CN107499064A - Radial tire undertread and its production technology, radial - Google Patents
Radial tire undertread and its production technology, radial Download PDFInfo
- Publication number
- CN107499064A CN107499064A CN201710698264.2A CN201710698264A CN107499064A CN 107499064 A CN107499064 A CN 107499064A CN 201710698264 A CN201710698264 A CN 201710698264A CN 107499064 A CN107499064 A CN 107499064A
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- Prior art keywords
- belt
- fibercord
- radial
- zero
- degree
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Classifications
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- 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
- B60C9/18—Structure or arrangement of belts or breakers, crown-reinforcing or cushioning layers
-
- 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
- B29D30/20—Building tyres by the flat-tyre method, i.e. building on cylindrical drums
- B29D30/30—Applying the layers; Guiding or stretching the layers during application
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Tires In General (AREA)
Abstract
The present invention proposes a meridian tyre belted layer and its production technology, the radial tire undertread is further equipped with fibercord belt in the radial outer side of the 3rd belt and zero-degree belt, and the axial both ends of the fibercord belt are located at the axially external of second belt；The production technology of the radial tire undertread further lays fibercord belt in the radial outer side of the 3rd belt and zero-degree belt；The radial tire undertread and its production technology of the present invention effectively prevent radial and the technical problem that hat is empty and shoulder is empty occur, have higher endurance quality and service life.Present invention further propose that a meridian line tyre, the axial both ends of its fibercord belt are in contact with shoulder wedge respectively, have higher endurance quality and service life.
Description
Technical field
The invention belongs to tyre technology, more particularly to a meridian tyre belted layer and its production technology, meridian
Line wheel tire.
Background technology
Belt is the main stressed member of radial, and therefore, the structure of belt can be to the property of radial
Large effect can be produced.Referring to Fig. 1, currently used radial tire undertread is 3+0 structures (also referred to as zero-degree belt
Structure), i.e., radially it is equipped with the first belt 11, the second belt 12 and the 3rd belt 13 successively from inside to outside along tire,
The axial both sides of 3rd belt 13 are respectively arranged with zero-degree belt 14, wherein the first belt 11, the and of the second belt 12
The cord angle of 3rd belt 13 is larger；The cord of zero-degree belt 14 arranges with circumferential centerline parallel, and cord angle connects
Near is 0 °.
It should be noted that the radial tire undertread of 3+0 structures in the prior art, process is travelled in radial
In, the belt of tire ground area is compressed, and the belt for leaving ground region stretches again, in this process, the
Steel wire between one belt 11 and the second belt 12, between the second belt 12 and the 3rd belt 13, which can be produced mutually, to be cut
The steel wire shear action at the effect of cutting, especially the first belt 11 and 12 axial both ends of the second belt is more serious, with steel wire phase
Adjacent rubber produces fatigue damage because of the shear action of steel wire, or even cracks, with the further exacerbation of crackle, and then
There is the phenomenon that rotating radial crown is empty and shoulder is empty, have impact on the endurance quality and service life of radial.
Therefore, a meridian tyre belted layer is designed, effectively avoids radial from the skill that hat is empty and shoulder is empty occur
Art problem, the endurance quality and service life of radial are improved, is very important to those skilled in the art.
Apply for content
The present invention causes the technology that radial appearance hat is empty and shoulder is empty to be asked for above-mentioned radial tire undertread
Topic, a meridian tyre belted layer is proposed, can effectively avoid radial from the technical problem that hat is empty and shoulder is empty occur, carry
The high endurance quality and service life of radial；Present invention further propose that the production of a meridian tyre belted layer
It technique, can effectively avoid radial from the technical problem that hat is empty and shoulder is empty occur, improve the durability of radial
Energy and service life；Present invention further propose that a meridian line tyre, can effectively avoid the occurrence of the technology that hat is empty and shoulder is empty
Problem, there is higher endurance quality and service life.
In order to achieve the above object, the technical solution adopted by the present invention is：
One meridian tyre belted layer, including radially it is bonded the first belt of laying, second successively from inside to outside
Belt and the 3rd belt, the radial outer side of second belt are further equipped with zero-degree belt, the zero degree
Belt is located at the axial both sides of the 3rd belt respectively, and the axial end points edge of second belt deviates from circumferential center
The direction of line protrudes from the axial end points of first belt and zero-degree belt, the 3rd belt and nullity belt beam
The radial outer side of layer is further equipped with fibercord belt, and the axial both ends of the fibercord belt are positioned at described
Second belt it is axially external.
Preferably, the axial end points of the fibercord belt radially inner side with second belt vertically
Face is concordant.
