CN110303827A - A kind of all steel run-flat radial and its manufacturing method - Google Patents
A kind of all steel run-flat radial and its manufacturing method Download PDFInfo
- Publication number
- CN110303827A CN110303827A CN201910658899.9A CN201910658899A CN110303827A CN 110303827 A CN110303827 A CN 110303827A CN 201910658899 A CN201910658899 A CN 201910658899A CN 110303827 A CN110303827 A CN 110303827A
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- Prior art keywords
- glue
- carcass
- belt
- line
- wire loop
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29D—PRODUCING PARTICULAR ARTICLES FROM PLASTICS OR FROM SUBSTANCES IN A PLASTIC STATE
- B29D30/00—Producing pneumatic or solid tyres or parts thereof
- B29D30/06—Pneumatic tyres or parts thereof (e.g. produced by casting, moulding, compression moulding, injection moulding, centrifugal casting)
- B29D30/08—Building tyres
-
- 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
-
- 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
Abstract
The invention discloses a kind of all steel run-flat radial and its manufacturing methods, are related to tyre technology.The present invention, carcass (1) are single layer carcass structures, and carcass (1) forms anti-package area (101) on the outside of wire loop (3) around wire loop (3)；Carcass port (102) is located between glue core upper end (201) and wire loop (3)；Support glue upper port (401) is located at below belt (5), support glue (4) and belt (5) unilateral overlap distance a:15mm≤a≤19mm or 25mm < a≤30mm；Belt (5) and carcass (1) framework material all select wirecord fabric.Compared with prior art, in the present invention, carcass structure is the design of single layer carcass, reduces tire cost；Tyre framework is full steel structure, improves tyre framework structural strength；High-intensitive All-steel tire skeleton structure can mix the lower support plastic structure design of thickness, substantially reduce tire cost；Improve the endurance quality of tire；Tire is improved to ride comfort level.
Description
Technical field
The present invention relates to tyre technology, in particular to a kind of all steel run-flat radial and its manufacturer
Method.
Background technique
With the development of the automobile industry, high-end automobile brand captures rapidly China, corresponding tire with high safety property
Demand also incrementally increases.Tire giant has had appreciated that this business opportunity, Gu special, Michelin and bridgestone etc. are all released
Tire with run-flat function, run-flat product keep people safer when driving vehicle.Run-flat wheel at present
Tire is just developed with annual 15% speed, is a main trend of future automobile allied industry development.
Run-flat tire product has been introduced in majority brand at present, but the cost and performance of tire is difficult in production
Meet simultaneously, because the product needs to increase support glue component at present, while 85% product is all 2 layers of+2 layers of banding of+2 layers of carcass
The design of string of a hat structure, normal product year-on-year in this way, weight will averagely weight 2.5-4.5kg, while the endurance quality of product and comfortable
Performance also declines therewith.
Summary of the invention
The present invention provides a kind of all steel run-flat radial and its manufacturing method, is designed by structure, and system
Method improvement is made, above-mentioned technical problem is solved.
Specific technical solution is a kind of all steel run-flat radial, including carcass, glue core, wire loop, support
Glue, belt, inner liner, tread band, sidewall glue-line, protection glue-line and tire heel；Tread band is in the top of belt, glue core
It is connected to wire loop upper end, carcass is located on the inside of tire and extends to wire loop, supports glue between carcass and inner liner；
Carcass is single layer carcass structure, and carcass bypasses the wire loop being located in tire heel, and anti-package is formed on the outside of wire loop
Area, protection glue-line are affixed on the outside of anti-package area；Sidewall glue-line is connected to tread band and protection glue-line；The port of protection glue-line is located at
Between glue core upper end and wire loop；Carcass port is between glue core upper end and wire loop；Support glue upper port is located at belt
Lower section, support glue is Chong Die with belt layer part, and 15mm≤a≤19mm or 25mm < a≤30mm, a represents support glue and belt
Unilateral overlap distance；The lower extreme point of support glue is designed according to tire specification, and tire specification is different, and profile height is different,
Support the design of glue width also different.
Belt and carcass ply all select wirecord fabric, i.e. full steel structure.Wherein, carcass ply is selected
Wire material has the characteristics that bending stiffness is low and steel wire diameter is thin, guarantees the processability of carcass and the flexural property of carcass.
Further, wire loop includes wire loop top and wire loop lower part, the glue core lower end company on wire loop top and glue core
It connects, carcass is tightly attached in wire loop lower part.
