Tension testing method and device based on metal rope

Abstract

The invention discloses a tension testing method and device based on a metal rope, and relates to the technical field of mechanical stress testing. According to the tension test method and device based on the metal rope, the transition wheel selection demand information is obtained based on the basic information of the target test metal rope, and the transition wheel required by the tension test equipment of the target test metal rope is selected by using the transition wheel selection demand information; the metal rope testing process of the tension testing equipment after the required transition wheel is deployed is monitored in real time; acquiring metal rope deformation information and metal rope breakage instantaneous information in the process of monitoring the metal rope by the tension test equipment in real time; and analyzing by combining the test parameter information with the metal rope deformation information, the metal rope breakage instantaneous information and each tension test record of the metal rope to obtain a safety performance test value of the metal rope, and automatically generating a tension test report of the metal rope, thereby solving the problems that the traditional metal rope tension test needs a larger test space and the test efficiency is low. And test result analysis has subjectivity.

Description

Technical Field

[0001] The invention relates to the technical field of mechanical stress testing, and in particular to a tension testing method and device based on a metal rope. Background Art

[0002] When conducting tensile tests on wire ropes, it is usually necessary to ensure the safety of operators and equipment. Using metal ropes as test objects can reduce the risk of accidents, because metal ropes are relatively strong and durable, and can withstand large tensile forces without breaking easily. However, the length of metal ropes is quite long, and if tensile tests are performed directly on them, a large test space is required. With a design based on a transition wheel, the metal rope can be wound around the transition wheel, thereby reducing the overall length and saving test space.

[0003] The traditional tensile testing method is complicated to operate and has high risks. In addition, the tensile testing requirements of metal ropes of different lengths and diameters are different. Therefore, the tensile testing requirements of metal ropes of different lengths and diameters must also be considered. The tensile testing method and device for metal ropes are expected to improve testing efficiency and make the testing process simpler and faster.

[0004] For example, the Chinese invention patent with the announcement number CN109540662B discloses a square full-ear battery cell welding tensile test method, which belongs to the field of battery testing technology. The method includes the following steps: preparing a battery cell test body, the battery cell test body includes an ear and a soft connection welded on the ear; the ear includes two or more layers of stacked current collectors, and the soft connection is welded on the outermost surface of the ear; stretching the parts on both sides of the soft connection on the battery cell test body in opposite directions, and testing the tensile force when the soft connection is disconnected from the ear or the tensile force when the ear is disconnected from the ear is the welding tensile force. The present invention prepares a battery cell test body by cutting the actual battery cell or using the same process and materials to prepare a battery cell test body with the same number of electrode layers and the same ear welding morphology as the actual battery cell; since the prepared battery cell test body is equivalent to the actual battery cell, the welding tensile test result of the battery cell test body can truly reflect the welding effect of the actual battery cell.

[0005] However, the above-mentioned square full-tab battery core welding tensile test method lacks numerical analysis of the tensile test results and lacks verification of the reliability of the test.

[0006] Therefore, there is an urgent need for a tension testing method and device based on a metal rope. Summary of the invention

[0007] In view of the deficiencies in the prior art, the present invention provides a tension testing method and device based on a metal rope, which solves the problems that the traditional metal rope tension test requires a large testing space, has high risks, and the analysis of test results is subjective.

[0008] To achieve the above objectives, the present invention is implemented through the following technical solutions: a tension test method based on a metal rope, comprising the following steps: obtaining transition wheel selection requirement information based on basic information of a target test metal rope, selecting the transition wheel required by the tension test equipment of the target test metal rope using the transition wheel selection requirement information, and then real-time monitoring of the metal rope testing process of the tension test equipment after the required transition wheel is deployed; obtaining metal rope deformation information and metal rope fracture instantaneous information of the real-time monitoring tension test equipment testing the metal rope process; combining the test parameter information with the metal rope deformation information, the metal rope fracture instantaneous information and each tension test record of the metal rope for analysis to obtain the safety performance test value of the metal rope, and automatically generate a tension test report of the metal rope.

[0009] Furthermore, the specific process of obtaining the transition wheel selection requirement information is: obtaining the basic information of the target test metal rope, the basic information of the target test metal rope specifically includes: the diameter of the target test metal rope, the surface friction coefficient of the target test metal rope; matching the basic information of the target test metal rope with the maximum load of the transition wheel stored in the database, and based on the expected transition wheel usage and the expected load analysis of the transition wheel, obtaining the transition wheel selection requirement information, the transition wheel selection requirement information specifically includes: the diameter of the transition wheel, the surface friction coefficient of the transition wheel, the service life of the transition wheel, and the load of the transition wheel.

