Wear prediction method, electronic equipment, impact crusher and readable storage medium
By establishing a wear prediction model for the impact crusher, the wear amount of impact lining plates and plate hammers is predicted, and the discharge port size is automatically adjusted, the problems of unstable material crushing caused by wear and high maintenance costs are solved, and efficient and economical equipment maintenance and production process are achieved.
Patent Information
- Application Number
- CN202411628651.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2024-11-14
- Publication Date
- 2025-03-11
Smart Images
Figure CN119599149A_ABST
Abstract
Description
Technical Field
[0001] The present invention relates to the technical field of engineering machinery, and in particular to a wear prediction method, electronic equipment, an impact crusher and a computer-readable storage medium. Background Art
[0002] During the mining process, the impact crusher's working environment is harsh, which will cause wear on the impact liner and hammer. The wear phenomenon will cause the following problems: 1) Wear will cause the discharge port to increase, making it impossible to fully crush the material, resulting in the discharge particle size exceeding the standard, and the product cannot meet the expected particle size requirements. This problem is particularly prominent in production with strict requirements on particle size. 2) When the wear reaches a certain level, the impact liner and hammer must be replaced in time, otherwise it will further reduce the working performance of the impact crusher, and may even cause equipment failure or damage, increase maintenance costs and downtime, and affect the stability and economic benefits of the overall production operation. Therefore, it is necessary to conduct real-time or regular inspections of the wear of the impact liner and hammer.
[0003] At present, the existing detection method is usually to manually open the crusher cover and use tools to measure the wear of the plate hammer and the impact liner. Then, based on the measurement results, the operator determines whether it is necessary to adjust the angle of the discharge port cover to control the size of the discharge port, or decide whether to replace the impact liner and plate hammer, etc. However, the above method is inefficient, increasing the difficulty of equipment maintenance and downtime. However, how to effectively detect the wear of the impact liner and plate hammer has been under research. Summary of the invention
[0004] The purpose of this application is to provide a wear prediction method, electronic equipment, impact crusher and computer-readable storage medium, which can quickly and accurately predict the wear of impact liners and hammers, and is easy to operate, efficient and low-cost.
[0005] To achieve the above objectives:
[0006] In a first aspect, an embodiment of the present application provides a wear prediction method, comprising:
[0007] Get the working time of the impact crusher in this operation;
[0008] The working time is input into the trained wear prediction model of the impact crusher to obtain the wear amount of the impact liner and the plate hammer of the impact crusher during this operation output by the wear prediction model of the impact crusher; the wear prediction model of the impact crusher is established based on the working time of historical operations and the wear amount of the impact liner and the plate hammer during historical operations.
[0009] Optionally, the process of establishing the impact crusher wear prediction model includes:
[0010] Based on the wear characteristics of the impact crusher, determining an initial basis function and a model evaluation index for describing the relationship between the wear amount and the working time;
[0011] Based on the working time of historical operations, the wear amounts of the impact liner and the plate hammer during historical operations, and the model evaluation index, the basis function is fitted by the least squares method to obtain the impact crusher wear prediction model.
[0012] Optionally, the method further comprises:
[0013] Determining a target opening of the discharge port according to the wear amounts of the impact liner and the plate hammer during the current operation and the current opening of the discharge port in the impact crusher;
[0014] Based on the corresponding relationship between different openings of the discharge port and the propulsion amount of the electronically controlled hydraulic cylinder, determining a target propulsion amount corresponding to the target opening;
[0015] The propulsion amount of the electronically controlled hydraulic cylinder is controlled to be the target propulsion amount, so that the opening of the discharge port in the impact crusher is the target opening.
[0016] Optionally, the wear amount includes wear thickness; and determining the target opening of the discharge port according to the wear amounts of the impact liner and the plate hammer during the current operation and the current opening of the discharge port in the impact crusher, comprises:
[0017] The difference between the current opening and the wear thickness of the impact liner and the plate hammer during this operation is determined as the target opening of the discharge port.
[0018] Optionally, the method further comprises:
[0019] According to the wear amount and the worn amount of the impact liner and the plate hammer respectively during this operation, the accumulated wear amount corresponding to the impact liner and the plate hammer respectively is determined and output.
