An automatic compensation control method, system, device and medium

Abstract

The application discloses an automatic compensation control method, system, device and medium, comprising the following steps: obtaining the thickness data of the roller body on the roller mill; wherein the roller body comprises a main shaft, a roller cylinder and a roller skin which are sequentially sleeved from inside to outside, and the thickness data is the thickness of the roller skin in the roller body; determining whether the thickness data is less than a preset thickness threshold, if yes, obtaining an adjustment control signal to automatically compensate the linear speed and / or linear pressure of the roller body; wherein the adjustment control signal comprises a frequency increasing signal and a pressure reducing signal, the frequency increasing signal is a signal for increasing the frequency of a frequency converter, the frequency converter is electrically connected with a motor for driving the roller body to rotate, the pressure reducing signal is a signal for reducing the output pressure of a hydraulic cylinder, and the hydraulic cylinder is used for movably abutting against the roller body; if not, returning to obtaining the thickness data of the roller body on the roller mill, and the application has the advantages of automatic adjustment compensation, high adjustment accuracy and improved work efficiency.

Description

Technical Field

[0001] This application relates to the field of automation control technology, and in particular to an automatic compensation control method, system, device and medium. Background Technology

[0002] Roller mills, as grinding equipment, are widely used in the cement, metal mining, and sand and gravel aggregate industries due to their low energy consumption and high output. Roller mills grind materials using moving and stationary rollers. ， Both the moving and stationary rollers are structures composed of a main shaft, a roller, and a roller skin, sequentially nested from the inside out. When the roller skin is in its initial state, the roller linear speed and the linear pressure between the moving and stationary rollers both reach their designed ideal values, resulting in optimal product quality and maintaining the designed output level. However, as the roller surface wears, the roller diameter decreases with increasing wear. The roller linear speed is directly proportional to the roller diameter, decreasing as the diameter decreases, and the output is also directly proportional to the roller linear speed, decreasing as the linear speed decreases. The linear pressure between the moving and stationary rollers is inversely proportional to the roller diameter, increasing as the roller diameter decreases, causing the gradation and fineness modulus of the produced product to deviate from the optimal range. At this point, it is necessary to adjust the motor speed and hydraulic pressure to return the roller linear speed and the linear pressure between the moving and stationary rollers to their designed ideal values, respectively.

[0003] The existing methods for adjusting the linear speed of the rollers and the linear pressure between the moving and stationary rollers in roller mills mainly rely on manual adjustment. Due to the limited personnel and technical level on the production site, manual adjustment is prone to large human errors and has low accuracy. It not only requires repeated adjustments but is also quite complicated and requires a high level of human experience, resulting in low work efficiency. Summary of the Invention

[0004] The main objective of this application is to provide an automatic compensation control method, system, device, and medium, which aims to solve the technical problem that the existing methods for adjusting the linear speed of the rollers and the linear pressure between the moving and stationary rollers in roller mills mainly rely on manual adjustment, resulting in low work efficiency.

[0005] To achieve the above objectives, this application provides an automatic compensation control method, comprising the following steps:

[0006] Obtain the thickness measurement data of the roller body on the roller mill; wherein, the roller body includes the main shaft, the roller cylinder and the roller skin that are sequentially sleeved from the inside to the outside, and the thickness measurement data is the thickness of the roller skin in the roller body;

[0007] Determine whether the thickness measurement data is less than the preset thickness threshold. If so, obtain the adjustment control signal to automatically compensate for the linear speed and / or linear pressure of the roller. The adjustment control signal includes a frequency increase signal and a voltage decrease signal. The frequency increase signal is a signal that increases the frequency of the frequency converter, which is electrically connected to a motor for driving the roller to rotate. The voltage decrease signal is a signal that reduces the output pressure of the hydraulic cylinder, which is used to move and press against the roller.

[0008] If not, return to obtaining the thickness measurement data of the roller body on the roller mill.

[0009] Optionally, the roller body includes a moving roller body and a fixed roller body, and both the moving roller body and the fixed roller body include a main shaft, a roller and a roller skin that are sequentially sleeved from the inside to the outside;

[0010] Obtain thickness measurement data of the roller body on the roller mill, including:

[0011] Obtain the first thickness measurement data corresponding to the moving roller body on the roller mill; wherein, the first thickness measurement data is the thickness of the roller skin in the moving roller body;

[0012] Obtain the second thickness measurement data corresponding to the fixed roller body on the roller mill; wherein, the second thickness measurement data is the thickness of the roller skin in the fixed roller body.

