CN105539016A - Polyurethane sandwiched tire and preparation method thereof - Google Patents
Polyurethane sandwiched tire and preparation method thereof Download PDFInfo
- Publication number
- CN105539016A CN105539016A CN201610018409.5A CN201610018409A CN105539016A CN 105539016 A CN105539016 A CN 105539016A CN 201610018409 A CN201610018409 A CN 201610018409A CN 105539016 A CN105539016 A CN 105539016A
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- Prior art keywords
- tire
- tyre
- inner tube
- cover tire
- polyurethane
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60C—VEHICLE TYRES; TYRE INFLATION; TYRE CHANGING; CONNECTING VALVES TO INFLATABLE ELASTIC BODIES IN GENERAL; DEVICES OR ARRANGEMENTS RELATED TO TYRES
- B60C7/00—Non-inflatable or solid tyres
- B60C7/10—Non-inflatable or solid tyres characterised by means for increasing resiliency
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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
- B29D30/02—Solid tyres ; Moulds therefor
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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
- B29D30/04—Resilient fillings for rubber tyres; Filling tyres therewith
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60C—VEHICLE TYRES; TYRE INFLATION; TYRE CHANGING; CONNECTING VALVES TO INFLATABLE ELASTIC BODIES IN GENERAL; DEVICES OR ARRANGEMENTS RELATED TO TYRES
- B60C13/00—Tyre sidewalls; Protecting, decorating, marking, or the like, thereof
Abstract
The invention discloses a polyurethane sandwiched tire. The polyurethane sandwiched tire comprises an outer tire and an inner tire wrapped in the outer tire. The shore hardness of the outer tire is higher than that of the inner tire. The outer tire surface of the inner tire is provided with a circle of grooves which are through in the left and right direction, wherein the direction of the grooves is perpendicular to the tire running direction, and the cross section of each groove is semicircular. The inner tire surface of the outer tire is provided with convex edges which correspond to the grooves, wherein the number of the convex edges is equal to that of the grooves, the length of the convex edges is equal to that of the grooves, and the cross section of each convex edge is also semicircular. The convex edges of the outer tire are arranged in the grooves of the inner tire in a bonding mode. The invention further discloses a preparation method of the polyurethane sandwiched tire. According to the preparation method, the inner tire and the outer tire are formed through a two-time liquid injection method. The prepared polyurethane sandwiched tire has the advantages of being high in resilience, resistant to tear and nail puncture and the like; especially, the high resilience is excellent and is incomparable for that of rubber, and the overall performance approximates the resilience of a pneumatic tire.
Description
Technical field
The invention belongs to tyre technology, be specifically related to a kind of polyurethane sandwich tire and preparation method thereof.
Background technology
Comparatively early, from the seventies in last century, external large-scale rubber tire enterprise, is finding always and is developing the substitute products of rubber tire, have the polyurethane elastomer of the title of liquid rubber, is unique selection in external pu tire research starting.Main three kinds of process exploitation researchs at present.
1. polyurethane elastomer band tyre
The novel Durotane tire that David brother company of the U.S. utilizes polyurethane elastomer exploitation to be directly contained on Electricmotor car wheel, demonstrates good wear resisting property under severe conditions during transporting cargo.
Dunlop Pirelli Union of Britain exploitation polyurethane solid tyre is to be used for the king-sized goods of shipping mass.
Gu special, focus is placed on polyurethane solid tyre, by pu tire material adhesive on wheel rim, wheel rim is directly installed on axletree and uses.The composition and engineering of this pu tire obtains US Patent all.The novel blue PU tire that Mo2narch company releases has rolling resistance and travels the low feature of temperature rise, can be used for fork truck, workshop section's bogie and such as food processing and sale, weaving, papermaking, brewage and flat truck that smelting etc. is industrial, tire consumption can be made to reduce half, be subject to user's favorable comment.
2. the plug-in polyurethane elastomer of rubber filling gas tyre
Gu special research is not only confined to full PU tire, and relate to polyurethane/rubber composite tyre, and for the difference of polyurethane and vulcanizate polarity, both adhesion techniques of primary study and method, surface modification is carried out by repeatedly applying the coating for rubber vulcanizates such as methyl methacrylate 2NR graft copolymer, phenol resin on vulcanization of rubber glue surface, acquisition can meet the interfacial bond strength of harsh usage condition, makes polyurethane tread, carcass, the application of sidewall Inlaid strip on rubber tire become possibility.
