WO2021088448A1 - 一种用于轻型载重车辆的胎圈及应用其制造的轮胎 - Google Patents

一种用于轻型载重车辆的胎圈及应用其制造的轮胎 Download PDF

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WO2021088448A1
WO2021088448A1 PCT/CN2020/108668 CN2020108668W WO2021088448A1 WO 2021088448 A1 WO2021088448 A1 WO 2021088448A1 CN 2020108668 W CN2020108668 W CN 2020108668W WO 2021088448 A1 WO2021088448 A1 WO 2021088448A1
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Prior art keywords
bead
reinforcement
bead filler
rubber
filler
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PCT/CN2020/108668
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English (en)
French (fr)
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王�锋
杨宝忠
陈东
滕雷
朱丽艳
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山东玲珑轮胎股份有限公司
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Publication of WO2021088448A1 publication Critical patent/WO2021088448A1/zh

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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60C—VEHICLE TYRES; TYRE INFLATION; TYRE CHANGING; CONNECTING VALVES TO INFLATABLE ELASTIC BODIES IN GENERAL; DEVICES OR ARRANGEMENTS RELATED TO TYRES
    • B60C15/00—Tyre beads, e.g. ply turn-up or overlap
    • B60C15/0009—Tyre beads, e.g. ply turn-up or overlap features of the carcass terminal portion
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60C—VEHICLE TYRES; TYRE INFLATION; TYRE CHANGING; CONNECTING VALVES TO INFLATABLE ELASTIC BODIES IN GENERAL; DEVICES OR ARRANGEMENTS RELATED TO TYRES
    • B60C15/00—Tyre beads, e.g. ply turn-up or overlap
    • B60C15/04—Bead cores
    • B60C15/05—Bead cores multiple, i.e. with two or more cores in each bead
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60C—VEHICLE TYRES; TYRE INFLATION; TYRE CHANGING; CONNECTING VALVES TO INFLATABLE ELASTIC BODIES IN GENERAL; DEVICES OR ARRANGEMENTS RELATED TO TYRES
    • B60C9/00—Reinforcements or ply arrangement of pneumatic tyres
    • B60C9/02—Carcasses
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60C—VEHICLE TYRES; TYRE INFLATION; TYRE CHANGING; CONNECTING VALVES TO INFLATABLE ELASTIC BODIES IN GENERAL; DEVICES OR ARRANGEMENTS RELATED TO TYRES
    • B60C15/00—Tyre beads, e.g. ply turn-up or overlap
    • B60C15/04—Bead cores
    • B60C2015/042—Bead cores characterised by the material of the core, e.g. alloy

Definitions

  • the invention relates to a bead for light-duty trucks and a tire manufactured by using the bead, and belongs to the technical field of bead manufacturing.
  • the bead part of general light truck tires usually includes: a bead wire, which is designed to contact with the mounting rim, and is used to fix the tire to the rim; at least one carcass reinforcement, which is anchored by surrounding the bead wire On each bead; the bead filler is placed on the outside of each bead wire and inside the crimping space of the carcass reinforcement; because the bead of the tire is a high stress concentration area during the use of the tire, when When a force exceeding its standard load is applied in the radial direction of the tire, the tire will repeatedly rub between the carcass reinforcement and the bead wire under high torsional stress for a long time, resulting in friction between the carcass reinforcement and the bead wire. Accumulation of heat will increase, leading to early bulging or delamination caused by overloading of the tire bead, which poses a great driving safety hazard.
  • the present invention provides a bead for light-duty trucks and a tire manufactured by using the bead, so as to solve the problem of bulging or delamination caused by heat accumulation in the bead of the tire in the prior art due to overload Technical issues.
  • a bead for light-duty trucks including a bead wire in contact with the mounting rim, and a tire anchored on the bead by wrapping around the annular bead wire
  • a bead reinforcement and a bead filler placed on the outside of each bead wire and in the crimping space of the carcass reinforcement, the bead filler being overlapped by the first bead filler and the second bead filler
  • Composite formation the first bead filler and the second bead filler are both placed on the radially outer side of the bead wire, and further include a rubber reinforcement, which is placed between the carcass reinforcement and the sidewall In between, the rubber reinforcement is formed along the circumferential direction, and the first bead filler, the second bead filler and the rubber reinforcement are all made of low heat-generating rubber material.
