A method and device for calculating displacement of a transverse beam, and a storage medium

Abstract

The present application relates to a kind of transverse beam displacement calculation method, device and storage medium, it is related to metallurgical rolling technical field.The method is used to adjust the gap between roll system of cold rolling mill, roll system includes roll structure and support structure, support structure includes support roll, swing arm and transverse beam, roll structure includes work roll and intermediate roll, displacement sensor is provided on transverse beam, and the method includes: according to roll structure and support structure, the relational expression of roll system is established;According to relational expression, construct original equation group;Original equation group is simplified using trigonometric function relationship, and target equation group is obtained;According to target equation group, first variable is solved, wherein, first variable is the angle of swing arm rotation in the operation process of cold rolling mill;First variable is substituted into original equation group and is solved, and transverse beam displacement data is obtained.The beneficial effects of the present application are: improve the transverse beam displacement calculation efficiency and accuracy of the gap adjustment of cold rolling mill roll system.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of metallurgical rolling, in particular to a calculation method and device for displacement of a transverse beam and a storage medium. BACKGROUND

[0002] In the metallurgical industry, an eighteen-roller cold rolling mill can roll ultra-thin high-precision steel plates. On the basis of a traditional six-roller rolling mill, side support rollers are added to improve the rolling stiffness and thus control the thickness of the steel plate. Therefore, the position control of the side support transverse beam of the eighteen-roller cold rolling mill is very high. In the process of rolling thin plates, the diameters of the rollers in the roller system gradually decrease due to wear. When a certain degree is reached, in order to ensure that the thickness of the thin plate in the later period still meets the requirements, the transverse beam or other movable components must be adjusted to ensure that the eighteen-roller cold rolling mill roller system is in close contact again.

[0003] At present, the displacement or gap adjustment of the transverse beam in the eighteen-roller cold rolling mill needs to be calculated step by step by the experience of workers on site or a nonlinear equation is constructed according to the geometric relationship of each roller on site, and the equation is solved numerically to achieve the adjustment. The calculation accuracy is limited and the steps are complicated, and the automation is low. It is difficult to efficiently and cost-effectively achieve the above calculation on site in the workshop, which increases the time for precision adjustment during the shutdown of the cold rolling mill, causes economic losses, and affects the work efficiency of workers and the economic benefits of the factory. SUMMARY

[0004] The problem solved by the present application is how to improve the calculation efficiency and accuracy of the transverse beam displacement for adjusting the gap of the cold rolling mill roller system.

[0005] To solve the above problems, the present application provides a calculation method and device for displacement of a transverse beam and a storage medium.

[0006] In a first aspect, the present application provides a calculation method for displacement of a transverse beam for adjusting the gap of a cold rolling mill roller system, wherein the roller system includes a roller structure and a support structure, the support structure includes a support roller, a swing arm and a transverse beam, the roller structure includes a work roller and an intermediate roller, and a displacement sensor is arranged on the transverse beam. The method comprises the following steps:

[0007] establishing a relationship expression of the roller system according to the roller structure and the support structure;

[0008] constructing an original equation set according to the relationship expression;

[0009] simplifying the original equation set by using a trigonometric function relationship to obtain a target equation set;

[0010] solving a first variable according to the target equation set, wherein the first variable is the angle of rotation of the swing arm after the cold rolling mill operates for a period of time;

[0011] Substitute the first variable into the original equation set to solve, and obtain the cross beam displacement data.

[0012] Therefore, according to the roller structure and the support structure, the relationship expression of the roller system is established, and the original equation set is constructed according to the relationship expression, the cross beam displacement solving equation set is established, and the cross beam displacement can be obtained by solving the equation set, thereby improving the calculation efficiency. The original equation set is simplified by using the trigonometric function relationship to obtain the target equation set, the first variable is solved according to the target equation set, the variable is solved by using the trigonometric function relationship, the accurate analytical solution of the first variable is obtained through rigorous mathematical derivation, the precision loss is avoided, and the accuracy of the cross beam displacement calculation is increased. Substitute the first variable into the original equation set to solve, and obtain the cross beam displacement, avoid the nonlinear equation set solving problem when adjusting the gap after each change of the roller diameter, the operation is simple, and has high applicability. While ensuring the accuracy, the time for calculating the cross beam displacement of the production line shutdown is greatly shortened, the cross beam displacement calculation efficiency is effectively improved, a large amount of shutdown economic loss of enterprises can be reduced, and economic benefits can be created.

