Process method for automatically adjusting dynamic balance of clutch

Abstract

The invention relates to the technical field of automobile parts, and discloses a self-adjusting clutch dynamic balance process method which comprises the following steps: carrying out structural analysis on a self-adjusting clutch assembly, and determining the specific position and size of a gland notch and an induction ring in an adjusting ring subassembly; according to the structural analysis result, an optimization scheme is designed, the width of the gap between the induction ring and the adjusting ring is adjusted to 1 mm, and the mass of the induction ring is increased; an optimized adjusting ring sub assembly is manufactured, and assembling testing is carried out; the optimization effect is verified through a dynamic balance test, and it is ensured that the initial unbalance amount of the assembly is controlled within a reasonable range. The dynamic balance technological method of the self-adjusting clutch aims at solving the problems that the first-time offline qualification rate of products is low and the manufacturing cost is high due to the fact that an existing self-adjusting clutch assembly is poor in dynamic balance performance in the production process.

Description

Technical Field

[0001] The present invention relates to the technical field of automotive parts, and particularly to a self-adjusting clutch dynamic balancing process method. Background Art

[0002] With the rapid development of the automotive industry and the ever-changing technological innovation, consumers' requirements for automotive performance are becoming increasingly stringent, especially for the comfort of vehicle operation and driving, which has set higher standards. Against this background, the self-adjusting clutch, with its unique advantages, has gradually become one of the key technologies to enhance the driving experience. The self-adjusting clutch can intelligently sense and adapt to various working conditions during driving, effectively solving the problem that the clutch pedal force gradually increases due to factors such as wear and aging during the use of traditional clutches.

[0003] However, in the actual production process, the self-adjusting clutch assembly faces the defect of poor dynamic balance performance. This defect directly leads to a significant reduction in the first-pass yield of products, and further results in high manufacturing costs. Especially in the self-adjusting clutch assembly of the same T9 series as the Jianghuai pickup truck newly developed independently, poor dynamic balance performance means that the clutch will generate unbalanced centrifugal force during rotation, which not only affects the normal operation of the clutch, but may also cause abnormal phenomena such as vibration and noise, and even lead to clutch damage in severe cases. Due to the difficulty in precisely controlling the dynamic balance, multiple adjustments and detections are often required during the production process, which undoubtedly increases the production time and cost. At the same time, the rework and scrapping of unqualified products further drive up the manufacturing costs, affecting the economic benefits and market competitiveness of the enterprise. Summary of the Invention

[0004] The purpose of the present invention is to solve the problem that the existing self-adjusting clutch assembly has poor dynamic balance performance during the production process, resulting in a low first-pass yield of products and high manufacturing costs, and to propose a self-adjusting clutch dynamic balancing process method.

[0005] The technical solution of the present invention to solve the above technical problems is as follows:

[0006] A self-adjusting clutch dynamic balancing process method includes the following steps:

[0007] S10: Conduct a structural analysis of the self-adjusting clutch assembly to determine the specific positions and dimensions of the gland notch and the induction ring in the adjusting ring sub-assembly;

[0008] S20: According to the results of the structural analysis, design an optimization plan, adjust the gap width between the induction ring and the adjusting ring to 1 mm, and increase the mass of the induction ring;

[0009] S30: Manufacture the optimized adjusting ring sub-assembly and conduct assembly tests;

[0010] S40: Verify the optimization effect through dynamic balance testing to ensure that the initial imbalance of the assembly is controlled within a reasonable range. Among them, the optimization plan predicts the improvement effect of the increase in the mass of the induction ring on the initial imbalance of the assembly through a mathematical model, and the formula is:

[0011] M new = M old - k·Δm

[0012] In the formula, M new is the imbalance after optimization, M old is the imbalance before optimization, k is the mass influence coefficient, and Δm is the increased mass of the induction ring.

[0013] Based on the above technical solutions, the present invention can also be improved as follows.

[0014] Furthermore, the structural analysis in S10 includes the following sub-steps:

[0015] S11: Use three-dimensional scanning technology to perform non-contact measurement on the clutch assembly to obtain the three-dimensional geometric data of the gland notch;

[0016] S12: Simulate the influence of the gland notch on the imbalance of the assembly through finite element analysis software to generate an imbalance distribution map;

[0017] S13: Determine the optimal installation position of the induction ring in the adjusting ring sub-assembly based on the analysis results to maximize the mass compensation effect.