Preferably, the axial end points of the fibercord belt is located at the footpath in the second belt radially inner side face
Downwards.
Preferably, between the axial end points of the fibercord belt axial end points corresponding to second belt
Spacing be 5mm-15mm；The zero-degree belt 24 is arranged to radially two layers.
Preferably, the fibercord belt is one layer or multilayer.
The production technology of one meridian tyre belted layer, for producing foregoing rotating radial tire belt on laminating drum
Layer, comprises the following steps：
S1：Lay first belt 21, the second belt 22 and the 3rd belt 23 successively on the laminating drum,
And the circumferential center line of first belt 21, the second belt 22 and the 3rd belt 23 is kept to align；
S2：Second belt 22 radial outer side and with the axial both sides corresponding positions of the 3rd belt 23
Put two zero-degree belts 24 of winding respectively；
S3：The fibercord band is laid in the radial outer side of the 3rd belt 23 and two zero-degree belts 24
Beam layer 25.
Preferably, in step S2, two zero-degree belts 24 circumferentially enclose by winding two.
Preferably, in step S2, the head end of two zero-degree belts 24 and the circumferentially overlapping length of tail end are
30mm-50mm。
Preferably, in step S3, the fibercord belt 25 circumferentially lays one layer or two layers.
One meridian line tyre, including carcass, further comprise foregoing radial tire undertread, the first band beam
Layer is layed in the radial outer side of the carcass, and tire shoulder pad is filled between the axial both ends of second belt and carcass
Glue, the radial outer side of the axial both ends of the fibercord belt respectively with the shoulder wedge are in contact.
Compared with prior art, the advantages and positive effects of the present invention are：
1st, radial tire undertread of the present invention, it passes through the radial direction in the 3rd belt and two zero-degree belts
Lateral surface lays fibercord belt, and the axial both ends of the fibercord belt is wrapped second belt
Axially external face, so as to reduce the stress size of radial tire undertread of the present invention, and then reduce the first band
Between beam layer and the second belt, between the second belt and the 3rd belt steel wire shear action, effectively prevent meridian
The line wheel tire rubber adjacent with steel wire at this cracks because of fatigue, and then it is empty empty with shoulder to reduce radial appearance hat
Technical problem, improve the endurance quality and service life of radial tire undertread.
2nd, the production technology of radial tire undertread of the present invention, it passes through in the 3rd belt and two nullity belts
The radial outer side laying fibercord belt of beam layer, and make the fibercord belt axial both ends wrap it is described
The axially external face of second belt, so as to reduce the stress size of second belt, and then reduce described first
Between belt and the second belt, between the second belt and the 3rd belt steel wire shear action, effectively prevent son
The radial tire rubber adjacent with steel wire at this cracks because of fatigue, and then reduces radial and hat sky and shoulder occur
Empty technical problem, improve the endurance quality and service life of radial tire undertread.
3rd, radial of the present invention, its fibercord belt and shoulder wedge enclose to form confined space and incite somebody to action together
First belt, the second belt, the 3rd belt and zero-degree belt wrap, further to reduce the first band
Between beam layer and the second belt, between the second belt and the 3rd belt steel wire shear action, reduce and steel at this
The risk that the adjacent rubber of silk cracks by fatigue damage, avoid radial and the phenomenon that hat is empty and shoulder is empty occur,
Further increase the endurance quality and service life of radial.
Brief description of the drawings
Fig. 1 is the structural representation of prior art radial tire undertread；
Fig. 2 is one of structural representation of radial tire undertread of the present invention；
Fig. 3 is the two of the structural representation of radial tire undertread of the present invention.
Above in each figure：11st, the first belt；12nd, the second belt；13rd, the 3rd belt；14th, zero-degree belt；
21st, the first belt；22nd, the second belt；23rd, the 3rd belt；24th, zero-degree belt；25th, fibercord
Layer；26th, carcass；27th, shoulder wedge；28th, tread rubber.
Embodiment
Below, the present invention is specifically described by exemplary embodiment.It should be appreciated, however, that do not entering one
In the case of step narration, element, structure and features in an embodiment can also be advantageously incorporated into other embodiment
In.
