CN211869080U - Non-inflatable wheel based on negative Poisson ratio structure - Google Patents
Non-inflatable wheel based on negative Poisson ratio structure Download PDFInfo
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- CN211869080U CN211869080U CN202020346833.4U CN202020346833U CN211869080U CN 211869080 U CN211869080 U CN 211869080U CN 202020346833 U CN202020346833 U CN 202020346833U CN 211869080 U CN211869080 U CN 211869080U
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- negative poisson
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- poisson ratio
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Abstract
The utility model provides a non-inflatable wheel based on negative poisson ratio structure, including wheel hub, negative poisson ratio supporter and tyre tread. The negative poisson ratio supporting body is arranged on the outer side of the hub in a surrounding mode, and the outer tire surface is arranged on the outer side of the negative poisson ratio supporting body in a surrounding mode. The hub adopts a flat-bottom rim, the spoke and the mounting hole are the same as those of the conventional hub, the negative poisson ratio support body has elastic deformation capacity, the outer tread adopts low rolling resistance rubber, and the tread has patterns for increasing friction force. The technical scheme of the utility model adopt the negative poisson ratio supporter to replace the pneumatic tire part, can play the supporting role, can satisfy the requirement that the energy was inhaled in the damping again, reduced the whole quality of wheel moreover, guaranteed the ride comfort of car, simple structure is convenient for make.
Description
Technical Field
The utility model belongs to the wheel field, concretely relates to non-inflatable wheel based on negative poisson's ratio structure.
Background
At present, pneumatic tires on the market are rubber-sealed air with pressure, when the air is compressed, air molecules collide with the wall of a container more violently, and the pneumatic tires are easily stimulated by sharp objects and are easy to burst. Therefore, the non-pneumatic tire has come to be produced based on the consideration of safety performance, and the non-pneumatic tire has the advantages of maintenance-free and explosion-free compared with the pneumatic tire by utilizing the material and the structure of the tire to realize the functions of supporting and buffering.
At present, the non-pneumatic tires on the market are mainly of two types, one type is a rubber solid tire, the production history of the non-pneumatic tire has been over one hundred years, but the limitation is obvious, and the tire body is heavy, poor in elasticity and large in rolling resistance, and is suitable for low-speed heavy-load vehicles. Another is a wheel with an elastically deformable structural support, tween, inc, michelin, france and terrainamer, inc, by Polaris, usa, are representative products, but are expensive and cannot be mass produced.
Compared with the traditional positive poisson ratio structure, the negative poisson ratio structure can contract along the vertical direction of pressure when being pressed; when pulled, it expands in the vertical direction of the pressure. The material is completely opposite to the traditional material, so that the material has strong compression resistance and impact resistance and excellent mechanical property.
SUMMERY OF THE UTILITY MODEL
To the technical problem of above-mentioned current wheel, the utility model provides a non-inflatable wheel based on negative poisson ratio structure, the utility model discloses a non-inflatable wheel is by the supporter of the negative poisson ratio constitutional unit that has elastic deformation as the wheel for the wheel not only has very strong holding power, can bear great deformation simultaneously, guarantees the ride comfort of vehicle driving.
In order to achieve the above object, the present invention is realized according to the following technical solution:
specifically, the utility model provides a non-pneumatic tire based on negative poisson ratio structure, it includes wheel hub, negative poisson ratio supporter and tread, negative poisson ratio supporter encircles and installs in the outside of wheel hub, the tread encircles and installs in the outside of negative poisson ratio supporter;
the hub is a flat-bottom rim, and a positioning hole for mounting the negative poisson ratio support body is formed in the outer side of the flat-bottom rim;
the section of the negative Poisson ratio support body is two trapezoids connected together, a tightening belt is arranged outside the negative Poisson ratio support body, the negative Poisson ratio support body comprises one or more layers of support bodies, each layer of support body comprises a plurality of support units, the support units of each layer of support body are uniformly arranged on the outer surface of the hub, each support unit comprises a rigid support and an elastic element, the rigid support comprises two first support plates, two second support plates and a rotating shaft, the first ends of the first support plates are connected with the outer tread surface through the rotating shaft, the second ends of the first support plates are connected with the first ends of the second support plates through the rotating shaft, the second ends of the second support plates are fixed on the outer surface of the hub through the rotating shaft, and the two first support plates and the two second support plates are respectively and symmetrically installed, a plurality of elastic elements are uniformly arranged between the first ends of the two first supporting plates, grooves for containing the elastic elements are uniformly arranged at the first end parts of the first supporting plates, and the elastic elements are installed by means of rotating shafts;
the outer tread is made of low rolling resistance rubber, and the surface of the outer tread is provided with patterns for increasing contact friction.