[0018] Furthermore, the induction ring mass optimization in S20 includes the following algorithms:

[0019] Based on the imbalance value of the gland notch, calculate the minimum mass increment required for the induction ring through an iterative algorithm:

[0020]

[0021] Based on the formula, M threshold is the qualified threshold of dynamic balance, ensuring that M new ≤ M threshold .

[0022] Furthermore, the clearance width adjustment in S20 includes the following method: reduce the clearance width between the inner side of the contact tooth profile of the induction ring and the ratchet and the adjusting ring from 11.5 mm to 1 mm, ensure the dimensional tolerance ≤ 0.05 mm through precision CNC machining, and use a laser interferometer for on-line detection.

[0023] Further, the production of the adjusting ring assembly in S30 includes the following processes: The induction ring is made by powder metallurgy forming technology, and the material density is increased through vacuum sintering process to ensure that the accuracy of the mass increase Δm is controlled within the range of ±2%.

[0024] Further, the dynamic balance test in step S40 includes the following verification methods: Test at a rotational speed of 2000 rpm on a special dynamic balance machine, use the phase analysis method to locate the residual unbalance amount. If the test value exceeds the threshold, return to step S20 to re-optimize the quality parameters of the induction ring.

[0025] Further, the determination of the mass influence coefficient k includes the following steps:

[0026] A1: Establish a mass-stiffness coupling model of the clutch assembly;

[0027] A2: Obtain the natural frequency and vibration mode of the assembly through modal analysis experiments;

[0028] A3: Fit the k value based on the experimental data, and its calculation formula is:

[0029]

[0030] In the formula, is the sensitivity of the mass change of the i-th induction ring unit to the unbalance amount of the assembly.

[0031] Further, it also includes a dynamic compensation step: During the use of the clutch, the vibration signal of the assembly is monitored in real time through a sensor. When the detected unbalance amount exceeds the preset threshold, the induction ring mass adjustment mechanism is automatically triggered for dynamic compensation.

[0032] Further, it also includes a temperature compensation mechanism:

[0033] Establish a relationship model between the thermal expansion coefficient of the induction ring material and the temperature change. Under extreme working conditions, the quality design parameters of the induction ring are corrected through the feedback data of the temperature sensor. The compensation formula is:

[0034] Δm temp =α·m·ΔT

[0035] In the formula, α is the material thermal expansion coefficient, and ΔT is the working temperature change amount.

[0036] Further, it also includes a fatigue life verification step: Verify the reliability of the optimized induction ring under cyclic loading through an accelerated life test, and use the Weibull distribution model to evaluate its failure probability. The surface of the induction ring is coated with a damping coating, and its material is a composite material of nickel-based alloy and ceramic particles, which is prepared by laser cladding process, and the thickness is controlled between 0.1 - 0.3 mm.

[0037] Compared with the prior art, the technical solution of the present application has the following beneficial technical effects:

[0038] The present invention conducts a structural analysis on the self-adjusting clutch assembly, accurately determines the specific positions and dimensions of the gland notch and the induction ring in the adjusting ring sub-assembly, providing a basis for subsequent optimization. Secondly, according to the results of the structural analysis, an optimization scheme is designed. By adjusting the clearance width between the induction ring and the adjusting ring to 1 mm and increasing the mass of the induction ring, the dynamic balance performance of the clutch is improved. In this process, a mathematical model is used to predict the improvement effect of the increased mass of the induction ring on the initial unbalance of the assembly, making the optimization scheme more scientific and accurate. Finally, the optimized adjusting ring sub-assembly is manufactured and assembled for testing. The optimization effect is verified through dynamic balance testing to ensure that the initial unbalance of the assembly is controlled within a reasonable range. This can not only effectively solve the problem of poor dynamic balance performance mentioned in the background art, improve the first-pass yield of the product, reduce the manufacturing cost, but also significantly improve the overall performance of the clutch, reduce the occurrence of abnormal phenomena such as vibration and noise, and extend the service life of the clutch. Brief Description of the Drawings

[0039] Figure 1 It is a schematic diagram of the clearance between the induction ring and the adjusting ring in the adjusting ring sub-assembly of the present invention. Detailed Embodiments

[0040] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all of the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the protection scope of the present invention.

