阅读说明：本技术 一种斜交港口胎 (Oblique crossing port tire ) 是由 褚红星 闫晨宇 于 2020-09-02 设计创作，主要内容包括：本发明公开一种斜交港口胎,包括胎体以及设置在胎体内部的帘布层,所述胎体包括胎冠、胎肩、胎侧和胎圈,所述帘布层交叉排列设置有多层,所述胎侧外表面到帘布层的中间层之间设有散热孔。轮胎的胎肩及胎圈区域是轮胎使用过程中的产热高发区,通过在轮胎的胎肩及胎圈区域钻孔至胎体帘线内部,从而使积攒在帘布层内部的热量在使用过程中沿所钻孔散发出来,避免帘布层的热脱层现象,通过改善后,在原有生产工艺不变的前提下,轮胎的使用寿命及其耐久小时数均有大幅度提高。(The invention discloses an oblique crossing port tire which comprises a tire body and a cord fabric layer arranged inside the tire body, wherein the tire body comprises a tire crown, a tire shoulder, a tire side and a tire bead, the cord fabric layer is arranged in a crossed mode and provided with a plurality of layers, and heat dissipation holes are formed between the outer surface of the tire side and the middle layer of the cord fabric layer. The tire shoulder and the tire bead area of the tire are heat generation high-rise areas in the use process of the tire, and holes are drilled in the tire shoulder and the tire bead area of the tire to the inside of the tire body cord, so that heat accumulated in the cord fabric layer is dissipated along the drilled holes in the use process, the thermal delamination phenomenon of the cord fabric layer is avoided, and after improvement, the service life and the durable hours of the tire are greatly prolonged under the premise that the original production process is not changed.)

1. The utility model provides a skew port child, its characterized in that includes the matrix and sets up the ply at the inside matrix of matrix, the matrix includes child hat, tire shoulder, side wall and tire bead, the ply is crisscross to be arranged and is provided with the multilayer, be equipped with the louvre between the intermediate level of side wall surface to the ply.

2. The bias port tire according to claim 1, wherein a rim fitting line is provided on the tire body, the rim fitting line being arranged in a ring shape along the outer periphery of the bead.

3. The bias port tire of claim 2, wherein the louvers include a shoulder louver disposed in a shoulder region and a bead louver disposed proximate to the rim assembly line region.

4. The bias port tire according to claim 3, wherein the deepest point of the shoulder heat dissipation hole is at a position of: and making a perpendicular line from the intersection point of the outer surface of the tire crown and the outer surface of the tire shoulder to the inner surface of the tire cord fabric layer to obtain a line L, wherein the thickness of the line L on the tire cord fabric layer is a line M, and the midpoint A of the line M is taken as the deepest point of the heat dissipation hole of the tire shoulder.

5. The bias port tire according to claim 4, wherein the drilling path of the shoulder heat dissipation hole is as follows: and horizontally extending to the outer contour of the tire by taking the A as a starting point to obtain an intersection point Q, and then connecting a line of Q and A to be a drilling path of the tire shoulder heat dissipation hole.

6. The bias port tire according to claim 5, wherein the distance from Q to the central axis of the tire is C, and the number of shoulder louvers is [2 π C/50 ].

7. The bias harbor tire according to claim 3, wherein the deepest point of the bead heat dissipation hole is: and taking the rim assembly line as a reference point, taking the deviation of 10mm to the outer periphery as the reference point, drawing a perpendicular line from the reference point to the inner surface of the cord fabric layer to obtain a line O, taking the thickness of the line O on the cord fabric layer as a line P, and taking the midpoint B of the line P as the deepest point of the bead heat dissipation hole.

8. The bias harbor tire according to claim 7, wherein the drilling path of the bead heat dissipation hole is: and horizontally extending to the outer contour of the tire by taking the B as a starting point to obtain an intersection point R, and then connecting a line between the R and the B to form a drilling path of the bead heat dissipation hole.

9. The bias port tire according to claim 8, wherein R is a distance D from the center axis of the tire, and the number of bead louvers F is [2 π D/50 ].

10. The bias port tire according to claim 1, wherein the heat dissipation holes are tapered heat dissipation holes drilled with a tapered drill.

Technical Field

The invention belongs to the technical field of tire design, and particularly relates to an oblique crossing port tire.

