CN214984632U - Novel radial tire with belted layer structure - Google Patents
Novel radial tire with belted layer structure Download PDFInfo
- Publication number
- CN214984632U CN214984632U CN202023068246.2U CN202023068246U CN214984632U CN 214984632 U CN214984632 U CN 214984632U CN 202023068246 U CN202023068246 U CN 202023068246U CN 214984632 U CN214984632 U CN 214984632U
- Authority
- CN
- China
- Prior art keywords
- cord fabric
- layer
- spirally wound
- belt
- tire
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Images
Landscapes
- Tires In General (AREA)
Abstract
The utility model discloses a novel radial tire of layer structure is restrainted in area includes by matrix to the tire crown area of a tyre layer structure: the steel cord fabric comprises a 1# steel cord fabric belt ply, a 2# steel cord fabric belt ply, a transition layer, a spirally wound cord fabric strip and a 3# steel cord fabric belt ply; the cord fabric strips spirally wound are positioned on two sides of the transition layer on the cord fabric strip layer of the No. 2 steel wire cord fabric, the cord fabric strips are continuously spirally wound for an upper layer and a lower layer, and the width of the cord fabric strips spirally wound on the lower layer is larger than that of the cord fabric strips spirally wound on the upper layer. The rigidity of the tire crown is ensured and the wear resistance is improved through the selection of a rubber sheet or a steel wire cord fabric of the transition layer and the width design and width ratio selection of the cord fabric belt spirally wound on the upper layer and the lower layer; the cord fabric strips which are spirally wound are continuously wound, and the head and the tail of the cord fabric strips are not overlapped, so that the performances of the tightening force, the rigidity, the abrasion and the like of the edge part of the belt ply are improved, the shearing strain between layers is reduced, and the delaminating and the blasting of the belt ply are reduced.
Description
Technical Field
The utility model belongs to the technical field of tire structure technique and specifically relates to a novel radial tire of belted layer structure.
Background
The belt structure is used as a main functional component of the radial truck tire, the types of the belt structure mainly comprise two types, one type is a multi-layer cord fabric structure, and the belt structure is mainly four layers of steel wire cord fabrics which are arranged at different angles in a mutually crossed mode, and the structure is favorable for improving the performances of abrasion, control, retreading and the like of the tire; however, the durability of the structure for bearing high air pressure and high load is low, and the failure mode is usually tire burst of a tire crown, so that the structure has great potential safety hazards in driving; its two belt structure of 0 degree, mainly be by the steel cord fabric layer that three-layer different angles and layer intercrossed arranged adds the steel cord fabric layer that the ply both ends were 0 winding along tire circumference, this structure is favorable to improving the withstand voltage load-resisting property of tire, is favorable to load endurance quality, and the failure mode is mostly shoulder empty, and relative driving potential safety hazard is less, but the wear-resisting and the retreading performance of tire are lower.
Recently, in order to meet the increasingly refined demands of the market and vehicle functions, it is necessary to provide a tire with a novel belt structure which can ensure the durability of the tire under high pressure and high load and can improve the wear resistance and the retreading performance of the tire.
SUMMERY OF THE UTILITY MODEL
In view of this, the utility model provides a radial tire of novel belted layer structure improves tire wearing and tearing and retreading ability on the basis of durability under guaranteeing tire high pressure high load, improves tire driving safety nature.
The utility model adopts the technical proposal that:
a radial tire with a novel belt structure comprises from a tire body to a crown belt structure: 1# wirecord fabric belted layer, 2# wirecord fabric belted layer, transition layer, spirally wound cord fabric belt and 3# wirecord fabric belted layer.
Preferably, the spirally wound cord fabric is positioned on two sides of the transition layer on the 2# steel cord fabric belt layer, the upper layer and the lower layer are continuously spirally wound, and the width of the spirally wound cord fabric belt on the lower layer is greater than that of the spirally wound cord fabric belt on the upper layer.
