Elastic durable friction plate structure

Abstract

An elastic durable friction plate structure comprises a base plate layer, a middle layer and a surface layer, wherein the middle layer is arranged on one side of the base plate layer, and the surface layer covers the side, away from the base plate layer, of the middle layer. And the middle layer is made of a rubber material and is of a sheet film structure. And the surface layer is made of a thermoplastic high polymer material and is of a sheet film structure. The side face, away from one side of the middle layer, of the surface layer is provided with a smooth reticulate pattern structure relative to other side faces. According to the elastic durable friction plate structure, the lining structure machined through a rolling forming method can automatically adjust the fit clearance between the lining structure and a grinding shaft in the state that the surface layer is abraded, so that the failure phenomenon caused by lining abrasion is avoided, the phenomena of oil leakage and noise generation are reduced, and the service life of the friction plate structure is prolonged. And the service life of the bushing is prolonged. The friction surface of the middle layer is of a smooth reticulate pattern structure, so that the lubricating performance is guaranteed, and meanwhile the oil storage function of the bush is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of bushing preparation, in particular to an elastic and durable friction plate structure. Background Art

[0002] A bushing is a matching part used outside mechanical components to achieve functions such as sealing and wear protection, and refers to a ring sleeve that acts as a gasket. In some fields of precision-matched structural parts, the bushing cannot be disassembled and replaced during use, so relatively high requirements are placed on the wear resistance and fit of the bushing. For example, Chinese Patent CN202221422099.0 discloses a plate structure of a high-wear-resistant and high-lubricating bearing, which includes a steel plate layer, a bronze powder layer disposed inside the inner circle of the steel plate layer, a polyimide layer covering the bronze powder layer, and an oil guiding component opened on one side of the polyimide layer. The oil guiding component includes a groove head disposed at one end of the polyimide layer, a groove tail disposed at the other end of the polyimide layer, a plurality of groove peaks and groove valleys spaced between the groove head and the groove tail, and an oil guiding groove connecting the groove head, the groove tail, the groove peaks and the groove valleys. This plate structure uses polyimide with high friction performance as the friction surface to improve its wear resistance. However, it is difficult to avoid the wear of the bushing. No matter how good the wear resistance of the bushing is, it will also wear due to the occurrence of fatigue wear, resulting in an increase in the clearance between the bushing and the mating shaft, and easily causing problems such as oil leakage and noise. Summary of the Utility Model

[0003] In view of this, the utility model provides an elastic and durable friction plate structure to solve the above problems.

[0004] An elastic and durable friction plate structure includes a substrate layer, an intermediate layer disposed on one side of the substrate layer, and a surface layer covering the side of the intermediate layer away from the substrate layer. The intermediate layer is made of a rubber material and is a film structure. The surface layer is made of a thermoplastic polymer material and is a film structure. The side of the surface layer away from the intermediate layer has a reticular structure that is smoother than other sides.

[0005] Further, the substrate layer is made of a metal plate.

[0006] Further, the surface of the substrate layer facing the intermediate layer is rougher than other surfaces of the substrate layer.

[0007] Further, the intermediate layer covering the surface of the substrate layer needs to be fixed to the substrate layer through heating, cooling, and rolling processes.

[0008] Further, the surface layer covers the side of the intermediate layer away from the substrate layer and needs to be fixedly connected to the intermediate layer through heating, cooling, and rolling processes.

[0009] Compared with the prior art, the elastic and durable friction plate structure provided by the present invention can automatically adjust the fitting clearance with the mating shaft when the surface layer is worn during the processing of the bushing structure formed by the roll forming method, thereby avoiding the failure phenomenon caused by the wear of the bushing, reducing the phenomena of oil leakage and noise generation, and improving the service life of the bushing. The friction surface of the intermediate layer is a smooth reticular structure, which not only ensures the lubrication performance but also improves the oil storage function of the bushing. BRIEF DESCRIPTION OF THE DRAWINGS

[0010] Figure 1 It is a cross-sectional schematic diagram of the elastic and durable friction plate structure provided by the present invention.

[0011] Figure 2 is Figure 1 a cross-sectional schematic diagram of a bushing made of the elastic and durable friction plate structure. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0012] The following further details the specific embodiments of the present invention. It should be understood that the description of the embodiments of the present invention herein is not intended to limit the protection scope of the present invention.

