CN212765506U

CN212765506U - High-molecular half-ester half-ether composite inflation-free tire

Info

Publication number: CN212765506U
Application number: CN202020605860.9U
Authority: CN
Inventors: 余朝伟
Original assignee: Guangzhou Keji Chemical Materials Co ltd
Current assignee: Guangzhou Keji Chemical Materials Co ltd
Priority date: 2019-06-30
Filing date: 2020-04-21
Publication date: 2021-03-23
Anticipated expiration: 2030-04-21

Abstract

The utility model discloses a macromolecule half-ester half-ether composite inflation-free tire, which comprises a tire body, wherein the tire body is made of polyether materials, the outer surface of the tire body is provided with a tire crown layer, the tire crown layer is made of polyester materials, a plurality of first through holes and second through holes are arranged on two sides of the tire body, and the first through holes and the second through holes are arranged at intervals in sequence; this compound pneumatic tire of exempting from of polymer half ester half ether adopts two kinds of different performance materials of polyester, polyether to make, has effectively solved current pneumatic tire of exempting from and has torn the performance poor, and the tread is not wear-resisting, inhales the poor scheduling problem of shake effect to and set up the through-hole on this pneumatic tire surface of exempting from, make its child heavy when further improve buffering and absorbing effect.

Description

High-molecular half-ester half-ether composite inflation-free tire

Technical Field

The utility model belongs to the technical field of the tire product and specifically relates to a compound pneumatic tire of exempting from of polymer half ester half ether is related to.

Background

The existing Polyurethane (PU) foaming inflation-free tire has the advantages of complete puncture resistance, inflation-free property, high strength, light weight, durability, moderate elasticity, maintenance-free property and the like. The PU foaming non-pneumatic tyre is a non-pneumatic tyre, and adopts the micro-closed hole foaming technology to make the high-molecular polymer material form non-communicated and compact micro air chambers, and the interior of the micro air chamber is filled with high-elasticity sponge-like tyre. The foamed sponge body of the high polymer material can restore the original shape after being extruded and stretched by utilizing a three-dimensional reticular structure and permanent recoverability, so that the tire can keep the shape unchanged, and can fully bear the pressure change of the tire by utilizing countless micro closed holes which are mutually connected and mutually independent, so that the tire can keep enough stiffness at any time. Therefore, the PU foaming inflation-free tire is gradually the main force of the tire market due to the unique advantages, and the market prospect is very considerable.

However, although the conventional PU foam non-pneumatic tire has many advantages, the following disadvantages are present:

1. the prior non-pneumatic tire is generally a polyether material or a polyester material product in single polyurethane, has a monomer structure, and has the advantages and disadvantages of polyether or polyester.

2. The non-pneumatic tire has poor shock absorption performance due to heavy tire body and poor use effect.

SUMMERY OF THE UTILITY MODEL

In view of this, the utility model aims at providing a compound pneumatic tire of exempting from of polymer half ester half ether, it adopts two kinds of different performance materials of polyester, polyether to make, has effectively solved current pneumatic tire of exempting from and has torn the performance poor, and the tread is not wear-resisting, inhales the poor scheduling problem of shake effect to and seted up the through-hole on this pneumatic tire of exempting from surface, make its child weight further improve buffering and absorbing effect when low.

In order to solve the technical problem, the technical scheme of the utility model is that: the utility model provides a compound pneumatic tire of exempting from of polymer half ester half ether, includes the matrix, the matrix is the setting of polyether material, the matrix surface is equipped with the tire crown layer, the tire crown layer is the setting of polyester material, a plurality of first through-holes and second through-hole have been seted up to the matrix both sides, first through-hole and second through-hole interval set up in proper order.

Preferably, supporting blocks are arranged between the first through holes and between the second through holes corresponding to the two sides of the tire body.

Preferably, the inner surface of the tire body is provided with a buffer layer, a cavity is formed inside the buffer layer, a plurality of buffer sleeves are arranged in the buffer layer, and springs are arranged in the buffer sleeves in a combined mode.

Preferably, the buffer layer is filled with resin, and the resin is made of polyethylene material.

Preferably, the polyether material is a high-molecular polyether microcellular foaming elastomer.

Preferably, the polyester material is a high molecular polyester foamed elastomer or a high molecular polyester non-foamed elastomer.

Preferably, the crown layer surface has a raised texture.

Preferably, the cross-sectional area of the crown layer is about one-fourth to one-third of the cross-sectional area of the carcass.

The utility model discloses technical effect mainly embodies in following aspect:

1. the tire body is made of polyether materials, deformation amount is small, rebound is fast, and shock absorption is remarkable.

2. The tire crown layer is made of polyester materials, the polyester materials are wear-resistant, good in tensile strength and excellent in tear strength, rolling resistance is small, and riding is easy and labor-saving.

