CN114161881A - Electric friction tyre with multiple elastic supports - Google Patents

Electric friction tyre with multiple elastic supports Download PDF

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Publication number
CN114161881A
CN114161881A CN202010950268.7A CN202010950268A CN114161881A CN 114161881 A CN114161881 A CN 114161881A CN 202010950268 A CN202010950268 A CN 202010950268A CN 114161881 A CN114161881 A CN 114161881A
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CN
China
Prior art keywords
layer
ellipsoid
ellipsoids
tread
ellipsoid layer
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CN202010950268.7A
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Chinese (zh)
Inventor
余前孙
陈大德
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Shenzhen Daorui Tire Co ltd
Original Assignee
Shenzhen Daorui Tire Co ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Shenzhen Daorui Tire Co ltd filed Critical Shenzhen Daorui Tire Co ltd
Priority to CN202010950268.7A priority Critical patent/CN114161881A/en
Priority to PCT/CN2021/077386 priority patent/WO2022052422A1/en
Publication of CN114161881A publication Critical patent/CN114161881A/en
Pending legal-status Critical Current

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    • BPERFORMING OPERATIONS; TRANSPORTING
    • B60VEHICLES IN GENERAL
    • B60CVEHICLE TYRES; TYRE INFLATION; TYRE CHANGING; CONNECTING VALVES TO INFLATABLE ELASTIC BODIES IN GENERAL; DEVICES OR ARRANGEMENTS RELATED TO TYRES
    • B60C7/00Non-inflatable or solid tyres
    • B60C7/10Non-inflatable or solid tyres characterised by means for increasing resiliency
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B60VEHICLES IN GENERAL
    • B60CVEHICLE TYRES; TYRE INFLATION; TYRE CHANGING; CONNECTING VALVES TO INFLATABLE ELASTIC BODIES IN GENERAL; DEVICES OR ARRANGEMENTS RELATED TO TYRES
    • B60C1/00Tyres characterised by the chemical composition or the physical arrangement or mixture of the composition
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B60VEHICLES IN GENERAL
    • B60CVEHICLE TYRES; TYRE INFLATION; TYRE CHANGING; CONNECTING VALVES TO INFLATABLE ELASTIC BODIES IN GENERAL; DEVICES OR ARRANGEMENTS RELATED TO TYRES
    • B60C7/00Non-inflatable or solid tyres
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B60VEHICLES IN GENERAL
    • B60CVEHICLE TYRES; TYRE INFLATION; TYRE CHANGING; CONNECTING VALVES TO INFLATABLE ELASTIC BODIES IN GENERAL; DEVICES OR ARRANGEMENTS RELATED TO TYRES
    • B60C1/00Tyres characterised by the chemical composition or the physical arrangement or mixture of the composition
    • B60C2001/0091Compositions of non-inflatable or solid tyres

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Tires In General (AREA)

Abstract

The invention discloses a multiple elastic support electric friction vehicle tire, which comprises a tire tread, a first ellipsoid layer, a second ellipsoid layer and a third ellipsoid layer which are sequentially connected from outside to inside, wherein the first ellipsoid layer, the second ellipsoid layer and the third ellipsoid layer are formed by connecting hollow ellipsoids around the axle center of the tire tread, adjacent ellipsoids in the same ellipsoid layer are intersected and communicated at the intersected positions, the ellipsoids in the first ellipsoid layer and the second ellipsoid layer are intersected in an opposite position and communicated at the intersected positions, the ellipsoids in the second ellipsoid layer and the third ellipsoid layer are intersected in a staggered manner and communicated at the intersected positions, the intersected positions of two ellipsoids in the third ellipsoid layer and the ellipsoids in the adjacent second ellipsoid layer protrude inwards and are connected to form reinforcing ribs, and the tire tread is connected with the surface of the first ellipsoid layer. According to the invention, through structural optimization, a good yield mechanism and high support strength are formed, and the balance of high strength and high elasticity is realized.

