Lightweight composite clutch drive plate

Abstract

The utility model discloses a lightweight composite material clutch driven plate relates to clutch accessory technical field, and this scheme includes composite material driven plate body, the inside fixedly connected with metal reinforcing ring of composite material driven plate body, the inside interference fit fixedly connected with composite material hub core of metal reinforcing ring, the both sides end face of composite material driven plate body all are installed with friction plate subassembly, the utility model discloses through the synergic design of composite material and partial metal strengthening, realizes the effect of reducing weight of traditional metal driven plate, reduces the fuel consumption and transmission inertia of whole car, and again through metal reinforcing ring and metal cooperation ring make up composite material shear resistance, wear -resisting short board, make the torsional strength get the promotion, guarantee transmission stability, simultaneously, the combination of graphite / carbon fiber heat conduction buffer layer and radiate hollow slot can improve the heat dissipation efficiency, prolong the friction plate life above.

Description

Technical Field

[0001] This utility model relates to the field of clutch component technology, specifically to a lightweight composite material clutch driven plate. Background Technology

[0002] The clutch driven plate is the core component of a car clutch. Its main function is to transmit the torque output by the engine to the transmission through friction, while also buffering the shocks and vibrations of the transmission system. Traditional clutch driven plates mostly adopt an all-metal structure (such as a steel plate body + cast iron hub). Although this meets the strength requirements, it is relatively heavy, which is not conducive to the lightweight design of automobiles. According to statistics, traditional metal driven plates account for more than 40% of the weight of the clutch assembly, which directly increases the vehicle's fuel consumption and transmission inertia.

[0003] Furthermore, the heat dissipation performance of the existing driven disk's metal body is limited, making it difficult to quickly dissipate the large amount of heat generated by the friction plates during operation. This can easily lead to a decrease in the coefficient of friction and a shortened service life. In existing technologies, improvements to the driven disk's lightweight design mostly focus on "reducing the thickness of the metal plate" or "optimizing the layout of the damping springs." However, the former leads to insufficient strength, while the latter cannot overcome the weight bottleneck of the metal material and does not solve the core problems of friction plate connection and heat dissipation. Utility Model Content

[0004] To address the shortcomings of existing technologies, this invention provides a lightweight composite material clutch driven plate, which solves the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model is implemented through the following technical solution: a lightweight composite material clutch driven disc, including a composite material driven disc body, a metal reinforcing ring fixedly connected inside the composite material driven disc body, a composite material hub fixedly connected inside the metal reinforcing ring with an interference fit, and friction plate assemblies installed on both end faces of the composite material driven disc body; The composite material driven disk body is a disc-shaped structure with several radially shaped hollow grooves evenly opened around its circumference, and each radially shaped hollow groove has an arc-shaped transition part on both sides of its groove wall. The outer surface of the metal reinforcing ring is fixedly connected with multiple protruding teeth, and the inner wall of the composite material driven disc body is provided with multiple tooth grooves that cooperate with the protruding teeth. The friction plate assembly includes a friction plate body and a heat-conducting buffer layer disposed between the friction plate body and the composite material driven disk body. The two end faces of the composite material driven disk body are provided with embedded mounting grooves adapted to the friction plate assembly.

[0006] Preferably, the driven disk body of the composite material is made of carbon fiber reinforced epoxy resin matrix composite material, and the hub core of the composite material is made of glass fiber reinforced polycaprolactam composite material, which can significantly reduce weight while ensuring torsional strength.

[0007] Preferably, the friction pad body is made of ceramic matrix composite material, and its surface is provided with an anti-slip and wear-resistant coating. The anti-slip and wear-resistant coating is an alumina-zirconia composite coating, and the thermally conductive buffer layer is a graphite / carbon fiber composite layer, which has both thermal conductivity and elasticity, and can quickly conduct frictional heat to the driven disk body, while buffering frictional impact.

[0008] Preferably, the interior of the embedded mounting slot is provided with a plurality of mounting holes and weight-reducing holes in sequence, the mounting holes and weight-reducing holes are spaced apart, and the outer surface of the friction plate assembly is provided with rivets that penetrate the mounting holes, which can further reduce the overall weight.

[0009] Preferably, the outer surface of the friction pad assembly is integrally formed with a protrusion extending into the weight reduction hole, which can position the friction pad assembly and prevent displacement.

[0010] Preferably, a connecting ring is fixedly connected to the outer surface of the composite material hub core, and a plurality of bolts connected to the metal reinforcing ring are embedded in the outer surface of the connecting ring. The inner wall of the composite material hub core is provided with a spline groove adapted to the drive shaft, which can increase the connection strength between the composite material hub core and the metal reinforcing ring.

