All-steel tire tread semi-finished product design calculation method and system
By dividing the semi-finished tire tread into tread rubber, base rubber, and transition rubber, and calculating the volume and parameters of each part, the problems of uneven thickness and low efficiency in traditional design are solved, and efficient and accurate design is achieved.
Patent Information
- Application Number
- CN202511157713.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2025-08-19
- Publication Date
- 2025-11-21
AI Technical Summary
Traditional all-steel tire tread semi-finished product design relies on empirical value algorithms, resulting in uneven thickness of the tread groove bottom rubber, low development efficiency, and low design accuracy.
The semi-finished tire tread is divided into three parts: tread rubber, tread base rubber, and transition rubber sheet. Precise design is achieved by calculating the volume and design parameters of each part.
It improves design accuracy and development efficiency, solves the problem of multiple debugging in traditional methods, and significantly saves time and costs.
Smart Images
Figure CN120995594A_ABST
Abstract
Description
Technical Field
[0001] This invention relates to the field of tire tread semi-finished product design technology, and in particular to a design calculation method and system for all-steel tire tread semi-finished products. Background Technology
[0002] In the tire manufacturing industry, all-steel tires are widely used in commercial vehicles, construction machinery, and other fields due to their high load-bearing capacity and excellent wear resistance. As a key component that directly contacts the ground, the tread's design quality directly affects the tire's ground contact performance, wear resistance, and service life. Tread semi-finished products refer to the pre-processed components of the tire tread before molding; the accuracy of their geometric dimensions and material distribution is fundamental to ensuring the performance of the finished tire.
[0003] Traditional all-steel tire tread semi-finished product design has long relied on empirical algorithms. These algorithms use a thickness ratio of 1.2-1.4 (median thickness to shoulder thickness) as the core parameter, manually estimating the dimensions of various tread components, requiring multiple adjustments. Specifically, traditional technical solutions typically rely solely on thickness ratios from historical production data to calculate the cross-sectional dimensions of components such as tread rubber and base rubber, lacking quantitative analysis of material volume distribution and molding process parameters. Therefore, traditional methods are prone to issues such as excessively thin or thick tread groove bottom rubber, long development times, and uneven rubber distribution, directly leading to low development efficiency and low design accuracy. Summary of the Invention
[0004] To address the shortcomings of existing technologies, this invention provides a design calculation method and system for semi-finished all-steel tire treads. This invention divides the semi-finished tire tread into three parts: tread rubber, tread base rubber, and transition rubber sheet. By calculating the volume of each part and combining it with design parameters, the design calculation of the semi-finished tire tread is realized, which greatly improves development efficiency and design accuracy.
[0005] To achieve the above objectives, the present invention adopts the following technical solution: In a first aspect, the present invention provides a design calculation method for a semi-finished all-steel tire tread, comprising: Obtain the design parameters of the semi-finished tire tread and design the material distribution diagram of the semi-finished tire tread, which includes tread rubber, tread base rubber and transition rubber sheet. The contour curves of the tread base rubber and the transition rubber are closed respectively, and after generating a surface region, they are rotated around the axis to become a solid. The total volume of the tread base rubber and the transition rubber is obtained by using the volume query command. Construct a three-dimensional model of the tread compound and obtain the volume of the tread compound based on the three-dimensional model; Based on the tread rubber volume, tread base rubber volume, transition rubber volume, and design parameters, the length, area, shoulder width, total width, center thickness, and shoulder thickness of the semi-finished tire tread are calculated.
[0006] As a further technical solution, the tire tread semi-finished material distribution diagram specifically includes tread rubber located on the outermost side of the tire and tread base rubber located on the inner side of the tread rubber. A transition sheet is designed on the inner side of the tread base rubber, and the tread base rubber is connected to the tire carcass structure through the transition sheet.
[0007] As a further technical solution, the design parameters of the tire tread semi-finished product include structural parameters and empirical parameters. The structural parameters include belt drum circumference, belt layer thickness, tread center thickness, tread running surface width, tread bottom width, tread saturation, and tread thickness at the end of the widest belt layer. The empirical parameters include length correction value and tensile coefficient.
[0008] As a further technical solution, the length of the semi-finished tire tread is calculated as follows: ;in, This indicates the length of the semi-finished tire tread. Indicates the circumference of the belted drum. Indicates the thickness of the belt layer. Indicates the thickness at the center of the tire tread. Indicates the length correction value; Based on the volume of the tread compound, the tread base compound, and the transition film, and the length of the tire tread semi-finished product, the area of the tread compound, the tread base compound, and the transition film in the tire tread semi-finished product is calculated.