Description

Electric friction tyre with multiple elastic supports
Technical Field
The invention relates to a non-pneumatic tire, in particular to an electric friction tire with multiple elastic supports.
Background
The present non-pneumatic tire is widely applied to automobiles, electric motorcycles and bicycles, while the conventional non-pneumatic tire is generally a solid rubber tire, and has the advantages of large load, good wear resistance and long service life, but the solid tire inevitably brings the problems of weight and comfort, and in order to improve the problems of the conventional non-pneumatic tire, the present practice is to adopt a hollow non-pneumatic tire or install an inflation device outside the non-pneumatic tire, and the hollow non-pneumatic tire reduces the weight of the tire, but often has insufficient support strength, and the solid non-pneumatic tire is additionally provided with an inflation device, although the elastic performance is increased, the problem of excessive weight of the tire is not solved, and in addition, the problems existing in the conventional pneumatic tire cannot be avoided.
Therefore, there is a need for a non-pneumatic tire that can reduce the weight of the tire and has both high elasticity and high support strength.
Disclosure of Invention
The invention aims to solve the technical problem of providing an electric motorcycle tire with multiple elastic supports, which is formed by connecting hollow ellipsoids, saves materials, and has high comfort and high support hardness.
In order to solve the technical problems, the technical scheme of the invention is that the multi-elastic support electric friction vehicle tire comprises a tire tread, a first ellipsoid layer, a second ellipsoid layer and a third ellipsoid layer which are sequentially connected from outside to inside, wherein the first ellipsoid layer, the second ellipsoid layer and the third ellipsoid layer are formed by connecting hollow ellipsoids around the axle center of the tire tread, adjacent ellipsoids in the same ellipsoid layer are intersected and communicated at the intersected positions, the ellipsoids in the first ellipsoid layer and the second ellipsoid layer are intersected in an opposite position and communicated at the intersected positions, the ellipsoids in the second ellipsoid layer and the third ellipsoid layer are intersected in a staggered manner and communicated at the intersected positions, the long axes of the ellipsoids in the first ellipsoid layer, the second ellipsoid layer and the third ellipsoid layer are all parallel to the axial line of the tire tread, the lengths of the long axes of the ellipsoids in the first ellipsoid layer and the second ellipsoid layer are all greater than the length of the long axis of the ellipsoid in the third ellipsoid layer, the intersection positions of two ellipsoids in the third ellipsoid layer and the ellipsoids in the adjacent second ellipsoid layer protrude inwards and are connected to form reinforcing ribs, and the tread is connected with the surface of the first ellipsoid layer.
More preferably, the major axis of the ellipsoids in the third ellipsoidal layer is at least 1/2 times the length of the major axis of the ellipsoids in the second ellipsoidal layer.
Furthermore, it is preferable that the ellipsoids intersected in the para-position or the dislocation are in smooth transition at the intersection position.
Further preferably, the tread is provided with tread grooves; still further preferably, the tread grooves comprise transverse grooves, cross-shaped grooves and oblique grooves, the tread corresponding to the intersecting positions of the adjacent ellipsoids in the first ellipsoid layer is provided with the transverse grooves arranged at intervals along the tread arc line, and the number of the transverse grooves is three; a cross-shaped groove is arranged between adjacent transverse grooves close to the edge of the tread, and crossed oblique grooves are arranged between the transverse grooves which are positioned in the middle of the arc line of the tread and oppositely arranged; still further preferably, the groove depth of the lateral groove near the edge is tapered from a position near the tread edge.
More preferably, the thicknesses of the first ellipsoidal layer, the second ellipsoidal layer, and the third ellipsoidal layer are sequentially reduced.
Still more preferably, the materials of the tread, the first ellipsoidal layer, the second ellipsoidal layer and the third ellipsoidal layer are all high-molecular polymers with Shore hardness of 55A-60D, and still more preferably, the high-molecular polymers are polyurethane.
More preferably, the third ellipsoidal layer is provided with a through hole; preferably, each ellipsoid on the third ellipsoid layer is provided with a through hole; still more preferably, the through hole has an elliptical shape, and a center position of the through hole is opposite to an intersection position of adjacent ellipsoids in the second ellipsoid layer.
More preferably, the tread, the first ellipsoidal layer, the second ellipsoidal layer, and the third ellipsoidal layer are integrated.
Further preferably, the number of ellipsoids in the ellipsoid layer is 7 to 120.
