Motor drop test method, device and equipment for motor processing, and medium

Abstract

The invention discloses a motor drop test method, device and equipment for motor processing, and a medium, relates to the field of motor testing, and solves the problems that the anti-drop level corresponding to different parts of a motor cannot be judged in the current motor drop test and the performance of the motor cannot be analyzed in the drop test. The method comprises the steps that a target motor is divided into a plurality of test parts, the target motor is analyzed for the first time, and then test parameters corresponding to the test parts in the target motor are set; the test terminal performs a drop test on the target motor according to the test parameters; performing performance test on the target motor after the drop test to obtain an iron core actual temperature rise value and a winding actual temperature rise value of the target motor; according to the method, the test parameters of different parts in the motor are adaptively set based on information analysis, and the performance of the motor is analyzed after the drop test, so that the drop resistance of the different parts of the motor is judged.

Description

Technical Field

[0001] The invention belongs to motor testing technology, and specifically relates to a motor drop test method, device, equipment and medium for motor processing. Background Art

[0002] With the advancement of technology and the development of manufacturing, motors are gradually used in various places in our daily life. Motors are prone to falling during transportation and use. In order to understand the damage caused by falling to the internal parts of the motor, it is necessary to perform a drop test on the motor before it is processed and shipped out of the factory.

[0003] In most cases, the existing drop test is to test the motor with gradually increasing drop heights several times, and record the degree of damage to the motor's outer surface after the test, without pre-judging the drop resistance level corresponding to different parts of the motor, setting different drop test heights and drop test times for different parts, and analyzing the overall performance of the motor after completing the drop test, and thus unable to judge the drop resistance of different parts of the motor; To this end, we propose motor drop test methods, devices, equipment and media for motor processing. Summary of the invention

[0004] The purpose of the present invention is to solve the above problems and to propose a motor drop test method, device, equipment and medium for motor processing to solve the problems raised in the above background technology.

[0005] In order to achieve the above object, the present invention adopts the following technical solutions: First, the motor drop test method for motor processing, the motor drop test method is as follows: Step S1, dividing the target motor into a plurality of test parts, and initially analyzing the target motor, and then setting test parameters corresponding to the test parts in the target motor; Step S2, the test terminal performs a drop test on the target motor according to the test parameters; Step S3, performing a performance test on the target motor after the drop test to obtain an actual temperature rise value of the core and an actual temperature rise value of the winding of the target motor; Step S4, calculating the excellent value of the corresponding test part of the target motor, and determining the anti-drop capability of the corresponding test part; Step S5, selecting another target motor and repeating the above steps until all target motors that need to be tested are tested, and the test results are sent to the display terminal for display.

[0006] Furthermore, the step S1 includes the following sub-steps: Step S11, obtaining historical fault information corresponding to the target motor; Step S12, dividing the maintenance amount of different test parts by the sales amount to obtain the maintenance rate of different test parts of the target motor in the previous quarter; Step S13, if the part maintenance rates of all test parts are less than the first fault threshold, the test levels of all test parts corresponding to the target motor are all set to the first test level; if the part maintenance rate of any test part is greater than or equal to the first fault threshold and less than the second fault threshold, the test part corresponding to the target motor is set to the second test level; if the part maintenance rate of any test part is greater than or equal to the second fault threshold, the test part corresponding to the target motor is set to the third test level; Among them, the first fault threshold is lower than the second fault threshold, the level of the first test level is lower than the level of the second test level, and the level of the second test level is lower than the level of the third test level. It can be understood that the test intensity of the first test level is lower than the test intensity of the second test level, and the test intensity of the second test level is lower than the test intensity of the third test level; Step S14, setting the test parameters corresponding to the target motor according to the test level; The test parameters are a drop test height and a preset test number of the target motor, wherein the drop test height of the first test level is lower than the drop test height of the second test level, the drop test height of the second test level is lower than the drop test height of the third test level, the preset test number of the first test level is less than the preset test number of the second test level, and the preset test number of the second test level is less than the preset test number of the third test level; Step S15, sending the test parameters corresponding to the test parts of the target motor to the test terminal.

[0007] Furthermore, the historical fault information specifically includes the sales volume of motors of the same model as the target motor in the previous quarter, and the part repair volume of test parts in motors of the same model as the target motor sold, where the part repair volume corresponds to the number of cracks or dents on the surface of the test parts in motors of the same model as the target motor.

