CN115008948A - Tread pattern structure of mine all-steel load-carrying radial tire - Google Patents

Abstract

The invention relates to a tread pattern structure of a mine all-steel load-carrying radial tire, which comprises a tire tread (1), wherein the tire tread (1) is formed by nine equal segmented molds, transverse pattern grooves (2) with opposite directions are respectively and uniformly distributed from the circumferential central line of the tire tread (1) to two side directions, the transverse pattern grooves (2) extend to the tire shoulder part all the time, shoulder lower pattern grooves (3) are arranged at the positions below shoulders, the transverse pattern grooves (2) move downwards step by step in a multi-layer stepped mode, and continuously convex lugs (5) are uniformly distributed at the groove bottom. Compared with the prior art, the novel pattern-form tire has higher water drainage and mud discharge, effectively prevents the groove bottom from cracking, ensures the even distribution of the bearing capacity of the tire due to the design of the deepened square groove and the widened running surface, improves the wear resistance of the tire, effectively improves the traction force of the tire and prolongs the service life of the tire; can effectively prevent the mutual abrasion of the tire sides during the double tire assembling.

Description

Tread pattern structure of mine all-steel load-carrying radial tire

Technical Field

The invention relates to the field of tire design, in particular to a tread pattern structure of a mine all-steel truck radial tire.

Background

A tire is a circular ring-shaped elastic rubber article for ground rolling, which is mounted on various vehicles or machines. Generally, the wheel is mounted on a metal rim, and can support a vehicle body, buffer external impact, realize contact with a road surface and ensure the driving performance of a vehicle. Tires are often used under complex and demanding conditions which are subjected to various deformations, loads, forces and high and low temperatures during driving, and therefore they must have high load-bearing, traction and cushioning properties. At the same time, high abrasion resistance and flexibility resistance, and low rolling resistance and heat build-up are also required. Half of the world's rubber usage is for tire production, and the ability of tires to consume rubber is seen.

The design of the tread pattern is varied and is considered for different applications, for the suitability of different road conditions and, when selected, also from these aspects. The tyre patterns play an important role in the whole driving process, and the reasonably designed patterns can effectively save oil, reduce the noise generated by the automobile in the driving process and enhance the driving force, braking force and traction performance of the automobile on various severe and slippery road surfaces, thereby improving the driving safety of the automobile.

The tread categories are generally of several types:

(1) straight groove patterns, also known as common patterns, are designed with longitudinal grooves as the main pattern.

The method is characterized in that: excellent steering stability, small rotation resistance, low noise, especially excellent drainage performance, and difficult lateral sliding.

The method is applicable to the following steps: the vehicle model is used for walking on a flat road: cars, trucks, and even airplanes.

The disadvantages are as follows: drive and drag forces are poor.

(2) Transverse groove patterns: the design of the patterns mainly comprising the transverse grooves.

The method is characterized in that: the driving force, braking force and traction force of the transverse groove patterns are particularly excellent, and the wear resistance of the transverse groove patterns is excellent.

The method is applicable to: the vehicle type is used on bad road surfaces such as broken stone roads and the like: are mostly used in industrial, medium and short-haul vehicles such as bulldozers, excavators, loaders, etc., and heavy goods vehicles.

The disadvantages are as follows: the noise is large.

(3) Longitudinal and transverse groove patterns: the longitudinal and transverse groove patterns are also called comprehensive patterns, and are designed by combining straight groove patterns and transverse groove patterns.

The method is characterized in that: has the advantages of longitudinal groove and transverse groove patterns.

The method is applicable to the following steps: on a bad road surface.

The disadvantages are as follows: abnormal abrasion is easily generated.

(4) Block-shaped patterns: the patterns are regularly arranged in blocks.

The method is characterized in that: the driving force and the braking force are good, and the force for driving the vehicle to move forwards is provided.

The method is applicable to the following steps: snow, muddy and the like.

The disadvantages are as follows: poor wear resistance and short mileage life.