  • the beneficial effect of the present invention is that by setting the bead filler, the intersecting positions of the first bead filler, the second bead filler and the rubber reinforcement are reasonably misaligned to disperse the stress at the bead part, and at the same time adopt
  • the low heat-generating rubber material can reduce the heat concentration in the bead area and improve the durability of the tire bead area under overload conditions, especially to improve the bead and carcass reinforcement to deal with the loss of heat and stress concentration caused by heat generation. Layer capacity.
  • the present invention can also be improved as follows.
  • the bead constraining reinforcement is wrapped around the bead wire, and is spirally covered and wound on the bead wire.
  • the beneficial effect of adopting the above-mentioned further solution is that by providing the bead restraint reinforcement, the bead wire is restrained, and the strength of the bead wire is increased, thereby increasing the overall strength of the bead.
  • the rubber reinforcement extends in the radial direction of the tire, the rubber reinforcement is a rubber compound with a Shore hardness of not greater than 86 in a vulcanized state, and the axial thickness h1 of the rubber reinforcement is in the numerical range: 0.1mm ⁇ h1 ⁇ 10mm, the rubber reinforcement is in a crescent shape with a middle thickness greater than the thickness on both sides, and the length dimension L1 of the rubber reinforcement has a numerical range: 0.1mm ⁇ L1 ⁇ 10mm.
  • the beneficial effect of adopting the above-mentioned further solution is that by limiting the material and axial thickness and length dimension of the rubber reinforcement, the low heat generation performance of the rubber reinforcement is improved, which helps to reduce the heat concentration at the bead area, and improves the tire's super Durability of the bead area under load.
  • the installation and positioning dimensions of the rubber reinforcement between the carcass reinforcement and the sidewall are: the radial inner height RH1 value range is: 0mm ⁇ RH1 ⁇ 20cm, the radial outer height RH2 value range is: 0mm ⁇ RH1 ⁇ 20cm .
  • the beneficial effect of adopting the above-mentioned further scheme is that by restricting the positioning size of the rubber reinforcement, the low heat generation performance of the rubber reinforcement can further improve the restraint of the heat concentration at the bead area, thereby improving the bead of the tire under overload conditions. Durability of parts.
  • both the first bead filler and the second bead filler are rubber compounds with a Shore hardness of not more than 90 in a vulcanized state.
  • the thickness h2 of the first bead filler in the radial direction ranges from 0.1mm ⁇ h2 ⁇ 15mm, and its axial thickness is gradual, and the radial inner thickness is greater than the radial outer thickness.
  • the numerical range of the thickness h3 of the second bead filler in the radial direction 0.1mm ⁇ h3 ⁇ 15mm, and its axial thickness is uniformly distributed.
  • the first bead filler is located on the radially outer side of the bead wire, and the height HL1 of the part extending along the radially outer side is in the range of 0mm ⁇ HL1 ⁇ SH*70%, and the second bead filler is located at The value range of the height HL2 of the radially outer side of the first bead filler and extending along the radially outer side: 0mm ⁇ HL2 ⁇ SH*70%, where SH is the radial height of the tire.
  • the numerical range of the width W of the overlapping composite area of the first bead filler and the second bead filler 0mm ⁇ W ⁇ 20cm.
  • the beneficial effect of adopting the above-mentioned further solution is that by restricting the materials of the first bead filler and the second bead filler, the low heat generation performance and high performance of the first bead filler and the second bead filler are improved. Viscous modulus characteristics, by limiting the thickness and height range of the first bead filler and the second bead filler in the radial direction, and further improve the low-productivity of the first bead filler and the second bead filler.
  • the thermal performance affects the delamination of the bead and carcass reinforcement due to heat generation and stress concentration.
  • a tire manufactured by using the above bead comprising a crown, two sidewalls and a bead.
