Test method applied to bright-sun variable-pitch system tool

Abstract

The invention provides a test method applied to a bright-sun variable pitch system tool, and relates to the technical field of bright-sun variable pitch system tool testing, which comprises a tool appearance inspection system, an electrical system detection system, a functional test system and a durability test unit. The testing method applied to the bright-sun variable pitch system tool specifically comprises the following steps that S1, in the tool appearance inspection step, inspection personnel should have rich machining and assembling experience, through arrangement of a durability testing unit, the tool is subjected to deep testing in the testing process, and in the durability testing, the durability of the tool is improved; a variable-pitch load simulation sequence under different wind speed profiles is set, for example, according to the wind speed distribution probability of a standard wind power plant, continuous variable-pitch operation from a low wind speed (3-5 m / s) to a high wind speed (20-25 m / s) is simulated, and the duration of each wind speed section is determined according to actual operation data statistics.

Description

Technical Field

[0001] The present invention relates to the technical field of Mingyang variable pitch system tooling testing, and in particular to a testing method applied to Mingyang variable pitch system tooling. Background Art

[0002] Mingyang variable pitch system tooling plays a pivotal role in the production and maintenance of wind power equipment. In the production of wind power equipment, it can accurately process various components of the variable pitch system, such as blades and hubs, to sizes and shapes that meet strict standards by relying on high-precision processing technology. In the assembly process, the tooling can skillfully guide each component to be accurately positioned and tightly connected to ensure that the entire variable pitch system has a stable structure and reliable performance. In the debugging stage, the various parameters of the variable pitch system can be meticulously adjusted and optimized to ensure that it can play an efficient and stable role in actual operation, which effectively promotes the improvement of the overall quality and stable operation of wind power equipment.

[0003] However, the current testing methods for the Mingyang variable pitch system tooling do have a lot of room for improvement. Take the testing process, for example, which often presents a disordered state and lacks a complete and rigorous systematic process. From the initial inspection of the tooling appearance, to the detailed inspection of the electrical system, to the in-depth evaluation of the mechanical properties, each link has failed to form a close and efficient connection mechanism. This is like a loose chain, with each link acting independently and unable to work together. This situation directly leads to the slow progress of the entire testing work and greatly reduces efficiency. A lot of time is spent on link conversion, repeated operations, and troubleshooting, which seriously affects the production progress and quality control of the Mingyang variable pitch system tooling, increases unnecessary time and labor costs, and also lays potential risks for the subsequent stable operation of wind power equipment.

[0004] Moreover, there are deficiencies in test accuracy, making it difficult to accurately measure and evaluate the performance indicators of the tooling, which may cause some tooling with potential problems to be put into use, thereby affecting the overall quality and reliability of the variable pitch system, increasing the risk of wind power equipment operation, and also increasing production costs due to frequent maintenance and replacement of tooling;

[0005] Therefore, the present invention proposes a testing method applied to Mingyang variable pitch system tooling. Summary of the invention

[0006] The purpose of the present invention is to solve the shortcomings of the prior art and to provide a testing method for Mingyang variable pitch system tooling.

[0007] In order to achieve the above-mentioned purpose, the present invention adopts the following technical scheme: a testing method applied to Mingyang variable pitch system tooling, including a tooling appearance inspection system, an electrical system detection system, a functional testing system and a durability testing unit.

[0008] The test method applied to the Mingyang pitch system tooling specifically includes the following steps:

[0009] S1. During the tooling appearance inspection step, the inspectors should have extensive experience in machining and assembly, and be able to accurately determine the damage and deformation of tooling components. Problems found during the appearance inspection should be photographed and recorded in a timely manner, and classified according to pre-established defect classification standards for subsequent repair and processing.

[0010] S2. In the electrical system inspection process, insulation resistance testers and circuit continuity testers should be calibrated regularly to ensure the accuracy of test data. When conducting insulation resistance tests, electrical safety operating procedures should be followed to isolate the work equipment from other electrical equipment to prevent electric shock accidents during the test. For electrical circuit connectivity tests, a detailed test circuit diagram should be drawn up and tests should be carried out in sequence according to the circuit diagram to avoid omissions.

