Method and device for testing the cut resistance of a tyre rubber
By generating cut resistance curves using a cut resistance testing device and image recognition technology, the problems of poor reliability and applicability in existing rubber testing methods are solved, achieving efficient and low-cost evaluation of rubber cut resistance performance.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- CHANGCHUN INSTITUTE OF APPLIED CHEMISTRY CHINESE ACADEMY OF SCIENCES
- Filing Date
- 2023-12-25
- Publication Date
- 2026-06-19
AI Technical Summary
Existing rubber cut resistance testing methods cannot take into account actual application scenarios, resulting in poor reliability and applicability of test results, high costs, and impact on overall testing efficiency.
Tire rubber samples are tested using the type of impact head and the set number of revolutions of a cut resistance testing device to generate cut resistance curves. By combining image recognition technology to determine the characteristic lines of the rubber samples, cut resistance parameters are calculated to determine the target rubber formulation.
This improved the reliability and applicability of test results, reduced testing costs, and increased overall testing efficiency.
Smart Images

Figure CN117571533B_ABST
Abstract
Description
Technical Field
[0001] This application belongs to the field of rubber testing technology, and specifically relates to a method and apparatus for testing the cut resistance of tire rubber. Background Technology
[0002] When tires are used in rugged terrain, agricultural or military tracks, or other environments containing gravel, rocks, and uneven surfaces, the tire's rubber surface is exposed to concentrated sliding impacts, generating significant normal and shear stresses that can lead to rubber damage or detachment. Therefore, effectively and quickly testing the cut resistance of tire rubber is a pressing issue that needs to be addressed.
[0003] The existing approach is to use traditional rubber laboratories to test the cut resistance of rubber compounds. However, this approach fails to consider real-world application scenarios, which not only leads to poor reliability and applicability of the test results but also requires excessive investment, thus affecting the overall testing efficiency. Summary of the Invention
[0004] To address the aforementioned technical problems of traditional cut resistance testing failing to consider practical application scenarios, leading to poor reliability and applicability of test results, and requiring excessive costs that affect overall testing efficiency, this application proposes a method and apparatus for testing the cut resistance of tire rubber. The technical solution is as follows:
[0005] In a first aspect, embodiments of this application provide a method for testing the cut resistance of tire rubber, including:
[0006] Samples are prepared according to at least two tire rubber formulations to obtain tire rubber samples corresponding to each tire rubber formulation; wherein each tire rubber formulation contains at least two formulation materials, and there is at least one formulation material of different types between any two tire rubber formulations;
[0007] Each tire rubber sample is tested based on the type of impact head of the cut resistance test device and at least two set number of revolutions to obtain the cut resistance parameters corresponding to each set number of revolutions.
[0008] Based on all the cut resistance parameters and the corresponding number of turns for all tire rubber samples, a cut resistance curve is generated, and the target tire rubber formula is determined based on the cut resistance curve.
[0009] In one alternative of the first aspect, each tire rubber sample is tested based on the impact head type of the cut resistance testing device and at least two set coil numbers to obtain cut resistance parameters corresponding to each set coil number, including:
[0010] When the impact head of the cut resistance test device is of the first type, the first pressure parameter and the first time parameter corresponding to the first type are determined within the preset first parameter range;
[0011] Based on the first pressure parameter, the first time parameter, and at least two set number of revolutions, the cut resistance test device is controlled to test each tire rubber sample to obtain at least two resistance parameters corresponding to each set number of revolutions.
[0012] The corresponding cut resistance parameter is calculated based on the first pressure parameter and at least two resistance parameters corresponding to each set number of revolutions.
[0013] In another alternative to the first aspect, before controlling the cut resistance testing device to test each tire rubber sample based on a first pressure parameter, a first time parameter, and at least two set number of revolutions, the method further includes:
[0014] Each tire rubber sample is fixed in a designated position, and the impact head of the cut resistance test device is controlled to move towards the tire rubber sample in the designated position.
[0015] Acquire sample images containing tire rubber samples at preset time intervals, and identify the inner contour feature lines and outer contour feature lines of the tire rubber samples from each sample image.
[0016] Calculate the first shortest distance from the center point of the tire rubber sample to the inner contour feature line and the second shortest distance to the outer contour feature line, and obtain the ratio between the first shortest distance and the second shortest distance.
[0017] Based on a first pressure parameter, a first time parameter, and at least two preset number of revolutions, the cut resistance testing device is controlled to perform testing on each tire rubber sample, including:
[0018] When the ratio corresponding to any sample image exceeds the preset ratio threshold, the impact head of the cut resistance test device is controlled to stop moving towards the tire rubber sample. Based on the first pressure parameter, the first time parameter, and at least two preset number of revolutions, the cut resistance test device is controlled to perform test processing on each tire rubber sample.
[0019] In another alternative to the first aspect, the corresponding cut resistance parameter is calculated based on the first pressure parameter and at least two resistance parameters corresponding to each set number of revolutions, including:
[0020] Based on the first pressure parameter and each resistance parameter corresponding to each set number of revolutions, a set of friction parameters is obtained, and the maximum and minimum friction parameters are determined from the set of friction parameters.
[0021] Substitute the maximum friction parameter, the minimum friction parameter, and the corresponding number of revolutions into the preset cut resistance calculation formula to obtain the cut resistance parameter.
[0022] In another alternative to the first aspect, the test treatment of each tire rubber sample is performed based on the impact head type of the cut resistance testing device and at least two set coil numbers to obtain cut resistance parameters corresponding to each set coil number, further comprising:
[0023] When the impact head of the cut resistance test device is of the second type, the second pressure parameter and the second time parameter corresponding to the second type are determined within a preset second parameter range; wherein the second time parameter is greater than the first time parameter.
[0024] Based on the second pressure parameter, the second time parameter, and at least two set number of revolutions, the cut resistance test device is controlled to test each tire rubber sample to obtain at least two resistance parameters corresponding to each set number of revolutions.
[0025] The corresponding cut resistance parameter is calculated based on the second pressure parameter and at least two resistance parameters corresponding to each set number of revolutions.
[0026] In another alternative to the first aspect, the target tire rubber formulation is determined based on the cut resistance curve, including:
[0027] The minimum cut resistance parameter corresponding to each set number of revolutions is determined based on the cut resistance curve, and the number of minimum cut resistance parameters contained in each tire rubber sample is counted based on all the minimum cut resistance parameters.
[0028] The tire rubber formulation corresponding to the tire rubber sample containing the largest number of minimum cut resistance parameters is taken as the target tire rubber formulation.
[0029] In another alternative of the first aspect, the impact head surface of the cut resistance test device is uniformly distributed with metal particles, the shape of which is any one of spheres, cones, triangular pyramids or cubes, and the material of which is any one of iron, copper, nickel or stainless steel.
[0030] Secondly, embodiments of this application provide a device for testing the cut resistance of tire rubber, comprising:
[0031] The sample acquisition module is used to prepare samples according to at least two tire rubber formulations to obtain tire rubber samples corresponding to each tire rubber formulation; wherein each tire rubber formulation contains at least two formulation materials, and there is at least one formulation material of different types between any two tire rubber formulations;
[0032] The parameter determination module is used to test each tire rubber sample based on the type of impact head of the cut resistance test device and at least two set number of revolutions, and to obtain the cut resistance parameters corresponding to each set number of revolutions.