Preferably, the number of the supporting units is set as needed.
Preferably, the material of the resilient element and the tightening strap is steel wire, rubber, nylon, resin or plastic.
Preferably, the first supporting plate and the second supporting plate are both of an integral hollow plate type structure, the cross section of the integral hollow plate type structure is U-shaped, and two end parts of the plate type structure are respectively provided with a groove.
Preferably, the first supporting plate and the second supporting plate are split structures formed by welding two sheet structures together, and grooves are uniformly formed in two ends of each sheet structure.
Preferably, the number of the tightening belts is two, and the two tightening belts are respectively arranged on the front side and the rear side of the negative poisson's ratio support body.
Preferably, the positioning holes are uniformly provided with a plurality of groups, each group of positioning holes is provided with two rows, and each two rows of positioning holes are provided with one supporting unit.
Preferably, the first support plate and the second support plate are steel plates or other hard plates.
Compared with the prior art, the utility model, have following advantage:
the utility model discloses a negative poisson ratio bearing structure replaces pneumatic tire part, can play the supporting role, can satisfy the requirement that the damping absorbed energy again, has reduced the whole quality of wheel moreover, has guaranteed the ride comfort of car, simple structure, the manufacturing of being convenient for.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.
Fig. 1 is a schematic perspective view of the present invention;
fig. 2 is a schematic view of a hub of the present invention;
FIG. 3 is a schematic view of a negative Poisson ratio support of the present invention;
FIG. 4 is a front view of the negative Poisson ratio support of the present invention;
FIG. 5 is an overall exploded view of the present invention;
FIG. 6 is a unit diagram of the support body with negative Poisson's ratio according to the present invention;
FIG. 7 is a front view of the unit of the support with negative Poisson's ratio of the present invention;
FIG. 8 is an exploded view of the negative Poisson ratio support unit of the present invention;
FIG. 9 is an exploded view of a negative Poisson's ratio support of the present invention; and
FIG. 10 is a schematic view of the installation of the negative Poisson ratio support of the present invention;
wherein some of the reference numbers are as follows:
1-hub, 11-mounting hole, 2-negative poisson's ratio support, 21-unit support plate, 22-elastic element, 23-rotating shaft, 24-tightening belt and 3-external tread.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention.
As shown in fig. 1, the utility model provides a novel non-inflatable wheel based on negative poisson ratio structure, including wheel hub 1, negative poisson ratio supporter 2 and tread 3. A negative poisson's ratio support body 2 is arranged on the outside of the hub 1 and a tread 3 is arranged outside the negative poisson's ratio support body 2. The negative Poisson ratio supporting structure is adopted to replace a pneumatic tire part, so that the supporting effect can be achieved, the requirements of vibration reduction and energy absorption can be met, the overall quality of the wheel is reduced, the smoothness of the automobile is guaranteed, the structure is simple, and the manufacturing is convenient.
As shown in fig. 2, the hub 1 of the non-pneumatic wheel is a flat-bottomed rim, and the spokes and the wheel mounting holes are the same as those of the conventional aluminum alloy hub, and will not be separately described. The surface of the wheel rim is added with evenly arranged mounting positioning holes 11 of the support body with the negative Poisson ratio. The negative Poisson ratio support body is positioned by the positioning hole 11 and then is installed on the outer surface of the hub 1, so that quick installation can be realized, and the use is very convenient.
As shown in fig. 3-9, the negative poisson's ratio support body 2 is installed in the circumferential direction of the negative poisson's ratio support unit shown in fig. 6 as shown in fig. 3, a plurality of support units are uniformly installed in a circumferential shape, and the number of layers of the support units can be determined according to specific needs. Each support unit is composed of a unit support plate 21, a rotating shaft 23 and an elastic element 22, the outer side of the whole support unit is pressed by two tightening belts 24, and the effect of mounting on the hub 1 is shown in fig. 5.
