CN106739831A - A kind of semi-steel radial pneumatic tire and its shaped device - Google Patents
A kind of semi-steel radial pneumatic tire and its shaped device Download PDFInfo
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- CN106739831A CN106739831A CN201611218434.4A CN201611218434A CN106739831A CN 106739831 A CN106739831 A CN 106739831A CN 201611218434 A CN201611218434 A CN 201611218434A CN 106739831 A CN106739831 A CN 106739831A
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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
- B60C9/1807—Structure or arrangement of belts or breakers, crown-reinforcing or cushioning layers comprising fabric reinforcements
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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
- B29D30/20—Building tyres by the flat-tyre method, i.e. building on cylindrical drums
- B29D30/24—Drums
-
- 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
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Tires In General (AREA)
Abstract
In the pneumatic tire provided this application provides a kind of semi-steel radial pneumatic tire and its shaped device, the present invention, tire circumferential direction is provided with steel wire reinforcement layer in the steel belt radially outer, the steel wire reinforcement layer is wound by all-steel cord.In tire building process of the present invention, in winding steel wire enhancement layer, need to be identical using the depression at specific assembly drum, i.e. tire shoulder with predetermined shape, position of its shape with steel wire reinforcement layer in tire.The belt reinforcing layer of tire of the present invention includes steel wire, and it has low elongation and high-modulus, can assign tire belt binding force higher, prevents tire deformation in the process of moving, and the riding stability of tire is strengthened.Simultaneously as steel wire there can be binding force higher under relatively low deformation, tire can be made just to have under lower-speed state high handling.In addition, the durability of tire of the present invention is also preferable, the use requirement of car high-performance meridian tire can be preferably met.
Description
Technical field
The present invention relates to tyre technology, more particularly to a kind of semi-steel radial pneumatic tire and its shaped device.
Background technology
Tire is mainly the annular elastic rubber product that the ground connection assembled on various vehicles rolls, and Hyundai Motor is most absolutely
Number uses pneumatic tire.Radial is that body cord is arranged by meridian direction, there is cord circumferential array or close
The cushion of circumferential array tightly binds round a kind of novel tire on carcass, and it is by tyre surface, carcass, sidewall, cushion or band beam
Layer, tyre bead, inner liner or inner liner, this six major part compositions.Radial changes stress because scientific and reasonable for structure
It is kind, there are many excellent performances than diagonal-ply tire.Different with cord material used by belt according to carcass, radial can
It is divided into three kinds：Whole steel wire radial tyre, semi-steel wire radial tire and Whole fiber radial.
Different from the steel wire carcass material of load-carrying class all-steel radial tyre, the carcass of semi-steel radial tire selects resin
Fibrous material, it is suitable for use as the light truck tires such as car, underloading truck.From structure, semi-steel radial tire is included a pair
Tire lip wire loop, is symmetrically distributed in tire axial both sides；Tire lip wire loop is by the layer connection of at least one of which resin fibre.Resin is fine
Dimension layer tire radial outside arrangement at least one of which steel belt, usually 2 layers；The winding of steel belt radial outside is circumferential fine
Dimension enhancement layer；Fiber-reinforced layer tire radial outside arranges tread rubber layer；Tread rubber layer passes through sidewall with tire lip wire loop
Glue is connected；Sidewall rubber is covered in resin fibre layer above.
In the prior art, in shaping, the assembly drum surface of laying steel belt and belt enhancement layer is tire mostly
The damaged surface of class cylinder.Belt winds in its cylinder damaged surface, its in damaged surface any point apart from cylinder
The distance of scapus center line is equal, as shown in figure 1, Fig. 1 is the shaped device schematic diagram of tire in the prior art.Assembly drum is existing
There is a main equipment in tire building machinery, it passes through transmission mechanism and provides rotational power by motor, and is combined with other
Semi-products material supply mechanism, such as steel belt, the feeding machanism of belt reinforcing layer and tread rubber etc..Steel belt and
Tread rubber etc. is generally layered form, and belt reinforcing layer is generally the layered form with one fixed width (0.1-25mm).It had been molded
Cheng Zhong, by the rotation of assembly drum, material requested is wrapped in assembly drum surface successively, forms predetermined semi-products.Wherein, assembly drum
Surface is made up of at least one lamella more, and this lamella can to a certain degree be stretched in radial direction, can make assembly drum surface
With variable external diameter, to facilitate the semi-products after batching to take out.