[0010] Furthermore, the specific analysis process for selecting the transition wheel required for the tension test equipment of the target test metal rope is as follows: weighted analysis is performed based on the diameter of the transition wheel, the surface friction coefficient of the transition wheel, the service life of the transition wheel, and the load of the transition wheel to obtain a comprehensive evaluation index of the transition wheel, and the comprehensive evaluation index of the transition wheel is used to numerically summarize the basic condition of the transition wheel; the comprehensive evaluation index of the transition wheel is compared one by one with the comprehensive evaluation index of each existing transition wheel stored in the database, and the transition wheel stored in the database with the smallest difference in the comprehensive evaluation index is selected as the transition wheel required for the tension test equipment of the target test metal rope.

[0011] Furthermore, the specific calculation formula of the comprehensive evaluation index of the transition wheel is: ; In the formula represents the comprehensive evaluation index of the transition wheel, Indicates the diameter of the transition wheel, represents the surface friction coefficient of the transition wheel, Indicates the service life of the transition wheel. Indicates the load of the transition wheel, Indicates the reference value of the transition wheel diameter, Indicates the reference value of the friction coefficient of the transition wheel surface, Indicates the reference value of transition wheel service life. Indicates the reference value of the transition pulley load, represents the weight factor of the transition wheel diameter, The weight factor representing the friction coefficient of the transition wheel surface, The weight factor representing the service life of the transition wheel, Represents the weight factor of the transition wheel load.

[0012] Furthermore, the specific method of obtaining the safety performance test value of the metal rope is: recording each tension test information of the metal rope, and obtaining the durability performance test value of the metal rope based on the analysis of each tension test information of the metal rope; analyzing the metal rope deformation information and the metal rope fracture instantaneous information obtained during each metal rope test of the real-time monitoring tension test equipment respectively to obtain the load-deformation performance test value of the metal rope; and performing a comprehensive analysis based on the durability performance test value of the metal rope and the load-deformation performance test value of the metal rope to obtain the safety performance test value of the metal rope.

[0013] Furthermore, the specific calculation formula of the safety performance test value of the metal rope is: ; In the formula Indicates the safety performance test value of the metal rope. Indicates the durability test value of the metal rope. Indicates the load-deformation performance test value of the metal rope. Represents the weighting factor of the durability test value, A weighting factor that represents the load-deformation performance test value.

[0014] Furthermore, the specific analysis process for obtaining the durability performance test value of the metal rope is as follows: each tension test information of the metal rope specifically includes: the fatigue life of the metal rope, the strain hardening index of the metal rope; by performing weighted analysis on the fatigue life of the metal rope and the strain hardening index of the metal rope, the durability performance test value of the metal rope is obtained, and the durability performance test value of the metal rope is used to numerically represent the specific conditions of the durability reliability of the metal rope.

[0015] Furthermore, the specific analysis process for obtaining the load-deformation performance test value of the metal rope is as follows: the deformation information of the metal rope specifically includes: the slope of the tensile stress-strain curve, the elongation at break; the instantaneous information of the metal rope fracture specifically includes: the instantaneous tension at break; the load-deformation performance test value of the metal rope is obtained by performing a weighted analysis on the slope of the tensile stress-strain curve, the elongation at break and the instantaneous tension at break, and the load-deformation performance test value of the metal rope is used to numerically represent the comprehensive condition of the safe load capacity and fracture strength of the metal rope.

[0016] Furthermore, the tension test report of the metal rope specifically includes: the transition wheel of the tension test equipment selected for the metal rope tension test, the durability performance test value of the metal rope, the load-deformation performance test value of the metal rope, the safety performance test value of the metal rope, and the tension test analysis result of the metal rope; the tension test analysis result of the metal rope specifically includes: comparing and analyzing the safety performance test value of the metal rope with the safety performance threshold of the metal rope stored in the database, judging that the metal rope with a safety performance test value greater than or equal to the safety performance threshold of the metal rope has passed the tension test, and marking the metal rope with a safety performance test value less than the safety performance threshold of the metal rope as failing the tension test.

[0017] A tension test device based on a metal rope, using the above-mentioned tension test method based on a metal rope, comprises: a transition wheel selection module, used to obtain transition wheel selection requirement information based on basic information of a target test metal rope, and use the transition wheel selection requirement information to select the transition wheel required by the tension test equipment of the target test metal rope, and then perform real-time monitoring on the metal rope testing process of the tension test equipment after the required transition wheel is deployed; an information acquisition module, used to obtain metal rope deformation information and metal rope fracture instantaneous information of the real-time monitoring of the metal rope testing process of the tension test equipment; a safety performance test module, used to combine the test parameter information with the metal rope deformation information, the metal rope fracture instantaneous information and each tension test record of the metal rope for analysis, obtain the safety performance test value of the metal rope, and automatically generate a tension test report of the metal rope.

[0018] The present invention has the following beneficial effects: (1) A tension test method and device based on a metal rope can accurately select a suitable transition wheel based on the basic information of the metal rope and the transition wheel selection requirement information, ensure the matching of the test equipment and the metal rope, and improve the accuracy and reliability of the test. By real-time monitoring of the process of testing the metal rope by the tension test equipment, the deformation information and instantaneous fracture information of the metal rope can be captured in time, providing real-time data support for subsequent analysis and evaluation; combined with the test parameter information, deformation information, fracture information and test records, a comprehensive analysis and evaluation can be carried out, which can more comprehensively understand the safety performance of the metal rope and provide a reliable basis for the design and use of the metal rope; according to the analysis results, a tension test report of the metal rope is automatically generated, saving labor costs, improving work efficiency, and ensuring the accuracy and readability of the report.

