An adaptive anti-slip and drainage tire and a motion robot

Abstract

This application discloses an adaptive anti-skid and drainage function tire and a motion robot, including a tire carcass with a dual hardness partition structure formed by an outer hard area and an inner soft area. The central area of ​​the tire carcass is provided with multiple TPU elastic pieces. The surface of the tire carcass is provided with several drainage grooves, and the bottom of the drainage grooves is covered with a TPU film. The TPU film is fixedly connected to the sidewall of the drainage groove with its two long sides, and its central area is suspended at the bottom of the drainage groove. Under the action of external centrifugal force, it can be curled and deformed into the drainage groove with its fixed side as the axis, reducing the effective depth of the drainage groove and solving the technical problem that a single tire material cannot simultaneously achieve wear resistance and anti-skid properties.

Description

Technical Field

[0001] This application relates to an adaptive anti-skid and drainage function tire and a motion robot, belonging to the field of tire manufacturing technology. Background Technology

[0002] Rubber wheels are widely used in various mobile robots and service equipment. However, traditional rubber wheels are prone to slipping on tiled or dusty surfaces, severely affecting stability and positioning accuracy. This problem stems from the inherent limitations of rubber materials and deficiencies in tread design. Common rubber compounds often struggle to balance wear resistance and slip resistance, resulting in tires that are either too wear-resistant or too slip-resistant. This necessitates frequent replacements or compromises on one performance aspect, failing to achieve sustained grip.

[0003] Different driving conditions place drastically different demands on tire tread design. At high speeds and straightaways, while deep grooves effectively wick away water and enhance drainage, they inevitably lead to high rolling resistance and increased running noise, resulting in reduced energy efficiency and a decreased user experience. Conversely, at low speeds or on wet surfaces, shallow grooves help reduce rolling resistance, but insufficient drainage channels and the tendency for water films to form significantly reduce wet grip, threatening operational safety. Therefore, a single type of tread pattern cannot fully meet the comprehensive needs of multiple driving conditions, exposing the systemic deficiencies of traditional tires in complex application environments.

[0004] In addition, traditional rubber tire materials do not have an active drainage mechanism. Relying on the passive drainage method of the tread grooves, they are prone to failure due to groove blockage in muddy or high-humidity environments, which further limits their applicability and reliability in real-world scenarios. Summary of the Invention

[0005] The purpose of this application is to overcome the shortcomings of the prior art and provide an adaptive anti-skid and drainage function tire and a motion robot to solve the technical problem that rubber tires cannot simultaneously achieve both wear resistance and anti-skid properties.

[0006] To achieve the above objectives, the technical solution adopted in this application is as follows: In a first aspect, this application provides an adaptive anti-skid and drainage function tire, including a tire carcass with a dual hardness partition structure formed by an outer hard zone and an inner soft zone, wherein a plurality of TPU spring sheets are provided in the central area of ​​the tire carcass. The surface of the tire carcass is provided with several drainage grooves, and the bottom of the drainage grooves is covered with a TPU film. The TPU film is fixedly connected to the side wall of the drainage groove with its two long sides, and its central area is suspended from the bottom of the drainage groove. Under the action of external centrifugal force, it can be curled and deformed into the drainage groove with its fixed side as the axis, thereby reducing the effective depth of the drainage groove.

[0007] In conjunction with the first aspect, the drainage channel further includes a plurality of longitudinal drainage channels and transverse drainage channels, the bottom of which is covered with a TPU film.

[0008] Furthermore, the TPU film includes a first transverse groove TPU film and a second transverse groove TPU film disposed in a transverse drainage groove, and a longitudinal groove TPU film disposed in a longitudinal drainage groove.

[0009] Furthermore, the first lateral groove TPU film and the second lateral groove TPU film are located in the center region of the tread and the shoulder region, respectively.

[0010] Furthermore, the first transverse groove TPU film, the second transverse groove TPU film, and the longitudinal groove TPU film have different thicknesses and / or materials.

[0011] Furthermore, the thickness difference between any two of the first transverse groove TPU film, the second transverse groove TPU film, and the longitudinal groove TPU film is not less than 0.2 mm.

[0012] Furthermore, the difference in Shore hardness between any two of the first transverse groove TPU film, the second transverse groove TPU film, and the longitudinal groove TPU film is not less than 10A.

[0013] Furthermore, the Shore hardness of the outer hard region is 70A~90A, and the Shore hardness of the inner soft region is 40A~60A.

[0014] Furthermore, the tire is a robot drive wheel.

[0015] Secondly, this application provides a motion robot equipped with an adaptive anti-slip and drainage tire as described in the first aspect.

