CN112159554A - Anti-burst rubber tire and preparation method thereof - Google Patents

Anti-burst rubber tire and preparation method thereof Download PDF

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Publication number
CN112159554A
CN112159554A CN202011052171.0A CN202011052171A CN112159554A CN 112159554 A CN112159554 A CN 112159554A CN 202011052171 A CN202011052171 A CN 202011052171A CN 112159554 A CN112159554 A CN 112159554A
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China
Prior art keywords
plate
tire
rubber tire
frame
polishing
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CN202011052171.0A
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Chinese (zh)
Inventor
袁宏宏
吴迪
李宏升
程小虎
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Delun Rubber Co ltd
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Delun Rubber Co ltd
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Priority to CN202011052171.0A priority Critical patent/CN112159554A/en
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    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L7/00—Compositions of natural rubber
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C39/00—Shaping by casting, i.e. introducing the moulding material into a mould or between confining surfaces without significant moulding pressure; Apparatus therefor
    • B29C39/003—Shaping by casting, i.e. introducing the moulding material into a mould or between confining surfaces without significant moulding pressure; Apparatus therefor characterised by the choice of material
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C39/00—Shaping by casting, i.e. introducing the moulding material into a mould or between confining surfaces without significant moulding pressure; Apparatus therefor
    • B29C39/02—Shaping by casting, i.e. introducing the moulding material into a mould or between confining surfaces without significant moulding pressure; Apparatus therefor for making articles of definite length, i.e. discrete articles
    • B29C39/10—Shaping by casting, i.e. introducing the moulding material into a mould or between confining surfaces without significant moulding pressure; Apparatus therefor for making articles of definite length, i.e. discrete articles incorporating preformed parts or layers, e.g. casting around inserts or for coating articles
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29L—INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
    • B29L2030/00—Pneumatic or solid tyres or parts thereof
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
    • C08K3/00—Use of inorganic substances as compounding ingredients
    • C08K3/18—Oxygen-containing compounds, e.g. metal carbonyls
    • C08K3/20—Oxides; Hydroxides
    • C08K3/22—Oxides; Hydroxides of metals
    • C08K2003/2217—Oxides; Hydroxides of metals of magnesium
    • C08K2003/2224—Magnesium hydroxide
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
    • C08K3/00—Use of inorganic substances as compounding ingredients
    • C08K3/18—Oxygen-containing compounds, e.g. metal carbonyls
    • C08K3/20—Oxides; Hydroxides
    • C08K3/22—Oxides; Hydroxides of metals
    • C08K2003/2227—Oxides; Hydroxides of metals of aluminium
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
    • C08K3/00—Use of inorganic substances as compounding ingredients
    • C08K3/18—Oxygen-containing compounds, e.g. metal carbonyls
    • C08K3/24—Acids; Salts thereof
    • C08K3/26—Carbonates; Bicarbonates
    • C08K2003/265—Calcium, strontium or barium carbonate
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
    • C08K2201/00—Specific properties of additives
    • C08K2201/001—Conductive additives
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
    • C08K2201/00—Specific properties of additives
    • C08K2201/011—Nanostructured additives
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L2201/00—Properties
    • C08L2201/02—Flame or fire retardant/resistant
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L2201/00—Properties
    • C08L2201/04—Antistatic
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L2201/00—Properties
    • C08L2201/08—Stabilised against heat, light or radiation or oxydation

Abstract

The invention discloses a tire burst-proof rubber tire and a preparation method thereof, wherein the tire burst-proof rubber tire comprises the following raw materials: the invention relates to a tire flame-retardant rubber tire which is prepared by adding glass fiber and flame retardant into a raw material reaction kettle on the basis of a tire burst-proof rubber tire which is prepared from natural rubber, nitrile rubber, nano calcium carbonate, a foam stabilizer, a chain extender, an antioxidant, a defoaming agent, a flame retardant, glass fiber, a coupling agent, polyaniline modified bentonite and expandable graphite.

Description

Anti-burst rubber tire and preparation method thereof
Technical Field
The invention belongs to the technical field of tire production, and particularly relates to a tire burst-proof rubber tire and a preparation method thereof.
Background
The rapid development of the vehicle industry has been a direct driving force for the improvement of tire structure, and the development of vehicle tires is also one of the requirements for the improvement of vehicle performance, and the wear resistance of tire treads directly influences the service life of the tires, and the wear resistance is directly related to the economy of the tires. Obviously, the wear resistance, rolling resistance and skid resistance, or gripping performance, are the properties that are emphasized by tire manufacturers in the vehicle industry at present, and with the continuous improvement of vehicle performance and increasingly harsh use conditions of tires, the tire manufacturers are required to continuously select new materials and change tire structures, so that the tires are promoted to develop towards long service life, safety and environmental protection.
In recent years, solid rubber tires have been increasingly used in loading vehicles and construction vehicles, and the production process of solid rubber tires is a conventional process from a solid phase to a solid phase, which is relatively mature, but has disadvantages of easy chipping, cracking, and the like, and as disclosed in patent application No. 201811417936.9, a solid rubber tire includes a tread portion, a sidewall portion, and a bead portion, the sidewall portion having a plurality of concave structures formed by downwardly recessing surfaces of the sidewall portion, the concave structures and the surfaces of the sidewall portion forming concave-convex portions for guiding an air flow. Compared with the mode of forming a bulge on the side wall part by increasing the thickness in the prior art, the scheme disclosed by the invention actually forms the concave-convex part on the side wall part by reducing the material, and the mode not only enhances the heat dissipation of the side wall part of the rubber tire and prolongs the service life of the tire, but the existing explosion-proof rubber tire still has the following defects in the use process:
1. the existing explosion-proof rubber tire has poor wear resistance and heat resistance, so that the rubber tire generates heat seriously in the running process, and meanwhile, the existing explosion-proof rubber tire has poor anti-static capability, so that the service life of the explosion-proof rubber tire is short;
2. the existing tire burst-proof rubber tire is prepared in a process, the surface of the tire after injection molding is cut and polished manually, so that the polishing efficiency of the tire burst-proof rubber tire is low, and the tire burst-proof rubber tire is large in quality, so that the labor intensity is high in the turnover process of the tire burst-proof rubber tire, and time and labor are wasted.