[0019] (2) The method and device for tensile testing of metal ropes adopt data processing technology to conduct tensile testing on the metal ropes with different lengths and diameters, which are complicated to operate and have high risks. The tensile testing requirements of metal ropes are different. The tensile testing device is used to conduct tensile testing, and the tensile testing process and results are numerically analyzed. The safety performance test value of the metal rope obtained by comprehensive analysis of the fatigue life of the metal rope, the strain hardening index of the metal rope, the slope of the tensile stress-strain curve, and the elongation at break can comprehensively test and evaluate the safety performance of the metal rope, discover potential safety hazards, and take measures in advance, thereby improving the safety and reliability of the metal rope during use, and providing more reliable technical support and guarantee for the design, production and application of the metal rope.

[0020] Of course, any product implementing the present invention does not necessarily need to achieve all of the advantages described above at the same time. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 The present invention is a flow chart of a tension test method based on a metal rope.

[0022] Figure 2 This is a structural diagram of a tension testing device based on a metal rope according to the present invention. DETAILED DESCRIPTION

[0023] The embodiments of the present application provide a tension test method and device based on a metal rope, thereby solving the problems that a traditional metal rope tension test requires a large test space, has high risks, and has subjective analysis of test results.

[0024] The overall idea of ​​the problem in the embodiment of this application is as follows: Collect the basic information of the target test metal rope, match the transition wheel selection requirement information according to the basic information of the test metal rope, select the appropriate transition wheel, and deploy it on the tension test equipment. During the tension test, monitor the deformation information and instantaneous fracture information of the metal rope in real time, including strain, load, and fracture shape, record the real-time monitored data, and combine the test parameter information and test records to collect and organize data to obtain the safety performance test value of the metal rope. According to the analysis results, automatically generate a tension test report for the metal rope, including the test process and test results.

[0025] See also Figure 1The embodiment of the present invention provides a technical solution: a tension test method based on a metal rope, comprising the following steps: obtaining transition wheel selection requirement information based on basic information of a target test metal rope, selecting the transition wheel required by the tension test equipment of the target test metal rope using the transition wheel selection requirement information, and then real-time monitoring of the metal rope testing process of the tension test equipment after the required transition wheel is deployed; obtaining metal rope deformation information and metal rope fracture instantaneous information of the real-time monitoring tension test equipment testing metal rope process; combining the test parameter information with the metal rope deformation information, the metal rope fracture instantaneous information and each tension test record of the metal rope for analysis to obtain the safety performance test value of the metal rope, and then automatically generating a tension test report for the metal rope.

[0026] Specifically, the specific process of obtaining the transition wheel selection requirement information is: obtaining the basic information of the target test metal rope, the basic information of the target test metal rope includes: the diameter of the target test metal rope, the surface friction coefficient of the target test metal rope; matching the basic information of the target test metal rope with the maximum load requirement of the transition wheel stored in the database, and based on the expected transition wheel usage and the expected load analysis of the transition wheel, obtaining the transition wheel selection requirement information, the transition wheel selection requirement information includes: the diameter of the transition wheel, the surface friction coefficient of the transition wheel, the service life of the transition wheel, and the load of the transition wheel.

[0027] In this embodiment, the transition wheel is used to bypass the wire rope so that the overall length is smaller and it can also play a protective role during testing; in the tension test device based on metal rope, the transition wheel refers to a roller, whose function is to change the direction of the metal rope so that it can smoothly transmit tension in the test device. The transition wheel is usually installed in the turning or bending part of the test device. When the metal rope passes through the transition wheel, its direction will change, so that the rope can maintain relatively stable tension transmission in the entire system; in the process of selecting and installing the transition wheel, it is necessary to consider the diameter and material of the metal rope, the design layout of the test device and the friction factor on the surface of the metal rope, and be equipped with an appropriate bearing system to ensure smooth operation.

[0028] Obtain the diameter of the target test metal rope from existing data or by measuring the metal rope; determine the surface friction coefficient of the target test metal rope based on experimental or reference data; query the database to obtain the stored maximum load requirement information of the transition wheel, and determine the maximum load requirement of the transition wheel corresponding to the diameter and surface friction coefficient of the target test metal rope; analyze the friction between the target test metal rope and the transition wheel, including static friction and dynamic friction, and consider the load changes that the transition wheel may bear during use, and determine the diameter of the transition wheel based on the analysis results to ensure that the metal rope can pass through the transition wheel smoothly and will not be excessively worn; determine the surface friction coefficient of the transition wheel to ensure that the friction between the metal rope and the transition wheel meets the test requirements; estimate the service life of the transition wheel, considering the use of the metal rope and the durability of the transition wheel; determine the load capacity of the transition wheel to ensure that the transition wheel can withstand the maximum load requirement of the metal rope; based on the above-mentioned transition wheel selection requirement information analysis, select the appropriate transition wheel model and specification stored in the database.

