CN112880604A - Roll profile calculation method and related equipment - Google Patents
Roll profile calculation method and related equipment Download PDFInfo
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- G—PHYSICS
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
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Abstract
The application discloses a roller profile calculating method and related equipment, wherein the method comprises the following steps: acquiring the vertical distance between an ultrasonic probe at each detection point in a plurality of detection points and the axial plane of the target roller; calculating the distance between the target detection plane at each detection point and the axis of the target roller according to the vertical distance between the ultrasonic probe at each detection point and the axis plane of the target roller, wherein the target detection plane is the plane where the connecting line of the ultrasonic probe and the receiver is located; performing first axis inclination compensation by using the distance between two target detection planes corresponding to two adjacent detection points in the plurality of detection points and the axis of the target roller to obtain a plurality of first compensation distances; a first profile of the target roll is calculated using the plurality of first compensation distances. Therefore, by compensating the inclination of the axis, the deviation of the roller profile during measurement can be reduced, and the accuracy is improved.
Description
Technical Field
The application relates to the technical field of rollers, in particular to a roller profile calculation method and related equipment.
Background
In order to obtain a sheet material having a uniform thickness and width, the requirements for the roll profile of the roll are high. In the prior art, when the profile of the roller is measured, the axial deviation of the roller is caused by the clearance between a roller bearing box and the roller, the clearance between a roller bearing and a roller journal and the whirling motion of a working roller caused by the eccentric rotation of a supporting roller. Local wear of the rolls often occurs when the rolls are in contact with the rolling stock, which also results in an offset of the axes of the rolls. And the axis deviation of the roller can cause the deviation of the roller profile measurement, and the accuracy is poor.
Disclosure of Invention
The invention provides a method for calculating a roller profile and related equipment, which are used for solving the problems of deviation and poor accuracy in roller profile measurement caused by the axis deviation of a roller in the prior art.
In a first aspect, the present invention provides a roll profile calculation method, including:
acquiring the vertical distance between an ultrasonic probe at each detection point in a plurality of detection points and the axial plane of the target roller;
calculating the distance between a target detection plane at each detection point and the axis of the target roller according to the vertical distance between the ultrasonic probe and the axis plane of the target roller at each detection point, wherein the target detection plane is the plane where the connecting line of the ultrasonic probe and the receiver is located;
performing first axis inclination compensation by using the distance between two target detection planes corresponding to two adjacent detection points in the plurality of detection points and the axis of the target roller to obtain a plurality of first compensation distances;
and calculating a first profile of the target roll by using the plurality of first compensation distances.
Optionally, the calculating a distance between the target detection plane at each detection point and the axis of the target roll according to the perpendicular distance between the ultrasonic probe at each detection point and the axis plane of the target roll includes:
calculating the distance between the target detection plane and the axis of the target roll at each detection point by using the following formula:
wherein L isAAnd the distance between the target detection plane and the axis of the target roller at each detection point, theta is the incident angle of the ultrasonic probe, H is the distance between the ultrasonic probe and the receiver, r is the radius of the target roller, and s is the perpendicular distance between the ultrasonic probe and the axis of the target roller at each detection point.
Optionally, the performing first axis inclination compensation by using distances between two target detection planes corresponding to two adjacent detection points in the plurality of detection points and the axis of the target roll to obtain a plurality of first compensation distances includes:
obtaining the plurality of first compensation distances using the following equation:
wherein L isCompensation 1For one of the first compensation distances, LA0The distance L between the target detection plane corresponding to the first detection point of the two adjacent detection points and the axis of the target rollerA1The distance between the target detection plane corresponding to the second detection point of the two adjacent detection points and the axis of the target roller is W, and W is the distance between the target detection plane and the axis of the target rollerAnd C is the distance between the two adjacent detection points, and the first detection point is positioned before the second detection point.
Optionally, the method further includes:
performing second axis inclination compensation on the vertical distance between the ultrasonic probe and the axis plane of the target roller at each detection point by using the following formula to obtain a corresponding second compensation distance at each detection point:
wherein s isCompensation 2For each corresponding second compensation distance, sA0And sA1The perpendicular distance between the two ultrasonic probes and the axis plane of the target roller, and s, acquired at each detection pointA0And sA1The interval of the acquisition time of (2) is matched with the time length of one rotation of the target roller along the circumferential direction.
