CN203246266U

CN203246266U - Liner band structure matched with heavy duty tire in use

Info

Publication number: CN203246266U
Application number: CN 201320200216
Authority: CN
Inventors: 陈秀雄
Original assignee: Cheng Shin Rubber Xiamen Ind Ltd
Current assignee: Cheng Shin Rubber Xiamen Ind Ltd
Priority date: 2013-04-19
Filing date: 2013-04-19
Publication date: 2013-10-23
Anticipated expiration: 2023-04-19

Abstract

Provided is a liner band structure matched with a heavy duty tire in use. A liner band comprises a liner band middle portion located on the bottom, liner band tail ends and liner band corner portions, wherein the two sides of the liner band middle portion stretch upwards with the thickness reduced gradually to form the liner band tail ends, and the liner band corner portions are located between the liner band middle portion and the line band tail ends. The width between the centers of the two liner band corner portions is 45% to 60% of that of a rim gutter, the thickness of the centers of the liner band corner portions is 10% to 20% of the half width of the whole liner band, the included angle of the corner edges of the inner surface of the liner band and the vertical line is 15 degrees to 25 degrees, and the included angle alpha of the corner edges of the outer surface of the liner band and the vertical line is 30 degrees to 40 degrees. Through the facts that the thickness of the liner corner portions is enlarged, the radian of the outer contour of the line band is improved, and gaps among the liner band corner portions, bead toes and the rim gutter are filled up, the anti-occlusion performance of the liner band corner portions under the situation of heavy duty is further improved, the occurrence of early damage of the liner band corner portions due to fierce occlusion and friction is avoided, and the service life of the liner band is ensured.

Description

The supporting lining band structure of using of a kind of heavy duty tire

Technical field

The utility model relates to a kind of lining structure of tyre, refers to especially the supporting lining band structure of using of a kind of heavy duty tire.

Background technology

Usually, the heavy-load automobile tire can be divided into two kinds of the inner tube of a tyre and inner tube free, and for easy to loading and unloading, the tire that specification is larger generally can adopt tube-tyre, and, for tube-tyre, for preventing the inner tube of a tyre when the Vehicle Driving Cycle and early damage occurs the violent friction of wheel rim, between wheel rim and the inner tube of a tyre, can add certain thickness lining band, be damaged because being subject to the violent friction of wheel rim to prevent the inner tube of a tyre, and then guarantee the service life of tire.

Yet, especially the overburden tire is in use for heavy duty tire, because of its stressed drastic deformation, as shown in Figure 1 and Figure 2, continual scuffing easily occurs between tire lip toe 1 ' and the rim gutter 2 ', and this scuffing occurs in the corner of lining band 3 ', and have gap 4 ' between the tire lip toe 1 ', rim gutter 2 ', lining band corner, violent interlock friction phenomenon easily damages corner, and then affects the service life of lining band 3 '.This case just produces thus.

The utility model content

The purpose of this utility model is to provide a kind of heavy duty tire the supporting lining band structure of using, and it is not in the situation that affect the tire heat dispersion, the service life of assurance lining band.

For achieving the above object, solution of the present utility model is:

The supporting lining band structure of using of a kind of heavy duty tire, this lining band is the ring body of a corresponding rim gutter, its cross section is one " U " type, namely comprises at the lining band of bottom middle part, both sides, lining band middle part extend upward lining band tail end that the thickness convergent forms and the lining band corner between lining band middle part and the lining band tail end; Wherein: the width between the two lining band corner centers is 45% to 60% of rim gutter width; And the thickness at lining band corner center be whole lining band width half 10% ~ 20%; The corner edges of this lining band inside face and the angle of vertical curve are 15 ° ~ 25 °, and the angle α of the corner edges of lining band outside face and vertical curve is 30 ° ~ 40 °.

The outer chamfering of described lining band corner is the chamfering of radius 25 ~ 35mm, and the interior chamfering of lining band corner is the chamfering of radius 45 ~ 55mm.

Described lining band center is provided with the pad hole, the bore dia in pad hole be between the two lining band corner centers width 15% ~ 20%.