[0008] Furthermore, the test process of the drop test is as follows: Step S21, obtaining the drop test height and preset test quantity corresponding to the test part in the target motor; Step S22, adding a weight block to the test part of the target motor so that the center of gravity of the target motor is located on the test part, and then raising the target motor to a drop test height; Step S23, releasing the target motor, allowing the target motor to freely fall with the test part facing downward. If no cracks appear on the surface of the target motor and the weight of the target motor does not change after falling, directly executing step S25; if cracks appear on the surface of the target motor or the weight of the target motor decreases after falling, then recording the crack length of the crack on the surface of the target motor and the weight of the target motor after falling and proceeding to the next step; Step S24, adding the crack lengths of all cracks on the surface of the target motor to obtain the drop crack length corresponding to the target motor, and subtracting the weight of the target motor after the drop from the initial weight of the target motor to obtain the drop weight difference corresponding to the target motor; Step S25, if the drop crack length corresponding to the target motor is greater than or equal to the crack length threshold or the drop weight difference corresponding to the target motor is greater than or equal to the drop weight threshold, then the repeated execution of the operation is terminated and the drop test number of the current drop test is recorded; if the drop crack length corresponding to the target motor is less than the crack length threshold and the drop weight difference corresponding to the target motor is less than the drop weight threshold, then the above steps are repeated until the number of tests of the target motor reaches the preset test number; Step S26, if the target motor cannot be started, the drop test result of the test part in the target motor is unqualified; if the target motor is successfully started, the target motor is run for a period of time to determine whether abnormal vibration occurs during the operation of the target motor. If abnormal vibration occurs, the drop test result of the test part in the target motor is unqualified; if no abnormal vibration occurs, proceed to the next step.

[0009] Furthermore, the determination process of abnormal vibration is as follows: Step S261, obtaining a test sound wave of the target motor when it is running, and importing the test sound wave into an audio analysis software to obtain a test sound wave graph corresponding to the test sound wave of the target motor; Step S262, comparing the test sound wave graph of the target motor when it is running with a plurality of preset vibration sound wave graphs, if the test sound wave graph of the target motor when it is running matches any one of the preset vibration sound wave graphs, it is determined that the target motor has abnormal vibration; Step S263, if the test sound wave graph of the target motor during operation does not match the preset vibration sound wave graph, it is determined that the target motor does not have abnormal vibration; The test sound wave graph is overlapped with the preset vibration sound wave graph. If there is an overlapping area between the test sound wave graph and the preset vibration sound wave graph and the area of ​​the overlapping area exceeds the preset area, the test sound wave graph is determined to match the preset vibration sound wave graph. If there is no overlapping area between the test sound wave graph and the preset vibration sound wave graph, or if there is an overlapping area between the test sound wave graph and the preset vibration sound wave graph but the area of ​​the overlapping area does not exceed the preset area, the test sound wave graph is determined to not match the preset vibration sound wave graph.

[0010] Furthermore, the step S3 specifically includes the following sub-steps: Step S31, starting the target motor, and making the target motor operate under three states: rated power, rated excitation current and rated armature current; Step S32, recording the stator winding temperature rise value and the stator core temperature rise value of the target motor under different states; Step S33, adding and averaging the stator winding temperature rise values ​​of the target motor under different states to obtain the winding average temperature rise value RZSP, and adding and averaging the stator core temperature rise values ​​of the target motor under different states to obtain the core average temperature rise value TXSP corresponding to the target motor; Step S34, obtaining the actual winding temperature rise value RZS and the actual core temperature rise value TXS of the target motor through an empirical formula; Among them, the empirical formula for the actual temperature rise value of the winding is: ; In the formula, PFe refers to the difference between the winding loss rate corresponding to the rated voltage and the winding loss rate corresponding to the low power load voltage, PCua refers to the winding loss rate corresponding to the low power load voltage, and K is the empirical coefficient; Among them, the empirical formula for the actual temperature rise of the core is: ; Where PF is the iron loss rate at rated voltage.

[0011] Furthermore, the step S4 includes the following sub-steps: Step S41, obtaining the actual core temperature rise value TXS and the actual winding temperature rise value RZS of the target motor, and obtaining the drop crack length DLC, drop weight difference DZC and drop test number DCS corresponding to the target motor; Step S42, calculating the part excellence value of the target motor corresponding to the test part by a formula, the specific formula is as follows: ; In the formula, YDC is the preset test quantity, e is a natural constant, λ is the compensation amount of the weight block, 0≤λ<3, the greater the weight of the weight block, the greater the value of λ, when no weight block is added, the value of λ is 0; A1 and A2 are fixed numerical proportional coefficients, and the values ​​of A1 and A2 are both greater than 0; Step S43, if the part excellent value is greater than or equal to the first part excellent threshold, the anti-drop level of the corresponding test part of the target motor is recorded as first-level anti-drop level; If the excellent value of a part is less than the excellent threshold of the first part and greater than or equal to the excellent threshold of the second part, the drop resistance level of the corresponding test part of the target motor is recorded as level 2 drop resistance; If the excellent value of a part is less than the excellent threshold of the second part, the drop resistance level of the corresponding test part of the target motor is recorded as level 3 drop resistance, and the excellent threshold of the first part is greater than the excellent threshold of the second part; Among them, the anti-drop capacity of the corresponding part of the third-level anti-drop is less than the anti-drop capacity of the corresponding part of the second-level anti-drop, and the anti-drop capacity of the corresponding part of the second-level anti-drop is less than the anti-drop capacity of the corresponding part of the first-level anti-drop.

