CN213441929U

CN213441929U - Non-pneumatic tire with good recovery performance

Info

Publication number: CN213441929U
Application number: CN202022143887.3U
Authority: CN
Inventors: 夏文俊; 余承阳; 夏阳俊
Original assignee: Zhejiang Peiyi Technology Co ltd
Current assignee: Zhejiang Peiyi Technology Co ltd
Priority date: 2020-09-25
Filing date: 2020-09-25
Publication date: 2021-06-15
Anticipated expiration: 2030-09-25

Abstract

The utility model relates to an airless tire with good restorability, which comprises a tire tread, an inner hub and an outer rim, wherein the tire tread is sleeved on the outer rim, and the inner hub is connected with the outer rim through a wheel spoke plate distributed along the circumferential direction; the spoke plate comprises a spoke plate main body with a nonlinear cross section, and hook structures are integrally formed and connected with two ends of the spoke plate main body; positioning grooves for clamping the hook structures are formed in the outer side of the inner hub and the inner side of the outer ring; the hook structure is connected with the end part of the spoke plate main body through a first transition arc and a second transition arc; the convex directions of the first transition circular arc and the second transition circular arc are opposite to each other. When the tire is pressed, the acting force at the joint of the hook structure and the spoke plate main body can be mutually offset, so that the service life of the spoke plate and the recovery capability after pressure unloading are greatly improved.

Description

Non-pneumatic tire with good recovery performance

Technical Field

The utility model relates to the technical field of tires, specifically say, relate to a recovery can good no pneumatic tire.

Background

The airless tire is a tire which does not rely on air to realize supporting force, does not need inflation and is not afraid of puncture, thereby fundamentally solving the problem of tire burst and saving a large amount of rubber materials. For example, patent application publication No. CN 110091669A: a kind of good buffer shock-absorbing performance has no pneumatic tire, there are wheel webs distributed circumferentially between the inner and outer rim in this has no pneumatic tire, the both ends of wheel web connect with the hook structure, this kind of pneumatic tire finds in the use test and still has the following disadvantage: after the tire is deformed under pressure, the recovery capability is insufficient. Accordingly, there is a need for improvements and optimizations to existing non-pneumatic tires.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to overcome the above-mentioned not enough that exists among the prior art, and provide a combined material suitable for making airless tire to and have this combined material's airless tire and assembly method thereof.

The utility model provides a technical scheme that above-mentioned problem adopted is: the airless tire with good restorability comprises a tire tread, an inner hub and an outer rim, wherein the tire tread is sleeved on the outer rim, and the inner hub is connected with the outer rim through a spoke plate distributed along the circumferential direction; the spoke plate comprises a spoke plate main body with a nonlinear cross section, and hook structures are integrally formed and connected with two ends of the spoke plate main body; positioning grooves for clamping hook structures are formed in the outer side of the inner hub and the inner side of the outer ring; the method is characterized in that: the hook structure is connected with the end part of the spoke plate main body through a first transition arc and a second transition arc; one end of the first transition arc is connected with the end part of the spoke plate main body, the other end of the first transition arc is connected with one end of the second transition arc, and the other end of the second transition arc is connected with one end of the hook structure; the convex directions of the first transition circular arc and the second transition circular arc are opposite to each other.

Preferably, the wheel spoke plate is made of spring steel sheets with yield strength higher than 850 MPa.

Preferably, the spoke plate main body is in one of a circular arc shape, an S shape or a 3 shape.

Preferably, the tire tread is a rubber tread.

The utility model also provides another kind of technical scheme: the airless tire with good restorability comprises a tire tread, an inner hub and an outer rim, wherein the tire tread is sleeved on the outer rim, and the inner hub is connected with the outer rim through a spoke plate distributed along the circumferential direction; the method is characterized in that: the cross section of the wheel spoke plate is nonlinear, and the inner hub, the wheel spoke plate and the outer wheel ring are integrally formed by pouring engineering plastics.

Preferably, the cross-section of the wheel disk is one of circular arc, S-shaped or 3-shaped.

Preferably, the engineering plastic is nylon.

Compared with the prior art, the utility model, have following advantage and effect:

1. in the structural design of the wheel spoke plate, the joint of the hook structure and the wheel spoke plate main body is improved, a connection mode of two transition arcs is adopted, the protruding directions of the two transition arcs are opposite to each other, when a tire is pressed, the acting forces of the joint of the hook structure and the wheel spoke plate main body can be mutually offset, and therefore the service life of the wheel spoke plate and the recovery capability after pressure unloading are greatly improved;

2. the tire which is integrally formed by the inner hub, the outer rim and the spoke plate by adopting engineering plastics through a pouring process has better resilience.

Drawings

In order to illustrate the embodiments of the present invention or the solutions in the prior art more clearly, the drawings used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and other drawings can be obtained by those skilled in the art without creative efforts.

Fig. 1 is a schematic front view of an airless tire according to example 1 of the present invention (the spokes are arranged in the same direction).

Fig. 2 is a schematic front view of an airless tire according to example 1 of the present invention (two adjacent spokes are symmetrically arranged with respect to a radial centerline therebetween).

Fig. 3 is a schematic structural view of a wheel disc in embodiment 1 of the present invention.

FIG. 4 is a schematic illustration of a further embodiment employing a 3-shaped wheel web.

FIG. 5 is a schematic illustration of a construction in which a "S" shaped wheel web is used in other embodiments.

Fig. 6 is a schematic structural view of an airless tire according to embodiment 2 of the present invention.

Description of reference numerals: the tire tread 1, the inner hub 2, the outer rim 4, the wheel web 3, the web body 31, the hook structure 32, the first transition arc 33, the second transition arc 34.