With the development of automotive engineering, the carrying out of construction of road and bridge, car speed more and more higher, this is just to car half steel
The driving safety of radial tire and the higher and higher requirement of handling proposition.And change the material and performance of tire reinforcing cord
It is one of direction, the band beam on the outside of the steel belt of usual two-layer is arranged at this stage, in semi-steel radial tire and is increased
Nylon, i.e. polyamide being used strong layer more.This nylon belt reinforcing layer has the characteristic of thermal contraction, can suppress tire and be expert at
It is radially enlarged during sailing, keep the riding stability of tire.But, it is in low extensibility, and modulus is smaller, binding force
Difference, is unfavorable for the riding stability of tire and handling.
The content of the invention
In view of this, the application provides a kind of semi-steel radial pneumatic tire and its shaped device, the half of present invention offer
Steel pneumatic radial tire has preferable dimensional stability, is conducive to improving tire stability in the process of moving and manipulation
Property.
The application provides a kind of semi-steel radial pneumatic tire, and resin fibre layer tire radial outside is provided with pierce tap
Beam layer, steel wire reinforcement layer is provided with the steel belt radially outer along tire circumferential direction, steel wire reinforcement layer by
All-steel cord is wound.
Preferably, the steel belt is two-layer belt；The angle of the two-layer belt is 18 °~45 °.
Preferably, the steel wire reinforcement layer is wound by the all-steel cord of a diameter of 0.2mm~2.0mm.
Preferably, the all-steel cord is in regular curve form after glue is covered, and the regular curve meets the condition of formula 1：
1.01 ＜ L1/L0The formulas 1 of ＜ 1.10；
In formula 1, L0For a regular curve conversion circulates two that all-steel cord intersects with its bearing of trend central line
Air line distance between end points；
L1Between two end points intersected with its bearing of trend central line for a regular curve conversion circulation all-steel cord
All-steel cord length.
Preferably, the regular curve meets the condition of formula 2：
0.01 ＜ L1/L0-R1/R2The formulas 2 of ＜ 0.05；
In formula 2, R1It is the radius of a circle of ring-type steel wire reinforcement layer in finished tire；
R2The radius of a circle of annular steel wire enhancement layer during for tire building.
Preferably, steel wire reinforcement layer along the width on tire axial direction for steel belt width 10%~
130%；The steel wire reinforcement layer and the circumferential angle of tire are 0~10 degree.
Preferably, steel wire reinforcement layer, the steel are wound with along tire circumferential direction in the steel belt radially outer
Silk enhancement layer covers whole tyre surface steel belt, and the steel wire reinforcement layer tire radially outer is crown；
Or, it is wound with along the shoulder zone or tyre surface center of tire circumferential direction in the steel belt radially outer
Steel wire reinforcement layer, remaining position is wound with resin fibre enhancement layer；
Or, resin fibre enhancement layer is wound with along tire circumferential direction in the steel belt radially outer, it is described
Resin fibre enhancement layer covers whole tyre surface steel belt, in the resin fibre enhancement layer radially outer along tire circumference side
To shoulder zone or tyre surface center additional windings have steel wire reinforcement layer.
The application provides a kind of shaped device of semi-steel radial pneumatic tire, for winding semi-steel radial pneumatic tire
Semi-products material, including assembly drum and the driving equipment for driving assembly drum, wherein, have at the tire shoulder of the assembly drum surface
Arc-shaped recess.
Preferably, the arc diameter of the arc-shaped recess is 15mm~100mm, arc-shaped recess bottom distance winding half
The height on product material surface is 5mm~25mm.
Preferably, the periphery width of the assembly drum winding semi-products material is 205mm~300mm.
Compared with prior art, in the semi-steel radial pneumatic tire that the present invention is provided, in the steel belt radially
Outside that tire circumferential direction is provided with steel wire reinforcement layer, the steel wire reinforcement layer is wound by all-steel cord.Present invention wheel
In tire forming process, in winding steel wire enhancement layer, the depression at specific assembly drum, i.e. tire shoulder with predetermined shape need to be used,
Position of its shape with steel wire reinforcement layer in tire is identical.The belt reinforcing layer of tire of the present invention includes steel wire, and it has low
Elongation percentage and high-modulus, can assign tire belt binding force higher, prevent tire deformation in the process of moving, tire
Riding stability is strengthened.Simultaneously as steel wire there can be binding force higher under relatively low deformation, tire can be made to exist
Just have under lower-speed state high handling.In addition, the durability of tire of the present invention is also preferable, car can be preferably met high
The use requirement of performance radial.
