CN110877504A - Aircraft tire side wall and tire bead profile structure - Google Patents
Aircraft tire side wall and tire bead profile structure Download PDFInfo
- Publication number
- CN110877504A CN110877504A CN201911392207.7A CN201911392207A CN110877504A CN 110877504 A CN110877504 A CN 110877504A CN 201911392207 A CN201911392207 A CN 201911392207A CN 110877504 A CN110877504 A CN 110877504A
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- Prior art keywords
- bead
- arc
- tire
- tangent
- heel
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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
- B60C15/00—Tyre beads, e.g. ply turn-up or overlap
- B60C15/02—Seating or securing beads on rims
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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
- B60C13/00—Tyre sidewalls; Protecting, decorating, marking, or the like, thereof
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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
- B60C15/00—Tyre beads, e.g. ply turn-up or overlap
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B64—AIRCRAFT; AVIATION; COSMONAUTICS
- B64C—AEROPLANES; HELICOPTERS
- B64C25/00—Alighting gear
- B64C25/32—Alighting gear characterised by elements which contact the ground or similar surface
- B64C25/34—Alighting gear characterised by elements which contact the ground or similar surface wheeled type, e.g. multi-wheeled bogies
- B64C25/36—Arrangements or adaptations of wheels, tyres or axles in general
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Aviation & Aerospace Engineering (AREA)
- Tires In General (AREA)
Abstract
The invention discloses an aircraft tire sidewall and a tire bead profile structure, which comprises a sidewall, a tire bead, a bead heel, a tire cavity and a rim, wherein the sidewall is positioned below a horizontal axis of a tire, the tire bead is provided with a sidewall arc, one end of the sidewall arc is tangent to a vertical straight line at the widest position of the sidewall, the tire bead is provided with a tire bead arc, a tire bead side straight line and a tire bead seat bevel edge, the connection position of the tire bead arc and the tire bead side straight line is tangent, the connection position of the sidewall arc and the tire bead arc is tangent, the bead heel is sequentially provided with a first bead heel arc and a second bead heel arc, the connection position of the first bead heel arc and the tire bead side straight line is tangent, the connection position of the second bead heel arc and the tire bead seat bevel edge is tangent, the rim is provided with a rim arc. The structure can be matched with the expansion force of the capsule, so that the tire side part of the tire blank can be more quickly attached to the mold when the tire is vulcanized, and the condition of rubber extrusion of the tire bead part caused by the stress time difference of the tire bead part and the tire side part is reduced.
Description
Technical Field
The invention relates to an aircraft tire sidewall and bead profile structure, in particular to a special aircraft tire sidewall and bead profile structure.
Background
In the design of the aircraft tire, the rubber layer at the tire bead part needs to be designed into different thicknesses according to different requirements. Generally, when a tire blank is formed, a rubber sheet with the thickness of about 0.6mm to 3.5mm needs to be attached to the outer portion of a tire bead to buffer the acting force of a contact portion between an aircraft tire framework material and a rim, and meanwhile, the rubber sheet is used as a connecting portion between the outer portion of the tire and an inner cavity to provide partial sealing performance. When the tire is vulcanized, the inflation in-process of vulcanization capsule, the child embryo atress is an unbalanced process, the bead portion position contacts the vulcanization mould earlier than the child side position, consequently, the bead portion of child embryo can receive pressure earlier, consequently, the rubber of bead side portion and bottom can consequently receive extruded effort and flow to the side of the wall position, after the tire child embryo vulcanizes, often the rubber thickness at the bead position can reduce, and then make the cushion performance and the air tightness performance at the bead position weaken, can appear the bead and reveal the line scheduling problem when more serious, consequently need design a neotype side wall and bead profile structure in order to solve the problem of the retention of foretell bead position rubber.
Disclosure of Invention
The invention aims to provide a sidewall and bead profile structure of an aircraft tire, aiming at the defects in the prior art. The structure can be matched with the expansion force of the capsule, so that the tire side part of the tire blank can be more quickly attached to the mold when the tire is vulcanized, the condition of rubber extrusion at the tire bead part caused by the stress time difference between the tire bead part and the tire side part is reduced, and the rubber thickness at the tire bead part reaches the design expectation of the tire structure.