  • the crown includes a tread rubber layer and a crown reinforcement.
  • the crown reinforcement is made of steel wire and nylon fibers along the tire. Circumferentially formed, the crown reinforcement is circumferentially covered by a tread rubber layer, and the sidewalls extend radially outward from the bead to the crown.
  • Figure 1 is a radial cross-sectional view of a tire in the prior art
  • Figure 2 is a radial cross-sectional view of a tire according to an embodiment of the invention.
  • Figure 3 is an enlarged schematic view of the rubber reinforcement in Figure 2;
  • Figure 4 is an enlarged schematic diagram of the bead filler in Figure 2;
  • Figure 5 is a schematic diagram of the positioning of the bead filler in Figure 2;
  • Figure 6 is a schematic diagram of the positioning of the rubber reinforcement.
  • Carcass reinforcement 20. Tire crown, 30. Sidewall, 40. Bead wire, 50. Bead filler, 60. Rubber reinforcement, 70. Bead restraint reinforcement, 21. Tread Rubber layer, 22. crown reinforcement, 51. second bead filler, 52. first bead filler.
  • the radial height SH is defined as the radial distance between the radially innermost point of the tire bead wire and the radially outermost point of the tread when the tire is installed on the rim;
  • the axial level M of the tire is defined as: when the tire is installed on the rim, the radially innermost plane of the tire bead is located;
  • the height HL1 of the portion where the first bead filler extends radially outward is defined as the radial distance from the radially outermost point of the tire bead to the highest point of the first bead filler radially outward;
  • the height HL2 of the portion where the second bead filler extends radially outward is defined as the radial distance from the radially outermost point of the tire bead to the highest point of the second bead filler radially outward;
  • the width W of the overlapping composite area of the first bead filler and the second filler is defined as the distance from the innermost point to the outermost point in the radial direction of the overlap;
  • the positioning radial inner height RH1 of the rubber reinforcement is defined as the radial distance from the horizontal plane of the radially innermost point of the tire bead wire to the radially innermost point of the rubber reinforcement when the tire is installed on the rim;
  • the positioning radial inner height RH2 of the rubber reinforcement is defined as the radial distance from the horizontal plane of the radially innermost point of the tire bead wire to the radially outermost point of the rubber reinforcement when the tire is installed on the rim.
  • a bead for light-duty trucks comprising a bead wire 40 in contact with the mounting rim, a carcass reinforcement 10 anchored on the bead by surrounding the ring-shaped bead wire 40, and a carcass reinforcement 10 placed on each bead.
  • the first bead filler 52 and the second bead filler 51 are both placed on the radially outer side of the bead wire 40, and the first bead filler 52 and the second bead filler 51 are both vulcanized
  • the thickness h2 of the first bead filler 52 in the radial direction ranges: 0.1mm ⁇ h2 ⁇ 15mm, and its axial thickness is gradual, radially inside
  • the thickness is greater than the radial outer thickness
  • the thickness h3 of the second bead filler 51 in the radial direction ranges: 0.1mm ⁇ h3 ⁇ 15mm, and its axial thickness is evenly distributed, and the first bead filler 52 is located
  • the first bead filler 52 and the second bead filler 51 By restricting the materials of the first bead filler 52 and the second bead filler 51, the first bead filler 52 and the second bead filler can be improved.
  • the low heat generation performance and high viscous modulus characteristics of the bead filler 51 can further improve the first bead filler by limiting the thickness and height range of the first bead filler 52 and the second bead filler 51 in the radial direction.
  • the low heat build-up properties of the bead filler 52 and the second bead filler 51 affect the delamination of the bead and the carcass reinforcement 10 due to heat generation and stress concentration.
  • the rubber reinforcement 60 also includes a rubber reinforcement 60, the rubber reinforcement 60 is placed between the carcass reinforcement 10 and the sidewall 30, the rubber reinforcement 60 is formed along the circumferential direction, the first bead filler 52, the second bead filler The bead filler 51 and the rubber reinforcement 60 are made of low heat-generating rubber material.
