CN2544979Y - Improved radial tyre of sedan - Google Patents
Improved radial tyre of sedan Download PDFInfo
- Publication number
- CN2544979Y CN2544979Y CN 02240228 CN02240228U CN2544979Y CN 2544979 Y CN2544979 Y CN 2544979Y CN 02240228 CN02240228 CN 02240228 CN 02240228 U CN02240228 U CN 02240228U CN 2544979 Y CN2544979 Y CN 2544979Y
- Authority
- CN
- China
- Prior art keywords
- tire
- bracing ply
- nylon
- steel wire
- model
- 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.)
- Expired - Lifetime
Links
Images
Landscapes
- Tires In General (AREA)
Abstract
The utility model relates to an improved automobile radial ply tire, which is an improved structure presented for the tread bracing layers of current automobile radial ply tires. The nylon tread bracing layer of the tire of the utility model is one layer consisting of one or two nylon tread bracing layers which are symmetrically distributed at tire shoulder parts on both sides of the central line of a tire tread. With the small stress of the tire shoulders, the tire of the utility model can reduce the damage to the tire shoulders, effectively extend the service life of the tire and improve the high-speed performance; simplify the tread bracing layer structure, reduce consumption of the tread bracing layer material, simplify the processing and shaping process, save cost and increase benefit.
Description
Technical field
The utility model relates to a kind of radial tyre of passenger car, particularly the improvement structure that proposes at the bracing ply that has radial tyre of passenger car now.
Technical background
Radial-ply tyre has at a high speed, comfortable, durable, safety, energy-saving advantages, and development is very fast since nearly half a century.The angle of the body cord of radial-ply tyre with radially become zero angle, the cord of adjacent layer is parallel to each other, bracing ply plays the banding effect, is important stressed member, its structure and material has very big influence to the performance of tire.Usually, radial-ply tyre mainly is made of each parts rubber of tire, bead coil, carcass cord, steel wire bracing ply and nylon bracing ply, the steel wire bracing ply is two-layer, and the nylon bracing ply is at steel wire bracing ply skin, and the outer end of nylon bracing ply is outside the end of steel wire bracing ply.The effect of nylon bracing ply mainly is to improve the tire shoulder structure, reduces stress concentration, and the banding carcass is avoided wire tape bundle delamination layer.The most common damaged location of radial tyre of passenger car is the tire shoulder position, and the damage at this position is mainly caused by stress concentration, and the major cause that causes stress concentration is exactly that belt structure is unreasonable.At present, development along with the tire Computational Mechanics, stress calculation result according to each parts of tire can realize tire integral body is optimized, the tire Finite Element Method provides theoretical foundation for the tire construction optimal design, plays an important role aspect performance, cost-cuttings such as raising tire high speed durability, travelling comfort at the research belt structure.At present, radial tyre of passenger car generally all adopts the ordinary construction bracing ply, and promptly two outside layers is to wait the nylon bracing ply of width, and the inside is two-layer to be the steel wire bracing ply that does not wait width.For example: 205/60R15 type radial tyre of passenger car, the two-layer nylon bracing ply width of this tire equates for about 180mm, second layer steel wire bracing ply than the ground floor steel wire bracing ply narrow 5mm in both sides about, the nylon bracing ply than the 1st layer of wide 5mm in steel wire bracing ply both sides about.
Summary of the invention
The purpose of a kind of improved type radial tyre of passenger car of the utility model is to propose a kind of radial tyre of passenger car that can reduce the new construction bracing ply of tire tire shoulder stress.
The technical solution of the utility model is: the nylon bracing ply is one deck, is made of one or two nylon bracing ply that is symmetrically distributed in crown line of centers both sides tire shoulder portion.The utility model is at the improvement of 205/60R15 type radial tyre of passenger car, and tire is by two nylon bracing plys that constitute, and every width is 20～90mm, and every outer end is than the wide 5mm in end of ground floor steel wire bracing ply; Tire is 180mm by a nylon bracing ply width that constitutes, and the outer end of nylon bracing ply is than the wide 5mm in end of ground floor steel wire bracing ply.
The beneficial effects of the utility model are that the tire shoulder stress of this structure tire is little, can reduce the damage of tire shoulder, effectively prolong tire service life, improve high speed performance; Simplify belt structure, can reduce the belt material consumption, simplified processing and forming technology, saved cost, increased benefit.