[0016] Compared with the prior art, the beneficial effects achieved by this application are as follows: (1) This application solves the technical problem that a single tire material cannot simultaneously achieve wear resistance and anti-skid by setting an outer hard zone and an inner soft zone to form a dual-hardness partitioned tread structure and setting several drainage grooves. (2) TPU springs that can extend outwards from the tread under centrifugal force are radially set in the center area of ​​the tire, automatically piercing the surface dust layer, allowing the tread to directly contact the solid ground, restoring effective friction, and realizing the tire's adaptive anti-skid on dusty, sandy and other slippery surfaces. (3) By laying a TPU film at the bottom of the drainage ditch with its long sides fixed and the middle suspended, the TPU film is rolled into the ditch under the action of centrifugal force, thus realizing the dynamic adaptive adjustment of the drainage ditch; when the tire is at low speed, the groove is kept deep to enhance drainage and wet grip, and when the tire is at high speed, the groove is changed to a shallow groove to reduce rolling resistance and running noise, so that a single stripe can meet the needs of multiple working conditions at the same time. (4) By configuring the first lateral groove, the second lateral groove, and the longitudinal groove with TPU films of different thicknesses or materials, the performance of different areas of the tire can be finely controlled, thereby improving the overall performance and durability of the tire under various complex working conditions. Attached Figure Description

[0017] Figure 1 This is a front structural diagram of an adaptive anti-skid and drainage tire provided in an embodiment of this application; Figure 2 This is a schematic diagram of the side structure of an adaptive anti-skid and drainage tire provided in an embodiment of this application; In the figure: 1. TPU spring sheet, 2. First transverse groove TPU film, 3. Second transverse groove TPU film, 4. Longitudinal groove TPU film, 5. Outer hard area, 6. Inner soft area, 7. Longitudinal drainage groove, 8. Transverse drainage groove. Detailed Implementation

[0018] The present application will be further described below with reference to the accompanying drawings. The following embodiments are only used to more clearly illustrate the technical solution of the present application, and should not be used to limit the scope of protection of the present application.

[0019] Example 1:

[0020] like Figure 1 , Figure 2 The figures shown are front and side views of the adaptive anti-skid and drainage tire provided in this embodiment, including the tire carcass, which is made of two composite materials, including an outer hard area 5 and an inner soft area 6.

[0021] The outer hard zone 5 is made of rubber composite material with a Shore hardness of 70A to 90A, preferably 80A. Its main function is to provide a strong skeleton support to ensure tire wear resistance, low rolling resistance and quick steering response.

[0022] The inner soft zone 6 is made of TPU microporous foam particles with a Shore hardness of 40A~60A, preferably 50A TPU microporous foam particles, which have high hysteresis and easy deformation, and can effectively break the water film, improve the grip of wet and slippery road surfaces and have a silent shock absorption effect.

[0023] The outer hard zone 5 and the inner soft zone 6 together form a dual-hardness zone tread structure, which effectively solves the problems of tires being wear-resistant but not slip-resistant, and slip-resistant but not durable.

[0024] The tire carcass has several TPU spring pieces 1 in its central area; specifically, the central area of ​​the inner soft zone 6 has multiple TPU spring pieces 1 radially embedded therein. These TPU spring pieces 1 are in a pre-compressed state under natural conditions, with a Shore hardness of approximately 60±2A. When the robot travels on dusty or sandy ground, the tire speed increases, and the centrifugal force increases. Under the action of centrifugal force, the TPU spring pieces 1 overcome their pre-compression internal stress, elastically deform outwards from the tread, and extend. Their extended ends can easily pierce the surface dust layer, allowing the tire tread to directly contact the underlying tile or other floor surface, thereby restoring effective friction and preventing slippage.

[0025] The tire tread is designed with complex grooves to enhance drainage and grip. The lowest surface of the grooves is covered with a TPU film. Under different humidity conditions, the groove depth is adjusted by centrifugal force to solve complex conditions such as high rolling resistance at high speeds and insufficient grip at low speeds, as well as low rolling resistance in shallow grooves but poor drainage.

[0026] In this embodiment, the surface of the tire carcass is provided with a plurality of longitudinal drainage grooves 7 and transverse drainage grooves 8. The bottom of the longitudinal drainage grooves 7 and / or the transverse drainage grooves 8 is covered with a TPU film. The TPU film is fixedly connected to the side wall of the drainage groove with its two long sides, and its central area is suspended above the bottom of the drainage groove.

[0027] The working principle of the TPU film is as follows: When the tire rotates, centrifugal force acts on the suspended TPU film. Under low-speed, wet conditions, the centrifugal force is small, and the TPU film deformation is minimal, maintaining the maximum depth of the grooves, prioritizing excellent drainage performance, preventing hydroplaning, and improving wet grip. Under high-speed, dry conditions, the rotational speed increases, and the centrifugal force increases. The first transverse groove TPU film 2, the second transverse groove TPU film 3, and the longitudinal groove TPU film 4 curl and deform inwards into the grooves with their fixed edges as axes. This reduces the effective depth of the drainage grooves, thereby significantly reducing rolling resistance and air turbulence noise, improving the robot's range and operational quietness.

