Wet clutch friction plate mechanism of power gear shifting oil groove

Abstract

The utility model discloses a wet clutch friction plate mechanism of a power gear shifting oil groove, and relates to the technical field of friction plates. The friction plate comprises an annular core plate, a plurality of friction assemblies distributed in an annular array are arranged on the outer side of the annular core plate, and each friction assembly comprises a first friction strip, a second friction strip, a third friction strip, a fourth friction strip, a fifth friction strip and a sixth friction strip. Through the first oblique line groove, the second oblique line groove, the third oblique line groove and the fourth oblique line groove which are distributed at intervals, the first triangular groove and the second triangular groove are matched with the annular groove, so that the shearing resistance of lubricating oil between the annular friction plates can be reduced, and the dragging torque can be conveniently reduced; by means of the first oblique straight-through groove, the second oblique straight-through groove, the third oblique straight-through groove, the fourth oblique straight-through groove and the first straight-through groove, the contact area with the friction plate can be increased, the standing time of lubricating oil is prolonged, heat on the surface of the friction plate is better taken away, and therefore the heat dissipation performance of the friction plate is better improved.

Description

Technical Field

[0001] This utility model relates to the field of friction plate technology, specifically to a friction plate mechanism for a power shift oil groove wet clutch. Background Technology

[0002] In recent years, the demand for low fuel consumption in automobiles has been increasing. In automatic transmissions, to reduce power loss when the clutch is not engaged, it is also necessary to reduce the drag torque between the friction plates and steel plates. However, in order to improve shift response by improving power performance while simultaneously improving fuel efficiency, the following tendencies exist: the gap between the friction plates and steel plates is smaller than before; the drag torque generated by the oil film in the middle during idling is larger; and the heat dissipation performance of the friction plates is not high and still needs to be improved. To address these problems, the inventors have proposed a power shift oil groove wet clutch friction plate mechanism to solve these issues. Utility Model Content

[0003] To address the issues of increased drag torque and poor heat dissipation, this invention aims to provide a power shift oil groove wet clutch friction plate mechanism.

[0004] To solve the above-mentioned technical problems, this utility model adopts the following technical solution: a power shift oil groove wet clutch friction plate mechanism, comprising an annular core plate, and a plurality of friction components arranged in a ring array on the outer side of the annular core plate. Each friction component includes a first friction strip, a second friction strip, a third friction strip, a fourth friction strip, a fifth friction strip, and a sixth friction strip. The first, second, third, fourth, fifth, and sixth friction strips are radially arranged on the annular core plate. The second, third, and sixth friction strips are in contact with the first and fourth friction strips. An annular groove is formed between the first and fifth friction strips. The inner side of the first friction strip is provided with a first oblique groove, the inner side of the second friction strip is provided with a second oblique groove, the inner side of the third friction strip is provided with a first triangular groove, the inner side of the fourth friction strip is provided with a second triangular groove, the inner side of the fifth friction strip is provided with a third oblique groove, and the inner side of the sixth friction strip is provided with a fourth oblique groove. The first oblique groove, the second oblique groove, the third oblique groove, the fourth oblique groove, the first triangular groove, the second triangular groove, and the annular groove are arranged in a way that can reduce the shear resistance of the lubricating oil between the annular friction strips, thus making it easier to reduce the drag torque.

[0005] Preferably, a first oblique through groove is formed between the first and fourth friction strips, a second oblique through groove is formed between the second and third friction strips, a third oblique through groove is formed between the third and sixth friction strips, a fourth oblique through groove is formed between the fourth and fifth friction strips, and a first through groove is formed between the first and second friction strips and the fifth and sixth friction strips adjacent in the counterclockwise direction. The first, second, third, fourth, and first oblique through grooves can increase the contact area with the friction plate, prolong the residence time of the lubricating oil, and better remove the heat from the surface of the friction plate, thereby improving the heat dissipation of the friction plate.

[0006] Preferably, the inner circle of the annular core plate is provided with splines, which facilitates the installation of the annular core plate.

[0007] Preferably, the annular core plate has a first surface and a second surface opposite to the first surface. The first friction strip, the second friction strip, the third friction strip, the fourth friction strip, the fifth friction strip and the sixth friction strip are spaced apart and uniformly fixed on the first surface and the second surface of the annular core plate along the radial direction of the annular core plate. This can improve the wear resistance and stability of the annular core plate.

[0008] Preferably, the dimensions of the first, second, third, and fourth oblique grooves range from 1 to 2.0 mm, and the dimensions of the first, second, third, fourth, and first straight grooves range from 0.5 to 2.0 mm. By controlling the dimensions of the first, second, third, and fourth oblique grooves, the shear resistance of the lubricating oil between the annular friction plates can be reduced. By controlling the dimensions of the first, second, third, and fourth oblique grooves, the contact area with the friction plates can be increased to better remove heat from the surface of the friction plates. By controlling the dimensions of the first straight groove, the flow of lubricating oil can be ensured to remain unaffected.

