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Tire wear prediction method

A prediction method, tire technology, applied in the direction of measuring device, test wear resistance, test sample preparation, etc., can solve the problems of inability to guarantee the accuracy of test indicators, incompleteness, and inability to detect tire wear

Active Publication Date: 2021-07-06
特拓(青岛)轮胎技术有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] For indoor testing of finished tires, traditional drum tire testing machines, flat tire testing machines and flat belt tire testing machines are generally used; however, roads paved with cement or asphalt are used for the experimental simulation of the above tire wear testing machines. , it is impossible to simulate the tire wear test under the actual uneven road conditions, that is, it is impossible to test the tire wear on the actual road indoors
[0004] For the road test of finished tires, a special inspection agency or enterprise chooses the experimental point to carry out the road test and track the mileage test data. However, for the tire wear measurement in the road test, the visual method is generally used to characterize the tire wear , human factors are large, and the accuracy of the test indicators cannot be guaranteed
[0005] At present, there is no indoor tire wear detection equipment used to simulate the tire wear experiment on the actual uneven road conditions, and there is no perfect and accurate index to represent the wear data.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0049] Embodiment one, refer to Figure 1-Figure 11 .

[0050] A tire wear prediction method, wear test according to the following steps:

[0051] S1: Preparation of the tire sample 300: calender the compounded rubber of the tire sample 300 to a predetermined thickness, cut it into a rubber strip with a predetermined width, and wind it on the rubber hub 200;

[0052] S2: vulcanization of the tire sample 300: placing the tire sample 300 in step S1 into the vulcanization mold 100 for vulcanization;

[0053] Specifically, in this embodiment, the tire sample 300 is put into the vulcanization mold 100 together with the rubber hub 200, vulcanized under a fixed pressure, and the force value is controlled at 147KN±3KN. Change the vulcanization characteristics of sample 300, and control the total weight of tire sample 300 at 116g±2.5g;

[0054] S3: Wear test of the tire sample 300: load the tire sample 300 vulcanized in step S2 onto the road condition simulation loading device, simu...

Embodiment 2

[0070] Embodiment two, refer to Figure 2-Figure 9 .

[0071] A road condition simulation loading device, including a frame 570, also includes:

[0072] A rotating shaft 540, the rotating shaft 540 is rotatably connected to the frame 570, and it can rotate freely on the frame 570;

[0073] A driving wheel 560, the driving wheel 560 is fixedly connected to the rotating shaft 540, and is used to drive the rotating shaft 540 to rotate;

[0074] A rotating drum 550, the rotating drum 550 is fixedly connected to the rotating shaft 540, and its surface is provided with several obstacle protrusions 551, and the obstacle protrusions 551 are irregularly and evenly arranged;

[0075] Linear drive device 510, said linear drive device 510 is arranged corresponding to rotating drum 550, and is fixedly connected on the frame 570 (the part of frame 570 connected with linear drive device 510 is not shown in the figure), said linear drive device 510 Used to adjust the height of the test whe...

Embodiment 3

[0091] Embodiment three, refer to Figure 11 .

[0092] The tire sample 300 is cut according to the following method:

[0093] A1: From the outer edge of the tire sample 300, cut radially inward, stop after cutting to a preset depth, then cut along the circumferential direction, cut off the rubber strip a, and mark the direction of rotation; in this embodiment, the preset depth The control is 5mm±1.0mm, and the preset thickness control is 5mm±1.0mm;

[0094] A2: Cut off both sides of the rubber strip a cut in step A1, and intercept the middle part of the rubber strip b; in this embodiment, the width of the middle part of the rubber strip b is controlled to be 20mm ± 0.5mm;

[0095] A3: Cut the rubber strip b cut in step A2 horizontally into four equal parts to obtain 4 rubber strips c; in this embodiment, the length of each rubber strip c is controlled to be 76mm ± 0.5mm;

[0096] A4: Cut the 4 rubber strips c in step A3 downward from the front end and 1 / 2 thickness of the ...

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Abstract

The invention discloses a tire wear prediction method, and relates to the technical field of tire wear tests. In the technical field of tire abrasion tests, abrasion tests are carried out according to the following steps: S1, preparing a tire sample; S2, vulcanizing the tire sample; S3, carrying out a tire sample abrasion test; S4, cutting the tire sample; S5, carrying out swelling treatment on the tire sample; S6, performing a tire sample stripping experiment; and S7, characterizing the abrasion data. The tire wear prediction method designed by the invention can simulate the running of a tire on a real road surface to carry out a tire abrasion experiment, and the prediction result is closer to the tire abrasion degree under the real road surface; and according to the invention, the stripping force / stripping strength is finally adopted to characterize the abrasion degree, and compared with the visual inspection method under the traditional road test, the data stability is better and more objective.

Description

technical field [0001] The invention relates to the technical field of tire wear tests, in particular to a tire wear prediction method. Background technique [0002] With the increase of global vehicles and the growth of types, the types of rubber tires are increasing, and the requirements for use are becoming more and more stringent. As we all know, the wear resistance of tires is an important factor in determining the durability of tires. [0003] For indoor testing of finished tires, traditional drum tire testing machines, flat tire testing machines and flat belt tire testing machines are generally used; however, roads paved with cement or asphalt are used for the experimental simulation of the above tire wear testing machines. , it is impossible to simulate the tire wear test under the actual uneven road conditions, that is, it is impossible to test the tire wear on the actual road indoors. [0004] For the road test of finished tires, a special inspection agency or en...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N3/56G01N19/04G01N1/28
CPCG01N3/56G01N19/04G01N1/28G01N2203/0298
Inventor 李红卫薛伯勇赵相帅于鑫顾培霜朱家顺
Owner 特拓(青岛)轮胎技术有限公司