Zero-degree belt structure all-steel radial tire

Abstract

The application relates to the field of tires, in particular to a zero-degree belt structure all-steel radial tire which comprises a tread, the inside of the tread is sequentially provided with a zero-degree belt layer, a belt layer, an inner liner and soundproof cotton, the zero-degree belt layer comprises an outer zero-degree belt layer and an inner zero-degree belt layer, the outer zero-degree belt layer is made of a hollow steel wire press fabric, the outer side of the inner zero-degree belt layer is fixed with a plurality of groups of protective blocks with triangular cross sections at equal angles, the belt layer is installed on the inner side of the zero-degree belt layer, the hollow steel wire press fabric of the outer zero-degree belt layer is designed, when the tread encounters a sharp object, the front end of the sharp object will be clamped into the outer zero-degree belt layer, then the protective blocks arranged on the outer side of the inner zero-degree belt layer are used to bend the sharp object in the process of high-speed rotation of the tread, so that the sharp object cannot pierce the belt layer and the inner liner.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of tire technology, in particular to a zero-degree belt structure full steel radial tire. BACKGROUND

[0002] The radial tire is a kind of tire product, which is mainly defined from the structure of the tire product. In a broad sense, the radial tire is divided into two types: half-steel radial tire and full-steel radial tire. The full-steel radial tire adopts steel cord for the tire body and the belt layer, which is generally used for trucks and engineering vehicles.

[0003] The zero-degree belt structure adopts three layers of belt layers, and two layers of zero-degree belt layers with a certain width are wound on both sides of the third layer of belt layers. The tire with this structure has strong shoulder rigidity, which is suitable for medium and short distance overloading transportation.

[0004] The full-steel radial tire has the following disadvantages:

[0005] 1. When the tread encounters sharp objects such as needles during rotation, it is easy to cause the belt layer and the inner liner inside the tread to be pierced during the rolling process.

[0006] 2. The belt layer is inconvenient to fix during installation, and can only be fixed by installing the inner liner, which increases the difficulty of producing the tread and reduces the production efficiency. SUMMARY

[0007] The present application provides a zero-degree belt structure full-steel radial tire to solve the technical problems in the prior art.

[0008] The technical solution of the present application to solve the above technical problems is as follows: a zero-degree belt structure full-steel radial tire, comprising a tread, wherein the inside of the tread is sequentially provided with a zero-degree belt layer, a belt layer, an inner liner and acoustic cotton, the zero-degree belt layer comprises an outer zero-degree belt layer and an inner zero-degree belt layer, the outer zero-degree belt layer is made of a steel wire calendered fabric in a hollow shape, the outer side of the inner zero-degree belt layer is fixed with a plurality of groups of protective blocks with a triangular cross section at equal angles, and the belt layer is installed on the inner side of the zero-degree belt layer.

[0009] Preferably, the zero-degree belt structure full-steel radial tire, wherein the cross section of the outer zero-degree belt layer is "U" shaped, the inner wall of the outer zero-degree belt layer is attached with an inner zero-degree belt layer, and the inner zero-degree belt layer is made of a steel wire calendered fabric.

[0010] Preferably, the zero-degree belt structure full-steel radial tire, wherein the inner wall of the inner zero-degree belt layer is provided with a clamping groove on both sides, the opening end of the inner zero-degree belt layer is shaped as narrow inside and wide outside, and the inner zero-degree belt layer and the protective block are in an integrated structure.

[0011] Preferably, the zero-degree belt structure all-steel radial tire, wherein the belt layer comprises a first belt layer, a second belt layer and a third belt layer, the first belt layer, the second belt layer and the third belt layer are sequentially mounted inside the inner zero-degree belt layer, and both ends of the third belt layer are attached inside the clamping groove.

[0012] Preferably, the zero-degree belt structure all-steel radial tire, wherein the third belt layer and the inner zero-degree belt layer form a clamping structure, and the inner zero-degree belt layer and the first belt layer and the second belt layer form a detachable structure.

[0013] Preferably, the zero-degree belt structure all-steel radial tire, wherein the first belt layer, the second belt layer and the third belt layer are all made of calendered steel cord cutting, the first belt layer, the second belt layer and the third belt layer are sequentially attached and fixed, and the width of the first belt layer, the second belt layer and the third belt layer increases sequentially.

[0014] Preferably, the zero-degree belt structure all-steel radial tire, wherein one side of the inner liner is attached to the third belt layer, the outer zero-degree belt layer and the inner zero-degree belt layer, the side away from the third belt layer is provided with a groove, and the inside of the groove is attached with soundproof cotton.

[0015] Preferably, the zero-degree belt structure all-steel radial tire, wherein the protective block is located between the outer zero-degree belt layer and the inner zero-degree belt layer, and the height difference between the two sides of the side surface of the protective block decreases clockwise.

