CN113269953A - Cable breakage prevention detection method and device for cable guide vehicle - Google Patents
Cable breakage prevention detection method and device for cable guide vehicle Download PDFInfo
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- CN113269953A CN113269953A CN202110379429.6A CN202110379429A CN113269953A CN 113269953 A CN113269953 A CN 113269953A CN 202110379429 A CN202110379429 A CN 202110379429A CN 113269953 A CN113269953 A CN 113269953A
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- G—PHYSICS
- G08—SIGNALLING
- G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
- G08B21/00—Alarms responsive to a single specified undesired or abnormal condition and not otherwise provided for
- G08B21/18—Status alarms
- G08B21/182—Level alarms, e.g. alarms responsive to variables exceeding a threshold
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Abstract
The invention relates to a method and a device for detecting the anti-breaking of a cable guide vehicle, wherein the method comprises the following steps of detecting a detection signal of the cable guide vehicle, and amplifying and filtering the detection signal; comparing the detection signal with the set signal duration according to a preset signal level early warning rule to obtain a judgment result, and if the duration of the detection signal is less than the first set signal duration, sending a control signal to control a yellow light to flash and alarm; if the duration of the detection signal is greater than the duration of the second set signal, sending a control signal to control the red light to be on normally to give an alarm; according to the invention, by detecting the anti-breaking detection signal of the cable guide vehicle, if the cable breaks or fails, a corresponding alarm control signal is sent to inform the fault condition of the corresponding type; the system can be controlled to stop running in time, production accidents are avoided, and safety is enhanced.
Description
Technical Field
The invention relates to the technical field of coke dry quenching equipment, in particular to a method and a device for detecting the breakage prevention of a cable guide vehicle.
Background
A coking dry quenching hoister system is an important device of coking equipment. The lifting machine system mainly realizes lifting and descending and integral translation of the coke tank by lifting the coke tank through a lifting appliance. The functions of filling the tank and emptying the tank are mainly realized. When the coke tank is filled, the coke tank filled with red coke is lifted to a fixed height by a lifter at the position of a lifting tower through a vertical rail, then the coke tank is wholly translated to the position of a cooling tower through a horizontal rail, then the coke tank is placed down through the vertical rail, and coke is loaded into a dry quenching furnace through a loading device. When emptying the tank, the flow is opposite. The cable guide vehicle realizes the transmission of electric power and corresponding control signals in the moving process of the elevator mechanism. The cable guide vehicle comprises a fixed guide vehicle track, an end guide wheel device, an end vehicle frame, a middle wheel device, a middle vehicle frame, a connecting angle steel, a cable clamp, a roller chain and the like. When the hoister runs, the cable trolley is driven to run on the fixed track through the structure of the hoister and the connecting device of the cable trolley, and the cable in the cable guide trolley moves synchronously with the cable trolley under the guiding action of the cable clamp. In the actual use process, the phenomena of roller chain out-groove falling and disconnection, trolley derailment and the like are caused possibly due to the fact that a plurality of transmission components are arranged, inevitable abrasion of machinery, tension change of a chain wheel and the like, the consequences of cable breakage, damage and the like in a cable guide car are caused, and once the cable breakage, damage and the like occur in the cable guide car, the coke dry quenching system is a full-automatic continuous operation control system, once the cable breakage, damage and the like occur, the replacement difficulty is large, the operation time is long, and the serious consequences of production are influenced.
Disclosure of Invention
The invention aims to provide a method and a device for detecting the breakage of a cable guide vehicle, which aim to solve the problem that the production is influenced by the breakage, damage and other faults of the cable in the prior art.
The technical purpose of the invention is realized by the following technical scheme: a cable break-proof detection method for a cable guide vehicle comprises the following steps:
the utility model provides a detection method is prevented breaking by cable guide car cable which characterized in that: the method comprises the following steps:
detecting a cable guide vehicle breaking detection signal, and performing signal amplification and filtering processing on the detection signal;
comparing the detection signal with the set signal duration according to a preset signal level early warning rule to obtain a judgment result;
if the duration of the detection signal is less than the duration of the first set signal, sending a control signal to control the yellow light to flash and alarm;
if the duration of the detection signal is longer than the duration of the second set signal, a control signal is sent to control the red light to be turned on normally to give an alarm.