Description of drawings
Fig. 1 is the constructional drawing of general car radial-ply tyre.
Fig. 2 is general car radial-ply tyre tire shoulder bilge construction figure.
Fig. 3 is that the nylon bracing ply of a kind of improved type radial tyre of passenger car of the utility model is one tire construction figure.
Fig. 4 is that the nylon bracing ply of a kind of improved type radial tyre of passenger car of the utility model is two tire construction figure.
Fig. 5 is that the tire nylon bracing ply of a kind of improved type sedan car radial ply wheel of the utility model is two tire shoulder bilge construction figure.
The specific embodiment
The general car radial-ply tyre as shown in Figure 1 and Figure 2, mainly is made of each parts rubber of tire, bead coil 1, carcass cord 2, steel wire bracing ply 3, nylon bracing ply 4.Steel wire bracing ply 3 is two-layer, and ground floor steel wire bracing ply 3-1 is wideer than second layer steel wire bracing ply 3-2.Nylon bracing ply 4 is two-layer, and ground floor nylon bracing ply 4-1 equates that with the width of the second layer nylon bracing ply 4-2 outer end 4A of nylon bracing ply 4 is longer than the outer end 3A of steel wire bracing ply 3.The utility model only improves the nylon belt structure of general car radial-ply tyre, and other structures are identical with the general car radial-ply tyre.The utility model as shown in Figure 3, Figure 4, steel wire bracing ply 3 is the same with the structure of general car radial-ply tyre, only keeps ground floor nylon bracing ply at steel wire bracing ply 3 skins, removes second layer nylon bracing ply.The utility model nylon bracing ply 5 constitutes as shown in Figure 3 by one, and nylon bracing ply 5 constitutes as Fig. 4, shown in Figure 5 by two, and two nylon bracing plys 5 are symmetrically distributed in the tire shoulder portion of crown line of centers both sides.The outer end 5A of nylon bracing ply 5 is longer than the outer end 3A of steel wire bracing ply 3.The large-scale general finite element software (ANSYS 5.6.1 version) that using tyre is analyzed calculates, and result of calculation shows that employing tire of the present utility model is littler than the tire shoulder stress of conventional tyre.
Embodiment
With the example that transform as to common 205/60R15 type radial tyre of passenger car.Common 205/60R15 type radial tyre of passenger car as shown in Figure 1 and Figure 2, steel wire bracing ply 3 thickness 1.30mm, the end of second layer steel wire bracing ply 3-2 is than the narrow 5mm in end of ground floor steel wire bracing ply 3-1, and nylon bracing ply 4 is that 0.88mm, width are that the two-layer of 180mm constitutes by thickness.The structure of the utility model tire nylon bracing ply 5, as Fig. 3, Fig. 4, shown in Figure 5, nylon bracing ply 5 is one deck, constitute by one shown in Figure 3, also can be as Fig. 4, shown in Figure 5ly form by two, the width of every nylon bracing ply is L, and the outer end 5A of every nylon bracing ply is than the wide 5mm of end 3A of ground floor steel wire bracing ply.Used material, thickness and the processing mode of the bracing ply of the utility model tire is all identical with the general car radial tire undertread.The nylon bracing ply of radial tyre of passenger car also can replace with polyester cord bracing ply or aromatic polyamide cord bracing ply.
Adopt finite element method ANSYS software, the tire radial section 1/4 on defined 176 nodes, is that initial point rotates to an angle with node with the centre of gration of tire, generate the second series node, the unit of being made up of 2 cribbing points can constitute the tire finite element model of a sector-shaped slices, and this model has 111 unit.This section according to the position difference at selective analysis position, is rotated 15 °, 10 ° and 7 ° respectively, and rotating a circle generates half tire, and node is several 7407, unit number 3946.
The pacing factor of the simulated condition of tire: inflation pressure P 0.22MPa, rim of the mouth displacement U 22mm behind the mounting of tyre, 21 ° at belt cord angle, cord pre-stretching rate 3%.