[0029] By obtaining the basic information of the target test metal rope and matching it with the maximum load requirement of the transition wheel stored in the database, it can be ensured that the selected transition wheel can match the metal rope, meet the test requirements, and reduce the safety hazards that may be caused by mismatching; based on the expected transition wheel usage and the expected load analysis of the transition wheel, the transition wheel selection requirement information is obtained, which can more accurately predict the service life and load capacity of the transition wheel, thereby improving the accuracy and reliability of the test; analyzing the usage of the transition wheel and selecting a suitable transition wheel based on the demand information can extend the service life of the transition wheel, reduce the frequency of transition wheel replacement, reduce problems and interruptions during the test, save time and labor costs, and avoid additional costs caused by inappropriate transition wheel selection.

[0030] Specifically, the specific analysis process of selecting the transition wheel required for the tensile test equipment of the target test metal rope is as follows: weighted analysis is performed based on the diameter of the transition wheel, the surface friction coefficient of the transition wheel, the service life of the transition wheel, and the load of the transition wheel to obtain the comprehensive evaluation index of the transition wheel. The comprehensive evaluation index of the transition wheel is used to numerically summarize the basic conditions of the transition wheel. In addition to testing the target test metal rope through a professional organization, analyzing the corresponding required transition wheel, and then obtaining the comprehensive evaluation index of the transition wheel, the comprehensive evaluation index of the transition wheel can also be obtained through calculation. The specific calculation formula for the comprehensive evaluation index of the transition wheel is: ; In the formula represents the comprehensive evaluation index of the transition wheel, Indicates the diameter of the transition wheel, represents the surface friction coefficient of the transition wheel, Indicates the service life of the transition wheel. Indicates the load of the transition wheel, Indicates the reference value of the transition wheel diameter stored in the database, Indicates the reference value of the friction coefficient of the transition wheel surface stored in the database, Indicates the reference value of the transition wheel service life stored in the database, Indicates the reference value of the transition wheel load stored in the database, The weight factor of the transition wheel diameter indicates the influence of the transition wheel diameter on the transition wheel selection. The weight factor of the transition wheel surface friction coefficient indicates the influence of the transition wheel surface friction coefficient on the transition wheel selection. The weight factor of the transition wheel service life indicates the influence of the transition wheel service life on the transition wheel selection. The weight factor representing the transition wheel load represents the influence of the transition wheel load on the transition wheel selection; the comprehensive evaluation index of the transition wheel is compared with the comprehensive evaluation indexes of each existing transition wheel stored in the database, and the transition wheel stored in the database with the smallest difference in comprehensive evaluation index is selected as the transition wheel required for the tensile test equipment of the target test metal rope.

[0031] In this implementation scheme, parameters such as the diameter, surface friction coefficient, service life and load of the transition wheel are determined, and these parameters are weighted to reflect their importance in the selection of the transition wheel; the comprehensive evaluation index of each existing transition wheel, as well as their diameter, surface friction coefficient, service life and load related information are extracted from the database, the requirements of the target test metal rope are compared with the various transition wheels stored in the database, the difference in the comprehensive evaluation index between the requirements of the target test metal rope and the requirements of each transition wheel is calculated, and the transition wheel with the smallest difference in the comprehensive evaluation index is selected as the transition wheel required for the tension test equipment of the target test metal rope, and based on the selected transition wheel, its model and specification are confirmed.

[0032] The diameter of the transition wheel indicates the diameter of the transition wheel, which directly affects its matching with the metal rope and its load capacity; the surface friction coefficient of the transition wheel indicates the friction performance of the transition wheel surface, which affects its stability and efficiency during use; the service life of the transition wheel indicates the life span of the transition wheel in actual use, that is, the length of time it can be used; the load of the transition wheel indicates the maximum load capacity that the transition wheel can withstand, which directly affects its safety and stability during the test; by comprehensively considering the diameter, surface friction coefficient, service life and load of the transition wheel, the performance and applicability of the transition wheel can be more comprehensively evaluated, avoiding the one-sidedness and insufficiency caused by a single indicator evaluation; weighted analysis of various indicators can quantify the performance of the transition wheel into a comprehensive evaluation index. The comprehensive evaluation index of different transition wheels is different. Therefore, the comprehensive evaluation index of the transition wheel is used to select the transition wheel required for the tensile test equipment of the target test metal rope, which is convenient for comparing and selecting the advantages and disadvantages of different transition wheels, and providing a more intuitive reference for decision-making.