Brief description of the drawings
Fig. 1 is the shaped device schematic diagram of tire in the prior art；
Fig. 2 is one layer of angle schematic diagram of belt in embodiment of the present invention tire；
Fig. 3 is the angle schematic diagram of another steel belt in embodiment of the present invention tire；
Fig. 4 is the structural representation of tire in first kind embodiment of the present invention；
Fig. 5 is the structural representation of tire in Equations of The Second Kind embodiment of the present invention；
Fig. 6 is the structural representation of tire in the 3rd class embodiment of the invention；
Fig. 7 is the structural representation of tire in the 4th class embodiment of the invention；
Fig. 8 is the structural representation of tire in the 5th class embodiment of the invention；
Fig. 9 is that the all-steel cord of steel wire reinforcement layer in some embodiments of the invention covers the form schematic diagram after glue；
Figure 10 is that the all-steel cord of steel wire reinforcement layer in other embodiments of the invention covers the form schematic diagram after glue；
Figure 11 is the structure diagram of shaped device provided in an embodiment of the present invention；
Figure 12 is the schematic surface of assembly drum in the embodiment of the present invention.
Specific embodiment
The technical scheme in the embodiment of the present application is clearly and completely described below, it is clear that described embodiment
Only a part of embodiment of the invention, rather than whole embodiments.Based on the embodiment in the application, the common skill in this area
The every other embodiment that art personnel are obtained under the premise of creative work is not made, belongs to the model of the application protection
Enclose.
The invention provides a kind of semi-steel radial pneumatic tire, resin fibre layer tire radial outside is provided with steel wire
Belt, steel wire reinforcement layer, the steel wire reinforcement layer are provided with the steel belt radially outer along tire circumferential direction
It is wound by all-steel cord.
The semi-steel radial pneumatic tire that the present invention is provided has preferably handling and riding stability etc., can be preferably
Meet the use requirement by bus with high-performance (HP or UHP) semi-steel radial tire.
The pneumatic tire that the present invention is provided is semi-steel radial tire, and it is suitable for use as the underloading wheels such as car, underloading truck
Tire, carcass selects resin fibre material.The resin fibre material can be：Polyamide (nylon series etc.) fiber, gathers
Ester (PET, PBT, PEN etc.) fiber, aramid fiber (poly terephthalic acid p-phenylenediamine fiber) fiber, polyketone fiber, super high molecular weight
Polyethylene fibre, ultra-high molecular weight polyethylene alcohol fiber, carbon fiber gathers to Ben Ji bis- oxazole (PBO) fiber, the fiber such as artificial silk
And its blend fibre, the present invention is not particularly limited.
The semi-steel radial tire that the present invention is provided includes a pair of tire lip wire loops, is symmetrically distributed in tire axial both sides；
Tire lip wire loop is by the layer connection of at least one of which resin fibre, resin fibre layer tire radial outside arrangement at least one of which pierce tap
Beam layer.Present invention arrangement tread rubber layer, tread rubber layer is connected with tire lip wire loop by sidewall rubber；Sidewall rubber is covered in tree
Above fat fibrage.
The present invention is not particularly limited to tire lip wire loop, resin fibre layer and rubber for tire etc., using art technology
Tyre element known to personnel.Wherein, steel belt described in the embodiment of the present invention is two-layer belt.The two-layer band
The angle of beam layer can be 18 °~45 °, preferably 20 °~38 °.
The present invention is to the angle of the two-layer belt it should be noted that meridianal steel belt semi-products are in system
When taking, all-steel cord and steel belt length direction (generally refer to two angles in less that) at a certain angle are flat
Row arrangement, as shown in Fig. 2 Fig. 2 is one layer of angle schematic diagram of belt in embodiment of the present invention tire.In Fig. 2, center line table
Show the length direction of steel belt.
When tire building, steel belt is circumferentially provided on the tire of the resin fibre layer of tire radially along its length
Outside.So, the circumferential coincidence of the length direction and tire of steel belt.The angle of so-called steel belt can be regarded as
It is to constitute the all-steel cord of belt with less angle in two angles of the composition side of tire circumference.Meanwhile, should be noted
It is that two-layer belt interfolded is arranged on tire, as shown in figure 3, Fig. 3 is another steel in embodiment of the present invention tire
The angle schematic diagram of silk belt.In embodiments of the present invention, whose upper whose the lower setting of the steel belt of both direction is not solid
It is fixed.
