High-wear-resistance polyurethane tire for engineering vehicle

Abstract

The utility model discloses a high wear-resistant polyurethane tire for an engineering vehicle, which relates to the technical field of polyurethane tires and comprises a tire body, the tire body is divided into a tire surface part and a tire side part, a reinforcing plate is arranged on the surface of the tire side part of the tire body, and a rib plate which penetrates through the tire side part of the tire body and extends into the tire body is arranged on the surface of the reinforcing plate. Reinforcing ribs are arranged on the upper side and the lower side of the tire side portion of the tire body, sacrificial layers are evenly arranged between the two reinforcing ribs at intervals, the sacrificial layers, the reinforcing ribs, the reinforcing plates, the rib plates and the tire body are connected into a whole, the sacrificial layers are arranged on the tire side portion of the tire body, and the sacrificial layers cannot directly make contact with external objects in the conventional use state. When an engineering vehicle runs in a special field, if foreign matter contact occurs, the sacrificial layer can prevent the foreign matter from directly making contact with the tire body, friction is relieved in the blocking process in the modes of bending, extending and the like, and if the contact is sudden, the sacrificial layer can be broken in the friction process, so that the tire body is protected.

Description

TECHNICAL FIELD

[0001] The utility model relates to polyurethane tire technical field especially relates to a high wear -resisting polyurethane tire for engineering vehicle. BACKGROUND

[0002] Engineering vehicle generally refers to the vehicle with specific use scene, generally will use in all kinds of construction site or specific purpose, one of the biggest consumables when engineering vehicle is used is tire, because the special use scene, the wear and tear of tire is big.

[0003] The existing wear -resisting tire is realized through increasing thickness or designing specific lines on the surface of tire, can guarantee that the wear and tear of the part of the tread of engineering vehicle is reduced during moving to prolong the service life of tire, but the tire side is also worn in the actual use process, and the thickness of the tire side part is thinner compared with the tread part, unlike the tread part, the wear and tear of the tire side part is more concentrated caused by environmental factors during the movement of engineering vehicle, and the concentrated wear and tear can greatly affect the service life of tire and exist greater safety hazard. SUMMARY

[0004] In view of the above problems, the utility model aims at providing a high wear -resisting polyurethane tire for engineering vehicle, solve the problem that the tire side part is irregularly worn in the use process due to external factors.

[0005] The technical scheme of the utility model is as follows: a high wear -resisting polyurethane tire for engineering vehicle, including the tire body, the tire body is divided into the tread part and the tire side part, the tire side part of the tire body is provided with the reinforcing plate, the reinforcing plate is provided with the rib plate extending to the inside through the tire side part of the tire body, the tire side part of the tire body is provided with the reinforcing rib on the upper and lower sides, the two reinforcing ribs are evenly spaced and arranged with the sacrificial layer, and the sacrificial layer is connected with the reinforcing rib, the reinforcing plate, the rib plate and the tire body as a whole.

[0006] Further, the reinforcing plate is formed by the plate-shaped structure of the fabric made of nylon fiber and the polyurethane composite, which ensures the stable connection effect between the reinforcing plate and the tire body, increases the strength and wear resistance of the reinforcing plate itself, and the like.

[0007] Further, the rib plate is evenly spaced and distributed by a plurality of triangular plates along the inner wall of the tire body, the vertical surface of the rib plate is connected with the reinforcing plate through the tire body, the rib plate is made of high-hardness thermoplastic polyurethane, which can support the tire body from excessive deformation when the reinforcing plate is rubbed and extruded, and the material of the rib plate can be better connected with the tire body.

[0008] Further, the sacrificial layer is made of a thermoplastic polyurethane with a high hardness, the connection side of the sacrificial layer to the tire body gradually reduces in thickness from one side to the other side, and the end of the sacrificial layer is flush with the reinforcing rib and is wavy.

[0009] Further, the reinforcing rib is a solid strip structure with the same material as the tire body, the cross section of the reinforcing rib on the upper side is circular, and the cross section of the reinforcing rib on the lower side is drop-shaped.