[0013] Optionally, it is determined whether the thickness measurement data is less than a preset thickness threshold; if so, an adjustment control signal is acquired, including:

[0014] Determine whether the first thickness measurement data and / or the second thickness measurement data are less than a preset thickness threshold. If so, acquire the frequency enhancement signal.

[0015] Optionally, determining whether the thickness measurement data is less than a preset thickness threshold, and if so, acquiring an adjustment control signal, further includes:

[0016] Determine whether the average of the first thickness measurement data and the second thickness measurement data is less than a preset thickness threshold. If so, obtain the voltage reduction signal.

[0017] Optionally, let the thickness threshold be H, and the expression for H is:

[0018] H = h - (m + 1)n;

[0019] In the formula, h is the initial value of the thickness of the roller skin in the roller body, m is the number of times that automatic compensation has been performed, and m = 0, 1, 2, 3...m', m' is the upper limit of the number of times, and n is the preset step value.

[0020] Optionally, after acquiring the adjustment control signal to automatically compensate for the linear speed and / or linear pressure of the roller, the method further includes:

[0021] Obtain the current thickness measurement data of the roller body on the roller mill;

[0022] Determine whether the current thickness measurement data is less than the preset critical threshold. If so, obtain a stop signal; the stop signal is a signal that controls the roller mill to stop running.

[0023] Optionally, the thickness measurement data of the roller body on the roller mill is obtained, including:

[0024] Thickness data of the roller body on the roller mill is obtained by using a thickness sensor; the thickness sensor is located between the roller skin and the roller cylinder.

[0025] To achieve the above objectives, this application also provides an automatic compensation control system, comprising:

[0026] The data acquisition module is used to acquire the thickness measurement data of the roller body on the roller mill; wherein, the roller body includes a main shaft, a roller cylinder and a roller skin that are sequentially sleeved from the inside to the outside, and the thickness measurement data is the thickness of the roller skin in the roller body;

[0027] The data processing module is used to determine whether the thickness measurement data is less than the preset thickness threshold. If so, it acquires the adjustment control signal to automatically compensate for the linear speed and / or linear pressure of the roller. The adjustment control signal includes a frequency increase signal and a voltage decrease signal. The frequency increase signal increases the frequency of the frequency converter, which is electrically connected to a motor for driving the roller to rotate. The voltage decrease signal reduces the output pressure of the hydraulic cylinder, which is used to move and press against the roller.

[0028] The loop module is used to return to the source of the thickness measurement data of the roller body on the roller mill if no error is found.

[0029] To achieve the above objectives, this application also provides a computer device, which includes a memory and a processor, wherein the memory stores a computer program, and the processor executes the computer program to implement the above-described method.

[0030] To achieve the above objectives, this application also provides a computer-readable storage medium storing a computer program, on which a processor executes the computer program to implement the above-described method.

[0031] The beneficial effects that this application can achieve are as follows:

[0032] This application acquires real-time thickness data of the roller body on a roller mill. This thickness data represents the thickness of the roller skin, thus characterizing the wear level of the roller skin. It then determines whether the thickness data is less than a preset thickness threshold, i.e., whether it exceeds the theoretical wear level. If so, it acquires an adjustment control signal, which includes a frequency boosting signal and a voltage reduction signal. Since motor speed is directly proportional to frequency, the motor speed changes accordingly. The linear velocity of the roller body is also directly proportional to the motor speed and changes with it. Therefore, the frequency boosting signal is used to increase the inverter frequency, thereby increasing the motor speed and thus the linear velocity of the roller body. The system automatically compensates for the decrease in linear speed caused by roller wear, thus maintaining the initial linear speed of the rollers. On the other hand, since the hydraulic cylinder output pressure is directly proportional to the linear pressure between the rollers, and inversely proportional to the roller diameter, the linear pressure changes with the hydraulic cylinder output pressure. Therefore, a pressure reduction signal is used to reduce the hydraulic cylinder output pressure, thereby reducing the linear pressure between the rollers and maintaining the initial linear pressure. This automatically compensates for the increase in linear pressure caused by the reduction in roller diameter due to wear, achieving the goal of constant linear pressure. In summary, this application can achieve automatic compensation for the linear speed and / or linear pressure of the rollers, reducing tedious manual adjustments, improving work efficiency, and ensuring adjustment accuracy. Attached Figure Description

[0033] To more clearly illustrate the technical solutions in the specific embodiments of this application or the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. In all the drawings, similar elements or parts are generally identified by similar reference numerals. In the drawings, the elements or parts are not necessarily drawn to scale.

