CN209888559U - High-stability low-rolling-resistance tire - Google Patents

Abstract

The utility model discloses a low rolling resistance tire of high stability belongs to the tire field. The tire tread of the tire body is greater than or equal to the maximum diameter of the tire body, and the diameter of the inner wall of the end part of the tire body is smaller than that of the inner wall of the middle part of the tire body; the diameters of the tire treads at the end parts of the tire body are equal, and the diameters of the tire treads in the middle part of the tire body are uniformly reduced from the two ends to the middle; a radiating groove is arranged on the tread of the middle part of the tire body along the circumferential direction, and the radiating groove is in a downward-concave arc shape along the radial section of the tire body; the utility model discloses design to the balance car characteristics, matrix width more than or equal to tread maximum diameter for the tire can carry the thing to it and provide steady supporting power, and be the mouth of a knife or a sword through designing matrix both ends inner wall, can need not extra fixed establishment, can be spacing in the matrix with the stable installation of in-wheel motor unit, greatly reduced the tire total weight, thereby reduced rolling when the tire advances and hindered, make the tire have high stability and the low advantage of rolling the resistance concurrently, moreover, the steam generator is simple in structure, and reasonable design, and easy manufacturing.

Description

High-stability low-rolling-resistance tire

Technical Field

The utility model belongs to the tire field, more specifically say, relate to a low roll resistance tire of high stability.

Background

A balance car is a new transportation tool in recent years, and is called a motion sensing car, a photographic car, and the like, and the posture state of a car body is determined by a built-in precise solid-state gyroscope according to the basic principle of dynamic stability, and a proper command is calculated through a precise and high-speed central microprocessor, and then a motor is driven to achieve the effect of balance.

Different from the traditional vehicle, the balance car moves in a mode of single-wheel support or two-wheel parallel support, and the motion control is measured and calculated by precise instruments such as a gyroscope, an acceleration sensor and the like, so that the conventional tyre has insufficient damping and buffering capacity, namely insufficient stability, the volume load of a measuring and calculating control unit of the balance car is easily increased, the service life of the balance car is prolonged, the riding experience of the balance car is reduced, the structure of the conventional tyre is not completely matched with that of the balance car, the performance of the balance car cannot be fully exerted, the rolling resistance is large during traveling, and the power consumption is large.

Through retrieval, the Chinese patent publication number: CN108216453A, published: 29 th 6 th month in 2018, a balance car is disclosed, which comprises a power supply, a control circuit, a hub motor and a pneumatic tire, wherein the power supply is used for supplying power to the balance car, and the control circuit is used for controlling the hub motor to operate; the hub motor comprises a hub rotor and a motor stator arranged in the hub rotor; the pneumatic tire is sleeved on the outer side of the hub rotor; the pneumatic tire comprises a left tire and a right tire, the left tire and the right tire are respectively arranged on the left side and the right side of the hub rotor in a sleeved mode, and the inner cavity of the left tire is communicated with the inner cavity of the right tire. This application adopts the left and right sides pneumatic tire structure of inner chamber intercommunication, though improved tire equilibrium stability, but pneumatic tire bursts the child risk height, and the tire department is arranged in to balanced wheel hub rotor, and when using in summer, the temperature that produces when high road surface temperature and rotor start not only causes to explode the child easily and makes the driver take place dangerously, still very easily damages the wheel hub rotor.

SUMMERY OF THE UTILITY MODEL

1. Problems to be solved

To prior art, balance car tire poor stability rolls and hinders big problem, the utility model provides a high stability low roll and hinders tire, matrix width more than or equal to tread maximum diameter has improved the tire to carrying the stability that the thing supported, is the mouth of a setback through designing matrix both ends inner wall, need not extra fixed establishment, can be spacing in the matrix with in-wheel motor unit stable installation, greatly reduced the tire roll when marcing hinder for the tire has high stability and low advantage of rolling and hindering.

2. Technical scheme

In order to solve the above problems, the utility model adopts the following technical proposal.