[0041] A dynamic balance process method for a self-adjusting clutch of the present invention includes the following steps:

[0042] S10: Conduct a structural analysis on the self-adjusting clutch assembly to determine the specific positions and dimensions of the gland notch and the induction ring in the adjusting ring sub-assembly;

[0043] S20: According to the results of the structural analysis, design an optimization scheme, adjust the clearance width between the induction ring and the adjusting ring to 1 mm, and increase the mass of the induction ring;

[0044] S30: Manufacture the optimized adjusting ring sub-assembly and conduct assembly testing;

[0045] S40: Verify the optimization effect through dynamic balance testing to ensure that the initial unbalance of the assembly is controlled within a reasonable range. Among them, the optimization scheme predicts the improvement effect of the increased mass of the induction ring on the initial unbalance of the assembly through a mathematical model, and the formula is:

[0046] M new = M old - k·Δm

[0047] Wherein, M new is the optimized unbalance, M old is the unbalance before optimization, k is the mass influence coefficient, and Δm is the mass added to the induction ring.

[0048] In a preferred embodiment of the present invention, it can be further configured that: the structural analysis in S10 includes the following sub-steps:

[0049] S11: Use 3D scanning technology to perform non-contact measurement on the clutch assembly to obtain the 3D geometric data of the gland notch;

[0050] S12: Simulate the influence of the gland notch on the unbalance of the assembly through finite element analysis software to generate an unbalance distribution map;

[0051] S13: Based on the analysis results, determine the optimal installation position of the induction ring in the adjusting ring sub-assembly to maximize the mass compensation effect. By using 3D scanning technology and finite element analysis software, precise measurement and simulation analysis of the clutch assembly can be carried out, which can deeply reveal the specific influence of the gland notch on the unbalance of the assembly, and accordingly determine the optimal installation position of the induction ring in the adjusting ring sub-assembly. Through precise structural analysis and optimization, the dynamic balance performance of the clutch can be significantly improved, the first-pass rate of the product can be increased, the manufacturing cost can be reduced, and the abnormal phenomena caused by dynamic balance problems can be reduced, thereby enhancing the overall performance and reliability of the clutch.

[0052] In the structural analysis step of S10, first, 3D scanning technology is used to perform non-contact measurement on the clutch assembly, which can quickly and accurately obtain the 3D geometric data of the gland notch, including information such as its shape, size, and position, providing a detailed data basis for subsequent analysis. Then, the obtained 3D geometric data is processed through finite element analysis software to simulate the influence of the gland notch on the unbalance of the assembly. The finite element analysis software can establish an accurate mechanical model, considering various factors such as material properties and boundary conditions, and generate a detailed unbalance distribution map. This map can visually show the contribution degree of the gland notch to the unbalance of the assembly and the distribution of the unbalance in the assembly. Finally, based on the analysis results, through optimization algorithms and experimental verification, the optimal installation position of the induction ring in the adjusting ring sub-assembly is determined. This position can maximize the mass compensation effect of the induction ring, thereby effectively improving the dynamic balance performance of the clutch.

[0053] In a preferred embodiment of the present invention, it can be further configured that: the induction ring mass optimization in S20 includes the following algorithms:

[0054] Based on the unbalance value of the gland notch, the minimum mass increment required for the induction ring is calculated through an iterative algorithm:

[0055]

[0056] Based on the formula, M threshold is the qualified threshold for dynamic balance, ensuring that the optimized M new ≤M threshold By accurately calculating the minimum mass increment required for the induction ring through an iterative algorithm based on the unbalance value of the gland notch, the unbalance problem caused by the gland notch can be specifically solved. By precisely adjusting the mass of the induction ring, the clutch assembly can reach the qualified threshold for dynamic balance, reducing the manufacturing cost and the abnormal phenomena caused by dynamic balance problems, and improving the overall performance and reliability of the clutch.