[0013] Optionally, establishing the relationship expression of the roller system according to the roller structure and the support structure includes:

[0014] According to the roller structure and the support structure, the positions of the working roller center, the intermediate roller center, the support roller center, and the displacement sensor are determined;

[0015] According to the position relationship of the working roller center, the intermediate roller center, the support roller center, and the displacement sensor, the relationship expression of the roller system is established.

[0016] Optionally, constructing the original equation set according to the relationship expression includes:

[0017] The original equation set is constructed according to the contact geometric relationship between each roller in the roller system and the relationship expression.

[0018] Optionally, the original equation set is simplified by using the trigonometric function relationship to obtain the target equation set, and the first variable is solved according to the target equation set, including:

[0019] The intermediate constant is obtained, and the original equation set is simplified by using the intermediate constant to obtain a first equation set;

[0020] The first equation set is preprocessed to obtain a second equation set;

[0021] The second equation set is simplified by using the sum angle formula to obtain the target equation set;

[0022] Solving the first variable according to the target equation group, wherein the first variable is the only unknown variable in the target equation group.

[0023] Optionally, the obtaining of the cross beam displacement data comprises:

[0024] Displaying the cross beam displacement data in the form of an electronic table.

[0025] Optionally, the method for calculating the cross beam displacement for the gap adjustment of the roll system of the cold rolling mill further comprises:

[0026] Substituting the cross beam displacement data back into the original equation group to obtain a verification parameter of the roll system, wherein the verification parameter is the structural parameter of the roll system after adjustment according to the cross beam displacement data;

[0027] Drawing a two-dimensional graph according to the structural parameter;

[0028] Verifying whether the cross beam displacement data conforms to the motion law of the roll system of the cold rolling mill according to the two-dimensional graph.

[0029] Optionally, the roll system of the cold rolling mill comprises a left roll system and a right roll system, and step S1 comprises establishing a relational expression of the roll system according to the roll structure and the support structure, which comprises:

[0030] Establishing the relational expression of the work roll center in the left roll system by using the difference between the horizontal distance from the swing arm rotation point to the center of the intermediate roll in the left roll system and the work roll offset in the left roll system;

[0031] Establishing the relational expression of the work roll center in the right roll system by using the sum of the horizontal distance from the swing arm rotation point to the center of the intermediate roll in the right roll system and the work roll offset in the right roll system; wherein the work roll offset is the horizontal distance between the work roll center and the center of the intermediate roll in the left roll system or the right roll system.

[0032] In a second aspect, the present application further provides a cross beam displacement calculation device for adjusting the gap of a roll system of a cold rolling mill, wherein the roll system comprises a roll structure and a support structure, the support structure comprises a support roll, a swing arm and a cross beam, the roll structure comprises a work roll and an intermediate roll, a displacement sensor is arranged on the cross beam, and the cross beam displacement calculation device comprises:

[0033] A construction module, which is configured to establish a relational expression of the roll system according to the roll structure and the support structure, and to construct an original equation group according to the relational expression;

[0034] a processing module, configured to simplify the original equation set by using a trigonometric function relationship to obtain a target equation set; and the processing module is further configured to solve a first variable according to the target equation set, wherein the first variable is an angle of rotation of the swing arm during operation of the cold rolling mill;

[0035] a calculation module, configured to substitute the first variable into the original equation set to obtain the displacement data of the cross beam.

[0036] In a third aspect, the present application further provides a computer device comprising a memory and a processor;

[0037] the memory is configured to store a computer program;

[0038] the processor is configured to implement the calculation method of the displacement of the cross beam when the computer program is executed.

[0039] In a fourth aspect, the present application further provides a computer readable storage medium, wherein the storage medium stores a computer program, and the computer program is executed by a processor to implement the calculation method of the displacement of the cross beam. BRIEF DESCRIPTION OF DRAWINGS

[0040] Figure 1 a flowchart of the calculation method of the displacement of the cross beam according to the embodiment of the present application;

[0041] Figure 2 a schematic diagram of the roll system structure of the cold rolling mill according to the embodiment of the present application Figure 1 ;

[0042] Figure 3 a schematic diagram of the roll system structure of the cold rolling mill according to the embodiment of the present application Figure 2 ;

[0043] Figure 4 a two-dimensional verification graph of the local contact between the work roll and the backup roll according to the embodiment of the present application;

[0044] Figure 5 a two-dimensional verification graph of the local contact between the work roll and the backup roll according to the embodiment of the present application;

[0045] Figure 6 a two-dimensional verification graph of the local contact between the work roll and the backup roll according to the embodiment of the present application;

[0046] Figure 7 a structural diagram of the calculation device of the displacement of the cross beam according to the embodiment of the present application;

[0047] Figure 8 an internal structure diagram of the computer device according to the embodiment of the present application.

