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Inflation-free solid tire

A solid tire and air-free technology, which is applied in the direction of non-pneumatic tires, special tires, tire parts, etc., can solve the problem of not being wear-resistant but has good and suitable elastic polyurethane body, poor control of polyurethane production process, increased process and cost and other issues, to achieve the effect of saving resources, convenient application and use, and light weight

Inactive Publication Date: 2017-09-26
NINGBO GMF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] At present, air-free tires are mainly made of polyurethane materials. Due to the poor control of the polyurethane production process, a polyurethane body that is both wear-resistant and has good elasticity is not obtained. Therefore, it is necessary to add other components to the tire to enhance the resistance. load capacity, or carve a hollow structure on the tire to reduce the hardness, which will increase the process and cost

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0031] The inner molding chamber of the tire mold is filled with supercritical carbon dioxide foam to obtain a density of 0.16g / cm 3 Polyester thermoplastic polyurethane foamed particles, close the mold, pass high-temperature steam of 0.2MPa and 150°C, heat and shape for 3 minutes, then pour in condensed water to cool and dry to shape, and finally obtain a non-inflatable solid tire core; The tire core is installed inside the existing rubber tire; finally, the assembled tire is installed on the rim with tools, so as not to inflate the solid tire.

Embodiment 2

[0033] The inner molding chamber of the tire mold is filled with supercritical carbon dioxide foam to obtain a density of 0.23g / cm 3 The polyether-type thermoplastic polyurethane foamed particles, closed the mold, passed the high temperature steam of 0.2MPa and 150°C, kept the shape for 3 minutes, then passed the condensed water to cool and dry to shape, and finally obtained the non-inflatable solid tire core; The tire core is installed inside the existing rubber tire; finally, the assembled tire is installed on the rim with tools, so as not to inflate the solid tire.

Embodiment 3

[0035] The inner molding chamber of the tire mold is filled with supercritical carbon dioxide foam to obtain a density of 0.14g / cm 3 Polyester thermoplastic polyurethane foamed particles, close the mold, pass high-temperature steam of 0.2MPa and 150°C, heat and shape for 3 minutes, then pour in condensed water to cool and dry to shape, and finally obtain a non-inflatable solid tire core; The tire core is installed inside the existing rubber tire; finally, the assembled tire is installed on the rim with tools, so as not to inflate the solid tire.

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Abstract

The invention relates to a tire, particularly relates to an inflation-free solid tire, and belongs to the technical field of tires. The inflation-free solid tire comprises an inflation-free solid tire core, a rubber cover tire and a rim, the inflation-free solid tire core and the rubber cover tire are fixed on the rim after being assembled, and the inflation-free solid tire core is prepared from a thermoplastic polyurethane foaming material through compression molding, wherein the thermoplastic polyurethane foaming material is prepared through supercritical carbon dioxide foaming. The inflation-free solid tire core prepared from the thermoplastic polyurethane foaming material has the advantages of light weight, high elasticity and high stability, the wear resistance of the rubber cover tire is combined, and a more comfortable experience of the inflation-free solid tire is achieved.

Description

technical field [0001] The invention relates to a tire, in particular to a non-pneumatic solid tire, and belongs to the technical field of tires. Background technique [0002] Traditional tires all have inner tubes, which are prone to the danger of tube bursting during vehicle driving. Traditional tires are also easily punctured or punctured by sharp objects such as glass and nails, resulting in dangerous accidents. Regularly inflating, it is more troublesome to use. Traditional all-rubber solid tires will age and crack after long-term riding, and the riding comfort is very poor. Therefore, it is very necessary to develop a new type of solid tire with good elasticity, good stability and good performance. [0003] Pneumatic tires have attracted more and more attention since their appearance in the 1820s. Early air-free tires were mainly solid tires and had a wide range of applications in heavy industry, mainly installed on forklifts or forklifts that handled or transported...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B60C7/00B60C1/00B29D30/02B29C43/52B29C43/58B29K75/00
CPCB60C7/00B29C43/52B29C43/58B29C2043/5808B29C2043/5816B29D30/02B29K2075/00B60C1/00B60C2001/0091
Inventor 秦柳田晓莉许袁张聪
Owner NINGBO GMF TECH
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