CN215793015U

CN215793015U - Tyre for vehicle wheels

Info

Publication number: CN215793015U
Application number: CN202122053133.3U
Authority: CN
Inventors: 金帅; 褚红星; 程莉
Original assignee: Sailun Jinyu Group Co Ltd
Current assignee: Sailun Jinyu Group Co Ltd
Priority date: 2021-08-27
Filing date: 2021-08-27
Publication date: 2022-02-11
Anticipated expiration: 2031-08-27

Abstract

The present invention provides a tire comprising: a carcass; the tire shoulder profile surface is arranged on the tire body and is arc-shaped; the tire sidewall profile surface is arranged on the tire body and comprises a first profile section and a second profile section which are connected with each other, the first end of the first profile section is connected and tangent with the tire shoulder profile surface, and the second end of the first profile section is connected and tangent with the second profile section; wherein the second profile section is an arc-shaped surface. The utility model solves the problem of short service life of the tire in the prior art.

Description

Tyre for vehicle wheels

Technical Field

The utility model relates to the technical field of tires, in particular to a tire.

Background

At present, tires used in engineering machinery, particularly large-scale underground mining tires, are extremely easy to damage tire bodies due to the severe operating environment, large-scale ores in loading and unloading areas form great threats to tire table tops and tire side walls, and in addition, the tires are extremely easy to pierce through the tire side walls when vehicles turn due to narrow roadways to cause the damage of materials inside the tire bodies.

In the prior art, most of the reinforcing platforms are additionally arranged on two sides of a tire to increase the thickness of a tire side, as shown in fig. 1, the reinforcing platforms are positioned between two points b and c, and the distance between the point b and the intersection point a of the arc length of the tire surface and the tangent line of the tire shoulder is L. Wherein the length of L is about 20-30% of the height of the section, and the point c is above the horizontal axis.

However, when the tire runs, the stress of each part in the tire is not uniform, and the part with larger stress is still easily damaged, so that the service life of the tire is reduced.

SUMMERY OF THE UTILITY MODEL

The utility model mainly aims to provide a tire to solve the problem of short service life of the prior art.

In order to achieve the above object, the present invention provides a tire comprising: a carcass; the tire shoulder profile surface is arranged on the tire body and is arc-shaped; the tire sidewall profile surface is arranged on the tire body and comprises a first profile section and a second profile section which are connected with each other, the first end of the first profile section is connected and tangent with the tire shoulder profile surface, and the second end of the first profile section is connected and tangent with the second profile section; wherein the second profile section is an arc-shaped surface.

Further, the tire body is annular, the vertical distance between the maximum circumferential surface and the minimum circumferential surface of the tire body is H, a reference plane is arranged between the maximum circumferential surface and the minimum circumferential surface, the reference plane is parallel to the axis of the tire body, the maximum vertical distance between the reference plane and the minimum circumferential surface is H1, the maximum vertical distance between the reference plane and the maximum circumferential surface is H2, and the range of H1/H2 is 0.55-0.65; the second profile section has a fixed end connected to the first profile section and a free end remote from the fixed end, the free end extending in a direction towards the reference plane until it lies in the reference plane.

Further, the side wall profile further comprises: and the third profile section is connected with the second profile section and is a circular arc surface.

Further, the second profile section is an arc surface, the circle center of the arc surface where the second profile section is located on the inner side of the tire body, and the circle center of the arc surface where the third profile section is located on the outer side of the tire body.

Further, the side wall profile further comprises: and the fourth profile section is arranged at one end, far away from the second profile section, of the third profile section, the first end of the third profile section is tangent to the second profile section, and the second end of the third profile section is connected with and tangent to the fourth profile section.

Further, the side wall profile further comprises: and the fifth profile section is arranged at one end of the fourth profile section, which is far away from the third profile section, and the fifth profile section is connected and tangent with the fourth profile section.

Further, the tire further comprises: the tire bead profile surface is arranged at one end, far away from the fourth profile section, of the fifth profile section, at least part of the tire bead profile surface is arc-shaped, and the fifth profile section is tangent to the tire bead profile surface.

Further, the tire bead profile surface comprises a transition connecting section, and the profile surface where the fifth profile section is located is tangent to the profile surface where the transition connecting section is located.

Furthermore, the transition connecting section and the fifth profile section are both arc surfaces; the circle center of the circumferential surface of the transition connecting section is positioned on the outer side of the tire body, and the circle center of the circumferential surface of the fifth profile section is positioned on the inner side of the tire body.

Further, the fourth profile section is a circular arc surface; and/or the fifth contour section is a circular arc surface.