The main driving route of the mine type all-steel truck radial tire in the market is a severe ore region gravel mixed road surface, the main quality defect of the tire is that the tread is cracked and falls into blocks and is not wear-resistant, the tire has high requirements on the driving surface width and the tread grooves, and has low heat generation, good wear resistance, puncture resistance, cracking and block falling prevention and novel appearance.

Chinese patent ZL201220038056.2 discloses a tread pattern structure of an all-steel load mineral mountain type radial tire, which comprises a tire tread and uniformly distributed patterns on the tire tread; the tire tread comprises nine equal segmented molds, and along the supreme, lower side plate direction of tire tread circumference central line, evenly distributed respectively has the horizontal ditch decorative pattern that the structure is the same, opposite direction, horizontal ditch decorative pattern is short eight corner shape form structure, all is provided with three columniform row of stone post on every horizontal ditch decorative pattern's the ditch end, and every horizontal ditch decorative pattern's the ditch end all has unique strengthening rib design, makes the ditch end stronger, and every horizontal ditch groove head has the transition angle that increases. Small patterns are distributed on the shoulder part and the side part of the tire. The tire in the pattern form has higher overload capacity and impact resistance, reduces the probability of early damage of the tire caused by puncture, cut, stone clamping and the like, and still has the problem of partial shoulder space.

Disclosure of Invention

The invention aims to overcome the defects in the prior art and provide a tread pattern structure of a mine all-steel truck radial tire, which is puncture-resistant, does not collapse flowers, does not drop blocks and is not laterally hollow, and is a novel explosion-proof crown band structure applied to impact burst resistance; the design of deepened square patterns and widened driving surface ensures that the bearing capacity of the tire is uniformly distributed, the wear resistance of the tire is improved, the traction force of the tire is effectively improved, and the service life of the tire is effectively prolonged; the special tire side curve design and the design of the shoulder lower tire side scratch-resistant broken stone decoration effectively prevent the mutual abrasion of the tire sides during the double tire assembling.

The purpose of the invention can be realized by the following technical scheme: the utility model provides a mine type all steel load radial tire tread pattern structure, includes tire tread, tire tread comprises nine equal divisions of moulds, along tire tread circumference central line to both sides direction, respectively evenly distributed opposite direction's horizontal groove, this horizontal groove extends to tire shoulder position all the time to the department is equipped with shoulder lower groove under the shoulder, horizontal groove with multilayer step mode move down step by step to evenly arrange continuous convex lug at the groove bottom. The tread of the tyre is provided with the transverse pattern grooves of the transverse blocks, the running surface is wide, the pattern is deep, the driving force, the braking force and the traction force are particularly excellent, the wear resistance is excellent, the pattern groove wall adopts a step design, the lug bosses are additionally arranged at the groove bottom to prevent hard objects such as stones from being punctured, the groove bottom is effectively prevented from being cracked, and the drainage performance and the mud discharge performance are excellent. And heat dissipation holes and heat dissipation grooves are distributed in the center of the tire tread and below the shoulders of the tire.

Horizontal tread groove move down step by step with three-layer step mode, the reentrant corner department of every step all adopts the circular arc transition, improves the shoulder heat dissipation, avoids the shoulder to split, preceding two-layer circular arc radius is 2mm, third layer circular arc radius is 4mm, moves down the height from last to increasing step by step down, be 6mm,10mm,14mm respectively.

The height of the lugs uniformly distributed at the bottoms of the transverse grooves is 5 mm.

The quantity of the lugs uniformly distributed at the bottom of the same transverse groove is 5, which plays roles of removing stones and bouncing stones, prevents stones from being clamped and impales the groove bottom.

The under-shoulder groove is formed by extending the transverse groove to the shoulder part, and the depth of the under-shoulder groove is 5 mm.

The transverse pattern groove and the shoulder lower pattern groove are both square.

Along the central line evenly distributed of tire tread circumference a plurality of vertical decurrent heat dissipation holes, the degree of depth 12mm in heat dissipation hole, hole end are the semicircle transition, reduce the themogenesis in the tire use, in the protection hat, avoid delaminating to fall the piece.