In one embodiment, if the duration of the detection signal is greater than the duration of the second setting signal, after sending the control signal to control the red light to be turned on normally, the method further includes:
if the duration of the detection signal is less than the duration of the second set signal and greater than the first set duration, a control signal is sent to control the red light to flash and alarm, and a short sound is reported for alarm.
In one embodiment, the comparing the duration of the detection signal with the duration of the setting signal according to a preset signal level early warning rule to obtain a determination result further includes:
and detecting a normal detection signal of the cable guide car, receiving a translation traveling signal of the hoister, and processing the detection signal and the translation traveling signal to be used as a first signal.
In one embodiment, if the duration of the detection signal is less than the duration of the second setting signal and greater than the first setting duration, sending a control signal to control the red light to flash and alarm, and after the short sound alarm, further comprising:
if the duration of the detection signal is less than the duration of a second set signal and greater than a first set duration, generating a second signal, and performing signal judgment by combining the first signal;
if the signal is abnormal, controlling the whole program of the elevator to stop executing;
and if the signal is normal, controlling the whole program of the elevator to continue normal operation.
In one embodiment, the sending a control signal to control the red light to be turned on normally to alarm if the duration of the detection signal is greater than the duration of the second setting signal includes:
if the duration of the detection signal is longer than that of the second set signal, a control signal is sent, the man-machine interaction picture receives the control signal, the red light is controlled to be normally on for alarming, and long voice is reported for alarming.
In one embodiment, the first setting signal duration is 0.5 seconds.
In one embodiment, the second setting signal duration is 1.5 seconds.
The utility model provides a detection device is prevented breaking by cable guide car cable, includes:
the processing module is used for detecting a cable guide vehicle disconnection detection signal and carrying out signal amplification and filtering processing on the detection signal;
the judging module is used for comparing the detection signal with the set signal duration according to a preset signal level early warning rule to obtain a judging result;
the alarm module is used for sending a control signal to control the yellow light to flash and alarm if the duration of the detection signal is less than the duration of a first set signal; if the duration of the detection signal is longer than the duration of the second set signal, a control signal is sent to control the red light to be turned on normally to give an alarm.
A computer device, comprising: a memory and one or more processors;
the memory for storing one or more programs;
when executed by the one or more processors, cause the one or more processors to implement a method of cable break detection for a cable guide as described above.
A storage medium containing computer executable instructions for performing a method of cable break detection for a cable guide as described above when executed by a computer processor.
In conclusion, the invention has the following beneficial effects: according to the invention, by detecting the anti-breaking detection signal of the cable guide vehicle, if the cable breaks or fails, a corresponding alarm control signal is sent to inform the fault condition of the corresponding type; the system can be controlled to stop running in time, production accidents are avoided, and safety is enhanced.
Drawings
FIG. 1 is a schematic flow diagram of a cable break detection method and apparatus for a cable guide;
FIG. 2 is a schematic structural view of a cable guide cable device;
FIG. 3 is a schematic structural view of a cable guide cable assembly area A;
fig. 4 is a schematic structural view of a protective electrical circuit of the cable guide cable device.
In the figure: 5. a roller chain; 7. a cable clamp; 8. a cable guide vehicle driving frame; 9. the roller chain drives the trolley; 10. a cable trough; 11. a wire rope; 12. a travel switch; 13. a cable; 14. fixing a guide ring; 15. a roller chain fixing end; 16. an electrical normally closed contact of the travel switch; 17. an intermediate relay coil; 18. a PLC control system; 19. the normally open contact of the intermediate relay.
