A corrugated bearing

Abstract

This utility model belongs to the field of bearing technology, specifically disclosing a corrugated bearing, including a bearing body and a wear-resistant layer and a noise-reducing layer disposed on the bearing body; the wear-resistant layer is disposed on the inner side of the bearing body, and the noise-reducing layer is disposed on the outer side of the bearing body, with an oil guide groove disposed on the inner side of the wear-resistant layer; the wear-resistant layer consists of three layers, namely a first wear-resistant layer, a second wear-resistant layer, and a third wear-resistant layer, the first wear-resistant layer being connected to the bearing body, the second wear-resistant layer being connected to the inner side of the first wear-resistant layer, and the third wear-resistant layer being connected to the inner side of the second wear-resistant layer, thus enabling the bearing body to achieve a better wear resistance effect through the three wear-resistant layers; the noise-reducing layer consists of three layers, namely a buffer layer, a sound insulation layer, and an epoxy resin layer, the buffer layer being connected to the bearing body, the sound insulation layer being connected to the outer side of the buffer layer, and the epoxy resin layer being connected to the outer side of the sound insulation layer, thus achieving a noise reduction effect through the buffer layer and the sound insulation layer.

Description

Technical Field

[0001] This utility model relates to the field of bearing technology, specifically a corrugated bearing. Background Technology

[0002] The bearing bush is the part of a sliding bearing that contacts the journal. It is shaped like a tile-shaped semi-cylindrical surface and is very smooth. It is generally made of wear-resistant materials such as bronze and anti-friction alloys. In special cases, it can be made of wood, engineering plastics, or rubber.

[0003] Under high loads, the boundary oil film of existing bearings is relatively easy to break, resulting in dry friction between the metal. Therefore, some people have created oil supply corrugations on the inner side of the bearing, such as the Chinese utility model patent with announcement number CN207554583U, which specifically discloses a corrugated bearing.

[0004] However, in actual use, people find that the above-mentioned corrugated bearings have poor noise reduction effect, and some bearings usually work under high load, high speed or harsh conditions. Long-term operation can easily cause damage to the bearings, resulting in poor wear resistance. Utility Model Content

[0005] The purpose of this invention is to provide a corrugated bearing bush that solves the problems mentioned in the background art.

[0006] To achieve the above objectives, the present invention provides the following technical solution: a corrugated bearing bush, comprising a bearing bush body and a wear-resistant layer and a noise-reducing layer disposed on the bearing bush body.

[0007] The wear-resistant layer is disposed on the inner side of the bearing body, the noise reduction layer is disposed on the outer side of the bearing body, and an oil guide groove is disposed on the inner side of the wear-resistant layer.

[0008] The wear-resistant layer consists of three layers: a first wear-resistant layer, a second wear-resistant layer, and a third wear-resistant layer. The first wear-resistant layer is connected to the bearing body, the second wear-resistant layer is connected to the inside of the first wear-resistant layer, and the third wear-resistant layer is connected to the inside of the second wear-resistant layer. This three-layer wear-resistant system enables the bearing body to achieve good wear resistance.

[0009] The noise reduction assembly consists of three layers: a buffer layer, a sound insulation layer, and an epoxy resin layer. The buffer layer is connected to the main bearing body, the sound insulation layer is connected to the outside of the buffer layer, and the epoxy resin layer is connected to the outside of the sound insulation layer. The buffer layer and sound insulation layer achieve noise reduction, and the epoxy resin layer provides corrosion protection.

[0010] As a preferred embodiment of this invention, the first wear-resistant layer is made of chromium carbide, tungsten carbide or titanium carbide; the second wear-resistant layer is made of nano-ceramics or silicon nitride; and the third wear-resistant layer is made of carbon steel plate, with a copper-lead alloy layer disposed on the surface of the carbon steel plate.

[0011] The third wear-resistant layer, made of carbon steel, provides strength, while the copper-lead alloy layer further enhances wear resistance. The first wear-resistant layer features high hardness, wear resistance, and resistance to high-temperature corrosion. The second wear-resistant layer possesses high strength, high-temperature resistance, biocompatibility, or functional properties.

[0012] In a preferred embodiment of this invention, the buffer layer is made of rubber or a polyurethane coating; the sound insulation layer is made of sound-absorbing cotton; and a trichloroethylene coating is provided between the buffer layer and the bearing body. The trichloroethylene coating further enhances the anti-corrosion effect, the buffer layer can absorb vibration and reduce noise transmission, and the sound insulation layer further enhances the sound insulation and noise reduction effect.

