A clutch driven plate assembly with a heat dissipation structure

Abstract

This invention discloses a clutch driven plate assembly with a heat dissipation structure, comprising a split friction plate, a split wave plate, a driven plate body, and rivets. The driven plate body has a ring-shaped structure. Both the split friction plate and the split wave plate are provided with heat dissipation structure A and heat dissipation structure B. The split friction plate is connected to both sides of the outer ring of the driven plate body by rivets. The split wave plate is located on one side of the driven plate body by rivets and connected between the driven plate body and the friction plate. This invention utilizes the heat dissipation structures A and B respectively provided on the split friction plate and the split wave plate to achieve good heat dissipation of the clutch driven plate and ensure stable operation.

Description

Technical Field

[0001] This invention relates to the technical field of automotive clutches, and more specifically to a clutch driven plate assembly with a heat dissipation structure. Background Technology

[0002] The clutch driven plate assembly is a crucial component of an automotive clutch, playing a vital role in smooth engagement and damping torsional vibration. It primarily comprises a wave plate, friction plates, and the driven plate body. The wave plate, a key axial elastic component, is riveted between the driven plate assembly and the friction plates. During clutch engagement, the wave plate undergoes axial compression, and as the axial displacement increases, the contact area between it and the friction plates expands, crucial for smooth clutch engagement. In traditional clutch driven plate assemblies, the wave plate is riveted to the friction plates, and then to the driven plate. This increase in the driven plate increases the moment of inertia of the clutch driven plate assembly. Since the wear rate of the friction plates increases with temperature, while the coefficient of friction decreases, higher temperatures increase the wear rate of the friction material, reducing its service life. The decreased coefficient of friction leads to poor clutch driven plate performance and further reduces the overall lifespan of the clutch driven plate assembly, potentially causing deformation and other problems.

[0003] Chinese patent CN202021231176.5 discloses "a heat dissipation driven disc assembly", which includes an inner disc hub and a driven disc assembly. The inner disc hub is located at the center of the driven disc assembly. The driven disc assembly includes a driven disc and friction plates mounted on the driven disc. A concave heat dissipation structure is provided on the circumference of the driven disc. This technology utilizes the concave heat dissipation structure on the driven disc to allow the friction plates to dissipate heat from the inside to the outside of the heat dissipation structure when working, which can solve the problem of poor heat dissipation of the driven disc assembly to a certain extent. However, because the heat dissipation effect is achieved by improving the structure of the driven disc itself, the outer circumferential area of ​​the driven disc is reduced, and the number of connected wave plates and friction plates is also reduced accordingly. When assembled into a clutch, this will affect the smoothness of the vehicle's engagement, resulting in an unstable start for the vehicle. Summary of the Invention

[0004] To address the aforementioned shortcomings, this invention provides a clutch driven plate assembly with a heat dissipation structure that offers excellent heat dissipation, long service life, and smooth engagement.

[0005] To achieve the above objectives, the technical solution of the present invention is as follows: A clutch driven plate assembly with a heat dissipation structure includes a split friction plate, a split wave plate, a driven plate body, and rivets; the driven plate body has an annular structure; the split friction plate and the split wave plate are respectively provided with heat dissipation structure A and heat dissipation structure B; the split friction plate is connected to both sides of the outer ring of the driven plate body by rivets; the split wave plate is set on one side of the driven plate body by rivets and connected between the driven plate body and the friction plate.

[0006] As a further technical improvement, the aforementioned split friction plate has a fan-shaped structure; the heat dissipation structure A has several heat dissipation holes; the riveting holes are in three groups, arranged in a ring along the inner diameter of the split friction plate, with each group containing two riveting holes, and the two riveting holes are arranged opposite to each other on the inner and outer rings of the split friction plate.

[0007] In use, several separate friction plates are arranged circumferentially along the inner ring to form a ring-shaped separate friction plate assembly. One side of the separate friction plate is connected to the driven plate body through a riveting hole, and the other side of the separate friction plate is connected to the driven plate body by a separate wave plate. Each separate friction plate is connected to two separate wave plates. During connection, a rivet is used to pass through the first set of riveting holes of the separate friction plate to connect the first separate wave plate to the separate friction plate. The rivet then passes through the second set of riveting holes to connect the separate friction plate, the second separate wave plate, and the driven plate body together in sequence. The rivet passes through the third set of riveting holes of the separate friction plate to connect the separate friction plate to the second separate wave plate. A gap is generated between the connections of several separate friction plates. The gap, together with the heat dissipation holes on the separate friction plates, improves the heat dissipation effect of the clutch driven plate. The heat dissipation holes provided by the separate friction plates not only reduce the weight of the parts themselves, but also enhance their heat dissipation capacity.

