CN206551794U - A non-pneumatic tire - Google Patents

Abstract

The utility model provides a non-inflatable tire. The hub comprises a rim part, a spoke part, a tread part and a plurality of power generation devices, wherein the spoke part is arranged on the radial outer side of the rim part; the tread portion is arranged on the radial outer side of the spoke portion; and the spoke portion comprising a plurality of axial spokes, each axial spoke comprising a first axial support and a second axial support, each extending in a direction parallel to the axis of the rim portion; the first axial support and the second axial support are sequentially arranged along the radial direction of the rim part; each power generation device is disposed between the first and second axial supports of one axial spoke and is configured to generate electrical energy using a change in distance of the first and second axial supports of that axial spoke. The non-inflatable tire can recycle the energy generated in the deformation of the spoke part in the running process of the tire, particularly for electric vehicles, can convert the deformed energy into electric energy again and store the electric energy in a storage battery.

Description

A non-pneumatic tire

technical field

The utility model relates to a vehicle tire, in particular to a non-pneumatic tire.

Background technique

The tire is the only part of the car that is in direct contact with the ground. Its function is to support the weight of the whole vehicle, and together with the suspension to buffer the unevenness excitation from the road surface, so as to ensure that the vehicle has good ride comfort and smooth driving; to ensure that the wheels and the road surface It has good adhesion to improve vehicle driving, braking and passability, and provide sufficient steering force for the vehicle. Existing automobiles often adopt pneumatic tires, but there are some defects in pneumatic tires when they are used. For example, when using pneumatic tires in summer, they often need to be inflated frequently due to sunshine, and even tire blowouts may occur when the sunshine temperature is too high. Or when the road surface is not smooth enough, the tires not only need to be artificially cautious during use, but also need to replace the whole tire immediately in case of damage and air leakage, which will delay the journey. At present, the emergence of air-free tires has fundamentally solved the problem of puncture of traditional tires, and has been applied to low-speed vehicles such as bicycles, old scooters, and electric vehicles. Existing non-pneumatic tires will produce huge noise when driving at high speed, and it is difficult to achieve the unity of safety and comfort. That is to say, there are still many defects in the existing non-pneumatic tire technology, and in the process of vehicle non-pneumatic tire deformation, Energy cannot be harnessed.

Utility model content

The utility model aims at overcoming at least one defect of the existing tires, and creatively provides a novel non-pneumatic tire, which can make full use of the deformation energy of the spokes, and use the energy to generate electricity for vehicles.

Specifically, the utility model provides a non-pneumatic tire, which includes a rim portion, a spoke portion, a tread portion and a plurality of power generating devices, the spoke portion is arranged on the radially outer side of the rim portion; the tread portion is arranged radially outward of said spoke portion; and

The spoke portion includes a plurality of axial spokes, each of which includes a first axial support and a second axial support extending in a direction parallel to the axis of the rim portion; and the The first axial support and the second axial support are sequentially arranged along the radial direction of the rim portion; the first axial supports of the plurality of axial spokes are arranged along the circumferential direction of the rim portion uniformly distributed on the outer peripheral surface of the rim portion; the tread portion is arranged on the second axial support members of the plurality of axial spokes;

Each of the power generating devices is arranged between the first axial support and the second axial support of one axial spoke, and is configured to utilize the first axial support of the axial spoke A change in the distance between the support and the second axial support generates electrical energy.

Further, each of the first axial supports and each of the second axial supports is flat.

Further, each of the axial spokes further includes two radial supports, and each of the radial supports connects one end of the first axial support and one end of the second axial support, And the two radial supports are symmetrically arranged at both ends of the axial spokes.

Further, each of the radial support members is in the shape of an arc plate arched axially outward of the rim portion.

Further, each of the power generation devices includes at least one power generation unit; each of the power generation units has:

a rod extending in a radial direction of the rim portion;

Two generators are respectively arranged at both ends of the rod, and are respectively in contact with or fixedly connected with the first axial support and the second axial support;

The spring is installed on the rod and arranged between the two generators.

Further, the number of the power generating devices is less than the number of the axial spokes.

Further, the spoke portion further includes a plurality of circumferential spokes, each of which is in the shape of a ring, arranged coaxially with the rim portion, and located in the annular space defined by the plurality of axial spokes. ;

Some of the circumferential spokes are arranged on the first axial support members of the plurality of axial spokes;

Some of the circumferential spokes are arranged on the second axial support members of the plurality of axial spokes;

The rest of the circumferential spokes are arranged on the radial support members of the plurality of axial spokes.

Further, the first axial support members of the plurality of axial spokes are riveted with the rim portion; and

The second axial support members of the plurality of axial spokes are respectively arranged in the plurality of locking grooves on the inner surface of the tread portion.