Optionally, the method further includes:
acquiring the ultrasonic wave speed and the transmission time at each detection point in the plurality of detection points, wherein the transmission time is the time for the ultrasonic wave transmitted by the ultrasonic probe to be reflected by the target roller and received by the receiver, and the ultrasonic wave speed at each detection point is related to the temperature at each detection point;
calculating the temperature compensation distance between the target detection plane and the axis of the target roller at each detection point according to the ultrasonic wave speed and the transmission time at each detection point;
and calculating a second profile of the target roller according to the temperature compensation distance between the target detection plane at each detection point in the plurality of detection points and the axis of the target roller.
Optionally, calculating a temperature compensation distance between the target detection plane at each detection point and the axis of the target roll according to the ultrasonic wave speed and the transmission time at each detection point, including:
calculating a temperature compensation distance of the target detection plane at each detection point from an axis of the target roll by the following formula:
wherein L isTCompensating the distance, C, of the target detection plane from the axis of the target roll at each detection pointTFor the ultrasonic wave velocity, t, at each of the detection pointsTFor the transit time at each of said detection points, CrIs the ultrasonic wave velocity at the reference temperature, trThe time L of the ultrasonic wave emitted by the ultrasonic probe at the reference temperature reflected by the target roller and received by the receiverrThe distance between the target detection plane and the axis of the target roller at the reference temperature is obtained.
Optionally, the distance C between two adjacent detection points is 100 mm to 200 mm.
In a second aspect, the present invention also provides a roll profile calculating apparatus comprising:
the acquisition module is used for acquiring the vertical distance between the ultrasonic probe at each detection point in the plurality of detection points and the axis plane of the target roller;
the first calculation module is used for calculating the distance between a target detection plane at each detection point and the axis of the target roller according to the vertical distance between the ultrasonic probe and the axis plane of the target roller at each detection point, wherein the target detection plane is a plane where the connecting line of the ultrasonic probe and the receiver is located;
the compensation module is used for performing first axis inclination compensation by using the distance between the two target detection planes corresponding to two adjacent detection points in the plurality of detection points and the axis of the target roller to obtain a plurality of first compensation distances;
and the second calculation module is used for calculating the first profile of the target roller by using the plurality of first compensation distances.
In a third aspect, the present invention also provides an electronic device comprising a memory, and a processor for implementing the steps of the roll profile calculating method according to the first aspect when executing a computer program stored in the memory.
In a fourth aspect, the present invention also provides a computer-readable storage medium having stored thereon a computer program which, when being executed by a processor, carries out the steps of the roll profile calculating method according to the first aspect.
According to the technical scheme, the roller profile calculating method and the related equipment provided by the embodiment of the invention have the advantages that the vertical distance between the ultrasonic probe at each detection point in a plurality of detection points and the axis plane of the target roller is obtained; calculating the distance between a target detection plane at each detection point and the axis of the target roller according to the vertical distance between the ultrasonic probe and the axis plane of the target roller at each detection point, wherein the target detection plane is the plane where the connecting line of the ultrasonic probe and the receiver is located; performing first axis inclination compensation by using the distance between two target detection planes corresponding to two adjacent detection points in the plurality of detection points and the axis of the target roller to obtain a plurality of first compensation distances; and calculating a first profile of the target roll by using the plurality of first compensation distances. In this way, the first axis inclination compensation can be performed by using the distances between the two target detection planes corresponding to the adjacent two detection points among the plurality of detection points and the axis of the target roll, so as to obtain a plurality of first compensation distances. The first profile of the target roll may then be calculated using the plurality of first compensation distances. By compensating the inclination of the axis, the deviation of the roller profile during measurement can be reduced, and the accuracy is improved.
Drawings
FIG. 1 is a flow chart of a roll profile calculation method provided by an embodiment of the present application;
FIG. 2 is a schematic view of a roll profile calculating apparatus according to an embodiment of the present invention moving along the axis of a roll and measuring the roll profile;
FIG. 3 is a schematic diagram illustrating a roll profile calculating apparatus for measuring a roll according to an embodiment of the present disclosure;
FIG. 4 is a block diagram of a roll profile calculating apparatus according to an embodiment of the present invention;
fig. 5 is a schematic diagram of an embodiment of an electronic device according to an embodiment of the present application;
fig. 6 is a schematic diagram of an embodiment of a computer-readable storage medium provided in an embodiment of the present application.
