CN115972820B - Non-pneumatic tire - Google Patents
Non-pneumatic tire Download PDFInfo
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- CN115972820B CN115972820B CN202211719850.8A CN202211719850A CN115972820B CN 115972820 B CN115972820 B CN 115972820B CN 202211719850 A CN202211719850 A CN 202211719850A CN 115972820 B CN115972820 B CN 115972820B
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- rotating ring
- wall
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- 230000007246 mechanism Effects 0.000 claims abstract description 54
- 239000000463 material Substances 0.000 claims description 7
- 229920001971 elastomer Polymers 0.000 claims description 4
- 229920002635 polyurethane Polymers 0.000 claims description 3
- 239000004814 polyurethane Substances 0.000 claims description 3
- 238000000034 method Methods 0.000 description 7
- 230000008569 process Effects 0.000 description 7
- 230000000694 effects Effects 0.000 description 5
- 230000009471 action Effects 0.000 description 2
- 238000013016 damping Methods 0.000 description 2
- 238000006073 displacement reaction Methods 0.000 description 2
- 230000002035 prolonged effect Effects 0.000 description 2
- 238000005096 rolling process Methods 0.000 description 2
- 239000002689 soil Substances 0.000 description 2
- 230000006978 adaptation Effects 0.000 description 1
- 230000004888 barrier function Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000003139 buffering effect Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000001125 extrusion Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 235000001968 nicotinic acid Nutrition 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 230000002441 reversible effect Effects 0.000 description 1
- 125000006850 spacer group Chemical group 0.000 description 1
Classifications
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/80—Technologies aiming to reduce greenhouse gasses emissions common to all road transportation technologies
- Y02T10/86—Optimisation of rolling resistance, e.g. weight reduction
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- Tires In General (AREA)
Abstract
The invention provides a non-pneumatic tire, which comprises a rim, a tread, an annular supporting structure, a rotating ring mechanism and a rotating ring fixing mechanism, wherein the tread is arranged on the rim; the annular supporting structures are provided with a plurality of layers, the annular supporting structures are coaxially arranged, the diameters of the annular supporting structures are sequentially increased from inside to outside, gaps are formed between the adjacent annular supporting structures for installing a rotating ring mechanism and a rotating ring fixing mechanism, and spoke structures are arranged in the annular supporting structures; the rotating ring mechanism comprises a rotating inner ring and a rotating outer ring, the rotating inner ring is fixed on the outer wall of the adjacent annular supporting structure, and the rotating outer ring is fixed on the inner wall of the adjacent annular supporting structure; the rotating ring fixing mechanism comprises a rotating ring limiting fixed block and a rotating ring fixing limiting pin. The multi-layer non-pneumatic tire provided by the invention has a rotatable structure, is convenient to disassemble, match, combine and install, and adjusts the rigidity of the tire by changing the types of spokes of each layer and the contact points among the spokes.
Description
Technical Field
The invention relates to the field of automobile tires, in particular to a non-pneumatic tire.
Background
Tires are the only components of the vehicle which are in direct contact with the road, and are used for bearing the mass of the vehicle body and buffering external impact. The tire can produce a large amount of heat in the vehicle driving process, and when being impacted by obstacles or touching sharp objects, the pneumatic tire is extremely easy to burst, so that the driving safety of the automobile is influenced. The non-pneumatic tire adopts the elastic supporting bodies with different structural forms to replace the elastic action of the pneumatic tire, reduces the vibration and impact suffered by the tire through the deformation of the elastic supporting bodies, optimizes the mechanical property of the tire, omits the links of inflating and checking the tire pressure, and solves the potential safety hazards of no puncture resistance, easy tire burst and the like of the tire.