Respectively as Fig. 2 and shown in Figure 5, the stress value of getting node number 62～68 7 node that can represent tire shoulder position hoop-stress represents that the hoop-stress at tire shoulder position concentrates situation to common 205/60R15 type radial tyre of passenger car and the improved tire of the utility model.Calculated the hoop-stress of tire tire shoulder portion under unearthed operating mode.To the width L of conventional tyre and tire nylon bracing ply of the present utility model is that the two-strip structure of 20mm, 27mm, 37mm, 53mm, 72mm, 90mm contrasts.
(1) under unearthed operating mode, (unit: Pa) as shown in table 1, aviation value is the aviation value of seven nodes to the tire shoulder hoop-stress behind the inflation of tire in the table.
Table 1 (unit: Pa)
| Node number | Conventional tyre | The utility model tire (L) | |||||
| 20mm | 27mm | 37mm | 53mm | 72mm | 90mm | ||
| 62 | 6.98E+05 | 6.39E+05 | 7.71E+05 | 7.28E+05 | 7.28E+05 | 7.15E+05 | 7.08E+05 |
| 63 | 7.93E+05 | 8.63E+05 | 8.78E+05 | 8.31E+05 | 8.23E+05 | 8.12E+05 | 8.09E+05 |
| 64 | 7.95E+05 | 9.44E+05 | 8.82E+05 | 8.73E+05 | 8.53E+05 | 8.41E+05 | 8.42E+05 |
| 65 | 1.83E+06 | 1.74E+06 | 1.75E+06 | 1.73E+06 | 1.72E+06 | 1.71E+06 | 1.71E+06 |
| 66 | 2.81E+06 | 2.59E+06 | 2.59E+06 | 2.58E+06 | 2.58E+06 | 2.58E+06 | 2.58E+06 |
| 67 | 2.77E+06 | 2.61E+06 | 2.61E+06 | 2.61E+06 | 2.60E+06 | 2.60E+06 | 2.60E+06 |
| 68 | 2.67E+06 | 2.52E+06 | 2.53E+06 | 2.52E+06 | 2.52E+06 | 2.52E+06 | 2.52E+06 |
| Aviation value | 1.77E+06 | 1.71E+06 | 1.72E+06 | 1.70E+06 | 1.69E+06 | 1.68E+06 | 1.68E+06 |
(2) under unearthed operating mode, inflation of tire and rotative speed are when 100Km/h, and the contrast of tire shoulder hoop-stress is as shown in table 2.
Table 2 (unit: Pa)
| Node number | Conventional tyre | The utility model tire (L) | |||||
| 20mm | 27mm | 37mm | 53mm | 72mm | 90mm | ||
| 62 | 6.96E+05 | 6.36E+05 | 7.71E+05 | 7.26E+05 | 7.26E+05 | 7.13E+05 | 7.06E+05 |
| 63 | 7.91E+05 | 8.61E+05 | 8.78E+05 | 8.28E+05 | 8.21E+05 | 8.09E+05 | 8.06E+05 |
| 64 | 7.91E+05 | 9.41E+05 | 8.82E+05 | 8.70E+05 | 8.50E+05 | 8.37E+05 | 8.38E+05 |
| 65 | 1.83E+06 | 1.74E+06 | 1.75E+06 | 1.73E+06 | 1.72E+06 | 1.71E+06 | 1.71E+06 |
| 66 | 2.81E+06 | 2.59E+06 | 2.59E+06 | 2.58E+06 | 2.58E+06 | 2.58E+06 | 2.58E+06 |
| 67 | 2.77E+06 | 2.62E+06 | 2.61E+06 | 2.61E+06 | 2.60E+06 | 2.60E+06 | 2.60E+06 |
| 68 | 2.67E+06 | 2.53E+06 | 2.53E+06 | 2.52E+06 | 2.52E+06 | 2.52E+06 | 2.52E+06 |
| Aviation value | 1.77E+06 | 1.70E+06 | 1.72E+06 | 1.69E+06 | 1.69E+06 | 1.68E+06 | 1.68E+06 |
(3) under unearthed operating mode, inflation of tire and rotative speed are when 150Km/h, and the contrast of tire shoulder hoop-stress is as shown in table 3.