Background

The tire includes the matrix, divide into child crown, tire shoulder, side wall and tire bead according to the position again on the matrix, traditional skew harbor tire sets up more at tire shoulder and the regional ply number of piles of tire bead because the needs of installation use usually for tire shoulder and the regional ply thickness of tire bead are thicker, and the heat is concentrated and is difficult to distribute away in the cord fabric in the use, along with the temperature improves, ply intensity sharply reduces, and hot delaminating appears in the fracture at last, thereby causes the early damage of tire, influences the security performance of tire.

Accordingly, further developments and improvements are still needed in the art.

Disclosure of Invention

In order to solve the above problems, a bias port tire is proposed. The invention provides the following technical scheme:

the utility model provides a skew port child, includes the matrix and sets up the casing ply in the matrix is inside, the matrix includes child hat, tire shoulder, side wall and tire bead, the casing ply is alternately arranged and is provided with the multilayer, be equipped with the louvre between the intermediate level of side wall surface to casing ply.

Furthermore, a rim assembly line is arranged on the tire body, and the rim assembly line is arranged to be annular along the periphery of the tire bead.

Further, the heat dissipation holes comprise a tire shoulder heat dissipation hole and a tire bead heat dissipation hole, the tire shoulder heat dissipation hole is arranged in a tire shoulder area, and the tire bead heat dissipation hole is arranged close to a rim assembly line area.

Further, the deepest point of the shoulder heat dissipation hole is positioned as follows: and making a perpendicular line from the intersection point of the outer surface of the tire crown and the outer surface of the tire shoulder to the inner surface of the tire cord fabric layer to obtain a line L, wherein the thickness of the line L on the tire cord fabric layer is a line M, and the midpoint A of the line M is taken as the deepest point of the heat dissipation hole of the tire shoulder.

Further, the drilling path of the shoulder heat dissipation hole is as follows: and horizontally extending to the outer contour of the tire by taking the A as a starting point to obtain an intersection point Q, and then connecting a line of Q and A to be a drilling path of the tire shoulder heat dissipation hole.

Further, the distance from Q to the central axis of the tire is C, and the number of the shoulder heat dissipation holes is [2 pi C/50 ].

Further, the deepest point of the bead heat dissipation hole is positioned as follows: and taking the rim assembly line as a reference point, taking the deviation of 10mm to the outer periphery as the reference point, drawing a perpendicular line from the reference point to the inner surface of the cord fabric layer to obtain a line O, taking the thickness of the line O on the cord fabric layer as a line P, and taking the midpoint B of the line P as the deepest point of the bead heat dissipation hole.

Further, the drilling path of the bead heat dissipation hole is as follows: and horizontally extending to the outer contour of the tire by taking the B as a starting point to obtain an intersection point R, and then connecting a line between the R and the B to form a drilling path of the bead heat dissipation hole.

Further, R is a distance D from the central axis of the tire, and the number of the bead heat dissipation holes is [2 pi D/50 ].

Further, the heat dissipation holes are tapered heat dissipation holes drilled by a tapered drill bit.

Has the advantages that:

this application is through carrying out even ground drilling to the regional of skew harbor tire near tire shoulder and tire bead temperature concentration, under the unchangeable circumstances of original tire structure and production technology of guaranteeing, can improve the regional radiating rate of skew harbor tire shoulder and tire bead greatly, avoids thermal concentration to reduce the appearance of the thermal delamination condition, improved the life and the safe handling nature of skew harbor tire.

Drawings

FIG. 1 is a schematic cross-sectional view of an oblique crossing port tire according to an embodiment of the present invention;

FIG. 2 is a schematic diagram of a punching position of a bias port tire according to an embodiment of the present invention.

Detailed Description

In order to make the technical solutions of the present invention better understood, the following description of the technical solutions of the present invention with reference to the accompanying drawings of the present invention is made clearly and completely, and other similar embodiments obtained by a person of ordinary skill in the art without any creative effort based on the embodiments in the present application shall fall within the protection scope of the present application. In addition, directional terms such as "upper", "lower", "left", "right", etc. in the following embodiments are directions with reference to the drawings only, and thus, the directional terms are used for illustrating the present invention and not for limiting the present invention.

