CN114454666A - Tread-adjustable non-pneumatic tire with energy collecting device - Google Patents

Tread-adjustable non-pneumatic tire with energy collecting device Download PDF

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Publication number
CN114454666A
CN114454666A CN202210184004.4A CN202210184004A CN114454666A CN 114454666 A CN114454666 A CN 114454666A CN 202210184004 A CN202210184004 A CN 202210184004A CN 114454666 A CN114454666 A CN 114454666A
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tire
pneumatic tire
tread
energy harvesting
adjustable non
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CN202210184004.4A
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CN114454666B (en
Inventor
邓耀骥
王志越
沈辉
龚俊杰
陈熙
周强强
袁欣阳
仇李扬
李广迪
彭以超
顾天乐
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Yangzhou University
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Yangzhou University
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60C—VEHICLE TYRES; TYRE INFLATION; TYRE CHANGING; CONNECTING VALVES TO INFLATABLE ELASTIC BODIES IN GENERAL; DEVICES OR ARRANGEMENTS RELATED TO TYRES
    • B60C7/00—Non-inflatable or solid tyres
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60B—VEHICLE WHEELS; CASTORS; AXLES FOR WHEELS OR CASTORS; INCREASING WHEEL ADHESION
    • B60B15/00—Wheels or wheel attachments designed for increasing traction
    • B60B15/26—Auxiliary wheels or rings with traction-increasing surface attachable to the main wheel body
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60B—VEHICLE WHEELS; CASTORS; AXLES FOR WHEELS OR CASTORS; INCREASING WHEEL ADHESION
    • B60B15/00—Wheels or wheel attachments designed for increasing traction
    • B60B15/26—Auxiliary wheels or rings with traction-increasing surface attachable to the main wheel body
    • B60B15/263—Traction increasing surface being located axially beside tire
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60C—VEHICLE TYRES; TYRE INFLATION; TYRE CHANGING; CONNECTING VALVES TO INFLATABLE ELASTIC BODIES IN GENERAL; DEVICES OR ARRANGEMENTS RELATED TO TYRES
    • B60C19/00—Tyre parts or constructions not otherwise provided for
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60C—VEHICLE TYRES; TYRE INFLATION; TYRE CHANGING; CONNECTING VALVES TO INFLATABLE ELASTIC BODIES IN GENERAL; DEVICES OR ARRANGEMENTS RELATED TO TYRES
    • B60C23/00—Devices for measuring, signalling, controlling, or distributing tyre pressure or temperature, specially adapted for mounting on vehicles; Arrangement of tyre inflating devices on vehicles, e.g. of pumps or of tanks; Tyre cooling arrangements
    • B60C23/06—Signalling devices actuated by deformation of the tyre, e.g. tyre mounted deformation sensors or indirect determination of tyre deformation based on wheel speed, wheel-centre to ground distance or inclination of wheel axle
    • B60C23/061—Signalling devices actuated by deformation of the tyre, e.g. tyre mounted deformation sensors or indirect determination of tyre deformation based on wheel speed, wheel-centre to ground distance or inclination of wheel axle by monitoring wheel speed
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
    • B60R16/00—Electric or fluid circuits specially adapted for vehicles and not otherwise provided for; Arrangement of elements of electric or fluid circuits specially adapted for vehicles and not otherwise provided for
    • B60R16/02—Electric or fluid circuits specially adapted for vehicles and not otherwise provided for; Arrangement of elements of electric or fluid circuits specially adapted for vehicles and not otherwise provided for electric constitutive elements
    • B60R16/03—Electric or fluid circuits specially adapted for vehicles and not otherwise provided for; Arrangement of elements of electric or fluid circuits specially adapted for vehicles and not otherwise provided for electric constitutive elements for supply of electrical power to vehicle subsystems or for
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
    • B60R16/00—Electric or fluid circuits specially adapted for vehicles and not otherwise provided for; Arrangement of elements of electric or fluid circuits specially adapted for vehicles and not otherwise provided for
