WO2019061959A1 - 一种轮胎结构及脚轮 - Google Patents

一种轮胎结构及脚轮 Download PDF

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Publication number
WO2019061959A1
WO2019061959A1 PCT/CN2018/073158 CN2018073158W WO2019061959A1 WO 2019061959 A1 WO2019061959 A1 WO 2019061959A1 CN 2018073158 W CN2018073158 W CN 2018073158W WO 2019061959 A1 WO2019061959 A1 WO 2019061959A1
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Prior art keywords
layer
hub shell
rib
tire structure
caster
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PCT/CN2018/073158
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English (en)
French (fr)
Inventor
刘卫国
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中山市奔点五金机械有限公司
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Publication of WO2019061959A1 publication Critical patent/WO2019061959A1/zh

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    • BPERFORMING OPERATIONS; TRANSPORTING
    • B60VEHICLES IN GENERAL
    • B60BVEHICLE WHEELS; CASTORS; AXLES FOR WHEELS OR CASTORS; INCREASING WHEEL ADHESION
    • B60B33/00Castors in general; Anti-clogging castors
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B60VEHICLES IN GENERAL
    • B60CVEHICLE TYRES; TYRE INFLATION; TYRE CHANGING; CONNECTING VALVES TO INFLATABLE ELASTIC BODIES IN GENERAL; DEVICES OR ARRANGEMENTS RELATED TO TYRES
    • B60C7/00Non-inflatable or solid tyres

Definitions

  • the invention belongs to the field of machinery, and in particular relates to a tire structure and a caster.
  • Polyurethane is an abbreviation for polyurethane, which is abbreviated as PU. It is a polymer material. Polyurethane is an emerging organic polymer material, which is known as the “fifth largest plastic” and is widely used in many fields of the national economy due to its excellent performance. Product applications include light industry, chemical, electronics, textile, medical, construction, building materials, automotive, defense, aerospace, aviation and so on.
  • the PU tread on the market is two layers inside and outside, the inner tube is high elastic and soft, and the Shore hardness is 70-80 shoreA.
  • the disadvantage is that the resistance is large when starting/rolling/rotating, and the advantage is that the ground protection, the shock absorption effect is good, and the noise is small.
  • the tire is low-elastic and has a Shore hardness of 89-95shoreA.
  • the disadvantage is that it has large damage to the ground, poor damping effect and high noise.
  • the advantage is that the resistance is small when starting/rolling/rotating.
  • a tire structure of the present invention includes:
  • the first PU layer has a Shore hardness of 70-80 shoreA
  • the first PU layer has an abrasion resistance of 42 to 45 mm;
  • the bounce elastic force of the first PU layer is 57%
  • the rolling resistance of the first PU layer is 1%
  • the tensile strength of the first PU layer is 40 N/mm 3 ;
  • the elongation at break of the first PU layer is 520%
  • the pressure deformation residual of the first PU layer is 15%;
  • the second PU layer has a Shore hardness of 89 to 95 shoreA
  • the wear resistance of the second PU layer is 35 to 41 mm;
  • the bounce elastic force of the second PU layer is 65%;
  • the rolling resistance of the second PU layer is 0.7%
  • the tensile strength of the second PU layer is 46 N/mm 3 ;
  • the elongation at break of the second PU layer is 625%
  • the pressure deformation residual of the second PU layer was 12%.
  • the second PU layer is sleeved on a periphery of the first PU layer.
  • the first PU layer is sleeved on a periphery of the second PU layer.
  • a third PU layer is further disposed between the first PU layer and the second PU layer;
  • the third PU layer has a Shore hardness of 89 to 95 shoreA
  • the wear resistance of the third PU layer is 39 to 45 mm;
  • the bounce elastic force of the third PU layer is 42%;
  • the rolling resistance of the third PU layer is 0.9%
  • the third PU layer has a tensile strength of 42 N/mm 3 ;
  • the third PU layer has an elongation at break of 510%
  • the pressure deformation residual of the third PU layer was 16%.