[0012] In the second aspect, a motor drop test device for motor processing includes: A data acquisition module, used to acquire historical fault information corresponding to the target motor; A preliminary analysis module is used to obtain the test parameters of the corresponding test parts of the target motor based on historical fault information analysis; A test terminal, used to perform a drop test on a corresponding test part of a target motor according to test parameters; The data analysis module is used to perform a performance test on the target motor after the drop test, and obtain the actual temperature rise values ​​of the core and the winding of the target motor. It is also used to analyze and obtain the anti-drop capability of the corresponding test parts of the target motor; The display terminal is used to display the anti-drop capability of the corresponding test part of the target motor.

[0013] According to a third aspect, a computer device is provided, the computer device comprising: A memory storing a computer program; A processor is communicatively connected to the memory, and when the computer program is executed by the processor, a motor drop test method for motor processing is implemented.

[0014] In a fourth aspect, a computer-readable storage medium stores a computer program, which, when executed by a processor, implements a motor drop test method for motor processing.

[0015] In summary, due to the adoption of the above technical solution, the beneficial effects of the present invention are: The present invention first divides the target motor into multiple test parts, and then performs a primary analysis on the target motor to obtain test parameters corresponding to the test parts in the target motor. During the drop test, the target motor is subjected to a drop test according to the test parameters, and a performance test is performed on the target motor after the drop test to obtain the actual temperature rise value of the core and the actual temperature rise value of the winding of the target motor. At the same time, the part excellent value of the corresponding test part of the target motor is calculated, so as to determine the anti-drop ability of the corresponding test part. The present invention adapts and sets the test parameters of different parts in the motor based on information analysis, and analyzes the motor performance after the drop test, so as to determine the anti-drop ability of different parts of the motor. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to facilitate understanding by those skilled in the art, the present invention is further described below in conjunction with the accompanying drawings; Figure 1 is a flow chart of the method of the present invention; Figure 2 is a schematic diagram of the drop test height in the present invention; Figure 3 It is a structural block diagram of the motor drop test device in the present invention; Figure 4 It is a schematic diagram of an electronic device of the present invention. DETAILED DESCRIPTION

[0017] The technical solution of the present invention will be clearly and completely described below in conjunction with the embodiments. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0018] Embodiment 1: In this embodiment, the motor used for testing is recorded as the target motor, and the target motor is divided into multiple test parts. For example, the total length of the target motor can be divided into multiple test parts of equal length. At the same time, in this embodiment, we assume that the motor weight, motor rated power, rated excitation current and rated armature current corresponding to the target motor are known.