[0013] As a preferred embodiment of the present invention, the oil guide groove includes a corrugated groove, a guide groove, and an oil inlet. The corrugated grooves are arranged in a rectangular array and are connected by the guide groove. An oil inlet is provided in the middle of the guide groove. Lubricating oil is injected through the oil inlet and introduced into the corrugated groove through the guide groove.

[0014] As a preferred embodiment of this invention, the oil inlet penetrates the wear-resistant layer, the bearing body, and the noise-reducing layer to facilitate the injection of lubricating oil.

[0015] Compared with the prior art, the beneficial effects of this utility model are:

[0016] This invention utilizes a three-layer composite wear-resistant layer with a material gradient design to balance surface hardness and matrix toughness, thus extending service life. The buffer layer reduces vibration energy, the sound insulation layer blocks sound wave transmission, and the epoxy resin layer seals the surface, further improving the anti-corrosion effect. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the three-dimensional structure of the present invention. Figure 1 ;

[0018] Figure 2 This is a schematic diagram of the three-dimensional structure of the present invention. Figure 2 ;

[0019] Figure 3 This is a schematic diagram of the wear-resistant layer structure of this utility model;

[0020] Figure 4 This is a schematic diagram of the noise reduction layer structure of this utility model.

[0021] In the diagram: 1. Bearing body; 2. Wear-resistant layer; 201. First wear-resistant layer; 202. Second wear-resistant layer; 203. Third wear-resistant layer; 3. Noise reduction layer; 301. Buffer layer; 302. Sound insulation layer; 303. Epoxy resin layer; 4. Oil guide groove; 401. Corrugated groove; 402. Guide groove; 403. Oil inlet. Detailed Implementation

[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. 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.

[0023] In the description of this utility model, it should be noted that the terms "vertical", "up", "down", "horizontal", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0024] In the description of this utility model, it should also be noted that, unless otherwise explicitly specified and limited, the terms "set," "install," "connect," and "link" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0025] Please see Figure 1-4 This utility model provides a technical solution: a corrugated bearing, including a bearing body 1 and a wear-resistant layer 2 and a noise-reducing layer 3 disposed on the bearing body 1.

[0026] The wear-resistant layer 2 is disposed on the inner side of the bearing body 1, the noise reduction layer 3 is disposed on the outer side of the bearing body 1, and an oil guide groove 4 is disposed on the inner side of the wear-resistant layer 2.

[0027] The wear-resistant layer 2 consists of three layers: a first wear-resistant layer 201, a second wear-resistant layer 202, and a third wear-resistant layer 203. The first wear-resistant layer 201 is connected to the bearing body 1, the second wear-resistant layer 202 is connected to the inside of the first wear-resistant layer 201, and the third wear-resistant layer 203 is connected to the inside of the second wear-resistant layer 202. The three-layer wear-resistant layer 2 enables the bearing body 1 to achieve good wear resistance.

[0028] The noise reduction layer 3 consists of three layers: a buffer layer 301, a sound insulation layer 302, and an epoxy resin layer 303. The buffer layer 301 is connected to the bearing body 1, the sound insulation layer 302 is connected to the outside of the buffer layer 301, and the epoxy resin layer 303 is connected to the outside of the sound insulation layer 302. The buffer layer 301 and the sound insulation layer 302 achieve noise reduction, and the epoxy resin layer 303 provides corrosion protection.

[0029] As a preferred embodiment of the present invention, the first wear-resistant layer 201 is made of chromium carbide, tungsten carbide or titanium carbide; the second wear-resistant layer 202 is made of nano-ceramics or silicon nitride; and the third wear-resistant layer 203 is made of carbon steel plate, and a copper-lead alloy layer is provided on the surface of the carbon steel plate.

[0030] The third wear-resistant layer, made of 203 carbon steel, provides strength, while the copper-lead alloy layer further enhances wear resistance. The first wear-resistant layer, 201, features high hardness, wear resistance, and resistance to high-temperature corrosion. The second wear-resistant layer, 202, possesses high strength, high-temperature resistance, biocompatibility, or functional properties.

[0031] In a preferred embodiment of this invention, the buffer layer 301 is made of rubber or a polyurethane coating; the sound insulation layer 302 is made of sound-absorbing cotton; and a trichloroethylene coating is provided between the buffer layer 301 and the bearing body 1. The trichloroethylene coating further enhances the anti-corrosion effect, the buffer layer 301 can absorb vibration and reduce noise transmission, and the sound insulation layer 302 further enhances the sound insulation and noise reduction effect.

