CN214189191U

CN214189191U - Crown structure capable of prolonging wear life of tread of radial aircraft tire

Info

Publication number: CN214189191U
Application number: CN202022886574.7U
Authority: CN
Inventors: 秦齐富; 蒋炳炎; 王继泽
Original assignee: Chemchina Shuguang Rubber Industry Research and Design Institute Co Ltd
Current assignee: Chemchina Shuguang Rubber Industry Research and Design Institute Co Ltd
Priority date: 2020-12-04
Filing date: 2020-12-04
Publication date: 2021-09-14
Anticipated expiration: 2030-12-04

Abstract

The utility model discloses a can improve crown structure in meridian aircraft tire tread wearing and tearing life-span, relate to aircraft tire technical field, including crown body and two last side walls, the side wall is fixed in the both sides of crown body respectively on two, the crown body includes the tread, be equipped with a plurality of anti-skidding decorative patterns on the tread, the crown body is equipped with the ground connection end edge with the junction of last side wall, first shoulder arc portion and second shoulder arc portion, the first end of first shoulder arc portion and second shoulder arc portion is fixed in the both sides of ground connection end edge respectively, the second end of first shoulder arc portion and second shoulder arc portion is fixed in the tread respectively and goes up the one end of side wall, be equipped with side wall arc portion on the last side wall, be equipped with a plurality of slots between side wall arc portion and the second shoulder arc portion. The utility model discloses set up a plurality of slots on last side wall, can effectively reduce tire shoulder earth pressure and side direction slippage.

Description

Crown structure capable of prolonging wear life of tread of radial aircraft tire

Technical Field

The utility model relates to an aircraft tire technical field especially relates to a can improve crown structure in meridian aircraft tire tread wearing and tearing life-span.

Background

The tread wear life is a key index for evaluating the performance of the radial aircraft tire, and has very important influence on the quality of tire products and market competitiveness. Because the atmospheric pressure of radial aircraft tire, load are very high, and the tire sinkage is great when bearing, lead to tire shoulder ground pressure and lateral slip volume to be on the high side, the shoulder has often appeared in the use shoulder and has worn out to change the standard, and the condition of still keeping thicker tread rubber in crown body middle part has showing and has reduced the tire and has fallen the number of times.

Therefore, a new tire crown body structure is urgently needed in the market for solving the problems.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a can improve crown structure in meridian aircraft tire tread wearing and tearing life-span for solve the technical problem that exists among the above-mentioned prior art, can effectively reduce tire shoulder earth pressure and side direction slippage.

In order to achieve the above object, the utility model provides a following scheme:

the utility model discloses a can improve radial aircraft tire tread wearing and tearing life-span's child hat structure, go up the side wall, two including child hat body and two go up the side wall and be fixed in respectively the both sides of child hat body, child hat body includes the tread, be equipped with a plurality of skid resistant pattern on the tread, child hat body with the junction of going up the side wall is equipped with ground connection end edge, first shoulder arc portion and second shoulder arc portion, the first end of first shoulder arc portion and second shoulder arc portion is fixed in respectively the both sides of ground connection end edge, the second end of first shoulder arc portion and second shoulder arc portion is fixed in respectively the tread with the one end of last side wall, upward be equipped with side wall arc portion on the side wall, side wall arc portion with be equipped with a plurality of slots between the second shoulder arc portion.

Preferably, the outer side surface of the tread is a plane, and the tread is tangent to the first shoulder arc portion.

Preferably, the anti-skid pattern includes an inner groove and an outer groove, the outer groove being closer to the ground-contacting end edge than the inner groove.

Preferably, the distance from the outer groove to the second end of the first shoulder arc portion is a first pitch, and the first pitch is not less than 10 mm.

Preferably, the distance from the outer groove to the ground-contacting end edges is a second distance, half of the length of the ground-contacting end edges on both sides is a third distance, and the second distance is 32% -45% of the third distance.

Preferably, still include public tangent line connecting portion, public tangent line connecting portion with the side wall arc portion is close to the one end tangential direction collineation of slot, the first end of public tangent line connecting portion is fixed in the slot is close to one side of second shoulder arc portion, the second end of public tangent line connecting portion is fixed in the second end of second shoulder arc portion.

Preferably, the crown body further comprises a belt layer, the length from the end of the belt layer to the tread is a fourth distance, and the depth of the groove is 40% -65% of the fourth distance.

Preferably, the upper sidewall on one side is provided with three grooves, the cross section of each groove is triangular, and the angle of the groove bottom of each groove is an acute angle.