[0011] This invention provides a lightweight composite material clutch driven plate. It offers the following advantages: This lightweight composite material clutch driven plate, through a synergistic design of "composite material body + key metal reinforcement," achieves weight reduction compared to traditional metal driven plates by utilizing a carbon fiber epoxy body, glass fiber hub core, and radial perforated grooves, thereby reducing overall vehicle fuel consumption and transmission inertia. Furthermore, the metal reinforcing ring and metal mating ring compensate for the composite material's shortcomings in shear and wear resistance, improving torsional strength and ensuring transmission stability. Simultaneously, the combination of a graphite / carbon fiber thermally conductive buffer layer and radial perforated grooves enhances heat dissipation efficiency and extends the lifespan of the friction plates. Moreover, the protrusion on one side of the friction plate assembly, in conjunction with the weight-reducing holes, improves the connection strength of the friction plate assembly, reducing the loosening rate. This effectively solves the problems of traditional driven plates, such as heavy weight, the contradiction between strength and weight reduction, easy loosening of friction plates, and poor heat dissipation. Attached Figure Description

[0012] Figure 1 This is a schematic diagram of the overall structure of this utility model; Figure 2 This is a schematic diagram of the composite material driven disk body of this utility model; Figure 3This is a schematic diagram of the structure of the metal reinforcing ring of this utility model; Figure 4 This is a schematic diagram of the composite material hub core of this utility model; Figure 5 This is a schematic diagram of the friction plate assembly of this utility model.

[0013] In the figure, 1. Composite material driven disc body; 11. Tooth groove; 12. Embedded mounting groove; 121. Mounting hole; 122. Weight reduction hole; 2. Metal reinforcing ring; 21. Raised tooth; 3. Composite material hub core; 31. Connecting ring; 32. Bolt; 33. Spline groove; 4. Friction plate assembly; 5. Hollowed-out groove. Detailed Implementation

[0014] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings. 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.

[0015] Example 1: As Figures 1 to 5 As shown, the lightweight composite material clutch driven plate includes a composite material driven plate body 1, a metal reinforcing ring 2 is fixedly connected inside the composite material driven plate body 1, a composite material hub core 3 is fixedly connected inside the metal reinforcing ring 2 with an interference fit, and friction plate assemblies 4 are installed on both end faces of the composite material driven plate body 1.

[0016] The composite material driven disk body 1 is a disc-shaped structure with several radially shaped hollowed-out grooves 5 evenly opened around its circumference. Each radially shaped hollowed-out groove 5 has an arc-shaped transition part on both sides of the groove wall. As the driven disk rotates at high speed, it forms a radial air flow channel to accelerate heat dissipation.

[0017] Multiple protruding teeth 21 are fixedly connected to the outer surface of the metal reinforcing ring 2. Multiple tooth grooves 11 that cooperate with the protruding teeth 21 are opened on the inner wall of the composite driven disk body 1. Through the interlocking structure of the outer peripheral protruding teeth 21 and tooth grooves 11, the composite material is prevented from directly bearing radial shear force.

[0018] The friction plate assembly 4 includes a friction plate body and a heat-conducting buffer layer disposed between the friction plate body and the composite material driven disk body 1. The two end faces of the composite material driven disk body 1 are provided with embedded mounting grooves 12 that are adapted to the friction plate assembly 4, which can buffer frictional impact and quickly dissipate heat.

[0019] The composite driven disk body 1 is made of carbon fiber reinforced epoxy resin-based composite material, and the composite hub 3 is made of glass fiber reinforced polycaprolactam composite material, which can reduce the overall weight while ensuring strength.

[0020] The friction pad body is made of ceramic matrix composite material, and its surface is provided with an anti-slip and wear-resistant coating. The anti-slip and wear-resistant coating is an alumina-zirconia composite coating, and the thermally conductive buffer layer is a graphite / carbon fiber composite layer.

[0021] The interior of the embedded mounting slot 12 is provided with a plurality of mounting holes 121 and weight reduction holes 122, which are spaced apart. The outer surface of the friction plate assembly 4 is provided with rivets that pass through the mounting holes 121, which facilitates weight reduction and installation of the friction plate assembly 4.

[0022] The outer surface of the friction pad assembly 4 is integrally formed with protrusions extending into the weight reduction hole 122, which can improve the connection strength of the friction pad assembly and reduce the loosening rate.