The present invention is provided with steel wire reinforcement layer in the steel belt radially outer along tire circumferential direction, and it has low
Elongation percentage and high-modulus, can assign tire belt binding force higher, prevent tire deformation in the process of moving, tire
Riding stability is strengthened.Simultaneously as steel wire there can be binding force higher under relatively low deformation, tire can be made to exist
Just have under lower-speed state high handling.
Referring to Fig. 4, Fig. 4 is the structural representation of tire in first kind embodiment of the present invention, wherein, 11 is a pair of tire lip steel
Wire ring, 12 is resin fibre layer, and 13 is sidewall, and 14a is steel belt ground floor, and 14b is the steel belt second layer, and 16 are
Steel wire reinforcement layer, 17 is crown.
In first kind embodiment of the invention, it is wound with along tire circumferential direction in the steel belt radially outer
Steel wire reinforcement layer 16, the steel wire reinforcement layer whole tyre surface steel belt of covering, the steel wire reinforcement layer tire radially outer
It is crown.Directly application steel wire reinforcement layer replaces resin fibre enhancement layer to this kind of embodiment, makes the directly covering of steel wire reinforcement layer
Whole tread belt, excellent size stability.
Referring to Fig. 5, Fig. 5 is the structural representation of tire in Equations of The Second Kind embodiment of the present invention, wherein, 21 is a pair of tire lip steel
Wire ring, 22 is resin fibre layer, and 23 is sidewall, and 24a is steel belt ground floor, and 24b is the steel belt second layer, and 25 are
Resin fibre enhancement layer, 26 is steel wire reinforcement layer, and 27 is crown.
In Equations of The Second Kind embodiment of the invention, the steel belt radially outer along tire circumferential direction tire shoulder
Place is wound with steel wire reinforcement layer 26, and remainder is wound with resin fibre enhancement layer 25.This kind of embodiment is big in deformation extent
Shoulder zone winding steel wire enhancement layer, remaining position winding resin fibre enhancement layer, can so strengthen shoulder region binding force.
Referring to Fig. 6, Fig. 6 is the structural representation of tire in the 3rd class embodiment of the invention, wherein, 31 is a pair of tire lip steel
Wire ring, 32 is resin fibre layer, and 33 is sidewall, and 34a is steel belt ground floor, and 34b is the steel belt second layer, and 35 are
Resin fibre enhancement layer, 36 is steel wire reinforcement layer, and 37 is crown.In the 3rd class embodiment of the invention, in the pierce tap
Beam layer radially outer is wound with steel wire reinforcement layer 36 along the tyre surface center of tire circumferential direction, and remaining position is wound with resin fibre
Enhancement layer 35.This kind of embodiment only in centre winding steel wire enhancement layer, to improve the binding force of enhancement layer.
Referring to Fig. 7, Fig. 7 is the structural representation of tire in the 4th class embodiment of the invention, wherein, 41 is a pair of tire lip steel
Wire ring, 42 is resin fibre layer, and 43 is sidewall, and 44a is steel belt ground floor, and 44b is the steel belt second layer, and 45 are
Resin fibre enhancement layer, 46 is steel wire reinforcement layer, and 47 is crown.In the 4th class embodiment of the invention, in the pierce tap
Beam layer radially outer is wound with resin fibre enhancement layer 45 along tire circumferential direction, and the resin fibre enhancement layer covers whole tire
Face steel belt, has steel in the resin fibre enhancement layer radially outer along the shoulder zone additional windings of tire circumferential direction
Silk enhancement layer 46.
Referring to Fig. 8, Fig. 8 is the structural representation of tire in the 5th class embodiment of the invention, wherein, 51 is a pair of tire lip steel
Wire ring, 52 is resin fibre layer, and 53 is sidewall, and 54a is steel belt ground floor, and 54b is the steel belt second layer, and 55 are
Resin fibre enhancement layer, 56 is steel wire reinforcement layer, and 57 is crown.In the 5th class embodiment of the invention, in the pierce tap
Beam layer radially outer is wound with resin fibre enhancement layer 55 along tire circumferential direction, and the resin fibre enhancement layer covers whole tire
Face steel belt, has steel in the resin fibre enhancement layer radially outer along the tyre surface center additional windings of tire circumferential direction
Silk enhancement layer 56.