A plurality of oval heat dissipation ditches are evenly distributed among the shoulder lower pattern grooves, the total depth of the heat dissipation ditches is 10mm, the heat dissipation ditches descend and transition in a step mode, the internal corners and the external corners of the turning positions are in arc transition, the heat dissipation area is enlarged, the heat generation in the use process of the tire is reduced, and the shoulder space and the shoulder crack are reduced.

The tire tread pattern pitch be 27 sections, nine equal divisions of segmented mould evenly are provided with 2 rows of square horizontal tread groove respectively to the upper plate, lower side plate direction.

Exhaust holes are arranged on two sides of the transverse pattern groove and the edge of the shoulder part.

The tire tread contains special tire side curve design and shoulder lower tire side anti-friction rubble and decorates the design, effectively prevents the tire side wearing and tearing each other when the double tire is installed.

Compared with the prior art, the invention has the following characteristics:

1) the tread pattern structure of the mine all-steel truck radial tire comprises a tire body, wherein the tire body comprises a wheel disc and a tread, transverse groove patterns of transverse blocks are enlarged on the tread, the running surface is wide, the patterns are deep, the driving force, the braking force and the traction force are particularly excellent, and the wear resistance is excellent. The tire tread is composed of nine equal segmented dies, transverse pattern grooves in opposite directions are respectively and uniformly distributed from the center line to the two sides of the tire tread in the circumferential direction, the pattern groove walls are designed in a stepped mode, the groove bottom is additionally provided with a boss to prevent hard objects such as stones from being punctured, the groove bottom is effectively prevented from being cracked, the water drainage performance and the mud discharge performance are good, and heat dissipation holes and heat dissipation grooves are distributed in the center of the tire tread and under the shoulders of the tire. The heat dissipation in the running process of the tire is facilitated, and the shoulder is protected to avoid the early shoulder vacancy problem.

2) The pattern pitch of the invention is 27 sections, nine equal parts of segmented molds are respectively and evenly provided with 2 rows of square transverse pattern grooves in the directions of the upper side plate and the lower side plate, and the pattern grooves extend to the tire shoulder part. The decorative pattern degree of depth is 30mm, and the tread groove moves down step by step with three-layer step mode, and the reentrant corner department of every step all adopts the circular arc transition, and preceding two-layer circular arc radius 2, third layer circular arc radius 4mm move down the height and increase step by step, are 6mm,10mm,14mm respectively, guarantee the excellent stab-resistant and arrange the stone effect. The square groove extends to the square grooves uniformly distributed under the shoulder, and the depth of each square groove is 5mm, so that excellent heat dissipation performance, puncture resistance and high wear resistance are provided for the tire in use.

3) The decorative patterns have excellent puncture resistance, do not collapse, fall blocks and have no side hollowness, and the novel explosion-proof crown belt structure is applied to resist impact explosion; the design of deepened square patterns and widened driving surface ensures that the bearing capacity of the tire is uniformly distributed, the wear resistance of the tire is improved, the traction force of the tire is effectively improved, and the service life of the tire is effectively prolonged; the special tire side curve design and the design of the shoulder lower tire side scratch-resistant broken stone decoration effectively prevent the mutual abrasion of the tire sides during the double tire assembling.

Drawings

FIG. 1 is a schematic structural view of a tire tread pattern of the present invention;

FIG. 2 is a schematic structural view of one pitch of the tire tread pattern of the present invention;

FIG. 3 is a schematic view of the stepped stepwise downward shifting portion of the transverse groove of the present invention;

FIG. 4 is a structural effect diagram of the tire tread pattern of the present invention;

FIG. 5 is a lower shoulder trim line;

in the figure: 1-a tire tread; 2-transverse pattern grooves; 3-shoulder lower pattern grooves; 4-heat dissipation ditch; 5-a bump; 6-heat dissipation holes; 7-air vent.

Detailed Description

The tread pattern structure of a mine type all-steel truck radial tire of the present invention, which provides a superior wear resistance, will be described in more detail with reference to the schematic drawings, in which preferred embodiments of the present invention are shown, it being understood that those skilled in the art can modify the invention described herein while still achieving the advantageous effects of the present invention. Accordingly, the following description should be construed as broadly as possible to those skilled in the art and not as limiting the invention.