[0009] Preferably, the included angle of the inner side of the third friction strip is A, and the angle of A is 20° to 60°. The included angle of the inner side of the fourth friction strip is B, and the angle of B is 40° to 80°. By controlling the range of angles, it is convenient to ensure the control of the residence time of the lubricating oil between the friction discs.

[0010] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0011] 1. The first, second, third, and fourth oblique grooves, the first and second triangular grooves, and the annular grooves, distributed at intervals, can reduce the shear resistance of the lubricating oil between the annular friction plates, thus facilitating the reduction of drag torque.

[0012] 2. The first, second, third, fourth, and first straight through grooves can increase the contact area with the friction plate, extend the residence time of the lubricating oil, and better remove the heat from the surface of the friction plate, thereby improving the heat dissipation of the friction plate. Attached Figure Description

[0013] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0014] Figure 1 This is a schematic diagram of the structure of this utility model.

[0015] In the diagram: 1. Annular core plate; 2. First friction strip; 3. Second friction strip; 4. Third friction strip; 5. Fourth friction strip; 6. Fifth friction strip; 7. Sixth friction strip; 8. Annular groove; 9. First oblique groove; 10. Second oblique groove; 11. First triangular groove; 12. Second triangular groove; 13. Fourth oblique groove; 14. Third oblique groove; 15. First oblique straight groove; 16. Second oblique straight groove; 17. Third oblique straight groove; 18. Fourth oblique straight groove; 19. First straight groove; 20. Spline; 21. Friction assembly. Detailed Implementation

[0016] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0017] Example: Figure 1As shown, this utility model provides a technical solution: a power shift oil groove wet clutch friction plate mechanism, including an annular core plate 1, and a plurality of friction components 21 arranged in a ring array on the outer side of the annular core plate 1. Each friction component 21 includes a first friction strip 2, a second friction strip 3, a third friction strip 4, a fourth friction strip 5, a fifth friction strip 6, and a sixth friction strip 7. The first friction strip 2, second friction strip 3, third friction strip 4, fourth friction strip 5, fifth friction strip 6, and sixth friction strip 7 are radially arranged on the annular core plate 1. The second friction strip 3, third friction strip 4, sixth friction strip 7 and the first friction strip 2, fourth friction strip 5, fifth friction strip 6... An annular groove 8 is formed between the friction strips. The inner side of the first friction strip 2 is provided with a first oblique groove 9, the inner side of the second friction strip 3 is provided with a second oblique groove 10, the inner side of the third friction strip 4 is provided with a first triangular groove 11, the inner side of the fourth friction strip 5 is provided with a second triangular groove 12, the inner side of the fifth friction strip 6 is provided with a third oblique groove 14, and the inner side of the sixth friction strip 7 is provided with a fourth oblique groove 13. The first oblique groove 9, the second oblique groove 10, the third oblique groove 14, the fourth oblique groove 13, the first triangular groove 11, and the second triangular groove 12, which are distributed at intervals, cooperate with the annular groove 8 to reduce the shear resistance of the lubricating oil between the annular friction strips, thus facilitating the reduction of drag torque.

[0018] A first oblique straight groove 15 is formed between the first friction strip 2 and the fourth friction strip 5; a second oblique straight groove 16 is formed between the second friction strip 3 and the third friction strip 4; a third oblique straight groove 17 is formed between the third friction strip 4 and the sixth friction strip 7; a fourth oblique straight groove 18 is formed between the fourth friction strip 5 and the fifth friction strip 6; and a first straight groove 19 is formed between the first friction strip 2, the second friction strip 3, and the fifth friction strip 6 and the sixth friction strip 7, which are adjacent in the counterclockwise direction.

[0019] By adopting the above technical solution, the contact area with the friction plate can be increased through the first oblique straight through groove 15, the second oblique straight through groove 16, the third oblique straight through groove 17, the fourth oblique straight through groove 18 and the first straight through groove 19, and the residence time of the lubricating oil can be extended to better remove the heat from the surface of the friction plate, thereby improving the heat dissipation of the friction plate.

[0020] The inner circle of the annular core plate 1 is provided with splines 20.

[0021] By adopting the above technical solution, the annular core plate 1 can be easily installed via the spline 20.

[0022] The annular core plate 1 has a first surface and a second surface opposite to the first surface. The first friction strip 2, the second friction strip 3, the third friction strip 4, the fourth friction strip 5, the fifth friction strip 6 and the sixth friction strip 7 are spaced apart and uniformly fixed on the first surface and the second surface of the annular core plate 1 along the radial direction of the annular core plate 1.

[0023] By adopting the above technical solution, the wear resistance and stability of the annular core plate 1 can be improved.

[0024] The dimensions of the first oblique groove 9, the second oblique groove 10, the third oblique groove 14 and the fourth oblique groove 13 range from 1 to 2.0 mm, and the dimensions of the first oblique straight groove 15, the second oblique straight groove 16, the third oblique straight groove 17, the fourth oblique straight groove 18 and the first straight groove 19 range from 0.5 to 2.0 mm.

