A full steel radial tire

Abstract

This utility model relates to an anti-uniform wear all-steel radial tire, including an outer tire carcass and a steel belt layer fixedly connected to the inside of the outer tire carcass. An inner tire carcass containing multiple chambers is arranged around the outer tire carcass and the steel belt layer. The chambers of the inner tire carcass are connected by miniature solenoid valves. The miniature solenoid valves adaptively adjust the uniform wear of the outer tire carcass by controlling the air pressure distribution. A pressure sensor that adaptively controls the opening and closing of the miniature solenoid valves is installed inside the inner tire carcass. This utility model, through the multi-chamber inner tire carcass set between the outer tire carcass and the steel belt layer, in conjunction with the pressure sensor and the miniature solenoid valves, uses a high-precision pressure sensor to monitor the air pressure data of each chamber of the tire in real time, and links the miniature solenoid valves to quickly complete the dynamic adjustment of the tire air pressure, thereby achieving uniform pressure at the ground of the outer tire carcass, significantly alleviating the problem of uniform wear in the tire shoulder area, and avoiding the attenuation of the anti-uniform wear effect caused by the wear of the outer tire tread pattern.

Description

Technical Field

[0001] This utility model relates to the field of tire anti-uniform wear technology, specifically to an anti-uniform wear all-steel radial tire. Background Technology

[0002] All-steel radial tires are radial tires that use an all-steel cord ply structure. The tire carcass cords are arranged in the radial direction and are bound together by steel wire belts at an oblique angle of 15° to 25°. This design gives the tire excellent load-bearing capacity, impact resistance and wear resistance, making it particularly suitable for harsh working conditions such as medium and heavy-duty trucks and construction machinery.

[0003] Under heavy or uneven load conditions (such as a truck carrying cargo on one side or driving on mountain curves), all-steel radial tires are prone to uneven wear on one side due to uneven ground pressure distribution in the tire shoulder area, which shortens tire life. Existing technical solutions mostly involve increasing the thickness of the tire shoulder rubber or adjusting the tread depth. However, after the tire wears out, the anti-wear effect produced by increasing the thickness of the tire shoulder rubber or adjusting the tread depth will decrease, and the problem of uneven pressure distribution is not fundamentally solved, resulting in poor performance. Utility Model Content

[0004] Based on the above description, this utility model provides an anti-uniform wear all-steel radial tire to solve the problem that the anti-uniform wear effect of existing all-steel radial tires will decrease after the tire wears down, even when the tire wears down, by increasing the thickness of the tire shoulder rubber or adjusting the tread depth.

[0005] The technical solution of this utility model to solve the above-mentioned technical problems is as follows: An anti-uniform wear all-steel radial tire includes an outer tire body and a steel belt layer fixedly connected to the inner side of the outer tire body. An inner tire body containing multiple chambers is arranged around the outer tire body and the steel belt layer. The chambers of the inner tire body are connected by a miniature solenoid valve. The miniature solenoid valve adaptively adjusts the uniform wear of the outer tire body by controlling the air pressure distribution. A pressure sensor that adaptively controls the opening and closing of the miniature solenoid valve is installed inside the inner tire body.

[0006] Based on the above technical solution, the present invention can be further improved as follows.

[0007] Furthermore, an installation groove is provided on the inner side of the outer tire body. The installation groove is annular, and its axis coincides with the axis of the outer tire body. The two sides of the inner wall of the installation groove are semi-circular.

[0008] Furthermore, the inner tube body is fixedly connected to the inner side of the mounting groove, and the two sides of the inner tube body that are far apart from each other are arranged in a semi-circular shape and fit snugly against the two semi-circular sides of the inner wall of the mounting groove.

[0009] Furthermore, the inner tube body has cavities at equal intervals on its inner side. The cavities are annular and their axes coincide with the axis of the outer tube body. The inner walls of the cavities are semi-circular on both sides, and their axes coincide with the axes of the semi-circular sides of the inner tube body.

[0010] Furthermore, a vent is provided between two adjacent cavities, and the miniature solenoid valve is fixedly connected to the inside of the vent.

[0011] Furthermore, the pressure sensor is fixedly connected to the inside of the cavity, and a microcontroller is fixedly connected to the inside of the cavity. The microcontroller is electrically connected to the pressure sensor and the miniature solenoid valve.

[0012] Furthermore, a flexible RFID tag antenna is fixedly connected to the inner side of the cavity. The output end of the flexible RFID tag antenna is equipped with a rectifier circuit and is electrically connected to the miniature solenoid valve, pressure sensor, and microcontroller.