3. filling polyurethane elastomer in rubber pneumatic tire
Phoenix company of Germany research and development polyurethane filling rubber air filled tyre.Arnco company of Canada have developed high resilience polyurethane material for filling inflated rubber tire.Flexible polyurethane material is used as heat stability self-sealing Runflat tire inner liner tire, by the performance such as super softness, high resiliency of polyurethane elastomer to ultimate attainment.
The seventies in last century was once done the research of some pu tires by China, the airtyred systematic study of cast polyurethane is started the nineties in last century, once expand comprehensive research for cast tyre raw MAT'L (polyalcohol and curing agent etc.), tire construction, reaction injection molding machine, tire-mold and processing technology, and produce cast polyurethane air-inflation tyre finished product in 1998.Although this project have passed national acceptance in 1999, still there is the technical matterss such as endurance quality difference in product, needs to be solved further, never put on market and measured data.
The poly-urethane rubber composite tyre that the large prestige tire plant in Qiqihar is succeeded in developing, for matrix with new, used tire carcass, the polyurethane tread of the certain thickness high abrasion of outer hanging and pouring last layer, low distortion, anti-puncture is made, and its service life is 3 ~ 5 times of General Purpose Rubber tire.
Guangzhou SCUT Bestry Sci-Tech Ltd. is developing polyurethane plug-in rubber NEW TYPE OF COMPOSITE green tire, has certain application prospect, but the tire produced at present can not give play to advantage and the performance of polyurethane elastomer comprehensively.
The performance that the rubber such as wear resisting property is good, load is high though polyurethane elastomer has, anti tear are incomparable, but in polyurethane elastomer itself exists, heat-dissipating is large, resistance to effect of heat is not good enough, fatigue performance and problem, the therefore exploitation stagnation of high-speed rank pu tire such as flexible resistance is not good enough under high dynamic load.And the research and development of pu tire are costly, the market cultivation phase is relatively long, adds the reason of the aspects such as material cost, some company the is yielded effort of this respect.
Summary of the invention
For the problems referred to above existed in currently available technology, an object of the present invention is to provide a kind of polyurethane sandwich tire with advantages such as high resilience, tear-resistant, anti-pinnings.
Another object of the present invention is to provide a kind of preparation method of polyurethane sandwich tire, and obtained tire is outer hard interior soft, under the prerequisite with high-wearing feature, has higher elasticity, overcomes the problem of inside and outside consistent band tyre poor flexibility.
Technical scheme of the present invention is as follows:
A kind of polyurethane sandwich tire, comprise cover tire, be coated on the inner tube of a tyre of cover tire inside, the shore hardness of described cover tire is greater than the shore hardness of the described inner tube of a tyre, the tread of the described inner tube of a tyre be provided with within about one week, run through, cross-sectional plane vertical with tire running direction be semi-round groove, the inner tread of cover tire is provided with quantity is identical, length is equal, cross-sectional plane is similarly the corresponding fin of semi-round and described groove, the fin of described cover tire is placed in inner tube of a tyre groove and bonds together.Namely adopt wave semicircle bonding, Main Function is; Increase the area of contact of the inner tube of a tyre and cover tire, strengthening bonding force, the Impact direction of the dispersion inner tube of a tyre, when cover tire and earth surface, conducted by cover tire to the application force vertically upward of the inner tube of a tyre, be distributed to different directions, reduction application force is vertically upward to the damage of the inner tube of a tyre.
Preferably, the two sides, sidewall of described cover tire all arranges one week damping, buffering hole vertical with travel direction, and described damping, buffering hole is circular, and the distribution in " V " font along sidewall of described damping, buffering hole.Main Function is; Because high hardness polyurethane has very high bearing force and tensile resistence, circular damping, buffering hole is designed on cover tire sidewall, is exactly in order on the basis keeping sidewall height bearing force and tensile force, increase the elasticity of compression of tire, when tire bears a heavy burden running, produce and compress instantaneously, the effect of moment resilience.