Further, the tread portion has a tread layer and a buffer layer provided inside the tread layer.

Further, the tread layer and the buffer layer are glued together, and both are made of annular polyurethane material.

The non-pneumatic tire of the utility model can recover and utilize the energy in the deformation of the spoke part during the running process of the tire due to the special structure of the spoke part and the power generation device arranged in the spoke part, thereby improving the utilization rate of energy recovery. Especially for electric vehicles, the deformed energy can be re-converted into electrical energy and stored in the battery to improve energy utilization efficiency.

According to the following detailed description of specific embodiments of the utility model in conjunction with the accompanying drawings, those skilled in the art will be more aware of the above and other objectives, advantages and features of the utility model.

Description of drawings

Hereinafter, some specific embodiments of the present utility model will be described in detail in an exemplary rather than restrictive manner with reference to the accompanying drawings. The same reference numerals in the drawings designate the same or similar parts or parts. Those skilled in the art will appreciate that the drawings are not necessarily drawn to scale. In the attached picture:

Fig. 1 is a schematic structural view of a non-pneumatic tire according to an embodiment of the present invention;

Fig. 2 is a schematic structural view of the spoke portion of the non-pneumatic tire shown in Fig. 1;

Fig. 3 is a schematic structural diagram of a tread portion in the non-pneumatic tire shown in Fig. 1;

Fig. 4 is a schematic structural diagram of axial spokes in the spoke portion of the non-pneumatic tire shown in Fig. 1;

Fig. 5 is a schematic structural view of a power generating unit of a power generating device in a non-pneumatic tire according to an embodiment of the present invention.

detailed description

Fig. 1 is a schematic structural view of a non-pneumatic tire according to an embodiment of the present invention. As shown in FIG. 1 and referring to FIG. 2 to FIG. 5 , the embodiment of the present invention provides a non-pneumatic tire. The non-pneumatic tire may include a rim portion 20 , a spoke portion 30 and a tread portion 40 , and a power generating device 50 . The rim portion 20 mainly links the axle and the members of the spoke portion 30 . The spoke portion 30 is disposed on the radially outer side of the rim portion 20 , and the spoke portion 30 is the main component and core component of the non-pneumatic tire, bearing the contact pressure of the tire and deformed by extrusion. The tread portion 40 is disposed radially outside the spoke portion 30 , and the tread portion 40 may include a tread layer 41 and a buffer layer 42 disposed inside the tread layer 41 .

Further, the spoke portion 30 includes a plurality of axial spokes 31 , and each axial spoke 31 includes a first axial support 311 , a second axial support 312 and two radial supports 313 . The first axial support 311 and the second axial support 312 both extend in a direction parallel to the axis of the rim portion 20; Set in sequence in the direction. Each radial support 313 connects one end of the first axial support 311 and one end of the second axial support 312, and the two radial supports 313 are symmetrically arranged on the first axial support 311 and the second axial support 311. The two ends of the axial support member 312 are the two ends of the axial spokes 31 . Moreover, the first axial support members 311 of the plurality of axial spokes 31 are evenly distributed on the outer peripheral surface of the rim portion 20 along the circumferential direction of the rim portion 20; on the support 312. Specifically, the first axial supports 311 of the plurality of axial spokes 31 are riveted with the rim portion 20 . The second axial supports 312 of the plurality of axial spokes 31 are respectively arranged in the plurality of engaging grooves on the inner surface of the tread portion 40, that is, the second axial supports 312 of the plurality of axial spokes 31 are engaged with the buffer layer 42. In this embodiment, the number of equal parts in the circumferential direction of the plurality of axial spokes 31 depends on the needs, and in the present invention, the number of equal parts in the circumferential direction can be divided into 50 and evenly distributed.

Each power generating device 50 is arranged between the first axial support 311 and the second axial support 312 of an axial spoke 31, and is configured to utilize the first axial support 311 and the second axial support 312 of the axial spoke 31. The change of the distance between the two axial supports 312 generates electric energy. For example, each power generation device 50 includes at least one power generation part 51 ; each power generation part 51 has a rod 511 , a spring 513 and two generators 512 . The rod 511 extends in the radial direction of the rim portion 20 . The two generators 512 are respectively arranged at two ends of the rod member 511 , and are respectively in contact with or fixedly connected with the first axial support member 311 and the second axial support member 312 . The spring 513 is mounted on the rod 511 and disposed between the two generators 512 . The number of power generating devices 50 may be less than the number of axial spokes 31 , preferably, the number of axial spokes 31 may be 4 to 8 times, preferably 5 times, the number of power generating devices 50 . For example, there can be 10 power generating devices 50 , and each power generating device 50 has 2 power generating parts 51 arranged in 10 axial spokes 31 out of 50 axial spokes 31 and evenly distributed along the circumferential direction.