[0034] Figure 1 This is a flowchart illustrating an automatic compensation control method according to an embodiment of this application;

[0035] Figure 2 This is a schematic diagram of the roller mill structure in an embodiment of this application;

[0036] Figure 3 This is a schematic diagram of the roller structure in an embodiment of this application.

[0037] Figure label:

[0038] 110-Moving roller body, 120-Fixed roller body, 130-Motor, 140-Control module, 150-Frequency converter, 160-Hydraulic station, 170-Hydraulic cylinder, 180-Main shaft, 190-Roller, 210-Roller skin, 220-Thickness sensor.

[0039] The realization of the purpose, functional features and advantages of this application will be further explained in conjunction with the embodiments and with reference to the accompanying drawings. Detailed Implementation

[0040] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this application, and not all of the embodiments. Based on the embodiments of this application, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of this application.

[0041] It should be noted that all directional indications (such as up, down, left, right, front, back, etc.) in the embodiments of this application are only used to explain the relative positional relationship and movement of each component in a certain specific posture. If the specific posture changes, the directional indication will also change accordingly.

[0042] In this application, unless otherwise expressly specified and limited, the terms "connection," "fixed," etc., should be interpreted broadly. For example, "fixed" can mean a fixed connection, a detachable connection, or an integral part; it can mean a mechanical connection or an electrical connection; it can mean a direct connection or an indirect connection through an intermediate medium; it can mean the internal communication of two components or the interaction between two components, unless otherwise expressly limited. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances.

[0043] Furthermore, if the embodiments of this application involve descriptions such as "first" or "second," these descriptions are for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined with "first" or "second" may explicitly or implicitly include at least one of those features. Additionally, the meaning of "and / or" throughout the text includes three parallel solutions; for example, "A and / or B" includes solution A, solution B, or a solution where both A and B are satisfied simultaneously. Furthermore, the technical solutions of the various embodiments can be combined with each other, but this must be based on the ability of those skilled in the art to implement them. When the combination of technical solutions is contradictory or impossible to implement, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection claimed in this application.

[0044] Example 1

[0045] Reference Figures 1-3 This embodiment provides an automatic compensation control method, including the following steps:

[0046] Obtain the thickness measurement data of the roller body on the roller mill; wherein, the roller body includes a main shaft 180, a roller 190 and a roller skin 210 that are sequentially sleeved from the inside to the outside, and the thickness measurement data is the thickness of the roller skin 210 in the roller body;

[0047] If the thickness measurement data is less than a preset thickness threshold, an adjustment control signal is obtained to automatically compensate for the linear speed and / or linear pressure of the roller. The adjustment control signal includes a frequency increase signal and a voltage decrease signal. The frequency increase signal is a signal that increases the frequency of the frequency converter 150. The frequency converter 150 is electrically connected to a motor 130 for driving the roller 110 to rotate. The voltage decrease signal is a signal that reduces the output pressure of the hydraulic cylinder 170. The hydraulic cylinder 170 is used to move and press against the roller.

[0048] If not, return to obtaining the thickness measurement data of the roller body on the roller mill.