When the vehicle runs on a hard flat road surface, the non-pneumatic tire needs to keep high rigidity, so that the running speed of the vehicle is ensured; when the vehicle is idling or traveling on a soft road, it is necessary to maintain a low rigidity so as to ensure smoothness and passability of the vehicle. The internal support body structure of the existing non-pneumatic tire is single, the tire performance difference displayed in the running process of various different road conditions is large, and the good effect of the gas in the pneumatic tire cannot be achieved. The invention provides a rotatable multi-ring layer type universal motorized non-pneumatic tire, which forms non-pneumatic tires with different structural styles by rotating each layer of annular supporting structure, so that the non-pneumatic tire can run with high maneuverability in various complex and diverse road conditions.
Disclosure of Invention
The present invention addresses the deficiencies of the prior art by providing a non-pneumatic tire.
In order to achieve the above purpose, the present invention adopts the following technical scheme:
a non-pneumatic tire includes a rim, a tread, an annular support structure, a rotating ring mechanism, and a rotating ring fixing mechanism;
the annular supporting structures are provided with a plurality of layers, the annular supporting structures are coaxially arranged, the diameters of the annular supporting structures are sequentially increased from inside to outside, gaps are formed between the adjacent annular supporting structures for installing the rotating ring mechanism and the rotating ring fixing mechanism, spoke structures are arranged in the annular supporting structures, and the spoke structures are fixed between two annular connecting bodies of the annular supporting structures; the innermost annular supporting structure is fixed on the outer wall of the rim, and the tread is fixed on the outer wall of the outermost annular supporting structure;
the rotating ring mechanism is arranged between the adjacent annular supporting structures and comprises a rotating inner ring and a rotating outer ring, the rotating inner ring is fixed on the outer wall of the innermost annular supporting structure, a plurality of rotating inner ring limiting grooves are formed in the outer surface of the rotating inner ring, the rotating outer ring is fixed on the inner wall of the outermost annular supporting structure, and a plurality of rotating outer ring limiting grooves are formed in the inner surface of the rotating outer ring; an annular groove is arranged between the rotating inner ring and the rotating outer ring for installing a rotating ring fixing mechanism;
the rotating ring fixing mechanism is arranged between the adjacent rotating inner ring and rotating outer ring, the rotating ring fixing mechanism comprises a rotating ring limiting fixed block and a rotating ring fixing limiting pin, the rotating ring limiting fixed block is detachably embedded between the rotating inner ring limiting groove and the rotating outer ring limiting groove, and the rotating ring fixing limiting pin is detachably fixed between the adjacent rotating ring limiting fixed blocks; when the non-pneumatic tire runs in a rolling way, the rotating ring fixes the limiting pin to prevent relative rotation between two adjacent layers of annular supporting structures; when the non-pneumatic tire is in steering running, the rotating ring fixes the limiting pin to prevent lateral displacement of each layer of annular supporting structure.
When the rotating ring mechanism is adjusted to a locking state, the center axis of the rotating inner ring limiting groove, the center axis of the rotating outer ring limiting groove and the center axis of the annular supporting structure are located on the same plane, the fixing block main body is embedded between the rotating inner ring limiting groove and the rotating outer ring limiting groove, and the rotating ring fixing limiting pin is embedded between two adjacent rotating ring limiting fixing blocks, namely, the annular groove between the rotating inner ring and the rotating outer ring. After the rotating ring mechanism is adjusted to a locking state, the automobile provided with the non-pneumatic tire can be started and put on the road.
When the non-pneumatic tire is required to be adjusted, the rotating ring fixing limiting pin is taken out, the sleeve is utilized to rotate the rotating ring limiting fixed block, two ends of the rotating ring fixing block are separated from the rotating outer ring limiting groove and the rotating inner ring limiting groove respectively, the rotating ring fixing block rotates to an annular groove between the rotating inner ring and the rotating outer ring, and then the relative positions of adjacent annular supporting structures are manually rotated and adjusted; taking the circle centers of the rotating inner ring and the rotating outer ring as circle centers, wherein the circle center angle between two adjacent limit grooves on the rotating inner ring and the rotating outer ring is the minimum rotatable unit of the annular supporting structure; because the diameters of the rotating inner ring and the rotating outer ring of each group are different, the number of the rotating inner ring limiting groove, the rotating outer ring limiting groove and the rotating ring limiting fixed block is not limited, and the rotatable minimum unit of the annular supporting structure is not limited.
