CN108081872A - Non-inflatable tyre based on indent hexagon negative poisson's ratio support construction - Google Patents
Non-inflatable tyre based on indent hexagon negative poisson's ratio support construction Download PDFInfo
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- CN108081872A CN108081872A CN201810068301.6A CN201810068301A CN108081872A CN 108081872 A CN108081872 A CN 108081872A CN 201810068301 A CN201810068301 A CN 201810068301A CN 108081872 A CN108081872 A CN 108081872A
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- Prior art keywords
- born
- same parents
- negative poisson
- ratio
- arm
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Links
- 238000010276 construction Methods 0.000 title claims abstract description 45
- 230000002708 enhancing effect Effects 0.000 claims abstract description 36
- 239000000463 material Substances 0.000 claims abstract description 23
- 229920005830 Polyurethane Foam Polymers 0.000 claims abstract description 5
- 239000011496 polyurethane foam Substances 0.000 claims abstract description 5
- 238000009826 distribution Methods 0.000 claims abstract description 4
- 238000005452 bending Methods 0.000 claims description 18
- 125000004122 cyclic group Chemical group 0.000 claims description 12
- 210000000078 claw Anatomy 0.000 claims description 11
- 229920001971 elastomer Polymers 0.000 claims description 9
- 239000005060 rubber Substances 0.000 claims description 9
- 239000004677 Nylon Substances 0.000 claims description 4
- 238000005187 foaming Methods 0.000 claims description 4
- 239000011159 matrix material Substances 0.000 claims description 4
- 229920001778 nylon Polymers 0.000 claims description 4
- 229920002635 polyurethane Polymers 0.000 claims description 4
- 239000004814 polyurethane Substances 0.000 claims description 4
- 235000008331 Pinus X rigitaeda Nutrition 0.000 claims description 3
- 235000011613 Pinus brutia Nutrition 0.000 claims description 3
- 241000018646 Pinus brutia Species 0.000 claims description 3
- 239000004744 fabric Substances 0.000 claims description 3
- 229910052751 metal Inorganic materials 0.000 claims description 3
- 239000002184 metal Substances 0.000 claims description 3
- 229920000642 polymer Polymers 0.000 claims description 3
- 230000002787 reinforcement Effects 0.000 claims description 3
- 241000397426 Centroberyx lineatus Species 0.000 claims description 2
- 239000000919 ceramic Substances 0.000 claims description 2
- 230000015572 biosynthetic process Effects 0.000 claims 1
- 238000004026 adhesive bonding Methods 0.000 abstract description 6
- 239000011148 porous material Substances 0.000 abstract 1
- 210000004027 cell Anatomy 0.000 description 60
- 238000010586 diagram Methods 0.000 description 13
- 210000002421 cell wall Anatomy 0.000 description 4
- 230000035939 shock Effects 0.000 description 4
- 230000008602 contraction Effects 0.000 description 3
- 238000012423 maintenance Methods 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 238000000465 moulding Methods 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 2
- 210000000452 mid-foot Anatomy 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- 238000005096 rolling process Methods 0.000 description 2
- 229910000838 Al alloy Inorganic materials 0.000 description 1
- 239000000899 Gutta-Percha Substances 0.000 description 1
- 240000000342 Palaquium gutta Species 0.000 description 1
- 241000245665 Taraxacum Species 0.000 description 1
- 239000000956 alloy Substances 0.000 description 1
- 230000001413 cellular effect Effects 0.000 description 1
- 229910010293 ceramic material Inorganic materials 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 239000013536 elastomeric material Substances 0.000 description 1
- 239000002657 fibrous material Substances 0.000 description 1
- 229920000588 gutta-percha Polymers 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000012856 packing Methods 0.000 description 1
- 230000000737 periodic effect Effects 0.000 description 1
- 229910052573 porcelain Inorganic materials 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 230000003319 supportive effect Effects 0.000 description 1
- 210000002435 tendon Anatomy 0.000 description 1
Classifications
-
- 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
- B60C1/00—Tyres characterised by the chemical composition or the physical arrangement or mixture of the composition
-
- 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
- B60C11/00—Tyre tread bands; Tread patterns; Anti-skid inserts
- B60C11/01—Shape of the shoulders between tread and sidewall, e.g. rounded, stepped or cantilevered
-
- 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
- B60C1/00—Tyres characterised by the chemical composition or the physical arrangement or mixture of the composition
- B60C2001/0091—Compositions of non-inflatable or solid tyres
-
- 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
- B60C2200/00—Tyres specially adapted for particular applications
- B60C2200/04—Tyres specially adapted for particular applications for road vehicles, e.g. passenger cars