The high-stability low-rolling-resistance tire comprises a solid tire body, wherein the width of a tire tread of the tire body is larger than or equal to the maximum diameter of the tire body, and the diameter of the inner wall of the end part of the tire body is smaller than that of the inner wall of the middle part of the tire body. The tire tread width of the tire body of the scheme is more than or equal to the maximum diameter of the tire body, so that the tire body can be stably arranged on the ground, the relatively larger width can provide stable supporting force for loading objects on the tire, further, the scheme improves the structure of the inner wall of the tire body, the inner wall of the tire body is in a form of closing up at two ends to form the diameter difference between the middle part and the inner wall at the end part, a space formed inside the tire body can be used for installing a hub motor unit, the hub motor unit is naturally embedded in the inner wall of the tire body with closing up at two ends, the closing up two ends are stable and limited in the horizontal direction to the hub motor unit, the tire body is made of elastic materials, when the hub motor unit is installed, the tire body is opened, after the tire body is installed in place, the tire body is restored to the original shape, so that the hub motor unit is stably assembled in the tire body, the weight of the objects loaded in the tire body is greatly reduced, so that the total weight of the tire is reduced, the rolling resistance of the tire during running is greatly reduced, and the defect of low rolling resistance caused by improving the stability is overcome.

Further, the diameters of the tire treads at the end parts of the tire body are equal, and the diameters of the tire treads in the middle part of the tire body are uniformly reduced from the two ends to the middle. The tire treads at the end parts of the tire body are contacted with the ground, the tire treads at the two ends provide uniform and stable support for the tire symmetrically, the tire treads at the middle part of the tire body are in a concave arc shape, and when the tire advances, the tire treads at the middle part are not contacted with the ground, but are subjected to adaptive elastic deformation under the action of the gravity of the whole balance car and road conditions; when the traditional tire body is used, most of the tire body is contacted with the ground at the middle part of the tire body to generate friction for the vehicle to travel, although the small rolling resistance of the tire on the ground is small, the self balance is poor and unstable, and the room for buffering and deforming when bumping is met is small.

Further, the low resistance tire that rolls of high stability of this scheme, matrix tip tread and ground contact, when driving, under the elasticity effect, the continuous deformation of matrix tip resumes, and is corresponding, and the matrix middle part also goes on deformation and resumes, makes the matrix inner wall take place "breathing" effect, and the matrix inner wall constantly carries out the heat exchange with the external world promptly to in time distribute away the heat that produces in the matrix inner wall, prevent the child high temperature.

Further, a radiating groove is arranged on the tread of the middle part of the tire body along the circumferential direction, and the radiating groove is in a downward-concave arc shape along the shape of the radial section of the tire body. The arc-shaped lower concave heat dissipation groove is formed on the tread of the middle part of the tire body, circumferentially surrounds the tread and is provided with at least one circle. The applicant finds that the larger the specific surface area of the tire tread is, the better the heat dissipation effect is, the applicant designs the tire tread in the middle of the tire body into an arc-shaped concave structure to increase the specific surface area of the tire tread in the middle of the tire body, the experiment finds that the heat dissipation performance of the tire is improved to some extent, but the heat dissipation performance is still insufficient under a hot environment, so that the tire tread in the middle of the tire body is further improved, a plurality of circles of heat dissipation grooves are additionally arranged, each circle of heat dissipation groove is of an arc-shaped concave structure, the specific surface area of the tire tread in the middle of the tire.

Further, the heat dissipation groove is formed on the tread in the middle of the tire body in a spiral shape. The radiating groove forms a continuous spiral groove around matrix circumference on matrix middle part tread, compare in the radiating groove who sets up side by side at the tread middle part, this scheme radiating effect is more even stable, and the helical configuration can eliminate the framework stress of middle part tread, ensures the intensity and the life at matrix middle part, and the helical configuration can play fine buffering to the impact force that the axial transmitted and inhale the shake effect, has guaranteed the stability of tire when meetting the axial impact force.

Further, the end of the tire body is provided with a damping cavity, and the damping cavity is formed inside the tire body and arranged around the axis of the tire body. Traditional solid matrix weight is great, it is big to roll during the use, it is power consumptive many, and damping performance is relatively poor, this scheme is equipped with the shock attenuation chamber in the matrix tip, it is for seting up the cavity in the matrix tip, the shock attenuation chamber of arranging is encircleed and the impact force dispersion that the tip tread directly transmitted comes is to cavity wall everywhere, thereby reach buffering shock attenuation effect, the defect that solid matrix damping performance is not enough has been remedied, and the shock attenuation chamber has reduced the material consumption of preparation matrix, the matrix weight has been alleviateed, thereby the resistance of rolling has been reduced, the power consumption has been reduced.

