Detection method and system based on bearing temperature test under different working conditions and medium

Abstract

The application provides a detection method and system based on bearing temperature tests under different working conditions and a medium. The method comprises the following steps: obtaining parameter information of a bearing to be detected; determining first contact area information according to first quality information, third quality information and first instantaneous temperature information, and determining second contact area information; determining first detection characteristic information according to the first instantaneous temperature information and the first contact area information, and determining second detection characteristic information according to second instantaneous temperature information and the second contact area information. The application fully considers the influence of the important factor of the contact area between each component part in the rolling bearing on the heat transfer relationship, truly simulates the measurement of the bearing temperature under different loading working conditions, realizes the accurate calculation of the contact heat transfer coefficients of each contact part of the bearing, and has the advantages of good stability, high accuracy, strong adaptability, high safety factor, small noise and the like, and greatly improves the reliability of the detection result.

Description

Technical Field

[0001] This application relates to the technical field of bearing testing, and more specifically, to a testing method, system, and medium based on bearing temperature tests under different operating conditions. Background Technology

[0002] Bearings are one of the key components in rotating machinery, and their performance directly affects the performance and service life of the main body of the machinery. One type of bearing is the rolling bearing. After the mass production of rolling bearings is completed, a number of rolling bearings are usually randomly selected for temperature testing.

[0003] Currently, existing rolling bearing temperature tests typically use the radiation method to estimate the contact heat transfer coefficients of each component in the rolling bearing, and then estimate the heat transfer relationship of each component by using the magnitude of these contact heat transfer coefficients. However, this method lacks consideration of the important influencing factor of the contact area between the components in the rolling bearing, which is not conducive to the testers' more accurate analysis of the heat transfer relationship between the components in the rolling bearing. This results in a low reliability of the test results and needs further improvement. Summary of the Invention

[0004] Based on this, the embodiments of this application provide a detection method, system and medium based on bearing temperature test under different operating conditions, so as to solve the problem of low reliability of detection results in the prior art.

[0005] In a first aspect, embodiments of this application provide a testing method based on bearing temperature tests under different operating conditions, applicable to bearings to be tested, wherein the bearing to be tested includes an outer bearing ring, an inner bearing ring, and rollers, and the method includes:

[0006] The parameter information of the bearing to be tested is obtained, wherein the parameter information includes the first mass information of the bearing outer ring, the second mass information of the bearing inner ring and the third mass information of the roller, the first instantaneous temperature information of the bearing outer ring, the first recording time information corresponding to the first instantaneous temperature information, the second instantaneous temperature information of the bearing inner ring and the second recording time information corresponding to the second instantaneous temperature information, wherein the first instantaneous temperature information is used to describe the first instantaneous temperature corresponding to the first contact point between the bearing outer ring and the roller, and the second instantaneous temperature information is used to describe the second instantaneous temperature corresponding to the second contact point between the bearing inner ring and the roller;

[0007] Based on the first mass information, the third mass information, and the first instantaneous temperature information, the first contact area information of the bearing to be tested is determined, and based on the second mass information, the third mass information, and the second instantaneous temperature information, the second contact area information of the bearing to be tested is determined, wherein the first contact area information is used to describe the first contact area between the outer ring of the bearing and the roller, and the second contact area information is used to describe the second contact area between the inner ring of the bearing and the roller;

[0008] Based on the first instantaneous temperature information, the first recording time information, and the first contact area information, the first detection feature information of the bearing to be tested is determined, and based on the second instantaneous temperature information, the second recording time information, and the second contact area information, the second detection feature information of the bearing to be tested is determined. The first detection feature information is used to describe the first heat transfer relationship between the outer ring of the bearing and the roller, and the second detection feature information is used to describe the second heat transfer relationship between the inner ring of the bearing and the roller.

[0009] The beneficial effects compared with the prior art are as follows: The detection method based on bearing temperature test under different working conditions provided in this application embodiment allows the terminal device to first acquire the parameter information of the bearing to be tested, and then determine the first contact area information based on the first mass information, the third mass information, and the first instantaneous temperature information in the parameter information. Furthermore, it determines the second contact area information based on the second mass information, the third mass information, and the second instantaneous temperature information in the parameter information. Then, it determines the first detection feature information based on the first instantaneous temperature information, the first recording time information, and the first contact area information in the parameter information. Finally, it determines the second detection feature information based on the second instantaneous temperature information, the second recording time information, and the second contact area information in the parameter information. This allows for the determination of the heat transfer relationship between various components in the rolling bearing (such as between the outer ring and the roller, and between the inner ring and the roller) by combining the important influencing factor of contact area, significantly improving the reliability of the detection results.

[0010] Secondly, embodiments of this application provide a testing system based on bearing temperature tests under different operating conditions, applicable to bearings under test. The bearing under test includes an outer bearing ring, an inner bearing ring, and rollers. The system includes:

[0011] Parameter information acquisition module: used to acquire parameter information of the bearing to be tested, wherein the parameter information includes first mass information of the bearing outer ring, second mass information of the bearing inner ring and third mass information of the roller, first instantaneous temperature information of the bearing outer ring, first recording time information corresponding to the first instantaneous temperature information, second instantaneous temperature information of the bearing inner ring and second recording time information corresponding to the second instantaneous temperature information, wherein the first instantaneous temperature information is used to describe the first instantaneous temperature corresponding to the first contact point between the bearing outer ring and the roller, and the second instantaneous temperature information is used to describe the second instantaneous temperature corresponding to the second contact point between the bearing inner ring and the roller;

[0012] The contact area information determination module is used to determine the first contact area information of the bearing to be tested based on the first mass information, the third mass information, and the first instantaneous temperature information, and to determine the second contact area information of the bearing to be tested based on the second mass information, the third mass information, and the second instantaneous temperature information, wherein the first contact area information is used to describe the first contact area between the outer ring of the bearing and the roller, and the second contact area information is used to describe the second contact area between the inner ring of the bearing and the roller;

[0013] The detection feature information determination module is used to determine the first detection feature information of the bearing to be tested based on the first instantaneous temperature information, the first recording time information, and the first contact area information, and to determine the second detection feature information of the bearing to be tested based on the second instantaneous temperature information, the second recording time information, and the second contact area information. The first detection feature information is used to describe the first heat transfer relationship between the outer ring of the bearing and the roller, and the second detection feature information is used to describe the second heat transfer relationship between the inner ring of the bearing and the roller.

[0014] Thirdly, embodiments of this application provide a terminal device, including a memory, a processor, and a computer program stored in the memory and executable on the processor, wherein the processor executes the computer program to implement the steps of the method described in the first aspect above.

[0015] Fourthly, embodiments of this application provide a computer-readable storage medium storing a computer program that, when executed by a processor, implements the steps of the method described in the first aspect above.

