CN115090681A - Method, device, medium and equipment for diagnosing and repairing brush roll of aluminothermic continuous rolling working roll - Google Patents
Method, device, medium and equipment for diagnosing and repairing brush roll of aluminothermic continuous rolling working roll Download PDFInfo
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- CN115090681A CN115090681A CN202210816221.0A CN202210816221A CN115090681A CN 115090681 A CN115090681 A CN 115090681A CN 202210816221 A CN202210816221 A CN 202210816221A CN 115090681 A CN115090681 A CN 115090681A
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- acceleration
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21B—ROLLING OF METAL
- B21B28/00—Maintaining rolls or rolling equipment in effective condition
- B21B28/02—Maintaining rolls in effective condition, e.g. reconditioning
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21B—ROLLING OF METAL
- B21B37/00—Control devices or methods specially adapted for metal-rolling mills or the work produced thereby
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21B—ROLLING OF METAL
- B21B38/00—Methods or devices for measuring, detecting or monitoring specially adapted for metal-rolling mills, e.g. position detection, inspection of the product
Abstract
The invention discloses a diagnosis and repair method for a brush roll of an aluminum hot continuous rolling working roll, which relates to the field of control of a metallurgical rolling mill and comprises the following steps of obtaining speed data of a speed encoder, differentiating the speed data, and calculating an acceleration value and an acceleration fluctuation value in a pressing process; judging whether the acceleration value exceeds a first preset threshold value, if not, sending an updating PI controller output enabling signal, and maintaining the speed before the acceleration value does not exceed the first preset threshold value; and judging whether the acceleration fluctuation value exceeds a second preset threshold value or not based on the pressing process, and if so, giving out a warning. The device comprises a differential calculation module, a speed processing module and an alarm processing module. Computer-readable storage media and processing devices are also disclosed. The invention can maintain the actual speed of the brush roll at the value before the abnormal speed after the abnormality, achieves the aim of continuous production and equipment protection, and can generate alarm to remind operators to check in time so as to avoid quality accidents.
Description
Technical Field
The invention relates to the technical field of control of rolling mills in the metallurgical industry, in particular to a method, a device, a medium and equipment for diagnosing and repairing a brush roll of an aluminothermic continuous rolling working roll.
Background
When working rolls of a certain stand of the aluminothermic continuous rolling mill normally work, the working rolls are respectively an upper roll and a lower roll, and are respectively provided with a brush roll, a hydraulic motor, a servo valve, an encoder and other equipment. In production, the working roller brush roll is pressed against the surface of the working roller through rotation, and the surface of the brush roll and the surface of the working roller form contact type relative motion, so that the effects of removing aluminum adhered on the surface of the working roller and stabilizing the roughness of the upper working roller and the lower working roller are achieved. The surface quality of the working roll is ensured by controlling the speed of the brush roll and the size of a brush mark formed on the roll surface of the working roll by the brush roll, and further the surface quality of the hot-aluminum continuous rolled strip is ensured.
The speed control system of the working roller brush roller is composed of a brush roller hydraulic motor, a servo control valve and a speed encoder, and the speed encoder and the servo control valve form closed-loop control. The speed encoder and the hydraulic motor are installed in the rolling mill frame, the environment is severe, and the problem of speed encoder failure often occurs. When the encoder breaks down, the servo control valve can reach the maximum opening degree in the short time, makes hydraulic motor reach the highest speed, forms excessive cleaning to arbitrary one in upper and lower working roll, can make two working roll surface roughness different like this and take place coiled material and twine the roller scheduling problem, can damage equipment when serious, causes the rolling accident. Meanwhile, the faults that the brush mark is too large or too small due to improper adjustment of the gap between the brush roll and the working roll, and the operation of equipment and the quality of products are influenced can also occur.
Disclosure of Invention
The invention aims to provide a diagnosis and repair method for a brush roll of an aluminothermic continuous rolling working roll, which can automatically repair faults, protect equipment and avoid accidents. In addition, still provide a hot continuous rolling work roller brush roller diagnosis and prosthetic devices of aluminium.