[0033] The curve generation module is used to generate a cut resistance curve based on all cut resistance parameters and the corresponding set number of revolutions for all tire rubber samples, and to determine the target tire rubber formula based on the cut resistance curve.
[0034] Thirdly, embodiments of this application also provide a device for testing the cut resistance of tire rubber, including a processor and a memory;
[0035] The processor is connected to the memory;
[0036] Memory, used to store executable program code;
[0037] The processor runs a program corresponding to the executable program code by reading the executable program code stored in the memory, so as to implement the tire rubber cut resistance test method provided by the first aspect or any implementation of the first aspect of the present application.
[0038] Fourthly, embodiments of this application provide a computer storage medium storing a computer program, which includes program instructions. When executed by a processor, the program instructions can implement the tire rubber cut resistance test method provided in the first aspect or any implementation of the first aspect of this application.
[0039] In this embodiment, when testing the cut resistance of different tire rubbers, samples can be prepared according to at least two tire rubber formulations to obtain tire rubber samples corresponding to each formulation. Each tire rubber sample is tested based on the impact head type of the cut resistance testing device and at least two preset coil numbers to obtain cut resistance parameters corresponding to each preset coil number. A cut resistance curve is generated based on all cut resistance parameters and corresponding preset coil numbers for all tire rubber samples, and the target tire rubber formulation is determined based on the cut resistance curve. By combining different preset coil numbers configured in the cut resistance testing device, tire rubber samples made from different tire rubber formulations are tested multiple times to effectively ensure the applicability and accuracy of the test results. Furthermore, by utilizing the impact head type set in the cut resistance testing device to simulate different application scenarios, the testing operation is not only simple and low-cost, but also ensures the reliability of the test results, thereby improving overall testing efficiency. Attached Figure Description
[0040] To more clearly illustrate the technical solutions in the embodiments of this application, the accompanying drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.
[0041] Figure 1 A flowchart illustrating the overall process of a method for testing the cut resistance of tire rubber, as provided in this application embodiment;
[0042] Figure 2 This is a schematic diagram of the structure of a cut resistance testing device provided in an embodiment of this application;
[0043] Figure 3 This is a schematic diagram illustrating the effect of a cutting resistance curve provided in an embodiment of this application;
[0044] Figure 4 This is a schematic diagram illustrating the effect of another cutting resistance curve provided in the embodiments of this application;
[0045] Figure 5 This is a schematic diagram illustrating the effect of another cutting resistance curve provided in the embodiments of this application;
[0046] Figure 6 A schematic diagram of a tire rubber cut resistance testing device provided in an embodiment of this application;
[0047] Figure 7 This is a schematic diagram of the structure of another tire rubber cut resistance testing device provided in the embodiments of this application. Detailed Implementation
[0048] The technical solutions in the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings.
[0049] In the following description, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance. The following description provides multiple embodiments of this application, which can be substituted or combined with each other. Therefore, this application can also be considered to include all possible combinations of the same and / or different embodiments described. Thus, if one embodiment includes features A, B, and C, and another embodiment includes features B and D, then this application should also be considered to include embodiments containing one or more other possible combinations of A, B, C, and D, even if such embodiments are not explicitly described in the following text.
[0050] The following description provides examples and does not limit the scope, applicability, or examples set forth in the claims. Changes may be made to the function and arrangement of the described elements without departing from the scope of this application. Various processes or components may be appropriately omitted, substituted, or added to the examples. For example, the described methods may be performed in a different order than described, and various steps may be added, omitted, or combined. Furthermore, features described with respect to some examples may be combined into other examples.
[0051] Please see Figure 1 , Figure 1 This paper presents an overall flowchart of a method for testing the cut resistance of tire rubber according to an embodiment of this application.
[0052] like Figure 1 As shown, the method for testing the cut resistance of tire rubber may include at least the following steps:
[0053] Step 102: Prepare samples according to at least two tire rubber formulations to obtain tire rubber samples corresponding to each tire rubber formulation.
[0054] In this embodiment, the method for testing the cut resistance of tire rubber can be, but is not limited to, applied to a testing platform. This testing platform can establish communication connections between a sample preparation device and a cut resistance testing device to control the sample preparation device to perform sample preparation processing according to different tire rubber formulations, and to control the cut resistance testing device to test multiple prepared tire rubber samples to obtain the cut resistance parameters of each tire rubber sample at different set number of revolutions. Furthermore, the cut resistance parameters of all tire rubber samples at different set number of revolutions can be combined to generate a cut resistance curve. The aforementioned sample preparation device can be, but is not limited to, processing equipment such as internal mixers, open mills, cutting machines, and vulcanizing machines, to control different types of processing equipment to sequentially process one or more formulation materials in the tire rubber formulation. In this embodiment, these different types of processing equipment can process different tire rubber formulations according to preset standard processing methods, which will not be elaborated further here.
[0055] It is understood that the aforementioned cut resistance testing device can be, but is not limited to, instrumented cut resistance analyzers or instrumented cut resistance testers, etc., used in the testing process of tire rubber samples. During this process, an impact head is controlled to repeatedly impact the tire rubber sample using a set pressure parameter. A force sensor on the impact head is used to obtain the resistance parameter corresponding to the set pressure parameter. This resistance parameter, along with the corresponding pressure parameter, is then used to further calculate the cut resistance parameter. It should be noted that the shape of the impact head in the cut resistance testing device mentioned in this application embodiment can be, but is not limited to, a crescent shape or a pointed shape, and its surface can be, but is not limited to, uniformly distributed with small metal particles of various shapes. This increases the friction between the impact head and the tire rubber sample by increasing the surface friction of the impact head. Compared to traditional impact head shapes, this can simulate different tire application scenarios, making the testing operation simple and cost-effective, ensuring the reliability of the test results, and thus improving overall testing efficiency.
[0056] See also: Figure 2 The schematic diagram shown is of a cut resistance testing device provided in an embodiment of this application. Figure 2 As shown, this cut resistance testing device can be understood as an instrumented cut resistance analyzer. In the figure, A corresponds to the pneumatic device of the instrumented cut resistance analyzer, B corresponds to the two-axis load unit of the instrumented cut resistance analyzer (connected to the pneumatic device), C corresponds to the impact head of the instrumented cut resistance analyzer (which can be mounted on the two-axis load unit to control the reciprocating motion of the two-axis load unit via the pneumatic device, thereby achieving the reciprocating impact of the impact head on the tire rubber sample), and D corresponds to the tire rubber sample. Here, F... N This can be understood as the pressure parameter set by the instrumented cutting resistance analyzer, F S This can be understood as the resistance parameters between the impact head and the tire rubber sample collected by a force sensor mounted on the impact head. Because the pressure parameters exhibit fluctuations, the force sensor can collect multiple resistance parameters under the same set pressure parameters. It can also be understood that the tire rubber sample can be placed on the turntable of an instrumented cut resistance analyzer, and the analyzer applies a set rotational angular velocity to the tire rubber sample to simulate the tire's condition during normal driving.