Preferably, described inner tube of a tyre sidewall is provided with annular groove, bonding with the annular protrusion in the middle of cover tire sidewall.Further, described outer sidewall is provided with cylinder through inner tube of a tyre inside and parallel with described fin, and described cylinder and cover tire two side are connected as a single entity.When the stressed extruding of the inner tube of a tyre, have application force to expand to the sidewall of cover tire, the annular groove on inner tube of a tyre sidewall, exactly in order to make the power dispersion acting on cover tire, the cylinder in the inner tube of a tyre, playing stretches further pins down the effect of cover tire sidewall evagination.And cylindrical material is identical with cover tire material.
Preferably, the inner periphery of cover tire is provided with steel loop near rim, the cross sectional shape of steel loop is circular, and then strengthen closely cooperating of polyurethane sandwich tire and tyre rim, prevent tire lateral slip, prevent from wearing and tearing in tire used process and between steel ring and occurring gap, improve the period of service of tire.
The invention also discloses a kind of preparation method of polyurethane sandwich tire, adopt liquid double injection method shaping, comprise assembling inner tube mold-→ cast soft estrodur performed polymer-→ extrusion forming-→ demoulding-→ sulfuration-→ cleaning-→ brushing adhesive-→ put into outer placenta-→ install additional steel loop-→ pour into a mould high hardness estrodur performed polymer-→ extrusion forming-→ demoulding-→ sulfuration-→ finished product, specifically comprise the steps:
(1) inner tube of a tyre is prepared: first assemble inner tube mold, pouring liquid raw MAT'L A, through extrusion forming at 100 DEG C, the demoulding after 1 hour, and then under 100 DEG C of environment, carry out sulfuration form for 12 hours;
(2) cover tire is prepared: inner tube of a tyre washes of absolute alcohol step (1) prepared, dry, outer placenta is put into after even brushing one deck adhesive for polyurethane, and the circumference of placenta installs one week steel loop additional outside, pouring liquid raw MAT'L B again, through extrusion forming, the demoulding after 1 hour, and then under 100 DEG C of environment, carry out sulfuration 12 hours, obtain finished product.
The concrete preparation method of described liquid starting material A is: the ratio mixing by MDI base polyester polyol performed polymer, chain expansion of succinic acid agent (BD chain extender) and acetic acid according to mass ratio being 95:5:0.1, then, under temperature is 65 ~ 70 DEG C of parts, react 40 ~ 60 minutes.
The concrete preparation method of described liquid starting material B is: the ratio mixing by MDI base polyester polyol performed polymer, E-300 chain extender and acetic acid according to mass ratio being 88:12:0.1, then reacts 40 ~ 60 minutes under temperature is 100 DEG C of conditions.
The shore hardness of described inner tube of a tyre material is A50, and the shore hardness of described cover tire material is A85.Be specially cover tire and use shore hardness A85 degree high hardness polyurethane material, Main Function is: wear-resisting, anti tear, and antifatigue is ageing-resistant etc., above-mentioned indices, is 5 ~ 10 times of rubber tire.The inner tube of a tyre uses shore hardness A50 degree soft high-rebound polyurethane material, and Main Function is: high resilience, tear-resistant, anti-pinning etc., and particularly high resilience can be excellent, and be that rubber is incomparable, overall performance is close to airtyred rebound performance.
The invention has the beneficial effects as follows:
The polyurethane sandwich tire that the present invention obtains, has high resilience, tear-resistant, the advantages such as anti-pinning, and particularly high resilience can be excellent, and be that rubber is incomparable, overall performance is close to airtyred rebound performance.
Tire of the present invention has a built-in high resiliency carcass, carcass has high hardness, strong wear-resisting tyre surface, and tire flower is ripe rubber tire tire flower design, and carcass is arranged on metallic wheel or wheel rim under pressure, is non-inflatable tyre.Non-inflatable tyre has many advantages, because this tire is solid, not sealing or pressurized air, thus the bundle tire deflation problem of air-inflation tyre is not had, also can not produce and produce sponge problem because of a large amount of heat-dissipating, in addition, can not there is the system of badly damaged without the need to repairing in on-inflatable pu tire or one.Non-inflatable tyre reasonably can also use material, and minimizing sizing material parts and loaded section amass, and reduce costs, and be only single assembly set simultaneously, can remove the assembly working of each parts from because of it.
