CN110001295A - Pneumatic tire for heavy load - Google Patents
Pneumatic tire for heavy load Download PDFInfo
- Publication number
- CN110001295A CN110001295A CN201910212559.3A CN201910212559A CN110001295A CN 110001295 A CN110001295 A CN 110001295A CN 201910212559 A CN201910212559 A CN 201910212559A CN 110001295 A CN110001295 A CN 110001295A
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- CN
- China
- Prior art keywords
- tread rubber
- rubber
- tread
- tire
- heavy load
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 239000000463 material Substances 0.000 claims abstract description 15
- 230000000704 physical effect Effects 0.000 claims abstract description 5
- 238000005096 rolling process Methods 0.000 abstract description 21
- 238000004513 sizing Methods 0.000 abstract description 13
- 230000000694 effects Effects 0.000 abstract description 3
- 238000009826 distribution Methods 0.000 description 5
- 230000009977 dual effect Effects 0.000 description 4
- 238000000034 method Methods 0.000 description 4
- 230000001603 reducing effect Effects 0.000 description 4
- 238000012360 testing method Methods 0.000 description 4
- 239000003292 glue Substances 0.000 description 2
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000005303 weighing Methods 0.000 description 1
Classifications
-
- 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
- B60C11/00—Tyre tread bands; Tread patterns; Anti-skid inserts
-
- 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
- B60C11/00—Tyre tread bands; Tread patterns; Anti-skid inserts
- B60C11/0008—Tyre tread bands; Tread patterns; Anti-skid inserts characterised by the tread rubber
- B60C2011/0016—Physical properties or dimensions
-
- 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
- B60C11/00—Tyre tread bands; Tread patterns; Anti-skid inserts
- B60C11/0008—Tyre tread bands; Tread patterns; Anti-skid inserts characterised by the tread rubber
- B60C2011/0016—Physical properties or dimensions
- B60C2011/0025—Modulus or tan delta
-
- 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
- B60C2200/00—Tyres specially adapted for particular applications
- B60C2200/06—Tyres specially adapted for particular applications for heavy duty vehicles
-
- 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
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Tires In General (AREA)
Abstract
The present invention relates to Pneumatic tire for heavy load, zanjon rib tire especially therein is a kind of technology that rolling resistance is reduced about the super-heavy load tire used under the conditions of hyperbar (800kpa or more).Pneumatic tire for heavy load, base rubber is arranged between the belt and tyre surface of cross-over configuration in the tire, base rubber and belt are adjacent and cover belt, it is made of between tyre surface and base rubber the first tread rubber and the second tread rubber, first tread rubber is configured in tire equator middle section, and the second tread rubber is arranged in the two sides of the first tread rubber and the first tread rubber is clipped in the middle；It is characterized in that, the sizing material physical property relationship of the first tread rubber and the second tread rubber under 80 DEG C of states is as follows: tan δ value: first the second tread rubber of tread rubber >, hardness number: first the second tread rubber of tread rubber >.The present invention is by being efficiently used the tread rubber of low hysteresis loss (low tan δ characteristic), the drop rolling resistance effect that do not accomplish before realizing.
Description
Technical field
The present invention relates to Pneumatic tire for heavy load, zanjon rib tire especially therein is one kind about in hyperbar
The super-heavy load tire used under the conditions of (800kpa or more) reduces the technology of rolling resistance.
Background technique
In recent years as a wherein ring for environmental protection, the exhaust emissions of card car is controlled, the rolling to heavy duty tire
Dynamic resistance requires gradually high.The off-energy of tire material accounts for the overwhelming majority of tire drag in driving process, wherein weighing
40% to 60% rolling resistance for carrying tire is derived from the hysteresis loss of tyre surface position sizing material.Therefore in order to which the rolling for reducing tire hinders
Power, the effective method generally used are the tread rubber sizing materials small using hysteresis loss.
However, in heavy-duty pneumatic tire, if hyperbar use condition (800kpa or more), and decorative pattern ditch depth is more than mark
The tire of quasi- ditch depth, and decorative pattern is the practical contact area ratio of dual purpose tread pattern or block-type tread etc below fills 70%
In the case where air filled tyre, even if the sizing material low using hysteresis loss, the effect for reducing rolling resistance also cannot achieve.Sometimes even
The sizing material rolling resistance bigger than hysteresis loss is also poor, this thing has passed through test and has been confirmed.