[0016] It is understood that the beneficial effects of the second to fourth aspects mentioned above can be found in the relevant descriptions in the first aspect mentioned above, and will not be repeated here. Attached Figure Description

[0017] To more clearly illustrate the technical solutions in the embodiments of this application, the accompanying drawings used in the description of the embodiments or the prior art will be briefly introduced below.

[0018] Figure 1 This is a schematic flowchart of a detection method provided in an embodiment of this application;

[0019] Figure 2 This is a schematic diagram of the bearing temperature testing device provided in one embodiment of this application;

[0020] Figure 3 This is a schematic diagram of the structure of the bearing to be tested according to an embodiment of this application;

[0021] Figure 4 This is a flowchart illustrating step S200 in a detection method provided in an embodiment of this application;

[0022] Figure 5 This is a flowchart illustrating step S300 in a detection method provided in an embodiment of this application;

[0023] Figure 6 This is a flowchart illustrating the process after step S300 in a detection method provided in an embodiment of this application;

[0024] Figure 7 This is a flowchart illustrating the process after step S460 in a detection method provided in an embodiment of this application;

[0025] Figure 8 This is a block diagram of a detection system provided in one embodiment of this application;

[0026] Figure 9 This is a schematic diagram of a terminal device provided in an embodiment of this application. Detailed Implementation

[0027] In the following description, specific details such as particular system architectures and techniques are set forth for illustrative purposes and not for limitation, in order to provide a thorough understanding of the embodiments of this application. However, those skilled in the art will understand that this application may also be implemented in other embodiments without these specific details. In other instances, detailed descriptions of well-known systems, apparatuses, circuits, and methods have been omitted so as not to obscure the description of this application with unnecessary detail.

[0028] In the description of this application and the appended claims, the terms "first," "second," "third," etc., are used only to distinguish descriptions and should not be construed as indicating or implying relative importance.

[0029] References to "one embodiment" or "some embodiments" as described in this specification mean that one or more embodiments of this application include a specific feature, structure, or characteristic described in connection with that embodiment. Therefore, the phrases "in one embodiment," "in some embodiments," "in other embodiments," "in still other embodiments," etc., appearing in different parts of this specification do not necessarily refer to the same embodiment, but rather mean "one or more, but not all, embodiments," unless otherwise specifically emphasized. The terms "comprising," "including," "having," and variations thereof mean "including but not limited to," unless otherwise specifically emphasized.

[0030] To illustrate the technical solution described in this application, specific embodiments are provided below.

[0031] Please see Figure 1 , Figure 1 This is a flowchart illustrating the bearing temperature testing method under different operating conditions provided in this application embodiment. In this embodiment, the execution subject of the testing method is a terminal device. It is understood that the types of terminal devices include, but are not limited to, mobile phones, tablets, laptops, Ultra-Mobile Personal Computers (UMPCs), netbooks, Personal Digital Assistants (PDAs), etc. This application embodiment does not impose any restrictions on the specific type of terminal device.

[0032] Please see Figure 1 The detection method provided in this application includes, but is not limited to, the following steps:

[0033] In S100, obtain the parameter information of the bearing to be tested.

[0034] For example, please refer to Figure 2 and Figure 3 The testing personnel can use a bearing temperature testing device to conduct bearing temperature tests on the bearing under test. This device includes a base, on which two bearing housings supporting bearings are mounted. Each bearing housing holds a supporting bearing, and the two supporting bearings are tightly connected by a spindle. At the end of the spindle is the bearing housing of the bearing under test, in which the bearing under test is installed. The bearing under test and the two supporting bearings form a cantilever structure. The base also includes an axial loading assembly for applying axial load to the bearing under test and a radial loading assembly for applying radial load to the bearing under test. This testing method is applicable to the bearing under test, which includes an outer bearing ring, an inner bearing ring, and rollers.

[0035] Specifically, the terminal device can first acquire the parameter information of the bearing to be tested. The parameter information includes the first mass information of the bearing outer ring, the second mass information of the bearing inner ring and the third mass information of the roller, the first instantaneous temperature information of the bearing outer ring, the first recording time information corresponding to the first instantaneous temperature information, the second instantaneous temperature information of the bearing inner ring and the second recording time information corresponding to the second instantaneous temperature information. Among them, the first mass information is used to describe the mass of the bearing outer ring, the second mass information is used to describe the mass of the bearing inner ring, the third mass information is used to describe the mass of the roller, the first instantaneous temperature information is used to describe the first instantaneous temperature corresponding to the first contact point between the bearing outer ring and the roller, the first recording time information is used to describe the recording time of the first instantaneous temperature information, the second instantaneous temperature information is used to describe the second instantaneous temperature corresponding to the second contact point between the bearing inner ring and the roller, and the second recording time information is used to describe the recording time of the second instantaneous temperature information.

[0036] Without loss of generality, please refer to Figure 2 and Figure 3 The bearing housing of the bearing to be tested can be pre-drilled with several holes. A probe-type temperature sensor can be pre-installed on the bearing housing of the bearing to be tested. The probe-type temperature sensor is used to detect the first instantaneous temperature corresponding to the first contact point between the outer ring and the roller of the bearing. A thermocouple temperature measuring wire can be pre-installed on the bearing housing of the bearing to be tested. The thermocouple temperature measuring wire is used to detect the second instantaneous temperature corresponding to the second contact point between the inner ring and the roller of the bearing. In order to further improve the accuracy of the test results, a miniature heating rod can be pre-installed at the center of the spindle. The miniature heating rod can serve as a heat source to uniformly provide heat to the bearing to be tested. At the same time, the first contact point and the second contact point can be located on the same vertical line, which is conducive to realistically simulating the bearing under different working conditions.

[0037] In S200, the first contact area information of the bearing to be tested is determined based on the first mass information, the third mass information, and the first instantaneous temperature information, and the second contact area information of the bearing to be tested is determined based on the second mass information, the third mass information, and the second instantaneous temperature information.

[0038] Without loss of generality, after the axial loading assembly applies an axial load to the bearing under test and the radial loading assembly applies a radial load to the bearing under test, a load-bearing area and a non-load-bearing area will be formed inside the bearing. This results in different contact loads on each roller, different contact areas between each roller and the outer ring of the bearing, and different contact areas between each roller and the inner ring of the bearing. Therefore, it is necessary to consider the important influencing factor of contact area when analyzing the heat transfer relationship between the various components.

[0039] Specifically, after the terminal device acquires the parameter information, it can first determine the first contact area information of the bearing to be tested based on the first mass information, the third mass information, and the first instantaneous temperature information. At the same time, the terminal device can determine the second contact area information of the bearing to be tested based on the second mass information, the third mass information, and the second instantaneous temperature information. The first contact area information is used to describe the first contact area between the outer ring and the roller of the bearing, and the second contact area information is used to describe the second contact area between the inner ring and the roller of the bearing.