Detailed Description
In order to better understand the technical solutions provided by the embodiments of the present specification, the technical solutions of the embodiments of the present specification are described in detail below with reference to the drawings and specific embodiments, and it should be understood that the specific features in the embodiments and examples of the present specification are detailed descriptions of the technical solutions of the embodiments of the present specification, and are not limitations on the technical solutions of the embodiments of the present specification, and the technical features in the embodiments and examples of the present specification may be combined with each other without conflict.
In this document, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other identical elements in a process, method, article, or apparatus that comprises the element. The term "two or more" includes the case of two or more.
Referring to fig. 1, fig. 1 is a flowchart of a roll profile calculation method provided by the present invention. As shown in fig. 1, the method comprises the following steps:
In step 101, as shown in fig. 2, a schematic view of a roll profile calculating apparatus moving in the direction of the roll axis and measuring is shown. It should be noted that the roll profile calculation means can be moved on a guide, which can be parallel to the rolls. A plurality of detection points may be provided, and the roll profile calculating means may measure the roll at each of the plurality of detection points as it moves along the guide. The vertical distance between the ultrasonic probe and the axis plane of the target roll at each of the plurality of detection points can be acquired. Fig. 3 is a schematic diagram of a roll profile calculation device for measuring a roll.
102, calculating the distance between the target detection plane at each detection point and the axis of the target roller according to the vertical distance between the ultrasonic probe at each detection point and the axis plane of the target roller, wherein the target detection plane is the plane where the connecting line of the ultrasonic probe and the receiver is located.
In step 102, the distance between the target detection plane and the axis of the target roll at each detection point can be calculated according to the perpendicular distance between the ultrasonic probe and the axis plane of the target roll at each detection point. Wherein, the target detection plane is a plane where the connecting line of the ultrasonic probe and the receiver is located.
Optionally, the calculating a distance between the target detection plane at each detection point and the axis of the target roll according to the perpendicular distance between the ultrasonic probe at each detection point and the axis plane of the target roll includes:
calculating the distance between the target detection plane and the axis of the target roll at each detection point by using the following formula:
wherein L isAAnd the distance between the target detection plane and the axis of the target roller at each detection point, theta is the incident angle of the ultrasonic probe, H is the distance between the ultrasonic probe and the receiver, r is the radius of the target roller, and s is the perpendicular distance between the ultrasonic probe and the axis of the target roller at each detection point.
Further, the distance between the target detection plane and the axis of the target roll at each detection point can be calculated by using the following formula:
as shown in FIG. 3, LAAnd the distance between the target detection plane and the axis of the target roller at each detection point, theta is the incident angle of the ultrasonic probe, H is the distance between the ultrasonic probe and the receiver, r is the radius of the target roller, and s is the perpendicular distance between the ultrasonic probe and the axis plane of the target roller at each detection point.
And 103, performing first axis inclination compensation by using the distance between the two target detection planes corresponding to two adjacent detection points in the plurality of detection points and the axis of the target roller to obtain a plurality of first compensation distances.
In step 103, if the axis of the target roll is offset perpendicular to the target detection plane, LARequiring correction. The first axis inclination compensation can be performed by using the distance between the axis of the target roll and two target detection planes corresponding to two adjacent detection points in the plurality of detection points, so as to obtain a plurality of first compensation distances.
Optionally, the performing first axis inclination compensation by using distances between two target detection planes corresponding to two adjacent detection points in the plurality of detection points and the axis of the target roll to obtain a plurality of first compensation distances includes:
obtaining the plurality of first compensation distances using the following equation:
wherein L isCompensation 1For one of the first compensation distances, LA0The distance L between the target detection plane corresponding to the first detection point of the two adjacent detection points and the axis of the target rollerA1The distance between the target detection plane corresponding to the second detection point of the two adjacent detection points and the axis of the target roller is W, the length of the target roller is W, the distance between the two adjacent detection points is C, and the first detection point is positioned before the second detection point.
Further, the plurality of first compensation distances may be obtained using the following equation:
wherein L isCompensation 1For one of the plurality of first compensation distances, LA0The distance L between the target detection plane corresponding to the first detection point of the two adjacent detection points and the axis of the target rollerA1The distance between a target detection plane corresponding to a second detection point of two adjacent detection points and the axis of the target roller is W, the length of the target roller is W, the distance between the two adjacent detection points is C, and the first detection point is positioned before the second detection point. That is, when the roller profile calculating device moves on the guide rail, the roller profile calculating device firstly passes through the first detection point and then passes through the second detection point. Thus, when the axis of the target roll is deviated perpendicularly to the target detection plane, the adjacent detection points among the plurality of detection points can be utilizedThe distance between the two target detection planes corresponding to the two detection points and the axis of the target roller is subjected to first axis inclination compensation, so that the deviation of the roller profile during measurement can be reduced, and the accuracy is improved.