The technical scheme for realizing the purpose of the invention is as follows:
an aircraft tire sidewall and tire bead contour structure comprises a sidewall, a tire bead, a bead heel, a tire cavity and a rim, wherein the sidewall is provided with a sidewall arc, one end of the sidewall arc is tangent to a vertical straight line at the widest part of the sidewall, the tire bead is provided with a tire bead arc, a tire bead side straight line and a tire bead seat inclined edge, the tire bead arc is tangent to the connection part of the tire bead side straight line, the sidewall arc is tangent to the connection part of the tire bead arc, the bead heel is sequentially provided with a first bead heel arc and a second bead heel arc, the connection part of the first bead heel arc and the second bead heel arc is tangent, the connection part of the first bead heel arc and the tire bead side straight line is tangent to each other, the connection part of the second bead heel arc and the tire bead seat inclined edge is tangent to each other, the rim is provided with a flange arc, a first rim arc and a second arc, the connection part of the first arc rim and the second rim arc is tangent to each other, and the bead arc, the other end of the bevel edge of the tire bead seat is connected with the tire cavity curve.
The centre of a circle of the sidewall arc is located on the horizontal axis of the tire, and the radius of the sidewall arc is 111 mm.
The radius of the bead arc is 14.30 mm-215.36 mm.
The lower end of the rim arc is tangent to the tangent point A, and the side straight line of the tire bead is tangent to the first heel arc at the tangent point B.
The length of the bead side straight line segment is the same as the length between the tangent point A and the tangent point B.
The first bead heel circular arc radius is 2.54mm, the first rim circular arc radius is the same as the first bead heel circular arc radius, the second bead heel circular arc radius is 15.24mm, and the second rim circular arc radius is the same as the second bead heel circular arc radius.
The radius of the circular arc of the wheel rim is 14.3 mm.
The tire bead rubber sheet is arranged on the periphery of a curve formed by linearly connecting the bevel edge of the tire bead seat, the second bead heel arc, the first bead heel arc and the side surface of the tire bead, the tire bead rubber sheet is in close contact with a rim, and the thickness of the tire bead rubber sheet is 0.6-3.5 mm
The structure can be matched with the expansion force of the capsule, so that the tire side part of the tire blank can be more quickly attached to the mold when the tire is vulcanized, the condition of rubber extrusion at the tire bead part caused by the stress time difference between the tire bead part and the tire side part is reduced, and the rubber thickness at the tire bead part reaches the design expectation of the tire structure.
Drawings
FIG. 1 is a schematic structural diagram of an embodiment;
fig. 2 is a schematic view showing the structure of a bead filler in the embodiment.
In the figure, 1, a tire horizontal axis 2, a tire side arc 3, a vertical straight line at the widest position of the tire side 4, a tire bead arc 5, a tire bead side straight line 6, a tire bead seat inclined edge 7, a first tire heel arc 8, a second tire heel arc 9, a wheel flange arc 10, a first wheel rim arc 11, a second wheel rim arc 12, a wheel rim 13, a tangent point A14, a tangent point B15, a tire bead rubber sheet 16 and a tire cavity curve.
Detailed Description
The invention is described in further detail below with reference to the following figures and specific examples, but the invention is not limited thereto.
Example (b):
referring to fig. 1, an aircraft tire sidewall and bead profile structure comprises a sidewall, a bead heel, a bead cavity and a rim, wherein the sidewall is positioned below a tire horizontal axis 1, the sidewall is provided with a sidewall arc 2, one end of the sidewall arc 2 is tangent to a vertical straight line 3 at the widest position of the sidewall, the bead is provided with a bead arc 4, a bead side straight line 5 and a bead seat bevel edge 6, the bead arc 4 is tangent to the joint of the bead side straight line 5, the sidewall arc 2 is tangent to the joint of the bead arc 4, the bead heel is sequentially provided with a first bead heel arc 7 and a second bead heel arc 8, the first bead heel arc 7 is tangent to the joint of the bead side straight line 5, the second bead heel arc 8 is tangent to the joint of the bead seat bevel edge 6, the rim 12 is provided with a rim arc 9, a first rim arc 10 and a second rim arc 11, the joint of the first rim arc 10 and the second rim arc 11 is tangent, the flange arc 9 is tangent to the bead arc 4, and the other end of the bead seat bevel edge 6 is connected with the bead cavity curve 16.
The centre of a circle of the sidewall arc 2 is positioned on the horizontal axis 1 of the tire, and the radius of the sidewall arc 2 is 111 mm.
The radius of the bead arc 4 is 14.30 mm-215.36 mm, in this case 104.36 mm.
The rim arc 9 and the lower end of the bead arc 4 are tangent to a tangent point A13, and the bead side straight line 5 and the first heel arc 7 are tangent to a tangent point B14.
The length of the bead side line 5 segment is the same as the length between tangent point a13 and tangent point B14.
