An air-free explosion-proof tire based on rapid prototyping technology

Abstract

The present invention relates to an inflation-free explosion-proof tire based on rapid prototyping technology, wherein the tire comprises a carcass, wherein a plurality of air pockets arranged at intervals are arranged in the carcass; the air pockets are sequentially arranged along the circumference of the tire, and are arranged in a "one"-shaped multi-layer arrangement in the axial direction of the carcass; the air pockets are solidified and formed by rapid prototyping technology in a high-pressure inert gas atmosphere, and the air pockets are filled with high-pressure inert gas during forming. The tire of the present invention has excellent damping characteristics, inflation-free, low noise, and explosion-proof performance, greatly reduces the risk of tire blowout, maximizes the safety of personnel and vehicles, and has strong versatility and designability.

Description

Technical Field

[0001] The invention relates to a explosion-proof tire, in particular to an inflation-free explosion-proof tire based on rapid prototyping technology. Background Art

[0002] Automobile is a commonly used means of transportation. With the deepening of economic globalization, the demand for road transportation has grown strongly and is becoming increasingly busy. The high-speed operation of vehicles has brought great convenience to people and created huge wealth for society. As an important component of the automobile driving system, the tire is mounted on the rim and is the only part of the car that is directly in contact with the ground. During the driving process of the car, the tire mainly supports the whole vehicle, mitigates and partially absorbs the impact and vibration of the car during driving, ensures good adhesion between the wheel and the ground, and enables the car to have good traction performance, braking performance and passing performance. In addition, it also has a very important impact on the handling stability of the car.

[0003] During the driving process, tires are susceptible to various mechanical, electrical, physical, and chemical pressures, and are affected by various factors such as roads and natural environment, which may cause tire failures such as tire blowouts. According to the statistics of traffic accidents in recent years by the transportation department, 46% of traffic accidents on highways are related to tires, and accidents caused by tire blowouts account for 70% of tire-related accidents (Cao Xingju. Causes and prevention measures of tire blowouts on highways. Transportation Science and Technology and Economy,

[0004] 2008,2:56-57.). At present, the risk of tire blowout has become the focus of people's attention, and it is urgent to solve the problem of tire blowout to increase the safety of vehicle driving.

[0005] In addition to safety, tire noise during driving (mainly including tire structure vibration noise and air-related aerodynamic noise, accounting for more than 30% of the total vehicle noise) and the damping characteristics of contact with the ground also directly affect the driving experience and riding comfort of the car (Zhang Chaojuan. Current Status and Prevention of Urban Traffic Noise Pollution. Technology and Market, 2014, 21(9): 325.).

[0006] At present, some vehicles are equipped with explosion-proof tires to improve the safety of the vehicles. The explosion-proof tires used are, for example, an explosion-proof safety tire with an invention patent with application number 201220233722.8. The patent sets a balloon spacer between the carcass and the tire bead, and the balloon spacer is provided with a plurality of spaced air cavities, and each air cavity is provided with a valve connected thereto. The disadvantage of the patent is that the radial chambers set along the tire can only maintain one layer, which limits the designability. In addition, each air chamber is provided with a valve, which has high manufacturing costs and complicated and time-consuming inflation operations. The invention patent with application number 02248106.0 is a multi-chamber damping explosion-proof tire. The patent divides the interior of the tire into more than 6 chambers, and each chamber is connected by an annular high-pressure hose passing therethrough, and the annular high-pressure hose is connected to the valve to achieve the explosion-proof function of the tire. However, the radial chambers arranged along the tire of this patent can only maintain one layer, which limits the freedom of designing the damping characteristics of the tire. In addition, an annular hose needs to be laid inside the tire, the production process is complicated, the manufacturing cost is relatively high, and the tire also needs to be inflated. Summary of the invention

[0007] In order to solve the above-mentioned technical problems existing in existing tires, the present invention provides an air-free explosion-proof tire based on rapid prototyping technology. The present invention uses rapid prototyping technology (such as 3D printing technology, etc.) to set a number of "air pockets" in the tire, so that the tire has excellent damping characteristics, no inflation, low noise, and explosion-proof performance.

[0008] To achieve the above object, the present invention provides the following technical solutions:

[0009] A non-inflation explosion-proof tire based on rapid prototyping technology, characterized in that the tire includes a carcass, wherein a plurality of air pockets arranged at intervals are provided in the carcass; the air pockets are arranged in sequence along the circumference of the tire, and are arranged in multiple layers in an "I" shape in the axial direction of the carcass; the air pockets are solidified and formed by rapid prototyping technology in a high-pressure inert gas atmosphere, and the air pockets are filled with high-pressure inert gas during forming.

[0010] Further, a plurality of the air pockets are separated by solid walls.

[0011] Furthermore, the number and shape of the air pockets are comprehensively optimized and designed according to the damping requirements of the tire in different application scenarios.

[0012] Furthermore, the air pocket is in a shape of a hexagon, a triangle or a rectangle.

[0013] Furthermore, the plurality of air pockets in the tire body are composed of air pockets of various shapes.

[0014] Furthermore, the cavitation is printed and formed by a forming device in a high-pressure inert gas atmosphere.

[0015] Furthermore, the molding equipment includes a purification system and a working sealed box. After the purification system purifies the inert gas, the inert gas forms a preset high-pressure inert gas atmosphere in the working sealed box, and the powder of the material to be printed is stacked and formed in a preset form in the working sealed box to form the air pockets.

[0016] Furthermore, the molding equipment also includes an inert gas transition chamber, and the purification system is connected to the working sealing box through the inert gas transition chamber.

[0017] Furthermore, the molding equipment also includes a curing molding sealing box. After the tire is printed in the working sealing box, it is sent to the curing molding sealing box. Corresponding temperature and pressure are set in the curing molding sealing box to accelerate the curing molding of the tire.

[0018] Furthermore, the molding equipment also includes a powder feeder and a printer bed; the powder feeder is connected to the printer bed and is used to convey powder of the material to be printed to the printer bed; the printer bed is arranged in the working sealed box, and the printer bed controls the nozzle to print the cavitation.

[0019] Beneficial effects of the present invention:

[0020] The tire of the present invention is provided with multiple layers of air pockets in the tire body based on the rapid prototyping technology, so that the tire becomes an inflation-free, low-noise explosion-proof tire with excellent damping characteristics. The air pockets are directly filled with high-pressure inert gas and rapidly formed in a high-pressure inert gas atmosphere, thereby realizing that the tire does not need to be inflated. When a certain proportion of the air pockets are punctured during driving, other air pockets will not be affected, and tire blowout and serious overall tire leakage will not occur, thereby ensuring the safety of personnel and vehicles to the greatest extent. The number, shape and layout of the air pockets in the tire can be parameterized according to the design requirements of damping and noise in different application scenarios of the tire, and the tire has strong versatility and designability. The tire molding equipment is provided with a mutually independent working sealing box and a curing molding sealing box, thereby greatly improving the production efficiency of the tire. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 A schematic diagram of an air-free explosion-proof tire based on rapid prototyping technology of the present invention;

[0022] Figure 2 This is a schematic diagram of the design of the "air cavity" shape of the inflation-free explosion-proof tire of the present invention;

[0023] Figure 3 This is a schematic diagram of the design of the number of "air pockets" of the inflation-free explosion-proof tire of the present invention;

[0024] Figure 4 This is a schematic diagram of the "air pocket" combination design of the inflation-free explosion-proof tire of the present invention;

[0025] Figure 5 This is a schematic diagram of the airless tire rapid printing device of the present invention.

[0026] Among them: 1. rim, 2. air cavity, 3. solid wall, 4. powder feeder, 5. purification system, 6. control cabinet, 7. printer bed, 8. working sealing box, 9. inert gas transition cabin, 10. curing molding sealing box. DETAILED DESCRIPTION

[0027] The specific implementation of the present invention is further described in detail below in conjunction with the accompanying drawings and examples. The following examples are only used to illustrate the present invention, but are not intended to limit the scope of the present invention.

[0028] The terms such as upper, lower, left, right, inside, outside, front end, rear end, head, tail, etc. in this application document are based on the positions or positions shown in the drawings. If the drawings are different, the corresponding positions may also change accordingly, so they cannot be understood as limiting the scope of protection.

[0029] In the present invention, the terms "install", "connected", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, an integral connection, a mechanical connection, an electrical connection or mutual communication, a direct connection or an indirect connection through an intermediate medium, the internal connection of two components, or the interaction relationship between two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0030] This embodiment describes an inflation-free explosion-proof tire based on rapid prototyping technology. The tire is rapidly formed in a high-pressure inert gas atmosphere by means of rapid prototyping technology (such as 3D printing technology).

[0031] like Figure 1 As shown, the tire is mounted on the rim 1. The tire is mainly composed of a carcass, in which a plurality of air pockets 2 separated by solid walls 3 are arranged. The air pockets 2 are arranged in sequence along the circumference of the tire (i.e., in the direction around the rim 1) and are arranged in multiple layers in a straight line in the axial direction of the carcass.

[0032] The number and shape of the air pockets 2 can be comprehensively optimized from multiple perspectives such as reducing noise and vibration according to the damping requirements of the tire in different applications. Figure 2 to Figure 4 As shown, the air cavity 2 can be in the shape of a hexagon, a triangle, a rectangle (including but not limited to the above three forms), or for some special applications, air cavities 2 of different shapes can be combined and designed according to actual needs to meet the use requirements.

[0033] When a vehicle using the explosion-proof tire of this embodiment is driving, when one or more air pockets 2 are punctured, other air pockets 2 are not affected, and a tire blowout or serious air leakage of the entire tire will not occur, thereby ensuring the safety of people and vehicles to the greatest extent. The multi-layered air pockets 2 give the tire excellent damping characteristics, with low noise and good vibration reduction performance during driving.

[0034] The air cavity 2 inside the tire carcass of the present embodiment is solidified and formed by a molding device in a high-pressure inert gas atmosphere through rapid molding technology (such as 3D printing technology, etc.). Figure 5 As shown, the molding equipment includes a powder feeder 4, a purification system 5, a control cabinet 6, a printer bed 7, a working sealed box 8, an inert gas transition chamber 9 and a curing molding sealed box 10. The powder feeder 4 is connected to the printer bed 7 to convey the powder of the material to be printed to the nozzle controlled by the printer bed 7. The printer bed 7 is arranged in the working sealed box 8 to print the air cavity 2 inside the tire body. The purification system 5 is connected to the working sealed box 8 through the inert gas transition chamber 9 to provide the working sealed box 8 with purified high-pressure gas. The inert gas transition chamber 9 is used to buffer and store gas to ensure that the pressure in the working sealed box 8 can be stabilized within the required range during the molding process. The curing molding sealed box 10 is connected to the working sealed box 8 through a conveying device for curing the workpiece after printing. The control module in the control cabinet 6 is respectively connected to the powder feeder 4, the purification system 5, the printer bed 7, the working sealed box 8, the inert gas transition chamber 9, the curing molding sealed box 10, and the conveying device to control the actions of each component.

[0035] The external gas source sends the inert gas to the purification system 5 for purification to prevent impurities in the gas from affecting the quality of the workpiece. The inert gas purified by the purification system 5 is sent to the working sealed box 8 through the inert gas transition cabin 9 to form a high-pressure (such as 240kPa) inert gas atmosphere according to the tire pressure requirement. The pressure in the working sealed box 8 can be set and adjusted by the control cabinet 6 according to the use requirements. The printer bed 7 controls the nozzle to spray the powder of the material to be printed delivered by the powder feeder 4 in the high-pressure inert gas atmosphere according to the control program of the control cabinet 6, and accumulates and forms in the working sealed box 8. After forming, the air cavity 2 is filled with high-pressure inert gas, thereby realizing tire inflation-free.

[0036] During the printing process, a portion of the inert gas can be stored in the inert gas transition chamber 9. When the air pressure in the working sealed box 8 drops, the gas in the inert gas transition chamber 9 can be replenished first to avoid frequent activation of the purification system 5. In addition, if the air pressure in the working sealed box 8 needs to be reduced, the excess gas can also be stored in the inert gas transition chamber 9 to avoid waste of inert gas.

[0037] In order to improve the production efficiency of tire workpieces, after the workpieces are printed, they are transferred from the working sealing box 8 to the curing and molding sealing box 10 by the conveying device, and reasonable process parameters such as temperature and pressure are set in the curing and molding sealing box 10 to accelerate the curing and molding of the workpieces. The working sealing box 8 and the curing and molding sealing box 10 are independently set in the molding equipment, which greatly improves the production efficiency of the tires in this embodiment.

[0038] This embodiment realizes tire molding in a high-pressure inert gas atmosphere. During actual use, the tire does not need to be inflated, which is convenient to use. In addition, the number, shape, and layout parameters of the air cavity 2 can be combined to reduce the risk of tire blowout during high-speed operation of the vehicle, and on the other hand, the shock absorption and noise reduction of the tire can be achieved, greatly improving the overall performance of the tire.

[0039] Although the principles of the present invention are described in detail above in conjunction with the preferred embodiments of the present invention, those skilled in the art should understand that the above embodiments are merely explanations of the exemplary implementations of the present invention, and are not intended to limit the scope of the present invention. The details in the embodiments do not constitute limitations on the scope of the present invention, and any obvious changes such as equivalent transformations, simple replacements, etc. based on the technical solution of the present invention, without departing from the spirit and scope of the present invention, fall within the protection scope of the present invention.

Claims

1. A non-inflation explosion-proof tire based on rapid prototyping technology, characterized in that: The tire comprises a carcass, wherein a plurality of air pockets (2) are arranged at intervals in the carcass; the air pockets (2) are arranged in sequence along the circumference of the tire and are arranged in multiple layers in a straight line in the axial direction of the carcass; the air pockets (2) are solidified and formed by a molding device in a high-pressure inert gas atmosphere by a rapid molding technology, and the air pockets (2) are filled with high-pressure inert gas during molding; The molding equipment comprises a purification system (5), a working sealed box (8), an inert gas transition chamber (9) and a curing and molding sealed box (10); the purification system (5) is connected to the working sealed box (8) through the inert gas transition chamber (9); after the purification system (5) purifies the inert gas, the inert gas forms a preset high-pressure inert gas atmosphere in the working sealed box (8), and the powder of the material to be printed is accumulated and molded in a preset form in the working sealed box (8) to form the air cavity (2); after the tire is printed in the working sealed box (8), it is sent to the curing and molding sealed box (10), and corresponding temperature and pressure are set in the curing and molding sealed box (10) to accelerate the curing and molding of the tire.

2. The air-free explosion-proof tire based on rapid prototyping technology according to claim 1, characterized in that: The plurality of air pockets (2) are separated by solid walls (3).

3. The air-free explosion-proof tire based on rapid prototyping technology according to claim 1, characterized in that: The number and shape of the air pockets (2) are comprehensively optimized and designed according to the damping requirements of the tire in different application scenarios.

4. The air-free explosion-proof tire based on rapid prototyping technology according to claim 3, characterized in that: The shape of the air cavity (2) is hexagonal, triangular or rectangular.

5. The air-free explosion-proof tire based on rapid prototyping technology according to claim 3, characterized in that: The plurality of air pockets (2) in the tire body are formed by combining air pockets (2) of various shapes.

6. The air-free explosion-proof tire based on rapid prototyping technology according to claim 1, characterized in that: The molding device further comprises a powder feeder (4) and a printer bed (7); the powder feeder (4) is connected to the printer bed (7) and is used to feed powder of a material to be printed to the printer bed (7); the printer bed (7) is arranged in the working sealed box (8), and the printer bed (7) controls a nozzle to print the air cavity (2).

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