A bearing life determination method, device, equipment and storage medium

Abstract

This application provides a method, apparatus, device, and storage medium for determining bearing life. The method involves determining a first operating condition corresponding to a first bearing; determining the material used to manufacture the first bearing, wherein the first bearing is prepared from the material; determining a first rolling life of the material based on the first operating condition; obtaining a life coefficient between the first bearing and the material, wherein the life coefficient is obtained by testing a test bearing, and the test bearing and the first bearing are made of the same material; and determining a first fatigue life of the first bearing under the first operating condition based on the first rolling life and the life coefficient. This improves the accuracy of bearing life determination.

Description

Technical Field

[0001] This application relates to the field of bearing technology, and in particular to a method, apparatus, device and storage medium for determining bearing life. Background Technology

[0002] Bearings are essential components in modern industry, serving as key transmission parts for main machines and widely used in fields such as automobiles, metallurgy, machine tools, and wind power.

[0003] Because bearings operate in harsh environments and under complex conditions, their failure can severely impact the overall performance of the main unit, even rendering the entire machine inoperable and causing significant losses. Therefore, it is crucial to ensure that bearing lifespan meets usage requirements during operation. However, the methods for determining bearing lifespan in related technologies are often inaccurate.

[0004] Therefore, there is an urgent need for a more accurate method for determining bearing life. Summary of the Invention

[0005] This application provides a method, apparatus, device, and storage medium for determining bearing life, thereby improving the accuracy of bearing life determination.

[0006] In a first aspect, this application provides a method for determining bearing life, comprising:

[0007] Determine the first operating condition corresponding to the first bearing;

[0008] The material for manufacturing the first bearing is determined, and the first bearing is prepared from the material.

[0009] Based on the first operating condition, determine the first rolling life of the prepared material;

[0010] The life coefficient between the first bearing and the prepared material is obtained, wherein the life coefficient is obtained by testing the test bearing and the prepared material of the test bearing and the first bearing are the same.

[0011] The first fatigue life of the first bearing under the first operating condition is determined based on the first rolling life and the life coefficient.

[0012] In one possible implementation, obtaining the life coefficient between the first bearing and the fabrication material includes:

[0013] Determine the second operating condition corresponding to the test bearing;

[0014] Under the second operating condition, determine the survival probability of the test bearing;

[0015] Based on the second working condition, the second rolling life of the prepared material and the second fatigue life of the test bearing are obtained by testing;

[0016] The life coefficient is determined based on the survival probability, the second rolling life, and the second fatigue life.

[0017] In one possible implementation, under the second operating condition, determining the survival probability of the test bearing includes:

[0018] Under the second operating condition, determine the first number of bearings among the multiple bearings that have reached the preset number of revolutions;

[0019] Based on the first quantity and the total number of the plurality of bearings, the survival probability of the test bearing is determined, wherein the test bearing is the bearing among the plurality of bearings that has reached a preset number of revolutions.

[0020] In one possible implementation, determining the life coefficient based on the survival probability, the second rolling life, and the second fatigue life includes:

[0021] Based on the survival probability, determine the relationship between the second rolling life and the second fatigue life;

[0022] Substituting the second rolling contact fatigue life and the second fatigue life into the relationship between the second rolling contact fatigue life and the second fatigue life, the life coefficient is obtained.

[0023] In one possible implementation, determining the relationship between the second rolling life and the second fatigue life based on the survival probability includes:

[0024] The first relationship between the survival probability and the second rolling lifetime is determined by equation (1):

[0025]

[0026] Where S is the survival probability, A1 is the first coefficient, L1 is the second rolling life, and when the bearing is a roller bearing, e = 9 / 8, and when the bearing is a ball bearing, e = 10 / 9;

[0027] The second relationship between the survival probability and the second fatigue life is determined by equation (2):

[0028]

[0029] Where S is the survival probability, A2 is the second coefficient, L2 is the second fatigue life, and when the bearing is a roller bearing, e = 9 / 8, and when the bearing is a ball bearing, e = 10 / 9;

[0030] Based on the first and second relationships, the relationship between the second rolling life and the second fatigue life is determined.

