination unit 21, and an indication and alarm unit 22. During the rotation of the cable guide organ 1, the teeth 2 and the semi-prongs 3 move in the field of influence of radiation sources 7 ... 10 to the receivers 11 ... 14. As a result, single signals are generated that are fed to blocks 16, 20, and 18. In block 16, pulses are fed to the readout input of the memory node, allowing the sample of the moving speed of the substation 5 recorded in it. The output signal of the block 16 is sent to blocks 22 and 17. Block 18 receives signals sequentially from receivers 12, 13, 14, or from receivers 14-13-12. Accordingly, the information on the direction of rotation is fed to block 22, where it is indicated, as well as to block 20. The counter in block 20 adds or subtracts pulses and generates a signal about the location of PS 5, which is sent to blocks 21 and 22. The sensors 4 are corrected by the actual position of the PS 5. 7 Il.

Description

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modulation with lifting vessels (PS) 5, Turnover and motion direction sensors, made in the form of radiation sources 7-10 and receivers 11-14, installed with the possibility of interaction with teeth 2 and semi-teeth 3, generator 15 clock pulses, speed determining units 16 PS 5, determination of stop 17, determination of the direction of movement 18, the operator console 19, the position determining unit 20 of the substation 5, the unit 21 of the slippage detection of the rope 6 and the indication and signaling unit 22. During the rotation of the leading body 1, the teeth 2 and the semi-teeth 3 move in the field of influence of radiation sources 7-10 on receivers 11-14. As a result, unit signals are formed. The invention relates to a lifting and transport engineering and can be used to control lifting and transport installations in the coal and ore industries.

The purpose of the invention is to increase accuracy and reliability.

FIG. 1 shows a structural diagram of the device proposed: FIG. 2 is a functional diagram of a unit for determining the speed of movement of a lifting vessel; FIG. 3 is the same with the stop determination unit; 4 is the same as the block for determining the direction of movement; Fig. 5 shows the same, the unit for determining the location of the vessel; Fig. 6 - the same, rope slippage determination unit; figure 7 - scan disk.

The device contains a disk with teeth 2 and semi-prongs 3 attached to the rotation element of the trailing body, track sensors 4 installed in the mine on fixed horizons with the ability to interact with lifting vessels 5 suspended on the ropes 6, turn-on and motion direction sensors made in the form of sources 7-10 radiation and receivers 11-14, installed in such a way that between the radiation source 7 and the receiver are located both teeth 2 and semi-teeth 3, and between sources 8-10 and receivers 12-14 there are only teeth 2, the generator Op 15 clock pulses, the output of which is connected to the input of block 16 for determining the speed of a lifting vessel connected to the input of block 17 for detecting a stop, block 18 is defined and fed to blocks 16, 20 and 18. In block 16, pulses are fed to the input of the memory node ti, allowing sampling of pre-recorded information about the speed of movement of PS 5. The output signal of block 16 enters blocks 22 and 17. Block 18 receives signals in series from receivers 12, 13 and 14 or from receivers 14, 13 and 12. In accordance with with this information about The rotation is applied to block 22, where it is indicated, as well as to block 20. The counter in block 20 sums up or subtracts the pulses and generates a signal about the position of PS 5, which is sent to blocks 21 and 22. The signals from track sensors 4 are corrected position of PS 5. 7 Il.

neither the direction of movement, the console 19 of the operator, the output of which is connected to the input of the block 20 for determining the location of the vessel connected by the output with the inputs

rope slippage determination unit 21 and indication and alarm unit 22. The block 16 for determining the speed of movement of the lifting vessel comprises a delay element 23 connected by an output to

the reset input of the pulse counter 24, which forms the address of the sample of the memory cells of the memory node 25, in which the corresponding speeds of movement of the lifting vessel are recorded, the element is NOT 26. Block 17

stop detection (FIG. 3) is made in the form of a null organ 27. Block 18 for determining the direction of movement contains elements HE 28-30, RS flip-flops 31-35, and elements 36 and 37. Block 20 determining

the location of the vessel (Fig.5) co; 1 holds the element OR 38, the key 39, the reversible counter 40 and the element NOT 41.

The rope slippage determining unit 21 comprises a series-connected element OR 42, a key 43, a reversible counter 44, a memory node 45, a comparison node 46 D-flip-flop 47, a HE element 48 and a delay element 49. The sweep of a disk fastened to the rotation element of the trailing unit of the hoist (Fig. 7) is a tape with teeth 2 and semi-teeth 3, which is either the actual rim of the lobovina, or is pre-assembled

to rim loboviny. The teeth 2 and semi-teeth 3 are evenly spaced at a pitch of 30-50 mm, and the teeth can be distributed

the length of the circumference loboviny both evenly and unevenly. The size of the teeth should be 20-40% of the width of the tape. In this case, the conditions of simplicity and low cost of manufacturing such a travel information generator are achieved. The display unit 22 is a set of indicators with corresponding decoders depending on the form in which it is necessary to provide information on the operation of the lifting machine.