Optionally, the method further includes:
performing second axis inclination compensation on the vertical distance between the ultrasonic probe and the axis plane of the target roller at each detection point by using the following formula to obtain a corresponding second compensation distance at each detection point:
wherein s isCompensation 2For each corresponding second compensation distance, sA0And sA1The perpendicular distance between the two ultrasonic probes and the axis plane of the target roller, and s, acquired at each detection pointA0And sA1The interval of the acquisition time of (2) is matched with the time length of one rotation of the target roller along the circumferential direction.
Further, if the axis of the target roll is offset parallel to the target detection plane, s needs to be corrected. The second axis inclination compensation can be performed on the vertical distance between the ultrasonic probe at each detection point and the axis plane of the target roller by using the following formula, so as to obtain a corresponding second compensation distance at each detection point:
wherein s isCompensation 2For each corresponding second compensation distance, s, at each detection pointA0And sA1The perpendicular distance of the two ultrasonic probes obtained for each inspection point from the axis plane of the target roll, and sA0And sA1The interval of the acquisition time of (1) is matched with the time length of one rotation of the target roll in the circumferential direction. That is, the roller profile calculating device obtains s at a certain detection pointA0Then, can be atThe detection point waits for the target roller to rotate for a circle along the circumferential direction, and the target roller can acquire s againA1. And then s obtained at the detection point can be utilizedA0And sA1Correcting to obtain a second compensation distance s at the detection pointCompensation 2. For any one of the detection points, s can be corrected in the above manner to obtain the second compensation distance s corresponding to each detection pointCompensation 2. Therefore, if the axis of the target roller deviates in parallel with the target detection plane, the second axis inclination compensation can be carried out on the vertical distance between the ultrasonic probe at each detection point and the axis plane of the target roller, so that the deviation in the roller profile measurement can be reduced, and the accuracy is improved.
Optionally, the distance C between two adjacent detection points is 100 mm to 200 mm.
It should be noted that the distance C between the two adjacent detection points may be 100 mm to 200 mm. I.e. the roll profile calculation means can move a distance of 100-200 mm each time on the guide.
And 104, calculating a first profile of the target roller by using the plurality of first compensation distances.
In step 104, a first profile of the target roll may be calculated using the plurality of first compensation distances.
Optionally, the method further includes:
acquiring the ultrasonic wave speed and the transmission time at each detection point in the plurality of detection points, wherein the transmission time is the time for the ultrasonic wave transmitted by the ultrasonic probe to be reflected by the target roller and received by the receiver, and the ultrasonic wave speed at each detection point is related to the temperature at each detection point;
calculating the temperature compensation distance between the target detection plane and the axis of the target roller at each detection point according to the ultrasonic wave speed and the transmission time at each detection point;
and calculating a second profile of the target roller according to the temperature compensation distance between the target detection plane at each detection point in the plurality of detection points and the axis of the target roller.
Further, the target roll may be within a varying temperature field and the ambient temperature at each sensing point may be different. Therefore, the temperature influence is also compensated for when measuring the roll. The ultrasonic wave speed and the transmission time at each of the plurality of detection points can be acquired. Wherein, the transmission time is the time when the ultrasonic wave emitted by the ultrasonic probe is reflected by the target roller and received by the receiver. The ultrasonic wave speed at each detection point is correlated with the temperature at each detection point. Then, the temperature compensation distance of the target detection plane at each detection point from the axis of the target roll can be calculated from the ultrasonic wave velocity and the transmission time at each detection point. Next, a second profile of the target roll may be calculated based on the temperature compensation distance of the target detection plane at each of the plurality of detection points from the axis of the target roll.