The technical scheme adopted by the invention for solving the technical problems is as follows: the method for diagnosing and repairing the brushing roller of the aluminothermic continuous rolling working roller comprises the following steps,
s1, acquiring speed data of the speed encoder, differentiating the speed data, and calculating an acceleration value and an acceleration fluctuation value in the pressing process;
s2, judging whether the acceleration value exceeds a first preset threshold value, if not, sending an output enabling signal of an updating PI controller, and maintaining the speed before the acceleration value does not exceed the first preset threshold value;
and S3, judging whether the acceleration fluctuation value exceeds a second preset threshold value or not based on the pressing process, and if so, giving a warning.
Further, in step S3, it is determined whether or not a preset second threshold value is exceeded based on the pressing process acceleration fluctuation value, and if so, a warning is issued, including
If the acceleration fluctuation is larger than 10%, judging that the brush mark is too large and giving an alarm.
Further, in step S3, it is determined whether or not a preset second threshold value is exceeded based on the pressing process acceleration fluctuation value, and if so, a warning is issued, including
If the acceleration fluctuation is less than 10%, judging that the brush mark is too small and giving an alarm.
Further, step S2 includes sending an update PI controller output enable signal to adjust the current speed if the acceleration value exceeds a first preset threshold.
Based on a unified thought, the device for diagnosing and repairing the brush roller of the aluminothermic continuous rolling working roller comprises
The differential calculation module is used for acquiring the speed data of the speed encoder, differentiating the speed data, and calculating an acceleration value and an acceleration fluctuation value in the pressing process;
the speed processing module is used for judging whether the acceleration value exceeds a first preset threshold value or not, if not, sending an updating PI controller output enabling signal and maintaining the speed before the acceleration value does not exceed the first preset threshold value;
and the alarm processing module judges whether the acceleration fluctuation value exceeds a second preset threshold value or not based on the pressing process, and if so, sends out an alarm.
Further, the alarm processing module is used for judging that the brush mark is too large and giving an alarm when the acceleration fluctuation is larger than 10%.
Further, the alarm processing module is used for judging that the brush mark is too small and giving an alarm when the acceleration fluctuation is less than 10%.
Further, the speed processing module is further configured to update the output enable of the PI controller to adjust the current speed when the acceleration value exceeds a first preset threshold.
A computer-readable storage medium is also provided, on which a computer program is stored which, when being executed by a processor, carries out the above-mentioned method.
There is also provided a processing device comprising a memory, a processor and a computer program stored on the memory and executable on the processor for implementing the above method when the program is executed.
According to the diagnosis and repair method for the brush roller of the aluminothermic continuous rolling working roller, speed data are obtained, differential operation and the like are carried out on the speed values of the upper working roller and the lower working roller, the acceleration value is calculated, when the calculation result exceeds a first preset threshold value, the system automatically switches the closed-loop control of the brush roller into open-loop control, the actual speed of the brush roller is maintained at the value before the speed is abnormal, and the purposes of continuous production and equipment protection are achieved. In addition, when the speed of the brush roller is reduced to a certain extent in the pressing process, and when the speed cannot reach a set speed range, the brush mark is too small or too large, an alarm can be generated to remind an operator to check in time, so that quality accidents are avoided, namely whether the alarm is given or not is determined by acquiring the relation between the acceleration fluctuation value and a second preset threshold value to prompt the operator.
Drawings
The invention will be further described with reference to the accompanying drawings and examples, in which:
FIG. 1 is a block diagram of a method for diagnosing and repairing a brush roll of an aluminothermic continuous rolling working roll according to an embodiment of the invention;
FIG. 2 is a flow chart of a diagnosing and repairing method for a brush roll of an aluminothermic rolling working roll according to an embodiment of the invention;
FIG. 3 is a schematic structural diagram of a diagnosing and repairing method for a brush roll of an aluminothermic continuous rolling working roll according to an embodiment of the invention.
Detailed Description
For a more clear understanding of the technical features, objects and effects of the present invention, embodiments of the present invention will now be described in detail with reference to the accompanying drawings.
As shown in fig. 1 and fig. 2, the method for diagnosing and repairing the brush roll of the aluminothermic continuous rolling working roll comprises the following steps,
and S1, acquiring and differentiating the speed data of the speed encoder, and calculating an acceleration value and a pressing process acceleration fluctuation value.