[0020] Optionally, the method further comprises:
[0021] When the accumulated wear amount corresponding to the target component is greater than or equal to the corresponding preset wear amount threshold, a prompt message for replacing the target component is output; the target component is at least one of the following: the impact liner and the plate hammer.
[0022] Optionally, the method further comprises:
[0023] Determine the remaining wearable thickness of the impact liner and the plate hammer respectively according to the accumulated wear amount and the initial thickness of the impact liner and the plate hammer respectively;
[0024] Based on the remaining wearable thicknesses of the impact liner and the plate hammer respectively corresponding to each other, the remaining working time of the impact liner and the plate hammer respectively corresponding to each other is determined and output.
[0025] In a second aspect, an embodiment of the present application provides an electronic device, comprising: a processor and a memory storing a computer program, and when the processor runs the computer program, the above-mentioned wear prediction method is implemented.
[0026] In a third aspect, an embodiment of the present application provides an impact crusher, comprising the electronic device as described in the second aspect.
[0027] In a fourth aspect, an embodiment of the present application provides a computer-readable storage medium, in which a computer program is stored. When the computer program is executed by a processor, the above-mentioned wear prediction method is implemented.
[0028] The wear prediction method, electronic device, impact crusher and computer-readable storage medium provided by the embodiment of the present application include: obtaining the working time of the impact crusher in this operation; inputting the working time into the trained wear prediction model of the impact crusher to obtain the wear amount of the impact liner and the plate hammer of the impact crusher respectively during this operation output by the wear prediction model of the impact crusher; the wear prediction model of the impact crusher is established based on the working time of the historical operation and the wear amount of the impact liner and the plate hammer respectively during the historical operation. In this way, after the wear prediction model of the impact crusher is established based on the working time of the historical operation and the wear amount of the impact liner and the plate hammer respectively during the historical operation, the wear amount of the impact liner and the plate hammer respectively during each operation is predicted by the wear prediction model of the impact crusher, so that the wear amount of the impact liner and the plate hammer can be predicted quickly and accurately, and the operation is convenient, efficient and low-cost. At the same time, there is no need to shut down the equipment for detection, which reduces the difficulty of equipment maintenance. BRIEF DESCRIPTION OF THE DRAWINGS
[0029] Figure 1 A schematic diagram of a wear prediction method according to an embodiment of the present invention;
[0030] Figure 2 A schematic diagram of the implementation architecture of the wear prediction method provided in an embodiment of the present invention;
[0031] Figure 3 Schematic diagram of the process of establishing the wear amount-time model of the impact crusher in the embodiment of the present invention;
[0032] Figure 4 Schematic diagram of a discharge port width calibration table in an embodiment of the present invention;
[0033] Figure 5 A schematic diagram of the structure of an electronic device provided by an embodiment of the present invention. DETAILED DESCRIPTION
[0034] Exemplary embodiments will be described in detail herein, examples of which are shown in the accompanying drawings. When the following description refers to the drawings, the same numbers in different drawings represent the same or similar elements unless otherwise indicated. The implementations described in the following exemplary embodiments do not represent all implementations consistent with the present application. Instead, they are merely examples of devices and methods consistent with some aspects of the present application as detailed in the appended claims.
[0035] It should be noted that, in this article, the terms "include", "comprises" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also includes other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, an element defined by the sentence "includes a ..." does not exclude the existence of other identical elements in the process, method, article or device including the element. In addition, components, features, and elements with the same name in different embodiments of the present application may have the same meaning or different meanings, and their specific meanings need to be determined by their explanation in the specific embodiment or further combined with the context of the specific embodiment.