Further, the damping cavity is a toroidal cavity formed in the carcass. The torus cavity is the circular cavity along the radial cross-sectional shape of the tire body for the damping cavity, the damping cavity adopting the shape has more uniform dispersion effect on the impact force transmitted from the tire tread at the end part of the tire body, and no stress concentration point exists during stress, so that the damping effect is better, and the service life of the cavity wall of the damping cavity is longer.

Further, a spiral convex line is formed on the wall of the damping cavity. The spiral structure can eliminate the framework stress of the cavity, and the stress generated by the tire in use is uniformly transmitted and dispersed by the spiral structure, so that the fatigue of a tire product is greatly relieved, and the safe service life of the tire is greatly prolonged; when the spiral convex patterns are arranged, the specific surface area of the cavity wall of the damping cavity is increased, so that the heat dissipation effect at the end part of the tire body is increased, and the influence of air pressure expansion caused by heat accumulation in the damping cavity on the balance stability of the tire is avoided; the spiral wale surrounds the wall of the damping cavity like a spring, and plays a certain supporting role for the damping cavity in a spring skeleton manner, when the tire tread which is landed at the end part of the tire is punctured by external force, under the action of the spiral wale arranged in the scheme, the thread near the puncture port uniformly disperses the acting force generated during puncturing, and the sudden deformation and unbalance loss of the tire when being punctured are prevented; when the spiral convex pattern structure is elastically deformed by impact force, the impact force is dispersed and absorbed and consumed in a spiral shape along the convex pattern like a spring, so that the buffering and vibration absorption capacity is greatly improved.

Furthermore, a drainage groove is formed in the circumferential direction of the tire tread at the end part of the tire body. This scheme sets up water drainage tank on the tip tread, has the water route face water drainage tank to play the effect of cutting the supplementary drainage of water film, avoids taking place the smooth phenomenon of water when rainy day, ponding road surface travel, ensures the equilibrium stability of tire under this environment.

3. Advantageous effects

Compared with the prior art, the beneficial effects of the utility model are that:

(1) the utility model discloses a high stability low rolling resistance tire, design to the characteristics of balance car, the tread width more than or equal to matrix maximum diameter of matrix for the tire can carry the thing to it and provide stable holding power, and through designing matrix both ends inner wall to be the mouth of a knife, can need not extra fixed establishment, can stably install hub motor unit spacing in the matrix, greatly reduced the tire total weight, thereby reduced the rolling resistance when the tire advances, make the tire have high stability and low advantage of rolling resistance concurrently;

(2) the utility model discloses a low rolling resistance tire of high stability, the sunken tread in matrix middle part has greatly reduced the tire and has landed on the ground, when reducing rolling resistance, the tread of the even diameter of matrix tip two provides stable support to the matrix from the matrix left and right sides both ends, guarantee the equilibrium stability of matrix, when meetting jolting, the impact force produces at two matrix tip earlier, then transmit to the matrix middle part, elastic deformation takes place in the matrix middle part and cushions the shock attenuation to the impact force, not only guarantee tire balance nature, and protected to fix the hub motor unit of the inner wall in matrix middle part not receive great impact force, prolong the effective life of hub motor unit, ride stability is stronger, use experience is better;

(3) the utility model discloses a high stability low rolling resistance tire, tread middle part is sunken, can not contact the friction with ground when the tire is marchd, therefore middle part tread can not directly produce the heat, the tire body middle part inner wall by the tire tread of the great specific surface area of heat that in-wheel motor operation produced can distribute more easily, guaranteed that the heat of tire department can not be too high, avoided a series of problems such as tread high temperature softening rolling resistance increase; furthermore, the middle tire tread and the heat dissipation groove of the arc-shaped sunken structure are selected to ensure that the arc-shaped structure has no stress concentration point, so that the stress dispersion of the transmitted stress is more uniform, the buffering effect is more uniform and stable, and the fatigue damage phenomenon caused by stress concentration at a certain position of the middle tire tread is not easy to occur;

