CN214189179U - Non-pneumatic tire with inner cavity, tire side and tire crown filled and molded - Google Patents

Abstract

The utility model discloses a fashioned pneumatic tire of exempting from is filled to inner chamber, side wall, child hat belongs to the pneumatic tire technical field of exempting from. The utility model discloses a fashioned inflation-free tire is filled to inner chamber, side wall, child hat, including the tire base member, the tire base member includes child hat, child abdomen and side wall portion, and the tire embryo strip core of extruding through screw extruder is along its inner chamber of running through the head and the tail of offering all around, fills filler C with its inside injection. A tire crown groove is formed in the tire crown along the circumferential direction of the tire crown, a filler A is filled in the tire crown groove, and the filler A is made of a high-wear-resistance and anti-slippery rubber material; a sidewall groove is formed in the sidewall along the circumferential direction of the sidewall, and a filler B is filled in the sidewall groove; the filler B and the filler C are made of foaming and other related light buffer materials, so that the weight of the tire body is reduced as much as possible, the cost is saved, and the riding comfort can be guaranteed.

Description

Non-pneumatic tire with inner cavity, tire side and tire crown filled and molded

Technical Field

The utility model relates to an exempt from pneumatic tire technical field, the fashioned pneumatic tire of exempting from is filled to the more specifically inner chamber, side wall, child hat that says so.

Background

The non-pneumatic tire adopts a structural damping design, is generally a transverse honeycomb perforated or longitudinal multi-hollow structure, and is manufactured by a one-step molding process of the whole tire which is made of one material. Unlike conventional car tires, which are multi-layer designs, each layer of material has a different weight. The general non-pneumatic tire takes into consideration that indexes of various aspects of the tire, such as pressure resistance, wear resistance, heat resistance, skid resistance, heat resistance and the like, meet requirements, the tire is made to be relatively hard, so that the comfort of the tire is greatly sacrificed, especially compared with the pneumatic tire, the difference is large, so that the use experience of a user is poor, the non-pneumatic tire cannot be selected, and the main reason why the non-pneumatic tire cannot be popularized and applied in a large scale is also provided. If want to improve the problem of comfort level, generally can be to avoiding pneumatic tire to do than softer, can cause the heavy burden to reduce like this, wear-resisting relatively poor, easy fracture, life reduces, and pneumatic tire's weight is heavier generally simultaneously, can increase the weight of whole car to the energy consumption of vehicle has been increased, the continuation of the journey mileage of reduction vehicle.

Through search, for example, the Chinese patent application numbers are: 201510362476.4, application date is: 26 days 6 months 2015, a non-inflatable safety tire is disclosed, which is sequentially provided with a tread, an outer ring, a support body and an inner ring from inside to outside, wherein the tread is bonded or vulcanized on the outer ring, the support body is arranged between the outer ring and the inner ring along the radial direction and the circumferential direction, a plurality of groups of damping units and supporting ribs are distributed on the support body along the circumferential direction, each group of damping units comprises two groups of damping structures, and the two groups of damping structures are axially arranged by taking the radial direction as a symmetry axis. However, the through holes or the supporting structures which can uniformly disperse the grounding pressure are not arranged in the circumferential ring body between the damping unit and the outer ring in the supporting body, the grounding pressure is small when the tire grounding part is positioned at the position of the damping hole, and the grounding pressure is large when the tire grounding part is positioned at the hole wall of the damping hole, so that the grounding pressure is not favorably and uniformly transmitted to the supporting body, and the conditions of uneven grounding impression and lower operation comfort are easy to occur.

SUMMERY OF THE UTILITY MODEL

1. Technical problem to be solved by the utility model

The defect that exempt from pneumatic tire to exist among the prior art, the utility model provides an inner chamber, side wall, child hat are filled fashioned exempt from pneumatic tire, tire embryo strip core through screw extruder extrusion is along its inner chamber of running through the head and the tail of offering all around, fill filler C back with its inside injection, tailor tire embryo strip according to required size, then form the annular tire base member of closed circle with tire embryo strip end to alleviate matrix weight as far as, practice thrift the cost, can also protect the travelling comfort of riding.

