Ratchet and pawl clutch operation state detection method and device and medium
By collecting acceleration and displacement data of the ratchet and pawl clutch, and combining eddy current displacement sensors and Kalman filtering algorithms, the problem of untimely and inaccurate manual inspection is solved, and timely and accurate condition detection and life prediction of the ratchet and pawl clutch are realized.
Patent Information
- Application Number
- CN202511854812.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2025-12-10
- Publication Date
- 2026-02-06
AI Technical Summary
In the existing technology, the inspection of ratchet and pawl clutches relies on manual inspection, which has the problems of untimely and inaccurate inspection.
By acquiring acceleration and displacement data of each pawl striking the ratchet, the actual striking force is calculated, feature data is extracted, and compared with standard values to confirm the operating status. Data acquisition and processing are performed using an eddy current displacement sensor and a Kalman filter algorithm, and lifespan prediction is performed in conjunction with a database.
It enables timely and accurate condition detection and life prediction of ratchet and pawl clutches, improving the accuracy of detection and the operational reliability of the equipment.
Smart Images
Figure CN121475673A_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The present application relates to the technical field of mechanical transmission, in particular to a ratchet pawl clutch operating state detection method, device and medium. BACKGROUND
[0002] The ratchet pawl clutch is a widely used non-powered device in mechanical transmission, mainly used for one-way transmission and preventing reverse movement of equipment. Its key feature is that it can rotate freely in one direction, but automatically lock in the opposite direction, thereby protecting the safety of equipment and transmission system. This clutch is widely used in hoisting equipment, conveying machinery, power equipment, transportation tools and other fields.
[0003] With the development of automation technology, the operating conditions and use environment of various mechanical equipment are becoming increasingly complex, and the operating environment of the ratchet pawl clutch is often accompanied by high load, vibration, temperature change and wear and tear. These factors can cause fatigue damage, wear and tear and aging of the ratchet and pawl components in continuous work, thereby affecting the working performance and reliability of the clutch. In addition, if the equipment fails, it may cause significant safety hazards and pose a great risk to the operator and the equipment.
[0004] In the current technology, the monitoring means for the ratchet pawl clutch mainly relies on manual inspection, which is not only time-consuming and laborious, but also has the problems of untimely detection, false detection and missed detection.
[0005] Therefore, how to more accurately and timely detect the operating state of the ratchet pawl clutch is a problem to be solved by those skilled in the art. SUMMARY
[0006] The purpose of the present application is to solve the problem of untimely and inaccurate detection in the current technology which relies on manual inspection. Therefore, the present application provides a ratchet pawl clutch operating state detection method, device and medium to more accurately and timely detect the operating state of the ratchet pawl clutch.
[0007] In order to solve the above technical problems, the present application provides a ratchet pawl clutch operating state detection method, comprising:
[0008] Obtain operating data of each pawl; the operating data includes acceleration data and displacement data of each pawl when it strikes the ratchet each time, and actual striking force of each pawl when it strikes the ratchet each time calculated according to the acceleration data and the displacement data;
[0009] Extract feature data of each pawl from the operating data;
[0010] The feature data is compared with a standard value, and the running state of each pawl is confirmed according to the comparison result.
[0011] Preferably, the feature data includes maximum acceleration and / or displacement rate of change and / or average knocking force.
[0012] Preferably, the method further comprises:
[0013] determining whether the deviation of the running data between each pawl is within a preset range;
[0014] If yes, the detection clutch is confirmed as a standard clutch.
[0015] Preferably, after the step of confirming the detection clutch as a standard clutch, the method further comprises:
[0016] confirming the variation trend of each data according to the running data of any pawl;
[0017] comparing the variation trend with a calibration variation trend in a database to derive the service life of the detection clutch.
[0018] Preferably, the running data of each pawl is obtained by:
[0019] using an eddy current displacement sensor to collect displacement data of each pawl;
[0020] calculating acceleration data of each pawl according to the displacement data.
[0021] Preferably, the method further comprises:
[0022] using a Kalman filtering algorithm to filter the displacement data collected by the eddy current displacement sensor.
[0023] Preferably, the eddy current displacement sensor is arranged at the top end of the pawl, or the connecting surface of the ratchet wheel and the pawl, or around the central shaft.