[0057] An iterative algorithm based on the unbalance value of the gland notch is adopted to calculate the minimum mass increment required for the induction ring. The algorithm first obtains the unbalance value of the gland notch, which is obtained from the unbalance distribution map generated in the previous structural analysis step and has high accuracy and reliability. Then, the algorithm sets a qualified threshold for dynamic balance, which is determined according to the design requirements and working conditions of the clutch to ensure that the optimized clutch assembly can meet the dynamic balance performance requirements. Next, the algorithm uses the iterative method to continuously adjust the mass increment of the induction ring. After each adjustment, the unbalance of the clutch assembly is recalculated and compared with the qualified threshold for dynamic balance. Through continuous iteration, the algorithm can finally find the minimum mass increment that meets the qualified threshold for dynamic balance, thus realizing the precise optimization of the mass of the induction ring. This process not only improves the optimization efficiency but also ensures the accuracy and reliability of the optimization results, providing a strong guarantee for the improvement of the dynamic balance performance of the clutch assembly.

[0058] In a preferred embodiment of the present invention, it can be further configured as follows: The gap width adjustment in S20 includes the following method: reducing the gap width between the inner side of the contact tooth shape of the induction ring and the adjusting ring from 11.5 mm to 1 mm, ensuring the dimensional tolerance ≤0.05 mm through precision CNC machining, and using a laser interferometer for on-line detection. By precisely reducing the gap width between the inner side of the contact tooth shape of the induction ring and the adjusting ring from 11.5 mm to 1 mm, strictly controlling the dimensional tolerance within ≤0.05 mm, and at the same time using a laser interferometer for on-line detection, the unbalance problem caused by excessive gaps is solved. This adjustment can significantly improve the dynamic balance performance of the clutch, reduce the vibration and noise caused by improper gaps, thereby improving the first-pass yield rate of the product, reducing the manufacturing cost, and enhancing the overall reliability and service life of the clutch.

[0059] Using a precision CNC machine tool, the gap between the inner side of the contact tooth profile of the induction ring and the adjusting ring is precisely machined. The gap width is reduced from the original 11.5 mm to 1 mm. This machining process ensures the accuracy and consistency of the gap width through high-precision CNC programming and tool control. At the same time, the dimensional tolerance is strictly controlled within ≤0.05 mm to meet the strict requirements of the clutch assembly for dynamic balance performance. Secondly, during the machining process, a laser interferometer is used for on-line detection to monitor the change of the gap width in real time, ensuring the stability and reliability of the machining accuracy. The laser interferometer has the advantages of high precision, high speed and non-contact measurement, and can timely detect and correct the deviation in the machining process to ensure that the adjustment of the gap width meets the design requirements.

[0060] In a preferred embodiment of the present invention, it can be further configured as follows: The production of the adjusting ring sub-assembly in S30 includes the following processes: The induction ring is made by powder metallurgy forming technology, and the material density is increased by vacuum sintering process to ensure that the accuracy control of the mass increase amount Δm is within the range of ±2%. By using powder metallurgy forming technology to make the induction ring and combining with vacuum sintering process to increase the material density, the accuracy control of the mass increase amount is ensured within the range of ±2%, improving the quality consistency of the induction ring, significantly improving the dynamic balance performance of the clutch assembly, reducing the imbalance problem caused by mass fluctuation, thereby improving the first-pass yield of the product, reducing the manufacturing cost, and enhancing the overall reliability and stability of the clutch.

[0061] Powder metallurgy forming technology is used to make the induction ring. After mixing metal powders in a certain proportion, they are pressed into the required shape under high pressure to form the preliminary structure of the induction ring. This process can precisely control the shape and size of the induction ring, laying a foundation for subsequent quality precision control. Secondly, the preliminary formed induction ring is subjected to high-temperature treatment by vacuum sintering process to further increase the material density and strength. Sintering in a vacuum environment can effectively avoid oxidation and impurity mixing, ensuring that the material properties of the induction ring reach the optimal level. At the same time, by precisely controlling the sintering temperature and time, the accurate control of the mass increase amount of the induction ring is realized, and its accuracy is controlled within the range of ±2%. This high-precision quality control not only improves the performance consistency of the induction ring, but also provides a strong guarantee for the dynamic balance performance of the clutch assembly.

[0062] In a preferred embodiment of the present invention, it can be further configured as follows: In step S40, the dynamic balance test includes the following verification method: Conduct the test on a special dynamic balancing machine at a rotational speed of 2000 rpm, and use the phase analysis method to locate the residual unbalance. If the test value exceeds the threshold, return to step S20 to re-optimize the quality parameters of the induction ring. By conducting the test on a special dynamic balancing machine at a rotational speed of 2000 rpm and using the phase analysis method to locate the residual unbalance, it is possible to accurately and efficiently detect whether the dynamic balance performance of the clutch assembly meets the standard. If the test value exceeds the threshold, return to step S20 to re-optimize the quality parameters of the induction ring, ensuring that the optimization process of the dynamic balance performance can continue until the design requirements are met.