Abstract
The invention discloses a kind of non-inflatable tyres based on indent hexagon negative poisson's ratio support construction, radially ecto-entad includes tyre surface, carcass, negative poisson's ratio support construction successively, it is integrated on the inside of tyre surface with gluing on the outside of carcass, carcass is the polyurethane foam material with negative poisson's ratio characteristic；Negative poisson's ratio support construction includes the more born of the same parents' supporters of negative poisson's ratio of outer enhancing ring, interior enhancing ring and the inside and outside enhancing ring of connection；More born of the same parents' supporters are to be connected with each other by multiple indent hexagon single cell structures in concentric annular distribution by connecting born of the same parents' arm, wherein each indent hexagon single cell structure is formed by the orthogonal nested encryptions of concave hexagon shaped cell structure.The non-inflatable tyre of the present invention is by combining negative poisson's ratio porous material and Multi cell structure, make non-inflatable tyre in the radial and axial traveling load and lateral stability for all possessing negative poisson's ratio, rigidity and intensity stand under load enhancing characteristic, being effectively improved non-inflatable tyre.
Description
Technical field
It is more particularly to a kind of to be based on indent hexagon negative poisson's ratio support construction the present invention relates to automobile tire technical field
Non-inflatable tyre.
Background technology
The now widely used pneumatic tire with the inner tube of a tyre is vehicle ensure during operation is sailed travelling, ride comfort with
And the comprehensive solution of comfort, but there is the security risk easily blown out, it is necessary to periodic maintenance in pneumatic tire.In addition, inflation
Tire is unable to reach preferable attachment state in braking, for make up resulting vehicle brake defect need it is another install additional ABS,
The electronic control systems such as ESP add Vehicular system complexity and integral vehicle cost.Non-inflatable tyre relies on it in security, surely
The advantage of qualitative, load and adhesion etc., has been increasingly becoming the important technology trend of tyre industry, has been subject to production firm
With the extensive concern of researcher.
CN206306739U discloses a kind of non-inflatable tyre, including rubber tread, is integrated with rubber tread gluing
Base rubber and outside are connected with rubber tread, inside and the elastic support that plays a supportive role of wheel rim connection, and supporter is from outer
To it is interior be outer bearing ring, midfoot support body and interior bearing ring successively, the supporter is by circumferential equally distributed first supporter
It is formed with the second supporter, wherein the first supporter is formed by connecting by multiple V-arrangement components, the second supporter is by positive V components and V
The negative poisson's ratio unit that component is formed by connecting is uniformly distributed circumferentially composition.But play the role of the midfoot support of core support
Body is mostly fabricated using rubber elastomeric material, can not provide enough support stiffness and intensity, and through structure meeting
So that wheel generates larger aerodynamic noise when high speed is rotated due to air-flow flows through supporter inner surface.
CN102529583B discloses the ultra-light-weight non-inflatable tyre structure based on negative poisson's ratio structure, including a rotation
Turn central shaft, one group of concentric annular object being made of negative poisson's ratio unit structure cell around center axis rotation, each negative poisson's ratio list
The component nesting that first structure cell forms negative poisson's ratio structure by one group forms.The negative poisson's ratio structure is by the first V-arrangement for being pressurized
Second V-arrangement minor structure (tendon) of structure (support) and tension is formed by connecting.It can be with placing clamp among every two layers of concentric annular object
Layer material or packing material.One layer can be covered outside outermost coil unit structure cell and is suitble to the material touched with ground, to form
Complete tire.But negative poisson's ratio structure described in the patent only radially provides Negative poisson's ratio in tire, can not ensure tire
Lateral rigidity and intensity so that non-inflatable tyre lateral stability deficiency.In addition, between negative poisson's ratio cyclic structure and ground
One layer of contact resistance material is provided only with, road shocks suffered by tire will be transferred directly to cyclic structure in the process of moving, make structure
Significant shock is generated, influences the ride performance of vehicle.