[0031] In one possible implementation, when the first bearing is a roller bearing, the first fatigue life satisfies the following formula:

[0032] L2 = KL1

[0033] Wherein, L2 is the first fatigue life, L1 is the first rolling life, and K is the life coefficient.

[0034] In one possible implementation, when the first bearing is a ball bearing, the first fatigue life satisfies the following formula:

[0035]

[0036] Wherein, L2 is the first fatigue life, L1 is the first rolling life, and K′ is the life coefficient.

[0037] Secondly, this application provides a bearing life determining device, comprising a first determining module, a second determining module, a third determining module, an acquisition module, and a fourth determining module, wherein,

[0038] The first determining module is used to determine the first operating condition corresponding to the first bearing;

[0039] The second determining module is used to determine the material used to manufacture the first bearing, wherein the first bearing is manufactured from the material used to manufacture the first bearing;

[0040] The third determining module is used to determine the first rolling life of the prepared material based on the first working condition;

[0041] The acquisition module is used to acquire the life coefficient between the first bearing and the preparation material, wherein the life coefficient is obtained by testing the test bearing and the test bearing and the first bearing are made of the same material.

[0042] The fourth determining module is used to determine the first fatigue life of the first bearing under the first operating condition based on the first rolling life and the life coefficient.

[0043] In one possible implementation, the acquisition module is specifically used for:

[0044] Determine the second operating condition corresponding to the test bearing;

[0045] Under the second operating condition, determine the survival probability of the test bearing;

[0046] Based on the second working condition, the second rolling life of the prepared material and the second fatigue life of the test bearing are obtained by testing;

[0047] The life coefficient is determined based on the survival probability, the second rolling life, and the second fatigue life.

[0048] In one possible implementation, the acquisition module is specifically used for:

[0049] Under the second operating condition, determine the first number of bearings among the multiple bearings that have reached the preset number of revolutions;

[0050] Based on the first quantity and the total number of the plurality of bearings, the survival probability of the test bearing is determined, wherein the test bearing is the bearing among the plurality of bearings that has reached a preset number of revolutions.

[0051] In one possible implementation, the acquisition module is specifically used for:

[0052] Based on the survival probability, determine the relationship between the second rolling life and the second fatigue life;

[0053] Substituting the second rolling contact fatigue life and the second fatigue life into the relationship between the second rolling contact fatigue life and the second fatigue life, the life coefficient is obtained.

[0054] In one possible implementation, the acquisition module is specifically used for:

[0055] The first relationship between the survival probability and the second rolling lifetime is determined by equation (1):

[0056]

[0057] Where S is the survival probability, A1 is the first coefficient, L1 is the second rolling life, and when the bearing is a roller bearing, e = 9 / 8, and when the bearing is a ball bearing, e = 10 / 9;

[0058] The second relationship between the survival probability and the second fatigue life is determined by equation (2):

[0059]

[0060] Where S is the survival probability, A2 is the second coefficient, L2 is the second fatigue life, and when the bearing is a roller bearing, e = 9 / 8, and when the bearing is a ball bearing, e = 10 / 9;

[0061] Based on the first and second relationships, the relationship between the second rolling life and the second fatigue life is determined.

[0062] In one possible implementation, when the first bearing is a roller bearing, the first fatigue life satisfies the following formula:

[0063] L2 = KL1

[0064] Wherein, L2 is the first fatigue life, L1 is the first rolling life, and K is the life coefficient.

[0065] In one possible implementation, when the first bearing is a ball bearing, the first fatigue life satisfies the following formula:

[0066]

[0067] Wherein, L2 is the first fatigue life, L1 is the first rolling life, and K′ is the life coefficient.

[0068] Thirdly, this application provides an electronic device, including: a processor and a memory;

[0069] The memory stores computer-executed instructions;

[0070] The processor executes computer execution instructions stored in the memory, causing the processor to perform the method described in any of the first aspects.

[0071] Fourthly, this application provides a computer-readable storage medium storing computer-executable instructions that, when executed by a processor, are used to implement the method described in any of the first aspects.

