High-temperature-resistant self-lubricating engine bearing bush

Abstract

The utility model relates to the technical field of engine bearing bushes, and discloses a high-temperature-resistant self-lubricating engine bearing bush which comprises a bush body, a plurality of heat dissipation holes are formed in the outer portion of the bush body, a circulation oil groove is formed in the front end of the bush body, arc-shaped grooves are formed in the two sides of the front end of the bush body, and a plurality of oil storage grooves are formed in the two sides of the front end of the bush body. Extending blocks are fixedly connected to the upper end and the lower end of the tile body, limiting blocks are fixedly connected to the two sides of the tile body, a high-temperature-resistant assembly used for improving the strength is arranged in the tile body and comprises a reinforcing layer, and the outer portion of the reinforcing layer is fixedly connected to the inner wall of the tile body. According to the bearing bush, continuous supply of lubricating oil is further guaranteed through the arrangement of the arc-shaped groove and the multiple oil storage grooves, the continuity of lubrication is kept, the dry friction phenomenon is prevented, the service life of the bearing bush is prolonged through the design, and the operation efficiency and reliability of the whole engine are improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of engine bearing, especially to high temperature resistant self -lubricating engine bearing. BACKGROUND

[0002] Engine bearing is the key component for supporting and reducing the friction between engine shaft and bearing. The bearing is usually made of metal material, installed between bearing seat and crankshaft, can withstand high temperature and high pressure generated during engine operation, reduce the friction and wear between moving parts, and improve the service life of engine.

[0003] In the prior art, part of the engine bearing will encounter poor lubrication during use, which will make the bearing surface unable to get enough oil film protection, directly leading to bearing wear, and long-time operation will cause bearing damage, engine overheating, and even mechanical failure. Therefore, the high temperature resistant self-lubricating engine bearing is proposed to solve the above problems. UTILITY MODEL CONTENTS

[0004] In order to make up for the above shortcomings, the utility model provides a high temperature resistant self-lubricating engine bearing, which aims at improving the problem that the bearing surface cannot get enough oil film protection in the prior art during use.

[0005] In order to achieve the above purpose, the utility model adopts the following technical scheme:

[0006] The high temperature resistant self-lubricating engine bearing comprises a bearing body, a plurality of heat dissipation holes are formed in the outer part of the bearing body, a flow-through oil groove is formed in the front end of the bearing body, arc-shaped grooves are formed in the two sides of the front end of the bearing body, a plurality of oil storage grooves are formed in the two sides of the front end of the bearing body, extension blocks are fixedly connected to the upper and lower ends of the bearing body, limiting blocks are fixedly connected to the two sides of the bearing body, and a high temperature resistant assembly for improving strength is arranged in the inner part of the bearing body.

[0007] As a further description of the above technical scheme:

[0008] The high temperature resistant assembly comprises a reinforcing layer, the reinforcing layer is fixedly connected to the inner wall of the bearing body, a main body layer is fixedly connected to the front end of the reinforcing layer, a temperature resistant layer is fixedly connected to the front end of the main body layer, and an outer coating layer is fixedly connected to the front end of the temperature resistant layer.

[0009] As a further description of the above technical scheme:

[0010] The oil storage groove is connected with the heat dissipation hole through a plurality of connecting channels to improve the flow efficiency of lubricating oil.

[0011] As a further description of the above technical scheme:

[0012] A plurality of said oil storage tank with said arc-shaped groove for guiding lubricating oil;

[0013] As a further description of the above technical solutions:

[0014] The extension block and the limiting block are used for mounting and positioning the tile body, so that the tile body is stable;

[0015] As a further description of the above technical solutions:

[0016] The reinforcing layer is silicon carbide, and the main body layer is aluminum alloy;

[0017] As a further description of the above technical solutions:

[0018] The temperature-resistant layer is graphite, and the outer coating layer is a ceramic coating;

[0019] As a further description of the above technical solutions:

[0020] The oil storage tank is communicated with the flow-through oil tank through a chute, further improving the use efficiency of lubricating oil.

[0021] The utility model has the following beneficial effects:

[0022] 1、The utility model discloses a heat dissipation hole and flow-through oil tank effectively reduce the working temperature, ensure that lubricating oil can be evenly distributed, reduce friction loss, the setting of arc-shaped groove and multiple oil storage tanks further guarantees the continuous supply of lubricating oil, maintains the continuity of lubrication, prevents the occurrence of dry friction phenomenon, these designs not only prolong the service life of the bearing bush, but also improve the operation efficiency and reliability of the whole engine.