[0019] See also Figure 1-2 As shown, the technical solution provided by the present invention is: a motor drop test method for motor processing, the method is as follows: Step S1, dividing the target motor into a plurality of test parts, and initially analyzing the target motor, and then setting test parameters corresponding to the test parts in the target motor; like Figure 2 As shown, the drop test height refers to the distance between the lowest end of the target motor and the ground when the drop test is actually performed; In this embodiment, step S1 includes the following sub-steps: Step S11, obtaining historical fault information corresponding to the target motor; The historical fault information specifically includes the sales volume of the motors of the same model as the target motor in the previous quarter, and the repair volume of the test parts of the motors of the same model as the target motor sold, where the repair volume is the number of cracks or dents on the surface of the test parts of the motors of the same model as the target motor; Step S12, dividing the maintenance amount of different test parts by the sales amount to obtain the maintenance rate of different test parts of the target motor in the previous quarter; Step S13, if the part maintenance rates of all test parts are less than the first fault threshold, the test levels of all test parts corresponding to the target motor are all set to the first test level; if the part maintenance rate of any test part is greater than or equal to the first fault threshold and less than the second fault threshold, the test part corresponding to the target motor is set to the second test level; if the part maintenance rate of any test part is greater than or equal to the second fault threshold, the test part corresponding to the target motor is set to the third test level; Among them, the first fault threshold is lower than the second fault threshold, the level of the first test level is lower than the level of the second test level, and the level of the second test level is lower than the level of the third test level. It can be understood that the test intensity of the first test level is lower than the test intensity of the second test level, and the test intensity of the second test level is lower than the test intensity of the third test level; Step S14, setting the test parameters corresponding to the target motor according to the test level; the test parameters are specifically the drop test height and the preset test number of the target motor, and the setting process of the test parameters is as follows: If the test level is level 1, the drop test height of the corresponding test part is set to G1 and the preset test quantity is set to X1; If it is the second test level, the drop test height of the corresponding test part is set to G2 and the preset test number is set to X2; If the test level is level 3, the drop test height of the corresponding test part is set to G3 and the preset test quantity is set to X3, where 0<X1<X2<X3, 0<G1<G2<G3; Step S15, sending the test parameters corresponding to the test parts of the target motor to the test terminal; Step S2: the test terminal performs a drop test on the target motor according to the test parameters. The test process of the drop test is as follows: Step S21, obtaining the drop test height and preset test quantity corresponding to the test part in the target motor; Step S22, adding a weight block to the test part of the target motor so that the center of gravity of the target motor is located on the test part, the purpose of the weight block is to ensure that the test part touches the ground first, and then the target motor is raised to the drop test height; Step S23, releasing the target motor, allowing the target motor to freely fall with the test part facing downward, and then observing the target motor. If no cracks appear on the surface of the target motor and the weight of the target motor does not change after falling, directly executing step S25; if cracks appear on the surface of the target motor or the weight of the target motor decreases after falling, then recording the crack length of the surface crack of the target motor after it is stationary and the weight of the target motor after falling, and proceeding to the next step; Step S24, adding the crack lengths of all cracks on the surface of the target motor to obtain the drop crack length corresponding to the target motor, and subtracting the weight of the target motor after the drop from the initial weight of the target motor to obtain the drop weight difference corresponding to the target motor; It should be noted that if the target motor only loses weight after falling, but no cracks appear on the surface, the crack length is recorded as 0; Step S25, if the drop crack length corresponding to the target motor is greater than or equal to the crack length threshold or the drop weight difference corresponding to the target motor is greater than or equal to the drop weight threshold, then stop repeatedly executing the operation and record the drop test number of the current drop test; if the drop crack length corresponding to the target motor is less than the crack length threshold and the drop weight difference corresponding to the target motor is less than the drop weight threshold, then repeat steps S22 to S24 until the number of tests of the target motor reaches the preset test number; Step S26, recording the start-up status of the target motor. If the target motor cannot be started, the drop test result of the test part in the target motor is regarded as unqualified; if the target motor is successfully started, the target motor is run for a period of time to determine whether abnormal vibration occurs during the operation of the target motor. If abnormal vibration occurs, the drop test result of the test part in the target motor is regarded as unqualified. If no abnormal vibration occurs, proceed to the next step; In step S26, the abnormal vibration determination process is as follows: Step S261, obtaining a test sound wave of the target motor when it is running, and importing the test sound wave into an audio analysis software such as Praat to obtain a test sound wave graph corresponding to the test sound wave of the target motor; Step S262, comparing the test sound wave graph of the target motor when it is running with a plurality of preset vibration sound wave graphs, if the test sound wave graph of the target motor when it is running matches any one of the preset vibration sound wave graphs, it is determined that the target motor has abnormal vibration; Step S263, if the test sound wave graph of the target motor during operation does not match the preset vibration sound wave graph, it is determined that the target motor does not have abnormal vibration; In practice, the test sound wave graph and the preset vibration sound wave graph are overlapped and placed. If there is an overlapping area between the test sound wave graph and the preset vibration sound wave graph and the area of ​​the overlapping area exceeds the preset area, then it can be determined that the test sound wave graph matches the preset vibration sound wave graph. If there is no overlapping area between the test sound wave graph and the preset vibration sound wave graph, or if there is an overlapping area between the test sound wave graph and the preset vibration sound wave graph but the area of ​​the overlapping area does not exceed the preset area, then it is determined that the test sound wave graph does not match the preset vibration sound wave graph. Step S3, performing a performance test on the target motor after the drop test to obtain an actual temperature rise value of the core and an actual temperature rise value of the winding of the target motor; The step S3 specifically includes the following sub-steps: Step S31, starting the target motor, and making the target motor operate under three states: rated power, rated excitation current and rated armature current; Among them, the rated armature current refers to the maximum current value allowed by the motor armature under rated load, usually expressed in amperes (A), while the rated excitation current refers to the excitation current required to maintain stable operation of the motor, also expressed in amperes (A); Step S32, recording the stator winding temperature rise value and the stator core temperature rise value of the target motor under different states, respectively recorded as RZS1, DZS1, RZS2, DZS2, RZS3, DZS3, wherein RZS1 and DZS1 respectively represent the stator winding temperature rise value and the stator core temperature rise value of the target motor corresponding to the rated power, RZS2 and DZS2 respectively represent the stator winding temperature rise value and the stator core temperature rise value of the target motor corresponding to the rated excitation current, RZS3 and DZS3 respectively represent the stator winding temperature rise value and the stator core temperature rise value of the target motor corresponding to the rated armature current; Step S33, adding and averaging the stator winding temperature rise values ​​of the target motor under different states to obtain the winding average temperature rise value RZSP, and adding and averaging the stator core temperature rise values ​​of the target motor under different states to obtain the core average temperature rise value TXSP corresponding to the target motor; Step S34, obtaining the actual temperature rise value of the winding and the actual temperature rise value of the core of the target motor through an empirical formula, wherein the empirical formula of the actual temperature rise value of the winding is specifically: ; In the formula, PFe refers to the difference between the winding loss rate corresponding to the rated voltage and the winding loss rate corresponding to the low-power load voltage, PCua refers to the winding loss rate corresponding to the low-power load voltage, and K is an empirical coefficient. Specifically, for small motors, K is 6, and for medium-sized motors, K is 3; It should be additionally explained that the low-power load voltage refers to the voltage corresponding to the lowest power at which the target motor can operate stably; The empirical formula for the actual temperature rise of the core is: ; In the formula, PF is the iron loss rate at rated voltage; Step S4, calculating the excellent value of the corresponding test part of the target motor, and determining the anti-drop capability of the corresponding test part; Step S41, obtaining the actual core temperature rise value TXS and the actual winding temperature rise value RZS of the target motor, and obtaining the drop crack length DLC, drop weight difference DZC and drop test number DCS corresponding to the target motor; It should be specifically noted that the drop crack length and drop weight difference are the maximum values ​​of the corresponding test parts of the target motor during the drop test; Step S42, calculating the part excellence value of the target motor corresponding to the test part by a formula, the specific formula is as follows: ; In the formula, YDC is the preset test quantity, e is a natural constant, λ is the compensation amount of the weight block, 0≤λ<3, the greater the weight of the weight block, the greater the value of λ, when no weight block is added, the value of λ is 0; A1 and A2 are fixed numerical proportional coefficients, and the values ​​of A1 and A2 are both greater than 0; Step S43, if the part excellent value is greater than or equal to the first part excellent threshold, the anti-drop level of the corresponding test part of the target motor is recorded as first-level anti-drop level; If the excellent value of a part is less than the excellent threshold of the first part and greater than or equal to the excellent threshold of the second part, the drop resistance level of the corresponding test part of the target motor is recorded as level 2 drop resistance; If the excellent value of a part is less than the excellent threshold of the second part, the drop resistance level of the corresponding test part of the target motor is recorded as level 3 drop resistance, and the excellent threshold of the first part is greater than the excellent threshold of the second part; Among them, the anti-drop ability of the corresponding part of the third-level anti-drop is less than the anti-drop ability of the corresponding part of the second-level anti-drop, and the anti-drop ability of the corresponding part of the second-level anti-drop is less than the anti-drop ability of the corresponding part of the first-level anti-drop; Step S5, selecting another target motor and repeating the above steps until all target motors to be tested are tested, and the test results are sent to the display terminal. The user can view the corresponding test results through the display terminal to learn the anti-drop capabilities of different test parts of the target motor;