  • a third PU layer is further disposed on a periphery of the annular structure formed by the first PU layer and the second PU;
  • the third PU layer has a Shore hardness of 89 to 95 shoreA
  • the wear resistance of the third PU layer is 39 to 45 mm;
  • the bounce elastic force of the third PU layer is 42%;
  • the rolling resistance of the third PU layer is 0.9%
  • the third PU layer has a tensile strength of 42 N/mm 3 ;
  • the third PU layer has an elongation at break of 510%
  • the pressure deformation residual of the third PU layer was 16%.
  • the invention also provides a caster for mounting the above tire, comprising:
  • the wheel core being embedded in the tire structure and being in press contact with the tire;
  • the wheel core includes:
  • the outer shell is in press contact with the tire structure, and the inner layer is connected to the bearing 3 by the hub shell 2;
  • the ribs 11 and the ribs 12 are staggered in the hub shell 2;
  • One end of the male rib 11 is fixedly connected to the inner circumference of the hub shell 2, and the other end is fixed to the outer circumference of the hub shell 2;
  • One end of the rib 12 is fixedly connected to the inner circumference of the hub shell 2, and the other end is fixed to the outer circumference of the hub shell 2;
  • the outer shell is pressed into contact with the tire, and the inner shell and the bearing 3 are connected to the hub shell 2, the bearing 3, the staggered male rib 11 and the rib 12 in the hub shell 2;
  • One end of the male rib 11 is fixedly connected to the inner circumference of the hub shell 2, and the other end is fixed to the outer circumference of the hub shell 2;
  • One end of the rib 12 is fixed to the inner circumference of the hub shell 2, and the other end is fixed to the outer circumference of the hub shell 2.
  • Both the male rib 11 and the female rib 12 have connecting plates that are obtuse with each other.
  • the number of obtuse angles is not less than one.
  • the male rib 11 is an upward protruding structure of the connecting plates at an obtuse angle
  • the ridges 12 are recessed structures in which the connecting plates are obtusely angled downward.
  • Both the rib 11 and the ridge 12 are formed by stamping one plate.
  • the hub shell 2 is made of a metal material.
  • One end of the male rib 11 is die-casted with the inner circumference of the hub shell 2, and the other end is die-cast with the outer circumference of the hub shell 2;
  • One end of the ridge 12 is die-cast with the inner circumference of the hub shell 2, and the other end is die-cast with the outer circumference of the hub shell 2.
  • One end of the male rib 11 is die-casted from the inner circumference of the hub shell 2, and the other end is integrally formed with the outer circumference of the hub shell 2;
  • One end of the rib 12 is die-cast with the inner circumference of the hub shell 2, and the other end is integrally formed with the outer circumference of the hub shell 2.
  • the annular first PU layer and the second PU layer are connected to the inner casing
  • the first PU layer has a Shore hardness of 70-80 shoreA
  • the first PU layer has an abrasion resistance of 42 to 45 mm;
  • the bounce elastic force of the first PU layer is 57%
  • the rolling resistance of the first PU layer is 1%
  • the tensile strength of the first PU layer is 40 N/mm 3 ;
  • the elongation at break of the first PU layer is 520%
  • the pressure deformation residual of the first PU layer is 15%;
  • the second PU layer has a Shore hardness of 89 to 95 shoreA
  • the wear resistance of the second PU layer is 35 to 41 mm;
  • the bounce elastic force of the second PU layer is 65%;
  • the rolling resistance of the second PU layer is 0.7%
  • the tensile strength of the second PU layer is 46 N/mm 3 ;
  • the elongation at break of the second PU layer is 625%
  • the pressure deformation residual of the second PU layer is 12%;
  • the above-mentioned tire structure has the advantages of small rolling/rotation resistance, strong wear resistance and good shock absorption effect compared with the caster of the prior structure.
  • FIG. 1 is a schematic view of a caster according to an embodiment of the present invention.
