Single-guide oil-saving tread pattern of driving wheel special for middle and long distance

Abstract

The invention relates to a driving wheel tire of a load-carrying vehicle, in particular to a driving wheel single-guide oil-saving tread pattern special for middle and long distance. A driving wheel single-guide oil-saving tread pattern special for middle and long distance comprises a zigzag central pattern groove located in a middle tread, and is characterized in that zigzag crown pattern grooves are evenly distributed on the outer side of the central pattern groove, and zigzag tread pattern grooves are evenly distributed on the outer sides of the two crown pattern grooves; the tread between the central pattern groove and the crown pattern groove is provided with a pattern rib A; compared with the prior art, the tire has the technical effects that the tire is provided with high-saturation and uniform small mahjong block pattern design, so that the mileage of the tire can be increased by 5%-8%, the rolling resistance performance of the tire can be improved by 8%-10%, and the driving force is stronger.

Description

Technical Field

[0001] The invention relates to a driving wheel tire for a load-carrying vehicle, in particular to a driving wheel single-guide fuel-saving tread pattern specially used for medium and long distances. Background Art

[0002] The design of the pattern has a huge impact on tire performance. It is an important part of ensuring driving safety and a very critical design project in the tire product development process.

[0003] As domestic end customers pay more attention to fuel saving, the market needs more fuel-efficient dual-drive special drive pattern products. The high-saturation small mahjong block drive products that need to be developed must have the characteristics of strong drive, high mileage, anti-stone clamping, high and low wear resistance of the tread blocks, anti-groove bottom cracking, and fuel saving.

[0004] Current status of products with current technical means: The current product patterns are outdated, stones are easily trapped in the shoulder area of ​​the product, high and low wear occurs in the tread blocks in the middle of the crown, the product mileage is insufficient, the fuel consumption is high, and the market competitiveness is poor. Summary of the invention

[0005] The technical problem to be solved by the present invention is: how to design a single-guide fuel-saving tread pattern for a driving wheel specially used for medium and long distances, which has the characteristics of strong driving and high mileage.

[0006] The technical solution of the present invention is specifically as follows: A single-guide fuel-saving tread pattern for a driving wheel specially used for medium and long distances, comprising a zigzag central groove located in the middle tread, characterized in that: a zigzag crown groove is distributed on the outer side of the central groove, and a zigzag tread groove is distributed on the outer side of the two crown grooves; the tread between the central groove and the crown groove is a pattern rib A, the tread between the crown groove and the tread groove is a pattern rib B, a plurality of steel sheet grooves are distributed on the pattern rib A and the pattern rib B, the steel sheet grooves include deep steel sheet grooves and shallow steel sheet grooves that are staggered; the tread on the outer side of the tread groove is a shoulder pattern rib, and a plurality of oblique grooves are arranged on the shoulder pattern rib; the tread pattern is a single-guide pattern formed by the pattern on the left side of the central axis through mirror symmetry and then translation of one unit to form a pattern on the right side; the tread pattern adopts an equal pitch design.

[0007] The oblique grooves 7 on the same side are arranged in parallel, and the deep steel sheet grooves 9 and the shallow steel sheet grooves 10 on the same side are arranged in parallel and equidistantly.

[0008] A connecting rib is fixed at the bottom of the inclined groove.

[0009] The number of pitches is 65-75.

[0010] The ratio of the width of the center groove to the crown groove and the shoulder groove is 1:0.5:2.34, the ratio of the depth of the center groove to the crown groove and the shoulder groove is 1:0.75:1, and the ratio of the width of the pattern rib A to the pattern rib B and the shoulder pattern rib is 1:1:1.42.