[0023] A connecting ring 31 is fixedly connected to the outer surface of the composite material hub core 3. Multiple bolts 32 connected to the metal reinforcing ring 2 are embedded in the outer surface of the connecting ring 31. A spline groove 33 adapted to the drive shaft is opened on the inner wall of the composite material hub core 3, which can enhance the installation strength of the composite material hub core 3.

[0024] Working principle: When the driven disc is working, the drive shaft meshes with the composite material hub 3 through splines, transmitting the engine torque to the composite material hub 3, and then from the composite material hub 3 to the metal reinforcing ring 2 on the inner ring of the composite material driven disc body 1. The metal reinforcing ring 2, through the interlocking structure of the outer peripheral protrusion 21 and the tooth groove 11, avoids the composite material directly bearing the radial shear force, and at the same time transmits the power evenly to the entire composite material driven disc body 1. When the clutch is engaged, the composite material driven disc body 1 transmits the power to the friction plate assemblies 4 embedded on both sides. The friction plate assemblies 4 transmit the torque to the gearbox through the friction with the pressure plate and flywheel. During this process, the heat-conducting buffer layer on one side of the friction plate body can buffer the friction impact and quickly dissipate heat. Meanwhile, the radial hollow grooves 5 of the composite material driven disc body 1 form radial air flow channels as the driven disc rotates at high speed, accelerating heat dissipation. At the same time, the hollow grooves 5 and the weight reduction holes 122 further optimize the weight reduction while ensuring strength, ultimately achieving the coordinated work of "precise power transmission - impact buffering - heat dissipation".

[0025] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. It will be apparent to those skilled in the art that this utility model is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or basic characteristics of this utility model. Therefore, the embodiments should be considered exemplary and non-limiting in all respects. The scope of this utility model is defined by the appended claims rather than the foregoing description, and thus all variations falling within the meaning and scope of equivalents of the claims are intended to be included within this utility model. No reference numerals in the claims should be construed as limiting the scope of the claims.

[0026] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A lightweight composite material clutch driven plate, characterized in that: The composite driven disk body (1) includes a metal reinforcing ring (2) fixedly connected inside the composite driven disk body (1), a composite hub core (3) fixedly connected inside the metal reinforcing ring (2) with an interference fit, and friction pad assemblies (4) installed on both ends of the composite driven disk body (1). The composite material driven disk body (1) has a disc-shaped structure with a number of radially hollowed slots (5) evenly distributed around its circumference, and each radially hollowed slot (5) has an arc-shaped transition part on both sides of its side wall. The outer surface of the metal reinforcing ring (2) is fixedly connected with a plurality of protruding teeth (21), and the inner wall of the composite material driven disk body (1) is provided with a plurality of tooth grooves (11) that cooperate with the protruding teeth (21). The friction plate assembly (4) includes a friction plate body and a heat-conducting buffer layer disposed between the friction plate body and the composite material driven disk body (1). The two end faces of the composite material driven disk body (1) are provided with embedded mounting grooves (12) adapted to the friction plate assembly (4).

2. The lightweight composite material clutch driven plate according to claim 1, characterized in that: The driven disk body (1) of the composite material is made of carbon fiber reinforced epoxy resin composite material, and the hub core (3) of the composite material is made of glass fiber reinforced polycaprolactam composite material.

3. The driven plate of the lightweight composite material clutch according to claim 1, characterized in that: The friction pad body is made of ceramic matrix composite material, and its surface is provided with an anti-slip and wear-resistant coating. The anti-slip and wear-resistant coating is an alumina-zirconia composite coating, and the thermally conductive buffer layer is a graphite / carbon fiber composite layer.

4. The lightweight composite material clutch driven plate according to claim 1, characterized in that: The embedded mounting slot (12) has a plurality of mounting holes (121) and weight-reducing holes (122) sequentially opened inside. The mounting holes (121) and weight-reducing holes (122) are spaced apart. The outer surface of the friction plate assembly (4) is fitted with rivets that penetrate the mounting holes (121).

5. The lightweight composite material clutch driven plate according to claim 4, characterized in that: The outer surface of the friction plate assembly (4) is integrally formed with a protrusion extending into the weight reduction hole (122).

6. The lightweight composite material clutch driven plate according to claim 1, characterized in that: The outer surface of the composite material hub (3) is fixedly connected to a connecting ring (31), and the outer surface of the connecting ring (31) is embedded with a plurality of bolts (32) connected to the metal reinforcing ring (2). The inner wall of the composite material hub (3) is provided with a spline groove (33) adapted to the drive shaft.

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