[0010] Further, the reinforcing plate is embedded in the sidewall part of the tire body and is flush with the surface of the tire body.

[0011] Further, the two reinforcing ribs are protruded in the horizontal direction of the sidewall part of the tire body, a recessed area is formed between the two reinforcing ribs, and the side of the two reinforcing ribs close to the recessed area is smoothly transitioned, so that the transition between the reinforcing rib and the tire body is smooth, and accumulation of sand and stones between the two reinforcing ribs is avoided to cause additional wear.

[0012] The beneficial effects of the utility model are as follows:

[0013] 1. The utility model discloses a sacrificial layer arranged in the sidewall part of the tire body, which will not directly contact with external objects in the normal use state, and when the engineering vehicle runs in a special place, if foreign matter contacts, the sacrificial layer can block the direct contact of the foreign matter with the tire body, and in the blocking process, the sacrificial layer can relieve the friction through bending and extension, and if the contact is sudden, the sacrificial layer can be broken in the friction process, so as to protect the tire body.

[0014] 2. The utility model discloses a reinforcing plate arranged in the sidewall part of the tire body, which can strengthen the stability of the sacrificial layer and improve the wear resistance through supporting the sacrificial layer, and when foreign matter contacts, the reinforcing layer can also serve as a buffer to prevent the foreign matter from damaging the tire, and the rib plate connected with the reinforcing layer can form effective support in the tire body to avoid the increase of the friction effect caused by the deformation of the tire body in the friction process with the foreign matter. BRIEF DESCRIPTION OF DRAWINGS

[0015] Figure 1 It is a whole structure schematic view of the utility model;

[0016] Figure 2 It is a sacrificial layer structure schematic view of the utility model;

[0017] Figure 3 It is a tire body internal structure schematic view of the utility model;

[0018] Figure 4 It is a rib plate structure schematic view of the utility model.

[0019] The drawings show that: 1, tire body; 2, reinforcing plate; 3, rib plate; 4, reinforcing rib; 5, sacrificial layer. DETAILED DESCRIPTION

[0020] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0021] like Figures 1-4 As shown, a high wear-resistant polyurethane tire for engineering vehicles includes a tire carcass 1, which is divided into a tread portion and a sidewall portion. A reinforcing plate 2 is provided on the surface of the sidewall portion of the tire carcass 1. The reinforcing plate 2 is a plate-like structure formed by a nylon fiber fabric and polyurethane composite, which ensures a stable connection between the reinforcing plate 2 and the tire carcass 1 while increasing the strength and wear resistance of the reinforcing plate 2 itself. Ribs 3 are provided on the surface of the reinforcing plate 2, which extend through the sidewall portion of the tire carcass 1 and into the interior. The ribs 3 are composed of several triangular plates evenly spaced along the inner wall of the tire carcass 1. The vertical surface of the ribs 3 passes through the tire carcass 1 and connects with the reinforcing plate 2. The ribs 3 are made of high-hardness thermoplastic polyurethane, which ensures that the ribs 3 can support the tire carcass 1 without excessive deformation when the reinforcing plate 2 is subjected to friction and compression. At the same time, the material of the ribs 3 can better connect with the tire carcass 1. The reinforcing plate 2 is embedded in the sidewall portion of the tire carcass 1 and is flush with the surface of the tire carcass 1.

[0022] The tire body 1 has reinforcing ribs 4 on both the upper and lower sides of the sidewall. The reinforcing ribs 4 are solid strip structures made of the same material as the tire body 1. The cross-section of the upper reinforcing rib 4 is circular, and the cross-section of the lower reinforcing rib 4 is teardrop-shaped. The two reinforcing ribs 4 protrude horizontally on the sidewall of the tire body 1, forming a recessed area between the two reinforcing ribs 4. The side of the two reinforcing ribs 4 closest to the recessed area has a smooth transition, making the transition between the reinforcing ribs 4 and the tire body 1 smooth and avoiding the accumulation of sand and gravel between the two reinforcing ribs 4, which would cause additional wear.

