CN212737639U

CN212737639U - Integrated vulcanized non-pneumatic rubber tire without steel wires and cord fabric

Info

Publication number: CN212737639U
Application number: CN202021604829.XU
Authority: CN
Inventors: 袁征
Original assignee: Jiangsu Zhonghong Tanda Rubber Technology Co Ltd
Current assignee: Jiangsu Xinben Rubber Technology Co ltd
Priority date: 2020-08-05
Filing date: 2020-08-05
Publication date: 2021-03-19
Anticipated expiration: 2030-08-05

Abstract

The utility model relates to an integrally vulcanized inflation-free rubber tire without steel wires and cord fabric, which comprises a tire, wherein the tire is sleeved on a wheel hub, and the rubber tire is sequentially provided with a tire body outer layer, a cross-linking layer and a tire core foaming layer along the radial outside-in direction; the outer layer of the tire body comprises a tire crown which is contacted with the ground when in use, tire casings which extend from the inner sides of beams on the two sides of the tire crown and tire roots which are sleeved on a rim of the wheel hub, and the tire casings, the tire crown and the tire roots are connected with one another to form a closed structure. The utility model overcomes the defects of the prior art, has reasonable design and compact structure, solves the problems of easy tire burst, poor antiskid effect and insufficient stiffness of the prior pneumatic tire, in particular to the tire of an electric vehicle and a motorcycle, and adopts the tire core foaming layer to replace the traditional pneumatic tire, thereby preventing the tire burst and prolonging the service life of the tire; meanwhile, the stiffness of the tire can be improved, and the practicability is high.

Description

Integrated vulcanized non-pneumatic rubber tire without steel wires and cord fabric

Technical Field

The utility model relates to an exempt from to aerify rubber tire equipment technical field, concretely relates to integrative vulcanization of no steel wire and cord fabric exempts from to aerify rubber tire.

Background

The tire is a circular ring-shaped elastic rubber product which is assembled on various vehicles or machines and rolls in a grounding mode, and with the rapid development of the automobile industry, the mining industry, the coal mining industry and the metal smelting industry in China, the demand of the tire is larger and larger, and the requirement on the quality of the tire is higher and higher.

Most of the current tires adopt inflatable tires, the tires have good damping effect when in use and relatively low walking resistance, but have great limitations, such as easy puncture by sharp objects to cause serious accidents, and the inflatable tires have poor bearing capacity, are not suitable for military use and have relatively low application range. The traditional tire is formed by laminating steel wires, cord fabric and each layer of colloid, the recycling rate is low, and the waste pneumatic tire cannot be recycled and is not environment-friendly.

And the non-pneumatic tires are mostly injected with foaming materials into the tire surface in an injection mode, the foaming materials are generally polyurethane, and the polyurethane foaming materials are used for replacing the traditional inner tube so as to achieve the non-pneumatic solid tires.

The inflation-free solid tire has the following problems in the actual use process:

1. the foaming multiplying power of the polyurethane foaming agent is difficult to control, if the foaming multiplying power is too large, the tire tread is easy to expand and crack, if the foaming multiplying power is too small, the air pressure of the tire is similar to that of an inflatable tire, the stress is uneven, the dynamic balance is influenced, the acting force on the tire tread is not even enough during foaming, the tire tread is not full enough, the stress is uneven when the tire is used, and the dynamic balance is influenced.

2. The foaming layer and the tire tread are not contacted tightly enough during foaming, the contact effect is poor, the peeling and the separation are easy to occur, and the requirement of the tire with the speed of 20 yards or above is not met.

3. The polyurethane material is expensive, which results in the solid tire being expensive and inconvenient to implement.

To this end, we propose an integrally vulcanized non-pneumatic rubber tire without steel cords and cord fabric.

Disclosure of Invention

Aiming at the defects of the prior art, the utility model provides an integrally vulcanized inflation-free rubber tire without steel wires and cord fabric, which overcomes the defects of the prior art, has reasonable design and compact structure, solves the problems of easy tire burst, poor anti-skid effect and insufficient stiffness of the prior pneumatic tire, in particular to the tire of an electric vehicle and a motorcycle, and adopts a tire core foaming layer to replace the traditional pneumatic tire, thereby preventing the tire burst and prolonging the service life of the tire; meanwhile, the stiffness of the tire can be improved, and the practicability is high.

In order to achieve the above purpose, the utility model discloses a following technical scheme realizes:

an integrally vulcanized inflation-free rubber tire without steel wires and cord fabrics, which comprises a tire and is characterized in that,

the rubber tire is sequentially provided with a tire body outer layer, a cross-linking layer and a tire core foaming layer from outside to inside along the radial direction;

the tyre outer layer, the cross-linking layer and the tyre core foaming layer are formed in sequence by adopting two different rubber materials through compounding and vulcanizing processes, wherein the tyre outer layer and the tyre core foaming layer are in close cross-linking fusion connection through the cross-linking layer, and finally the integrated vulcanization inflation-free rubber tyre structure of the tyre outer layer, the cross-linking layer and the tyre core foaming layer is formed.

Furthermore, a plurality of mutually independent and closed fine closed holes are formed in the tire core foaming layer.

Furthermore, a central hole is formed after the tire core foaming layer is foamed.

Further, the diameter of the central hole is not less than 2 mm.

Has the advantages that:

the embodiment of the utility model provides a production manufacturing technology of integrative vulcanization of no steel wire and cord fabric exempts from to aerify rubber tire. The method has the following beneficial effects:

1. the bearing capacity can be improved, the tire tread is full and elastic, the stress is more uniform, and the dynamic balance effect is improved.