[0036] It should be understood that, although the terms first, second, third, etc. may be used to describe various information in this article, these information should not be limited to these terms. These terms are only used to distinguish the same type of information from each other. For example, without departing from the scope of this article, the first information may also be referred to as the second information, and similarly, the second information may also be referred to as the first information. Depending on the context, the word "if" as used herein can be interpreted as "at the time of..." or "when..." or "in response to determination". Furthermore, as used in this article, the singular forms "one", "one" and "the" are intended to also include plural forms, unless there is an opposite indication in the context. It should be further understood that the terms "comprising", "including" indicate that there are described features, steps, operations, elements, components, projects, kinds, and / or groups, but do not exclude the existence, occurrence or addition of one or more other features, steps, operations, elements, components, projects, kinds, and / or groups. The terms "or" and "and / or" used herein are interpreted as inclusive, or mean any one or any combination. Thus, “A, B, or C” or “A, B and / or C” means “any of the following: A; B; C; A and B; A and C; B and C; A, B, and C.” An exception to this definition will occur only when a combination of elements, functions, steps, or operations are inherently mutually exclusive in some manner.
[0037] It should be understood that, although the various steps in the flowchart in the embodiment of the present application are displayed in sequence according to the indication of the arrows, these steps are not necessarily performed in sequence according to the order indicated by the arrows. Unless there is a clear explanation in this article, the execution of these steps does not have a strict order restriction, and it can be performed in other orders. Moreover, at least a portion of the steps in the figure may include a plurality of sub-steps or a plurality of stages, and these sub-steps or stages are not necessarily performed at the same time, but can be performed at different times, and their execution order is not necessarily performed in sequence, but can be performed in turn or alternately with other steps or at least a portion of the sub-steps or stages of other steps.
[0038] It should be noted that, in this article, step codes such as S101, S102, etc. are used for the purpose of expressing the corresponding content more clearly and concisely, and do not constitute a substantial limitation on the sequence. When implementing the step, those skilled in the art may execute S102 first and then S101, etc., but these should all be within the scope of protection of this application.
[0039] It should be understood that the specific embodiments described herein are only used to explain the present application and are not used to limit the present application.
[0040] In the subsequent description, the suffixes such as "module", "component" or "unit" used to represent elements are only used to facilitate the description of the present application, and have no specific meanings. Therefore, "module", "component" or "unit" can be used in a mixed manner.
[0041] See also Figure 1 The embodiment of the present application provides a wear prediction method, which can be executed by a wear prediction device provided by the embodiment of the present application. The wear prediction device can be implemented in software and / or hardware, such as an electronic device such as a processor or controller in an impact crusher. In this embodiment, the execution subject of the wear prediction method is an electronic device as an example. The wear prediction method provided by this embodiment includes:
[0042] Step S101: Obtain the working time of the impact crusher for this operation.
[0043] The working time of each operation of the impact crusher can be obtained by recording the start time and the end time of each operation of the impact crusher; or the working time of each operation of the impact crusher can be obtained by receiving the working time of each operation of the impact crusher manually input by the user, or receiving the working time of each operation of the impact crusher sent by the associated device. In this embodiment, the unit of the working time is hours.
[0044] Step S102: Input the working time into the trained wear prediction model of the impact crusher to obtain the wear amount of the impact liner and the plate hammer of the impact crusher during the current operation output by the wear prediction model of the impact crusher; the wear prediction model of the impact crusher is established based on the working time of the historical operation and the wear amount of the impact liner and the plate hammer during the historical operation.
[0045] Specifically, the working time is input into the trained impact crusher wear prediction model, so that the wear amount of the impact liner and plate hammer of the impact crusher during this operation is predicted by the impact crusher wear prediction model based on the input working time, and the wear amount of the impact liner and plate hammer of the impact crusher during this operation output by the impact crusher wear prediction model is obtained. Among them, the impact crusher wear prediction model can be constructed based on a fitting algorithm such as the least squares method or an artificial intelligence algorithm such as a neural network, a support vector machine, etc., which is not specifically limited here. The wear amount can be wear thickness, wear percentage, etc.
[0046] In one embodiment, the process of establishing the impact crusher wear prediction model includes:
[0047] Based on the wear characteristics of the impact crusher, the initial basis functions and model evaluation indicators used to describe the relationship between wear and working time are determined;
[0048] Based on the working time of historical operations, the wear of the impact liner and hammer during historical operations and the model evaluation indicators, the basis function was fitted by the least squares method to obtain the impact crusher wear prediction model.