2. Technical scheme

In order to achieve the above purpose, the utility model provides a technical scheme does:

the inflation-free tire formed by filling an inner cavity, a side wall and a tire crown comprises a tire base body, wherein the tire base body comprises a tire crown, a tire belly and a tire side part; the inner chamber that runs through the head and the tail is seted up along its week to the core of tire base member, it has filler C to fill in the inner chamber, filler C material is relevant light buffer material such as foaming to alleviate matrix weight as far as possible, practice thrift the cost, and guarantee that the tire base member possesses better elasticity, with the travelling comfort of guaranteeing to ride.

According to the technical scheme, a tire crown groove is formed in the tire crown along the circumferential direction of the tire crown, a filler A is filled in the tire crown groove and is made of a high-wear-resistance and anti-slippery rubber material, so that the problems that the tire jumps due to uneven tire joints in the mold pressing process, and even the potential safety hazard is caused due to fracture are solved, and the problems of elimination or early warning and the like can be solved.

Further technical scheme, the sidewall recess has been seted up along its circumference on the sidewall portion, sidewall portion recess intussuseption is filled with filler B, sidewall portion recess is located between sidewall portion and the child belly, filler B material is relevant light buffer material such as foaming, will not use light buffer material with the sidewall portion of ground contact to compound with the child hat that uses high wear-resisting, anti wet and slippery tread rubber material, thereby alleviate matrix weight as far as possible, practice thrift the cost, can also guarantee the sufficient support strength of matrix, improve the life of tire.

Further technical scheme, side wall portion recess is located between child hat and the side wall portion, filler B material is wear-resisting, anti wet and slippery rubber material, and the side wall portion recess filling material that will be close to child hat department is wear-resisting, anti wet and slippery rubber material to reduce the wearing and tearing that produce when tire lateral part and brake block rub as far as, with holistic life of increase tire, saving cost.

A processing method of a non-pneumatic tire formed by filling inner cavities, side walls and a tire crown comprises the following steps:

step one, forming a tire matrix: the core part of the tire blank strip extruded by the screw extruder is provided with an inner cavity penetrating through the head and the tail along the circumferential direction, the inner part of the tire blank strip is injected and filled with a filler C, the tire blank strip is cut according to the required size, and then the tire blank strip is connected end to form a closed circular tire base body;

step two, die assembly: opening an upper die and a lower die of the forming die, putting the tire matrix into die cavities in the upper die and the lower die, and then closing the dies;

step three, filling and injecting: injecting a filler A into the crown groove through an injection pipe I, and injecting a filler B into the side groove through an injection pipe II;

step four, vulcanization molding: the tire matrix filled with the filler A, the filler B and the filler C in the forming mold is subjected to cross-linking vulcanization to promote the filler A and the tire crown groove as well as the filler B and the tire side groove to be cross-linked and combined to form a unified whole, so that the fillers are tightly attached to the tire matrix; the hidden danger of joints of the tire base bodies which are connected end to form a closed circular ring is solved, namely the joints are over-tight, the joints are in a convex state, the shape of the internal structure is suddenly changed, the bumping is easy to occur, and the riding comfort is poor; the joint is loose, a sunken state appears at the joint, bumping and even breaking easily occur, riding comfort is poor, and potential safety hazards are large;

step five, demolding: removing the upper die and the lower die, opening the die cavity, taking out the molded tire, wherein the filler B filled in the groove of the side portion and the filler C in the inner cavity play a supporting role to bear the load of the tire, buffer the tire and the like; the filler A injected into the tire crown groove serves as a tire tread to achieve the effects of wear resistance, skid resistance and the like of the tire, so that different composite layers are used at all positions of the tire according to the stress and consumption degree of the tire in the using process, and the cost is saved.