2. All be provided with the casing king post between two casing subpillars, the casing king post can provide the fore-and-aft holding power of tire, improves the bearing effect of tire then, improves the stiffness of tire, improves the elasticity of tire then.

3. The foaming strip can be more closely contacted with the tread material, and the separation and the peeling are prevented. Under the vulcanization effect of the vulcanizing agent at the same sulfur point, the outer surface of the foaming strip and the inner wall of the tire tread material are vulcanized and then cross-linked and fused, so that the contact effect is improved, and the separation is prevented.

4. The foaming material with the main component of the regenerated rubber is adopted, so that the overall price of the tire is reduced, the resource recycling is realized, the environment is protected, and the economic cost can be reduced.

5. Because the foaming material is adopted to replace the traditional inflatable inner tube, the risk of tire burst is avoided.

6. The flame retardant is added into the foaming material and the tire fabric, so that the flame retardant effect is improved, the safety performance is improved, the tire fabric is conveniently applied to the field of military industry, and meanwhile, the rubber plastic and the fiber material are added into the tire fabric, so that the mechanical strength and the tearing strength are improved, the bearing capacity is improved, the tire fabric is suitable for large-scale mechanical equipment, and the application range is enlarged.

7. Foaming and crosslinking are carried out in the same time of vulcanization, so that the production efficiency of the tire is improved.

8. Because the tire core foaming layer is internally provided with a plurality of mutually independent and closed holes, the tire can realize the anti-pricking and anti-explosion effects when meeting poor road surface environment.

9. The foaming inflation-free tire has no cord fabric or steel wire (the existing tire and the inflation-free tire have the structure), so the manufacturing process is obviously simplified, more personnel stations and energy consumption of operation are saved, and the foaming inflation-free tire can be recycled at 100 percent high efficiency after being crushed and desulfurized because the foaming inflation-free tire is a composite and crosslinked finished product of two rubber materials, and is more environment-friendly compared with the existing tire containing the steel wire and the cord fabric.

Drawings

Fig. 1 is a schematic view of the cross-section structure of the tire after molding.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.

An integrally vulcanized inflation-free rubber tire without steel wires and cord fabric comprises a tire 50, wherein the tire is sleeved on a hub 40, and as shown in figure 1, the rubber tire is sequentially provided with a tire body outer layer 58, a cross-linking layer 54 and a tire core foaming layer 56 from outside to inside along the radial direction;

the tire body outer layer 58, the cross-linking layer 54 and the tire core foaming layer 56 are formed by two different rubber materials in sequence through compounding and vulcanization processes, wherein the tire body outer layer 58 and the tire core foaming layer 56 are in close cross-linking fusion connection through the cross-linking layer 54, and finally the integrated inflation-free rubber tire structure of the tire body outer layer 58, the cross-linking layer 54 and the tire core foaming layer 56 is formed.

The tire core foaming layer 56 is internally provided with a plurality of mutually independent and closed tiny closed holes 55, and the tire core foaming layer is internally provided with a plurality of mutually independent and closed holes, so that the tire can realize the anti-prick and anti-explosion effects when meeting the poor road surface environment. The closed holes are in a circular, oval or irregular hole structure, the size of the holes is controlled within 3mm, so that the tire has good stiffness, the diameter of a central hole 57 after the foaming of the tire core foaming layer is controlled to be more than 2mm, or the diameter of the central hole can be reduced to 0mm according to the foaming condition.

The composite foaming inflation-free rubber tire is formed through a series of steps of manufacturing of foaming materials, manufacturing of tire fabric, manufacturing of foaming strips, manufacturing of composite rubber materials, cutting in a fixed length mode, hot connection and tire vulcanization forming.

The tyre crown position of the outer layer of the tyre body is provided with an anti-skid groove, so that the anti-skid effect of the tyre 50 is improved.

It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other identical elements in a process, method, article, or apparatus that comprises the element.

The above embodiments are only used to illustrate the technical solution of the present invention, and not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it should be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; such modifications and substitutions do not depart from the spirit and scope of the present invention in its corresponding aspects.

Claims

1. An integrally vulcanized inflation-free rubber tire without steel wires and cord fabrics, which comprises a tire and is characterized in that,

the rubber tire is sequentially provided with a tire body outer layer (58), a cross-linking layer (54) and a tire core foaming layer (56) from outside to inside along the radial direction;

the tyre body outer layer (58), the cross-linking layer (54) and the tyre core foaming layer (56) are formed by two different rubber materials in sequence through compounding and vulcanization processes, wherein the tyre body outer layer (58) and the tyre core foaming layer (56) are in close cross-linking fusion connection through the cross-linking layer (54), and finally an integrally vulcanized inflation-free rubber tyre structure of the tyre body outer layer (58), the cross-linking layer (54) and the tyre core foaming layer (56) is formed.

2. A integrally vulcanized non-pneumatic rubber tire without steel wires and cord fabric as claimed in claim 1, wherein the core foam layer (56) has a plurality of fine closed cells (55) therein which are independent of each other and closed.

3. A unitarily vulcanized non-pneumatic rubber tire without cords and cords as in claim 1, wherein the core foam layer is foamed to form a central hole (57).

4. A unitarily vulcanized non-pneumatic rubber tire without cords and cords as in claim 3, wherein said central hole (57) has a diameter of not less than 2 mm.