[0048] REFERENCE SIGNS

[0049] 1-working roll; 2-intermediate roll; 3-support roll; 4-back-up bearing; 5-swinging arm; 6-swinging hydraulic cylinder; 7-crossing beam. DETAILED DESCRIPTION

[0050] In order to make the above objectives, features and advantages of the present application more apparent, specific embodiments of the present application are described in detail below with reference to the accompanying drawings.

[0051] In the description of the embodiments of the present application, the description of the term "some embodiments" means that the specific features, structures, materials or characteristics described in connection with the embodiments or examples are included in at least one embodiment or example of the present application. In the present specification, the illustrative description of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0052] Referring to Figure 1 As shown in the figure, the embodiment of the present application provides a calculation method for the displacement of the crossing beam, which is used to adjust the gap between the roll systems of the eighteen-roll cold rolling mill, as shown in the figure Figure 2 As shown in the figure, the roll system includes a roll structure and a support structure, the support structure includes a support roll 3, a back-up bearing 4, a swinging arm 5, a swinging hydraulic cylinder 6 and a crossing beam 7, the crossing beam is provided with a displacement sensor, and the roll structure includes a working roll 1 and an intermediate roll 2. The method comprises the following steps:

[0053] Step S1, according to the roll structure and the support structure, a relational expression of the roll system is established;

[0054] Step S2, according to the relational expression, an original equation set is constructed;

[0055] Step S3, the original equation set is simplified by using the trigonometric function relationship to obtain a target equation set;

[0056] Step S4, according to the target equation set, a first variable is solved, wherein the first variable is the angle of rotation of the swinging arm after the cold rolling mill runs for a period of time;

[0057] Step S5, the first variable is substituted into the original equation set to solve, and the displacement data of the crossing beam is obtained.

[0058] Specifically, in step S1, a coordinate axis with the swing arm rotation point as the origin can be established, and the coordinates of each point (e.g., the center of each roll) in the roll structure and the support structure required for calculating the displacement of the cross beam are obtained, the required distances (e.g., the diameters of each roll) are calculated according to the coordinates of each point, and the relationship expression of the roll structure and the support structure in the roll train is established according to the coordinates of each point and the required distances. In step S2, an equation set for calculating the displacement of the cross beam is established according to the relationship expression, wherein there are three unknown variables in the equation set, i.e., the angle θ of the swing arm rotation, the displacement X1 of the cross beam, and the stroke Y1 of the displacement sensor. In step S3, the original equation set is converted into a trigonometric function relationship form, such as F+Gsin(τ+θ)=R, and the original equation set is simplified by using methods such as the sum angle formula to obtain a target equation. In step S4, the target equation is simplified to include only the first variable (i.e., the angle θ of the swing arm rotation), and the value of the first variable can be obtained by using methods such as the sum angle formula. In step S5, the first variable obtained by solving the target equation set is substituted into the original equation set, and the original equation is solved according to the relationship expression and the known constant to obtain the displacement of the cross beam.

[0059] In the embodiment, the relationship expression of the roll train is established according to the roll structure and the support structure, and an original equation set is constructed according to the relationship expression to establish a displacement solving equation set of the cross beam. The displacement of the cross beam can be obtained by solving the equation set, thereby improving the calculation efficiency. The original equation set is simplified by using a trigonometric function relationship to obtain a target equation set. The first variable is solved according to the target equation set, the variable is solved by using a trigonometric function relationship, the accurate analytical solution of the first variable is obtained through rigorous mathematical derivation, the precision loss is avoided, and the accuracy of the calculation of the displacement of the cross beam is increased. The first variable is substituted into the original equation set to solve the original equation set and obtain the displacement of the cross beam, thereby avoiding the problem of solving a nonlinear equation set when adjusting the gap after each roll diameter change, the operation is simple, and the application is high. While ensuring the accuracy, the time for calculating the displacement of the cross beam during the production line shutdown is greatly shortened, the calculation efficiency of the displacement of the cross beam is effectively improved, a large amount of economic loss caused by the shutdown of the enterprise can be reduced, and economic benefits can be created.