In order to optimize the technical scheme, the specific measures adopted further comprise:
further, the rotating ring limiting fixed block is composed of a fixed block main body at the middle position, two rotating shafts fixedly connected to the front end and the rear end of the fixed block main body respectively, and rotating columns fixedly connected with the two rotating shafts respectively.
Further, two ends of the fixed block main body are semi-cylindrical; the rotating inner ring limiting groove and the rotating outer ring limiting groove are semi-circular arcs matched with semi-cylinders at two ends of the main body of the fixed block, and the sleeve is convenient to use to rotate the movable ring limiting fixed block.
Further, the thickness of each layer of annular support structure is the same.
Further, the innermost annular supporting structure is fixedly adhered to the outer wall of the rim, the tread is fixedly adhered to the outer wall of the outermost annular supporting structure, the inner rotating ring wall is fixedly adhered to the outer wall of the adjacent annular supporting structure, and the outer rotating ring wall is fixedly adhered to the inner wall of the adjacent annular supporting structure.
Further, the number of the limiting grooves of the rotating inner ring at the innermost layer is equal to that of the limiting fixed blocks of the rotating ring, the number of the limiting grooves of the rotating outer ring at the innermost layer is an integral multiple of that of the limiting grooves of the rotating inner ring at the innermost layer, and the positions of spoke contact nodes are changed by inserting the limiting fixed blocks of the rotating ring into the limiting grooves of different rotating outer rings, so that the rigidity of the tire is changed; the number of the remaining rotating inner ring limiting grooves is equal to that of the rotating outer ring limiting grooves, and the minimum rotatable angle of the annular supporting structure is determined by the central angle between every two adjacent limiting grooves.
Further, the spoke is a spoke type spoke, a round spoke or a hexagonal spoke, and can be arranged according to different road condition requirements such as a hard road surface, a soft road surface or a barrier road surface.
Further, the annular support structure is provided with 2 to 7 layers.
Further, the spoke structure, the rotating ring mechanism and the rotating ring fixing mechanism are all made of polyurethane materials.
Further, the annular inner and outer surfaces of the annular support structure and the tread are each composed of a rubber material.
The beneficial effects of the invention are as follows:
1) The invention provides a rotatable multi-ring layer type universal motor non-pneumatic tire, which comprises a plurality of layers of annular supporting structures, wherein spoke structures in the annular supporting structures can be selected according to actual performance requirements, non-pneumatic tires with different structural styles are formed after the spoke structures are matched, the positions of supporting nodes of the spoke structures are changed by rotating the annular supporting structures of all layers through a rotating ring mechanism, the rigidity of the non-pneumatic tire in all directions is regulated, and further, different mechanical properties of the non-pneumatic tire are endowed, so that the non-pneumatic tire can adapt to diversified road conditions such as hard road surfaces, soft road surfaces or obstacle road surfaces, and the universal maneuverability of the non-pneumatic tire is realized;
2) The rotatable multi-ring layer type universal motorized non-pneumatic tire provided by the invention rotates each layer of annular supporting structure through the rotating ring mechanism, so that the effect of the annular supporting structure is more similar to the elastic effect exerted by gas in the pneumatic tire, stress concentration at a certain position of the annular supporting structure is avoided, fatigue loss of the non-pneumatic tire supporting body in the repeated extrusion deformation process is reduced, and the service life of the non-pneumatic tire is prolonged;
3) The supporting structure of the rotatable multi-ring-layer type universal motorized non-pneumatic tire provided by the invention is hollow, and stones, gravel and other foreign matters enter or are adhered with a large amount of soil in the running process, so that the multi-layer ring-type supporting structure is easy to detach, and the foreign matters and the soil in the wheel cavity are convenient to clean, thereby avoiding affecting the mechanical properties of the non-pneumatic tire.