[0024] To solve the above technical problems, the application further provides a ratchet and pawl clutch running state detection device, comprising:
[0025] an acquisition module configured to acquire running data of each pawl; the running data includes acceleration data and displacement data of each pawl when each pawl knocks the ratchet wheel, and actual knocking force of each pawl when each pawl knocks the ratchet wheel, which is calculated according to the acceleration data and the displacement data;
[0026] an extraction module configured to extract feature data of each pawl from the running data;
[0027] a comparison module configured to compare the feature data with a standard value, and confirm the running state of each pawl according to the comparison result.
[0028] To solve the above technical problems, the present application also provides another ratchet pawl clutch operating state detection device, comprising:
[0029] A memory for storing a computer program;
[0030] A processor for executing the computer program to implement the steps of the ratchet pawl clutch operating state detection method as described above.
[0031] To solve the above technical problems, the present application also provides a computer readable storage medium having a computer program stored thereon, wherein the computer program is executed by a processor to implement the steps of the ratchet pawl clutch operating state detection method as described above.
[0032] The present application provides a ratchet pawl clutch operating state detection method, device and medium. Compared with the current technology which relies on manual inspection, the present application has the problems of untimely detection and inaccurate detection. The present application collects acceleration data and displacement data of each pawl when it strikes the ratchet each time, and the actual striking force, extracts feature data from them, and compares the feature data with standard values to confirm the operating state of each pawl. By using the technical solution, the sensor collects various operating data of the pawl. The sensor can collect data in real time and continuously, and the detection accuracy is improved by diversifying the types of collected data, so that more timely and accurate ratchet pawl clutch operating state detection is achieved. In addition, the present application also infers the service life of the ratchet pawl clutch through a database, which facilitates technicians to master the health status of the clutch and greatly improves the operating reliability of the clutch. BRIEF DESCRIPTION OF DRAWINGS
[0033] In order to more clearly illustrate the embodiments of the present application, the drawings needed in the embodiments will be briefly introduced below. Obviously, the drawings in the following description are only some embodiments of the present application, and other drawings can be obtained by those skilled in the art without creative labor.
[0034] Figure 1 A flowchart of a ratchet pawl clutch operating state detection method provided by an embodiment of the present application;
[0035] Figure 2 A structural diagram of a ratchet pawl clutch operating state detection device provided by an embodiment of the present application;
[0036] Figure 3 A structural diagram of another ratchet pawl clutch operating state detection device provided by an embodiment of the present application. DETAILED DESCRIPTION
[0037] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments of the present application. Based on the embodiments in the present application, all other embodiments obtained by a person of ordinary skill in the art without creative work fall within the protection scope of the present application.
[0038] The core of the present application is to provide a ratchet pawl clutch operating state detection method, device and medium, so as to more accurately and timely realize the detection of the operating state of the ratchet pawl clutch.
[0039] In order for those skilled in the art to better understand the present application, the present application will be further described in detail below with reference to the drawings and specific embodiments.
[0040] Figure 1 A flow chart of a ratchet pawl clutch operating state detection method provided by the present application is shown in Figure 1 The method comprises the following steps.
[0041] S10: acquiring operating data of each pawl; the operating data comprises acceleration data and displacement data of each pawl when knocking the ratchet each time, and actual knocking strength of each pawl when knocking the ratchet each time calculated according to the acceleration data and the displacement data;
[0042] S11: extracting feature data of each pawl from the operating data;
[0043] S12: comparing the feature data with standard values, and confirming the operating state of each pawl according to the comparison result.
[0044] The present application provides a ratchet pawl clutch operating state detection method, which is used to realize the state detection of the ratchet pawl clutch, and then the service life of the ratchet pawl clutch can be inferred. The execution subject of the method can be a ratchet pawl clutch device. In specific implementation, the device can collect the operating data of the ratchet pawl clutch through internal sensors or external sensors, and then confirm the operating state of the ratchet pawl clutch through data analysis. In the present application, the operating state of the ratchet pawl clutch is mainly reflected in whether the operating data of each pawl is normal.
