CN219618853U - Asymmetric low-noise self-repairing tire - Google Patents
Asymmetric low-noise self-repairing tire Download PDFInfo
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- CN219618853U CN219618853U CN202320620606.XU CN202320620606U CN219618853U CN 219618853 U CN219618853 U CN 219618853U CN 202320620606 U CN202320620606 U CN 202320620606U CN 219618853 U CN219618853 U CN 219618853U
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/80—Technologies aiming to reduce greenhouse gasses emissions common to all road transportation technologies
- Y02T10/86—Optimisation of rolling resistance, e.g. weight reduction
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Abstract
The utility model provides an asymmetric low-noise self-repairing tire, which belongs to the technical field of tires and comprises a tire body, mute cotton and self-sealing glue, wherein the mute cotton is adhered with the tire body through the self-sealing glue, the tire tread pattern is of an asymmetric structure, the outer side sea Liu Bi of the tire tread pattern is larger than the inner side sea Liu Bi of the tire tread pattern, and the difference of the outer side sea Liu Bi of the tire tread pattern is 2.5% -4.5%; the thickness of the self-sealing glue is 20% -30% of the depth of the main groove of the tread pattern of the tire, and the width of the self-sealing glue is 80% -90% of the nominal section width of the tire. The utility model has the characteristics of improving the uniformity and dynamic balance performance of the asymmetric pattern design tire and reducing the noise of the tire.
Description
Technical Field
The utility model belongs to the technical field of tires, and particularly relates to an asymmetric low-noise self-repairing tire.
Background
In recent years, the electric automobile industry has been actively developed, the sales and market share of electric automobiles are continuously improved, and due to the characteristics of electric automobiles, a spare tire-free design is generally adopted, and if tires are pricked during driving, driving sustainability is poor.
At present, in order to solve the above problems of the electric automobile tire, a layer of sealant is usually attached to the crown part. The tire is characterized in that the sealant is attached to the middle part of the tire tread, and the shape, the material and the weight of the sealant are distributed symmetrically left and right on the center line of the tire tread. However, in the case of the tire of the asymmetric pattern design, after the tire is attached with the sealant, the uniformity and dynamic balance performance of the tire become low due to the increase in weight of the tread portion, and the noise of the tire becomes large due to the increase in rigidity of the tread.
Disclosure of Invention
The utility model provides an asymmetric low-noise self-repairing tire, which solves the technical problems that after the tire with asymmetric pattern design of the existing electric automobile is attached with sealant, the uniformity and dynamic balance performance of the tire are low, and the noise of the tire is high.
The utility model discloses an asymmetric low-noise self-repairing tire, which comprises a tire body, silent cotton and self-sealing glue, wherein the silent cotton is adhered with the tire body through the self-sealing glue, the tire tread pattern is of an asymmetric structure, the outer side sea Liu Bi of the tire tread pattern is larger than the inner side sea Liu Bi of the tire tread pattern, and the difference of the outer side sea Liu Bi of the tire tread pattern is 2.5% -4.5%; the thickness of the self-sealing glue is 20% -30% of the depth of the main groove of the tread pattern of the tire, and the width of the self-sealing glue is 80% -90% of the nominal section width of the tire.
In some of these embodiments, the tire tread outer mass is greater than the inner mass, the tire tread outer inner mass difference m1=m1×a in g, where M1 is the tread weight and a is the tire tread pattern outer inner sea Liu Bi difference.
In some embodiments, the silent cotton is located in the middle of the tread, the radial center line of the silent cotton coincides with the radial center line of the tread, the silent cotton includes an outer silent cotton and an inner silent cotton, and the mass of the outer silent cotton is smaller than that of the inner silent cotton, and the mass difference m2=m2×a between the inner and outer sides of the silent cotton is given in g, where M2 is the total weight of the silent cotton, and a is the difference between the outer and inner sides Liu Bi of the tread pattern.
In some embodiments, the self-sealing glue is located in the middle of the tread, the radial center line of the self-sealing glue coincides with the radial center line of the tread, the self-sealing glue comprises an outer self-sealing glue and an inner self-sealing glue, the mass of the outer self-sealing glue is smaller than that of the inner self-sealing glue, the mass difference m3=m3×a between the inner side and the outer side of the self-sealing glue is given in g, M3 is the total weight of the self-sealing glue, and a is the difference between the outer side and the inner side of the tread pattern Liu Bi of the tire.