Drawings
FIG. 1 is an exploded view of the present invention;
FIG. 2 is a schematic diagram of the structure of the present invention;
FIG. 3 is a schematic view of a locking state of a rotating ring limiting fixed block;
FIG. 4 is a schematic view of a rotation state of the rotation ring limiting fixed block;
FIG. 5 is a schematic view of a structure of a rotating ring limiting and fixing block;
FIG. 6 is a cross-sectional view of a two-layer annular support structure non-pneumatic tire;
FIG. 7 is a cross-sectional view of a three-layer annular support structure non-pneumatic tire;
FIG. 8 is a cross-sectional view of the diamond-shaped spoke ring support structure rotated to a rotated state;
FIG. 9 is a cross-sectional view of the diamond-shaped spoke ring support structure rotated to a locked state;
FIG. 10 is a cross-sectional view of the web spoke ring support structure rotated to a locked state;
FIG. 11 is a cross-sectional view of the web spoke ring support structure rotated to a rotated state;
FIG. 12 is a schematic view of a non-pneumatic tire passing over a hard road surface;
FIG. 13 is a schematic view of a non-pneumatic tire passing over a soft road surface;
FIG. 14 is a schematic view of a non-pneumatic tire passing over an obstructed pavement;
wherein, 1 is annular bearing structure, 2 is the rotation inner ring, 2a is the spacing recess of rotation inner ring, 3 is the spacing fixed block of rotation ring, 31 is the axis of rotation, 32 is the spliced pole, 33 is the fixed block main part, 4 is the fixed spacer pin of rotation ring, 5 is the rotation outer ring, 5a is the spacing recess of rotation outer ring, 6 is the tread, 7 is spoke structure.
Detailed Description
As shown in fig. 1, a non-pneumatic tire includes a rim, an annular support structure 1, a rotating ring mechanism, a rotating ring fixing mechanism, and a tread 6;
as shown in fig. 6 and 7, the annular supporting structures 1 are provided with 2 or 3 layers, the thickness of each layer of annular supporting structures 1 is the same, the annular supporting structures 1 are coaxially arranged and the diameters of the annular supporting structures are sequentially increased from inside to outside, gaps are arranged between the adjacent annular supporting structures 1 for installing a rotating ring mechanism and a rotating ring fixing mechanism, as shown in fig. 2, spoke structures 7 are arranged in the annular supporting structures 1, the spoke structures 7 are fixed between two annular connecting bodies of the annular supporting structures 1, and the spoke structures 7 are spoke plate type spokes, circular spokes or hexagonal spokes; the innermost annular supporting structure 1 is fixedly adhered to the outer wall of the rim, and the tread 6 is fixedly adhered to the outer wall of the outermost annular supporting structure 1;
the rotating ring mechanism is arranged between the adjacent annular supporting structures 1 and comprises a rotating inner ring 2 and a rotating outer ring 5, the rotating inner ring 2 is fixedly adhered to the outer wall of the adjacent annular supporting structures 1, a plurality of rotating inner ring limiting grooves 2a are formed in the outer surface of the rotating inner ring 2, the rotating outer ring 5 is fixedly adhered to the inner wall of the adjacent annular supporting structures 1, and a plurality of rotating outer ring limiting grooves 5a are formed in the inner surface of the rotating outer ring 5;
the rotating ring fixing mechanism is arranged between the adjacent rotating inner ring 2 and rotating outer ring 5, the rotating ring fixing mechanism comprises a rotating ring limiting fixed block 3 and a rotating ring fixing limiting pin 4, as shown in fig. 5, the rotating ring limiting fixed block 3 is composed of a fixed block main body 33 positioned at the middle position, two rotating shafts 31 respectively fixedly connected to two ends of the fixed block main body 33 and rotating columns 32 respectively fixedly connected with the two rotating shafts 31; the rotating ring limiting fixed block 3 is detachably embedded between the rotating inner ring limiting groove 2a and the rotating outer ring limiting groove 5a, the upper end and the lower end of the fixed block main body 33 are semi-cylindrical, and the rotating inner ring limiting groove 2a and the rotating outer ring limiting groove 5a are semi-circular arcs matched with the semi-cylindrical upper end and the lower end of the fixed block main body 33; the number of the limiting grooves 2a of the inner-most rotating ring is equal to that of the limiting fixed blocks 3 of the rotating ring, and the number of the limiting grooves 5a of the outer-most rotating ring is an integral multiple of the limiting grooves 2a of the inner-most rotating ring; the number of the residual rotation inner ring limit grooves 2a is equal to that of the rotation outer ring limit grooves 5a; the rotating ring fixing limiting pins 4 are detachably fixed between the adjacent rotating ring limiting fixed blocks 3.