[0049] Among them, the wear characteristics of the impact crusher are used to indicate the parts of the impact crusher that are prone to wear during operation, the wear rate of each part changing with the working time, etc. The basis function can be used to describe the relationship between the wear amount and the working time. For example, when the wear amount and the working time are in a quadratic relationship, the basis function can be set to W(t) = a + bt + ct 2 , where W represents the amount of wear, t represents the working time, and a, b and c are constants. Among them, based on the working time of historical operations and the wear of the impact liner and the plate hammer during the historical operations, the basis function is fitted by the least squares method, so that the fitted basis function, i.e., the wear prediction model of the impact crusher, is as close as possible to the data distribution corresponding to the working time and wear of the impact liner and the plate hammer. Among them, when fitting the basis function by the least squares method, the working time of historical operations and the wear of the impact liner and the plate hammer during the historical operations can be specifically divided into training set data and test set data, the basis function is trained by the training set data, and the trained basis function is verified by the test set data to obtain the corresponding model evaluation index value, and then the basis function is optimized in combination with the model evaluation index value.
[0050] It should be noted that the basis function corresponding to the impact liner and the basis function corresponding to the plate hammer may be different, that is, the basis function used to describe the relationship between the wear amount of the impact liner and the working time may be different from the basis function used to describe the relationship between the wear amount of the plate hammer and the working time. Among them, the model evaluation index can be set according to the actual needs, such as the minimum mean square error, regression sum of squares, etc. In this way, the wear prediction model of the impact crusher can be established accurately and quickly, and the wear prediction model of the impact crusher can have good generalization ability and stability.
[0051] In summary, in the wear prediction method provided in the above embodiment, after establishing the impact crusher wear prediction model based on the working time of historical operations and the wear of the impact liner and the plate hammer in the historical operation process, the wear of the impact liner and the plate hammer in each operation process is predicted by the impact crusher wear prediction model, which can achieve fast and accurate prediction of the wear of the impact liner and the plate hammer, and is convenient to operate, efficient and low-cost. At the same time, there is no need to shut down the equipment for inspection, which reduces the difficulty of equipment maintenance.
[0052] In one embodiment, the method further comprises:
[0053] According to the wear amount of the impact liner and the hammer during this operation and the current opening of the discharge port in the impact crusher, the target opening of the discharge port is determined;
[0054] Based on the corresponding relationship between different openings of the discharge port and the propulsion amount of the electronically controlled hydraulic cylinder, a target propulsion amount corresponding to the target opening is determined;
[0055] The thrust amount of the electronically controlled hydraulic cylinder is controlled to be the target thrust amount, so that the opening of the discharge port in the impact crusher is the target opening.
[0056] It can be understood that the wear of the impact liner and the plate hammer will cause the opening of the discharge port in the impact crusher to increase, and the increase in the opening of the discharge port may make the material unable to be fully crushed, resulting in the discharge particle size exceeding the standard. Therefore, the target opening of the discharge port can be determined according to the wear of the impact liner and the plate hammer during this operation and the current opening of the discharge port in the impact crusher, that is, the opening that can be used to ensure that the material is fully crushed and the discharge particle size does not exceed the standard. Here, the correspondence between the different openings of the discharge port and the thrust amount of the electronically controlled hydraulic cylinder can be obtained by analyzing historical data, which will not be repeated here. According to the target opening of the discharge port, the correspondence between the different openings of the discharge port and the thrust amount of the electronically controlled hydraulic cylinder is queried, and the target thrust amount corresponding to the target opening can be obtained, and then the thrust amount of the electronically controlled hydraulic cylinder is controlled to be the target thrust amount, so that the opening of the discharge port in the impact crusher is the target opening. In this way, the thrust amount of the electronically controlled hydraulic cylinder is determined by calculating the target opening of the discharge port, and the electronically controlled hydraulic cylinder is controlled accordingly to control the opening of the discharge port, thereby maintaining the stability of the discharge, reducing manual intervention, and improving the automation level and intelligence of the equipment.
[0057] In one embodiment, the wear amount includes the wear thickness; and according to the wear amounts of the impact liner and the plate hammer during the current operation and the current opening of the discharge port in the impact crusher, determining the target opening of the discharge port includes:
[0058] The difference between the current opening and the wear thickness of the impact liner and the plate hammer during this operation is determined as the target opening of the discharge port.