Further, the carcass port of the carcass is located in the middle part of the glue core of glue core on outside.
Further, support glue is that thick middle both ends are thin, supports the thickness of glue than existing run-flat tire branch in the present invention
The thickness for supportting glue is thinner, the intermediate position of existing run-flat tire support glue with a thickness of 8-12mm, it is of the invention in all steel knot
Structure can will support the support glue interior thickness scope of design on glue to be down to 5.5-8mm.Not only keep zero air pressure of run-flat resistance to
Long performance, moreover it is possible to significantly improve the common endurance quality of product, according to experiment, 20-35% is can be improved in endurance quality.
Supporting the support glue interior thickness on glue is 5.5-8mm.
Further, the support glue lower port on glue is supported to be affixed on the inside of carcass.
Further, gradually thinning, the section not being generally flush at the belt port of the belt.Belt includes upper band
Beam layer and lower belt, the length of belt under being shorter in length than of upper belt.In processing and fabricating, upper belt and lower banding
The center line of layer is that alignment is placed.
Further, sidewall glue-line is fitted and connected with protective glue interlayer by the first inclined-plane and the second ramps.
A kind of manufacturing method of all steel run-flat radial, including the following steps:
The manufacture of S1, belt and carcass carry out being woven into net being fabricated to wirecord fabric skeleton, connect after first steel wire is straightened
Glue is covered on wirecord fabric skeleton, then will cover the wirecord fabric after glue and cut, obtain that there is certain shapes size
Belt and carcass, then curl into the structure of belt and carcass required on tire；
The manufacture of S2, glue-line, according to the difference of sizing material used in each position of tire, carry out respectively refining glue, roll it is different out
Film carries out cutting plastic emitting core, support glue, inner liner, tread band, sidewall glue-line further according to the specific size of each position glue-line
With protection glue-line；
S3, the manufacture of tyre framework structure, belt are symmetrically placed in top position in the middle part of carcass, between belt and carcass into
Row overlap joint or welding；Two sides wire loop is respectively placed on the inside of the anti-package area of two sides, is overlapped or is welded between wire loop and carcass
It connects, the transmitting of power between fortified tyre skeleton, there is no receiving and the weakness of transmission force, greatly improve tyre framework structural strength；
S4, tire are preforming, based on tyre framework structure in S3, according to tire construction position, by support glue insertion
On the inside of carcass, inner liner is in inside covering carcass and support glue；
It is filled with the air of certain pressure in inside, external glue-line is pasted using pressing mode, to drive internal gas out of, is avoided each
There is cavity in structure interlayer, and glue core partly imbeds the inside in anti-package area, and glue core lower end connects wire loop top, and carcass port is located at glue
In the middle part of the glue core of core on outside, protection glue-line is affixed on the outside of anti-package area, and sidewall glue-line lower end is bonded with protection glue-line upper end inclined-plane
Connection, tread band are overlying on belt, and both ends are bonded with sidewall glue-line；
Green tire in S4 is placed in vulcanizer by S5, vulcanization, is vulcanized under the conditions of certain pressure, temperature and time
Molding, obtains all steel run-flat radial.
Full steel structure in the present invention, carcass are single layer carcass structures, and the position of glue-line is protected to drop to glue core endpoint
Between wire loop, the light 5-10% of the existing run-flat tire of weight ratio, while improving the comfort level by bus of product.
When tire is installed, in tire heel insertion wheel rim, there is pressure maintaining effect after inflation；After tire leaks air deficency, wheel
Tire can be flat, and high-intensitive All-steel tire skeleton structure and support glue can all hinder its flattening degree to deepen, to ensure that it can be with
It runs flat.
Compared with prior art, in the present invention, carcass structure is the design of single layer carcass, reduces tire cost；Tyre framework
It is full steel structure, improves tyre framework structural strength；High-intensitive All-steel tire skeleton structure can mix the lower support of thickness
Plastic structure design, substantially reduces tire cost；Improve the endurance quality of tire；Tire is improved to ride comfort level.
Detailed description of the invention
Fig. 1 is all steel run-flat radial partial illustrations；
Fig. 2 is all steel run-flat radial schematic diagram in specific embodiment.