As shown in fig. 10, the outer tread 3 is a tread made of low rolling resistance material, is mounted on the outer side of the support body with negative poisson ratio, and has a pattern of anti-skid stripes on the surface, and the stripes are arranged, so that the anti-skid effect can be increased, and the vehicle can be prevented from skidding.
The section of the negative poisson's ratio support body 2 is two trapezoids which are connected together, the two trapezoids are arranged oppositely, the tightening belt 24 is arranged outside the negative poisson's ratio support body 2, the negative poisson's ratio support body 2 comprises one or more layers of support bodies, each layer of support body comprises a plurality of support units 200, the plurality of support units 200 of each layer of support body are uniformly arranged on the outer surface of the hub 1, each support unit 200 comprises a rigid support and an elastic element 22, the rigid support comprises two first support plates 211, two second support plates 212 and a rotating shaft 23, the first end of the first support plate 211 is connected with the tread surface 2 by the rotating shaft, the second end of the first support plate 211 is connected with the first end of the second support plate 212 by the rotating shaft, the second end of the second support plate 212 is fixed on the outer surface of the hub by the rotating shaft, the two first support plates 211 and the two, a plurality of elastic elements 22 are uniformly arranged between the first ends of the two first supporting plates 211, the first ends of the first supporting plates 211 are uniformly provided with grooves for accommodating the elastic elements 22, and the elastic elements 22 are installed by means of the rotating shaft 23.
Preferably, the material of the resilient member 22 and the tightening strap 24 is steel wire, rubber, nylon, resin or plastic, or in other embodiments, other resilient members are possible. The elastic element 22 and the tightening strap 24 may be the same or different elastic members.
Preferably, the first supporting plate 211 and the second supporting plate 212 are both of an integral hollow plate type structure, the cross section of which is U-shaped, and two ends of the plate type structure are respectively provided with a groove. The recess can hold the elastic component, and two tip of plate structure are whole to be the cockscomb structure.
The first supporting plate 211 and the second supporting plate 212 may also be a split structure formed by welding two plate structures together, and both ends of each plate structure are uniformly provided with grooves, and then the two plates are welded together.
The first support plate 211 and the second support plate 212 are steel plates or other hard plates capable of bearing a certain pressure.
Preferably, two tightening belts 24 are provided, which are respectively provided on the front and rear sides of the negative poisson's ratio support body 2. The outer side of the whole supporting body unit is pressed by two tightening belts 24 and then is arranged on the outer side of the hub 1.
Preferably, the number of the supporting units and the number of layers are set according to requirements in different application scenarios.
The working principle of the present invention is explained below:
the utility model discloses 24 pretightning forces in the tightening belt of negative poisson ratio supporter 2 when the equipment are provided, and elastic element 22 is in the tensioning state, makes the utility model discloses keep the structure tight not hard up under natural state. The utility model discloses when installing on the car, the car is under quiescent condition, and the wheel receives the gravity of car self, can revolute 23 rotations with ground contact part's first backup pad 211 and second backup pad 212, and elastic element 22 is drawn the power and takes place elastic deformation, and the gravity of car is offset in the resultant force of its counter-force. When the automobile moves, each negative poisson ratio supporting unit is in a repeated pressing-loosening working state, and when the road surface is not flat and is impacted, the negative poisson ratio supporting body can absorb the impact energy through larger deformation, so that the stable running of the automobile is ensured.
In a particular use, the size, number of cycles, and number of layers of the negative poisson's ratio support unit will vary according to different use requirements and will not be limited herein.
Compared with the prior art, the utility model, have following advantage:
the utility model discloses a negative poisson ratio bearing structure replaces pneumatic tire part, can play the supporting role, can satisfy the requirement that the damping absorbed energy again, has reduced the whole quality of wheel moreover, has guaranteed the ride comfort of car, simple structure, the manufacturing of being convenient for.