[0057] Specifically, when testing the cut resistance of different tire rubbers, the testing platform can, but is not limited to, configure the amounts of all formulation materials corresponding to each tire rubber formulation in sequence according to at least two tire rubber formulations provided by the tester, and control the aforementioned sample preparation device to process all formulation materials to obtain the corresponding tire rubber samples. Here, each tire rubber formulation can correspond to at least two formulation materials, and in order to better detect the influence of different formulation materials on the cut resistance of rubber, the aforementioned at least two tire rubber formulations can be understood as at least two tire rubber formulations from the same batch, and any two tire rubber formulations may have one or more different formulation materials, while all other formulation materials can remain consistent.
[0058] Here, we take as an example at least two tire rubber formulations where the specific grades and amounts of the seven formulation materials—smoked sheet rubber, ZnO, SA, 4020, RD, NS, and S powder—are kept consistent. The carbon black grades included in these at least two tire rubber formulations are different. For example, the carbon black grade in the first tire rubber formulation is N220, the carbon black grade in the second tire rubber formulation is N330, and the carbon black grade in the third tire rubber formulation is N550, and the amounts of the different carbon black grades can be kept consistent.
[0059] Step 104: Test each tire rubber sample based on the impact head type of the cut resistance test device and at least two set number of revolutions to obtain the cut resistance parameters corresponding to each set number of revolutions.
[0060] Specifically, after preparing tire rubber samples corresponding to each tire rubber formulation, the testing platform can, but is not limited to, fix each tire rubber sample on the turntable of the cut resistance testing device. The turntable provides a set rotational angular velocity to each tire rubber sample. The impact head type of the cut resistance testing device can be changed to a target type according to testing requirements. Then, by combining at least two set number of revolutions, a set rotational angular velocity, and other set parameters corresponding to the target type, the platform controls the cut resistance testing device to test each tire rubber sample. The cut resistance parameters corresponding to each set number of revolutions are calculated using multiple resistance parameters collected by a force sensor. It is understood that the other set parameter types corresponding to the target type can, but are not limited to, pressure parameters and time parameters. The pressure parameter can specifically be divided into normal force, i.e., the normal force applied by the impact head to each tire rubber sample; the time parameter can specifically be divided into cycle time and contact time. The cycle time can be understood as the time corresponding to a single reciprocating motion of the impact head, and the contact time can be understood as the time for a single impact of the impact head on the tire rubber sample.
[0061] Here, the target type can be, but is not limited to, crescent or pointed shapes. The central angle of the crescent shape can be controlled between 30° and 120°. Different shaped metal particles can be uniformly distributed on the surface of the crescent-shaped impact head. The material of these metal particles can be, but is not limited to, any one of iron, copper, nickel, or stainless steel, and the shape of the metal particles can be, but is not limited to, any one of spheres, cones, triangular pyramids, or cubes. It is worth noting that in this embodiment, impact heads with metal particles of different materials exhibit different cut resistance; for example, the harder the material, the worse the cut resistance. Similarly, impact heads with metal particles of different shapes exhibit different cut resistance; for example, the more convex the shape, the worse the cut resistance. However, this is not a limitation.
[0062] The central angle of the pointed shape can be controlled between 5° and 10°, and metal particles of different shapes can be evenly distributed on the surface of the pointed impact head, which will not be elaborated further here.
[0063] As an optional embodiment of this application, each tire rubber sample is tested based on the impact head type of the cut resistance testing device and at least two set number of revolutions to obtain cut resistance parameters corresponding to each set number of revolutions, including:
[0064] When the impact head of the cut resistance test device is of the first type, the first pressure parameter and the first time parameter corresponding to the first type are determined within the preset first parameter range;
[0065] Based on the first pressure parameter, the first time parameter, and at least two set number of revolutions, the cut resistance test device is controlled to test each tire rubber sample to obtain at least two resistance parameters corresponding to each set number of revolutions.
[0066] The corresponding cut resistance parameter is calculated based on the first pressure parameter and at least two resistance parameters corresponding to each set number of revolutions.
[0067] Specifically, in the process of obtaining the cut resistance parameters corresponding to each set number of circles, when the impact head of the cut resistance test device is identified as the first type, the first pressure parameter and the first time parameter corresponding to the first type can be determined within the corresponding preset first parameter range. The first type can be the pointed shape with the center angle controlled between 5° and 10° as mentioned above. The corresponding preset first parameter range can specifically include the normal force range (180-220 N), the cycle time range (150-240 ms), and the communication time range (40-90 ms) corresponding to the pointed impact head. That is, the first pressure parameter can be any normal force within the normal force range corresponding to the pointed impact head, and the first time parameter can include any cycle time within the cycle time range corresponding to the pointed impact head, and any communication time within the communication time range corresponding to the pointed impact head. Of course, in this embodiment, the corresponding motor speed and maximum wear depth can also be determined in the motor speed range (150-240 rpm) and the maximum wear depth range (5-7 mm) corresponding to the pointed impact head, so as to control the cut resistance test device to test each tire rubber sample in combination with the first pressure parameter and the first time parameter.
[0068] Next, the cut resistance testing device can be controlled to test each tire rubber sample according to any set number of revolutions, a first pressure parameter, and a first time parameter, so as to collect at least two resistance parameters corresponding to the set number of revolutions and the first pressure parameter through a force sensor. Here, the set number of revolutions can be, but is not limited to, any number of revolutions within the range corresponding to the pointed impact head. The range of revolutions can be 0-5000 revolutions, and the at least two set number of revolutions mentioned in the embodiments of this application can specifically be 500, 1000, 1500, 2000, 2500, 3000, 4000, and 5000.
[0069] Next, after obtaining at least two resistance parameters corresponding to each set number of revolutions, the maximum resistance parameter and the minimum resistance parameter can be determined from the at least two resistance parameters, and the cutting resistance parameter can be calculated based on the maximum resistance parameter, the minimum resistance parameter, the aforementioned first pressure parameter, and the corresponding set number of revolutions.
[0070] As another optional embodiment of this application, the corresponding cut resistance parameter is calculated based on the first pressure parameter and at least two resistance parameters corresponding to each set number of revolutions, including:
[0071] Based on the first pressure parameter and each resistance parameter corresponding to each set number of revolutions, a set of friction parameters is obtained, and the maximum and minimum friction parameters are determined from the set of friction parameters.
[0072] Substitute the maximum friction parameter, the minimum friction parameter, and the corresponding number of revolutions into the preset cut resistance calculation formula to obtain the cut resistance parameter.
[0073] Specifically, in the process of obtaining the cutting resistance parameters corresponding to each set number of revolutions, the resultant force between the first pressure parameter and each resistance parameter can be calculated using the Pythagorean theorem (that is, the first pressure parameter and each resistance parameter are respectively taken as the legs of a right triangle and the hypotenuse is calculated), so as to use the resultant force as the friction parameter and obtain the friction parameter set.