Specifically, as shown in fig. 1-2, a reversible multi-ring layer type universal motor non-pneumatic tire mainly comprises the following components: rim, annular support structure 1, rotating ring mechanism, rotating ring fixing mechanism and tread 6.
The annular supporting structure 1 comprises the following components: the first layer of annular supporting structure, the second layer of annular supporting structure and the third layer of annular supporting structure. The first group of rotating ring mechanisms comprises the following components: the rotary inner ring 2 and the rotary outer ring 5 are provided with annular grooves between the rotary inner ring 2 and the rotary outer ring 5, and the second group of rotary ring mechanisms and the first group of rotary ring mechanisms have the same composition. The rotating ring fixing mechanism comprises the following components: the rotating ring limiting fixed block 3 and the rotating ring fixing limiting pin 4. The first layer annular supporting structure, the second layer annular supporting structure and the third layer annular supporting structure are made of rubber materials, the annular supporting structure 1 is strip-shaped before assembly, the inner surface of the rotating inner ring 2 and the outer surface of the rotating outer ring 5 are enveloped in sequence in an end-to-end mode during assembly, and the end-to-end positions are bonded and fixed to form a circular ring. The outer wall of the rotating inner ring 2 is provided with a plurality of rotating inner ring limiting grooves 2a which are uniformly distributed around the central shaft of the rotating inner ring 2, and the central angles between every two adjacent rotating inner ring limiting grooves 2a are equal. The inner wall of the rotary outer ring 5 is provided with a plurality of rotary outer ring limiting grooves 5a which are uniformly distributed around the central shaft of the rotary outer ring 5, and the central angles between every two adjacent rotary outer ring limiting grooves 5a are equal. An annular gap is reserved between the rotating inner ring 2 and the rotating outer ring 5, so that when the rotating mechanism is in a rotating state, the annular supporting structures 1 on two adjacent sides are easy to rotate relatively; when the rotating ring mechanism is in a locking state, the rotating ring fixing mechanism is installed.
As shown in fig. 3, when the rotary ring mechanism is adjusted to the locked state, the center axis of the rotary inner ring limit groove 2a, the center axis of the rotary outer ring limit groove 5a and the center axis of the annular support structure 1 are located on the same plane, the fixed block main body 33 is embedded between the rotary inner ring limit groove 2a and the rotary outer ring limit groove 5a, and the rotary ring fixing limit pin 4 is embedded between two adjacent fixed block main bodies 33, namely, the annular groove position between the rotary inner ring 2 and the rotary outer ring 5.