Detailed Description
In order to make the objects, technical solutions and advantages of the present application more apparent, specific embodiments of the present application will be described in detail with reference to the accompanying drawings. It is to be understood that the specific embodiments described herein are merely illustrative of the application and are not limiting of the application. It should be further noted that, for the convenience of description, only some but not all of the relevant portions of the present application are shown in the drawings. Before discussing exemplary embodiments in more detail, it should be noted that some exemplary embodiments are described as processes or methods depicted as flowcharts. Although a flowchart may describe the operations (or steps) as a sequential process, many of the operations can be performed in parallel, concurrently or simultaneously. In addition, the order of the operations may be re-arranged. The process may be terminated when its operations are completed, but may have additional steps not included in the figure. The processes may correspond to methods, functions, procedures, subroutines, and the like.
Referring to fig. 1, a cable break-preventing detection method for a cable guide vehicle includes the following steps:
100. and detecting a cable guide vehicle breaking detection signal, and performing signal amplification and filtering processing on the detection signal.
In the embodiment of the invention, by detecting the cable guide vehicle to break the detection signal, the detection signal is subjected to signal amplification processing and filtering processing because the detection signal possibly has no obvious influence or high-frequency influence. Wherein, the amplification treatment specifically comprises the following steps: the output of the preceding stage instrument amplifier enters a secondary amplifier through buffering, the stage is a programmable gain amplifier PGA, the amplified signal has the flattest frequency response characteristic after filtering, and the filtering specifically comprises the following steps: the filter is an 8-order low-pass filter, the cut-off frequency of the filter can be set from 10Hz to 100KHz in a programmable mode, secondary filtering is second-order active low-pass filtering and is used for eliminating digital interference, a band-pass filter can be selected from secondary filtering of the low-pass filtering, the lower limit cut-off frequency of the low-pass filtering is set by a toggle switch, and the low-pass filter and the band-pass filter can be accessed or skipped over in a programmable mode.
Specifically, when the hoister moves in a translation mode, a translation traveling signal of the hoister is received, meanwhile, whether a detection signal for detecting whether the cable guide car is broken exists is detected through the detection device, if the detection signal for detecting whether the cable guide car is broken does not exist, the cable guide car operates normally, and therefore the translation traveling signal of the hoister and the normal detection signal for detecting the cable guide car are processed to serve as first signals.
200. Comparing the detection signal with the set signal duration according to a preset signal level early warning rule to obtain a judgment result;
specifically, according to the actual situation, an early warning registration rule corresponding to the signal is established, the detected signal is combined with the actual signal for analysis, the grade early warning of the corresponding signal is made, and the signal grade early warning rule is generated according to the corresponding relation.
300. If the duration of the detection signal is less than the duration of the first set signal, sending a control signal to control the yellow light to flash and alarm;
specifically, when the cable guide disconnection detection signal is detected, it indicates that the cable guide detection device detects an abnormality, and therefore, the cable guide disconnection detection signal is compared with the set first set signal duration, and corresponding processing is performed.
In the embodiment of the present invention, the first setting signal duration is 0.5 second.
Specifically, if the cable guide car snapping detection signal is shorter than the first set signal duration, the control signal is sent to the man-machine interaction interface, the man-machine interaction interface realizes yellow light flashing alarm to remind workers, and meanwhile, the yellow light flashing alarm corresponds to the cable guide car snapping detection signal and is shorter than the first set duration, so that the workers can quickly make corresponding processing according to fault types, and production accidents are avoided.
400. If the duration of the detection signal is longer than the duration of the second set signal, a control signal is sent to control the red light to be turned on normally to give an alarm.
Specifically, if the cable guide pull-off detection signal is greater than the first set duration, the cable guide pull-off detection signal is further compared with the second set duration, and corresponding processing is performed.
In the embodiment of the present invention, the second setting signal duration is 1.5 seconds.
If the duration of the detection signal is longer than that of the second set signal, a control signal is sent, the man-machine interaction picture receives the control signal, the red light is controlled to be normally on for alarming, and long voice is reported for alarming. Reminding the staff, the red light is normally on to report to the police and the long sound is reported to the police simultaneously and then corresponds cable guide vehicle and break the detected signal and be greater than the second and set for the signal length, consequently, the staff can make corresponding processing fast according to the fault type, avoids the emergence of production accident.