Disclosure of Invention
The invention aims to provide a burst-proof rubber tire and a preparation method thereof, so as to solve the problems in the background technology.
In order to achieve the purpose, the invention provides the following technical scheme:
the tire burst-proof rubber tire comprises the following raw materials in parts by weight: 70-80 parts of natural rubber, 30-40 parts of nitrile rubber, 10-15 parts of nano calcium carbonate, 1-2 parts of a foam stabilizer, 1-2 parts of a chain extender, 3-5 parts of an antioxidant, 1-1.5 parts of a defoaming agent, 1-3 parts of a flame retardant, 3-5 parts of glass fiber, 0.5-1 part of a coupling agent, 3-5 parts of polyaniline modified bentonite and 10-15 parts of expandable graphite;
the preparation method of the run flat rubber tire comprises the following steps:
the method comprises the following steps: adding natural rubber and nitrile rubber into a reaction kettle, heating the reaction kettle to 70-80 ℃ through an electric heating sleeve, replacing air in the reaction kettle with nitrogen, adding nano calcium carbonate, polyaniline modified bentonite, a foam stabilizer, a chain extender and an antioxidant into the reaction kettle, heating to 110 ℃ for stirring at the rotating speed of 140-160r/min for 40-50 minutes, standing after stirring, controlling the temperature in the reaction kettle to be 40-50 ℃, and preserving heat for 2-3 hours to obtain a mixture A;
step two: adding expandable graphite into the mixture A obtained in the step one, heating the temperature in the reaction kettle to 60-70 ℃, stirring the reaction kettle at the rotating speed of 240-;
step three: spraying a layer of adhesive on the periphery of a hub of the run-flat tire through a spray gun, wherein the thickness of the adhesive is 35 microns, spraying a layer of release agent on the inner wall of a tire mold of the run-flat tire through the spray gun, the thickness of the release agent is 30 microns, after the spraying is finished, installing the hub in the tire mold to obtain a combined mold, placing the combined mold in a heating furnace for preheating and drying, wherein the preheating temperature is 80-90 ℃, and the preheating time is 10-15 minutes for later use;
step four: injecting the rubber elastomer melted in the step two into the combined mold in the step three by an elastomer casting machine, wherein the casting temperature is 140-150 ℃, standing and preserving heat for 1-2 hours after the casting is finished, the heat preservation temperature is 75-85 ℃, and after the combined mold is naturally cooled to room temperature, taking out the whole body formed by the casting body and the hub to obtain the rough blank of the anti-explosion rubber tire;
step five: placing the rough blank of the tire burst-proof rubber tire obtained in the fourth step on a supporting plate of a grinding rack, locking the rough blank of the tire burst-proof rubber tire on the grinding rack by rotating a locking plate, driving a connecting plate to move by an air cylinder to drive a piston rod to push the connecting plate to drive a polishing plate to move, enabling the polishing plate to be abutted against the outer surface of the rough blank of the tire burst-proof rubber tire, fixing the rough blank of the tire burst-proof rubber tire by the polishing plate on a right polishing frame, a left polishing frame and a front polishing frame, driving a screw rod to rotate by a motor I and driving a screw rod II to transversely move, adjusting the position of an L-shaped cutter, driving the screw rod I to rotate by a rotating wheel, driving the screw rod I to drive a nut seat to move a vertical plate in the vertical direction, and driving the piston rod to push a U-shaped plate to downwards by a hydraulic cylinder, make L type cutter offset with the surface and the side of the rubber tire rough blank of this run-flat, rotate through the motor drive pivot, thereby make the carousel drive the rubber tire rough blank of this run-flat rotate, cut through side and the side edge of L type cutter to the rubber tire rough blank of this run-flat, and polish through the frame of polishing on the right side, the frame of polishing on a left side, the preceding polishing board of polishing on the frame of polishing to the rubber tire rough blank of this run-flat after the cutting, thereby obtain the rubber tire of this run-flat.
As a further scheme of the invention: the preparation of the nano calcium carbonate comprises the following steps:
the method comprises the following steps: conveying the calcium hydroxide slurry aged for 36-72h to a slurry mixing tank, controlling the mass concentration of the slurry to be 10-13%, adding citric acid at the temperature of 15-20 ℃, uniformly stirring to obtain slurry, conveying the slurry to a carbonation reactor with a stirrer, introducing purified kiln gas to perform carbonation reaction until the pH of the slurry is reduced to 7.0, and completing the carbonation reaction to obtain nano calcium carbonate slurry;
step two: dissolving sodium polystyrene sulfonate and rosin in hot water at 95 ℃ in a mass ratio of 3-1:1 to prepare a sodium polystyrene sulfonate and rosin medicament with a mass concentration of 10-20%, and preserving heat for later use after dissolving; independently dissolving pentaerythritol stearate in hot water at 95 ℃ to prepare a pentaerythritol stearate medicament with the mass concentration of 40-60%, and preserving heat for later use after dissolving;
step three: conveying the nano calcium carbonate slurry obtained in the first step to an activation tank, introducing steam into the activation tank, controlling the temperature of the nano calcium carbonate slurry to be 60-85 ℃, then adding sodium polystyrene sulfonate and a rosin medicament, stirring for 30-45min, adding a pentaerythritol stearate medicament, stirring for 30-45min, finishing surface treatment, and carrying out filter pressing, drying and crushing on the nano calcium carbonate slurry subjected to surface treatment to obtain the nano calcium carbonate.
As a still further scheme of the invention: the polyaniline modified bentonite is prepared by mixing 80-90 parts by weight of organically treated bentonite, 5-7 parts by weight of aniline, 3-5 parts by weight of a hydrochloric acid solution with the concentration of 2mol/L and 3-5 parts by weight of an ammonium sulfate solution with the concentration of 2mol/L, adding the organically treated bentonite into a preparation tank, sequentially adding aniline, a hydrochloric acid solution with the concentration of 2mol/L and an ammonium persulfate solution with the concentration of 2mol/L into the preparation tank, standing for reaction for 6-8 hours to obtain a precipitate, drying for 6-7 hours by a dryer at the temperature of 60-70 ℃, fully grinding the precipitate, treating by a 400-mesh filter screen, and collecting powder to obtain the polyaniline modified bentonite.