[0028] Example 2:

[0029] The lateral drainage groove 8 includes a first lateral groove 2 located in the center area of ​​the tread and a second lateral groove 3 located in the shoulder area.

[0030] The bottom of the drainage channel in this application is provided with the following adaptive structure: At the bottom of the first transverse groove, a first transverse groove TPU film 2 with a thickness of approximately 0.5 mm is laid. At the bottom of the second transverse groove, a second transverse groove TPU film 3 with a thickness of approximately 0.8 mm is laid. At the bottom of the longitudinal drainage groove 7, a longitudinal grooved TPU film 4 is laid, which is about 0.3mm thick and is made of TPU that is softer than the transverse film, with a Shore hardness of about 55A.

[0031] In this embodiment, the longitudinal groove TPU film 4, the first transverse groove TPU film 2, and the second transverse groove TPU film 3 have different thicknesses and / or materials; the thickness difference between any two of the first transverse groove TPU film 2, the second transverse groove TPU film 3, and the longitudinal groove TPU film 4 is not less than 0.2 mm; and the Shore hardness difference between any two of the first transverse groove TPU film 2, the second transverse groove TPU film 3, and the longitudinal groove TPU film 4 is not less than 10 A.

[0032] Specifically, the second lateral groove TPU film 3, located in the shoulder area, has the greatest thickness, followed by the first lateral groove TPU film 2, located in the center of the tread, and the longitudinal groove TPU film 4 has the smallest thickness; and / or, the elastic modulus of the longitudinal groove TPU film 4 is lower than that of the first lateral groove TPU film 2 and the second lateral groove TPU film 3. Through differentiated design, the second lateral groove TPU film 3 is the thickest, and the longitudinal groove TPU film 4 is the thinnest and softest, optimizing the performance of grooves at different locations. The film in the shoulder area is thicker and more durable, while the film in the center longitudinal area is more easily deformable to achieve low rolling resistance at high speeds.

[0033] Example 3:

[0034] This embodiment provides a motion robot whose drive wheels use tires with adaptive anti-slip and drainage functions as described in Embodiment 1 or Embodiment 2 above.

[0035] In the description of the application, it should be noted that if terms such as "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer" appear, the orientation or positional relationship indicated by them is based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this embodiment and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this embodiment.

[0036] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined with "first" or "second" may explicitly or implicitly include one or more of that feature.

[0037] The above description is only a preferred embodiment of this application. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the technical principles of this application, and these improvements and modifications should also be considered within the scope of protection of this application.

Claims

1. A self-adapting anti-slip and draining function tire, characterized in that, The tire carcass includes a dual-hardness partition structure formed by an outer hard zone (5) and an inner soft zone (6), and the central area of ​​the tire carcass is provided with multiple TPU spring sheets (1). The surface of the tire carcass is provided with several drainage grooves, and the bottom of the drainage grooves is covered with a TPU film. The TPU film is fixedly connected to the side wall of the drainage groove with its two long sides, and its central area is suspended from the bottom of the drainage groove. Under the action of external centrifugal force, it can be curled and deformed into the drainage groove with its fixed side as the axis, thereby reducing the effective depth of the drainage groove.

2. Tyre according to Claim 1, characterized in that, The drainage channel includes several longitudinal drainage channels (7) and transverse drainage channels (8), and the bottom of the longitudinal drainage channels (7) and / or transverse drainage channels (8) is covered with a TPU film.

3. Tyre according to Claim 2, characterized in that, The TPU film includes a first transverse groove TPU film (2) and a second transverse groove TPU film (3) disposed in the transverse drainage groove (8), and a longitudinal groove TPU film (4) disposed in the longitudinal drainage groove (7).

4. Tyre according to Claim 3, characterized in that, The first transverse groove TPU film (2) and the second transverse groove TPU film (3) are located in the center area of ​​the tread and the shoulder area, respectively.

5. Tyre according to Claim 3 or 4, characterised in that, The thickness and / or material of the first transverse groove TPU film (2), the second transverse groove TPU film (3), and the longitudinal groove TPU film (4) are different.

6. Tyre according to Claim 3 or 4, characterized in that, The thickness difference between any two of the first transverse groove TPU film (2), the second transverse groove TPU film (3), and the longitudinal groove TPU film (4) is not less than 0.2 mm.

7. Tyre according to Claim 3 or 4, characterised in that, The difference in Shore hardness between any two of the first transverse groove TPU film (2), the second transverse groove TPU film (3), and the longitudinal groove TPU film (4) is not less than 10A.

8. The tire of claim 1, wherein, The Shore hardness of the outer hard zone (5) is 70A~90A, and the Shore hardness of the inner soft zone (6) is 40A~60A.

9. The tire of claim 1, wherein, The tires are robot drive wheels.

10. A locomotion robot characterized by comprising: It is equipped with at least one tire as described in any one of claims 1-9.

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