[0013] Compared with the prior art, the technical solution of this application has the following beneficial technical effects:

[0014] This invention utilizes a multi-cavity inner tube located between the outer tire body and the steel belt layer. Combined with a pressure sensor and a miniature solenoid valve, the high-precision pressure sensor monitors the air pressure data of each tire cavity in real time. This, along with the linkage of the miniature solenoid valve, rapidly and dynamically adjusts the tire's air pressure, achieving uniform pressure at the tire body's contact with the ground. This significantly alleviates uneven wear in the tire shoulder area and prevents the reduction in anti-wear effect caused by wear on the tire tread pattern, thus comprehensively improving the tire's adaptability to different road conditions and its service life. Attached Figure Description

[0015] Figure 1 A schematic diagram of the structure of an anti-uniform wear all-steel radial tire provided for an embodiment of this utility model;

[0016] Figure 2 This is a schematic diagram of the exploded structure of the miniature solenoid valve and the inner tube in an embodiment of this utility model;

[0017] Figure 3 for Figure 2 A magnified view of a portion of region A in the middle;

[0018] Figure 4 An exploded structural diagram of an anti-uniform wear all-steel radial tire provided for an embodiment of this utility model;

[0019] The attached diagram lists the components represented by each number as follows:

[0020] 1. Outer tire body; 11. Mounting groove; 2. Steel wire belt layer; 3. Inner tire body; 31. Cavity; 32. Vent hole; 4. Miniature solenoid valve; 5. Pressure sensor; 6. Microcontroller; 7. Flexible RFID tag antenna. Detailed Implementation

[0021] To facilitate understanding of this application, a more complete description will be provided below with reference to the accompanying drawings, which illustrate embodiments of the present application. However, the present application can be implemented in many different forms and is not limited to the embodiments described herein. Rather, these embodiments are provided so that the disclosure of this application will be thorough and complete.

[0022] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs. The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the application.

[0023] Please see Figure 1-4 This utility model discloses an anti-uniform wear all-steel radial tire, including an outer tire body 1 and a steel belt layer 2 fixedly connected to the inner side of the outer tire body 1. An inner tire body 3 containing multiple chambers is arranged around the outer tire body 1 and the steel belt layer 2. The chambers of the inner tire body 3 are connected to a miniature solenoid valve 4. The miniature solenoid valve 4 adaptively adjusts the uniform wear of the outer tire body 1 by controlling the air pressure distribution. A pressure sensor 5 is installed inside the inner tire body 3 to control the opening and closing of the miniature solenoid valve 4 by adaptive air pressure control.

[0024] Please see Figure 4 The inner side of the outer tire body 1 is provided with an installation groove 11. The installation groove 11 is annular and its axis coincides with the axis of the outer tire body 1. The two sides of the inner wall of the installation groove 11 are semi-circular. The semi-circular sides of the installation groove 11 form a matching structure with the semi-circular sides of the inner tire body 3 and the semi-circular sides of the cavity 31. This allows the cavity 31 to expand outward more effectively and comprehensively during pressurization and expansion, thereby dynamically adjusting the pressure. The outer tire body 1 can deform more smoothly and contact different road conditions, achieving uniform ground pressure of the outer tire body 1. At the same time, the semi-circular sides of the installation groove 11 can also increase the strength of the connection with the inner tire body 3.

[0025] Please see Figure 3The inner tube body 3 is fixedly connected to the inner side of the mounting groove 11. The two sides of the inner tube body 3 that are far apart from each other are arranged in a semi-circular shape and fit snugly against the two sides of the semi-circular inner wall of the mounting groove 11. The inner side of the inner tube body 3 has equidistant cavities 31. The cavities 31 are annular and their axes coincide with the axis of the outer tube body 1. The two sides of the inner wall of the cavity 31 are semi-circular and their axes coincide with the axes of the two sides of the semi-circular inner tube body 3. A vent hole 32 is opened between two adjacent cavities 31. A miniature solenoid valve 4 is fixedly connected to the inner side of the vent hole 32. Multiple vents can be opened and connected between two adjacent cavities 31 to increase the air flow rate, so that the tire can quickly complete the dynamic adjustment of air pressure to adapt to road conditions and reduce the temporary uneven wear caused by the tire contacting different road conditions.

[0026] Please see Figure 3 The pressure sensor 5 is fixedly connected to the inside of the cavity 31. A microcontroller 6 is fixedly connected to the inside of the cavity 31. The microcontroller 6 is electrically connected to the pressure sensor 5 and the micro solenoid valve 4. Each vent 32 is equipped with a micro solenoid valve 4, which is electrically connected to the microcontroller 6. When the tire travels to different road conditions, the pressure sensor 5 will sense the pressure in each cavity 31. According to the pressure, the micro solenoid valve 4 between different cavities 31 will be activated to guide the gas in the high-pressure cavity 31 to the low-pressure cavity 31, thereby homogenizing the pressure in different cavities 31 and reducing uneven wear. The microcontroller 6 can be a low-power chip (such as STMicroelectronics' STM32L4 series), the micro solenoid valve 4 can be SMC's VQD2101-5G (normally closed type, response time 5ms), and the pressure sensor 5 can be TE Connectivity's MS5837-30BA (micro MEMS sensor, range 0~30psi, accuracy ±0.5%).