Summary of the invention
The purpose of this patent is to be directed to above-mentioned hyperbar, zanjon tire and practical contact area ratio below 70%
Short-distance mixing series decorative pattern as heavy-duty pneumatic tire, a kind of heavy-duty pneumatic tire is provided, it is low by being efficiently used
The tread rubber of hysteresis loss (low tan δ characteristic), the drop rolling resistance effect that do not accomplish before realizing.
In order to achieve the above purpose, present invention employs technical solutions below:
Pneumatic tire for heavy load, the tire are arranged base rubber between the belt and tyre surface of cross-over configuration, base rubber and
Belt is adjacent and covers belt, is made of between tyre surface and base rubber the first tread rubber and the second tread rubber, the first tire
Face glue is configured in tire equator middle section, and the second tread rubber is arranged in the two sides of the first tread rubber and is clipped in the first tread rubber
It is intermediate；It is characterized in that, the sizing material physical property relationship of the first tread rubber and the second tread rubber under 80 DEG C of states is as follows:
Tan δ value: first the second tread rubber of tread rubber >,
Hardness number: first the second tread rubber of tread rubber >.
As a further improvement, the width TWAS and entire tread width in the tread width direction of first tread rubber
The relationship of TW is TWAS/TW=0.30~0.50, narrower closer to groove bottom；The width of first tread rubber of groove bottom position
Degree TWAG is TWAG/TW=0.15~0.30.
Detailed description of the invention
The distribution map for three kinds of tread rubber physical property (tan δ, Hs) that this experiment of Fig. 1 uses.
Fig. 2 tradition tread structure.
Fig. 3 tread structure of the present invention.
Fig. 4-1~4-5 tyre surface inner ground pressure distribution result of finite element；
Fig. 4-1: tread surface,
The position Fig. 4-2: decorative pattern ditch depth 4.5mm,
The position Fig. 4-3: decorative pattern ditch depth 9.0mm,
The position Fig. 4-4: decorative pattern ditch depth 13.5mm,
Fig. 4-5: the position decorative pattern ditch depth 17.5mm (bottom of trench).
The pattern type of Fig. 5 test.
Specific embodiment
It is that the sizing material hysteresis loss as caused by repeated deformation is drawn during tire rolls that accounting is maximum in the rolling resistance of tire
It rises, tire drag value can substantially be indicated with following formula.
RR≈1/2∑σеtanδdV……
RR: tire drag
σ: stress (main component of tread rubber regional stress is that ground plane is conducted through the ground connection counter-force come)
E: strain
Tan δ: the hysteresis loss of rubber
V: rubber volume
1/2 σ e: strain energy
In heavy-duty pneumatic tire, tyre surface ratio shared in tire entirety rolling resistance is 40% to 60%.From above-mentioned
Formula is it may also be appreciated that generally in order to reduce rolling resistance, the method for use is to reduce the hysteresis loss i.e. tan δ of tread rubber.
However the low rolling of tire resistance is required to be expanded to short-distance tire range from the long-distance tire of high speed before, it is only single
The target value that rolling resistance requires also is not achieved in the sizing material for changing low hysteresis loss into purely, this point is confirmed by test.
Fig. 2 be the long-distance tire tread glue A019 of our company and be born on this basis heat H019-1, H019-2 these three
The relationship of hardness (Hs) and tan δ of sizing material.
1. according to rolling resistance formula, general tread rubber tan δ is reduced, and Shao Er hardness also can be reduced and then.
The stress σ of formula 1. is equivalent to ground connection counter-force, almost linearly related to air pressure, belt structure.Straining e is tire
Face pattern block, rib part deform (downward deformation) as caused by ground connection counter-force, and shore hardness reduces strain e and increases,
The result is that 1/2 σ ε of strain energy increases and the hysteresis loss tan δ reducing effect of sizing material is cancelled out each other.
Therefore can explain why hyperbar, deep groove, practical contact area ratio small (70%) tire on
The tread rubber of low-heat-generation has been used, expectative rolling resistance improvement is also unable to get.
Designer of the present invention is conceived to the pressure distribution inside tyre contact patch and tyre surface thus, in ground connection counter-force
The sizing material of high region configuration hardness Hs high inhibits deformation, and the sizing material for setting low tan δ is matched in the low region of ground connection counter-force, makes decorative pattern
The pneumatic tire that ditch is again deep, decorative pattern contact area is small can also be effectively reduced rolling resistance.
Tire model is set as specification 12.00R20, decorative pattern ditch depth 17.5mm, with FEM calculation tyre contact patch and tire
As a result pressure distribution inside face is shown in Fig. 4-1 to Fig. 4-5.
What Fig. 4-1~Fig. 4-5 was indicated is following depth direction position.