By applying the technical scheme of the utility model, the tire comprises a tire body, a tire shoulder profile surface and a tire side profile surface, wherein the tire shoulder profile surface and the tire side profile surface are both arranged on the tire body, the tire shoulder profile surface is arc-shaped, the tire side profile surface comprises a first profile section and a second profile section which are mutually connected, the first end of the first profile section is connected and tangent with the tire shoulder profile surface, and the second end of the first profile section is connected and tangent with the second profile section; wherein the second profile section is an arc-shaped surface. The tire sidewall profile surface is arranged to extend outwards towards the middle part far away from the tire body, and is smoothly connected with the tire shoulder profile surface through the first profile section, so that the streamline sidewall profile surface is enhanced, the problem that the inner material of the tire is easily scratched is avoided, the service life of the tire is effectively prolonged, and the loss of a user caused by tire replacement and shutdown is reduced.

Drawings

The accompanying drawings, which are incorporated in and constitute a part of this application, illustrate embodiments of the utility model and, together with the description, serve to explain the utility model and not to limit the utility model. In the drawings:

FIG. 1 shows a schematic structural view of a prior art tire;

FIG. 2 shows a schematic structural view of an embodiment of a tire according to the present invention; and

fig. 3 shows a schematic view of the structure of an extrusion die template of a tire according to the present invention.

Wherein the figures include the following reference numerals:

1. a carcass; 2. a tire shoulder profile surface; 3. a sidewall profile; 31. a first profile segment; 32. a second contour segment; 33. a third profile section; 34. a fourth profile section; 35. a fifth profile segment; 4. a bead profile surface; 40. a transition connection section; 5. a crown contour surface; 6. extruding a mouth shape sample plate; 60. a plate body.

Detailed Description

It should be noted that the embodiments and features of the embodiments in the present application may be combined with each other without conflict. The present invention will be described in detail below with reference to the embodiments with reference to the attached drawings.

It is noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of example embodiments according to the present application. As used herein, the singular forms "a", "an" and "the" are intended to include the plural forms as well, and it should be understood that when the terms "comprises" and/or "comprising" are used in this specification, they specify the presence of stated features, steps, operations, devices, components, and/or combinations thereof, unless the context clearly indicates otherwise.

The present invention provides a tire, please refer to fig. 2 and 3, comprising: a carcass 1; the tire shoulder profile surface 2 is arranged on the tire body 1, and the tire shoulder profile surface 2 is arc-shaped; the tire sidewall profile 3 is arranged on the tire body 1, the tire sidewall profile 3 comprises a first profile section 31 and a second profile section 32 which are connected with each other, the first end of the first profile section 31 is connected and tangent with the tire shoulder profile 2, and the second end of the first profile section 31 is connected and tangent with the second profile section 32; wherein the second profile section 32 is an arc-shaped surface.

The tire provided by the utility model comprises a tire body 1, a tire shoulder profile surface 2 and a tire side profile surface 3, wherein the tire shoulder profile surface 2 and the tire side profile surface 3 are both arranged on the tire body 1, the tire shoulder profile surface 2 is arc-shaped, the tire side profile surface 3 comprises a first profile section 31 and a second profile section 32 which are connected with each other, the first end of the first profile section 31 is connected and tangent with the tire shoulder profile surface 2, and the second end of the first profile section 31 is connected and tangent with the second profile section 32; wherein the second profile section 32 is an arc-shaped surface. Set up like this and make side wall profile 3 outwards expand towards the middle part of keeping away from matrix 1 to through first profile section 31 and shoulder profile 2 smooth connection, reinforcing streamline type side wall profile has avoided the problem that the interior material of tire is easily scratched, has effectively promoted the life of tire, has reduced the loss that the user caused because of trading child and shut down.

In the specific design process, the inner contour surface of the tire is obtained through computer assistance, the stress condition of each part of the inner cavity of the tire is obtained, then the outer contour surface of the tire and the material distribution of each part are determined from the inside to the outside of the tire, the early-starting damage of the tire is reduced, the service life and the service performance of the tire are improved, in addition, the streamline thickened tire side is designed according to the calculation result, the cutting resistance of the tire side is improved, the width of the tire section can be controlled within a standard range, and the vehicle design does not need to be adjusted. It should be noted that the inner contour surface of the tire is a contour surface facing at least a portion of the rim, the outer contour surface of the tire is a contour surface exposed to the external environment, and the cross section of the tire is a cross section along the radial direction of the tire.