[0040] In some possible implementations, in order to facilitate a more accurate analysis of the heat transfer relationship between the various components and improve the reliability of the detection results, the method may include, but is not limited to, the following steps before step S200:

[0041] In S201, the first elastic modulus information of the bearing outer ring, the first Poisson's ratio information of the bearing outer ring, the second elastic modulus information of the bearing inner ring, the second Poisson's ratio information of the bearing inner ring, the third elastic modulus information and the third Poisson's ratio information of the roller, the first principal curvature information and the second principal curvature information of the bearing to be tested are obtained.

[0042] Specifically, the terminal device can first acquire the first elastic modulus information of the bearing outer ring, the first Poisson's ratio information of the bearing outer ring, the second elastic modulus information of the bearing inner ring, the third elastic modulus information of the roller and the third Poisson's ratio information of the roller, the first principal curvature information of the bearing to be tested, and the second principal curvature information of the bearing to be tested. Among them, the first elastic modulus information is used to describe the elastic modulus of the bearing outer ring, the first Poisson's ratio information is used to describe the Poisson's ratio of the bearing outer ring, the second elastic modulus information is used to describe the elastic modulus of the bearing inner ring, the third elastic modulus information is used to describe the elastic modulus of the roller, the third Poisson's ratio information is used to describe the Poisson's ratio of the roller, the first principal curvature information is used to describe the sum of the first principal curvatures corresponding to the first contact point between the bearing outer ring and the roller, and the second principal curvature information is used to describe the sum of the second principal curvatures corresponding to the second contact point between the bearing inner ring and the roller.

[0043] Accordingly, please refer to Figure 4 Step S200 includes, but is not limited to, the following steps:

[0044] In S210, the first Hertz contact characteristic value of the bearing to be tested is determined based on the first elastic modulus information, the third elastic modulus information, the first Poisson's ratio information, the third Poisson's ratio information and the preset Hertz contact characteristic value calculation formula, and the second Hertz contact characteristic value of the bearing to be tested is determined based on the second elastic modulus information, the third elastic modulus information, the second Poisson's ratio information, the third Poisson's ratio information and the preset Hertz contact characteristic value calculation formula.

[0045] Specifically, the terminal device can input the first elastic modulus information, the third elastic modulus information, the first Poisson's ratio information, and the third Poisson's ratio information into the preset Hertz contact characteristic value calculation formula to determine the first Hertz contact characteristic value of the bearing to be tested. At the same time, the terminal device can input the second elastic modulus information, the third elastic modulus information, the second Poisson's ratio information, and the third Poisson's ratio information into the Hertz contact characteristic value calculation formula to determine the second Hertz contact characteristic value of the bearing to be tested.

[0046] In some possible implementations, the above formula for calculating the Hertzian contact eigenvalue can be:

[0047]

[0048] In the formula, when the first Hertz contact characteristic value is determined, E ′ E1 represents the first Hertz contact characteristic value, E2 represents the third elastic modulus, μ1 represents the first Poisson's ratio, and μ2 represents the third Poisson's ratio. When determining the second Hertz contact characteristic value, E... ′ E1 represents the second Hertz contact characteristic value, E2 represents the second elastic modulus information, μ1 represents the second Poisson's ratio information, and μ2 represents the third Poisson's ratio information.

[0049] In S220, the first long half-shaft point contact characteristic value of the bearing to be tested is determined based on the first mass information, the first instantaneous temperature information, the first Hertz contact characteristic value, the first principal curvature information, and the preset calculation formula for the long half-shaft point contact characteristic value. The first short half-shaft point contact characteristic value of the bearing to be tested is determined based on the third mass information, the first instantaneous temperature information, the first Hertz contact characteristic value, the first principal curvature information, and the preset calculation formula for the short half-shaft point contact characteristic value. The second long half-shaft point contact characteristic value of the bearing to be tested is determined based on the second mass information, the second instantaneous temperature information, the second Hertz contact characteristic value, the second principal curvature information, and the preset calculation formula for the long half-shaft point contact characteristic value. The second short half-shaft point contact characteristic value of the bearing to be tested is determined based on the third mass information, the second instantaneous temperature information, the second Hertz contact characteristic value, the second principal curvature information, and the preset calculation formula for the short half-shaft point contact characteristic value.

[0050] Specifically, the terminal device can input first mass information, first instantaneous temperature information, first Hertz contact characteristic value, and first principal curvature information into a preset formula for calculating the point contact characteristic value of the long half-shaft to determine the first point contact characteristic value of the bearing to be tested. At the same time, it can input third mass information, first instantaneous temperature information, first Hertz contact characteristic value, and first principal curvature information into a preset formula for calculating the point contact characteristic value of the short half-shaft to determine the first point contact characteristic value of the bearing to be tested. Furthermore, it can input second mass information, second instantaneous temperature information, second Hertz contact characteristic value, and second principal curvature information into a formula for calculating the point contact characteristic value of the long half-shaft to determine the second point contact characteristic value of the bearing to be tested. At the same time, it can input third mass information, second instantaneous temperature information, second Hertz contact characteristic value, and second principal curvature information into a formula for calculating the point contact characteristic value of the short half-shaft to determine the second point contact characteristic value of the bearing to be tested.

[0051] In some possible implementations, the formula for calculating the point contact characteristic value of the major semi-axis described above can be:

[0052]

[0053] In the formula, when determining the point contact characteristic value of the first long semi-axis, 'a' represents the point contact characteristic value of the first long semi-axis, and 'm' represents the point contact characteristic value of the first long semi-axis. a Q represents the first mass information, Q represents the first instantaneous temperature information, and E represents the first instantaneous temperature information. ′ Σρ represents the first Hertzian contact characteristic value, and Σρ represents the first principal curvature information; when determining the second semi-major axis point contact characteristic value, a represents the second semi-major axis point contact characteristic value, and m represents the first principal curvature information. a This represents the second mass information, Q represents the second instantaneous temperature information, and E represents the second instantaneous temperature information. ′ Σρ represents the second Hertz contact characteristic value, and Σρ represents the second principal curvature information.

[0054] In some possible implementations, the formula for calculating the point contact characteristic value of the short semi-axis mentioned above can be:

[0055]

[0056] In the formula, when determining the point contact characteristic value of the first short semi-axis, b represents the point contact characteristic value of the first short semi-axis, and m... b The third mass information is represented by Q, the first instantaneous temperature information is represented by E. ′ Σρ represents the first Hertzian contact characteristic value, and Σρ represents the first principal curvature information; when determining the second minor semi-axis point contact characteristic value, b represents the second minor semi-axis point contact characteristic value, and m represents the first principal curvature information. b Q represents the third mass information, and E represents the second instantaneous temperature information. ′ Σρ represents the second Hertz contact characteristic value, and Σρ represents the second principal curvature information.