[0074] Next, the maximum and minimum friction parameters can be determined from this set of friction parameters. These parameters, along with the corresponding number of rotations, are then substituted into a preset cut resistance calculation formula to obtain the cut resistance parameters. The preset cut resistance calculation formula is as follows:
[0075]
[0076] In the above formula, P can be represented as the cutting resistance parameter. This can be represented by the maximum friction parameter. This can be represented by the minimum friction parameter, and n can be represented by the corresponding set number of revolutions.
[0077] As another optional embodiment of this application, before controlling the cut resistance testing device to test each tire rubber sample based on the first pressure parameter, the first time parameter, and at least two set number of revolutions, the method further includes:
[0078] Each tire rubber sample is fixed in a designated position, and the impact head of the cut resistance test device is controlled to move towards the tire rubber sample in the designated position.
[0079] Acquire sample images containing tire rubber samples at preset time intervals, and identify the inner contour feature lines and outer contour feature lines of the tire rubber samples from each sample image.
[0080] Calculate the first shortest distance from the center point of the tire rubber sample to the inner contour feature line and the second shortest distance to the outer contour feature line, and obtain the ratio between the first shortest distance and the second shortest distance.
[0081] Based on a first pressure parameter, a first time parameter, and at least two preset number of revolutions, the cut resistance testing device is controlled to perform testing on each tire rubber sample, including:
[0082] When the ratio corresponding to any sample image exceeds the preset ratio threshold, the impact head of the cut resistance test device is controlled to stop moving towards the tire rubber sample. Based on the first pressure parameter, the first time parameter, and at least two preset number of revolutions, the cut resistance test device is controlled to perform test processing on each tire rubber sample.
[0083] To ensure the accuracy of the test results, image recognition processing can also be used, but is not limited to, to determine whether the impact head has effectively impacted each tire rubber sample.
[0084] Specifically, before the cut resistance testing device tests each tire rubber sample, each tire rubber sample can be fixed in a designated position. This designated position can be understood as the turntable mentioned above that provides rotational angular velocity to each tire rubber sample. The pneumatic device of the cut resistance testing device is then controlled to gradually apply normal force to the two-axis load unit, so that the impact head moves towards the tire rubber sample in the designated position until the impact head contacts the tire rubber sample.
[0085] Next, during the process of controlling the impact head to move towards the tire rubber sample at the designated position, sample images containing the tire rubber sample can be acquired at preset time intervals using a camera device, but not limited to this step. These sample images are used to determine the contact between the impact head and the tire rubber sample in real time, and the inner and outer contour feature lines corresponding to the tire rubber sample can be identified from each sample image. Here, the inner contour feature line can be understood as the contour feature line corresponding to the inner diameter wheel of the tire rubber sample, and the outer contour feature line can be understood as the contour feature line corresponding to the outer diameter wheel of the tire rubber sample. The area corresponding to the inner contour feature line is smaller than the area corresponding to the outer contour feature line.
[0086] Next, in each sample image, the first shortest distance from the center point of the tire rubber sample to the inner contour feature line and the second shortest distance to the outer contour feature line can be calculated. The center point of the tire rubber sample can be determined based on, but is not limited to, the center point of the inner contour feature line. For example, the center point of the inner contour feature line can be used as the center point of the tire rubber sample, and the ratio between the first and second shortest distances can be calculated. It is understood that when the impact head is not in contact with the tire rubber sample, the value of the second shortest distance remains unchanged, that is, the ratio between the first and second shortest distances is a constant value; when the impact head contacts the tire rubber sample and constitutes a squeezing action on the tire rubber sample, the second shortest distance gradually decreases, that is, the ratio between the first and second shortest distances gradually increases.
[0087] Next, when the ratio corresponding to any sample image exceeds a preset ratio threshold, it indicates that the pressure applied by the impact head to the tire rubber sample is sufficient for testing (and ensures high accuracy of test results). This allows the pneumatic device of the cut resistance test apparatus to stop applying normal force to the two-axis load unit, thus stopping the impact head from moving towards the tire rubber sample at the designated position. At this point, the pressure currently provided by the pneumatic device of the cut resistance test apparatus can be compared with the aforementioned first pressure parameter. For example, but not limited to, when the difference between the current pressure provided by the pneumatic device of the cut resistance test apparatus and the aforementioned first pressure parameter is large, the current pressure provided by the pneumatic device of the cut resistance test apparatus can be used as the first pressure parameter; when the difference between the current pressure provided by the pneumatic device of the cut resistance test apparatus and the aforementioned first pressure parameter is small, the first pressure parameter can be kept unchanged.
[0088] As another optional embodiment of this application, the method of testing each tire rubber sample based on the impact head type of the cut resistance testing device and at least two set coil numbers to obtain cut resistance parameters corresponding to each set coil number further includes:
[0089] When the impact head of the cut resistance test device is of the second type, the second pressure parameter and the second time parameter corresponding to the second type are determined within a preset second parameter range; wherein the second time parameter is greater than the first time parameter.
[0090] Based on the second pressure parameter, the second time parameter, and at least two set number of revolutions, the cut resistance test device is controlled to test each tire rubber sample to obtain at least two resistance parameters corresponding to each set number of revolutions.
[0091] The corresponding cut resistance parameter is calculated based on the second pressure parameter and at least two resistance parameters corresponding to each set number of revolutions.
[0092] Specifically, in the process of obtaining the cut resistance parameters corresponding to each set number of revolutions, when the impact head of the cut resistance test device is identified as the second type, the second pressure parameter and the second time parameter corresponding to the second type can be determined within the corresponding preset second parameter range. The second type can be a crescent shape with the center angle controlled between 30° and 120° as mentioned above. The corresponding preset second parameter range can specifically include the normal force range (160-200 N), the cycle time range (160-200 ms), and the communication time range (50-70 ms) corresponding to the crescent-shaped impact head. That is, the second pressure parameter can be any normal force within the normal force range corresponding to the crescent-shaped impact head, and the second time parameter can include any cycle time within the cycle time range corresponding to the crescent-shaped impact head, and any communication time within the communication time range corresponding to the crescent-shaped impact head. Of course, in this embodiment, the corresponding motor speed and maximum wear depth can also be determined in the motor speed range (160-200 rpm) and the maximum wear depth range (4-6 mm) corresponding to the crescent-shaped impact head, so as to control the cut resistance test device to test each tire rubber sample in combination with the second pressure parameter and the second time parameter.
[0093] It should be noted that the pointed impact head causes slightly deeper damage to the tire rubber sample compared to the crescent-shaped impact head. In addition, due to its own wear and tear, it is easy to penetrate into the tire rubber sample. If it is not removed in time, it is easy for the impact head to bend. Therefore, in the embodiments of this application, the time parameter corresponding to the pointed impact head may be, but is not limited to, being less than the time parameter corresponding to the crescent-shaped impact head, and is not limited to this.
[0094] Next, the cut resistance testing device can be controlled to test each tire rubber sample according to any set number of revolutions, a second pressure parameter, and a second time parameter, so as to collect at least two resistance parameters corresponding to the set number of revolutions and the second pressure parameter through a force sensor. Here, the set number of revolutions can be, but is not limited to, any number of revolutions within the range corresponding to the crescent-shaped impact head. The range of revolutions can be 0-5000 revolutions, and the at least two set number of revolutions mentioned in the embodiments of this application can specifically be 500, 1000, 1500, 2000, 2500, 3000, 4000, and 5000.
[0095] Next, after obtaining at least two resistance parameters corresponding to each set number of revolutions, the maximum resistance parameter and the minimum resistance parameter can be determined from the at least two resistance parameters, and the cutting resistance parameter can be calculated based on the maximum resistance parameter, the minimum resistance parameter, the aforementioned second pressure parameter, and the corresponding set number of revolutions.
[0096] Step 106: Generate a cut resistance curve based on all cut resistance parameters and the corresponding set number of revolutions for all tire rubber samples, and determine the target tire rubber formula based on the cut resistance curve.
[0097] Specifically, after obtaining the cut resistance parameters corresponding to each tire rubber sample and each set number of coils, it is possible, but not limited to, using all set numbers of coils as the horizontal axis and the cut resistance parameters corresponding to each set number of coils as the vertical axis, to display all the cut resistance parameters corresponding to all tire rubber samples as curves in a coordinate system established by the horizontal and vertical axes. All cut resistance parameters corresponding to the same tire rubber sample can be connected by symbols of the same color. The curve with the best cut resistance performance can be determined in the coordinate system containing all curves, and the tire rubber formula corresponding to the curve with the best cut resistance performance can be used as the target tire rubber formula.
[0098] As another optional embodiment of this application, determining the target tire rubber formulation based on the cut resistance curve includes:
[0099] The minimum cut resistance parameter corresponding to each set number of revolutions is determined based on the cut resistance curve, and the number of minimum cut resistance parameters contained in each tire rubber sample is counted based on all the minimum cut resistance parameters.
[0100] The tire rubber formulation corresponding to the tire rubber sample containing the largest number of minimum cut resistance parameters is taken as the target tire rubber formulation.
[0101] Specifically, in determining the target tire rubber compound, it is possible, but not limited to, determining all cut resistance parameters corresponding to each set number of revolutions in a coordinate system containing all curves. The minimum cut resistance parameter among all cut resistance parameters can be used as an evaluation index of cut resistance performance. The number of minimum cut resistance parameters contained in each tire rubber sample is counted. A higher number of minimum cut resistance parameters indicates stronger cut resistance performance, while a lower number indicates weaker cut resistance performance. It is understood that the curve corresponding to a tire rubber sample with stronger cut resistance is generally closer to the horizontal axis than all other curves. Therefore, the curve with the closest horizontal axis distance can be determined from a coordinate system containing all curves, but this is not a limitation.
[0102] Next, the tire rubber formulation corresponding to the tire rubber sample with the largest number of minimum cut resistance parameters can be used as the target tire rubber formulation, where the target tire rubber formulation has strong cut resistance.
[0103] As another optional embodiment of this application, the impact head of the cutting resistance testing device can be, but is not limited to, a pointed shape. Specifically, the corresponding parameter range can include the normal force range (180-220N), cycle time range (150-240 ms), communication time range (40-90 ms), motor speed range (150-240 rpm), and maximum wear depth range (5-7 mm) corresponding to the pointed impact head. Furthermore, it can be divided into eight types based on at least two set number of revolutions: 500, 1000, 1500, 2000, 2500, 3000, 4000, and 5000. Please refer to [link / reference]. Figure 3 The diagram shown is a schematic representation of the effect of a cutting resistance curve provided in an embodiment of this application.
[0104] like Figure 3 As shown in the diagram, this schematic diagram contains six tire rubber compounds, which can be represented as LM-1, LM-2, LM-5, LM-6, LM-7, and LM-12. Each tire rubber compound corresponds to a different shape on the curve. It can be seen that the curve corresponding to the tire rubber compound LM-12 is closer to the horizontal axis of the coordinate system than all the other compounds, indicating that LM-12 has the best cut resistance among the six tire rubber compounds. The tire rubber compounds with good cut resistance in that order are LM-1, LM-2, LM-7, LM-5, and LM-6, respectively.
[0105] Of course, you can also refer to the following table of tire road test results corresponding to the six tire rubber compounds: LM-1, LM-2, LM-5, LM-6, LM-7, and LM-12:
[0106]
[0107] It can be seen that tire rubber compound number 12 has the longest driving range, which means it has the best cut resistance, followed by tire rubber compounds numbered 1, 2, 7, 5 and 6.
[0108] As another optional embodiment of this application, the impact head of the cutting resistance testing device can be, but is not limited to, a 45° crescent shape, as an example. The corresponding parameter range can specifically include the normal force range (160-200 N), cycle time range (160-200 ms), communication time range (50-70 ms), motor speed range (160-200 rpm), and maximum wear depth range (4-6 mm) corresponding to the crescent-shaped impact head. Furthermore, it can be divided into eight types with at least two set number of revolutions: 500, 1000, 1500, 2000, 2500, 3000, 4000, and 5000. Please refer to [link / reference]. Figure 4The diagram shown illustrates the effect of another cutting resistance curve provided by an embodiment of this application.
[0109] like Figure 4 As shown in the diagram, this schematic diagram includes three tire rubber compounds, which can be represented as LM-3, LM-4, and LM-15, respectively. Each tire rubber compound corresponds to a different coordinate shape on the curve. It can be seen that the tire rubber compound corresponding to LM-4 has a curve that is closer to the horizontal axis of the coordinate system than all the other compounds. This indicates that LM-4 has the best cut resistance among the three tire rubber compounds, and the tire rubber compounds with the best cut resistance in that order are LM-3 and LM-15, respectively.
[0110] Of course, you can also refer to the following table of tire road test results corresponding to the three tire rubber compounds: LM-3, LM-4, and LM-15:
[0111]
[0112] It can be seen that tire rubber compound number 4 has the longest driving range, which means it has the best cut resistance, followed by tire rubber compounds numbered 3 and 15.
[0113] As another optional embodiment of this application, eleven different tire rubber samples can be prepared, but are not limited to, using a 60° crescent-shaped impact head of the cut resistance testing device as an example, referring to the tire rubber formulation table shown below. In this case, at least one formulation material differs between any two tire rubber formulations, while all other formulation materials and their quantities remain consistent.
[0114]
[0115] Next, you can refer to, as follows Figure 5 The diagram shown illustrates the effect of another cutting resistance curve provided by an embodiment of this application, as follows: Figure 5 As shown in the diagram, this schematic diagram contains eleven tire rubber compounds, each with a different coordinate shape on the curve. It can be seen that the curve corresponding to tire rubber compound #6 is closer to the horizontal axis of the coordinate system than all the other compounds, indicating that #6 has the best cut resistance among the three tire rubber compounds.
[0116] Please see Figure 6 , Figure 6 A schematic diagram of the structure of a tire rubber cut resistance testing device provided in an embodiment of this application is shown.
[0117] like Figure 6As shown, the tire rubber cut resistance testing device may include at least a sample acquisition module 601, a parameter determination module 602, and a curve generation module 603, wherein:
[0118] The sample acquisition module 601 is used to perform sample preparation according to at least two tire rubber formulations to obtain tire rubber samples corresponding to each tire rubber formulation; wherein each tire rubber formulation contains at least two formulation materials, and there is at least one formulation material of different types between any two tire rubber formulations;
[0119] The parameter determination module 602 is used to test each tire rubber sample based on the type of impact head of the cut resistance test device and at least two set number of revolutions, and to obtain the cut resistance parameters corresponding to each set number of revolutions.
[0120] The curve generation module 603 is used to generate a cut resistance curve based on all cut resistance parameters and the corresponding set number of turns for all tire rubber samples, and to determine the target tire rubber formula based on the cut resistance curve.
[0121] In some possible embodiments, each tire rubber sample is tested based on the impact head type of the cut resistance testing device and at least two set coil numbers to obtain cut resistance parameters corresponding to each set coil number, including:
[0122] When the impact head of the cut resistance test device is of the first type, the first pressure parameter and the first time parameter corresponding to the first type are determined within the preset first parameter range;
[0123] Based on the first pressure parameter, the first time parameter, and at least two set number of revolutions, the cut resistance test device is controlled to test each tire rubber sample to obtain at least two resistance parameters corresponding to each set number of revolutions.
[0124] The corresponding cut resistance parameter is calculated based on the first pressure parameter and at least two resistance parameters corresponding to each set number of revolutions.
[0125] In some possible embodiments, before controlling the cut resistance testing device to test each tire rubber sample based on a first pressure parameter, a first time parameter, and at least two set number of revolutions, the method further includes:
[0126] Each tire rubber sample is fixed in a designated position, and the impact head of the cut resistance test device is controlled to move towards the tire rubber sample in the designated position.
[0127] Acquire sample images containing tire rubber samples at preset time intervals, and identify the inner contour feature lines and outer contour feature lines of the tire rubber samples from each sample image.
[0128] Calculate the first shortest distance from the center point of the tire rubber sample to the inner contour feature line and the second shortest distance to the outer contour feature line, and obtain the ratio between the first shortest distance and the second shortest distance.
[0129] Based on a first pressure parameter, a first time parameter, and at least two preset number of revolutions, the cut resistance testing device is controlled to perform testing on each tire rubber sample, including:
[0130] When the ratio corresponding to any sample image exceeds the preset ratio threshold, the impact head of the cut resistance test device is controlled to stop moving towards the tire rubber sample. Based on the first pressure parameter, the first time parameter, and at least two preset number of revolutions, the cut resistance test device is controlled to perform test processing on each tire rubber sample.
[0131] In some possible embodiments, the corresponding cut resistance parameter is calculated based on the first pressure parameter and at least two resistance parameters corresponding to each set number of revolutions, including:
[0132] Based on the first pressure parameter and each resistance parameter corresponding to each set number of revolutions, a set of friction parameters is obtained, and the maximum and minimum friction parameters are determined from the set of friction parameters.
[0133] Substitute the maximum friction parameter, the minimum friction parameter, and the corresponding number of revolutions into the preset cut resistance calculation formula to obtain the cut resistance parameter.
[0134] In some possible embodiments, each tire rubber sample is tested based on the impact head type of the cut resistance testing device and at least two set coil numbers to obtain cut resistance parameters corresponding to each set coil number, and the test further includes:
[0135] When the impact head of the cut resistance test device is of the second type, the second pressure parameter and the second time parameter corresponding to the second type are determined within a preset second parameter range; wherein the second time parameter is greater than the first time parameter.
[0136] Based on the second pressure parameter, the second time parameter, and at least two set number of revolutions, the cut resistance test device is controlled to test each tire rubber sample to obtain at least two resistance parameters corresponding to each set number of revolutions.
[0137] The corresponding cut resistance parameter is calculated based on the second pressure parameter and at least two resistance parameters corresponding to each set number of revolutions.
[0138] In some possible embodiments, the target tire rubber formulation is determined based on the cut resistance curve, including:
[0139] The minimum cut resistance parameter corresponding to each set number of revolutions is determined based on the cut resistance curve, and the number of minimum cut resistance parameters contained in each tire rubber sample is counted based on all the minimum cut resistance parameters.
[0140] The tire rubber formulation corresponding to the tire rubber sample containing the largest number of minimum cut resistance parameters is taken as the target tire rubber formulation.
[0141] In some possible embodiments, the impact head surface of the cut resistance test device is uniformly distributed with metal particles. The shape of the metal particles is any one of spheres, cones, triangular pyramids, or cubes, and the material of the metal particles is any one of iron, copper, nickel, or stainless steel.
[0142] Those skilled in the art will clearly understand that the technical solutions of the embodiments of this application can be implemented by means of software and / or hardware. In this specification, "unit" and "module" refer to software and / or hardware that can independently complete or cooperate with other components to complete a specific function, wherein the hardware may be, for example, a field-programmable gate array (FPGA), an integrated circuit (IC), etc.
[0143] Please see Figure 7 , Figure 7 This illustration shows a structural schematic diagram of another tire rubber cut resistance testing device provided in an embodiment of this application.
[0144] like Figure 7 As shown, the tire rubber cut resistance testing device 700 may include at least one processor 701, at least one network interface 704, user interface 703, memory 705, and at least one communication bus 702.
[0145] The communication bus 702 can be used to realize the connection and communication of the above components.
[0146] The user interface 703 may include buttons, and the optional user interface may also include a standard wired interface or a wireless interface.
[0147] The network interface 704 may include, but is not limited to, Bluetooth modules, NFC modules, Wi-Fi modules, etc.
[0148] The processor 701 may include one or more processing cores. The processor 701 connects to various parts within the tire rubber cut resistance testing device 700 using various interfaces and lines. It executes various functions and processes data within the tire rubber cut resistance testing device 700 by running or executing instructions, programs, code sets, or instruction sets stored in the memory 705, and by calling data stored in the memory 705. Optionally, the processor 701 may be implemented using at least one hardware form of DSP, FPGA, or PLA. The processor 701 may integrate one or more of the following: CPU, GPU, and modem. The CPU primarily handles the operating system, user interface, and applications; the GPU is responsible for rendering and drawing the content required for display; and the modem handles wireless communication. It is understood that the modem may also not be integrated into the processor 701 and may be implemented as a separate chip.
[0149] The memory 705 may include RAM or ROM. Optionally, the memory 705 may include a non-transitory computer-readable medium. The memory 705 may be used to store instructions, programs, code, code sets, or instruction sets. The memory 705 may include a program storage area and a data storage area, wherein the program storage area may store instructions for implementing an operating system, instructions for at least one function (such as touch function, sound playback function, image playback function, etc.), instructions for implementing the above-described method embodiments, etc.; the data storage area may store data involved in the above-described method embodiments, etc. Optionally, the memory 705 may also be at least one storage device located remotely from the aforementioned processor 701. Figure 7 As shown, the memory 705, which serves as a computer storage medium, may include an operating system, a network communication module, a user interface module, and an application program for testing the cut resistance of tire rubber.
[0150] Specifically, the processor 701 can be used to call the tire rubber cut resistance test application stored in the memory 705, and specifically perform the following operations:
[0151] Samples are prepared according to at least two tire rubber formulations to obtain tire rubber samples corresponding to each tire rubber formulation; wherein each tire rubber formulation contains at least two formulation materials, and there is at least one formulation material of different types between any two tire rubber formulations;
[0152] Each tire rubber sample is tested based on the type of impact head of the cut resistance test device and at least two set number of revolutions to obtain the cut resistance parameters corresponding to each set number of revolutions.
[0153] Based on all the cut resistance parameters and the corresponding number of turns for all tire rubber samples, a cut resistance curve is generated, and the target tire rubber formula is determined based on the cut resistance curve.
[0154] In some possible embodiments, each tire rubber sample is tested based on the impact head type of the cut resistance testing device and at least two set coil numbers to obtain cut resistance parameters corresponding to each set coil number, including:
[0155] When the impact head of the cut resistance test device is of the first type, the first pressure parameter and the first time parameter corresponding to the first type are determined within the preset first parameter range;
[0156] Based on the first pressure parameter, the first time parameter, and at least two set number of revolutions, the cut resistance test device is controlled to test each tire rubber sample to obtain at least two resistance parameters corresponding to each set number of revolutions.
[0157] The corresponding cut resistance parameter is calculated based on the first pressure parameter and at least two resistance parameters corresponding to each set number of revolutions.
[0158] In some possible embodiments, before controlling the cut resistance testing device to test each tire rubber sample based on a first pressure parameter, a first time parameter, and at least two set number of revolutions, the method further includes:
[0159] Each tire rubber sample is fixed in a designated position, and the impact head of the cut resistance test device is controlled to move towards the tire rubber sample in the designated position.
[0160] Acquire sample images containing tire rubber samples at preset time intervals, and identify the inner contour feature lines and outer contour feature lines of the tire rubber samples from each sample image.
[0161] Calculate the first shortest distance from the center point of the tire rubber sample to the inner contour feature line and the second shortest distance to the outer contour feature line, and obtain the ratio between the first shortest distance and the second shortest distance.
[0162] Based on a first pressure parameter, a first time parameter, and at least two preset number of revolutions, the cut resistance testing device is controlled to perform testing on each tire rubber sample, including:
[0163] When the ratio corresponding to any sample image exceeds the preset ratio threshold, the impact head of the cut resistance test device is controlled to stop moving towards the tire rubber sample. Based on the first pressure parameter, the first time parameter, and at least two preset number of revolutions, the cut resistance test device is controlled to perform test processing on each tire rubber sample.
[0164] In some possible embodiments, the corresponding cut resistance parameter is calculated based on the first pressure parameter and at least two resistance parameters corresponding to each set number of revolutions, including:
[0165] Based on the first pressure parameter and each resistance parameter corresponding to each set number of revolutions, a set of friction parameters is obtained, and the maximum and minimum friction parameters are determined from the set of friction parameters.
[0166] Substitute the maximum friction parameter, the minimum friction parameter, and the corresponding number of revolutions into the preset cut resistance calculation formula to obtain the cut resistance parameter.
[0167] In some possible embodiments, each tire rubber sample is tested based on the impact head type of the cut resistance testing device and at least two set coil numbers to obtain cut resistance parameters corresponding to each set coil number, and the test further includes:
[0168] When the impact head of the cut resistance test device is of the second type, the second pressure parameter and the second time parameter corresponding to the second type are determined within a preset second parameter range; wherein the second time parameter is greater than the first time parameter.
[0169] Based on the second pressure parameter, the second time parameter, and at least two set number of revolutions, the cut resistance test device is controlled to test each tire rubber sample to obtain at least two resistance parameters corresponding to each set number of revolutions.
[0170] The corresponding cut resistance parameter is calculated based on the second pressure parameter and at least two resistance parameters corresponding to each set number of revolutions.
[0171] In some possible embodiments, the target tire rubber formulation is determined based on the cut resistance curve, including:
[0172] The minimum cut resistance parameter corresponding to each set number of revolutions is determined based on the cut resistance curve, and the number of minimum cut resistance parameters contained in each tire rubber sample is counted based on all the minimum cut resistance parameters.
[0173] The tire rubber formulation corresponding to the tire rubber sample containing the largest number of minimum cut resistance parameters is taken as the target tire rubber formulation.
[0174] In some possible embodiments, the impact head surface of the cut resistance test device is uniformly distributed with metal particles. The shape of the metal particles is any one of spheres, cones, triangular pyramids, or cubes, and the material of the metal particles is any one of iron, copper, nickel, or stainless steel.
[0175] This application also provides a computer-readable storage medium having a computer program stored thereon, which, when executed by a processor, implements the steps of the above-described method. The computer-readable storage medium may include, but is not limited to, any type of disk, including floppy disks, optical disks, DVDs, CD-ROMs, microdrives, as well as magneto-optical disks, ROMs, RAMs, EPROMs, EEPROMs, DRAMs, VRAMs, flash memory devices, magnetic cards or optical cards, nanosystems (including molecular memory ICs), or any type of medium or device suitable for storing instructions and / or data.
[0176] It should be noted that, for the sake of simplicity, the foregoing method embodiments are all described as a series of actions. However, those skilled in the art should understand that this application is not limited to the described order of actions, as some steps may be performed in other orders or simultaneously according to this application. Furthermore, those skilled in the art should also understand that the embodiments described in the specification are preferred embodiments, and the actions and modules involved are not necessarily essential to this application.
[0177] In the above embodiments, the descriptions of each embodiment have different focuses. For parts not described in detail in a certain embodiment, please refer to the relevant descriptions in other embodiments.
[0178] In the several embodiments provided in this application, it should be understood that the disclosed apparatus can be implemented in other ways. For example, the apparatus embodiments described above are merely illustrative; for instance, the division of units is only a logical functional division, and in actual implementation, there may be other division methods. For example, multiple units or components may be combined or integrated into another system, or some features may be ignored or not executed. Furthermore, the coupling or direct coupling or communication connection shown or discussed may be through some service interface; the indirect coupling or communication connection between apparatuses or units may be electrical or other forms.
[0179] The units described as separate components may or may not be physically separate. The components shown as units may or may not be physical units; that is, they may be located in one place or distributed across multiple network units. Some or all of the units can be selected to achieve the purpose of this embodiment according to actual needs.
[0180] Furthermore, the functional units in the various embodiments of this application can be integrated into one processing unit, or each unit can exist physically separately, or two or more units can be integrated into one unit. The integrated unit can be implemented in hardware or as a software functional unit.
