Clutch plate with double-sided asymmetric heat dissipation structure

Abstract

The utility model relates to clutch friction piece technical field, propose a kind of clutch friction piece with double-sided asymmetric heat dissipation structure, including base, the side fixedly connected with friction block of base, the side wall of base is distributed in circumferential array with several friction blocks, gap is arranged between the two adjacent friction blocks, several friction blocks are all provided with multiple grooves, the center position of base is fixedly connected with several connecting blocks, several connecting blocks are distributed with base isometric angle, stable piece is arranged between several connecting blocks. The utility model greatly enhances the heat dissipation efficiency by asymmetric heat dissipation design, under clutch high load condition (such as frequent half linkage or large torque transmission), friction surface temperature can be reduced to safe range, to prevent friction block resin base carbonization. This directly solves the problem of uneven heat dissipation of traditional symmetric heat dissipation groove.

Description

Technical Field

[0001] This utility model relates to the field of clutch friction plate technology, specifically to a clutch friction plate with a double-sided asymmetric heat dissipation structure. Background Technology

[0002] In the field of clutch friction plate technology, traditional structures have long faced three core problems: uneven heat dissipation, accumulated thermal deformation, and vibration and noise. As automotive powertrains develop towards higher power density (such as turbocharging and hybrid systems), these defects are further amplified under high-load conditions, specifically manifesting as follows: First, traditional friction plates often employ a symmetrical heat dissipation groove design (such as radial straight grooves or mesh grooves), resulting in heat accumulating evenly on the friction surface. When the clutch is frequently in partial engagement (such as in congested traffic) or transmitting large torque, the friction surface temperature can reach over 400 °C. This causes the resin matrix of the friction block to carbonize at high temperatures, reducing the coefficient of friction and causing clutch slippage. Second, traditional friction plates are rigidly connected to the gearbox input shaft through a single steel plate, lacking a vibration buffering mechanism. Engine torque fluctuations are directly transmitted to the friction plates, resulting in high-frequency vibration (200-500Hz), which accelerates rivet loosening or micro-cracks in the base material. The vibration is amplified through the clutch housing, increasing in-vehicle noise. In view of this, the present invention proposes a clutch friction plate with a double-sided asymmetric heat dissipation structure. Utility Model Content

[0003] This invention proposes a clutch friction plate with a double-sided asymmetric heat dissipation structure, which solves the problem of poor heat dissipation effect in the existing symmetrical heat dissipation groove design.

[0004] The technical solution of this utility model is as follows: A clutch friction plate with a double-sided asymmetric heat dissipation structure includes a base, a friction block is fixedly connected to one side of the base, a plurality of friction blocks are distributed in a circumferential array on the side wall of the base, a gap is provided between two adjacent friction blocks, a plurality of grooves are provided on each of the friction blocks, a plurality of connecting blocks are fixedly connected to the center of the base, the plurality of connecting blocks are distributed at equal angles around the base, and a stabilizing element is provided between the plurality of connecting blocks.

[0005] Preferably, all friction blocks are fan-shaped structures, and the gap width between two adjacent friction blocks is 0.1-0.2 mm.

[0006] Preferably, the grooves are arc-shaped grooves of different lengths, and the centers of the several grooves on the same friction block are located at different positions.

[0007] Preferably, the friction blocks on the sidewall of the substrate are distributed in the outer ring and the inner ring, and a plurality of heat dissipation grooves are formed between the friction blocks in the outer ring and the friction blocks in the inner ring, and the plurality of heat dissipation grooves are distributed at equal angles around the substrate.

[0008] Preferably, the stabilizing component includes a mounting ring, the outer edge of which is provided with a plurality of connecting bolts arranged in a circumferential array, the mounting ring being fixedly connected to the connecting block by the connecting bolts, a stabilizing disc being fixedly connected to the inner side of the mounting ring, and an internal gear ring being fixedly connected to the center of the stabilizing disc.

[0009] Preferably, the outer edge of the stabilizing plate is provided with a plurality of mounting grooves that are distributed at equal angles around the stabilizing plate, and a vibration damping spring is fixedly connected to the inner side of each of the mounting grooves.