[0013] As Figure 1 shown, it is a cross-sectional schematic diagram of the elastic and durable friction plate structure provided by the present invention. The elastic and durable friction plate structure includes a substrate layer 10, an intermediate layer 20 disposed on one side of the substrate layer 10, and a surface layer 30 covering the side of the intermediate layer 20 away from the substrate layer 10. It can be conceived that the elastic and durable friction plate structure further includes some other functional modules, such as a sintering module, a lubricating oil module, etc., which are well-known knowledge to those skilled in the art and will not be elaborated herein one by one.

[0014] The substrate layer 10 is made of a metal plate, and steel plates, copper plates, aluminum plates, etc. can be used. The surface of the substrate layer 10 facing the intermediate layer 20 is made rougher than other surfaces of the substrate layer 10 by using techniques such as sandblasting, shot peening, and chemical etching, so as to avoid relative displacement between the two when fitting the intermediate layer 20.

[0015] The intermediate layer 20 is made of a rubber material, such as natural rubber, styrene-butadiene rubber, cis-1,4-polybutadiene rubber, isoprene rubber, etc. The intermediate layer 20 is in the form of a film structure, which covers the surface of the substrate layer 10 and is heated to 150 °C, thus softening the intermediate layer 20 so that the intermediate layer 20 can completely adhere to the surface of the substrate layer 10. When the temperature of the intermediate layer 20 drops below 100 °C, the substrate layer 10 and the intermediate layer 20 are rolled to further ensure the adhesion between the substrate layer 10 and the intermediate layer 20, so that the two are fixedly connected together.

[0016] In another embodiment, depending on the type of rubber material, the required heating temperature will also change.

[0017] The surface layer 30 is made of a thermoplastic polymer material, such as polyoxymethylene, polyethylene, polyether ether ketone, polyamide, polytetrafluoroethylene, etc. The surface layer 30 is in the form of a film structure, which covers the surface of the intermediate layer 20 and is heated to 150 °C. When the temperature of the surface layer 30 drops below 120 °C, the substrate layer 10, the intermediate layer 20, and the surface layer 30 are rolled to adhere the surface layer 30 to the surface of the intermediate layer 20.

[0018] Please refer to Figure 2 , the surface layer 30 is heated above its glass transition temperature, and then the side of the surface layer 30 away from the intermediate layer 20 is adhered and rolled with a metal plate of other surface tissue structures. After cooling, the surface layer 30 is peeled off from the metal plate, so that the side of the surface layer 30 away from the intermediate layer 20 has a relatively smooth reticulated structure compared to other sides, thereby enhancing the oil storage function of the plate structure. The side of the surface layer 30 facing the intermediate layer 20 is relatively rough, so as to improve the infiltration property of this side with the intermediate layer 20, and thus obtain better bonding strength.

[0019] Compared with the prior art, the elastic and durable friction plate structure provided by the present invention is processed into a bushing structure by a roll forming method, which can automatically adjust the clearance with the mating shaft when the surface layer 30 is worn, thus avoiding the failure phenomenon caused by bushing wear, reducing the phenomena of oil leakage and noise generation, and improving the service life of the bushing. The friction surface of the intermediate layer 30 is a smooth reticulated structure, thus while ensuring the lubrication performance, it also enhances the oil storage function of the bushing.

[0020] The above are only the preferred embodiments of the present invention, and are not used to limit the protection scope of the present invention. Any modifications, equivalent replacements or improvements within the spirit of the present invention are all covered within the scope of the claims of the present invention.

Claims

1. An elastic and durable friction plate structure, characterized in that: The elastic and durable friction plate structure includes a substrate layer, an intermediate layer disposed on one side of the substrate layer, and a surface layer covering the side of the intermediate layer away from the substrate layer. The intermediate layer is made of a rubber material and is in a sheet film structure. The surface layer is made of a thermoplastic polymer material and is in a sheet film structure. The side of the surface layer away from the intermediate layer has a smooth reticular structure.

2. The elastic and durable friction plate structure according to claim 1, wherein: The substrate layer is made of a metal plate.

3. The elastic and durable friction plate structure according to claim 1, characterized in that: The surface of the substrate layer on the side facing the intermediate layer is rougher than the exposed surface of the substrate layer.

4. The elastic and durable friction plate structure according to claim 1, wherein: The intermediate layer covers the surface of the substrate layer and needs to be fixedly connected to the substrate layer through heating, cooling, and rolling processes.

5. The elastic and durable friction plate structure according to claim 1, characterized in that: The surface layer covers the side of the intermediate layer away from the substrate layer and needs to be fixedly connected to the intermediate layer through heating, cooling, and rolling processes.

Images