CN206287757U - A non-pneumatic tire - Google Patents

Abstract

The utility model provides a non-pneumatic tire. It includes a rim portion, a spoke portion and a tread portion, the spoke portion is arranged on the radially outer side of the rim portion; the tread portion is arranged on the radially outer side of the spoke portion; and the tread portion has a tread layer and a buffer layer arranged on the inner side of the tread layer; The tread layer includes a tread band, and the two ends of the tread band are butted to form the tread layer. The non-pneumatic tire can replace the tread after the tread is worn out, so as to realize the reuse of the tire, meet the demand of the market for low cost, reduce waste, and increase the service life of the tire.

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 air-free tires generate huge noise when running at high speed, and it is difficult to achieve the unity of safety and comfort, that is, there are many defects in the existing air-free tire technology. In addition, the existing non-inflatable tires adopt the form of integrated tread and cushioning. After the tread is worn out, the tread cannot be replaced separately, and it can only be recycled or discarded as a whole.

Utility model content

An object of the present utility model aims at overcoming at least one defect of the existing tires, and creatively provides a novel non-pneumatic tire, which can be used for high-speed, relatively high-speed vehicles, runs smoothly, and significantly improves the performance of non-pneumatic tires. range of use.

A further object of the present utility model is to only replace the tread, so as to improve the service life of the tire and facilitate the replacement of the tread.

In order to achieve at least one of the above objectives, the utility model provides a non-pneumatic tire, which includes a rim portion, a spoke portion and a tread portion, the spoke portion is arranged on the radially outer side of the rim portion; the tread portion is arranged on radially outward of the spoke portion; and

The tread portion has a tread layer and a buffer layer disposed inside the tread layer;

said tread layer comprises a tread band or a plurality of tread band segments; and

The two ends of the tread band are butted to form the tread layer; or, a plurality of the tread band segments are sequentially connected end to end to form the tread layer.

Optionally, 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 of the first interfaces is connected to one of the second joints, and each of the first joints is connected to one of the second interfaces.

Optionally, the buffer layer comprises a buffer strip or a plurality of buffer strip segments; and

The two ends of the buffer strip are butted to form the buffer layer; or, a plurality of buffer strip segments are sequentially connected end to end to form the buffer layer.

Optionally, one end of the buffer belt is provided with at least one third joint and/or at least one third interface; the other end of the buffer belt is provided with at least one fourth interface and/or at least one fourth joint; each Each of the third interfaces is connected to one of the fourth joints, and each of the third joints is connected to one of the fourth interfaces.

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

Optionally, the spoke portion includes a plurality of axial spokes, each of which includes:

A first axial support and a second axial support each extend in a direction parallel to the axis of the rim portion; and the first axial support and the second axial support extend along the rim The radial directions of the parts are arranged sequentially; and

Two radial supports, each radial support connects one end of the first axial support and one end of the second axial support, and the two radial supports are located symmetrically both ends of said axial spokes; and

The plurality of first axial supports of the axial spokes are evenly distributed on the outer peripheral surface of the rim portion along the circumferential direction of the rim portion;

The tread portion is disposed on the second axial support members of the plurality of axial spokes.

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

Optionally, each of the radial supports is in the shape of an arc plate that arches toward the axially outer side of the rim portion.

Optionally, 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 Inside;

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.

Optionally, 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.

The non-pneumatic tire of the utility model can improve the application range of the tire due to the special structure of the spoke portion. In particular, the special structure of the tread part can replace the tread after the tread is worn out, realize tire reuse, meet the market's low-cost demand, reduce waste, and increase the service life of the tire; that is to say, the utility model After the non-pneumatic tire is worn out, the worn tread can be removed and replaced with a new tread to realize tire retreading. The use value of the retreaded tire is equal to that of a new tire, and the whole disassembly process is convenient and simple.

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 , with reference to FIG. 2 and FIG. 3 , 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 . 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 provided on the radially outer side of the spoke portion 30 . The non-pneumatic tire includes a rim portion 20, a spoke portion 30 and a tread portion 40, each of which is manufactured separately, realizing the modular design of the non-pneumatic tire and facilitating 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 market demand for low cost, reduce waste, and increase tire service life.

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 can also be provided at both ends of each buffer zone segment.

In some embodiments of the present invention, as shown in FIG. 2 , 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 located at the two ends of the axial spoke 31 . Moreover, the first axial supports 311 of the plurality of axial spokes 31 are evenly distributed on the outer peripheral surface of the rim portion along the circumferential direction of the rim portion 20; Part 312 on. Specifically, the first axial supports 311 of the plurality of axial spokes 31 are riveted with the rim portion. 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.

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 embodiments of the present invention, as shown in FIG. 2 , the non-pneumatic tire may further include a plurality of power generating devices 50 . 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, as shown in FIGS. 4 and 5 , each power generating device 50 includes at least one power generating part 51 ; each power generating 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.

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 and a tread portion, wherein the spoke portion is disposed on the radially outer side of the rim portion; and the tread portion is disposed on the diameter of the spoke portion. outward; and The tread portion has a tread layer and a buffer layer disposed inside the tread layer; said tread layer comprises a tread band or a plurality of tread band segments; and The two ends of the tread band are butted to form the tread layer; or, a plurality of the tread band segments are sequentially connected end to end to form the tread layer. 2. The non-pneumatic tire according to claim 1, wherein: 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 of the first interfaces is connected to one of the second joints, and each of the first joints is connected to one of the second joints. The second interface connection described above. 3. The non-pneumatic tire according to claim 1, wherein: the buffer layer comprises a buffer zone or a plurality of buffer zone segments; and The two ends of the buffer strip are butted to form the buffer layer; or, a plurality of buffer strip segments are sequentially connected end to end to form the buffer layer. 4. The non-pneumatic tire according to claim 3, wherein: One end of the buffer belt is provided with at least one third joint and/or at least one third interface; The other end of the buffer belt is provided with at least one fourth interface and/or at least one fourth joint; each of the third interfaces is connected to one of the fourth joints, and each of the third joints is connected to one of the fourth joints. The fourth interface is connected. 5. The non-pneumatic tire according to claim 1, wherein: The tread layer and the cushioning layer are glued together, and both are made of annular polyurethane material. 6. The non-pneumatic tire according to claim 1, wherein: The spoke portion includes a plurality of axial spokes, each of which includes: A first axial support and a second axial support each extend in a direction parallel to the axis of the rim portion; and the first axial support and the second axial support extend along the rim The radial directions of the parts are arranged sequentially; and Two radial supports, each radial support connects one end of the first axial support and one end of the second axial support, and the two radial supports are located symmetrically both ends of said axial spokes; and The plurality of first axial supports of the axial spokes are evenly distributed on the outer peripheral surface of the rim portion along the circumferential direction of the rim portion; The tread portion is disposed on the second axial support members of the plurality of axial spokes. 7. The non-pneumatic tire according to claim 6, wherein: Each of the first axial supports and each of the second axial supports is flat. 8. The non-pneumatic tire according to claim 7, 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. 9. The non-pneumatic tire according to claim 6, 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. 10. The non-pneumatic tire according to claim 6, 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.