Optionally, calculating a temperature compensation distance between the target detection plane at each detection point and the axis of the target roll according to the ultrasonic wave speed and the transmission time at each detection point, including:
calculating a temperature compensation distance of the target detection plane at each detection point from an axis of the target roll by the following formula:
wherein L isTCompensating the distance, C, of the target detection plane from the axis of the target roll at each detection pointTFor the ultrasonic wave velocity, t, at each of the detection pointsTFor the transit time at each of said detection points, CrIs the ultrasonic wave velocity at the reference temperature, trThe time L of the ultrasonic wave emitted by the ultrasonic probe at the reference temperature reflected by the target roller and received by the receiverrFor the target at the reference temperatureAnd detecting the distance between the plane and the axis of the target roller.
Further, the temperature compensation distance of the target detection plane at each detection point from the axis of the target roll may be calculated by the following formula:
wherein L isTCompensating the distance, C, of the target detection plane from the axis of the target roll for the temperature of the target at each detection pointTFor the ultrasonic wave velocity, t, at each inspection pointTFor the transmission time at each detection point, CrIs the ultrasonic wave velocity at the reference temperature, trThe time, L, of the ultrasonic wave emitted by the ultrasonic probe at the reference temperature being reflected by the target roller and received by the receiverrThe distance between the target detection plane and the axis of the target roller at the reference temperature is used. The reference temperature may be normal temperature, for example, 20 to 25 ℃. In this way, the temperature compensation distance of the target detection plane at each detection point from the axis of the target roll can be calculated from the ultrasonic wave speed and the transmission time at each detection point. And then calculating the second profile of the target roll according to the temperature compensation distance between the target detection plane at each detection point in the plurality of detection points and the axis of the target roll. The influence of the temperature can be compensated, the deviation of the roller profile during measurement can be reduced, and the accuracy is improved.
According to the technical scheme, the roller profile calculating method provided by the embodiment of the invention is characterized in that the vertical distance between the ultrasonic probe at each detection point of a plurality of detection points and the axis plane of the target roller is obtained; calculating the distance between a target detection plane at each detection point and the axis of the target roller according to the vertical distance between the ultrasonic probe and the axis plane of the target roller at each detection point, wherein the target detection plane is the plane where the connecting line of the ultrasonic probe and the receiver is located; performing first axis inclination compensation by using the distance between two target detection planes corresponding to two adjacent detection points in the plurality of detection points and the axis of the target roller to obtain a plurality of first compensation distances; and calculating a first profile of the target roll by using the plurality of first compensation distances. In this way, the first axis inclination compensation can be performed by using the distances between the two target detection planes corresponding to the adjacent two detection points among the plurality of detection points and the axis of the target roll, so as to obtain a plurality of first compensation distances. The first profile of the target roll may then be calculated using the plurality of first compensation distances. By compensating the inclination of the axis, the deviation of the roller profile during measurement can be reduced, and the accuracy is improved.
Referring to fig. 4, fig. 4 is a block diagram of a roll profile calculating apparatus according to the present invention. As shown in fig. 4, the roll profile calculation apparatus 400 includes an acquisition module 401, a first calculation module 402, a compensation module 403, and a second calculation module 404, wherein:
the acquisition module 401 is configured to acquire a vertical distance between the ultrasonic probe at each of the plurality of detection points and an axis plane of the target roll;
a first calculating module 402, configured to calculate a distance between a target detection plane at each detection point and an axis of the target roll according to a perpendicular distance between the ultrasonic probe and an axis plane of the target roll at each detection point, where the target detection plane is a plane where a connection line between the ultrasonic probe and the receiver is located;
a compensation module 403, configured to perform first axis inclination compensation by using distances between two target detection planes corresponding to two adjacent detection points in the plurality of detection points and an axis of the target roll, so as to obtain a plurality of first compensation distances;
a second calculating module 404, configured to calculate a first profile of the target roll by using the plurality of first compensation distances.
The roll profile calculating means 400 can implement the respective processes implemented by the roll profile calculating means in the method embodiment of fig. 1, and a detailed description thereof is omitted here to avoid redundancy. And the roll profile calculation apparatus 400 may perform the first axis inclination compensation by using the distances between the two target detection planes corresponding to the two adjacent detection points among the plurality of detection points and the axis of the target roll, to obtain a plurality of first compensation distances. The first profile of the target roll may then be calculated using the plurality of first compensation distances. By compensating the inclination of the axis, the deviation of the roller profile during measurement can be reduced, and the accuracy is improved.
Referring to fig. 5, fig. 5 is a schematic view of an embodiment of an electronic device according to an embodiment of the present disclosure.