[0072] Fifthly, this application provides a computer program product, including a computer program that, when executed by a processor, implements the method described in any one of the first aspects.

[0073] This application provides a method, apparatus, device, and storage medium for determining bearing life. The method involves determining a first operating condition corresponding to a first bearing; determining the material used to manufacture the first bearing, wherein the first bearing is prepared from the material; determining a first rolling life of the material based on the first operating condition; obtaining a life coefficient between the first bearing and the material, wherein the life coefficient is obtained by testing a test bearing, and the test bearing and the first bearing are made of the same material; and determining a first fatigue life of the first bearing under the first operating condition based on the first rolling life and the life coefficient. By introducing performance indicators from the material stage to determine the bearing life, the accuracy of bearing life determination can be improved. Attached Figure Description

[0074] The accompanying drawings, which are incorporated in and form part of this specification, illustrate embodiments consistent with this application and, together with the description, serve to explain the principles of this application.

[0075] Figure 1 A flowchart illustrating a method for determining bearing life provided in an embodiment of this application;

[0076] Figure 2 A flowchart illustrating a method for obtaining a lifetime coefficient provided in an embodiment of this application;

[0077] Figure 3 A schematic diagram of a bearing life determination device provided in an embodiment of this application;

[0078] Figure 4 This is a schematic diagram of the structure of an electronic device provided in an embodiment of this application.

[0079] The accompanying drawings illustrate specific embodiments of this application, which will be described in more detail below. These drawings and descriptions are not intended to limit the scope of the concept in any way, but rather to illustrate the concept of this application to those skilled in the art through reference to particular embodiments. Detailed Implementation

[0080] To make the objectives, technical solutions, and advantages of the embodiments of this application clearer, the technical solutions in the embodiments of this application will be clearly and completely described below in conjunction with the embodiments of this application. Obviously, the described embodiments are only some embodiments of this application, not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0081] In the embodiments of this application, "at least one" means one or more. "More than one" means two or more.

[0082] The terms "first," "second," etc., appearing in the embodiments of this application are for illustrative purposes and to distinguish the objects being described. They do not indicate any order and do not imply any special limitation on the number of devices in the embodiments of this application, nor do they constitute any limitation on the embodiments of this application. For example, "first information" and "second information" are only used to distinguish different information and do not indicate any difference in the size, priority, or importance of these two pieces of information.

[0083] In the embodiments of this application, terms such as "exemplary," "in some embodiments," and "in other embodiments" are used to indicate that something is an example, illustration, or description. Any embodiment or design that is described as "exemplary" in the embodiments of this application should not be construed as being more preferred or advantageous than other embodiments or designs. Specifically, the use of the term "exemplary" is intended to present the concept in a concrete manner.

[0084] The application scenario of this application can be to estimate the lifespan of bearings in mainframes of modern industrial equipment. It should be noted that the bearing lifespan determination method provided in this application can be applied not only to bearings in mainframes of modern industrial equipment, but also to other bearings; the bearing lifespan determination method provided in this application includes, but is not limited to, the above-mentioned application scenarios.

[0085] Because bearings operate in harsh environments and under complex conditions, their failure can severely impact the overall performance of the main unit and even render the entire machine inoperable, resulting in significant losses. Therefore, it is crucial to ensure that bearing lifespan meets usage requirements during operation, which necessitates accurate prediction of bearing lifespan.

[0086] In related technologies, the bearing industry typically calculates bearing life by referring to standards such as ISO 281 during the design phase. This method has certain limitations: on the one hand, it is difficult to accurately grasp the influence of material properties on the bearing life calculation results during the calculation process, which leads to certain errors in the bearing life calculation results; on the other hand, it is difficult to predict the service performance of the bearing at the material stage.

[0087] To address the aforementioned technical problems, this application provides a method for determining bearing life. The method determines the bearing fatigue life by considering the rolling life of the material used to manufacture the bearing and the life coefficient between the bearing and the material. By fully considering the influence of the material on the bearing during the fatigue life determination process, the accuracy of bearing life determination is improved. Furthermore, unqualified materials can be promptly eliminated based on the determined bearing life, enabling overall control of bearing performance from the source of the material.