By adopting the technical scheme, through the counterpoint intersection of the first ellipsoid layer and the second ellipsoid layer, the force can be directly and quickly transmitted to the first ellipsoid layer and the second ellipsoid layer when the tire surface is stressed, the dislocation intersection of the second ellipsoid layer and the third ellipsoid layer can further disperse and transmit the stress, a good elastic yield mechanism is formed through the structural arrangement, meanwhile, the intersection positions of two ellipsoids in the third ellipsoid layer and the ellipsoids in the adjacent second ellipsoid layer are inwards protruded and connected to form reinforcing ribs, the internal crosslinking is further strengthened in the hollow structure formed by the first ellipsoid layer, the second ellipsoid layer and the third ellipsoid layer, and the supporting strength is improved, through the structural optimization, the good yield mechanism and the high supporting strength are really formed, the weight of high strength and high elasticity is realized, and the invention is compared with the traditional inflation-free solid tire, the light weight is really realized.
Drawings
FIG. 1 is a front view of an embodiment of an electric motorcycle tire with multiple elastic supports;
FIG. 2 is a cross-sectional view taken at location A-A of FIG. 1;
FIG. 3 is a side view of an embodiment of an electric motorcycle tire with multiple elastic supports;
FIG. 4 is a cross-sectional view taken at location B-B of FIG. 3;
FIG. 5 is a schematic diagram of the intersection position of two ellipsoids being smoothly transited.
In the figure, 1-tread, 11-transverse groove, 12-oblique groove, 13-cross groove, 2-first ellipsoid layer, 3-second ellipsoid layer, 4-third ellipsoid layer, 41-heat dissipation hole and 5-reinforcing rib.
Detailed Description
The following further describes embodiments of the present invention with reference to the drawings. It should be noted that the description of the embodiments is provided to help understanding of the present invention, but the present invention is not limited thereto. In addition, the technical features involved in the embodiments of the present invention described below may be combined with each other as long as they do not conflict with each other.
As shown in fig. 1, 2 and 4, the electric friction vehicle tire with multiple elastic supports comprises a tread 1, a first ellipsoid layer 2, a second ellipsoid layer 3 and a third ellipsoid layer 4 which are sequentially connected from outside to inside, wherein the first ellipsoid layer 2, the second ellipsoid layer 3 and the third ellipsoid layer 4 are formed by connecting hollow ellipsoids around the axis of the tread, adjacent ellipsoids in the same ellipsoid layer are intersected and completely communicated at the intersection position, and the completely communicated meaning that when two ellipsoids are intersected, a through hole is formed on the edge line of the intersection position, and the intersection part is removed. The ellipsoids in the first ellipsoid layer 2 and the second ellipsoid layer 3 are crossed in a contraposition way and are communicated at the crossed position, and the contraposition crossing means that the centers of the ellipsoids at the opposite positions in the first ellipsoid layer 2 and the second ellipsoid layer 3 are positioned on the same straight line with the axle center of the tread. The ellipsoids in the second ellipsoid layer 3 and the third ellipsoid layer 4 intersect in a staggered manner and pass through at the intersection position, that is, one ellipsoid in the third ellipsoid layer 4 and two ellipsoids in the second ellipsoid layer 3 intersect respectively, and the intersection position also passes through completely. The major axes of the ellipsoids in the first ellipsoid layer 2, the second ellipsoid layer 3 and the third ellipsoid layer 4 are all parallel to the axial line of the tread 1, i.e. the ellipsoids intersect at the surface position corresponding to the minor axis, but not at the surface of the ellipsoid corresponding to the major axis. When the ellipsoids intersect, the intersecting positions are all completely communicated, so that the first ellipsoid layer 2, the second ellipsoid layer 3 and the third ellipsoid layer 4 intersect to form a cross-linking space with a hollow interior, and in order to further enhance the supporting strength of the cross-linking space, the intersection positions of two ellipsoids in the third ellipsoid layer 4 and the ellipsoids in the adjacent second ellipsoid layer 3 protrude inwards and are connected to form a reinforcing rib 5.
As shown in fig. 2, the major axis lengths of the ellipsoids in the first ellipsoidal layer 2 and the second ellipsoidal layer 3 are both longer than the major axis length of the ellipsoid in the third ellipsoidal layer 4, and the third ellipsoidal layer 4 at this time functions as a hub connection portion and also as a transmission point of the received force. As the wheel hub connecting part, the length of the major axis of the third ellipsoidal layer 4 can be designed according to the requirement of the wheel hub connecting position, and as the stress transmission point, the connecting position of the third ellipsoidal layer 4 and the second ellipsoidal layer 3 is provided with the reinforcing rib 5, so that the supporting strength can be enhanced, the cross-linked structure in the whole tire is enhanced, and the interior of the tire is more stable. Of course, the length of the major axis of the ellipsoids in the third ellipsoidal layer 4 should not be too short, at least 1/2 which is the length of the major axis of the ellipsoids in the second ellipsoidal layer 3, and thus the third ellipsoidal layer 4 is hard and cannot provide proper buffering.
As shown in figure 5, in order to further enhance the connection strength and the supporting strength between the adjacent ellipsoids, the smooth transition treatment can be performed at the intersection position of the aligned or staggered and intersected ellipsoids, and whether the smooth transition is positioned on the inner surface or the outer surface of the ellipsoid, when the two ellipsoids are connected, the inner surface and the outer surface of the connected position are subjected to the smooth transition treatment, namely, the acute angle or the obtuse angle of the connected position is directly treated into an arc line, so that even if the stress is too large in a short time, the smooth transition treatment of the connection position can ensure that the connection position cannot be broken.