  • the rubber reinforcement 60 extends in the radial direction of the tire, and the rubber reinforcement 60 is a rubber rubber with a Shore hardness of not greater than 86 in the vulcanized state.
  • the value range of the axial thickness h1 of the rubber reinforcement 60 is: 0.1mm ⁇ h1 ⁇ 10mm, the rubber reinforcement 60 is in a crescent shape with the thickness of the middle part greater than the thickness on both sides, and the length dimension L1 of the rubber reinforcement 60 Value range: 0.1mm ⁇ L1 ⁇ 10mm.
  • the installation and positioning dimension of the rubber reinforcement between the carcass reinforcement 10 and the sidewall 30 is: the radial inner height RH1 value range is: 0mm ⁇ RH1 ⁇ 20cm, diameter
  • the value range of the outer height RH2 is: 0mm ⁇ RH1 ⁇ 20cm.
  • the bead constraining reinforcement 70 surrounds the bead wire 40, and is spirally covered and wound on the bead wire 40.
  • the bead constraining reinforcement 70 By setting the bead constraining reinforcement 70, the bead The steel wire 40 is restrained to increase the strength of the bead wire 40, thereby increasing the overall strength of the bead.
  • the intersecting positions of the first bead filler 52, the second bead filler 51 and the rubber reinforcement 60 are reasonably misaligned to disperse the stress at the bead portion, and at the same time, low heat generation is adopted.
  • the rubber material can reduce the heat concentration in the bead area and improve the durability of the tire bead area under overload conditions, especially to improve the bead and carcass reinforcement 10 to deal with delamination caused by heat generation and stress concentration. ability.