[0045] Therefore, in step S10, the operation data of each pawl is collected by the sensor. According to the hardware structure of the ratchet pawl clutch, the operation data of each pawl mainly includes the acceleration data and displacement data of each pawl when it strikes the ratchet each time, and the actual striking force of each pawl when it strikes the ratchet each time is calculated according to the acceleration data and displacement data. In order to accurately obtain the operation data, the displacement data of each pawl can be collected by using an eddy current displacement sensor, and through a high enough sampling frequency, the speed data of each pawl can be calculated according to the displacement data, and then the acceleration data can be calculated. It can be understood that there will be noise when the eddy current displacement sensor collects data, so after collecting data, Kalman filtering algorithm can be used to filter the displacement data collected by the eddy current displacement sensor, so as to reduce interference. It can be understood that the sensor needs to collect the operation data of multiple pawls, so the installation angle and position of each sensor on each pawl need to be consistent to ensure the uniformity and reliability of data collection. In order to accurately capture the displacement and acceleration of the pawl, the eddy current displacement sensor can be installed at important positions of the ratchet pawl clutch, such as the top end of the pawl, the coupling surface and the central shaft.
[0046] In addition to the above operation data, in specific implementation, the working environment data of the ratchet pawl clutch can also be collected, such as temperature information at the striking position or the number of strikes. This is used to identify the abnormal state of the pawl from a more comprehensive and intuitive perspective when confirming the operation state of each pawl subsequently.
[0047] Step S11 is used to extract feature data from the operation data, and then confirm the operation state of the pawl through the feature data in the subsequent step. Extracting feature data not only can efficiently identify the abnormal working data of the pawl, but also can reduce the amount of calculation. Among them, the feature data can be various, including the maximum acceleration, displacement change rate and average striking force of each pawl; when extracting and comparing subsequently, only one kind of feature data can be compared, of course, in order to improve the accuracy of detection, multiple kinds of feature data can be compared at the same time. The extraction of feature data can be extracted from the operation data in a fixed time range, for example, the displacement change rate can be understood as displacement change comparison every fixed time (such as 20 minutes).
[0048] Step S12 compares the characteristic data with the standard value, and confirms the operation state of each pawl according to the comparison result, wherein the operation state of each pawl includes normal, abnormal, overload, wear and the like, and step S12 confirms the state of the pawl according to the difference between the characteristic data and the standard value. For example, if the knocking frequency is reduced and the knocking force is reduced within a certain time, it is considered that the clutch may be damaged, and if the displacement data is reduced and the knocking force is reduced, it is considered that the clutch is worn. Since overload will cause the instantaneous abnormality of each data of the clutch, such as temperature, knocking force and displacement, overload can be judged according to the transient change of the data, and generally, overload is accompanied by damage or wear of the clutch.
[0049] The operation state detection method of the ratchet pawl clutch provided by the present application can solve the problems of untimely detection and inaccurate detection in the current technology which relies on manual inspection. The acceleration data and displacement data of each pawl when knocking the ratchet each time, and the actual knocking force are collected, and the characteristic data is extracted therefrom, and the characteristic data is compared with the standard value to confirm the operation state of each pawl. By using the technical solution, the various operation data of the pawl are collected by the sensor, the data can be collected in real time and continuously by relying on the setting of the sensor, the detection accuracy is improved by diversifying the types of collected data, and more timely and accurate operation state detection of the ratchet pawl clutch is realized.
[0050] In the above embodiment, the operation state of each pawl is detected by the characteristic data of each pawl, and for a qualified ratchet pawl clutch, the operation data of each pawl inside the clutch should be the same, and even if there is an error, it should be very small. Therefore, on the basis of the above embodiment, in the present embodiment, it is further judged whether the deviation of the operation data between each pawl when knocking each time is within a preset range, and if yes, it is confirmed that the detected clutch is a standard clutch.
[0051] On the basis of the above embodiment, the service life of the ratchet pawl clutch is predicted in the present embodiment. After the step of confirming that the detected clutch is a standard clutch, it further includes confirming the change trend of each data according to the operation data of any pawl, comparing the change trend with the calibrated change trend in the database, and deducing the service life of the detected clutch.