Description of symbols:
1, carcass, 2, glue core, 3, wire loop, 4, support glue, 5, belt, 6, inner liner, 7, tread band, 8, sidewall rubber
Layer, 9, protection glue-line, 10, tire heel, a, support glue and the unilateral overlap distance of belt, 101, anti-package area, 102, carcass port,
201, glue core upper end, 202, glue core lower end, 203, glue core middle part, 301, wire loop top, 302, wire loop lower part, 401, support
Glue upper port, 402, support glue lower port, 403, support glue middle part, 501, belt port, 502, upper belt, 503, lower band
Beam layer, the 801, first inclined-plane, the 901, second inclined-plane.
Specific embodiment
The specific embodiment of the invention is described with reference to the accompanying drawings and embodiments:
It should be noted that structure, ratio, the size etc. illustrated in this specification institute attached drawing, only to cooperate explanation
The revealed content of book is not intended to limit the invention enforceable restriction so that those skilled in the art understands and reads
Condition, the modification of any structure, proportionate relationship change or the adjustment of size, are not influencing the effect of present invention can be generated
And under the purpose that can reach, it should all fall in the range of disclosed technology contents can cover.
Meanwhile cited such as "upper" in this specification, "lower", "left", "right", " centre " and " one " term, also
Only being illustrated convenient for narration, rather than to limit the scope of the invention, relativeness is altered or modified, in nothing
Under essence change technology contents, when being also considered as the enforceable scope of the present invention.
Embodiment 1:
Fig. 1 and Fig. 2, a kind of all steel run-flat radial, including carcass 1, glue core 2, wire loop 3, support glue 4,
Belt 5, inner liner 6, tread band 7, sidewall glue-line 8, protection glue-line 9 and tire heel 10；Tread band 7 is upper belt 5
Side, glue core 2 are connected to 3 upper end of wire loop, and carcass 1 is located on the inside of tire and extends to wire loop 3, and support glue 4 is located at 1 He of carcass
Between inner liner 6；Carcass 1 is single layer carcass structure, and carcass 1 bypasses the wire loop 3 being located in tire heel 10, and outside wire loop 3
Side forms anti-package area 101, and protection glue-line 9 is affixed on 101 outside of anti-package area；Sidewall glue-line 8 is connected to tread band 7 and protection glue-line
9；Carcass port 102 is located between glue core upper end 201 and wire loop 3；Support glue upper port 401 is located at 5 lower section of belt, support
Glue 4 partly overlaps with belt 5, a=15mm.
Belt 5 and 1 framework material of carcass all select wirecord fabric, i.e. full steel structure.Wherein, carcass ply is selected
Wire material have the characteristics that bending stiffness is low and steel wire diameter is thin, guarantee the processability of carcass and the flexural property of carcass.
Wire loop 3 includes wire loop top 301 and wire loop lower part 302, under the glue core of wire loop top 301 and glue core 2
202 connection of end, carcass 1 is tightly attached in wire loop lower part 302.
The carcass port 102 of the carcass 1 is located in the middle part of the glue core of glue core 2 on 203 outsides.
Supporting glue 4 is that thick middle both ends are thin, supports the support glue middle part 403 on glue 4 with a thickness of 6mm.
Support glue lower port 402 on support glue 4 is affixed on 1 inside of carcass.
It is gradually thinning at the belt port 501 of the belt 5.
Belt 5 includes upper belt 502 and lower belt 503, belt 503 under being shorter in length than of upper belt 502
Length.
It is fitted and connected between sidewall glue-line 8 and protection glue-line 9 by the first inclined-plane 801 and 901 inclined-plane of the second inclined-plane.