[0011] S3. In the functional test, the components of the simulated pitch system should have similar performance and parameters to those of the actual pitch system. The control system should have complete monitoring and alarm functions to promptly detect abnormal conditions during the simulated pitch process. When testing the stability of the tooling, the installation position of the vibration sensor should be selected at the key parts of the tooling, such as the supporting structure, transmission mechanism, etc., to accurately reflect the vibration conditions of the tooling.

[0012] S4. The durability test platform should be able to simulate various actual working conditions, such as being able to accurately control the changes in parameters such as temperature, humidity, and load. During the durability test, a dedicated person should be arranged to regularly inspect the tooling to promptly discover and record any problems with the tooling. After the test, the test data should be deeply analyzed to summarize the tooling's performance in terms of durability, providing valuable reference for the tooling's improvement.

[0013] As a preferred embodiment, the tooling appearance inspection system includes an appearance inspection unit for inspecting various parts of the tooling, and an environment simulation inspection unit for use of tooling parts in different environments.

[0014] The beneficial effects of adopting the above further scheme are: through the setting of the appearance inspection unit, it is used to check whether the various components of the tooling are obviously damaged, deformed or missing, such as whether the metal frame of the tooling has cracks, whether the welding parts are firm, whether various clamps and positioning devices are complete and can work normally; through the setting of the environmental simulation inspection unit, it is used to evaluate the corrosion resistance of the tooling in harsh environments, and improve the material selection, surface treatment process and other aspects of the tooling according to the test results.

[0015] As a preferred implementation, the appearance inspection unit includes an ultrasonic flaw detector, a magnetic particle flaw detector, a surface roughness measuring instrument and a coating thickness gauge.

[0016] The beneficial effect of adopting the above further scheme is: under the action of the ultrasonic flaw detector or the magnetic particle flaw detector, the ultrasonic flaw detector can detect whether there are hidden cracks or defects inside the frame, and the magnetic particle flaw detector can detect surface and near-surface cracks and other defects without damaging the surface of the component. Especially for some welding parts, these tools can effectively discover potential safety hazards and ensure the structural strength and stability of the tooling. Under the action of the surface roughness measuring instrument, by measuring the surface roughness, it can be determined whether these surfaces are worn due to long-term use, resulting in a decrease in surface quality, which in turn affects the positioning accuracy and assembly quality of the pitch system components. If the measured value exceeds the specified roughness range, the corresponding surface needs to be repaired or reprocessed. Under the action of the coating thickness gauge, the thickness of the coating on the surface of the tooling can be measured regularly, and the situation of insufficient coating thickness can be discovered in time, and corresponding measures can be taken, such as re-coating, to extend the service life of the tooling and prevent the tooling from being damaged in appearance and degraded in performance due to corrosion and other reasons.

[0017] As a preferred implementation, the environmental simulation detection unit includes a salt spray test chamber and a high and low temperature test chamber.

[0018] The beneficial effect of adopting the above further scheme is: under the action of the salt spray test chamber, the corrosion resistance of the tooling is simulated and tested. Some samples or key components of the tooling are placed in the salt spray test chamber, and the salt spray concentration, temperature, time and other parameters are set according to relevant standards. After a certain period of testing, the samples are taken out to observe the changes in their appearance, such as whether rust, coating peeling and other phenomena occur. Under the action of the high and low temperature test chamber, this temperature change environment can be simulated, the tooling is placed in the chamber, and different high and low temperature cycle programs are set, such as temperature cycles from -40°C to +60°C. During the test, observe whether the parts of the tooling will be deformed, cracked, loosened, etc. due to thermal expansion and contraction.

[0019] As a preferred embodiment, the electrical system detection system includes an environmental control unit, a test unit and a post-test processing unit. The environmental control unit includes an insulation resistance test area and a dust particle counter. The test unit includes an insulation resistance tester. The insulation resistance tester includes data storage, transmission functions, multi-voltage testing, dynamic detection and data analysis. The post-test processing unit includes discharge processing and result evaluation.