The tread 1 of this embodiment is connected to the outer surface of the first ellipsoidal layer 2, where the outer surface is defined by the axis of the tread 1 as the center point, and the outer surface of the first ellipsoidal layer 2 away from the axis of the tread 1 is the outer surface. The tread 1 is provided with grooves, and the specific matching of the grooves arranged here is not strictly limited as long as the grooves are beneficial to skid resistance, reduce the hardness of the tread 1 and enhance the comfort of the tread 1. As shown in fig. 3, the grooves disposed on the tread 1 in this embodiment include transverse grooves 11, oblique grooves 12, and cross-shaped grooves 13, where the transverse grooves 11 are disposed on the tread 1 corresponding to the intersection positions of the adjacent ellipsoids in the first ellipsoid layer 2, and the transverse grooves 11 are disposed at intervals along an arc of the tread 1, the arc of the tread 1 is a surface arc of a cross section formed by cutting the tread 1 by a plane on which an axial line of the tread 1 is located, the number of the transverse grooves 11 is three, and the three transverse grooves 11 are a row, and a plurality of rows of the transverse grooves 11 are distributed on the tread 1 at equal intervals. And a cross-shaped groove 13 is arranged between the adjacent transverse grooves 11 which are close to the edges of the tread 1 and on the same side, and the cross-shaped grooves 13 are symmetrically arranged because the edges of the tread 1 are opposite. And crossed oblique grooves 12 are further arranged between two adjacent rows of transverse grooves 11, the crossed oblique grooves 12 are positioned between transverse grooves 11 in the middle position in the two rows of transverse grooves 11, and the crossed grooves 13 take the crossing points of the crossed oblique grooves 12 as the symmetry centers. Since the transverse groove 11 is just positioned on the arc line of the tread 1 corresponding to the intersection position of two adjacent ellipsoids in the first ellipsoid layer 2, and the position on the arc line of the tread 1 close to the edge is just the concave position where the two ellipsoids intersect, the thickness of the tread 1 is larger here, so that the tread 1 can be completely attached to the groove, and because the thickness of the tread 1 is larger here, the hardness is also larger, so that the comfort is still further improved when the tread contacts the ground. The transverse grooves 11 which can be located there are therefore designed such that the groove depth starts close to the edge and runs along the groove and tapers off. The depth near the edge is larger, which is equal to the thinning of the tread 1, and is beneficial to the elastic deformation of the part after being stressed.
In the process of contacting the ground, the friction time of the tire is long, so the heat generation is large, in order to dissipate the heat, a through hole 41 can be arranged on the third ellipsoid layer 4 close to the axle center of the tread 1, when the tire is extruded and elastically deformed, the through hole 41 can discharge the heat from the through hole 41, the set position of the through hole 41 is not required, but the position most beneficial to discharge the hot gas is that the center of the through hole 41 is opposite to the intersection position of two adjacent ellipsoids in the second ellipsoid layer 3.
As a further improvement in the elasticity and the supporting strength of the ellipsoidal layer, the wall thicknesses of the first ellipsoidal layer 2, the second ellipsoidal layer 3, and the third ellipsoidal layer 4 can be made smaller in this order.
In order to ensure the hardness and wear resistance of the tire, the materials of the tread 1, the first ellipsoidal layer 2, the second ellipsoidal layer 3 and the third ellipsoidal layer 4 are all high molecular polymers with shore hardness of 55A-60D, while the embodiment selects polyurethane materials, polyurethane has good wear resistance on one hand and good heat resistance on the other hand, of course, the polyurethane mentioned in the embodiment is only used as a specific example and is not limited to only polyurethane, and as long as the hardness of the polyurethane meets the requirement, basically all high molecular polymer materials can be used as the material of the tire for the cart of the invention.
The electric friction tyre with multiple elastic supports of the embodiment can be integrally molded by injection molding to form an integrated structure. The structure is more stable in the driving process and more durable.
In addition, the number of the ellipsoids in the ellipsoid layer is not only one shown in the figure, but the number of the ellipsoids in the ellipsoid layer can be 7-120, i.e. 7, 20, 50, 60, 80, 100, 120, etc., and is not listed here, and even if the ellipsoid is composed of different numbers, the ellipsoid number can still meet the index requirement of the electric motorcycle tire as long as the ellipsoid number is within the limited range.
The embodiments of the present invention have been described in detail with reference to the accompanying drawings, but the present invention is not limited to the described embodiments. It will be apparent to those skilled in the art that various changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, and the scope of protection is still within the scope of the invention.