500. If the duration of the detection signal is less than the duration of the second set signal and greater than the first set duration, a control signal is sent to control the red light to flash and alarm, and a short sound is reported for alarm.
If the duration of the detection signal is less than the duration of the second set signal, a control signal is sent, the man-machine interaction picture receives the control signal, the red light is controlled to be normally on for alarming, and long voice is reported for alarming. Reminding the staff, simultaneously, the red light flashing alarm and the short sound alarm correspond to the cable guide vehicle disconnection detection signal, are shorter than the second set signal time length and longer than the first set signal time length, therefore, the staff can quickly make corresponding treatment according to the fault type, and the occurrence of production accidents is avoided.
510. And if the duration of the detection signal is less than the duration of the second set signal and greater than the first set duration, generating a second signal, and performing signal judgment by combining the first signal.
And if the duration of the cable guide vehicle snapping detection signal is shorter than the duration of the second set signal and longer than the first set duration, generating the cable guide vehicle snapping detection signal into a second signal, and processing, judging and analyzing the second signal by combining the first signal.
520. If the signal is abnormal, controlling the whole program of the elevator to stop executing;
if the analysis processing results of the first signal and the second signal are abnormal, the elevator is indicated to have a fault, and the whole procedure of the elevator needs to be terminated and executed.
530. And if the signal is normal, controlling the whole program of the elevator to continue normal operation.
And if the analysis processing results of the first signal and the second signal are normal, the elevator is normal and has no fault, and the whole procedure of the elevator is controlled to continue normal operation.
In order to realize the detection of a cable guide vehicle snapping signal and a hoist translation traveling signal, a travel switch 12, a steel wire rope 11, a steel wire rope lock catch, a corresponding protective electric circuit and a PLC control system are added into the original cable guide vehicle device; one end of a steel wire rope is connected with the other end of the steel wire rope, the steel wire rope penetrates through the fixed guide ring on the roller chain driving trolley through the upper fixed guide ring 14 of the cable guide trolley driving frame and sequentially penetrates through all the cable 13 clamping fixing holes, then the steel wire rope is fixed to the fixed end of the roller chain through a steel wire rope lock catch, and the other end of the steel wire rope penetrates through a swing rod end fixing hole of the travel switch after being tensioned and is fixed to the swing rod end fixing hole of the travel switch through the steel wire rope lock catch.
Referring to fig. 2 and 3, the cable guide vehicle is a reversible running guide vehicle which can move in two directions, and is driven by a roller chain 5, in the moving process of the two directions, the cable is prevented from being broken by the device, a travel switch of the device is required to be provided with a pair of electric normally-open point contacts, when a swing rod of the travel switch swings in the left and right directions, the electric normally-open points can be changed into a connected state, the device mainly comprises two parts which are symmetrical left and right by taking the combination of a cable guide vehicle driving frame 8, a roller chain driving trolley 9 and a cable groove 10 as a center, the left side is formed by two parts, one end of a stainless steel wire rope 11 with the diameter of 3mm penetrates through an upper fixed guide ring of the cable guide vehicle driving frame on the left side of the cable guide vehicle, then penetrates through fixed guide rings on the roller chain driving trolley, and sequentially penetrates through fixing holes of all cable clamps 7, and then is locked and fixed to a left fixed end 15 of the roller chain by the wire rope, the other end of the steel wire rope is tensioned and then penetrates through the end fixing hole of the swing rod of the travel switch, and the steel wire rope is locked and fixed on the end fixing hole of the swing rod of the travel switch. One end of a stainless steel wire rope with the diameter of 3mm on the right side penetrates through an upper fixing guide ring of a cable guide vehicle driving frame on the right side, then penetrates through a fixing guide ring on a roller chain driving trolley, sequentially penetrates through all cable clamp fixing holes, then the wire rope is fixed to a fixed end on the left side of the roller chain through a wire rope lock catch, and the other end of the wire rope after being tensioned also penetrates through a swing rod end fixing hole of a travel switch and is fixed to a swing rod end fixing hole of the travel switch through the wire rope lock catch.
