CN115431676A - Tyre pressure-bearing ring and manufacturing process thereof - Google Patents
Tyre pressure-bearing ring and manufacturing process thereof Download PDFInfo
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- CN115431676A CN115431676A CN202110613676.8A CN202110613676A CN115431676A CN 115431676 A CN115431676 A CN 115431676A CN 202110613676 A CN202110613676 A CN 202110613676A CN 115431676 A CN115431676 A CN 115431676A
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- tire
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- pressure ring
- tires
- pressure
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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
Abstract
The invention discloses a tire pressure-bearing ring structure and a pressure-bearing ring manufacturing process. The tyre is internally provided with the bearing ring, and the bearing ring can be manufactured into one layer or a plurality of layers, so that the bearing capacity of the tyre in the rolling process is stronger. And the tire tread can be more stable in the driving process, and the integral wear resistance of the tire is improved. The structure is suitable for various types of solid tires, inflatable tires and retreaded tires, including car tires, truck tires, engineering tires, giant tires, special tires and the like, and is particularly suitable for engineering tires and giant tires with lower speed and higher load.
Description
Technical Field
The invention relates to the technical field of tire manufacturing, in particular to a tire pressure-bearing ring.
Background
Currently, all-steel radial ply-yarn passenger tires were introduced primarily by michelin, france in the fifties of the twentieth century. The all-steel radial tire structure comprises a tire tread, base rubber, a belt ply, a tire body, soft triangles, hard triangles, bead filler wear-resistant rubber, sidewall rubber, an air barrier, a transition layer and the like. Through the development of about 70 years, the all-steel radial rubber tire has obvious advantages in the aspects of performance, oil consumption and the like, and is widely popularized in the global range at present.
The belted layer is arranged between the tread and the tire body by steel wires according to different angles and is used for improving the supporting and stress parts of the tire. The main functions are as follows: firstly, the tyre body resists centrifugal force together, prevents crown outward bulge caused by the action of the centrifugal force, and ensures stable tyre outer diameter and tyre circumference. Secondly, the desired shape of the tire footprint is controlled, thereby effectively providing grip/traction. Third, it provides rigidity required for the tire to oversteer and turn, and thus provides excellent handling. Fourthly, the invasion of foreign matters on the road surface is resisted. Briefly, a belt is a tire component that is made of steel wires arranged at an angle and a rubber material is attached to the surface of the steel wires by extrusion. According to specification, type, using environment, bearing, speed and the like, the tire is designed into a structure with different belted layer numbers, different belted layer widths, different belted layer steel wire angles, different belted layer thicknesses and different belted layer steel wire thicknesses so as to meet the requirements of actual conditions.
At present, the production process of the rubber tire belt ply is complex, a certain number of steel wires are firstly arranged into a plurality of rows in an ingot room, the steel wires enter a calender at a certain speed to be adhered with rubber materials, and finally the belt ply is cut. Finally cutting the belt into belt components meeting the width and the angle, and attaching the belt components when the belt components are formed. The bias cutting process is complex and expensive in equipment and process, and also produces a large amount of leftovers, so that the manufacturing cost of the tire is increased, which is particularly prominent for engineering tires and giant tires.
The process lasts for nearly seventy years, the technical indexes are strictly controlled in the actual production, otherwise, the phenomena of uneven glue coating, steel wire leakage and the like can occur. In the using process, two ends of the steel wire rub against rubber under the dynamic condition to become a damage point, so that the tire is damaged. Although such problems cannot be fundamentally solved, the use of the steel wire increases the contact area of the rubber compound with the surface of the steel wire, so that the belt layer has a sufficiently large shear strength at the time of tire rolling shear, and thus the use of the steel wire is suitable for the production process of a viscous rubber tire.
With the development of the technology, the liquid raw material realizes the production of the tire, the whole process flow is simplified, the advantages of the liquid raw material such as fluidity, permeability, adhesiveness and adhesive strength are obvious, and the related technology refers to CN 201910815970.X, CN201911421934.1 and CN201911300250.6. The invention provides a structure and a manufacturing method which are suitable for replacing a steel wire belt layer part with a pressure bearing ring in a process of producing a tire by using a liquid raw material.