In some of these embodiments, the difference m1 in mass of the outer and inner sides of the tread of the tire, the difference m2 in mass of the inner and outer sides of the silence, and the difference m3 in mass of the inner and outer sides of the self-sealing rubber satisfy m2+m3=m1 in g.
In some embodiments, the width and thickness of the outer and inner silence cotton are equal.
In some embodiments, the width and thickness of the outer self-sealing glue and the inner self-sealing glue are equal.
In some embodiments, the width of the outer self-sealing adhesive is equal to the width of the outer silence cotton, and the width of the inner self-sealing adhesive is equal to the width of the inner silence cotton.
In some of these embodiments, the self-sealing glue has a density of 1.25g/cm 3 -1.45g/cm 3 The tensile strength is 1.8Mpa-2.3Mpa, and the elongation at break is 400% -600%.
Compared with the prior art, the utility model has the beneficial effects that: the asymmetric low-noise self-repairing tire has the characteristics of improving the uniformity and dynamic balance performance of an asymmetric pattern design tire and reducing the noise of the tire. The self-sealing adhesive is set to 80% -90% of the nominal section width of the tire, so that the self-sealing adhesive can be ensured to cover the tread part of the tire; the thickness of the self-sealing glue is set to be 20% -30% of the depth of the main groove of the tread pattern of the tire, so that on one hand, the rigidity of the longitudinal groove part can be improved, the cavity is prevented from becoming large, on the other hand, enough self-sealing glue can be ensured to flow to the cavity position, and the air tightness of the tire is ensured; the sum of the masses of the outer mute cotton and the outer self-sealing glue is smaller than the sum of the masses of the outer mute cotton and the inner self-sealing glue, and the difference is the difference of the masses of the outer side and the inner side of the tire tread, so that the mass difference of the inner side and the outer side of the tire tread can be balanced, and the uniformity and dynamic balance performance of the tire can be improved; the width of the outside self-sealing glue is equal to that of the outside mute cotton, and the width of the inside self-sealing glue is equal to that of the inside mute cotton, so that the mute cotton can cover the self-sealing glue, and the effect of reducing the overall noise of the tire is achieved.
Drawings
The accompanying drawings, which are included to provide a further understanding of the utility model and are incorporated in and constitute a part of this specification, illustrate embodiments of the utility model and together with the description serve to explain the utility model and do not constitute a limitation on the utility model. In the drawings:
FIG. 1 is a schematic diagram of an asymmetric low noise self-repairing tire according to an embodiment of the present utility model;
FIG. 2 is a schematic diagram showing the results of a comparative test of dynamic balance before and after attaching a mute cotton and a self-repairing adhesive to a tire;
FIG. 3 is a schematic diagram of the RFV comparison test results before and after the tire is attached with the mute cotton and the self-repairing adhesive;
in the accompanying drawings: 100. the tire comprises a tire body, 210, an outer mute cotton, 220, an inner mute cotton, 310, an outer self-sealing adhesive, 320 and an inner self-sealing adhesive.
Detailed Description
The present utility model will be described and illustrated with reference to the accompanying drawings and examples in order to make the objects, technical solutions and advantages of the present utility model more apparent. In this specification, references to "a," "an," "the," and similar terms do not denote a limitation of quantity, but rather denote the singular or plural. The terms "comprising," "including," "having," and any variations thereof, are intended to cover a non-exclusive inclusion.
