A driven disc assembly

Abstract

The present invention discloses a driven disc assembly, comprising a split corrugated plate assembly, a split friction plate, a split corrugated plate, a rivet, an inner ring, a disc hub, and a damping spring. The split corrugated plate assembly comprises a split friction plate, a split corrugated plate, a rivet, and an inner ring, the inner ring being provided with a window and an assembly hole. The inner ring is connected to the disc hub via the assembly hole, the split corrugated plate is connected to the inner ring via a rivet, and the split friction plate is connected to the split corrugated plate via a rivet. The present invention utilizes a split corrugated plate and a split friction plate for interchangeability, thereby achieving improved heat dissipation for the driven disc assembly, preventing the friction plate from burning, and increasing the overall service life.

Description

Technical Field

[0001] The present invention relates to the technical field of automobile clutches, and in particular to a driven disc assembly. Background Art

[0002] The inner ring of a car's clutch is another component of the vehicle's clutch. It transmits engine torque to the transmission through friction, reducing driveline vibration and shock, and completing the clutch engagement and disengagement process. The inner ring of a car's clutch is an essential and consumable component in manual transmission vehicles. During use, the driven plate assembly transmits engine torque to the transmission through friction. Currently, most clutch driven plate assemblies on the market use friction plates made of organic friction materials. This can easily lead to friction plate burnout when the vehicle's starting energy is too high or when it is overloaded. This is also affected by the material and manufacturing of the friction plates.

[0003] In the existing technology, the inner ring of the clutch has low strength, which causes the inner ring to be easily damaged by collision when the clutch is hit, thereby shortening its service life; on the other hand, the wear resistance of the existing clutch inner ring is poor, and it is easily damaged by friction due to long-term friction during use, thereby shortening its service life.

[0004] Chinese patent CN201811374803.8 discloses "a clutch driven disc assembly with a reinforced protective device", which includes a large steel plate of the clutch driven disc, a clamping plate and a clutch reinforcement plate. The clutch reinforcement plate is arranged on the large steel plate of the clutch driven disc assembly close to the engine flywheel and is fixed to the large steel plate of the clutch driven disc assembly and the clamping plate by rivets. Based on the ordinary clutch driven disc assembly, this technology adds a clutch reinforcement plate on the side close to the engine flywheel, and fixes the large steel plate of the clutch driven disc assembly and the clutch reinforcement plate together by riveting, thereby strengthening the axial stiffness and strength of the clutch driven disc assembly, reducing the failure rate caused by stiffness and strength, and improving the wear resistance of the clutch driven disc assembly. However, when used, the traditional split corrugated plate is still used, which will lead to poor heat dissipation of the driven disc assembly, and then cause the friction plate to burn. Summary of the Invention

[0005] In view of the above-mentioned deficiencies, the present invention provides a driven disc assembly with good heat dissipation effect, friction plates that are not prone to burning, and a long service life.

[0006] To achieve the above object, the technical solution of the present invention is as follows:

[0007] A driven disc assembly includes a split corrugated plate assembly, a split friction plate, a split corrugated plate, a rivet, an inner ring, a disc hub, and a damping spring; the split corrugated plate assembly includes a split friction plate, a split corrugated plate, a rivet, and an inner ring, and the inner ring is provided with a window and an assembly hole; the inner ring is connected to the disc hub through the assembly hole, the split corrugated plate is connected to the inner ring by rivets, and the split friction plate is connected to the split corrugated plate by rivets.

[0008] As a further technical improvement, the split corrugated plate has a fan-shaped structure, with a surface divided into a flat surface and an arcuate transition surface. A straight seam is located in the middle of the upper portion, and two notches are located on the outer periphery. Three arcuate transition surfaces of varying lengths are staggered on either side of the straight seam. The uppermost arcuate transition surface connects to the straight seam, and a short straight seam connects two adjacent arcuate transition surfaces at the lower end. The upper and lower ends of the arcuate transition surface intersect with the flat surface, and the planes where they intersect have a height difference. This split corrugated plate structure provides better heat dissipation, improves the smoothness of the driven disc assembly's engagement, and reduces vehicle shuddering when starting.