As a still further scheme of the invention: the adhesive is an epoxy resin adhesive, and the release agent is methyl silicone oil.
As a still further scheme of the invention: the chain extender is diethylaminoethanol.
As a still further scheme of the invention: the defoaming agent is emulsified silicone oil.
As a still further scheme of the invention: the flame retardant consists of magnesium hydroxide and aluminum hydroxide, the ratio of the magnesium hydroxide to the aluminum hydroxide is 3:2, the magnesium hydroxide and the aluminum hydroxide are both in powder form, and the mesh number of the powder is 800-1000 meshes.
Compared with the prior art, the invention has the beneficial effects that:
1. according to the invention, on the basis of a rubber tire taking natural rubber and nitrile rubber as explosion-proof tires, glass fiber and a flame retardant prepared by mixing magnesium hydroxide and aluminum hydroxide according to the weight component ratio of 3:2 are added into a raw material reaction kettle, namely, the flame retardant effect of the tire is greatly improved by adding a flame retardant material, so that the heat resistance of the tire during friction is improved, meanwhile, polyaniline modified bentonite is prepared to be used as a conductive material, nano calcium carbonate and the polyaniline modified bentonite are compounded in expandable graphite, and the tire can be utilizedThe expanded graphite has a spatial structure characteristic and can form lasting effective conductive performance, so that a run-flat rubber tire produced by adding the antistatic high polymer material has lasting and reliable antistatic capacity, the wear resistance of the run-flat rubber tire is greatly improved, the obtained run-flat rubber tire material is subjected to performance tests such as hardness, elongation, peeling strength and the like according to related test standards, and the tensile strength of the run-flat rubber tire is not less than 60MPa, the elongation at break is not less than 720 percent, the Shore hardness is not less than 3A, and the peeling strength is not less than 10KN m.m.-1；
2. The rubber tire of the run-flat tire is placed on a supporting plate of a grinding rack, the rubber tire of the run-flat tire is locked on the grinding rack by rotating a locking disk, a piston rod is driven by a cylinder to push a connecting plate to move, the connecting plate drives a polishing plate to move, the polishing plate is abutted against the outer surface of the rubber tire of the run-flat tire, so that the polishing plate on a right polishing frame, a left polishing frame and a front polishing frame fixes the rubber tire of the run-flat tire, a screw rod is driven by a motor I to rotate by a driving screw rod II, the screw rod II drives a nut seat II to move transversely, the position of an L-shaped cutter is adjusted, the rotating wheel drives the screw rod I to rotate, the screw rod I drives the nut seat to drive a vertical plate to move in the vertical direction, a hydraulic cylinder drives the piston rod to push a U-shaped plate to move downwards, and the L-shaped cutter is abutted against the surface and the side surface of the rubber tire of the, rotate through the motor drive pivot, thereby make the carousel drive the thick rotation of the rubber tyre of this run-flat, cut through L type cutter to the side and the side edge of the rubber tyre of this run-flat, and polish the frame through the right side, left side is polished the frame, the board of polishing on the preceding frame of polishing is polished the rubber tyre of this run-flat after the cutting, make the cutting of the rubber tyre of this run-flat higher with the efficiency of polishing, very big improvement the preparation efficiency of the rubber tyre of this run-flat, traditional manual work has been abandoned simultaneously and has been polished, operating personnel's intensity of labour has been reduced.
Drawings
In order to facilitate understanding for those skilled in the art, the present invention will be further described with reference to the accompanying drawings.
Fig. 1 is a perspective view of a grinding table.
Fig. 2 is an enlarged view of a portion a in fig. 1.
Fig. 3 is a top view of the grinding table.
Fig. 4 is a schematic structural diagram of an L-shaped cutter in the grinding bench.
Fig. 5 is a bottom view of a U-shaped plate in the grinding table.
Fig. 6 is a schematic structural diagram of a nut seat in a grinding bench.
In the figure: the grinding machine comprises a grinding rack 1, an object placing plate 101, a foot cup pad 102, a guide wheel 103, a fixing plate 104, a rotating shaft 105, a supporting plate 106, a locking plate 107, a right grinding frame 2, an L-shaped fixing plate 201, an inclined plate 202, a folded edge 203, an air cylinder 204, a sleeve 205, a push rod 206, a connecting plate 207, a spring 208, a grinding plate 209, a left grinding frame 3, a front grinding frame 4, a cutting frame 5, an L-shaped plate frame 501, a screw rod I502, a rotating wheel 503, a guide rod I504, a sliding block 505, a vertical plate 506, a transverse plate I507, a hydraulic cylinder 508, a U-shaped plate 509, a guide column 510, a motor I511, a nut seat II 512, a screw rod II 513, an L-shaped cutter 514, a T-.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1 to 6, in an embodiment of the present invention, a tire burst prevention rubber tire includes the following raw materials in parts by weight: 75 parts of natural rubber, 35 parts of nitrile rubber, 12.5 parts of nano calcium carbonate, 1.5 parts of a foam stabilizer, 1.5 parts of a chain extender, 4 parts of an antioxidant, 1.25 parts of a defoaming agent, 2 parts of a flame retardant, 4 parts of glass fiber, 0.75 part of a coupling agent, 4 parts of polyaniline modified bentonite and 12.5 parts of expandable graphite;
the preparation method of the run flat rubber tire comprises the following steps:
the method comprises the following steps: adding natural rubber and nitrile rubber into a reaction kettle, heating the reaction kettle to 70-80 ℃ through an electric heating sleeve, replacing air in the reaction kettle with nitrogen, adding nano calcium carbonate, polyaniline modified bentonite, a foam stabilizer, a chain extender and an antioxidant into the reaction kettle, heating to 110 ℃ for stirring at the rotating speed of 140-160r/min for 40-50 minutes, standing after stirring, controlling the temperature in the reaction kettle to be 40-50 ℃, and preserving heat for 2-3 hours to obtain a mixture A;