[0088] The bearing life determination method provided in this application aims to solve the above-mentioned technical problems in the prior art.

[0089] The technical solution of this application and how the technical solution of this application solves the above-mentioned technical problems are described in detail below with specific embodiments. These specific embodiments can be combined with each other, and the same or similar concepts or processes may not be described again in some embodiments. The embodiments of this application will now be described with reference to the accompanying drawings.

[0090] Figure 1 This is a flowchart illustrating a method for determining bearing life provided in an embodiment of this application. Please refer to [link / reference]. Figure 1The method includes:

[0091] S101. Determine the first operating condition corresponding to the first bearing.

[0092] The execution subject of this application embodiment can be an electronic device such as a testing device or a computing device, or it can be a bearing life determination device installed in an electronic device. The bearing life determination device can be implemented by software or by a combination of software and hardware.

[0093] The first operating condition can refer to the working state of the first bearing under a specific load.

[0094] The specific load can be equivalent to the load borne by the first bearing in actual use, or it can be the estimated load borne by the first bearing in use.

[0095] The first bearing can be a rolling bearing.

[0096] Rolling bearings can be classified into ball bearings and roller bearings according to the shape of the rolling elements; roller bearings can also be classified into cylindrical roller bearings, needle roller bearings, tapered roller bearings, and self-aligning roller bearings according to the type of rollers.

[0097] S102. Determine the materials used to manufacture the first bearing.

[0098] The first bearing is prepared from the material.

[0099] The materials to be prepared can refer to materials with certain load-bearing capacity, embeddability, thermal conductivity, low coefficient of friction, smooth surface, wear resistance, fatigue resistance and corrosion resistance.

[0100] For example, the materials used in the preparation can be bearing steel, carburized bearing steel, stainless bearing steel, high-temperature bearing steel, medium-carbon impact-resistant bearing steel, synthetic ceramics, etc.

[0101] In one possible implementation, the first bearing can be a bearing that has already been prepared from the material, or it can be a projected bearing that is planned to be prepared from the material but has not yet been actually prepared.

[0102] S103. Determine the first rolling life of the prepared material based on the first working condition.

[0103] The first rolling life can refer to the rolling contact fatigue life of the prepared material.

[0104] The first rolling life can be obtained through rolling contact fatigue testing.

[0105] The first rolling life can also refer to the number of revolutions or hours that a bearing undergoes before pitting occurs under a certain load.

[0106] S104. Obtain the life coefficient between the first bearing and the preparation material.

[0107] The life factor is obtained by testing the bearing.

[0108] The test bearing and the first bearing were made of the same materials.

[0109] The life factor can be used to indicate the relationship between the fatigue life of the first bearing and the rolling contact fatigue life of the material used to make it.

[0110] S105. Determine the first fatigue life of the first bearing under the first operating condition based on the first rolling life and the life coefficient.

[0111] In one possible implementation, when the first bearing is a roller bearing, the first fatigue life satisfies the following formula:

[0112] L2 = KL1

[0113] Where L2 is the first fatigue life, L1 is the first rolling life, and K is the life coefficient.

[0114] In one possible implementation, when the first bearing is a ball bearing, the first fatigue life satisfies the following formula:

[0115]

[0116] Where L2 is the first fatigue life, L1 is the first rolling life, and K′ is the life coefficient.

[0117] In one possible implementation, when the first rolling life and life coefficient are obtained, the first rolling life and life coefficient can be substituted into the corresponding formula above according to the type of the first bearing to calculate the first fatigue life.

[0118] The first fatigue life can refer to the number of revolutions or hours that a bearing undergoes before pitting occurs under a certain load.

[0119] In the above formula, the units for fatigue life and rolling life are the same.

[0120] For example, if the unit of rolling life is revolutions, then the unit of fatigue life is also revolutions; if the unit of rolling life is hours, then the unit of fatigue life is also hours.

[0121] For example, for a roller bearing, if K = 1.47, the first rolling life is 6.87 × 10⁻⁶. 6 If the first fatigue life is calculated using the formula L2 = KL1, then according to the formula above, the first fatigue life can be calculated as 1.01 × 10⁻⁶. 7 change.

