CN206306739U - Non-inflatable tyre - Google Patents

Abstract

The utility model provides a kind of non-inflatable tyre, belongs to rubber tyre field, and Stability Analysis of Structures, lightweight, crushing resistance are good, and ground connection performance and handling stability can be more excellent.Non-inflatable tyre of the present utility model includes rubber tread successively along tire radial direction ecto-entad, vulcanize integral base rubber with rubber tread, and the elastic support played a supportive role to rubber tread, elastic support includes the interior bearing ring being in contact with wheel rim, with the outer bearing ring of base portion glue laminating, and the midfoot support body between interior bearing ring and outer bearing ring；Midfoot support body includes the first supporter and the second supporter that are distributed uniformly and circumferentially, wherein, the second supporter includes multilayer negative poisson's ratio elementary layer, and every layer of negative poisson's ratio elementary layer is uniformly distributed circumferentially by multiple negative poisson's ratio units and formed.

Description

Non-inflatable tyre

Technical field

The utility model is related to tire art, more particularly to a kind of non-inflatable tyre.

Background technology

Now widely used tubed tyre and tubeless tyre are pneumatic tire, and its principle is by tyre cavity Injecting compressed air carries tire, and its maximum potential safety hazard is, once tire is punctured by sharp objects, scratched, pole Easily there is deflation gas leakage, or even blow out, cause security incident.Therefore, based on to aspects such as tire ride comfort, securities Consider, non-inflatable tyre has turned into main trend, by the extensive attention of consumer and tire manufacturer.

CN104999862A discloses a kind of non-inflatable safety tyre, be followed successively by from inside to outside tyre surface, outer shroud, supporter and Inner ring, tyre surface bonding or vulcanizes on outer shroud, the supporter since outer shroud, radially and be circumferentially arranged in outer shroud and Between inner ring, circumferentially distributed multigroup vibration absorption unit and brace rod on the supporter, every group of vibration absorption unit is by two groups of dampings Structure composition, two groups of shock-damping structures are with radial direction for symmetry axis is axially arranged.But, be located in supporter vibration absorption unit and outer shroud it Between circumferential ring body in be not provided with can uniform discrete ground pressure through hole or supporting construction, when tire ground connection position is located at Ground pressure is small during damping hole site, and when tire ground connection position is located at shock relieve vent hole wall position, ground pressure is big, be unfavorable for by Ground pressure is transferred uniformly into supporter, the ground connection situation that impression is uneven and handling comfort is relatively low easily occurs.

CN 102529583B disclose the ultra-light-weight non-inflatable tyre structure based on negative poisson's ratio structure, specific open Include a rotary shaft, and around a series of concentric annular knots being made up of negative poisson's ratio unit structure cell of the rotary shaft Structure.Each unit structure cell constitutes the compressed structure (referred to as support) of negative poisson's ratio v-shaped structure by one group and tension structure is (referred to as Tendon) composition.The arrangement side for being easy to tire to roll on the ground is used in the unit structure cell and its covering material of tire outmost turns Formula, and using the material with suitable coefficient of friction, so that tire is when rotating and there is optimal interaction on ground, and Tire performance enhancement with the increase of ground reaction force.One is provided with the middle of every two-layer (V-arrangement unit cell units) cyclic structure The interlayer being made up of certain material or mixing material, to form the (netted, ring-type, textile-like or be linked to be of shape in flakes One) tire construction.Suitable material can be filled in the space of unit cell units, one outside outermost unit cell units As for can add covering material.But the v-shaped structure is prepared by spot welding, riveting, bonding, binding or other methods, is made The standby cumbersome correspondence connected mode of mode is complicated；And the support of two-layer v-shaped structure is easily achieved stress collection with tendon junction up and down In, it is unfavorable for the transmission of power, easily realize earlier period damage during use.

Utility model content

In order to solve the above problems, the utility model provides the good Novel free of a kind of Stability Analysis of Structures, lightweight, crushing resistance Pneumatic tire, the ground connection performance and handling stability of the non-inflatable tyre can be more excellent.