step two: adding expandable graphite into the mixture A obtained in the step one, heating the temperature in the reaction kettle to 60-70 ℃, stirring the reaction kettle at the rotating speed of 240-;
step three: spraying a layer of adhesive on the periphery of a hub of the run-flat tire through a spray gun, wherein the thickness of the adhesive is 35 microns, spraying a layer of release agent on the inner wall of a tire mold of the run-flat tire through the spray gun, the thickness of the release agent is 30 microns, after the spraying is finished, installing the hub in the tire mold to obtain a combined mold, placing the combined mold in a heating furnace for preheating and drying, wherein the preheating temperature is 80-90 ℃, and the preheating time is 10-15 minutes for later use;
step four: injecting the rubber elastomer melted in the step two into the combined mold in the step three by an elastomer casting machine, wherein the casting temperature is 140-150 ℃, standing and preserving heat for 1-2 hours after the casting is finished, the heat preservation temperature is 75-85 ℃, and after the combined mold is naturally cooled to room temperature, taking out the whole body formed by the casting body and the hub to obtain the rough blank of the anti-explosion rubber tire;
step five: placing the rough blank of the tire burst-proof rubber tire obtained in the fourth step on a supporting plate 106 of a grinding rack 1, locking the rough blank of the tire burst-proof rubber tire on the grinding rack 1 by rotating a locking plate 107, driving a piston rod to push a connecting plate 207 to move by a cylinder 204, driving a polishing plate 209 to move by the connecting plate 207, enabling the polishing plate 209 to abut against the outer surface of the rough blank of the tire burst-proof rubber tire, fixing the rough blank of the tire burst-proof rubber tire by the polishing plate 209 on a right polishing rack 2, a left polishing rack 3 and a front polishing rack 4, driving a screw second 513 to rotate by a motor I511, driving a nut seat II 512 to move transversely by the screw II 513, adjusting the position of an L-shaped cutter 514, driving a screw I502 to rotate by a rotating wheel 503, driving the nut seat I by the screw I502 to drive a vertical plate 506 to move in the vertical direction, and drive the piston rod through the pneumatic cylinder 508 and promote the U template 509 and move downwards, make L type cutter 514 offset with the surface and the side of the rubber tire rough blank of this run-flat, rotate through motor drive pivot 105, thereby make carousel 105 drive the rubber tire rough blank of this run-flat and rotate, cut the side and the side edge department of the rubber tire rough blank of this run-flat through L type cutter 514, and polish the rubber tire rough blank of this run-flat after cutting through right side frame 2 of polishing, left side frame 3 of polishing, the board 209 of polishing on the preceding frame 4 of polishing, thereby obtain the rubber tire of this run-flat.
The preparation of the nano calcium carbonate comprises the following steps:
the method comprises the following steps: conveying the calcium hydroxide slurry aged for 36-72h to a slurry mixing tank, controlling the mass concentration of the slurry to be 10-13%, adding citric acid at the temperature of 15-20 ℃, uniformly stirring to obtain slurry, conveying the slurry to a carbonation reactor with a stirrer, introducing purified kiln gas to perform carbonation reaction until the pH of the slurry is reduced to 7.0, and completing the carbonation reaction to obtain nano calcium carbonate slurry;
step two: dissolving sodium polystyrene sulfonate and rosin in hot water at 95 ℃ in a mass ratio of 3-1:1 to prepare a sodium polystyrene sulfonate and rosin medicament with a mass concentration of 10-20%, and preserving heat for later use after dissolving; independently dissolving pentaerythritol stearate in hot water at 95 ℃ to prepare a pentaerythritol stearate medicament with the mass concentration of 40-60%, and preserving heat for later use after dissolving;
step three: conveying the nano calcium carbonate slurry obtained in the first step to an activation tank, introducing steam into the activation tank, controlling the temperature of the nano calcium carbonate slurry to be 60-85 ℃, then adding sodium polystyrene sulfonate and a rosin medicament, stirring for 30-45min, adding a pentaerythritol stearate medicament, stirring for 30-45min, finishing surface treatment, and carrying out filter pressing, drying and crushing on the nano calcium carbonate slurry subjected to surface treatment to obtain the nano calcium carbonate.
The polyaniline modified bentonite is prepared by mixing 80-90 parts by weight of organically treated bentonite, 5-7 parts by weight of aniline, 3-5 parts by weight of a hydrochloric acid solution with the concentration of 2mol/L and 3-5 parts by weight of an ammonium sulfate solution with the concentration of 2mol/L, adding the organically treated bentonite into a preparation tank, sequentially adding aniline, a hydrochloric acid solution with the concentration of 2mol/L and an ammonium persulfate solution with the concentration of 2mol/L into the preparation tank, standing for reaction for 6-8 hours to obtain a precipitate, drying for 6-7 hours by a dryer at the temperature of 60-70 ℃, fully grinding the precipitate, treating by a 400-mesh filter screen, and collecting powder to obtain the polyaniline modified bentonite.
The adhesive is an epoxy resin adhesive, and the release agent is methyl silicone oil.
The chain extender is diethylaminoethanol.
The defoaming agent is emulsified silicone oil.
The flame retardant consists of magnesium hydroxide and aluminum hydroxide, the ratio of the magnesium hydroxide to the aluminum hydroxide is 3:2, the magnesium hydroxide and the aluminum hydroxide are both in powder form, and the mesh number of the powder is 800-1000 meshes.