In the description of the invention, it is necessary to which explanation, circumferencial direction is circumferential, along the direction of radius for radially；And edge
The direction of radius increase is radially-inwardly for the direction radially outward, reduced along radius；The rotating shaft of tire for axially, vertically and
It is axial inner ends towards the direction of circumferential center line, is vertically and away from the direction of circumferential center line axial outer end；Cross tire
The section of rotating shaft is the horizontal section of tire, is the part-structure schematic diagram of horizontal section in Fig. 1, Fig. 2, Fig. 3, and Fig. 1, Fig. 2,
Horizontal direction in Fig. 3 is tire rotor shaft direction, and vertical direction is radial direction；Term " interior ", " outer ", " on ", " under ",
The orientation or position relationship of the instructions such as "front", "rear" are based on position relationship shown in the drawings, are for only for ease of and describe this hair
It is bright and simplify description, rather than instruction or imply that signified device or element must have specific orientation, with specific orientation
Construction and operation, therefore be not considered as limiting the invention.In addition, term " first ", " second ", " the 3rd " are only used for retouching
Purpose is stated, and it is not intended that instruction or hint relative importance.
As shown in Figure 2 and Figure 3, the present invention proposes a meridian tyre belted layer, including the first belt 21, the second band
Beam layer 22, the 3rd belt 23 and zero-degree belt 24, first belt 21, the second belt 22, the 3rd belt 23
Along tire radially fitting laying, and the first belt 21, the second belt 22, the week of the 3rd belt 23 successively from inside to outside
Align and set to center line.The radial outer side at the 22 axial both ends of the second belt is respectively arranged with zero-degree belt 24,
The zero-degree belt 24 is two, and two zero-degree belts 24 are respectively positioned at the axial direction two of the 3rd belt 23
Side.Second belt 22 is working lining, is main stressed member, and the axial end points of second belt 22 is along away from week
The axial end points of first belt 21 and zero-degree belt 24 is protruded to the direction of center line, i.e., described second band beam
The axial width of layer 22 is more than the axial width of first belt 21, while the axial width of second belt 22 is big
In the 3rd belt 23 and two axial widths of zero-degree belt 24 and.3rd belt 23 and zero-degree belt
24 radial outer side is further equipped with fibercord belt 25, and the axial both ends of the fibercord belt 25 are located at
Second belt 22 it is axially external, i.e., described fibercord belt 25 is by the axially external of second belt 22
Bread wraps.
The radial tire undertread of the present invention, it passes through in the 3rd belt 23 and two zero-degree belts 24
Radial outer side laying fibercord belt 25, and the axial both ends of the fibercord belt 25 is wrapped described the
The axially external face of two belts 22, so as to reduce the stress size of second belt 22, and then reduce described
Between one belt 11 and the second belt 12, between the second belt 12 and the 3rd belt 13 steel wire shear action, have
Effect avoids the radial rubber adjacent with steel wire at this and cracked because of fatigue, and then reduces radial and go out
The technical problem that now hat is empty and shoulder is empty, improve the endurance quality and service life of radial tire undertread.
With continued reference to Fig. 2, Fig. 3, in order to ensure the fibercord belt 25 by the axial direction of second belt 22
Lateral surface parcel is complete, and the axial end points of the fibercord belt 25 is inside with the footpath of second belt 22 vertically
Side is concordant, or the axial end points of the fibercord belt 25 is located at the footpath in the radially inner side face of the second belt 22
Downwards.
Further, the axial direction of the axial end points of the fibercord belt 25 the second belt 22 adjacent with the end points
Spacing between end points is 5mm-15mm, to be adapted to the radial tire undertread of different model, ensures the fibercord
The axial end points of belt 25 is located at the axially external of second belt 22, and the fibercord belt 25 is by institute
The axially external bread for stating the second belt 22 wraps.
Preferably, the zero-degree belt 24 is arranged to radially two layers, the fibercord belt 25 may be configured as
Radially one layer or two layers.
In order to further improve the stress performance of radial tire undertread of the present invention, first belt 21, second
Belt 22, the 3rd belt 23 and zero-degree belt 24 are steel belt, and the fibercord belt 25 is nylon
Fiber or other fiber belts.
Present invention further propose that the production technology of a meridian tyre belted layer, foregoing for being produced on laminating drum
Radial tire undertread, comprise the following steps：
S1：Lay first belt 21, the second belt 22 and the 3rd belt 23 successively on the laminating drum,
The circumferential center line of first belt 21, the second belt 22 and the 3rd belt 23 is kept to align during fitting；
S2：Second belt 22 radial outer side and with the axial both sides corresponding positions of the 3rd belt 23
Put and wind the zero-degree belt 24 respectively；
S3：The fibercord band is laid in the radial outer side of the 3rd belt 23 and two zero-degree belts 24
Beam layer 25.