The content of the invention
It is an object of the invention to provide a kind of non-inflatable tyre based on indent hexagon negative poisson's ratio support construction, with
Significantly improve the load and stability of tire in Negative poisson's ratio radially and laterally by means of it, while tire stable structure,
Anti-seismic performance is good, and geometry-property relationship of negative poisson's ratio Multi cell structure also makes new non-inflatable tyre possess excellent function
Navigation designing characteristic.
Realize the object of the invention technical solution be：It is a kind of based on the non-of indent hexagon negative poisson's ratio support construction
Pneumatic tire, radially ecto-entad is successively including tyre surface, carcass and negative poisson's ratio support construction；The tyre surface inside and carcass
Outside gluing is integrated, and the carcass is made of the polyurethane foam material with negative poisson's ratio characteristic；
The negative poisson's ratio support construction includes, with clamping the outer enhancing ring being connected on the inside of carcass, with rim for automobile wheel being connected
The more born of the same parents' supporters of negative poisson's ratio of interior enhancing ring and the inside and outside enhancing ring of connection；The more born of the same parents' supporters of negative poisson's ratio are by more
A indent hexagon single cell structure in concentric annular distribution is connected with each other by connecting born of the same parents' arm, each indent hexagon list
Born of the same parents' structure is formed by the orthogonal nested encryptions of concave hexagon shaped cell structure.
Compared with prior art, the present invention its remarkable advantage is：
(1) non-inflatable tyre of the invention, the more born of the same parents' branch of indent hexagon negative poisson's ratio being distributed by using concentric annular
Support structure makes tire radially and laterally possess Negative poisson's ratio；Negative poisson's ratio support construction is when bearing radial load, meeting
To loaded area local contraction, structure equivalent strength and rigidity are improved, improves the load-carrying properties of tire；Support construction it is lateral
Negative poisson's ratio can then improve the lateral stability of tire in the process of moving；(2) non-inflatable tyre of the present invention
Carcass is that the polyurethane obtained by two steps foaming is used to cast as basis material, is isotropic negative poisson's ratio
Material further improves the load and stability of non-inflatable tyre；Meanwhile negative poisson's ratio carcass have good impact resistance and
Shock resistance helps to improve the ride performance of vehicle；(3) negative poisson's ratio carcass and it is outer enhancing ring between by claw type structure with
It is adapted to groove and clamps connection, enhance the bonding strength of side ring surface and the outer outer side ring surface of enhancing ring in carcass, significantly improve wheel
The security of tire avoids the knocking over risk of tire during running at high speed；Meanwhile it is reduced using detachable carcass non-
The replacement difficulty and maintenance cost of pneumatic tire；(4) cross section of the tyre surface circumferencial direction of non-inflatable tyre of the present invention
Using arch design, the wherein top circular arc of cross section is the tangent moulding of multistage arc, and thickness is slightly below in tyre surface at the tire shoulder of both sides
Heart area thickness can reduce tire tread wear, can also improve tire drainage, promoted tire on wet-skid road surface when driving
Earth-grasping force.
Description of the drawings
Fig. 1 is the non-inflatable tyre structure based on indent hexagon negative poisson's ratio support construction of first embodiment of the invention
Schematic diagram.
Fig. 2 is the indent hexagon negative poisson's ratio single cell structure schematic diagram of first embodiment of the invention.
Fig. 3 is the negative poisson's ratio support construction schematic diagram of first embodiment of the invention.
Fig. 4 is the tyre surface circumferential direction sectional schematic diagram of first embodiment of the invention.
Fig. 5 is the tyre surface of first embodiment of the invention, carcass and the outer circumferential sectional schematic diagram for enhancing ring and connecting.
Fig. 6 is the indent hexagon negative poisson's ratio single cell structure schematic diagram of second embodiment of the invention.
Fig. 7 is the negative poisson's ratio support construction schematic diagram of second embodiment of the invention.