Tire specification 12.00R20 18PR, decorative pattern ditch depth 17.5mm, dual purpose tread pattern of the practical contact area than 65% are used
Following two tread structure and three kinds of tyre surface formula combinations are tested.
Tread structure
I: traditional tread structure figure .2
II: tread structure figure .3 of the present invention.
The wide TW 226mm of tread, the tyre surface A face width TWS 82mm of tyre surface middle section, the tire of tyre surface middle section
Face A bottom of trench partial width TWG 72mm, TWG/TW=31.5%, TWS/TW=36%.
Tyre surface formula physical property:
| 80℃ | tanδ | Hs |
| A019 | 0.189 | 67 |
| H019-Ⅰ | 0.156 | 64 |
| H019-Ⅱ | 0.13 | 63 |
Testing program:
Above five schemes according to the regulation of national standard GB/T18861, carried out the measurement of rolling resistance resistance coefficient.
Test result is as follows.
Coefficient of rolling resistance RRC=rolling resistance/load:
So by the tread structure in this patent, so that zanjon decorative pattern, practical contact area ratio are in 70% wheel below
Tire can more effectively reduce rolling resistance.
As described above, tread area is divided into tyre surface A and tyre surface B, tire by the distribution situation according to earth contact pressure inside tyre surface
The tyre surface A face width in face center is TWS, bottom of trench width is TWG, TWS > TWG, and the compression for reducing tyre surface center portion becomes
Shape and effectively configuration low-heat-generation tread rubber B it is critically important.
Dual purpose tread pattern in above-described embodiment is also commonly used on poor road surface, it is desirable that certain thorn resistance energy.And low-heat-generation
Formula not can avoid the decrease of thorn resistance energy generally since sizing material hardness reduces.
The tread structure of this patent, can be with because being easy not configuring low-heat-generation rubber by the tyre surface middle section of puncture
Avoid the risk that defect generates in poor road traveling.
The present invention is suitable for the heavily loaded Pneumatic belt tire of deep groove, and especially practical contact area is than 70% or less
Dual purpose tread pattern, snowfield patterns series.
The above are the descriptions to the embodiment of the present invention to keep this field special by the foregoing description of the disclosed embodiments
Industry technical staff can be realized or using the present invention.Various modifications to these embodiments carry out those skilled in the art
Saying will be apparent.The general principles defined herein can be the case where not departing from the spirit or scope of the present invention
Under, it realizes in other embodiments.Therefore, the present invention is not intended to be limited to these implementation columns shown in this article, but to accord with
Close the widest scope consistent with principles disclosed herein and novel point.
Claims (2)
1. Pneumatic tire for heavy load, which is arranged base rubber (C), base rubber between the belt and tyre surface of cross-over configuration
(C) and belt is adjacent and cover belt, by the first tread rubber (A) and the second tread rubber between tyre surface and base rubber (C)
(B) it forms, the first tread rubber (A) configuration is arranged in tire equator middle section, the second tread rubber (B) at the first tread rubber (A)
Two sides and the first tread rubber (A) is clipped in the middle；It is characterized in that, the first tread rubber (A) and the second tread rubber (B) are at 80 DEG C
Sizing material physical property relationship under state is as follows:
Tan δ value: the first tread rubber (A) second tread rubber of > (B),
Hardness number: the first tread rubber (A) second tread rubber of > (B).