[0027] Please see Figure 3 A flexible RFID tag antenna 7 is fixedly connected to the inner side of cavity 31. The output end of the flexible RFID tag antenna 7 is equipped with a rectifier circuit and is electrically connected to the micro solenoid valve 4, pressure sensor 5 and microcontroller 6. The flexible RFID tag antenna 7 can be selected from the RI-INL-R9QM series. The flexible RFID tag antenna 7 can be wirelessly powered. A radio frequency energy transmitter needs to be installed at the bottom of the vehicle. The radio frequency energy transmitter at the bottom of the vehicle wirelessly transmits electrical energy to the flexible RFID tag antenna 7 inside the tire. The flexible RFID tag antenna 7 receives high-frequency AC power and converts the high frequency into a stable DC voltage through the rectifier circuit.

[0028] The rectifier circuit consists of rectifier diodes, filter capacitors, and a voltage regulator module. The rectifier diodes convert AC power into pulsed DC power, the filter capacitors smooth the pulse waveform after rectification and reduce voltage fluctuations, and the voltage regulator module is used to output a stable DC voltage. The flexible RFID tag antenna 7 supplies power to the miniature solenoid valve 4, pressure sensor 5, and microcontroller 6 through the rectifier circuit. When the pressure sensor 5 senses different pressures in the cavity 31, the microcontroller 6 receives a signal and activates the miniature solenoid valve 4 between different cavities 31 to guide the gas in the high-pressure cavity 31 toward the low-pressure cavity 31, thus homogenizing the pressure in different cavities 31. The surface of the tire body 1 will undergo slight deformation according to the different pressures inside the cavity 31 to adapt to the road conditions and reduce uneven wear.

[0029] When used herein, the singular forms of “a,” “an,” and “the” may also include the plural forms unless the context clearly indicates otherwise. It should also be understood that the terms “comprising,” “including,” or “having,” etc., specify the presence of the stated feature, whole, step, operation, component, part, or combination thereof, but do not preclude the possibility of the presence or addition of one or more other features, wholes, steps, operations, components, parts, or combinations thereof.

[0030] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A bias-preventing all-steel radial tire comprising an outer carcass (1) and a steel belt (2) fixedly connected to the inner side of the outer carcass (1), characterized in that: An inner tube containing multiple chambers is arranged around the outer tire body (1) and the steel wire bundle layer (2). The chambers of the inner tube body (3) are connected by a miniature solenoid valve (4). The miniature solenoid valve (4) adaptively adjusts the wear of the outer tire body (1) by controlling the air pressure distribution. A pressure sensor (5) is installed inside the inner tube body (3) to adaptively control the opening and closing of the miniature solenoid valve (4).

2. Pneumatic tyre according to claim 1, characterized in that: The inner side of the outer tire body (1) is provided with an installation groove (11). The installation groove (11) is annular and its axis coincides with the axis of the outer tire body (1). The two sides of the inner wall of the installation groove (11) are semi-circular.

3. Pneumatic all-steel radial tyre according to claim 2, characterized in that: The inner tube body (3) is fixedly connected to the inner side of the mounting groove (11). The two sides of the inner tube body (3) that are far apart from each other are arranged in a semi-circular shape and fit together with the two sides of the semi-circular inner wall of the mounting groove (11).

4. Pneumatic all-steel radial tyre according to claim 3, characterized in that: The inner tube (3) has cavities (31) evenly spaced on its inner side. The cavities (31) are annular and their axes coincide with the axis of the outer tube (1). The inner walls of the cavities (31) are semi-circular on both sides and their axes coincide with the axes of the semi-circular sides of the inner tube (3).

5. Pneumatic all-steel radial tyre according to claim 4, characterized in that: A vent (32) is provided between two adjacent cavities (31), and the miniature solenoid valve (4) is fixedly connected to the inside of the vent (32).

6. Pneumatic all-steel radial tyre according to claim 5, characterized in that: The pressure sensor (5) is fixedly connected to the inside of the cavity (31), and a microcontroller (6) is fixedly connected to the inside of the cavity (31). The microcontroller (6) is electrically connected to the pressure sensor (5) and the micro solenoid valve (4).

7. Pneumatic all-steel radial tyre according to claim 6, characterized in that: A flexible RFID tag antenna (7) is fixedly connected to the inner side of the cavity (31). The output end of the flexible RFID tag antenna (7) is provided with a rectifier circuit and is electrically connected to the micro solenoid valve (4), pressure sensor (5) and microcontroller (6).

Images