[0052] In the embodiment, the establishment of the database comprises: fatigue test is performed on the ratchet pawl clutch of a fixed model, different loads and working conditions are set through the test, and performance degradation of each sample during repeated knocking is recorded. Each test data is recorded by the system to establish the database. The database contains temperature, load, vibration frequency, working time and corresponding failure conditions, so that comprehensive data analysis and comparison can be performed to obtain the knocking life and failure characteristics of the pawl under different conditions. Through deep learning and machine learning analysis of the data obtained from the fatigue test, combined with real-time monitoring state information, a mathematical model is constructed to realize prediction of the remaining service life of the clutch. The embodiment combines real-time monitoring data and the established fatigue test database to realize scientific prediction of the remaining service life of the ratchet pawl clutch through intelligent algorithm. The prediction capability helps users to master the health status of the clutch, and maintenance or replacement can be performed at appropriate time, which greatly improves the operation reliability of the equipment.
[0053] In the above embodiment, the ratchet pawl clutch operating state detection method is described in detail, and the present application also provides a corresponding embodiment of the ratchet pawl clutch operating state detection device. It should be noted that the embodiments of the device part are described from two angles, one is based on the functional module angle, and the other is based on the hardware angle.
[0054] Figure 2 A structure diagram of a ratchet pawl clutch operating state detection device provided in the embodiment of the present application, comprising:
[0055] The acquisition module 10 is configured to acquire operating data of each pawl, wherein the operating data comprises acceleration data and displacement data of each pawl when the pawl knocks the ratchet each time, and actual knocking strength of each pawl when the pawl knocks the ratchet each time calculated according to the acceleration data and the displacement data.
[0056] The extraction module 11 is configured to extract feature data of each pawl from the operating data.
[0057] The comparison module 12 is configured to compare the feature data with a standard value, and confirm the operating state of each pawl according to a comparison result.
[0058] Since the embodiments of the device part correspond to the embodiments of the method part, the embodiments of the device part are described in the description of the embodiments of the method part, which will not be described here.
[0059] The ratchet pawl clutch running state detection device provided by the present application can include, but is not limited to, a smart phone, a tablet computer, a notebook computer, or a desktop computer, etc.
[0060] Figure 3 The structure diagram of another ratchet pawl clutch running state detection device provided by the present application embodiment is shown in FIG. 2, which comprises a memory 20 for storing a computer program. Figure 3
[0061] The processor 21 is used to execute the computer program to realize the steps of the ratchet pawl clutch running state detection method as described in the above embodiment.
[0062] The ratchet pawl clutch running state detection device provided by the present application embodiment can include, but is not limited to, a smart phone, a tablet computer, a notebook computer, or a desktop computer, etc.
[0063] The processor 21 can include one or more processing cores, such as a 4-core processor, an 8-core processor, etc. The processor 21 can be implemented in at least one of a hardware form of a Digital Signal Processing (DSP), a Field-Programmable Gate Array (FPGA), and a Programmable Logic Array (PLA). The processor 21 can also include a main processor and a coprocessor. The main processor is a processor for processing data in an awake state, also known as a Central Processing Unit (CPU). The coprocessor is a low-power processor for processing data in a standby state. In some embodiments, the processor 21 can be integrated with a Graphics Processing Unit (GPU) for rendering and drawing the content required to be displayed by the display screen. In some embodiments, the processor 21 can also include an Artificial Intelligence (AI) processor for processing machine learning-related computing operations.
[0064] The memory 20 can include one or more computer-readable storage media that can be non-transitory. The memory 20 can also include high-speed random access memory and nonvolatile, computer-readable storage media such as one or more magnetic disk storage devices, flash memory devices. In this embodiment, the memory 20 is at least used to store the following computer program 201, wherein the computer program is loaded and executed by the processor 21, and can realize the related steps of the ratchet and pawl clutch operating state detection method disclosed in any of the preceding embodiments. In addition, the resources stored by the memory 20 can also include an operating system 202 and data 203, etc., and the storage mode can be temporary storage or permanent storage. The operating system 202 can include Windows, Unix, Linux, etc. The data 203 can include but is not limited to running data, feature data, etc.
[0065] In some embodiments, the ratchet and pawl clutch operating state detection device can further include a display screen 22, an input / output interface 23, a communication interface 24, a power supply 25, and a communication bus 26.
[0066] Those skilled in the art can understand that, Figure 3 The structure shown in the above-mentioned embodiments does not constitute a limitation on the ratchet and pawl clutch operating state detection device, and can include more or fewer components than those shown in the drawings.