[0033] Specifically, in addition to simulating the tension test process of the metal rope through computer simulation software and analyzing its safety performance status to obtain the safety performance test value, the safety performance test value of the metal rope can also be obtained through calculation. The specific method of obtaining the safety performance test value of the metal rope is as follows: recording each tension test information of the metal rope, and obtaining the durability performance test value of the metal rope based on the analysis of each tension test information of the metal rope; analyzing the deformation information of the metal rope and the instantaneous information of the metal rope fracture obtained by the real-time monitoring of the tension test equipment during each test of the metal rope, respectively, to obtain the load-deformation performance test value of the metal rope; combining the durability performance test value of the metal rope with the load-deformation performance test value of the metal rope for comprehensive analysis to obtain the safety performance test value of the metal rope. The specific calculation formula of the safety performance test value of the metal rope is: ; In the formula Indicates the safety performance test value of the metal rope. Indicates the durability test value of the metal rope. Indicates the load-deformation performance test value of the metal rope. The weight factor of the durability test value indicates the importance of the durability test value to the safety performance test. The weight factor representing the load-deformation performance test value represents the importance of the load-deformation performance test value to the safety performance test.

[0034] In this implementation, each time a tensile test is performed on the metal rope, the basic information of the test is recorded. The basic information includes the tensile force value applied during the test and the test time, and the state of the metal rope after the test is recorded. The state includes whether the metal rope is damaged and the deformation condition. According to the data of each tensile test of the metal rope, the performance of the metal rope under different tensile forces is analyzed. When the metal rope breaks, the instantaneous fracture information is recorded, and the durability test value of the metal rope and the load-deformation performance test value are comprehensively analyzed, considering the durability and load-bearing capacity of the metal rope to evaluate its safety performance.

[0035] Through the durability test and the load-deformation performance test, the performance of the metal rope under different conditions can be comprehensively evaluated, including its durability during long-term use and its deformation characteristics under load, so as to more accurately understand the overall performance of the metal rope. By comprehensively analyzing the durability and load-deformation performance of the metal rope, the safety performance of the metal rope can be more accurately evaluated. The durability test can reflect the service life and long-term durability of the metal rope, while the load-deformation performance test can evaluate the deformation of the metal rope under load. Combining the two can more comprehensively evaluate the safety performance of the metal rope.

[0036] Specifically, the durability test value of the metal rope can be obtained not only by using computer simulation software to simulate the durability of the metal rope and analyze its durability status, but also by calculation. The specific analysis process for obtaining the durability test value of the metal rope is as follows: The information of each tensile test of the metal rope specifically includes the fatigue life of the metal rope and the strain hardening index of the metal rope. By performing weighted analysis on the fatigue life of the metal rope and the strain hardening index of the metal rope, the durability test value of the metal rope is obtained. The durability test value of the metal rope is used to numerically represent the specific status of the durability reliability of the metal rope. The calculation formula for the durability test value of the metal rope is: ; In the formula represents the durability test value of the metal rope, represents the serial number of each tensile test of the metal rope, , represents the total number of tensile tests of the metal rope, represents the fatigue life of the metal rope, represents the strain hardening index of the th tensile test, represents the reference value of the fatigue life of the metal rope stored in the database, represents the reference value of the strain hardening index of the metal rope stored in the database, The weight factor representing the strain hardening exponent of the metal rope represents the influence of the strain hardening exponent of the metal rope on the durability test of the metal rope.

[0037] In this implementation scheme, a tension test is performed on the metal rope, and the tension value and test time of each test are recorded. At the same time, the state of the metal rope is recorded before and after each test, including whether there is any damage or deformation. Based on the tension test data of the metal rope, the least squares method is used to fit the fatigue life curve of the metal rope, and then its fatigue life is analyzed. The metal rope is subjected to a tensile test, and the strain and stress data are recorded. The strain hardening index of the metal rope is calculated through the strain-stress curve. The strain hardening index can reflect the deformation and hardening of the metal rope during the stress process.

[0038] The fatigue life of a metal rope indicates the number of cycles or time that the metal rope can withstand under cyclic loads, and is an important indicator for evaluating the fatigue performance of the metal rope. The strain hardening index indicates the change in hardness of a metal material during strain change, and reflects the plastic deformation capacity and hardness change characteristics of the metal rope material, and is an important indicator for evaluating the performance of the metal rope material itself. By weighted analysis of the fatigue life and strain hardening index of the metal rope, the fatigue performance and material hardening characteristics of the metal rope are comprehensively considered, and the durability of the metal rope can be evaluated more comprehensively, avoiding the one-sidedness and insufficiency of a single indicator evaluation. The durability test value obtained after weighted analysis of the fatigue life and strain hardening index can numerically represent the specific status of the durability reliability of the metal rope, providing users with intuitive evaluation indicators, which is helpful for decision-making and comparison of the performance of different metal ropes. The numerical representation of the durability reliability of the metal rope can quickly compare the performance advantages and disadvantages of different metal ropes, reduce decision-making time and cost, and improve decision-making efficiency.