[0020] The beneficial effect of adopting the above further scheme is: under the action of the environmental control unit, the humidity control equipment equipped in the insulation resistance test area ensures that the test environment temperature is stable at 23℃±5℃, and the relative humidity is controlled at 40%-60%. Because temperature and humidity have a significant impact on the insulation resistance value, excessive humidity may cause water film to form on the surface of the insulating material, reducing the insulation resistance, and too high or too low temperature will cause the physical properties of the insulating material to change, affecting the test accuracy. Further, under the action of the dust particle counter, the dust content in the air is measured to ensure the cleanliness of the test environment. Dust particles may adhere to the surface of the tooling or enter the electrical connection part, affecting the insulation performance test results, requiring the test environment The number of dust particles in the environment does not exceed a certain standard (such as no more than 100,000 particles with a diameter greater than 0.5 microns per cubic meter). At the same time, a high-precision insulation resistance tester is used. This high-precision tester can measure low and high resistance values ​​more accurately, and adapt to the testing needs of Mingyang variable pitch system tooling at different voltage levels. The automatic calibration function ensures that the tester can achieve accurate measurement status before each use, reducing measurement errors. The tester should have data storage and transmission functions, which can automatically store the data of each test in the internal memory, and transmit the data to the computer through the USB interface or wireless transmission module for further analysis and management, so that the tooling insulation can be easily established. The resistance test database is convenient for tracking the changing trend of the insulation performance of the tooling. Further, through multi-voltage point testing, the rated working voltage of the tooling electrical system, 1.2 times the maximum working voltage, and 0.8 times the minimum working voltage are selected for insulation resistance testing. In addition, through multi-dynamic detection, during the entire test process, the real-time monitoring function of the insulation resistance tester is used to continuously monitor the insulation resistance value, and the monitoring data is transmitted to the computer. The computer software analyzes the monitoring data in real time and draws a curve of the insulation resistance value changing with time. Finally, through data analysis, a statistical analysis model for the insulation resistance test data is established, and the average value of the insulation resistance is calculated based on the data of multiple tests. , standard deviation and other statistical parameters. By comparing the statistical parameters of different batches of tooling, the consistency and stability of the tooling's insulation performance are evaluated. When the test is completed, a special discharge device is used to discharge the tooling to safely release the charge accumulated inside the tooling. The discharge time is not less than 3 minutes. Through result evaluation, detailed insulation resistance test result evaluation standards are formulated. According to the different application scenarios and safety requirements of Mingyang variable pitch system tooling, different qualified insulation resistance value ranges are set. For example, for the high-voltage electrical part, the insulation resistance value should not be less than 100 megohms, and for the low-voltage electrical part, the insulation resistance value should not be less than 5 megohms. The test results are compared with the evaluation standards to determine whether the insulation performance of the tooling is qualified.

[0021] As a preferred implementation, the functional test system includes a vibrator sensor unit and a simulated pitch action test unit, and the simulated pitch action test unit includes a pitch motor, a reducer and a blade model.

[0022] The beneficial effect of adopting the above further scheme is: under the action of the simulated pitch action test unit, according to the actual working principle of the Mingyang pitch system, the components of the simulated pitch system, such as the pitch motor, reducer, blade model, etc., are installed on the tooling, and then the pitch motor is driven by the control system to simulate the pitch action of the pitch system, and further under the action of the vibration sensor unit, the overall vibration of the tooling is detected. The vibration frequency, amplitude and other parameters of the tooling at different working stages are recorded and compared with the stability standard.

[0023] As a preferred implementation, the durability test unit includes dynamic simulation of variable pitch load, application of multi-axis composite load and optimization of environmental simulation test.

[0024] The beneficial effect of adopting the above further scheme is: under the action of the durability test unit, a long-term operation test is carried out according to a pre-set durability test cycle program. During the test, various working conditions that the variable pitch system tooling may encounter in the actual working environment are simulated, such as different load changes, temperature changes, humidity changes, etc. The tooling is regularly inspected and the changes in various performance indicators of the tooling are recorded, such as the attenuation of accuracy, the reliability of the electrical system, etc. According to the durability test results, the service life and reliability of the tooling are evaluated to provide a basis for the maintenance, update and design improvement of the tooling. If a serious fault or a sharp drop in performance indicators of the tooling is found during the durability test, the cause of the fault is analyzed, and the weak links of the tooling are improved and optimized to improve the durability and reliability of the tooling. Under the action of multi-axis composite load application, a multi-axis load simulation device is designed. In addition to simulating the main load in the variable pitch direction, it can also simultaneously apply lateral loads and axial loads perpendicular to the variable pitch axis to simulate the durability of the tooling under complex stress conditions.

