A special explosion-proof tire with multiple airbags based on composite metal rubber

Abstract

The present invention proposes a multi-airbag special explosion-proof tire based on composite metal rubber, wherein the tire carcass (2) uses an elastic porous composite metal rubber structure (3) on the inner side of the tire as a support skeleton, the porous composite metal rubber structure is annular, and the inner side of the porous composite metal rubber structure is connected to a rubber protective ring (4), and a plurality of airbag grooves with built-in airbags are provided between the porous composite metal rubber structure and the rubber protective ring; a plurality of cavity structures (10) are further provided inside the porous composite metal rubber structure, and the distribution area of ​​the cavity structures is located outside the airbag distribution area; the cavity structures are filled with high-damping fillers; the present invention has strong explosion-proof capability, high reliability, and simple process, and utilizes the excellent characteristics of high damping, strong support, wear resistance and reliability of the composite metal rubber to enable the tire to maintain high stability under strong external impact.

Description

Technical Field

[0001] The invention relates to the technical field of special explosion-proof tires, in particular to a multi-airbag special explosion-proof tire based on composite metal rubber. Background Art

[0002] Tires, as an integral part of the vehicle, play a crucial role in transportation. Their performance directly impacts a vehicle's power, braking, driving stability, ride comfort, off-road capability, and fuel economy. In recent years, new run-flat tires have become available. Compared to conventional tires, these offer greater stability and reliability. They can maintain a certain level of driving stability even after a puncture, significantly reducing the likelihood of serious accidents caused by tire blowouts.

[0003] Currently, existing conventional explosion-proof tires cannot actually prevent blowouts or air leaks. The reason these tires don't collapse immediately after deflation is that they have thickened sidewalls, which can support the vehicle's weight to a certain extent, preventing them from severely deforming. However, when the vehicle is heavy, even with thickened sidewalls, they cannot support the vehicle's weight, and the support capacity will be lost, making it impossible for the vehicle to move forward smoothly. At the same time, special vehicles and equipment often operate in even more harsh environments, and may even need to withstand damage from artillery fire, bullets, etc. Conventional rubber explosion-proof tires cannot withstand such damage and clearly cannot meet actual needs. Therefore, the development of a new type of special explosion-proof tire is of great significance.

[0004] As a new type of homogeneous elastic porous material, metal rubber has both the elasticity and damping properties similar to those of rubber materials and the excellent properties of metal materials. It is widely used in vibration isolation, vibration reduction, sealing, noise reduction, etc. By utilizing the excellent high damping and strong support characteristics of metal rubber, a special explosion-proof tire with better explosion-proof performance and higher reliability can be designed. Summary of the Invention

[0005] The present invention proposes a multi-airbag special explosion-proof tire based on composite metal rubber, which has strong explosion-proof ability, high reliability and simple process. The excellent properties of composite metal rubber, such as high damping, strong support, wear resistance and reliability, are utilized to enable the tire to maintain high stability under strong external impact; by designing multiple independent airbags distributed in horizontal rows, after the tire is ruptured by a strong impact from an external object, it can maintain its original support performance with the help of other intact airbags, thereby improving its impact and explosion-proof capabilities and ensuring that the vehicle can travel smoothly and safely.

[0006] The present invention adopts the following technical solutions.

[0007] A multi-airbag special explosion-proof tire based on composite metal rubber, wherein the tire carcass (2) uses an elastic porous composite metal rubber structure (3) on the inner side of the tire as a support frame, the porous composite metal rubber structure is annular, and the inner side of the porous composite metal rubber structure is connected to a rubber protective ring (4), and a plurality of airbag grooves with built-in airbags are provided between the porous composite metal rubber structure and the rubber protective ring; a plurality of cavity structures (10) are also provided inside the porous composite metal rubber structure, and the distribution area of ​​the cavity structures is located outside the airbag distribution area; and the cavity structures are filled with high-damping fillers.

[0008] The high-damping filler is a polymer material polyurethane with high wear resistance, high tensile tear strength, strong deformation recovery ability, low temperature resistance, UV resistance and long service life.

[0009] The preparation method of the porous composite metal rubber structure is specifically as follows: vacuum infiltration composite the metal rubber elastomer with a cavity structure with the polymer material polyurethane, and the polyurethane is filled into the pores and cavities of the metal rubber elastomer by vacuum infiltration to form a polyurethane-metal rubber composite.

[0010] The preparation method of the cavity structure in the metal rubber elastomer is as follows: a ring-shaped flat cylindrical blank is made of high-damping, strong-support, wear-resistant and reliable metal rubber; during the blank forming process, multiple hard hollow rubber tubes are arranged inside the blank; after the blank is stamped into a metal rubber blank, it is quenched within the high-temperature resistance range of the metal rubber to melt the hard hollow rubber tubes embedded inside; finally, it is cleaned and dried to obtain a metal rubber elastic part with a cavity structure.

[0011] During the preparation of the cavity structure in the metal rubber elastomer, six hard hollow rubber tubes are arranged inside the blank. After the hard hollow rubber tubes embedded inside are melted away, ultrasonic cleaning is used for cleaning and electric blast drying is used for drying.

[0012] The airbags in the airbag groove include a large airbag (9) and a small airbag (8). An inflation port for inflation is left on the surface of the airbag. After the airbag is inflated, it is installed in the airbag groove between the rubber protective ring and the composite metal rubber. Each airbag is independently distributed in a horizontal row.

[0013] The large airbags and small airbags are both annular airbags, with two of each set to two. The two large airbags are adjacent to each other, and the two small airbags are separately arranged on both sides of the large airbag distribution area to form a protective support structure for the tire. If the tire is punctured by an external object and causes the small airbag to rupture, the tire uses the large airbag to ensure that the overall air pressure and center of gravity of the tire remain relatively stable, thereby maintaining stable operation of the tire over a long distance.

[0014] The porous composite metal rubber structure further includes a metal rubber side wing (7) adhered to the tire carcass rubber side wall, the metal rubber side wing being used to enhance the explosion-proof and impact-resistant capabilities of the tire side wall;

[0015] An outer tire pattern (1) is provided at the outer edge area of ​​the tire body.

[0016] An annular wheel hub (5) is provided in the middle area of ​​the tire, and a wheel hub steel ring (6) is provided on the inner edge of the wheel hub.

[0017] The rubber protective ring is an annular structure made of silicone rubber material. Its inner edge area is tightly connected to the outer ring of the wheel hub, and the outer edge area is provided with a groove for placing the airbag. The groove forms a positioning structure for the airbag and a protective structure for the airbag.

[0018] The present invention proposes a special explosion-proof tire based on composite metal rubber with multiple airbags, which has strong explosion-proof capability, high reliability and simple process. The excellent properties of the composite metal rubber, such as high damping, strong support, wear resistance and reliability, enable the tire to maintain high stability even under strong external impact. By designing multiple independent airbags distributed in horizontal rows, the tire can maintain its original support performance with the help of other intact airbags after being ruptured by a strong impact from an external object, thereby improving its impact and explosion-proof capabilities and ensuring that the vehicle can travel smoothly and safely.

[0019] Compared with the prior art, the present invention has the following beneficial effects:

[0020] 1. Through innovative design of the tire structure, elastic porous composite metal rubber material is introduced into the tire structure as the tire's supporting skeleton. Utilizing the excellent high damping performance of metal rubber, it not only enhances the tire's support, but also greatly strengthens the tire's explosion-proof and impact resistance capabilities;

[0021] 2. The design of multiple independent horizontally distributed airbags ensures that even if the explosion-proof tire is ruptured by external impact, the remaining intact airbags can still maintain their original support performance to the greatest extent possible, ensuring that the vehicle can continue to run smoothly and safely.

[0022] 3. The combined structural design of conventional outer tire and composite metal rubber keeps the tire manufacturing process basically unchanged, simplifies the production process and reduces the production cost. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] The present invention is further described in detail below with reference to the accompanying drawings and specific embodiments:

[0024] Attachment Figure 1 This is a schematic cross-sectional view of the main part of the explosion-proof tire of the present invention;

[0025] Attachment Figure 2 Schematic side and cross-sectional views of the explosion-proof tire of the present invention;

[0026] Attachment Figure 3 This is a partially enlarged schematic diagram of the explosion-proof tire of the present invention;

[0027] Explanation of the numbers in the figure: 1-tire pattern, 2-tire body, 3-composite metal rubber structure, 4-rubber protective ring, 5-wheel hub, 6-wheel hub steel ring, 7-metal rubber side wings, 8-small airbag, 9-large airbag, 10-cavity structure. DETAILED DESCRIPTION

[0028] The following further describes the specific embodiments of the present invention in conjunction with the accompanying drawings. It should be noted that the description of these embodiments is used to help understand the present invention, but does not constitute a limitation of the present invention.

[0029] As shown in the figure, a multi-airbag special explosion-proof tire based on composite metal rubber has a tire carcass 2 with an elastic porous composite metal rubber structure 3 on the inner side of the tire as a supporting skeleton. The porous composite metal rubber structure is annular and is connected to a rubber protective ring 4 on the inner side of the porous composite metal rubber structure. A plurality of airbag grooves with built-in airbags are provided between the porous composite metal rubber structure and the rubber protective ring. A plurality of cavity structures 10 are also provided inside the porous composite metal rubber structure. The distribution area of ​​the cavity structures is located on the outer side of the airbag distribution area. The cavity structures are filled with high-damping fillers.

[0030] The high-damping filler is a polymer material polyurethane with high wear resistance, high tensile tear strength, strong deformation recovery ability, low temperature resistance, UV resistance and long service life.

[0031] The preparation method of the porous composite metal rubber structure is specifically as follows: vacuum infiltration composite the metal rubber elastomer with a cavity structure with the polymer material polyurethane, and the polyurethane is filled into the pores and cavities of the metal rubber elastomer by vacuum infiltration to form a polyurethane-metal rubber composite.

[0032] The preparation method of the cavity structure in the metal rubber elastomer is as follows: a ring-shaped flat cylindrical blank is made of high-damping, strong-support, wear-resistant and reliable metal rubber; during the blank forming process, multiple hard hollow rubber tubes are arranged inside the blank; after the blank is stamped into a metal rubber blank, it is quenched within the high-temperature resistance range of the metal rubber to melt the hard hollow rubber tubes embedded inside; finally, it is cleaned and dried to obtain a metal rubber elastic part with a cavity structure.

[0033] During the preparation of the cavity structure in the metal rubber elastomer, six hard hollow rubber tubes are arranged inside the blank. After the hard hollow rubber tubes embedded inside are melted away, ultrasonic cleaning is used for cleaning and electric blast drying is used for drying.

[0034] The airbags in the airbag groove include a large airbag 9 and a small airbag 8. An inflation port for inflation is left on the surface of the airbag. After the airbag is inflated, it is installed in the airbag groove between the rubber protective ring and the composite metal rubber. Each airbag is independently distributed in a horizontal row.

[0035] The large airbags and small airbags are both annular airbags, with two of each set to two. The two large airbags are adjacent to each other, and the two small airbags are separately arranged on both sides of the large airbag distribution area to form a protective support structure for the tire. If the tire is punctured by an external object and causes the small airbag to rupture, the tire uses the large airbag to ensure that the overall air pressure and center of gravity of the tire remain relatively stable, thereby maintaining stable operation of the tire over a long distance.

[0036] The porous composite metal rubber structure further includes a metal rubber side wing 7 attached to the tire carcass rubber side wall, the metal rubber side wing is used to enhance the explosion-proof and impact-resistant capabilities of the tire side wall;

[0037] A tire pattern 1 is provided at the outer edge area of ​​the tire body.

[0038] An annular wheel hub 5 is provided in the middle area of ​​the tire, and a wheel hub steel rim 6 is provided on the inner edge of the wheel hub.

[0039] The rubber protective ring is an annular structure made of silicone rubber material. Its inner edge area is tightly connected to the outer ring of the wheel hub, and the outer edge area is provided with a groove for placing the airbag. The groove forms a positioning structure for the airbag and a protective structure for the airbag.

[0040] Example 1:

[0041] like Figures 1-3 As shown, a multi-airbag explosion-proof tire based on composite metal rubber, its specific features include a tire pattern 1, a tire body 2, a composite metal rubber 3, a rubber protective ring 4, a wheel hub 5, a wheel hub steel ring 6, a metal rubber side wing 7, a small airbag 8, a large airbag 9, and a cavity 10;

[0042] Preferably, the general structure and manufacturing process of the wheel hub 5, wheel hub steel rim 6, tire carcass 2, and tire tread 1 are not significantly different from those of conventional tires, and can be produced using existing tire production lines. In addition, the tire carcass 2 and wheel hub 5 can be assembled using conventional tire disassembly and assembly machines, without increasing the difficulty of assembly.

[0043] Preferably, the composite metal rubber 3 is a composite of polyurethane material and metal rubber elastomer. The metal rubber material has excellent properties of high damping, strong support, wear resistance and reliability. By arranging a hard hollow rubber tube during the blank preparation process and performing a quenching treatment after stamping, a metal rubber elastomer with a cavity structure can be obtained. The polyurethane material has excellent properties such as high wear resistance, high tensile tear strength, strong deformation recovery ability, low temperature resistance, UV resistance, and long service life, and is widely used in the field of vibration and noise reduction. The polyurethane is filled into the pores and cavities 10 of the metal rubber elastomer by a vacuum infiltration method as a high-damping filler in the composite metal rubber 3. The composite metal rubber 3 plays a role of strong support and high load-bearing as a supporting skeleton in the tire structure, so that the tire can still maintain high stability under strong external impact.

[0044] Preferably, the composite metal rubber 3 further has metal rubber side wings 7, which can be fitted with the tire carcass rubber sidewall, greatly enhancing the explosion-proof and impact-resistant capabilities of the tire sidewall;

[0045] Preferably, the large airbag 9 and the small airbag 8 are each provided with two, each airbag is independently arranged in a horizontal row, and the two small airbags 8 are arranged on both sides of the large airbag 9 to play a protective and supporting role. In extreme cases, when the tire is punctured by an external object and the small airbag 8 ruptures, the large airbag 9 can still ensure that the overall air pressure and center of gravity of the tire remain relatively stable, so that the tire can still run stably for a long distance. The small airbag 8 and the large airbag 9 are made of ordinary thin rubber into a ring shape, and an inflation port for inflation is reserved on the airbag. After inflation, they are installed in the airbag groove between the rubber protective ring 4 and the composite metal rubber 3;

[0046] Preferably, the rubber protective ring 4 is made of silicone rubber material with strong damping performance, good rebound performance, good sealing performance, and high and low temperature resistance. One end is tightly connected to the hub steel ring 6, and the other end is designed with four grooves for placing the airbags 8 and 9, which not only positions the airbags in the correct position but also protects the airbags.

[0047] Example 2:

[0048] The tire carcass and wheel hub are assembled together through a tire disassembly and assembly machine and then installed on the axle. During operation, the high damping and strong support characteristics of the composite metal rubber skeleton can quickly dissipate the energy of the external impact on the tire, making the vehicle run more smoothly. When the outer rubber layer of the tire is ruptured by the impact of an external sharp object, the strong support characteristics of the composite metal rubber can still support the weight of the vehicle body and consume the energy of the impact object. In extreme cases, if the impact object penetrates into the tire and causes the small airbag on the side to rupture, the intact large airbag can still ensure that the overall air pressure and center of gravity of the tire remain relatively stable, so that the tire can still run stably for a long distance.

[0049] Example 3:

[0050] A multi-airbag special explosion-proof tire based on composite metal rubber, comprising a tire pattern, a tire body, a composite metal rubber, a rubber protective ring, a wheel hub, a wheel hub steel ring, a small airbag, a large airbag, and a cavity; the tire pattern, tire body, composite metal rubber, large airbag, small airbag, rubber protective ring, and wheel hub are sequentially arranged in a radial direction;

[0051] In this example, the outer tire pattern is located on the outer ring of the tire body, which can effectively improve the tire's grip and prevent the tire from slipping on wet, gravel, and other roads. The wheel hub, wheel hub rim, tire body, and tire pattern are not significantly different from those of existing ordinary molded tires, and their general structure and process flow are basically unchanged, thus avoiding the need to redesign the production line and effectively reducing the production and processing costs of the composite metal rubber.

[0052] The composite metal rubber is a polyurethane-metal rubber composite formed by vacuum infiltration of a metal rubber elastomer with a cavity structure and a polymer material polyurethane. The composite metal rubber has the excellent properties of high load-bearing capacity, superelasticity, wear resistance and durability of the metal rubber elastomer, and high wear resistance and tensile tear strength of the polyurethane material. The metal rubber with a cavity structure is finally formed into an annular flat cylindrical shape using a blank preparation process. During the blank forming process, six hard hollow rubber hoses are arranged inside the blank. After the metal rubber blank is stamped and formed, the metal rubber molded part is quenched by utilizing the high temperature resistance of the metal rubber to melt the hard hollow rubber hoses embedded inside. Finally, it is ultrasonically cleaned and electrically dried to obtain a metal rubber part with a cavity structure. The outer ring of the composite metal rubber is tightly connected to the tread of the tire carcass through the polyurethane material. The composite metal rubber also has a sidewall structure that can be laminated to the rubber sidewall of the tire carcass, greatly enhancing the explosion-proof and impact-resistant capabilities of the tire sidewall.

[0053] The large and small airbags are made of ordinary thin rubber into a ring shape. An inflation port is left on the airbag for inflation. After inflation, they are installed in the airbag groove between the rubber protective ring and the composite metal rubber. Each airbag is independently distributed in a horizontal row. The two small airbags are arranged on both sides of the two large airbags to provide protection and support. In extreme cases, when the tire is punctured by an external object and the small airbag ruptures, the large airbag can still ensure that the overall air pressure and center of gravity of the tire remain relatively stable, so that the tire can still run stably for a long distance.

[0054] The rubber protective ring is made of silicone rubber material, one end of which is tightly connected to the outer ring of the wheel hub, and the other end is designed with a groove for placing the airbag, which can position the airbag in the correct position and protect the airbag at the same time.

[0055] The above is a further detailed description of the present invention in conjunction with specific preferred embodiments, and the specific implementation of the present invention should not be considered to be limited to these descriptions. For those skilled in the art of the present invention, several simple deductions or substitutions can be made without departing from the concept of the present invention, and all of these should fall within the scope of protection of the present invention.

Claims

1. A multi-airbag special explosion-proof tire based on composite metal rubber, characterized by: The tire carcass (2) is supported by an elastic porous composite metal rubber structure (3) on the inner side of the tire. The porous composite metal rubber structure is annular and is connected to a rubber protective ring (4) on the inner side of the porous composite metal rubber structure. A plurality of airbag grooves with built-in airbags are provided between the porous composite metal rubber structure and the rubber protective ring. The porous composite metal rubber structure is further provided with a plurality of cavity structures (10) inside. The distribution area of ​​the cavity structures is located outside the airbag distribution area. The cavity structures are filled with a high-damping filler. The method for preparing the porous composite metal rubber structure specifically comprises: performing vacuum infiltration compounding on a metal rubber elastomer having a cavity structure and a polymer material polyurethane, and filling the polyurethane into the pores and cavities of the metal rubber elastomer by vacuum infiltration to form a polyurethane-metal rubber composite; The preparation method of the cavity structure in the metal rubber elastomer is as follows: a ring-shaped flat cylindrical blank is made of high-damping, strong-support, wear-resistant and reliable metal rubber; during the blank forming process, multiple hard hollow rubber tubes are arranged inside the blank; after the blank is stamped into a metal rubber blank, it is quenched within the high-temperature resistance range of the metal rubber to melt the hard hollow rubber tubes embedded inside; finally, it is cleaned and dried to obtain a metal rubber elastic part with a cavity structure.

2. The multi-airbag special explosion-proof tire based on composite metal rubber according to claim 1, characterized in that: The high-damping filler is a polymer material polyurethane with high wear resistance, high tensile tear strength, strong deformation recovery ability, low temperature resistance, UV resistance and long service life.

3. The multi-airbag special explosion-proof tire based on composite metal rubber according to claim 1, characterized in that: During the preparation of the cavity structure in the metal rubber elastomer, six hard hollow rubber tubes are arranged inside the blank. After the hard hollow rubber tubes embedded inside are melted away, ultrasonic cleaning is used for cleaning and electric blast drying is used for drying.

4. The multi-airbag special explosion-proof tire based on composite metal rubber according to claim 1, characterized in that: The airbags in the airbag groove include a large airbag (9) and a small airbag (8). An inflation port for inflation is left on the surface of the airbag. After the airbag is inflated, it is installed in the airbag groove between the rubber protective ring and the composite metal rubber. Each airbag is independently distributed in a horizontal row.

5. The multi-airbag special explosion-proof tire based on composite metal rubber according to claim 4, characterized in that: The large airbags and small airbags are both annular airbags, with two of each set to two. The two large airbags are adjacent to each other, and the two small airbags are separately arranged on both sides of the large airbag distribution area to form a protective support structure for the tire. If the tire is punctured by an external object and causes the small airbag to rupture, the tire uses the large airbag to ensure that the overall air pressure and center of gravity of the tire remain relatively stable, thereby maintaining stable operation of the tire over a long distance.

6. The multi-airbag special explosion-proof tire based on composite metal rubber according to claim 1, characterized in that: The porous composite metal rubber structure further includes a metal rubber side wing (7) adhered to the tire carcass rubber side wall, the metal rubber side wing being used to enhance the explosion-proof and impact-resistant capabilities of the tire side wall; An outer tire pattern (1) is provided at the outer edge area of ​​the tire body.

7. The multi-airbag special explosion-proof tire based on composite metal rubber according to claim 1, characterized in that: An annular wheel hub (5) is provided in the middle area of ​​the tire, and a wheel hub steel ring (6) is provided on the inner edge of the wheel hub.

8. The multi-airbag special explosion-proof tire based on composite metal rubber according to claim 7, characterized in that: The rubber protective ring is an annular structure made of silicone rubber material. Its inner edge area is tightly connected to the outer ring of the wheel hub, and the outer edge area is provided with a groove for placing the airbag. The groove forms a positioning structure for the airbag and a protective structure for the airbag.

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