[0060] Optionally, in step S1, establishing the relationship expression of the roll train according to the roll structure and the support structure comprises:

[0061] Step S110, determining the positions of the work roll center, the intermediate roll center, the support roll center, and the displacement sensor according to the roll structure and the support structure;

[0062] Step S120, establishing the relationship expression of the roll train according to the positional relationship of the work roll center, the intermediate roll center, the support roll center, and the displacement sensor.

[0063] Specifically, in combination withFigure 2 and Figure 3 As shown in the figure, a coordinate system is established with the swing arm 5 rotation point as the origin O, wherein the X axis represents the lateral direction, that is, the left-right position, and the positive direction of the X axis, that is, the arrow direction of the X axis, represents the right, and the negative direction of the X axis, that is, the direction opposite to the positive direction of the X axis, represents the left; in the figure, the Y axis represents the vertical direction, that is, the up-down position, and the positive direction of the Y axis, that is, the arrow direction of the Y axis, represents the up, and the negative direction of the Y axis, that is, the direction opposite to the positive direction of the Y axis, represents the down. It should be noted that the aforementioned X axis and Y axis represent the meaning only for the convenience of the simplified description of the present application, and do not indicate or imply that the device must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present application. According to the roll system structure, the working roll center O1 and the diameter D1, the intermediate roll center O2 and the diameter D2, the backup roll center O3 and the diameter D3, the backup bearing centers D and E, the center point M of the line connecting the backup bearing centers D and E, the arc guide plate center R, and the displacement sensor contact point G with the arc guide plate are determined, and then according to the coordinate system, the relationship expression of the roll system (that is, the coordinates of each point) is determined. Taking the right roll system as an example, there are several constant quantities in the roll system, which remain unchanged during the movement of the roll system, including: (1) the distance |OR| of the R point from the O point; (2) the X and Y coordinates O2x, O2y of the intermediate roll center O2 from the O point; (3) the Y direction distance of the displacement sensor center axis from the lower edge of the working roll; (4) the diameter of the displacement sensor and the top corner (assuming no wear all the time). In order to describe the position of the roll center, the angle and displacement parameters of the roll system and the transverse beam at a certain initial position are also given, which are used as the initial point to establish the equation. These angle and displacement parameters are also constant and do not change after the design is finalized. Among them, the initial angle (acute angle) between OR and the Y axis is 40.68°, and OR = 376.1325 mm. Then according to the above data, the initial coordinates of the R point are:

[0064] [Rx, Ry] = [-|OR|sin(40.68), -|OR|cos(40.68)],

[0065] The initial angle (acute angle) between OM and the Y axis is 14.59°, and |OM| = 309.4259 mm; the horizontal distance between the origin O and the intermediate roll center O2 is 335 mm, and the vertical distance is 89.5 mm, so the coordinates of the intermediate roll center O2 are: [O2x, O2y] = [-335, -89.5] and the coordinates of the working roll center O1 are:

[0066]

[0067] Set the displacement of the transverse beam as X1, the angle of the swing arm as θ and the stroke of the displacement sensor as Y1, and the initial coordinates of the G point can be obtained by pushing down according to the horizontal distance between the transverse beam and the supporting roller, the lower edge coordinates of the work roller, the diameter of the displacement sensor and the chamfer (assuming 1mm) as follows:

[0068]

[0069] When the roller diameter changes due to wear, in order to keep the same eccentricity L1, the swing arm must rotate the three supporting rollers around the rotation point O by an angle θ, at this time, the acute angles between OR, OM and the Y axis are all increased, so the coordinates of the R point and the M point are respectively changed to:

[0070] [Rx, Ry] = [-|OR|sin(40.68 + θ), -|OR|cos(40.68 + θ)],

[0071] [Mx, My] = [-|OM|sin(14.59 + θ), -|OM|cos(14.59 + θ)].

[0072] Since O3DE is an isosceles triangle, O3M is the height of the base, so according to the Pythagorean theorem, we have:

[0073] |O3M| 2 = |O3E| 2 + |ME| 2 ,

[0074] It is known that the diameters of the side supporting rollers D and E are 97mm, and the distance between the centers DE is 98mm, so we have:

[0075]

[0076] Therefore, the coordinates of the supporting roller center O3 are:

[0077] [O3x, O3y] = [-|OM|sin(14.59 + θ) - |O3M|cos(24.99 - θ), -|OM|cos(14.59 + θ) - |O3M|sin(24.99 - θ)].