  • Figure 2 is a cross-sectional view of Figure 1;
  • the first PU layer is sleeved on the periphery of the second PU layer
  • the first PU layer has a Shore hardness of 70-80 shoreA
  • the first PU layer has an abrasion resistance of 42 to 45 mm;
  • the bounce elastic force of the first PU layer is 57%
  • the rolling resistance of the first PU layer is 1%
  • the tensile strength of the first PU layer is 40 N/mm 3 ;
  • the elongation at break of the first PU layer is 520%
  • the pressure deformation residual of the first PU layer is 15%;
  • the second PU layer has a Shore hardness of 89 to 95 shoreA
  • the wear resistance of the second PU layer is 35 to 41 mm;
  • the bounce elastic force of the second PU layer is 65%;
  • the rolling resistance of the second PU layer is 0.7%
  • the tensile strength of the second PU layer is 46 N/mm 3 ;
  • the elongation at break of the second PU layer is 625%
  • the pressure deformation residual of the second PU layer was 12%.
  • the first embodiment of the tire structure has the advantages of small rolling resistance, strong wear resistance and good shock absorption effect.
  • the second PU layer is sleeved on the periphery of the first PU layer
  • the first PU layer has a Shore hardness of 70-80 shoreA
  • the first PU layer has an abrasion resistance of 42 to 45 mm;
  • the bounce elastic force of the first PU layer is 57%
  • the rolling resistance of the first PU layer is 1%
  • the tensile strength of the first PU layer is 40 N/mm 3 ;
  • the elongation at break of the first PU layer is 520%
  • the pressure deformation residual of the first PU layer is 15%;
  • the second PU layer has a Shore hardness of 89 to 95 shoreA
  • the wear resistance of the second PU layer is 35 to 41 mm;
  • the bounce elastic force of the second PU layer is 65%;
  • the rolling resistance of the second PU layer is 0.7%
  • the tensile strength of the second PU layer is 46 N/mm 3 ;
  • the elongation at break of the second PU layer is 625%
  • the pressure deformation residual of the second PU layer was 12%.
  • the second embodiment of the tire structure has a good mute effect, a good shock absorbing effect, and a good ground protection effect.
  • the third embodiment of the tire structure provided by the present invention is different from the foregoing embodiment in that it further includes a third PU layer;
  • the third PU layer has a Shore hardness of 89 to 95 shoreA
  • the wear resistance of the third PU layer is 39 to 45 mm;
  • the bounce elastic force of the third PU layer is 42%;
  • the rolling resistance of the third PU layer is 0.9%
  • the third PU layer has a tensile strength of 42 N/mm 3 ;
  • the third PU layer has an elongation at break of 510%
  • the pressure deformation residual of the third PU layer was 16%.
  • a third PU layer is further disposed between the first PU layer and the second PU layer;
  • a third PU layer is further disposed on a periphery of the annular structure formed by the first PU layer and the second PU;
  • the third embodiment of the tire structure further has the advantages of small rolling resistance, strong wear resistance, good shock absorbing effect and high load capacity.
  • the invention also provides a caster for mounting the above tire, comprising:
  • the wheel core being embedded in the tire structure and being in press contact with the tire;
  • the wheel core includes:
  • the outer shell is in press contact with the tire structure, and the inner layer is connected to the bearing 3 by the hub shell 2;
  • the ribs 11 and the ribs 12 are staggered in the hub shell 2;
  • One end of the male rib 11 is fixedly connected to the inner circumference of the hub shell 2, and the other end is fixed to the outer circumference of the hub shell 2;
  • One end of the rib 12 is fixed to the inner circumference of the hub shell 2, and the other end is fixed to the outer circumference of the hub shell 2.
  • the caster of the prior art mainly comprises a wheel core body and six slits, wherein three slits are uniformly disposed on the outer circumference of the front surface of the wheel core body, and the other three slits are uniformly disposed on the outer circumference of the back surface of the wheel core body.
  • the caster body of such a structure often has a wheel core crack due to insufficient rigidity or uneven strength distribution, and cannot meet the user's use requirements.