Preferably, the spirally wound cord fabric strip is formed by tightly spirally winding a steel cord fabric strip which has the width of 1-10mm and contains 1-5 steel cords along the circumferential direction of the tire, and the cords in the steel cord fabric strip are at an angle of 0.1-0.5 degrees with the circumferential equator line of the tire crown. Namely, one steel cord fabric belt is continuously and tightly spirally wound on the 2# steel cord fabric belt layer from two sides of the transition layer to the tire shoulder for a plurality of circles until the required width of the cord fabric belt spirally wound on the lower layer is reached, and then the cord fabric belt spirally wound on the lower layer is wound from the tire shoulder to the middle part of the tire crown for a plurality of circles until the required width of the cord fabric belt spirally wound on the lower layer is reached, so that the cord fabric belt spirally wound on the upper layer and the lower layer is formed; the width of the cord fabric belt spirally wound on the upper layer and the lower layer is larger than that of the steel wire cord fabric belt used for winding. The design of the cord fabric strip spirally wound improves the hooping force and the effective width of the edges of the 1# steel cord belt ply and the 2# steel cord belt ply, reduces the interlaminar shear strain in the deformation process of the tire, and reduces the delaminating and blasting of the crown belt ply of the tire; the spirally wound cord fabric strips are not overlapped end to end, the material distribution is uniform, the performances of dynamic balance, uniformity and the like of the tire are improved, the grounding shape of the tire surface is improved, the rigidity of the tire is increased, the abrasion performance and the durability are improved, the rolling resistance of the tire is reduced, and the problem that the steel wires are broken and scrapped in the tire retreading and polishing process is solved.
Preferably, the width difference of the upper layer and the lower layer of the spirally wound cord fabric strip at one end close to the tire shoulder is 0-20mm, and the width ratio of the spirally wound cord fabric strip of the lower layer to the spirally wound cord fabric strip of the upper layer is 5: (1-4). The width of the cord fabric layer of the wide and narrow spiral winding can be set as required, so that the reasonable gradient of the tightening force at the tire shoulder part is favorably formed, the reasonable distribution of the grounding of the tire is ensured on the basis of improving the durability of the tire under high pressure and high load, and the wear resistance and the durability of the tire are improved.
Preferably, the transition layer is a rubber layer or a steel cord ply, and the width of the transition layer is smaller than the width between the cord strips spirally wound on the lower layers at the two sides of the transition layer; the angle between the cords in the steel cord layer of the transition layer and the circumferential equator of the tire crown is 10-80 degrees. The transition layer is beneficial to protecting the 1# wirecord fabric belted layer and the 2# wirecord fabric belted layer after the tire is punctured, and delamination and blasting caused by rusting of belted layer steel wires due to puncturing, water vapor and the like are reduced.
Preferably, the cords in the No. 1 steel cord belt layer, the No. 2 steel cord belt layer, the No. 3 steel cord belt layer and the transition layer have an angle of 10-80 degrees with the circumferential equator of the tire crown, and the cords among the layers are arranged in a crossed mode.
Preferably, the width difference level between the two ends of the No. 1 steel cord belt layer and the No. 2 steel cord belt layer is 5-25 mm.
Preferably, the width difference between the No. 2 steel cord belt layer and the lower spirally wound cord fabric belt layer at one end close to the tire shoulder is 5-25 mm.
Preferably, two ends of the No. 3 steel cord belt layer are respectively and partially covered on the upper surface of the cord fabric belt spirally wound at the lower layer, and the cord fabric belt spirally wound at the upper layer is positioned at two sides of the No. 3 steel cord belt layer; the radial height of the cord fabric belt spirally wound on the upper layer is close to that of the 3# steel wire cord fabric belt, so that the damage of the tire in the retreading and polishing process is effectively avoided, and the retreading performance of the tire is improved.
Preferably, the width of the No. 3 steel cord belt layer is less than or equal to the distance between the cord belts spirally wound on the upper layers at two sides of the No. 3 steel cord belt layer.
Compared with the prior art, the utility model provides a radial ply tire with a novel belted layer structure,
1. according to the specification and performance requirements of the tire, the integral rigidity of the tire crown part is effectively ensured and the wear resistance of the tire is improved by selecting a rubber sheet or a steel wire cord fabric of a transition layer and designing the width and the width ratio of the cord fabric tapes spirally wound on an upper layer and a lower layer;
2. the design of the cord fabric strip spirally wound improves the hooping force and the effective width of the edges of the 1# steel cord belt ply and the 2# steel cord belt ply, reduces the interlaminar shear strain in the deformation process of the tire, and reduces the delaminating and blasting of the crown belt ply of the tire;
3. no overlap joint is all not had with 2# small-angle cord fabric layer end to end in 1# small-angle cord fabric layer, and the material distributes evenly, has improved performances such as dynamic uniformity, rigidity, wearing and tearing of tire, and stops that the tire retreads the process of polishing and appears wearing off the steel wire and scrap the problem.