[0049] In this embodiment, the thickness data of the roller body on the roller mill is acquired in real time. This thickness data represents the thickness of the roller skin 210 within the roller body, thus characterizing the wear degree of the roller skin 210. Then, it is determined whether the thickness data is less than a preset thickness threshold, i.e., whether it exceeds the theoretical wear degree. If so, an adjustment control signal is acquired. This adjustment control signal includes a frequency boosting signal and a voltage reduction signal. Since the rotational speed of the motor 130 is directly proportional to the frequency, the rotational speed of the motor 130 changes accordingly. The linear velocity of the roller body is also directly proportional to the rotational speed of the motor 130, changing with the rotational speed of the motor 130. Therefore, the frequency of the inverter 150 is increased by using a frequency boosting signal, thereby increasing the rotational speed of the motor 130. Increasing the linear speed of the roller body to maintain consistency with its initial linear speed automatically compensates for the decrease in linear speed caused by wear of the roller skin 210, achieving a constant linear speed. On the other hand, since the output pressure of the hydraulic cylinder 170 is directly proportional to the linear pressure between the roller bodies, while the linear pressure between the roller bodies is inversely proportional to the roller diameter, the linear pressure changes with the output pressure of the hydraulic cylinder 170. Therefore, a pressure reduction signal is used to reduce the output pressure of the hydraulic cylinder 170, thereby reducing the linear pressure between the roller bodies and maintaining consistency with the initial linear pressure. This automatically compensates for the increase in linear pressure caused by the reduced diameter of the roller skin 210 after wear, achieving a constant linear pressure. In summary, this embodiment can perform real-time online automatic compensation for the linear speed of the roller body and the linear pressure between the moving and stationary rollers, keeping the linear speed and linear pressure constant and consistent with the initial linear speed and linear pressure. This ensures stable output gradation, fineness modulus, and production capacity of the finished product, achieving the ideal design state. It also reduces tedious manual debugging work, improves work efficiency, and ensures adjustment accuracy.

[0050] It should be noted that the frequency boosting signal and the voltage bucking signal can be sent simultaneously, or one of them can be sent separately, depending on the judgment result.

[0051] As an optional implementation, the roller body includes a moving roller body 110 and a fixed roller body 120, and both the moving roller body 110 and the fixed roller body 120 include a main shaft 180, a roller 190 and a roller skin 210 that are sequentially sleeved from the inside to the outside.

[0052] Obtain thickness measurement data of the roller body on the roller mill, including:

[0053] Obtain the first thickness measurement data corresponding to the moving roller body 110 on the roller mill; wherein, the first thickness measurement data is the thickness of the roller skin 210 in the moving roller body 110;

[0054] Obtain the second thickness measurement data corresponding to the fixed roller body 120 on the roller mill; wherein, the second thickness measurement data is the thickness of the roller skin 210 in the fixed roller body 120.

[0055] In this embodiment, since the rollers generally grind the material by rotating in opposite directions between the moving roller 110 and the fixed roller 120, and the moving roller 110 and the fixed roller 120 have the same composition structure, it is necessary to obtain the thickness data of the corresponding roller skin 210, that is, the first thickness measurement data corresponding to the moving roller 110 and the second thickness measurement data corresponding to the fixed roller 120. The first thickness measurement data and the second thickness measurement data respectively characterize the wear degree of the roller skin 210 of the moving roller 110 and the fixed roller 120, which improves the calculation accuracy and provides accurate guidance and reference for subsequent judgment on whether to send frequency-increased signals and / or voltage-decreased signals, avoiding the situation where the data is inaccurate due to only referring to the thickness measurement data of the moving roller 110 or the fixed roller 120.

[0056] As an optional implementation, it is determined whether the thickness measurement data is less than a preset thickness threshold. If so, an adjustment control signal is acquired, including:

[0057] Determine whether the first thickness measurement data and / or the second thickness measurement data are less than a preset thickness threshold. If so, acquire the frequency enhancement signal.

[0058] In this embodiment, since the moving roller 110 and the fixed roller 120 are driven by corresponding motors 130 respectively, when determining whether to acquire and send an amplification signal, it is necessary to adjust the corresponding linear speed according to the wear degree of the roller skin 210 on the moving roller 110 and the fixed roller 120 respectively. Therefore, as long as either the first thickness measurement data or the second thickness measurement data meets the condition of being less than the thickness threshold, the corresponding amplification signal can be acquired and sent to control the corresponding motor 130 to adjust the speed, thereby realizing the function of individually controlling the linear speed of the moving roller 110 and the fixed roller 120.

[0059] As an optional implementation, it further includes determining whether the thickness measurement data is less than a preset thickness threshold; if so, acquiring an adjustment control signal.

[0060] Determine whether the average of the first thickness measurement data and the second thickness measurement data is less than a preset thickness threshold. If so, obtain the voltage reduction signal.