In order to achieve the above object, the technical solution adopted in the utility model is：

Non-inflatable tyre, rubber tread is included along tire radial direction ecto-entad successively, vulcanizes integral with rubber tread Base rubber, and the elastic support played a supportive role to rubber tread, elastic support include be in contact with wheel rim in hold Pressure ring, the outer bearing ring with base portion glue laminating, and the midfoot support body between interior bearing ring and outer bearing ring；Middle part branch Support body includes the first supporter and the second supporter that are distributed uniformly and circumferentially, wherein, the second supporter is negative including multilayer Poisson's ratio elementary layer, every layer of negative poisson's ratio elementary layer is uniformly distributed circumferentially by multiple negative poisson's ratio units and formed.

Preferably, the first supporter includes the V-arrangement component that is distributed uniformly and circumferentially, multiple V-arrangement components are by the One end is circumferentially connected, and the first end of each V-arrangement component is radially connected a "eight" shape component, "eight" shape component top with Outer bearing ring connection.

Preferably, negative poisson's ratio unit is formed by connecting by positive V components and the component of falling V by the 3rd end, every layer of negative pool Pine is circumferentially connected than the negative poisson's ratio unit of elementary layer by the 3rd end, the negative poisson's ratio unit of multilayer negative poisson's ratio elementary layer Radially connected by the 4th end, the negative poisson's ratio elementary layer of nearly interior bearing ring side is connected by the 4th end with interior bearing ring Connect.

Preferably, the second end of V-arrangement component and the second supporter nearly outer bearing ring side is born in the first supporter The 4th end of the component of falling V is radially connected in Poisson's ratio elementary layer.

Preferably, the fragment of the positive V components and the component of falling V for constituting negative poisson's ratio unit is located inside negative poisson's ratio unit Edge it is inwardly protruding into cambered surface, edge outwardly convex outside negative poisson's ratio unit is into cambered surface；Constitute "eight" shape group The fragment both sides of the edge of part raise into cambered surface.

Preferably, constituting the angle of the angle more than the fragment for constituting the component of falling V of the fragment of V-arrangement component, negative poisson's ratio In unit, the angle for constituting the fragment of positive V components is identical with the angle of the fragment for constituting the component of falling V.

Preferably, multilayer negative poisson's ratio elementary layer is along multiple negative poisson's ratio units of tire radial direction ecto-entad, structure Angle into the fragment of positive V components is sequentially reduced with the angle of the fragment for constituting the component of falling V.

Preferably, resilient support external body sets the sidewall that is connected with rubber tread, outer bearing ring and interior bearing ring it Between sidewall include multistage camber line structure, adjacent camber line is tangent two-by-two.

Preferably, the top arc of rubber tread circumference section is the low one section of arc or two sections of tangent arcs in middle part two ends high Structure；When the top arc of rubber tread circumference section is one section of arc structure, arcuate midway point 2-4mm high compared with two ends, three strokes and dots circles Can obtain circular curve；When top arc is two sections of tangent arc structures, tread is highly 2-7mm.

Preferably, outer bearing ring outside is provided with the first draw-in groove, the axial cross section of the first draw-in groove is shaped as down " convex " word Shape or indent " ten " font, wherein, the short side of inverted "convex" shape is towards tire rotating shaft；Set at base rubber and outer pressure-bearing ring combined face It is equipped with second draw-in groove corresponding with the first draw-in groove, the axial cross section of the second draw-in groove is positive "convex" shaped or evagination " ten " font, Wherein, the short side of positive "convex" shaped is towards tire rotating shaft；First draw-in groove and the second draw-in groove are along tire circumference equidistantly distributed.

Compared with prior art, advantage of the present utility model and good effect are：

1st, some negative poisson's ratio unit periodic arrangements of non-inflatable tyre of the present utility model make supporter be arranged in chess shape, The transmission of automobile load on axle can effectively be carried out and tire is carried, when the structure meets forced contraction on a direction, both direction It is upper to shrink simultaneously, there is compressibility higher while more difficult generation detrusion, improves the rigidity and intensity of supporting body structure, Meet its stress deformation trend, alleviate the weight of supporter, improve the comfortableness of tire.

2nd, the circumferential section circular arc in rubber tread top makes wheel using the low tangent arc of one section of arc or two ends in middle part two ends high Tire ground connection impression is presented oval or square, helps to reduce rubber tread abrasion.