The radius of the first bead heel circular arc 7 is 2.54mm, the radius of the first rim circular arc 10 is the same as that of the first bead heel circular arc 7, the radius of the second bead heel circular arc 8 is 15.24mm, and the radius of the second rim circular arc 11 is the same as that of the second bead heel circular arc 8.
The radius of the rim arc 9 is 14.3 mm.
As shown in fig. 2, a bead filler 15 is disposed on the periphery of a curve formed by the bead seat beveled edge 6, the second bead heel arc 8, the first bead heel arc 7 and the bead side surface straight line 5, the bead filler 15 is in close contact with the rim 12, and the thickness of the bead filler 15 is 0.6 to 3.5mm, in this example 2 mm.
The tire manufactured by adopting the structure of the embodiment is used for carrying out stress simulation analysis, and the simulation analysis result is as follows: the stress distribution concentration area avoids the tire bead part, the main concentration area is the shoulder part of the tire body layer, and the highest stress is 70.01MPa, so that the tire bead stress is uniformly distributed, and the stress condition is good.
Claims (8)
1. An aircraft tire side wall and tire bead contour structure comprises a side wall, a tire bead, a bead heel, a tire cavity and a rim, wherein the side wall is located below a tire horizontal axis, one end of the side wall arc is tangent to a vertical straight line at the widest part of the side wall, the tire bead is provided with a tire bead arc, a tire bead side straight line and a bead seat inclined edge, the connection part of the tire bead arc and the tire bead side straight line is tangent, the connection part of the tire bead arc and the tire bead arc is tangent, the bead heel is sequentially provided with a first bead heel arc and a second bead heel arc, the connection part of the first bead heel arc and the second bead arc is tangent, the connection part of the first bead heel arc and the tire bead side straight line is tangent, the connection part of the second bead heel arc and the bead seat inclined edge is tangent, the rim inclined edge is provided with a rim arc, a first rim arc and a second rim arc, the connection part of the first rim arc and the second rim arc is tangent, the arc of the wheel rim is tangent to the arc of the tire bead, and the other end of the bevel edge of the tire bead seat is connected with the curve of the tire cavity.
2. The aircraft tire sidewall and bead profile structure of claim 1, wherein the center of said sidewall arc is located on the horizontal axis of the tire and the radius of the sidewall arc is 111 mm.
3. The aircraft tire sidewall and bead profile structure of claim 1, wherein the radius of the bead arc is between 14.30mm and 215.36 mm.
4. The aircraft tire sidewall and bead profile structure of claim 1, wherein said rim arc is tangent to a lower bead arc end at tangent point a, and said bead side line is tangent to a first heel arc at tangent point B.
5. The aircraft tire sidewall and bead profile structure of claim 4, wherein said bead side straight line segment has a length equal to the length between tangent point A and tangent point B.
6. The aircraft tire sidewall and bead profile structure of claim 1, wherein said first heel arc radius is 2.54mm, said first rim arc radius is the same as said first heel arc radius, said second heel arc radius is 15.24mm, and said second rim arc radius is the same as said second heel arc radius.
7. The aircraft tire sidewall and bead profile structure of claim 1 wherein said rim arc radius is 14.3 mm.
8. The aircraft tire side wall and bead profile structure according to claim 1, wherein a bead filler is arranged on the periphery of a curve formed by connecting the bead seat bevel edge, the second bead heel arc, the first bead heel arc and the bead side surface straight line, the bead filler is in close contact with a rim, and the thickness of the bead filler is 0.6-3.5 mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911392207.7A CN110877504A (en) | 2019-12-30 | 2019-12-30 | Aircraft tire side wall and tire bead profile structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911392207.7A CN110877504A (en) | 2019-12-30 | 2019-12-30 | Aircraft tire side wall and tire bead profile structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110877504A true CN110877504A (en) | 2020-03-13 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201911392207.7A Pending CN110877504A (en) | 2019-12-30 | 2019-12-30 | Aircraft tire side wall and tire bead profile structure |
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| CN (1) | CN110877504A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114147888A (en) * | 2021-11-29 | 2022-03-08 | 安徽佳通乘用子午线轮胎有限公司 | Production method of tire with improved durability |
-
2019
- 2019-12-30 CN CN201911392207.7A patent/CN110877504A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114147888A (en) * | 2021-11-29 | 2022-03-08 | 安徽佳通乘用子午线轮胎有限公司 | Production method of tire with improved durability |
| CN114147888B (en) * | 2021-11-29 | 2023-07-28 | 安徽佳通乘用子午线轮胎有限公司 | Tire production method capable of improving durability |
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