3. Through having seted up a plurality of first through-holes and second through-hole in matrix both sides, not only have fine shock attenuation buffering effect, still reduce the weight of matrix simultaneously for the matrix is lighter than current pneumatic tire's weight, effectively reduces material cost.

Drawings

FIG. 1 is a front view of a high molecular semi-ester semi-ether composite non-pneumatic tire of the present invention;

FIG. 2 is a schematic view of the internal structure of a high molecular semi-ester semi-ether composite non-pneumatic tire of the present invention;

FIG. 3 is an enlarged view of a high molecular semi-ester semi-ether composite non-pneumatic tire A of the present invention;

FIG. 4 is a schematic structural view of the high molecular half-ester half-ether composite non-pneumatic tire of the present invention cut along a first through hole;

fig. 5 is a schematic side view of the high molecular half-ester half-ether composite inflation-free tire carcass of the present invention.

Detailed Description

The following detailed description will be made with reference to fig. 1 to 5 to make the technical solution of the present invention easier to understand and master.

In the present embodiment, it should be understood that the terms "middle", "upper", "lower", "top", "right", "left", "above", "back", "middle", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of describing the present invention, and do not indicate or imply that the referred devices or elements must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention.

In the present embodiment, if the connection or fixing manner between the components is not specifically described, the connection or fixing manner may be a bolt fixing manner, a pin connecting manner, or the like, which is commonly used in the prior art, and therefore, details thereof are not described in the present embodiment.

As shown in fig. 1 to 5, a high molecular half-ester half-ether composite non-pneumatic tire comprises a tire body 1, wherein the tire body 1 is made of a polyether material, the polyether material is a high molecular polyether microcellular foamed elastomer, the high molecular polyether microcellular foamed elastomer comprises a polyether a component and a polyether B component, and the polyether a component comprises the following components: polyether glycol A (polycaprolactone diol), a chain extender (1, 3-butanediol), a cross-linking agent, a catalyst, a foaming agent and a foam stabilizer; the polyether B component consists of the following components: tris (2-hydroxyethyl) isocyanate B, polyether polyol B, side reaction inhibitor, tris (2-hydroxyethyl) isocyanate B is selected from toluene diamine, triethylene diamine, diphenylmethane diisocyanate, carbodiimide modified diphenylmethane diisocyanate, toluene diisocyanate, dicyclohexylmethane diisocyanate (HMDI), polyether polyol B is polycaprolactone diol, the matrix surface is equipped with a tread cap layer 2, tread cap layer 2 sets up for the polyester material, the polyester material is polymer polyester type foamed elastomer or polymer polyester type non-foamed elastomer, polymer polyester type foamed elastomer or polymer polyester type non-foamed elastomer contains polyester A component, polyester B component, polyester A component comprises the following components: polyester polyol A (polycaprolactone diol), dihydric alcohol or polyhydric alcohol, terephthalic acid (PTA), a chain extender (1, 3-butanediol), a cross-linking agent, a catalyst, a foaming agent and a foam stabilizer; if the tire crown layer adopts the unfoamed elastomer, the foaming agent and the foam stabilizer are not added; the polyester B component consists of the following components: isocyanate B and polyester polyol B; the polyurethane tire tread comprises polybasic acid and a side reaction inhibitor, wherein isocyanate B is selected from diphenylmethane diisocyanate, carbodiimide modified diphenylmethane diisocyanate, toluene diisocyanate and dicyclohexylmethane diisocyanate (HMDI), the polyester polyol B is polycaprolactone diol, and if a non-foaming elastomer is adopted for a tire tread layer, a foaming agent and a foam stabilizer are not added. A plurality of first through-holes 3 and second through-holes 4 have been seted up to matrix 1 both sides, first through-hole 3 and second through-hole 4 set up at interval in proper order, through be equipped with a plurality of first through-holes 3 and second through-hole 4 in matrix 1 both sides, and set up according to certain law for have fabulous buffering and shock attenuation effect in going, simultaneously because matrix 1 is equipped with first through-hole 3 and second through-hole 4, make its weight obtain the reduction, the material cost that significantly reduces.

Supporting blocks 5 are arranged between the first through holes 3 and the second through holes 4 corresponding to the two sides of the tire body 1, and the supporting blocks play a role in strengthening and supporting the tire body to be subjected to external extrusion in the running process.

The internal surface of matrix 1 is equipped with buffer layer 6, the inside cavity that is of buffer layer 6, be equipped with a plurality of cushion collar 61 in the buffer layer 6, the group is equipped with spring 611 in the cushion collar 61, the intussuseption of buffer layer 6 is filled with resin 7, resin is the polyethylene material setting, through being equipped with cushion collar and spring and filling resin in the buffer layer, further improves the buffering and the shock attenuation effect of matrix.