Described pad hole is other be provided with have length, width and the degree of depth be so that the sunk area of tie spacer, wherein, the sunk area width be between the two lining band corner centers width 65% ~ 80%, the sunk area degree of depth is 1 ~ 3mm.

Described lining band interior thickness is by the distance along 0.7 ~ 0.9 times of sunk area length of the circumferential both sides skew of lining band from the pad centerline hole, to the distance along 1.0 ~ 1.2 times of sunk area length of the circumferential both sides skew of lining band is gradually thick variation from the pad centerline hole.

Described lining band interior thickness by the distance along 0.7 ~ 0.9 times of sunk area length of the circumferential both sides of lining band skew from the pad centerline hole be whole lining band width half 6% ~ 8%, and from the pad centerline hole lining band interior thickness of the distance along 1.0 ~ 1.2 times of sunk area length of the circumferential both sides skew of lining band be from the pad centerline hole be offset along the circumferential both sides of lining band 0.7 ~ 0.9 times of sunk area length distance the lining band interior thickness 120% ~ 160%.

After adopting such scheme, the supporting tire of using of heavy duty tire of the present utility model, by strengthening the thickness of lining band corner, improve lining band outline radian, fill up the gap between lining band corner, tire lip toe, the rim gutter, and then promote the bite-resistant performance of lining band corner under case of heavy load, and avoid lining band corner because being subjected to violent interlock and friction that earlier period damage occurs, guarantee the service life of lining band.

Description of drawings

Fig. 1 is the structure cutaway view that prior art heavy-load automobile tire cooperates with wheel rim;

Fig. 2 is the partial enlarged drawing of Fig. 1;

Fig. 3 is the structure cutaway view of the utility model lining band;

Fig. 4 is the partial top view of the utility model lining band;

Fig. 5 is the A-A part sectional view of the utility model lining band;

Fig. 6 is the structure cutaway view that the utility model heavy-load automobile tire cooperates with wheel rim.

The specific embodiment

Explain embodiment of the present utility model below in conjunction with accompanying drawing:

Such as Fig. 3,4,5,6 and in conjunction with shown in Figure 1, the utility model has disclosed the supporting lining band structure of using of a kind of heavy duty tire, this lining band 3 is the ring body of a corresponding rim gutter, its cross section is one " U " type, namely comprises at the lining band of

bottom middle part

31,31 both sides, lining band middle part extend upward lining band tail end 33 that the thickness convergent forms and the lining band corner 32 between lining band middle part 31 and the lining band tail end 33.

Key of the present utility model is: the width W between two lining band corners, 32 centers is 45% to 60% of rim gutter width RW; And the thickness N at lining band corner 32 centers is 10% ~ 20% of whole half W1 of lining band width.

When the width W between two lining band corners, 32 centers is excessive, be unfavorable for the mild transition of lining band turning 32 and wheel rim, and can not eliminate the gap between 32 places, lining band turning, tire lip toe, the rim gutter, early stage damage easily occurs in lining band; When the width W between two lining band corners, 32 centers was too small, lining band 3 can not tightly cooperate with tire, easily damage.

As shown in Figure 3, the corner edges of these lining band 3 inside faces and the angle β of vertical curve are 15 ° ~ 25 °, and the corner edges of lining band 3 outside faces and the angle α of vertical curve are 30 ° ~ 40 °, so, not only guarantee the assembly performance that lining band 3 is good, guaranteed that also lining band 3 two ends can mild round and smooth transition.

There are outer chamfering R and interior chamfering R ' in these 32 places, lining band turning, and wherein, outer chamfering R is the chamfering of radius 25 ~ 35mm, and interior chamfering R ' is the chamfering of radius 45 ~ 55mm, so, can guarantee the assembly performance that lining band is good.

In addition, 31 places also are provided with pad hole 4 at the lining band middle part, inner tube valve assembles thus, this pad hole 4 penetrates lining band, its bore dia W2 be between two lining band corners, 32 centers width W 15% ~ 20%, 4 other being provided with have length in the pad hole, the sunk area 5 of width and the degree of depth, wherein, sunk area 5 width W 3 be between two lining band corners, 32 centers width W 65% ~ 80%, sunk area 5 degree of depth t are 1 ~ 3mm, sunk area 5 length W4 look gasket width and arrange, general and pad carries out the free-running fit of 1 ~ 2mm, and the length of sunk area 5 rationally is set, width and the degree of depth are conducive to itself and good the cooperating of pad, so that pad is firm, and then guarantee that tire tube valve can be not impaired.

