High-wear-resistance clutch friction plate
By designing a three-layer composite structure and optimizing the heat dissipation channel, the problems of poor wear resistance, insufficient bonding strength, and uneven lubrication of traditional friction plates at high temperatures are solved, achieving high wear resistance and efficient heat dissipation, and extending the service life of the friction plates.
Patent Information
- Application Number
- CN202520300734.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-02-25
- Publication Date
- 2026-02-17
- Estimated Expiration
- 2035-02-25
AI Technical Summary
Traditional friction pads suffer from reduced wear resistance under high-temperature conditions, insufficient bonding strength between the friction material and the metal substrate, unreasonable heat dissipation structure, and poor lubricant penetration, leading to easy thermal degradation, accelerated wear, and uneven lubrication.
It adopts a three-layer composite structure design. The base layer is made of chromium-molybdenum alloy steel, the transition layer is a nickel-based tungsten carbide coating, and the wear-resistant layer is composed of alumina ceramic particles and polyimide resin. Combined with the optimization of heat dissipation holes and oil guide grooves, it forms a 'rigid and flexible' structure to improve friction performance.
It significantly improves the wear resistance and heat dissipation efficiency of the friction plates, extends their service life, and ensures the stability of the friction coefficient and the uniformity of lubrication effect.
Smart Images
Figure CN223923640U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to clutch friction plate technical field, concretely is a kind of high wear-resistant clutch friction plate. BACKGROUND
[0002] Clutch friction plate is one of important components of automobile, clutch is located in the flywheel shell between engine and gearbox, clutch assembly is fixed on the rear plane of flywheel by screw, the output shaft of clutch is the input shaft of gearbox;
[0003] Traditional friction plate is mostly adopted phenolic resin-based composite material or single metal matrix, there are following defects:
[0004] Wear resistance significantly decreases under high temperature working condition, and heat recession is easy to produce;
[0005] Friction material and metal matrix are insufficient in bonding strength, and lead to delamination and peeling;
[0006] Heat dissipation structure is unreasonable, and wear is aggravated;
[0007] Lubricating oil penetration ability is poor, and lubricating effect is uneven. INVENTION CONTENTS
[0008] The utility model discloses a kind of high wear-resistant clutch friction plate, with the characteristics of good wear resistance, heat dissipation efficiency improves, long service life.
[0009] To achieve the above-mentioned purpose, the utility model provides the following technical scheme: a kind of high wear-resistant clutch friction plate, including matrix layer, the outer wall of the matrix layer is fixedly connected with transition layer, the other side of the transition layer is fixedly connected with wear-resistant layer, the outer wall of the wear-resistant layer is equipped with a plurality of strip-shaped heat dissipation holes, the surface of the wear-resistant layer is provided with a plurality of array distribution's pit, the back of the matrix layer is equipped with a plurality of oil guide grooves.
[0010] As a kind of high wear-resistant clutch friction plate of the utility model preferably, the inner wall of the heat dissipation hole is plated with diamond carbon film.
[0011] As a kind of high wear-resistant clutch friction plate of the utility model preferably, the oil guide groove is spiral structure, a plurality of the oil guide groove is radially distributed, the oil guide groove groove depth is 0.5mm, groove width is 1.2mm.
[0012] As a kind of high wear-resistant clutch friction plate of the utility model preferably, the matrix layer is forged with chromium molybdenum alloy steel, and thickness is 3-5mm.
[0013] As a kind of high wear-resistant clutch friction plate of the utility model preferably, the transition layer is nickel-based tungsten carbide composite coating, and thickness is 0.1-0.15mm.
[0014] As a kind of high wear-resistant clutch plate of the utility model, the wear-resistant layer is formed by hot pressing of alumina ceramic particles and polyimide resin, with thickness of 1.2-1.5mm.
[0015] Compared with the prior art, the utility model has the beneficial effects as follows:
[0016] The high wear-resistant clutch plate has three-layer composite structure design, optimized heat dissipation channel and surface strengthening treatment, which significantly improves wear resistance and thermal stability, the base layer is made of chromium molybdenum alloy steel and provided with oil guide groove, the transition layer is made of tungsten carbide coating, and the wear-resistant layer is made of ceramic-resin composite material, cooperated with heat dissipation hole, which realizes the synergistic improvement of friction coefficient stability and wear resistance, good wear resistance, improved heat dissipation efficiency and long service life. BRIEF DESCRIPTION OF DRAWINGS
[0017] In order to more clearly illustrate the specific embodiments of the utility model or the technical solutions in the prior art, the drawings needed in the specific embodiments or the prior art description will be briefly introduced below. In all the drawings, similar elements or parts are generally indicated by similar reference numerals. In the drawings, each element or part is not necessarily drawn according to the actual proportion.