    • B60R16/02—Electric or fluid circuits specially adapted for vehicles and not otherwise provided for; Arrangement of elements of electric or fluid circuits specially adapted for vehicles and not otherwise provided for electric constitutive elements
    • B60R16/03—Electric or fluid circuits specially adapted for vehicles and not otherwise provided for; Arrangement of elements of electric or fluid circuits specially adapted for vehicles and not otherwise provided for electric constitutive elements for supply of electrical power to vehicle subsystems or for
    • B60R16/0307—Electric or fluid circuits specially adapted for vehicles and not otherwise provided for; Arrangement of elements of electric or fluid circuits specially adapted for vehicles and not otherwise provided for electric constitutive elements for supply of electrical power to vehicle subsystems or for using generators driven by a machine different from the vehicle motor
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02N—ELECTRIC MACHINES NOT OTHERWISE PROVIDED FOR
    • H02N2/00—Electric machines in general using piezoelectric effect, electrostriction or magnetostriction
    • H02N2/18—Electric machines in general using piezoelectric effect, electrostriction or magnetostriction producing electrical output from mechanical input, e.g. generators
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60C—VEHICLE TYRES; TYRE INFLATION; TYRE CHANGING; CONNECTING VALVES TO INFLATABLE ELASTIC BODIES IN GENERAL; DEVICES OR ARRANGEMENTS RELATED TO TYRES
    • B60C19/00—Tyre parts or constructions not otherwise provided for
    • B60C2019/005—Magnets integrated within the tyre structure

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

Abstract

The invention discloses a tread-adjustable non-pneumatic tire with an energy collecting device, which comprises a main tire, wherein a speed detection mechanism is arranged on the main tire; the side tire is arranged on one side of the main tire and comprises a side tire body and a telescopic mechanism for controlling the contraction of the side tire body. The detection mechanism detects the running condition of the vehicle in real time, and the telescopic mechanism adjusts the telescopic of the side tire so as to realize the real-time adjustment of the tread width of the non-pneumatic tire.

Description

Tread-adjustable non-pneumatic tire with energy collecting device
Technical Field
The invention relates to the field of non-pneumatic tires, in particular to a tread-adjustable non-pneumatic tire with an energy collecting device.
Background
Tires were one of the important parts of vehicles, and pneumatic tires have been occupying the mainstream market since the invention of veterinary medicine dunlop in 1888. When air is compressed, the collision of air molecules on the wall of the container is more violent, so that the air pressure in the closed space is increased, and macroscopic elasticity is formed. The pneumatic tire utilizes the characteristic of closed air, thereby obtaining excellent buffering performance. However, with the continuous increase of the driving speed of automobiles, the development and change of road environments and the higher requirements of people on driving safety, the traditional pneumatic tire gradually exposes the defects of the traditional pneumatic tire. First, the conventional pneumatic tire inevitably has a risk of inflation, air leakage, tire repair, and tire burst due to the limitation of its own inflation structure. According to highway accident statistics, 70% of traffic accidents on Chinese expressways are caused by tire burst. When a tire burst accident occurs, a driver often has no time to react, and a serious traffic accident is easily caused, so that casualties are caused. Secondly, the state detection of the traditional pneumatic tire is mainly completed manually, and the running state of the tire is difficult to monitor in real time when the automobile runs for a long time, so that the potential safety hazard is not small. In addition to the lack of safety, the conventional pneumatic tire has a fixed tire width when it is shipped from the factory, and it is difficult for a user to replace the tire in a timely manner after selection. For different road surfaces, the wide tire and the narrow tire have different performances and functions, so that the traditional pneumatic tire cannot achieve good adaptability to different road conditions.