As shown in figures 1-2, the oblique crossing port tire comprises a tire body 1 and a tire ply 2 arranged inside the tire body 1, wherein heat dissipation holes are formed between the middle layers of the tire ply, the tire body 1 comprises a tire crown 3, a tire shoulder 4, a tire side 5 and a tire bead 6, the heat dissipation holes are formed between the middle layers of the tire ply, the tire ply 2 is provided with a plurality of layers in a crossed arrangement mode, and heat dissipation holes are formed between the outer surface of the tire side 5 and the middle layer of the tire ply 2. The tire shoulder 4 and the tire bead 6 area of the tire are heat production high-rise areas in the use process of the tire, holes are drilled in the tire shoulder 4 and the tire bead 6 area of the tire to the tire body 1, so that heat accumulated in the tire cord layer 2 is dissipated along the drilled holes in the use process, the thermal delamination phenomenon of the tire cord layer 2 is avoided, and the service life and the durable hours of the tire are greatly prolonged on the premise that the original production process is unchanged after improvement.

Further, a heat dissipation hole is arranged between the middle layers of the cord fabric layers, a rim assembly line 7 is arranged on the cord fabric body 1, and the heat dissipation hole rim assembly line 7 is arranged between the middle layers of the cord fabric layers and is arranged in an annular shape along the periphery of the tire bead 6. Rim assembly line 7 is outstanding in the setting of side wall 5, and its position is according to the fixed setting of unified standard usually, and the protrusion setting is convenient for direct observation installation whether target in place, simultaneously, because ply 2 sets up inside the tire, hardly judges the thickest position of its user state except that the design drawing, rim assembly line 7 makes things convenient for the auxiliary thickest position of confirming ply 2, refers to when the person of facilitating the use drills.

Further, be equipped with the louvre between the intermediate level of ply and include tire shoulder louvre and tire bead louvre, be equipped with the louvre tire shoulder louvre between the intermediate level of ply and set up in tire shoulder 4 region, be equipped with louvre tire bead louvre between the intermediate level of ply and set up and be equipped with louvre rim assembly line 7 region between the intermediate level near the ply. Only set up the louvre at casing ply 2 to the thickest position department of tire surface, very big reduction the quantity that sets up of louvre, guarantee the holistic structural strength of tire and durability, the heat that will produce simultaneously again distributes away along the louvre as far as, avoids casing ply 2 to reduce because of overheated intensity that leads to, fracture delaminating phenomenon.

Further, the deepest point of the tire shoulder heat dissipation holes of the heat dissipation holes arranged between the middle layers of the cord fabric layers is positioned as follows: and (3) making a perpendicular line from the intersection point of the outer surface of the crown 3 and the outer surface of the tire shoulder 4 to the inner surface of the tire cord fabric layer 2 to obtain a line L, wherein the thickness of the line L on the tire cord fabric layer 2 is a line M, and the midpoint A of the line M is the deepest point of the tire shoulder heat dissipation hole. Near tire shoulder 4 casing ply 2 thickness is comparatively homogeneous, it is poor not too big thickness, consequently, influence radiating factor mainly on matrix 1, because tire structural design requires, make tire shoulder 4 be approximate right angle shape with the 3 intersection of child hat, and inside casing ply 2 need cooperate the inner tube of a tyre design to the arc, this just makes tire shoulder 4 and 3 intersection of child hat to the distance of inner tube the longest, therefore become one of the thickest region that hinders the heat dissipation, consequently, need set up the louvre on the thickest distance and dispel the heat, and in order to guarantee the structural strength of casing ply 2, avoid the louvre to cause the influence to the inner tube of a tyre, consequently, select the intermediate position of casing ply 2 as the deepest point of louvre.

Further, the drilling path that is equipped with louvre tire shoulder louvre between the intermediate level of ply is: and horizontally extending to the outer contour of the tire by taking the A as a starting point to obtain an intersection point Q, and then connecting a line of Q and A to be a drilling path of the tire shoulder heat dissipation hole. Drilling route is extended to predetermined thickest central point A department by the horizontal direction, on the one hand because the horizontal direction is favorable to constructor to master the drilling angle, avoid drilling angle error, on the other hand makes outside louvre be in side 5 positions, avoid impurity card such as stone in the driving in-process surrounding environment to go into the louvre, hinder radiating normal clear, and simultaneously, do not destroy tire structural strength, make easy wearing and tearing positions such as child hat 3, tire shoulder 4 keep accomplishing, the life of extension tire.

Furthermore, the distance from Q to the central axis of the tire is C, and the number E of the heat dissipation hole tire shoulder heat dissipation holes between the middle layers of the cord fabric layers is [2 pi C/50 ]. This formula is for getting the integer function equality, and it needs to get the integer to tire shoulder louvre quantity E to punch, uses tire central axis to be 5 circumference evenly distributed along the side of the tyre as the center pin, uses the center pin as the even distributed louvre of center of symmetry, is favorable to the stress in the even release use, avoids the louvre to tire overall structure intensity to produce the influence.

