CN220298235U - Engineering tire - Google Patents

Abstract

The utility model provides an engineering tire, which belongs to the technical field of tires, and comprises pattern block groups, wherein the pattern block groups extend along the radial direction of the tread of the engineering tire, bent transverse grooves extending along the radial direction of the tread are defined between adjacent pattern block groups, and the pattern block groups and the transverse grooves are alternately and repeatedly arranged along the circumferential direction of the tread; the pattern block group further comprises a left block, a middle block and a right block which are arranged from the left side of the tread to the right side of the tread, wherein a first longitudinal groove is defined between the left block and the middle block, a second longitudinal groove is defined between the middle block and the right block, and the first longitudinal groove and the second longitudinal groove extend to a communicating transverse groove on the tread along the same direction and the same inclination angle. The utility model solves the technical problem that the existing engineering truck tire can not simultaneously meet the requirements of high wear resistance, high load and low heat generation, and has the characteristics of high wear resistance, high load and low heat generation.

Description

Engineering tire

Technical Field

The utility model belongs to the technical field of tires, and particularly relates to an engineering tire.

Background

The tyre is an important component of the vehicle, wherein the engineering vehicle tyre is a ground-rolling annular elastic rubber product assembled on the engineering vehicle, so that the engineering vehicle can run normally. Because engineering vehicles are often used under complex and severe conditions, the engineering vehicle tires bear various deformation, load, force and high and low temperature actions during running, and therefore, the engineering vehicle tires have to have high explosion resistance, bearing performance and puncture resistance.

In recent years, the automobile industry has proposed requirements such as high wear resistance, high load, low heat generation and the like for engineering tires according to the scenes of engineering vehicles, and in order to meet the requirements, all known tire factories develop and push out engineering tires with high load resistance and low heat generation.

Disclosure of Invention

The details of one or more embodiments of the utility model are set forth in the accompanying drawings and the description below to provide a more thorough understanding of the other features, objects, and advantages of the present application.

The utility model provides an engineering tire, solves the technical problem that the existing engineering tire cannot meet the requirements of high wear resistance, high load and low heat generation at the same time, and has the characteristics of high wear resistance, high load and low heat generation.

The utility model discloses an engineering tire, which comprises pattern block groups, wherein the pattern block groups extend along the radial direction of the tread of the engineering tire, bent transverse grooves extending along the radial direction of the tread are defined between adjacent pattern block groups, and the pattern block groups and the transverse grooves are alternately and repeatedly arranged along the circumferential direction of the tread; the block group further includes a left block, a middle block, and a right block arranged from the left side of the tread to the right side of the tread, a first longitudinal groove is defined between the left block and the middle block, a second longitudinal groove is defined between the middle block and the right block, and the first longitudinal groove and the second longitudinal groove extend on the tread to communicate with the lateral groove along the same direction and the same inclination angle.

In some of these embodiments, the ratio of the width of the lateral groove to the width of the pitch defined between adjacent left blocks is 40%, the ratio of the width of the lateral groove to the width of the pitch defined between adjacent middle blocks is 30%, and the ratio of the width of the lateral groove to the width of the pitch defined between adjacent right blocks is 40%.

In some of these embodiments, the left block and the right block, and the first longitudinal groove and the second longitudinal groove are centrally symmetric about the middle block; the ratio of the width of the first longitudinal groove to the width of the second longitudinal groove to the width of the driving surface is 8% -9%, and the depth of the first longitudinal groove to the depth of the second longitudinal groove is 1/2 of the depth of the transverse groove.

In some of these embodiments, the lateral boundaries of the middle block adjacent to the lateral grooves are chamfered with an arc of any value having a radius of 12-16 mm.

In some of these embodiments, the width ratio of the middle block to the left block is any one of 2.1-2.3 and the width ratio of the middle block to the right block is any one of 2.1-2.3.

In some embodiments, the adjacent middle blocks are connected by adopting reinforcing ribs with the width of 30-35mm and the depth of 1/3-1/2 of the depth of the transverse ditch; the inclination angle of the reinforcing rib is opposite to the inclination angles of the first longitudinal groove and the second longitudinal groove.

In some of these embodiments, a side pattern is defined between the left side and left shoulder of the left block, and between the right side and right shoulder of the right block, the side pattern having a width of 70-80% of the width of the left or right block, the side pattern having a depth of any one of 10-15 mm.

In some embodiments, a first steel sheet group parallel to the first longitudinal groove is arranged in the middle of the left block, and the first steel sheet group comprises three left block steel sheets which are arranged in a tower shape from left to right; the middle part of the right block is provided with a second steel sheet group which is parallel to the second longitudinal groove, and the second steel sheet group comprises three right block steel sheets which are arranged in a tower shape from right to left.