In order to solve the defects of the pneumatic tire and ensure the driving safety of people. Since the 21 st century, international attention has been paid to smart tire technology and non-pneumatic tire technology. The intelligent tire technology aims to ensure that the tire is not only a rubber compound passively matched with a vehicle to run, but also an important ring in a wheel control system, so that the tire is smarter and can be expressed. The intelligent tire can acquire information such as air Pressure, temperature, speed, acceleration and the like in the tire by installing a TPMS (tire Pressure monitoring System) system in the tire, and transmits data information to a user for knowing through a wireless communication device. Therefore, the driver can grasp the state information of the tire in real time, thereby preventing the accident or preparing in advance before the accident. The power supply of the intelligent tire is an issue which is not perfectly solved. With the rapid development of radio communication and micro-electromechanical system technologies, vibration energy harvesting techniques are widely used. The vibration energy harvesting techniques proposed by the related researchers at present mainly include electromagnetic type, electrostatic type, piezoelectric type, magnetostrictive type and composite type, and the application of giant magnetostrictive material in energy harvesting is the latest research focus. The deformation or vibration of the tire can be utilized to convert the dissipated energy into usable energy, so that electric energy is provided for electrical appliances, and the tire energy recovery system is provided. However, the existing research is dedicated to the recovery and utilization of energy of the conventional pneumatic tire, and the research and development of the energy recovery technology of the non-pneumatic tire are rare.
The non-pneumatic tire technology is a novel tire technology which fundamentally avoids tire burst. Non-pneumatic tires employ polymeric elastomeric supports or fillers in place of compressed air as an important component of the pneumatic tire. Compared with the traditional pneumatic tire, the non-pneumatic tire is free of inflation and maintenance, completely free of tire burst risk, greatly ensures driving safety, and has wide market and development prospect. However, non-pneumatic tires are also not perfect and do not have the resilience that is generally superior to pneumatic tires because compressed air is discarded. When vehicle cornering acceleration is too great, the non-pneumatic tires may not be able to provide a large aligning force to the vehicle, thereby exposing the vehicle to the risk of sideslip and rollover.
Currently, most of conventional pneumatic tires or emerging non-pneumatic wheels, whether they are used in a vehicle, cannot automatically adjust the width of the tire to different conditions during driving. The wide tire has a large contact area with the ground, so that the friction force is larger, and the oil consumption of the automobile is increased. Meanwhile, the wider the tire, the lower the flattening ratio thereof, and thus the poorer the shock-absorbing property. The narrow tires also have the defects of poor road surface perception, weak lateral resistance during turning, long braking distance and the like. Therefore, the optimal driving effect cannot be achieved by using both the pneumatic tire and the non-pneumatic wheel.
Disclosure of Invention
This section is for the purpose of summarizing some aspects of the embodiments of the application and to briefly introduce some preferred embodiments, and in this section as well as in the abstract and the application title of the application may be simplified or omitted to avoid obscuring the purpose of this section, the abstract and the application title, and such simplifications or omissions are not intended to limit the scope of the application.
The present application has been made in view of the above and/or other problems occurring in the prior art.
Therefore, the technical problem to be solved by the application is: the non-pneumatic tire cannot adjust the tread width in real time according to the driving condition of a vehicle in the using process.
In order to solve the technical problem, the application provides the following technical scheme: a tread adjustable non-pneumatic tire with an energy harvesting device comprising,
the main tire is provided with a speed detection mechanism;
the side tire is arranged on one side of the main tire and comprises a side tire body and a telescopic mechanism for controlling the contraction of the side tire body.
As a preferred aspect of the present application, a tread adjustable non-pneumatic tire with an energy harvesting device is provided, wherein: the main tire comprises a hub, a plurality of first spokes are connected to the hub along the circumferential direction of the hub, one end, connected with the hub, of the first spoke, which is far away from the hub, is connected with a rim, one side, deviated from the first spokes, of the rim is connected with a plurality of supporting spokes along the circumferential direction of the rim, one side, far away from the rim, of the supporting spokes is connected with a main tire body, an energy collecting device is arranged between the hub and the first spokes, and the energy collecting device is used for supplying energy to a speed detection mechanism and a telescopic mechanism.