Specific embodiment
A kind of non-inflatable tyre based on indent hexagon negative poisson's ratio support construction, radially ecto-entad include successively
Tyre surface 1, carcass 2 and negative poisson's ratio support construction；1 inside of the tyre surface is integrated with 2 outside gluing of carcass, the carcass 2 by
Polyurethane foam material with negative poisson's ratio characteristic is made；
The negative poisson's ratio support construction includes clamping the outer enhancing ring 31 being connected with 2 inside of carcass, with rim for automobile wheel phase
The more born of the same parents' supporters 33 of negative poisson's ratio of interior enhancing ring 32 even and the inside and outside enhancing ring of connection；The more born of the same parents' supports of negative poisson's ratio
Body 33 is to be connected with each other by multiple indent hexagon single cell structures 331 in concentric annular distribution by connecting born of the same parents' arm 332,
Each indent hexagon single cell structure 331 is formed by the orthogonal nested encryptions of concave hexagon shaped cell structure.
Further, the symmetrical swallowtail shape of each indent hexagon shaped cell structure, the isometric vertical edge in two, outside
To support born of the same parents' arm 334, length H, the isometric bevel edge in inside four is bending born of the same parents arm 333, length L, supports born of the same parents' arm 334 and bending
Angle between born of the same parents' arm 333 is θ, θ<90 °, the length relation between support born of the same parents arm 334 and bending born of the same parents arm 333 meets formula H>
2·Cosθ·L；Two indent hexagons are orthogonal thereto to arrange and intersects at two interior concave points 335, forms a complete indent six
Side shape single cell structure 331.
Further, the indent hexagon single cell structure 331 is connected with each other radial through connection born of the same parents' arm 332, in circle
Circumferential direction is connected with rotation direction of principal axis by common support born of the same parents arm 334, has periodical unit cell knot so as to be formed in three directions
The more born of the same parents' supporters 33 of negative poisson's ratio of structure.The more born of the same parents' supporters 33 of negative poisson's ratio single cell structure 331 in the circle of circumferencial direction one
Quantity be known as periodicity t, be known as number of turns c in the periodical unit cell quantity of radial direction, rotation direction of principal axis periodical unit cell number
Amount is known as number of plies l, and the periodicities of more born of the same parents' supporters 33, the number of turns and the number of plies are poor according to the different performance requirement of tire
It is different.
Further, the concave hexagon shaped cell structure that the bending born of the same parents arm 333 and support born of the same parents arm 334 are formed is upper
Within angle is all higher than 180 ° at Lower pit, and initial radial spacing is more than the one of 334 length of support born of the same parents arm between two interior concave points 335
Half.
Further, the bending born of the same parents arm 333, support born of the same parents arm 334 and connection born of the same parents arm 332 are uniform beam or variable cross-section
Beam, cross section are circular or rectangle.
Further, the material of the bending born of the same parents arm 333, support born of the same parents arm 334 and connection born of the same parents arm 332 is metal, rubber, pottery
Porcelain, fabric reinforcement, nylon or polymer.
Further, in each circle single cell structure 331 geometric identity, difference circle between single cell structure dimensioning
The very little performance requirement different according to tire and difference.
Further, the outer enhancing ring 31 is cyclic structure, and the groove being recessed inwardly is equipped on the outside of circumferential section
311, inside 33 outmost turns single cell structures of born of the same parents' supporter more with the negative poisson's ratio are connected；The interior enhancing ring 32 is tied to be annular
Structure, circumferential section are matrix, and section outside 33 innermost circle single cell structures of born of the same parents' supporter more with the negative poisson's ratio are connected, section
Inside is connected with rim for automobile wheel.
Further, the carcass 2 is cyclic structure, and wherein 2 inside of carcass is two claw type support constructions 21；Two claw type branch
Support structure 21 is clamped by the groove 311 of claw and outer enhancing ring 31 so that the carcass 2 is connected with the outer enhancing ring 31.
Further, the carcass 2 is cast using the polyurethane obtained by two steps foaming as basis material.
The cross section of 1 circumferencial direction of tyre surface uses arch design, and the wherein top circular arc of cross section is multistage arc phase
Moulding is cut, thickness is less than tyre surface central area thickness at the tire shoulder of both sides；Tyre surface 1 is using the wear-resisting material for being suitble to contact with ground
As basis material, it is processed by rolling process.
