CN217455529U

CN217455529U - Multilayer buffer type non-pneumatic tire

Info

Publication number: CN217455529U
Application number: CN202221589231.7U
Authority: CN
Inventors: 姜锡洲; 肖振; 李崇兵; 姜洪旭
Original assignee: Prinx Chengshan Shandong Tire Co Ltd
Current assignee: Prinx Chengshan Shandong Tire Co Ltd
Priority date: 2022-06-24
Filing date: 2022-06-24
Publication date: 2022-09-20
Anticipated expiration: 2032-06-24

Abstract

The utility model discloses a multilayer buffering formula non-pneumatic tire, relate to the non-pneumatic tire or the solid tyre technical field that general vehicle used, it is complicated to aim at solving current pneumatic tire and has the structure, high in production cost, be unfavorable for the technical problem of extensive popularization and application, it includes inner tube layer and cover tyre layer, inner tube layer assembles on the outer peripheral face of current rigidity wheel hub, cover tyre layer and inner tube layer coaxial setting, be provided with two at least supporting layers between inner tube layer and cover tyre layer coaxial, between inner tube layer and adjacent supporting layer, between two adjacent supporting layers, be provided with the support chamber between cover tyre layer and the adjacent supporting layer respectively, be equipped with a plurality of cushion columns along inner tube layer radial in the support chamber, its simple structure; the forming can be realized by a layer-by-layer attaching mode, the production difficulty is small, the cost is low, and the method is suitable for large-scale popularization and application.

Description

Multilayer buffer type non-pneumatic tire

Technical Field

The utility model relates to a non-pneumatic tire or solid tyre that general vehicle used, especially a non-pneumatic tire of multilayer buffering formula.

Background

As is well known, the birth and development of automobiles are great achievements of world science and technology progress, and tires cannot be separated from the support of automobile bodies, the travel of roads and the buffer of impact.

At present, most of tires generally used by people are pneumatic tires made of rubber materials, such as inner tube tires widely used by large-sized vehicles, wherein the inner tube tires are used for inflating air into the inner tube tires and are used for supporting outer tires wrapped on the periphery of the inner tube tires; also, as a tubeless tire widely used for small vehicles, air is directly pressed into a tire cavity, and the sealing performance is ensured by the matching of an outer tire and a rim. However, the pneumatic tire is easily punctured or scratched by a sharp object, so that air filled in the tire is leaked, and if a tire burst event occurs during driving, the driving safety of a vehicle is seriously affected.

The non-pneumatic tire enters the public vision by virtue of the advantages of maintenance-free, leakage-free and tire burst-free. In the early development of non-pneumatic tires, technicians focused on the development direction of arranging damping holes on tire bodies through molds, and the precision requirements of the products on the molds were high, which was not favorable for large-scale popularization and application.

In chinese utility model patent application No. 202121562441.2, just disclosed "a resistant comfortable non-pneumatic tire that carries", it includes rim, rim cooperation inner circle, antidetonation supporter, outer buffer layer, the belted tread composite bed that the nested setting was set up, and wherein, the antidetonation supporter comprises cylindrical spring ring array. This patent technical scheme uses the spring as main supporter, has the advantage that bearing capacity is high, the buffering shock attenuation performance is good. In the specification of this patent, a specific embodiment is given, i.e., each structural unit is composed of 11 cylindrical springs, and 95 structural units are composed of a spring annular array. Obviously, a large number of cylindrical spring annular arrays are arranged between the rim fitting inner ring and the outer buffer layer, and the structure is complex and the production cost is high.

Disclosure of Invention

In order to overcome the defects of complex structure, high production cost and being not beneficial to large-scale popularization and application in the prior art, the utility model provides a multilayer buffer type non-pneumatic tire which has simple structure, low production cost and is beneficial to large-scale popularization and application.

The utility model provides a technical scheme that its technical problem adopted is: the utility model provides a non-pneumatic tire of multilayer buffering formula, its includes inner tube layer and cover tyre layer, outer tyre layer and inner tube layer coaxial setting, its characterized in that:

the inner tube layer and the outer tube layer are coaxially provided with at least two supporting layers, supporting cavities are respectively arranged between the inner tube layer and the adjacent supporting layers, between the two adjacent supporting layers and between the outer tube layer and the adjacent supporting layers, and a plurality of buffer columns are arranged in the supporting cavities along the radial direction of the inner tube layer.