As a preferred aspect of the present application, a tread adjustable non-pneumatic tire with an energy harvesting device is provided, wherein: the speed detection mechanism comprises a plurality of speed sensors and a plurality of acceleration sensors which are arranged on a rim at intervals, when the speed sensors and the acceleration sensors detect the speed information and the acceleration of a tire, an electric signal is sent to the main control chip, the main control chip makes a response based on an algorithm, and the expansion and contraction of a side tire body are controlled through the expansion and contraction mechanism, so that the width of the tire tread of the tire is adjusted.
As a preferred aspect of the present application, a tread adjustable non-pneumatic tire with an energy harvesting device is provided, wherein: the energy collecting device comprises a base fixedly connected to a hub, a sleeve is fixedly connected to the base, a first bias magnet is further connected to the base and located inside the sleeve, the first bias magnet is far away from a giant magnetostrictive rod fixedly connected to one end connected to the base, the periphery of the giant magnetostrictive rod is wound with an induction coil, one end, far away from the end connected to the first bias magnet, of the giant magnetostrictive rod is connected with a second bias magnet, the second bias magnet is far away from an end fixedly connected to the giant magnetostrictive rod, the bearing rod penetrates through the sleeve and is connected to a rim, a pre-tightening spring is further sleeved on the bearing rod, and the pre-tightening spring is in contact with the inner wall of the sleeve.
As a preferred aspect of the present application, a tread adjustable non-pneumatic tire with an energy harvesting device is provided, wherein: the length of the induction coil is larger than that of the giant magnetostrictive rod.
As a preferred aspect of the present application, a tread adjustable non-pneumatic tire with an energy harvesting device is provided, wherein: the giant magnetostrictive rod is made of a rare earth giant magnetostrictive material, and the base and the sleeve are made of high-permeability materials.
As a preferred aspect of the present application, a tread adjustable non-pneumatic tire with an energy harvesting device is provided, wherein: the telescopic mechanism comprises a base installed on a wheel hub, a plurality of second spokes formed by arc-shaped electric telescopic rods are installed on the base, driving motors which correspond to the second spokes one by one and are used for driving the second spokes to stretch out and draw back are further arranged on the base, and the side tire body is installed at one end, far away from the end connected with the base, of the second spoke.
As a preferred aspect of the present application, a tread adjustable non-pneumatic tire with an energy harvesting device is provided, wherein: still be connected with the collar on the rim, be provided with a plurality of spacing portions with second spoke one-to-one on the collar, spacing portion includes two stoppers, second spoke and the relative one side sliding fit of two stoppers.
As a preferred aspect of the present application, a tread adjustable non-pneumatic tire with an energy harvesting device is provided, wherein: and the side tire body is also provided with a plurality of buffer holes.
As a preferred aspect of the present application, a tread adjustable non-pneumatic tire with an energy harvesting device is provided, wherein: the supporting spokes are composed of a first supporting strip and a second supporting strip which are connected with each other, and the included angle between the first supporting strip and the second supporting strip is larger than ninety degrees.
The beneficial effect of this application: the detection mechanism detects the running condition of the vehicle in real time, and the telescopic mechanism adjusts the telescopic of the side tire so as to realize the real-time adjustment of the tread width of the non-pneumatic tire.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings needed to be used in the description of the embodiments are briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present application, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without inventive exercise. Wherein:
FIG. 1 is a schematic diagram of the overall structure of an adjustable tread non-pneumatic tire with an energy harvesting device according to an embodiment of the present disclosure;
FIG. 2 is a schematic diagram of the overall structure of a main tire of an adjustable tread non-pneumatic tire with an energy harvesting device according to an embodiment of the present disclosure;
FIG. 3 is a schematic diagram of a side tire of an adjustable tread non-pneumatic tire with an energy harvesting device according to an embodiment of the present disclosure in a contracted state;
FIG. 4 is a schematic diagram of a side tire of an adjustable tread non-pneumatic tire with an energy harvesting device according to an embodiment of the present disclosure in an extended state;
FIG. 5 is a cross-sectional view of an energy collection device in a tread adjustable non-pneumatic tire with an energy collection device according to one embodiment of the present application.