In the embodiment provided by the utility model, the tire body 1 is annular, the vertical distance between the maximum circumferential surface and the minimum circumferential surface of the tire body 1 is H, a reference plane is arranged between the maximum circumferential surface and the minimum circumferential surface, the reference plane is parallel to the axis of the tire body 1, the maximum vertical distance between the reference plane and the minimum circumferential surface is H1, the maximum vertical distance between the reference plane and the maximum circumferential surface is H2, and the range of H1/H2 is 0.55-0.65; the second profile section 32 has a fixed end connected to the first profile section 31 and a free end remote from the fixed end, which extends in a direction close to the reference plane until it lies in the reference plane. The arrangement can increase the sidewall area of the tire, limit the extension length of the second profile section 32 and ensure that the sidewall area can bear larger stress. Specifically, the second contour segment 32 is an arc surface, the center of the arc surface where the second contour segment 32 is located is R1, and the first contour segment 31 is tangent to the second contour segment 32 and is at the point d. The reference plane is a plane assumed for accurately defining the second contour segment 32, and since the maximum circumferential surface and the minimum circumferential surface are circumferential surfaces, and the reference plane is a horizontal plane, the reference plane is parallel to the axis of the carcass 1, the vertical distance from the reference plane to the maximum circumferential surface and the minimum circumferential surface is not uniform, and has the maximum vertical distance and the minimum vertical distance. The reference plane is determined by the ratio range of H1 and H2 to define the extension distance of the second profile segment 32 to ensure the bearing strength of the sidewall area.

Specifically, as shown in fig. 2, the sidewall profile 3 further includes: third profile section 33, third profile section 33 is connected with second profile section 32, and third profile section 33 is the cambered surface. By providing the third profile section 33, the third profile section 33 is extended toward the middle of the carcass 1, so as to increase the stress bearing capacity at the connection of the third profile section 33 and the second profile section 32.

Preferably, the second profile section 32 is an arc surface, the center of the arc surface where the second profile section 32 is located on the inner side of the tire casing 1, and the center of the arc surface where the third profile section 33 is located on the outer side of the tire casing 1. Thus, the side contour surface 3 is prevented from being excessively protruded, and the width of the tire section is prevented from being increased.

Further, the side contour surface 3 further includes: and a fourth profile section 34 arranged at one end of the third profile section 33 far away from the second profile section 32, wherein a first end of the third profile section 33 is tangent to the second profile section 32, and a second end of the third profile section 33 is connected and tangent to the fourth profile section 34. By the third profile section 33 being tangent to the second profile section 32 and the fourth profile section 34, respectively, the streamlined design of the sidewall profile 3 is increased to avoid stress concentrations. Preferably, the radius of the arc surface where the third profile segment 33 is located is R2. The radius of the arc surface where the fourth profile section 34 is located is R3.

In the specific implementation process, the sidewall profile 3 further includes: and a fifth profile section 35 arranged at an end of the fourth profile section 34 away from the third profile section 33, wherein the fifth profile section 35 is connected and tangent to the fourth profile section 34. Tangent with fourth profile section 34 through setting up fifth profile section 35, the extension orbit to fifth profile section 35 has been injectd to optimize side wall profile 3, with the whole thickening of side wall profile 3, in order to avoid the easy damage of side wall department. Preferably, the fifth profile segment 35 is a circular arc surface, and the radius of the circumferential surface of the fifth profile segment 35 is R4.

In particular implementation, the tyre further comprises: a bead profile surface 4, the bead profile surface 4 being arranged at an end of the fifth profile section 35 remote from the fourth profile section 34, at least a portion of the bead profile surface 4 being arc-shaped, the fifth profile section 35 being tangential to the bead profile surface 4. By arranging the fifth profile section 35 to be tangent to the bead profile surface 4, the sidewall profile surface 3 and the bead profile surface 4 are in smooth transition connection, and stress concentration is avoided.

The bead profile surface 4 comprises a transition segment 40, the fifth profile segment 35 lying in a profile surface tangential to the transition segment 40.

The transition connecting section 40 and the fifth contour section 35 are both arc surfaces; the circle center of the circumferential surface of the transition connecting section 40 is positioned at the outer side of the tire body 1, and the circle center of the circumferential surface of the fifth contour section 35 is positioned at the inner side of the tire body 1. Set up like this and make transitional coupling section 40 inseparabler with the rim laminating, simultaneously wholly with side wall profile face 3 towards keeping away from the middle part direction protrusion of matrix 1, increased the regional thickness of side wall, make each position atress of matrix even, improved the regional resistant cutting ability of side wall.

Specifically, the tire further comprises a crown profile surface 5, at least part of the crown profile surface 5 is in contact with a driving surface, and one end of the shoulder profile surface 2, which is far away from the sidewall profile surface 3, is connected with the crown profile surface 5.

The fourth profile section 34 is a circular arc surface; and/or the fifth profile section 35 is a circular arc surface. Preferably, the radius of the circumferential surface of the transition segment 40 is R5, and at least a portion of the transition segment 40 conforms to the rim. The fifth contour segment 35 is located on a circumferential surface with a radius R4.