[0009] As a further technical improvement, the aforementioned split corrugated sheet features a pair of symmetrically inclined transition surfaces along the notch near the central curved transition surface. One transition surface connects to the central straight seam, while the other extends to the edge. Both sides of the transition surface intersect with planes, with a height difference between the two intersecting planes. The center of the lowest curved transition surface also connects to a semicircular seam that indents toward the inner edge. This further optimizes the structure of the split corrugated sheet, ensuring strength while maximizing heat dissipation and extending its service life.

[0010] As a further technical improvement, the above-mentioned split corrugated sheet is provided with rivet holes and connection holes; the connection holes are provided at the inner edge; the rivet holes are divided into two rows, the upper row is provided with four rivet holes, and the lower row is provided with two rivet holes, and the rivet holes in the upper and lower rows are symmetrically distributed on both sides of the straight seam; there are four connection holes.

[0011] During installation, multiple groups of split corrugated sheets are evenly distributed along the circumference of the inner ring, and rivets are used to rivet the split corrugated sheets to the inner ring through the connection holes. Each group of split corrugated sheets is riveted to the inner ring with four rivets through the connection holes, ensuring the riveting strength and preventing the split corrugated sheets from falling off the inner ring. Split friction plates are riveted to both sides of each group of split corrugated sheets. Each group of split friction plates and split corrugated sheets are riveted diagonally, using two rivets on the rivet hole in the upper right corner and one rivet on the rivet hole in the lower left corner. The unused rivet holes in the upper left and lower right corners of the same surface are left as holes for connection of the split friction plates on the opposite side. The split friction plates on both sides of each group of split corrugated sheets are symmetrical about the center. At this time, when the split friction plates are squeezed, each group of split corrugated sheets has the same deformation, improving the mechanical properties during use.

[0012] As a further technical improvement, the inner ring described above adopts a double-piece structure. The double-piece structure facilitates the stamping and forming of the inner ring, which can save costs while ensuring strength.

[0013] As a further technical improvement, the aforementioned split friction plates are now made of split ceramic friction plates. These plates have a high melting point, high hardness, high wear resistance, and oxidation resistance. Compared to split friction plates made of traditional materials, they offer superior mechanical properties and can significantly improve the wear resistance of the device. Their high melting point ensures safe and reliable use, preventing plate burnout.

[0014] As a further technical improvement, the two sides of the split corrugated sheet are riveted to the vibration damping disc by rivets. The vibration damping discs on both sides further reduce vibration when in use, thereby enhancing the vibration reduction effect.

[0015] When in use, the split corrugated plate assembly is installed on the disc hub, and the assembled driven disc assembly is installed on one shaft of the transmission. The split friction plate in the inner ring receives the torque transmitted by the engine and transfers the torque to the inner ring. Power is transmitted through the inner ring, and then the inner ring rotates, which compresses the shock absorber spring and transmits the torque to the shock absorber spring and the disc hub in turn, thereby realizing power transmission of the inner ring.

[0016] Compared with the prior art, the present invention has the following advantages and beneficial effects:

[0017] 1. The damping spring structure of the present invention can effectively buffer and attenuate the torsional impact of the transmission system, making the car start and shift smoothly; the split corrugated plate and split friction plate structure reserve sufficient space for thermal deformation and heat dissipation, so that the inner ring has a good heat dissipation effect and the friction plate is not easy to burn.

[0018] 2. The present invention designs the structure of the split corrugated plate so that the split corrugated plate has a good heat dissipation effect during use, further reducing the phenomenon of the friction plate burning during use.

[0019] 3. The inner ring of the present invention adopts a double-piece structure, which is convenient for stamping and forming; the split friction plate adopts a split ceramic friction plate structure, which significantly improves the service life of the driven disc assembly and the torque transmission capacity. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a main schematic view of a driven disc assembly of the present invention.

[0021] Figure 2 It is a schematic cross-sectional view of a driven disc assembly of the present invention.

[0022] Figure 3 It is a schematic diagram of an assembly of a driven disc as a whole composed of separate corrugated plates according to the present invention.

[0023] Figure 4 It is a schematic diagram of a split corrugated plate of a driven disc assembly of the present invention.

[0024] Figure 5 It is a schematic diagram of a split friction plate of a driven disc assembly of the present invention.