(4) the utility model discloses a high stability low rolling resistance tire adopts the heliciform to form the radiating groove at the matrix middle part tread, compares in the radiating groove who sets up in the tread middle part side by side, and this scheme radiating effect is more even stable, and the helical structure can eliminate the framework stress of middle part tread, guarantees the intensity and the life of matrix middle part, and the helical structure can play fine buffering shake absorption effect to the impact force that the axial was come, has guaranteed the stability of tire when meetting the axial impact force;

(5) the high-stability low-rolling resistance tire of the utility model enables the inner wall of the tire body to continuously exchange heat with the outside through the deformation recovery of the end part and the middle part of the tire body, accelerates the heat dissipation of the middle part of the tire body through the heat dissipation groove formed on the tread of the middle part, and the heat dissipation performance of the tire is greatly improved by matching the heat dissipation groove and the heat dissipation groove, thereby avoiding the overheating condition of the tire;

(6) the utility model discloses a high stability low rolling resistance tire, set up the shock attenuation cavity at matrix tip, reduced matrix weight and material consumption, reduced matrix rolling resistance and manufacturing cost, and the shock attenuation chamber can disperse the impact force of tip tread transmission, compensatied the poor defect of solid matrix damping performance;

(7) the high-stability low-rolling resistance tire adopts the damping cavity in the shape of the toroidal cavity, so that the impact force transmitted from the tire tread at the end part of the tire body is more uniformly dispersed, no stress concentration point exists during stress, the buffering and damping effect is better, and the service life of the cavity wall of the damping cavity is longer;

(8) the utility model discloses a high stability low rolling resistance tire, be equipped with the spiral burr on the shock attenuation chamber wall, can eliminate the framework stress of cavity, the stress that produces when the tire uses is dispersed by the even transmission of heliciform structure, has greatly alleviated the fatigue of tire goods, makes the safe life greatly increased of tire; the heat dissipation effect at the end part of the tire body can be increased, and the influence of air pressure expansion caused by heat accumulation in the damping cavity on the stability of the balance of the tire is avoided; when the spiral convex pattern structure is elastically deformed by impact force, the impact force is dispersed, absorbed and consumed in a spiral shape along the convex pattern like a spring, so that the buffering and vibration absorption capacity of the end part of the tire body is greatly improved;

(9) the utility model discloses a low rolling resistance tire of high stability, be equipped with spiral burr structure in the matrix both ends shock attenuation chamber, be equipped with the spiral sunk structure on the matrix middle part tread, three screw mechanism trinity, the synergism, all have fine buffering absorption to the impact force that transmits along tire circumference, radial and axial, make the in-wheel motor unit in the matrix in the state of relative stability, and then guaranteed the equilibrium stability of automobile body, reduced the influence factor that balance car calculated the control unit and received, make balance car control more accurate, use experience is better;

(10) the utility model discloses a high stability low rolling resistance tire, set up the water drainage tank on the tip tread, there is the water route face water drainage tank to play the effect of cutting the water film and assisting the drainage, avoid taking place the hydroplaning phenomenon when rainy day, ponding road surface travel, ensure the equilibrium stability of tire under this environment;

(11) the utility model discloses a high stability low rolling resistance tire, concave structure, radiating groove structure, shock attenuation chamber structure of matrix middle part inner wall all reduce matrix production material, have practiced thrift matrix production material cost, have lightened matrix weight, greatly reduced because of the rolling resistance that matrix weight produced, have reduced the power consumption in the balance car use;

(12) the utility model discloses simple structure, reasonable in design easily makes.

Drawings

FIG. 1 is a front view of a high stability low rolling resistance tire of example 1;

FIG. 2 is a schematic structural view of a high stability low rolling resistance tire according to example 1;

FIG. 3 is a side view of the damping flat energy tire of the present invention;

FIG. 4 is a cross-sectional view taken along line A-A of FIG. 3;

FIG. 5 is a front view of a high stability low rolling resistance tire of example 3;

FIG. 6 is a front view of the high stability low rolling resistance tire of example 4;

FIG. 7 is a cross-sectional view taken along the line A-A of the high stability low rolling resistance tire of example 6;

FIG. 8 is a cross-sectional view taken along the line A-A of the high stability low rolling resistance tire of example 7;

FIG. 9 is a cross-sectional view taken along line B-B of FIG. 6;

FIG. 10 is a front view of a high stability low rolling resistance tire of example 8;

FIG. 11 is a front view of a high stability low rolling resistance tire of example 8;

fig. 12 is a sectional view of a high stability low rolling resistance tire with an internal motor a-a.