A preparation method of a tire burst-proof rubber tire comprises the following specific steps:
the preparation method of the run flat rubber tire comprises the following steps:
the method comprises the following steps: adding natural rubber and nitrile rubber into a reaction kettle, heating the reaction kettle to 70-80 ℃ through an electric heating sleeve, replacing air in the reaction kettle with nitrogen, adding nano calcium carbonate, polyaniline modified bentonite, a foam stabilizer, a chain extender and an antioxidant into the reaction kettle, heating to 110 ℃ for stirring at the rotating speed of 140-160r/min for 40-50 minutes, standing after stirring, controlling the temperature in the reaction kettle to be 40-50 ℃, and preserving heat for 2-3 hours to obtain a mixture A;
step two: adding expandable graphite into the mixture A obtained in the step one, heating the temperature in the reaction kettle to 60-70 ℃, stirring the reaction kettle at the rotating speed of 240-;
step three: spraying a layer of adhesive on the periphery of a hub of the run-flat tire through a spray gun, wherein the thickness of the adhesive is 35 microns, spraying a layer of release agent on the inner wall of a tire mold of the run-flat tire through the spray gun, the thickness of the release agent is 30 microns, after the spraying is finished, installing the hub in the tire mold to obtain a combined mold, placing the combined mold in a heating furnace for preheating and drying, wherein the preheating temperature is 80-90 ℃, and the preheating time is 10-15 minutes for later use;
step four: injecting the rubber elastomer melted in the step two into the combined mold in the step three by an elastomer casting machine, wherein the casting temperature is 140-150 ℃, standing and preserving heat for 1-2 hours after the casting is finished, the heat preservation temperature is 75-85 ℃, and after the combined mold is naturally cooled to room temperature, taking out the whole body formed by the casting body and the hub to obtain the rough blank of the anti-explosion rubber tire;
step five: placing the rough blank of the tire burst-proof rubber tire obtained in the fourth step on a supporting plate 106 of a grinding rack 1, locking the rough blank of the tire burst-proof rubber tire on the grinding rack 1 by rotating a locking plate 107, driving a piston rod to push a connecting plate 207 to move by a cylinder 204, driving a polishing plate 209 to move by the connecting plate 207, enabling the polishing plate 209 to abut against the outer surface of the rough blank of the tire burst-proof rubber tire, fixing the rough blank of the tire burst-proof rubber tire by the polishing plate 209 on a right polishing rack 2, a left polishing rack 3 and a front polishing rack 4, driving a screw second 513 to rotate by a motor I511, driving a nut seat II 512 to move transversely by the screw II 513, adjusting the position of an L-shaped cutter 514, driving a screw I502 to rotate by a rotating wheel 503, driving the nut seat I by the screw I502 to drive a vertical plate 506 to move in the vertical direction, and drive the piston rod through the pneumatic cylinder 508 and promote the U template 509 and move downwards, make L type cutter 514 offset with the surface and the side of the rubber tire rough blank of this run-flat, rotate through motor drive pivot 105, thereby make carousel 105 drive the rubber tire rough blank of this run-flat and rotate, cut the side and the side edge department of the rubber tire rough blank of this run-flat through L type cutter 514, and polish the rubber tire rough blank of this run-flat after cutting through right side frame 2 of polishing, left side frame 3 of polishing, the board 209 of polishing on the preceding frame 4 of polishing, thereby obtain the rubber tire of this run-flat.
In the fifth step, a right grinding frame 2, a left grinding frame 3, a front grinding frame 4 and a cutting frame 5 are respectively arranged on the table top of the grinding table frame 1, the right grinding frame 2 and the left grinding frame 3 are symmetrical about the axis of the grinding table frame 1 in the vertical direction, and the front grinding frame 4 and the cutting frame 5 are symmetrical about the axis of the grinding table frame 1 in the horizontal direction;
the fixed plate 104 that is provided with on the mesa of grinding rack 1, the fixed motor that is provided with on the bottom surface of grinding rack 1, the output shaft of motor runs through the one end fixed connection of the face of fixed plate 104 with pivot 105, the external screw thread has been seted up on the pivot 105, the bottom mounting of pivot 105 is provided with supporting disk 106, there is locking dish 107 on the top of pivot 105 through threaded connection, places the rubber tire of explosion-proof tyre in pivot 105, makes the rubber tire bottom surface of explosion-proof tyre erect on supporting disk 106, through rotating locking dish 107, realizes the locking of the rubber tire of explosion-proof tyre in pivot 105.
The cutting frame 5 comprises an L-shaped plate frame 501, the L-shaped plate frame 501 is vertically arranged on the table top of a grinding table frame 1, a first screw 502 is vertically arranged between a horizontal plate of the L-shaped plate frame 501 and the grinding table frame 1, the top end of the first screw 502 penetrates through the horizontal plate of the L-shaped plate frame 501 and is connected with a rotating wheel 503, the first screw 502 is connected with a first nut seat through threads, a vertical plate 506 is vertically arranged on the front surface of the first nut seat, guide rods 504 are vertically arranged on two sides of the first screw 502, sliding blocks 505 matched with the first screw 502 are arranged on two sides of the vertical plate 506, the vertical plate 506 is slidably connected on the first guide rods 504 through the sliding blocks 505, transverse plates 507 are welded on the front surface of the vertical plate 506, hydraulic cylinders 508 are fixedly arranged on the top surfaces of the transverse plates 507, and piston rods of the hydraulic cylinders 508 are fixedly connected with the center positions of the top surfaces, four corners on the top surface of the U-shaped plate 509 are vertically provided with guide columns 510 respectively, the top ends of the guide columns 510 are slidably connected in through holes of four corners of a transverse plate I507, the rotating wheel 503 is rotated to drive the screw rod I502 to rotate, so that the screw rod I502 drives the nut seat I to drive the vertical plate 506 to move in the vertical direction, the hydraulic cylinder 508 drives the piston rod to push the U-shaped plate 509 to move downwards, and the L-shaped cutter 514 is abutted to the surface and the side face of the rubber tire of the run-flat tire.
The inside level of U template 509 is provided with two screws 513, one side that U template 509 was run through to the one end of two screws 513 is connected with the output of motor 511, there are two nut seats 512 through threaded connection on two screws 513, T type groove 515 has been seted up along the horizontal direction on the bottom surface of two nut seats 512, sliding connection has T type piece in the T type groove 515 of two nut seats 512, and the fixed L type cutter 514 that is provided with on the bottom surface of T type piece, the change of L type cutter 514 on two nut seats 512 of being convenient for, threaded hole 516 has been seted up on the side of two nut seats 512, threaded hole 516 of two nut seats 512 has locking screw through threaded connection, the end of locking screw offsets with the side of the inside T type piece in T type groove 515, realizes the locking of L type cutter 514 on two nut seats 512 through screwing up locking screw and fixes.