[0016] The beneficial effects of the present application are: the hollow steel cord design of the outer zero-degree belt layer, when the tread encounters a sharp object, the front end of the sharp object will be clamped into the outer zero-degree belt layer, and then the protective block outside the inner zero-degree belt layer will bend the sharp object during the tread height rotation process, so that the sharp object will not pierce the belt layer and the inner liner.

[0017] The inner zero-degree belt layer opening end is designed to be narrow inside and wide outside, which facilitates the installation and placement of the first belt layer and the second belt layer, when the third belt layer is installed into the clamping groove, the position between the third belt layer and the inner zero-degree belt layer is fixed, thereby limiting the first belt layer and the second belt layer between the third belt layer and the inner zero-degree belt layer, so as to realize the fixation of the belt layer, reduce the production difficulty of the tire and improve the production efficiency. BRIEF DESCRIPTION OF DRAWINGS

[0018] Figure 1 It is a three-dimensional structure schematic diagram of the present application;

[0019] Figure 2 It is a cross-sectional structure schematic diagram of the present application;

[0020] Figure 3 For the present invention Figure 2 A schematic diagram of the exploded structure;

[0021] Figure 4 For the present invention Figure 2 A magnified view of the structure at point A in the middle;

[0022] Figure 5 This is a schematic diagram of the outer zero-degree bandgap layer structure of the present invention;

[0023] Figure 6 This is a schematic diagram of the inner zero-degree bandgap layer structure of the present invention.

[0024] The attached diagram lists the components represented by each number as follows:

[0025] 1. Tread; 2. Outer zero-degree belt layer; 3. Inner zero-degree belt layer; 31. Groove; 4. Protective block; 5. Belt layer; 51. First belt layer; 52. Second belt layer; 53. Third belt layer; 6. Inner liner; 7. Sound insulation cotton. Detailed Implementation

[0026] The principles and features of the present invention are described below with reference to the accompanying drawings. The examples given are only for explaining the present invention and are not intended to limit the scope of the present invention.

[0027] like Figure 1 - Figure 6 As shown, a zero-degree belt structure all-steel radial tire includes a tread 1. Inside the tread 1, a zero-degree belt layer, a belt layer 5, an inner liner 6, and sound insulation cotton 7 are installed sequentially. The zero-degree belt layer includes an outer zero-degree belt layer 2 and an inner zero-degree belt layer 3. The outer zero-degree belt layer 2 is made of hollow steel wire rolled cord fabric. Multiple sets of protective blocks 4 with triangular cross sections are fixed at equal angles on the outer side of the inner zero-degree belt layer 3. The belt layer 5 is installed on the inner side of the zero-degree belt layer.

[0028] The outer zero-degree belt layer 2 has a U-shaped cross-section. An inner zero-degree belt layer 3, made of steel wire calendered cord fabric, is attached to the inner wall of the outer zero-degree belt layer 2. The shape and structure of the outer zero-degree belt layer 2 are designed so that when the tire tread encounters a sharp object, the tip of the sharp object will get stuck in the outer zero-degree belt layer 2. A protective block 4 is located between the outer zero-degree belt layer 2 and the inner zero-degree belt layer 3, with the height difference between the two sides of the protective block 4 decreasing clockwise. Then, with the help of the protective block 4 located on the outer side of the inner zero-degree belt layer 3, the sharp object will bend during the rotation of the tire tread 1, preventing it from puncturing the belt layer 5 and the inner liner layer 6.

[0029] The inner zero-degree belt layer 3 has slots 31 on both sides of its inner wall. The opening of the inner zero-degree belt layer 3 is narrower inside and wider outside. The inner zero-degree belt layer 3 and the protective block 4 are an integral structure. The belt layer 5 includes a first belt layer 51, a second belt layer 52, and a third belt layer 53. The first belt layer 51, the second belt layer 52, and the third belt layer 53 are installed sequentially inside the inner zero-degree belt layer 3, with both ends of the third belt layer 53 fitting into the slots 31. The structural design of the opening of the inner zero-degree belt layer 3 facilitates the installation of the first belt layer 51 and the second belt layer 52, and also facilitates the insertion of the third belt layer 53 into the slots 31. The third belt layer 53 and the inner zero-degree belt layer 3 form an engaging structure, and the inner zero-degree belt layer 3, the first belt layer 51, and the second belt layer 52 form a detachable structure. When the two ends of the third belt layer 53 are installed into the slot 31, the position between the third belt layer 53 and the inner zero-degree belt layer 3 is fixed, thereby confining the first belt layer 51 and the second belt layer 52 between the third belt layer 53 and the inner zero-degree belt layer 3, thus achieving the fixation of the belt layer 5, reducing the difficulty of tire production, and improving production efficiency.