In the figure: 1. a carcass; 10. a carcass end; 11. the middle part of the tyre body; 2. a heat sink; 3. a damping chamber; 30. a spiral relief; 4. A water discharge tank; 5. and the hub motor unit.

Detailed Description

The invention will be further described with reference to specific embodiments and drawings.

Example 1

A high-stability low-rolling-resistance tire comprises a solid tire body 1, wherein the width of a tire tread of the tire body 1 is larger than or equal to the maximum diameter of the tire body 1, and the diameter of the inner wall of the end part 10 of the tire body is smaller than that of the inner wall of the middle part 11 of the tire body.

In the prior art, the main defects of the tire for the balance vehicle are as follows: the balance car requires than higher to tire stability, and the tire that stability is not enough not only can increase balance car and calculate the load of control unit, shortens balance car life, and can influence balance car control, brings not good use experience, but increases the change of tire stability and easily causes the tire to roll and hinders the increase again.

Because the tire often adopts single wheel or double round to be side by side two kinds of forms in the balance car, therefore tire self needs higher stability, as shown in fig. 1, fig. 2, fig. 3 and fig. 4, the tread width more than or equal to 1 maximum diameter of matrix of tire matrix 1 of this embodiment for tire self can be stably arranged in ground, its relatively great width can provide stable holding power to year thing on the tire, and further, this embodiment has improved matrix 1 inner wall structure, matrix 1 inner wall is the form of both ends binding off, this kind of structure can be realized through two kinds of modes at least: the inner wall of the tire end 10 is thickened or the inner wall of the tire middle 11 is reduced, in this embodiment, the form of reducing the inner wall of the tire middle 11 is adopted, the weight of the tire 1 is reduced, the diameter difference between the middle part and the inner wall of the end is formed, the space formed inside the tire 1 can be used for installing the hub motor unit 5, as shown in figure 12, the hub motor unit 5 is naturally embedded in the inner wall of the tire 1 with two closed ends, the closed ends are stably limited to the hub motor unit 5 in the horizontal direction, because the tire 1 is made of elastic material, when the hub motor unit 5 is installed, the tire 1 is propped open, after the tire 1 is installed in place, the tire 1 is restored to the original shape, so that the hub motor unit 5 is stably assembled in the tire 1 by the self structure and elasticity of the tire 1, other fixing mechanisms are not needed to be additionally arranged in the tire 1 for fixing between, thereby reducing the total weight of the tire, greatly reducing the rolling resistance of the tire when the tire travels and overcoming the defect of low rolling resistance caused by improving the stability.

The low rolling resistance tire of high stability of this embodiment, design to the characteristics of balance car, 1 the tread width more than or equal to matrix 1 maximum diameter of matrix, make the tire can carry the thing to it and provide stable support power, and be the mouth of a lesson formula through designing matrix both ends inner wall, can need not extra fixed establishment, can be spacing in matrix 1 with in-wheel motor unit 5 stable installation, greatly reduced the tire total weight, thereby reduced rolling resistance when the tire marchs, make the tire have high stability and low advantage of rolling resistance concurrently.

Example 2

The high-stability low-rolling-resistance tire of the embodiment is further improved on the basis of the embodiment 1, as shown in fig. 1, the tread diameters of the end portions 10 of the tire body are all equal, and the tread diameter of the middle portion 11 of the tire body is uniformly reduced from the two ends to the middle.

The damping performance of the tire is also one of important factors influencing the stability of the tire, the better the damping performance of the tire is, the stronger the stability is, in this embodiment, the tire tread of the end part 10 of the tire body is in contact with the ground, the tire treads of the two ends provide uniform and stable support for the tire symmetrically, the tire tread of the middle part 11 of the tire body presents a concave arc shape, when the tire advances, the tire tread of the middle part is not in contact with the ground, but generates adaptive elastic deformation under the action of the gravity of the whole balance car and road conditions; when the traditional tire body is used, most of the tire body is contacted with the ground at the middle part of the tire body to generate friction for the vehicle to travel, although the small rolling resistance of the tire on the ground is small, the self balance is poor and unstable, and the room for buffering and deforming when bumping is met is small.

