Automobile engine bearing bush structure

Abstract

The utility model relates to the technical field of engine bearing bushes, and discloses an automobile engine bearing bush structure which comprises two bearing caps, two fixing blocks are fixedly connected to the outer portions of the bearing caps, a rotating block is rotationally connected to the close sides of every two fixing blocks, and bolts are fixedly connected to the upper side and the lower side of each rotating block. The outer portions of the bolts are sleeved with strong springs, the upper ends and the lower ends of the strong springs are both fixedly connected with gaskets, the outer portions of the bolts are in threaded connection with nuts, the close sides of the two bearing covers are both fixedly connected with buffering assemblies used for damping, and the close sides of the two buffering assemblies are both fixedly connected with bearing bush bodies. And a plurality of rollers are movably connected to the interiors of the close sides of the two bearing bush bodies. According to the bearing bush, the bearing cover can be effectively prevented from loosening due to vibration, impact and the like, so that the stability of the bearing bush in the working process is ensured, and the service life of the bearing bush is prolonged.

Description

Technical Field

[0001] This utility model relates to the field of engine bearing technology, and in particular to a structure for an automobile engine bearing. Background Technology

[0002] The car engine is the core component that provides power to the car, and the bearing structure is an important support and lubrication structure inside the engine. The bearing structure supports the crankshaft inside, reduces friction, bears load and dissipates heat, and plays a key role in ensuring the normal operation of the car engine.

[0003] In existing technologies, some bearing structures typically use bearing caps to fix the bearings. The process involves fixing the bearings inside the bearing caps and then using tools to tighten bolts and nuts to secure the two bearing caps together, thus installing the two bearings together. During engine operation, vibrations and impacts can cause the bearing caps to loosen, preventing the bearings from maintaining uniform and stable support. This results in uneven pressure distribution between the bearings and the crankshaft, causing severe abrasive wear and reducing the service life of the bearings. Therefore, to address these shortcomings, a new bearing structure for automotive engines is proposed. Utility Model Content

[0004] The purpose of this utility model is to address the shortcomings of existing technologies by proposing a new automobile engine bearing structure. This structure aims to improve the problem that during engine operation, vibration and impact can cause the bearing cap to loosen, resulting in the bearing failing to maintain uniform and stable support, causing severe abrasive wear, and reducing the service life of the bearing.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a bearing structure for an automobile engine, comprising two bearing caps, two fixed blocks fixedly connected to the outside of each bearing cap, a rotating block rotatably connected to the adjacent side of each pair of fixed blocks, bolts fixedly connected to the upper and lower sides of each rotating block, a strong spring sleeved on the outside of each bolt, washers fixedly connected to the upper and lower ends of each strong spring, and a nut threaded onto the outside of each bolt, shock-absorbing buffer components fixedly connected to the adjacent sides of each of the two bearing caps, bearing bodies fixedly connected to the adjacent sides of each of the two buffer components, multiple rollers movably connected to the adjacent sides of each of the two bearing bodies, an oil reservoir opened inside the bearing body, and an oil inlet hole opened on the front side of the bearing body.

[0006] Furthermore, a connecting rod is fixedly connected to the outside of the top bearing cap, and a connecting ring is fixedly connected to the inside of the top end of the connecting rod.

[0007] Furthermore, the buffer assembly includes gaskets, with the distant sides of the two gaskets respectively fixedly connected to the adjacent sides of the two bearing caps, and multiple buffer pads fixedly connected to the adjacent sides of the two gaskets respectively fixedly connected to the distant sides of the two bearing bodies.

[0008] Furthermore, the outer side of the buffer pad contacts the side of the bearing body near the washer ring, and the washer ring is made of rubber.

[0009] Furthermore, the washer on the side away from the nut is fixedly connected to one side of the fixing block.

[0010] Furthermore, the inside of the gasket is slidably connected to the outside of the bolt.

[0011] Furthermore, the washer on the side away from the fixing block comes into contact with one side of the nut.

[0012] Furthermore, the outer surface of the roller is in contact with the interior of the oil reservoir, and the outer surface of the roller is coated with a wear-resistant coating.