The embodiment of the utility model provides an asymmetric low-noise self-repairing tire, which can improve the uniformity and dynamic balance performance of a tire with an asymmetric structural pattern and reduce the noise of the tire. FIG. 1 is a schematic diagram of an asymmetric low noise self-repairing tire according to an embodiment of the present utility model. Referring to fig. 1, the asymmetric low noise self-repairing tire includes: the tire body 100, silence cotton and self-sealing glue, silence cotton is in the same place with tire body 100 bonding through self-sealing glue. The asymmetric low-noise self-repairing tire has the advantages that the rigidity of the tire is increased and the pattern grounding noise of the tire tread is increased due to the self-sealing glue at the tire tread, and the vibration noise generated in the tire inside can be absorbed by the arrangement of the mute cotton, so that the overall noise of the tire is reduced. In the embodiment of the utility model, the tread of the tire body is of an asymmetric pattern design, the outer side sea Liu Bi of the tire tread pattern is larger than the inner side sea Liu Bi of the tire tread pattern, and the difference a between the outer side sea Liu Bi of the tire tread pattern is 2.5% -4.5%; the tire tread outer side mass is greater than the tire tread inner side mass, and the tire tread outer side mass difference m1=m1×a, in g, where M1 is the tread weight and a is the tire tread pattern outer side sea Liu Bi difference. The mute cotton is positioned in the middle of the tread, the radial central line of the mute cotton is coincident with the radial central line CL of the tread of the tire, the mute cotton consists of an outer mute cotton 210 and an inner mute cotton 220, the widths of the outer mute cotton 210 and the inner mute cotton 220 are the same, and the thicknesses of the outer mute cotton 210 and the inner mute cotton 220 are the same; the mass of the outer silent cotton 210 is smaller than that of the inner silent cotton 220, and the mass difference M2 = M2 x a between the inner and outer sides of the silent cotton is given in g, where M2 is the total weight of the silent cotton and a is the difference between the outer and inner sides Liu Bi of the tread pattern of the tire. The self-sealing glue is positioned in the middle of the tread, the radial center line of the self-sealing glue coincides with the radial center line CL of the tread, the self-sealing glue consists of an outer self-sealing glue 310 and an inner self-sealing glue 320, the widths of the outer self-sealing glue 310 and the inner self-sealing glue 320 are the same, and the thicknesses of the outer self-sealing glue 310 and the inner self-sealing glue 320 are the same; the mass of the outer self-sealing glue 310 is smaller than that of the inner self-sealing glue 320, and the mass difference M3 = M3 x a between the inner side and the outer side of the self-sealing glue is given in g, wherein M3 is the total weight of the self-sealing glue, and a is the difference between the outer side and the inner side of the tread pattern of the tire Liu Bi. The mass difference m1 at the outer side and the mass difference m2 at the inner side of the mute cotton and the mass difference m3 at the inner side and the outer side of the self-sealing rubber meet m2+m3=m1, and the unit is g. The asymmetric low-noise self-repairing tire of the utility model has the advantages that the sum of the masses of the outer mute cotton 210 and the outer self-sealing glue 310 of the tire is smaller than the sum of the masses of the inner mute cotton 220 and the inner self-sealing glue 320, the difference value is m1, the unit is g, and the design can balance the mass difference between the inner side and the outer side of the tread of the tire and improve the uniformity and dynamic balance performance of the tire. In order to reduce the overall noise of the tire, the mute cotton needs to cover the self-sealing glue, and the width of the outer self-sealing glue 310 is equal to the width of the outer mute cotton 210, and the width of the inner self-sealing glue 320 is equal to the width of the inner mute cotton 220.
And pattern ofCompared with the thickness of the material at the position of the tire longitudinal groove, when the tire runs, the vibration frequency of the longitudinal groove is about 900Hz-2000Hz, if nails are penetrated from the longitudinal groove, the holes at the penetrated position are easy to gradually become larger under high-frequency vibration, the thickness of the self-sealing glue is set to be 20-30% of the depth of the main groove of the tread pattern of the tire, the thicker self-sealing glue can improve the rigidity of the longitudinal groove part on one hand, avoid the hole from becoming larger, and ensure that enough self-sealing glue flows to the hole position on the other hand, and ensure the air tightness of the tire; because the position where the nail penetrates is basically positioned at the tread part when the tire runs, the width of the self-sealing rubber is set to be 80-90% of the nominal section width of the tire, and the self-sealing rubber can be ensured to cover the tread part of the tire. In a preferred embodiment, the self-sealing glue has a density of 1.25g/cm 3 -1.45g/cm 3 The tensile strength is 1.8Mpa-2.3Mpa, the elongation at break is 400% -600%, and the surface drying time is 11min-15min.
Performance testing
According to the test standard GBT 18697-2002' method for measuring noise in an acoustic automobile, noise comparison tests are carried out on an automobile attached with front and rear tires of a mute cotton under the conditions of 60km/h, 80km/h and 100km/h respectively, wherein the model of the tested tire is 215/55R17 94V, the Cavity peak value is the maximum value MAX of a test result in a frequency range of 200-250Hz in the test process, the Cavity effective value is the root mean square value RMS of the test result in the frequency range of 200-250Hz in the test process, and the specific test result is shown in Table 1.
Table 1 test table for noise contrast of front and rear tyre of attached silence cotton
From the above, the asymmetric low-noise self-repairing tire adopting the technical scheme of the utility model obviously reduces the noise of the tire compared with the tire without the silence cotton.