[0018] Fig. 1 It is the overall three-dimensional structure diagram of the utility model;
[0019] Fig. 2 It is the overall cross-sectional structure diagram of the utility model;
[0020] Fig. 3 It is the base layer back structure diagram of the utility model.
[0021] Marked in the figure: 1, base layer; 2, transition layer; 3, wear-resistant layer; 4, heat dissipation hole; 5, dimple; 6, oil guide groove. DETAILED DESCRIPTION
[0022] The embodiments of the technical solutions of the utility model will be described in detail below with reference to the drawings. The following embodiments are only used to more clearly illustrate the technical solutions of the utility model, therefore, only as an example, and cannot limit the protection scope of the utility model.
[0023] It should be noted that, unless otherwise specified, the technical terms or scientific terms used in the present application should be the usual meaning understood by the skilled in the art to which the utility model belongs.
[0024] Please refer to Figs. 1 to 3The utility model provides a high wear -resisting clutch friction plate, including base layer 1, the outer wall of base layer 1 is fixedly connected with transition layer 2, the other side of transition layer 2 is fixedly connected with wear -resisting layer 3, and the outer wall of wear -resisting layer 3 is equipped with a plurality of strip -shaped heat dissipation holes 4, and the surface of wear -resisting layer 3 is provided with a plurality of array distribution's pit 5, and the back of base layer 1 is equipped with a plurality of oil guide grooves 6.
[0025] In the embodiment: base layer 1 adopts chromium molybdenum alloy steel forging, and the thickness is 3-5mm, and the chromium molybdenum steel has high yield strength (≥900MPa) and impact toughness, can bear the dynamic load when clutch high frequency joint, avoid the deformation of matrix, transition layer 2 is nickel-based tungsten carbide composite coating, and the thickness is 0.1-0.15mm, and the tungsten carbide particle (hardness HV2200) is embedded in the toughness matrix of nickel-based alloy as hard phase, forms "rigid and flexible" structure, and in the friction process, it bears shear force preferentially, reduces the overall wear rate, and wear -resisting layer 3 is formed by the hot pressing of alumina ceramic particles and polyimide resin, and the alumina ceramic particles still keep high hardness and chemical inertness under high temperature, reduce the adhesive wear, and the temperature resistance of polyimide resin reaches 300 DEG C or more (better than 180 DEG C of phenolic resin), will not be pyrolyzed and produce pore under high temperature, maintains the stability of friction coefficient, improves the wear resistance of friction plate, and the plurality of heat dissipation holes 4 utilize the rotational inertia force to guide airflow to pass through the hole, and the heat dissipation effect is good, and the oil guide groove 6 is in spiral structure, and is in radial layout, to ensure that lubricating oil forms laminar flow under the action of centrifugal force, avoids the energy loss caused by turbulent flow.
[0026] As a kind of technical optimization scheme of the utility model, the inner wall of heat dissipation hole 4 is plated with diamond carbon film.
[0027] In the embodiment: the inner wall of heat dissipation hole 4 is plated with diamond carbon film, effectively improve the strength of the inner wall of heat dissipation hole 4.
[0028] As a kind of technical optimization scheme of the utility model, the oil guide groove 6 is in spiral structure, and the plurality of oil guide grooves 6 are distributed in radial, and the groove depth of oil guide groove 6 is 0.5mm, and the groove width is 1.2mm.
[0029] In the embodiment: the oil guide groove 6 is in spiral structure, and is in radial layout, to ensure that lubricating oil forms laminar flow under the action of centrifugal force, avoids the energy loss caused by turbulent flow.
[0030] As a kind of technical optimization scheme of the utility model, base layer 1 adopts chromium molybdenum alloy steel forging, and the thickness is 3-5mm.