As shown in fig. 4, when the rotating ring mechanism is adjusted to a rotating state, the rotating ring fixing limit pin 4 is taken out, the rotating ring limiting fixed block 3 is rotated, the two top ends of the rotating ring limiting fixed block are separated from the rotating outer ring limiting groove 5a and the rotating inner ring limiting groove 2a respectively, and the rotating ring mechanism rotates into an annular groove position between the rotating inner ring 2 and the rotating outer ring 5. The diameters of the rotating inner ring 2 and the rotating outer ring 5 of each group are different, the number of the rotating inner ring limiting grooves 2a, the rotating outer ring limiting grooves 5a and the rotating ring limiting fixed blocks 3 is not limited, the annular supporting structure 1 can rotate freely, the minimum rotating unit is not limited, after rotating to the target position, the rotating ring limiting fixed blocks 3 and the rotating ring fixing limiting pins 4 are embedded in a sufficient quantity, and the non-pneumatic tire is ensured not to move relatively during normal operation. When the non-pneumatic tire runs in a rolling way, the rotating ring fixing limiting pin 4 limits the rotating ring limiting fixed block 3 to displace, so that the adjacent two layers of annular supporting structures 1 are prevented from rotating relatively; the swivel ring-fixed stop pin 4 prevents lateral displacement of the layers of the annular support structure 1 when the non-pneumatic tire is traveling in a steering direction.
As shown in fig. 6 and 7, taking a non-pneumatic tire comprising 2 or 3 layers of annular support structures 1 as an example, the main composition is formed by sequentially superposing the annular support structures 1, the rotating ring mechanism and the rotating ring fixing mechanism. The spoke structure 7, the rotating ring mechanism and the rotating ring fixing mechanism in the annular supporting structure 1 are all made of polyurethane materials, and the annular inner and outer connecting layers and the tread 6 of the annular supporting structure 1 are made of rubber materials. The annular supporting structures 1 can be arranged according to different road condition requirements such as hard road surfaces, soft road surfaces or obstacle road surfaces, and the patterns of the spoke structures 7 of each layer of annular supporting structures 1 are not limited. The more the number of layers of the annular supporting structure 1 is, the more the rotating ring mechanisms can rotate relatively, so that the types of non-pneumatic tires with different mechanical property structures are formed, different schemes are customized according to different road conditions, and the application scene is diversified.
As shown in fig. 2, based on the bionics principle, the spoke structure 7 of the first layer of annular supporting structure is of a honeycomb hexagonal structure, the hexagons are mutually connected and supported, and the honeycomb structural carcass can deform and absorb energy due to load, so that the honeycomb structural carcass achieves a damping effect similar to that of a traditional pneumatic tire, and has higher bearing capacity; the spoke structure 7 of the second layer of annular supporting structure is of a spoke plate type, and the spoke plate type supporting structure is characterized in that the spoke plate type supporting structure is formed by a strip-shaped supporting body which surrounds an inner circle in an array manner, and the transverse, longitudinal and radial elastic properties of the spoke plate type supporting structure are well controlled; the spoke structure 7 of the third layer of annular supporting structure is a honeycomb circular structure, and when the structural density is smaller, the radial rigidity of the circular structure honeycomb structure is larger, and the bearing capacity is strong.
As shown in fig. 8 and 9, the spoke structures 7 of the two-layer annular supporting structure 1 are diamond-shaped and are formed by intersecting a plurality of spokes, so that the spoke structures have good bearing performance in the transverse direction, the longitudinal direction and the radial direction, and simultaneously have good damping capacity and strong rigidity.
The non-pneumatic tire can be correspondingly adjusted according to the running condition of the vehicle, so that the optimal rigidity effect of the non-pneumatic tire is realized, and the working condition of the tire is analyzed according to the specific running condition:
taking the non-pneumatic tire patterns of fig. 10 and 11 as an example, when the vehicle runs on a hard road surface (fig. 12), the annular supporting structures 1 of all layers of the non-pneumatic tire are rotated, so that the supporting nodes of the outer wall of the annular supporting structure of the first layer are in one-to-one correspondence with the supporting nodes of the inner wall of the annular supporting structure of the second layer, the stress is sequentially transferred layer by layer from outside to inside and dispersed to the spoke structures 7 of all layers, the non-pneumatic tire is in a state with higher rigidity, the spoke structures 7 have stronger supportability and smaller sinking amount, the running resistance of the vehicle in the running process is smaller, the vehicle can run at a high speed, and the running stability of the vehicle is improved.