The device works as follows.

During the rotation of the cable-breaking organ 1, the teeth 2 and the semi-prongs 3 of the disk move in the field affected by the radiation source 7-10 to the radiation receivers 11-14, while blocking the light streams coming from the sources 7-10 and to the receivers 11-14 during their movement. When light hits receivers 11-14, they form single signals, and when overlapping the incident light flow, zero signals are formed by teeth 2 or half teeth. From receiver 11, signals arrive at block 16 for determining the velocity of the vessel and block 20 for determining the position of the vessel, in which the elements 26 and 41 are inverted respectively. In block 16 (FIG. 2), pulses from photocell 11 (after inversion) are fed to the read input of the block 25 of the memory, permitting the reading of the previously recorded information about the speed of movement of the lifting vessel at the sampling address generated by the pulse counter 24. In order to form the corresponding speed of the address vessel moving, the counter 24 from the clock pulse generator 15 is supplied with clock signals that the counter 24 reads between the pulses from the receiver 11. which are delayed by the delay element 23 for the time required for the memory 25 to operate. The output signal from the memory block 25, corresponding to the speed of vessel movement, is supplied to the display and alarm unit 22 for indication, as well as to the stop determination block 17.

In block 17 (FIG. 3), it is checked (for example, by using a null organ 27) the presence of a unit in at least one bit of a multi-bit parallel code. If in all bits of the speed code only zero signals are present, then the lifting vessel is quiescent, information about which is sent to block 22. If at least one of these bits has a single signal, then the lifting vessel moves,

information about this also goes to block 22.

The unit 18 for determining the direction of movement of the vessel (Fig. 4) receives signals from photocells 12-14, where they are inverted by the HE elements 28-30, and then they are fed to the logic circuit of the unit 18. Which works as follows. Since the cable guide body 1 can rotate either one way or the other, the photo cells 12-14 can form zero signals either in the sequence 12-13-14 or 14-13-12. In this case, one of the radiation receivers 12-14 forms a zero signal, and the other two are single (Fig. 7).

When the traversing organ 1 rotates in one direction, for example, in the direction 12-13-14, which corresponds to the downward movement of the vessel, first the trigger 31 is set to one state, and the triggers 33 and 34 are set to the zero state, then to one state Triggers 32 and 34 are set, and trigger 36 is set through element 36 as well. If trigger does not change in the direction of organ 1, the trigger state 35 is constantly confirmed. When rotating the track-laying organ 1 in the other direction; 14-13-12 - first, the trigger 33 is set to one state, then triggers 32 and 34 are set to one state, and through element 36, the trigger 35 is permanently confirmed, if the direction of rotation of the organ 1 does not change. Information about the direction of rotation enters unit 22 and is displayed.

Taking into account the direction of rotation in block 20 (FIG. 5), the location of the vessel 5 is determined. For this, the signal from the direct output of the trigger 35 is sent to the control input of the key 39. Moreover, if the control input of the key contains a single signal, then the key 39 connects its input to the first output connected to the addition input of the reversible counter 40, and if there is a zero signal at the control input, then the input of the key 39 is connected to the second output connected to the subtraction input of the counter 40.

At the input of the key 39, pulses are received through the element 41 from the photocell 11 by rotating the organ 1 and moving the vessel 5. These pulses, depending on the direction of rotation of the organ 1, are fed either to the summing input or to the subtracting input of the counter 40, where the signal corresponding to the location of the lifting vessel. From counter 40 output

information about the location of the vessel is taken and arrives at blocks 21 and 22. Moreover, the device provides for the possibility of correcting the actual position of the vessels by signals from stationary track sensors 4 permanently installed at the control points of the shaft, the information from which is fed to the rope slippage determining unit 21. From block 21 to block 20, a recording resolution signal (via the OR element 38) is input to the recording resolution input of the reversible counter 40), as well as an information signal about the exact, corrected position of the lifting vessel 5 (to the information input of the reversible counter 40).

The write enable signal can also flow to block 20 from operator console 19. The output signal from block 20 is supplied to block 21 and block 22 of the display. In block 21 (Fig. 6) the vessel position is corrected and the rope slippage is determined. The signals from the track sensors installed in the control points of the shaft from each other at a distance of 10-50 m, go to the circuit 42. Due to the fact that the lifting vessel 5 can interact with only one track sensor 4. At the same time, one track sensor 4 will generate a single signal, and the rest of the track sensors will generate zero signals.

When the vessel 5 moves in the shaft of the shaft between the sensors 4, zero signals are taken from all sensors 4. The signal from the track sensors 4 through the element OR 42 and the key 43 is passed to the input of either adding or subtracting the reversible counter 44. And. if at the control input of the electronic key 43 there is a single signal. the input signal of the key 43 arrives at its first output and is fed to the input of the addition of the counter 44. If the control input of the key 43 is a zero signal, then the signal from the input of the key 43 through its second output goes to the subtracting input of the counter 44, where the sampling address is formed from the memory node 45 of the actual location of the lifting vessel 5, information about which is preliminarily entered into memory block 45 and read immediately when the sampling address is received, and up to pos upleni new fetch address. From the output of memory block 45, the information signal is fed to positioning unit 20 and to the second (B) input of comparison unit 46, the first (A) input of which receives an information signal from determining block 20

location of the current position of the vessel in the shaft of the mine.