Drawings
FIG. 1 is a schematic view of the structure of the belt of the tire of the present invention;
FIG. 2 is a schematic view of the auxiliary drum laminating and forming process of the novel belt structure forming machine of the present invention;
FIG. 3 is a cloud of shear strain between shoulder layers of radial tire with belt structure according to the present invention;
FIG. 4 is a prior art cloud diagram of shear strain between shoulder layers of a radial tire with a four-ply belt structure.
Reference numerals: 1. 1# wirecord fabric belted layer; 2. 2# wirecord fabric belted layer; 3. a transition layer; 4. 3# wirecord fabric belted layer; 5. a helically wound cord fabric tape; 5-1, lower layer of spirally wound cord fabric tape; 5-2, an upper layer of spirally wound cord fabric belt; 6. tire shoulders; 7. a forming machine auxiliary drum; 8. and (3) a tread.
Detailed Description
The present invention will be described in further detail with reference to specific embodiments thereof for the purpose of enabling those skilled in the art to better understand the present invention.
A radial tire with a novel belt structure is characterized by comprising from a tire body to a tire crown belt structure: 1# wirecord fabric belt ply 1, 2# wirecord fabric belt ply 2, transition layer 3, spirally wound cord fabric strip 5 and 3# wirecord fabric belt ply 4; the spirally wound cord fabric strips 5 are positioned on two sides of the transition layer 3 on the No. 2 steel cord fabric belt layer 2 and continuously spirally wound for an upper layer and a lower layer, and the width of the spirally wound cord fabric strip 5-1 on the lower layer is larger than that of the spirally wound cord fabric strip 5-2 on the upper layer.
The spirally wound cord fabric strip 5 is formed by tightly spirally winding a steel cord fabric strip with the width of 1-10mm and containing 1-5 steel cord curtains along the circumferential direction of the tire, and the cord in the steel cord fabric strip and the circumferential equator line of the tire crown form an angle of 0.1-0.5 degrees. In some specific embodiments, the spirally wound strip 5 is formed by closely spirally winding a steel cord strip having a width of 7mm and comprising 3 steel cords in a tire circumferential direction, and the cords in the steel cord strip are at an angle of 0.1 ° to the tire crown circumferential equator. The width of the cord fabric belt 5-1 spirally wound on the lower layer is 105mm and contains 45 steel wire cords, and the width of the cord fabric belt 5-2 spirally wound on the upper layer is 70mm and contains 30 steel wire cords; namely, a steel cord fabric strip with the width of 1-10mm and containing 1-5 steel cord threads is continuously, closely and spirally wound for a plurality of circles from two sides of a No. 2 steel cord fabric belt layer 2 to a tire shoulder 6 until the required width of the lower spirally wound cord fabric strip 5-1 is reached, then spirally wound for a plurality of circles from the tire shoulder 6 to the middle part of a tire crown is returned on the lower spirally wound cord fabric strip 5-1 until the required width of the upper spirally wound cord fabric strip 5-2 is reached, and thus the lower spirally wound cord fabric strip 5-1 and the upper spirally wound cord fabric strip 5-2 are formed.
The width difference between the lower layer of spirally wound cord fabric strip 5-1 and the upper layer of spirally wound cord fabric strip 5-2 at one end close to the tire shoulder is L1，L1The value is 0-20mm, the width ratio of the cord fabric belt 5-1 spirally wound on the lower layer to the cord fabric belt 5-2 spirally wound on the upper layer is 5: (1-4).
The transition layer 3 is a rubber layer or a steel wire cord fabric layer, and the width of the transition layer 3 is smaller than the width between the lower spirally wound cord fabric belts 5-1 at the two sides of the transition layer 3; the angle between the cords in the steel cord layer of the transition layer 3 and the circumferential equator of the tire crown is 10-80 degrees.
The angle between the cords in the No. 1 steel cord belt layer 1, the No. 2 steel cord belt layer 2, the No. 3 steel cord belt layer 4 and the transition layer 3 and the circumferential equator of the tire crown is 10-80 degrees, and the cords among the layers are arranged in a crossed mode.
The width difference level of the two ends of the No. 1 steel cord belt ply layer 1 and the No. 2 steel cord belt ply layer 2 is L2，L2The value is 5-25 mm.