And S2, judging whether the acceleration value exceeds a first preset threshold value, if not, sending an output enabling signal of the updating PI controller, and maintaining the speed before the acceleration value does not exceed the first preset threshold value. The differential calculation link is added in closed-loop control formed by an original speed encoder and a servo control valve and used for calculating an acceleration value and an acceleration fluctuation value in a pressing process, the acceleration can be measured through a first preset threshold, the first preset threshold can be set according to a specific production environment, the first preset threshold is set to be 2-effect better in the embodiment, when the calculation result is abnormal and is smaller than 2, the closed-loop control is automatically switched to open-loop control by a system, so that the hydraulic motor of the brush roller is kept at the speed before the abnormality, and the purpose of protecting the working roller and the brush roller is achieved.
And S3, judging whether the acceleration fluctuation value exceeds a second preset threshold value or not based on the pressing process, and if so, giving a warning. The second preset threshold is preferably 10%, when the acceleration fluctuation is larger than 10%, the brush mark is judged to be too large and an alarm is sent out, and when the acceleration fluctuation is smaller than 10%, the brush mark is judged to be too small and an alarm is sent out.
In the embodiment, the speed differential result in the pressing process is analyzed by increasing, in the normal pressing process, the differential result is firstly changed by 10% and then returns to 0, if the differential result is larger than 10%, the brush mark is determined to be too large, and if the differential result is smaller than 10%, the brush mark is determined to be too small, the system automatically alarms, and thus the purpose of protecting the product quality is achieved.
According to the diagnosis and repair method for the brush roller of the aluminothermic continuous rolling working roller, the speed data is obtained, differential operation and the like are carried out on the speed values of the upper working roller and the lower working roller, the acceleration value is calculated, when the calculation result exceeds a first preset threshold value, the system automatically switches the closed-loop control of the brush roller into open-loop control, the actual speed of the brush roller is maintained at the value before the speed is abnormal, and the purposes of continuing production and protecting equipment are achieved. In addition, when the speed of the brush roller is reduced to a certain extent in the pressing process, and when the speed cannot reach a set speed range, the brush mark is too small or too large, an alarm can be generated to remind an operator to check in time, so that quality accidents are avoided, namely whether the alarm is given or not is determined by acquiring the relation between the acceleration fluctuation value and a second preset threshold value to prompt the operator.
As shown in fig. 3, the diagnosing and repairing apparatus for brushing rolls of hot-aluminum continuous rolling working rolls comprises a differential calculating module, a speed processing module and an alarm processing module, wherein the speed processing module, the alarm processing module and a speed encoder are respectively connected with the differential calculating module.
The differential calculation module is used for acquiring the speed data of the speed encoder, differentiating the speed data, and calculating an acceleration value and an acceleration fluctuation value in the pressing process.
The speed processing module is used for judging whether the acceleration value exceeds a first preset threshold value, if not, sending an updating PI controller output enabling signal, and maintaining the speed before the acceleration value does not exceed the first preset threshold value. The differential calculation link is added in closed-loop control formed by an original speed encoder and a servo control valve and used for calculating an acceleration value and an acceleration fluctuation value in a pressing process, the acceleration can be measured through a first preset threshold, the first preset threshold can be set according to a specific production environment, the first preset threshold is set to be 2-effect better in the embodiment, when the calculation result is abnormal and is smaller than 2, the closed-loop control is automatically switched to open-loop control by a system, so that the hydraulic motor of the brush roller is kept at the speed before the abnormality, and the purpose of protecting the working roller and the brush roller is achieved.
The alarm processing module judges whether the acceleration fluctuation value exceeds a second preset threshold value or not based on the pressing process, and if yes, a warning is sent out. The second preset threshold is preferably 10%, when the acceleration fluctuation is larger than 10%, the brush mark is judged to be too large and an alarm is given, and when the acceleration fluctuation is smaller than 10%, the brush mark is judged to be too small and an alarm is given.
In the embodiment, the speed differential result of the pressing process is analyzed by adding, in the normal pressing process, the differential result changes by 10% firstly and then returns to 0, the brush mark is judged to be too large by more than 10%, the brush heel is judged to be too small by less than 10%, and the system automatically alarms, so that the aim of protecting the product quality is fulfilled.
It will be understood by those skilled in the art that all or part of the steps of the methods of the above embodiments may be performed by instructions or by associated hardware controlled by the instructions, which may be stored in a computer readable storage medium and loaded and executed by a processor.