3. Advantageous effects

Adopt the technical scheme provided by the utility model, compare with prior art, have following beneficial effect:

(1) the utility model discloses a fashioned inflation-free tire is filled to inner chamber, side wall, child crown, the tire embryo strip core portion of extruding through screw extruder is along its inner chamber of running through end to end of week, after filling filler C with its inside injection, tailor tire embryo strip according to required size, then form the tire base member of closed ring form with tire embryo strip end to end, filler C material is relevant light buffer material such as foaming to lighten matrix weight, practice thrift the cost as far as possible, and guarantee that the tire base member possesses better elasticity, in order to guarantee the travelling comfort of riding;

(2) the utility model discloses a non-pneumatic tire of inner chamber, side wall, child hat filling shaping, child hat department has seted up the child hat recess along its circumference, the inside packing of child hat recess has filler A, filler A material is high wear-resisting, wet and slippery resistant rubber material to solve in the molding process tire that tire joint department is rugged and causes beat, even fracture and cause the potential safety hazard and can carry out its elimination or early warning scheduling problem in advance;

(3) the utility model discloses a non-pneumatic tire of shaping is filled to inner chamber, side wall, child crown, set up side wall portion recess along its circumference on the side wall portion, the side wall portion recess intussuseption is filled with the filler, side wall portion recess is located between side wall portion and child abdomen, the filler is filler B, filler B material is relevant light buffer material such as foaming, uses light buffer material with the side wall portion that does not contact with ground to compound with the child crown that uses high wear-resisting, wet-skid resistant tread rubber material, thereby lighten matrix weight, saving cost as far as possible, can also guarantee the sufficient support intensity of matrix, improve the life of tire;

(4) the utility model discloses a cavity, side wall, the fashioned inflation-free tire of child crown packing, side wall portion recess is located between child crown and the side wall portion, the filler in the side wall portion recess is filler A, filler A material is high wear-resisting, anti wet and slippery rubber material, will be close to the side wall portion recess packing material of child crown department for wear-resisting, anti wet and slippery rubber material to reduce the wearing and tearing that produce when tire lateral part and brake block rub as far as possible, with the holistic life of increase tire, saving cost;

drawings

FIG. 1 is a schematic structural view of a non-pneumatic tire forming mold of the present invention;

FIG. 2 is a schematic perspective view of the base body of the non-pneumatic tire of the present invention;

FIG. 3 is a cross-sectional view of the tire base of FIG. 2;

FIG. 4 is a schematic view of a longitudinal cut-away structure of the tire base of FIG. 2;

FIG. 5 is a schematic representation of the tire matrix of FIG. 4 after injection filling;

FIG. 6 is a schematic diagram of the tire matrix of FIG. 3 after injection filling.

In the figure: 1-tire base body, 2-molding die, 3-injection tube I, 4-injection tube II, 11-tire crown, 12-tire belly, 13-tire side part, 14-inner cavity, 21-upper die, 22-lower die, 23-mold cavity, 111-tire crown groove, 112-filler A, 131-tire side part groove, 132-filler B and 141-filler C.

Detailed Description

For a further understanding of the present invention, reference will be made to the following detailed description taken in conjunction with the accompanying drawings.

Example 1

The non-pneumatic tire formed by filling an inner cavity, a sidewall and a crown in the embodiment comprises a tire base body 1, as shown in fig. 2 to 4, wherein the tire base body 1 comprises a crown 11, a tire belly 12 and a sidewall 13; the inner chamber 14 that runs through the head and the tail is seted up along its week to the core of tire base member 1, as shown in fig. 5 ~ 6, it has filler C141 to fill in the inner chamber 14, filler C141 material is relevant light buffer material such as foaming to alleviate matrix weight as far as possible, practice thrift the cost, and guarantee that tire base member 1 possesses better elasticity, with the travelling comfort of guaranteeing to ride.