[0039] Specifically, in addition to simulating the load-deformation of the metal rope through computer simulation software and analyzing its safe load capacity and breaking strength to obtain the load-deformation performance test value of the metal rope, the specific analysis process for obtaining the load-deformation performance test value of the metal rope is as follows: the deformation information of the metal rope specifically includes: the slope of the tensile stress-strain curve, the elongation at break; the instantaneous information of the metal rope breaking specifically includes: the instantaneous tensile force at break; the load-deformation performance test value of the metal rope is obtained by weighted analysis of the slope of the tensile stress-strain curve, the elongation at break and the instantaneous tensile force at break. The load-deformation performance test value of the metal rope is used to numerically represent the comprehensive condition of the safe load capacity and breaking strength of the metal rope. The calculation formula of the load-deformation performance test value of the metal rope is: ; In the formula Indicates the load-deformation performance test value of the metal rope. represents the slope of the tensile stress-strain curve, represents the elongation at break, is the instantaneous tensile force at break, Represents the reference value of the slope of the tensile stress-strain curve stored in the database, Indicates the reference value of elongation at break stored in the database, Indicates the instantaneous tensile force reference value of fracture stored in the database. The weight factor representing the slope of the tensile stress-strain curve represents the influence of the slope of the tensile stress-strain curve on the comprehensive condition of the safe load capacity and breaking strength of the metal rope. The weight factor of the elongation at break indicates the influence of the elongation at break on the comprehensive condition of the safe load capacity and breaking strength of the metal rope. The weight factor of the instantaneous tensile force at break indicates the influence of the instantaneous tensile force at break on the comprehensive condition of the safe load capacity and breaking strength of the metal rope.

[0040] In this implementation scheme, a tensile test is performed on the metal rope, the data of the tensile stress-strain curve is recorded, and the slope is calculated from the tensile stress-strain curve; when the metal rope breaks, the instantaneous tensile force at break is recorded; the length of the metal rope is measured before and after it breaks, and the elongation at break is calculated; the slope of the tensile stress-strain curve, the elongation at break, and the instantaneous tensile force at break are used to determine the weights of various indicators based on actual conditions, and then a weighted synthesis is performed to evaluate the comprehensive safety load capacity and breaking strength of the metal rope based on the obtained load-deformation performance test values.

[0041] The slope of the tensile stress-strain curve indicates the rate of change between strain and stress of the metal rope when it is subjected to a tensile load, that is, the rate of stress increase under unit strain, which reflects the stiffness and deformation characteristics of the metal rope during the stretching process; the elongation at break indicates the maximum deformation that the metal rope can withstand during the stretching process before breaking, reflecting the ductility of the metal rope under load; the instantaneous tensile force at break indicates the tensile force that the metal rope withstands at the moment of breaking, that is, the maximum tensile force that the metal rope withstands when it reaches the breaking point, which is an important indicator for measuring the fracture strength of the metal rope; by weighted analysis of the slope of the tensile stress-strain curve, the elongation at break and the instantaneous tensile force at break, the deformation characteristics and fracture strength of the metal rope under load are comprehensively considered, and the load-deformation performance of the metal rope can be more comprehensively evaluated, avoiding the one-sidedness and insufficiency of single indicator evaluation; the load-deformation performance test value obtained after weighted analysis of these load-deformation indicators can numerically represent the comprehensive status of the safe load capacity and fracture strength of the metal rope, providing users with intuitive evaluation indicators, which is helpful for decision-making and comparison of the safety performance of different metal ropes.

[0042] Specifically, the tension test report of the metal rope includes: the transition wheel of the tension test equipment selected for the metal rope tension test, the durability performance test value of the metal rope, the load-deformation performance test value of the metal rope, the safety performance test value of the metal rope, and the tension test analysis result of the metal rope; the tension test analysis result of the metal rope is specifically as follows: comparing and analyzing the safety performance test value of the metal rope with the safety performance threshold of the metal rope stored in the database, the metal rope with a safety performance test value greater than or equal to the safety performance threshold of the metal rope passes the tension test, and the metal rope with a safety performance test value less than the safety performance threshold of the metal rope is marked as failing the tension test.

[0043] In this implementation scheme, the safety performance test value of the metal rope is compared and analyzed with the pre-set safety performance threshold, so that the safety performance of the metal rope can be objectively evaluated. Only the metal rope whose safety performance test value reaches or exceeds the safety performance threshold is considered qualified, which helps to ensure that the metal rope has sufficient safety performance in actual use and reduce the risk of accidents; the test results are compared and analyzed with the stored data in the database, so that data visualization management of the metal rope tension test results can be achieved, and qualified and unqualified metal ropes can be marked, so that the quality status of each batch or model of metal ropes can be intuitively understood, which is conducive to taking timely measures to make adjustments and improvements, reducing the subjectivity and error rate of manual judgment, and improving the efficiency and accuracy of test analysis.