[0025] By adopting the above technical solution, the shear resistance of the lubricating oil between the annular friction plates can be reduced by controlling the dimensions of the first oblique groove 9, the second oblique groove 10, the third oblique groove 14 and the fourth oblique groove 13. By controlling the dimensions of the first oblique straight groove 15, the second oblique straight groove 16, the third oblique straight groove 17 and the fourth oblique straight groove 18, the contact area with the friction plates can be increased to better remove the heat from the surface of the friction plates. By controlling the dimensions of the first straight groove 19, the flow of lubricating oil can be ensured to be unaffected.

[0026] The inner included angle of the third friction strip 4 is A, and the angle of A is 20° to 60°. The inner included angle of the fourth friction strip 5 is B, and the angle of B is 40° to 80°.

[0027] By adopting the above technical solution, the residence time of lubricating oil between the friction discs can be easily controlled by controlling the angle size range.

[0028] Working principle: The first oblique groove 9, the second oblique groove 10, the third oblique groove 14 and the fourth oblique groove 13, the first triangular groove 11 and the second triangular groove 12, in conjunction with the annular groove 8, can reduce the shear resistance of the lubricating oil between the annular friction plates, thus facilitating the reduction of drag torque. The first oblique straight groove 15, the second oblique straight groove 16, the third oblique straight groove 17, the fourth oblique straight groove 18 and the first straight groove 19 increase the contact area with the friction plates, prolong the residence time of the lubricating oil, and better remove the heat from the surface of the friction plates, thereby improving the heat dissipation of the friction plates. The first straight groove 19 ensures that the flow of lubricating oil is not affected.

[0029] Obviously, those skilled in the art can make various modifications and variations to this utility model without departing from its spirit and scope. Therefore, if these modifications and variations fall within the scope of the claims of this utility model and their equivalents, this utility model also intends to include these modifications and variations.

Claims

1. A power shift oil sump wet clutch plate mechanism comprising a ring core plate (1), characterized in that: The outer side of the annular core plate (1) has several friction components (21) arranged in a ring array. Each friction component (21) includes a first friction strip (2), a second friction strip (3), a third friction strip (4), a fourth friction strip (5), a fifth friction strip (6), and a sixth friction strip (7). The first friction strip (2), the second friction strip (3), the third friction strip (4), the fourth friction strip (5), the fifth friction strip (6), and the sixth friction strip (7) are radially arranged on the annular core plate (1). An annular groove (8) is formed between the six friction strips (7) and the first friction strip (2), the fourth friction strip (5), and the fifth friction strip (6). The first friction strip (2) has a first oblique groove (9) on its inner side, the second friction strip (3) has a second oblique groove (10) on its inner side, the third friction strip (4) has a first triangular groove (11) on its inner side, the fourth friction strip (5) has a second triangular groove (12) on its inner side, the fifth friction strip (6) has a third oblique groove (14) on its inner side, and the sixth friction strip (7) has a fourth oblique groove (13) on its inner side.

2. A power shift sump wet clutch pack mechanism as in claim 1, wherein, A first oblique through groove (15) is formed between the first friction strip (2) and the fourth friction strip (5), a second oblique through groove (16) is formed between the second friction strip (3) and the third friction strip (4), a third oblique through groove (17) is formed between the third friction strip (4) and the sixth friction strip (7), a fourth oblique through groove (18) is formed between the fourth friction strip (5) and the fifth friction strip (6), and a first through groove (19) is formed between the first friction strip (2), the second friction strip (3), and the fifth friction strip (6) and the sixth friction strip (7) adjacent in the counterclockwise direction.

3. A power shift sump wet clutch pack mechanism as described in claim 1 wherein, The inner circle of the annular core plate (1) is provided with splines (20).

4. A power shift sump wet clutch pack mechanism as in claim 1 further characterized by, The annular core plate (1) has a first surface and a second surface opposite to the first surface. The first friction strip (2), the second friction strip (3), the third friction strip (4), the fourth friction strip (5), the fifth friction strip (6) and the sixth friction strip (7) are spaced apart and are uniformly fixed on the first surface and the second surface of the annular core plate (1) along the radial direction of the annular core plate (1).

5. A power shift sump wet clutch pack mechanism as in claim 2, wherein, The size range of the first oblique groove (9), the second oblique groove (10), the third oblique groove (14) and the fourth oblique groove (13) is 1~2.0mm, and the size range of the first oblique straight groove (15), the second oblique straight groove (16), the third oblique straight groove (17), the fourth oblique straight groove (18) and the first straight groove (19) is 0.5~2.0mm.

6. A power shift sump wet clutch pack mechanism as described in claim 1 wherein, The inner included angle of the third friction strip (4) is A, and the angle of A is 20°~60°. The inner included angle of the fourth friction strip (5) is B, and the angle of B is 40°~80°.

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