In some embodiments, the lengths of the three left steel sheets arranged from left to right are sequentially 40mm, 25mm and 10mm, the widths are sequentially 4mm, 3mm and 2mm, and the depths are sequentially 3/4, 1/2 and 1/4 of the depths of the transverse grooves; the lengths of the three right steel sheets arranged from right to left are sequentially 40mm, 25mm and 10mm, the widths are sequentially 4mm, 3mm and 2mm, and the depths are sequentially 3/4, 1/2 and 1/4 of the depths of the transverse grooves.

In some embodiments, the middle part of the middle block is provided with a middle block steel sheet, the extending direction of the middle block steel sheet is parallel to the transverse boundary of the middle block, the middle block steel sheet comprises end parts at two ends and a middle part with two ends connected with the two end parts, the width of the end parts is 3mm, the width of the middle part is 5mm, the depth of the end parts is 1/3 of the depth of the transverse groove, and the depth of the middle part is 1/2 of the depth of the transverse groove.

Compared with the prior art, the utility model has the beneficial effects that:

the utility model provides an engineering tire, which adopts a pattern block group formed by three large blocks and a bent transverse groove design which traverses the whole running surface, so that the driving performance of the engineering tire can be ensured, the accumulated water energy groove on a wet road surface can be rapidly discharged, the traction performance and the passing performance of the engineering tire on a poor road and a muddy road surface can be fully exerted, meanwhile, the tire tread has better heat dissipation performance through the design of the transverse groove, the first longitudinal groove and the second longitudinal groove, the early damage of the tire crown and the like can be effectively reduced, and the high wear resistance, the high load and the low heat generation performance of the engineering tire are effectively ensured;

the utility model provides an engineering tire, which has the advantages that by adopting a wider transverse groove design, the grounding trace of the tire is more reasonable, the heat generation at the tread part is reduced, meanwhile, the heat generated at the tread part in the running process of the tire can be timely emitted and discharged, and the early-stage damage of the crown space of the tire caused by the overheat at the tread part is reduced; through the design of the first longitudinal groove and the second longitudinal groove, the heat dissipation performance of the engineering tire is further improved.

Drawings

The accompanying drawings, which are included to provide a further understanding of the utility model and are incorporated in and constitute a part of this specification, illustrate embodiments of the utility model and together with the description serve to explain the utility model and do not constitute a limitation on the utility model. In the drawings:

FIG. 1 is a schematic view of an engineering tire according to an embodiment of the present utility model;

in the above figures: 101. a left block; 102. a middle block; 103. a right block; 2. a transverse ditch; 301. a first longitudinal groove; 302. a second longitudinal groove; 4. reinforcing ribs; 5. flower setting; 601. a first steel sheet group; 602. a second steel sheet group; 603. and a middle piece of steel sheet.

Detailed Description

The present utility model will be described and illustrated with reference to the accompanying drawings and examples in order to make the objects, technical solutions and advantages of the present utility model more apparent. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the scope of the utility model. All other embodiments, which can be made by a person of ordinary skill in the art based on the embodiments provided by the present utility model without making any inventive effort, are intended to fall within the scope of the present utility model.

The embodiment of the utility model provides an engineering tire, and fig. 1 is a schematic structural view of the engineering tire according to the embodiment of the utility model. Referring to fig. 1, the engineering tire comprises block groups, wherein the block groups extend along the radial direction of the tread of the engineering tire, bent transverse grooves 2 extending along the radial direction of the tread are defined between adjacent block groups, and the block groups and the transverse grooves 2 are alternately and repeatedly arranged along the circumferential direction of the tread; the block group further includes a left block 101, a middle block 102, and a right block 103 arranged from the left side of the tread to the right side of the tread, a first longitudinal groove 301 is defined between the left block 101 and the middle block 102, a second longitudinal groove 302 is defined between the middle block 102 and the right block 103, and the first longitudinal groove 301 and the second longitudinal groove 302 extend on the tread to the communication lateral groove 2 at the same inclination angle in the same direction. The engineering tire adopts the design of the pattern block group formed by three large blocks and the bent transverse groove 2 which crosses the whole running surface, so that the driving performance of the engineering tire can be ensured, the accumulated water energy groove on a wet and slippery road surface can be rapidly discharged, the traction performance and the passing performance of the engineering tire on a poor road and a muddy road surface can be fully exerted, meanwhile, the tire tread has better heat dissipation performance through the design of the transverse groove 2, the first longitudinal groove 301 and the second longitudinal groove 302, the early-stage damage of the tire crown and the like can be effectively reduced, and the high wear resistance, the high load and the low heat generation performance of the engineering tire are effectively ensured.