In addition, the faying face that contacts to earth of cover tire of the present invention and the inner tube of a tyre, adopt wave semicircle bonding, Main Function is; Increase the area of contact of the inner tube of a tyre and cover tire, strengthening bonding force, the Impact direction of the dispersion inner tube of a tyre, when cover tire and earth surface, conducted by cover tire to the application force vertically upward of the inner tube of a tyre, be distributed to different directions, reduction application force is vertically upward to the damage of the inner tube of a tyre.
This outer sidewall is provided with cylinder through inner tube of a tyre inside and parallel with described fin, and described cylinder and cover tire two side are connected as a single entity.When power extruding received by the inner tube of a tyre, have application force to expand to the sidewall of cover tire, the recessed groove on inner tube of a tyre sidewall, exactly in order to make the power dispersion acting on cover tire, the cylinder in the inner tube of a tyre, playing stretches further pins down the effect of cover tire sidewall evagination.
Accompanying drawing explanation
Fig. 1 is the structural representation of a kind of sandwich tire of the present invention;
Fig. 2 is the structural representation of the sandwich Outer Tyre of the present invention;
Fig. 3 is the structural representation of the sandwich tire inner tube of the present invention;
Fig. 4 is the Structure of cross section figure of the sandwich tire of the present invention;
Fig. 5 is the fabrication processing figure of the sandwich tire of the present invention.
Wherein, 1-cover tire, the 2-inner tube of a tyre, 101-fin, 102-annular protrusion, 103-damping, buffering hole, 104-steel loop, 105-circle
Cylinder, 201-groove, 202-annular groove.
Detailed description of the invention
In more detail specific embodiments of the invention are described below with reference to accompanying drawings.Although show specific embodiments of the invention in accompanying drawing, however should be appreciated that can realize the present invention in a variety of manners and not should limit by the embodiment set forth here.On the contrary, provide these embodiments to be in order to more thoroughly the present invention can be understood, and complete for scope of the present invention can be conveyed to those skilled in the art.
" comprising " or " comprising " as mentioned in the middle of specification sheets and claim is in the whole text an open language, therefore should be construed to " comprise but be not limited to ".Specification sheets subsequent descriptions is for implementing better embodiment of the present invention, and right described description is for the purpose of the rule of specification sheets, and is not used to limit scope of the present invention.Protection scope of the present invention is when being as the criterion depending on the claims person of defining.
Embodiment 1
A kind of polyurethane sandwich tire, as depicted in figs. 1 and 2, comprise cover tire 1, be coated on the inner tube of a tyre 2 of cover tire inside, the shore hardness of described cover tire 1 is greater than the shore hardness of the described inner tube of a tyre 2, the tread of the described inner tube of a tyre 2 be provided with within about one week, run through, cross-sectional plane vertical with tire running direction be semi-round groove 201, the inner tread of cover tire is provided with quantity is identical, length is equal, cross-sectional plane is similarly the corresponding fin 101 of semi-round and described groove 201, the fin 101 of described cover tire is placed in inner tube of a tyre groove 201 and bonds together.Namely adopt wave semicircle bonding, to increase the bond area of the inner tube of a tyre and cover tire, strengthening bonding force, the Impact direction of the dispersion inner tube of a tyre, when cover tire and earth surface, conducted by cover tire to the application force vertically upward of the inner tube of a tyre, be distributed to different directions, reduction application force is vertically upward to the damage of the inner tube of a tyre.
Embodiment 2
A kind of polyurethane sandwich tire, as depicted in figs. 1 and 2, comprise cover tire 1, be coated on the inner tube of a tyre 2 of cover tire inside, the shore hardness of described cover tire 1 is greater than the shore hardness of the described inner tube of a tyre 2, the tread of the described inner tube of a tyre 2 be provided with within about one week, run through, cross-sectional plane vertical with tire running direction be semi-round groove 201, the inner tread of cover tire is provided with quantity is identical, length is equal, cross-sectional plane is similarly the corresponding fin 101 of semi-round and described groove 201, the fin of described cover tire is placed in inner tube of a tyre groove and bonds together.
Further, the two sides, sidewall of described cover tire all arranges one week damping, buffering hole 103 vertical with travel direction, and described damping, buffering hole 103 is circular, and the distribution in " V " font along sidewall of described damping, buffering hole 103.Main Function is; Because high hardness polyurethane has very high bearing force and tensile resistence, cover tire sidewall arranges circular damping, buffering hole, is exactly in order on the basis keeping sidewall height bearing force and tensile force, increase the elasticity of compression of tire, when tire bears a heavy burden running, produce and compress instantaneously, the effect of moment resilience.