  • a tire manufactured using the above-mentioned bead comprising a crown 20, two sidewalls 30 and a bead.
  • the crown 20 comprises a tread rubber layer 21 and a crown reinforcement 22.
  • the crown reinforcement 22 is made of The steel wire and nylon fiber are formed along the tire circumferential direction, the crown reinforcement 22 is circumferentially covered by the tread rubber layer 21, and the sidewall 30 extends radially outward from the bead to the crown 20.
  • Comparative experiment A comparative experiment was carried out on a low-speed and high-load traveling machine tool, and the traveling performance of the experimental example was improved by up to 50% compared with the comparison ratio.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Tires In General (AREA)

Abstract

一种用于轻型载重车辆的胎圈及应用其制造的轮胎，属于胎圈制造技术领域，包括与安装轮辋相接触的胎圈钢丝（40）、通过围绕在环形的胎圈钢丝（40）上从而锚固在胎圈上的胎体增强件（10）和置于每个胎圈钢丝（40）的外侧且在胎体增强件（10）的卷曲空间内的胎圈填充料（50），所述胎圈填充料（50）由第一胎圈填充料（52）和第二胎圈填充料（51）重叠复合形成，所述第一胎圈填充料（52）和第二胎圈填充料（51）均置于胎圈钢丝（40）的径向外侧，还包括橡胶增强件（60），所述橡胶增强件（60）置于胎体增强件（10）和胎侧（30）之间，所述橡胶增强件（60）沿周向形成，所述第一胎圈填充料（52）、第二胎圈填充料（51）和橡胶增强件（60）均采用低生热胶料材质，用以解决现有技术中轮胎的胎圈因超载而产生积热导致鼓包或脱层的技术问题。

Description

一种用于轻型载重车辆的胎圈及应用其制造的轮胎 技术领域
本发明涉及一种用于轻型载重车辆的胎圈及应用其制造的轮胎，属于胎圈制造技术领域。
背景技术
一般轻型载重轮胎的胎圈部位通常包括：一胎圈钢丝，旨在与安装轮辋相接触，用于将轮胎固定到轮辋上；至少一个胎体增强件，通过围绕在胎圈钢丝上从而锚固在每一个胎圈上；胎圈填充料，置于每个胎圈钢丝的外侧并且咋胎体增强件的卷曲空间内；由于轮胎的胎圈部位是在轮胎使用过程中的高应力集中区域，当在轮胎径向上施加超过其标准载荷的力时，轮胎在长时间的高扭曲应力下，胎体增强件与胎圈钢丝之间反复进行摩擦，造成在胎体增强件与胎圈钢丝之间的积热会越来越多，导致轮胎胎圈部位因超载导致的早起破坏鼓包或者脱层的问题，存在很大的行车安全隐患。
发明内容
本发明针对现有技术存在的不足，提供一种用于轻型载重车辆的胎圈及应用其制造的轮胎，用以解决现有技术中轮胎的胎圈因超载而产生积热导致鼓包或脱层的技术问题。
本发明解决上述技术问题的技术方案如下：一种用于轻型载重车辆的胎圈，包括与安装轮辋相接触的胎圈钢丝、通过围绕在环形的胎圈钢丝上从而锚固在胎圈上的胎体增强件和置于每个胎圈钢丝的外侧且在胎体增强件的 卷曲空间内的胎圈填充料，所述胎圈填充料由第一胎圈填充料和第二胎圈填充料重叠复合形成，所述第一胎圈填充料和第二胎圈填充料均置于胎圈钢丝的径向外侧，还包括橡胶增强件，所述橡胶增强件置于胎体增强件和胎侧之间，所述橡胶增强件沿周向形成，所述第一胎圈填充料、第二胎圈填充料和橡胶增强件均采用低生热胶料材质。