[0063] In the dynamic balance test of S40, a special dynamic balancing machine is specifically used for the test, and the test condition with a rotational speed of 2000 rpm is set. The selection of this rotational speed is based on the rotational speed range of the clutch assembly during actual operation, which can simulate the dynamic balance state of the clutch under real working conditions, thereby ensuring the accuracy and reliability of the test results. During the test process, the phase analysis method is used to locate the residual unbalance. The phase analysis method is a high-precision dynamic balance test method that can accurately identify the position and magnitude of the unbalance, providing strong support for subsequent optimization work. If the test value exceeds the preset threshold, it indicates that the dynamic balance performance of the clutch assembly does not meet the design requirements. At this time, the system will automatically return to step S20 to re-optimize the quality parameters of the induction ring. During this process, the system will comprehensively consider multiple factors such as the quality, position, and size of the induction ring, and perform precise calculations through mathematical models and algorithms to obtain the optimal quality parameter adjustment plan. Then, the induction ring is remanufactured according to the adjustment plan and the dynamic balance test is carried out again until the test value meets the design requirements. Through this closed-loop feedback mechanism, it is ensured that the dynamic balance performance of the clutch assembly can continuously and stably reach the optimal state, providing strong guarantee for the performance and reliability of the clutch.

[0064] In a preferred embodiment of the present invention, it can be further configured as follows: The determination of the mass influence coefficient k includes the following steps:

[0065] A1: Establish a mass-stiffness coupling model of the clutch assembly;

[0066] A2: Obtain the natural frequency and vibration mode of the assembly through modal analysis experiments;

[0067] A3: Fit the k value based on the experimental data, and its calculation formula is:

[0068]

[0069] In the formula, The sensitivity of the mass change of the i-th induction ring unit to the imbalance of the assembly. By establishing a mass-stiffness coupling model of the clutch assembly and combining modal analysis experiments to obtain the natural frequency and vibration mode of the assembly, the mass influence coefficient is finally obtained by fitting based on the experimental data, providing a scientific basis for accurately predicting and controlling the influence of the mass change of the induction ring on the imbalance of the assembly.

[0070] In the process of determining the mass influence coefficient, the following steps are specifically adopted. First, a mass-stiffness coupling model of the clutch assembly is established. This model comprehensively considers the mass distribution, stiffness characteristics of the clutch assembly, and the interaction relationship between components, and can accurately simulate the dynamic behavior of the clutch assembly in actual operation. Second, the natural frequency and vibration mode of the assembly are obtained through modal analysis experiments. Modal analysis experiment is an effective method for structural dynamics analysis, which can reveal the vibration characteristics of the structure under free vibration or forced vibration, providing experimental data support for the subsequent fitting of the mass influence coefficient. In the experiment, high-precision test equipment is used to measure the excitation and response of the clutch assembly to obtain key parameters such as its natural frequency and vibration mode. Finally, the mass influence coefficient is obtained by fitting based on the experimental data. This fitting process processes and analyzes the experimental data through mathematical methods and algorithms to obtain the relationship between the mass influence coefficient and the mass change of the induction ring unit, providing a quantitative basis for the subsequent optimization of the induction ring mass.

[0071] In a preferred embodiment of the present invention, it can be further configured as follows: it further includes a dynamic compensation step. During the use of the clutch, the vibration signal of the assembly is monitored in real time through a sensor. When it is detected that the imbalance exceeds a preset threshold, the induction ring mass adjustment mechanism is automatically triggered for dynamic compensation. By monitoring the vibration signal of the assembly in real time through a sensor and automatically triggering the induction ring mass adjustment mechanism for dynamic compensation when the imbalance exceeds the preset threshold, it can sense the dynamic balance state of the clutch in real time and perform automatic adjustment when necessary, so as to ensure that the clutch can maintain excellent dynamic balance performance throughout the service life, reduce vibration, noise and wear caused by dynamic balance problems, improve the reliability and service life of the clutch, and at the same time reduce the maintenance cost and downtime.