[0044] A tension test device based on a metal rope, using the above-mentioned tension test method based on a metal rope, comprises: a transition wheel selection module, used to obtain transition wheel selection requirement information based on basic information of a target test metal rope, and use the transition wheel selection requirement information to select the transition wheel required by the tension test equipment of the target test metal rope, and then perform real-time monitoring on the metal rope testing process of the tension test equipment after the required transition wheel is deployed; an information acquisition module, used to obtain metal rope deformation information and metal rope fracture instantaneous information of the real-time monitoring of the metal rope testing process of the tension test equipment; a safety performance test module, used to combine the test parameter information with the metal rope deformation information, the metal rope fracture instantaneous information and each tension test record of the metal rope for analysis, obtain the safety performance test value of the metal rope, and automatically generate a tension test report of the metal rope.

[0045] In summary, this application has at least the following effects: By real-time monitoring of the process of testing the metal rope by the tension test equipment, the deformation information and the instantaneous fracture information of the metal rope can be obtained in time, thereby improving the accuracy and real-time nature of the test data, and helping to discover potential problems or abnormal situations more promptly; combining the test parameter information, the deformation information and the instantaneous fracture information of the metal rope, as well as the analysis of the previous tension test records, the safety performance of the metal rope can be more comprehensively evaluated, which helps to discover the performance differences of the metal rope under different conditions, and provide reference and guidance for improving the safety performance of the metal rope; automatically generating a tension test report for the metal rope not only saves the time and energy of manually writing the report, but also ensures the consistency and accuracy of the report, making the test results easier to understand and share.

[0046] It should be understood by those skilled in the art that the embodiments of the present invention may be provided as methods and apparatuses. Therefore, the present invention may take the form of a complete hardware embodiment, a complete software embodiment, or an embodiment combining software and hardware aspects. Moreover, the present invention may take the form of a computer program product implemented on one or more computer-usable storage media (including but not limited to disk storage, CD-ROM, optical storage, etc.) containing computer-usable program codes.

[0047] The present invention is described with reference to the structure diagram and flow chart of the apparatus and method according to the embodiment of the present invention. It should be understood that the combination of each module and process in the structure diagram and flow chart can be realized by computer program instructions. These computer program instructions can be provided to a processor of a general-purpose computer, a special-purpose computer, an embedded processor or other programmable data processing device to produce a machine, so that the instructions executed by the processor of the computer or other programmable data processing device generate instructions for implementing the steps in the flow chart. Figure 1 process or multiple processes and structures Figure 1 A device that specifies functionality in a module or modules.

[0048] These computer program instructions may also be stored in a computer-readable memory capable of directing a computer or other programmable data processing device to operate in a specific manner, so that the instructions stored in the computer-readable memory produce an article of manufacture comprising an instruction device, which implements the process Figure 1 process or multiple processes and structures Figure 1 A function specified in a module or multiple modules.

[0049] These computer program instructions can also be loaded onto a computer or other programmable data processing device so that a series of operating steps are executed on the computer or other programmable device to produce a computer-implemented process, thereby providing instructions for implementing the process. Figure 1 process or multiple processes and structures Figure 1Steps of specifying functions in one or more modules.

[0050] Although the preferred embodiments of the present invention have been described, those skilled in the art can make additional changes and modifications to these embodiments once they learn the basic creative concepts. Therefore, the appended claims are intended to be construed to include the preferred embodiments as well as all changes and modifications falling within the scope of the present invention.

[0051] Obviously, those skilled in the art can make various changes and modifications to the present invention without departing from the spirit and scope of the present invention. Thus, if these modifications and variations of the present invention fall within the scope of the claims of the present invention and their equivalent technologies, the present invention is also intended to include these modifications and variations.

Claims

1. A tension test method based on a metal rope, characterized in that: The following steps are involved: Based on the basic information of the target test metal rope, the transition wheel selection requirement information is obtained, and the transition wheel required by the tension test equipment of the target test metal rope is selected by using the transition wheel selection requirement information, so as to conduct real-time monitoring of the metal rope testing process of the tension test equipment after the required transition wheel is deployed; Obtaining real-time monitoring of the deformation information of the metal rope and the instantaneous information of the metal rope breaking during the process of the metal rope being tested by the tension testing equipment; The test parameter information is combined with the metal rope deformation information, the metal rope breakage instantaneous information and the metal rope tension test records to analyze and obtain the safety performance test value of the metal rope, and automatically generate the metal rope tension test report.

2. A tension test method based on a metal rope according to claim 1, characterized in that ,The specific process of obtaining the transition wheel selection requirement information is: Obtaining basic information of the target test metal rope, wherein the basic information of the target test metal rope specifically includes: a diameter of the target test metal rope and a surface friction coefficient of the target test metal rope; According to the basic information of the target test metal rope, the maximum load requirement of the transition wheel stored in the database is matched, and based on the expected usage of the transition wheel and the expected load analysis of the transition wheel, the transition wheel selection requirement information is obtained. The transition wheel selection requirement information specifically includes: the diameter of the transition wheel, the surface friction coefficient of the transition wheel, the service life of the transition wheel, and the load of the transition wheel.