[0122] exist Figure 1 In the illustrated embodiment, a first operating condition corresponding to the first bearing is determined; the material used to manufacture the first bearing is determined, and the first bearing is prepared from the material; based on the first operating condition, a first rolling life of the material is determined; a life coefficient between the first bearing and the material is obtained, which is obtained by testing a test bearing, and the test bearing and the first bearing are made of the same material; based on the first rolling life and the life coefficient, a first fatigue life of the first bearing under the first operating condition is determined. By fully considering the influence of the material on the bearing during the determination of bearing fatigue life, the accuracy of bearing life determination is improved. Furthermore, unqualified materials can be promptly eliminated based on the determined bearing life, allowing for overall control of bearing performance from the source of the material.

[0123] exist Figure 1 Based on the illustrated embodiment, the following, in conjunction with Figure 2 Explain in detail how to obtain the lifespan factor.

[0124] Figure 2 This is a flowchart illustrating a method for obtaining a lifetime coefficient according to an embodiment of this application. Please refer to... Figure 2 The method includes:

[0125] S201. Determine the second operating condition corresponding to the test bearing.

[0126] The test bearing can be a bearing that has already been prepared from the material, or a predicted bearing that is planned to be prepared from the material but has not yet been actually prepared.

[0127] The second operating condition can refer to the working state of the test bearing under a specific load.

[0128] The specific load can be equivalent to the load that the test bearing experiences in actual use, or it can be the estimated load that the test bearing experiences in use.

[0129] The second working condition can be the same as the first working condition, or it can be different from the first working condition.

[0130] S202. Under the second operating condition, determine the survival probability of the test bearing.

[0131] In one possible implementation, the survival probability of the test bearing can be determined in the following way:

[0132] In the second operating condition, determine the first number of bearings that reach the preset speed among multiple bearings;

[0133] Based on the first quantity and the total number of multiple bearings, the survival probability of the test bearing is determined. The test bearing is the bearing that reaches the preset number of revolutions among the multiple bearings.

[0134] For example, if 100 bearings are tested under the second operating condition, and 12 of them fail due to fatigue after running a preset number of revolutions, then the survival probability of the remaining 88 bearings is 88%.

[0135] S203. Based on the second working condition, the second rolling life of the prepared material and the second fatigue life of the bearing are tested.

[0136] The second rolling life can refer to the rolling contact fatigue life of the prepared material obtained by testing under the second working condition.

[0137] The second rolling life of the prepared material can be obtained by rolling contact fatigue testing.

[0138] In one possible implementation, the second fatigue life of the test bearing can be obtained through theoretical calculation.

[0139] S204. Determine the life coefficient based on the survival probability, the second rolling life, and the second fatigue life.

[0140] In one possible implementation, the life coefficient can be determined based on the survival probability, the second rolling life, and the second fatigue life in the following way:

[0141] Based on the survival probability, determine the relationship between the second rolling life and the second fatigue life;

[0142] Substituting the second rolling contact fatigue life and the second fatigue life into the relationship between the second rolling contact fatigue life and the second fatigue life, the life coefficient is obtained.

[0143] In one possible implementation, the relationship between the second rolling life and the second fatigue life can be determined based on the survival probability in the following way:

[0144] The first relationship between the survival probability and the second rolling lifetime is given by equation (1):

[0145]

[0146] Where S is the survival probability; A1 is the first coefficient; L1 is the second rolling life; when the bearing is a roller bearing, e = 9 / 8; when the bearing is a ball bearing, e = 10 / 9;

[0147] The second relationship between the survival probability and the second fatigue life is determined by equation (2):

[0148]

[0149] Where S is the survival probability; A2 is the second coefficient; L2 is the second fatigue life; when the bearing is a roller bearing, e = 9 / 8; when the bearing is a ball bearing, e = 10 / 9;

[0150] Based on the first and second relationships, the relationship between the second rolling life and the second fatigue life is determined.