[0008] As a further technical improvement, the aforementioned split friction plate includes a metal base and a friction material. The metal base has a fan-shaped structure, and the right side is also attached with a reverse "L"-shaped friction material. The friction material has two through holes in the middle that correspond to the second set of riveting holes, and two inwardly recessed arc-shaped notches at the straight edge. The arc-shaped notches are the positions of the third set of riveting holes. The heat dissipation holes are located on the left side of the split friction plate. The split corrugated plate has a heat dissipation structure B at the position corresponding to the metal base.

[0009] Metals have good heat dissipation properties, and using metal-based split friction plates can further improve the heat dissipation effect of the split friction plates. The friction material improves the wear resistance of the split friction plates. When connecting, the part of the split friction plate with heat dissipation holes is connected to the part of the split corrugated plate without heat dissipation structure B, and the side of the split friction plate with friction material is connected to the side of the split corrugated plate with heat dissipation structure B, which further improves the heat dissipation effect of the clutch driven plate assembly and prevents the temperature rise from being too high during use.

[0010] As a further technical improvement, when the aforementioned friction material covers the metal substrate, it occupies 25% to 50% of the area of ​​the metal substrate, and a heat dissipation material is plated on the metal substrate without the friction material. Further refining the proportion of the friction material in the space makes the split friction plate structure more rational, and the use of heat dissipation material can further improve the heat dissipation effect of the metal substrate.

[0011] As a further technical improvement, the aforementioned heat dissipation holes are five rounded rectangular holes. Two rounded rectangular holes are arranged horizontally near the outer ring of the split friction plate, and three rounded rectangular holes are arranged vertically below the two rounded rectangular holes near the inner ring of the split friction plate. In this arrangement, the width of the rounded rectangular holes near the outer ring of the split friction plate increases from left to right, while the width of the rounded rectangular holes near the inner ring of the split friction plate decreases from left to right. This optimized design of the heat dissipation holes makes the structure of the split friction plate more rational and less prone to deformation during use.

[0012] As a further technical improvement, the aforementioned split waveform sheet is a rounded quadrilateral with a concave arc notch on the lower left side, a teardrop-shaped notch on the top right side, and a straight notch at the bottom right side, with the lower part of the teardrop-shaped notch corresponding to the left side of the straight notch. These notches further improve the heat dissipation effect of the split waveform sheet during use and facilitate its operation.

[0013] As a further technical improvement, the heat dissipation structure B of the aforementioned split waveform sheet is formed by the interlacing connection of plane C and plane D, with plane C and plane D having different heights. The heat dissipation structure B with a height difference between plane C and plane D, after being connected to the split friction plate, can further improve the heat dissipation effect and increase the service life of the clutch driven plate.

[0014] In use, the split friction plates are connected to one side of the driven plate body by rivets. On the other side, the split friction plates are also connected to the driven plate body by rivets, with split corrugated plates. During connection, every two split corrugated plates are connected to one split friction plate, and then the split friction plates, split corrugated plates, and driven plate body are connected by rivets. The clutch driven plate assembly is then assembled. When assembled, the heat dissipation structure A and heat dissipation structure B between the split corrugated plates and the split friction plates cooperate to achieve good heat dissipation. The assembled clutch driven plate assembly is then assembled with other components to form the clutch. During use, the clutch dissipates heat through the ventilation and heat dissipation structure formed by the split corrugated plates and split friction plates of the driven plate assembly, ensuring stable clutch temperature during use and preventing overheating that could deform the clutch driven plate assembly structure and affect its use.

[0015] Compared with the prior art, the present invention has the following advantages and beneficial effects: 1. This invention optimizes the structure of the split friction plate and the split waveform plate, so that the driven disk assembly after being riveted to the driven plate body has a ventilation and heat dissipation structure, ensuring that the temperature of the driven disk assembly will not be too high during use, with a long service life and good joint smoothness. Because of the use of split waveform plates and split friction plates, it is easy to replace when the components are worn.

[0016] 2. The present invention further optimizes the structure and materials of the split friction plate. The heat dissipation hole structure reduces the weight of the split friction plate itself, making it more effective in heat dissipation during use.

[0017] 3. The present invention further optimizes the structure of the split waveform sheet. During use, its heat dissipation structure cooperates with the heat dissipation structure of the split friction sheet to form a heat dissipation groove structure, thereby improving the heat dissipation effect. Attached Figure Description

[0018] Figure 1 This is a top view schematic diagram of a clutch driven plate assembly with a heat dissipation structure according to the present invention.

[0019] Figure 2 This is a schematic diagram of the split friction plate structure of a clutch driven plate assembly with a heat dissipation structure according to the present invention.

[0020] Figure 3 This is a schematic diagram of the split waveform plate structure of a clutch driven plate assembly with a heat dissipation structure according to the present invention.

[0021] Figure 4 This is a schematic diagram of the structure of the clutch driven plate assembly with heat dissipation structure of the present invention after being assembled with other parts.