Detailed Description
In order to make the aforementioned objects, features and advantages of the present application more comprehensible, embodiments accompanying the present application are described in detail below with reference to the accompanying drawings.
In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present application, but the present application may be practiced in other ways than those described herein, and it will be apparent to those of ordinary skill in the art that the present application is not limited to the specific embodiments disclosed below.
Next, the present application will be described in detail with reference to the drawings, and in the detailed description of the embodiments of the present application, the cross-sectional views illustrating the structure of the device are not enlarged partially according to the general scale for convenience of illustration, and the drawings are only examples, which should not limit the scope of the protection of the present application. In addition, the three-dimensional dimensions of length, width and depth should be included in the actual fabrication.
Further, reference herein to "one embodiment" or "an embodiment" means that a particular feature, structure, or characteristic described in connection with the embodiment is included in at least one implementation of the present application. The appearances of the phrase "in one embodiment" in various places in the specification are not necessarily all referring to the same embodiment, nor are separate or alternative embodiments mutually exclusive of other embodiments.
Example 1
Referring to fig. 1-4, the present embodiment provides an adjustable non-pneumatic tire with a tread, which includes a main tire 100, the main tire 100 includes a hub 101, 12 first spokes 102 are fixedly connected to the hub 101 along a circumferential direction of the hub 101, and every two first spokes 102 are arranged at equal intervals in a group. One end fixedly connected with rim 103 that first spoke 102 kept away from and link to each other with wheel hub 101, rim 103 deviates from one side of first spoke 102 and still integrative array along the circumference of rim 103 is provided with a plurality of support spokes 104, and polyurethane material is all selected for use to rim 103 and support spokes 104.
The supporting spokes 104 are formed by connecting a first supporting strip 104a and a second supporting strip 104b which are connected with each other, and the included angle between the first supporting strip 104a and the second supporting strip 104b is larger than 90 degrees. And the first support strip 104a is fixedly connected with the rim 103, and the second support strip 104b is connected with the main tire body 105 at the side far away from the side connected with the first support strip 104 a. By providing the support spokes 104 instead of the pneumatic structure of the conventional pneumatic tire, the possibility of tire burst can be completely circumvented and vibration absorption can be buffered. The main tire body 105 is made of low rolling resistance rubber, a longitudinal and transverse mixed pattern is arranged on the table top of the main tire body 105, the longitudinal pattern is used for rapid drainage, and the transverse pattern is used for improving the grip of the tire.
The rim 103 is further provided with a speed detection mechanism 200, specifically, the speed detection mechanism 200 comprises 3 acceleration sensors 202 and 3 speed sensors 201, and the acceleration sensors 202 and the speed sensors 201 are alternately arranged at fixed intervals. When the vehicle is in the process of being shaped, the speed sensor 201 and the acceleration sensor 202 can detect the speed information and the acceleration information of the tires and send the speed information and the acceleration information to the central control chip, and the speed condition of the tires is analyzed through the central control chip.
The side tire 300 is further installed on one side of the main tire 100, the side tire 300 comprises a base 401 installed on the hub 101, six driving motors 403 are installed on the base 401, and six second spokes 402 formed by arc-shaped electric telescopic rods. The six drive motors 403 are respectively fitted with the six second spokes 402 one by one, and control the telescopic movement of the second spokes 402. The end of the second spoke 402 away from the base 401 is further connected with a side tire body 301 made of polyurethane, and six buffer holes 301a are formed in the side tire body 301. After the central control chip receives the electrical signals sent by the speed sensor 201 and the acceleration sensor 202 and the values reach the preset values, the central control chip controls the on/off of the driving motor 403 through wireless signals, and further controls the extension and retraction of the second spoke 402. When the second spokes 402 are extended, the carcass of the side tire 300 will be substantially flat with the main tire carcass 105, thereby achieving a widening of the non-pneumatic tire tread.