As shown in fig. 5, an electronic device 500 according to an embodiment of the present application includes a memory 510, a processor 520, and a computer program 511 stored in the memory 510 and executable on the processor 520, where the processor 520 executes the computer program 511 to implement the following steps:
acquiring the vertical distance between an ultrasonic probe at each detection point in a plurality of detection points and the axial plane of the target roller;
calculating the distance between a target detection plane at each detection point and the axis of the target roller according to the vertical distance between the ultrasonic probe and the axis plane of the target roller at each detection point, wherein the target detection plane is the plane where the connecting line of the ultrasonic probe and the receiver is located;
performing first axis inclination compensation by using the distance between two target detection planes corresponding to two adjacent detection points in the plurality of detection points and the axis of the target roller to obtain a plurality of first compensation distances;
and calculating a first profile of the target roll by using the plurality of first compensation distances.
In a specific implementation, when the processor 520 executes the computer program 511, any of the embodiments corresponding to fig. 1 may be implemented.
Since the electronic device described in this embodiment is a device for implementing a roll profile calculating apparatus in this embodiment, a person skilled in the art can understand the specific implementation manner of the electronic device of this embodiment and various modifications thereof based on the method described in this embodiment, so that how to implement the method in this embodiment by the electronic device will not be described in detail herein, and as long as the person skilled in the art implements the device used in this embodiment, the scope of the protection of this application is included.
Referring to fig. 6, fig. 6 is a schematic diagram illustrating an embodiment of a computer-readable storage medium according to the present application.
As shown in fig. 6, the present embodiment provides a computer-readable storage medium 600 having a computer program 611 stored thereon, the computer program 611, when executed by a processor, implementing the steps of:
acquiring the vertical distance between an ultrasonic probe at each detection point in a plurality of detection points and the axial plane of the target roller;
calculating the distance between a target detection plane at each detection point and the axis of the target roller according to the vertical distance between the ultrasonic probe and the axis plane of the target roller at each detection point, wherein the target detection plane is the plane where the connecting line of the ultrasonic probe and the receiver is located;
performing first axis inclination compensation by using the distance between two target detection planes corresponding to two adjacent detection points in the plurality of detection points and the axis of the target roller to obtain a plurality of first compensation distances;
and calculating a first profile of the target roll by using the plurality of first compensation distances.
In a specific implementation, the computer program 611 may implement any of the embodiments corresponding to fig. 1 when executed by a processor.
It should be noted that, in the foregoing embodiments, the descriptions of the respective embodiments have respective emphasis, and reference may be made to relevant descriptions of other embodiments for parts that are not described in detail in a certain embodiment.
As will be appreciated by one skilled in the art, embodiments of the present application may be provided as a method, system, or computer program product. Accordingly, the present application may take the form of an entirely hardware embodiment, an entirely software embodiment or an embodiment combining software and hardware aspects. Furthermore, the present application may take the form of a computer program product embodied on one or more computer-usable storage media (including, but not limited to, disk storage, CD-ROM, optical storage, and the like) having computer-usable program code embodied therein.
The present application is described with reference to flowchart illustrations and/or block diagrams of methods, apparatus (systems), and computer program products according to embodiments of the application. It will be understood that each flow and/or block of the flow diagrams and/or block diagrams, and combinations of flows and/or blocks in the flow diagrams and/or block diagrams, can be implemented by computer program instructions. These computer program instructions may be provided to a processor of a general purpose computer, special purpose computer, embedded computer, or other programmable data processing apparatus to produce a machine, such that the instructions, which execute via the processor of the computer or other programmable data processing apparatus, create means for implementing the functions specified in the flowchart flow or flows and/or block diagram block or blocks.
These computer program instructions may also be stored in a computer-readable memory that can direct a computer or other programmable data processing apparatus to function in a particular manner, such that the instructions stored in the computer-readable memory produce an article of manufacture including instruction means which implement the function specified in the flowchart flow or flows and/or block diagram block or blocks.
These computer program instructions may also be loaded onto a computer or other programmable data processing apparatus to cause a series of operational steps to be performed on the computer or other programmable apparatus to produce a computer implemented process such that the instructions which execute on the computer or other programmable apparatus provide steps for implementing the functions specified in the flowchart flow or flows and/or block diagram block or blocks.
Embodiments of the present application also provide a computer program product, which includes computer software instructions, when the computer software instructions are run on a processing device, cause the processing device to execute the flow of the roll profile calculating method in the embodiment corresponding to fig. 1.