Disclosure of Invention
The invention aims to disclose a structure and a manufacturing method which are suitable for replacing a steel wire belt layer part with a pressure bearing ring in a process of producing a tire by using a liquid raw material. The tyre has a pressure-bearing structure inside, and the pressure-bearing ring can be made into one layer or multiple layers. The technology adopts liquid raw materials to produce the tire, compared with the traditional tire manufacturing process, the manufacturing process is simpler, the bearing capacity of the produced tire is stronger, and the problem of product symptoms caused by steel wires is eliminated. The pressure-bearing ring structure is suitable for various types of solid tires, inflatable tires and retreaded tires, including car tires, truck tires, engineering tires, giant tires, special tires and the like, and is particularly suitable for engineering tires and giant tires with low speed and high load.
In order to achieve the above purpose, the invention provides the following technical scheme: the pressure-bearing ring is a circular ring with holes or bulges on the surface, is made of metal or polymer composite materials and the like, is positioned below the tire tread (shown in figure 1), has the pressure-bearing function, and can keep the shape of the tire tread stable. And when the pressure-bearing ring is produced, a mechanical processing or injection molding process, a processing process and a 3D printing technology are adopted for production, surface treatment is carried out, after the surface treatment is finished, the multi-layer pressure-bearing ring is compounded, and finally the composite material is placed into a tire mold to produce the tire.
Preferably, the tire pressure bearing ring material can be a high polymer material, a metal material, a carbon fiber material, a composite material and the like.
Preferably, the inner rim surface of the tire may have holes of various shapes, such as circular, triangular, oval, linear, etc., as shown in fig. 2.
Preferably, the surface of the inner bearing ring of the tire can be provided with bulges with various shapes, as shown in figure 3.
Preferably, the inner pressure ring of the tire may be provided in a single layer or a multi-layer structure, as shown in fig. 4.
Preferably, when the tire inner pressure ring is of a multilayer structure, adhesive connection or mechanical connection can be used between every two layers.
Preferably, the width and the thickness of the inner multilayer pressure ring can be different.
Preferably, the inner multilayer bearing ring can be formed by injection molding, casting molding, machining molding, 3D printing molding and rotational molding according to the material.
Preferably, the inner pressure ring may be added with any support material or structure, as shown in fig. 5.
Preferably, the ring pre-forming process in the manufacturing process of the inner bearing ring forms various holes or patterns on the surface of the material through machining or other methods.
Preferably, in the ring forming step in the manufacturing process of the inner pressure ring, the material is manufactured into a circular ring-shaped component by machining (metals), injection molding (polymer composites), and casting (polymer composites).
Preferably, the surface treatment process is carried out in the manufacturing process of the internal pressure-bearing ring, so that the surface is roughened, and then an adhesive is coated or sprayed on the surface, and the surface is dried.
Preferably, the bearing rings with the same diameter are combined into a whole in a combining procedure in the manufacturing process of the inner bearing ring, and multiple layers are connected through mechanical connection.
The tire adopting the inner pressure ring structure has the following characteristics. (1) The tire with the pressure bearing ring structure is more suitable for a liquid raw material production process (2) to replace a steel wire belt ply, so that the production is simplified, the process control level and the fault tolerance rate are greatly improved, and the investment of fixed assets is greatly reduced; (3) The steel wire is not used, so that the disease phenomenon that the steel wire punctures the tire is eliminated; (4) the integral pressure bearing capacity of the tire is improved; (5) The introduction of the pressure bearing ring ensures that the tread is more stable in the rolling process, the wear resistance is improved, and the service life is prolonged; (6) The pressure bearing rings can be customized in batches, so that the production efficiency is greatly improved; (7) The inner bearing ring is used to realize unmanned production of the tire by combining the molding process in the patent CN 110561979A; (8) The use of inside pressure ring can extend more tire structures, is fit for different occasions and uses. (9) The pressure bearing ring can be made of various materials with higher strength, such as metal, high polymer and carbon fiber, and the application range of tire materials is expanded. (10) Other functional external hanging parts can be added on the inner side and the outer side of the bearing ring.