[0020] In this application, if corresponding calculation formulas appear, the above calculation formulas are all dimensionless and take their numerical calculations. The weight coefficients, proportional coefficients and other coefficients in the formulas are set to a result value obtained by quantifying each parameter. The size of the weight coefficient and the proportional coefficient can be determined as long as it does not affect the proportional relationship between the parameter and the result value.

[0021] Embodiment 2: Another conception based on the same invention, such as Figure 3 As shown, a motor drop test device for motor processing is now proposed, including a data acquisition module, a preliminary analysis module, a test terminal, a data analysis module and a display terminal; A data acquisition module, used to acquire historical fault information corresponding to the target motor, wherein the historical fault information specifically includes the sales volume of the same model of motors as the target motor in the previous quarter, and the part repair volume of the test parts in the sold motors of the same model as the target motor, where the part repair volume is the number of cracks or dents on the surface of the test parts in the motors of the same model as the target motor; A preliminary analysis module is used to obtain the test parameters of the corresponding test parts of the target motor based on historical fault information analysis; Among them, the analysis process of the preliminary analysis module is specifically as follows: Obtain historical fault information corresponding to the target motor, obtain the sales volume of motors of the same model as the target motor in the previous quarter, and the part maintenance volume of the test parts in the motors of the same model as the target motor sold, divide the part maintenance volume of different test parts by the sales volume to obtain the part maintenance rate of different test parts of the target motor in the previous quarter, if the part maintenance rate of all test parts is less than the first fault threshold, then the test level of all test parts corresponding to the target motor is the first test level, if the part maintenance rate of any test part is greater than or equal to the first fault threshold and less than the second fault threshold, then the test part corresponding to the target motor is the second test level, if the part maintenance rate of any test part is greater than or equal to the second fault threshold, then the test part corresponding to the target motor is the third test level, set the test parameters corresponding to the target motor according to the test level, and send the test parameters corresponding to the test part corresponding to the target motor to the test terminal; A test terminal, used to perform a drop test on a corresponding test part of a target motor according to test parameters; In this embodiment, the working process of the test terminal is: The test process of the drop test is as follows: First, obtain the drop test height and preset test quantity corresponding to the test part of the target motor, add a weight block to the test part of the target motor so that the center of gravity of the target motor is located on the test part, and then raise the target motor to the drop test height. During the test, release the target motor and make it fall freely with the test part facing downward. If cracks appear on the surface of the target motor or the weight of the target motor decreases after falling, the crack length of the crack on the surface of the target motor and the weight of the target motor after falling are recorded, and the crack lengths of all cracks on the surface of the target motor are added together to obtain the corresponding drop crack length of the target motor. The drop weight difference corresponding to the target motor is obtained by subtracting the weight of the target motor after falling from the initial weight of the target motor. If no cracks appear on the surface of the target motor and the weight of the target motor does not change after falling, the drop crack length and the drop weight difference are determined. When the drop crack length corresponding to the target motor is greater than or equal to the crack length threshold or the drop weight difference corresponding to the target motor is greater than or equal to the drop weight threshold, the repeated execution of the operation is terminated and the drop test number of the current drop test is recorded. When the drop crack length corresponding to the target motor is less than the crack length threshold and the drop weight difference corresponding to the target motor is less than the drop weight threshold, the above steps are repeated until the number of tests of the target motor reaches the preset test number. After the corresponding test part of the target motor undergoes a drop test, if the target motor cannot be started, the drop test result of the test part in the target motor is considered unqualified. If the target motor is successfully started, the target motor is run for a period of time to determine whether abnormal vibration occurs during the operation of the target motor. If abnormal vibration occurs, the drop test result of the test part in the target motor is considered unqualified. If no abnormal vibration occurs, proceed to the next step. The data analysis module is used to perform a performance test on the target motor after the drop test, and obtain the actual temperature rise values ​​of the core and the winding of the target motor. It is also used to analyze and obtain the anti-drop capability of the corresponding test parts of the target motor; In this embodiment, the analysis process of the data analysis module is specifically as follows: Start the target motor and make it run under three states: rated power, rated excitation current and rated armature current. Record the stator winding temperature rise value and stator core temperature rise value of the target motor under different states. Add and average the stator winding temperature rise values ​​of the target motor under different states to obtain the average winding temperature rise value. Add and average the stator core temperature rise values ​​of the target motor under different states to obtain the corresponding average core temperature rise value of the target motor. Then calculate the actual winding temperature rise value and the actual core temperature rise value of the target motor. Based on the actual temperature rise values ​​of the core and the winding of the target motor, as well as the drop crack length, drop weight difference and number of drop tests corresponding to the target motor, the excellent value of the corresponding test part of the target motor is calculated, and the excellent value of the part is compared with the excellent threshold of the part to determine whether the drop resistance level of the corresponding test part of the target motor is level one, level two or level three. A display terminal is used to display the anti-drop capability of the corresponding test part of the target motor; Embodiment three: Figure 4 The following is a schematic diagram of the physical structure of a computer device, such as Figure 4As shown, the computer device may include: a processor, a communication interface, a memory, and a communication bus, wherein the processor, the communication interface, and the memory communicate with each other through the communication bus. The processor may call the logic instructions in the memory to execute the motor drop test method for motor processing, the method comprising: dividing the target motor into a plurality of test parts, and initially analyzing the target motor, and then setting the test parameters corresponding to the test parts in the target motor, the test terminal performs a drop test on the target motor according to the test parameters, and performs a performance test on the target motor after the drop test, and obtains the actual temperature rise value of the core and the actual temperature rise value of the winding of the target motor, calculates the part excellent value of the corresponding test part of the target motor and determines the anti-drop ability of the corresponding test part, selects another target motor and repeats the above steps until all the target motors to be tested are tested, and the test results are sent to the display terminal, and the test results are viewed through the display terminal.