[0013] This utility model has the following beneficial effects:

[0014] 1. In this utility model, turning the rotating block causes the two bolts to tighten the two bearing caps together, and then the nuts are used to fix them. When the nuts are turned, the washers will also squeeze the strong spring, making the spring force fix the two bearing caps more tightly. This additional spring force increases the preload of the bearing cap connection, which can effectively prevent the bearing caps from loosening due to vibration, impact, etc., thereby ensuring the stability of the bearing bush during operation and extending the service life of the bearing bush.

[0015] 2. In this utility model, the combination of oil outlet and oil reservoir can improve the lubrication effect between the bearing and crankshaft, ensure that the lubricating oil is fully distributed on the contact surface, and with the assistance of rollers, improve the smoothness of crankshaft rotation, reduce friction and wear. Then, during engine operation, the bearing structure can be improved to buffer vibration and impact with the help of washers and buffer pads, ensuring the reliability of the bearing during operation. Attached Figure Description

[0016] Figure 1 This is a perspective view of a car engine bearing structure proposed in this utility model;

[0017] Figure 2 This is a schematic diagram of the connecting rod structure of an automobile engine bearing structure proposed in this utility model;

[0018] Figure 3 for Figure 2 Enlarged view of point A in the image;

[0019] Figure 4 for Figure 2 Enlarged view of point B in the image.

[0020] Legend:

[0021] 1. Bearing cap; 2. Connecting rod; 3. Fixing block; 4. Rotating block; 5. Bolt; 6. Strong spring; 7. Washer; 8. Nut; 9. Washer ring; 10. Buffer pad; 11. Bearing body; 12. Roller; 13. Oil reservoir; 14. 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] Reference Figures 1 to 3 This utility model provides an embodiment of an automotive engine bearing structure, comprising two bearing caps 1. These two bearing caps 1 are key support components in the entire bearing structure, serving to fix and protect internal components. A connecting rod 2 is fixedly connected to the outside of the top bearing cap 1. As an important component for engine power transmission, the connection between the connecting rod 2 and the bearing cap 1 ensures stability during power transmission. A connecting ring is fixedly connected to the inside of the top of the connecting rod 2, enhancing the stability of the connection between the connecting rod 2 and other components. Two fixing blocks 3 are fixedly connected to the outside of the bearing cap 1. The fixing blocks 3 are the basic structure for the subsequent installation and rotation of the rotating blocks 4, and are tightly connected to the bearing cap 1, ensuring the integrity of the structure. A rotating block 4 is rotatably connected to the adjacent side of every two fixing blocks 3. The design of the rotating blocks 4 facilitates installation and operation; rotation between the fixing blocks 3 enables the subsequent driving of bolts 5. Bolts 5 are fixedly connected to both the upper and lower sides of the rotating blocks 4. The bolts 5, as key components for connection and fastening, are fixed to the rotating blocks 4 and can rotate under the drive of the rotating blocks 4.

[0024] A high-strength spring 6 is fitted around the bolt 5. The spring 6 generates a strong elastic force when compressed, serving as a buffer and preload. Washers 7 are fixedly connected to both ends of the spring 6. The washers 7 protect the contact points between the spring and other components and also assist in the operation of the bolt 5. The washers 7 are internally slidably connected to the outside of the bolt 5. This sliding connection ensures smooth movement of the washers 7 during bolt 5 rotation and nut 8 tightening. The bolt 5 is externally threaded with a nut 8, which tightens by engaging with the bolt 5's threads. The washer 7 on the side furthest from the fixing block 3 contacts the side of the nut 8, while the side furthest from the nut 8 is fixedly connected to the side of the fixing block 3. This design allows the washers 7 to compress the high-strength spring 6 when the nut 8 is tightened, thereby increasing the preload. Shock-absorbing buffer assemblies are fixedly connected to adjacent sides of the two bearing caps 1. These buffer assemblies effectively reduce the impact of vibration and shock on the bearing structure during engine operation.