In this embodiment, during the working process of the non-pneumatic tire, the ground transmits the impact force to the tread layer 41, the tread layer 41 is squeezed and ground friction produces wear, and the ground impact force is transmitted to the buffer layer 42, The buffer layer 42 can slow down the rigid impact force from the ground and play a role of shock absorption. The buffer layer 42 transmits the ground impact force to the spoke portion 30, and the spoke portion 30 is compressed and deformed, and the generator 512 in the compressed spoke portion 30 generates electric energy, which is transmitted to the battery of the vehicle through the line. The vehicle is preferably an electric vehicle. Specifically, the spoke part 30 will be compressed due to the compression of the buffer layer 42 and the rim part 20, and the two generators 512 at both ends of the rod 511 will be compressed. When the two generators 512 are squeezed by external force, the spring 513 will be compressed. When deformed, the length of the rod 511 remains unchanged, and the generator 512 is compressed to generate electric energy.

In some embodiments of the present utility model, each first axial support 311 and each second axial support 312 are in the shape of a flat plate. The ratio of thickness to width of each first axial support 311 and each second axial support 312 is 5/9 to 10/11. For example, each first axial support 311 and each second axial support 312 can be 8 mm to 12 mm, preferably 10 mm, and the width can also be adjusted as required. Each radial support member 313 is in the shape of an arc-shaped plate arched toward the axially outer side of the rim portion 20 , and the specific arc is determined according to requirements. Preferably, the arc is consistent with the outer contour of the non-pneumatic tire.

In order to further improve the supporting performance and cushioning performance of the non-pneumatic tire, the spoke part 30 also includes a plurality of circumferential spokes 32, each circumferential spoke 32 is in the shape of a ring, and is coaxially arranged with the rim part 20, and is located on multiple axes. to the annular space defined by the spokes 31. Some of the circumferential spokes 32 are arranged on the first axial support member 311 of the plurality of axial spokes 31, some of the circumferential spokes 32 are arranged on the second axial support member 312 of the plurality of axial spokes 31, and the rest of the circumferential spokes 32 The radial support 313 is disposed on the plurality of axial spokes 31 . For example, the number of circumferential spokes 32 may be six. The two circumferential spokes 32 are installed on the plurality of first axial supports 311 , and are located at positions that divide the first axial supports 311 into three equal parts, or positions that divide two sides of the first axial supports 311 into equal parts. The two circumferential spokes 32 are installed on the plurality of second axial supports 312, and are located at positions where the second axial supports 312 are divided into three equal parts, or two sides of the second axial supports 312 are divided into four equal parts. The other two circumferential spokes 32 are respectively arranged on the radial support members 313 on both sides of the axial spoke 31 . The entire spoke portion 30 may be designed symmetrically with respect to a plane which is perpendicular to the axis of the rim portion 20 .

In some implementations of the present utility model, the non-pneumatic tire includes parts such as the rim part 20, the spoke part 30 and the tread part 40, and each part is manufactured separately, which realizes the modular design of the non-pneumatic tire and is convenient for installation and manufacture. In particular, after the tread portion 40 is worn out, only the tread portion 40 needs to be replaced to realize tire reuse, meet the market demand for low cost, reduce waste, and increase the service life of the tire.

Further, the tread portion 40 may also include two parts, a tread layer 41 and a buffer layer 42 disposed inside the tread layer 41 . The buffer layer 42 is located inside the tread layer 41 to buffer the impact force of the road surface and protect the spoke portion 30 . Adhesive bonding is adopted between the tread layer 41 and the buffer layer 42, and glue that is relatively tight and easy to separate can be used.

Further, in this embodiment, both the tread layer 41 and the buffer layer 42 may be made of annular polyurethane material. The tread layer 41 includes a tread band, and the two ends of the tread band 41 are butted to form the tread layer 41 . For example, one end of the tread band is provided with at least one first joint and/or at least one first interface; the other end of the tread band is provided with at least one second interface and/or at least one second joint; each first interface It is connected with a second connector, and each first connector is connected with a second interface. The two ends of the tread band can be coated with glue between the interface and the joint. In some optional embodiments, the tread layer 41 includes a plurality of tread band segments, and the plurality of tread band segments are sequentially connected end to end to form the tread layer 41 . Joints or interfaces may also be provided at both ends of each tread band segment.