2. Pneumatic tire for heavy load according to claim 1, which is characterized in that the tread width side of the first tread rubber (A)
To width TWAS and entire tread width TW relationship be TWAS/TW=0.30 ~ 0.50, it is narrower closer to groove bottom；Decorative pattern
The width TWAG of the first tread rubber (A) of bottom of trench position is TW=0.15 ~ 0.30 TWAG/.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910212559.3A CN110001295A (en) | 2019-03-20 | 2019-03-20 | Pneumatic tire for heavy load |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910212559.3A CN110001295A (en) | 2019-03-20 | 2019-03-20 | Pneumatic tire for heavy load |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110001295A true CN110001295A (en) | 2019-07-12 |
Family
ID=67167450
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910212559.3A Pending CN110001295A (en) | 2019-03-20 | 2019-03-20 | Pneumatic tire for heavy load |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110001295A (en) |
Citations (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0687302A (en) * | 1992-09-07 | 1994-03-29 | Bridgestone Corp | Heavy load radial tire for construction vehicle |
| JP2001206013A (en) * | 2000-01-26 | 2001-07-31 | Bridgestone Corp | Pneumatic tire |
| JP2003326917A (en) * | 2002-05-10 | 2003-11-19 | Toyo Tire & Rubber Co Ltd | Pneumatic radial tire |
| JP2008189042A (en) * | 2007-02-01 | 2008-08-21 | Bridgestone Corp | Tire for motorcycle |
| CN101500824A (en) * | 2006-08-11 | 2009-08-05 | 株式会社普利司通 | Pneumatic radial tire for motorcycle |
| CN101743136A (en) * | 2007-06-07 | 2010-06-16 | 株式会社普利司通 | Tire for two-wheeled motor vehicle and method of use of tire for two-wheeled motor vehicle |
| CN101792545A (en) * | 2010-03-04 | 2010-08-04 | 杭州中策橡胶有限公司 | Tread rubber glue stock of tyre with low rolling resistance and tyre adopting tread rubber |
| CN101848818A (en) * | 2007-10-04 | 2010-09-29 | 株式会社普利司通 | Pneumatic tire for two-wheeled motor vehicle |
| WO2012005248A1 (en) * | 2010-07-05 | 2012-01-12 | 株式会社ブリヂストン | Pneumatic tire for two-wheeled vehicle |
| CN103042885A (en) * | 2011-10-14 | 2013-04-17 | 住友橡胶工业株式会社 | Heavy duty tire |
| JP2013079014A (en) * | 2011-10-04 | 2013-05-02 | Yokohama Rubber Co Ltd:The | Pneumatic tire |
| JP2013079016A (en) * | 2011-10-04 | 2013-05-02 | Yokohama Rubber Co Ltd:The | Pneumatic tire |
| CN107757261A (en) * | 2017-11-07 | 2018-03-06 | 江苏通用科技股份有限公司 | The full laminated devices glue formula tread structure of height radiating |
| CN209719170U (en) * | 2019-03-20 | 2019-12-03 | 中策橡胶集团有限公司 | Pneumatic tire for heavy load |
-
2019
- 2019-03-20 CN CN201910212559.3A patent/CN110001295A/en active Pending
Patent Citations (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0687302A (en) * | 1992-09-07 | 1994-03-29 | Bridgestone Corp | Heavy load radial tire for construction vehicle |
| JP2001206013A (en) * | 2000-01-26 | 2001-07-31 | Bridgestone Corp | Pneumatic tire |
| JP2003326917A (en) * | 2002-05-10 | 2003-11-19 | Toyo Tire & Rubber Co Ltd | Pneumatic radial tire |
| CN101500824A (en) * | 2006-08-11 | 2009-08-05 | 株式会社普利司通 | Pneumatic radial tire for motorcycle |
| JP2008189042A (en) * | 2007-02-01 | 2008-08-21 | Bridgestone Corp | Tire for motorcycle |
| CN101743136A (en) * | 2007-06-07 | 2010-06-16 | 株式会社普利司通 | Tire for two-wheeled motor vehicle and method of use of tire for two-wheeled motor vehicle |
| CN101848818A (en) * | 2007-10-04 | 2010-09-29 | 株式会社普利司通 | Pneumatic tire for two-wheeled motor vehicle |
| CN101792545A (en) * | 2010-03-04 | 2010-08-04 | 杭州中策橡胶有限公司 | Tread rubber glue stock of tyre with low rolling resistance and tyre adopting tread rubber |
| WO2012005248A1 (en) * | 2010-07-05 | 2012-01-12 | 株式会社ブリヂストン | Pneumatic tire for two-wheeled vehicle |
| JP2013079014A (en) * | 2011-10-04 | 2013-05-02 | Yokohama Rubber Co Ltd:The | Pneumatic tire |
| JP2013079016A (en) * | 2011-10-04 | 2013-05-02 | Yokohama Rubber Co Ltd:The | Pneumatic tire |
| CN103042885A (en) * | 2011-10-14 | 2013-04-17 | 住友橡胶工业株式会社 | Heavy duty tire |
| CN107757261A (en) * | 2017-11-07 | 2018-03-06 | 江苏通用科技股份有限公司 | The full laminated devices glue formula tread structure of height radiating |
| CN209719170U (en) * | 2019-03-20 | 2019-12-03 | 中策橡胶集团有限公司 | Pneumatic tire for heavy load |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| CB02 | Change of applicant information | ||
| CB02 | Change of applicant information |
Address after: 310018 No. 1, No. 1 Street, Qiantang District, Hangzhou, Zhejiang Applicant after: Zhongce Rubber Group Co.,Ltd. Address before: 310018 No. 2, 10th Street, Hangzhou Economic and Technological Development Zone, Hangzhou, Zhejiang Applicant before: ZHONGCE RUBBER GROUP Co.,Ltd. |