[0025] As a preferred implementation manner, the pitch load dynamic simulation is electrically connected to a pitch action simulation test unit.

[0026] The beneficial effect of adopting the above further scheme is: further under the action of dynamic simulation of pitch load, a high-precision pitch load simulation system is developed, which can accurately reproduce the various load change curves of the Mingyang pitch system in actual operation, including high-torque impact load at startup (simulating the resistance of the blade from static to rotation), constant load during stable operation (set according to the force conditions of the blades under different wind speeds) and reverse load during braking (simulating the braking force when the blades stop rotating). The load change frequency can be adjusted between 0.1 Hz and 10 Hz to cover various dynamic working conditions that the Mingyang pitch system may encounter.

[0027] As a preferred implementation, the ring simulation test optimization is electrically connected to the environmental simulation detection unit.

[0028] The beneficial effect of adopting the above further scheme is: under the effect of environmental simulation test optimization, a high-precision temperature and humidity control system is adopted, which can accurately set and maintain the temperature at any value between -40℃ and +80℃, and the humidity at any level between 20% and 95%. During the test, the temperature and humidity are dynamically adjusted according to the environmental condition change curve that the Mingyang variable pitch system may actually encounter. For example, when simulating the seaside environment, the temperature is set to change periodically between 10℃ and 35℃, and the humidity fluctuates between 70% and 90%; when simulating the desert environment, the temperature changes greatly between 30℃ and 60℃, and the humidity is maintained at a low level of 20% to 30%.

[0029] Compared with the prior art, the advantages and positive effects of the present invention are:

[0030] 1. In the present invention, the durability test unit is set up so that the tooling is deeply tested during the test. In the durability test, a variable pitch load simulation sequence is set up under different wind speed profiles. For example, according to the wind speed distribution probability of a standard wind farm, the continuous variable pitch operation from low wind speed (3 m / s to 5 m / s) to high wind speed (20 m / s to 25 m / s) is simulated. The duration of each wind speed segment is determined according to the actual operation data statistics. The cumulative number of test cycles is not less than 1 million times. In the test process, the stress conditions of key parts of the tooling are monitored in real time, and compared and analyzed with the theoretical design values ​​to promptly discover potential fatigue damage points. In addition, a random vibration test under multi-axis composite load is performed. According to the frequency spectrum and amplitude distribution of blade vibration in an actual wind farm, a random vibration signal is generated and superimposed on the multi-axis composite load to further test the structural strength and connection reliability of the tooling under a vibration environment. The vibration frequency range is from 5 Hz to 200 Hz, the acceleration amplitude is from 0.1g to 5g, the test duration is not less than 500 hours, and during the test, the key welds and bolted joints of the tooling are regularly subjected to non-destructive testing, such as ultrasonic flaw detection and bolt preload detection, to ensure structural integrity. At the same time, the salt spray test device is upgraded. In addition to the conventional neutral salt spray test, acid salt spray (pH 3-4) and alkaline salt spray (pH 8-9) test functions are added to simulate marine environments or industrial pollution areas with different degrees of pollution. The salt spray deposition can be accurately adjusted between 0.5 ml / hour and 5 ml / hour, and the test duration ranges from 24 hours to 1000 hours. The specific duration is determined according to the severity of the tooling application scenario, and the changes in temperature and humidity during the salt spray test further increase the complexity of the environmental simulation, thereby improving the accuracy of the tooling test results.