In order to make the tire footprint more reasonable, reduce the heat generation at the tread part, simultaneously make the tire in the driving process produce the heat in the tread part and in time distribute and discharge, reduce the early damage of the tire crown space that is caused by the overheat at the tread part, the ratio of the width of the transverse groove 2 to the width of the pitch that is defined between the adjacent left blocks 101 is 40%, the ratio of the width of the transverse groove 2 to the width of the pitch that is defined between the adjacent middle blocks 102 is 30%, and the ratio of the width of the transverse groove 2 to the width of the pitch that is defined between the adjacent right blocks 103 is 40%. In order to further improve the heat dissipation performance of the engineering tire, the front-stage damage of the tire crown blank and the like is effectively reduced, and the center symmetry is formed between the left block 101 and the right block 103 and between the first longitudinal groove 301 and the second longitudinal groove 302 with respect to the middle block 102; the ratio of the width of the first vertical groove 301 to the width of the second vertical groove 302 to the width of the running surface is 8% -9%, and the depth of the first vertical groove 301 and the second vertical groove 302 is 1/2 of the depth of the transverse groove 2.

The embodiment further limits that the transverse boundary of the middle block 102 adjacent to the transverse groove 2 is chamfered by adopting an arc with a radius of any value of 12-16mm, and ensures that the corners of the pattern blocks of the middle block 102 are free from sharp angles, thereby avoiding the damage such as block dropping, gouging and the like of the corners of the pattern blocks during use and prolonging the service life of the engineering tire.

In order to ensure a better footprint of the tire, ensure a uniform tire footprint pressure distribution, and reduce premature wear, gouging, etc. of the tire in the early stages, another embodiment of the present utility model defines any value of the width ratio of the center block 102 to the left block 101 of 2.1-2.3 and any value of the width ratio of the center block 102 to the right block 103 of 2.1-2.3 by finite element simulation.

Further, in this embodiment, the adjacent middle blocks 102 are connected by using the reinforcing ribs 4 with the width of 30-35mm and the depth of 1/3-1/2 of the depth of the transverse ditch 2; the inclination angle of the reinforcing rib 4 is opposite to the inclination angle of the first longitudinal groove 301 and the second longitudinal groove 302, so that the phenomenon of breaking blocks in the use process of the engineering tire is effectively avoided.

In another embodiment of the utility model, the left side of the left block 101 and the left shoulder and the right side of the right block 103 and the right shoulder define a flower 5, the width of the flower 5 being 70-80% of the width of the left or right block 103, the depth of the flower 5 being any one of 10-15 mm. The pattern of the engineering tire adopts a large open shoulder design, so that the heat accumulation at the tire shoulder part can be effectively reduced, the early damage of the tire caused by shoulder space is reduced, the durability of the tire is improved, and the service life of the tire is prolonged.

Further, the middle part of the left block 101 is provided with a first steel sheet group 601 parallel to the first longitudinal groove 301, and the first steel sheet group 601 comprises three left block 101 steel sheets which are arranged in a tower shape from left to right; the middle part of the right block 103 is provided with a second steel sheet group 602 parallel to the second longitudinal groove 302, and the second steel sheet group 602 comprises three right block 103 steel sheets which are arranged in a tower shape from right to left. Preferably, the lengths of the three left blocks 101 steel sheets arranged from left to right are sequentially 40mm, 25mm and 10mm, the widths are sequentially 4mm, 3mm and 2mm, and the depths are sequentially 3/4, 1/2 and 1/4 of the depths of the transverse grooves 2; the lengths of the three right blocks 103 steel sheets arranged from right to left are sequentially 40mm, 25mm and 10mm, the widths are sequentially 4mm, 3mm and 2mm, and the depths are sequentially 3/4, 1/2 and 1/4 of the depths of the transverse grooves 2. The gradual change type steel sheet design is added to the edge blocks of the engineering tire, so that the heat dissipation performance of the tire can be effectively improved.

In order to further improve the traction performance of the tire, a middle steel sheet 603 is disposed in the middle of the middle block 102, the extending direction of the middle steel sheet 603 is parallel to the lateral boundary of the middle block 102, the middle steel sheet 603 includes end portions at both ends and a middle portion where both ends are connected, the width of the end portions is 3mm, the width of the middle portion is 5mm, the depth of the end portions is 1/3 of the depth of the transverse groove 2, and the depth of the middle portion is 1/2 of the depth of the transverse groove 2.