[0011] The width of the center groove 1 is 2.5-3.5mm, the depth is 18-22mm, and the bottom is designed with an arc; The width of crown groove 2 is 1-2mm, the depth is 9-11mm, and the bottom is designed with arc; The width of the shoulder groove 3 is 6-8mm, the angle is 8°-10°, the depth is 18-22mm, and the bottom is designed with an arc line; The deep steel sheet groove or the shallow steel sheet groove are both 2D (two-dimensional) linear designs, with an angle of 22°-28° with the horizontal direction, a width of 0.6-1mm, and a bottom arc design. The depth range of the deep steel sheet groove is 10-12mm, and the depth range of the shallow steel sheet groove is 2-4mm. The deep steel sheet groove or the shallow steel sheet groove is staggered along the circumferential direction; The angle between the oblique groove and the horizontal plane ranges from 22° to 28°, the width of the oblique groove ranges from 8mm to 10mm, and the angle of the oblique groove ranges from 8° to 12°; The width of the connecting rib is 68%-75% of the width of the oblique groove, and its depth is 50% of the depth of the oblique groove. The angle between the two side surfaces of the connecting rib is an acute angle, and the top edge C and the bottom edge C of the connecting rib are both arc designs.

[0012] The steel sheet grooves respectively connect the crown pattern grooves and the center pattern grooves or the tread pattern grooves, dividing the pattern ribs A and the pattern ribs B into mahjong block shapes.

[0013] The crown groove, the center groove and the tread groove are arranged in parallel, and each includes a plurality of V-shaped groove units connected in series. The V-shaped groove unit includes a first straight line segment of the groove unit and a second straight line segment of the groove unit. The connection between the first straight line segment of the unit and the second straight line segment of the groove unit is a bending point. The ends of the deep steel sheet groove or the shallow steel sheet groove are connected at the bending point of the crown groove or the center groove.

[0014] The deep steel sheet groove and the shallow steel sheet groove have the same direction, and both include a first straight line segment of the steel sheet groove, a second straight line segment of the steel sheet groove, and a third straight line segment of the steel sheet groove connected in series in sequence, and the first straight line segment of the steel sheet groove is parallel to and equal to the third straight line segment of the steel sheet groove; A bending point of the center groove is only connected to one steel groove. The "translation of one unit" in the above "the tread pattern is mirror-symmetrically formed by the pattern on the left side of the center axis and then translated by one unit" means "translation from one bending point to its adjacent bending point"; The tread groove comprises a plurality of L-shaped groove units connected in series, and the L-shaped groove unit comprises a fourth straight line segment of the groove unit and a fifth straight line segment of the groove unit.

[0015] The angle 904 between the fourth straight line segment of the groove unit and the fifth straight line segment of the groove unit is between 100° and 130°, the angle between the fourth straight line segment of the groove unit and the tire axis is between 70° and 89°, and the length of the second straight line segment of the steel sheet groove is less than half of the length of the first straight line segment of the steel sheet groove; The angle 205 between the first straight line segment of the unit and the second straight line segment of the groove unit is between 130° and 160°; The included angle 1001 between the deep steel sheet groove or the shallow steel sheet groove and the tire axis is between 20°-40°, and the included angle between the deep steel sheet groove or the shallow steel sheet groove and the center pattern groove is between 70°-100°; The angle between the first straight line segment of the steel sheet groove and the second straight line segment of the steel sheet groove is 130°-160°; The number of pitches is 65-75.

[0016] Compared with the prior art, the technical effect of the present invention is that the present invention is provided with a highly saturated, uniform small mahjong block pattern design, which can increase the mileage of the tire by 5%-8%, the rolling resistance performance of the tire by 8%-10%, and the driving force is also stronger. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a planar development schematic diagram of the present invention.

[0018] Figure 2 It is a schematic cross-sectional view of groove A.

[0019] Figure 3 It is a schematic cross-sectional view of groove B.

[0020] Figure 4 It is a schematic cross-sectional view of groove C.

[0021] Figure 5 It is a cross-sectional schematic diagram of the steel sheet groove.

[0022] Figure 6 It is a cross-sectional schematic diagram of the oblique groove on the shoulder.

[0023] Figure 7 It is a cross-sectional diagram of the connecting rib.