The production technology of radial tire undertread of the present invention, it passes through in the 3rd belt 23 and two nullity belts
The radial outer side laying fibercord belt 25 of beam layer 24, and wrap up the axial both ends of the fibercord belt 25
The axially external face of the second belt 22 is stated in residence, so as to reduce the stress size of second belt 22, and then is weakened
Between the belt 22 of first belt 21 and second, between the second belt 22 and the 3rd belt 23 steel wire shearing
Effect, it effectively prevent the radial rubber adjacent with steel wire at this and cracked because of fatigue, and then reduce meridian
There is the technical problem that hat is empty and shoulder is empty in line wheel tire, improves the endurance quality and service life of radial tire undertread.
Preferably, in step S1, first belt 21, the second belt 22 and the 3rd belt 23 are laid respectively
One layer, and keep the head and the tail both ends of first belt 21 to be mutually butted, the head and the tail both ends difference of second belt 22
Docking, the head and the tail both ends of the 3rd belt 23 are docked respectively.
Preferably, in step S2, two zero-degree belts 24 circumferentially enclose by winding two, to improve rotating radial
Wear resistance at tire tire shoulder.
Further, in step S2, when winding the zero-degree belt 24, the head end and tail end of the zero-degree belt 24
Circumferentially overlapping length be 30mm-50mm.
Preferably, in step S3, the fibercord belt 25 circumferentially lays one layer or two layers.
Present invention further propose that a meridian line tyre, including carcass 26 and foregoing radial tire undertread, institute
State the first belt 21, the second belt 22 and the 3rd belt 23 and be radially layed in the carcass 26 successively from inside to outside
In radial outer side, because the axial width of second belt 22 is most wide, second belt 22 is axially protruded in institute
State and shoulder wedge 27, the axle of the fibercord belt 25 are filled between the part of the first belt 21 and the carcass 26
It is located at respectively to both ends in the radial outer side of the shoulder wedge 27 and connects with the radial outer side of the shoulder wedge 27
Touch, the fibercord belt 25 and shoulder wedge 27 enclose together to be formed confined space and by first belt 21,
Second belt 22, the 3rd belt 23 and zero-degree belt 24 wrap, further to reduce first belt 21,
The stress of two belts 22, the 3rd belt 23 and zero-degree belt 24, and then reduce the band of the first belt 21 and second
Between beam layer 22, between the second belt 22 and the 3rd belt 23 steel wire shear action, reduce adjacent with steel wire at this
The risk that is cracked by fatigue damage of rubber, avoid radial and the phenomenon that hat is empty and shoulder is empty occur, further
Improve the endurance quality and service life of radial.
Radial of the present invention, its fibercord belt 25 and shoulder wedge 27 enclose to form confined space simultaneously together
First belt 21, the second belt 22, the 3rd belt 23 and zero-degree belt 24 are wrapped, further to reduce
Between the belt 22 of first belt 21 and second, between the second belt 22 and the 3rd belt 23 steel wire shearing make
With reducing the risk that the rubber adjacent with steel wire at this cracks by fatigue damage, avoid radial
The phenomenon that hat is empty and shoulder is empty, further increase the endurance quality and service life of radial
With continued reference to Fig. 2, Fig. 3, the radial outer side of fibercord belt 25 is further equipped with to connect with road surface
Tactile tread rubber 28, the axial width of second belt 22 is the 85%-95% of the tread width, to ensure the son
The bearing capacity of radial tire, the axial direction of the axial end points of first belt 21, second belt 22 adjacent with the end points
Spacing between end points is 10-20mm, to be further ensured that the bearing capacity of the radial.
Further, the axial width of the zero-degree belt 24 is the axial width of second belt 22
10%-20%, and between the axial outer end point axial end points corresponding to first belt 21 of the zero-degree belt 24
Spacing is -5mm-5mm, and the 3rd belt 23 is arranged between two zero-degree belts 24, the 3rd belt
Gap about 1mm between the 23 axial end points zero-degree belt axial inner ends point adjacent with the end.
Claims (10)
1. a meridian tyre belted layer, including radially it is bonded the first belt (21) of laying, successively from inside to outside
Two belts (22) and the 3rd belt (23), the radial outer side of second belt (22) are further equipped with nullity belt
Beam layer (24), the zero-degree belt (24) are located at the axial both sides of the 3rd belt (23) respectively, it is characterised in that：Institute
State the axial end points of the second belt (22) along away from the direction of circumferential center line protrude from first belt (21) and
The radial outer side of the axial end points of zero-degree belt (24), the 3rd belt (23) and zero-degree belt (24) is further
Fibercord belt (25) is equipped with, the axial both ends of the fibercord belt (25) are located at second belt
(22) axially external.