[0072] In the dynamic compensation step, the system uses high-precision sensors to continuously monitor the vibration signals of the clutch assembly. These sensors are installed at key parts of the clutch and can accurately capture the vibration conditions of the assembly during operation. They convert the vibration signals into electrical signals for transmission. When the system receives the vibration signals, it immediately performs analysis and processing. By using preset algorithms and models, it determines whether the unbalance amount exceeds the preset threshold. Once it detects that the unbalance amount exceeds the standard, the system automatically triggers the induction ring mass adjustment mechanism for dynamic compensation. The induction ring mass adjustment mechanism is a precision mechanical device that can precisely adjust the mass distribution of the induction ring according to the system's instructions to offset the unbalance amount and restore the dynamic balance state of the clutch. During this process, the system also records the vibration data before and after compensation for subsequent analysis and optimization. Through the implementation of this dynamic compensation step, the clutch can maintain stable dynamic balance performance throughout its service life, ensuring the normal operation of the clutch and extending its service life.

[0073] In a preferred embodiment of the present invention, it can be further configured as: further including a temperature compensation mechanism:

[0074] Establish a relationship model between the thermal expansion coefficient of the induction ring material and the temperature change. Under extreme working conditions, correct the mass design parameters of the induction ring through the data feedback of the temperature sensor. The compensation formula is:

[0075] Δm temp =α·m·ΔT

[0076] In the formula, α is the thermal expansion coefficient of the material, and ΔT is the change in the working temperature. By establishing a relationship model between the thermal expansion coefficient of the induction ring material and the temperature change, and correcting the mass design parameters of the induction ring through the data feedback of the temperature sensor under extreme working conditions, it can perceive the environmental temperature change in real time and automatically adjust the mass design parameters of the induction ring according to the thermal expansion coefficient, thereby ensuring that the clutch can maintain stable dynamic balance performance under different temperature conditions, reducing the dynamic balance problems caused by temperature changes, and improving the reliability and service life of the clutch.

[0077] In the temperature compensation mechanism, the system first establishes a relationship model between the thermal expansion coefficient of the induction ring material and the temperature change. This model is based on the principles of materials science and obtains the quantitative relationship between the thermal expansion coefficient of the induction ring material and the temperature change through fitting experimental data. During the operation of the clutch, the system monitors the change in the working temperature in real time through temperature sensors installed at key positions and feeds the data back to the control system. When it detects that the change in the working temperature exceeds a certain range, the system will automatically trigger the temperature compensation mechanism, calculate the thermal expansion of the induction ring material according to the relationship model and the temperature change amount, and then correct the quality design parameters of the induction ring. During the correction process, the system will comprehensively consider factors such as the geometric shape of the induction ring, material properties, and the overall structure of the clutch assembly to ensure that the corrected quality design parameters of the induction ring can meet the dynamic balance performance requirements of the clutch.

[0078] In a preferred embodiment of the present invention, it can be further configured as follows: It further includes a fatigue life verification step: verifying the reliability of the optimized induction ring under cyclic loading through an accelerated life test, and evaluating its failure probability using the Weibull distribution model. The surface of the induction ring is coated with a damping coating, and its material is a composite material of nickel-based alloy and ceramic particles, which is prepared by laser cladding technology, and the thickness is controlled between 0.1 - 0.3 mm. Verify the reliability of the optimized induction ring under cyclic loading through an accelerated life test, and evaluate its failure probability using the Weibull distribution model. At the same time, the surface of the induction ring is coated with a damping coating, and the presence of the damping coating can significantly reduce the stress concentration of the induction ring under cyclic loading and improve its fatigue resistance; the combination of the accelerated life test and the Weibull distribution model can accurately predict the fatigue life of the induction ring, providing a scientific basis for the design and maintenance of the clutch, thereby improving the overall reliability and service life of the clutch.