In the absence of slippage, i.e. when the input codes of the node 46 are equal, comparing the output () of the node 46, a single signal is generated that arrives at the D-input of the trigger 47, to the C-input of which through the line 49 with a delay corresponding to the response time of the nodes 43-46, enters output signal from the output of the element OR 42. Set the trigger 47 to one state.

When the ropes slip, i.e. with the inequality of the input codes of circuit 46, on

5, the output (A-B) of the comparison circuit 46 generates a zero signal, which, on a signal at the C input of the trigger 47, sets the trigger 47 to the zero state. The signal from the direct output of the D-flip-flop 47 goes to block 22

0 indication and alarm, and through the element NOT 48 in block 20 positioning.

Claims (1)

The invention of the Device for monitoring the operation of a lifting machine, containing track sensors installed in the mine with the ability to interact with the lifting vessel, connected to the corresponding first inputs of the slip detection unit 0 ropes, speed sensor connected to the input of the unit for determining the location of the vessel connected with the output to the first input of the display and alarm unit, the second input of which and the second input of the block 5 rope slippage detectors are connected to the output of the directional detecting unit connected by an input to the sensors of the direction of movement, the third input of the display and signaling unit is connected to the output of the rope slippage determining unit, in order to improve accuracy and reliability equipped with units for determining the speed of moving the lifting vessel, determining the stop, the operator’s console, additional track sensors installed at fixed levels of the mine with the possibility of Interaction with a connected vessel, an additional sensor for the direction of movement, a disk made with teeth and semi-prongs and mounted on the rotation element of the cantering body, the sensors of rotation and movement control are made in the form of radiation sources and receivers and are installed with the possibility of interaction with teeth and discs half-teeth, units for determining the direction of movement, vessel location, slippage the rope, indication and signaling are provided with additional inputs and outputs, the block determining the speed of movement of the lifting vessel with the first input connected to the speed sensor, the second to the output of the clock generator, and the output to the first additional input of the display and alarm unit and the input of the stop determining unit connected the output to the second additional input of the display and alarm unit, the unit for determining the direction of movement by the additional input is connected to an additional sensor on displacement, and the output to the first additional input of the vessel positioning unit, the second additional input of which is connected to the output of the control panel, the third and fourth, respectively, with the first and second additional outputs of the rope slip determining unit, the first additional inputs of which are connected to the additional track sensors, and the second to the output of the vessel positioning unit, while the block for determining the speed of movement of the lifting vessel contains the elements NOT The holders, a pulse counter and a memory node, one of the inputs of which is connected to the output of the pulse counter, are connected1 with one of the inputs to the output of the delay element, another input of the memory node and the input of the delay element are connected to the output of the element, the input element NOT and the other input of the pulse counter are the first and second inputs of the block, and the output of the memory node — the output of the block; the block for determining the direction of movement contains the NOT, AND elements and the RS flip-flop; the inputs of the first RS flip-flop are connected to the outputs of the elements And, one of the inputs of which are S-inputs the second RS-flip-flops are connected to the output of the first element NOT, other inputs of the And elements are connected to the outputs of the third and second RS-flip-flops, S is the input of the third RS-flip-flop of the first group and The R-inputs of the second and third triggers of the second group are connected to the output of the second element NOT, the S-input of the second RS-flip-flop of the second group and the R-inputs of the second and third RS-flip-flops of the second group are connected to the output of the third element NOT, the inputs of the second and third element are the inputs of the block, the input of the first element is NOT an additional input, and the output of the first RS flip-flop is the output of the block, the block for determining the location of the vessel contains the elements OR, NOT, a key and a reversible counter, inputs for addition and subtraction of which are connected with key outs, od the input from the KdTOporo inputs is connected to the output of the NOT element, the write input of the reversing counters is connected to the output of the OR element, the input of the element is NOT a block input, another key input, one of the inputs of the OR element, the D input of the reversible counter, and another input of the OR element respectively, the first, second, third and fourth additional inputs of the block, the output of the reversible counter is the output of the block, the rope slippage determining block contains the elements OR, NOT, delays, key, D-flip-flop, reversible counter, nodes of memory and comparison , the output of the latter is connected to the D-input of the D-flip-flop. connected to the output of the delay element, and the output to the input element is NOT, the first input of the comparison node is connected to the output of the memory node connected by the input to the output of the reversible counter, the inputs of which are connected to the outputs of the key, one of the inputs of which is the delays are connected to the output of the OR element, one of the inputs of which and the other key input are the first and second inputs of the block, the other inputs of the OR element and the other input of the comparison node are the first and second additional inputs of the block, the output of the element is NOT are output unit and the memory unit outputs and D-trigger - the first and second additional block outputs. 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