3rd, the gross thickness 15mm-30mm of rubber tread and base rubber, and the use of elastic support, rubber tread, base rubber Not only tire used performance had been met but also had met the material of the small requirement of proportion, so as to reduce tire quality；And to the glue of rubber tread Material is optimized, and reduces tire drag, helps to reduce vehicle oil consumption, energy saving.

4th, the sidewall on the outside of elastic support uses multistage camber line structure, and ensures that every section of camber line is tangent two-by-two including upper The narrow tangent camber line structure of formula multistage, up and down wide tangent structure of multistage arc etc., can guarantee that the basis of the enough supportives of tire under width Upper reduction tire weight simultaneously increases aesthetic property.

5th, non-inflatable tyre of the present utility model, outer bearing ring is that mechanical draw-in groove is connected with base rubber, makes tyre surface and base portion Glue is mounted on midfoot support body, enhances the ability of fitting of base rubber and midfoot support body, prevents tire from being travelled in high speed When midfoot support body and base rubber produce delamination, further improve the handling safety performance of tire.

Brief description of the drawings

Fig. 1 is the non-inflatable tyre longitudinal section view of the embodiment of the utility model one；

Fig. 2 is the non-inflatable tyre stereogram of the embodiment of the utility model one；

Fig. 3 is the non-inflatable tyre local radial sectional view of the embodiment of the utility model one；

Fig. 4 is the non-inflatable tyre negative poisson's ratio unit partial enlarged drawing of the embodiment of the utility model one；

Fig. 5 is the non-inflatable tyre sidewall structural representation of the embodiment of the utility model one；

Fig. 6 is the tyre surface designed arc-shaped appearance schematic diagram of the non-inflatable tyre of the embodiment of the utility model one；

Fig. 7 is the first draw-in groove of the present utility model and the second draw-in groove first embodiment stereogram；

Fig. 8 is the first draw-in groove of the present utility model and the second draw-in groove second embodiment stereogram；

Above in each figure：1st, rubber tread；2nd, base rubber；21st, the second draw-in groove；3rd, elastic support；4th, outer bearing ring； 41st, the first draw-in groove；5th, midfoot support body；51st, the first supporter；511st, "eight" shape component；512nd, V-arrangement component；513rd, first End；514th, the second end；52nd, the second supporter；521st, the component of falling V；522nd, positive V components；523rd, the 3rd end；524；4th End；6th, interior bearing ring.

Specific embodiment

Below, the utility model is specifically described by exemplary implementation method.It should be appreciated, however, that not having In the case of being further discussed below, element, structure and features in an implementation method can also be advantageously incorporated into other implementations In mode.

, it is necessary to explanation, the rotor shaft direction of tire is axial direction, circumference side in accompanying drawing 1 in description of the present utility model To being circumference, along the direction of radius for radially；And along radius increase direction be it is outside, along radius reduction direction be inside； Radial section is that, perpendicular to the section of tire rotating shaft, circumferential section was tire rotating shaft and perpendicular to circumference side along radial direction To section；Term " on ", D score, " top ", the orientation of the instruction such as " bottom " or position relationship be based on the position shown in Fig. 1 Relation, is for only for ease of description the utility model and simplifies description, must rather than the device or element for indicating or imply meaning Must have specific orientation, with specific azimuth configuration and operation, therefore it is not intended that to limitation of the present utility model.This Outward, term " first ", " second ", " the 3rd ", " the 4th " are only used for describing purpose, and it is not intended that indicating or implying relatively heavy The property wanted.

It is as Figure 1-Figure 2 a kind of claimed non-inflatable tyre of the utility model, along tire footpath referring to Fig. 1-2 Include rubber tread 1 successively to ecto-entad, integral base rubber 2 is vulcanized with rubber tread 1, and to rubber tread 1 The elastic support 3 of supporting role, elastic support 3 includes the interior bearing ring 6 being in contact with wheel rim, is fitted with base rubber 2 Outer bearing ring 4, and the midfoot support body 5 between interior bearing ring 6 and outer bearing ring 4；Midfoot support body 5 is included circumferentially The equally distributed supporter 52 of first supporter 51 and second in direction, wherein, the second supporter 52 includes multilayer negative poisson's ratio list First layer, every layer of negative poisson's ratio elementary layer is uniformly distributed circumferentially by multiple negative poisson's ratio units and formed.Wherein, the second supporter 52 Bearing ring 6 near, the nearly outer bearing ring 4 of the first supporter, multiple negative poisson's ratio elementary layers constitute the second supporter 52 and first Support body 51 coordinates, and forms supporting body structure.