  • the invention provides a caster.
  • the caster body of the structure has a male and female ribs of the wheel core body, so that the strength distribution is uniform and the rigidity is enhanced, and the technical problem of the wheel core crack is effectively solved.
  • Both the male rib 11 and the female rib 12 have connecting plates that are obtuse with each other.
  • the number of obtuse angles is not less than one.
  • the male rib 11 is an upward protruding structure of the connecting plates at an obtuse angle
  • the ridges 12 are recessed structures in which the connecting plates are obtusely angled downward.
  • Both the rib 11 and the ridge 12 are formed by stamping one plate.
  • the hub shell 2 is made of a metal material.
  • One end of the male rib 11 is die-casted with the inner circumference of the hub shell 2, and the other end is die-cast with the outer circumference of the hub shell 2;
  • One end of the ridge 12 is die-cast with the inner circumference of the hub shell 2, and the other end is die-cast with the outer circumference of the hub shell 2.
  • One end of the male rib 11 is die-casted from the inner circumference of the hub shell 2, and the other end is integrally formed with the outer circumference of the hub shell 2;
  • One end of the rib 12 is die-cast with the inner circumference of the hub shell 2, and the other end is integrally formed with the outer circumference of the hub shell 2.
  • the wheel core can be made of iron, aluminum, plastic or the like.
  • the caster includes: a hub shell 2 in which an outer layer is pressed into contact with the tire, and an inner layer is connected with the bearing 3, and a bearing 3, a rib 11 and a rib 12 which are staggered in the hub shell 2; One end of the male rib 11 is fixedly connected to the inner circumference of the hub shell 2, and the other end is fixed to the outer circumference of the hub shell 2; one end of the rib 12 is fixedly connected to the inner circumference of the hub shell 2, The other end is fixed to the outer circumference of the hub shell 2.