Although the invention has been described in detail with respect to the general description and the specific embodiments, it will be apparent to those skilled in the art that modifications and improvements can be made based on the invention. Therefore, such modifications and improvements are intended to be within the scope of the invention as claimed.
Claims (6)
1. A non-pneumatic wheel based on a negative Poisson ratio structure is characterized in that: the tire comprises a hub, a negative Poisson ratio support body and an outer tire surface, wherein the negative Poisson ratio support body is arranged on the outer side of the hub in a surrounding mode, and the outer tire surface is arranged on the outer side of the negative Poisson ratio support body in a surrounding mode;
the hub is a flat-bottom rim, and a positioning hole for mounting the negative poisson ratio support body is formed in the outer side of the flat-bottom rim;
the section of the negative Poisson ratio support body is two trapezoids connected together, a tightening belt is arranged outside the negative Poisson ratio support body, the negative Poisson ratio support body comprises one or more layers of support bodies, each layer of support body comprises a plurality of support units, the support units of each layer of support body are uniformly arranged on the outer surface of the hub, each support unit comprises a rigid support and an elastic element, the rigid support comprises two first support plates, two second support plates and a rotating shaft, the first ends of the first support plates are connected with the outer tread surface through the rotating shaft, the second ends of the first support plates are connected with the first ends of the second support plates through the rotating shaft, the second ends of the second support plates are fixed on the outer surface of the hub through the rotating shaft, and the two first support plates and the two second support plates are respectively and symmetrically installed, a plurality of elastic elements are uniformly arranged between the first ends of the two first supporting plates, grooves for containing the elastic elements are uniformly arranged at the first end parts of the first supporting plates, and the elastic elements are installed by means of rotating shafts;
the outer tread is made of low rolling resistance rubber, and the surface of the outer tread is provided with patterns for increasing contact friction.
2. A negative poisson's ratio structure-based non-pneumatic wheel as claimed in claim 1, wherein: the first supporting plate and the second supporting plate are of an integral hollow plate type structure, the cross section of the first supporting plate and the cross section of the second supporting plate are U-shaped, and two end portions of the plate type structure are respectively provided with a groove.
3. A negative poisson's ratio structure-based non-pneumatic wheel as claimed in claim 1, wherein: the first supporting plate and the second supporting plate are of split structures formed by welding two sheet structures together, and grooves are uniformly formed in two ends of each sheet structure.
4. A negative poisson's ratio structure-based non-pneumatic wheel as claimed in claim 1, wherein: the two tightening belts are respectively arranged on the front side and the rear side of the negative poisson ratio support body.
5. The negative poisson's ratio structure-based non-pneumatic wheel of claim 4, wherein: the positioning holes are uniformly provided with a plurality of groups, each group of positioning holes is provided with two rows, and each two rows of positioning holes are used for installing one supporting unit.
6. A negative poisson's ratio structure-based non-pneumatic wheel as claimed in claim 2 or claim 3, wherein: the first supporting plate and the second supporting plate are steel plates or hard plates.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020346833.4U CN211869080U (en) | 2020-03-19 | 2020-03-19 | Non-inflatable wheel based on negative Poisson ratio structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020346833.4U CN211869080U (en) | 2020-03-19 | 2020-03-19 | Non-inflatable wheel based on negative Poisson ratio structure |
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| Publication Number | Publication Date |
|---|---|
| CN211869080U true CN211869080U (en) | 2020-11-06 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020346833.4U Expired - Fee Related CN211869080U (en) | 2020-03-19 | 2020-03-19 | Non-inflatable wheel based on negative Poisson ratio structure |
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| Country | Link |
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| CN (1) | CN211869080U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111301062A (en) * | 2020-03-19 | 2020-06-19 | 燕山大学 | Non-pneumatic tire based on negative Poisson ratio structure and working method of tire |
-
2020
- 2020-03-19 CN CN202020346833.4U patent/CN211869080U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111301062A (en) * | 2020-03-19 | 2020-06-19 | 燕山大学 | Non-pneumatic tire based on negative Poisson ratio structure and working method of tire |
| CN111301062B (en) * | 2020-03-19 | 2021-11-16 | 燕山大学 | Non-pneumatic tire based on negative Poisson ratio structure and working method of tire |
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| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20201106 Termination date: 20210319 |