[0023] 2、The utility model discloses the use of silicon carbide improves the wear resistance of the bearing bush under high temperature and high pressure, ensures the structural integrity, the high thermal conductivity of aluminum alloy accelerates heat dissipation, improves the heat dissipation effect, the graphite temperature-resistant layer provides self-lubricating performance, effectively reduces friction resistance, maintains the appropriate temperature simultaneously, the external ceramic coating protects the internal structure, prevents thermal shock damage, thereby improves the durability and stability of the bearing bush, ensures the reliable operation under extreme working conditions. DRAWINGS

[0024] Figure 1 It is the three-dimensional schematic view of the high-temperature-resistant self-lubricating engine bearing bush provided by the utility model;

[0025] Figure 2 It is the structural schematic view of the limiting block of the high-temperature-resistant self-lubricating engine bearing bush provided by the utility model;

[0026] Figure 3 It is Figure 1 The enlarged view of A in the middle;

[0027] Figure 4 The utility model provides a high temperature -resistant self -lubricating engine bearing bush's main body layer's structure schematic view.

[0028] Legend:

[0029] 1, the body of tile; 2, heat dissipation hole; 3, flow oil groove; 4, arc groove; 5, oil storage groove; 6, connecting channel; 7, extension block; 8, limit block; 9, reinforcing layer; 10, main body layer; 11, temperature -resistant layer; 12, outer coating. Specific embodiments

[0030] The technical scheme in the embodiments of the utility model will be apparently and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by the person skilled in the art without creative labor belong to the protection scope of the utility model.

[0031] Reference Figures 1 to 3 , the utility model provides an embodiment: high temperature -resistant self -lubricating engine bearing bush, including the body of tile 1, the outside of the body of tile 1 is seted up with multiple heat dissipation holes 2, effectively increases the heat dissipation area, accelerates the conduction and emission of internal temperature to improve the working stability of the body of tile 1. The front end of the body of tile 1 is seted up with flow oil groove 3, can let lubricating oil be evenly distributed on the surface of the body of tile 1 to reduce friction and prolong the service life of the body of tile 1. The front end both sides of the body of tile 1 are seted up with arc groove 4, and arc groove 4 can guide lubricating oil to the part needing lubrication, to guarantee the comprehensiveness of lubrication.

[0032] The front end both sides of the body of tile 1 are seted up with multiple oil storage grooves 5, and the setting of oil storage groove 5 can play the role of reserve when lubricating oil is insufficient, maintains the continuity of lubrication, further improves the lubrication effect. Oil storage groove 5 is communicated with flow oil groove 3 through the chute, can let lubricating oil flow freely between multiple grooves, improves the use efficiency of lubricating oil, ensures that the bearing bush still maintains good lubrication effect under high temperature environment. Multiple oil storage grooves 5 are communicated with arc groove 4 (reference Figure 3 ), for guiding lubricating oil, make lubricating oil flow more accurately, to improve the effectiveness of lubrication.

[0033] The oil storage tank 5 is connected with the heat dissipation hole 2 through multiple connection channels 6, which can dissipate heat during the flow of lubricating oil, thereby avoiding damage to the bearing bush caused by excessive temperature and improving the flow efficiency of the lubricating oil. The upper and lower ends of the bush body 1 are fixedly connected with extension blocks 7, which are used to combine with other parts to ensure stable installation and avoid loosening of the bearing bush during operation. The two sides of the bush body 1 are fixedly connected with limiting blocks 8, which work together with the extension blocks 7 to keep the bush body 1 stable after installation and avoid deviation, thereby improving the safety and reliability of the bearing bush during engine operation.

[0034] Reference Figure 4 The inside of the bush body 1 is provided with a high-temperature-resistant assembly for improving strength, which includes a reinforcing layer 9 fixedly connected to the inner wall of the bush body 1, increasing the thermal deformation resistance of the overall structure and ensuring the structural integrity under high temperature conditions. The front end of the reinforcing layer 9 is fixedly connected with a main body layer 10 made of aluminum alloy, which has excellent thermal conductivity and can quickly transfer heat in the bearing bush to the heat dissipation hole 2, thereby improving the heat dissipation effect.

[0035] The reinforcing layer 9 is made of silicon carbide material, which has high hardness and high temperature stability, effectively enhancing the wear resistance and oxidation resistance of the bush body 1 and ensuring its service life under high temperature and high load conditions. The front end of the main body layer 10 is fixedly connected with a temperature-resistant layer 11 made of graphite material, which has good lubricity and thermal conductivity, further reducing frictional resistance during operation of the bearing bush while improving heat dissipation efficiency. The front end of the temperature-resistant layer 11 is fixedly connected with an outer coating layer 12, which is a ceramic coating that can further enhance high-temperature resistance and protect the internal structure from thermal shock, thereby improving the overall heat resistance and durability of the bush body 1.