Example 2
Referring to fig. 1 to 4, the present embodiment is different from embodiment 1 in that a mounting ring 404 is further fixedly connected to the rim 103 along the circumferential direction of the rim 103, and six sets of limiting portions 405 that are engaged with the second spokes 402 one by one are fixedly connected to the mounting ring 404 at equal intervals along the circumferential direction of the mounting ring 404. Each set of limiting portions 405 includes two limiting blocks 405a, and the second spoke 402 is in sliding fit with the opposite sides of the two limiting blocks 405 a.
The second spoke 402 is limited by the limiting part 405, so that the stability of the second spoke 402 after extending out can be improved, and the supporting effect of the side tire 300 when contacting with the ground is improved.
Example 3
Referring to fig. 1 to 5, the present embodiment is different from embodiment 2 in that six energy collecting devices 500 are further provided in the present embodiment, and specifically, the energy collecting devices 500 include a base 501 fixedly connected to an outer side wall of the hub 101. The base 501 is further fixedly connected with a sleeve 502, and both the base 501 and the sleeve 502 are made of high-permeability materials. A first bias magnet 503 is disposed within the sleeve 502, and the first bias magnet 503 is fixedly connected to the base 501. The end of the first bias magnet 503 far from the end connected to the base 501 is fixedly connected with a rare earth super magnetostrictive rod 504, an induction coil 505 is wound around the periphery of the super magnetostrictive rod 504, and the length of the induction coil 505 is greater than that of the super magnetostrictive rod 504.
The end of the super magnetostrictive rod 504 far away from the end connected with the first biasing magnet 503 is also connected with a second biasing magnet 506, the end of the second biasing magnet far away from the end connected with the super magnetostrictive rod 504 is fixedly connected with a bearing rod 507, and the end of the bearing rod 507 far away from the end connected with the second biasing magnet 506 passes through the sleeve 502 to be fixedly connected with the rim 103. The bearing rod 507 is also sleeved with a pre-tightening spring 508, and the pre-tightening spring 508 is abutted against the inner wall of the sleeve 502. When a vehicle runs, the tire is stressed and deformed. At this time, the pressure generated by the deformation of the supporting spokes 104 and the rim 103 is transmitted to the force bearing rod 507, and the magnetic domain inside the super magnetostrictive rod 504 deflects under the action of external force, so that the magnetization state is changed. The transformation from the magnetic field to the electric field is realized according to the Faraday's law of electromagnetic induction. The relationship between total magnetization and stress in the magnetostrictive rod 504 can be described by a classical electromechanical coupling model, which is expressed as: the model for total magnetization M and stress is:
Figure BDA0003522756800000071
wherein M represents the total magnetization; manRepresenting a hysteresis-free magnetization; m is a group ofirrRepresents irreversible magnetization; σ denotes an excitation stress applied to the super magnetostrictive rod, and σ ═ Fsin (ω t + Φ), where F denotes an excitation amplitude and ω denotes an excitation frequency; e represents the young's modulus of the magnetostrictive rod 504; ζ represents an energy coupling coefficient per unit volume; c represents a reversible coefficient.
Solving magnetic hysteresis magnetization and irreversible magnetization M through a Jiles-Atherton physical modelanThe total magnetization M is obtained by the above formulairrRelationship to stress:
Figure BDA0003522756800000072
in the formula: h represents an applied bias magnetic field; msRepresents the saturation magnetization of the giant magnetostrictive rod; a represents a hysteresis-free magnetization shape factor.
The bias condition is assumed to be constant and the magnetic field generated by the induced current in the induction coil 505 is ignored. The magnetic induction in the magnetostrictive rod 504 can be expressed as:
Figure BDA0003522756800000073
in the formula: the negative sign indicates that the output induced voltage of the vibration energy collector is negative; n represents the number of turns of the induction coil; t represents time; a represents the cross-sectional area of the coil; mu.s0Represents the magnetic permeability in vacuum, and0＝4π×10-7。
by arranging the energy collecting device 500 on the tire, the tire can continuously generate electric energy in the running process to be supplied to the speed sensor 201, the acceleration sensor 202 and the driving motor 403 for use, no external power supply is needed, and the self-sufficiency of the energy of each component is realized.