[0079] In the fatigue life verification step, the system first conducts reliability verification on the optimized induction ring through an accelerated life test. The accelerated life test is a method that simulates cyclic loads under actual use conditions to accelerate the fatigue failure process of the induction ring. During the test, the system applies cyclic loads with different amplitudes and frequencies to the induction ring and monitors parameters such as stress and strain in real time until the induction ring undergoes fatigue failure. By recording the number of cycles and load conditions at the time of failure, the fatigue life curve of the induction ring can be established. At the same time, the system uses the Weibull distribution model to evaluate the failure probability of the induction ring. The Weibull distribution model is a commonly used reliability evaluation model that can fit the failure probability distribution function of the induction ring based on failure data, thereby predicting its failure probability under different use conditions. To further improve the anti-fatigue performance of the induction ring, the system coats a damping coating on its surface. The damping coating is made of a composite material of nickel-based alloy and ceramic particles and is prepared by laser cladding technology. The laser cladding technology can ensure a firm bond between the coating and the induction ring substrate, forming a uniform and dense protective layer. The thickness of the damping coating is controlled between 0.1 - 0.3 mm, which can effectively reduce the stress concentration on the surface of the induction ring and maintain its good mechanical properties. Through the implementation of this fatigue life verification step, the system can accurately evaluate the fatigue life and reliability of the induction ring, providing strong support for the design and maintenance of the clutch, thereby improving the overall performance and life of the clutch.

[0080] Through a detailed structural analysis of the self-adjusting clutch assembly, three-dimensional geometric data of the gland notch is obtained using three-dimensional scanning technology, and its influence on the unbalance of the assembly is simulated through finite element analysis software, thereby accurately determining the optimal installation position of the induction ring in the adjusting ring sub-assembly, laying a foundation for subsequent optimization work;

[0081] Next, an optimization plan is designed based on the structural analysis results. The key is to adjust the clearance width between the induction ring and the adjusting ring to 1 mm, and the improvement effect of the increase in the mass of the induction ring on the initial unbalance of the assembly is predicted through a mathematical model. The iterative algorithm is used to calculate the minimum mass increment required for the induction ring to ensure effective control of the optimized unbalance. During the adjustment of the clearance width, precision CNC machining and on-line detection with a laser interferometer are used to ensure that the dimensional tolerance is within a very small range, ensuring the accuracy of the adjustment;

[0082] Subsequently, the optimized adjusting ring sub-assembly is manufactured. The induction ring is manufactured using powder metallurgy forming technology and the material density is increased through vacuum sintering technology to ensure that the accuracy of the mass increase is controlled within ±2%, thereby further improving the dynamic balance performance of the assembly. After manufacturing, an assembly test is carried out to ensure good cooperation of all components;

[0083] In the dynamic balance test stage, the test is carried out at a specific speed through a dedicated dynamic balancing machine. The phase analysis method is used to locate the residual unbalance. If the test value exceeds the threshold, the steps of optimizing the quality parameters of the induction ring are returned for iterative optimization until the design requirements are met;

[0084] In addition, dynamic compensation steps and a temperature compensation mechanism are incorporated to address the possible dynamic balance changes that may occur during the use of the clutch. The dynamic compensation steps automatically trigger the induction ring quality adjustment mechanism for dynamic compensation by real-time monitoring of the assembly vibration signal; the temperature compensation mechanism corrects the induction ring quality design parameters under extreme working conditions by establishing a relationship model between the thermal expansion coefficient of the induction ring material and temperature changes, ensuring that the clutch can maintain stable dynamic balance performance under different temperature conditions;

[0085] Finally, the reliability of the optimized induction ring under cyclic loading is verified through an accelerated life test, and the Weibull distribution model is used to evaluate its failure probability. At the same time, the surface of the induction ring is coated with a damping coating to further improve its fatigue resistance and service life. These series of steps together constitute a complete, precise and efficient self-adjusting clutch dynamic balance process method.

[0086] It should be noted that in this article, relational terms such as first and second are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the term "comprising", "including" or any other variant thereof is intended to cover non-exclusive inclusion, so that a process, method, article or device comprising a series of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article or device. Without further limitation, an element defined by the statement "comprising an..." does not exclude the presence of additional identical elements in the process, method, article or device comprising the element.