[0024] Figure 8 yes Figure 1 A local enlarged schematic diagram of the . DETAILED DESCRIPTION

[0025] The present invention will be described in detail below with reference to the accompanying drawings and specific embodiments thereof.

[0026] like Figure 1 A single-guide fuel-saving tread pattern for a driving wheel specially used for medium and long distances comprises a zigzag central groove 1 located in the middle tread, a zigzag crown groove 2 is distributed on the outer side of the central groove 1, and a zigzag tread groove 3 is distributed on the outer side of the two crown grooves 2.

[0027] The tread between the center groove 1 and the crown groove 2 is the pattern rib A4, and the tread between the crown groove 2 and the tread groove 3 is the pattern rib B5. Multiple steel sheet grooves are distributed on the pattern rib A4 and the pattern rib B5, and the steel sheet grooves include deep steel sheet grooves 9 and shallow steel sheet grooves 10 that are distributed alternately.

[0028] The tread outside the tread groove 3 is a shoulder pattern rib 6, and a plurality of oblique grooves 7 are arranged on the shoulder pattern rib 6, and the plurality of oblique grooves 7 are arranged at equal intervals.

[0029] The deep steel sheet grooves 9 and the shallow steel sheet grooves 10 on the same side are arranged in parallel and equidistantly, and the oblique grooves 7 on the same side are arranged in parallel and equidistantly.

[0030] In order to effectively prevent stone clamping and cracking of the groove bottom, a connecting rib 8 is fixed to the bottom of the inclined groove 7.

[0031] The tread pattern is a single-guide pattern formed by mirroring the pattern on the left side of the center axis and then translating one unit to form the pattern on the right side.

[0032] The tread pattern adopts an equal pitch design with a pitch number of 65-75.

[0033] In order to increase the driving force of the tire and make the wear more uniform, the steel sheet grooves respectively connect the crown groove 2 and the center groove 1 or the tread groove 3, dividing the pattern rib A4 and the pattern rib B5 into mahjong block shapes.

[0034] The pattern ribs are divided by deep steel grooves 9 or shallow steel grooves 10 that are staggered in depth and shallowness, which improves the overall rigidity of the pattern blocks and solves the problem of high and low wear of the crown pattern blocks. The saturation of the tread pattern is close to 82%, ensuring the tire's mileage.

[0035] The shoulder pattern ribs 6 are evenly divided by oblique grooves 7, and connecting ribs 8 are arranged at the bottom of the oblique grooves 7 to effectively prevent stone clamping and groove bottom cracking.

[0036] The ratio of the width of the center groove 1 to the crown groove 2 and the shoulder groove 3 is 1:0.5:2.34, the ratio of the depth of the center groove to the crown groove and the shoulder groove is 1:0.75:1, and the ratio of the width of the pattern rib A4 to the pattern rib B5 and the shoulder pattern rib 6 is 1:1:1.42.

[0037] The proportional design of the tread pattern groove and tread block width improves the tire's rolling resistance performance by 8%-10%; the saturation of the tread pattern is close to 82%, and the tire's mileage is increased by 5%-8%.

[0038] like Figure 2 As shown, the width W1 of the center groove 1 is 2.5-3.5 mm, the depth L1 is 18-22 mm, and the bottom C1 is designed in an arc line.

[0039] like Figure 3 As shown, the width W1 of the crown groove 2 is 1-2 mm, the depth L1 is 9-11 mm, and the bottom C1 is designed in an arc line.

[0040] like Figure 4 As shown, the width W1 of the shoulder groove 3 is 6-8 mm, the angle deg. is 8°-10°, the depth L2 is 18-22 mm, and the bottom C1 is designed in an arc line.

[0041] like Figure 5 As shown, the deep steel sheet groove 9 or the shallow steel sheet groove 10 are both 2D (two-dimensional) linear designs, with an angle of 22°-28° with the horizontal direction, a width W1 of 0.6-1mm, and an arc design at the bottom C1. The depth range L1 of the deep steel sheet groove 9 is 10-12mm, and the depth range L1 of the shallow steel sheet groove 10 is 2-4mm. The deep steel sheet grooves 9 or the shallow steel sheet grooves 10 are staggered in the circumferential direction, which improves the overall rigidity of the pattern block while enabling the pattern block to resist high and low wear in the front and rear directions.