[0078] In this embodiment, the positions of each structure of the roller system are determined, and the accurate relationship expression of the roller system is constructed according to the position relationship, the accurate position relationship data of each roller system is obtained, which is convenient for subsequent construction of equation set and calculation of the displacement data of the transverse beam, and can effectively improve the accuracy of the displacement calculation of the transverse beam.

[0079] Optionally, step S2 comprises:

[0080] ​Step S210, according to the contact geometry relationship between each roller in the roller system and the relationship expression, an original equation group is constructed.

[0081] Specifically, referring to Figure 2 As shown in the figure, each structure in the roller system is connected according to the motion law of the roller system, and has a specific contact geometry relationship. According to the specific contact geometry relationship of the roller system and the above-mentioned expression relationship of each structure, an original equation group is constructed:

[0082] |O1O3| 2 =(O1x-O3x) 2 +(O1y-O3y) 2 (1)

[0083] |RG| 2 =(Rx-Gx) 2 +(Ry-Gy) 2 (2)

[0084] X1=|RG|+335+Rx (3)

[0085] Wherein, the known constant |RG| = 392.5, |O1O3| = D1 / 2+D3 / 2 and the work roll offset are all known constant values or user input values. Therefore, the equation group (1), (2), (3) has three unknown quantities X1, Y1 and θ, which can be solved jointly, that is, the cross beam displacement data is obtained.

[0086] In this embodiment, the equation group is constructed according to the relationship expression of each structure in the roller system, and the cross beam displacement can be quickly calculated according to the known quantity, which effectively improves the calculation efficiency of the cross beam displacement, reduces a large amount of economic loss caused by shutdown for enterprises, and creates economic benefits.

[0087] Optionally, step S3, the original equation group is simplified by using the trigonometric function relationship to obtain a target equation group, and the first variable is solved according to the target equation group, comprising:

[0088] Step S310, obtaining the intermediate constant, and simplifying the original equation group to obtain a first equation group by using the intermediate constant;

[0089] Step S320, preprocessing the first equation group to obtain a second equation group;

[0090] Step S330, simplifying the second equation group by using the sum angle formula to obtain the target equation group;

[0091] Step S340, solving the first variable according to the target equation group, wherein the first variable is the only unknown variable in the target equation group.

[0092] Specifically, define where a = |OM|, b = |O3M|, according to formula (1) expansion can be obtained:

[0093]

[0094] The left end of the above formula is further simplified as:

[0095] (-a sinα-b cosβ+k1) 2 +(-a cosα-b sinβ+k2) 2 ,

[0096] where k1 = 335-L1,

[0097] Thus, the left end is fully expanded to obtain:

[0098]

[0099] Get the intermediate constant A, then the first equation of the simplified original equation group is:

[0100]

[0101] A = -2ak1sinα-2bk1cosβ-2ak2cosα-2bk2sinβ,

[0102] The above formula is moved and the common factor is extracted to obtain the second equation group:

[0103] A-2(a(k1sinα+k2cosα)+b(k1cosβ+k2sinβ)),

[0104] According to the angle formula sinαcosγ+sinγcosα=sin(α+γ) to simplify the second equation group to obtain the target equation group:

[0105]

[0106] Other terms in the second equation group can be simplified by similar methods, and then k1 = 335-L1, Finally, θ can be solved.

[0107] In addition, given the position of the first variable θ, θ is substituted into the original equation group to solve the displacement X1 of the horizontal moving beam and the stroke Y1 of the displacement sensor.

[0108] In this embodiment, the original equation is solved by using the trigonometric function relationship to obtain the analytical solution of the first variable. In subsequent calculations, the first variable is substituted into the original equation set to quickly calculate the accurate data of the transverse beam displacement. According to the transverse beam data, the transverse beam is adjusted to ensure the calculation accuracy and increase the transverse beam displacement calculation efficiency.

[0109] Optionally, in step S5, the obtaining of the transverse beam displacement data comprises:

[0110] In step S510, the transverse beam displacement data is displayed in the form of an electronic table.