[0022] Attached image labels: Split friction plate-1, split wave plate-2, driven plate body-3, rivet-4, heat dissipation structure A-5, rivet hole-6, metal base-7, friction material-8, arc-shaped notch-9, heat dissipation structure B-10, plane C-11, plane D-12, arc notch-13, teardrop-shaped notch-14, straight notch-15. Detailed Implementation

[0023] The invention will be further described below with reference to the accompanying drawings.

[0024] Example 1: A clutch driven plate assembly with a heat dissipation structure includes a split friction plate 1, a split wave plate 2, a driven plate body 3, and rivets 4; the driven plate body 3 has an annular structure; the split friction plate 1 and the split wave plate 2 are respectively provided with heat dissipation structures A5 and B10, and the split friction plate 1 is connected to both sides of the outer ring of the driven plate body 3 by rivets 4; the split wave plate 2 is provided on one side of the driven plate body 3 by rivets 4 and connected between the driven plate body 3 and the friction plate 1.

[0025] In use, the split friction plate 1 is connected to one side of the driven plate body 3 by rivets 4. On the other side, the split friction plate 1 and the driven plate body 3 are also connected by rivets 4 to the split wave plate 2. During connection, every two split wave plates 2 are connected to one split friction plate 1. Then, the split friction plate 1, the split wave plate 2 and the driven plate body 3 are connected by rivets 4, and the clutch driven plate assembly is completed. When assembled, the heat dissipation structure A5 and the heat dissipation structure B10 between the split wave plate 2 and the split friction plate 1 cooperate with each other to achieve good heat dissipation. The assembled clutch driven plate assembly is assembled with other components to form a clutch. During the use of the clutch, the ventilation and heat dissipation structure formed by the cooperation of the split wave plate 2 and the split friction plate 1 of the driven plate assembly dissipates heat to ensure that the temperature of the clutch is stable during use and that the clutch driven plate assembly structure will not be deformed due to excessive temperature, which would affect its use.

[0026] Example 2: The difference from Embodiment 1 is that the split friction plate 1 has a fan-shaped structure; the heat dissipation structure A5 has several heat dissipation holes; and the riveting holes 6 are in three groups, arranged in a ring along the inner diameter of the split friction plate 1. Each group of riveting holes 6 includes two holes, and the two riveting holes are arranged opposite to each other on the inner and outer rings of the split friction plate 1.

[0027] In use, several separate friction plates 1 are arranged circumferentially along the inner ring to form a ring-shaped separate friction plate assembly. One side of the separate friction plate 1 is connected to the driven plate body 3 through a riveting hole 6, and the other side of the separate friction plate 1 is connected to the driven plate body 3 by a separate wave plate 2. Each separate friction plate 1 is connected to two separate wave plates 2. During connection, a rivet 4 is used to pass through the first set of riveting holes 6 of the separate friction plate 1 to connect the first separate wave plate 2 to the separate friction plate 1. The rivet 4 connects the separate friction plate 1, the second separate wave plate 2, and the driven plate body 3 together through the second set of riveting holes 6. The rivet 4 passes through the third set of riveting holes 6 of the separate friction plate 1 to connect the separate friction plate 1 to the second separate wave plate 2. A gap will be generated between the connections of several separate friction plates 1. The gap, together with the heat dissipation holes on the separate friction plate 1, improves the heat dissipation effect of the clutch driven plate. The heat dissipation holes provided by the separate friction plate 1 not only reduce the weight of the part itself, but also enhance its heat dissipation capacity.

[0028] The split friction plate 1 includes a metal base 7 and a friction material 8. The metal base 7 has a fan-shaped structure, and the friction material 8 with an inverted "L" shape is also attached to the right side. The friction material 8 has two through holes in the middle that correspond to the second set of riveting holes 6, and two inwardly recessed arc-shaped notches 9 at the straight edge. The arc-shaped notches 9 are the positions of the third set of riveting holes 6. The heat dissipation hole is located on the left side of the split friction plate 1. The split wave plate 2 has a heat dissipation structure B10 at the position corresponding to the metal base 7.

[0029] Metal has good heat dissipation properties. Using a metal base 7 for the split friction plate 1 can further improve the heat dissipation effect of the split friction plate 1. The friction material 8 improves the wear resistance of the split friction plate 1. When connecting, the part of the split friction plate 1 with heat dissipation holes is connected to the part of the split wave plate 2 without heat dissipation structure B10. The side of the split friction plate 1 with friction material 8 is connected to the side of the split wave plate 2 with heat dissipation structure B10, which further improves the heat dissipation effect of the clutch driven plate assembly and prevents the temperature rise from being too high during use.