The utility model discloses for prior art gain following technological effect:

by increasing the grounding area of the shoulder area, the lateral force transmitted to the shoulder by the upper tire side is reduced, the grounding pressure and the slippage of the shoulder area can be effectively reduced, and the uniformity and the abrasion life of the tire tread abrasion are obviously improved.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required to be used in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.

FIG. 1 is a half-sectional view of a crown structure of the present embodiment for improving the wear life of a tread of a radial aircraft tire;

in the figure: 1-a crown structure capable of prolonging the abrasion life of the tread of the radial aircraft tire; 2-tread; 3-inner pattern grooves; 4-outer groove; 5-a ground edge; 6-common tangent line connection; 7-a belt ply; 8-a trench; 9-upper sidewall; l1 — first pitch; l2 — second spacing; l3-third pitch; l4-fourth pitch; r1-first shoulder arc; r2-second shoulder arc; r3 — sidewall arc.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

In order to make the above objects, features and advantages of the present invention more comprehensible, the present invention is described in detail with reference to the accompanying drawings and the detailed description.

As shown in FIG. 1, the present embodiment provides a tire crown structure 1 capable of improving the wear life of a radial aircraft tire tread, which comprises a tire crown body and two upper sidewalls 9, wherein the two upper sidewalls 9 are respectively fixed on the left and right sides of the tire crown body. The tire crown body comprises a tire tread 2, the tire tread 2 is in contact with the ground during working, a plurality of anti-slip patterns are arranged on the tire tread 2, the anti-slip patterns can enhance friction force, and the tire is prevented from slipping. The junction of child hat body and last side wall 9 is equipped with ground connection end edge 5, first shoulder circular arc portion R1 and second shoulder circular arc portion R2, and ground connection end edge 5, first shoulder circular arc portion R1 and second shoulder circular arc portion R2 are two sets of, and are located the both sides of child hat body, and ground connection end edge 5, first shoulder circular arc portion R1 and second shoulder circular arc portion R2 and tread 2 formula structure as an organic whole. The first ends of the first shoulder arc portion R1 and the second shoulder arc portion R2 are respectively fixed at two sides of the grounding end edge 5, the second ends of the first shoulder arc portion R1 and the second shoulder arc portion R2 are respectively fixed at one end of the tire tread 2 adjacent to the upper sidewall 9, namely, the second ends of the first shoulder arc portion R1 and the second shoulder arc portion R2 positioned at the left side of the tire are respectively fixed on the tire tread 2 and the upper sidewall 9 at the left side of the tire, and the second ends of the first shoulder arc portion R1 and the second shoulder arc portion R2 positioned at the right side of the tire are respectively fixed on the tire tread 2 and the upper sidewall 9 at the right side of the tire. Be equipped with side wall circular arc portion R3 on going up the side wall 9, be equipped with a plurality of grooves 8 between side wall circular arc portion R3 and the second shoulder circular arc portion R2, the quantity and the shape of groove 8 can set up according to actual need.

In use, the groove 8 is beneficial to reducing the lateral force transmitted to the first shoulder arc portion R1 by the upper sidewall 9, and further reduces the ground pressure and the lateral slip of the first shoulder arc portion R1.

Regarding the specific shape of the tread 2, in this embodiment, the outer side surface of the tread 2 is a plane, that is, the cross section of the tread 2 is a straight line, and the cross section of the tread 2 is tangent to the second end of the cross section of the first shoulder circular arc portion R1.

As for the anti-skid pattern, in the present embodiment, the anti-skid pattern includes the inner grooves 3 and the outer grooves 4, and the outer grooves 4 are closer to the ground contact end edges 5 than the inner grooves 3. The inner grooves 3 and the outer grooves 4 are two in number, the two inner grooves 3 are positioned at the inner sides of the two outer grooves 4, and the specific shapes and sizes of the inner grooves 3 and the outer grooves 4 can be adjusted by a person skilled in the art according to actual needs.

In this embodiment, the distance from the outer groove 4 to the second end of the first shoulder arc portion R1 is the first distance L1, and the first distance L1 is not less than 10 mm. The purpose of this arrangement is to increase the ground contact area of the first shoulder arc R1, to increase the static friction between the first shoulder arc R1 and the ground, and to suppress the lateral slip of the first shoulder arc R1.