[0061] In this embodiment, when the material passes through the moving roller 110 and the fixed roller 120, pressure is simultaneously generated on both rollers. The hydraulic cylinder 170 is generally movably connected to the moving roller 110. Here, there are two sets of hydraulic cylinders 170, which are movably connected to the two ends of the main shaft 180 of the moving roller 110 through bearing seats. The linear pressure between the moving roller 110 and the fixed roller 120 is provided by controlling the magnitude of the thrust output by the hydraulic cylinder 170. Therefore, when determining whether to acquire and send a pressure reduction signal, it is necessary to calculate the average value of the first thickness measurement data and the second thickness measurement data. This allows for a comprehensive judgment based on the wear degree of the roller skin 210 of the moving roller 110 and the fixed roller 120, avoiding errors caused by a single thickness measurement data and improving the accuracy of the judgment.

[0062] As an optional implementation, let the thickness threshold be H, and the expression for H is:

[0063] H = h - (m + 1)n;

[0064] In the formula, h is the initial thickness of the roller skin 210 in the roller body, m is the number of times that automatic compensation has been performed, and m = 0, 1, 2, 3...m', m' is the upper limit number of times, and n is the preset step value.

[0065] In this embodiment, since the thickness of the roller skin 210 changes each time automatic compensation is performed, the thickness threshold should also be adjusted accordingly; otherwise, it will affect the accuracy of the next judgment. Therefore, the thickness setting range of the roller skin 210 is set in steps, with several steps (such as H1, H2, H3, etc.) set according to the thickness of the roller skin 210. The initial thickness threshold setting range of the roller skin 210 is H1. Since the number of compensations is 0 at this time, H1 = hn. When the actual thickness value of the roller skin 210 is detected to be lower than H1 for the first time, the first automatic compensation is completed, and the next cycle begins. In this cycle, the roller skin 210 setting range that the actual thickness value of the roller skin 210 needs to be compared should be H2. At this time, m = 1, so H2 = h - 2n. When the actual thickness value of the roller skin 210 is lower than H2, the second automatic compensation is completed, and so on until the roller skin 210 is consumed. Therefore, based on the above expression for the thickness threshold H, the thickness threshold after each compensation can be automatically adjusted, thereby ensuring the accuracy of data comparison.

[0066] Therefore, based on the above expression for the thickness threshold H, for example: the initial diameter of the roller body is 1000mm, and the thickness of the roller skin 210 is 200mm (i.e., h = 200mm), the value is input into the control system as the initial parameter. Nine steps are set according to the thickness of the roller skin 210 of 200mm, with each step being 20mm (i.e., n = 20mm). When the detected thickness of the roller skin 210 is 200mm > thickness > 180mm, the equipment operates normally; when the detected thickness of the roller skin 210 is < 180mm, the control module 140 can transmit signals to the frequency converter 150 and the hydraulic station 160 (used to control the oil inlet and outlet of the hydraulic cylinder 170). After receiving the signal, the frequency converter 150 increases the frequency by 1Hz, the speed of the motor 130 increases by 20rpm, and after receiving the signal, the hydraulic station 160 reduces the pressure by 0.2MPa, completing the first automatic compensation and entering the next cycle. When the detected thickness of roller skin 210 is 180mm > 160mm, the equipment operates normally. When the detected thickness of roller skin 210 is ≤ 160mm, the control module 140 transmits signals to the frequency converter 150 and the hydraulic station 160 respectively. After receiving the signal, the frequency converter 150 increases the frequency by 1Hz, the motor 130 increases the speed by 20rpm, and the hydraulic station 160 decreases the pressure by 0.2MPa after receiving the signal, completing the second automatic compensation and entering the next cycle. After completing 8 cycles, the system prompts to replace roller skin 210. When the detected thickness of roller skin 210 reaches the 9th step, the system forcibly stops the machine and replaces roller skin 210.

[0067] As an optional implementation, after acquiring the adjustment control signal to automatically compensate for the linear speed and / or linear pressure of the roller, the method further includes:

[0068] Obtain the current thickness measurement data of the roller body on the roller mill;

[0069] Determine whether the current thickness measurement data is less than the preset critical threshold. If so, obtain a stop signal; the stop signal is a signal that controls the roller mill to stop running.

[0070] In this embodiment, after multiple compensations, it is necessary to calculate whether the current thickness measurement data has reached the critical threshold. Here, the critical threshold can be the minimum roller skin thickness of 210. When the critical threshold is reached, a stop signal is obtained, thereby controlling the roller mill to automatically stop running and avoid damage to the roller mill caused by continued operation.

[0071] As an optional implementation, obtaining thickness measurement data of the roller body on the roller mill includes:

[0072] The thickness data of the roller body on the roller mill is obtained by the thickness sensor 220; wherein, the thickness sensor 220 is set between the roller skin 210 and the roller 190.