[0036] Working principle: The design of the high-temperature-resistant self-lubricating engine bearing bush enhances its stability and self-lubricating performance under high temperature conditions through a series of innovative structures. Its main structure is the bush body 1, which is externally designed with multiple heat dissipation holes 2 to increase the heat dissipation surface area, accelerate the conduction and dissipation of internal heat, thereby reducing the temperature of the bearing bush in high-temperature working environment and ensuring stable operation.

[0037] The front end of the bush body 1 is provided with a flow-through oil groove 3 that can evenly distribute lubricating oil to the surface of the bearing bush, reducing friction, improving lubrication efficiency, and prolonging the service life of the bearing bush. The arc-shaped grooves 4 on both sides of the front end guide the lubricating oil to ensure that it flows to the key parts that need lubrication, providing comprehensive lubrication effect. The multiple oil storage tanks 5 at the front end of the bush body 1 serve as a reserve when the lubricating oil is insufficient, ensuring the continuity of lubrication and effectively improving the durability of the lubricating assembly.

[0038] The high-temperature-resistant components inside the bushing 1 further enhance the strength and heat resistance of the bushing. First, the reinforcing layer 9 made of silicon carbide is fixedly connected to the inner wall of the bushing 1. Silicon carbide has high hardness and excellent heat resistance, enabling the bushing to maintain structural integrity under high temperature and high pressure and improving overall wear resistance. The main body layer 10 fixedly connected to the front end of the reinforcing layer 9 is made of aluminum alloy, and the high thermal conductivity of aluminum alloy accelerates the outward transfer of heat in the bushing, improving the heat dissipation effect.

[0039] At the front end of the main body layer 10, a temperature-resistant layer 11 made of graphite material is provided. Graphite has self-lubricating properties, which can effectively reduce frictional resistance, and also has good heat conductivity, enabling the bushing to maintain a suitable temperature under high temperature conditions. In addition, the outside of the temperature-resistant layer 11 is coated with ceramic, and the high-temperature resistance of the ceramic material protects the internal structure from the impact of heat, thereby significantly improving the overall durability and stability of the bushing.

[0040] Finally, it should be noted that the above description is only a preferred embodiment of the present application and is not intended to limit the present application. Although the present application has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent replacements to some technical features, as long as they are within the spirit and principles of the present application. Any modification, equivalent replacement, improvement, etc. made within the spirit and principles of the present application shall be included in the protection scope of the present application.

Claims

1. A high temperature resistant self-lubricating engine bearing shell comprising a shell body (1), characterised in that: The outer part of the tile body (1) is provided with a plurality of heat dissipation holes (2), the front end of the tile body (1) is provided with a circulating oil groove (3), the front end of the tile body (1) is provided with an arc-shaped groove (4) on both sides, a plurality of oil storage grooves (5) are arranged on both sides of the front end of the tile body (1), the upper and lower ends of the tile body (1) are fixedly connected with extension blocks (7), and the two sides of the tile body (1) are fixedly connected with limiting blocks (8), and the inner part of the tile body (1) is provided with a high-temperature-resistant assembly for improving strength.

2. The high temperature resistant self-lubricating engine bearing shell of claim 1, wherein: The high-temperature-resistant assembly comprises a reinforcing layer (9), the outer part of the reinforcing layer (9) is fixedly connected to the inner wall of the tile body (1), the front end of the reinforcing layer (9) is fixedly connected with a main body layer (10), the front end of the main body layer (10) is fixedly connected with a temperature-resistant layer (11), and the front end of the temperature-resistant layer (11) is fixedly connected with an outer coating layer (12).

3. The high temperature resistant self-lubricating engine bearing shell of claim 1, wherein: The oil storage groove (5) is connected with the heat dissipation hole (2) through a plurality of connecting channels (6), so that the flow efficiency of lubricating oil is improved.

4. The high temperature resistant self-lubricating engine bearing shell of claim 1, wherein: A plurality of the oil storage grooves (5) are communicated with the arc-shaped grooves (4) and are used for guiding lubricating oil.

5. The high temperature resistant self-lubricating engine bearing shell of claim 1, wherein: The extension blocks (7) and the limiting blocks (8) are used for installing and positioning the tile body (1), so that the tile body (1) is stable.

6. The high temperature resistant self-lubricating engine bearing shell of claim 2, wherein: The reinforcing layer (9) is silicon carbide, and the main body layer (10) is an aluminum alloy.

7. The high temperature resistant self-lubricating engine bearing shell of claim 2, wherein: The temperature-resistant layer (11) is graphite, and the outer coating layer (12) is a ceramic coating.

8. The high temperature resistant self-lubricating engine bearing shell of claim 1, wherein: The oil storage groove (5) is communicated with the circulating oil groove (3) through a chute, and the use efficiency of lubricating oil is further improved.

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