Detailed Description

The present invention will be described in further detail by way of examples with reference to the accompanying drawings, which are illustrative of the present invention and are not intended to limit the present invention.

Example 1.

See fig. 1-5.

Example 1 discloses a non-pneumatic tire having excellent restorability, which includes a tire tread 1, an inner hub 2, and an outer rim 4. The tire tread 1 is made of rubber and is sleeved on the outer rim 4. The inner hub 2 is connected to an outer rim 4 via circumferentially distributed spokes 3.

In this embodiment 1, the spoke plate 3 is made of a spring steel sheet, and can elastically deform when subjected to radial pressure and recover when the pressure is relieved, and it is found through simulation experiments that, when the deformation of the spoke plate 3 reaches 20%, the spoke plate does not deform plastically, and can recover to the original shape after pressure is relieved, so that the yield strength of the spoke plate is higher than 850 Mpa.

In this embodiment 1, the wheel spoke 3 includes a spoke main body 31 with an arc-shaped cross section, and hook structures 32 are integrally formed and connected to two ends of the spoke main body 31; the outer side of the inner hub 2 and the inner side of the outer rim 4 are provided with locating slots for engaging the hook formations 32. The wheel disc 3 is arranged in two ways: one is that the spokes are arranged in the same direction, see fig. 1; the other is that every two adjacent spokes are symmetrically arranged about a radial centerline therebetween, see fig. 2.

Of course, in other embodiments, the shape of the web body 31 may be designed to be "S" shaped, "3" shaped, etc., as shown in FIGS. 4 and 5.

In the embodiment 1, the hook structure 32 is connected with the end of the web main body 31 through the first transition arc 33 and the second transition arc 34; one end of the first transition arc 33 is connected with the end of the spoke plate main body 31, the other end of the first transition arc 33 is connected with one end of the second transition arc 34, and the other end of the second transition arc 34 is connected with one end of the hook structure 32; the first transition circular arc 33 and the second transition circular arc 34 are opposite in projecting direction to each other.

In this embodiment 1, the protruding directions of the two transition arcs are opposite to each other, and when the tire is pressed, the acting forces at the connection part of the hook structure and the spoke plate main body can be mutually offset, so that the service life of the spoke plate and the recovery capability after pressure unloading are greatly improved.

Example 2.

Referring to fig. 6, the present embodiment 2 also discloses an airless tire, which is different from the present embodiment 2 in that: the inner hub 2, the outer rim 4 and the spoke plate 3 are all made of engineering plastics, and during production and processing, the three parts are integrally formed through casting, so that hook structures in the embodiment 1 do not need to be arranged at two ends of the spoke plate 3, and in the embodiment 2, the spoke plate 3 can be in any one of a circular arc shape, a 3-shaped shape or an S-shaped shape. The engineering plastic is nylon.

In embodiment 2, the integrated tire main body support portion for supporting the tire tread, which is formed by integrally molding the inner hub 2, the outer rim 4 and the spoke 3, has greatly improved performance, including cushioning performance, mechanical strength, impact resistance, toughness and weight, which are superior to those of the conventional non-pneumatic tire.

Although the present invention has been described with reference to the above embodiments, it should not be construed as being limited to the scope of the present invention, and any modifications and alterations made by those skilled in the art without departing from the spirit and scope of the present invention should fall within the scope of the present invention.

Claims

1. The airless tire with good restorability comprises a tire tread (1), an inner hub (2) and an outer rim (4), wherein the tire tread (1) is sleeved on the outer rim (4), and the inner hub (2) is connected with the outer rim (4) through a spoke plate (3) distributed along the circumferential direction; the spoke plate (3) comprises a spoke plate main body (31) with a nonlinear cross section, and hook structures (32) are integrally formed and connected with two ends of the spoke plate main body (31); positioning grooves for clamping hook structures (32) are formed in the outer side of the inner hub (2) and the inner side of the outer ring (4);

the method is characterized in that: the hook structure (32) is connected with the end part of the spoke plate main body (31) through a first transition arc (33) and a second transition arc (34); one end of the first transition arc (33) is connected with the end part of the spoke plate main body (31), the other end of the first transition arc (33) is connected with one end of the second transition arc (34), and the other end of the second transition arc (34) is connected with one end of the hook structure (32); the convex directions of the first transition circular arc (33) and the second transition circular arc (34) are opposite to each other.

2. The non-pneumatic tire with excellent restorability according to claim 1, characterized in that: the wheel spoke plate (3) is made of spring steel sheets with yield strength higher than 850 Mpa.

3. The non-pneumatic tire with excellent restorability according to claim 1, characterized in that: the spoke plate main body (31) is in one of a circular arc shape, an S shape or a 3 shape.

4. The non-pneumatic tire with excellent restorability according to claim 1, characterized in that: the tire tread (1) adopts a rubber tread.

5. The airless tire with good restorability comprises a tire tread (1), an inner hub (2) and an outer rim (4), wherein the tire tread (1) is sleeved on the outer rim (4), and the inner hub (2) is connected with the outer rim (4) through a spoke plate (3) distributed along the circumferential direction; the method is characterized in that: the cross section of spoke plate (3) is nonlinear type, interior hub (2), spoke plate (3) and outer rim (4) adopt engineering plastics through pouring integrated into one piece.

6. The non-pneumatic tire with excellent restorability according to claim 5, wherein: the cross section of the wheel spoke plate (3) is in one of circular arc shape, S shape or 3 shape.

7. The non-pneumatic tire with excellent restorability according to claim 5, wherein: the engineering plastics are nylon.