The surface of the crown layer 2 is provided with a raised texture structure.

The cross-sectional area of the tire crown layer 2 is about one fourth to one third of that of the tire body 1, so that the tire crown layer has the advantages of improving the wear resistance, reducing the rolling resistance and the like.

The production process of the utility model is as follows:

s1, setting a die with a buffer layer, feeding a pre-made macromolecule polyester type foaming elastomer raw material (or non-foaming material) A component (containing cross-linking agent, catalyst, coloring agent and the like) and B component raw material into a corresponding A solution vessel and a corresponding B solution vessel respectively according to a certain proportion, setting A, B component proportion by the machine, simultaneously feeding the materials to a discharge port by an A feeding pump and a B feeding pump, installing a high-speed stirrer at a pouring outlet, rapidly mixing the A material and the B material flowing through the outlet simultaneously, rapidly stirring the mixture uniformly, rapidly pouring the mixture to the vicinity of a steel die feeding port rotating at a high speed, throwing the raw materials into an inner cavity of the die by the centrifugal force of the die, rapidly carrying out cross-linking reaction on the mixed material A, B within a set time to generate a foaming elastomer (or a non-foaming elastomer) and form a polyester elastomer of a tire crown layer, the cross-sectional area occupies about 1/3 of the overall cross-sectional area of the mold cavity, and the color of the crown layer can be adjusted to any color before production;

s2, preparing raw materials according to a certain proportion, after the tire crown layer elastomer is crosslinked and cured for 1 to 3 minutes, pouring a second raw material of the high molecular polyether type microporous foaming body into the inner cavity of the rest gap of the same mold through a second group of foaming machines, respectively adding a component A (adding a crosslinking agent, a catalyst, a foaming agent, a foam homogenizing agent, a pigment, a reflective or fluorescent material and the like) and a component B of the prefabricated high molecular polyether type microporous foaming body raw materials into a corresponding solution A container and a corresponding solution B container by utilizing the two groups of foaming machines, simultaneously feeding the materials to a discharge port by an A feeding pump and a B feeding pump through scientific proportion of the components A and the B, installing a high-speed stirrer at a pouring outlet of production equipment, rapidly and uniformly mixing the material A and the material B flowing through the outlet, injecting the mixture into an inner cavity with the rest volume of a tire steel mold, and carrying out crosslinking reaction on the mixture of the component A and the component B of the, and (3) generating a foaming body of the three-dimensional sealed microporous air chamber, filling the foaming body in the inner cavity of the rest gap of the mold, curing and molding (about 50 seconds), bonding the tire body and the tire crown layer into a whole, opening the mold, taking out the tire, and manufacturing the finished product.

Of course, the above is only a typical example of the present invention, and besides, the present invention can also have other various specific embodiments, and all technical solutions adopting equivalent replacement or equivalent transformation are all within the scope of the present invention as claimed.

Claims

1. The utility model provides a compound pneumatic tire of exempting from of polymer half ester half ether which characterized in that: the tire is characterized by comprising a tire body, wherein the tire body is made of polyether materials, a tire crown layer is arranged on the outer surface of the tire body and made of polyester materials, a plurality of first through holes and second through holes are formed in the two sides of the tire body, and the first through holes and the second through holes are arranged at intervals in sequence.

2. The high molecular half-ester half-ether composite non-pneumatic tire as claimed in claim 1, wherein: supporting blocks are arranged between the first through holes and between the second through holes corresponding to the two sides of the tire body.

3. The high molecular half-ester half-ether composite non-pneumatic tire as claimed in claim 1, wherein: the internal surface of matrix is equipped with the buffer layer, the inside cavity that is of buffer layer, be equipped with a plurality of cushion collar in the buffer layer, the group is equipped with the spring in the cushion collar.

4. The high molecular weight half ester and half ether composite non-pneumatic tire as claimed in claim 3, wherein: the buffer layer is filled with resin, and the resin is made of polyethylene materials.

5. The high molecular half-ester half-ether composite non-pneumatic tire as claimed in claim 1, wherein: the polyether material is a high-molecular polyether microcellular foaming elastomer.

6. The high molecular half-ester half-ether composite non-pneumatic tire as claimed in claim 1, wherein: the polyester material is a high molecular polyester type foaming elastomer or a high molecular polyester type non-foaming elastomer.

7. The high molecular half-ester half-ether composite non-pneumatic tire as claimed in claim 1, wherein: the surface of the crown layer is provided with a raised texture structure.

8. The high molecular weight half ester and half ether composite non-pneumatic tire as claimed in claim 7, wherein: the cross-sectional area of the crown layer is about one fourth to one third of the cross-sectional area of the carcass.