[0181] If the integrated unit is implemented as a software functional unit and sold or used as an independent product, it can be stored in a computer-readable storage device (CMD). Based on this understanding, the technical solution of this application, in essence, or the part that contributes to the prior art, or all or part of the technical solution, can be embodied in the form of a software product. This computer software product is stored in a memory and includes several instructions to cause a computer device (which may be a personal computer, server, or network device, etc.) to execute all or part of the steps of the methods of the various embodiments of this application. The aforementioned memory includes various media capable of storing program code, such as a USB flash drive, read-only memory (ROM), random access memory (RAM), portable hard drive, magnetic disk, or optical disk.
Claims
1. A method of testing the cut resistance of a tire rubber, characterized in that, include: Samples are prepared according to at least two tire rubber formulations to obtain tire rubber samples corresponding to each tire rubber formulation; wherein each tire rubber formulation contains at least two formulation materials, and there is at least one formulation material of a different type between any two tire rubber formulations; Each tire rubber sample is tested based on the type of impact head of the cut resistance testing device and at least two set number of revolutions to obtain cut resistance parameters corresponding to each set number of revolutions. Based on all the cut resistance parameters corresponding to all the tire rubber samples and the corresponding set number of revolutions, a cut resistance curve is generated, and the target tire rubber formula is determined based on the cut resistance curve. The method involves testing each tire rubber sample based on the impact head type and at least two preset coil counts of the cut resistance testing device to obtain cut resistance parameters corresponding to each preset coil count, including: When the impact head of the cut resistance test device is of the first type, the first pressure parameter and the first time parameter corresponding to the first type are determined within the preset first parameter range; Based on the first pressure parameter, the first time parameter, and at least two set number of revolutions, the cut resistance testing device is controlled to test each tire rubber sample to obtain at least two resistance parameters corresponding to each set number of revolutions. Based on the first pressure parameter and each resistance parameter corresponding to each set number of revolutions, a set of friction parameters is obtained, and the maximum friction parameter and the minimum friction parameter are determined from the set of friction parameters. Substitute the maximum friction parameter, the minimum friction parameter, and the corresponding set number of revolutions into the preset cut resistance calculation formula to obtain the cut resistance parameter; The preset formula for calculating cut resistance is as follows: , In the above formula, P corresponds to the cutting resistance parameter. This corresponds to the maximum friction parameter. This corresponds to the minimum friction parameter, and n corresponds to the set number of revolutions.
2. The method according to claim 1, characterized in that, Before controlling the cut resistance testing device to test each tire rubber sample based on the first pressure parameter, the first time parameter, and at least two preset number of revolutions, the method further includes: Each tire rubber sample is fixed in a designated position, and the impact head of the cut resistance test device is controlled to move towards the tire rubber sample in the designated position. Sample images containing the tire rubber sample are acquired at preset time intervals, and the inner contour feature lines and outer contour feature lines of the tire rubber sample are identified from each sample image. Calculate the first shortest distance from the center point of the tire rubber sample to the inner contour feature line and the second shortest distance to the outer contour feature line, and obtain the ratio between the first shortest distance and the second shortest distance; The step of controlling the cut resistance testing device to test each tire rubber sample based on the first pressure parameter, the first time parameter, and at least two preset number of revolutions includes: When the ratio corresponding to any of the sample images is detected to exceed the preset ratio threshold, the impact head of the cut resistance testing device is controlled to stop moving towards the tire rubber sample, and the cut resistance testing device is controlled to test each tire rubber sample based on the first pressure parameter, the first time parameter, and at least two preset number of revolutions.
3. The method according to claim 1, characterized in that, The method of testing each tire rubber sample based on the impact head type and at least two preset coil numbers of the cut resistance testing device to obtain cut resistance parameters corresponding to each preset coil number also includes: When the impact head of the cut resistance test device is of the second type, a second pressure parameter and a second time parameter corresponding to the second type are determined within a preset second parameter range; wherein, the second time parameter is greater than the first time parameter; Based on the second pressure parameter, the second time parameter, and at least two set number of revolutions, the cut resistance testing device is controlled to test each tire rubber sample to obtain at least two resistance parameters corresponding to each set number of revolutions. The corresponding cut resistance parameter is calculated based on the second pressure parameter and at least two resistance parameters corresponding to each set number of revolutions.
4. The method according to claim 1, characterized in that, The determination of the target tire rubber formulation based on the cut resistance curve includes: Based on the cut resistance curve, the minimum cut resistance parameter corresponding to each set number of revolutions is determined, and based on all the minimum cut resistance parameters, the number of minimum cut resistance parameters contained in each tire rubber sample is counted. The tire rubber formulation corresponding to the tire rubber sample containing the largest number of minimum cut resistance parameters is taken as the target tire rubber formulation.
5. The method according to claim 3, characterized in that, The impact head of the cutting resistance test device has metal particles evenly distributed on its surface. The shape of the metal particles is any one of spheres, cones, triangular pyramids, or cubes, and the material of the metal particles is any one of iron, copper, nickel, or stainless steel.
6. A device for testing the cut resistance of tire rubber, characterized in that, include: The sample acquisition module is used to perform sample preparation according to at least two tire rubber formulations to obtain tire rubber samples corresponding to each of the tire rubber formulations; wherein each of the tire rubber formulations contains at least two formulation materials, and there is at least one formulation material of a different type among any two of the tire rubber formulations; The parameter determination module is used to test each of the tire rubber samples based on the type of the impact head of the cut resistance test device and at least two set number of revolutions, and to obtain the cut resistance parameters corresponding to each set number of revolutions. The curve generation module is used to generate a cut resistance curve based on all the cut resistance parameters corresponding to all the tire rubber samples and the corresponding set number of revolutions, and to determine the target tire rubber formula based on the cut resistance curve. The method involves testing each tire rubber sample based on the impact head type and at least two preset coil counts of the cut resistance testing device to obtain cut resistance parameters corresponding to each preset coil count, including: When the impact head of the cut resistance test device is of the first type, the first pressure parameter and the first time parameter corresponding to the first type are determined within the preset first parameter range; Based on the first pressure parameter, the first time parameter, and at least two set number of revolutions, the cut resistance testing device is controlled to test each tire rubber sample to obtain at least two resistance parameters corresponding to each set number of revolutions. Based on the first pressure parameter and each resistance parameter corresponding to each set number of revolutions, a set of friction parameters is obtained, and the maximum friction parameter and the minimum friction parameter are determined from the set of friction parameters. Substitute the maximum friction parameter, the minimum friction parameter, and the corresponding set number of revolutions into the preset cut resistance calculation formula to obtain the cut resistance parameter; The preset formula for calculating cut resistance is as follows: , In the above formula, P corresponds to the cutting resistance parameter. This corresponds to the maximum friction parameter. This corresponds to the minimum friction parameter, and n corresponds to the set number of revolutions.
7. A device for testing the cut resistance of tire rubber, characterized in that, Including the processor and memory; The processor is connected to the memory; The memory is used to store executable program code; The processor runs a program corresponding to the executable program code stored in the memory to perform the steps of the method as described in any one of claims 1-5.
8. A computer-readable storage medium having a computer program stored thereon, characterized in that, The computer-readable storage medium stores instructions that, when executed on a computer or processor, cause the computer or processor to perform the steps of the method as described in any one of claims 1-5.
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