Further, referring to Fig. 3, Fig. 3 is the local radial sectional view of non-inflatable tyre of the present utility model.First support Body 51 includes the V-arrangement component 512 being distributed uniformly and circumferentially, and multiple V-arrangement components 512 are connected by the way that first end 513 is circumferential, The first end 513 of each V-arrangement component 512 is radially connected a "eight" shape component 511, the top of "eight" shape component 511 with it is outer Bearing ring 4 is connected.

With continued reference to Fig. 3, with reference to Fig. 4, Fig. 4 is the partial enlarged drawing of negative poisson's ratio unit, and negative poisson's ratio unit is by positive V groups Part 522 and the component of falling V 521 are formed by connecting by the 3rd end 523, and the negative poisson's ratio unit of every layer of negative poisson's ratio elementary layer passes through The circumferential connection in 3rd end 523, the negative poisson's ratio unit of multilayer negative poisson's ratio elementary layer is radially connected by the 4th end 524, The negative poisson's ratio elementary layer of the side of bearing ring 6 is connected by the 4th end 524 with interior bearing ring 4 near.Multiple negative poisson's ratio lists First periodic arrangement makes supporter be arranged in chess shape, can effectively carry out the transmission of automobile load on axle and tire is carried, and the structure is carried The high rigidity and intensity of supporting body structure, meets its stress deformation trend, alleviates the weight of supporter, improves tire Comfortableness.

With continued reference to Fig. 3, with reference to Fig. 4, the supporter of the second end 514 and second of V-arrangement component 512 in the first supporter 51 The 4th end 524 of the component of falling V 521 is radially connected in the negative poisson's ratio elementary layer of the 52 nearly sides of outer bearing ring 4.Above-mentioned setting can The uniform force of the first supporter is passed to each negative poisson's ratio unit of the second supporter, can effectively carry out automobile shafts and upload Lotus is transmitted and tire is carried, and the deformability of tire can be improved again and mitigates support body weight, improves the comfortableness of tire.

Referring to Fig. 4, as preferred embodiment, the positive V components 522 of negative poisson's ratio unit and the piece of the component of falling V 521 are constituted The edge that section is located inside negative poisson's ratio unit is inwardly protruding into cambered surface, the edge outwardly convex outside negative poisson's ratio unit Into cambered surface；The fragment both sides of the edge for constituting "eight" shape component 511 raise into cambered surface.Said structure can be met on a direction During forced contraction, shunk simultaneously in both direction, it is meant that negative poisson's ratio structure has compressibility higher while more difficult generation Detrusion, rigidity and intensity such a construction increases supporting body structure meet its stress deformation trend.

With continued reference to Fig. 3, as preferred embodiment, the angle of fragment of V-arrangement component 512 is constituted more than the composition group of falling V The angle of the fragment of part 521, in negative poisson's ratio unit, constitutes the angle and the composition component of falling V 521 of the fragment of positive V components 522 The angle of fragment is identical.In this structure so that the second supporter transmission internally of the structure stress of the first supporter.

With continued reference to Fig. 3, used as preferred embodiment, multilayer negative poisson's ratio elementary layer is along tire radial direction ecto-entad In multiple negative poisson's ratio units, constitute the fragment of positive V components 522 angle and the fragment for constituting the component of falling V 521 angle according to Secondary reduction.Above-mentioned setting can not only cause that the negative poisson's ratio unit of multilayer is closely arranged along tire circumferential direction, moreover it is possible to smoothly Inwardly transmitted step by step from by load, improve tire pressure-bearing and anti-deformation.