[0025] Figure 6 It is a schematic diagram of a driven disc of the present invention comprising a split corrugated plate and a split ceramic friction plate riveted to a damping disc.

[0026] Figure ID:

[0027] Split friction plate-1, split corrugated plate-2, rivet-3, inner ring-4, disc hub-5, vibration damping spring-6, straight seam-7, arc-shaped transition surface-8, short straight seam-9, transition surface-10, semicircular arc seam-11, rivet hole-12, connecting hole-13, vibration damping plate-14, notch-15, flat surface-16. DETAILED DESCRIPTION

[0028] The present invention will be further described below with reference to the accompanying drawings.

[0029] Example 1:

[0030] A driven disc assembly includes a split corrugated plate assembly, a split friction plate 1, a split corrugated plate 2, a rivet 3, an inner ring 4, a disc hub 5, and a damping spring 6; the split corrugated plate assembly includes a split friction plate 1, a split corrugated plate 2, a rivet 3, and an inner ring 4, and the inner ring is provided with a window and an assembly hole; the inner ring 4 is connected to the disc hub 5 through the assembly hole, and a damping spring 6 is installed at the window; the split corrugated plate 2 is connected to the inner ring 4 by a rivet 3, and the split friction plate 1 is connected to the split corrugated plate 2 by a rivet 3.

[0031] When in use, the split corrugated plate assembly is installed on the disc hub 5, and the assembled driven disc assembly is installed on a shaft of the transmission. The split friction plate 1 in the inner ring receives the torque transmitted by the engine and transmits the torque to the inner ring 4. Power is transmitted through the inner ring 4, and then the inner ring 4 rotates. At this time, the shock absorber spring 6 is compressed, and the torque is transmitted to the shock absorber spring 6 and the disc hub 5 in sequence, realizing power transmission of the inner ring 4.

[0032] Example 2:

[0033] The difference from Example 1 is that

[0034] The split corrugated sheet 2 is a fan-shaped structure, and its surface is divided into a plane 16 and an arc-shaped transition surface 8. A straight seam 7 is provided in the middle of the upper part, and two notches 15 are provided on the outer periphery; three arc-shaped transition surfaces 8 of different lengths are staggered on the surface on both sides of the straight seam 7, among which the uppermost arc-shaped transition surface 8 is connected to the straight seam 7, and a short straight seam 9 is also connected between the two adjacent arc-shaped transition surfaces 8 at the lower end; the upper and lower ends of the arc-shaped transition surface 8 intersect with the plane 16, and the planes 16 where the two ends intersect have a height difference.

[0035] The split corrugated plate 2 of this structure has a better heat dissipation effect. After installation, a gap is generated between the split corrugated plate 2 and the split friction plate 1, which can improve the overall performance of the split corrugated plate 2. By optimizing the structure of the split corrugated plate 2, the smoothness of the engagement of the driven disc assembly is improved, and the shaking when the car starts is reduced.

[0036] The split corrugated sheet 2 is symmetrically provided with a pair of inclined transition surfaces 10 along the notch 15 on one side near the central curved transition surface 8. One transition surface 10 connects to the central straight seam 7, while the other extends to the edge. Both sides of the transition surface 10 intersect with planes 16, with a height difference between the two intersecting planes 16. The center of the lowest curved transition surface 8 is also connected to a semicircular arc seam 11 that is recessed toward the inner edge. Further optimization of the structure of the split corrugated sheet 2 ensures strength while maximizing heat dissipation and extending the service life of the split corrugated sheet 2.

[0037] The split corrugated sheet 2 is provided with rivet holes 12 and connection holes 13; the connection holes 13 are provided at the inner edge; the rivet holes 12 are divided into two rows, the upper row is provided with four rivet holes 12, and the lower row is provided with two rivet holes 12. The rivet holes 12 in the upper and lower rows are symmetrically distributed on both sides of the straight seam 7; there are four connection holes 13.

[0038] The inner ring 4 adopts a double-piece structure.