[0031] In the embodiment: base layer 1 adopts chromium molybdenum alloy steel forging, and the thickness is 3-5mm, and the chromium molybdenum steel has high yield strength (≥900MPa) and impact toughness, can bear the dynamic load when clutch high frequency joint, avoid the deformation of matrix.
[0032] As a technical optimization scheme of the utility model, the transition layer 2 is a nickel-based tungsten carbide composite coating, and the thickness is 0.1-0.15 mm.
[0033] In the embodiment, the transition layer 2 is a nickel-based tungsten carbide composite coating, the thickness is 0.1-0.15 mm, tungsten carbide particles (hardness HV2200) are embedded in a nickel-based alloy toughness matrix as hard phase to form a structure of "flexible and rigid combination", and preferentially bear shear force in the friction process to reduce the overall wear rate.
[0034] As a technical optimization scheme of the utility model, the wear-resistant layer 3 is formed by hot pressing of alumina ceramic particles and polyimide resin, and the thickness is 1.2-1.5 mm.
[0035] In the embodiment, the wear-resistant layer 3 is formed by hot pressing of alumina ceramic particles and polyimide resin, the alumina ceramic particles still maintain high hardness and chemical inertness at high temperature to reduce adhesive wear, the temperature resistance of the polyimide resin reaches above 300 DEG C (better than 180 DEG C of phenolic resin), and the alumina ceramic particles will not be thermally decomposed to form pores at high temperature, so that the stability of the friction coefficient is maintained, and the wear resistance of the friction plate is improved.
[0036] Working principle: the base layer 1 is forged by chromium molybdenum alloy steel, and the thickness is 3-5 mm; the chromium molybdenum steel has high yield strength (≥900 MPa) and impact toughness, can bear the dynamic load when the clutch is high-frequency connected, avoids the deformation of the base, the transition layer 2 is a nickel-based tungsten carbide composite coating, and the thickness is 0.1-0.15 mm; the tungsten carbide particles (hardness HV2200) are embedded in a nickel-based alloy toughness matrix as hard phase to form a structure of "flexible and rigid combination", and preferentially bear shear force in the friction process to reduce the overall wear rate; the wear-resistant layer 3 is formed by hot pressing of alumina ceramic particles and polyimide resin; the alumina ceramic particles still maintain high hardness and chemical inertness at high temperature to reduce adhesive wear; the temperature resistance of the polyimide resin reaches above 300 DEG C (better than 180 DEG C of phenolic resin), and the alumina ceramic particles will not be thermally decomposed to form pores at high temperature, so that the stability of the friction coefficient is maintained, and the wear resistance of the friction plate is improved; the plurality of heat dissipation holes 4 utilize the rotational inertia force to guide airflow to pass through the holes, and the heat dissipation effect is good; the oil guide groove 6 is in a spiral structure and is radially arranged, so that the laminar flow of lubricating oil is formed under the action of centrifugal force, and energy loss caused by turbulent flow is avoided.
[0037] The above is only a preferred embodiment of the utility model, and does not limit the utility model, and any modification, equivalent replacement and improvement within the spirit and principle of the utility model should be included in the protection scope of the utility model.
Claims
1. A high wear-resistant clutch friction plate, comprising a substrate layer (1), characterized in that: The outer wall of the substrate layer (1) is fixedly connected to a transition layer (2), and the other side of the transition layer (2) is fixedly connected to a wear-resistant layer (3). The outer wall of the wear-resistant layer (3) is provided with multiple strip-shaped heat dissipation holes (4). The surface of the wear-resistant layer (3) is provided with multiple array-distributed pits (5). The back of the substrate layer (1) is provided with multiple oil guide grooves (6).
2. The high wear-resistant clutch friction plate according to claim 1, characterized in that: The inner wall of the heat dissipation hole (4) is coated with a diamond carbon film.
3. The high wear-resistant clutch friction plate according to claim 1, characterized in that: The oil guide groove (6) has a spiral structure, and multiple oil guide grooves (6) are radially distributed. The oil guide groove (6) has a depth of 0.5 mm and a width of 1.2 mm.
4. The high wear-resistant clutch friction plate according to claim 1, characterized in that: The substrate layer (1) is forged from chromium-molybdenum alloy steel with a thickness of 3-5 mm.
5. The high wear-resistant clutch friction plate according to claim 1, characterized in that: The transition layer (2) is a nickel-based tungsten carbide composite coating with a thickness of 0.1-0.15 mm.