It is the non-inflatable tyre sidewall structural representation of the embodiment of the utility model one referring to Fig. 5, flexibly supports external body The sidewall that setting is connected with rubber tread, the sidewall between outer bearing ring 4 and interior bearing ring 6 includes multistage camber line structure, adjacent Camber line it is tangent two-by-two.One embodiment is the tangent camber line structure of upper-wide and lower-narrow type multistage, from outer bearing ring to interior bearing ring multistage Tangent camber line is uniform from outside to inside excessively, and this supporter sidewall structure ensures to reduce tire on the basis of the enough supportives of tire Weight simultaneously increases aesthetic property；Another embodiment is the upper and lower wide tangent structure of multistage arc, and the upper and lower wide tangent structure of multistage arc is certainly Outer bearing ring is uniformly excessive to the tangent camber line invaginating of interior bearing ring multistage, and this supporter sidewall structure ensures that tire is propped up enough Tire weight can be also reduced on the basis of support property and increase aesthetic property.

Referring to Fig. 6, Fig. 6 is the tyre surface designed arc-shaped appearance schematic diagram of the non-inflatable tyre of the embodiment of the utility model one.Rubber The top arc of tyre surface circumference section is one section of low arc of middle part two ends high or two sections of tangent arc structures.In one embodiment, rubber When the top arc of tyre surface circumference section is one section of arc structure, arcuate midway point 2-4mm high compared with two ends, three strokes and dots circles can be justified Curved line.In another embodiment, when top arc is two sections of tangent arc structures, tread is highly 2-7mm, and two sections of circular arcs are mutual Tangent, crown arc arc length is about the 60%~70% of tread length, and tire ground connection impression is presented oval or square.Above-mentioned tyre surface Designed arc-shaped appearance advantageously reduces treadwear.

It is the first draw-in groove and the second draw-in groove stereogram referring to Fig. 7 and Fig. 8, Fig. 7 and Fig. 8.The outside of outer bearing ring 4 is provided with the One draw-in groove 41.A kind of implementation method is that the axial cross section of the first draw-in groove 41 is shaped as inverted "convex" shape, the short side of inverted "convex" shape Towards tire rotating shaft, base rubber 2 with second draw-in groove 21 corresponding with the first draw-in groove 41 is provided with the faying face of outer bearing ring 4, The axial cross section of the second draw-in groove 21 is positive "convex" shaped, and the short side of positive "convex" shaped is towards tire rotating shaft.Another embodiment For the axial cross section of the first draw-in groove 41 is shaped as indent " ten " font.It is provided with and at base rubber 2 and the faying face of outer bearing ring 4 The second corresponding draw-in groove 21 of one draw-in groove 41, the axial cross section of the second draw-in groove 21 is evagination " ten " font.First draw-in groove 41 and Two draw-in groove 21 is along tire circumference equidistantly distributed.Said structure prevents tire from being supported when (60-85km/h) is travelled at a relatively high speed Body produces delamination with base rubber, strengthens base rubber and the ability of fitting of supporter, tyre surface is arrived with base rubber composite members " inlaying " On the supporter of " hard ".

The elastic support 3 of non-inflatable tyre of the present utility model is using having high intensity, high resiliency, resistance to flexion, heat-resisting The thermoplastic engineering plastic polyurethane once injection moulding of the performances such as oxidation, proportion is small, recoverable, production technology letter It is single, and possess the static state and dynamic performance requirements of pneumatic tire.Simultaneously from tire used performance is both met, proportion is met again The tyre surface of small requirement, to reduce tire weight；Optimize simultaneously rubber tread 1 and the composite members gross thickness of base rubber 2 be 15mm~ 30mm, and formulation optimization is carried out to existing tread mix, its low resistive energy of rolling is improved, it is right effectively to reduce tire drag Energy-saving and emission-reduction, reduction oil consumption are extremely advantageous, it is ensured that tire has good in the application of middle low speed passenger car and new-energy automobile Good bearing capacity and handling safety, comfortableness.