Embodiment 3
A kind of polyurethane sandwich tire, as shown in figures 1-4, comprise cover tire 1, be coated on the inner tube of a tyre 2 of cover tire inside, the shore hardness of described cover tire 1 is greater than the shore hardness of the described inner tube of a tyre 2, the tread of the described inner tube of a tyre 2 be provided with within about one week, run through, cross-sectional plane vertical with tire running direction be semi-round groove 201, the inner tread of cover tire is provided with quantity is identical, length is equal, cross-sectional plane is similarly the corresponding fin 101 of semi-round and described groove 201, the fin of described cover tire is placed in inner tube of a tyre groove and bonds together.
Further, the two sides, sidewall of described cover tire all arranges one week damping, buffering hole 103 vertical with travel direction, and described damping, buffering hole 103 is circular, and the distribution in " V " font along sidewall of described damping, buffering hole 103.
Further, described inner tube of a tyre sidewall is provided with annular groove 202, bonding with the annular protrusion 102 in the middle of cover tire sidewall, simultaneously, further, described cover tire 1 sidewall is provided with the cylinder 105 inner and parallel with described fin 101 through the inner tube of a tyre 2, and described cylinder 105 is connected as a single entity with cover tire two side.When the stressed extruding of the inner tube of a tyre, have application force to expand to the sidewall of cover tire, the annular groove on inner tube of a tyre sidewall, exactly in order to make the power dispersion acting on cover tire, the cylinder in the inner tube of a tyre, playing stretches further pins down the effect of cover tire sidewall evagination.
Embodiment 4
A kind of polyurethane sandwich tire, as shown in figures 1-4, comprise cover tire 1, be coated on the inner tube of a tyre 2 of cover tire inside, the shore hardness of described cover tire 1 is greater than the shore hardness of the described inner tube of a tyre 2, the tread of the described inner tube of a tyre 2 be provided with within about one week, run through, cross-sectional plane vertical with tire running direction be semi-round groove 201, the inner tread of cover tire is provided with quantity is identical, length is equal, cross-sectional plane is similarly the corresponding fin 101 of semi-round and described groove 201, the fin of described cover tire is placed in inner tube of a tyre groove and bonds together.
Further, the two sides, sidewall of described cover tire all arranges one week damping, buffering hole 103 vertical with travel direction, and described damping, buffering hole 103 is circular, and the distribution in " V " font along sidewall of described damping, buffering hole 103.
Further, described inner tube of a tyre sidewall is provided with annular groove 202, bonding with the annular protrusion 102 in the middle of cover tire sidewall, simultaneously, further, described cover tire 1 sidewall is provided with the cylinder 105 inner and parallel with described fin 101 through the inner tube of a tyre 2, and described cylinder 105 is connected as a single entity with cover tire two side.
Further, the inner periphery of cover tire is provided with steel loop 104 near rim, the cross sectional shape of steel loop 104 is circular, and then strengthen closely cooperating of polyurethane sandwich tire and tyre rim, prevent tire lateral slip, prevent from wearing and tearing in tire used process and between steel ring and occurring gap, improve the service life of tire.
The polyurethane sandwich tire that the present invention obtains, has high resilience, tear-resistant, the advantages such as anti-pinning, and particularly high resilience can be excellent, and be that rubber is incomparable, overall performance is close to airtyred rebound performance.
Embodiment 5
A kind of preparation method of polyurethane sandwich tire, its flow scheme is shown in Fig. 5, comprise assembling inner tube mold-→ cast soft estrodur performed polymer-→ extrusion forming-→ demoulding-→ sulfuration-→ cleaning-→ brushing adhesive-→ put into outer placenta-→ install additional steel loop-→ pour into a mould high hardness estrodur performed polymer-→ extrusion forming-→ demoulding-→ sulfuration-→ finished product, specifically comprise the steps:
(1) inner tube of a tyre is prepared: first assemble inner tube mold, pouring liquid raw MAT'L A, through extrusion forming at 100 DEG C, the demoulding after 1 hour, and then under 100 DEG C of environment, carry out sulfuration form for 12 hours;
(2) cover tire is prepared: inner tube of a tyre washes of absolute alcohol step (1) prepared, dry, outer placenta is put into after even brushing one deck adhesive for polyurethane, and the circumference of placenta installs one week steel loop additional outside, pouring liquid raw MAT'L B again, through extrusion forming, the demoulding after 1 hour, and then under 100 DEG C of environment, carry out sulfuration 12 hours, obtain finished product.