A kind of manufacturing method of all steel run-flat radial, including the following steps:
The manufacture of S1, belt 5 and carcass 1 carry out being woven into net being fabricated to wirecord fabric skeleton after first steel wire is straightened,
Then glue is covered on wirecord fabric skeleton, then will be covered the wirecord fabric after glue and is cut, obtains with certain shapes size
Belt 5 and carcass 1, then the structure of belt 5 and carcass 1 needed for curling on tire；
The manufacture of S2, glue-line, according to the difference of sizing material used in each position of tire, carry out respectively refining glue, roll it is different out
Film carries out cutting plastic emitting core 2, support glue 4, inner liner 6, tread band 7, sidewall further according to the specific size of each position glue-line
Glue-line 8 and protection glue-line 9；
S3, the manufacture of tyre framework structure, belt 5 are symmetrically placed in 1 middle part top position of carcass, belt 5 and carcass 1 it
Between overlapped or welded；Two sides wire loop 3 is respectively placed in the inside of anti-package area 101 of two sides, between wire loop 3 and carcass 1 into
Row overlap joint or welding；
S4, tire are preforming, and based on tyre framework structure in S3, according to tire construction position, support glue 4 is embedded in
1 inside of carcass, inner liner 6 is in inside covering carcass 1 and support glue 4；
It is filled with the air of certain pressure in inside, external glue-line is pasted using pressing mode, glue core 2 half imbeds anti-package area 101
Inside, glue core lower end 202 connects wire loop top 301, on carcass port 102 is located on the outside of 203 in the middle part of the glue core of glue core 2,
Protection glue-line 9 is affixed on 101 outside of anti-package area, and glue-line 8 lower end in sidewall is fitted and connected with protection 9 upper end inclined-plane of glue-line, tread band 7
It is overlying on belt 5, both ends are bonded with sidewall glue-line 8；
Green tire in S4 is placed in vulcanizer by S5, vulcanization, is vulcanized under the conditions of certain pressure, temperature and time
Molding, obtains all steel run-flat radial.
Embodiment 2:
It supports the support glue middle part 403 on glue 4 with a thickness of 8mm, supports glue and the unilateral overlap distance a=19mm of belt.
Remaining design is same as Example 1 or similar, identical using manufacturing method.
Embodiment 3:
It supports the support glue middle part 403 on glue 4 with a thickness of 5.5mm, supports glue and the unilateral overlap distance a=of belt
30mm.Remaining design is same as Example 1 or similar, identical using manufacturing method.
Carcass 1 is single layer carcass in the present invention, and belt 5 and 1 framework material of carcass all select wirecord fabric, i.e. all steel knot
Structure supports the thickness of glue 4 1.5-3.5mm thinner than existing run-flat tire；The light 5-10% of the existing run-flat tire of weight ratio.
Zero air pressure endurance quality, common endurance quality are carried out compared with ride comfort.Wherein, the reality of endurance quality test
Proved recipe method is referring to national standard GBT 4502-2016 and GBT 30196-2013；The subjective assessment mode that ride comfort is taken.
Zero air pressure endurance quality test condition: 38 ± 3 DEG C of test temperature, air pressure 0, test speed is 80km/h, load
It is the corresponding load-bearing capacity X65% of load factor, test period is 60min；
Common endurance quality: 38 ± 3 DEG C of test temperature, air pressure 220kpa, test speed is 120km/h, and load is negative
The corresponding load-bearing capacity X90% of lotus index, test period is 6h.
Performance test is as follows:
Remarks: the excellent label "+" of performance quite marks "=".
Many other changes and remodeling can be made by not departing from the spirit and scope of the present invention.It should be appreciated that the present invention is not
It is limited to specific embodiment, the scope of the present invention is defined by the following claims.
Claims (9)
1. a kind of all steel run-flat radial, including carcass (1), glue core (2), wire loop (3), support glue (4), banding
Layer (5), inner liner (6), tread band (7), sidewall glue-line (8), protection glue-line (9) and tire heel (10)；Tread band (7) is in band
The top of beam layer (5), glue core (2) are connected to wire loop (3) upper end, and carcass (1) is located on the inside of tire and extends to wire loop
(3), support glue (4) is located between carcass (1) and inner liner (6)；It is characterized in that,
Carcass (1) is single layer carcass structure, and carcass (1) bypasses the wire loop (3) being located in tire heel (10), and in wire loop (3)
Outside forms anti-package area (101), and protection glue-line (9) is affixed on the outside of anti-package area (101)；
Sidewall glue-line (8) is connected to tread band (7) and protection glue-line (9)；
The port of protection glue-line (9) is located between glue core upper end (201) and wire loop (3)；
Support glue upper port (401) is located at below belt (5), and support glue (4) partly overlaps with belt (5), and 15mm≤a≤
19mm or 25mm < a≤30mm, a represent support glue and the unilateral overlap distance of belt；
Belt (5) and carcass (1) framework material all select wirecord fabric.
2. a kind of all steel run-flat radial according to claim 1, which is characterized in that wire loop (3) includes
Wire loop top (301) and wire loop lower part (302), wire loop top (301) are connect with the glue core lower end (202) of glue core (2),
It is tightly attached to carcass (1) in wire loop lower part (302).
3. a kind of all steel run-flat radial according to claim 1, which is characterized in that the carcass (1)
Carcass port (102) is located in the middle part of the glue core of glue core (2) on (203) outside.