The right grinding frame 2, the left grinding frame 3 and the front grinding frame 4 are completely consistent in structure, the right grinding frame 2 comprises an L-shaped fixing plate 201 and an air cylinder 204 arranged on one side of a vertical plate of the L-shaped fixing plate 201, inclined plates 202 in a triangular structure are respectively arranged on two sides of the L-shaped fixing plate 201, folded edges 203 are respectively arranged on two longitudinal sides of a horizontal plate of the L-shaped fixing plate 201, a plurality of threaded through holes are formed in the folded edges 203 in the vertical direction, the L-shaped fixing plate 201 is fixedly arranged on a table top of the workbench 1 through the folded edges 203 through fastening screws, the air cylinder 204 is fixedly arranged on the inner side surface of the vertical plate of the L-shaped fixing plate 201, a piston rod of the air cylinder 204 penetrates through the vertical plate of the L-shaped fixing plate 201 and is fixedly connected with the center of the plate surface of the connecting plate 207, through holes are respectively formed in, the other ends of the four connecting rods are respectively inserted into through holes at the corner of the plate surface at one side of the polishing plate 209, a spring 208 is sleeved on a rod piece of the connecting rod positioned between the connecting plate 207 and the polishing plate 209, two ends of the spring 208 respectively abut against the plate surfaces of the connecting plate 207 and the polishing plate 209, sleeves 205 are respectively arranged at two longitudinal sides of the vertical plate of the L-shaped fixing plate 201 positioned between the air cylinders 204, the sleeves 205 penetrate through the vertical plate of the L-shaped fixing plate 201 in the horizontal direction, a push rod 206 is connected in the sleeves 205 in a sliding manner, one end of the push rod 206 is fixedly connected with the plate surface of the connecting plate 207, a piston rod is driven by the air cylinders 204 to push the connecting plate 207 to move, the connecting plate 207 drives the polishing plate 209 to move, the polishing plate 209 is made to abut against the outer surface of the rubber tire of the run-flat, and thus the fixing of the polishing plate 209 on the right, the polishing plate 209 is facilitated to polish the explosion-proof type rubber tire.
The working principle of the grinding rack is as follows: the tire burst-proof rubber tire is placed on a supporting plate 106 of a grinding rack 1, the tire burst-proof rubber tire is locked on the grinding rack 1 by rotating a locking plate 107, a piston rod is driven by an air cylinder 204 to push a connecting plate 207 to move, the connecting plate 207 drives a polishing plate 209 to move, the polishing plate 209 abuts against the outer surface of the tire burst-proof rubber tire, the polishing plate 209 on a right polishing rack 2, a left polishing rack 3 and a front polishing rack 4 is fixed on the tire burst-proof rubber tire, a screw second plate 513 is driven by a motor I511 to rotate, a screw second 513 drives a nut seat II 512 to move transversely, the position of an L-shaped cutter 514 is adjusted, the rotating wheel 503 drives the screw first 502 to rotate, the screw first 502 drives the nut seat I to drive a vertical plate 506 to move in the vertical direction, and the piston rod is driven by a hydraulic cylinder 508 to push a U509 to move downwards, make L type cutter 514 offset with the surface and the side of this run-flat's rubber tyre, rotate through motor drive pivot 105 to make carousel 105 drive this run-flat's rubber tyre thick and rotate, cut the side and the side edge of this run-flat's rubber tyre through L type cutter 514, and polish the rubber tyre of this run-flat after the cutting through right side frame 2 of polishing, left side frame 3 of polishing, the preceding board 209 of polishing on the frame 4 of polishing.
Although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that various changes in the embodiments and/or modifications of the invention can be made, and equivalents and modifications of some features of the invention can be made without departing from the spirit and scope of the invention.

Claims (10)

1. The tire burst-proof rubber tire is characterized by comprising the following raw materials in parts by weight: 70-80 parts of natural rubber, 30-40 parts of nitrile rubber, 10-15 parts of nano calcium carbonate, 1-2 parts of a foam stabilizer, 1-2 parts of a chain extender, 3-5 parts of an antioxidant, 1-1.5 parts of a defoaming agent, 1-3 parts of a flame retardant, 3-5 parts of glass fiber, 0.5-1 part of a coupling agent, 3-5 parts of polyaniline modified bentonite and 10-15 parts of expandable graphite;
the preparation method of the run flat rubber tire comprises the following steps:
the method comprises the following steps: adding natural rubber and nitrile rubber into a reaction kettle, heating the reaction kettle to 70-80 ℃ through an electric heating sleeve, replacing air in the reaction kettle with nitrogen, adding nano calcium carbonate, polyaniline modified bentonite, a foam stabilizer, a chain extender and an antioxidant into the reaction kettle, heating to 110 ℃ for stirring at the rotating speed of 140-160r/min for 40-50 minutes, standing after stirring, controlling the temperature in the reaction kettle to be 40-50 ℃, and preserving heat for 2-3 hours to obtain a mixture A;
step two: adding expandable graphite into the mixture A obtained in the step one, heating the temperature in the reaction kettle to 60-70 ℃, stirring the reaction kettle at the rotating speed of 240-;
step three: spraying a layer of adhesive on the periphery of a hub of the run-flat tire through a spray gun, wherein the thickness of the adhesive is 35 microns, spraying a layer of release agent on the inner wall of a tire mold of the run-flat tire through the spray gun, the thickness of the release agent is 30 microns, after the spraying is finished, installing the hub in the tire mold to obtain a combined mold, placing the combined mold in a heating furnace for preheating and drying, wherein the preheating temperature is 80-90 ℃, and the preheating time is 10-15 minutes for later use;
step four: injecting the rubber elastomer melted in the step two into the combined mold in the step three by an elastomer casting machine, wherein the casting temperature is 140-150 ℃, standing and preserving heat for 1-2 hours after the casting is finished, the heat preservation temperature is 75-85 ℃, and after the combined mold is naturally cooled to room temperature, taking out the whole body formed by the casting body and the hub to obtain the rough blank of the anti-explosion rubber tire;
step five: placing the tire burst-proof rubber tire rough blank obtained in the fourth step on a supporting plate (106) of a grinding rack (1), locking the tire burst-proof rubber tire rough blank on the grinding rack (1) by rotating a locking plate (107), driving a piston rod to push a connecting plate (207) to move by a cylinder (204), driving a polishing plate (209) to move by the connecting plate (207), enabling the polishing plate (209) to be abutted against the outer surface of the tire burst-proof rubber tire rough blank, fixing the tire burst-proof rubber tire rough blank by the polishing plate (209) on a right polishing rack (2), a left polishing rack (3) and a front polishing rack (4), driving a screw rod II (513) to rotate by a motor I (511), enabling the screw rod II (513) to drive a nut seat II (512) to move transversely, adjusting the position of an L-shaped cutter (514), and rotating a rotating wheel (503), make runner (503) drive screw rod (502) rotate, thereby make screw rod (502) drive nut seat one and drive riser (506) and move on vertical direction, and drive piston rod through pneumatic cylinder (508) and promote U template (509) downstream, make L type cutter (514) offset with the surface and the side of the rubber tire rough blank of this explosion-proof child, rotate through motor drive pivot (105), thereby make carousel (105) drive the rubber tire rough blank of this explosion-proof child and rotate, cut side and the side edge department of the rubber tire rough blank of this explosion-proof child through L type cutter (514), and polish this explosion-proof child's rubber tire rough blank after cutting through right side frame (2) of polishing, left side frame (3), board (209) on preceding frame (4) of polishing, thereby obtain the rubber tire of this explosion-proof child.