Above-mentioned 4th class and the 5th class embodiment are that on the basis of existing tire, part is extra in the range of tread width
Winding steel wire enhancement layer.Present invention preferably employs the set-up mode of steel wire reinforcement layer in the first kind or Equations of The Second Kind embodiment, tire
Combination property is preferable.
In the present invention, the steel wire reinforcement layer is the curved pierce tap with high-modulus and certain pre-stretched rate, along wheel
Tire is circumferentially disposed at tire belt radially outer as reinforcement, and it is wound by all-steel cord, preferably by diameter
For the all-steel cord of 0.2mm~2.0mm is wound.The all-steel cord is to pass through certain way by least one finer wire
Winding twisting is obtained, wherein, the diameter d of finer wire0Can be 0.1mm~1.0mm.Steel wire of the present invention refers to material selection
Steel, it is optional by intensity point NT (regular tenacity steel cord, 2800 MPas), HT (high strength steel cord, 3200 MPas), ST (superelevation
Intensity steel cord, 3600 MPas), the type such as UT (Extra High Strength steel cord, 4000 MPas), wherein intensity sequence is NT<HT<ST
<UT；Present invention preferably employs the all-steel cord of more than HT.
In an embodiment of the present invention, the all-steel cord is in regular curve form after glue is covered.Preferably, the rule
Then curve meets the condition of formula 1：1.01 ＜ L1/L0The formulas 1 of ＜ 1.10；
In formula 1, L0For a regular curve conversion circulates two that all-steel cord intersects with its bearing of trend central line
Air line distance between end points；L1For a regular curve conversion circulates all-steel cord intersects with its bearing of trend central line two
All-steel cord length between individual end points.
The form after glue is covered referring to the all-steel cord that Fig. 9 and Figure 10, Fig. 9 are steel wire reinforcement layer in some embodiments of the invention
Schematic diagram, Figure 10 is that the all-steel cord of steel wire reinforcement layer in other embodiments of the invention covers the form schematic diagram after glue.Fig. 9
In, dotted line is all-steel cord bearing of trend, and a1 and b1 is respectively regular curve conversion circulation all-steel cord and its side of extension
To two end points that central line intersects, wherein comprising a curve conversion circulation, the length of curve between a1 and b1 is steel wire
Cord length L1, the air line distance between a1 and b1 is L0.In Figure 10, dotted line is all-steel cord bearing of trend, and a2 and b2 are respectively
Two end points that one regular curve conversion circulation all-steel cord intersects with its bearing of trend central line.
In a preferred embodiment of the invention, air line distance L0With all-steel cord length L1Both proportionate relationship E meet：
1.01 ＜ E=L1/L0＜ 1.10.The conversion of this curve is in order that the certain pre-stretched rate of steel wire holding, makes it be molded or inflate
When, tire is radially expanded, and resistance to grand steel wire can carry out certain deformation to buffer stress under tyre surface, prevent it to be broken under stress.
In an embodiment of the present invention, the curve conversion of steel wire should not have acute angle class to convert, it should be with certain radian
Curve conversion；Curve conversion should have certain regular cycles, and during so that steel wire cutting, pre-stretched rate is fixed, and prevent from answering
Power is concentrated.The conversion of this rule should not be limited to the conversion of known waveform and sawtooth conversion, and any other without acute angle have radian
Regular cyclic conversion can also apply.
Additionally, the regular curve preferably meets the condition of formula 2：0.01 ＜ L1/L0-R1/R2The formulas 2 of ＜ 0.05；
In formula 2, R1It is the radius of a circle of ring-type steel wire reinforcement layer in finished tire；R2Annular steel wire increases during for tire building
The radius of a circle of strong layer.
In the present invention, expansion rate S refers to the radius R of the circumference that ring-type belt enhancement layer is constituted in finished tire1
The radius of a circle R that tire belt enhancement layer during with tire building on assembly drum is constituted2Ratio S=R1/R2.As excellent
Choosing, in tire of the present invention, 0.01<E-S<0.05.
In an embodiment of the present invention, the steel wire reinforcement layer is that steel belt is wide along the width on tire axial direction
The 10%~130% of degree, preferably 20%~100%.The steel wire reinforcement layer angle circumferential with tire can be 0~10 degree,
Preferably 0~5 degree.In the present invention, steel wire reinforcement layer is in winding, and its angle circumferential with tire should be 0 ° in principle, but
Be because tire belt has a width, and moulding process influence, exist between steel wire reinforcement layer and tire circumferential direction
Less angle, it is more between 0-5 degree.