The tire inner pressure bearing ring provided by the invention has the advantages that the tire manufacturing process is simplified, the tire bearing performance is greatly improved, and the tire inner pressure bearing ring is more suitable for the process of producing the tire by using liquid raw materials. The bearing ring is suitable for various types of solid tires, inflatable tires and retreaded tires, including car tires, truck tires, engineering tires, giant tires, special tires and the like, and is particularly suitable for engineering tires and giant tires with low speed and high load.
Drawings
In order to more clearly illustrate the embodiments of the present application or technical solutions in the prior art, the drawings needed to be used in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments described in the present invention, and other drawings can be obtained by those skilled in the art according to the drawings.
FIG. 1 is a schematic cross-sectional view of a tire with a pressure ring;
FIG. 2 is a schematic view of the shape of the holes on the surface of the backing ring;
FIG. 3 is a schematic view of a bearing ring surface embossment;
FIG. 4 is a schematic view of a multi-layer pressure ring;
FIG. 5 is a schematic view of the reinforcing structure of the inner side and the outer side of the bearing ring;
Detailed Description
In order to make the technical solutions of the present invention better understood, those skilled in the art will now describe the present invention in further detail with reference to the accompanying drawings.
It should be noted that, in this document, relational terms such as first and second, and the like are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or terminal that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or terminal. Without further limitation, an element defined by the phrases "comprising … …" or "comprising … …" does not exclude the presence of additional elements in a process, method, article, or terminal that comprises the element. Further, in this document, "greater than," "less than," "more than," and the like are understood to not include the present numbers; the terms "above", "below", "within" and the like are to be understood as including the number.
Taking the specification of a forklift tire of 12.00-10 as an example, the manufacturing method of different types of pressure bearing rings is as follows
Example 1
The description will be made taking a steel material, spring steel, as an example.
A ring pre-forming process: the steel sheet is cut by laser, the length of the steel sheet is 157cm, the width of the steel sheet is 25cm, and the thickness of the steel sheet is 0.5cm.
A ring forming process: the spring steel bar is folded into a circular ring through a bending machine, two ends of the spring steel bar are connected through welding, a welding opening is polished, and two sides of the spring steel bar are polished and smooth.
A surface treatment process: and (3) carrying out surface roughening treatment on the spring steel circular ring, then coating an epoxy adhesive, and blowing hot air to dry to finish the process.
The tire is placed into a mold to realize tire molding according to the method of CN 110561979A.
Example 2
The pressure ring with a round hole on the steel surface of the steel spring is taken as an example for description.
A ring pre-forming process: and cutting off a small circle on the spring steel by laser cutting to form a long steel sheet with a circular hole in a certain size, wherein the length of the steel sheet is 157cm, the width of the steel sheet is 25cm, and the thickness of the steel sheet is 0.5cm.
A ring forming process: the spring steel bar is folded into a circular ring through a bending machine, two ends of the spring steel bar are connected through welding, a welding opening is polished, and two sides of the spring steel bar are polished and smooth.
A surface treatment process: and (3) carrying out surface roughening treatment on the spring steel circular ring, then coating an epoxy adhesive, and blowing hot air to dry to finish the process.
The tire is placed into a mold to realize tire molding according to the method of CN 110561979A.
Example 3
The pressure ring with a strip-shaped hole on the steel surface of the spring made of steel material is taken as an example for description.
A ring pre-forming process: and cutting off a strip-shaped hole on the spring steel by laser cutting to form a strip-shaped steel sheet with a certain size and a strip-shaped hole, wherein the length of the steel sheet is 157cm, the width of the steel sheet is 25cm, and the thickness of the steel sheet is 0.5cm.
A ring forming process: the spring steel bar is folded into a circular ring through a bending machine, two ends of the spring steel bar are connected through welding, a welding opening is polished, and two sides of the spring steel bar are polished and smooth.
A surface treatment process: and (3) carrying out surface roughening treatment on the spring steel circular ring, then coating an epoxy adhesive, and blowing hot air to dry to finish the process.
The tire is placed into a mold to realize tire molding according to the method of CN 110561979A.
Example 4
The steel material spring steel double-layer pressure bearing ring is taken as an example for description.