3. A tension test method based on a metal rope according to claim 1, characterized in that ,The specific analysis process of selecting the transition wheel required for the tensile test equipment of the target test metal rope is: A weighted analysis is performed based on the diameter of the transition wheel, the surface friction coefficient of the transition wheel, the service life of the transition wheel, and the load of the transition wheel to obtain a comprehensive evaluation index of the transition wheel, which is used to numerically summarize the basic conditions of the transition wheel; The comprehensive evaluation index of the transition wheel is compared with the comprehensive evaluation indexes of each existing transition wheel stored in the database, and the transition wheel stored in the database with the smallest difference in comprehensive evaluation index is selected as the transition wheel required for the tension test equipment of the target test metal rope.

4. A tension test method based on a metal rope according to claim 3, characterized in that ,The specific calculation formula of the comprehensive evaluation index of the transition wheel is: ； In the formula represents the comprehensive evaluation index of the transition wheel, Indicates the diameter of the transition wheel, represents the surface friction coefficient of the transition wheel, Indicates the service life of the transition wheel. Indicates the load of the transition wheel, Indicates the reference value of the transition wheel diameter, Indicates the reference value of the friction coefficient of the transition wheel surface, Indicates the reference value of transition wheel service life. Indicates the reference value of the transition pulley load, represents the weight factor of the transition wheel diameter, The weight factor representing the friction coefficient of the transition wheel surface, The weight factor representing the service life of the transition wheel, Represents the weight factor of the transition wheel load.

5. A tension test method based on a metal rope according to claim 1, characterized in that ,The specific method of obtaining the safety performance test value of the metal rope is: Record each tension test information of the metal rope, and obtain the durability performance test value of the metal rope based on the analysis of each tension test information of the metal rope; Based on the real-time monitoring of the tensile test equipment, the deformation information of the metal rope and the instantaneous information of the metal rope fracture are respectively analyzed to obtain the load-deformation performance test value of the metal rope; A comprehensive analysis is performed on the durability performance test value of the metal rope and the load-deformation performance test value of the metal rope to obtain the safety performance test value of the metal rope.

6. A tension test method based on a metal rope according to claim 5, characterized in that ,The specific calculation formula of the safety performance test value of the metal rope is: ； In the formula Indicates the safety performance test value of the metal rope. Indicates the durability test value of the metal rope. Indicates the load-deformation performance test value of the metal rope. Represents the weighting factor of the durability test value, A weighting factor that represents the load-deformation performance test value.

7. A tension test method based on a metal rope according to claim 5, characterized in that ,The specific analysis process of obtaining the durability test value of the metal rope is: The information of each tensile test of the metal rope specifically includes: fatigue life of the metal rope, strain hardening index of the metal rope; By performing weighted analysis on the fatigue life of the metal rope and the strain hardening index of the metal rope, a durability performance test value of the metal rope is obtained, and the durability performance test value of the metal rope is used to numerically represent the specific conditions of the durability reliability of the metal rope.

8. A tension test method based on a metal rope according to claim 5, characterized in that ,The specific analysis process of obtaining the load-deformation performance test value of the metal rope is: The deformation information of the metal rope specifically includes: the slope of the tensile stress-strain curve and the elongation at break: The instantaneous information of the metal rope breaking specifically includes: the instantaneous tensile force at breaking; By performing weighted analysis on the slope of the tensile stress-strain curve, the elongation at break and the instantaneous tensile force at break, the load-deformation performance test value of the metal rope is obtained. The load-deformation performance test value of the metal rope is used to numerically represent the comprehensive condition of the safe load capacity and breaking strength of the metal rope.

9. A tension test method based on a metal rope according to claim 1, characterized in that ,The tension test report of the metal rope specifically includes: the transition wheel of the tension test equipment selected for the metal rope tension test, the durability performance test value of the metal rope, the load-deformation performance test value of the metal rope, the safety performance test value of the metal rope, and the tension test analysis result of the metal rope; The analysis result of the tension test of the metal rope is specifically as follows: the safety performance test value of the metal rope is compared and analyzed with the safety performance threshold of the metal rope stored in the database, and the metal rope whose safety performance test value is greater than or equal to the safety performance threshold of the metal rope is judged to have passed the tension test, and the metal rope whose safety performance test value is less than the safety performance threshold of the metal rope is marked as having failed the tension test.

10. A tension test device based on a metal rope, using a tension test method based on a metal rope as claimed in any one of claims 1 to 9, characterized in that: include: A transition wheel selection module is used to obtain transition wheel selection requirement information based on the basic information of the target test metal rope, select the transition wheel required by the tension test equipment of the target test metal rope using the transition wheel selection requirement information, and then perform real-time monitoring of the metal rope testing process of the tension test equipment after the required transition wheel is deployed; An information acquisition module is used to acquire the deformation information of the metal rope and the instantaneous information of the metal rope breaking during the process of the tension test equipment testing the metal rope in real time; The safety performance test module is used to combine the test parameter information with the metal rope deformation information, the metal rope breakage instantaneous information and the metal rope tension test records for analysis to obtain the safety performance test value of the metal rope and automatically generate a metal rope tension test report.

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