CN108790610A

CN108790610A - All-steel radial tyre shoulder Fin structures

Info

Publication number: CN108790610A
Application number: CN201810748033.2A
Authority: CN
Inventors: 袁时超; 陆炯; 周丽琰; 杨其振; 赵江华
Original assignee: Jiangsu General Science Technology Co Ltd
Current assignee: Jiangsu General Science Technology Co Ltd
Priority date: 2018-07-10
Filing date: 2018-07-10
Publication date: 2018-11-13

Abstract

The invention belongs to tire equipment technical fields, are related to a kind of all-steel radial tyre shoulder Fin structures, circumferentially shape is uniformly arranged several grooves to tire shoulder alar part, at an acute angle between groove and tire vertical center line；Groove includes outer groove and inside groove.The present invention solves middle-long distance transportation type card car all-steel radial tyre shoulder stress concentration, the excessive problem of heat reduces the problems such as shoulder is empty, improves the service life of tire, the security performance of tire is promoted, while improving the case where reducing tyre shoulders eccentric wear to a certain extent.

Description

All-steel radial tyre shoulder Fin structures

Technical field

The invention belongs to tire equipment technical fields, are related to a kind of all-steel radial tyre shoulder Fin structures.

Background technology

With the development and progress of country, the application of middle-long distance transportation type card car all-steel radial tyre is more and more, The performance of the tread shoulder of tire proposes the newer requirement of higher, but due to middle-long distance transportation type card car all-steel meridian line wheel The features such as tire load is high and speed is fast tread shoulder stress concentration, heat are excessively high, the problems such as shoulder is empty usually occur.Simultaneously because wheel The design of tire itself, manufacturing issue cause tyre shoulders inordinate wear excessive using problem, and Life of Tyre is caused to decline, The reason of leading to problems, is difficult to determine, so it is difficult to fundamentally solving.

Invention content

In view of the above-mentioned problems, providing a kind of all-steel radial tyre shoulder Fin structures, which can effectively carry the present invention High tire shoulder position heat dissipation effect, improves the service life of tire.

Technical solution according to the invention：A kind of all-steel radial tyre shoulder Fin structures, it is characterised in that：Tire shoulder alar part Circumferentially shape is uniformly arranged several grooves, at an acute angle between groove and tire vertical center line；Groove includes outer groove and inside groove.

As a further improvement on the present invention, the vertical distance between the notch upper extreme point and tire shoulder the outer end point of the groove For 5.5 ~ 6mm.

As a further improvement on the present invention, the width of rebate of the outer groove is 5.5mm, and the depth of outer groove is 8.5mm, interior The width of slot is 2mm.

As a further improvement on the present invention, the lower notch of the outer groove is arc transition structure.

As a further improvement on the present invention, it is 30 ° ~ 31 ° in angle between the groove and tire vertical center line.

As a further improvement on the present invention, chamfering is formed between the notch upper extreme point and the outer end point of tire shoulder of the outer groove Structure.

The technical effects of the invention are that：The present invention solves middle-long distance transportation type card car all-steel radial tyre shoulder Stress concentration, the excessive problem of heat reduce the problems such as shoulder is empty, improve the service life of tire, promote the security performance of tire, The case where raising reduces tyre shoulders eccentric wear to a certain extent simultaneously.

Description of the drawings

Fig. 1 is the structural diagram of the present invention.

Specific implementation mode

The specific implementation mode of the present invention is further described below in conjunction with the accompanying drawings.

As shown in Figure 1, the present invention is a kind of all-steel radial tyre shoulder Fin structures, circumferentially shape is uniformly distributed for 1 alar part of tire shoulder Several grooves 2 are set, it is at an acute angle between groove 2 and tire vertical center line, in concrete practice, during groove 2 is vertical with tire Between heart line in angle be 30 ° ~ 31 °；Groove 2 includes outer groove 2-1 and inside groove 2-2.

Vertical distance between 1 the outer end point of notch upper extreme point and tire shoulder of groove 2 is 5.5 ~ 6mm.

The width of rebate of outer groove 2-1 is 5.5mm, and the depth of outer groove 2-1 is 8.5mm, and the width of inside groove 2-2 is 2mm.

The lower notch of outer groove 2-1 is arc transition structure, and in tire production, gas vent is placed at arc transition structure, It can effectively prevent occurring starved round mouth phenomenon at this in sulfidation.

Chamfering structure is formed between the notch upper extreme point and the outer end point of tire shoulder 1 of outer groove 2-1.

Groove 2 in product of the present invention gos deep into tire shoulder, and it is long to improve tire for the effective heat dissipation for helping shoulder region Apart from prolonged driveability, the service life of tire is improved, reduces the shoulder sky phenomenon caused by shoulder heat is excessively high, is promoted The security performance of tire.

In addition, anomalies in material distribution or Slurry pump caused by due to design reasons, manufacture, lead to tire tread shoulder Occur exception under contouring shape load, occurs rolling friction between ground, exacerbate the abrasion of tread shoulder, tire occur The situation of eccentric wear, the invention have certain space since tire shoulder alar part devises groove 2 between pattern block on tire shoulder and alar part, The abnormal deformation that pattern block on tire shoulder occurs under load has certain buffering leeway, can slow down the situation of tire shoulder eccentric wear.

Claims

1. a kind of all-steel radial tyre shoulder Fin structures, it is characterised in that：Tire shoulder（1）Alar part circumferentially shape be uniformly arranged it is several Groove（2）, groove（2）It is at an acute angle between tire vertical center line；Groove（2）Including outer groove（2-1）And inside groove（2-2）.

2. all-steel radial tyre shoulder Fin structures as described in claim 1, it is characterised in that：The groove（2）Notch Upper extreme point and tire shoulder（1）Vertical distance between the outer end point is 5.5 ~ 6mm.

3. all-steel radial tyre shoulder Fin structures as described in claim 1, it is characterised in that：The outer groove（2-1）Slot Mouth width degree is 5.5mm, outer groove（2-1）Depth be 8.5mm, inside groove（2-2）Width be 2mm.

4. all-steel radial tyre shoulder Fin structures as described in claim 1, it is characterised in that：The outer groove（2-1）Under Notch is arc transition structure.

5. all-steel radial tyre shoulder Fin structures as described in claim 1, it is characterised in that：The groove（2）With tire Between vertical center line in angle be 30 ° ~ 31 °.

6. all-steel radial tyre shoulder Fin structures as described in claim 1, it is characterised in that：The outer groove（2-1）Slot Mouth upper extreme point and tire shoulder（1）The outer end point between form chamfering structure.