[0087] Although the embodiments of the present invention have been shown and described, it will be understood by those of ordinary skill in the art that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A self-adjusting clutch dynamic balancing process method, characterized in that It includes the following steps: S10: Conduct a structural analysis of the self-adjusting clutch assembly to determine the specific positions and dimensions of the gland notch and the induction ring in the adjusting ring sub-assembly; S20: According to the results of the structural analysis, design an optimization plan, adjust the clearance width between the induction ring and the adjusting ring to 1 mm, and increase the mass of the induction ring; S30: Manufacture the optimized adjusting ring sub-assembly and conduct assembly tests; S40: Verify the optimization effect through dynamic balance tests to ensure that the initial unbalance of the assembly is controlled within a reasonable range. Among them, the optimization plan predicts the improvement effect of the increase in the mass of the induction ring on the initial unbalance of the assembly through a mathematical model, and the formula is: M new = M old - k·Δm Where M new is the optimized unbalance, M old is the unbalance before optimization, k is the mass influence coefficient, and Δm is the mass added to the induction ring.

2. The self-adjusting clutch dynamic balancing process method according to claim 1, characterized in that, The structural analysis in S10 includes the following sub-steps: S11: Use three-dimensional scanning technology to conduct non-contact measurement of the clutch assembly to obtain the three-dimensional geometric data of the gland notch; S12: Simulate the influence of the gland notch on the unbalance of the assembly through finite element analysis software to generate an unbalance distribution map; S13: Based on the analysis results, determine the optimal installation position of the induction ring in the adjusting ring sub-assembly to maximize the mass compensation effect.

3. The self-adjusting clutch dynamic balance process method according to claim 1, characterized in that, The optimization of the induction ring mass in S20 includes the following algorithms: Based on the unbalance value of the gland notch, calculate the minimum mass increment required for the induction ring through an iterative algorithm: Based on the formula, M threshold is the qualified threshold for dynamic balance, ensuring that the optimized M new ≤M threshold .

4. A self-adjusting clutch dynamic balance process method according to claim 1, characterized in that The adjustment of the clearance width in S20 includes the following methods: Reduce the clearance width between the inner side of the contact tooth profile of the induction ring and the ratchet and the adjusting ring from 11.5 mm to 1 mm, ensure the dimensional tolerance ≤ 0.05 mm through precision CNC machining, and use a laser interferometer for on-line detection.

5. A self-adjusting clutch dynamic balancing process method according to claim 1, characterized in that The manufacture of the adjusting ring sub-assembly in S30 includes the following processes: Use powder metallurgy forming technology to manufacture the induction ring, improve the material density through vacuum sintering process, and ensure that the accuracy of the mass increase Δm is controlled within the range of ±2%; 6. A self-adjusting clutch dynamic balance process method according to claim 1, characterized in that, The dynamic balance test in step S40 includes the following verification methods: Conduct tests on a special dynamic balance machine at a rotational speed of 2000 rpm, use phase analysis method to locate the residual unbalance, and if the test value exceeds the threshold, return to step S20 to re-optimize the mass parameters of the induction ring.

7. A self-adjusting clutch dynamic balance process method according to claim 1, characterized in that, The determination of the quality influence coefficient k includes the following steps: A1: Establish a mass-stiffness coupling model of the clutch assembly; A2: Obtain the natural frequency and vibration mode of the assembly through modal analysis experiments; A3: Fit the k value based on the experimental data, and its calculation formula is: In the formula, is the sensitivity of the mass change of the i-th induction ring unit to the unbalance of the assembly.

8. A self-adjusting clutch dynamic balance process method according to claim 1, characterized in that, It also includes a dynamic compensation step: During the use of the clutch, the vibration signal of the assembly is monitored in real time through a sensor. When the detected unbalance exceeds the preset threshold, the induction ring mass adjustment mechanism is automatically triggered for dynamic compensation.

9. A self-adjusting clutch dynamic balance process method according to claim 1, characterized in that It also includes a temperature compensation mechanism: Establish a relationship model between the thermal expansion coefficient of the induction ring material and the temperature change. Under extreme working conditions, the design parameters of the induction ring mass are corrected by the feedback data of the temperature sensor, and the compensation formula is: Δm temp = α·m·ΔT In the formula, α is the material thermal expansion coefficient, and ΔT is the working temperature change.

10. A self-adjusting clutch dynamic balance process method according to claim 1, characterized in that, It also includes a fatigue life verification step: verifying the reliability of the optimized induction loop under cyclic loads through an accelerated life test, and using the Weibull distribution model to evaluate its failure probability. The surface of the induction loop is coated with a damping coating, the material of which is a composite material of nickel-based alloy and ceramic particles, prepared by a laser cladding process, and the thickness is controlled between 0.1 - 0.3 mm.

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