To this end, the embodiment of the present application provides a storage medium, in which a plurality of instructions are stored, and the instructions can be loaded by a processor to execute the steps in the diagnosing and repairing method for the brush roll of the aluminothermic continuous rolling working roll provided by the embodiment of the present application. For example, the instructions may perform the steps of:
acquiring speed data of a speed encoder, differentiating the speed data, and calculating an acceleration value and an acceleration fluctuation value in a pressing process;
judging whether the acceleration value exceeds a first preset threshold value, if not, sending an updating PI controller output enabling signal, and maintaining the speed before the acceleration value does not exceed the first preset threshold value;
and judging whether the acceleration fluctuation value exceeds a second preset threshold value or not based on the pressing process, and if so, giving out a warning. The above operations can be implemented in the foregoing embodiments, and are not described in detail herein.
Wherein the storage medium may include: read Only Memory (ROM), Random Access Memory (RAM), magnetic or optical disks, and the like.
The instructions stored in the storage medium can execute the steps in any one of the diagnosis and repair methods for the brush roll of the aluminum hot continuous rolling working roll provided by the embodiments of the present application, so that the beneficial effects that any one of the diagnosis and repair methods for the brush roll of the aluminum hot continuous rolling working roll provided by the embodiments of the present application can be achieved, for details, see the foregoing embodiments, and are not described again here.
On the other hand, the embodiment of the application also provides a processing device which comprises a memory, a processor and a computer program which is stored on the memory and can run on the processor, wherein the processor is used for implementing the steps in the diagnosing and repairing method for the brush roll of the aluminothermic continuous rolling working roll of the embodiment when the program is executed.
The embodiment of the invention also provides processing equipment which integrates the device for diagnosing and repairing the brush roll of the hot aluminum continuous rolling working roll. The processing apparatus according to the present embodiment is,
the processor, which may include one or more processing cores, memory for one or more computer-readable storage media, power and input units, etc.
The processor is a control center of the processing equipment, various interfaces and lines are used for connecting all parts of the whole processing equipment, and various functions and processing data of the processing equipment are executed by running or executing software programs and/or modules stored in the memory and calling data stored in the memory, so that the processing equipment is monitored integrally. Optionally, the processor may include one or more processing cores; preferably, the processor may integrate an application processor, which mainly handles operating systems, user interfaces, application programs, etc., and a modem processor, which mainly handles wireless communications. It will be appreciated that the modem processor described above may not be integrated into the processor.
The memory may be used to store software programs and modules, and the processor may execute various functional applications and data processing by operating the software programs and modules stored in the memory. The memory may mainly include a storage program area and a storage data area, wherein the storage program area may store an operating system, an application program required by at least one function (such as a sound playing function, an image playing function, etc.), and the like; the storage data area may store data created according to the use of the processing apparatus, and the like. Further, the memory may include high speed random access memory, and may also include non-volatile memory, such as at least one magnetic disk storage device, flash memory device, or other volatile solid state storage device. Accordingly, the memory may also include a memory controller to provide the processor access to the memory.
The processing device also includes a power supply for supplying power to the various components, and preferably, the power supply may be logically connected to the processor through a power management system, so that functions of managing charging, discharging, and power consumption management are performed through the power management system. The power supply may also include any component of one or more dc or ac power sources, recharging systems, power failure detection circuitry, power converters or inverters, power status indicators, and the like.
The processing device may also include an input unit operable to receive entered numeric or character information and generate keyboard, mouse, joystick, optical or trackball signal inputs related to user settings and function control.
Although not shown, the processing device may further include a display unit and the like, which are not described in detail herein. Specifically, in this embodiment, a processor in the processing device loads an executable file corresponding to a process of one or more application programs into a memory according to the following instructions, and the processor runs the application programs stored in the memory, thereby implementing various functions as follows:
acquiring speed data of a speed encoder, differentiating the speed data, and calculating an acceleration value and an acceleration fluctuation value in a pressing process;
judging whether the acceleration value exceeds a first preset threshold value, if not, sending an updating PI controller output enabling signal, and maintaining the speed before the acceleration value does not exceed the first preset threshold value;
and judging whether the acceleration fluctuation value exceeds a second preset threshold value or not based on the pressing process, and if so, giving out a warning.