[0022] In addition, the logic instructions in the above-mentioned memory can be implemented in the form of software functional units and can be stored in a computer-readable storage medium when sold or used as an independent product. Based on this understanding, the technical solution of the present application can be essentially or partly embodied in the form of a software product that contributes to the prior art. The computer software product is stored in a storage medium, including several instructions to enable a computer device (which can be a personal computer, server, or network device, etc.) to execute all or part of the steps of the method described in each embodiment of the present application. The aforementioned storage medium includes: U disk, mobile hard disk, read-only memory (ROM, Read-Only Memory), random access memory (RAM, Random Access Memory), disk or optical disk, etc. Various media that can store program codes.

[0023] On the other hand, the present application also provides a computer program product, which includes a computer program stored on a computer-readable storage medium, and the computer program includes program instructions. When the program instructions are executed by a computer, the computer can execute the motor drop test method for motor processing provided by the above methods, the method including: dividing the target motor into multiple test parts, and initially analyzing the target motor, and then setting the test parameters corresponding to the test parts in the target motor, the test terminal performs a drop test on the target motor according to the test parameters, and performs a performance test on the target motor after the drop test to obtain the actual temperature rise value of the core and the actual temperature rise value of the winding of the target motor, calculate the part excellent value of the corresponding test part of the target motor and determine the drop resistance of the corresponding test part, select another target motor to repeat the above steps until all target motors that need to be tested are tested. Send the test results to the display terminal, and view the test results through the display terminal.

[0024] On the other hand, the present application also provides a computer-readable storage medium having a computer program stored thereon, which, when executed by a processor, is implemented to execute the above-mentioned motor drop test method for motor processing, the method comprising: dividing the target motor into multiple test parts, and initially analyzing the target motor, and then setting test parameters corresponding to the test parts in the target motor, the test terminal performing a drop test on the target motor according to the test parameters, performing a performance test on the target motor after the drop test, obtaining the actual temperature rise value of the core and the actual temperature rise value of the winding of the target motor, calculating the part excellent value of the corresponding test part of the target motor and determining the drop resistance of the corresponding test part, selecting another target motor to repeat the above steps until all target motors that need to be tested are tested are completed, sending the test results to the display terminal, and viewing the test results through the display terminal.