[0009] As a further technical solution, the shoulder width of the semi-finished tire tread is calculated as follows: ;in, This indicates the shoulder width of the semi-finished tire tread. Indicates the width of the tire tread surface. Indicates the elongation coefficient; The total width of the semi-finished tire tread is calculated as follows: ;in, This indicates the total width of the semi-finished tire tread. This indicates the width of the bottom of the tire tread.
[0010] As a further technical solution, the thickness of the center of the tire tread semi-finished product is calculated as follows: ;in, This indicates the thickness of the tire tread at its center. Indicates the thickness at the center of the tire tread. Indicates the saturation of the pattern.
[0011] As a further technical solution, the shoulder thickness of the semi-finished tire tread is calculated as follows: ;in, This indicates the shoulder thickness of the semi-finished tire tread. This indicates the tread thickness at the endpoint of the widest bundle layer.
[0012] Secondly, the present invention provides a design calculation system for semi-finished all-steel tire treads, comprising the following modules: The tire tread semi-finished product parameter acquisition and material distribution map design model is configured to: acquire the design parameters of the tire tread semi-finished product and design the tire tread semi-finished product material distribution map, wherein the tire tread semi-finished product material distribution map includes tread rubber, tread base rubber and transition rubber sheet; The volume calculation module for the tread base rubber and transition rubber is configured to: perform closed processing on the contour curves of the tread base rubber and transition rubber respectively, generate a surface region, rotate it around the axis to become a solid, and obtain the volume of the tread base rubber and the volume of the transition rubber respectively through the volume query command; The tread rubber volume calculation module is configured to: construct a three-dimensional model of the tread rubber and obtain the tread rubber volume based on the three-dimensional model; The tire tread semi-finished product design calculation module is configured to calculate the length, area, shoulder width, total width, center thickness, and shoulder thickness of the tire tread semi-finished product based on the tread rubber volume, tread base rubber volume, transition rubber volume, and design parameters.
[0013] One or more technical solutions of the present invention have the following beneficial effects: This invention divides the semi-finished tire tread into three parts: tread rubber, tread base rubber, and transition rubber sheet. The volume of each part is calculated separately, and then, combined with relevant design parameters, the length, area, shoulder width, total width, center thickness, and shoulder thickness of the semi-finished tire tread are calculated. This ensures that all parameters meet the design objectives, fundamentally solving the technical problems of excessively thin or thick tread groove rubber and uneven rubber distribution caused by traditional empirical value algorithms.
[0014] This invention enables products to achieve their design goals with a single debugging session through calculation and design, changing the situation where traditional methods require multiple debugging sessions due to unreasonable design, greatly saving development time and costs, and significantly improving development efficiency. Attached Figure Description
[0015] The accompanying drawings, which form part of this invention, are used to provide a further understanding of the invention. The illustrative embodiments of the invention and their descriptions are used to explain the invention and do not constitute an improper limitation of the invention.
[0016] Figure 1This is a flowchart of the tire tread semi-finished product design calculation method in this invention; Figure 2 This is a distribution diagram of the tire tread semi-finished material in this invention. Detailed Implementation
[0017] It should be noted that the following detailed description is illustrative and intended to provide further explanation of the invention. Unless otherwise specified, all technical and scientific terms used in this invention have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains.
[0018] Example 1 This embodiment provides a design calculation method for semi-finished all-steel tire treads, such as... Figure 1 As shown, the specific steps are as follows: S1: Obtain the design parameters of the tire tread semi-finished product and design the material distribution diagram of the tire tread semi-finished product, which includes tread rubber, tread base rubber and transition rubber sheet.
[0019] In step S1, the design parameters of the semi-finished tire tread are obtained, including structural parameters and empirical parameters. The structural parameters include belt drum circumference, belt layer thickness, tread center thickness, tread running surface width, tread bottom width, tread saturation, and tread thickness at the end of the widest belt layer. The empirical parameters include length correction value and tensile coefficient.
[0020] In this embodiment, as Figure 2 As shown in the tire tread semi-finished material distribution diagram, it specifically includes tread rubber A located on the outermost side of the tire, as well as tread base rubber and transition rubber B located on the inner side of the tread rubber. The transition rubber is designed at the bottom of the tread base rubber, and the tread base rubber is connected to the tire carcass structure through the transition rubber.