[0151] For example, based on the Lundberg-Palmgren theory, for a given bearing under a specific load, the survival probability S and the bearing life L under the survival probability S have the following relationship:

[0152]

[0153] Where A is a constant that can be obtained through experiments; when the given bearing is a roller bearing, e = 9 / 8; when the given bearing is a ball bearing, e = 10 / 9.

[0154] If the rolling contact fatigue test process of the material is regarded as the fatigue test of a given bearing under a specific load, then the rolling contact fatigue life and the survival probability of the material satisfy the relationship shown in Equation (1).

[0155] Similarly, for a bearing operating under a specific load, the bearing's fatigue life and survival probability satisfy the relationship shown in equation (2).

[0156] If the survival probability S of the material rolling contact fatigue test and the bearing operation is set to be equal, for example, if S is both taken as 90%, then the relationship between the second rolling life and the second fatigue life can be derived according to the relationship (1) and the relationship (2).

[0157] When the test bearing is a roller bearing, the relationship between the second rolling life and the second fatigue life is as follows:

[0158] L′2=KL′1

[0159] Where L′2 is the second fatigue life, L′1 is the second rolling life, and K is the life coefficient.

[0160] When the test bearing is a ball bearing, the relationship between the second rolling life and the second fatigue life is as follows:

[0161]

[0162] Where L′2 is the second fatigue life, L′1 is the second rolling life, and K′ is the life coefficient.

[0163] Under the same survival probability, by obtaining the second rolling life and the second fatigue life respectively, the corresponding life coefficient K or K′ can be determined to establish the relationship between the second rolling life and the second fatigue life.

[0164] exist Figure 2In the illustrated embodiment, a second operating condition corresponding to the test bearing is determined; under the second operating condition, the survival probability of the test bearing is determined; based on the second operating condition, the second rolling life of the prepared material and the second fatigue life of the test bearing are tested and obtained; based on the survival probability, the second rolling life, and the second fatigue life, a life coefficient is determined. By accurately determining the life coefficient, an accurate relationship between the rolling life of the material and the fatigue life of the bearing can be established, and subsequently, the fatigue life of the bearing can be accurately determined using the relationship between the rolling life of the material and the fatigue life of the bearing.

[0165] To facilitate understanding, detailed examples are provided below to illustrate the technical solution of this application.

[0166] Example 1

[0167] The bearing is a radial cylindrical roller bearing with a roller pitch circle diameter d. m =65mm, roller diameter D=10mm, roller length L=9.6mm, number of rollers Z=14, bearing withstands radial load 4.45kN.

[0168] First, under the same survival probability S = 90%, the material contact fatigue life was obtained as 6.7 × 10⁻⁶ through rolling contact fatigue testing. 6 Theoretical calculations yielded a bearing fatigue life of 9.85 × 10⁻⁶. 6 Then, the life coefficient K was determined to be 1.47, and the relationship between the rolling contact fatigue life of the material and the fatigue life of the bearing was established as L2 = 1.47L1.

[0169] After optimizing the raw materials, rolling contact fatigue tests were conducted again, and the rolling contact fatigue life of the material was found to be 6.87 × 10⁻⁶. 6 Substituting this into L2 = 1.47L1, we obtain the bearing life as 1.01 × 10⁻⁶. 7 change.

[0170] Finally, the results of actual application of the bearing showed that the bearing fatigue life was 1.02 × 10⁻⁶. 7 The bearing fatigue life determined by the method in the embodiments of this application is close to that determined by the method in the embodiments of this application, proving that the fatigue life of the bearing determined by the embodiments of this application is highly accurate.

[0171] Figure 3 This is a schematic diagram of a bearing life determination device provided in an embodiment of this application. Please refer to... Figure 3 The bearing life determining device 10 includes a first determining module 11, a second determining module 12, a third determining module 13, an acquisition module 14, and a fourth determining module 15, wherein...

[0172] The first determining module 11 is used to determine the first operating condition corresponding to the first bearing;

[0173] The second determining module 12 is used to determine the material used to prepare the first bearing, which is prepared from the material.