[0111] In this embodiment, the transverse beam displacement data is displayed in the form of an electronic table, which enables the user to quickly and intuitively obtain the transverse beam displacement data through the electronic table and timely adjust the transverse beam according to the transverse beam displacement data, thereby ensuring the normal operation of the cold rolling mill roll system and improving the production efficiency.

[0112] Optionally, the method for calculating the transverse beam displacement for adjusting the gap of the cold rolling mill roll system further comprises:

[0113] The transverse beam displacement data is substituted back into the original equation set to obtain the verification parameters of the roll system, wherein the verification parameters are the structural parameters of the roll system after adjustment according to the transverse beam displacement data;

[0114] According to the structural parameters, a two-dimensional graph is drawn, as shown in Figure 4 ;

[0115] According to the two-dimensional graph, it is verified whether the transverse beam displacement data conforms to the motion law of the cold rolling mill roll system.

[0116] Specifically, in order to further enlarge, clearly display and verify the contact or gap between the rollers, and focus on the key parts, the drawing verification is performed, as shown in Figure 5 、 Figure 6 The above verification graphs can clearly show that the working roller and the support roller, the side support roller maintain a close contact relationship, and no deviation is found (there is always a 1mm gap between the two roller circular profiles, which conforms to the roll system motion law).

[0117] In this embodiment, the transverse beam displacement data obtained by calculation is substituted into the original equation set to inversely deduce the adjusted roll system structural parameters, and the corresponding two-dimensional graph is drawn. According to the two-dimensional graph, it can be verified whether the transverse beam displacement data conforms to the roll system motion law and the accuracy, so as to ensure that the calculated transverse beam displacement data meets the requirements and increase the accuracy and work efficiency of the transverse beam displacement data.

[0118] Optionally, the cold rolling mill roller system comprises a left roller system and a right roller system, and the relationship expression of the roller system is established according to the roller structure and the support structure, comprising:

[0119] The relationship expression of the work roll center in the left roller system is established by using the difference between the horizontal distance from the swing arm turning point in the left roller system to the center of the intermediate roll in the left roller system and the work roll offset in the left roller system;

[0120] The relationship expression of the work roll center in the right roller system is established by using the sum of the horizontal distance from the swing arm turning point in the right roller system to the center of the intermediate roll in the right roller system and the work roll offset in the right roller system; wherein the work roll offset is the horizontal distance between the work roll center and the center of the intermediate roll in the left roller system or the right roller system.

[0121] Specifically, the cold rolling mill has two roller systems, which are the upper roller system and the lower roller system that are symmetrical above and below, and the upper roller system and the lower roller system respectively comprise left and right symmetrical left roller systems and right roller systems. Because the left and right roller systems have different running directions, there is a certain difference in constructing the expression. That is, the work roll center expression of the left roller system is constructed according to the difference between the horizontal distance of the center of the intermediate roll in the left roller system and the work roll offset in the left roller system The work roll center expression of the right roller system is constructed according to the difference between the horizontal distance of the center of the intermediate roll in the right roller system and the work roll offset in the right roller system The other steps S1 to S5 are the same.

[0122] In this embodiment, the relationship expressions are respectively constructed according to the structural differences of the left roller system and the right roller system, which can improve the calculation accuracy when calculating the displacement data of the cross beam of the whole roller system of the cold rolling mill, and avoid the confusion of the displacement data of the cross beam of the left and right roller systems. The calculation efficiency of the cross beam displacement is effectively improved by constructing the relationship expressions in different zones, so as to improve the production efficiency of the workshop.

[0123] As shown in Figure 7 The present embodiment also provides a cross beam displacement calculation device for adjusting the gap of the roller system of a cold rolling mill, wherein the roller system comprises a roller structure and a support structure, the support structure comprises a support roll, a swing arm and a cross beam, the roller structure comprises a work roll and an intermediate roll, the cross beam is provided with a displacement sensor, and the cross beam displacement calculation device comprises:

[0124] A construction module 710 is configured to establish a relationship expression of the roller system according to the roller structure and the support structure; and the construction module is further configured to construct an original equation set according to the relationship expression;

[0125] The processing module 720 is configured to simplify the original equation set by using a trigonometric function relationship to obtain a target equation set; and the processing module is further configured to solve a first variable according to the target equation set, wherein the first variable is an angle of rotation of the swing arm during operation of the cold rolling mill.

[0126] The calculation module 730 is configured to substitute the first variable into the original equation set to solve and obtain transverse beam displacement data.