[0010] The working principle and beneficial effects of this utility model are as follows: 1. The friction blocks are arranged in a fan-shaped circumferential array, and the gaps form the main heat dissipation channels. When the clutch rotates, air flows quickly through the gaps, carrying away surface heat and balancing heat dissipation efficiency and structural strength. Each friction block has arc-shaped grooves of different lengths and different center positions. This asymmetrical layout increases the heat dissipation surface area and generates turbulent airflow during movement, accelerating the diffusion of heat from the high friction area to the environment. Compared with the traditional straight groove design, the heat dissipation efficiency is greatly improved.

[0011] 2. The vibration damping design of the stabilizing components significantly absorbs high-frequency vibrations, reducing the risk of noise transmission to the clutch housing, preventing rivet loosening or micro-cracks in the base material. In high power density systems (such as hybrid powertrains), this can reduce in-vehicle noise and extend the overall service life of the friction plates. Attached Figure Description

[0012] The present invention will now be described in further detail with reference to the accompanying drawings and specific embodiments.

[0013] Figure 1 is a schematic diagram of the structure of a clutch friction plate with a double-sided asymmetric heat dissipation structure according to this utility model. Figure 1 ; Figure 2 is a schematic diagram of the structure of a clutch friction plate with a double-sided asymmetric heat dissipation structure according to this utility model. Figure 2 ; Figure 3 is a partial structural schematic diagram of this utility model; Figure 4 is a structural schematic diagram of the stabilizer of this utility model.

[0014] In the diagram: 1. Base; 11. Connecting block; 12. Gap; 13. Groove; 14. Heat dissipation groove; 2. Friction block; 3. Stabilizing component; 31. Mounting ring; 32. Connecting bolt; 33. Stabilizing plate; 34. Internal gear ring; 35. Mounting groove; 36. Vibration damping spring. Detailed Implementation

[0015] The technical solutions of this utility model will be clearly and completely described below with reference to the embodiments of this utility model. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of this utility model.

[0016] As shown in Figures 1 to 4, this embodiment proposes a clutch friction plate with a double-sided asymmetric heat dissipation structure, including a base 1, with friction blocks 2 fixedly connected to one side of the base 1, and a plurality of friction blocks 2 arranged in a circumferential array on the side wall of the base 1. The friction blocks 2 are arranged in a fan shape with a gap 12 between each adjacent friction block 2. The gap 12 between each adjacent friction block 2 is 0.1-0.2mm wide. Multiple grooves 13 are formed on each friction block 2. The grooves 13 are arc-shaped grooves of different lengths. The centers of the grooves 13 on the same friction block 2 are at different positions. Several connecting blocks 11 are fixedly connected to the center of the base 1. The connecting blocks 11 are distributed at equal angles around the base 1. Stabilizers 3 are arranged between the connecting blocks 11.

[0017] Several fan-shaped friction blocks 2 (distributed in a circumferential array) are arranged on one side of the base 1. A gap 12 of 0.1-0.2mm is set between adjacent friction blocks 2. These gaps 12 serve as the main heat dissipation channels, allowing air to quickly enter the friction surface and carry away heat during clutch rotation. At the same time, the width of the gap 12 is optimized to 0.1-0.2mm to balance heat dissipation efficiency and structural strength, and to avoid deformation of the friction blocks due to excessively large gaps 12. Each friction block 2 has multiple arc-shaped grooves 13 of different lengths, and the grooves on the same friction block 2 13 The centers of the circles are in different positions. This asymmetrical layout (the centers of the arc grooves are dispersed) increases the heat dissipation surface area and generates turbulent airflow during the operation of the clutch, which accelerates the diffusion of heat from the friction surface to the environment.

[0018] Furthermore, the friction blocks 2 on the sidewall of the substrate 1 are distributed on the outer and inner rings, with the friction blocks 2 on the outer ring and the friction blocks on the inner ring being... Several heat dissipation grooves 14 are provided between the two parts, and the heat dissipation grooves 14 are distributed at equal angles around the base 1.

[0019] Several heat dissipation grooves 14 are provided between the outer ring friction block 2 and the inner ring friction block 2 at equal angles. 14 serves as an auxiliary heat dissipation channel, allowing heat to be conducted from the high-temperature area (outer ring) to the low-temperature area (inner ring or center of substrate 1), achieving asymmetric heat transfer (the outer ring has higher heat dissipation requirements, and the hole distribution enhances its heat dissipation). When the clutch rotates at high speed, the heat dissipation groove 14 promotes air convection and reduces heat accumulation.