In summary, the present application provides a non-pneumatic tire having the following advantageous effects:
(1) thereby the spoke structure through non-inflatable has replaced traditional pneumatic tire's air pressure and has avoided the risk of blowing out, has greatly guaranteed driving safety.
(2) The energy generated by the deformation of the spokes of the non-pneumatic tire is collected by the giant magnetostrictive energy collecting device 500 and is supplied to the sensor on the rim 103 and the control system of the intelligent tire. The autonomous supply of energy of the intelligent tire is realized.
(3) The intelligent non-pneumatic tire which can adjust the width and collect energy can automatically extend the side wheels to increase the width of the tire through monitoring the state of the tire when the vehicle is in a sharp turn or runs at high speed. The increase of the width of the tire can obviously improve the operation stability of the vehicle at high speed, shorten the braking distance of the vehicle and reduce the deformation degree of the tire during bending so as to improve the tracking performance of the vehicle. Therefore, the invention has the advantages of narrow tires and wide tires, effectively prevents the vehicle from sideslip and side turn over, improves the strain capacity of the vehicle under emergency conditions, and realizes stable and safe running under various complex road surface working conditions.
It is important to note that the construction and arrangement of the present application as shown in the various exemplary embodiments is illustrative only. Although only a few embodiments have been described in detail in this disclosure, those skilled in the art who review this disclosure will readily appreciate that many modifications are possible (e.g., variations in sizes, dimensions, structures, shapes and proportions of the various elements, values of parameters (e.g., temperatures, pressures, etc.), mounting arrangements, use of materials, colors, orientations, etc.) without materially departing from the novel teachings and advantages of the subject matter recited in this application. For example, elements shown as integrally formed may be constructed of multiple parts or elements, the position of elements may be reversed or otherwise varied, and the nature or number of discrete elements or positions may be altered or varied. Accordingly, all such modifications are intended to be included within the scope of this application. The order or sequence of any process or method steps may be varied or re-sequenced according to alternative embodiments. In the claims, any means-plus-function clause is intended to cover the structures described herein as performing the recited function and not only structural equivalents but also equivalent structures. Other substitutions, modifications, changes and omissions may be made in the design, operating conditions and arrangement of the exemplary embodiments without departing from the scope of the present application. Therefore, the present application is not limited to a particular embodiment, but extends to various modifications that nevertheless fall within the scope of the appended claims.
Moreover, in an effort to provide a concise description of the exemplary embodiments, all features of an actual implementation may not be described (i.e., those unrelated to the presently contemplated best mode of carrying out the application, or those unrelated to enabling the application).
It should be appreciated that in the development of any such actual implementation, as in any engineering or design project, numerous implementation-specific decisions may be made. Such a development effort might be complex and time consuming, but would nevertheless be a routine undertaking of design, fabrication, and manufacture for those of ordinary skill having the benefit of this disclosure, without undue experimentation.
It should be noted that the above-mentioned embodiments are only used for illustrating the technical solutions of the present application and not for limiting, and although the present application is described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that modifications or equivalent substitutions can be made on the technical solutions of the present application without departing from the spirit and scope of the technical solutions of the present application, which should be covered by the claims of the present application.

Claims (10)

1. An adjustable non-pneumatic tire with a tread having an energy harvesting device, comprising: comprises the steps of (a) preparing a mixture of a plurality of raw materials,
the main tire (100), wherein a speed detection mechanism (200) is arranged on the main tire (100);
the side tire (300), the side tire (300) is arranged on one side of the main tire (100), and the side tire (300) comprises a side tire body (301) and a telescopic mechanism (400) for controlling the contraction of the side tire body (301).