[0174] The third determining module 13 is used to determine the first rolling life of the prepared material based on the first working condition;

[0175] The acquisition module 14 is used to acquire the life coefficient between the first bearing and the preparation material. The life coefficient is obtained by testing the test bearing. The test bearing and the first bearing are made of the same material.

[0176] The fourth determining module 15 is used to determine the first fatigue life of the first bearing under the first operating condition based on the first rolling life and the life coefficient.

[0177] In one possible implementation, the acquisition module 14 is specifically used for:

[0178] Determine the second operating condition corresponding to the test bearing;

[0179] Under the second operating condition, determine the survival probability of the test bearing;

[0180] Based on the second operating condition, the second rolling life of the prepared material and the second fatigue life of the bearing were tested.

[0181] The life coefficient is determined based on the survival probability, the second rolling life, and the second fatigue life.

[0182] In one possible implementation, the acquisition module 14 is specifically used for:

[0183] In the second operating condition, determine the first number of bearings that reach the preset speed among multiple bearings;

[0184] Based on the first quantity and the total number of multiple bearings, the survival probability of the test bearing is determined. The test bearing is the bearing that reaches the preset number of revolutions among the multiple bearings.

[0185] In one possible implementation, the acquisition module 14 is specifically used for:

[0186] Based on the survival probability, determine the relationship between the second rolling life and the second fatigue life;

[0187] Substituting the second rolling contact fatigue life and the second fatigue life into the relationship between the second rolling contact fatigue life and the second fatigue life, the life coefficient is obtained.

[0188] In one possible implementation, the acquisition module 14 is specifically used for:

[0189] The first relationship between the survival probability and the second rolling lifetime is given by equation (1):

[0190]

[0191] Where S is the survival probability, A1 is the first coefficient, L1 is the second rolling life, and when the bearing is a roller bearing, e = 9 / 8, and when the bearing is a ball bearing, e = 10 / 9;

[0192] The second relationship between the survival probability and the second fatigue life is determined by equation (2):

[0193]

[0194] Where S is the survival probability, A2 is the second coefficient, L2 is the second fatigue life, and when the bearing is a roller bearing, e = 9 / 8, and when the bearing is a ball bearing, e = 10 / 9;

[0195] Based on the first and second relationships, the relationship between the second rolling life and the second fatigue life is determined.

[0196] In one possible implementation, when the first bearing is a roller bearing, the first fatigue life satisfies the following formula:

[0197] L2 = KL1

[0198] Where L2 is the first fatigue life, L1 is the first rolling life, and K is the life coefficient.

[0199] In one possible implementation, when the first bearing is a ball bearing, the first fatigue life satisfies the following formula:

[0200]

[0201] Where L2 is the first fatigue life, L1 is the first rolling life, and K′ is the life coefficient.

[0202] The bearing life determination device 10 provided in this application can execute the technical solution shown in the above-described bearing life determination method embodiment. Its implementation principle and beneficial effects are similar, and will not be described again here.

[0203] Figure 4 This is a schematic diagram of the structure of an electronic device provided in an embodiment of this application. Please refer to... Figure 4 The electronic device 20 includes a memory 21 and a processor 22. Exemplarily, the memory 21 and the processor 22 are interconnected via a bus 23.

[0204] Memory 21 stores instructions executed by the computer;

[0205] The processor 22 executes the computer execution instructions stored in the memory 21, causing the processor 22 to execute any of the above-mentioned methods for determining the bearing life.

[0206] Figure 4 The electronic device shown in the embodiment can execute the technical solution shown in the above-described method for determining bearing life. Its implementation principle and beneficial effects are similar, and will not be repeated here.

[0207] This application also provides a computer-readable storage medium storing computer-executable instructions, which, when executed by a processor, are used to implement the method for determining the bearing life as described above.

[0208] This application also provides a computer program product, including a computer program that, when executed by a processor, can implement the above-described method for determining bearing life.

[0209] Other embodiments of this application will readily occur to those skilled in the art upon consideration of the specification and practice of the invention disclosed herein. This application is intended to cover any variations, uses, or adaptations of this application that follow the general principles of this application and include common knowledge or customary techniques in the art not disclosed herein. The specification and examples are to be considered exemplary only, and the true scope and spirit of this application are indicated by the following claims.