本发明的有益效果是：通过设置胎圈填充料，将第一胎圈填充料、第二胎圈填充料和橡胶增强件的交合位置进行合理错位，使胎圈部位的应力进行分散，同时采用低生热胶料，可以减小胎圈部位的热量集中，提高轮胎在超负荷情况下胎圈部位的耐久性，尤其是提高胎圈与胎体增强件应对因生热、应力集中而导致脱层的能力。
在上述技术方案的基础上，本发明还可以做如下改进。
进一步，还包括胎圈约束增强件，所述胎圈约束增强件围绕在胎圈钢丝上，且呈螺旋形覆盖缠绕在胎圈钢丝上。
采用上述进一步方案的有益效果是，通过设置胎圈约束增强件，对胎圈钢丝进行约束，提高胎圈钢丝的强度，从而提高胎圈的整体强度。
进一步，所述橡胶增强件沿轮胎径向上延伸，所述橡胶增强件采用硫化状态下邵氏硬度不大于86的橡胶胶料，所述橡胶增强件的轴向厚度h1数值范围：0.1mm≤h1≤10mm，所述橡胶增强件呈中部厚度大于两侧厚度的月牙型，所述橡胶增强件的长度尺寸L1数值范围：0.1mm≤L1≤10mm。
采用上述进一步方案的有益效果是，通过限制橡胶增强件使用的材质和轴向厚度以及长度尺寸，提高橡胶增强件的低生热性能，有助于减少胎圈部位的热量集中，提高轮胎在超负荷情况下胎圈部位的耐久性。
进一步，橡胶增强件在胎体增强件和胎侧之间的安装定位尺寸为：径向内侧高度RH1数值范围是：0mm＜RH1≤20cm,径向外侧高度RH2数值范围是：0mm＜RH1≤20cm。
采用上述进一步方案的有益效果是，通过对橡胶增强件的定位尺寸进行限制，进一步提高橡胶增强件的低生热性能对胎圈部位热量集中的抑制作用，从而提高轮胎在超负荷情况下胎圈部位的耐久性。
进一步，所述第一胎圈填充料和第二胎圈填充料均采用硫化状态下邵氏硬度不大于90的橡胶胶料。
进一步，所述第一胎圈填充料在径向延伸的厚度h2数值范围：0.1mm≤h2≤15mm，其轴向厚度呈渐变式，径向内侧厚度大于径向外侧厚度。
进一步，所述第二胎圈填充料在径向延伸的厚度h3数值范围：0.1mm≤h3≤15mm，其轴向厚度均匀分布。
进一步，所述第一胎圈填充料位于胎圈钢丝径向外侧，且沿径向外侧延伸的部位的高度HL1数值范围：0mm＜HL1＜SH*70％，所述第二胎圈填充料位于第一胎圈填充料的径向外侧，且沿径向外侧延伸的部位的高度HL2数值范围：0mm＜HL2＜SH*70％，其中SH为轮胎的径向高度。
进一步，所述第一胎圈填充料和第二胎圈填充料重叠复合区域的宽度W数值范围：0mm＜W＜20cm。
采用上述进一步方案的有益效果是，通过对第一胎圈填充料、第二胎圈填充料的材质进行限制，提高第一胎圈填充料和第二胎圈填充料的低生热性能和高粘性模量特性，通过对第一胎圈填充料和第二胎圈填充料在径向延伸的厚度和高度范围进行限制，进一步提高第一胎圈填充料和第二胎圈填充料的低生热性能对胎圈与胎体增强件因生热、应力集中而导致脱层的影响。
一种应用上述胎圈制造的轮胎，包括胎冠、两个胎侧和胎圈，所述胎冠包括胎面橡胶层和胎冠增强件，所述胎冠增强件由钢丝和尼龙纤维沿轮胎周向形成，所述胎冠增强件由胎面橡胶层周向覆盖，所述胎侧从胎圈径向向外延伸至胎冠。
附图说明
图1为现有技术中的轮胎径向截面图；
图2为本发明实施例的轮胎径向截面图；
图3为图2中橡胶增强件的放大示意图；
图4为图2中胎圈填充料的放大示意图；
图5为图2中胎圈填充料的定位示意图；
图6为橡胶增强件的定位示意图。
图中10.胎体增强件，20.胎冠，30.胎侧，40.胎圈钢丝，50.胎圈填充料，60.橡胶增强件，70.胎圈约束增强件，21.胎面橡胶层，22.胎冠增强件，51.第二胎圈填充料，52.第一胎圈填充料。
具体实施方式
以下结合附图对本发明的原理和特征进行描述，所举实例只用于解释本发明，并非用于限定本发明的范围。
参见附图1-6，图中，当使用术语“径向”时，表述涉及到轮胎的半径方向，如果更接近轮胎的旋转轴线时，则表述为“径向内侧”，当使用术语“周向”时，表述为轮胎滚动方向；
径向高度SH定义为：当轮胎安装在轮辋上，轮胎胎圈钢丝的径向最内点和胎面的径向最外点之间的径向距离；