Table 3 (unit: Pa)
| Node number | Conventional tyre | The utility model tire (L) | |||||
| 20mm | 27mm | 37mm | 53mm | 72mm | 90mm | ||
| 62 | 6.94E+05 | 6.33E+05 | 7.69E+05 | 7.24E+05 | 7.24E+05 | 7.10E+05 | 7.03E+05 |
| 63 | 7.87E+05 | 8.58E+05 | 8.76E+05 | 8.25E+05 | 8.18E+05 | 8.06E+05 | 8.03E+05 |
| 64 | 7.87E+05 | 9.37E+05 | 8.78E+05 | 8.65E+05 | 8.45E+05 | 8.32E+05 | 8.34E+05 |
| 65 | 1.83E+06 | 1.74E+06 | 1.75E+06 | 1.73E+06 | 1.71E+06 | 1.71E+06 | 1.71E+06 |
| 66 | 2.82E+06 | 2.59E+06 | 2.59E+06 | 2.58E+06 | 2.58E+06 | 2.58E+06 | 2.58E+06 |
| 67 | 2.78E+06 | 2.62E+06 | 2.62E+06 | 2.61E+06 | 2.61E+06 | 2.60E+06 | 2.61E+06 |
| 68 | 2.67E+06 | 2.53E+06 | 2.53E+06 | 2.53E+06 | 2.53E+06 | 2.53E+06 | 2.53E+06 |
| Aviation value | 1.77E+06 | 1.70E+06 | 1.71E+06 | 1.69E+06 | 1.69E+06 | 1.68E+06 | 1.68E+06 |
(4) under unearthed operating mode, inflation of tire and rotative speed are when the design limit speed 300Km/h of tire, and the tire shoulder hoop-stress is as shown in table 4.
Table 4 (unit: Pa)
| Node number | Conventional tyre | The utility model tire (L) | |||||
| 20mm | 27mm | 37mm | 53mm | 72mm | 90mm | ||
| 62 | 6.80E+05 | 6.14E+05 | 7.57E+05 | 7.09E+05 | 7.10E+05 | 6.96E+05 | 6.89E+05 |
| 63 | 7.70E+05 | 8.43E+05 | 8.61E+05 | 8.08E+05 | 8.01E+05 | 7.89E+05 | 7.85E+05 |
| 64 | 7.60E+05 | 9.17E+05 | 8.54E+05 | 8.42E+05 | 8.21E+05 | 8.08E+05 | 8.09E+05 |
| 65 | 1.82E+06 | 1.72E+06 | 1.73E+06 | 1.72E+06 | 1.70E+06 | 1.69E+06 | 1.69E+06 |
| 66 | 2.83E+06 | 2.59E+06 | 2.59E+06 | 2.59E+06 | 2.58E+06 | 2.58E+06 | 2.58E+06 |
| 67 | 2.79E+06 | 2.63E+06 | 2.62E+06 | 2.62E+06 | 2.61E+06 | 2.61E+06 | 2.61E+06 |
| 68 | 2.69E+06 | 2.54E+06 | 2.54E+06 | 2.54E+06 | 2.54E+06 | 2.54E+06 | 2.54E+06 |
| Aviation value | 1.76E+06 | 1.69E+06 | 1.71E+06 | 1.69E+06 | 1.69E+06 | 1.67E+06 | 1.67E+06 |
Under unearthed operating mode, tire static and when rotation, can calculate by the average datas of above 4 tables, the tire shoulder hoop-stress that adopts tire of the present utility model is than adopting the average little 3-5% of conventional tyre.Desirable 20～the 90mm of width L of nylon bracing ply, width L is too small not to have to the protective effect of steel wire bracing ply with to the banding effect of carcass.When width L is the equal of the nylon bracing ply of one deck 180mm during for 90mm.The gross area of the two-layer nylon bracing ply of conventional tyre is 0.682m
2, the utility model tire is with nylon bracing ply one deck, and width L is that two of 27mm are example, and the gross area of this nylon bracing ply is 0.102m
2, can save nylon belt material 0.58m
2Adopt the utility model tire littler, can fall low-heat-generation, reduce the damage of tire shoulder, effectively prolong tire service life, have good high speed performance than the tire shoulder stress of conventional tyre.Adopt the forming process of the utility model tire simpler than conventional tyre, the energy economical with materials, cost-cutting increases benefit.