The present invention is described in further detail with reference to the accompanying drawings and examples.
Embodiment 1
As shown in Figure 1, for the present invention is based on the non-inflatable tyre structural representations of indent hexagon negative poisson's ratio support construction
Figure.Radially ecto-entad includes tyre surface 1, carcass 2, negative poisson's ratio support construction to non-inflatable tyre successively.1 inside of tyre surface
It is integrated with 2 outside gluing of carcass.The carcass 2 is made of the polyurethane foam material with negative poisson's ratio characteristic.It is described negative
The outer enhancing ring 31 that Poisson's ratio support construction includes with clamping is connected on the inside of carcass 2, the interior enhancing ring 32 being connected with rim for automobile wheel,
And the more born of the same parents' supporters 33 of negative poisson's ratio of the inside and outside enhancing ring of connection.More born of the same parents' supporters are to be distributed by multiple in concentric annular
Indent hexagon single cell structure 331 be connected with each other by connecting born of the same parents' arm 332, wherein each indent hexagon single cell structure
331 are formed by the orthogonal nested encryptions of concave hexagon shaped cell structure.Wherein, more 33 outmost turns of born of the same parents' supporter of negative poisson's ratio
Cell element is connected with side ring surface in outer enhancing ring 31, and innermost circle cell element is connected with 32 outer side ring surface of interior enhancing ring.
Fig. 2 is indent hexagon negative poisson's ratio single cell structure schematic diagram.The indent hexagon single cell structure 331 is by 8
The concave hexagon shaped cell structure for bending born of the same parents' arm 333 and 4 334 compositions of support born of the same parents arm is orthogonal embedding in two interior concave points 335
Set is formed by connecting.To ensure negative poisson's ratio characteristic, the concave hexagon that the bending born of the same parents arm 333 and support born of the same parents arm 334 are formed
Cellular construction within angle at upper Lower pit may be the same or different, but having to be larger than 180 ° makes hexagon meet indent spy
Property.Meanwhile it needs to ensure certain radial spacing between two interior concave points 335.Within angle is at upper Lower pit in the present embodiment
210 °, interior 335 radial spacing of concave point is 15mm.The bending born of the same parents arm 333 and support born of the same parents arm 334 can be uniform beams, also may be used
To be non-uniform beam, cross section can be circular or rectangle.The material of the bending born of the same parents arm 333 and support born of the same parents arm 334 can be with
Be it is identical can not also be same, born of the same parents' arm raw material be metal, rubber, ceramics, fabric reinforcement, nylon or polymer.This implementation
The square uniform beam made of measuring body aluminum alloy materials of born of the same parents' arm 333 is bent in example, support born of the same parents arm 334 is the nylon of tension
Square uniform beam made of material.
Fig. 3 is the negative poisson's ratio support construction schematic diagram of the present embodiment.Indent hexagon single cell structure 331 is in circumferencial direction
It is connected with each other by the support cell wall 334 for sharing both sides, forms the negative poisson's ratio Multi cell structure of an individual pen.Multi-turn negative poisson's ratio
Multi cell structure is radially being arranged radially, and the upper Lower pit 335 of adjacent turn is connected by connecting born of the same parents' arm 332, forms a list
The negative poisson's ratio Multi cell structure of layer.Multilayer negative poisson's ratio Multi cell structure in the support cell wall 334 axially through shared both sides each other
It is connected, forms the complete more born of the same parents' supporters 33 of negative poisson's ratio.The more born of the same parents' supporters 33 of negative poisson's ratio are in circumferencial direction one
The quantity of single cell structure 331 is known as periodicity t in circle, is known as number of turns c in the periodical unit cell quantity of radial direction, in rotation direction of principal axis
Periodical unit cell quantity be known as number of plies l, the periodicities of more born of the same parents' supporters 33, the number of turns are with the number of plies according to the different property of tire
It can demand and difference.In addition, in each circle single cell structure 331 geometric identity, single cell structure between difference circle
Physical dimension according to the different performance requirement of tire and difference.Periodicity t=12, number of turns c=4, number of plies l in the present embodiment
=2, the physical dimension of single cell structure radially gradually increase from inside to outside between difference is enclosed.Outer enhancing ring described in the present embodiment
31 be with certain thickness cyclic structure, and the groove 311 being recessed inwardly, inside and the negative pool are equipped on the outside of circumferential section
Pine is connected than more 33 outmost turns single cell structures of born of the same parents' supporter.The interior enhancing ring 32 be with certain thickness cyclic structure,
Circumferential section is matrix, and section outside 33 innermost circle single cell structures of born of the same parents' supporter more with the negative poisson's ratio are connected, on the inside of section
It is connected with rim for automobile wheel.Negative poisson's ratio support construction can make structure etc. when bearing radial load to loaded area local contraction
It imitates strength and stiffness to improve, improves the load-carrying properties of tire.The lateral Negative poisson's ratio of support construction can then improve tire and exist
Lateral stability during traveling.