轮胎的轴向水平M定义为：当轮胎安装在轮辋上，轮胎胎圈的径向最内侧所在平面；
第一胎圈填充料沿径向外侧延伸的部位的高度HL1定义为：从轮胎胎圈的径向最外点至第一胎圈填充料沿径向外侧延伸的最高点的径向距离；
第二胎圈填充料沿径向外侧延伸的部位的高度HL2定义为：从轮胎胎圈的径向最外点至第二胎圈填充料沿径向外侧延伸的最高点的径向距离；
第一胎圈填充料和第二填充料重叠复合区域的宽度W定义为：从重叠径向最内点至最外点的距离；
橡胶增强件定位径向内侧高度RH1定义为：当轮胎安装在轮辋上，轮胎胎圈钢丝的径向最内点所在水平面至橡胶增强件径向最内侧点的径向距离；
橡胶增强件定位径向内侧高度RH2定义为：当轮胎安装在轮辋上，轮胎胎圈钢丝的径向最内点所在水平面至橡胶增强件径向最外侧点的径向距离。
一种用于轻型载重车辆的胎圈，包括与安装轮辋相接触的胎圈钢丝40、通过围绕在环形的胎圈钢丝40上从而锚固在胎圈上的胎体增强件10和置于每个胎圈钢丝40的外侧且在胎体增强件10的卷曲空间内的胎圈填充料50，所述胎圈填充料50由第一胎圈填充料52和第二胎圈填充料51重叠复合形成，所述第一胎圈填充料52和第二胎圈填充料51均置于胎圈钢丝40的径向外侧,所述第一胎圈填充料52和第二胎圈填充料51均采用硫化状态下邵氏硬度不大于90的橡胶胶料,所述第一胎圈填充料52在径向延伸的厚度h2数值范围：0.1mm≤h2≤15mm，其轴向厚度呈渐变式，径向内侧厚度大于径向外侧厚度,所述第二胎圈填充料51在径向延伸的厚度h3数值范围：0.1mm≤h3≤15mm，其轴向厚度均匀分布,所述第一胎圈填充料52位于胎圈钢丝40径向外侧，且沿径向外侧延伸的部位的高度HL1数值范围：0mm＜HL1＜SH*70％，所述第二胎圈填充料51位于第一胎圈填充料52的径向外侧，且沿径向外侧延伸的部位的高度HL2数值范围：0mm＜HL2＜SH*70％，其中SH为轮胎的径向高度,所述第一胎圈填充料52和第二胎圈填充料51重叠复合区域的宽度W数值范围：0mm＜W＜20cm,通过对第一胎圈填充料52、第二胎圈填充料51的材质进行限制，提高第一胎圈填充料52和第二胎圈填充料51的低生热性能和高粘性模量特性，通过对第一胎圈填充料52和第二胎圈填充料51在径向延伸的厚度和高度范围进行限制，进一步提高第一胎圈填充料52和第二胎圈填充料51的低生热性能对胎圈与胎体增强件10因生热、 应力集中而导致脱层的影响。
还包括橡胶增强件60，所述橡胶增强件60置于胎体增强件10和胎侧30之间，所述橡胶增强件60沿周向形成，所述第一胎圈填充料52、第二胎圈填充料51和橡胶增强件60均采用低生热胶料材质,所述橡胶增强件60沿轮胎径向上延伸，所述橡胶增强件60采用硫化状态下邵氏硬度不大于86的橡胶胶料，所述橡胶增强件60的轴向厚度h1数值范围：0.1mm≤h1≤10mm，所述橡胶增强件60呈中部厚度大于两侧厚度的月牙型，所述橡胶增强件60的长度尺寸L1数值范围：0.1mm≤L1≤10mm,通过限制橡胶增强件60使用的材质和轴向厚度以及长度尺寸，提高橡胶增强件60的低生热性能，有助于减少胎圈部位的热量集中，提高轮胎在超负荷情况下胎圈部位的耐久性,橡胶增强件在胎体增强件10和胎侧30之间的安装定位尺寸为：径向内侧高度RH1数值范围是：0mm＜RH1≤20cm,径向外侧高度RH2数值范围是：0mm＜RH1≤20cm,通过对橡胶增强件60的定位尺寸进行限制，进一步提高橡胶增强件60的低生热性能对胎圈部位热量集中的抑制作用，从而提高轮胎在超负荷情况下胎圈部位的耐久性。
还包括胎圈约束增强件70，所述胎圈约束增强件70围绕在胎圈钢丝40上，且呈螺旋形覆盖缠绕在胎圈钢丝40上,通过设置胎圈约束增强件70，对胎圈钢丝40进行约束，提高胎圈钢丝40的强度，从而提高胎圈的整体强度。
通过设置胎圈填充料50，将第一胎圈填充料52、第二胎圈填充料51和橡胶增强件60的交合位置进行合理错位，使胎圈部位的应力进行分散，同时采用低生热胶料，可以减小胎圈部位的热量集中，提高轮胎在超负荷情况下胎圈部位的耐久性，尤其是提高胎圈与胎体增强件10应对因生热、应力集中而导致脱层的能力。