[0020] Furthermore, the stabilizing component 3 includes a mounting ring 31. The outer edge of the mounting ring 31 is provided with a plurality of connecting bolts 32 arranged in a circumferential array. The mounting ring 31 is fixedly connected to the connecting block 11 through the connecting bolts 32. A stabilizing disc 33 is fixedly connected to the inner side of the mounting ring 31. An internal gear ring 34 is fixedly connected to the center of the stabilizing disc 33. A plurality of mounting grooves 35 are provided on the outer edge of the stabilizing disc 33 and are distributed at equal angles around the stabilizing disc 33. A damping spring 36 is fixedly connected to the inner side of each of the mounting grooves 35.

[0021] Mounting ring 31 is fixed to connecting block 11 by connecting bolt 32, forming a rigid base and stabilizing the internal gear ring at the center of disk 33. 34 is connected to the input shaft of the gearbox to transmit torque; at the same time, the mounting groove 35 on the outer edge of the stabilizing plate 33 fixes the damping spring 36. When the clutch is subjected to vibration (such as shifting shock), the damping spring 36 is compressed and rebounded to absorb high-frequency vibration energy and prevent vibration from being transmitted to the base 1 and friction block 2.

[0022] The heat dissipation structure (gap 12, groove 13, heat dissipation slot 14) and the stabilizer 3 work together: the rapid heat dissipation reduces the risk of thermal deformation, and the stabilizer 3 reduces mechanical vibration. The combination of the two ensures that the friction plate operates stably in a high temperature and high vibration environment. The asymmetrical heat dissipation design (difference between inner and outer rings) complements the central layout of the stabilizer 3, improving overall reliability.

[0023] The above are merely preferred embodiments of the present utility model and are not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model shall be included within the protection scope of the present utility model.

Claims

1. A clutch friction plate with a double-sided asymmetric heat dissipation structure, comprising a base (1), characterized in that, Friction blocks (2) are fixedly connected to one side of the substrate (1). Several friction blocks (2) are arranged in a circular array on the side wall of the substrate (1). A gap (12) is provided between two adjacent friction blocks (2). Multiple grooves (13) are provided on each of the friction blocks (2). Several connecting blocks (11) are fixedly connected to the center of the substrate (1). Several connecting blocks (11) are distributed at equal angles around the substrate (1). Stabilizers (3) are provided between the several connecting blocks (11).

2. A clutch friction plate with a double-sided asymmetric heat dissipation structure according to claim 1, characterized in that, The friction blocks (2) are all fan-shaped structures, and the gap (12) between two adjacent friction blocks (2) is 0.1-0.2 mm wide.

3. A clutch friction plate with a double-sided asymmetric heat dissipation structure according to claim 1, characterized in that, The grooves (13) are arc-shaped grooves of different lengths, and the centers of the several grooves (13) on the same friction block (2) are at different positions.

4. A clutch friction plate with a double-sided asymmetric heat dissipation structure according to claim 1, characterized in that, The friction blocks (2) on the sidewall of the substrate (1) are distributed in the outer ring and the inner ring. A number of heat dissipation grooves (14) are provided between the friction blocks (2) in the outer ring and the friction blocks (2) in the inner ring. The number of heat dissipation grooves (14) are distributed at equal angles around the substrate (1).

5. A clutch friction plate with a double-sided asymmetric heat dissipation structure according to claim 1, characterized in that, The stabilizer (3) includes a mounting ring (31), and a plurality of connecting bolts (32) arranged in a circular array are provided on the outer edge of the mounting ring (31). The mounting ring (31) is fixedly connected to the connecting block (11) by the connecting bolts (32). A stabilizing disc (33) is fixedly connected to the inner side of the mounting ring (31), and an internal gear ring (34) is fixedly connected to the center of the stabilizing disc (33).

6. A clutch friction plate with a double-sided asymmetric heat dissipation structure according to claim 5, characterized in that, The outer edge of the stabilizing plate (33) is provided with a plurality of mounting grooves (35) that are distributed at equal angles around the stabilizing plate (33), and a damping spring (36) is fixedly connected to the inner side of each of the mounting grooves (35).

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