Claims (10)

1. non-inflatable tyre, rubber tread (1) is included along tire radial direction ecto-entad successively, and one is sulfided into rubber tread (1) The base rubber (2) of body, and the elastic support (3) played a supportive role to rubber tread (1), it is characterised in that resilient support Body (3) includes the interior bearing ring (6) that is in contact with wheel rim, the outer bearing ring (4) fitted with base rubber (2), and is held positioned at interior Midfoot support body (5) between pressure ring (6) and outer bearing ring (4)；Midfoot support body (5) is including what is be distributed uniformly and circumferentially First supporter (51) and the second supporter (52), wherein, the second supporter (52) includes multilayer negative poisson's ratio elementary layer, every layer Negative poisson's ratio elementary layer is uniformly distributed circumferentially by multiple negative poisson's ratio units and formed.

2. non-inflatable tyre according to claim 1, it is characterised in that the first supporter (51) is including along the circumferential direction equal The V-arrangement component (512) of even distribution, multiple V-arrangement components (512) are circumferentially connected by first end (513), each V-arrangement component (512) first end (513) is radially connected "eight" shape component (511), "eight" shape component (511) top and outer pressure-bearing Ring (4) is connected.

3. non-inflatable tyre according to claim 2, it is characterised in that negative poisson's ratio unit is by positive V components (522) and falls V components (521) are formed by connecting by the 3rd end (523), and every layer of negative poisson's ratio unit of negative poisson's ratio elementary layer passes through the 3rd End (523) circumferentially connects, and the negative poisson's ratio unit of multilayer negative poisson's ratio elementary layer is radially connected by the 4th end (524), The negative poisson's ratio elementary layer of bearing ring (6) side is connected by the 4th end (524) with interior bearing ring (6) near.

4. non-inflatable tyre according to claim 3, it is characterised in that V-arrangement component (512) in the first supporter (51) The second end (514) and the component of falling V (521) in the negative poisson's ratio elementary layer of nearly outer bearing ring (4) side of the second supporter (52) The 4th end (524) it is radially connected.

5. the non-inflatable tyre according to Claims 2 or 3, it is characterised in that constitute the positive V components of negative poisson's ratio unit (522) and the component of falling V (521) fragment be located at negative poisson's ratio unit inside edge it is inwardly protruding into cambered surface, positioned at negative Poisson Than the edge outwardly convex outside unit into cambered surface；The fragment both sides of the edge for constituting "eight" shape component (511) raise into arc Face.

6. non-inflatable tyre according to claim 3, it is characterised in that the angle for constituting the fragment of V-arrangement component (512) is big In the angle of the fragment for constituting the component of falling V (521), in negative poisson's ratio unit, constitute the fragment of positive V components (522) angle and The angle for constituting the fragment of the component of falling V (521) is identical.

7. non-inflatable tyre according to claim 3, it is characterised in that multilayer negative poisson's ratio elementary layer along tire radially by In multiple negative poisson's ratio units outside to inside, the angle and the piece for constituting the component of falling V (521) of the fragment of positive V components (522) are constituted The angle of section is sequentially reduced.

8. non-inflatable tyre according to claim 1, it is characterised in that set and rubber tyre outside elastic support (3) The connected sidewall in face (1), the sidewall between outer bearing ring (4) and interior bearing ring (6) includes multistage camber line structure, adjacent camber line It is tangent two-by-two.

9. non-inflatable tyre according to claim 1, it is characterised in that the top arc of rubber tread (1) circumference section It is one section of low arc of middle part two ends high or two sections of tangent arc structures；The top arc of rubber tread (1) circumference section is one section of arc During structure, arcuate midway point 2-4mm high compared with two ends, three strokes and dots circles can obtain circular curve；Top arc is two sections of tangent arc knots During structure, tread is highly 2-7mm.

10. the non-inflatable tyre according to any one of claim 1-4 or 6-9, it is characterised in that outer bearing ring outside sets The first draw-in groove is equipped with, the axial cross section of the first draw-in groove is shaped as inverted "convex" shape or indent " ten " font, wherein, inverted "convex" shape Short side towards tire rotating shaft；Base rubber is provided with second draw-in groove corresponding with the first draw-in groove with outer pressure-bearing ring combined face, The axial cross section of the second draw-in groove is positive "convex" shaped or evagination " ten " font, wherein, the short side of positive "convex" shaped is towards tyre revolution Axle；First draw-in groove and the second draw-in groove are along tire circumference equidistantly distributed.