As shown in fig. 13, under a soft road surface, the annular supporting structure 1 is rotated to enable the spoke structures 7 to be distributed in a staggered manner, the supporting nodes of the outer wall of the annular supporting structure of the first layer are positioned between the two supporting nodes of the inner wall of the annular supporting structure of the second layer, the deformation quantity of the spoke structures 7 is increased, the overall rigidity of the non-pneumatic tire is reduced, the sinking quantity is increased compared with that of a hard road surface, the contact area between the tire and the ground is increased, and the pressure is reduced, so that the wheel body is prevented from sinking into the soft road surface, and the trafficability of a vehicle is improved
As shown in fig. 14, under an obstacle road surface, the rotating annular supporting structure 1 positions the outer wall supporting nodes of the first layer of annular supporting structure at a certain position between the two supporting nodes of the inner wall of the second layer of annular supporting structure, so that the non-pneumatic tire is in a state with lower rigidity, the tire can generate larger resilience force between the tire and the road surface in the process of crossing the obstacle, the buffer performance is enhanced, and the comfort of the vehicle is ensured.
According to the invention, the multi-directional rigidity of the non-pneumatic tire is adjusted by rotating the annular supporting structures 1 of each layer of the non-pneumatic tire, so that the optimal mechanical property of the tire is realized, and the non-pneumatic tire can respectively run in complex and various road conditions such as hard road surfaces, soft road surfaces or obstacle road surfaces with high mobility.
In addition, in the vehicle driving process, the stress is mainly concentrated in a certain place of the elastic support body in the non-pneumatic tire, the annular support structure 1 is repeatedly extruded by the action of force, fatigue loss is easy to occur, and the stress concentrated on the support structure at a certain place is dispersed by rotating the annular support structure 1 of each layer of the non-pneumatic tire, so that the fatigue loss is reduced, and the service life of the non-pneumatic tire is prolonged.
It should be noted that the terms like "upper", "lower", "left", "right", "front", "rear", and the like are also used for descriptive purposes only and are not intended to limit the scope of the invention in which the invention may be practiced, but rather the relative relationship of the terms may be altered or modified without materially altering the teachings of the invention.
The above is only a preferred embodiment of the present invention, and the protection scope of the present invention is not limited to the above examples, and all technical solutions belonging to the concept of the present invention belong to the protection scope of the present invention. It should be noted that modifications and adaptations to the invention without departing from the principles thereof are intended to be within the scope of the invention as set forth in the following claims.
Claims (10)
1. A non-pneumatic tyre comprising a rim and a tread (6), characterized in that it further comprises an annular support structure (1), a rotating ring mechanism and a rotating ring fixing mechanism;
the annular supporting structures (1) are provided with a plurality of layers, the annular supporting structures (1) are coaxially arranged and the diameters of the layers are sequentially increased from inside to outside, gaps are formed between the adjacent annular supporting structures (1) for installing a rotating ring mechanism and a rotating ring fixing mechanism, and the annular supporting structures (1) are provided with spoke structures (7); the innermost annular supporting structure (1) is fixed on the outer wall of the rim, and the tread (6) is fixed on the outer wall of the outermost annular supporting structure (1);
the rotating ring mechanism is arranged between adjacent annular supporting structures (1), the rotating ring mechanism comprises a rotating inner ring (2) and a rotating outer ring (5), the rotating inner ring (2) is fixed on the outer wall of the adjacent annular supporting structures (1), a plurality of rotating inner ring limiting grooves (2 a) are formed in the outer surface of the rotating inner ring (2), the rotating outer ring (5) is fixed on the inner wall of the adjacent annular supporting structures (1), and a plurality of rotating outer ring limiting grooves (5 a) are formed in the inner surface of the rotating outer ring (5);
the rotating ring fixing mechanism is arranged between the adjacent rotating inner ring (2) and the rotating outer ring (5), the rotating ring fixing mechanism comprises a plurality of rotating ring limiting fixing blocks (3) and rotating ring fixing limiting pins (4), the rotating ring limiting fixing blocks (3) are detachably embedded between the rotating inner ring limiting grooves (2 a) and the rotating outer ring limiting grooves (5 a), and the rotating ring fixing limiting pins (4) are detachably fixed between the adjacent rotating ring limiting fixing blocks (3).