[0057] In S230, the first contact area information of the bearing to be tested is determined based on the first long half-shaft point contact characteristic value, the first short half-shaft point contact characteristic value and the preset contact area calculation formula, and the second contact area information of the bearing to be tested is determined based on the second long half-shaft point contact characteristic value, the second short half-shaft point contact characteristic value and the preset contact area calculation formula.

[0058] Specifically, the terminal device can input the first long half-shaft point contact characteristic value and the first short half-shaft point contact characteristic value into the preset contact area calculation formula to determine the first contact area information of the bearing to be tested. At the same time, it can input the second long half-shaft point contact characteristic value and the second short half-shaft point contact characteristic value into the contact area calculation formula to determine the second contact area information of the bearing to be tested.

[0059] In some possible implementations, the above formula for calculating the contact area can be:

[0060] A = πab,

[0061] In the formula, when determining the first contact area information, A represents the first contact area information, a represents the first long semi-axis point contact characteristic value, and b represents the first short semi-axis point contact characteristic value; when determining the second contact area information, A represents the second contact area information, a represents the second long semi-axis point contact characteristic value, and b represents the second short semi-axis point contact characteristic value.

[0062] In S300, the first detection feature information of the bearing to be tested is determined based on the first instantaneous temperature information, the first recording time information, and the first contact area information, and the second detection feature information of the bearing to be tested is determined based on the second instantaneous temperature information, the second recording time information, and the second contact area information.

[0063] Specifically, the terminal device can determine the first detection characteristic information of the bearing under test based on the first instantaneous temperature information, the first recording time information, and the first contact area information. The first detection characteristic information is used to describe the first heat transfer relationship between the outer ring and the roller of the bearing. At the same time, the terminal device can determine the second detection characteristic information of the bearing under test based on the second instantaneous temperature information, the second recording time information, and the second contact area information. The second detection characteristic information is used to describe the second heat transfer relationship between the inner ring and the roller of the bearing. Thus, the heat transfer capacity between the various components of the rolling bearing can be effectively and accurately quantified through the first and second heat transfer relationships. The heat transfer relationship is determined by combining the important influencing factor of contact area, which is conducive to accurately analyzing the heat transfer relationship between the various components of the rolling bearing and greatly improving the reliability of the test results.

[0064] In some possible implementations, to improve the coupling between contact area and heat transfer relationship, please refer to [link / reference needed]. Figure 5 Step S300 includes, but is not limited to, the following steps:

[0065] In S310, the first instantaneous heat flow information of the bearing to be tested is determined based on the first instantaneous temperature information, the first recording time information, and the preset instantaneous heat flow calculation formula, and the second instantaneous heat flow information of the bearing to be tested is determined based on the second instantaneous temperature information, the second recording time information, and the preset instantaneous heat flow calculation formula.

[0066] Specifically, the terminal device can input the first instantaneous temperature information and the first recording time information into the preset instantaneous heat flow calculation formula to determine the first instantaneous heat flow information of the bearing to be tested. At the same time, the terminal device can input the second instantaneous temperature information and the second recording time information into the instantaneous heat flow calculation formula to determine the second instantaneous heat flow information of the bearing to be tested.

[0067] In some possible implementations, the above formula for calculating instantaneous heat flux can be:

[0068]

[0069] In the formula, when the heat flow information at the first instant is determined, This represents the heat flow information at the first instant, k represents the preset first thermal conductivity information of the bearing outer ring, Δx represents the preset first detection difference information, which describes the first distance difference between any two temperature sensors preset on the bearing outer ring, and t represents the first recording time information. This represents the first instantaneous temperature information at the (n+1)th node on the outer race of the bearing at time t. This represents the temperature information of the nth node on the bearing outer race at time t at the first instant; when determining the heat flow information at the second instant... The second instantaneous heat flow information is represented by k, the preset second thermal conductivity information of the bearing inner ring is represented by Δx, the preset second detection difference information is represented by Δx, which describes the second distance difference between any two temperature sensors preset on the bearing inner ring, and t represents the second recording time information. This represents the second instantaneous temperature information at the (n+1)th node on the inner ring of the bearing at time t. This represents the second instantaneous temperature information of the nth node on the inner ring of the bearing at time t.

[0070] In S320, the first detection feature information of the bearing to be tested is determined based on the first instantaneous heat flow information, the first contact area information, the temperature difference information, and the preset detection feature calculation formula. The second detection feature information of the bearing to be tested is determined based on the second instantaneous heat flow information, the second contact area information, the temperature difference information, and the preset detection feature calculation formula.

[0071] Specifically, after the terminal device determines the first instantaneous heat flow information and the second instantaneous heat flow information, the terminal device can input the first instantaneous heat flow information, the first contact area information, and the temperature difference information into the preset detection feature calculation formula to determine the first detection feature information of the bearing to be tested. At the same time, the terminal device can input the second instantaneous heat flow information, the second contact area information, and the temperature difference information into the detection feature calculation formula to determine the second detection feature information of the bearing to be tested.

[0072] In some possible implementations, the above formula for calculating the detection features can be:

[0073]

[0074] In the formula, when the first detection feature information is determined, K represents the first detection feature information. Let A represent the heat flux at the first instant, A represent the first contact area, and ΔT represent the difference between the first and second instantaneous temperature information. When determining the second detection feature information, K represents the second detection feature information. The second instantaneous heat flow information is represented by A, the second instantaneous contact area information is represented by ΔT, and the difference between the first instantaneous temperature information and the second instantaneous temperature information is represented by ΔT.

[0075] In some possible implementations, to more accurately determine the contact heat transfer coefficient, after the terminal device determines the heat flow information at the first and second instants, the terminal device can first calculate the average heat flow of the bearing under test according to the average heat flow calculation formula, and then calculate the contact heat transfer coefficient of the bearing under test according to the contact heat transfer coefficient calculation formula. The aforementioned average heat flow calculation formula can be:

[0076]

[0077] In the formula, Indicates average heat flow. and This represents the instantaneous heat flow on the surfaces of two different individuals;

[0078] The formula for calculating the contact heat transfer coefficient mentioned above can be:

[0079]

[0080] In the formula, L(t) is the contact heat transfer coefficient, and T is the contact heat transfer coefficient. a and T b This represents the surface temperature of two different individuals.

[0081] In some possible implementations, to help testing personnel determine the value of the testing data, please refer to [link / reference needed]. Figure 6 After step S300, the method further includes, but is not limited to, the following steps:

[0082] In the S400, radial load information and axial load information of the bearing to be tested are obtained based on a preset pressure sensor.