[0030] The first belt layer 51, the second belt layer 52, and the third belt layer 53 are all made of calendered steel wire cord fabric. They are sequentially bonded and fixed together, with the widths increasing sequentially. This sequential increase in width allows the second belt layer 52 to fully compress the first belt layer 51, thus securing it. Similarly, the third belt layer 53 fully secures the second belt layer 52, preventing any movement of the first or second belt layers.

[0031] The inner liner 6 is attached to the third belt layer 53, the outer zero-degree belt layer 2, and the inner zero-degree belt layer 3 on one side. A groove is formed on the side away from the third belt layer 53, and sound insulation cotton 7 is attached inside the groove. By installing the sound insulation cotton 7 through the groove, the interior of the tire tread 1 is equipped with sound insulation cotton 7, which can reduce the noise generated during tire rotation and improve the driving experience of the vehicle.

[0032] Working principle: The outer zero-degree belt layer 2, made of hollow steel wire calendered cord, and the protective block 4, which is fixed at an equal angle to the outside of the inner zero-degree belt layer 3, are used when the tire tread 1 is installed on the vehicle and rotates normally. When the tire tread encounters a sharp object, the front end of the sharp object will get stuck in the hollow outer zero-degree belt layer 2, fixing the position of the front end of the sharp object. Then, as the tire rotates, the protective block 4, which is set on the outside of the inner zero-degree belt layer 3, will bend the sharp object, thus preventing the sharp object from puncturing the belt layer 5 and the inner liner layer 6 and causing damage to the belt layer 5 and the inner liner layer 6 inside the tire.

[0033] In the description of this invention, it should be understood that the terms "upper," "lower," "left," and "right," etc., indicating orientation or positional relationships based on the orientation or positional relationships shown in the accompanying drawings, are only for the convenience of describing the invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or a specific orientational structure and operation. Therefore, they should not be construed as limitations on the invention. Furthermore, "first" and "second" are only for descriptive purposes and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Therefore, a feature defined with "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this invention, unless otherwise stated, "multiple" means two or more.

[0034] In the description of this invention, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal communication between two components. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances.

[0035] The foregoing has provided a detailed description of one embodiment of the present invention, but this description is merely a preferred embodiment and should not be construed as limiting the scope of the invention. All equivalent variations and modifications made within the scope of the claims of this invention should still fall within the patent coverage of this invention.

Claims

1. A zero-degree belt structure all-steel radial tire, comprising a tread (1), characterized in that: The tread (1) is sequentially fitted with a zero-degree belt layer, a belt layer (5), an inner liner (6), and sound insulation cotton (7). The zero-degree belt layer includes an outer zero-degree belt layer (2) and an inner zero-degree belt layer (3). The outer zero-degree belt layer (2) is made of hollow steel wire rolled cord fabric. Multiple sets of protective blocks (4) with triangular cross-sections are fixed at equal angles on the outer side of the inner zero-degree belt layer (3). The belt layer (5) is installed on the inner side of the zero-degree belt layer. The inner wall of the inner zero-degree belt layer (3) has slots (31) on both sides. The opening of the inner zero-degree belt layer (3) is narrow inside and wide outside. The inner zero-degree belt layer (3) and the protective blocks (4) are an integral structure. The belt layer (5) includes a first belt layer (51), a second belt layer (52), and a third belt layer. (53), the first belt layer (51), the second belt layer (52) and the third belt layer (53) are installed in sequence inside the inner zero-degree belt layer (3), wherein the two ends of the third belt layer (53) are attached to the inside of the slot (31). The first belt layer (51), the second belt layer (52) and the third belt layer (53) are all made of rolled steel wire cord fabric. The first belt layer (51), the second belt layer (52) and the third belt layer (53) are attached and fixed in sequence. The width of the first belt layer (51), the second belt layer (52) and the third belt layer (53) increases in sequence. The protective block (4) is located between the outer zero-degree belt layer (2) and the inner zero-degree belt layer (3). The height difference between the two sides of the protective block (4) decreases clockwise.

2. The zero-degree belt structure all-steel radial tire according to claim 1, characterized in that: The outer zero-degree belt layer (2) has a U-shaped cross section, and the inner wall of the outer zero-degree belt layer (2) is fitted with an inner zero-degree belt layer (3), which is made of steel wire rolled cord fabric.

3. The zero-degree belt structure all-steel radial tire according to claim 1, characterized in that: The third belt layer (53) and the inner zero-degree belt layer (3) form an engaging structure, and the inner zero-degree belt layer (3), the first belt layer (51), and the second belt layer (52) form a detachable structure.

4. The zero-degree belt structure all-steel radial tire according to claim 1, characterized in that: The inner lining layer (6) is attached to the third belt layer (53), the outer zero-degree belt layer (2) and the inner zero-degree belt layer (3) on one side, and a groove is provided on the side away from the third belt layer (53), and sound insulation cotton (7) is attached to the inside of the groove.

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