[0021] S2: Close the contour curves of the tread base rubber and the transition rubber respectively, generate a surface region, rotate it around the axis to become a solid, and obtain the total volume of the tread base rubber and the transition rubber through the volume query command. Construct a three-dimensional model of the tread compound and obtain its volume based on the model.
[0022] In step S2, the volume of the tread base rubber and transition rubber is calculated using 2D CAD software. The method involves closing the contour curves of the tread base rubber and transition rubber, inputting the curve closure BOUNDARY, generating a region REGION, rotating it around the axis to obtain a solid REVOLVE, and then using the MASSPROP command to obtain the total volume of the tread base rubber and transition rubber. The tread rubber volume is then calculated using 3D UG software. The method involves creating a 3D model of the tread rubber in 3D UG software, and then using the volume query command to obtain the tread rubber volume based on the created 3D model.
[0023] Fill all the data obtained above into Table 1 to calculate the length, area, shoulder width, total width, center thickness, and shoulder thickness of the semi-finished tire tread.
[0024]
[0025] S3: Based on the tread rubber volume, tread base rubber volume, transition rubber volume, and design parameters, calculate the length, area, shoulder width, total width, center thickness, and shoulder thickness of the semi-finished tire tread.
[0026] In step S3, the length of the semi-finished tire tread is calculated as follows: ;in, This indicates the length of the semi-finished tire tread. Indicates the circumference of the belted drum. Indicates the thickness of the belt layer. Indicates the thickness at the center of the tire tread. This represents the length correction value. In this embodiment, the length correction value is an empirical coefficient value, which is generally taken as 5-10mm.
[0027] Based on the volumes of the tread compound, tread base compound, and transition film, and the length of the semi-finished tire tread, the areas of the tread compound, tread base compound, and transition film in the semi-finished tire tread are calculated, specifically: ;in, This indicates the area of the tread rubber, tread base rubber, and transition rubber. This represents the volume of the tread rubber, tread base rubber, and transition rubber sheet calculated in step S2. This indicates the length of the semi-finished tire tread.
[0028] The shoulder width of a semi-finished tire tread is calculated as follows: ;in, This indicates the shoulder width of the semi-finished tire tread. Indicates the width of the tire tread surface. The tensile coefficient represents the flowability and extensibility of the rubber compound. In this embodiment, it is obtained through daily measurements and is specifically 1.1.
[0029] The total width of the semi-finished tire tread is calculated as follows: ;in, This indicates the total width of the semi-finished tire tread. This indicates the width of the bottom of the tire tread.
[0030] The method for calculating the thickness of the center of the tire tread semi-finished product is as follows: ;in, This indicates the thickness of the tire tread at its center. Indicates the thickness at the center of the tire tread. This indicates tread saturation. Tread saturation is a parameter that measures the proportion of the tire tread blocks (i.e., the rubber parts in contact with the ground) to the entire tread. It is usually expressed as a percentage. Tread saturation = (total tread block area ÷ total tread area) × 100%. In this embodiment, the tread saturation is taken as 85%.
[0031] The shoulder thickness of a semi-finished tire tread is calculated as follows: ;in, This indicates the shoulder thickness of the semi-finished tire tread. This indicates the tread thickness at the endpoint of the widest bundle layer.
[0032] Example 2 This embodiment provides a design calculation system for semi-finished all-steel tire treads, including the following modules: The tire tread semi-finished product parameter acquisition and material distribution map design model is configured to: acquire the design parameters of the tire tread semi-finished product and design the tire tread semi-finished product material distribution map, wherein the tire tread semi-finished product material distribution map includes tread rubber, tread base rubber and transition rubber sheet; The volume calculation module for the tread base rubber and transition rubber is configured to: perform closed processing on the contour curves of the tread base rubber and transition rubber respectively, generate a surface region, rotate it around the axis to become a solid, and obtain the total volume of the tread base rubber and transition rubber through the volume query command; The tread rubber volume calculation module is configured to: construct a three-dimensional model of the tread rubber and obtain the tread rubber volume based on the three-dimensional model; The tire tread semi-finished product design calculation module is configured to calculate the length, area, shoulder width, total width, center thickness, and shoulder thickness of the tire tread semi-finished product based on the tread rubber volume, tread base rubber volume, transition rubber volume, and design parameters.
[0033] Various modifications and variations of this invention will be apparent to those skilled in the art. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of this invention should be included within the scope of protection of this invention.