一种应用上述胎圈制造的轮胎，包括胎冠20、两个胎侧30和胎圈，所述胎冠20包括胎面橡胶层21和胎冠增强件22，所述胎冠增强件22由钢丝 和尼龙纤维沿轮胎周向形成，所述胎冠增强件22由胎面橡胶层21周向覆盖，所述胎侧30从胎圈径向向外延伸至胎冠20。
对比例：公知的185R14C规格的轮胎；
实验例：应用上述实施例的胎圈制造的轮胎；
表1：
部件名称 对比例 实验例
第一胎圈填充料 有 有(硬度为60-80)
第二胎圈填充料 无 有(硬度为60-80)
橡胶增强件 无 有(硬度＜86)
胎圈约束增强件 无 有
测试结果 100％ 150％
表2：
Figure PCTCN2020108668-appb-000001
对比实验：进行低速高载重走行机床进行对比实验，实验例走行成绩比对比例提升高达50％。
以上所述仅为本发明的较佳实施例，并不用以限制本发明，凡在本发明的精神和原则之内，所作的任何修改、等同替换、改进等，均应包含在本发明的保护范围之内。

Claims (10)

  1. 一种用于轻型载重车辆的胎圈，包括与安装轮辋相接触的胎圈钢丝、通过围绕在环形的胎圈钢丝上从而锚固在胎圈上的胎体增强件和置于每个胎圈钢丝的外侧且在胎体增强件的卷曲空间内的胎圈填充料，其特征在于：所述胎圈填充料由第一胎圈填充料和第二胎圈填充料重叠复合形成，所述第一胎圈填充料和第二胎圈填充料均置于胎圈钢丝的径向外侧，还包括橡胶增强件，所述橡胶增强件置于胎体增强件和胎侧之间，所述橡胶增强件沿周向形成，所述第一胎圈填充料、第二胎圈填充料和橡胶增强件均采用低生热胶料材质。
  2. 根据权利要求1所述的一种用于轻型载重车辆的胎圈，其特征在于：还包括胎圈约束增强件，所述胎圈约束增强件围绕在胎圈钢丝上，且呈螺旋形覆盖缠绕在胎圈钢丝上。
  3. 根据权利要求1所述的一种用于轻型载重车辆的胎圈，其特征在于：所述橡胶增强件沿轮胎径向上延伸，所述橡胶增强件采用硫化状态下邵氏硬度不大于86的橡胶胶料，所述橡胶增强件的轴向厚度h1数值范围：0.1mm≤h1≤10mm，所述橡胶增强件呈中部厚度大于两侧厚度的月牙型，所述橡胶增强件的长度尺寸L1数值范围：0.1mm≤L1≤10mm。
  4. 根据权利要求3所述的一种用于轻型载重车辆的胎圈，其特征在于：橡胶增强件在胎体增强件和胎侧之间的安装定位尺寸为：径向内侧高度RH1数值范围是：0mm＜RH1≤20cm,径向外侧高度RH2数值范围是：0mm＜RH1≤20cm。
  5. 根据权利要求1所述的一种用于轻型载重车辆的胎圈，其特征在于：所述第一胎圈填充料和第二胎圈填充料均采用硫化状态下邵氏硬度不大于90的橡胶胶料。
  6. 根据权利要求5所述的一种用于轻型载重车辆的胎圈，其特征在于：所述第一胎圈填充料在径向延伸的厚度h2数值范围：0.1mm≤h2≤15mm，其轴向厚度呈渐变式，径向内侧厚度大于径向外侧厚度。
  7. 根据权利要求5所述的一种用于轻型载重车辆的胎圈，其特征在于：所述第二胎圈填充料在径向延伸的厚度h3数值范围：0.1mm≤h3≤15mm，其轴向厚度均匀分布。
  8. 根据权利要求7所述的一种用于轻型载重车辆的胎圈，其特征在于：所述第一胎圈填充料位于胎圈钢丝径向外侧，且沿径向外侧延伸的部位的高度HL1数值范围：0mm＜HL1＜SH*70％，所述第二胎圈填充料位于第一胎圈填充料的径向外侧，且沿径向外侧延伸的部位的高度HL2数值范围：0mm＜HL2＜SH*70％，其中SH为轮胎的径向高度。
  9. 根据权利要求8所述的一种用于轻型载重车辆的胎圈，其特征在于：所述第一胎圈填充料和第二胎圈填充料重叠复合区域的宽度W数值范围：0mm＜W＜20cm。
  10. 一种应用权利要求1-9任一所述的胎圈制造的轮胎，其特征在于：包括胎冠、两个胎侧和胎圈，所述胎冠包括胎面橡胶层和胎冠增强件，所述胎冠增强件由钢丝和尼龙纤维沿轮胎周向形成，所述胎冠增强件由胎面橡胶层周向覆盖，所述胎侧从胎圈径向向外延伸至胎冠。
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