[0083] Specifically, the terminal device can acquire radial load and axial load information of the bearing to be tested based on a preset pressure sensor.

[0084] In S410, the rated radial bearing pressure upper limit, rated axial bearing pressure upper limit, and rated temperature upper limit of the bearing to be tested are obtained.

[0085] Specifically, after the terminal device acquires the radial load information and axial load information, the terminal device can acquire the rated radial bearing pressure upper limit value, rated axial bearing pressure upper limit value, and rated temperature upper limit value of the bearing under test. Among them, the rated radial bearing pressure upper limit value is used to describe the rated maximum bearing pressure value of the bearing under test in the radial direction, the rated axial bearing pressure upper limit value is used to describe the rated maximum bearing pressure value of the bearing under test in the axial direction, and the rated temperature upper limit value is used to describe the rated maximum operating temperature value of the bearing under test.

[0086] In S420, the radial load information is subtracted from the rated radial bearing pressure upper limit information to generate the first detection difference information.

[0087] Specifically, the terminal equipment can subtract the rated radial bearing pressure upper limit from the radial load information to generate the first detection difference information of the bearing to be tested.

[0088] In S430, the axial load information is subtracted from the rated axial bearing pressure upper limit information to generate the second detection difference information.

[0089] Specifically, after the terminal device generates the first detection difference information, the terminal device can subtract the rated axial bearing pressure upper limit information from the axial load information to generate the second detection difference information of the bearing to be tested.

[0090] In S440, the second instantaneous temperature information is subtracted from the rated temperature upper limit to generate the third detection difference information.

[0091] Specifically, after the terminal device generates the second detection difference information, the terminal device can subtract the rated temperature upper limit from the second instantaneous temperature information to generate the third detection difference information of the bearing to be tested.

[0092] In S450, the first detection difference information is compared with a preset first detection threshold, the second detection difference information is compared with a preset second detection threshold, and the third detection difference information is compared with a preset third detection threshold.

[0093] Specifically, the terminal device can compare the first detection difference information with the preset first detection threshold, compare the second detection difference information with the preset second detection threshold, and compare the third detection difference information with the preset third detection threshold.

[0094] In S460, if the first detection difference information is less than the first detection threshold, the second detection difference information is less than the second detection threshold, and the third detection difference information is less than the third detection threshold, then the parameter information, the first detection feature information, and the second detection feature information are marked.

[0095] Specifically, if the first detection difference information is less than the first detection threshold, the second detection difference information is less than the second detection threshold, and the third detection difference information is less than the third detection threshold, then the terminal device can perform identification processing on the parameter information, the first detection feature information, and the second detection feature information, thereby indicating that the parameter information, the first detection feature information, and the second detection feature information have a high degree of value.

[0096] In some possible implementations, to improve the robustness of the detection data, please refer to [link / reference]. Figure 7 After step S460, the method further includes, but is not limited to, the following steps:

[0097] In S470, an identification data packet is generated based on the parameter information after identification processing, the first detection feature information, and the second detection feature information.

[0098] Specifically, the terminal device can compress and generate an identification data packet based on the parameter information after identification processing, the first detection feature information, and the second detection feature information.

[0099] In S480, the identification data packet is uploaded to the preset test database.

[0100] Specifically, after the terminal device generates the identification data packet, it can upload the identification data packet to a preset test database, so that the test database can store a large amount of high-value test data.

[0101] The implementation principle of the bearing temperature test method under different working conditions in this application embodiment is as follows: The terminal device can first acquire the parameter information of the bearing to be tested, and then determine the first contact area information of the bearing to be tested based on the first mass information, the third mass information, and the first instantaneous temperature information. Furthermore, it determines the second contact area information of the bearing to be tested based on the second mass information, the third mass information, and the second instantaneous temperature information. Then, it determines the first detection characteristic information of the bearing to be tested based on the first instantaneous temperature information, the first recording time information, and the first contact area information. Finally, it determines the second detection characteristic information of the bearing to be tested based on the second instantaneous temperature information, the second recording time information, and the second contact area information. This more realistically simulates rolling bearings under different working conditions, which is beneficial for accurately detecting the temperature of rolling bearings under different working conditions. It also facilitates a more accurate analysis of the heat transfer relationship between various components in the rolling bearing, such as the heat transfer relationship between the outer ring and the roller and the heat transfer relationship between the inner ring and the roller. This also helps to accurately calculate the contact heat transfer coefficient between various contact parts of the bearing.

[0102] It should be noted that the sequence number of each step in the above embodiments does not imply the order of execution. The execution order of each process should be determined by its function and internal logic, and should not constitute any limitation on the implementation process of the embodiments of this application.

[0103] Embodiments of this application also provide a testing system based on bearing temperature tests under different operating conditions. For ease of explanation, only the parts relevant to this application are shown, such as... Figure 8 As shown, the system 80 includes:

[0104] Parameter information acquisition module 81: used to acquire parameter information of the bearing to be tested, wherein the parameter information includes the first mass information of the bearing outer ring, the second mass information of the bearing inner ring and the third mass information of the roller, the first instantaneous temperature information of the bearing outer ring, the first recording time information corresponding to the first instantaneous temperature information, the second instantaneous temperature information of the bearing inner ring and the second recording time information corresponding to the second instantaneous temperature information, the first instantaneous temperature information is used to describe the first instantaneous temperature corresponding to the first contact point between the bearing outer ring and the roller, and the second instantaneous temperature information is used to describe the second instantaneous temperature corresponding to the second contact point between the bearing inner ring and the roller;

[0105] Contact area information determination module 82: is used to determine the first contact area information of the bearing to be tested based on the first mass information, the third mass information and the first instantaneous temperature information, and to determine the second contact area information of the bearing to be tested based on the second mass information, the third mass information and the second instantaneous temperature information, wherein the first contact area information is used to describe the first contact area between the outer ring of the bearing and the roller, and the second contact area information is used to describe the second contact area between the inner ring of the bearing and the roller;

[0106] The detection feature information determination module 83 is used to determine the first detection feature information of the bearing to be tested based on the first instantaneous temperature information, the first recording time information, and the first contact area information, and to determine the second detection feature information of the bearing to be tested based on the second instantaneous temperature information, the second recording time information, and the second contact area information. The first detection feature information is used to describe the first heat transfer relationship between the outer ring and the roller of the bearing, and the second detection feature information is used to describe the second heat transfer relationship between the inner ring and the roller of the bearing.