[0042] like Figure 6 As shown, the tire shoulder adopts an open shoulder design as a whole, the angle of the oblique groove 7 and the horizontal plane ranges from 22° to 28°, the width range W1 of the oblique groove 7 is 8mm-10mm, and the angle deg. of the oblique groove 7 ranges from 8° to 12°.

[0043] like Figure 7 As shown, the width W1 of the connecting rib 8 is 68%-75% of the width of the oblique groove 7, and its depth is 50% of the depth L2 of the oblique groove 7. The angle deg. between the two side surfaces of the connecting rib 8 is an acute angle, and the top edge C1 and the bottom edge C2 of the connecting rib 8 are both arc-shaped. The design of the oblique groove 7 and the design angle of the pattern groove can make the pattern have the performance of resisting groove bottom cracking and preventing stone clamping.

[0044] like Figure 8The crown groove 2 is arranged in parallel with the center groove 1 and the tread groove 3, and each includes a plurality of V-shaped groove units 201 connected in series. The V-shaped groove unit 201 includes a first straight segment 202 of the groove unit and a second straight segment 203 of the groove unit. The connection between the first straight segment 202 of the unit and the second straight segment 203 of the groove unit is a bending point 204. The angle 205 between the first straight segment 202 of the unit and the second straight segment 203 of the groove unit is between 130° and 160°.

[0045] like Figure 8 The included angle 1001 between the deep steel sheet groove 9 or the shallow steel sheet groove 10 and the tire axis is between 20°-40°, and the included angle 101 between the deep steel sheet groove 9 or the shallow steel sheet groove 10 and the center pattern groove 1 is between 70°-100°.

[0046] like Figure 8 The ends of the deep steel sheet groove 9 or the shallow steel sheet groove 10 are connected to the bending point 204 of the crown groove 2 or the center groove 1.

[0047] like Figure 8 The deep steel sheet groove 9 or the shallow steel sheet groove 10 have the same direction, and both include a first straight line segment 901, a second straight line segment 903, and a third straight line segment 902 of the steel sheet groove connected in series in sequence. The first straight line segment 901 of the steel sheet groove is parallel to and equal to the third straight line segment 902 of the steel sheet groove. The length of the second straight line segment 903 of the steel sheet groove is less than half of the length of the first straight line segment 901 of the steel sheet groove. The angle 904 between the first straight line segment 901 of the steel sheet groove and the second straight line segment 903 of the steel sheet groove is between 130° and 160°.

[0048] like Figure 8 The tread groove 3 includes a plurality of L-shaped groove units 301 connected in series, the L-shaped groove unit 301 includes a fourth straight line segment 302 of the groove unit and a fifth straight line segment 303 of the groove unit, an angle 904 between the fourth straight line segment 302 of the groove unit and the fifth straight line segment 303 of the groove unit is between 100° and 130°, and an angle 304 between the fourth straight line segment 302 of the groove unit and the tire axis is between 70° and 89°.

[0049] A bending point 204 of the central groove 1 is only connected to one steel sheet groove. The "translation of one unit" in the previous text "the tread pattern is mirror-symmetrically formed by the pattern on the left side of the central axis and then translated by one unit" means "translation from one bending point 204 to its adjacent bending point 204".

[0050] The design of the fine grooves of the tread pattern blocks and the design of the pattern groove parameters and positions can make the tire's driving force stronger and the wear more uniform.

[0051] The highly saturated and uniform small mahjong block pattern design can increase the tire's mileage by 5%-8%; the design of the oblique grooves on the shoulder and the design angle of the pattern grooves can make the pattern resist groove bottom cracking and stone clamping.