As shown in figures 1-5, the invention provides a tread pattern structure of an all-steel load tubeless radial tire, wherein a transverse groove 2, an under-shoulder groove 3, a heat dissipation groove 4, a bump 5, a heat dissipation hole 6 and an exhaust hole 7 are arranged on a tire tread 1.

The tire tread 1 is provided with two rows of transverse grooves 2 with enlarged transverse blocks, the driving surface is wide, the grooves are deep, the driving force, the braking force and the traction force are particularly excellent, and the wear resistance is excellent. The tire tread 1 comprises nine equal segmented dies, transverse groove grooves 2 in opposite directions are respectively and uniformly distributed along the circumferential central line of the tire tread 1 to the directions of two sides, the wall of each groove adopts a step design, and the groove bottom is provided with convex blocks to prevent hard objects such as stones from stabbing, so that the groove bottom is effectively prevented from being cracked, and the water drainage performance and the mud discharge performance are good. And the center and the lower part of the tread of the tire are distributed with a heat dissipation hole 6 and a heat dissipation groove 4.

Specifically, the pattern pitch of the tire tread 1 is 27 knots (fig. 2 is a structural schematic diagram of one pitch), the nine equal parts of segmented molds are respectively and uniformly provided with 2 rows of square transverse grooves 2 in the directions of the upper side plate and the lower side plate, and the transverse grooves 2 extend to the tire shoulder part to form square under-shoulder grooves 3. The degree of depth of horizontal groove 2 is 30mm, and horizontal groove 2 moves down step by step with three-layer step mode, and the reentrant corner department of every step all adopts the circular arc transition, and preceding two-layer circular arc radius R2 equals 2mm, and third layer circular arc radius R3 equals 4mm, and the height that moves down increases step by step, is 6mm respectively, 10mm,14mm (as shown in fig. 3), guarantees the excellent stab-resistant and arranges the stone effect. The square under-shoulder pattern grooves which are uniformly distributed and extend from the square transverse pattern grooves 2 to the under-shoulder pattern grooves are 3 mm deep, and arc transition is adopted at the transition part and the groove bottom, so that the heat dissipation of the shoulder part is improved, and the shoulder crack is avoided.

The tire tread evenly arranges 5 continuous convex lugs 5 along the 2 groove bottoms of the transverse tread groove of the tire tread, the height of each lug 5 is 5mm, and the fillet radius R1 of each lug 5 is 1mm to play the roles of removing stones and bouncing stones, so that the stones are prevented from being clamped and the groove bottoms are pierced.

A plurality of vertically downward exhaust heat dissipation holes 6 are uniformly distributed on the tire tread 1 along the central line of the tire tread circumference, the depth of each heat dissipation hole 6 is 12mm, the hole bottom is in semi-circular arc transition, heat generation in the use process of the tire is reduced, and delamination and block falling are avoided in a protective crown.

A plurality of oval heat dissipation ditches 4 of evenly distributed between the tread groove 3 under the shoulder of tire tread 1, heat dissipation ditch 4 total depth 10mm to step mode decline transition, the reentrant corner and the external corner of turn department all adopt the circular arc transition, and circular arc radius R5 is 5mm ═ 5mm, increases heat radiating area, reduces the themogenesis in the tire use, reduces shoulder sky and shoulder and splits.

The tire tread 1 contains special tire side curve design and shoulder lower tire side anti-friction rubble decoration design, effectively prevents that the tire side from wearing and tearing each other when the double tire is installed.