  • the invention provides a caster.
  • the caster body of the structure has a male and female ribs of the wheel core body, so that the strength distribution is uniform and the rigidity is enhanced, and the technical problem of the wheel core crack is effectively solved.

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

Abstract

一种轮胎结构,包括:内外套接的环状的第一PU层和第二PU层;第一PU层的肖式硬度为70~80shoreA;第一PU层的耐磨性为42~45mm;第一PU层的回跳弹力为57%;第一PU层的滚动阻力为1%;第一PU层的抗拉强度为40N/mm3;第一PU层的断裂延伸率为520%;第一PU层的加压变形残余为15%;第二PU层的肖式硬度为89~95shoreA;第二PU层的耐磨性为35~41mm;第二PU层的回跳弹力为65%;第二PU层的滚动阻力为0.7%;第二PU层的抗拉强度为46N/mm3;第二PU层的断裂延伸率为62.5%;第二PU层的加压变形残余为12%。该轮胎结构具有滚动/转动阻力小,耐磨性强,减震效果好的有益效果。还涉及一种包括该轮胎结构的脚轮。

Description

一种轮胎结构及脚轮
本申请要求于2017年9月30日提交中国专利局、申请号为CN201710920278.4、发明名称为“一种轮胎结构及脚轮”的中国专利申请的优先权,其全部内容通过引用结合在本申请中。
技术领域
本发明属于机械领域,尤其涉及一种轮胎结构及脚轮。
背景技术
聚氨酯(PU,polyurethane)是聚氨基甲酸酯的简称,英文简称PU,它是一种高分子材料。聚氨酯是一种新兴的有机高分子材料,被誉为“第五大塑料”,因其卓越的性能而被广泛应用于国民经济众多领域。产品应用领域涉及轻工、化工、电子、纺织、医疗、建筑、建材、汽车、国防、航天、航空等。
目前市场上的PU胎面为内外两层,内胎高弹软,肖氏硬度为70-80shoreA,缺点是起动/滚动/转动时阻力大,优点是对地面保护,减震效果好,噪音小。外胎低弹硬,肖氏硬度为89-95shoreA,缺点是对地面伤害大,减震效果差,噪音大,优点是起动/滚动/转动时阻力小。
发明内容
本发明中一种轮胎结构包括:
内外套接的环状的第一PU层和第二PU层;
所述第一PU层的肖式硬度为70~80shoreA;
所述第一PU层的耐磨性为42~45mm;
所述第一PU层的回跳弹力为57%;
所述第一PU层的滚动阻力为1%;
所述第一PU层的抗拉强度为40N/mm 3
所述第一PU层的断裂延伸率为520%;
所述第一PU层的加压变形残余为15%;
所述第二PU层的肖式硬度为89~95shoreA;
所述第二PU层的耐磨性为35~41mm;
所述第二PU层的回跳弹力为65%;
所述第二PU层的滚动阻力为0.7%;
所述第二PU层的抗拉强度为46N/mm 3
所述第二PU层的断裂延伸率为625%;
所述第二PU层的加压变形残余为12%。
可选的,
所述第二PU层套接在所述第一PU层的外围。
可选的,
所述第一PU层套接在所述第二PU层的外围。
可选的,
所述第一PU层和第二PU层之间还设有第三PU层;
所述第三PU层的肖式硬度为89~95shoreA;
所述第三PU层的耐磨性为39~45mm;
所述第三PU层的回跳弹力为42%;