A ring pre-forming process: cutting off a small circle on the spring steel by laser cutting to form a long steel sheet with a circular hole of a certain size, wherein the lengths of the two steel sheets are 157cm and 156.5cm respectively, the width of the steel sheet is 25cm, and the thickness of the steel sheet is 0.5cm.
A ring forming process: and folding the spring steel bar into a circular ring through a bending machine, connecting two ends by welding, and polishing a welding port.
A surface treatment process: and (3) carrying out surface roughening treatment on the spring steel circular ring, then coating an epoxy adhesive, and blowing hot air to dry.
A compounding procedure: the bearing rings with different diameters are combined into a whole, and multiple layers are mechanically connected, as shown in figure 4. The tire is placed into a mold to realize tire molding according to the method of CN 110561979A.
Example 5
The inner and outer reinforcing structures of the steel material spring steel pressure ring are taken as an example for description.
A ring pre-forming process: cutting off a small circle on the spring steel by laser cutting to form a long steel sheet with a circular hole of a certain size, wherein the length of the steel sheet is 157cm, the width of the steel sheet is 25cm, and the thickness of the steel sheet is 0.5cm.
A ring forming process: and folding the spring steel bar into a circular ring through a bending machine, connecting two ends by welding, and polishing a welding port. And steel rings are fixed on the inner side and the outer side of the circular ring for reinforcement, as shown in figure 5.
A surface treatment process: and (3) carrying out surface roughening treatment on the spring steel circular ring, then coating an epoxy adhesive, and blowing hot air to dry to finish the process.
The tire is placed into a mold to realize tire molding according to the method of CN 110561979A.
Example 6
The steel material spring steel pressure ring flange reinforcing structure is taken as an example for description.
A ring pre-forming process: cutting off a small circle on the spring steel by laser cutting to form a long steel sheet with a circular hole of a certain size, wherein the length of the steel sheet is 157cm, the width of the steel sheet is 25cm, and the thickness of the steel sheet is 0.5cm.
A ring forming process: and folding the spring steel bar into a circular ring through a bending machine, connecting two ends by welding, and polishing a welding port. And flange structures are additionally arranged on two sides of the circular ring for reinforcement.
A surface treatment process: and (3) carrying out surface roughening treatment on the spring steel circular ring, then coating an epoxy adhesive, and blowing hot air to dry to finish the process.
The tire is placed into a mold to realize tire molding according to the method of CN 110561979A.
Example 7
An injection molding process using high-strength high polymer material TPU as a pressure bearing ring is described as an example.
A ring forming process: and directly injecting rings with various holes or shapes on the surface in the mold by using an injection molding machine.
A surface treatment process: and (3) carrying out surface roughening treatment on the polymer ring, then coating an epoxy adhesive, and blowing hot air to dry to finish the process.
And placing the tire into a mold to realize tire molding according to the method of the patent CN 110561979A.
Example 8
The casting process using the high-strength polymer material CPU as the bearing ring is described as an example.
A ring forming process: and (3) casting the circular rings with various holes or shapes on the surface in the mould by adopting a casting process.
A surface treatment process: and (3) carrying out surface roughening treatment on the polymer ring, then coating an epoxy adhesive, and blowing hot air to dry to finish the process.
And placing the tire into a mold to realize tire molding according to the method of the patent CN 110561979A.
Example 9
The steel spring steel and the high polymer TPU composite double-layer pressure ring are taken as an example for description.
A ring pre-forming process: and cutting off a small circle on the spring steel by laser cutting to form a long steel sheet with a circular hole in a certain size, wherein the length of the steel sheet is 157cm, the width of the steel sheet is 25cm, and the thickness of the steel sheet is 0.5cm.
The inner ring is injection molded by TPU. And directly injecting rings with various holes or shapes on the surface in the mold by using an injection molding machine.
A ring forming process: and folding the spring steel bar into a circular ring through a bending machine, connecting two ends by welding, and polishing a welding port.
A surface treatment process: and performing surface roughening treatment on the spring steel circular ring, then coating an epoxy adhesive, and blowing hot air to dry.
A compounding procedure: the bearing rings with different diameters are combined into a whole, and the layers are connected by screws in the embodiment 10
The steel material spring steel and the polymer-wrapped pressure ring are taken as examples for description.