[0031] 2. In the present invention, under the action of the environmental control unit, the humidity regulating device equipped in the insulation resistance test area is used to ensure that the test environment temperature is stable at 23°C ± 5°C and the relative humidity is controlled at 40%-60%. Because temperature and humidity have a significant impact on the insulation resistance value, excessive humidity may cause a water film to form on the surface of the insulating material, reducing the insulation resistance, and excessively high or low temperature may cause the physical properties of the insulating material to change, affecting the test accuracy. Further, under the action of the dust particle counter, the dust content in the air is measured to ensure the cleanliness of the test environment. Dust particles may adhere to the surface of the tooling or enter the electrical connection part, affecting the insulation performance test results. It is required that the dust particles in the test environment The number of particles does not exceed a certain standard (such as no more than 100,000 particles with a particle size greater than 0.5 microns per cubic meter). At the same time, a high-precision insulation resistance tester is used. This high-precision tester can more accurately measure low and high resistance values, and adapt to the testing needs of Mingyang variable pitch system tooling at different voltage levels. The automatic calibration function ensures that the tester can achieve accurate measurement status before each use, reducing measurement errors. The tester should have data storage and transmission functions, which can automatically store the data of each test in the internal memory, and transmit the data to the computer through the USB interface or wireless transmission module for further analysis and management, so that the tooling insulation resistance test can be easily established. The database is used to track the changing trend of the insulation performance of the tooling. Further, through multi-voltage point testing, the rated working voltage of the tooling electrical system, 1.2 times the maximum working voltage, and 0.8 times the minimum working voltage are selected for insulation resistance testing. In addition, through multi-dynamic detection, during the entire test process, the real-time monitoring function of the insulation resistance tester is used to continuously monitor the insulation resistance value, and the monitoring data is transmitted to the computer. The computer software analyzes the monitoring data in real time and draws a curve of the insulation resistance value changing with time. Finally, through data analysis, a statistical analysis model for the insulation resistance test data is established. According to the data of multiple tests, the average value and standard deviation of the insulation resistance are calculated. By comparing the statistical parameters of different batches of tooling, the consistency and stability of the tooling's insulation performance are evaluated. After the test is completed, a special discharge device is used to discharge the tooling to safely release the charge accumulated inside the tooling. The discharge time is not less than 3 minutes. Through the result evaluation, detailed insulation resistance test result evaluation standards are formulated. According to the different application scenarios and safety requirements of Mingyang variable pitch system tooling, different qualified insulation resistance value ranges are set. For example, for the high-voltage electrical part, the insulation resistance value should not be less than 100 megohms, and for the low-voltage electrical part, the insulation resistance value should not be less than 5 megohms. The test results are compared with the evaluation standards to determine whether the insulation performance of the tooling is qualified. BRIEF DESCRIPTION OF THE DRAWINGS

[0032] Figure 1It is a flowchart of a testing method for Mingyang pitch system tooling according to the present invention;

[0033] Figure 2 It is a flowchart of an electrical system monitoring system in a testing method for a Mingyang pitch system tooling according to the present invention;

[0034] Figure 3 The present invention is a flow chart of a testing method applied to Mingyang variable pitch system tooling. DETAILED DESCRIPTION

[0035] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not 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.

[0036] like Figure 1-3 As shown, the present invention provides a technical solution: a testing method applied to Mingyang variable pitch system tooling, including a tooling appearance inspection system, an electrical system detection system, a functional testing system and a durability testing unit;

[0037] The test method applied to the Mingyang pitch system tooling specifically includes the following steps:

[0038] S1. During the tooling appearance inspection step, the inspectors should have extensive experience in machining and assembly, and be able to accurately determine the damage and deformation of tooling components. Problems found during the appearance inspection should be photographed and recorded in a timely manner, and classified according to pre-established defect classification standards for subsequent repair and processing.

[0039] S2. In the electrical system inspection process, insulation resistance testers and circuit continuity testers should be calibrated regularly to ensure the accuracy of test data. When conducting insulation resistance tests, electrical safety operating procedures should be followed to isolate the work equipment from other electrical equipment to prevent electric shock accidents during the test. For electrical circuit connectivity tests, a detailed test circuit diagram should be drawn up and tests should be carried out in sequence according to the circuit diagram to avoid omissions.

[0040] S3. In the functional test, the components of the simulated pitch system should have similar performance and parameters to those of the actual pitch system. The control system should have complete monitoring and alarm functions to promptly detect abnormal conditions during the simulated pitch process. When testing the stability of the tooling, the installation position of the vibration sensor should be selected at the key parts of the tooling, such as the supporting structure, transmission mechanism, etc., to accurately reflect the vibration conditions of the tooling.