Claims
1. A design calculation method for semi-finished all-steel tire tread, characterized in that, include: Obtain the design parameters of the semi-finished tire tread and design the material distribution diagram of the semi-finished tire tread, which includes tread rubber, tread base rubber and transition rubber sheet. The contour curves of the tread base rubber and the transition rubber are closed respectively, and after generating a surface region, they are rotated around the axis to become a solid. The total volume of the tread base rubber and the transition rubber is obtained by using the volume query command. Construct a three-dimensional model of the tread compound and obtain the volume of the tread compound based on the three-dimensional model; Based on the tread rubber volume, tread base rubber volume, transition rubber volume, and design parameters, the length, area, shoulder width, total width, center thickness, and shoulder thickness of the semi-finished tire tread are calculated.
2. The design and calculation method for a semi-finished all-steel tire tread as described in claim 1, characterized in that, The tire tread semi-finished material distribution diagram specifically includes the tread rubber located on the outermost side of the tire and the tread base rubber located on the inner side of the tread rubber. A transition sheet is designed on the inner side of the tread base rubber, and the tread base rubber is connected to the tire carcass structure through the transition sheet.
3. The design and calculation method for a semi-finished all-steel tire tread as described in claim 1, characterized in that, The design parameters of the semi-finished tire tread include structural parameters and empirical parameters. The structural parameters include belt drum circumference, belt layer thickness, tread center thickness, tread running surface width, tread bottom width, tread saturation, and tread thickness at the end of the widest belt layer. The empirical parameters include length correction value and tensile coefficient.
4. The design and calculation method for a semi-finished all-steel tire tread as described in claim 1, characterized in that, The length of the semi-finished tire tread is calculated as follows: ;in, This indicates the length of the semi-finished tire tread. Indicates the circumference of the belted drum. Indicates the thickness of the belt layer. Indicates the thickness at the center of the tire tread. Indicates the length correction value; Based on the volume of the tread compound, the tread base compound, and the transition film, and the length of the tire tread semi-finished product, the area of the tread compound, the tread base compound, and the transition film in the tire tread semi-finished product is calculated.
5. The design and calculation method for a semi-finished all-steel tire tread as described in claim 1, characterized in that, The shoulder width of the semi-finished tire tread is calculated as follows: ;in, This indicates the shoulder width of the semi-finished tire tread. Indicates the width of the tire tread surface. Indicates the elongation coefficient; The total width of the semi-finished tire tread is calculated as follows: ;in, This indicates the total width of the semi-finished tire tread. This indicates the width of the bottom of the tire tread.
6. The design and calculation method for a semi-finished all-steel tire tread as described in claim 1, characterized in that, The method for calculating the thickness of the center of the tire tread semi-finished product is as follows: ;in, This indicates the thickness of the tire tread at its center. Indicates the thickness at the center of the tire tread. Indicates the saturation of the pattern.
7. The design and calculation method for a semi-finished all-steel tire tread as described in claim 1, characterized in that, The shoulder thickness of the semi-finished tire tread is calculated as follows: ;in, This indicates the shoulder thickness of the semi-finished tire tread. This indicates the tread thickness at the endpoint of the widest bundle layer.
8. A design calculation system for semi-finished all-steel tire treads, characterized in that, Includes the following modules: The tire tread semi-finished product parameter acquisition and material distribution map design model is configured to: acquire the design parameters of the tire tread semi-finished product and design the tire tread semi-finished product material distribution map, wherein the tire tread semi-finished product material distribution map includes tread rubber, tread base rubber and transition rubber sheet; The volume calculation module for the tread base rubber and transition rubber is configured to: perform closed processing on the contour curves of the tread base rubber and transition rubber respectively, generate a surface region, rotate it around the axis to become a solid, and obtain the volume of the tread base rubber and the volume of the transition rubber respectively through the volume query command; The tread rubber volume calculation module is configured to: construct a three-dimensional model of the tread rubber and obtain the tread rubber volume based on the three-dimensional model; The tire tread semi-finished product design calculation module is configured to calculate the length, area, shoulder width, total width, center thickness, and shoulder thickness of the tire tread semi-finished product based on the tread rubber volume, tread base rubber volume, transition rubber volume, and design parameters.
9. A computer-readable storage medium having a program stored thereon, characterized in that, When executed by the processor, the program implements the steps in the design calculation method for a semi-finished all-steel tire tread as described in any one of claims 1-7.
10. An electronic device comprising a memory, a processor, and a program stored in the memory and executable on the processor, characterized in that, When the processor executes the program, it implements the steps in the design calculation method for a semi-finished all-steel tire tread as described in any one of claims 1-7.