[0073] In this embodiment, the thickness data of the roller body on the roller mill can be obtained online by the thickness sensor 220. The thickness sensor 220 is a sensor that can sense the thickness of the object being measured and convert it into a usable output signal (such as an analog current and voltage signal or a digital signal) to meet the detection requirements.

[0074] Based on the above control method, the working principle of the hardware part is as follows: Thickness sensors 220 are installed between the roller skin 210 and the roller drum 190 of both the moving roller body 110 and the stationary roller body 120. These sensors are used to detect the thickness of the roller skin 210 in real time. During use, the thickness sensors 220 installed in the groove of the roller drum 190 transmit the detected thickness of the roller skin 210 to the wireless transmitting device in real time. The wireless transmitting device wirelessly transmits the collected data to the control module 140. The control module 140 compares this data with the thickness threshold of the roller skin 210. If the thickness is lower than the threshold, the control module 140 sends a signal to the frequency converter 150 and the hydraulic station 160. The frequency converter 150 receives the signal... After receiving the signal, the frequency is adjusted. Since the speed of motor 130 is directly proportional to the frequency, the speed of motor 130 changes accordingly. The linear speed of the roller is also directly proportional to the speed of motor 130, changing with the speed of motor 130, thus maintaining consistency with the initial linear speed of the roller and achieving the goal of constant roller linear speed. On the other hand, after receiving the signal from control module 140, hydraulic station 160 automatically adjusts the system pressure, and the output thrust of hydraulic cylinder 170 changes accordingly. Since the output thrust of hydraulic cylinder 170 is directly proportional to the linear pressure between moving roller 110 and fixed roller 120, the linear pressure changes with the thrust, thus maintaining consistency with the initial linear pressure and achieving the goal of constant linear pressure.

[0075] Example 2

[0076] Reference Figures 1-3 Based on the same inventive concept as the foregoing embodiments, this embodiment also provides an automatic compensation control system, including:

[0077] The data acquisition module is used to acquire the thickness measurement data of the roller body on the roller mill; wherein, the roller body includes a main shaft 180, a roller 190 and a roller skin 210 that are sequentially sleeved from the inside to the outside, and the thickness measurement data is the thickness of the roller skin 210 in the roller body;

[0078] The data processing module is used to determine whether the thickness measurement data is less than a preset thickness threshold. If so, it acquires an adjustment control signal to automatically compensate for the linear speed and / or linear pressure of the roller. The adjustment control signal includes a frequency increase signal and a voltage decrease signal. The frequency increase signal is a signal that increases the frequency of the frequency converter 150. The frequency converter 150 is electrically connected to a motor 130 for driving the roller 110 to rotate. The voltage decrease signal is a signal that reduces the output pressure of the hydraulic cylinder 170. The hydraulic cylinder 170 is used to move and press against the roller.

[0079] The loop module is used to return to the source of the thickness measurement data of the roller body on the roller mill if no error is found.

[0080] The explanations and examples of each module in the device of this embodiment can be referred to the methods of the foregoing embodiments, and will not be repeated here.

[0081] Example 3

[0082] Based on the same inventive concept as the foregoing embodiments, this embodiment provides a computer device, which includes a memory and a processor. The memory stores a computer program, and the processor executes the computer program to implement the above-described method.

[0083] Example 4

[0084] Based on the same inventive concept as the foregoing embodiments, this embodiment provides a computer-readable storage medium storing a computer program, and a processor executes the computer program to implement the above-described method.

[0085] The above are merely preferred embodiments of this application and do not limit the patent scope of this application. Any equivalent structural or procedural transformations made using the content of this application's specification and drawings, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of this application.