[0107] Optionally, the system 80 also includes:

[0108] The principal curvature information acquisition module is used to acquire the first elastic modulus information of the bearing outer ring, the first Poisson's ratio information of the bearing outer ring, the second elastic modulus information of the bearing inner ring, the second Poisson's ratio information of the bearing inner ring, the third elastic modulus information and the third Poisson's ratio information of the roller, the first principal curvature information and the second principal curvature information of the bearing to be tested;

[0109] Accordingly, the contact area information determination module 82 includes:

[0110] Hertz contact characteristic value determination submodule: used to determine the first Hertz contact characteristic value of the bearing to be tested based on the first elastic modulus information, the third elastic modulus information, the first Poisson's ratio information, the third Poisson's ratio information and the preset Hertz contact characteristic value calculation formula, and to determine the second Hertz contact characteristic value of the bearing to be tested based on the second elastic modulus information, the third elastic modulus information, the second Poisson's ratio information, the third Poisson's ratio information and the preset Hertz contact characteristic value calculation formula;

[0111] The point contact characteristic value determination submodule is used to determine the first long half-shaft point contact characteristic value of the bearing to be tested based on the first mass information, the first instantaneous temperature information, the first Hertz contact characteristic value, the first principal curvature information, and the preset long half-shaft point contact characteristic value calculation formula; and to determine the first short half-shaft point contact characteristic value of the bearing to be tested based on the third mass information, the first instantaneous temperature information, the first Hertz contact characteristic value, the first principal curvature information, and the preset short half-shaft point contact characteristic value calculation formula; and to determine the second long half-shaft point contact characteristic value of the bearing to be tested based on the second mass information, the second instantaneous temperature information, the second Hertz contact characteristic value, the second principal curvature information, and the preset long half-shaft point contact characteristic value calculation formula; and to determine the second short half-shaft point contact characteristic value of the bearing to be tested based on the third mass information, the second instantaneous temperature information, the second Hertz contact characteristic value, the second principal curvature information, and the preset short half-shaft point contact characteristic value calculation formula.

[0112] The contact area information determination submodule is used to determine the first contact area information of the bearing to be tested based on the first long half-shaft point contact characteristic value, the first short half-shaft point contact characteristic value and the preset contact area calculation formula, and to determine the second contact area information of the bearing to be tested based on the second long half-shaft point contact characteristic value, the second short half-shaft point contact characteristic value and the preset contact area calculation formula.

[0113] Optionally, the above-mentioned detection feature information determination module 83 includes:

[0114] Instantaneous heat flow determination submodule: used to determine the first instantaneous heat flow information of the bearing to be tested based on the first instantaneous temperature information, the first recording time information and the preset instantaneous heat flow calculation formula, and to determine the second instantaneous heat flow information of the bearing to be tested based on the second instantaneous temperature information, the second recording time information and the preset instantaneous heat flow calculation formula;

[0115] The detection feature information determination submodule is used to determine the first detection feature information of the bearing to be tested based on the first instantaneous heat flow information, the first contact area information, the temperature difference information and the preset detection feature calculation formula, and to determine the second detection feature information of the bearing to be tested based on the second instantaneous heat flow information, the second contact area information, the temperature difference information and the preset detection feature calculation formula.

[0116] Optionally, the system 80 also includes:

[0117] Load information acquisition module: used to acquire radial load information and axial load information of the bearing under test based on a preset pressure sensor;

[0118] Rated radial bearing pressure upper limit information acquisition module: used to acquire the rated radial bearing pressure upper limit information, rated axial bearing pressure upper limit information, and rated temperature upper limit information of the bearing to be tested;

[0119] First detection difference information generation module: used to subtract the rated radial bearing pressure upper limit value from the radial load information to generate the first detection difference information;

[0120] The second detection difference information generation module is used to subtract the rated axial bearing pressure upper limit value from the axial load information to generate the second detection difference information.

[0121] The third detection difference information generation module is used to subtract the rated temperature upper limit from the second instantaneous temperature information to generate the third detection difference information.

[0122] The detection difference information comparison module is used to compare the first detection difference information with the preset first detection threshold, compare the second detection difference information with the preset second detection threshold, and compare the third detection difference information with the preset third detection threshold.

[0123] The detection feature information identification module is used to identify the parameter information, the first detection feature information, and the second detection feature information if the first detection difference information is less than the first detection threshold, the second detection difference information is less than the second detection threshold, and the third detection difference information is less than the third detection threshold.

[0124] Optionally, the system 80 also includes:

[0125] Identification data packet generation module: used to generate identification data packets based on the parameter information after identification processing, the first detection feature information, and the second detection feature information;

[0126] Identification data packet upload module: used to upload identification data packets to a preset test database.

[0127] It should be noted that the information interaction and execution process between the above modules are based on the same concept as the method embodiments of this application. For details on their specific functions and technical effects, please refer to the method embodiments section, which will not be repeated here.

[0128] This application also provides a terminal device, such as... Figure 9 As shown, the terminal device 90 of this embodiment includes: a processor 91, a memory 92, and a computer program 93 stored in the memory 92 and executable on the processor 91. When the processor 91 executes the computer program 93, it implements the steps in the above-described traffic processing method embodiment, for example... Figure 1 Steps S100 to S300 are shown; or, when processor 91 executes computer program 93, it implements the functions of each module in the above-described device, for example... Figure 8 The functions of modules 81 to 83 are shown.

[0129] The terminal device 90 can be a desktop computer, laptop, handheld computer, cloud server, or other computing device. The terminal device 90 includes, but is not limited to, a processor 91 and a memory 92. Those skilled in the art will understand that... Figure 9 This is merely an example of terminal device 90 and does not constitute a limitation on terminal device 90. It may include more or fewer components than shown, or combine certain components, or different components. For example, terminal device 90 may also include input / output devices, network access devices, buses, etc.

[0130] The processor 91 can be a central processing unit (CPU), or other general-purpose processors, digital signal processors (DSPs), application-specific integrated circuits (ASICs), field-programmable gate arrays (FPGAs), or other programmable logic devices, discrete gate or transistor logic devices, discrete hardware components, etc.; the general-purpose processor can be a microprocessor or any conventional processor, etc.

[0131] The memory 92 can be an internal storage unit of the terminal device 90, such as the hard disk or memory of the terminal device 90. The memory 92 can also be an external storage device of the terminal device 90, such as a plug-in hard disk, smart media card (SMC), secure digital (SD) card, flash card, etc., equipped on the terminal device 90. Furthermore, the memory 92 can include both internal storage units and external storage devices of the terminal device 90. The memory 92 can also store computer program 93 and other programs and data required by the terminal device 90. The memory 92 can also be used to temporarily store data that has been output or will be output.