In this embodiment, the tread portion 40 can replace only the tread layer 41 after the tread layer 41 is damaged, and replace the tread layer 41 and the breaker layer 42 at the same time when both the tread layer 41 and the breaker layer 42 are worn. That is, the tread portion 40 is a detachable tread portion 40, and the tread layer 41 in the tread portion 40 is a detachable tread layer 41. When the tire is worn to the wear mark, when the tire spoke portion 30 is not damaged Under this condition, the tire can be regenerated only by replacing the tread, and the wear mileage of the new tire can be obtained from the new tire. Compared with the traditional pneumatic tire and the existing non-pneumatic tire design, this will greatly reduce the cost of using the tire and reduce tire waste. , Improve the degree of environmental protection. When the non-pneumatic tire is running, the tread layer 41 is in contact with the ground, and the contact pressure is sequentially transmitted to the cushion layer 42, the spoke portion 30, the rim portion 20, and finally to the axle.

In some embodiments of the present invention, the buffer layer 42 includes a buffer strip, and the two ends of the buffer strip are butted to form the buffer layer 42 . One end of the buffer zone is provided with at least one third joint and/or at least one third interface; the other end of the buffer zone is provided with at least one fourth interface and/or at least one fourth joint; each third interface is connected to a fourth The joints are connected, and each third joint is connected with a fourth interface. The two ends of the buffer strip are between the interface and the joint, and the glue can be applied first. In some optional embodiments, the buffer layer 42 includes a plurality of buffer strip segments, and the plurality of buffer strip segments are sequentially connected end to end to form the buffer layer 42 . Joints or interfaces may also be provided at both ends of each buffer zone segment.

So far, those skilled in the art should recognize that although a number of exemplary embodiments of the present invention have been shown and described in detail herein, they can still be used according to the present invention without departing from the spirit and scope of the present invention. Many other variations or modifications that conform to the principles of the utility model are directly determined or derived from the disclosed content of the new model. Therefore, the scope of the present invention should be understood and deemed to cover all such other variations or modifications.

Claims (10)

1. A non-pneumatic tire, characterized in that it comprises a rim portion, a spoke portion, a tread portion and a plurality of power generating devices, the spoke portion is arranged on the radially outer side of the rim portion; the tread portion is arranged on the radially outward of said spoke portion; and The spoke portion includes a plurality of axial spokes, each of which includes a first axial support and a second axial support extending in a direction parallel to the axis of the rim portion; and the The first axial support and the second axial support are sequentially arranged along the radial direction of the rim portion; the first axial supports of the plurality of axial spokes are arranged along the circumferential direction of the rim portion uniformly distributed on the outer peripheral surface of the rim portion; the tread portion is arranged on the second axial support members of the plurality of axial spokes; Each of the power generating devices is arranged between the first axial support and the second axial support of one axial spoke, and is configured to utilize the first axial support of the axial spoke A change in the distance between the support and the second axial support generates electrical energy. 2. The non-pneumatic tire according to claim 1, wherein: Each of the first axial supports and each of the second axial supports is flat. 3. The non-pneumatic tire according to claim 1, wherein: Each of the axial spokes also includes two radial supports, each of the radial supports connects one end of the first axial support with one end of the second axial support, and the two The radial supports are symmetrically arranged at both ends of the axial spokes. 4. The non-pneumatic tire according to claim 3, wherein: Each of the radial supports is in the shape of an arc-shaped plate arched toward the axially outer side of the rim portion. 5. The non-pneumatic tire according to claim 1, wherein each of the power generating devices includes at least one power generating part; each of the power generating parts has: a rod extending in a radial direction of the rim portion; Two generators are respectively arranged at both ends of the rod, and are respectively in contact with or fixedly connected with the first axial support and the second axial support; The spring is installed on the rod and arranged between the two generators. 6. The non-pneumatic tire according to claim 1, wherein: The number of said generating means is less than the number of said axial spokes. 7. The non-pneumatic tire according to claim 1, wherein: The spoke portion further includes a plurality of circumferential spokes, each of which is in the shape of a ring, arranged coaxially with the rim portion, and located in an annular space defined by the plurality of axial spokes; Some of the circumferential spokes are arranged on the first axial support members of the plurality of axial spokes; Some of the circumferential spokes are arranged on the second axial support members of the plurality of axial spokes; The rest of the circumferential spokes are arranged on the radial support members of the plurality of axial spokes. 8. The non-pneumatic tire according to claim 1, wherein: the plurality of first axial supports of the axial spokes are riveted to the rim portion; and The second axial support members of the plurality of axial spokes are respectively arranged in the plurality of locking grooves on the inner surface of the tread portion. 9. The non-pneumatic tire according to claim 1, wherein: The tread portion has a tread layer and a breaker layer provided inside the tread layer. 10. The non-pneumatic tire according to claim 9, wherein: The tread layer and the cushioning layer are glued together, and both are made of annular polyurethane material.