Further, the low rolling resistance tire of high stability of this embodiment, matrix tip 10 tread and ground contact, when driving, under the elasticity effect, the continuous deformation of matrix tip 10 resumes, and correspondingly, matrix middle part 11 also carries out the deformation and resumes, makes matrix 1 inner wall take place "breathing" effect, and matrix 1 inner wall constantly carries out the heat exchange with the external world promptly to in time distribute away the heat that produces in matrix 1 inner wall, prevent the child high temperature.

In the tire body 1 of the embodiment, the tread of the concave middle part 11 of the tire body greatly reduces the landing of the tire, when the rolling resistance is reduced, the treads with uniform diameters at the two ends 10 of the tire body provide stable support for the tire body 1 from the left and right ends of the tire body 1, the balance stability of the tire body 1 is ensured, when bumping, impact force is firstly generated at the two ends 10 of the tire body and then transmitted to the middle part 11 of the tire body, the middle part 11 of the tire body generates elastic deformation to buffer and absorb the impact force, not only is the balance of the tire ensured, but also the hub motor unit 5 fixed on the inner wall of the middle part 11 of the tire body is protected from larger impact force, the effective service life of the hub motor unit 5 is prolonged, compared with the tire body with uniform diameter of the tire body or the tire body with the grounded tread at the middle part, the impact force transmitted to the hub motor unit 5 is minimum, and the impact force, therefore, the riding stability is stronger, and the use experience is better.

Example 3

The high-stability low-rolling-resistance tire of the present embodiment is further improved on the basis of embodiment 2, as shown in fig. 5, heat dissipation grooves 2 are circumferentially arranged on the tread of the middle portion 11 of the tire body, and the shape of the heat dissipation grooves 2 along the radial section of the tire body 1 is a concave arc shape.

The arc-shaped lower concave heat dissipation groove 2 is formed on the tread of the middle part 11 of the tire body, surrounds the tread in the circumferential direction, and is arranged for at least one circle.

Wheel hub motor is equipped with in the balance car usually in tire department and brakes, the heat that produces in the wheel hub motor use can transmit the tire on, this is very big examination to tire thermal diffusivity, the tire that thermal diffusivity is not good, lead to matrix 1 to soften easily, the tread is landed on the ground and is increased, roll and hinder greatly increased, balance car power consumption increases, to the balance car of inflatable tire, still easily lead to the flat tire condition to take place, and the not good tire of heat dissipation, wheel hub motor department heat constantly accumulates, wheel hub motor easily burns out.

The applicant finds that the larger the specific surface area of the tire tread is, the better the heat dissipation effect is, the applicant designs the tire tread in the middle part 11 of the tire body into an arc-shaped concave structure to increase the specific surface area of the tire tread in the middle part 11 of the tire body, the experiment finds that the heat dissipation performance of the tire is improved to some extent, but the heat dissipation performance under a hot environment is still insufficient, so that the further improvement is performed on the tire tread in the middle part 11 of the tire body, a plurality of circles of heat dissipation grooves 2 are additionally arranged, each circle of heat dissipation groove 2 is of an arc-shaped concave structure, the specific surface area of the tire tread.

The high-stability low-rolling resistance tire has the advantages that the middle of the tire tread is sunken, and the tire tread does not contact and rub with the ground when the tire advances, so that the middle tire tread does not directly generate heat, the tire tread at the end part 10 of the tire body rubs with the ground to generate heat, but the contact part of the end part 10 of the tire body and air is large, so that the heat is relatively easy to dissipate, the heat generated by the operation of the hub motor on the inner wall of the middle part 11 of the tire body can be more easily dissipated through the tire tread with a large specific surface area, the heat at the tire position is ensured not to be overhigh, and therefore, a series of problems; further, 11 treads in the middle part of the tire body are arc-shaped and sunken, the heat dissipation groove 2 is an arc-shaped sunken structure, the purpose of selecting this shape is that the arc-shaped structure has no stress concentration point, the stress dispersion to the transmission is more even, the buffering effect is more even and stable, and the middle part of the tread is not easy to cause the fatigue damage phenomenon caused by stress concentration in a certain position.