[0132] One embodiment of this application also provides a computer-readable storage medium storing a computer program that, when executed by a processor, can implement the steps of the various method embodiments described above. The computer program includes computer program code, which can be in the form of source code, object code, executable file, or some intermediate form. The computer-readable medium can include any entity or device capable of carrying computer program code, a recording medium, a USB flash drive, a portable hard drive, a magnetic disk, an optical disk, a computer memory, a read-only memory (ROM), a random access memory (RAM), an electrical carrier signal, a telecommunication signal, and a software distribution medium, etc.

[0133] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the methods, principles and structures of this application should be covered within the scope of protection of this application.

Claims

1. A testing method based on bearing temperature tests under different operating conditions, applicable to bearings under test, wherein the bearing under test includes an outer bearing ring, an inner bearing ring, and rollers, characterized in that, The method includes: The parameter information of the bearing to be tested is obtained, wherein the parameter information includes the first mass information of the bearing outer ring, the second mass information of the bearing inner ring and the third mass information of the roller, the first instantaneous temperature information of the bearing outer ring, the first recording time information corresponding to the first instantaneous temperature information, the second instantaneous temperature information of the bearing inner ring and the second recording time information corresponding to the second instantaneous temperature information, wherein the first instantaneous temperature information is used to describe the first instantaneous temperature corresponding to the first contact point between the bearing outer ring and the roller, and the second instantaneous temperature information is used to describe the second instantaneous temperature corresponding to the second contact point between the bearing inner ring and the roller; Based on the first mass information, the third mass information, and the first instantaneous temperature information, the first contact area information of the bearing to be tested is determined, and based on the second mass information, the third mass information, and the second instantaneous temperature information, the second contact area information of the bearing to be tested is determined, wherein the first contact area information is used to describe the first contact area between the outer ring of the bearing and the roller, and the second contact area information is used to describe the second contact area between the inner ring of the bearing and the roller; Based on the first instantaneous temperature information, the first recording time information, and the first contact area information, the first detection feature information of the bearing to be tested is determined, and based on the second instantaneous temperature information, the second recording time information, and the second contact area information, the second detection feature information of the bearing to be tested is determined. The first detection feature information is used to describe the first heat transfer relationship between the outer ring of the bearing and the roller, and the second detection feature information is used to describe the second heat transfer relationship between the inner ring of the bearing and the roller.

2. The method according to claim 1, characterized in that, Before determining the first contact area information of the bearing to be tested based on the first mass information, the third mass information, and the first instantaneous temperature information, and before determining the second contact area information of the bearing to be tested based on the second mass information, the third mass information, and the second instantaneous temperature information, the method further includes: The method acquires the first elastic modulus information of the bearing outer ring, the first Poisson's ratio information of the bearing outer ring, the second elastic modulus information of the bearing inner ring, the second Poisson's ratio information of the bearing inner ring, the third elastic modulus information and the third Poisson's ratio information of the roller, the first principal curvature information and the second principal curvature information of the bearing to be tested, wherein the first principal curvature information is used to describe the sum of the first principal curvatures corresponding to the first contact point between the bearing outer ring and the roller, and the second principal curvature information is used to describe the sum of the second principal curvatures corresponding to the second contact point between the bearing inner ring and the roller; Accordingly, determining the first contact area information of the bearing to be tested based on the first mass information, the third mass information, and the first instantaneous temperature information, and determining the second contact area information of the bearing to be tested based on the second mass information, the third mass information, and the second instantaneous temperature information, includes: Based on the first elastic modulus information, the third elastic modulus information, the first Poisson's ratio information, the third Poisson's ratio information, and a preset Hertzian contact characteristic value calculation formula, the first Hertzian contact characteristic value of the bearing to be tested is determined, and based on the second elastic modulus information, the third elastic modulus information, the second Poisson's ratio information, the third Poisson's ratio information, and the preset Hertzian contact characteristic value calculation formula, the second Hertzian contact characteristic value of the bearing to be tested is determined, wherein the Hertzian contact characteristic value calculation formula is: In the formula, when the first Hertz contact characteristic value is determined, E′ is the first Hertz contact characteristic value, E1 is the first elastic modulus information, E2 is the third elastic modulus information, μ1 is the first Poisson's ratio information, and μ2 is the third Poisson's ratio information; when the second Hertz contact characteristic value is determined, E′ is the second Hertz contact characteristic value, E1 is the second elastic modulus information, E2 is the third elastic modulus information, μ1 is the second Poisson's ratio information, and μ2 is the third Poisson's ratio information. Based on the first mass information, the first instantaneous temperature information, the first Hertzian contact characteristic value, the first principal curvature information, and a preset formula for calculating the long semi-shaft point contact characteristic value, the first long semi-shaft point contact characteristic value of the bearing to be tested is determined. Furthermore, based on the third mass information, the first instantaneous temperature information, the first Hertzian contact characteristic value, the first principal curvature information, and a preset formula for calculating the short semi-shaft point contact characteristic value, the first short semi-shaft point contact characteristic value of the bearing to be tested is determined. Similarly, based on the second mass information, the second instantaneous temperature information, the second Hertzian contact characteristic value, the second principal curvature information, and a preset formula for calculating the long semi-shaft point contact characteristic value, the second long semi-shaft point contact characteristic value of the bearing to be tested is determined. Finally, based on the third mass information, the second instantaneous temperature information, the second Hertzian contact characteristic value, the second principal curvature information, and a preset formula for calculating the short semi-shaft point contact characteristic value, the second short semi-shaft point contact characteristic value of the bearing to be tested is determined. The formula for calculating the long semi-shaft point contact characteristic value is as follows: In the formula, when determining the point contact characteristic value of the first long semi-axis, a is the point contact characteristic value of the first long semi-axis, and m... a Here, Q is the first mass information, Q is the first instantaneous temperature information, E′ is the first Hertzian contact characteristic value, and Σρ is the first principal curvature information; when determining the second semi-axial point contact characteristic value, a is the second semi-axial point contact characteristic value, and m... a Q is the second mass information, E′ is the second instantaneous temperature information, Σρ is the second Hertz contact characteristic value, and Σρ is the second principal curvature information. The formula for calculating the point contact characteristic value of the short semi-axis is: In the formula, when determining the contact characteristic value of the first short semi-axis, b is the contact characteristic value of the first short semi-axis, and m... b The third quality information is defined as follows: Q is the first instantaneous temperature information, E′ is the first Hertzian contact characteristic value, and Σρ is the first principal curvature information; when determining the second minor semi-axis point contact characteristic value, b is the second minor semi-axis point contact characteristic value, and m... b The third quality information is Q, the second instantaneous temperature information is E′, the second Hertz contact characteristic value is Σρ, and the second principal curvature information is Σρ. Based on the first long semi-shaft point contact characteristic value, the first short semi-shaft point contact characteristic value, and a preset contact area calculation formula, the first contact area information of the bearing to be tested is determined. Furthermore, based on the second long semi-shaft point contact characteristic value, the second short semi-shaft point contact characteristic value, and the preset contact area calculation formula, the second contact area information of the bearing to be tested is determined. The contact area calculation formula is as follows: A = πab, In the formula, when the first contact area information is determined, A is the first contact area information, a is the first long semi-axis point contact characteristic value, and b is the first short semi-axis point contact characteristic value; when the second contact area information is determined, A is the second contact area information, a is the second long semi-axis point contact characteristic value, and b is the second short semi-axis point contact characteristic value.