Preferably, the buffer columns arranged in the same supporting cavity are uniformly distributed along the circumferential direction of the supporting cavity, and are periodically distributed on the circumferential surface of the supporting cavity in an S shape or a rhombic shape.

Preferably, the buffer column is cylindrical, and the bottom surface of the buffer column is in contact connection with the corresponding inner tube layer or the corresponding support layer or the corresponding outer tube layer.

Preferably, the diameter of the buffer column is gradually reduced from two sides of the wheel to the plane of the wheel.

Preferably, the buffer column is made of natural rubber materials or butyl rubber materials.

Preferably, the number of the supporting layers is 2-7.

Preferably, the support layer is made of a metal material or a polyurethane material.

The utility model comprises an inner tyre layer and an outer tyre layer, wherein the outer tyre layer is coaxially arranged with the inner tyre layer, at least two supporting layers are coaxially arranged between the inner tyre layer and the outer tyre layer, supporting cavities are respectively arranged between the inner tyre layer and the adjacent supporting layers, between the two adjacent supporting layers and between the outer tyre layer and the adjacent supporting layers, a plurality of buffer columns are arranged in the supporting cavities along the radial direction of the inner tyre layer, and the structure is simple; the forming can be realized by a layer-by-layer attaching mode, the production difficulty is small, the cost is low, and the method is suitable for large-scale popularization and application.

Drawings

Fig. 1 is a schematic perspective view of a structure of the present invention;

FIG. 2 is a front view of FIG. 1;

fig. 3 is a schematic view showing the arrangement of the buffer posts on the circumferential surface of the support chamber according to the present invention, wherein,

a) the buffer columns are arranged in an S shape, and b) the buffer columns are arranged in a diamond shape;

FIG. 4 is a schematic view showing the expansion of the circumferential surface of the support chamber when the buffer posts are arranged in an "S" shape;

fig. 5 is a view in the direction a in fig. 4.

The labels in the figure are: 1. the tire comprises a buffer column, 2 parts of an inner tire layer, 3 parts of an outer tire layer, 4 parts of a supporting layer and 5 parts of a supporting cavity.

Detailed Description

Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings.

As shown in fig. 1 and 2, the multi-layer cushion type non-pneumatic tire comprises an inner tire layer 2 and an outer tire layer 3.

In fig. 1 and 2, the outer tire layer 3 is provided coaxially with the inner tire layer 2. In use, the inner tube layer 2 is fitted over the outer periphery of a rigid hub (not shown); the outer tube layer 3 is used for contacting with ground, requires that it has the hardness height, grabs the characteristics that the ground nature is strong, the wearability is good the utility model discloses in, outer tube layer 3 uses the ordinary radial pneumatic tire's of no band layer tread layer to practice thrift processing, material cost.

As shown in fig. 1 and 2, at least two support layers 4 are coaxially disposed between the inner tube layer 2 and the outer tube layer 3, support cavities 5 are respectively disposed between the inner tube layer 2 and the adjacent support layers 4, between the adjacent two support layers 4, and between the outer tube layer 3 and the adjacent support layers 4, and a plurality of cushion columns 1 are disposed in the support cavities 5 along the radial direction of the inner tube layer 2.

The cushion column 1 provides radial support for the tire, and can be made of rubber materials with strong elasticity, such as natural rubber materials or butyl synthetic rubber materials. The utility model discloses in, the butyl rubber material that buffer column 1 use cost is low, the antivibration is good.

The supporting layer 4 arranged between the inner tire layer 2 and the outer tire layer 3 is combined with the buffer column 1 to transmit torque to the tire, and the supporting layer can be made of metal materials such as aluminum alloy or polyurethane materials. In the utility model, the support layer 4 is made of a polyurethane material with good vibration resistance and convenient connection.

The number of the support layers 4 is set to be related to the overall size of the tire, and according to the size of the existing pneumatic tire, on the premise that the thickness of the support layers 4 is 6-21 mm, the fact that the non-pneumatic tire does not have the carrying characteristic of a heavy truck is considered, and experiments show that 2-7 support layers 4 of the non-pneumatic tire matched with a car can be set. As shown in fig. 1 and 2, the present invention takes the supporting layer 4 as an example and 2.