Claims

1. An automatic compensation control method, characterized in that, Includes the following steps: Obtaining thickness measurement data of the roller body on a roller mill; wherein the roller body includes a main shaft, a roller cylinder, and a roller skin sequentially fitted from the inside out, the thickness measurement data is the thickness of the roller skin in the roller body, the roller body includes a moving roller body and a fixed roller body, and both the moving roller body and the fixed roller body include a main shaft, a roller cylinder, and a roller skin sequentially fitted from the inside out; obtaining the thickness measurement data of the roller body on the roller mill includes: obtaining first thickness measurement data corresponding to the moving roller body on the roller mill; wherein the first thickness measurement data is the thickness of the roller skin in the moving roller body; obtaining second thickness measurement data corresponding to the fixed roller body on the roller mill; wherein the second thickness measurement data is the thickness of the roller skin in the fixed roller body; The process involves determining whether the thickness measurement data is less than a preset thickness threshold. If so, an adjustment control signal is acquired to automatically compensate for the linear speed and / or linear pressure of the roller. The adjustment control signal includes a frequency increase signal and a voltage decrease signal. The frequency increase signal increases the frequency of a frequency converter, which is electrically connected to a motor for driving the roller. The voltage decrease signal reduces the output pressure of a hydraulic cylinder, which is used to actively press against the roller. The determination of whether the thickness measurement data is less than the preset thickness threshold, and if so, acquiring the adjustment control signal, includes: determining whether the first thickness measurement data and / or the second thickness measurement data are less than the preset thickness threshold; if so, acquiring the frequency increase signal; and determining whether the average value of the first thickness measurement data and the second thickness measurement data is less than the preset thickness threshold; if so, acquiring the voltage decrease signal. If not, return to the step of obtaining the thickness measurement data of the roller body on the roller mill.

2. The automatic compensation control method as described in claim 1, characterized in that, ... The thickness threshold is H, and the expression for H is: H = h - (m+1)n; In the formula, h is the initial value of the thickness of the roller skin in the roller body, m is the number of times that automatic compensation has been performed, and m = 0, 1, 2, 3...m', m' is the upper limit of the number of times, and n is the preset step value.

3. The automatic compensation control method as described in claim 1, characterized in that, After acquiring the adjustment control signal to automatically compensate for the linear speed and / or linear pressure of the roller, the method further includes: Obtain the current thickness measurement data of the roller body on the roller mill; Determine whether the current thickness measurement data is less than a preset critical threshold. If so, obtain a stop signal; wherein, the stop signal is a signal that controls the roller mill to stop running.

4. The automatic compensation control method as described in claim 1, characterized in that, The acquisition of thickness measurement data of the upper roller body of the roller mill includes: The thickness data of the roller body on the roller mill is obtained by a thickness sensor; wherein the thickness sensor is disposed between the roller skin and the roller cylinder.

5. An automatic compensation control system, characterized in that, include: A data acquisition module is used to acquire thickness measurement data of the roller body on a roller mill. The roller body includes a main shaft, a roller cylinder, and a roller skin sequentially fitted from the inside out. The thickness measurement data is the thickness of the roller skin within the roller body. The roller body includes a moving roller body and a fixed roller body, and both the moving roller body and the fixed roller body include a main shaft, a roller cylinder, and a roller skin sequentially fitted from the inside out. Acquiring the thickness measurement data of the roller body on the roller mill includes: acquiring first thickness measurement data corresponding to the moving roller body on the roller mill; wherein the first thickness measurement data is the thickness of the roller skin within the moving roller body; and acquiring second thickness measurement data corresponding to the fixed roller body on the roller mill; wherein the second thickness measurement data is the thickness of the roller skin within the fixed roller body. A data processing module is used to determine whether the thickness measurement data is less than a preset thickness threshold. If so, it acquires an adjustment control signal to automatically compensate for the linear speed and / or linear pressure of the roller. The adjustment control signal includes a frequency increase signal and a voltage decrease signal. The frequency increase signal increases the frequency of a frequency converter, which is electrically connected to a motor for driving the roller to rotate. The voltage decrease signal reduces the output pressure of a hydraulic cylinder, which is used to actively press against the roller. The process of determining whether the thickness measurement data is less than the preset thickness threshold and acquiring the adjustment control signal includes: determining whether the first thickness measurement data and / or the second thickness measurement data are less than the preset thickness threshold; if so, acquiring the frequency increase signal; and determining whether the average value of the first thickness measurement data and the second thickness measurement data is less than the preset thickness threshold; if so, acquiring the voltage decrease signal. The loop module is used to return to the process of obtaining the thickness measurement data of the roller body on the roller mill if no error is found.

6. A computer device, characterized in that, The computer device includes a memory and a processor, wherein the memory stores a computer program and the processor executes the computer program to implement the method as described in any one of claims 1-4.

7. A computer-readable storage medium, characterized in that, The computer-readable storage medium stores a computer program, and the processor executes the computer program to implement the method as described in any one of claims 1-4.

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