所述第三PU层的滚动阻力为0.9%;
所述第三PU层的抗拉强度为42N/mm 3
所述第三PU层的断裂延伸率为510%;
所述第三PU层的加压变形残余为16%。
可选的,
所述第一PU层和第二PU构成的环状结构的外围还设有第三PU层;
所述第三PU层的肖式硬度为89~95shoreA;
所述第三PU层的耐磨性为39~45mm;
所述第三PU层的回跳弹力为42%;
所述第三PU层的滚动阻力为0.9%;
所述第三PU层的抗拉强度为42N/mm 3
所述第三PU层的断裂延伸率为510%;
所述第三PU层的加压变形残余为16%。
本发明还提供了一种安装上述轮胎的脚轮,包括:
轮芯,所述轮芯嵌入所述轮胎结构内,且与所述轮胎挤压接触;
所述轮芯包括:
外层与所述轮胎结构挤压接触,且内层与轴承3过盈连接的轮毂壳2;
轴承3;
所述轮毂壳2内交错排列的阳筋11和阴筋12;
所述阳筋11的一端与所述轮毂壳2的内圆周固连,另一端与所述轮毂壳2的外圆周固连;
所述阴筋12的一端与所述轮毂壳2的内圆周固连,另一端与所述轮毂壳2的外圆周固连;
可选的,
外层与轮胎挤压接触,且内层与轴承3过盈连接的轮毂壳2、轴承3、轮毂壳2内交错排列的阳筋11和阴筋12;
所述阳筋11的一端与所述轮毂壳2的内圆周固连,另一端与所述轮毂壳2的外圆周固连;
所述阴筋12的一端与所述轮毂壳2的内圆周固连,另一端与所述轮毂壳2的外圆周固连。
可选的,
所述阳筋11和阴筋12均具有互成钝角的连接板。
可选的,
所述钝角个数不少于1个。
可选的,
所述阳筋11为连接板互成钝角向上突起结构;
所述阴筋12为连接板互成钝角向下凹陷结构。
可选的,
阳筋11和阴筋12均由一块板体冲压形成。
可选的,
轮毂壳2为金属材料制成。
可选的,
阳筋11的一端与所述轮毂壳2的内圆周压铸成型,另一端与所述轮毂壳2的外圆周压铸成型;
阴筋12的一端与所述轮毂壳2的内圆周压铸成型,另一端与所述轮毂壳2的外圆周压铸成型。
可选的,
阳筋11的一端与所述轮毂壳2的内圆周压铸成型,另一端与所述轮毂壳2的外圆周一体成型;
所述阴筋12的一端与所述轮毂壳2的内圆周压铸成型,另一端与所述轮毂壳2的外圆周一体成型。
从以上技术方案可以看出,本发明实施例具体有以下优点:
本发明实施例中,内外套接的环状的第一PU层和第二PU层;
所述第一PU层的肖式硬度为70~80shoreA;
所述第一PU层的耐磨性为42~45mm;
所述第一PU层的回跳弹力为57%;
所述第一PU层的滚动阻力为1%;
所述第一PU层的抗拉强度为40N/mm 3
所述第一PU层的断裂延伸率为520%;
所述第一PU层的加压变形残余为15%;
所述第二PU层的肖式硬度为89~95shoreA;
所述第二PU层的耐磨性为35~41mm;
所述第二PU层的回跳弹力为65%;
所述第二PU层的滚动阻力为0.7%;
所述第二PU层的抗拉强度为46N/mm 3
所述第二PU层的断裂延伸率为625%;
所述第二PU层的加压变形残余为12%;
由此可见,上述的轮胎结构相对现有结构的脚轮,具有滚动/转动阻力小,耐磨性强,减震效果好的有益效果。
附图说明
图1为本发明实施例中一种脚轮示意图;
图2为图1的剖视图;
11、阳筋;12、阴筋;2、轮毂壳;3、轴承。
具体实施方式
本发明提供的轮胎结构第一实施例包括:
本发明提供的轮胎结构第一实施例包括:
第一PU层套接在第二PU层外围;
所述第一PU层的肖式硬度为70~80shoreA;
所述第一PU层的耐磨性为42~45mm;
所述第一PU层的回跳弹力为57%;
所述第一PU层的滚动阻力为1%;
所述第一PU层的抗拉强度为40N/mm 3
所述第一PU层的断裂延伸率为520%;
所述第一PU层的加压变形残余为15%;
所述第二PU层的肖式硬度为89~95shoreA;
所述第二PU层的耐磨性为35~41mm;
所述第二PU层的回跳弹力为65%;
所述第二PU层的滚动阻力为0.7%;
所述第二PU层的抗拉强度为46N/mm 3
所述第二PU层的断裂延伸率为625%;
所述第二PU层的加压变形残余为12%。
所述轮胎结构的第一实施例相对现有结构的脚轮,具有滚动阻力小,耐磨性强,减震效果好的有益效果。
本发明提供的轮胎结构第二实施例包括:
第二PU层套接在第一PU层外围;