The width difference between the No. 2 steel cord fabric belt layer 2 and the spirally wound cord fabric belt 5-1 at the end close to the tire shoulder 6 is L3，L3The value is 5-25 mm.
Two ends of the 3# steel cord belt ply 4 are respectively and partially covered on the lower spirally wound cord fabric strip 5-1, and the cord fabric strips 5-2 spirally wound on the upper layer are positioned on two sides of the 3# steel cord fabric belt ply 4; the radial height of the cord fabric belt 5-2 spirally wound on the upper layer is similar to that of the 3# steel wire cord fabric belt 4.
The width of the 3# steel cord belt layer 4 is less than or equal to the distance between the cord fabric strips 5-2 spirally wound on the upper layers at the two sides of the 3# steel cord belt layer 4.
The utility model provides a forming process of a radial ply tire with a novel belted layer structure, which comprises the following steps,
as shown in fig. 1-2, the 1# wirecord fabric belt layer 1, the 2# wirecord fabric belt layer 2, the 3# wirecord fabric belt layer 4 and the transition layer 3 are cut and coiled on the wirecord fabric oblique cutting machine according to the parameters of the specifically designed wirecord fabric specification, width, angle, whether to cover edges and the like of each tire product;
the lower layer of spirally wound cord fabric strip 5-1 and the upper layer of spirally wound cord fabric strip 5-2 are arranged by 1-5 pieces and are produced and coiled by an extrusion linkage line;
the semi-finished product of the tire tread is extruded and cut by a tread compound extrusion production line according to normal production and then is stored;
as shown in fig. 2, a 1# steel cord belt ply 1, a 2# steel cord belt ply 2, a transition layer 3 and a 3# steel cord belt ply 4 are sequentially laminated and formed on a forming machine auxiliary drum 7 according to the steel cord trend between layers of product design;
the spirally wound cord fabric strip 5 is positioned by a winding machine according to the design size, and continuous spiral winding of a lower layer spirally wound cord fabric strip 5-1 with a wide lower layer and a narrow upper layer and an upper layer spirally wound cord fabric strip 5-2 is completed according to the spiral winding direction (the direction indicated by an arrow in fig. 2) shown in fig. 2;
finishing the fitting and the joint of the tire surface 8;
and compounding the composite part of the tire crown part and the composite part of the tire body part on the main machine of the molding machine on a composite drum of the molding machine to complete molding of the tire blank, and vulcanizing to obtain a final product.
To the four layers among the prior art belted layer structure radial tire and the utility model discloses a belted layer structure radial tire carries out shear strain test between layer, as shown in figure 4 and figure 3 respectively, can know by the figure, shear strain maximum assignment between the four layers among the prior art belted layer structure radial tire layer is 0.786, the utility model discloses a belted layer structure radial tire layer shear strain maximum assignment is 0.599, and the less level shear strain of this numerical value is less, is favorable to improving tire load endurance more, reduces tire blasting and delaminating.
The radial tire with the novel belted layer structure provided by the utility model is described in detail. The principles and embodiments of the present invention have been explained herein using specific examples, and the above descriptions of the embodiments are only used to help understand the methods and the central idea of the present invention, and the mentioned directional terms are, for example: upper, lower, left, right, front, rear, etc. are directions with reference to the drawings, and directional terms are used for illustration and are not intended to limit the present invention. It should be noted that, for those skilled in the art, without departing from the principle of the present invention, the present invention can be subject to several improvements and modifications, which also fall within the scope of the claims of the present invention.
Claims (9)
1. A radial tire with a novel belt structure is characterized by comprising from a tire body to a tire crown belt structure: the steel cord fabric comprises a 1# steel cord fabric belt ply, a 2# steel cord fabric belt ply, a transition layer, a spirally wound cord fabric strip and a 3# steel cord fabric belt ply; the cord fabric strips spirally wound are positioned on two sides of the transition layer on the cord fabric strip layer of the No. 2 steel wire cord fabric, the cord fabric strips are continuously spirally wound for an upper layer and a lower layer, and the width of the cord fabric strips spirally wound on the lower layer is larger than that of the cord fabric strips spirally wound on the upper layer.
2. A radial tire with a novel belt structure as claimed in claim 1, wherein said spirally wound cord fabric is formed by tightly spirally winding a steel cord fabric having a width of 1-10mm and containing 1-5 steel cords in the circumferential direction of the tire, and the cords in said steel cord fabric are at an angle of 0.1-0.5 ° to the circumferential equator of the tire crown.