It can be easily seen that the cushion column 1 and the supporting layer 4 have limited cushion performance for the tire, and the supporting cavity 5 is stressed and deformed, so that the damping and buffering guarantee can be further provided for the tire, and the use comfort is improved.

The buffer posts 1 may be cylindrical or prismatic. Consider that the tire when going at high speed, support chamber 5 the internal existence high velocity air current, for the resistance of furthest reduction to high velocity air current, the utility model provides a bumping post 1 is cylindricly. Namely a buffer column 1 arranged in a support cavity 5 between an inner tire layer 2 and a support layer 4, and two bottom surfaces of the buffer column 1 are respectively connected with the inner tire layer 2 and the support layer 4; the two bottom surfaces of the buffer column 1 arranged in the support cavity 5 between the two adjacent support layers 4 are respectively connected with the two support layers 4; the two bottom surfaces of the buffer column 1 arranged in the support cavity 5 between the support layer 4 and the outer tire layer 3 are respectively connected with the support layer 4 and the outer tire layer 3.

As shown in fig. 2 and 3, the buffer posts 1 arranged in the same support cavity 5 are uniformly distributed along the circumferential direction of the support cavity 5, so that the grounding pressure of the utility model is uniform; meanwhile, in order to solve the problem of 'discrete' ground pressure of the tire in the rolling process and further improve the driving comfort, as shown in fig. 3, the tire is periodically arranged on the circumferential surface of the support cavity 5 in an 'S' shape or a diamond shape.

In order to increase the wrapping property of the tire, as shown in fig. 4 and 5, the diameter of the cushion post 1 is gradually reduced from both sides of the wheel to the plane of the wheel. The reduction of the diameter size of the cushion column 1 weakens the bearing performance of the cushion column 1 on the plane of the wheel, and gradually disperses the grounding pressure on the tire to the cushion columns 1 on the two sides of the wheel.

The utility model comprises an inner tyre layer, a supporting layer and an outer tyre layer, wherein supporting cavities are respectively arranged between the inner tyre layer and the adjacent supporting layer, between the two adjacent supporting layers and between the outer tyre layer and the adjacent supporting layer, and a plurality of buffer columns are arranged in the supporting cavities along the radial direction of the inner tyre layer, so that the structure is simple; the forming can be realized by a layer-by-layer attaching mode, the production difficulty is small, and the cost is low; through the arrangement of the buffer posts and the change of the diameter size, the use comfort is good.

Claims

1. The utility model provides a non-pneumatic tire of multilayer buffering formula, its includes inner tube layer and cover tyre layer, outer tyre layer and inner tube layer coaxial setting, its characterized in that: inner tube layer and cover tire layer between coaxial two at least supporting layer that is provided with, be provided with the support chamber respectively between inner tube layer and the adjacent supporting layer, between two adjacent supporting layer, between cover tire layer and the adjacent supporting layer the support intracavity radially be equipped with a plurality of bumping posts along the inner tube layer.

2. The multi-layer buffer non-pneumatic tire as claimed in claim 1, wherein the buffer posts disposed in the same support chamber are uniformly distributed along the circumferential direction of the support chamber and are periodically arranged in an "S" shape or a rhombic shape on the circumferential surface of the support chamber.

3. The multi-layer cushioned non-pneumatic tire as set forth in claim 1, wherein said cushion columns are cylindrical and have a bottom surface in contact with a corresponding inner tube layer or support layer or outer tube layer, respectively.

4. A multi-layer cushioned non-pneumatic tire as set forth in claim 3 wherein said cushion post has a diameter that decreases from each side of the wheel to the plane of the wheel.

5. The multi-layer cushioned non-pneumatic tire as set forth in claim 1, wherein said cushion columns are a natural rubber material or a butyl rubber material.

6. The multi-layer cushioned non-pneumatic tire as set forth in claim 1, wherein there are 2-7 support layers.

7. The multi-layer cushioned non-pneumatic tire as set forth in claim 1, wherein said support layer is a metallic material or a polyurethane material.