[0059] Specifically, the difference between the current opening of the discharge port in the impact crusher and the wear thickness of the impact liner during this operation and the wear thickness of the plate hammer during this operation is determined as the target opening of the discharge port.
[0060] Among them, considering that the wear amount of the impact liner and the plate hammer predicted by the wear prediction model of the impact crusher during this operation may be slightly different from the actual wear amount during this operation, in order to further enable the impact crusher to fully crush the material, after obtaining the difference between the current opening and the wear thickness of the impact liner and the plate hammer during this operation, a fixed value can be subtracted, so that the obtained value is used as the target opening of the discharge port. Among them, the current opening of the discharge port in the impact crusher has the same unit as the wear thickness, such as centimeters. It should be noted that by determining the difference between the current opening and the wear thickness of the impact liner and the plate hammer during this operation as the target opening of the discharge port, the opening of the discharge port can be automatically determined, so that the impact crusher can fully crush the material, further improving the automation level and intelligence of the equipment.
[0061] In one embodiment, the method further comprises:
[0062] According to the wear amount and the worn amount of the impact liner and the plate hammer respectively during this operation, the accumulated wear amount corresponding to the impact liner and the plate hammer respectively is determined and output.
[0063] Among them, the worn amount refers to the amount of wear of the impact liner and the plate hammer before this operation. The wear amount of the impact liner and the plate hammer during this operation is added to the corresponding worn amount to obtain the cumulative wear amount of the impact liner and the plate hammer. By outputting the cumulative wear amount of the impact liner and the plate hammer, the user can know the wear of the impact liner and the plate hammer in time. In addition, the wear amount of the impact liner and the plate hammer during this operation can also be output to facilitate users to know the wear amount during each operation in time.
[0064] In one embodiment, the method further comprises:
[0065] When the accumulated wear amount corresponding to the target component is greater than or equal to the corresponding preset wear amount threshold, a prompt message for replacing the target component is output; the target component is at least one of the following: an impact liner and a plate hammer.
[0066] Among them, the preset wear threshold can be set according to the actual needs, for example, it can be set in combination with the initial thickness of the target component, that is, the standard thickness. Among them, when the cumulative wear corresponding to the target component is greater than or equal to the corresponding preset wear threshold, it means that the target component is seriously worn, and a prompt message for replacing the target component can be output to facilitate the user to replace the target component in time. In this way, by outputting a prompt message for replacing the target component when the cumulative wear corresponding to the target component is greater than or equal to the corresponding preset wear threshold, the user can replace the target component in time, prevent the normal operation of the impact crusher from being affected by excessive wear of the target component, further reduce the difficulty of equipment maintenance and improve the equipment work efficiency. At the same time, the service life of the equipment can be extended.
[0067] In one embodiment, the method further comprises:
[0068] According to the accumulated wear amount and the initial thickness of the impact liner and the plate hammer respectively, the remaining wearable thickness of the impact liner and the plate hammer respectively is determined;
[0069] Based on the remaining wearable thickness of the impact liner and the plate hammer respectively, the remaining working time of the impact liner and the plate hammer respectively is determined and output.
[0070] Among them, the initial thickness corresponding to the impact liner and the plate hammer can be the standard thickness corresponding to the impact liner and the plate hammer, that is, the thickness corresponding to the impact liner and the plate hammer when they are not used. In the case where the wear amount is the wear thickness, the remaining wearable thickness corresponding to the impact liner and the plate hammer can be determined according to the cumulative wear amount and the initial thickness corresponding to the impact liner and the plate hammer. For example, the difference between the initial thickness and the cumulative wear amount can be determined as the remaining wearable thickness, or the difference between the value after deducting a safety thickness value from the initial thickness and the cumulative wear amount can be determined as the remaining wearable thickness. The remaining wearable thickness can characterize the thickness that the impact liner and the plate hammer can continue to wear away, that is, the thickness that the impact liner and the plate hammer can still be worn away before reaching a state where they cannot work normally. Since the wear rate can be calculated based on the working time of the historical operation and the wear amount of the impact liner and the plate hammer during the historical operation, the remaining wearable thickness corresponding to the impact liner and the plate hammer can be combined to determine the remaining working time corresponding to the impact liner and the plate hammer. Of course, the remaining working time corresponding to the impact liner and the plate hammer can also be determined by the wear prediction model of the impact crusher. In this way, by determining and outputting the remaining working time corresponding to the impact liner and the plate hammer respectively, the user can replace them in time before the working time reaches the remaining working time, thereby preventing the impact liner and / or plate hammer from causing safety accidents due to excessive wear and affecting the normal operation of the impact crusher, further improving the equipment safety and equipment working efficiency, and further reducing the difficulty of equipment maintenance.