所述第一PU层的肖式硬度为70~80shoreA;
所述第一PU层的耐磨性为42~45mm;
所述第一PU层的回跳弹力为57%;
所述第一PU层的滚动阻力为1%;
所述第一PU层的抗拉强度为40N/mm 3
所述第一PU层的断裂延伸率为520%;
所述第一PU层的加压变形残余为15%;
所述第二PU层的肖式硬度为89~95shoreA;
所述第二PU层的耐磨性为35~41mm;
所述第二PU层的回跳弹力为65%;
所述第二PU层的滚动阻力为0.7%;
所述第二PU层的抗拉强度为46N/mm 3
所述第二PU层的断裂延伸率为625%;
所述第二PU层的加压变形残余为12%。
所述轮胎结构的第二实施例相对现有结构的脚轮,具有静音效果好,减震效果好,地面保护好的有益效果。
本发明提供的轮胎结构第三实施例与前述实施例不同在于,还包括第三PU层;
所述第三PU层的肖式硬度为89~95shoreA;
所述第三PU层的耐磨性为39~45mm;
所述第三PU层的回跳弹力为42%;
所述第三PU层的滚动阻力为0.9%;
所述第三PU层的抗拉强度为42N/mm 3
所述第三PU层的断裂延伸率为510%;
所述第三PU层的加压变形残余为16%。
所述第一PU层和第二PU层之间还设有第三PU层;
或者,
所述第一PU层和第二PU构成的环状结构的外围还设有第三PU层;
所述轮胎结构的第三实施例相对前述实施例,还具有滚动阻力小,耐磨性强,减震效果好,载重性高的有益效果。
本发明还提供了一种安装上述轮胎的脚轮,包括:
轮芯,所述轮芯嵌入所述轮胎结构内,且与所述轮胎挤压接触;
所述轮芯包括:
外层与所述轮胎结构挤压接触,且内层与轴承3过盈连接的轮毂壳2;
轴承3;
所述轮毂壳2内交错排列的阳筋11和阴筋12;
所述阳筋11的一端与所述轮毂壳2的内圆周固连,另一端与所述轮毂壳2的外圆周固连;
所述阴筋12的一端与所述轮毂壳2的内圆周固连,另一端与所述轮毂壳2的外圆周固连。
现有技术的脚轮主要包括轮芯体和六个切口,其中三个切口均匀地设在轮芯体正面的外圆周上,另外三个切口均匀地设置在轮芯体背面的外圆周上。而实际生产和使用过程中,这样结构的脚轮,其轮芯体往往因为刚性不足或强度分布不均匀导致出现轮芯体裂,不能满足使用者的使用需求。
本发明提供了一种脚轮,这样结构的脚轮,其轮芯体的轮毂壳具有阴阳筋,从而强度分布均匀,刚性增强,有效解决轮芯体裂的技术问题。
本发明提供的一种脚轮实施例进一步包括:
所述阳筋11和阴筋12均具有互成钝角的连接板。
本发明提供的一种脚轮实施例进一步包括:
所述钝角个数不少于1个。
本发明提供的一种脚轮实施例进一步包括:
所述阳筋11为连接板互成钝角向上突起结构;
所述阴筋12为连接板互成钝角向下凹陷结构。
本发明提供的一种脚轮实施例进一步包括:
阳筋11和阴筋12均由一块板体冲压形成。
本发明提供的一种脚轮实施例进一步包括:
轮毂壳2为金属材料制成。
本发明提供的一种脚轮实施例进一步包括:
阳筋11的一端与所述轮毂壳2的内圆周压铸成型,另一端与所述轮毂壳2的外圆周压铸成型;
阴筋12的一端与所述轮毂壳2的内圆周压铸成型,另一端与所述轮毂壳2的外圆周压铸成型。
本发明提供的一种脚轮实施例进一步包括:
阳筋11的一端与所述轮毂壳2的内圆周压铸成型,另一端与所述轮毂壳2的外圆周一体成型;
所述阴筋12的一端与所述轮毂壳2的内圆周压铸成型,另一端与所述轮毂壳2的外圆周一体成型。
需要说明的是轮芯可以是铁,铝,塑料等材料。
本发明实施例中脚轮包括:外层与轮胎挤压接触、且内层与轴承3过盈连接的轮毂壳2,轴承3,轮毂壳2内交错排列的阳筋11和阴筋12;所述阳筋11的一端与所述轮毂壳2的内圆周固连,另一端与所述轮毂壳2的外圆周固连;所述阴筋12的一端与所述轮毂壳2的内圆周固连,另一端与所述轮毂壳2的外圆周固连。本发明提供了一种脚轮,这样结构的脚轮,其轮芯体的轮毂壳具有阴阳筋,从而强度分布均匀,刚性增强,有效解决轮芯体裂的技术问题。
以上对本发明所提供的轮胎结构及脚轮的具体实施方式进行了说明,对于本领域的一般技术人员,依据本发明实施例的思想,在具体实施方式及应用范围上均会有改变之处,综上所述,本说明书内容不应理解为对本发明的限制。

Claims (13)

  1. 一种轮胎结构,其特征在于,包括:
    内外套接的环状的第一PU层和第二PU层;
    所述第一PU层的肖式硬度为70~80shoreA;
    所述第一PU层的耐磨性为42~45mm;
    所述第一PU层的回跳弹力为57%;
    所述第一PU层的滚动阻力为1%;
    所述第一PU层的抗拉强度为40N/mm3;
    所述第一PU层的断裂延伸率为520%;
    所述第一PU层的加压变形残余为15%;
    所述第二PU层的肖式硬度为89~95shoreA;
    所述第二PU层的耐磨性为35~41mm;
    所述第二PU层的回跳弹力为65%;
    所述第二PU层的滚动阻力为0.7%;
    所述第二PU层的抗拉强度为46N/mm3;
    所述第二PU层的断裂延伸率为625%;
    所述第二PU层的加压变形残余为12%。
  2. 根据权利要求1所述的轮胎结构,其特征在于,
    所述第二PU层套接在所述第一PU层的外围。
  3. 根据权利要求1所述的轮胎结构,其特征在于,
    所述第一PU层套接在所述第二PU层的外围。
  4. 根据权利要求1-3中任一项所述的轮胎结构,其特征在于,
    所述第一PU层和第二PU层之间还设有第三PU层;
    所述第三PU层的肖式硬度为89~95shoreA;
    所述第三PU层的耐磨性为39~45mm;
    所述第三PU层的回跳弹力为42%;
    所述第三PU层的滚动阻力为0.9%;
    所述第三PU层的抗拉强度为42N/mm3;
    所述第三PU层的断裂延伸率为510%;
    所述第三PU层的加压变形残余为16%。
  5. 根据权利要求1-3中任一项所述的轮胎结构,其特征在于,
    所述第一PU层和第二PU构成的环状结构的外围还设有第三PU层;
    所述第三PU层的肖式硬度为89~95shoreA;
    所述第三PU层的耐磨性为39~45mm;
    所述第三PU层的回跳弹力为42%;
    所述第三PU层的滚动阻力为0.9%;
    所述第三PU层的抗拉强度为42N/mm3;
    所述第三PU层的断裂延伸率为510%;
    所述第三PU层的加压变形残余为16%。
  6. 一种安装权利要求1-5中任一项所述轮胎结构的脚轮,其特征在于,还包括轮芯,所述轮芯嵌入所述轮胎结构内,且与所述轮胎挤压接触;
    所述轮芯包括:
    外层与所述轮胎结构挤压接触,且内层与轴承(3)过盈连接的轮毂壳(2);
    轴承(3);
    所述轮毂壳(2)内交错排列的阳筋(11)和阴筋(12);
    所述阳筋(11)的一端与所述轮毂壳(2)的内圆周固连,另一端与所述轮毂壳(2)的外圆周固连;
    所述阴筋(12)的一端与所述轮毂壳(2)的内圆周固连,另一端与所述轮毂壳(2)的外圆周固连。
  7. 根据权利要求6所述的脚轮,其特征在于,
    所述阳筋(11)和阴筋(12)均具有互成钝角的连接板。
  8. 根据权利要求7所述的脚轮,其特征在于,
    所述钝角个数不少于1个。
  9. 根据权利要求7所述的脚轮,其特征在于,
    所述阳筋(11)为连接板互成钝角向上突起结构;
    所述阴筋(12)为连接板互成钝角向下凹陷结构。
  10. 根据权利要求6所述的脚轮,其特征在于,
    所述阳筋(11)和阴筋(12)均由一块板体冲压形成。
  11. 根据权利要求6所述的脚轮,其特征在于,
    所述轮毂壳(2)为金属材料制成。
  12. 根据权利要求6所述的脚轮,其特征在于,
    所述阳筋(11)的一端与所述轮毂壳(2)的内圆周压铸成型,另一端与所述轮毂壳(2)的外圆周压铸成型;
    所述阴筋(12)的一端与所述轮毂壳(2)的内圆周压铸成型,另一端与所述轮毂壳(2)的外圆周压铸成型。
  13. 根据权利要求6所述的脚轮,其特征在于,
    所述阳筋(11)的一端与所述轮毂壳(2)的内圆周压铸成型,另一端与所述轮毂壳(2)的外圆周一体成型;
    所述阴筋(12)的一端与所述轮毂壳(2)的内圆周压铸成型,另一端与所述轮毂壳(2)的外圆周一体成型。
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