The engineering tire provided by the utility model is beneficial to improving the heat dissipation performance of the tire crown and tire shoulder parts of the engineering tire through the design of tire patterns, can effectively reduce the heat concentration of the tire crown and tire shoulder parts in the actual use process, greatly reduce the tire damage caused by the tire crown, the tire shoulder and the like, and also reduce the tire reimbursement caused by the tire crown and tire shoulder disease symptoms by 10 percent under the condition.

The technical features of the above-described embodiments may be arbitrarily combined, and all possible combinations of the technical features in the above-described embodiments are not described for brevity of description, however, as long as there is no contradiction between the combinations of the technical features, they should be considered as the scope of the description.

The above examples illustrate only a few embodiments of the utility model, which are described in detail and are not to be construed as limiting the scope of the utility model. It should be noted that it will be apparent to those skilled in the art that several variations and modifications can be made without departing from the spirit of the utility model, which are all within the scope of the utility model. Accordingly, the scope of protection of the present utility model is to be determined by the appended claims.

Claims (10)

1. An engineering tire, comprising:

a block group extending radially along a tread of the engineering tire,

defining a bent transverse groove extending along the radial direction of the tread between adjacent pattern block groups, wherein the pattern block groups and the transverse groove are alternately and repeatedly arranged along the circumferential direction of the tread;

the block group further includes a left block, a middle block, and a right block arranged from the left side of the tread to the right side of the tread, a first longitudinal groove is defined between the left block and the middle block, a second longitudinal groove is defined between the middle block and the right block, and the first longitudinal groove and the second longitudinal groove extend on the tread to communicate with the lateral groove along the same direction and the same inclination angle.

2. A run-flat tire according to claim 1, wherein the ratio of the width of the lateral groove to the width of the pitch defined between adjacent left blocks is 40%, the ratio of the width of the lateral groove to the width of the pitch defined between adjacent center blocks is 30%, and the ratio of the width of the lateral groove to the width of the pitch defined between adjacent right blocks is 40%.

3. The engineering tire of claim 1, wherein between the left block and the right block, and between the first longitudinal groove and the second longitudinal groove, are centered about the center block; the ratio of the width of the first longitudinal groove to the width of the second longitudinal groove to the width of the driving surface is 8% -9%, and the depth of the first longitudinal groove to the depth of the second longitudinal groove is 1/2 of the depth of the transverse groove.

4. A tyre as claimed in claim 1, wherein the lateral boundaries of said intermediate blocks adjacent to said transverse grooves are chamfered with circular arcs of any value of radius 12-16 mm.

5. A construction tyre according to claim 1, wherein the ratio of the width of the middle block to the left block is any value from 2.1 to 2.3 and the ratio of the width of the middle block to the right block is any value from 2.1 to 2.3.

6. An engineering tire according to claim 1, wherein adjacent middle blocks are connected by reinforcing ribs with a width of 30-35mm and a depth of 1/3-1/2 of the depth of the transverse groove; the inclination angle of the reinforcing rib is opposite to the inclination angles of the first longitudinal groove and the second longitudinal groove.

7. A construction tyre according to claim 1, wherein a side pattern is defined between the left side of the left block and the left shoulder and between the right side of the right block and the right shoulder, the width of the side pattern being 70-80% of the width of the left or right block, the depth of the side pattern being any one of 10-15 mm.

8. A construction tyre according to claim 1, wherein the central portion of the left block is provided with a first group of steel sheets mutually parallel to the first longitudinal groove, the first group of steel sheets comprising three left block steel sheets arranged in a tower shape from left to right; the middle part of the right block is provided with a second steel sheet group which is parallel to the second longitudinal groove, and the second steel sheet group comprises three right block steel sheets which are arranged in a tower shape from right to left.

9. A construction tyre according to claim 8, wherein the lengths of the three left steel sheets arranged from left to right are set to 40mm, 25mm, 10mm in sequence, the widths are set to 4mm, 3mm, 2mm in sequence, and the depths are set to 3/4, 1/2, 1/4 of the depths of the transverse grooves in sequence; the lengths of the three right steel sheets arranged from right to left are sequentially 40mm, 25mm and 10mm, the widths are sequentially 4mm, 3mm and 2mm, and the depths are sequentially 3/4, 1/2 and 1/4 of the depths of the transverse grooves.

10. A construction tyre according to claim 1, wherein the middle part of the middle block is provided with a middle block steel sheet, the extending direction of the middle block steel sheet is parallel to the transverse boundary of the middle block, the middle block steel sheet comprises end parts at two ends and a middle part with two ends connected with the two end parts, the width of the end parts is 3mm, the width of the middle part is 5mm, the depth of the end parts is 1/3 of the depth of the transverse groove, and the depth of the middle part is 1/2 of the depth of the transverse groove.