2. A runflat rubber tire according to claim 1, wherein the preparation of nano calcium carbonate comprises the steps of:
the method comprises the following steps: conveying the calcium hydroxide slurry aged for 36-72h to a slurry mixing tank, controlling the mass concentration of the slurry to be 10-13%, adding citric acid at the temperature of 15-20 ℃, uniformly stirring to obtain slurry, conveying the slurry to a carbonation reactor with a stirrer, introducing purified kiln gas to perform carbonation reaction until the pH of the slurry is reduced to 7.0, and completing the carbonation reaction to obtain nano calcium carbonate slurry;
step two: dissolving sodium polystyrene sulfonate and rosin in hot water at 95 ℃ in a mass ratio of 3-1:1 to prepare a sodium polystyrene sulfonate and rosin medicament with a mass concentration of 10-20%, and preserving heat for later use after dissolving; independently dissolving pentaerythritol stearate in hot water at 95 ℃ to prepare a pentaerythritol stearate medicament with the mass concentration of 40-60%, and preserving heat for later use after dissolving;
step three: conveying the nano calcium carbonate slurry obtained in the first step to an activation tank, introducing steam into the activation tank, controlling the temperature of the nano calcium carbonate slurry to be 60-85 ℃, then adding sodium polystyrene sulfonate and a rosin medicament, stirring for 30-45min, adding a pentaerythritol stearate medicament, stirring for 30-45min, finishing surface treatment, and carrying out filter pressing, drying and crushing on the nano calcium carbonate slurry subjected to surface treatment to obtain the nano calcium carbonate.
3. The tire burst-proof rubber tire according to claim 1, wherein the polyaniline-modified bentonite is prepared by mixing 80-90 parts by weight of organically-treated bentonite, 5-7 parts by weight of aniline, 3-5 parts by weight of a 2mol/L hydrochloric acid solution and 3-5 parts by weight of a 2mol/L ammonium sulfate solution, adding the organically-treated bentonite into a preparation tank, sequentially adding aniline, a 2mol/L hydrochloric acid solution and a 2mol/L ammonium persulfate solution into the preparation tank, standing for 6-8 hours to obtain a precipitate, drying for 6-7 hours by a 60-70 ℃ dryer, fully grinding the precipitate, treating by a 400-mesh filter screen, and collecting powder to obtain the polyaniline-modified bentonite.
4. A runflat rubber tire according to claim 1, wherein the adhesive is an epoxy adhesive and the release agent is methyl silicone oil.
5. A runflat rubber tyre according to claim 1, characterized in that the chain extender is diethylaminoethanol.
6. A runflat rubber tire according to claim 1, wherein the defoamer is silicone emulsion.
7. The tire burst-proof rubber tire as claimed in claim 1, wherein the flame retardant is composed of magnesium hydroxide and aluminum hydroxide, the ratio of the magnesium hydroxide to the aluminum hydroxide is 3:2, the magnesium hydroxide and the aluminum hydroxide are both in powder form, and the mesh number of the powder is 800-1000 meshes.
8. The preparation method of the tire burst-proof rubber tire is characterized by comprising the following specific steps:
the preparation method of the run flat rubber tire comprises the following steps:
the method comprises the following steps: adding natural rubber and nitrile rubber into a reaction kettle, heating the reaction kettle to 70-80 ℃ through an electric heating sleeve, replacing air in the reaction kettle with nitrogen, adding nano calcium carbonate, polyaniline modified bentonite, a foam stabilizer, a chain extender and an antioxidant into the reaction kettle, heating to 110 ℃ for stirring at the rotating speed of 140-160r/min for 40-50 minutes, standing after stirring, controlling the temperature in the reaction kettle to be 40-50 ℃, and preserving heat for 2-3 hours to obtain a mixture A;
step two: adding expandable graphite into the mixture A obtained in the step one, heating the temperature in the reaction kettle to 60-70 ℃, stirring the reaction kettle at the rotating speed of 240-;
step three: spraying a layer of adhesive on the periphery of a hub of the run-flat tire through a spray gun, wherein the thickness of the adhesive is 35 microns, spraying a layer of release agent on the inner wall of a tire mold of the run-flat tire through the spray gun, the thickness of the release agent is 30 microns, after the spraying is finished, installing the hub in the tire mold to obtain a combined mold, placing the combined mold in a heating furnace for preheating and drying, wherein the preheating temperature is 80-90 ℃, and the preheating time is 10-15 minutes for later use;
step four: injecting the rubber elastomer melted in the step two into the combined mold in the step three by an elastomer casting machine, wherein the casting temperature is 140-150 ℃, standing and preserving heat for 1-2 hours after the casting is finished, the heat preservation temperature is 75-85 ℃, and after the combined mold is naturally cooled to room temperature, taking out the whole body formed by the casting body and the hub to obtain the rough blank of the anti-explosion rubber tire;
step five: placing the tire burst-proof rubber tire rough blank obtained in the fourth step on a supporting plate (106) of a grinding rack (1), locking the tire burst-proof rubber tire rough blank on the grinding rack (1) by rotating a locking plate (107), driving a piston rod to push a connecting plate (207) to move by a cylinder (204), driving a polishing plate (209) to move by the connecting plate (207), enabling the polishing plate (209) to be abutted against the outer surface of the tire burst-proof rubber tire rough blank, fixing the tire burst-proof rubber tire rough blank by the polishing plate (209) on a right polishing rack (2), a left polishing rack (3) and a front polishing rack (4), driving a screw rod II (513) to rotate by a motor I (511), enabling the screw rod II (513) to drive a nut seat II (512) to move transversely, adjusting the position of an L-shaped cutter (514), and rotating a rotating wheel (503), make runner (503) drive screw rod (502) rotate, thereby make screw rod (502) drive nut seat one and drive riser (506) and move on vertical direction, and drive piston rod through pneumatic cylinder (508) and promote U template (509) downstream, make L type cutter (514) offset with the surface and the side of the rubber tire rough blank of this explosion-proof child, rotate through motor drive pivot (105), thereby make carousel (105) drive the rubber tire rough blank of this explosion-proof child and rotate, cut side and the side edge department of the rubber tire rough blank of this explosion-proof child through L type cutter (514), and polish this explosion-proof child's rubber tire rough blank after cutting through right side frame (2) of polishing, left side frame (3), preceding board (209) of polishing on frame (4), thereby obtain the rubber tire of this explosion-proof child.