2. A tread adjustable non-pneumatic tire with an energy harvesting device as in claim 1, wherein: the main tire (100) comprises a hub (101), a plurality of first spokes (102) are connected to the hub (101) along the circumferential direction of the hub (101), the first spokes (102) are connected with a rim (103) far away from one end connected with the hub (101), one side of the rim (103) far away from the first spokes (102) is connected with a plurality of supporting spokes (104) along the circumferential direction of the rim (103), the supporting spokes (104) are connected with a main tire body (105) far away from one side connected with the rim (103), an energy collecting device (500) is arranged between the hub (101) and the first spokes (102), and the energy collecting device (500) is used for supplying energy to a speed detection mechanism (200) and a telescopic mechanism (400).
3. A tread adjustable non-pneumatic tire with an energy harvesting device as in claim 2, wherein: the speed detection mechanism (200) comprises a plurality of speed sensors (201) and a plurality of acceleration sensors (202) which are arranged on a rim (103) at intervals, when the speed sensors (201) and the acceleration sensors (202) detect speed information and acceleration of a tire, an electric signal is sent to a main control chip, the main control chip makes a response based on an algorithm, and the side tire body (301) is controlled to stretch through a stretching mechanism (400) so as to realize adjustment of the width of the tire tread.
4. A tread adjustable non-pneumatic tire with an energy harvesting device as in claim 3, wherein: the energy collecting device (500) comprises a base (501) fixedly connected to a hub (101), a sleeve (502) is fixedly connected to the base (501), a first bias magnet (503) is further connected to the base (501), the first bias magnet (503) is located inside the sleeve (502), the first bias magnet (503) is far away from one end fixedly connected with a giant magnetostrictive rod (504) connected with the base (501), an induction coil (505) is wound around the periphery of the giant magnetostrictive rod (504), one end, far away from the first bias magnet (503), of the giant magnetostrictive rod (504) is connected with a second bias magnet (506), one end, far away from the end fixedly connected with the giant magnetostrictive rod (504), of the second bias magnet (506) is connected with a bearing rod (507), the bearing rod (507) penetrates through the sleeve (502) and is connected with a rim (103), and a pre-tightening spring (508) is further sleeved on the bearing rod (507), and the pre-tightening spring (508) is abutted to the inner wall of the sleeve (502).
5. A tread adjustable non-pneumatic tire with energy harvesting devices as in claim 4, wherein: the length of the induction coil (505) is larger than that of the super magnetostrictive rod (504).
6. A tread adjustable non-pneumatic tire with an energy harvesting device as in claim 4 or 5, wherein: the giant magnetostrictive rod (504) is made of a rare earth giant magnetostrictive material, and the base (501) and the sleeve (502) are made of high-permeability materials.
7. A tread adjustable non-pneumatic tire with energy harvesting devices as in any of claims 2 to 5, wherein: telescopic machanism (400) is including installing base (401) on wheel hub (101), install second spoke (402) that a plurality of arc electric telescopic handle constitute on base (401), still be equipped with on base (401) with second spoke (402) one-to-one and be used for driving flexible driving motor (403) of second spoke (402), side child matrix (301) are installed in second spoke (402) and are kept away from the one end that links to each other with base (401).
8. A tread adjustable non-pneumatic tire with an energy harvesting device as in claim 7, wherein: still be connected with collar (404) on rim (103), collar (404) are last to be provided with a plurality of spacing portions (405) with second spoke (402) one-to-one, spacing portion (405) include two stopper (405a), second spoke (402) and the relative one side sliding fit of two stopper (405 a).
9. A tread adjustable non-pneumatic tire with an energy harvesting device as in any one of claims 2, 3, 4, 5, 8, wherein: the side tire body (301) is also provided with a plurality of buffer holes (301 a).
10. A tread adjustable non-pneumatic tire with energy harvesting devices as in any of claims 2 to 4, wherein: the support spokes (104) are formed by a first support strip (104a) and a second support strip (104b) which are connected with each other, and the included angle between the first support strip (104a) and the second support strip (104b) is more than ninety degrees.
CN202210184004.4A 2022-02-28 2022-02-28 Tire tread adjustable non-pneumatic tire with energy collecting device Active CN114454666B (en)

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