Claims (10)

1. The utility model provides a multiple elastic support's electric power car tire which characterized in that: the tire tread comprises a tread, a first ellipsoid layer, a second ellipsoid layer and a third ellipsoid layer which are sequentially connected from outside to inside, wherein the first ellipsoid layer, the second ellipsoid layer and the third ellipsoid layer are formed by connecting hollow ellipsoids around the axis of the tread, adjacent ellipsoids in the same ellipsoid layer are intersected and communicated at the intersection position, the ellipsoids in the first ellipsoid layer and the second ellipsoid layer are intersected in an opposite position and communicated at the intersection position, the ellipsoids in the second ellipsoid layer and the third ellipsoid layer are intersected in a staggered manner and communicated at the intersection position, the long axes of the ellipsoids in the first ellipsoid layer, the second ellipsoid layer and the third ellipsoid layer are parallel to the axial line of the tread, the lengths of the long axes of the ellipsoids in the first ellipsoid layer and the second ellipsoid layer are greater than the length of the long axis of the ellipsoid in the third ellipsoid layer, and the intersection position of two ellipsoids in the third ellipsoid layer and the adjacent ellipsoids in the second ellipsoid layer are inward convex And the tyre surface is connected with the surface of the first ellipsoidal layer.
2. The multiple-resilient-support electric motorcycle tire of claim 1, wherein: the major axis of the ellipsoids in the third ellipsoid layer is at least 1/2 the length of the major axis of the ellipsoids in the second ellipsoid layer.
3. The multiple-resilient-support electric motorcycle tire of claim 1, wherein: and the intersected positions of the aligned or staggered ellipsoids are in smooth transition.
4. The multiple-resilient-support electric motorcycle tire of claim 1, wherein: the tread is provided with tread grooves.
5. The multiple-resilient-support electric motorcycle tire of claim 4, wherein: the tread grooves comprise transverse grooves, cross-shaped grooves and oblique grooves, the corresponding tread at the intersecting position of the adjacent ellipsoids in the first ellipsoid layer is provided with the transverse grooves arranged at intervals along the arc line of the tread, and the number of the transverse grooves is three; a cruciform groove is disposed between adjacent lateral grooves near the tread edges, and intersecting oblique grooves are disposed between oppositely disposed lateral grooves at the mid-position of the tread arc.
6. The multiple-resilient-support electric motorcycle tire of claim 5, wherein: the groove depth of the lateral groove near the edge becomes gradually smaller from a position near the tread edge.
7. The multiple-resilient-support electric motorcycle tire of claim 1, wherein: the wall thicknesses of the first ellipsoidal layer, the second ellipsoidal layer, and the third ellipsoidal layer are successively reduced.
8. The multiple-resilient-support electric motorcycle tire of claim 1, wherein: the materials of the tread, the first ellipsoidal layer, the second ellipsoidal layer and the third ellipsoidal layer are all high polymer with Shore hardness of 55A-60D.
9. The multiple-resilient-support electric motorcycle tire of claim 1, wherein: and the third ellipsoidal layer is provided with a through hole.
10. A multiple-resilient-support electric motorcycle tire according to claim 9, wherein: and each ellipsoid on the third ellipsoid layer is provided with a through hole.
CN202010950268.7A 2020-09-11 2020-09-11 Electric friction tyre with multiple elastic supports Pending CN114161881A (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
CN202010950268.7A CN114161881A (en) 2020-09-11 2020-09-11 Electric friction tyre with multiple elastic supports
PCT/CN2021/077386 WO2022052422A1 (en) 2020-09-11 2021-02-23 Electric motorcycle tire having multiple elastic support structure

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202010950268.7A CN114161881A (en) 2020-09-11 2020-09-11 Electric friction tyre with multiple elastic supports

Publications (1)

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CN114161881A true CN114161881A (en) 2022-03-11

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WO (1) WO2022052422A1 (en)

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