Example 4

The high-stability low-rolling-resistance tire of the present embodiment is further improved on the basis of embodiment 3, and as shown in fig. 6, the heat dissipation grooves 2 are spirally formed on the tread of the middle portion 11 of the tire body.

The radiating grooves 2 form a continuous spiral groove on the tire tread in the middle 11 of the tire body around the tire body 1 in the circumferential direction, and compared with a plurality of circles of radiating groove 2 structures arranged side by side in the figure 5, the structure of the embodiment has a better effect of more uniformly increasing the specific surface area of the tire tread.

The heat dissipation grooves 2 are arranged in parallel, each heat dissipation groove 2 independently plays a role in heat dissipation, the deeper the heat dissipation grooves 2 are arranged, the denser the arrangement is, the larger the increase of the contrast surface area is, the more obvious the heat dissipation effect is improved, but the larger the depth of the heat dissipation grooves 2 is arranged, the larger the diameter of the tread at the position is caused, the thinner the thickness of the carcass 1 is caused, the strength of the carcass 1 is reduced, the carcass 1 is subjected to too large stress when the tire advances, and the tire is likely to be fractured, the heat dissipation grooves 2 of the embodiment are spirally arranged, no depression is formed at any position of the tread, the occurrence of the condition that the diameter of one tread is reduced too large is avoided, and compared with the heat dissipation grooves 2 with the single action in the figure 5, the annular circles of the heat dissipation grooves 2 of the embodiment are mutually communicated, a communicated arc-shaped depression channel is formed on the tread at the middle part, as the shape of a spring, the, for the impact force transmitted in the axial direction, the spiral radiating grooves 2 can perform good buffering and vibration absorbing functions, so that the stability of the tire when the tire meets the axial impact force is ensured.

Example 5

The high-stability low-rolling-resistance tire of the embodiment is further improved on the basis of embodiments 1-4, as shown in fig. 2 and 4, a damping cavity 3 is arranged at the end part 10 of the tire body, and the damping cavity 3 is formed inside the tire body 1 and arranged around the axis of the tire body 1.

The matrix 1 that adopts in this application is solid matrix, the danger of blowing out has been avoided, but 1 weight of traditional solid matrix is great, it is big to roll the resistance during use, it is power consumptive many, and the damping performance is relatively poor, this embodiment is equipped with shock attenuation chamber 3 in matrix tip 10, it is for seting up the cavity in matrix tip 10, it can be with the impact force dispersion that the direct transmission of tip tread comes to cavity wall everywhere to encircle the shock attenuation chamber 3 of arranging, thereby reach buffering shock attenuation effect, the defect that 1 damping performance of solid matrix is not enough has been compensatied, and shock attenuation chamber 3 has reduced the material consumption of preparation matrix 1, matrix 1 weight has been alleviateed, thereby rolling resistance has been reduced, power consumption has been reduced.

Further, the cross-sectional shape of the damping chamber 3 along the radial direction of the carcass 1 includes, but is not limited to, an ellipse, a rectangle, a kidney, a circle, etc., and can all play a role in reducing rolling resistance and increasing damping capacity.

Example 6

The high-stability low-rolling-resistance tire of the present embodiment is further improved on the basis of embodiment 5, as shown in fig. 7, the damping cavity 3 is a toroidal cavity formed in the tire body 1.

The torus cavity is the circular cavity along the radial cross-sectional shape of the tire body 1 for the damping cavity 3, the damping cavity 3 adopting the shape has more uniform dispersion effect on the impact force transmitted from the tire surface of the tire body end 10, and has no stress concentration point when stressed, so that the damping effect is better, and the service life of the cavity wall of the damping cavity 3 is longer.

Example 7

The high-stability low-rolling-resistance tire of the present embodiment is further improved on the basis of embodiment 6, and as shown in fig. 8 and 9, a spiral rib 31 is formed on the cavity wall of the shock absorbing cavity 3.