[0039] During installation, multiple groups of split corrugated sheets 2 are evenly distributed along the circumference of the inner ring 4. Rivets 3 are used to rivet the split corrugated sheets 2 and the inner ring 4 together through the connection holes 13. Each group of split corrugated sheets 2 is riveted to the inner ring 4 with four rivets 3 through the connection holes 13, ensuring riveting strength and preventing the split corrugated sheets 2 from falling off the inner ring 4. Split friction plates 1 are riveted to each side of each group of split corrugated sheets 2. Each group of split friction plates 1 and split corrugated sheets 2 are riveted diagonally, using two rivets 3 in the rivet hole 12 in the upper right corner and one rivet in the rivet hole 3 in the lower left corner. The unused rivet holes 12 in the upper left and lower right corners of the same surface are left as clearance holes for connecting the split friction plates 1 on the opposite side. The split friction plates 1 on both sides of each group of split corrugated sheets 2 are symmetrical about the center. At this time, when the split friction plates 1 are squeezed, each group of split corrugated sheets 2 will have the same deformation, improving the mechanical properties during use.

[0040] The inner ring 4 adopts a double-piece structure. The double-piece structure facilitates the stamping of the inner ring 4, which can save costs while ensuring strength.

[0041] The split friction plate 1 is a split ceramic friction plate. This has the characteristics of high melting point, high hardness, high wear resistance, and oxidation resistance. Compared with split friction plates 1 made of traditional materials, it has better mechanical properties and can greatly improve the wear resistance of the device. Its high melting point makes it safe and reliable during use and not prone to burning.

[0042] The two sides of the split corrugated sheet 2 are riveted to the vibration damping disc 14 by using rivets 3. The vibration damping disc 14 on both sides further reduces vibration when in use to enhance the vibration reduction effect.

[0043] The working principle of this embodiment is the same as that of embodiment 1.

Claims

1. A driven disc assembly, characterized in that: It comprises a split corrugated plate assembly, a disk hub (5), and a vibration damping spring (6); the split corrugated plate assembly comprises a split friction plate (1), a split corrugated plate (2), a rivet (3), and an inner ring (4); the inner ring is provided with a window and an assembly hole; the inner ring (4) is connected to the disk hub (5) through the assembly hole, and the vibration damping spring (6) is installed at the window; the split corrugated plate (2) is connected to the inner ring (4) by a rivet (3), and the split friction plate (1) is connected to the split corrugated plate (2) by a rivet (3); The split corrugated sheet (2) is a fan-shaped structure, and its surface is divided into a plane (16) and an arc-shaped transition surface (8). A straight seam (7) is provided in the middle of the upper part, and two notches (15) are provided on the outer periphery. Three arc-shaped transition surfaces (8) of different lengths are staggered on the surfaces on both sides of the straight seam (7), wherein the uppermost arc-shaped transition surface (8) is connected to the straight seam (7), and a short straight seam (9) is further connected between the two adjacent arc-shaped transition surfaces (8) at the lower end. The upper and lower ends of the arc-shaped transition surface (8) intersect with the plane (16), and the planes (16) where the two ends intersect have a height difference. The split corrugated sheet (2) is provided with a pair of inclined transition surfaces (10) symmetrically along the notch (15) on one side close to the central arc-shaped transition surface (8), wherein one section of the transition surface (10) is connected to the straight seam (7) in the middle, and the other section of the transition surface (10) extends to the edge. Both sides of the transition surface (10) intersect with the plane (16), and the two intersecting planes (16) have a height difference; the middle of the lowest arc-shaped transition surface (8) is also connected to a semicircular arc seam (11) that is recessed toward the inner edge.

2. The driven disc assembly according to claim 1, characterized in that: The split corrugated sheet (2) is provided with rivet holes (12) and connection holes (13); the connection holes (13) are provided at the inner edge; the rivet holes (12) are divided into two rows, the upper row is provided with four rivet holes (12), and the lower row is provided with two rivet holes (12), and the rivet holes (12) in the upper and lower rows are symmetrically distributed on both sides of the straight seam (7); there are four connection holes (13).

3. The driven disc assembly according to claim 1, characterized in that: The inner ring (4) adopts a double-piece structure.

4. The driven disc assembly according to claim 1, characterized in that: The split friction plate (1) adopts a split ceramic friction plate.

5. The driven disc assembly according to claim 1, characterized in that: Both sides of the split corrugated sheet are riveted to the vibration damping plate (14) using rivets (3).

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