9. The method for preparing the run-flat rubber tire according to claim 8, wherein in the fifth step, a right grinding frame (2), a left grinding frame (3), a front grinding frame (4) and a cutting frame (5) are respectively arranged on the table top of the grinding table frame (1), the right grinding frame (2) and the left grinding frame (3) are symmetrical about the axis of the grinding table frame (1) in the vertical direction, and the front grinding frame (4) and the cutting frame (5) are symmetrical about the axis of the grinding table frame (1) in the horizontal direction;
a fixed plate (104) is fixedly arranged on the table top of the grinding table frame (1), a motor is fixedly arranged on the bottom surface of the grinding table frame (1), an output shaft of the motor penetrates through the plate surface of the fixed plate (104) and is fixedly connected with one end of a rotating shaft (105), an external thread is arranged on the rotating shaft (105), a supporting plate (106) is fixedly arranged at the bottom end of the rotating shaft (105), and the top end of the rotating shaft (105) is connected with a locking plate (107) through a thread;
the cutting frame (5) comprises an L-shaped plate frame (501), the L-shaped plate frame (501) is vertically arranged on the table top of the grinding table frame (1), a first screw rod (502) is vertically arranged between a horizontal plate of the L-shaped plate frame (501) and the grinding table frame (1), the horizontal plate, which penetrates through the L-shaped plate frame (501), at the top end of the first screw rod (502) is connected with a rotating wheel (503), the first screw rod (502) is connected with a first nut seat through threads, a vertical plate (506) is vertically arranged on the front surface of the first nut seat, first guide rods (504) are vertically arranged on two sides of the first screw rod (502), sliding blocks (505) matched with the first screw rod (502) are arranged on two sides of the first nut seat at the back surface of the vertical plate (506), the vertical plate (506) is slidably connected on the first guide rods (504) through the sliding blocks (505), and a first transverse plate (507) is welded on the, a hydraulic cylinder (508) is fixedly arranged on the top surface of the first transverse plate (507), a piston rod of the hydraulic cylinder (508) is fixedly connected with the center of the top surface of the U-shaped plate (509), guide columns (510) are vertically arranged at four corners of the top surface of the U-shaped plate (509) respectively, and the top ends of the guide columns (510) are connected in through holes at the four corners of the first transverse plate (507) in a sliding manner;
the inside level of U template (509) is provided with screw rod two (513), one side that U template (509) was run through to the one end of screw rod two (513) is connected with motor one (511) output, there is nut seat two (512) through threaded connection on screw rod two (513), T type groove (515) have been seted up along the horizontal direction on the bottom surface of nut seat two (512), sliding connection has T type piece in T type groove (515) of nut seat two (512), and fixed L type cutter (514) that is provided with on the bottom surface of T type piece, screw hole (516) have been seted up on the side of nut seat two (512), screw hole (516) of nut seat two (512) have locking screw through threaded connection, locking screw's end offsets with the side of the inside T type piece in T type groove (515).
10. The method for preparing the tire burst-proof rubber tire according to claim 9, wherein the right grinding frame (2), the left grinding frame (3) and the front grinding frame (4) have the same structure, the right grinding frame (2) comprises an L-shaped fixing plate (201) and a cylinder (204) arranged on one side of a vertical plate of the L-shaped fixing plate (201), inclined plates (202) with triangular structures are respectively arranged on two sides of the L-shaped fixing plate (201), folded edges (203) are respectively arranged on two longitudinal sides of a horizontal plate of the L-shaped fixing plate (201), a plurality of thread through holes are formed in the folded edges (203) in the vertical direction, the L-shaped fixing plate (201) is fixedly arranged on a table top of the workbench (1) through the folded edges (203) through fastening screws, and the cylinder (204) is fixedly arranged on the inner side face of the vertical plate of the L-shaped fixing plate (201), a piston rod of the air cylinder (204) penetrates through a vertical plate of the L-shaped fixing plate (201) and is fixedly connected with the center of the plate surface of the connecting plate (207), through holes are formed in four corners of the plate surface on the other side of the connecting plate (207), connecting rods are inserted into the through holes, the other ends of the four connecting rods are inserted into the through holes in the corners of the plate surface on one side of the polishing plate (209), springs (208) are sleeved on rod pieces of the connecting rods between the connecting plate (207) and the polishing plate (209), and two ends of the springs (208) are abutted to the plate surfaces of the connecting plate (207) and the polishing plate (209) respectively;
the vertical board of L type fixed plate (201) is located cylinder (204) vertical both sides and is provided with sleeve (205) respectively, sleeve (205) run through the setting of the vertical board of L type fixed plate (201) in the horizontal direction, sliding connection has catch bar (206) in sleeve (205), the one end of catch bar (206) and the face fixed connection of connecting plate (207).
CN202011052171.0A 2020-09-29 2020-09-29 Anti-burst rubber tire and preparation method thereof Pending CN112159554A (en)

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