Referring to fig. 4, when the situation that the cable is about to be broken due to stress, such as falling off of a roller chain out of a groove, disconnection, trolley derailment and the like occurs, a steel wire rope is also stressed to pull a travel switch, an electric normally closed contact 16 of the travel switch is displaced to drive an intermediate relay coil 17 to be powered on to operate, an intermediate relay normally open contact 19 is displaced to be closed while the intermediate relay coil 17 is powered on to operate, a detection signal corresponding to a PLC module 18 enters a PLC control system, an alarm prompt is sent out through program setting, and a PLC protection program is started to stop the continuous operation of the elevator system.
A program section is added to the original PLC master control of the hoister for control, when the coke tank of the hoister is hoisted to the top of the hoisting tower, and after a stop signal and a positioning signal are reached, the translation running program of the hoister is started, and meanwhile, an input signal of the anti-break switch PLC is detected. When a signal is detected to be input, when the signal duration is less than 0.5 second, a yellow light flashing alarm of a cable breaking signal is sent out on a man-machine interface, when the signal duration is more than 0.5 second and less than 1.5 second, a red light normally-on alarm of the cable breaking signal is displayed on a man-machine picture, a sound prompt alarm is sent out, when the signal duration is more than 1.5 second, the man-machine interface carries out red light flashing alarm and sends out a short sound alarm, meanwhile, the elevator is stopped to continue to run a translation program, and maintenance personnel are waited for processing.
The invention adopts the method that the steel wire rope and the stroke are opened, the relative positions of each mechanical part and the roller chain are detected, the phenomena of the roller chain falling out of the groove, disconnection, trolley derailment and the like are detected, the phenomena are converted into electric signals, the electric signals are sent to the PLC control system for corresponding treatment after the fault, the system operation can be stopped in time, the cable is effectively prevented from being broken and damaged, corresponding alarm information is sent out, and the accident is prevented from further expansion.
And when the PLC detects the action of the protective electric circuit, an alarm prompt is sent out, and a PLC protection program is started to terminate the continuous operation of the elevator system. One end of the steel wire rope is fixed on the travel switch rotating handle, sequentially penetrates through a fixed guide ring on a mechanical component which is likely to break or separate, penetrates through a cable clamp fixing hole, and is tensioned and then fixed to the bottom of the platform. The steel wire rope is arranged at the two ends of the cable clamp in the same direction as the roller chain. The fixing guide ring and the cable clamp fixing hole on the mechanical component are in the same plane as much as possible. And an intermediate relay which is supposed to be arranged on the protective electric circuit is protected and isolated and then is accessed into the PLC control system. The PLC protection program can timely stop the operation of the elevator system and send fault information on a manual interaction interface.
In order to achieve the above object, the present invention further provides a cable break-proof detection device for a cable guide, including:
the processing module is used for detecting a cable guide vehicle disconnection detection signal and carrying out signal amplification and filtering processing on the detection signal;
the judging module is used for comparing the detection signal with the set signal duration according to a preset signal level early warning rule to obtain a judging result;
the alarm module is used for sending a control signal to control the yellow light to flash and alarm if the duration of the detection signal is less than the duration of a first set signal; if the duration of the detection signal is longer than the duration of the second set signal, a control signal is sent to control the red light to be turned on normally to give an alarm.
A computer device, comprising: a memory and one or more processors;
the memory for storing one or more programs;
when executed by the one or more processors, cause the one or more processors to implement a method of cable break detection for a cable guide as described above.
A storage medium containing computer executable instructions for performing a method of cable break detection for a cable guide as described above when executed by a computer processor.
In conclusion, the invention has the following beneficial effects: according to the invention, by detecting the anti-breaking detection signal of the cable guide vehicle, if the cable breaks or fails, a corresponding alarm control signal is sent to inform the fault condition of the corresponding type; the system can be controlled to stop running in time, production accidents are avoided, and safety is enhanced.