Similarly, in order to enhance the static friction between the first shoulder arc portion R1 and the ground, in this embodiment, the distance from the outer groove 4 to the ground contacting end 5 is the second distance L2, the half length of the ground contacting end 5 on both sides is the third distance L3, and the second distance L2 is 32% to 45% of the third distance L3.

In this embodiment, still include public tangent line connecting portion 6, public tangent line connecting portion 6 and last side wall 9 formula structure as an organic whole, public tangent line connecting portion 6 and the one end tangential direction collineation that side wall arc portion R3 is close to slot 8, and the first end of public tangent line connecting portion 6 is fixed in slot 8 and is close to one side of second shoulder arc portion R2, and the second end of public tangent line connecting portion 6 is fixed in the second end of second shoulder arc portion R2. The common tangent line connecting portion 6 is mutually matched with the groove 8, so that the lateral force transmitted to the first shoulder arc portion R1 from the upper tire side 9 is reduced, and the grounding pressure and the lateral slip of the first shoulder arc portion R1 are further reduced.

Further, in this embodiment, the crown body further includes a belt layer 7, the belt layer 7 includes a plurality of layers, each layer has a different width, the length from the end of the widest belt layer 7 to the tread 2 is a fourth distance L4, and the depth of the groove 8 is 40% -65% of the fourth distance L4.

Regarding the specific structure of the grooves 8, in the present embodiment, the upper sidewall 9 on one side is provided with three grooves 8, the cross section of the groove 8 is triangular, and the groove bottom angle of the groove 8 is an acute angle. The number and shape of the grooves 8 can also be adjusted by the skilled person according to the actual need.

The principle and the implementation mode of the present invention are explained by applying specific examples in the present specification, and the above descriptions of the examples are only used to help understanding the method and the core idea of the present invention; meanwhile, for the general technical personnel in the field, according to the idea of the present invention, there are changes in the concrete implementation and the application scope. In summary, the content of the present specification should not be construed as a limitation of the present invention.

Claims

1. The utility model provides a can improve radial aircraft tire tread wearing and tearing life-span's hat structure which characterized in that: including the child hat body and two go up the side wall, two go up the side wall and be fixed in respectively the both sides of child hat body, child hat body includes the tread, be equipped with a plurality of anti-skidding decorative patterns on the tread, child hat body with the junction of going up the side wall is equipped with ground connection end edge, first shoulder circular arc portion and second shoulder circular arc portion, the first end of first shoulder circular arc portion and second shoulder circular arc portion is fixed in respectively the both sides of ground connection end edge, the second end of first shoulder circular arc portion and second shoulder circular arc portion is fixed in respectively the tread with the one end of last side wall, upward be equipped with side wall circular arc portion on the side wall, side wall circular arc portion with be equipped with a plurality of slots between the second shoulder circular arc portion.

2. A crown structure capable of improving the wear life of a radial aircraft tire tread according to claim 1, wherein: the outer side surface of the tire tread is a plane, and the tire tread is tangent to the first shoulder circular arc part.

3. A crown structure capable of improving the wear life of a radial aircraft tire tread according to claim 1, wherein: the non-slip pattern includes an inner groove and an outer groove, the outer groove being closer to the ground contacting end edge than the inner groove.

4. A crown structure for improving the wear life of a radial aircraft tire tread according to claim 3, wherein: the distance from the outer groove to the second end of the first shoulder arc part is a first distance, and the first distance is not less than 10 mm.

5. A crown structure for improving the wear life of a radial aircraft tire tread according to claim 3, wherein: the distance from the outer pattern groove to the grounding end edges is a second distance, half of the length of the grounding end edges positioned on two sides is a third distance, and the second distance is 32% -45% of the third distance.

6. A crown structure capable of improving the wear life of a radial aircraft tire tread according to claim 1, wherein: still include public tangent line connecting portion, public tangent line connecting portion with the side wall circular arc portion is close to the one end tangential direction collineation of slot, the first end of public tangent line connecting portion is fixed in the slot is close to one side of second shoulder circular arc portion, the second end of public tangent line connecting portion is fixed in the second end of second shoulder circular arc portion.

7. A crown structure capable of improving the wear life of a radial aircraft tire tread according to claim 6, wherein: the tire crown body further comprises a belt layer, the length from the end of the belt layer to the tire tread is a fourth distance, and the depth of the groove is 40% -65% of the fourth distance.

8. A crown structure capable of improving the wear life of a radial aircraft tire tread according to claim 1, wherein: the upper tire side of one side is equipped with three the slot, the cross section of slot is triangle-shaped, the tank bottom angle of slot is the acute angle.