2. A non-pneumatic tire according to claim 1, wherein the rotation ring limit fixing block (3) is composed of a fixing block main body (33) located at a middle position, two rotation shafts (31) fixedly connected to front and rear ends of the fixing block main body (33) respectively, and rotation columns (32) fixedly connected to the two rotation shafts (31) respectively.
3. A non-pneumatic tire according to claim 2, wherein the upper and lower ends of said anchor block body (33) are semi-cylindrical; the rotary inner ring limiting groove (2 a) and the rotary outer ring limiting groove (5 a) are semi-circular arcs matched with the semi-cylinders at the upper end and the lower end of the fixed block main body (33).
4. A non-pneumatic tyre as claimed in claim 1, wherein each layer of annular support structure (1) has the same thickness.
5. A non-pneumatic tyre as claimed in claim 1, wherein the innermost annular support structure (1) is adhesively secured to the rim outer wall, the tread (6) is adhesively secured to the outermost annular support structure (1) outer wall, the inner rotating ring (2) inner wall is adhesively secured to the adjacent annular support structure (1) outer wall, and the outer rotating ring (5) outer wall is adhesively secured to the adjacent annular support structure (1) inner wall.
6. A non-pneumatic tire according to claim 1, wherein the number of said inner-most rotational ring limit grooves (2 a) is equal to the number of said rotational ring limit fixed blocks (3), and the number of said outer-most rotational ring limit grooves (5 a) is an integer multiple of the number of said inner-most rotational ring limit grooves (2 a); the number of the residual rotating inner ring limiting grooves (2 a) is equal to that of the rotating outer ring limiting grooves (5 a).
7. A non-pneumatic tyre as claimed in claim 1, wherein said spoke structure (7) is a web spoke, a circular spoke or a hexagonal spoke.
8. A non-pneumatic tyre as claimed in claim 1, wherein said toroidal support (1) is provided with 2-7 layers.
9. A non-pneumatic tyre as claimed in claim 1, wherein said spoke structure (7), said rotary ring mechanism and said rotary ring fixing mechanism are each composed of polyurethane material.
10. A non-pneumatic tyre as claimed in claim 1, wherein the annular inner and outer skin layers of the annular support structure (1) and the tread (6) are each composed of a rubber material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211719850.8A CN115972820B (en) | 2022-12-30 | 2022-12-30 | Non-pneumatic tire |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211719850.8A CN115972820B (en) | 2022-12-30 | 2022-12-30 | Non-pneumatic tire |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN115972820A CN115972820A (en) | 2023-04-18 |
| CN115972820B true CN115972820B (en) | 2024-04-12 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202211719850.8A Active CN115972820B (en) | 2022-12-30 | 2022-12-30 | Non-pneumatic tire |
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| Country | Link |
|---|---|
| CN (1) | CN115972820B (en) |
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|---|---|---|---|---|
| JP2006117057A (en) * | 2004-10-20 | 2006-05-11 | Sumitomo Rubber Ind Ltd | Resilient wheel |
| CN102490554A (en) * | 2012-01-04 | 2012-06-13 | 朱国昌 | Flexible tire |
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| WO2016089480A1 (en) * | 2014-12-03 | 2016-06-09 | Bridgestone Americas Tire Operations, Llc | Non-pneumatic tire |
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| CN115972820A (en) | 2023-04-18 |
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