The above description is only a preferred embodiment of the present invention, and the protection scope of the present invention is not limited to the above embodiments, and all technical solutions belonging to the idea of the present invention belong to the protection scope of the present invention. It should be noted that modifications and embellishments within the scope of the invention may occur to those skilled in the art without departing from the principle of the invention, and are considered to be within the scope of the invention.
Claims (10)
1. The utility model provides a detection method is prevented breaking by cable guide car cable which characterized in that: the method comprises the following steps:
detecting a cable guide vehicle breaking detection signal, and performing signal amplification and filtering processing on the detection signal;
comparing the detection signal with the set signal duration according to a preset signal level early warning rule to obtain a judgment result;
if the duration of the detection signal is less than the duration of the first set signal, sending a control signal to control the yellow light to flash and alarm;
if the duration of the detection signal is longer than the duration of the second set signal, a control signal is sent to control the red light to be turned on normally to give an alarm.
2. The cable break-proof detection method for the cable guide vehicle according to claim 1, characterized in that: if the duration of the detection signal is greater than the duration of the second set signal, the method further comprises the following steps of sending a control signal to control the red light to be normally on for alarming:
if the duration of the detection signal is less than the duration of the second set signal and greater than the first set duration, a control signal is sent to control the red light to flash and alarm, and a short sound is reported for alarm.
3. The cable break-proof detection method for the cable guide vehicle according to claim 1, characterized in that: according to the preset signal level early warning rule, the detection signal is compared with the set signal duration, and after the judgment result is obtained, the method further comprises the following steps:
and detecting a normal detection signal of the cable guide car, receiving a translation traveling signal of the hoister, and processing the detection signal and the translation traveling signal to be used as a first signal.
4. The cable break-proof detection method for the cable guide vehicle according to any one of claims 2 or 3, wherein: if the duration of the detection signal is less than the duration of the second set signal and greater than the first set duration, then sending a control signal to control the red light to flash and alarm, and after the short sound alarm, further comprising:
if the duration of the detection signal is less than the duration of a second set signal and greater than a first set duration, generating a second signal, and performing signal judgment by combining the first signal;
if the signal is abnormal, controlling the whole program of the elevator to stop executing;
and if the signal is normal, controlling the whole program of the elevator to continue normal operation.
5. The cable break-proof detection method for the cable guide vehicle according to claim 1, characterized in that: if the duration of the detection signal is greater than the duration of the second set signal, sending a control signal to control the red light to be normally on for alarming comprises the following steps:
if the duration of the detection signal is longer than that of the second set signal, a control signal is sent, the man-machine interaction picture receives the control signal, the red light is controlled to be normally on for alarming, and long voice is reported for alarming.
6. The cable break-proof detection method for the cable guide vehicle according to claim 1, characterized in that: the first set signal duration is 0.5 seconds.
7. The cable break-proof detection method for the cable guide vehicle according to claim 1, characterized in that: the second set signal duration is 1.5 seconds.
8. The utility model provides a detection device is prevented breaking by cable guide car cable which characterized in that: the method comprises the following steps:
the processing module is used for detecting a cable guide vehicle disconnection detection signal and carrying out signal amplification and filtering processing on the detection signal;
the judging module is used for comparing the detection signal with the set signal duration according to a preset signal level early warning rule to obtain a judging result;
the alarm module is used for sending a control signal to control the yellow light to flash and alarm if the duration of the detection signal is less than the duration of a first set signal; if the duration of the detection signal is longer than the duration of the second set signal, a control signal is sent to control the red light to be turned on normally to give an alarm.
9. A computer device, comprising: a memory and one or more processors;
the memory for storing one or more programs;
when executed by the one or more processors, cause the one or more processors to implement a method of cable guide cable anti-pull detection as recited in any of claims 1-7.
10. A storage medium containing computer executable instructions for performing a method of detecting a cable break protection for a cable guide according to any one of claims 1 to 7 when executed by a computer processor.
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Application publication date: 20210817 |
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| RJ01 | Rejection of invention patent application after publication |