After the tire pattern structure is adopted, the performance test is carried out according to the enterprise standard of the all-steel radial tire indoor test standard Q/XJ10706-2021 as follows (the enterprise standard is higher than the national standard GB/T4501-2016): the common endurance test conditions are 830kpa of air pressure, 3750kg of standard load (according to 18 levels), 50km/h of starting speed, constant speed, and 10% of load increase every 5h after 47h until the tire is damaged; the tire of the invention has the following ordinary endurance time: the tire is divided into 30 minutes in 62 hours, and the tire with the existing tire has the common durability of 54 hours and 23 minutes. Compared with the prior tire, the tire is improved by 8 hours and 07 minutes. In the strength test, the first four points: 3051, fifth point pressing through: 8624.9, maximum failure energy/standard value: 283% puncture, in the existing tire specification strength test, the first four points: 3051, fifth point pressing through: 6867.5 maximum failure energy/standard value 228.4% puncture. The experiment of indoor experimental strength and outdoor actual loading mileage proves that the indoor strength performance and the outdoor driving mileage of the mine type all-steel radial tire are greatly improved, the pattern form of the mine type all-steel radial tire has higher strength and wear resistance, and the probability of early damage of the tire caused by shoulder space, crown space, tread, non-wear resistance and the like is reduced.

Finally, it should be noted that: it should be understood that the above examples are only for clearly illustrating the present invention and are not intended to limit the embodiments. Other variations and modifications will be apparent to persons skilled in the art in light of the above description. And are neither required nor exhaustive of all embodiments. And obvious variations or modifications of the invention may be made without departing from the scope of the invention.

Claims (10)

1. The utility model provides an all steel load radial tire tread pattern structure of mine type, includes tire tread (1), tire tread (1) comprises nine equal divisions loose mould, its characterized in that, along tire tread (1) circumferential central line to both sides direction, respectively evenly distributed opposite direction's horizontal tread groove (2), this horizontal tread groove (2) extend to the tire shoulder position all the time to department is equipped with under the shoulder tread groove (3) under the shoulder, horizontal tread groove (2) move down step by step with multilayer step mode to evenly arrange continuous convex lug (5) at the bottom of the groove.

2. The tread pattern structure of all-steel truck radial tire for mine type according to claim 1, wherein the transverse grooves (2) move downwards step by step in a three-layer step manner, the reentrant corner of each step adopts circular arc transition, the circular arc radius of the first two layers is 2mm, the circular arc radius of the third layer is 4mm, and the height of downward movement is increased step by step from top to bottom and is respectively 6mm,10mm and 14 mm.

3. The tread pattern structure of all-steel truck radial tire for mine type according to claim 1 or 2, wherein the height of the lugs (5) uniformly arranged on the bottom of the transverse grooves (2) is 5 mm.

4. The tread pattern structure of all-steel truck radial tire for mine type according to claim 3, wherein the number of the projections (5) uniformly arranged on the bottom of the same transverse groove (2) is 5.

5. The tread pattern structure of all-steel truck radial tire for mine type according to claim 1, wherein the under-shoulder groove (3) is formed by extending the lateral groove (2) to the shoulder portion, and has a depth of 5 mm.

6. The mine type all-steel truck radial tire tread pattern structure according to claim 1, characterized in that the lateral grooves (2) and the under-shoulder grooves (3) are both square.

7. The tread pattern structure of the mine all-steel truck radial tire as claimed in claim 1, wherein a plurality of vertically downward heat dissipation holes (6) are uniformly distributed along the circumferential center line of the tire tread (1), the depth of the heat dissipation holes (6) is 12mm, and the hole bottom is in semicircular arc transition.

8. The tread pattern structure of all-steel truck radial tire in mine form of claim 1, characterized in that a plurality of elliptical heat dissipation grooves (4) are uniformly distributed among the plurality of under-shoulder grooves (3), the total depth of the heat dissipation grooves (4) is 10mm, the transition is made in a step-down manner, and the internal corner and the external corner at the turning point are both in arc transition.

9. The tread pattern structure of all-steel truck radial tire in mine form of claim 1, wherein the pattern pitch of the tire tread (1) is 27 knots, nine equal parts of segmented mold are respectively and uniformly provided with 2 rows of square transverse grooves (2) in the direction of the upper side plate and the lower side plate.

10. The tread pattern structure of all-steel truck radial tire in mine form according to claim 1, wherein the lateral grooves (2) are provided with vent holes (7) at both sides and at the shoulder edges.

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