[0210] It should be understood that this application is not limited to the precise structure described above and shown in the accompanying drawings, and various modifications and changes can be made without departing from its scope. The scope of this application is limited only by the appended claims.

Claims

1. A method for determining bearing life, characterized in that, include: Determine the first operating condition corresponding to the first bearing; The material for manufacturing the first bearing is determined, and the first bearing is prepared from the material. Based on the first operating condition, determine the first rolling life of the prepared material; The life coefficient between the first bearing and the prepared material is obtained, wherein the life coefficient is obtained by testing the test bearing and the prepared material of the test bearing and the first bearing are the same. The first fatigue life of the first bearing under the first operating condition is determined based on the first rolling life and the life coefficient.

2. The method according to claim 1, characterized in that, Obtaining the lifetime coefficient between the first bearing and the prepared material includes: Determine the second operating condition corresponding to the test bearing; Under the second operating condition, determine the survival probability of the test bearing; Based on the second working condition, the second rolling life of the prepared material and the second fatigue life of the test bearing are obtained by testing; The life coefficient is determined based on the survival probability, the second rolling life, and the second fatigue life.

3. The method according to claim 2, characterized in that, Under the second operating condition, determining the survival probability of the test bearing includes: Under the second operating condition, determine the first number of bearings among the multiple bearings that have reached the preset number of revolutions; Based on the first quantity and the total number of the plurality of bearings, the survival probability of the test bearing is determined, wherein the test bearing is the bearing among the plurality of bearings that has reached a preset number of revolutions.

4. The method according to claim 2 or 3, characterized in that, Determining the life coefficient based on the survival probability, the second rolling life, and the second fatigue life includes: Based on the survival probability, determine the relationship between the second rolling life and the second fatigue life; Substituting the second rolling life and the second fatigue life into the relationship between the second rolling life and the second fatigue life, the life coefficient is obtained.

5. The method according to claim 4, characterized in that, Based on the survival probability, the relationship between the second rolling life and the second fatigue life is determined, including: The first relationship between the survival probability and the second rolling lifetime is determined by equation (1): Equation (1) Where S is the survival probability; The first coefficient; The second rolling life; when the bearing is a roller bearing, When the bearing is a ball bearing, ; The second relationship between the survival probability and the second fatigue life is determined by equation (2): Equation (2) Where S is the survival probability; The second coefficient; The second fatigue life; when the bearing is a roller bearing. When the bearing is a ball bearing, ; Based on the first and second relationships, the relationship between the second rolling life and the second fatigue life is determined.

6. The method according to any one of claims 1-3, characterized in that, When the first bearing is a roller bearing, the first fatigue life satisfies the following formula: in, This is the first fatigue life. For the first rolling life, The lifetime coefficient is mentioned.

7. The method according to any one of claims 1-3, characterized in that, When the first bearing is a ball bearing, the first fatigue life satisfies the following formula: in, This is the first fatigue life. For the first rolling life, The lifetime coefficient is mentioned.

8. A device for determining bearing life, characterized in that, It includes a first determining module, a second determining module, a third determining module, an acquisition module, and a fourth determining module, wherein, The first determining module is used to determine the first operating condition corresponding to the first bearing; The second determining module is used to determine the material used to manufacture the first bearing, wherein the first bearing is manufactured from the material used to manufacture the first bearing; The third determining module is used to determine the first rolling life of the prepared material based on the first working condition; The acquisition module is used to acquire the life coefficient between the first bearing and the preparation material, wherein the life coefficient is obtained by testing the test bearing and the test bearing and the first bearing are made of the same material. The fourth determining module is used to determine the first fatigue life of the first bearing under the first operating condition based on the first rolling life and the life coefficient.

9. An electronic device, characterized in that, include: Processor, memory; The memory stores computer-executed instructions; The processor executes computer execution instructions stored in the memory, causing the processor to perform the method as described in any one of claims 1-7.

10. A computer-readable storage medium, characterized in that, The computer-readable storage medium stores computer-executable instructions that, when executed by a processor, are used to implement the method described in any one of claims 1-7.

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