When the thickness N at lining band corner 32 centers is excessive, be unfavorable for the heat radiation of lining band 32 itself; When the thickness N at lining band corner 32 centers was too small, corner can not be tamped, the Connexin interlock between 32 places, lining band turning, tire lip toe, the rim gutter, the service life of shortening lining band.Lining band middle part 31 thickness are changed by N1 to N2, and N1＜N2, and N1 is 6% ~ 8% of whole half W1 of lining band width, and N2 is 120% ~ 160% of N1, thus mild transition, reinforcement the rigidity of lining band pad bore region, can guarantee the homogeneous of the whole longitudinal rigid of lining band.Please refer to Fig. 4, shown in Figure 5, lining band middle part 31 thickness N1 initial points are by the distance of pad centerline hole along 1.0 ~ 1.2 times of sunk area 5 length W4 of the circumferential both sides skew of lining band, and lining band middle part 31 thickness N2 initial points are by the distance of pad centerline hole along 0.7 ~ 0.9 times of sunk area 5 length W4 of the circumferential both sides skew of lining band.

The utility model is by strengthening turning width, reasonably turning thickness and special corner angle to lining band, make the gap between lining band corner, tire lip toe, the rim gutter be filled up (please refer to Fig. 6), and then the scuffing of avoiding lining band corner under case of heavy load, to occur, the service life of assurance lining band.

Claims

1. supporting lining band structure of using of heavy duty tire, this lining band is the ring body of a corresponding rim gutter, its cross section is one " U " type, namely comprises at the lining band of bottom middle part, both sides, lining band middle part extend upward lining band tail end that the thickness convergent forms and the lining band corner between lining band middle part and the lining band tail end; It is characterized in that: the width between the two lining band corner centers is 45% to 60% of rim gutter width; And the thickness at lining band corner center be whole lining band width half 10% ~ 20%; The corner edges of this lining band inside face and the angle of vertical curve are 15 ° ~ 25 °, and the angle α of the corner edges of lining band outside face and vertical curve is 30 ° ~ 40 °.

2. the supporting lining band structure of using of a kind of heavy duty tire as claimed in claim 1 is characterized in that: the outer chamfering of described lining band corner is the chamfering of radius 25 ~ 35mm, and the interior chamfering of lining band corner is the chamfering of radius 45 ~ 55mm.

3. the supporting lining band structure of using of a kind of heavy duty tire as claimed in claim 1 or 2, it is characterized in that: described lining band center is provided with the pad hole, the bore dia in pad hole be between the two lining band corner centers width 15% ~ 20%.

4. the supporting lining band structure of using of a kind of heavy duty tire as claimed in claim 3, it is characterized in that: described pad hole is other be provided with have length, width and the degree of depth be so that the sunk area of tie spacer, wherein, the sunk area width be between the two lining band corner centers width 65% ~ 80%, the sunk area degree of depth is 1 ~ 3mm.

5. the supporting lining band structure of using of a kind of heavy duty tire as claimed in claim 4, it is characterized in that: described lining band interior thickness is by the distance along 0.7 ~ 0.9 times of sunk area length of the circumferential both sides skew of lining band from the pad centerline hole, to the distance along 1.0 ~ 1.2 times of sunk area length of the circumferential both sides skew of lining band is gradually thick variation from the pad centerline hole.

6. the supporting lining band structure of using of a kind of heavy duty tire as claimed in claim 5, it is characterized in that: described lining band interior thickness by the distance along 0.7 ~ 0.9 times of sunk area length of the circumferential both sides of lining band skew from the pad centerline hole be whole lining band width half 6% ~ 8%, and from the pad centerline hole lining band interior thickness of the distance along 1.0 ~ 1.2 times of sunk area length of the circumferential both sides skew of lining band be from the pad centerline hole be offset along the circumferential both sides of lining band 0.7 ~ 0.9 times of sunk area length distance the lining band interior thickness 120% ~ 160%.