A ring forming process: a steel pressure-bearing ring is embedded in the injection mold, the width of the pressure-bearing ring is 25cm, and the thickness of the pressure-bearing ring is 0.5cm. And (3) injection molding the TPU high polymer material in a mold by using an injection molding machine, cooling and completing the pressure-bearing ring.
A surface treatment process: and (3) carrying out surface roughening treatment on the polymer ring, then coating an epoxy adhesive, and blowing hot air to dry to finish the process.
The tire is placed into a mold to realize tire molding according to the method of CN 110561979A.
In the technical scheme, the tire pressure bearing ring and the manufacturing method provided by the invention have the following beneficial effects:
the tire adopting the inner pressure ring structure has the following characteristics. (1) The tire with the pressure bearing ring structure is more suitable for a liquid raw material production process (2) to replace a steel wire belt ply, so that the production is simplified, the process control level and the fault tolerance rate are greatly improved, and the investment of fixed assets is greatly reduced; (3) The steel wire is not used, so that the pathological condition that the steel wire punctures the tire is eliminated; (4) the integral pressure bearing capacity of the tire is improved; (5) The introduction of the pressure bearing ring ensures that the tread is more stable in the rolling process, the wear resistance is improved, and the service life is prolonged; (6) The pressure bearing rings can be customized in batches, so that the production efficiency is greatly improved; (7) The inner bearing ring is used to realize unmanned production of the tire by combining the molding process in the patent CN 110561979A; (8) The use of inside pressure ring can extend more tire structures, is fit for different occasions and uses. (9) The pressure bearing ring can be made of various materials with higher strength, such as metal, high polymer and carbon fiber, and the application range of tire materials is expanded. (10) Other functional plug-in components can be added on the inner side and the outer side of the bearing ring.
The tire inner pressure bearing ring provided by the invention has the advantages that the tire manufacturing process is simplified, the tire bearing performance is greatly improved, and the tire inner pressure bearing ring is more suitable for the process of producing the tire by using liquid raw materials. The bearing ring is suitable for various types of solid tires, inflatable tires and retreaded tires, including car tires, truck tires, engineering tires, giant tires, special tires and the like, and is particularly suitable for engineering tires and giant tires with low speed and high load.
While certain exemplary embodiments of the present invention have been described above by way of illustration only, it will be apparent to those of ordinary skill in the art that the described embodiments may be modified in various different ways without departing from the spirit and scope of the invention. Accordingly, the drawings and description are illustrative in nature and should not be construed as limiting the scope of the invention.
Claims (10)
1. A tire pressure-bearing ring structure is characterized in that a pressure-bearing ring structure is arranged in a tire, the pressure-bearing ring is positioned below a tire tread, has a pressure-bearing function, and can keep the tire tread stable in character; the manufacturing of the pressure bearing ring made of different materials is mainly divided into a ring pre-forming process, a ring forming process, a surface treatment process and a compounding process.
2. The tire pressure ring structure of claim 1, wherein the tire inner pressure ring is made of polymer material, metal material, carbon fiber material or composite material.
3. A tire pressure ring structure according to claim 1, wherein said tire inner pressure ring surface has holes of various shapes, such as circular, triangular, oval, elongated and various shaped protrusions.
4. A tire pressure ring structure as in claim 1, wherein said tire inner pressure ring is provided in a single layer or a multi-layer structure.
5. The tire pressure ring structure of claim 1, wherein the inner multi-layer pressure ring has different widths and thicknesses.
6. The tire pressure ring structure of claim 1, wherein when the tire inner pressure ring is a multi-layer structure, adhesive connection, mechanical connection, and welding connection can be used between each layer.
7. The tire pressure ring structure of claim 1, wherein the inner pressure ring is made of different materials and can be formed by injection molding, casting molding, machining molding, 3D printing and rotational molding.
8. A tire pressure ring structure as in claim 1, wherein said inner pressure ring is wrapped with cords of various materials.
9. The tire pressure ring structure of claim 1, wherein the inner multi-layer pressure ring can be added with any support material or structure.