[0052] The present invention provides a single-guide tire pattern for driving wheels, which enables the tire to be used on medium and long-distance national roads, and has the characteristics of strong driving, high mileage, resistance to front and rear high and low wear of pattern blocks, resistance to groove bottom cracking, prevention of stone clamping, fuel saving, etc. The tortuosity of the pattern is used to ensure the driveability of the pattern; the mileage is increased by 5%-8% through the design of the ratio of the pattern groove to the pattern block; the depth and angle design of the sipes on the center pattern block and the crown pattern block can make the pattern block resistant to front and rear high and low wear; the design of the shoulder oblique groove and the design angle of the pattern groove wall can make the pattern have the performance of resisting groove bottom cracking and preventing stone clamping. In addition, the overall design of the tread pattern improves the rolling resistance performance of the tire by 8%-10%.

[0053] The tread pattern is a single-guide pattern with an equal pitch design and a pitch number of 65-75.

[0054] The present invention is described in detail below in conjunction with specific embodiments. It is necessary to point out that this embodiment is only used to further illustrate the present invention and cannot be understood as limiting the scope of protection of the present invention. Technical personnel skilled in the art can make some non-essential improvements and adjustments based on the contents of the present invention, which all fall within the scope of protection of the present invention.

[0055] For other contents, please refer to the prior art.

[0056] The above description is only the preferred implementation mode of the present invention. It should be pointed out that for those skilled in the art, several changes and improvements can be made without departing from the overall concept of the present invention, which should also be regarded as the protection scope of the present invention.

Claims

1. A single-guide fuel-saving tread pattern for a driving wheel for medium and long distance use, comprising a zigzag central tread groove (1) located in the middle of the tread, characterized in that: A zigzag crown groove (2) is distributed on the outer side of the center groove (1), and a zigzag tread groove (3) is distributed on the outer side of the two crown grooves (2); The tread between the center pattern groove (1) and the crown pattern groove (2) is a pattern rib A (4), and the tread between the crown pattern groove (2) and the tread pattern groove (3) is a pattern rib B (5). The pattern rib A (4) and the pattern rib B (5) are both provided with a plurality of steel sheet grooves, and the steel sheet grooves include deep steel sheet grooves (9) and shallow steel sheet grooves (10) that are alternately distributed. The tread on the outside of the tread groove (3) is a shoulder pattern rib (6), and a plurality of oblique grooves (7) are provided on the shoulder pattern rib (6); The tread pattern is formed by mirroring the pattern on the left side of the center axis and then translating one unit to form the pattern on the right side, which is a single-guide pattern. The tread pattern adopts an equal pitch design.

2. The single-guide fuel-saving tread pattern for driving wheels for medium and long distances as claimed in claim 1, characterized in that: The oblique grooves (7) on the same side are arranged in parallel, and the deep steel sheet grooves (9) and the shallow steel sheet grooves (10) on the same side are arranged in parallel and equidistantly.

3. The single-guide fuel-saving tread pattern for driving wheels for medium and long distance travel as claimed in claim 1, characterized in that: A connecting rib (8) is fixed to the bottom of the inclined groove (7).

4. The single-guide fuel-saving tread pattern for driving wheels for medium and long distances as claimed in claim 1, characterized in that: The number of pitches is 65-75.

5. The single-guide fuel-saving tread pattern for driving wheels for medium and long distances as claimed in claim 1, characterized in that: The ratio of the width of the center groove (1) to the crown groove (2) and the shoulder groove (3) is 1:0.5:2.34, the ratio of the depth of the center groove to the crown groove and the shoulder groove is 1:0.75:1, and the ratio of the width of the pattern rib A (4) to the pattern rib B (5) and the shoulder pattern rib (6) is 1:1:1.

42.