The spiral structure can eliminate the framework stress of the cavity, and the stress generated by the tire in use is uniformly transmitted and dispersed by the spiral structure, so that the fatigue of a tire product is greatly relieved, and the safe service life of the tire is greatly prolonged; when the spiral convex patterns 30 are arranged, the specific surface area of the cavity wall of the damping cavity 3 is increased, so that the heat dissipation effect at the end part 10 of the tire body is increased, and the influence of air pressure expansion caused by heat accumulation in the damping cavity 3 on the balance stability of the tire is avoided; the spiral wale 30 surrounds the wall of the damping cavity 3 like a spring, plays a certain supporting role for the damping cavity 3 in a spring skeleton manner, and when the tire tread on the ground at the end part of the tire is punctured by external force, under the action of the spiral wale arranged in the embodiment, the thread near the puncture hole uniformly disperses the acting force generated during puncturing, so that the sudden deformation losing balance when the tire is punctured is prevented; when the spiral ribs 30 are elastically deformed by an impact force, the impact force is dispersed and absorbed and consumed along the ribs in a spiral shape like a spring, so that the buffering and vibration absorption capacity is greatly improved.

The high-stability low-rolling resistance tire of the embodiment, be equipped with spiral burr structure in the damping cavity 3 of the two ends of the tire body, be equipped with spiral sunk structure on the tire tread of the middle part of the tire body, three screw mechanism trinity, synergistic effect, all have fine buffering absorption effect to the impact force that transmits along tire circumference, radial and axial (radial, the impact force that transmits has spiral burr 30 to cushion and absorb, the impact force that transmits in axial is by the 2 buffering absorption of heliciform radiating groove), make in-wheel motor unit 5 in the tire body 1 in the relatively stable state, and then guaranteed the equilibrium stability of automobile body, the influence factor that the balance car calculates the control unit and receives has been reduced, make balance car control more accurate, use and experience better.

Example 8

The tire with high stability and low rolling resistance of the embodiment is further improved on the basis of the embodiment 7, and as shown in fig. 10 and 11, drainage grooves 4 are circumferentially formed in the tire surface of the tire body end 10.

This embodiment sets up water drainage tank 4 on the tip tread, has water route face water drainage tank 4 to play the effect of cutting the supplementary drainage of water film, avoids taking place the hydroplaning phenomenon when rainy day, ponding road surface travel, ensures the equilibrium stability of tire under this environment.

Further, the shape of the drain groove 4 includes, but is not limited to, an S-shaped groove (as shown in fig. 10 and 11), an annular groove, a cylindrical concave hole suction cup, and the like.

The examples of the utility model are only right the utility model discloses a preferred embodiment describes, and not right the utility model discloses design and scope are injectd, do not deviate from the utility model discloses under the prerequisite of design idea, the field engineering technical personnel are right the utility model discloses a various deformation and improvement that technical scheme made all should fall into the protection scope of the utility model.

Claims (8)

1. The utility model provides a low rolling resistance tire of high stability, includes solid matrix (1), its characterized in that: the tread width of the tire body (1) is larger than or equal to the maximum diameter of the tire body (1), and the diameter of the inner wall of the end part (10) of the tire body is smaller than that of the inner wall of the middle part (11) of the tire body.

2. A high stability low rolling resistance tire according to claim 1 wherein: the tire tread diameters of the tire body end parts (10) are equal, and the tire tread diameter of the tire body middle part (11) is uniformly reduced from the two ends to the middle.

3. A high stability low rolling resistance tire according to claim 2 wherein: the tyre is characterized in that a radiating groove (2) is arranged on the tyre surface of the middle part (11) of the tyre body along the circumferential direction, and the radiating groove (2) is in a downward-concave arc shape along the radial section of the tyre body (1).

4. A high stability low rolling resistance tire according to claim 3 wherein: the heat dissipation groove (2) is spirally formed on the tread of the middle part (11) of the tire body.

5. A high stability low rolling resistance tire according to any one of claims 1 to 4, wherein: the tyre body end part (10) is provided with a damping cavity (3), and the damping cavity (3) is formed inside the tyre body (1) and arranged around the axis of the tyre body (1).

6. A high stability low rolling resistance tire according to claim 5 wherein: the damping cavity (3) is a toroidal cavity formed in the tire body (1).

7. A high stability low rolling resistance tire according to claim 6 wherein: and a spiral convex pattern (30) is formed on the wall of the damping cavity (3).

8. A high stability low rolling resistance tire according to claim 7 wherein: and drainage grooves (4) are formed in the circumferential direction of the tire surface of the tire body end part (10).

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