[0030] When the friction material 8 covers the metal substrate 7, it occupies 25% to 50% of the area of ​​the metal substrate. Furthermore, a heat-dissipating material is plated on the metal substrate 7 where the friction material 8 is not covered. This further refines the spatial proportion of the friction material 8, making the structure of the split friction plate 1 more rational. The use of heat-dissipating material further improves the heat dissipation effect of the metal substrate 7.

[0031] The heat dissipation holes are five rounded rectangular holes. Two rounded rectangular holes are arranged horizontally near the outer ring of the split friction plate 1, and three rounded rectangular holes are arranged vertically below the two rounded rectangular holes near the inner ring of the split friction plate 1. In this arrangement, the width of the rounded rectangular holes near the outer ring of the split friction plate 1 increases from left to right, while the width of the rounded rectangular holes near the inner ring of the split friction plate 1 decreases from left to right. This optimized design of the heat dissipation holes makes the structure of the split friction plate 1 more reasonable and less prone to deformation during use.

[0032] The working principle of this embodiment is the same as that of embodiment 1.

[0033] Example 3: The difference from Example 1 is that, The split waveform sheet 2 has a rounded parallelogram structure. It features a concave arc notch 13 on the lower left side, a teardrop-shaped notch 14 on the top right side, and a straight notch 15 at the bottom right side. The lower part of the teardrop-shaped notch 14 corresponds to the left side of the straight notch 15. These notches further improve the heat dissipation of the split waveform sheet 2 during use and facilitate its operation.

[0034] The heat dissipation structure B10 of the split waveform plate 2 is formed by the interlaced connection of plane C11 and plane D12, with plane C11 and plane D12 having different heights. The heat dissipation structure B10 with a height difference is formed between plane C11 and plane D12, which can further improve the heat dissipation effect and increase the service life of the clutch driven plate after being connected with the split friction plate 1.

[0035] The working principle of this embodiment is the same as that of embodiment 1.

[0036] The above descriptions are merely some embodiments of the present invention and are not intended to limit the scope of the present invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without creative effort are within the scope of protection of the present invention.

Claims

1. A clutch driven plate assembly with a heat dissipation structure, characterized in that: It includes a split friction plate (1), a split wave plate (2), a driven plate body (3), and rivets (4); the driven plate body (3) has a ring structure; the split friction plate (1) and the split wave plate (2) are respectively provided with heat dissipation structure A (5) and heat dissipation structure B (10); the split friction plate (1) is connected to both sides of the outer ring of the driven plate body (3) by rivets (4); the split wave plate (2) is provided on one side of the driven plate body (3) by rivets (4) and connected between the driven plate body (3) and the split friction plate (1); The split friction plate (1) has a fan-shaped structure; the heat dissipation structure A (5) has several heat dissipation holes; the riveting holes (6) are in three groups, arranged in a ring along the inner diameter of the split friction plate (1), each group of riveting holes (6) contains two, and the two riveting holes are arranged opposite to each other on the inner ring and outer ring of the split friction plate (1); The split friction plate (1) includes a metal base (7) and a friction material (8). The metal base (7) has a fan-shaped structure, and the right side is also attached with a friction material (8) with an inverted "L" shape. The friction material (8) has two through holes in the middle that correspond to the second set of riveting holes (6), and two inwardly recessed arc-shaped notches (9) at the straight edge. The arc-shaped notches (9) are the positions of the third set of riveting holes (6). The heat dissipation hole is located on the left side of the split friction plate (1). The split wave plate (2) has a heat dissipation structure B (10) at the position corresponding to the metal base (7).

2. The clutch driven plate assembly with heat dissipation structure as described in claim 1, characterized in that: When the friction material (8) covers the metal base (7), it occupies 25% to 50% of the area of ​​the metal base, and a heat dissipation material is plated on the metal base (7) that is not covered by the friction material (8).

3. The clutch driven plate assembly with heat dissipation structure as described in claim 1, characterized in that: The heat dissipation holes are five rounded rectangular holes. Two rounded rectangular holes are arranged horizontally near the outer ring of the split friction plate (1), and three rounded rectangular holes are arranged vertically below the two rounded rectangular holes near the inner ring of the split friction plate (1).

4. The clutch driven plate assembly with heat dissipation structure as described in claim 1, characterized in that: The split waveform sheet (2) is a quadrilateral with rounded corners. It has an inwardly concave arc notch (13) at the lower left side, a teardrop-shaped notch (14) at the right side of the top edge, and a straight notch (15) at the bottom right side. The lower part of the teardrop-shaped notch (14) corresponds to the left side of the straight notch (15).

5. The clutch driven plate assembly with heat dissipation structure as described in claim 1, characterized in that: The heat dissipation structure B (10) provided in the split waveform sheet (2) is formed by the interlaced connection of plane C (11) and plane D (12), and the heights of plane C (11) and plane D (12) are different.

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