6. The single-guide fuel-saving tread pattern for driving wheels for medium and long distances as claimed in claim 5, characterized in that: The width of the center groove (1) is 2.5-3.5 mm, the depth is 18-22 mm, and the bottom is designed with an arc; The width of the crown groove (2) is 1-2 mm, the depth is 9-11 mm, and the bottom is designed with an arc line; The width of the shoulder groove (3) is 6-8 mm, the angle is 8°-10°, the depth is 18-22 mm, and the bottom is designed with an arc line; The deep steel sheet groove (9) or the shallow steel sheet groove (10) are both 2D linearly designed, with an angle of 22°-28° with the horizontal direction, a width of 0.6-1 mm, and a bottom arc design. The depth range of the deep steel sheet groove (9) is 10-12 mm, and the depth range of the shallow steel sheet groove (10) is 2-4 mm. The deep steel sheet groove (9) or the shallow steel sheet groove (10) are staggered along the circumferential direction; The angle between the oblique groove (7) and the horizontal plane is in the range of 22°-28°, the width of the oblique groove (7) is in the range of 8mm-10mm, and the angle of the oblique groove (7) is in the range of 8°-12°; The width of the connecting rib (8) is 68%-75% of the width of the oblique groove (7), and its depth is 50% of the depth of the oblique groove (7). The angle between the two side surfaces of the connecting rib (8) is an acute angle, and the top edge and the bottom edge of the connecting rib (8) are both arc-shaped.

7. The single-guide fuel-saving tread pattern for driving wheels for medium and long distance travel as claimed in claim 2, characterized in that: The steel sheet grooves respectively connect the crown pattern groove 2 and the center pattern groove 1 or the tread pattern groove 3, and divide the pattern rib A4 and the pattern rib B5 into mahjong block shapes.

8. The single-guide fuel-saving tread pattern for driving wheels for medium and long distances as claimed in claim 7, characterized in that: The crown groove (2) and the center groove (1) are arranged in parallel with the tread groove (3), and each comprises a plurality of V-shaped groove units (201) connected in series. The V-shaped groove unit (201) comprises a first straight segment (202) of the groove unit and a second straight segment (203) of the groove unit. The connection between the first straight segment (202) and the second straight segment (203) of the groove unit is a bending point (204). The ends of the deep steel sheet groove (9) or the shallow steel sheet groove (10) are connected to the bending point (204) of the crown groove (2) or the center groove (1).

9. The single-guide fuel-saving tread pattern for driving wheels for medium and long distances as claimed in claim 8, characterized in that: The deep steel sheet groove (9) or the shallow steel sheet groove (10) have the same direction, and both include a first straight line segment (901), a second straight line segment (903), and a third straight line segment (902) of the steel sheet groove which are connected in series in sequence, and the first straight line segment (901) of the steel sheet groove is parallel to and equal to the third straight line segment (902) of the steel sheet groove; A bending point (204) of the central tread groove (1) is connected to only one steel sheet groove. The "translation of one unit" in the above "the tread pattern is mirror-symmetrically formed by the pattern on the left side of the central axis and then translated by one unit" means "translation from one bending point (204) to its adjacent bending point (204)". The tread groove (3) comprises a plurality of L-shaped groove units (301) connected in series, and the L-shaped groove unit (301) comprises a fourth straight line segment (302) of the groove unit and a fifth straight line segment (303) of the groove unit.

10. The single-guide fuel-saving tread pattern for driving wheels for medium and long distances as claimed in claim 1, characterized in that: The included angle (904) between the fourth straight line segment (302) of the groove unit and the fifth straight line segment (303) of the groove unit is between 100° and 130°, the included angle (304) between the fourth straight line segment (302) of the groove unit and the tire axis is between 70° and 89°, and the length of the second straight line segment (903) of the steel sheet groove is less than half the length of the first straight line segment (901) of the steel sheet groove; The angle (205) between the first straight line segment (202) of the unit and the second straight line segment (203) of the groove unit is between 130° and 160°; The included angle (1001) between the deep steel sheet groove (9) or the shallow steel sheet groove (10) and the tire axis is between 20° and 40°, and the included angle (101) between the deep steel sheet groove (9) or the shallow steel sheet groove (10) and the center tread groove (1) is between 70° and 100°; The included angle (904) between the first straight line segment (901) of the steel sheet groove and the second straight line segment (903) of the steel sheet groove is between 130° and 160°.

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