[0071] Based on the same inventive concept as the above embodiments, the method provided by this embodiment is specifically described below through a specific example. In this example, the wear prediction model of the impact crusher is the wear amount-time model of the crusher, and the opening of the discharge port is the width of the discharge port.
[0072] See also Figure 2 The main implementation process of the wear prediction method provided in this embodiment is as follows:
[0073] The whole machine controller of the impact crusher records the working time of the equipment each time, accumulates the working time each time, and calculates the wear of the impact liner and hammer of the impact crusher in real time based on the pre-trained wear-time model. Then, the target width of the discharge port is determined based on the wear and the actual width of the discharge port. Next, the controller will suspend the operation of the equipment and calculate the thrust of the electronically controlled hydraulic cylinder according to the discharge port width calibration table including the correspondence between different widths of the discharge port and the thrust of the electronically controlled hydraulic cylinder. Finally, the controller sends the thrust adjustment instruction to the hydraulic system to adjust the width of the discharge port to the target width to ensure stable discharge. At the same time, the controller will predict the damage time of the impact liner and hammer based on the wear-time model and the accumulated working time of the impact crusher, and remind customers when to replace the corresponding parts.
[0074] The wear amount-time model of the impact crusher used in this example is obtained based on the least squares training. The process of fitting the model by the least squares method is as follows: Figure 3 As shown, it mainly includes the following processes:
[0075] First, the basis function is initially selected based on the wear characteristics of the crusher. It is assumed that the wear amount W and the working time t have a quadratic relationship, reflecting that the initial wear rate is slow, and the wear rate gradually accelerates with the passage of time. The initial basis function is shown in the following formula:
[0076] W(t)=a+bt+ct 2
[0077] Next, determine the fitting evaluation index. In this example, the mean square error (MSE) is selected as the evaluation index, as shown in the following formula:
[0078]
[0079] Where W pred,i is the wear amount predicted by the model, W actual,i is the actual measured wear amount, n is the number of data points, and MSE reflects the error between the model prediction value and the actual value. The smaller the value, the better the fitting effect.
[0080] Next, the optimal model is determined. After selecting the basis function, the model is fitted by the least squares method to determine the parameters a, b and c to best describe the relationship between wear and working time. The parameters are optimized by the minimum mean square error, and the parameter combination that minimizes the MSE is selected to determine the optimal model.
[0081] Finally, model verification. Model verification is an important step to ensure that the model has accurate prediction capabilities in practical applications. The data is divided into training sets and test sets for preliminary verification, cross-validation verification technology is used to improve the reliability of the model, residuals are analyzed to determine the quality of model fitting, and finally the consistency between the model prediction results and the actual wear conditions is verified in actual working conditions to ensure that the model has good generalization ability and stability.
[0082] According to the calibrated thrust x of the electronically controlled hydraulic cylinder and the discharge port width value Y, the discharge port width calibration table can be obtained as Y=f(x), such as Figure 4 shown.
[0083] Here, x is the thrust of the electronically controlled hydraulic cylinder, and Y is the width of the crusher’s discharge port. From the above derivation, we can get the formula Y real =YW chenban -W banchu , where Y real is the actual discharge width of the crusher, W chenban is the wear amount of the impact liner, W banchu is the wear amount of the hammer, and the wear amount is a negative number.
[0084] Among them, according to the discharge port width of the crusher, that is, the target discharge port width, the discharge port width calibration table can be queried to obtain the corresponding thrust amount of the electronically controlled hydraulic cylinder to compensate for the discharge port width error caused by wear.