Carrying out dynamic balance and RFV tests on the tires before and after the mute cotton and the self-sealing glue are attached, wherein the model of the tested tire is 215/55R17 94V, fig. 2 is a schematic diagram of a dynamic balance comparison test result, and according to the dynamic balance comparison test result of fig. 2, the dynamic balance data of the tire after the mute cotton and the self-sealing glue are attached is reduced, and the dynamic balance performance is improved; FIG. 3 is a schematic view of the RFV comparison test result, according to the RFV comparison test result of FIG. 3, the RFV data of the tire is reduced after the mute cotton and the self-sealing glue are attached, and the RFV performance is improved. In conclusion, the uniformity and dynamic balance performance of the tire with the asymmetric pattern design are improved by adopting the tire with the technical scheme of the utility model.
The above examples merely represent a few embodiments of the present utility model, and it should be noted that it is possible for a person skilled in the art to make several variations and modifications without departing from the scope of the present utility model.
Claims (9)
1. An asymmetric low noise self-repairing tire, characterized in that: the tire comprises a tire body, mute cotton and self-sealing glue, wherein the mute cotton is adhered with the tire body through the self-sealing glue, the tire tread pattern is of an asymmetric structure, the outer side sea Liu Bi of the tire tread pattern is larger than the inner side sea Liu Bi of the tire tread pattern, and the difference of the outer side sea Liu Bi of the tire tread pattern is 2.5% -4.5%; the thickness of the self-sealing glue is 20% -30% of the depth of the main groove of the tread pattern of the tire, and the width of the self-sealing glue is 80% -90% of the nominal section width of the tire.
2. The asymmetric low noise self-repairing tire of claim 1, wherein: the outer mass of the tire tread is greater than the inner mass, and the outer mass difference m1=m1×a of the tire tread is given in g, wherein M1 is the tread weight and a is the outer sea Liu Bi difference of the tire tread pattern.
3. The asymmetric low noise self-repairing tire of claim 2, wherein: the silence cotton is located the tread middle part, and the radial central line of silence cotton coincides with the radial central line of tire tread, and silence cotton includes outside silence cotton and inboard silence cotton, and the quality of outside silence cotton is less than the quality of inboard silence cotton, and silence cotton inside and outside quality difference m2=m2×a, and the unit is g, and wherein, M2 is the total weight of silence cotton, and a is the outside and inside sea Liu Bi difference of tire tread decorative pattern.
4. The asymmetric low noise self-repairing tire of claim 3, wherein: the self-sealing glue is positioned in the middle of the tread, the radial center line of the self-sealing glue coincides with the radial center line of the tread, the self-sealing glue comprises an outer self-sealing glue and an inner self-sealing glue, the mass of the outer self-sealing glue is smaller than that of the inner self-sealing glue, the mass difference M3 = M3 x a between the inner side and the outer side of the self-sealing glue is given in g, wherein M3 is the total weight of the self-sealing glue, and a is the difference between the outer side and the inner side of the tread pattern of the tire and Liu Bi.
5. The asymmetric low noise self-repairing tire of claim 4, wherein: the mass difference m1 at the outer side and the mass difference m2 at the inner side of the mute cotton and the mass difference m3 at the inner side and the outer side of the self-sealing rubber meet m2+m3=m1, and the unit is g.
6. The asymmetric low noise self-repairing tire of claim 3, wherein: the width and thickness of the outside silence cotton are equal to those of the inside silence cotton.
7. The asymmetric low noise self-repairing tire of claim 4, wherein: the width and thickness of the outside self-sealing glue and the inside self-sealing glue are equal.
8. The asymmetric low noise self-repairing tire of claim 4, wherein: the width of the outside self-sealing glue is equal to that of the outside mute cotton, and the width of the inside self-sealing glue is equal to that of the inside mute cotton.
9. The asymmetric low noise self-repairing tire of claim 1, wherein: density of self-sealing glue1.25g/cm 3 -1.45g/cm 3 The tensile strength is 1.8Mpa-2.3Mpa, and the elongation at break is 400% -600%.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320620606.XU CN219618853U (en) | 2023-03-27 | 2023-03-27 | Asymmetric low-noise self-repairing tire |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320620606.XU CN219618853U (en) | 2023-03-27 | 2023-03-27 | Asymmetric low-noise self-repairing tire |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219618853U true CN219618853U (en) | 2023-09-01 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202320620606.XU Active CN219618853U (en) | 2023-03-27 | 2023-03-27 | Asymmetric low-noise self-repairing tire |
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| Country | Link |
|---|---|
| CN (1) | CN219618853U (en) |
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- 2023-03-27 CN CN202320620606.XU patent/CN219618853U/en active Active
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