Example 2

The basic structure of the non-pneumatic tire formed by filling the inner cavity, the side wall and the crown in the embodiment is the same as that of the embodiment 1, and the differences and improvements are that: as shown in fig. 4 to 6, a tire crown groove 111 is formed in the tire crown 11 along the circumferential direction, a filler a112 is filled in the tire crown groove 111, and the filler a112 is made of a high-wear-resistance and anti-slippery rubber material, so that problems of tire jumping, even fracture, potential safety hazards caused by uneven tire joints in a molding process, elimination of the potential safety hazards, early warning and the like can be solved; the tire is characterized in that a tire side groove 131 is formed in the tire side portion 13 along the circumferential direction of the tire side portion, fillers are filled in the tire side portion groove 131, the tire side portion groove 131 is located between the tire side portion 13 and the tire belly 12, the fillers in the tire side portion groove 131 are fillers B132, the fillers B132 are made of foaming and other related light buffer materials, the tire side portion which is not in contact with the ground is made of the light buffer materials, and the light buffer materials are compounded with a tire crown which is made of high-wear-resistant and anti-wet-skid tread rubber materials, so that the weight of the tire body is reduced as much as possible, the cost is saved, the sufficient supporting strength of the tire body can be guaranteed, and the service life of the tire is prolonged.

Example 3

The basic structure of the non-pneumatic tire formed by filling the inner cavity, the side wall and the crown in the embodiment is the same as that in the embodiment 2, and the differences and improvements are as follows: the side wall portion recess 131 is located between child hat 11 and the side wall portion 13, the filler in the side wall portion recess 131 is filler A112, filler A112 material is high wear-resisting, anti wet and slippery rubber material, and the side wall portion recess 131 that will be close to child hat 11 department fills the material and is wear-resisting, anti wet and slippery rubber material to the wearing and tearing that produce when reducing tire side portion 13 and brake block friction as far as, with the holistic life of increase tire, saving cost.

Example 4

The basic structure of the processing method of the non-pneumatic tire filled and formed by the inner cavity, the side wall and the crown is the same as that of the embodiment 3, and the differences and improvements are that: as shown in fig. 1, 5-6, the method comprises the following steps:

step one, forming a tire matrix 1: an inner cavity 14 penetrating through the head and the tail of the tire blank strip core part extruded by the screw extruder is formed along the circumferential direction of the tire blank strip core part, the interior of the tire blank strip core part is filled with a filler C141 by injection, the filler C141 is made of foaming and other related light buffer materials, the tire blank strip is cut according to the required size, and then the tire blank strip is connected end to form a closed circular tire base body 1;

step two, die assembly: opening the upper mold 21 and the lower mold 22 of the molding mold 2, placing the tire base 1 in a cavity 23 inside the upper mold 21 and the lower mold 22, and then closing the molds;

step three, filling and injecting: injecting a filler A112 into the crown groove 111 through an injection pipe I3, wherein the filler A112 is made of a high-wear-resistance and anti-slippery rubber material, injecting a filler B132 into the sidewall groove 131 through an injection pipe II4, and the filler B132 is made of a foaming and other related light buffer materials;

step four, vulcanization molding: the tire matrix 1 filled with the filler A112, the filler B132 and the filler C141 in the forming mold 2 is subjected to cross-linking vulcanization, so that the filler A112, the crown groove 111, the filler B132 and the sidewall groove 131 are promoted to be cross-linked and combined to form a unified whole, and the fillers are tightly attached to the tire matrix 1; the hidden danger of joints of the tire base body 1 which is formed into a closed circular ring shape by connecting the tire strips end to end is solved, namely, the joints are over-tight, a convex state appears at the joints, the shape of the internal structure changes suddenly, bumping is easy to occur, and riding comfort is poor; the joint is loose, a sunken state appears at the joint, bumping and even breaking easily occur, riding comfort is poor, and potential safety hazards are large;