3. The method according to claim 1, characterized in that, The step of determining the first detection feature information of the bearing to be tested based on the first instantaneous temperature information, the first recording time information, and the first contact area information, and determining the second detection feature information of the bearing to be tested based on the second instantaneous temperature information, the second recording time information, and the second contact area information, includes: Based on the first instantaneous temperature information, the first recording time information, and a preset instantaneous heat flow calculation formula, the first instantaneous heat flow information of the bearing to be tested is determined. Furthermore, based on the second instantaneous temperature information, the second recording time information, and the preset instantaneous heat flow calculation formula, the second instantaneous heat flow information of the bearing to be tested is determined. The instantaneous heat flow calculation formula is as follows: In the formula, when the heat flow information at the first instant is determined, Here, k represents the first instantaneous heat flow information, k represents the preset first thermal conductivity information of the bearing outer ring, Δx represents the preset first detection difference information, which describes the first distance difference between any two temperature sensors preset on the bearing outer ring, and t represents the first recording time information. This refers to the first instantaneous temperature information at the (n+1)th node on the outer race of the bearing at time t. The first instantaneous temperature information at the nth node on the outer race of the bearing at time t; when determining the second instantaneous heat flow information. Here, k represents the second instantaneous heat flow information, k represents the preset second thermal conductivity information of the bearing inner ring, Δx represents the preset second detection difference information, which describes the second distance difference between any two temperature sensors preset on the bearing inner ring, and t represents the second recording time information. This refers to the second instantaneous temperature information at the (n+1)th node on the inner ring of the bearing at time t. The second instantaneous temperature information at time t is the nth node on the inner ring of the bearing. Based on the first instantaneous heat flow information, the first contact area information, the temperature difference information, and a preset detection feature calculation formula, the first detection feature information of the bearing to be tested is determined, and based on the second instantaneous heat flow information, the second contact area information, the temperature difference information, and the preset detection feature calculation formula, the second detection feature information of the bearing to be tested is determined, wherein the detection feature calculation formula is: In the formula, when the first detection feature information is determined, K represents the first detection feature information. Here, A represents the first instantaneous heat flux information, A represents the first contact area information, and ΔT represents the difference between the first instantaneous temperature information and the second instantaneous temperature information; when the second detection feature information is determined, K represents the second detection feature information. Here, A represents the second instantaneous heat flow information, A represents the second contact area information, and ΔT represents the difference between the first instantaneous temperature information and the second instantaneous temperature information.

4. The method according to claim 1, characterized in that, After determining the first detection feature information of the bearing to be tested based on the first instantaneous temperature information, the first recording time information, and the first contact area information, and determining the second detection feature information of the bearing to be tested based on the second instantaneous temperature information, the second recording time information, and the second contact area information, the method further includes: Based on a preset pressure sensor, the radial load information and axial load information of the bearing to be tested are obtained; Obtain the rated radial bearing pressure upper limit, rated axial bearing pressure upper limit, and rated temperature upper limit of the bearing to be tested; Subtracting the rated radial bearing pressure upper limit from the radial load information generates the first detection difference information. Subtracting the rated axial bearing pressure upper limit from the axial load information generates the second detection difference information. Subtract the rated temperature upper limit from the second instantaneous temperature information to generate the third detection difference information; The first detection difference information is compared with a preset first detection threshold, the second detection difference information is compared with a preset second detection threshold, and the third detection difference information is compared with a preset third detection threshold. If the first detection difference information is less than the first detection threshold, the second detection difference information is less than the second detection threshold, and the third detection difference information is less than the third detection threshold, then the parameter information, the first detection feature information, and the second detection feature information are marked.

5. The method according to claim 4, characterized in that, After performing identification processing on the parameter information, the first detection feature information, and the second detection feature information if the first detection difference information is less than the first detection threshold, the second detection difference information is less than the second detection threshold, and the third detection difference information is less than the third detection threshold, the method further includes: An identification data packet is generated based on the parameter information after identification processing, the first detection feature information, and the second detection feature information; The identification data packet is uploaded to a preset test database.

6. A testing system based on bearing temperature tests under different operating conditions, applicable to bearings under test, wherein the bearing under test includes an outer bearing ring, an inner bearing ring, and rollers, characterized in that, The system includes: Parameter information acquisition module: used to acquire parameter information of the bearing to be tested, wherein the parameter information includes first mass information of the bearing outer ring, second mass information of the bearing inner ring and third mass information of the roller, first instantaneous temperature information of the bearing outer ring, first recording time information corresponding to the first instantaneous temperature information, second instantaneous temperature information of the bearing inner ring and second recording time information corresponding to the second instantaneous temperature information, wherein the first instantaneous temperature information is used to describe the first instantaneous temperature corresponding to the first contact point between the bearing outer ring and the roller, and the second instantaneous temperature information is used to describe the second instantaneous temperature corresponding to the second contact point between the bearing inner ring and the roller; The contact area information determination module is used to determine the first contact area information of the bearing to be tested based on the first mass information, the third mass information, and the first instantaneous temperature information, and to determine the second contact area information of the bearing to be tested based on the second mass information, the third mass information, and the second instantaneous temperature information, wherein the first contact area information is used to describe the first contact area between the outer ring of the bearing and the roller, and the second contact area information is used to describe the second contact area between the inner ring of the bearing and the roller; The detection feature information determination module is used to determine the first detection feature information of the bearing to be tested based on the first instantaneous temperature information, the first recording time information, and the first contact area information, and to determine the second detection feature information of the bearing to be tested based on the second instantaneous temperature information, the second recording time information, and the second contact area information. The first detection feature information is used to describe the first heat transfer relationship between the outer ring of the bearing and the roller, and the second detection feature information is used to describe the second heat transfer relationship between the inner ring of the bearing and the roller.

7. A terminal device, comprising a memory, a processor, and a computer program stored in the memory and executable on the processor, characterized in that, When the processor executes the computer program, it implements the steps of the method as described in any one of claims 1 to 5.

8. A computer-readable storage medium storing a computer program, characterized in that, When the computer program is executed by a processor, it implements the steps of the method as described in any one of claims 1 to 5.

Images