The computer program product includes one or more computer instructions. When loaded and executed on a computer, cause the processes or functions described in accordance with the embodiments of the application to occur, in whole or in part. The computer may be a general purpose computer, a special purpose computer, a network of computers, or other programmable device. The computer instructions may be stored on a computer readable storage medium or transmitted from one computer readable storage medium to another, for example, from one website, computer, server, or data center to another website, computer, server, or data center via wire (e.g., coaxial cable, fiber optic, Digital Subscriber Line (DSL)) or wireless (e.g., infrared, wireless, microwave, etc.). The computer-readable storage medium can be any available medium that a computer can store or a data storage device, such as a server, a data center, etc., that is integrated with one or more available media. The usable medium may be a magnetic medium (e.g., floppy disk, hard disk, magnetic tape), an optical medium (e.g., DVD), or a semiconductor medium (e.g., Solid State Disk (SSD)), among others.
It is clear to those skilled in the art that, for convenience and brevity of description, the specific working processes of the above-described systems, apparatuses and units may refer to the corresponding processes in the foregoing method embodiments, and are not described herein again.
In the several embodiments provided in the present application, it should be understood that the disclosed system, apparatus and method may be implemented in other manners. For example, the above-described apparatus embodiments are merely illustrative, and for example, the division of the units is only one logical division, and other divisions may be realized in practice, for example, a plurality of units or components may be combined or integrated into another system, or some features may be omitted, or not executed. In addition, the shown or discussed mutual coupling or direct coupling or communication connection may be an indirect coupling or communication connection through some interfaces, devices or units, and may be in an electrical, mechanical or other form.
The units described as separate parts may or may not be physically separate, and parts displayed as units may or may not be physical units, may be located in one place, or may be distributed on a plurality of network units. Some or all of the units can be selected according to actual needs to achieve the purpose of the solution of the embodiment.
In addition, functional units in the embodiments of the present application may be integrated into one processing unit, or each unit may exist alone physically, or two or more units are integrated into one unit. The integrated unit can be realized in a form of hardware, and can also be realized in a form of a software functional unit.
The integrated unit, if implemented in the form of a software functional unit and sold or used as a stand-alone product, may be stored in a computer readable storage medium. Based on such understanding, the technical solution of the present application may be substantially implemented or contributed to by the prior art, or all or part of the technical solution may be embodied in a software product, which is stored in a storage medium and includes instructions for causing a computer device (which may be a personal computer, a server, or a network device) to execute all or part of the steps of the method according to the embodiments of the present application. And the aforementioned storage medium includes: various media capable of storing program codes, such as a usb disk, a removable hard disk, a Read-Only Memory (ROM), a Random Access Memory (RAM), a magnetic disk, or an optical disk.
The above embodiments are only used for illustrating the technical solutions of the present application, and not for limiting the same; although the present application has been described in detail with reference to the foregoing embodiments, it should be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; such modifications and substitutions do not depart from the spirit and scope of the corresponding technical solutions in the embodiments of the present application.
Claims (10)
1. A roll profile calculation method, comprising:
acquiring the vertical distance between an ultrasonic probe at each detection point in a plurality of detection points and the axial plane of the target roller;
calculating the distance between a target detection plane at each detection point and the axis of the target roller according to the vertical distance between the ultrasonic probe and the axis plane of the target roller at each detection point, wherein the target detection plane is the plane where the connecting line of the ultrasonic probe and the receiver is located;
performing first axis inclination compensation by using the distance between two target detection planes corresponding to two adjacent detection points in the plurality of detection points and the axis of the target roller to obtain a plurality of first compensation distances;
and calculating a first profile of the target roll by using the plurality of first compensation distances.
2. The method of claim 1, wherein calculating the distance of the target detection plane from the axis of the target roll at each detection point based on the perpendicular distance of the ultrasonic probe from the axis plane of the target roll at each detection point comprises:
calculating the distance between the target detection plane and the axis of the target roll at each detection point by using the following formula:
wherein L isAFor said purpose at said each detection pointThe distance between a target detection plane and the axis of the target roller, theta is the incident angle of the ultrasonic probe, H is the distance between the ultrasonic probe and the receiver, r is the radius of the target roller, and s is the perpendicular distance between the ultrasonic probe and the axis of the target roller at each detection point.