[0085] In summary, in the wear prediction method provided in the above embodiment, based on the historical working time and wear data of the impact crusher, the least squares method is used to establish a quadratic relationship model between the wear amount and time, so as to intelligently predict the wear amount; at the same time, through the target width of the discharge port, the required propulsion length of the electronically controlled hydraulic cylinder is calculated to achieve precise control and automatic adjustment of the discharge port to ensure the constant discharge size; in addition, the equipment damage time is estimated through the wear prediction model to achieve automatic control and automatic maintenance management of the crusher. Therefore, the above method has the following advantages: 1) Intelligent prediction based on mathematical model: by establishing a mathematical model between the wear amount and the working time, the wear amount and the service life of the equipment can be directly predicted, that is, the wear amount can be automatically calculated according to the working time. Compared with the method of relying on sound and vibration frequency or complex sensor technology for wear prediction, the model prediction method has low cost, strong stability and high accuracy. 2) Adaptive adjustment of the discharge port: based on the wear prediction model and the discharge port width calibration table, the size of the discharge port is controlled by the electronically controlled hydraulic cylinder to maintain the stability of the discharge, reduce manual intervention, and further improve the automation level of the equipment. 3) Advance maintenance: The wear prediction model can be used to predict the time of equipment damage and plan the replacement of worn parts in advance, avoiding the problem of maintaining the equipment only after excessive wear, thereby extending the service life of the equipment.
[0086] Based on the same inventive concept as the above embodiments, an embodiment of the present invention provides an electronic device, such as Figure 5 As shown, the electronic device includes: a processor 310 and a memory 311 storing a computer program; wherein, Figure 5 The processor 310 shown in the figure is not used to indicate that the number of the processor 310 is one, but is only used to indicate the positional relationship of the processor 310 relative to other devices. In actual applications, the number of the processor 310 may be one or more; similarly, Figure 5 The memory 311 shown in the figure has the same meaning, that is, it is only used to refer to the position relationship of the memory 311 relative to other devices. In practical applications, the number of memories 311 can be one or more. When the processor 310 runs the computer program, the wear prediction method described above is implemented.
[0087] The electronic device may also include: at least one network interface 312. The various components in the electronic device are coupled together via a bus system 313. It is understood that the bus system 313 is used to achieve connection and communication between these components. In addition to the data bus, the bus system 313 also includes a power bus, a control bus, and a status signal bus. However, for the sake of clarity, the bus system 313 is not used in the following examples. Figure 5 Various buses are labeled as bus system 313.
[0088] The memory 311 may be a volatile memory or a nonvolatile memory, or may include both volatile and nonvolatile memories. The nonvolatile memory may be a read-only memory (ROM), a programmable read-only memory (PROM), an erasable programmable read-only memory (EPROM), an electrically erasable programmable read-only memory (EEPROM), a magnetic random access memory (FRAM), a flash memory, a magnetic surface memory, an optical disk, or a compact disc read-only memory (CD-ROM); the magnetic surface memory may be a disk memory or a tape memory. The volatile memory may be a random access memory (RAM), which is used as an external cache. By way of example and not limitation, many forms of RAM are available, such as static random access memory (SRAM), synchronous static random access memory (SSRAM), dynamic random access memory (DRAM), synchronous dynamic random access memory (SDRAM), double data rate synchronous dynamic random access memory (DDRSDRAM), enhanced synchronous dynamic random access memory (ESDRAM), synchronous link dynamic random access memory (SLDRAM, SyncLink Dynamic Random Access Memory), and direct RAM bus random access memory (DRRAM, Direct Rambus Random Access Memory).The memory 311 described in the embodiments of the present invention is intended to include but is not limited to these and any other suitable types of memories.
[0089] Based on the same inventive concept as the above embodiments, an embodiment of the present invention provides an impact crusher, comprising the electronic device as described in the above embodiments.