Fig. 4 is tyre surface circumferential direction sectional schematic diagram.The cross section of 1 circumferencial direction of tyre surface uses arch design, wherein cross section
Top circular arc for the tangent moulding of multistage arc, thickness is less than tyre surface central area thickness at the tire shoulder of both sides.Tire in first embodiment
Face central area uses segmental arc of the radius for R2Segmental arc of the radius for R1 is used at the tire shoulder of both sides Center
Segmental arc and tire shoulder segmental arc each are tangent with B, C point.The suitable wear-resisting material such as Taraxacum rubber contacted with ground of tyre surface use,
Gutta percha is processed into as basis material by rolling process.Tyre surface central area can reduce small load using camber line design
When treadwear, improve heavy load when contact area, improve tire adhesion property.Circular arc tire shoulder can improve tire draining
Property, the ponding allowed under tire is thrown out of faster, and then promotes earth-grasping force of the tire on wet-skid road surface.
Fig. 5 is tyre surface of the present invention, carcass and the outer circumferential sectional schematic diagram for enhancing ring and connecting.Carcass 2 is with certain thickness
The cyclic structure of degree, wherein 2 outside of carcass are integrated with 1 inside gluing of tyre surface.1 inside of carcass is two claw type support constructions 21,
The claw 211 of protrusion is respectively equipped in the both sides of the edge of two claw type support constructions 21.Carcass 2 passes through claw 211 and the outer increasing
The groove 311 of strong ring 31 clamps so that the carcass 2 is connected with the outer enhancing ring 31, enhances carcass 2 and outer enhancing ring 31
Bonding strength, significantly improve the security of tire.Meanwhile detachable connection mode also reduces non-inflatable tyre
Replace difficulty and maintenance cost.Carcass 2 is cast using the polyurethane obtained by two steps foaming as basis material, is
Isotropic negative poisson's ratio material further improves the load and stability of non-inflatable tyre.Meanwhile negative poisson's ratio carcass
There are good impact resistance and shock resistance, help to improve the ride performance of vehicle.
Embodiment 2
Fig. 6 is the indent hexagon negative poisson's ratio single cell structure schematic diagram of the embodiment of the present invention 2.The indent hexagon list
The concave hexagon shaped cell structure that born of the same parents' structure 331 is made of 8 bending born of the same parents arms 333 and 4 support born of the same parents arms 334 is in two
335 orthogonal nested encryptions of concave point form.To ensure negative poisson's ratio characteristic, what the bending born of the same parents arm 333 and support born of the same parents arm 334 were formed
Concave hexagon shaped cell structure within angle at upper Lower pit may be the same or different, but has to be larger than 180 ° and make hexagon
Meet indent characteristic.Meanwhile it needs to ensure certain radial spacing between two interior concave points 335.It is gone up in the present embodiment at concave point
Angle is 200 °, and within angle is 190 ° at upper concave point, and interior 335 radial spacing of concave point is 10mm.It is measuring body to bend born of the same parents' arm 333
Circular uniform beam made of ceramic material, support born of the same parents arm 334 are circular uniform beam made of the fibrous material of tension.