[0041] S4. The durability test platform should be able to simulate various actual working conditions, such as being able to accurately control the changes in parameters such as temperature, humidity, and load. During the durability test, a dedicated person should be arranged to regularly inspect the tooling to promptly discover and record any problems with the tooling. After the test, the test data should be deeply analyzed to summarize the tooling's performance in terms of durability, providing valuable reference for the tooling's improvement.

[0042] In S1, first, the overall appearance of the Mingyang pitch system tooling is inspected in detail to check whether the various components of the tooling are obviously damaged, deformed or missing, such as whether the metal frame of the tooling has cracks, whether the welding parts are firm, whether various fixtures and positioning devices are complete and can work normally, and for some easily worn parts, such as guide rails, sliders, etc., check whether the degree of wear on the surface is within the allowable range. At the same time, check whether the coating on the surface of the tooling is intact and whether there is any peeling or corrosion, so as to ensure the appearance integrity and basic performance of the tooling.

[0043] In S2, a professional insulation resistance tester is used to perform insulation resistance tests on the electrical system of the tooling. The insulation resistance values ​​between different electrical circuits and between the electrical circuits and the metal casing of the tooling are measured respectively. The test results are compared with the standard insulation resistance values. If the test value is lower than the standard value, it indicates that there is an insulation fault in the electrical system. Further inspection of the line connections, insulation materials and other parts is required to find the fault point and repair it.

[0044] In S2, with the help of a circuit continuity tester, all electrical circuits inside the tooling are tested for connectivity. Starting from the power input end of the electrical system, the connections between the electrical components are checked one by one along the line to ensure that the current can flow smoothly in the entire electrical circuit. For lines with broken circuits or poor contact, they are repaired or reconnected in time to ensure the normal operation of the electrical system.

[0045] In S3, according to the actual working principle of Mingyang's variable pitch system, components simulating the variable pitch system, such as the variable pitch motor, reducer, blade model, etc., are installed on the tooling. Then, the variable pitch motor is driven by the control system to simulate the variable pitch action of the variable pitch system. During the simulated variable pitch process, sensors are used to monitor the force conditions, movement speed, angle changes and other parameters of various parts of the tooling in real time, and compared and analyzed with the theoretical design values. If abnormal parameters are found, such as excessive force, unstable movement speed or excessive angle deviation, the transmission mechanism, support structure and control system of the tooling are inspected and debugged to find out the root cause of the problem and solve it.

[0046] In S2, random vibration tests under multi-axis composite loads are carried out. According to the frequency spectrum and amplitude distribution of blade vibration in actual wind farms, random vibration signals are generated and superimposed on the multi-axis composite loads to further test the structural strength and connection reliability of the tooling under vibration conditions. The vibration frequency ranges from 5 Hz to 200 Hz, the acceleration amplitude ranges from 0.1g to 5g, and the test duration is not less than 500 hours. During the test, non-destructive testing is performed regularly on key welds and bolt connection parts of the tooling, such as ultrasonic testing and bolt preload testing, to ensure structural integrity.

[0047] In S4, a temperature and humidity gradient change test link is added, and multiple stay points are set in different temperature and humidity ranges. The duration of each stay point is determined based on statistical analysis of actual environmental data to fully test the durability of the tooling under conditions of drastic changes in temperature and humidity, such as a test that quickly switches from -20°C and 20% humidity to +60°C and 90% humidity.

[0048] In S4, the salt spray test device is upgraded. In addition to the conventional neutral salt spray test, acidic salt spray (pH 3-4) and alkaline salt spray (pH 8-9) test functions are added to simulate marine environments or industrial pollution areas with different pollution levels. The salt spray deposition can be accurately adjusted between 0.5 ml / hour and 5 ml / hour, and the test duration ranges from 24 hours to 1000 hours. The specific duration is determined according to the severity of the tooling application scenario, and the temperature and humidity changes are combined during the salt spray test, further increasing the complexity of the environmental simulation.

[0049] In S4, during the durability test, a variable pitch load simulation sequence is set under different wind speed profiles. For example, according to the wind speed distribution probability of a standard wind farm, continuous variable pitch operations from low wind speed (3 m / s to 5 m / s) to high wind speed (20 m / s to 25 m / s) are simulated. The duration of each wind speed segment is determined based on actual operating data statistics. The cumulative number of test cycles is not less than 1 million. During the test, the stress conditions of key parts of the tooling are monitored in real time and compared with the theoretical design values ​​to promptly identify potential fatigue damage points.