The concrete preparation method of described liquid starting material A is: the ratio mixing by MDI base polyester polyol performed polymer, chain expansion of succinic acid agent and acetic acid according to mass ratio being 95:5:0.1, then under temperature is 65 ~ 70 DEG C of parts, reacts 40 ~ 60 minutes.
The concrete preparation method of described liquid starting material B is: the ratio mixing by MDI base polyester polyol performed polymer, E-300 chain extender and acetic acid according to mass ratio being 88:12:0.1, then reacts 40 ~ 60 minutes under temperature is 100 DEG C of conditions.
The shore hardness of described inner tube of a tyre material is A50, and the shore hardness of described cover tire material is A85.Be specially cover tire and use shore hardness A85 degree high hardness polyurethane material, Main Function is: wear-resisting, anti tear, and antifatigue is ageing-resistant etc., above-mentioned indices, is 5 ~ 10 times of rubber tire.The inner tube of a tyre uses shore hardness A50 degree soft high-rebound polyurethane material, and Main Function is: high resilience, tear-resistant, anti-pinning etc., and particularly high resilience can be excellent, and be that rubber is incomparable, overall performance is close to airtyred rebound performance.
The foregoing is only embodiments of the invention; not thereby the scope of the claims of the present invention is limited; every utilize description of the present invention to do equivalent structure or equivalent flow process conversion; or be directly or indirectly used in other relevant technical fields, be all in like manner included in scope of patent protection of the present invention.
Claims (8)
1. a polyurethane sandwich tire, it is characterized in that, described polyurethane sandwich tire comprises cover tire (1), be coated on the inner tube of a tyre (2) that cover tire (1) is inner, the shore hardness of described cover tire (1) is greater than the shore hardness of the described inner tube of a tyre (2), the tread of the described inner tube of a tyre (2) is provided with and runs through for about one week, and cross-sectional plane vertical with tire running direction is semi-round groove (201), the inner tread of cover tire is provided with quantity identical, length is equal, cross-sectional plane is similarly the corresponding fin (101) of semi-round and described groove (201), the fin (101) of described cover tire is placed in inner tube of a tyre groove (201) and bonds together.
2. polyurethane sandwich tire according to claim 1, it is characterized in that, the two sides, sidewall of described cover tire (1) all arranges one week damping, buffering hole (103) vertical with travel direction, and described damping, buffering hole (103) is circular.
3. polyurethane sandwich tire according to claim 2, is characterized in that, described damping, buffering hole (103) is the distribution in " V " font along sidewall.
4. polyurethane sandwich tire according to claim 1, is characterized in that, the described inner tube of a tyre (2) sidewall is provided with annular groove (202), bonding with the annular protrusion (102) in the middle of cover tire (1) sidewall.
5. polyurethane sandwich tire according to claim 1, it is characterized in that, described cover tire (1) sidewall is provided with the cylinder (105) inner and parallel with described fin (101) through the inner tube of a tyre (1), and described cylinder (105) and cover tire (1) two side are connected as a single entity.
6. polyurethane sandwich tire according to claim 1, is characterized in that, the inner periphery of described cover tire (1) is provided with steel loop (104) near rim, and the cross sectional shape of described steel loop (104) is circular.
7. the preparation method of the polyurethane sandwich tire according to any one of claim 1 ~ 6, is characterized in that, described preparation method comprises the steps:
(1) inner tube of a tyre is prepared: first assemble inner tube mold, pouring liquid raw MAT'L A, through extrusion forming at 100 DEG C, the demoulding after 1 hour, and then under 100 DEG C of environment, carry out sulfuration form for 12 hours; The concrete preparation method of described liquid starting material A is: the ratio mixing by MDI base polyester polyol performed polymer, chain expansion of succinic acid agent and acetic acid according to mass ratio being 95:5:0.1, then under temperature is 65 ~ 70 DEG C of parts, reacts 40 ~ 60 minutes;
(2) cover tire is prepared: inner tube of a tyre washes of absolute alcohol step (1) prepared, dry, outer placenta is put into after even brushing one deck adhesive for polyurethane, and the circumference of placenta installs one week steel loop additional outside, pouring liquid raw MAT'L B again, through extrusion forming, the demoulding after 1 hour, and then under 100 DEG C of environment, carry out sulfuration 12 hours, obtain finished product; The concrete preparation method of described liquid starting material B is: the ratio mixing by MDI base polyester polyol performed polymer, E-300 chain extender and acetic acid according to mass ratio being 88:12:0.1, then reacts 40 ~ 60 minutes under temperature is 100 DEG C of conditions.