Claims (3)
1, a kind of improved type radial tyre of passenger car, mainly constitute by each parts rubber, bead coil, carcass cord, steel wire bracing ply, nylon bracing ply, the steel wire bracing ply is two-layer, the nylon bracing ply is at steel wire bracing ply skin, the outer end of nylon bracing ply is outside the end of steel wire bracing ply, it is characterized in that: the nylon bracing ply is one deck, is made of one or two nylon bracing ply that is symmetrically distributed in crown line of centers both sides tire shoulder portion.
2, improved type radial tyre of passenger car according to claim 1 is characterized in that: by two nylon bracing plys that constitute, every width is 20～90mm, and the outer end of every nylon bracing ply is than the wide 5mm in end of ground floor steel wire bracing ply.
3, improved type radial tyre of passenger car according to claim 1 is characterized in that: by a nylon bracing ply width that constitutes is 180mm, and the outer end of nylon bracing ply is than the wide 5mm in end of ground floor steel wire bracing ply.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 02240228 CN2544979Y (en) | 2002-06-12 | 2002-06-12 | Improved radial tyre of sedan |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 02240228 CN2544979Y (en) | 2002-06-12 | 2002-06-12 | Improved radial tyre of sedan |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2544979Y true CN2544979Y (en) | 2003-04-16 |
Family
ID=33713407
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 02240228 Expired - Lifetime CN2544979Y (en) | 2002-06-12 | 2002-06-12 | Improved radial tyre of sedan |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2544979Y (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101213085B (en) * | 2005-06-30 | 2010-12-15 | 米其林技术公司 | Tyre for heavy vehicle |
| CN106541786A (en) * | 2016-10-18 | 2017-03-29 | 江苏大学 | A kind of tire of the wear-resisting and variable frictional force based on shape-memory polymer |
| CN106965629A (en) * | 2017-05-03 | 2017-07-21 | 山东元丰橡胶科技有限公司 | Mining area special tyre |
-
2002
- 2002-06-12 CN CN 02240228 patent/CN2544979Y/en not_active Expired - Lifetime
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101213085B (en) * | 2005-06-30 | 2010-12-15 | 米其林技术公司 | Tyre for heavy vehicle |
| CN106541786A (en) * | 2016-10-18 | 2017-03-29 | 江苏大学 | A kind of tire of the wear-resisting and variable frictional force based on shape-memory polymer |
| CN106541786B (en) * | 2016-10-18 | 2018-12-14 | 江苏大学 | A kind of tire of the wear-resisting and variable frictional force based on shape-memory polymer |
| CN106965629A (en) * | 2017-05-03 | 2017-07-21 | 山东元丰橡胶科技有限公司 | Mining area special tyre |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN1211220C (en) | Inflatable radial tyre mounted on rim with 15 deg. deep gutter | |
| JP3699523B2 (en) | Radial medium truck tire | |
| CN2544979Y (en) | Improved radial tyre of sedan | |
| CN102958710B (en) | Pneumatic radial tire for car | |
| JP4338522B2 (en) | Pneumatic tire | |
| CN1247389C (en) | Sedan car radial ply tire | |
| CN101402305B (en) | Truck tire | |
| CN103717414A (en) | Pneumatic tyre | |
| CN103338944B (en) | Pneumatic radial tire | |
| CN102652065A (en) | Tyre the crown of which has a stiffening reinforcement | |
| CN105745088A (en) | Pneumatic tire | |
| CN104334370A (en) | Pneumatic radial tire for vehicle | |
| CN1840367A (en) | Belt package for super single truck tires | |
| EP1097824A2 (en) | Radial tyre for motorcycle | |
| CN101528485A (en) | Pneumatic tire | |
| CN103608192A (en) | Motorcycle pneumatic tire | |
| JPS63166605A (en) | Radial tire for heavy vehicle | |
| EP4134247A1 (en) | Pneumatic tire | |
| CN216579989U (en) | Improved generation area of meridian aircraft tire is restrainted layer structure | |
| JP2012076678A (en) | Pneumatic tire | |
| CN102416827A (en) | Pneumatic tire | |
| CN108638756B (en) | Heavy-duty radial tire with reverse-folded multi-layer winding structure | |
| CN112744031A (en) | Novel inflation-free tire | |
| JPH09175123A (en) | Pneumatic radial tire for motorcycle provided with flipper | |
| CN102059922A (en) | All-steel light radial truck tire |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Effective date of abandoning: 20060329 |
|
| C25 | Abandonment of patent right or utility model to avoid double patenting |