[0050] The above description is only a preferred embodiment of the present invention and does not limit the present invention in other forms. Any technician familiar with the profession may use the technical content disclosed above to change or modify it into an equivalent embodiment with equivalent changes and apply it to other fields. However, any simple modification, equivalent change and modification made to the above embodiment based on the technical essence of the present invention without departing from the content of the technical solution of the present invention still falls within the protection scope of the technical solution of the present invention.

Claims

1. A testing method for Mingyang pitch system tooling, characterized in that: Including tooling appearance inspection system, electrical system inspection system, functional test system and durability test unit; The test method applied to the Mingyang pitch system tooling specifically includes the following steps: S1. During the tooling appearance inspection step, the inspectors should have extensive experience in machining and assembly, and be able to accurately determine the damage and deformation of tooling components. Problems found during the appearance inspection should be photographed and recorded in a timely manner, and classified according to pre-established defect classification standards for subsequent repair and processing. S2. In the electrical system testing process, the insulation resistance tester and the circuit continuity tester should be calibrated regularly to ensure the accuracy of the test data. When conducting the insulation resistance test, the electrical safety operating procedures should be followed to isolate the tooling from other electrical equipment to prevent electric shock accidents during the test. For the electrical circuit connectivity test, a detailed test circuit diagram should be drawn up and the test should be carried out in sequence according to the circuit diagram to avoid omissions. S3. In the functional test, the components of the simulated pitch system should have similar performance and parameters to those of the actual pitch system. The control system should have complete monitoring and alarm functions to promptly detect abnormal conditions during the simulated pitch process. When testing the stability of the tooling, the installation position of the vibration sensor should be selected at the key parts of the tooling, such as the supporting structure, transmission mechanism, etc., to accurately reflect the vibration conditions of the tooling. S4. The durability test platform should be able to simulate various actual working conditions, such as being able to accurately control the changes in parameters such as temperature, humidity, and load. During the durability test, a dedicated person should be arranged to regularly inspect the tooling to promptly discover and record problems with the tooling. After the test, the test data should be deeply analyzed to summarize the performance of the tooling in terms of durability, providing valuable reference for the improvement of the tooling.

2. A testing method for Mingyang pitch system tooling according to claim 1, characterized in that: The tooling appearance inspection system comprises an appearance inspection unit for inspecting various parts of the tooling, and an environment simulation inspection unit for tooling parts used in different environments.

3. A testing method for Mingyang pitch system tooling according to claim 2, characterized in that: The appearance inspection unit includes an ultrasonic flaw detector, a magnetic particle flaw detector, a surface roughness measuring instrument and a coating thickness gauge.

4. A testing method for Mingyang pitch system tooling according to claim 2, characterized in that: The environmental simulation detection unit includes a salt spray test chamber and a high and low temperature test chamber.

5. The testing method for Mingyang pitch system tooling according to claim 1 is characterized in that: The electrical system detection system includes an environmental control unit, a test unit and a post-test processing unit. The environmental control unit includes an insulation resistance test area and a dust particle counter. The test unit includes an insulation resistance tester. The insulation resistance tester includes data storage, transmission functions, multi-voltage testing, dynamic detection and data analysis. The post-test processing unit includes discharge processing and result evaluation.

6. A testing method for Mingyang pitch system tooling according to claim 1, characterized in that: The functional test system includes a vibrator sensor unit and a simulated pitch action test unit, and the simulated pitch action test unit includes a pitch motor, a reducer and a blade model.

7. The testing method for Mingyang pitch system tooling according to claim 1 is characterized in that: The durability test unit includes dynamic simulation of variable pitch load, application of multi-axis composite load and optimization of environmental simulation test.

8. A testing method for Mingyang pitch system tooling according to claim 7, characterized in that: The pitch load dynamic simulation is electrically connected to the pitch action simulation test unit.

9. A testing method for Mingyang pitch system tooling according to claim 7, characterized in that: The ring simulation test optimization is electrically connected to the environmental simulation detection unit.

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