Fig. 7 is the negative poisson's ratio support construction schematic diagram of the present embodiment.The indent hexagon single cell structure 331 is in circumference
Direction is connected with each other by sharing the support cell wall 334 of both sides, forms the negative poisson's ratio Multi cell structure of an individual pen.Multi-turn bears pool
Pine is radially being arranged radially than Multi cell structure, and the upper Lower pit 335 of adjacent turn is connected by connecting born of the same parents' arm 332, forms one
The negative poisson's ratio Multi cell structure of a individual layer.Multilayer negative poisson's ratio Multi cell structure is in the support cell wall 334 axially through shared both sides
It is connected with each other, forms the complete more born of the same parents' supporters 33 of negative poisson's ratio.The more born of the same parents' supporters 33 of negative poisson's ratio are in circumference side
Into a circle, the quantity of single cell structure 331 is known as periodicity t, is known as number of turns c in the periodical unit cell quantity of radial direction, in rotation axis
The periodical unit cell quantity in direction is known as number of plies l, and periodicity, the number of turns and the number of plies of more born of the same parents' supporters 33 are according to tire difference
Performance requirement and difference.In addition, in each circle single cell structure 331 geometric identity, difference circle between unit cell knot
The physical dimension of structure according to the different performance requirement of tire and difference.Periodicity t=24, number of turns c=2 in the present embodiment,
Number of plies l=4, the physical dimension of single cell structure radially gradually increase from inside to outside between difference is enclosed.It is described it is outer enhancing ring 31 be
With certain thickness cyclic structure, the groove 311 being recessed inwardly, inside and the negative poisson's ratio are equipped on the outside of circumferential section
More 33 outmost turns single cell structures of born of the same parents' supporter are connected.The interior enhancing ring 32 is with certain thickness cyclic structure, circumferential direction
Section is matrix, and section outside 33 innermost circle single cell structures of born of the same parents' supporter more with the negative poisson's ratio are connected, section inside and vehicle
Wheel wheel rim is connected.Negative poisson's ratio support construction can make structure equivalent strong when bearing radial load to loaded area local contraction
Degree and rigidity improve, and improve the load-carrying properties of tire.The lateral Negative poisson's ratio of support construction can then improve tire and travel
Lateral stability in the process.
Claims (10)
1. a kind of non-inflatable tyre based on indent hexagon negative poisson's ratio support construction, which is characterized in that radially by extroversion
Inside include tyre surface (1), carcass (2) and negative poisson's ratio support construction successively；It is glued with carcass (2) outside on the inside of the tyre surface (1)
It is integrated, the carcass (2) is made of the polyurethane foam material with negative poisson's ratio characteristic；
The negative poisson's ratio support construction is included with clamping the outer enhancing ring (31) being connected on the inside of carcass (2), with rim for automobile wheel phase
Interior enhancing ring (32) even and the more born of the same parents' supporters (33) of negative poisson's ratio of the inside and outside enhancing ring of connection；The more born of the same parents of negative poisson's ratio
Supporter (33) is mutual by connecting born of the same parents' arm (332) by multiple indent hexagon single cell structures (331) in concentric annular distribution
It is formed by connecting, each indent hexagon single cell structure (331) is formed by the orthogonal nested encryptions of concave hexagon shaped cell structure.
2. the non-inflatable tyre according to claim 1 based on indent hexagon negative poisson's ratio support construction, feature exist
In the symmetrical swallowtail shape of each indent hexagon shaped cell structure, the isometric vertical edge in two, outside is support born of the same parents' arm
(334), length H, the isometric bevel edge in inside four are bending born of the same parents' arm (333), length L, support born of the same parents' arm (334) and bending born of the same parents' arm
(333) angle between is θ, θ<90 °, the length relation between support born of the same parents' arm (334) and bending born of the same parents' arm (333) meets formula H>
2·Cosθ·L；Two indent hexagons are orthogonal thereto to arrange and intersects at two interior concave points (335), forms a complete indent
Hexagon single cell structure (331).
3. the non-inflatable tyre according to claim 2 based on indent hexagon negative poisson's ratio support construction, feature exist
In the indent hexagon single cell structure (331) is connected with each other radial through connection born of the same parents' arm (332), in circumferencial direction and rotation
Rotor shaft direction is connected by common support born of the same parents arm (334), has the negative pool of periodical single cell structure so as to be formed in three directions
Pine is than more born of the same parents' supporters (33).