In tire building process of the present invention, in winding steel wire enhancement layer, need to use has at specific assembly drum, i.e. tire shoulder
The depression of predetermined shape, position of its shape with steel wire reinforcement layer in tire is identical.The embodiment of the present application provides a kind of half
The shaped device of steel pneumatic radial tire, for winding semi-steel radial pneumatic tire semi-products material, including assembly drum and
Driving equipment for driving assembly drum, wherein, there is arc-shaped recess at the tire shoulder of the assembly drum surface.
Referring to Figure 11, Figure 11 is the structure diagram of shaped device provided in an embodiment of the present invention.The embodiment of the present invention is provided
Shaped device include assembly drum, as shown in Figure 11 steel band cylinder.It is required by the rotation of assembly drum in forming process
Material such as steel belt, belt reinforcing layer, tread rubber etc. are wrapped in assembly drum surface successively, form predetermined tire semi-products.
Wherein, assembly drum surface is made up of at least one lamella more, and this lamella can to a certain degree be stretched in radial direction, can be made
Assembly drum surface has variable external diameter, to facilitate the semi-products after batching to take out.Assembly drum is divided into by its types of profiles：Drum
Formula, half drum-type, core wheeled and semi-core wheeled several types, the embodiment of the present invention can select drum-type assembly drum.
In the present invention, there is arc-shaped recess at the tire shoulder of the assembly drum surface.That is, assembly drum of the present invention is in cylinder scapus
During the winding of strips layer of body surface face, can be in the belt edges position of winding, with the curved surfaces extended to its center.This
Class assembly drum is applied to belt reinforcing layer of the winding with low elongation and high-modulus class, can improve it and be wound in belt edges
When the low shortcoming of binding force.
Figure 12 is the schematic surface of assembly drum in the embodiment of the present invention, and as shown in figure 12, the assembly drum is in winding band
Beam layer marginal position is at tire shoulder, with the arc table that an arc diameter extends in a range of arc to its center
Face, that is, arc-shaped recess.Referring to Figure 12, the arc diameter R of the arc-shaped recess can be 15mm~100mm, preferably 20mm
~80mm.The height H of the arc-shaped recess bottom distance winding semi-products material surface can be 5mm~25mm, preferably 10mm
~20mm.In an embodiment of the present invention, the periphery width W of the assembly drum winding semi-products material can be 205mm
~300mm.
The present invention is not particularly limited to assembly drum internal structure, using structure design commonly used in the art.This hair
The shaped device of bright offer includes driving equipment, can provide rotational power by motor by transmission mechanism, drives assembly drum to turn
It is dynamic.The embodiment of the present invention is combined with other semi-products material supply mechanisms, such as steel belt, belt reinforcing layer and tread rubber
Deng feeding machanism.In the present invention, the driving equipment and feeding machanism etc. use structural establishment commonly used in the art.
In an embodiment of the present invention, the forming process of a tire is broadly divided into following steps：
1st, the semi-products at each position of tire are prepared；
2nd, first assembly drum curling inner liner, resin fibre layer, sidewall rubber etc., second assembly drum curled wire band beam
Layer, belt reinforcing layer and crown etc..Finally, two parts and tire lip steel wire are inflated by folding, and the step such as rolling is bonded in one
Rise, obtain tire semi-products；
3rd, unvulcanized tire is the heat cure in a mold of tire semi-products, obtains tire.
Wherein, embodiment of the present invention tire sidewall and tread rubber are all rubber compositions, by rubber, filler and various rubber
Additive is constituted.Generally, tread rubber is using rubber, the filler such as carbon black or silica, and various rubber such as SBR, BR and NR
Additive mixing composition.Generally using rubbers such as BR and NR, carbon black is main stuffing to tyre bead glue, can also add the nothings such as silica
Machine filler, and other various rubber additive compositions.Rubber additive includes：Such as processing aid, age resistor, activating agent,
Vulcanizing agent, vulcanization accelerator etc. are constituted.Inner liner is generally also to be made up of rubber composition, but its rubber be by butyl rubber or
Halogenated butyl glue and NR etc. are constituted, and filler is usually carbon black, calcium carbonate, mica sheet etc., and rubber additive.
The invention mainly relates to second assembly drum in itself with its curly course, in this forming process winding steel wire enhancing
Layer.The steel wire reinforcement layer is wound by all-steel cord, with low elongation and high-modulus, can assign tire belt higher
Binding force, prevent tire deformation in the process of moving, the riding stability of tire is strengthened.Simultaneously as steel wire exists
There can be binding force higher under relatively low deformation, tire can be made just to have under lower-speed state high handling.