[0023] Sacrificial layers 5 are evenly spaced between the two reinforcing ribs 4. The sacrificial layers 5 are made of low-hardness thermoplastic polyurethane. The thickness of the sacrificial layers 5 gradually decreases from the side connected to the carcass 1 to the other side. The end of the sacrificial layers 5 is flush with the reinforcing ribs 4 and has a wavy shape. The sacrificial layers 5, the reinforcing ribs 4, the reinforcing plate 2, the rib plate 3 and the carcass 1 are connected as a whole by vulcanization.

[0024] The utility model discloses a working principle: first in the engineering vehicle normal driving process only the tire body 1 tread part is contacted with the ground, the friction that occurs at this moment is the friction that can accept conventionally, if the foreign matter friction contact side part occurs when the engineering vehicle is in special site driving, the foreign matter will first contact with the sacrificial layer 5, the sacrificial layer 5 twists and deforms even breaks in the friction contact process with the foreign matter, thereby avoiding the foreign matter direct friction tire body 1, and tire body 1 is extruded when contacting with the foreign matter, and the extrusion force first acts in the reinforcing plate 2, and the reinforcing plate 2 pushes the rib plate 3 when transmitting the extrusion force, and the rib plate 3 effectively supports in tire body 1, avoids the extrusion deformation of tire body 1 and leads to the increase of friction.

[0025] The above is only the preferred specific implementation of the utility model, but the protection scope of the utility model is not limited to this, any skilled person in the art in the technical range disclosed by the utility model, according to the technical scheme and the utility model concept of the utility model, equivalent replacement or change are covered in the protection scope of the utility model.

Claims

1. A high wear resistant polyurethane tire for an engineering vehicle comprising a carcass (1) characterized by: The tire body (1) is divided into a tread portion and a sidewall portion, the sidewall portion of the tire body (1) is provided with a reinforcing plate (2), the reinforcing plate (2) is provided with a rib plate (3) extending to the inside through the sidewall portion of the tire body (1), the sidewall portion of the tire body (1) is provided with a reinforcing rib (4) on the upper and lower sides, and the two reinforcing ribs (4) are uniformly and spacedly provided with a sacrificial layer (5), and the sacrificial layer (5) is connected with the reinforcing rib (4), the reinforcing plate (2), the rib plate (3) and the tire body (1) as a whole.

2. The high abrasion resistant polyurethane tire for an engineering vehicle of claim 1, wherein: The reinforcing plate (2) is a plate-shaped structure formed by combining a fabric made of nylon fiber with polyurethane.

3. The high abrasion resistant polyurethane tire for an engineering vehicle of claim 1, wherein: The rib plate (3) is uniformly and spacedly distributed by a plurality of triangular plates along the inner wall of the tire body (1), the vertical surface of the rib plate (3) is connected with the reinforcing plate (2) through the tire body (1), and the rib plate (3) is made of high-hardness thermoplastic polyurethane.

4. The high abrasion resistant polyurethane tire for an engineering vehicle of claim 1, wherein: The sacrificial layer (5) is made of low-hardness thermoplastic polyurethane, the connecting side of the sacrificial layer (5) to the tire body (1) gradually reduces in thickness to the other side, the end of the sacrificial layer (5) is flush with the reinforcing rib (4) and is in a wavy shape.

5. The high abrasion resistant polyurethane tire for an engineering vehicle of claim 1, wherein: The reinforcing rib (4) is a solid strip-shaped structure and is made of the same material as the tire body (1), the cross section of the reinforcing rib (4) on the upper side is circular, and the cross section of the reinforcing rib (4) on the lower side is in the shape of a water droplet.

6. The high abrasion resistant polyurethane tire for an engineering vehicle of claim 2, wherein: The reinforcing plate (2) is embedded in the sidewall portion of the tire body (1) and is flush with the surface of the tire body (1).

7. The high abrasion resistant polyurethane tire for an engineering vehicle of claim 5, wherein: The two reinforcing ribs (4) are protruded in the horizontal direction of the sidewall portion of the tire body (1), a recessed area is formed between the two reinforcing ribs (4), and the side of the two reinforcing ribs (4) close to the recessed area is smoothly transitioned.

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