2. radial tire undertread according to claim 1, it is characterised in that：The fibercord belt (25)
Axial end points is concordant with the radially inner side face of second belt (22) vertically.
3. radial tire undertread according to claim 1, it is characterised in that：The fibercord belt (25)
Axial end points is located at the second belt (22) radially inner side face radially below.
4. according to the radial tire undertread described in claim any one of 1-3, it is characterised in that：The fibercord band beam
Spacing between the axial end points axial end points corresponding to second belt (22) of layer (25) is 5mm-15mm.
5. radial tire undertread according to claim 1, it is characterised in that：The fibercord belt (25) sets
It is set to radially one layer or multilayer；The zero-degree belt (24) is arranged to radially two layers.
6. the production technology of a meridian tyre belted layer, for being produced on laminating drum such as any one of claim 1-5 institutes
The radial tire undertread stated, it is characterised in that：Comprise the following steps：
S1：Lay first belt (21), the second belt (22) and the 3rd belt successively on the laminating drum
(23), and the circumferential center line of first belt (21), the second belt (22) and the 3rd belt (23) is kept to align；
S2：Second belt (22) radial outer side and with the axial both sides corresponding positions of the 3rd belt (23)
Put two zero-degree belts (24) of winding respectively；
S3：The fibercord band is laid in the radial outer side of the 3rd belt (23) and two zero-degree belts (24)
Beam layer (25).
7. the production technology of radial tire undertread according to claim 6, it is characterised in that：In step S2, two
The zero-degree belt (24) circumferentially enclose by winding two.
8. the production technology of radial tire undertread according to claim 7, it is characterised in that：In step S2, two
The circumferentially overlapping length of zero-degree belt (24) head end and tail end is 30mm-50mm.
9. the production technology of radial tire undertread according to claim 6, it is characterised in that：It is described in step S3
Fibercord belt (25) circumferentially lays one layer or two layers.
10. a meridian line tyre, including carcass (26), it is characterised in that：Further comprise such as any one of claim 1-5 institutes
The radial tire undertread stated, first belt (21) are layed in the radial outer side of the carcass (26), and described
Shoulder wedge (27), the fibercord belt (25) are filled between the axial both ends of two belts (22) and carcass (26)
Radial outer side of the axial both ends respectively with the shoulder wedge (27) be in contact.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710698264.2A CN107499064A (en) | 2017-08-15 | 2017-08-15 | Radial tire undertread and its production technology, radial |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710698264.2A CN107499064A (en) | 2017-08-15 | 2017-08-15 | Radial tire undertread and its production technology, radial |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107499064A true CN107499064A (en) | 2017-12-22 |
Family
ID=60690814
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710698264.2A Pending CN107499064A (en) | 2017-08-15 | 2017-08-15 | Radial tire undertread and its production technology, radial |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107499064A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110001293A (en) * | 2019-05-07 | 2019-07-12 | 江苏通用科技股份有限公司 | A kind of stepped tire belt structure of combination |
| CN114851781A (en) * | 2022-04-20 | 2022-08-05 | 通力轮胎有限公司 | Heavy-load radial tire and manufacturing method thereof |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102114756A (en) * | 2011-02-23 | 2011-07-06 | 杭州中策橡胶有限公司 | All-steel loading radial tire with zero-degree belted layer structure |
| CN202727889U (en) * | 2012-08-02 | 2013-02-13 | 青岛黄海橡胶股份有限公司 | Puncture-proof truck tire |
| CN207140700U (en) * | 2017-08-15 | 2018-03-27 | 青岛双星轮胎工业有限公司 | Radial tire undertread and radial |
-
2017
- 2017-08-15 CN CN201710698264.2A patent/CN107499064A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102114756A (en) * | 2011-02-23 | 2011-07-06 | 杭州中策橡胶有限公司 | All-steel loading radial tire with zero-degree belted layer structure |
| CN202727889U (en) * | 2012-08-02 | 2013-02-13 | 青岛黄海橡胶股份有限公司 | Puncture-proof truck tire |
| CN207140700U (en) * | 2017-08-15 | 2018-03-27 | 青岛双星轮胎工业有限公司 | Radial tire undertread and radial |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110001293A (en) * | 2019-05-07 | 2019-07-12 | 江苏通用科技股份有限公司 | A kind of stepped tire belt structure of combination |
| CN114851781A (en) * | 2022-04-20 | 2022-08-05 | 通力轮胎有限公司 | Heavy-load radial tire and manufacturing method thereof |
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| PB01 | Publication | ||
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Application publication date: 20171222 |