[0067] The ratchet and pawl clutch operating state detection device provided by the embodiments of the present application includes a memory and a processor, and the processor can realize the steps of the ratchet and pawl clutch operating state detection method as described in the above-mentioned embodiments when executing the program stored in the memory.
[0068] Finally, the present application also provides an embodiment corresponding to a computer-readable storage medium. The computer-readable storage medium stores a computer program, and the computer program is executed by the processor to realize the steps recorded in the above-mentioned method embodiments.
[0069] It can be understood that if the method in the above-mentioned embodiments is realized in the form of a software function unit and sold or used as an independent product, it can be stored in a computer-readable storage medium. Based on such understanding, the technical solutions of the present application essentially or the part that contributes to the prior art or the whole or part of the technical solutions can be embodied in the form of a software product. The computer software product is stored in a storage medium, and executes all or part of the steps of the method described in the embodiments of the present application. The foregoing storage medium includes: a U disk, a mobile hard disk, a read-only memory (Read-Only Memory, ROM), a random access memory (Random Access Memory, RAM), a magnetic disk or an optical disk, and various media that can store program codes.
[0070] The ratchet pawl clutch operating state detection method, device and medium provided by the present application are described in detail above. Each embodiment in the description is described in a progressive manner, and each embodiment focuses on the differences from other embodiments. The same or similar parts of each embodiment can be understood by referring to each other. It should be pointed out that those skilled in the art can make some improvements and modifications to the present application without departing from the principles of the present application, and these improvements and modifications also fall within the protection scope of the claims of the present application.
Claims
1. A method for detecting the operating status of a ratchet and pawl clutch, characterized in that, include: Obtain the operating data of each pawl; the operating data includes the acceleration data and displacement data of each pawl when it strikes the ratchet each time, and calculate the actual striking force of each pawl when it strikes the ratchet each time based on the acceleration data and the displacement data; Extract the feature data of each pawl from the operational data; The feature data is compared with the standard value, and the operating status of each pawl is confirmed based on the comparison results.
2. The method for detecting the operating status of a ratchet and pawl clutch according to claim 1, characterized in that, The characteristic data include: maximum acceleration and / or rate of change of displacement and / or average impact force.
3. The method for detecting the operating status of a ratchet and pawl clutch according to claim 1, characterized in that, Also includes: Determine whether the deviation of the running data between each pawl is within the preset range during each tap; If so, then the clutch being tested is confirmed to be a standard clutch.
4. The method for detecting the operating status of a ratchet and pawl clutch according to claim 3, characterized in that, After confirming that the test clutch is a standard clutch, the following steps are also included: Confirm the trend of each data point based on the operating data of any pawl; The change trend is compared with the calibration change trend in the database to deduce the service life of the detection clutch.
5. The method for detecting the operating status of a ratchet and pawl clutch according to claim 1, characterized in that, The acquisition of operational data for each pawl includes: Displacement data of each pawl is collected using an eddy current displacement sensor. Calculate the acceleration data of each pawl based on the displacement data.
6. The method for detecting the operating state of a ratchet and pawl clutch according to claim 5, characterized in that, Also includes: The displacement data acquired by the eddy current displacement sensor is filtered using the Kalman filter algorithm.
7. The method for detecting the operating state of a ratchet and pawl clutch according to claim 5, characterized in that, The eddy current displacement sensor is positioned at the top of the pawl, the connecting surface between the ratchet and the pawl, or around the central shaft.
8. A device for detecting the operating status of a ratchet and pawl clutch, characterized in that, include: The acquisition module is used to acquire the operating data of each pawl; the operating data includes the acceleration data and displacement data of each pawl when it strikes the ratchet each time, and calculates the actual striking force of each pawl when it strikes the ratchet each time based on the acceleration data and the displacement data; The extraction module is used to extract feature data of each pawl from the running data; The comparison module is used to compare the feature data with the standard value and confirm the operating status of each pawl based on the comparison result.
9. A device for detecting the operating status of a ratchet and pawl clutch, characterized in that, include: Memory, used to store computer programs; A processor, configured to execute the computer program to implement the steps of the ratchet pawl clutch operating state detection method as described in any one of claims 1 to 7.
10. A computer-readable storage medium, characterized in that, The computer-readable storage medium stores a computer program that, when executed by a processor, implements the steps of the ratchet and pawl clutch operating state detection method as described in any one of claims 1 to 7.