The method, the device, the processing equipment and the storage medium for diagnosing and repairing the brush roll of the aluminothermic continuous rolling working roll provided by the embodiment of the invention are described in detail, a specific embodiment is applied to explain the principle and the implementation mode of the invention, and the description of the embodiment is only used for helping to understand the method and the core idea of the invention; meanwhile, for those skilled in the art, according to the idea of the present invention, the specific embodiments and the application range may be changed, and in summary, the content of the present specification should not be construed as limiting the present invention.
Claims (10)
1. The diagnosis and repair method for the brush roll of the aluminothermic continuous rolling working roll is characterized by comprising the following steps,
s1, acquiring speed data of the speed encoder, differentiating the speed data, and calculating an acceleration value and an acceleration fluctuation value in the pressing process;
s2, judging whether the acceleration value exceeds a first preset threshold value, if not, sending an output enabling signal of an updating PI controller, and maintaining the speed before the acceleration value does not exceed the first preset threshold value;
and S3, judging whether the acceleration fluctuation value exceeds a second preset threshold value or not based on the pressing process, and if so, giving an alarm.
2. The method for diagnosing and repairing the brush roll of the aluminothermic continuous rolling working roll according to claim 1, wherein the step S3 is performed to determine whether a preset second threshold value is exceeded or not based on the acceleration fluctuation value of the pressing process, and if so, a warning is issued, including
If the acceleration fluctuation is larger than 10%, judging that the brush mark is too large and giving an alarm.
3. The method for diagnosing and repairing the brush roll of the aluminothermic continuous rolling working roll according to claim 1, wherein the step S3 is performed to determine whether a preset second threshold value is exceeded or not based on the acceleration fluctuation value of the pressing process, and if so, a warning is issued, including
If the acceleration fluctuation is less than 10%, judging that the brush mark is too small and giving an alarm.
4. The method for diagnosing and repairing the brush roll of the aluminothermic continuous rolling working roll of claim 1, wherein the step S2 further comprises sending an update PI controller output enable signal to adjust the current speed if the acceleration value exceeds a first preset threshold.
5. The device for diagnosing and repairing the brush roll of the aluminothermic continuous rolling working roll is characterized by comprising
The differential calculation module is used for acquiring the speed data of the speed encoder, differentiating the speed data, and calculating an acceleration value and an acceleration fluctuation value in the pressing process;
the speed processing module is used for judging whether the acceleration value exceeds a first preset threshold value or not, if not, sending an updating PI controller output enabling signal and maintaining the speed before the acceleration value does not exceed the first preset threshold value;
and the alarm processing module judges whether the acceleration fluctuation value exceeds a second preset threshold value or not based on the pressing process, and if so, sends out an alarm.
6. The device for diagnosing and repairing the brush roll of the aluminothermic continuous rolling working roll according to claim 5, wherein the alarm processing module is used for judging that the brush mark is too large and giving an alarm when the acceleration fluctuation is more than 10%.
7. The device for diagnosing and repairing the brush roll of the aluminothermic continuous rolling working roll according to claim 5, wherein the alarm processing module is used for judging that the brush mark is too small and giving an alarm when the acceleration fluctuation is less than 10%.
8. The apparatus of claim 5, wherein the speed processing module is further configured to update the PI controller output enable to adjust the current speed if the acceleration value exceeds a first predetermined threshold.
9. A computer-readable storage medium, on which a computer program is stored, which, when being executed by a processor, carries out the method according to any one of claims 1-4.
10. A processing device comprising a memory, a processor and a computer program stored on the memory and executable on the processor, the processor being configured to implement the method of any of claims 1-4 when executing the program.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210816221.0A CN115090681A (en) | 2022-07-12 | 2022-07-12 | Method, device, medium and equipment for diagnosing and repairing brush roll of aluminothermic continuous rolling working roll |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210816221.0A CN115090681A (en) | 2022-07-12 | 2022-07-12 | Method, device, medium and equipment for diagnosing and repairing brush roll of aluminothermic continuous rolling working roll |
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| Publication Number | Publication Date |
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| CN115090681A true CN115090681A (en) | 2022-09-23 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202210816221.0A Pending CN115090681A (en) | 2022-07-12 | 2022-07-12 | Method, device, medium and equipment for diagnosing and repairing brush roll of aluminothermic continuous rolling working roll |
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| CN (1) | CN115090681A (en) |
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- 2022-07-12 CN CN202210816221.0A patent/CN115090681A/en active Pending
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