step five, demolding: the upper die 21 and the lower die 22 are removed, the die cavity 23 is opened, the molded tire is taken out, and the filler B132 filled in the sidewall part groove 131 and the filler C141 in the inner cavity 14 play a supporting role so as to bear the load of the tire, buffer action and the like; the filler A112 injected into the crown groove 111 serves as a tread to play roles of wear resistance, skid resistance and the like of the tire, so that different composite layers are used at each position of the tire according to the stress and consumption degree of the tire in the using process, and the cost is saved; the filler A112 is made of a high-wear-resistance and anti-slippery rubber material, so that the problems of tire jumping caused by uneven tire joints in a mould pressing process, potential safety hazards caused by fracture and elimination or early warning of the potential safety hazards can be solved.

In the embodiment, the core part of the tire blank strip extruded by the screw extruder is provided with an inner cavity penetrating through the head and the tail along the circumferential direction, the inner part of the tire blank strip is injected and filled with the filler C, the tire blank strip is cut according to the required size, then the tire blank strip is connected end to form a closed circular tire base body, and the filler C is made of foaming and other related light buffer materials, so that the weight of the tire body is reduced as much as possible, the cost is saved, and the tire base body is ensured to have better elasticity so as to ensure the riding comfort; when the sidewall groove 131 is located between the sidewall 13 and the tire bead 12, the filler B132 is made of a foaming or other light buffer material, the sidewall not in contact with the ground is made of the light buffer material, and is compounded with the tire crown made of a high-wear-resistance and anti-wet-skid tread rubber material, so that the weight of the tire body is reduced as much as possible, the cost is saved, the sufficient support strength of the tire body can be ensured, and the service life of the tire is prolonged; when the sidewall portion groove 131 is located between the crown 11 and the sidewall portion 13, the filler B132 is made of a wear-resistant and anti-slippery rubber material, and the sidewall portion groove 131 close to the crown 11 is filled with a wear-resistant and anti-slippery rubber material, so that the wear generated when the tire side portion 13 rubs with a brake pad is reduced as much as possible, the service life of the tire is prolonged, and the cost is saved.

The present invention and its embodiments have been described above schematically, and the description is not limited thereto, and what is shown in the drawings is only one of the embodiments of the present invention, and the actual structure is not limited thereto. Therefore, if the person skilled in the art receives the teaching of the present invention, without departing from the inventive spirit of the present invention, the person skilled in the art should also design the similar structural modes and embodiments without creativity to the technical solution, and all shall fall within the protection scope of the present invention.

Claims (5)

1. The utility model provides a fashioned inflation-free tire is filled to inner chamber, side wall, child crown, its characterized in that: comprising a tyre base body (1), the tyre base body (1) comprising a crown (11), a belly (12) and a sidewall portion (13); an inner cavity (14) penetrating through the head and the tail is formed in the core part of the tire base body (1) along the circumferential direction of the core part, a filler C (141) is filled in the inner cavity (14), and the filler C (141) is made of foaming and other related light buffer materials; the tire crown (11) is provided with a tire crown groove (111) along the circumferential direction, and the interior of the tire crown groove (111) is filled with a filler A (112).

2. The non-pneumatic tire of claim 1, wherein: the filler A (112) is made of a high-wear-resistance and anti-slippery rubber material.

3. The non-pneumatic tire of claim 1, wherein: a sidewall groove (131) is formed in the sidewall (13) along the circumferential direction of the sidewall, and the sidewall groove (131) is filled with filler.

4. The non-pneumatic tire of claim 3, wherein: the sidewall groove (131) is located between the sidewall (13) and the tire bead (12), the filler in the sidewall groove (131) is a filler B (132), and the filler B (132) is a light buffer material such as foam.

5. The non-pneumatic tire of claim 3, wherein: the side wall part groove (131) is located between a crown (11) and a side wall part (13), and filler in the side wall part groove (131) is filler A (112).

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