[0032] As a preferred embodiment of this utility model, the oil guide groove 4 includes a corrugated groove 401, a guide groove 402, and an oil inlet 403. The corrugated grooves 401 are arranged in a rectangular array and are connected by the guide grooves 402. An oil inlet 403 is provided in the middle of the guide grooves 402. Lubricating oil is injected through the oil inlet 403 and introduced into the corrugated grooves 401 through the guide grooves 402.

[0033] As a preferred embodiment of this invention, the oil inlet 403 penetrates the wear-resistant layer 2, the bearing body 1, and the noise reduction layer 3 to facilitate the injection of lubricating oil.

[0034] In summary, this invention utilizes a first wear-resistant layer 201 (connected to the bearing body 1), made of chromium carbide, tungsten carbide, or titanium carbide, which provides high hardness and resistance to high-temperature corrosion. The second wear-resistant layer 202, made of nano-ceramics or silicon nitride, offers high strength and high-temperature resistance. The third wear-resistant layer 203, a copper-lead alloy coating on a carbon steel plate, balances strength and wear resistance.

[0035] Buffer layer 301 (connected to the bearing body 1), rubber / polyurethane coating, absorbs vibration, with a trichloroethylene coating at the bottom for enhanced corrosion resistance. Sound insulation layer 302, sound insulation cotton, blocks noise transmission. Epoxy resin layer 303, the outermost layer, provides corrosion protection.

[0036] Corrugated grooves 401, arranged in a rectangular array, store lubricating oil. Guide grooves 402 connect all corrugated grooves 401 to evenly distribute oil. Oil inlet 403 extends through all layers to the outside for easy central oil filling.

[0037] This utility model can achieve the following:

[0038] Wear resistance: The three-layer composite wear-resistant layer, through material gradient design (hard ceramic + metal alloy), takes into account both surface hardness and matrix toughness, thus extending service life.

[0039] Noise reduction: The buffer layer 301 reduces vibration energy, the sound insulation layer 302 blocks the transmission of sound waves, and the epoxy resin layer 303 seals the surface, resulting in a comprehensive noise reduction of more than 20dB.

[0040] Corrosion resistance: Trichloroethylene coating + epoxy resin double protection, suitable for humid or corrosive working conditions.

[0041] Lubrication efficiency: The 401 corrugated groove matrix design increases oil storage capacity, and the 402 guide groove ensures uniform oil film coverage, reducing the risk of dry friction.

[0042] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A corrugated bearing bush, characterized in that: Includes the bearing body (1) and the wear-resistant layer (2) and noise reduction layer (3) provided on the bearing body (1); The wear-resistant layer (2) is disposed on the inner side of the bearing body (1), the noise reduction layer (3) is disposed on the outer side of the bearing body (1), and the wear-resistant layer (2) is provided with an oil guide groove (4). The wear-resistant layer (2) consists of three layers, namely a first wear-resistant layer (201), a second wear-resistant layer (202), and a third wear-resistant layer (203). The first wear-resistant layer (201) is connected to the bearing body (1), the second wear-resistant layer (202) is connected to the inside of the first wear-resistant layer (201), and the third wear-resistant layer (203) is connected to the inside of the second wear-resistant layer (202). The noise reduction layer (3) consists of three layers: a buffer layer (301), a sound insulation layer (302), and an epoxy resin layer (303). The buffer layer (301) is connected to the bearing body (1), the sound insulation layer (302) is connected to the outside of the buffer layer (301), and the epoxy resin layer (303) is connected to the outside of the sound insulation layer (302).

2. The corrugated bearing bush according to claim 1, characterized in that: The first wear-resistant layer (201) is made of chromium carbide, tungsten carbide or titanium carbide; the second wear-resistant layer (202) is made of nano-ceramics or silicon nitride; the third wear-resistant layer (203) is made of carbon steel plate, and a copper-lead alloy layer is provided on the surface of the carbon steel plate.

3. The corrugated bearing bush according to claim 1, characterized in that: The buffer layer (301) is made of rubber or polyurethane coating; the sound insulation layer (302) is made of sound insulation cotton, and trichloroethylene coating is provided between the buffer layer (301) and the bearing body (1).

4. The corrugated bearing bush according to claim 1, characterized in that: The oil guide groove (4) includes a corrugated groove (401), a guide groove (402) and an oil inlet (403). The corrugated groove (401) is arranged in a rectangular array of several, and the several corrugated grooves (401) are connected through the guide groove (402), and an oil inlet (403) is opened in the middle of the guide groove (402).

5. A corrugated bearing bush according to claim 4, characterized in that: The oil inlet (403) penetrates the wear-resistant layer (2), the bearing body (1), and the noise reduction layer (3).

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