[0025] The device embodiments described above are merely illustrative, wherein the units described as separate components may or may not be physically separated, and the components displayed as units may or may not be physical units, that is, they may be located in one place, or they may be distributed on multiple network units. Some or all of the modules may be selected according to actual needs to achieve the purpose of the scheme of this embodiment. Ordinary technicians in this field can understand and implement it without paying creative labor.

[0026] Through the description of the above implementation methods, those skilled in the art can clearly understand that each implementation method can be implemented by means of software plus a necessary general hardware platform, and of course, can also be implemented by hardware. Based on this understanding, the above technical solution is essentially or the part that contributes to the prior art can be embodied in the form of a software product, and the computer software product can be stored in a computer-readable storage medium, such as ROM / RAM, a disk, an optical disk, etc., including a number of instructions for a computer device (which can be a personal computer, a server, or a network device, etc.) to execute the methods described in each embodiment or some parts of the embodiments.

[0027] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present application, rather than to limit it. Although the present application has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some of the technical features therein. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the embodiments of the present application.

Claims

1. A motor drop test method for motor processing, characterized in that: The motor drop test method is as follows: Step S1, dividing the target motor into a plurality of test parts, and initially analyzing the target motor, and then setting test parameters corresponding to the test parts in the target motor; Step S2, the test terminal performs a drop test on the target motor according to the test parameters; Step S3, performing a performance test on the target motor after the drop test to obtain an actual temperature rise value of the core and an actual temperature rise value of the winding of the target motor; Step S4, calculating the excellent value of the corresponding test part of the target motor, and determining the anti-drop capability of the corresponding test part; Step S5, selecting another target motor and repeating the above steps until all target motors that need to be tested are tested, and the test results are sent to the display terminal for display.

2. The motor drop test method for motor processing according to claim 1, characterized in that: The step S1 includes the following sub-steps: Step S11, obtaining historical fault information corresponding to the target motor; Step S12, dividing the maintenance amount of different test parts by the sales amount to obtain the maintenance rate of different test parts of the target motor in the previous quarter; Step S13, if the part maintenance rates of all test parts are less than the first fault threshold, the test levels of all test parts corresponding to the target motor are all set to the first test level; if the part maintenance rate of any test part is greater than or equal to the first fault threshold and less than the second fault threshold, the test part corresponding to the target motor is set to the second test level; if the part maintenance rate of any test part is greater than or equal to the second fault threshold, the test part corresponding to the target motor is set to the third test level; Among them, the first fault threshold is lower than the second fault threshold, the level of the first test level is lower than the level of the second test level, and the level of the second test level is lower than the level of the third test level. It can be understood that the test intensity of the first test level is lower than the test intensity of the second test level, and the test intensity of the second test level is lower than the test intensity of the third test level; Step S14, setting the test parameters corresponding to the target motor according to the test level; The test parameters are a drop test height and a preset test number of the target motor, wherein the drop test height of the first test level is lower than the drop test height of the second test level, the drop test height of the second test level is lower than the drop test height of the third test level, the preset test number of the first test level is less than the preset test number of the second test level, and the preset test number of the second test level is less than the preset test number of the third test level; Step S15, sending the test parameters corresponding to the test parts of the target motor to the test terminal.

3. The motor drop test method for motor processing according to claim 2, characterized in that: The historical fault information specifically includes the sales volume of motors of the same model as the target motor in the previous quarter, and the part repair volume of the test parts in the motors of the same model as the target motor sold, where the part repair volume corresponds to the number of cracks or dents on the surface of the test parts in the motors of the same model as the target motor.

4. The motor drop test method for motor processing according to claim 1, characterized in that: The test process of the drop test is as follows: Step S21, obtaining the drop test height and preset test quantity corresponding to the test part in the target motor; Step S22, adding a weight block to the test part of the target motor so that the center of gravity of the target motor is located on the test part, and then raising the target motor to a drop test height; Step S23, releasing the target motor, allowing the target motor to freely fall with the test part facing downward. If no cracks appear on the surface of the target motor and the weight of the target motor does not change after falling, directly executing step S25; if cracks appear on the surface of the target motor or the weight of the target motor decreases after falling, then recording the crack length of the crack on the surface of the target motor and the weight of the target motor after falling and proceeding to the next step; Step S24, adding the crack lengths of all cracks on the surface of the target motor to obtain the drop crack length corresponding to the target motor, and subtracting the weight of the target motor after the drop from the initial weight of the target motor to obtain the drop weight difference corresponding to the target motor; Step S25, if the drop crack length corresponding to the target motor is greater than or equal to the crack length threshold or the drop weight difference corresponding to the target motor is greater than or equal to the drop weight threshold, then the repeated execution of the operation is terminated and the drop test number of the current drop test is recorded; if the drop crack length corresponding to the target motor is less than the crack length threshold and the drop weight difference corresponding to the target motor is less than the drop weight threshold, then the above steps are repeated until the number of tests of the target motor reaches the preset test number; Step S26, if the target motor cannot be started, the drop test result of the test part in the target motor is regarded as unqualified; If the target motor is successfully started, the target motor is run for a period of time to determine whether abnormal vibration occurs during the operation of the target motor. If abnormal vibration occurs, the drop test result of the test part in the target motor is unqualified. If no abnormal vibration occurs, proceed to the next step.