3. A radial ply tire as claimed in claim 2, wherein the difference in width between the upper and lower plies of the spirally wound cord fabric strip near the shoulder end is 0-20mm, and the ratio of the width of the spirally wound cord fabric strip on the lower ply to the width of the spirally wound cord fabric strip on the upper ply is 5: (1-4).
4. A radial ply tire with novel belt structure as claimed in claim 1, wherein said transition layer is a rubber layer or a steel cord ply, and the width of the transition layer is smaller than the width between the cord plies spirally wound under the two sides of the transition layer; the angle between the cords in the steel cord layer of the transition layer and the circumferential equator of the tire crown is 10-80 degrees.
5. A radial ply tire with a novel belt structure as claimed in claim 1, wherein the cords in the No. 1 steel cord belt layer, the No. 2 steel cord belt layer, the No. 3 steel cord belt layer and the transition layer have an angle of 10-80 ° with the circumferential equator of the tire crown, and the cords are arranged in a crossed manner between layers.
6. A radial ply tire with novel belt structure as claimed in claim 1, wherein the width difference of the two ends of the No. 1 steel cord belt and the No. 2 steel cord belt is 5-25 mm.
7. A radial ply tire as claimed in claim 1, wherein the width difference between the No. 2 steel cord belt and the lower spirally wound cord fabric near the shoulder is 5-25 mm.
8. The radial tire with a novel belt structure as claimed in claim 1, wherein both ends of the No. 3 steel cord belt are respectively and partially covered on the upper surface of the cord fabric spirally wound on the lower layer, and the cord fabric spirally wound on the upper layer is positioned on both sides of the No. 3 steel cord belt; the radial height of the cord fabric belt spirally wound on the upper layer is similar to that of the 3# steel cord fabric belt.
9. A radial ply tire with novel belt structure as claimed in claim 1, wherein the width of said 3# steel cord belt is less than or equal to the distance between the spirally wound cord tapes on the upper layer of both sides of the 3# steel cord belt.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202023068246.2U CN214984632U (en) | 2020-12-18 | 2020-12-18 | Novel radial tire with belted layer structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202023068246.2U CN214984632U (en) | 2020-12-18 | 2020-12-18 | Novel radial tire with belted layer structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN214984632U true CN214984632U (en) | 2021-12-03 |
Family
ID=79084144
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202023068246.2U Active CN214984632U (en) | 2020-12-18 | 2020-12-18 | Novel radial tire with belted layer structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN214984632U (en) |
-
2020
- 2020-12-18 CN CN202023068246.2U patent/CN214984632U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US20210008927A1 (en) | Pneumatic Tire | |
| CN103813911B (en) | Pneumatic tire | |
| US20220266631A1 (en) | Pneumatic Tire | |
| EP3459763B1 (en) | Tire | |
| US20150273943A1 (en) | Pneumatic Tire | |
| CN103153650A (en) | Tire having a radial carcass reinforcement | |
| US10369845B2 (en) | Pneumatic tire | |
| CN106994865B (en) | Pneumatic tire | |
| EP2620300B1 (en) | Pneumatic tire and method of manufacturing the same | |
| CN101596841A (en) | Air-inflation tyre | |
| US20110232818A1 (en) | Tire for Heavy Vehicles Comprising at Least in Each Shoulder, at Least Two Additional Layers in the Crown Reinforcement | |
| CN214984632U (en) | Novel radial tire with belted layer structure | |
| JPH11222010A (en) | Pneumatic radial tire | |
| CN102501729A (en) | Radial tire with fiber layer enhanced tread | |
| JP4971540B2 (en) | Pneumatic radial tire for passenger cars | |
| JP3683065B2 (en) | Pneumatic radial tire | |
| JP4383661B2 (en) | Tire with two rigid carcass reinforcements | |
| EP3546246B1 (en) | Tire | |
| JP2013071368A (en) | Method for manufacturing pneumatic tire and pneumatic tire | |
| US8720515B2 (en) | Tire for heavy vehicles comprising at least two additional layers in the beads | |
| JP5126952B2 (en) | Tire and manufacturing method thereof | |
| EP3081395A1 (en) | A continuous crown reinforcement for a pneumatic tire | |
| JPH0514641B2 (en) | ||
| CN202319751U (en) | Radial ply tire with fiber layer reinforced tread | |
| CN109195814B (en) | Tyre for vehicle wheels |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |