CN112895540A - Preparation and process of self-repairing safety tire - Google Patents
Preparation and process of self-repairing safety tire Download PDFInfo
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- CN112895540A CN112895540A CN202110039201.2A CN202110039201A CN112895540A CN 112895540 A CN112895540 A CN 112895540A CN 202110039201 A CN202110039201 A CN 202110039201A CN 112895540 A CN112895540 A CN 112895540A
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29D—PRODUCING PARTICULAR ARTICLES FROM PLASTICS OR FROM SUBSTANCES IN A PLASTIC STATE
- B29D30/00—Producing pneumatic or solid tyres or parts thereof
- B29D30/06—Pneumatic tyres or parts thereof (e.g. produced by casting, moulding, compression moulding, injection moulding, centrifugal casting)
- B29D30/0681—Parts of pneumatic tyres; accessories, auxiliary operations
- B29D30/0685—Incorporating auto-repairing or self-sealing arrangements or agents on or into tyres
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29D—PRODUCING PARTICULAR ARTICLES FROM PLASTICS OR FROM SUBSTANCES IN A PLASTIC STATE
- B29D30/00—Producing pneumatic or solid tyres or parts thereof
- B29D30/06—Pneumatic tyres or parts thereof (e.g. produced by casting, moulding, compression moulding, injection moulding, centrifugal casting)
- B29D30/08—Building tyres
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29D—PRODUCING PARTICULAR ARTICLES FROM PLASTICS OR FROM SUBSTANCES IN A PLASTIC STATE
- B29D30/00—Producing pneumatic or solid tyres or parts thereof
- B29D30/06—Pneumatic tyres or parts thereof (e.g. produced by casting, moulding, compression moulding, injection moulding, centrifugal casting)
- B29D30/0681—Parts of pneumatic tyres; accessories, auxiliary operations
- B29D30/0685—Incorporating auto-repairing or self-sealing arrangements or agents on or into tyres
- B29D2030/0686—Incorporating sealants on or into tyres not otherwise provided for; auxiliary operations therefore, e.g. preparation of the tyre
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/80—Technologies aiming to reduce greenhouse gasses emissions common to all road transportation technologies
- Y02T10/86—Optimisation of rolling resistance, e.g. weight reduction
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Abstract
The invention belongs to the technical field of tire preparation, in particular to a preparation and process of a self-repairing safety tire, wherein the tire comprises a hub and a tire body, the hub is provided with a self-repairing device, the self-repairing device comprises a rotating ring, the side wall of the rotating ring is connected with a sliding cavity, the inside of the sliding cavity is connected with a sliding plate in a sliding way, the inner end of the sliding plate is provided with an electromagnet, the outer end of the sliding plate is provided with a repairing cavity, the inside of the repairing cavity is provided with an electric spraying box, repairing glue is stored in the electric spraying box, the side wall of the repairing cavity is provided with a discharge chute, the side wall of the repairing cavity is provided with an inclined nozzle, and the outer end of; according to the invention, the self-repairing device is arranged in the tire, so that the fixed point and efficient repair can be realized when foreign matters are punctured into the tire body, the tire is airtight, the tire burst condition can be reduced, and the use quality and the service life of the tire are improved.
Description
Technical Field
The invention belongs to the technical field of tire preparation, and particularly relates to a preparation method and a process of a self-repairing safety tire.
Background
The market of the current tire industry is large, and the competition is also large. People in the tire industry are constantly seeking new ways, such as self-repairing safety tires, wherein a layer of special coating rubber material is arranged inside a general self-repairing tire. When the tire is punctured, the inner viscous material can wrap the punctured object to prevent air leakage, and when the punctured object is pulled out, the rubber material can fill the formed gap instantly, so that the automatic repairing function is realized, meanwhile, in order to improve the safety of the tire, a large amount of rubber material needs to be filled into the tire in the mode, and meanwhile, the performance of the rubber material stored in the tire can also change along with the change of the temperature of the tire, so that the self-repairing effect and the stability of the tire during repair are influenced.
In view of the above, the invention provides a preparation and process of a self-repairing safety tire, wherein the self-repairing device is arranged in the tire, so that the inner part of the tire body can be repaired at a fixed point and at high efficiency when a foreign matter is pricked, some sharp objects such as screws are fixed in the tire without air leakage and without air leakage when being pulled out, the tire is not required to be repaired, meanwhile, the tire burst condition can be reduced, and the service quality and the service life of the tire are further improved.
Disclosure of Invention
In order to make up for the defects of the prior art, the invention provides a preparation method and a process of a self-repairing safety tire, wherein the self-repairing device is arranged in the tire, so that the fixed point and efficient repair can be realized when foreign matters are pricked in the tire body, some sharp objects such as screws are pricked in the tire body, air is not leaked when the sharp objects are pulled out, the tire repair is not needed any more, the tire burst condition can be reduced, and the service quality and the service life of the tire are further improved.
The technical scheme adopted by the invention for solving the technical problems is as follows: a self-repairing safety tire is composed of a hub and a tire body, wherein the tire body sequentially comprises the following components from outside to inside: the tire tread comprises a tread rubber, a cord fabric layer, a steel wire layer, a transition layer, a buffer layer, an A substrate sheet, a PET film, a B substrate sheet and a C substrate sheet;
wherein the substrate A consists of the following raw materials in parts by weight:
8-10 parts of brominated butyl rubber, 6-8 parts of elastomer, 2-3 parts of softener, 4-6 parts of resin, 2-3 parts of filler antioxidant and 4-5 parts of vulcanizing agent;
the B substrate sheet is composed of the following raw materials in parts by weight:
8-10 parts of natural rubber, 8-10 parts of butyl rubber, 4-6 parts of elastomer, 2-3 parts of softener, 3-4 parts of resin, 2-4 parts of filler and 1-2 parts of antioxidant;
the C substrate sheet is composed of the following raw materials in parts by weight:
8-10 parts of elastomer, 4-5 parts of softener, 5-6 parts of resin, 3-4 parts of filler and 1-2 parts of antioxidant.
A preparation process of a self-repairing safety tire is suitable for the tire and comprises the following steps:
s1: firstly, mixing the substrate sheet A and the substrate sheet B by a reaction kettle kneader according to a formula respectively, extruding by a screw extruder to form a substrate sheet A and a substrate sheet B which have the thickness of 1-2mm and the width equal to the width of a tire, and clamping a PET film between the substrate sheet A and the substrate sheet B to form a combination of the substrate sheet A, the PET film and the substrate sheet B, wherein the upper surface and the lower surface of the combination are covered by release paper;
s2: then, on a forming machine, firstly, bottoming the base material C on a rotary drum, then sequentially attaching a base material sheet A, a PET film and a base material sheet B assembly, repeating the steps for three times, attaching three layers, and then sequentially attaching a buffer layer, a transition layer, a steel wire layer, a cord fabric layer and tread rubber;
s3: then, the tread rubber, the transition layer, the buffer layer and the substrate sheet A are subjected to a vulcanization reaction under the conditions of high temperature and high pressure of a vulcanizing machine, and a required tire body is formed; the PET film can be effectively degraded under the action of high temperature during vulcanization, and the arrangement of the PET film can effectively reduce the condition that the combination of the substrate sheet A and the substrate sheet B is subjected to tensile deformation in the tire forming link;
s4: and then installing a self-repairing device on the hub in advance before assembling the tire body and the hub, and forming the required self-repairing tire.
Wherein the self-repairing device used in S4 comprises a rotating ring rotationally connected with the side wall of a wheel hub, the outer side wall of the rotating ring is connected with a group of annular uniformly distributed and pairwise symmetrical sliding cavities, the sliding cavities are connected with sliding plates in a sliding manner, springs are connected between the sliding plates and the inner ends of the sliding cavities, electromagnets are installed at the inner ends of the sliding plates, a repairing cavity with a circular cross section is arranged at the outer end of each sliding plate, a limiting plate is connected with the side wall of each sliding plate, a limiting groove matched with the limiting plate is formed in the inner wall of each sliding cavity, an electric material spraying box is installed in each repairing cavity, repairing glue is stored in each electric material spraying box, a group of annularly and uniformly distributed discharge grooves are arranged in the side wall of each repairing cavity, the inner ends of the discharge grooves are respectively communicated with the inner parts of the electric material spraying boxes, and inclined nozzles are, the outer end of the sliding plate is connected with an annular magnetic iron; when the repairing device works, when metal foreign matters which can be adsorbed by the magnet are pricked into the tire body, the magnetic iron can attract the end part of the metal foreign matters and drive the rotating ring to rotate around the wheel hub, so that the repairing cavity can be aligned with the end part of the metal foreign matters under the drive of the rotating ring, then the electromagnet works and generates larger adsorption force with the end part of the metal foreign matters, so that the sliding plate can slide towards the outer end of the sliding cavity and drive the repairing cavity to cover the end part of the foreign matters, then the electric spray box presses out the repairing glue inside, and the repairing glue is sprayed to the position where the tire body is pricked by the metal foreign matters from the nozzle through the discharge chute, so that the fixed point and efficient repairing can be realized when the foreign matters are pricked into the tire body, and sharp objects such as the pinning screws are not leaked when the sharp objects are inserted into the tire body, and the tire is not leaked when the sharp objects are pulled out, the tire is not needed any more, further improving the service quality and the service life of the tire.
Preferably, the cross sections of the sliding cavity and the limiting plate are respectively annular, the outer end of the side wall of the sliding plate is provided with a power block communicated with the discharge chute, the side wall of the power block is provided with a spray head tangent to the side wall of the sliding plate, and the bottom end of the sliding plate is rotatably connected with a bottom plate; when the repair glue extruding device works, when the repair glue inside the electric spray box is extruded, part of the repair glue can be sprayed out from the spray head and tangent to the side wall of the sliding plate, so that the repair glue can exert rotating acting force on the sliding plate in the spraying process, and the sliding plate can drive the nozzle to spray glue at the damaged position of the tire body when rotating relative to the bottom plate, so that the repair quality of the self-repair device to the tire body is further improved.
Preferably, a balance plate matched with the self-repairing device is arranged on the corresponding side wall of the rotating ring between every two adjacent sliding cavities; during operation, because the selfreparing device of annular equipartition is equipped with on the change, make the ascending quality of wheel hub all directions have the difference to influence wheel hub's balanced effect, through set up the balance plate on the change this moment, make the quality of each position department on the wheel hub more unanimous, prevent that each position of wheel hub from influencing the condition of tire dynamic balance because of the effort difference that receives is great.
Preferably, a group of elastic membranes which are uniformly distributed and mutually attached are connected to the inner wall of the tire body, and a closed blocking cavity is formed between the elastic membranes and the inner wall of the tire body; the during operation, when the matrix is punctured to the metallic foreign matter and when puncturing the elastic membrane, the laminating compresses tightly the lateral wall department at the metallic foreign matter tip under the effect of the inside and outside atmospheric pressure of matrix this moment elastic membrane to make the elastic membrane can carry out preliminary shutoff to the position department that metallic foreign matter and matrix body handing-over, prevent the condition that the inside gas of matrix is followed the position department outflow of matrix by puncturing, carry out the selfreparing through the position department that self-repairing device was punctured to the matrix afterwards, reduce the condition that the tire takes place the gas leakage after impaired.
Preferably, a group of magnetic balls are respectively arranged in the plugging cavity, the magnetic poles of the magnetic balls and the magnetic iron at the ends close to each other are the same, and the electromagnet can attract the magnetic balls when working; the during operation, when pricking the foreign matter in the matrix and can't attract mutually with magnetic iron, this moment because the foreign matter can be with the magnetic ball top to both sides that shutoff intracavity portion stored, make the repulsion force between the region that foreign matter department corresponds relatively weaker with magnetic iron, thereby make magnetic iron move to foreign matter department under the repulsion force of magnetic ball, the electro-magnet work afterwards drives the slide and slides to foreign matter department, make the repair chamber can effectual cover in foreign matter department and spout gluey processing, thereby make the tire homoenergetic obtain effectual restoration when receiving the damage of different foreign matters.
Preferably, one side of the magnetic ball close to the hub is fixedly connected with the surface of the elastic membrane; the during operation, rotate under the effect of foreign matter in order to reduce the magnetic ball, thereby influence the condition of magnetic ball and magnetic iron interact, link firmly with the elastic membrane through the one side that is close to wheel hub with the magnetic ball this moment, make the rotation of magnetic ball obtain effectual restriction, thereby make one side that the magnetic ball is close to wheel hub can be invariable repel mutually with the magnetic iron, prevent the condition that the magnetic ball became invalid because of external interference work, simultaneously when the foreign matter backs up two magnetic balls, the magnetic ball of keeping away from each other this moment can drive the elastic membrane and strain, thereby make the foreign matter can with taut elastic membrane quick contact and puncture, the result of use of elastic membrane has further been improved.
Preferably, slots are respectively formed in the ends, close to each other, of the two adjacent magnetic balls, and an insertion rod is inserted between the two adjacent slots; during operation, through setting up sliding connection's inserted bar and slot between two adjacent magnetic balls for two magnetic balls can carry out relative motion through the slip of inserted bar in the slot when being backed down by the foreign matter, and the inserted bar also can play further restriction effect to magnetic ball's rotation simultaneously, prevents that magnetic ball from taking place the condition of deflecting at the in-process of motion, has further improved magnetic ball stability and validity at the during operation.
The invention has the following beneficial effects:
1. according to the tire self-repairing device, the self-repairing device is arranged in the tire, so that the fixed point and efficient repair can be realized when foreign matters are pricked in the tire body, air leakage does not occur when some sharp objects such as screws are pricked in the tire, air leakage does not occur when the sharp objects are pulled out, tire repair for the tire is not needed, the tire burst condition can be reduced, and the use quality and the service life of the tire are further improved.
2. According to the invention, the balance plate is arranged on the rotating ring, so that the quality of each position on the wheel hub is more consistent, the condition that the dynamic balance of the tire is influenced due to larger difference of acting force of each position of the wheel hub is prevented, and the stability and the safety of the tire in use are greatly improved.
Drawings
The invention will be further explained with reference to the drawings.
FIG. 1 is a diagram of the process steps of the present invention;
FIG. 2 is a schematic perspective view of the present invention;
FIG. 3 is a schematic structural view of the present invention;
FIG. 4 is an enlarged view at A in FIG. 3;
FIG. 5 is a perspective view of the slide plate of the present invention;
in the figure: the self-repairing device comprises a hub 1, a tire body 2, a self-repairing device 3, a rotating ring 4, a sliding cavity 5, a sliding plate 6, a spring 7, an electromagnet 8, a repairing cavity 9, a limiting plate 10, a limiting groove 11, an electric spray box 12, a discharge groove 13, a nozzle 14, a power block 15, a spray head 16, a bottom plate 17, a balance plate 18, an elastic membrane 19, a plugging cavity 20, a magnetic ball 21, a slot 22, an inserted rod 23 and magnetic iron 24.
Detailed Description
In order to make the technical means, the creation features, the achievement purposes and the effects of the invention easy to understand, the invention is further described with the following embodiments.
As shown in fig. 1-5, the self-repairing safety tire of the present invention comprises a hub 1 and a tire body 2, wherein the tire body 2 comprises, from outside to inside: the tire tread comprises a tread rubber, a cord fabric layer, a steel wire layer, a transition layer, a buffer layer, an A substrate sheet, a PET film, a B substrate sheet and a C substrate sheet;
wherein the substrate A consists of the following raw materials in parts by weight:
8-10 parts of brominated butyl rubber, 6-8 parts of elastomer, 2-3 parts of softener, 4-6 parts of resin, 2-3 parts of filler antioxidant and 4-5 parts of vulcanizing agent;
the B substrate sheet is composed of the following raw materials in parts by weight:
8-10 parts of natural rubber, 8-10 parts of butyl rubber, 4-6 parts of elastomer, 2-3 parts of softener, 3-4 parts of resin, 2-4 parts of filler and 1-2 parts of antioxidant;
the C substrate sheet is composed of the following raw materials in parts by weight:
8-10 parts of elastomer, 4-5 parts of softener, 5-6 parts of resin, 3-4 parts of filler and 1-2 parts of antioxidant.
A preparation process of a self-repairing safety tire is suitable for the tire and comprises the following steps:
s1: firstly, mixing the substrate sheet A and the substrate sheet B by a reaction kettle kneader according to a formula respectively, extruding by a screw extruder to form a substrate sheet A and a substrate sheet B which have the thickness of 1-2mm and the width equal to the width of a tire, and clamping a PET film between the substrate sheet A and the substrate sheet B to form a combination of the substrate sheet A, the PET film and the substrate sheet B, wherein the upper surface and the lower surface of the combination are covered by release paper;
s2: then, on a forming machine, firstly, bottoming the base material C on a rotary drum, then sequentially attaching a base material sheet A, a PET film and a base material sheet B assembly, repeating the steps for three times, attaching three layers, and then sequentially attaching a buffer layer, a transition layer, a steel wire layer, a cord fabric layer and tread rubber;
s3: then, the tread rubber, the transition layer, the buffer layer and the substrate sheet A are subjected to a vulcanization reaction under the conditions of high temperature and high pressure of a vulcanizing machine, and a required tire body 2 is formed; the PET film can be effectively degraded under the action of high temperature during vulcanization, and the arrangement of the PET film can effectively reduce the condition that the combination of the substrate sheet A and the substrate sheet B is subjected to tensile deformation in the tire forming link;
s4: then, before the tire body 2 is assembled with the wheel hub 1, a self-repairing device 3 is mounted on the wheel hub 1 in advance, and a required self-repairing tire is formed;
the self-repairing device 3 used in the S4 comprises a rotating ring 4 rotationally connected with the side wall of a hub 1, the outer side wall of the rotating ring 4 is connected with a group of annular uniformly-distributed sliding cavities 5 which are symmetrical in pairs, sliding plates 6 are connected inside the sliding cavities 5 in a sliding mode, springs 7 are connected between the sliding plates 6 and the inner ends of the sliding cavities 5, electromagnets 8 are installed at the inner ends of the sliding plates 6, a repairing cavity 9 with a circular cross section is formed at the outer end of each sliding plate 6, limiting plates 10 are connected onto the side wall of each sliding plate 6, limiting grooves 11 matched with the limiting plates 10 are formed in the inner walls of the sliding cavities 5, electric spray boxes 12 are installed inside the repairing cavities 9, repairing glue is stored inside the electric spray boxes 12, a group of annular uniformly-distributed discharge grooves 13 are formed in the side wall of each repairing cavity 9, and the inner ends of the discharge grooves 13 are respectively, inclined nozzles 14 are arranged on the side walls of the repair cavities 9 corresponding to the outer ends of the discharge chutes 13, and annular magnetic irons 24 are connected to the outer ends of the sliding plates 6; when the repairing device works, when a metal foreign body which can be adsorbed by a magnet is pricked into the tire body 2, the magnetic iron 24 can attract the end part of the metal foreign body and drive the rotating ring 4 to rotate around the wheel hub 1, so that the repairing cavity 9 can be aligned with the end part of the metal foreign body under the drive of the rotating ring 4, then the electromagnet 8 works and generates larger adsorption force with the end part of the metal foreign body, so that the sliding plate 6 can slide towards the outer end of the sliding cavity 5 and drive the repairing cavity 9 to cover the end part of the foreign body, then the electric spray box 12 presses out the repairing glue inside, and the repairing glue is sprayed from the nozzle 14 to the position where the tire body 2 is pricked by the metal foreign body through the discharge groove 13, so that the fixed point and efficient repairing can be realized when the foreign body is pricked into the tire body 2, and some sharp objects such as screws are pricked into the tire body and are not leaked when being pulled out, the tire is not required to be repaired, the tire burst condition can be reduced, and the use quality and the service life of the tire are further improved.
As an embodiment of the invention, the cross-sectional shapes of the sliding cavity 5 and the limiting plate 10 are respectively annular, the outer end of the side wall of the sliding plate 6 is provided with a power block 15 communicated with the discharge chute 13, the side wall of the power block 15 is provided with a spray head 16 tangential to the side wall of the sliding plate 6, and the bottom end of the sliding plate 6 is rotatably connected with a bottom plate 17; when the repair glue spraying device works, when the electric spray box 12 extrudes the repair glue inside, part of the repair glue can be sprayed out from the spray head 16 and tangent to the side wall of the sliding plate 6, so that the repair glue can exert rotating acting force on the sliding plate 6 in the spraying process, the sliding plate 6 can drive the nozzle 14 to spray glue at the damaged position of the tire body 2 when rotating relative to the bottom plate 17, and the repair quality of the self-repair device 3 to the tire body 2 is further improved.
As an embodiment of the invention, the side walls of the corresponding swivel 4 between two adjacent sliding cavities 5 are respectively provided with a balance plate 18 matched with the self-repairing device 3; during operation, because be equipped with the selfreparing device 3 of annular equipartition on the change 4 for there is the difference in the quality of 1 all directions of wheel hub, and influence wheel hub 1's balanced effect, through set up balance plate 18 on change 4 this moment, make the quality of each position department more unanimous on wheel hub 1, prevent that each position of wheel hub 1 is because of the great condition that influences tire dynamic balance of the effort difference that receives.
As an embodiment of the invention, a group of elastic membranes 19 which are uniformly distributed and mutually attached are connected on the inner wall of the tire body 2, and a closed blocking cavity 20 is formed between the elastic membranes 19 and the inner wall of the tire body 2; the during operation, when the metal foreign matter punctures matrix 2 and punctures elastic membrane 19, this moment elastic membrane 19 laminating compresses tightly the lateral wall department at the metal foreign matter tip under the effect of the inside and outside atmospheric pressure of matrix 2, thereby make elastic membrane 19 can carry out preliminary shutoff to the position department that metal foreign matter and matrix 2 handing-over mutually, prevent the condition that the inside gas of matrix 2 from the position department outflow of matrix 2 being punctured, carry out the selfreparing through selfreparing device 3 to the position department that matrix 2 was punctured afterwards, reduce the condition that the tire took place the gas leakage after impaired.
As an embodiment of the present invention, a set of magnetic balls 21 is respectively disposed inside the plugging chamber 20, the magnetic poles of the ends of the magnetic balls 21 close to the magnetic iron 24 are the same, and the electromagnet 8 can attract the magnetic balls 21 when in operation; during operation, when the foreign matter of pricking in matrix 2 can't attract mutually with magnetic iron 24, this moment because the foreign matter can be with the inside magnetic ball 21 top both sides that stores of shutoff chamber 20, make the repulsion force between the region that the foreign matter department corresponds and magnetic iron 24 relatively weaker, thereby make magnetic iron 24 move to foreign matter department under the repulsion force of magnetic ball 21, electro-magnet 8 work afterwards and drive slide 6 and slide to foreign matter department, make repair chamber 9 can effectual cover and carry out the spraying glue processing in foreign matter department, thereby make the tire homoenergetic obtain effectual restoration when receiving the damage of different foreign matters.
As an embodiment of the invention, one side of the magnetic ball 21 close to the hub 1 is fixedly connected with the surface of the elastic membrane 19; in operation, in order to reduce the magnetic ball 21 and take place to rotate under the effect of foreign matter, thereby influence the circumstances of magnetic ball 21 and magnetic iron 24 interact, link firmly with elastic membrane 19 through the one side that is close to wheel hub 1 with magnetic ball 21 this moment, make the rotation of magnetic ball 21 obtain effectual restriction, thereby make magnetic ball 21 be close to one side of wheel hub 1 can invariably repel with magnetic iron 24 mutually, prevent the magnetic ball 21 condition of the inefficacy of work because of external interference, simultaneously when the foreign matter backs up two magnetic balls 21, magnetic ball 21 that keep away from each other this moment can drive elastic membrane 19 and strain, thereby make the foreign matter can with taut elastic membrane 19 quick contact and puncture, further improved elastic membrane 19's result of use.
As an embodiment of the present invention, slots 22 are respectively formed at one end of each of two adjacent magnetic balls 21, which are close to each other, and an insertion rod 23 is inserted between the two adjacent slots 22; during operation, through setting up sliding connection's inserted bar 23 and slot 22 between two adjacent magnetic balls 21 for two magnetic balls 21 can carry out relative motion through the slip of inserted bar 23 in slot 22 when being backed up by the foreign matter, and inserted bar 23 also can play further restriction effect to the rotation of magnetic ball 21 simultaneously, prevents that magnetic ball 21 from taking place the circumstances of deflecting at the in-process of motion, has further improved magnetic ball 21 stability and validity at the during operation.
When the repairing device works, when a metal foreign body which can be adsorbed by a magnet is pricked into the tire body 2, the magnetic iron 24 can attract the end part of the metal foreign body and drive the rotating ring 4 to rotate around the wheel hub 1, so that the repairing cavity 9 can be aligned with the end part of the metal foreign body under the drive of the rotating ring 4, then the electromagnet 8 works and generates larger adsorption force with the end part of the metal foreign body, so that the sliding plate 6 can slide towards the outer end of the sliding cavity 5 and drive the repairing cavity 9 to cover the end part of the foreign body, then the electric spray box 12 presses out the repairing glue inside, and the repairing glue is sprayed from the nozzle 14 to the position where the tire body 2 is pricked by the metal foreign body through the discharge groove 13, so that the fixed point and efficient repairing can be realized when the foreign body is pricked into the tire body 2, and some sharp objects such as screws are pricked into the tire body and are not leaked when being pulled out, the tire is not required to be repaired, the tire burst condition can be reduced, and the use quality and the service life of the tire are further improved.
The foregoing illustrates and describes the principles, general features, and advantages of the present invention. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, which are given by way of illustration of the principles of the present invention, and that various changes and modifications may be made without departing from the spirit and scope of the invention as defined by the appended claims. The scope of the invention is defined by the appended claims and equivalents thereof.
Claims (8)
1. A tire with self-repairing safety is characterized in that: this tire comprises wheel hub (1) and matrix (2), matrix (2) outside-in is in proper order: the tire tread comprises a tread rubber, a cord fabric layer, a steel wire layer, a transition layer, a buffer layer, an A substrate sheet, a PET film, a B substrate sheet and a C substrate sheet;
wherein the substrate A consists of the following raw materials in parts by weight:
8-10 parts of brominated butyl rubber, 6-8 parts of elastomer, 2-3 parts of softener, 4-6 parts of resin, 2-3 parts of filler antioxidant and 4-5 parts of vulcanizing agent;
the B substrate sheet is composed of the following raw materials in parts by weight:
8-10 parts of natural rubber, 8-10 parts of butyl rubber, 4-6 parts of elastomer, 2-3 parts of softener, 3-4 parts of resin, 2-4 parts of filler and 1-2 parts of antioxidant;
the C substrate sheet is composed of the following raw materials in parts by weight:
8-10 parts of elastomer, 4-5 parts of softener, 5-6 parts of resin, 3-4 parts of filler and 1-2 parts of antioxidant.
2. A process for preparing a tire having self-healing safety, the process being suitable for use in the tire of claim 1, wherein: the process comprises the following steps:
s1: firstly, mixing the substrate sheet A and the substrate sheet B by a reaction kettle kneader according to a formula respectively, extruding by a screw extruder to form a substrate sheet A and a substrate sheet B which have the thickness of 1-2mm and the width equal to the width of a tire, and clamping a PET film between the substrate sheet A and the substrate sheet B to form a combination of the substrate sheet A, the PET film and the substrate sheet B, wherein the upper surface and the lower surface of the combination are covered by release paper;
s2: then, on a forming machine, firstly, bottoming the base material C on a rotary drum, then sequentially attaching a base material sheet A, a PET film and a base material sheet B assembly, repeating the steps for three times, attaching three layers, and then sequentially attaching a buffer layer, a transition layer, a steel wire layer, a cord fabric layer and tread rubber;
s3: then, the tread rubber, the transition layer, the buffer layer and the substrate sheet A are subjected to vulcanization reaction under the conditions of high temperature and high pressure of a vulcanizing machine, and a required tire body (2) is formed;
s4: then, a self-repairing device (3) is mounted on the hub (1) in advance before the tire body (2) and the hub (1) are assembled, and a required self-repairing tire is formed;
wherein the self-repairing device (3) used in S4 comprises a rotating ring (4) rotationally connected with the side wall of a hub (1), the outer side wall of the rotating ring (4) is connected with a group of sliding cavities (5) which are uniformly distributed in an annular shape and are symmetrical in pairs, the sliding cavities (5) are internally and slidably connected with sliding plates (6), springs (7) are connected between the sliding plates (6) and the inner ends of the sliding cavities (5), electromagnets (8) are installed at the inner ends of the sliding plates (6), a repairing cavity (9) with a circular cross section is formed at the outer end of the sliding plates (6), limiting plates (10) are connected onto the side wall of the sliding plates (6), limiting grooves (11) matched with the limiting plates (10) are formed in the inner wall of the sliding cavities (5), an electric material spraying box (12) is installed inside the repairing cavity (9), repairing glue is stored inside the electric material spraying box (12), and a group of discharge grooves (13) which are uniformly distributed in an annular, the inner of blown down tank (13) is linked together with electronic spray box (12) inside respectively, all be equipped with nozzle (14) of slope on repair chamber (9) lateral wall that blown down tank (13) outer end corresponds, slide (6) outer end is connected with annular magnetic iron (24).
3. The process for preparing the run-flat tire with self-repair function according to claim 2, wherein: the cross-sectional shape of smooth chamber (5) and limiting plate (10) is the annular respectively, just power piece (15) that are linked together with blown down tank (13) are installed to the lateral wall outer end of slide (6), be equipped with on power piece (15) lateral wall with slide (6) lateral wall tangent shower nozzle (16), just slide (6) bottom rotation is connected with bottom plate (17).
4. The process for preparing the run-flat tire with self-repair function according to claim 3, wherein the process comprises the following steps: and balance plates (18) matched with the self-repairing devices (3) are respectively arranged on the side walls of the corresponding rotating rings (4) between the two adjacent sliding cavities (5).
5. The process for preparing the run-flat tire with self-repair function according to claim 2, wherein: the tyre is characterized in that a group of elastic membranes (19) which are uniformly distributed and mutually attached are connected to the inner wall of the tyre body (2), and a closed blocking cavity (20) is formed between the elastic membranes (19) and the inner wall of the tyre body (2).
6. The process for preparing the run-flat tire with self-repair function according to claim 5, wherein the process comprises the following steps: a group of magnetic balls (21) are respectively arranged in the plugging cavity (20), the magnetic poles of one ends, close to each other, of the magnetic balls (21) and the magnetic iron (24) are the same, and the electromagnet (8) can attract the magnetic balls (21) when working.
7. The process for preparing the run-flat tire with self-repair function according to claim 6, wherein the process comprises the following steps: one side of the magnetic ball (21) close to the hub (1) is fixedly connected with the surface of the elastic membrane (19).
8. The process for preparing the run-flat tire with self-repair function according to claim 7, wherein the process comprises the following steps: slots (22) are respectively formed in the ends, close to each other, of the two adjacent magnetic balls (21), and an insertion rod (23) is inserted between the two adjacent slots (22).
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| Application Number | Priority Date | Filing Date | Title |
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| CN202110039201.2A CN112895540B (en) | 2021-01-13 | 2021-01-13 | Preparation and process of self-repairing safety tire |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202110039201.2A CN112895540B (en) | 2021-01-13 | 2021-01-13 | Preparation and process of self-repairing safety tire |
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| CN112895540B CN112895540B (en) | 2022-05-31 |
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20040194862A1 (en) * | 2001-09-14 | 2004-10-07 | Takashi Fukutomi | Pneumatic tire, process for producing the same, and rubber composition for sealant |
| CN109825161A (en) * | 2019-01-29 | 2019-05-31 | 江苏久祥科技有限公司 | A kind of selfreparing safety tread |
| CN111716834A (en) * | 2020-06-30 | 2020-09-29 | 无锡安睿驰科技有限公司 | Tire self-repairing rubber strip and preparation method thereof |
| CN111845223A (en) * | 2020-08-10 | 2020-10-30 | 滨州禾夏汽车用品有限公司 | Tire repairing device arranged inside tire |
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2021
- 2021-01-13 CN CN202110039201.2A patent/CN112895540B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20040194862A1 (en) * | 2001-09-14 | 2004-10-07 | Takashi Fukutomi | Pneumatic tire, process for producing the same, and rubber composition for sealant |
| CN109825161A (en) * | 2019-01-29 | 2019-05-31 | 江苏久祥科技有限公司 | A kind of selfreparing safety tread |
| CN111716834A (en) * | 2020-06-30 | 2020-09-29 | 无锡安睿驰科技有限公司 | Tire self-repairing rubber strip and preparation method thereof |
| CN111845223A (en) * | 2020-08-10 | 2020-10-30 | 滨州禾夏汽车用品有限公司 | Tire repairing device arranged inside tire |
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| CN112895540B (en) | 2022-05-31 |
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