[0127] The construction module 710 in the embodiment is further configured to determine positions of a working roll center, an intermediate roll center, a support roll center and a displacement sensor according to the roll structure and the support structure; and establish a relationship expression of the roll train according to a positional relationship of the working roll center, the intermediate roll center, the support roll center and the displacement sensor.

[0128] The construction module 710 in the embodiment is further configured to construct an original equation set according to a contact geometric relationship of each roll between the roll trains and the relationship expression.

[0129] The processing module 720 in the embodiment is further configured to obtain the intermediate constant, simplify the original equation set by using the intermediate constant to obtain a first equation set; pre-process the first equation set to obtain a second equation set; simplify the second equation set by using a sum angle formula to obtain the target equation set; and solve the first variable according to the target equation set, wherein the first variable is a unique unknown variable in the target equation set.

[0130] The construction module 710 in the embodiment is further configured to establish the relationship expression of the working roll center in the left roll train by using a difference between a horizontal distance from a swing arm turning point in the left roll train to the intermediate roll center in the left roll train and a working roll offset in the left roll train; and establish the relationship expression of the working roll center in the right roll train by using a sum of the horizontal distance from the swing arm turning point in the right roll train to the intermediate roll center in the right roll train and the working roll offset in the right roll train, wherein the working roll offset is a horizontal distance between the working roll center and the intermediate roll center in the left roll train or the right roll train.

[0131] The transverse beam displacement calculation device and the transverse beam displacement calculation method have the same advantages as the prior art, and thus details are not repeated here.

[0132] The embodiment of the application further provides a computer device, including a memory and a processor;

[0133] The memory is configured to store a computer program.

[0134] The processor is configured to implement the method for calculating the displacement of the transverse beam when executing the computer program.

[0135] Figure 8 An internal structure diagram of a computer device in an embodiment is shown. The computer device includes a processor, a memory, a network interface, an input device and a display screen connected through a system bus. The memory includes a non-volatile storage medium and an internal memory. The non-volatile storage medium of the computer device stores an operating system and can also store a computer program. The computer program, when executed by the processor, can enable the processor to implement the method for calculating the displacement of the transverse beam. The internal memory can also store a computer program. The computer program, when executed by the processor, can enable the processor to execute the method for calculating the displacement of the transverse beam. The display screen of the computer device can be a liquid crystal display screen or an electronic ink display screen. The input device of the computer device can be a touch layer overlaid on the display screen, or can be a key, trackball or touchpad arranged on the shell of the computer device, or can be an external keyboard, touchpad or mouse, etc.

[0136] The electronic device of the embodiment of the present application has similar advantages to the method for calculating the displacement of the transverse beam described above, and thus will not be described again.

[0137] The embodiment of the present application further provides a computer readable storage medium, and the storage medium stores a computer program. When the computer program is executed by a processor, the method for calculating the displacement of the transverse beam described above is implemented.

[0138] Those skilled in the art can understand that all or part of the processes in the above-mentioned embodiment methods can be completed by instructing the relevant hardware through a computer program. The program can be stored in a non-volatile computer readable storage medium, and when the program is executed, the processes of the above-mentioned embodiments of the methods can be included. Any reference to memory, storage, database or other medium used in the embodiments provided in the present application can include non-volatile and / or volatile memory. Non-volatile memory can include read-only memory (ROM), programmable ROM (PROM), electrically programmable ROM (EPROM), electrically erasable programmable ROM (EEPROM) or flash memory. Volatile memory can include random access memory (RAM) or external cache memory. As an illustration but not limitation, RAM is available in various forms, such as static RAM (SRAM), dynamic RAM (DRAM), synchronous DRAM (SDRAM), double data rate SDRAM (DDR SDRAM), enhanced SDRAM (ESDRAM), synchronous link (Synchlink) DRAM (SLDRAM), memory bus (Rambus) direct RAM (RDRAM), direct memory bus dynamic RAM (DRDRAM), and memory bus dynamic RAM (RDRAM), etc.

[0139] Although the present disclosure is disclosed as above, the protection scope of the present disclosure is not limited to this. Those skilled in the art can make various changes and modifications without departing from the spirit and scope of the present disclosure, and these changes and modifications will fall within the protection scope of the present disclosure.