8. the preparation method of polyurethane sandwich tire according to claim 7, is characterized in that, the shore hardness of described inner tube of a tyre material is A50, and the shore hardness of described cover tire material is A85.
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| CN201610018409.5A CN105539016A (en) | 2016-01-12 | 2016-01-12 | Polyurethane sandwiched tire and preparation method thereof |
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| CN107199832A (en) * | 2017-05-23 | 2017-09-26 | 宁波格林美孚新材料科技有限公司 | A kind of inflation-free solid tyre |
| CN107325254A (en) * | 2017-07-10 | 2017-11-07 | 合肥雄川机械销售有限公司 | A kind of preparation method of rice transplanter accessory |
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| CN108059087A (en) * | 2017-12-27 | 2018-05-22 | 宁波市凹凸重工有限公司 | A kind of traveling wheel composite construction and its active and passive traveling wheel |
| CN108357302A (en) * | 2018-03-13 | 2018-08-03 | 亿嘉和科技股份有限公司 | The encapsulated tire of assembled hatching solid and its manufacturing technique method |
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| CN109535692A (en) * | 2018-10-25 | 2019-03-29 | 唐山市赛娜机电设备有限责任公司 | A kind of nano-polyurethane aeroelastic body and its application |
| CN110667311A (en) * | 2019-11-11 | 2020-01-10 | 孙智勇 | Structure and manufacturing process of inflation-free tire |
| CN111002766A (en) * | 2018-10-06 | 2020-04-14 | 冯艳 | Higher non-pneumatic tire of security |
| CN111016189A (en) * | 2019-12-24 | 2020-04-17 | 温州富成机械有限公司 | Injection molding process for rubber hollow tires with different physical properties |
| CN113232460A (en) * | 2021-05-26 | 2021-08-10 | 宁波豌豆动力科技有限公司 | Shock-absorbing tire and manufacturing process thereof |
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| CN106004250B (en) * | 2016-08-02 | 2019-01-29 | 深圳市金特安科技有限公司 | Open architecture tire |
| WO2018176729A1 (en) * | 2017-03-28 | 2018-10-04 | 彭小燕 | Non-pneumatic tire of double-density composite polymer material |
| CN107199832A (en) * | 2017-05-23 | 2017-09-26 | 宁波格林美孚新材料科技有限公司 | A kind of inflation-free solid tyre |
| CN107325254A (en) * | 2017-07-10 | 2017-11-07 | 合肥雄川机械销售有限公司 | A kind of preparation method of rice transplanter accessory |
| CN107685460A (en) * | 2017-10-11 | 2018-02-13 | 颜伟 | Ring type assembling die |
| CN108059087A (en) * | 2017-12-27 | 2018-05-22 | 宁波市凹凸重工有限公司 | A kind of traveling wheel composite construction and its active and passive traveling wheel |
| CN108357302A (en) * | 2018-03-13 | 2018-08-03 | 亿嘉和科技股份有限公司 | The encapsulated tire of assembled hatching solid and its manufacturing technique method |
| CN111002766A (en) * | 2018-10-06 | 2020-04-14 | 冯艳 | Higher non-pneumatic tire of security |
| CN109535692A (en) * | 2018-10-25 | 2019-03-29 | 唐山市赛娜机电设备有限责任公司 | A kind of nano-polyurethane aeroelastic body and its application |
| CN110667311A (en) * | 2019-11-11 | 2020-01-10 | 孙智勇 | Structure and manufacturing process of inflation-free tire |
| CN111016189A (en) * | 2019-12-24 | 2020-04-17 | 温州富成机械有限公司 | Injection molding process for rubber hollow tires with different physical properties |
| CN113232460A (en) * | 2021-05-26 | 2021-08-10 | 宁波豌豆动力科技有限公司 | Shock-absorbing tire and manufacturing process thereof |
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