When embodiment of the present invention shaped device works, the content such as canoe of steel wire reinforcement layer is as it was previously stated, herein
No longer repeat one by one.Such as, in tire building process of the present invention, during steel wire reinforcement layer winding, it is on tire axial direction
Width can be the 10%~130% of tire belt width；Its angle circumferential with tire can be 0~10 degree.
Additionally, the operation such as tyre inflating of the present invention, rolling and heat cure is technology hand well known to those skilled in the art
Section, the present invention is not particularly limited.
In embodiments of the present invention, the steel belt radially outer of the semi-steel radial pneumatic tire is along tire circumference
Direction is provided with steel wire reinforcement layer, and the steel wire reinforcement layer is wound by all-steel cord.In tire building process of the present invention,
During winding steel wire enhancement layer, the depression at specific assembly drum, i.e. tire shoulder with predetermined shape, its shape and steel wire reinforcement need to be used
Position of the layer in tire is identical.The belt reinforcing layer of tire of the present invention includes steel wire, can assign tire belt beam higher
Binding force, prevents tire deformation in the process of moving, and the riding stability of tire is strengthened.Simultaneously as steel wire is relatively low
Deformation under can have binding force higher, tire can be made just to have under lower-speed state high handling.In addition, of the invention
The features such as tire also has preferable durability, beneficial to application.
For a further understanding of the application, the semi-steel radial pneumatic tire provided the application with reference to embodiment and
Its shaped device is specifically described.
Embodiment 1
The present embodiment uses convenient source first, prepares the semi-products at each position of tire；Then, in first assembly drum volume
Bent inner liner, resin fibre layer, sidewall rubber, second assembly drum curled wire belt, belt reinforcing layer and crown.Most
Afterwards, by folding, inflation, rolling step is bonded together, and obtains tire semi-products for above-mentioned two parts and tire lip steel wire.It is unvulcanized
Tire is the heat cure in a mold of tire semi-products, obtains semi-steel radial tire.
Wherein, second assembly drum winding of strips layer marginal position has arc-shaped recess, as shown in figure 12.Gained half steel
Radial tire structure is as shown in figure 4, tire specification is：215/45ZR17MAZ4S91W.Gained semi-steel radial tire structure is joined
Referring to table 1, table 1 is semi-steel radial tire structural parameters in embodiment 1~3 and comparative example to number.
Embodiment 2~3
According to the method for embodiment 1, embodiment 2, the semi-steel radial tire of embodiment 3 are respectively obtained.Wherein, second
Assembly drum winding of strips layer marginal position has arc-shaped recess, as shown in figure 12.Gained semi-steel radial tire structure is respectively such as
Shown in Fig. 5, Fig. 4, tire specification is：215/45ZR17MAZ4S91W.Gained semi-steel radial tire structural parameters are referring to table 1.
Comparative example
Using the device shown in Fig. 1, according to the method for embodiment 1, the semi-steel radial tire of comparative example is obtained.Gained half
Steel radial structure uses nylon fiber enhancement layer, and tire specification is：215/45 ZR17 MAZ4S 91W, structural parameters
Referring to table 1.
Semi-steel radial tire structural parameters in the embodiment 1~3 of table 1 and comparative example
Note：In above material, the specification of nylon66 fiber (polyamide) is 860D/2/25.5, limited purchased from refreshing horse industry share
Company；The specification of ST all-steel cords be 5*0.225mm, purchased from Chinese NV Bekaert SA's steel cord Co., Ltd；Polyester (PET)
Specification for 1500D/2/25.5, purchased from Performance Fibers (Kaiping) Co., Ltd.；The specification of artificial silk is 1650D/2/
25.5th, purchased from N.I TEIJIN SHOJI CO., LTD.
Performance test is carried out to embodiment 1~3 and comparative example gained semi-steel radial tire, wherein, subjective assessment test
Vehicle is：VW OCTOVIA 2.0；Subjective assessment uses ten point system, and fraction is higher, and performance is better.Tyres durable tests regulation
For：FMVSS 109；Tire high speed test regulation is：ECER 30.
Referring to table 2, table 2 is the performance test knot of embodiment 1~3 and comparative example gained semi-steel radial tire to test result
Really.From table 2 it can be seen that the semi-steel radial pneumatic tire that the present invention is provided have preferably handling and riding stability and
Durability etc., can preferably meet the use requirement by bus with high-performance (HP or UHP) semi-steel radial tire.