3. The method of claim 2, wherein the performing first axis tilt compensation using distances from the axis of the target roll by two target detection planes corresponding to two adjacent detection points of the plurality of detection points to obtain a plurality of first compensation distances comprises:
obtaining the plurality of first compensation distances using the following equation:
wherein L is compensated1For one of the first compensation distances, LA0The distance L between the target detection plane corresponding to the first detection point of the two adjacent detection points and the axis of the target rollerA1The distance between the target detection plane corresponding to the second detection point of the two adjacent detection points and the axis of the target roller is W, the length of the target roller is W, the distance between the two adjacent detection points is C, and the first detection point is positioned before the second detection point.
4. The method of claim 3, wherein the method further comprises:
performing second axis inclination compensation on the vertical distance between the ultrasonic probe and the axis plane of the target roller at each detection point by using the following formula to obtain a corresponding second compensation distance at each detection point:
wherein s is compensated2For each corresponding second compensation distance, sA0And sA1The perpendicular distance between the two ultrasonic probes and the axis plane of the target roller, and s, acquired at each detection pointA0And sA1The interval of the acquisition time of (2) is matched with the time length of one rotation of the target roller along the circumferential direction.
5. The method of any of claims 1 to 4, further comprising:
acquiring the ultrasonic wave speed and the transmission time at each detection point in the plurality of detection points, wherein the transmission time is the time for the ultrasonic wave transmitted by the ultrasonic probe to be reflected by the target roller and received by the receiver, and the ultrasonic wave speed at each detection point is related to the temperature at each detection point;
calculating the temperature compensation distance between the target detection plane and the axis of the target roller at each detection point according to the ultrasonic wave speed and the transmission time at each detection point;
and calculating a second profile of the target roller according to the temperature compensation distance between the target detection plane at each detection point in the plurality of detection points and the axis of the target roller.
6. The method of claim 5, wherein calculating the temperature compensation distance of the target detection plane from the axis of the target roll at each detection point based on the ultrasonic wave speed and the transmission time at each detection point comprises:
calculating a temperature compensation distance of the target detection plane at each detection point from an axis of the target roll by the following formula:
wherein L isTCompensating the distance, C, of the target detection plane from the axis of the target roll at each detection pointTFor the ultrasonic wave velocity, t, at each of the detection pointsTFor the transit time at each of said detection points, CrIs the ultrasonic wave velocity at the reference temperature, trThe time L of the ultrasonic wave emitted by the ultrasonic probe at the reference temperature reflected by the target roller and received by the receiverrThe distance between the target detection plane and the axis of the target roller at the reference temperature is obtained.
7. The method of claim 3 or 4, wherein the distance C between two adjacent detection points is 100 mm to 200 mm.
8. A roll profile calculating apparatus, comprising:
the acquisition module is used for acquiring the vertical distance between the ultrasonic probe at each detection point in the plurality of detection points and the axis plane of the target roller;
the first calculation module is used for calculating the distance between a target detection plane at each detection point and the axis of the target roller according to the vertical distance between the ultrasonic probe and the axis plane of the target roller at each detection point, wherein the target detection plane is a plane where the connecting line of the ultrasonic probe and the receiver is located;
the compensation module is used for performing first axis inclination compensation by using the distance between the two target detection planes corresponding to two adjacent detection points in the plurality of detection points and the axis of the target roller to obtain a plurality of first compensation distances;
and the second calculation module is used for calculating the first profile of the target roller by using the plurality of first compensation distances.
9. An electronic device comprising a memory, a processor, wherein the processor is configured to implement the steps of the roll profile calculation method according to any one of claims 1 to 7 when executing a computer program stored in the memory.
10. A computer-readable storage medium having stored thereon a computer program, characterized in that: the computer program, when being executed by a processor, realizes the steps of the roll profile calculation method as set forth in any one of claims 1 to 7.
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| CN202110190051.5A CN112880604A (en) | 2021-02-18 | 2021-02-18 | Roll profile calculation method and related equipment |
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| Application Number | Priority Date | Filing Date | Title |
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| US5015300A (en) * | 1988-12-07 | 1991-05-14 | Schorling Gmbh & Co. Waggonbau | Method and apparatus for adjusting a preselected sweeping surface width of a revolving roll-type brush |
| JPH1164309A (en) * | 1997-08-26 | 1999-03-05 | Kobe Steel Ltd | Method and apparatus for measuring material characteristic of roll material |
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Application publication date: 20210601 |