10. A tire pressure ring structure according to any one of claims 1 to 9, manufactured by a method comprising:
a ring pre-forming process: the working procedure is mainly to form various holes or patterns on the surface of the material by processing or other methods;
a ring forming process: the material is made into a circular annular part through machining or 3D printing (metal), injection molding (polymer composite materials) and pouring (polymer composite materials), and the joints are connected and processed;
a surface treatment process: performing surface treatment after the materials are looped to roughen the surface, performing smooth treatment on two sides, coating an adhesive, and drying;
a compounding procedure: combining bearing rings with different diameters into a whole, and connecting multiple layers by adopting a mechanical structure or a welding mode;
and placing the tire into a mold to realize tire molding according to the method of the patent CN 110561979A.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110613676.8A CN115431676A (en) | 2021-06-02 | 2021-06-02 | Tyre pressure-bearing ring and manufacturing process thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN202110613676.8A CN115431676A (en) | 2021-06-02 | 2021-06-02 | Tyre pressure-bearing ring and manufacturing process thereof |
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| CN115431676A true CN115431676A (en) | 2022-12-06 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202110613676.8A Pending CN115431676A (en) | 2021-06-02 | 2021-06-02 | Tyre pressure-bearing ring and manufacturing process thereof |
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Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4111249A (en) * | 1976-11-08 | 1978-09-05 | Grumman Aerospace Corporation | Band reinforced radial tire |
| WO1992012866A1 (en) * | 1991-01-24 | 1992-08-06 | Gyula Subotics | Vehicle tyre |
| CN2415952Y (en) * | 2000-03-01 | 2001-01-24 | 韩传平 | Tyre |
| US6598634B1 (en) * | 1998-04-08 | 2003-07-29 | Bridgestone Corporation | Cured tire including encapsulated high modulus composite |
| US20050126669A1 (en) * | 2003-12-15 | 2005-06-16 | Roedseth John K. | Tire with deep tread grooves |
| JP2007161054A (en) * | 2005-12-13 | 2007-06-28 | Bridgestone Corp | Pneumatic tire |
| CN102874055A (en) * | 2012-10-09 | 2013-01-16 | 北京化工大学 | Aircraft tire with double-steel-ring structure |
| CN205523426U (en) * | 2016-01-16 | 2016-08-31 | 建泰橡胶(深圳)有限公司 | Polyembryony body tire |
| CN209700303U (en) * | 2019-03-12 | 2019-11-29 | 籍建明 | A kind of modified all steel load radial tire |
| CN110561979A (en) * | 2019-08-30 | 2019-12-13 | 青岛慕沃科技有限公司 | polyurethane pneumatic tire and manufacturing method thereof |
-
2021
- 2021-06-02 CN CN202110613676.8A patent/CN115431676A/en active Pending
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4111249A (en) * | 1976-11-08 | 1978-09-05 | Grumman Aerospace Corporation | Band reinforced radial tire |
| WO1992012866A1 (en) * | 1991-01-24 | 1992-08-06 | Gyula Subotics | Vehicle tyre |
| US6598634B1 (en) * | 1998-04-08 | 2003-07-29 | Bridgestone Corporation | Cured tire including encapsulated high modulus composite |
| CN2415952Y (en) * | 2000-03-01 | 2001-01-24 | 韩传平 | Tyre |
| US20050126669A1 (en) * | 2003-12-15 | 2005-06-16 | Roedseth John K. | Tire with deep tread grooves |
| JP2007161054A (en) * | 2005-12-13 | 2007-06-28 | Bridgestone Corp | Pneumatic tire |
| CN102874055A (en) * | 2012-10-09 | 2013-01-16 | 北京化工大学 | Aircraft tire with double-steel-ring structure |
| CN205523426U (en) * | 2016-01-16 | 2016-08-31 | 建泰橡胶(深圳)有限公司 | Polyembryony body tire |
| CN209700303U (en) * | 2019-03-12 | 2019-11-29 | 籍建明 | A kind of modified all steel load radial tire |
| CN110561979A (en) * | 2019-08-30 | 2019-12-13 | 青岛慕沃科技有限公司 | polyurethane pneumatic tire and manufacturing method thereof |
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