Claims

1. A method for calculating the displacement of a cross beam for adjusting the gap between the roll train of a cold rolling mill, the roll train comprising a roll structure and a support structure, the support structure comprising a support roll, a swing arm and a cross beam, the roll structure comprising a work roll and an intermediate roll, the cross beam being provided with a displacement sensor, characterized in that, The method comprises the following steps: establishing a relationship expression of the roller system according to the roller structure and the support structure; constructing an original equation set according to the relationship expression; simplifying the original equation set by using a trigonometric function relationship to obtain a target equation set; solving a first variable according to the target equation set, wherein the first variable is an angle of rotation of the swing arm during operation of the cold rolling mill; substituting the first variable into the original equation set to solve and obtain transverse beam displacement data.

2. The method of calculating the displacement of a traversing beam according to claim 1, characterized in that, The step of establishing a relationship expression of the roller system according to the roller structure and the support structure comprises: determining positions of a working roller center, an intermediate roller center, a support roller center and a displacement sensor according to the roller structure and the support structure; establishing a relationship expression of the roller system according to a positional relationship of the working roller center, the intermediate roller center, the support roller center and the displacement sensor.

3. The method of calculating the displacement of a traversing beam according to claim 2, characterized in that, The step of constructing an original equation set according to the relationship expression comprises: constructing an original equation set according to a contact geometric relationship between each roller in the roller system and the relationship expression.

4. The method of calculating the displacement of a traversing beam according to claim 1, wherein, The step of simplifying the original equation set by using a trigonometric function relationship to obtain a target equation set, and solving a first variable according to the target equation set comprises: obtaining an intermediate constant, and simplifying the original equation set by using the intermediate constant to obtain a first equation set; preprocessing the first equation set to obtain a second equation set; simplifying the second equation set by using a sum angle formula to obtain the target equation set; solving the first variable according to the target equation set, wherein the first variable is a unique unknown variable in the target equation set.

5. The method of calculating the displacement of a traversing beam according to claim 1, wherein, The step of obtaining transverse beam displacement data comprises: displaying the transverse beam displacement data in an electronic form.

6. The method of calculating the displacement of a traversing beam according to claim 1, wherein, The method for calculating transverse beam displacement for gap adjustment of a roller system of a cold rolling mill further comprises: substituting the transverse beam displacement data back into the original equation set to obtain verification parameters of the roller system, wherein the verification parameters are structural parameters of the roller system after adjustment according to the transverse beam displacement data; drawing a two-dimensional graph according to the structural parameters; verifying whether the transverse beam displacement data conforms to a motion rule of the roller system of the cold rolling mill according to the two-dimensional graph.

7. The method of calculating the displacement of a traversing beam according to claim 2, wherein, The roller system of the cold rolling mill comprises a left roller system and a right roller system, and the step of establishing a relationship expression of the roller system according to the roller structure and the support structure comprises: establishing the relationship expression of the working roller center in the left roller system by using a difference between a horizontal distance from a swing arm turning point to the intermediate roller center in the left roller system and a working roller offset in the left roller system; establishing the relationship expression of the working roller center in the right roller system by using a sum of the horizontal distance from the swing arm turning point to the intermediate roller center in the right roller system and the working roller offset in the right roller system; wherein the working roller offset is a horizontal distance between the working roller center and the intermediate roller center in the left roller system or the right roller system.

8. A device for calculating the displacement of a cross beam for adjusting the gap between the roll train of a cold rolling mill, the roll train comprising a roll structure and a support structure, the support structure comprising a support roll, a swing arm and a cross beam, the roll structure comprising a work roll and an intermediate roll, the cross beam being provided with a displacement sensor, characterized in that, The transverse beam displacement calculation device comprises: a construction module, configured to establish a relational expression of the roller system according to the roller structure and the support structure; the construction module is further configured to construct an original equation set according to the relational expression; a processing module, configured to simplify the original equation set by using a trigonometric function relationship to obtain a target equation set; the processing module is further configured to solve a first variable according to the target equation set, wherein the first variable is an angle of rotation of the swing arm during operation of the cold rolling mill; a calculation module, configured to substitute the first variable into the original equation set to solve and obtain the cross beam displacement data.

9. A computer device, comprising: comprising a memory and a processor; the memory is configured to store a computer program; the processor is configured to implement the calculation method of the cross beam displacement when the computer program is executed.

10. A computer-readable storage medium, characterized in that, the storage medium has the computer program stored thereon, and the calculation method of the cross beam displacement is implemented when the computer program is executed by the processor.

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