[0090] Based on the same inventive concept as the above-mentioned embodiment, this embodiment further provides a computer storage medium, in which a computer program is stored. The computer storage medium may be a ferromagnetic random access memory (FRAM), a read-only memory (ROM), a programmable read-only memory (PROM), an erasable programmable read-only memory (EPROM), an electrically erasable programmable read-only memory (EEPROM), a flash memory, a magnetic surface memory, an optical disc, or a compact disc read-only memory (CD-ROM); it may also be various devices including one or any combination of the above-mentioned memories, such as a mobile phone, a computer, a tablet device, a personal digital assistant, etc. When the computer program stored in the computer storage medium is executed by the processor, the wear prediction method described above is implemented. For the specific steps implemented when the computer program is executed by the processor, please refer to Figure 1 The description of the illustrated embodiment will not be repeated here.
[0091] The technical features of the above-described embodiments may be arbitrarily combined. To make the description concise, not all possible combinations of the technical features in the above-described embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.
[0092] In this document, the terms "comprises," "comprising," or any other variations thereof, are intended to cover a non-exclusive inclusion of elements other than those listed and may also include additional elements not expressly listed.
[0093] The above is only a specific embodiment of the present invention, but the protection scope of the present invention is not limited thereto. Any person skilled in the art can easily think of changes or substitutions within the technical scope disclosed by the present invention, which should be included in the protection scope of the present invention. Therefore, the protection scope of the present invention should be based on the protection scope of the claims.
Claims
1. A wear prediction method, characterized in that: The method comprises: Get the working time of the impact crusher in this operation; The working time is input into the trained wear prediction model of the impact crusher to obtain the wear amount of the impact liner and the plate hammer of the impact crusher during this operation output by the wear prediction model of the impact crusher; the wear prediction model of the impact crusher is established based on the working time of historical operations and the wear amount of the impact liner and the plate hammer during historical operations.
2. The method according to claim 1, characterized in that The process of establishing the impact crusher wear prediction model includes: Based on the wear characteristics of the impact crusher, determining an initial basis function and a model evaluation index for describing the relationship between the wear amount and the working time; Based on the working time of historical operations, the wear amounts of the impact liner and the plate hammer during historical operations, and the model evaluation index, the basis function is fitted by the least squares method to obtain the impact crusher wear prediction model.
3. The method according to claim 1, characterized in that: The method further comprises: Determining a target opening of the discharge port according to the wear amounts of the impact liner and the plate hammer during the current operation and the current opening of the discharge port in the impact crusher; Based on the corresponding relationship between different openings of the discharge port and the propulsion amount of the electronically controlled hydraulic cylinder, determining a target propulsion amount corresponding to the target opening; The propulsion amount of the electronically controlled hydraulic cylinder is controlled to be the target propulsion amount, so that the opening of the discharge port in the impact crusher is the target opening.
4. The method according to claim 3, characterized in that The wear amount includes the wear thickness; the target opening of the discharge port is determined according to the wear amounts of the impact liner and the plate hammer during the current operation and the current opening of the discharge port in the impact crusher, including: The difference between the current opening and the wear thickness of the impact liner and the plate hammer during this operation is determined as the target opening of the discharge port.
5. The method according to any one of claims 1 to 4, characterized in that The method further comprises: According to the wear amount and the worn amount of the impact liner and the plate hammer respectively during this operation, the accumulated wear amount corresponding to the impact liner and the plate hammer respectively is determined and output.
6. The method according to claim 5, characterized in that The method further comprises: When the accumulated wear amount corresponding to the target component is greater than or equal to the corresponding preset wear amount threshold, a prompt message for replacing the target component is output; the target component is at least one of the following: the impact liner and the plate hammer.
7. The method according to claim 5, characterized in that The method further comprises: Determine the remaining wearable thickness of the impact liner and the plate hammer respectively according to the accumulated wear amount and the initial thickness of the impact liner and the plate hammer respectively; Based on the remaining wearable thicknesses of the impact liner and the plate hammer respectively corresponding to each other, the remaining working time of the impact liner and the plate hammer respectively corresponding to each other is determined and output.
8. An electronic device, characterized in that: include: A processor and a memory storing a computer program, wherein when the processor runs the computer program, the wear prediction method according to any one of claims 1 to 7 is implemented.
9. An impact crusher, characterized in that: Comprising the electronic device as claimed in claim 8.
10. A computer-readable storage medium, characterized in that: A computer program is stored, and when the computer program is executed by a processor, the wear prediction method according to any one of claims 1 to 7 is implemented.