4. a kind of all steel run-flat radial according to claim 1, which is characterized in that support glue (4) is
Between thick both ends it is thin, (403) are in the middle part of the support glue in support glue (4) with a thickness of 5.5-8mm.
5. a kind of all steel run-flat radial according to claim 1, which is characterized in that in support glue (4)
Support glue lower port (402) is affixed on the inside of carcass (1).
6. a kind of all steel run-flat radial according to claim 1, which is characterized in that the belt (5)
Belt port (501) at it is gradually thinning.
7. a kind of all steel run-flat radial according to claim 1, which is characterized in that belt (5) includes
Upper belt (502) and lower belt (503), the length of belt (503) under being shorter in length than of upper belt (502).
8. a kind of all steel run-flat radial according to claim 1, which is characterized in that sidewall glue-line (8) with
It is fitted and connected between protection glue-line (9) by the first inclined-plane (801) and the second inclined-plane (901) inclined-plane.
9. a kind of manufacturing method of all steel run-flat radial as described in any of the claims 1 to 8, feature exist
In,
Include the following steps:
The manufacture of S1, belt (5) and carcass (1) carry out being woven into net being fabricated to wirecord fabric skeleton after first steel wire is straightened,
Then glue is covered on wirecord fabric skeleton, then will be covered the wirecord fabric after glue and is cut, obtains with certain shapes size
Belt (5) and carcass (1), then the structure of belt (5) and carcass (1) needed for curling on tire；
The manufacture of S2, glue-line, according to the difference of sizing material used in each position of tire, carry out respectively refining glue, roll films different out,
Further according to each position glue-line specific size cut plastic emitting core (2), support glue (4), inner liner (6), tread band (7),
Sidewall glue-line (8) and protection glue-line (9)；
S3, the manufacture of tyre framework structure, belt (5) are symmetrically placed in top position in the middle part of carcass (1), belt (5) and carcass
(1) it is overlapped or is welded between；Two sides wire loop (3) is respectively placed on the inside of the anti-package areas (101) of two sides, wire loop (3) with
Carcass is overlapped or is welded between (1)；
S4, tire are preforming, and based on tyre framework structure in S3, according to tire construction position, support glue (4) is embedded in tire
On the inside of body (1), inner liner (6) is in inside covering carcass (1) and support glue (4)；It is filled with the air of certain pressure in inside, is used
Pressing mode pastes external glue-line, and glue core (2) partly imbeds the inside of anti-package area (101), and glue core lower end (202) connects wire loop top
(301), carcass port (102) are located in the middle part of the glue core of glue core (2) on (203) outside, and protection glue-line (9) is affixed on anti-package area
(101) outside, sidewall glue-line (8) lower end are fitted and connected with protection glue-line (9) upper end inclined-plane, and tread band (7) is overlying on belt
(5) on, both ends are bonded with sidewall glue-line (8)；
Green tire in S4 is placed in vulcanizer by S5, vulcanization, carries out sulfidization molding under the conditions of certain pressure, temperature and time,
Obtain all steel run-flat radial.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201910658899.9A CN110303827A (en) | 2019-07-22 | 2019-07-22 | A kind of all steel run-flat radial and its manufacturing method |
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| CN115848070A (en) * | 2023-02-23 | 2023-03-28 | 广饶县计量测试检定所(广饶县产品质量检验所、广饶县橡胶轮胎产品与材料质量检验中心) | Tire bead part capable of improving performance of bead part, tire and inspection method |
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| CN114312169A (en) * | 2022-01-27 | 2022-04-12 | 青岛双星轮胎工业有限公司 | Support rubber and run-flat tire |
| CN114312169B (en) * | 2022-01-27 | 2023-10-13 | 青岛双星轮胎工业有限公司 | Support adhesive and run-flat tire |
| CN115848070A (en) * | 2023-02-23 | 2023-03-28 | 广饶县计量测试检定所(广饶县产品质量检验所、广饶县橡胶轮胎产品与材料质量检验中心) | Tire bead part capable of improving performance of bead part, tire and inspection method |
| CN115848070B (en) * | 2023-02-23 | 2023-06-02 | 广饶县计量测试检定所(广饶县产品质量检验所、广饶县橡胶轮胎产品与材料质量检验中心) | Tire ring part capable of improving ring part performance, tire and inspection method |
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