5. The motor drop test method for motor processing according to claim 4, characterized in that: The determination process of abnormal vibration is as follows: Step S261, obtaining a test sound wave of the target motor when it is running, and importing the test sound wave into an audio analysis software to obtain a test sound wave graph corresponding to the test sound wave of the target motor; Step S262, comparing the test sound wave graph of the target motor when it is running with a plurality of preset vibration sound wave graphs, if the test sound wave graph of the target motor when it is running matches any one of the preset vibration sound wave graphs, it is determined that the target motor has abnormal vibration; Step S263, if the test sound wave graph of the target motor during operation does not match the preset vibration sound wave graph, it is determined that the target motor does not have abnormal vibration; The test sound wave graph is overlapped with the preset vibration sound wave graph. If there is an overlapping area between the test sound wave graph and the preset vibration sound wave graph and the area of ​​the overlapping area exceeds the preset area, the test sound wave graph is determined to match the preset vibration sound wave graph. If there is no overlapping area between the test sound wave graph and the preset vibration sound wave graph, or if there is an overlapping area between the test sound wave graph and the preset vibration sound wave graph but the area of ​​the overlapping area does not exceed the preset area, the test sound wave graph is determined to not match the preset vibration sound wave graph.

6. The motor drop test method for motor processing according to claim 5, characterized in that: The step S3 specifically includes the following sub-steps: Step S31, starting the target motor, and making the target motor operate under three states: rated power, rated excitation current and rated armature current; Step S32, recording the stator winding temperature rise value and the stator core temperature rise value of the target motor under different states; Step S33, adding and averaging the stator winding temperature rise values ​​of the target motor under different states to obtain the winding average temperature rise value RZSP, and adding and averaging the stator core temperature rise values ​​of the target motor under different states to obtain the core average temperature rise value TXSP corresponding to the target motor; Step S34, obtaining the actual winding temperature rise value RZS and the actual core temperature rise value TXS of the target motor through an empirical formula; Among them, the empirical formula for the actual temperature rise value of the winding is: ; In the formula, PFe refers to the difference between the winding loss rate corresponding to the rated voltage and the winding loss rate corresponding to the low power load voltage, PCua refers to the winding loss rate corresponding to the low power load voltage, and K is the empirical coefficient; Among them, the empirical formula for the actual temperature rise of the core is: ; Where PF is the iron loss rate at rated voltage.

7. The motor drop test method for motor processing according to claim 1, characterized in that: The step S4 includes the following sub-steps: Step S41, obtaining the actual core temperature rise value TXS and the actual winding temperature rise value RZS of the target motor, and obtaining the drop crack length DLC, drop weight difference DZC and drop test number DCS corresponding to the target motor; Step S42, calculating the part excellence value of the target motor corresponding to the test part by a formula, the formula is as follows: ; In the formula, YDC is the preset test quantity, e is a natural constant, λ is the compensation amount of the weight block, 0≤λ<3, the greater the weight of the weight block, the greater the value of λ, when no weight block is added, the value of λ is 0; A1 and A2 are fixed numerical proportional coefficients, and the values ​​of A1 and A2 are both greater than 0; Step S43, if the part excellent value is greater than or equal to the first part excellent threshold, the anti-drop level of the corresponding test part of the target motor is recorded as first-level anti-drop level; If the excellent value of a part is less than the excellent threshold of the first part and is greater than or equal to the excellent threshold of the second part, the drop resistance level of the corresponding test part of the target motor is recorded as level 2 drop resistance; If the excellent value of a part is less than the excellent threshold of the second part, the drop resistance level of the corresponding test part of the target motor is recorded as level 3 drop resistance, and the excellent threshold of the first part is greater than the excellent threshold of the second part; Among them, the anti-drop capacity of the corresponding part of the third-level anti-drop is less than the anti-drop capacity of the corresponding part of the second-level anti-drop, and the anti-drop capacity of the corresponding part of the second-level anti-drop is less than the anti-drop capacity of the corresponding part of the first-level anti-drop.

8. A motor drop test device for motor processing, characterized in that: include: A data acquisition module, used to acquire historical fault information corresponding to the target motor; A preliminary analysis module is used to obtain the test parameters of the corresponding test parts of the target motor based on historical fault information analysis; A test terminal, used to perform a drop test on a corresponding test part of a target motor according to test parameters; The data analysis module is used to perform a performance test on the target motor after the drop test, and obtain the actual temperature rise values ​​of the core and the winding of the target motor. It is also used to analyze and obtain the anti-drop capability of the corresponding test parts of the target motor; The display terminal is used to display the anti-drop capability of the corresponding test part of the target motor.

9. A computer device, characterized in that: The computer device comprises: A memory storing a computer program; A processor is communicatively connected to the memory, and when the computer program is executed by the processor, the method described in any one of claims 1 to 7 is implemented.

10. A computer-readable storage medium having a computer program stored thereon, characterized in that: When the program is executed by a processor, the method described in any one of claims 1 to 7 is implemented.

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