4. the non-inflatable tyre according to claim 3 based on indent hexagon negative poisson's ratio support construction, feature exist
In, a concave hexagon shaped cell structure of bending born of the same parents' arm (333) and support born of the same parents' arm (334) formation is at the upper Lower pit
Angle is all higher than 180 °, and initial radial spacing is more than the half for supporting born of the same parents' arm (334) length between two interior concave points (335).
5. the non-inflatable tyre based on indent hexagon negative poisson's ratio support construction according to claim 2,3 or 4, special
Sign is that bending born of the same parents' arm (333) supports born of the same parents' arm (334) and connects born of the same parents' arm (332) as uniform beam or non-uniform beam,
Cross section is circular or rectangle.
6. the non-inflatable tyre based on indent hexagon negative poisson's ratio support construction according to claim 2,3 or 4, special
Sign is, the material of bending born of the same parents' arm (333), support born of the same parents' arm (334) and connection born of the same parents' arm (332) be metal, rubber, ceramics,
Fabric reinforcement, nylon or polymer.
7. the non-inflatable tyre according to claim 3 based on indent hexagon negative poisson's ratio support construction, feature exist
In the geometric identity of single cell structure (331) in each circle.
8. the non-inflatable tyre based on indent hexagon negative poisson's ratio support construction according to claim 1,2,3 or 4,
It is characterized in that, the outer enhancing ring (31) is cyclic structure, and the groove (311) being recessed inwardly is equipped on the outside of circumferential section, interior
Side born of the same parents' supporter (33) outmost turns single cell structures more with the negative poisson's ratio are connected；The interior enhancing ring (32) is cyclic structure,
Its circumferential section is matrix, and section outside born of the same parents' supporter (33) innermost circle single cell structures more with the negative poisson's ratio are connected, section
Inside is connected with rim for automobile wheel.
9. the non-inflatable tyre according to claim 8 based on indent hexagon negative poisson's ratio support construction, feature exist
In the carcass (2) is cyclic structure, is led on the inside of carcass (2) for two claw type support constructions (21), two claw type support constructions (21)
It crosses claw and the groove (311) of outer enhancing ring (31) clamps so that the carcass (2) is connected with the outer enhancing ring (31).
10. the non-inflatable tyre according to claim 9 based on indent hexagon negative poisson's ratio support construction, feature exist
In the carcass (2) is cast using the polyurethane obtained by two steps foaming as basis material.
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| CN201810068301.6A CN108081872B (en) | 2018-01-24 | 2018-01-24 | Non-pneumatic tire based on concave hexagonal negative poisson ratio supporting structure |
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| CN108081872B CN108081872B (en) | 2024-05-03 |
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| CN108859619A (en) * | 2018-07-10 | 2018-11-23 | 哈尔滨商业大学 | A kind of Autmobile tire safety device and its parameter setting method |
| CN109807310A (en) * | 2019-01-14 | 2019-05-28 | 南京航空航天大学 | Model casting preparation method with negative poisson's ratio characteristic open celled foam aluminum material |
| WO2021120624A1 (en) * | 2019-12-20 | 2021-06-24 | 北京工业大学 | Mars tire having shape-memory alloy lattice structure |
| CN113468665A (en) * | 2021-07-02 | 2021-10-01 | 南京英田光学工程股份有限公司 | Three-dimensional impact-resistant body with negative Poisson ratio characteristic and design method thereof |
| CN115030303A (en) * | 2022-06-20 | 2022-09-09 | 东北大学 | Internal-locking assembled three-dimensional reentry honeycomb type negative poisson ratio three-dimensional grid |
| CN116168784A (en) * | 2023-02-28 | 2023-05-26 | 哈尔滨工业大学 | Negative poisson ratio structural design method for self-similar hierarchical assembly |
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| CN115030303B (en) * | 2022-06-20 | 2023-03-10 | 东北大学 | Internal-locking assembled three-dimensional reentry honeycomb type negative poisson ratio three-dimensional grid |
| CN116168784A (en) * | 2023-02-28 | 2023-05-26 | 哈尔滨工业大学 | Negative poisson ratio structural design method for self-similar hierarchical assembly |
| CN116168784B (en) * | 2023-02-28 | 2023-08-29 | 哈尔滨工业大学 | Negative poisson ratio structural design method for self-similar hierarchical assembly |
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