In the practical application, as shown in fig. 3, since the sidewall profile 3 is redesigned, in the process of producing the tire, the die templates 6 on both sides of the blank need to be modified to increase the thickness of the plate body 60. The plate body 60 has uneven thickness, the maximum thickness is t4, and the minimum thickness is t 3.

From the above description, it can be seen that the above-described embodiments of the present invention achieve the following technical effects:

It should be noted that the terms "first," "second," and the like in the description and claims of this application and in the drawings described above are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order. It is to be understood that the data so used is interchangeable under appropriate circumstances such that the embodiments of the application described herein are, for example, capable of operation in sequences other than those illustrated or otherwise described herein. Furthermore, the terms "comprises," "comprising," and "having," and any variations thereof, are intended to cover a non-exclusive inclusion, such that a process, method, system, article, or apparatus that comprises a list of steps or elements is not necessarily limited to those steps or elements expressly listed, but may include other steps or elements not expressly listed or inherent to such process, method, article, or apparatus.

Spatially relative terms, such as "above … …," "above … …," "above … …," "above," and the like, may be used herein for ease of description to describe one device or feature's spatial relationship to another device or feature as illustrated in the figures. It will be understood that the spatially relative terms are intended to encompass different orientations of the device in use or operation in addition to the orientation depicted in the figures. For example, if a device in the figures is turned over, devices described as "above" or "on" other devices or configurations would then be oriented "below" or "under" the other devices or configurations. Thus, the exemplary term "above … …" can include both an orientation of "above … …" and "below … …". The device may be otherwise variously oriented (rotated 90 degrees or at other orientations) and the spatially relative descriptors used herein interpreted accordingly.

The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A tire, comprising:

a carcass (1);

the tire shoulder profile surface (2) is arranged on the tire body (1), and the tire shoulder profile surface (2) is arc-shaped;

the tire sidewall profile surface (3) is arranged on the tire body (1), the tire sidewall profile surface (3) comprises a first profile section (31) and a second profile section (32) which are connected with each other, a first end of the first profile section (31) is connected with and tangent to the tire shoulder profile surface (2), and a second end of the first profile section (31) is connected with and tangent to the second profile section (32);

wherein the second profile section (32) is an arc-shaped surface.

2. The tyre according to claim 1, wherein the carcass (1) is toroidal, the vertical distance between the maximum circumferential surface and the minimum circumferential surface of the carcass (1) being H, a reference plane being provided between the maximum circumferential surface and the minimum circumferential surface, the reference plane being parallel to the axis of the carcass (1), the maximum vertical distance of the reference plane from the minimum circumferential surface being H1, the maximum vertical distance of the reference plane from the maximum circumferential surface being H2, the range of H1/H2 being 0.55 to 0.65;

the second profile section (32) has a fixed end connected to the first profile section (31) and a free end remote from the fixed end, which extends in a direction close to the reference plane until it lies in the reference plane.

3. Tyre according to claim 1, characterized in that said side profile (3) further comprises:

a third profile section (33), wherein the third profile section (33) is connected with the second profile section (32), and the third profile section (33) is a circular arc surface.

4. A tyre as claimed in claim 3, wherein said second profile section (32) is a circular arc, the centre of the circular arc of said second profile section (32) being located on the inside of said carcass (1), and the centre of the circular arc of said third profile section (33) being located on the outside of said carcass (1).

5. A tyre as claimed in claim 3, wherein said side profile (3) further comprises:

a fourth profile section (34) arranged at an end of the third profile section (33) remote from the second profile section (32), a first end of the third profile section (33) being tangent to the second profile section (32), and a second end of the third profile section (33) being connected and tangent to the fourth profile section (34).

6. Tyre according to claim 5, characterized in that said side profile (3) further comprises:

the fifth profile section (35) is arranged at one end, far away from the third profile section (33), of the fourth profile section (34), and the fifth profile section (35) is connected with and tangent to the fourth profile section (34).

7. The tire of claim 6, further comprising:

a bead contour surface (4), said bead contour surface (4) being disposed at an end of said fifth contour segment (35) distal from said fourth contour segment (34), at least a portion of said bead contour surface (4) being arcuate, said fifth contour segment (35) being tangential to said bead contour surface (4).

8. Tyre according to claim 7, characterized in that said bead profile (4) comprises a transition segment (40), said fifth profile segment (35) lying in a profile tangent to the profile of said transition segment (40).

9. Tyre according to claim 8, characterized in that said transition connection section (40) and said fifth profile section (35) are both circular arc surfaces;

the circle center of the circumferential surface of the transition connecting section (40) is positioned on the outer side of the tire body (1), and the circle center of the circumferential surface of the fifth profile section (35) is positioned on the inner side of the tire body (1).

10. The tire according to claim 6,

the fourth profile section (34) is a circular arc surface; and/or the presence of a gas in the gas,

the fifth contour section (35) is a circular arc surface.