The performance test results of the embodiment 1~3 of table 2 and comparative example gained semi-steel radial tire
Note：Above objective examination result is 100 with comparative example, and the data of each embodiment are percents.For the above
Subjective test results, numerical value is bigger, represents its performance better.
The above is only the preferred embodiment of the present invention, it is noted that for the ordinary skill people of the art
For member, under the premise without departing from the principles of the invention, some improvements and modifications can also be made, these improvements and modifications also should
It is considered as protection scope of the present invention.
Claims (10)
1. a kind of semi-steel radial pneumatic tire, is provided with steel belt, its feature in resin fibre layer tire radial outside
Be that tire circumferential direction is provided with steel wire reinforcement layer in the steel belt radially outer, steel wire reinforcement layer by
All-steel cord is wound.
2. semi-steel radial pneumatic tire according to claim 1, it is characterised in that the steel belt is two-layer band
Beam layer；The angle of the two-layer belt is 18 °~45 °.
3. semi-steel radial pneumatic tire according to claim 1, it is characterised in that the steel wire reinforcement layer is by a diameter of
The all-steel cord of 0.2mm~2.0mm is wound.
4. semi-steel radial pneumatic tire according to claim 1, it is characterised in that the all-steel cord is in after glue is covered
Regular curve form, the regular curve meets the condition of formula 1：
1.01 ＜ L1/L0The formulas 1 of ＜ 1.10；
In formula 1, L0Between two end points intersected with its bearing of trend central line for a regular curve conversion circulation all-steel cord
Air line distance；
L1Steel wire between two end points intersected with its bearing of trend central line for a regular curve conversion circulation all-steel cord
Cord length.
5. semi-steel radial pneumatic tire according to claim 4, it is characterised in that the regular curve meets formula 2
Part：
0.01 ＜ L1/L0-R1/R2The formulas 2 of ＜ 0.05；
In formula 2, R1It is the radius of a circle of ring-type steel wire reinforcement layer in finished tire；
R2The radius of a circle of annular steel wire enhancement layer during for tire building.
6. semi-steel radial pneumatic tire according to claim 1, it is characterised in that the steel wire reinforcement layer is along tire axle
It is the 10%~130% of steel belt width to the width on direction；The steel wire reinforcement layer and the circumferential angle of tire are 0
~10 degree.
7. semi-steel radial pneumatic tire according to claim 1, it is characterised in that outside in the steel belt footpath
Portion is wound with steel wire reinforcement layer, the steel wire reinforcement layer whole tyre surface steel belt of covering, the steel along tire circumferential direction
Silk enhancement layer tire radially outer is crown；
Or, it is wound with steel wire along the shoulder zone or tyre surface center of tire circumferential direction in the steel belt radially outer
Enhancement layer, remaining position is wound with resin fibre enhancement layer；
Or, it is wound with resin fibre enhancement layer, the resin along tire circumferential direction in the steel belt radially outer
Fiber-reinforced layer covers whole tyre surface steel belt, in the resin fibre enhancement layer radially outer along tire circumferential direction
Shoulder zone or tyre surface center additional windings have steel wire reinforcement layer.
8. a kind of shaped device of semi-steel radial pneumatic tire, for winding semi-steel radial pneumatic tire semi-products material,
Driving equipment including assembly drum and for driving assembly drum, it is characterised in that there is arc at the tire shoulder of the assembly drum surface
Depression.
9. shaped device according to claim 8, it is characterised in that the arc diameter of the arc-shaped recess be 15mm~
100mm, the height of the arc-shaped recess bottom distance winding semi-products material surface is 5mm~25mm.
10. shaped device according to claim 8, it is characterised in that the assembly drum winds the cylinder of semi-products material
Body face width is 205mm~300mm.
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110785291A (en) * | 2017-06-20 | 2020-02-11 | 株式会社普利司通 | Pneumatic tire |
| CN112313085A (en) * | 2018-06-19 | 2021-02-02 | 株式会社普利司通 | Pneumatic tire and method for manufacturing resin-coated belt |
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| CN112313085A (en) * | 2018-06-19 | 2021-02-02 | 株式会社普利司通 | Pneumatic tire and method for manufacturing resin-coated belt |
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| Publication number | Publication date |
|---|---|
| CN106739831B (en) | 2018-08-14 |
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