Further, the deepest point of the heat dissipation hole of the tire bead is arranged between the middle layers of the cord fabric layers: and taking the rim assembly line 7 as a reference point, taking the deviation of 10mm to the periphery as a reference point, drawing a perpendicular line from the reference point to the inner surface of the cord fabric layer 2 to obtain a line O, taking the thickness of the line O on the cord fabric layer 2 as a line P, and taking the midpoint B of the line P as the deepest point of the bead heat dissipation hole. For the tire bead 6 area, because the design characteristics of the cord fabric layer 2, the cord fabric layer 2 is thicker and thicker at the position closer to the tire bead 6, but for the actual use situation, because the tire and the rim are not in a tight bonding state at the position of the tire bead 6, a certain gap can be generated by extrusion in the driving process, the cord fabric layer 2 at the portion of the tire bead 6 can dissipate heat through the extrusion gap, and the metal rim has good heat dissipation performance. The tire ply 2 is characterized in that a rim assembly line 7 is used as a reference point, the deviation of the rim assembly line to the periphery is 10mm, the thickest position of the tire ply 2 is found on the basis of maintaining the structural strength of the tire, the midpoint position of the tire ply 2 needs to be taken as the deepest point of a heat dissipation hole after the thickest position is found, and damage to the structure of the tire ply 2 caused by the hole due to drilling is avoided.

Further, the drilling path of the bead heat dissipation holes with the heat dissipation holes arranged between the middle layers of the cord fabric layers is as follows: and horizontally extending to the outer contour of the tire by taking the B as a starting point to obtain an intersection point R, and then connecting a line between the R and the B to form a drilling path of the bead heat dissipation hole. The drilling route is extended to predetermined thickest central point B by the horizontal direction, on the one hand because the horizontal direction is favorable to constructor to master the drilling angle, avoid drilling angle error, on the other hand because the tire bead louvre is nearer apart from rim assembly line 7, assembly at the tire, the maintenance process is very easy because the dismouting leads to the tire bead louvre to be torn, thereby lead to the structural strength of tire to descend, and the rim assembly line 7 has then been kept away from in the level setting, and drill at side wall 5 department, do not destroy tire structural strength, make and keep accomplishing near rim assembly line 7 department easy wear part, the life of extension tire.

Further, the distance from R to the central axis of the tire is D, and the number F of the heat dissipation holes and the bead heat dissipation holes between the intermediate layers of the cord fabric layers is [2 pi D/50 ]. This formula is for getting the integer function equality, punches and need get the integer to tire bead louvre quantity F, uses tire central axis to be 5 circumference evenly distributed along the side of the wall as the center pin, uses the center pin as the even distributed louvre of center of symmetry, is favorable to the stress in the even release use, avoids the louvre to tire overall structure intensity to produce the influence.

Furthermore, the heat dissipation holes arranged between the middle layers of the cord fabric layers are conical heat dissipation holes drilled by conical drill bits. The toper louvre is favorable to radiating going on fast, reduce the damage degree of louvre to 2 structural strength of inside casing ply simultaneously as far as, preferably, carve the drilling mark of the Q point of affirmation and R point on the cover tire mould, drilling mark passes through mould one shot forming with matrix 1, save the required measuring time of later stage drilling, with electric drill centre gripping conical bit, according to drilling mark hole position and measurement depth bore to 2 inside of casing ply can, preferably, the conical bit root is less than or equal to 2 mm.

The method takes 18.00-25 port tires as experimental objects, and carries out the cord fabric layer drilling contrast experiment on the experimental objects, wherein the contrast experiment of the endurance testing machine and the contrast experiment of actual port use are included, and the experimental results are as follows:

conditions of the experiment	Duration of endurance time/h of undrilled radiating holes of cord fabric	Duration of durability/h of cord fabric layer drill heat dissipation hole
			Durability testing machine	78	118
Kailai harbor	3900	5600

Before and after the improvement of the heat dissipation holes, the comparison table of the endurance measurement data and the port use data is shown:

the endurance cumulative time before improvement was 84 hours, the cumulative mileage was 427.47 km, and the endurance cumulative time after improvement was 120 hours, the cumulative mileage was 598.61 km. The durable hours after improvement is improved by 43 percent, and the durable mileage is improved by 40 percent.

The present invention has been described in detail, and it should be understood that the detailed description and specific examples, while indicating the preferred embodiment of the invention, are intended for purposes of illustration only and are not intended to limit the scope of the invention.