[0025] Reference Figure 1 , Figure 2 and Figure 4 The two buffer assemblies are each fixedly connected to a bearing body 11 on its adjacent side. The bearing body 11 is the component that directly contacts the crankshaft, and its performance directly affects the engine's operating efficiency and lifespan. The outer side of the buffer pad 10 contacts the side of the bearing body 11 closest to the washer ring 9. The buffer pad 10 plays a role in buffering and shock absorption, ensuring the stability of the bearing body 11 during operation. The washer ring 9 is made of rubber, which has good elasticity and buffering performance. The buffer assembly includes the washer ring 9. The two opposite sides of the two washer rings 9 are fixedly connected to the adjacent sides of the two bearing caps 1. This connection method allows the washer rings 9 to be firmly installed on the bearing caps 1, providing a basis for subsequent buffering work. Multiple buffer pads 10 are fixedly connected to the adjacent sides of the two washer rings 9. The multiple buffer pads 10 can buffer vibration and impact in different directions and positions. The two washer rings 9 are fixedly connected to the opposite sides of the two bearing bodies 11 respectively. This connection ensures a tight fit between the buffer assembly and the bearing body 11, which can effectively transmit vibration and impact to the buffer assembly for processing.

[0026] Multiple rollers 12 are movably connected to the interior of each of the two bearing bodies 11 on adjacent sides. These rollers 12 assist in crankshaft rotation and reduce friction. An oil reservoir 13 is provided inside each bearing body 11 to store lubricating oil, ensuring sufficient lubrication for both the bearing body 11 and the crankshaft during engine operation. The outer surface of the rollers 12 contacts the interior of the oil reservoir 13, allowing for thorough contact with the lubricating oil during rolling and further improving lubrication. The outer surface of the rollers 12 is coated with a wear-resistant coating, extending their service life and reducing wear. An oil inlet 14 is provided on the front side of each bearing body 11, serving as a channel for lubricating oil to enter the interior of the bearing body 11 and ensuring smooth flow of lubricating oil into the oil reservoir 13.

[0027] Working principle: First, by turning the rotating block 4, the rotating block 4 drives the bolts 5 on both sides to rotate. The bolts 5 rotate inside the nut 8. As the nut 8 tightens, it presses against the washer 7 on the side closest to it. The washer 7 slides outside the bolt 5, thereby compressing the strong spring 6. The elastic force generated by the strong spring 6 acts on the washer 7 on both sides, thereby increasing the preload of the connection between the two bearing caps 1, making the two bearing caps 1 more tightly fixed together. This effectively prevents the bearing caps 1 from loosening due to vibration, impact, etc. during engine operation, ensuring the stability of the bearing body 11 and thus extending the service life of the bearing.

[0028] When the engine is running, lubricating oil enters through the oil inlet 14 on the front side of the bearing body 11 and is stored and distributed through the oil reservoir 13 inside the bearing body 11. When the crankshaft rotates inside the bearing body 11, the lubricating oil in the oil reservoir 13 forms an oil film between the crankshaft and the bearing body 11, achieving lubrication. At the same time, multiple rollers 12, which are movably connected inside the bearing body 11 on the adjacent side, roll under the pressure of the crankshaft. The rollers 12 roll within the oil reservoir 13, and the wear-resistant coating on the outside of the rollers 12 helps reduce wear. Their rolling converts some of the sliding friction between the crankshaft and the bearing body 11 into rolling friction, further improving the smoothness of crankshaft rotation and reducing friction and wear.

[0029] When the engine generates vibration and impact, the buffer assembly on the adjacent side of the two bearing caps 1 comes into play. The washer ring 9 and the buffer pad 10 cooperate with each other. The washer ring 9 is fixed on the bearing cap 1, and the buffer pad 10 undergoes elastic deformation when subjected to vibration and impact, absorbing the vibration and impact energy from the engine. The washer ring 9 assists the buffer pad 10 in buffering through its own rubber material properties, ensuring the reliability of the bearing body 11 during operation and preventing the bearing body 11 from being damaged by vibration and impact.

[0030] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model 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 substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A bearing shell structure for an automotive engine comprising two bearing caps (1), characterized in that: The bearing cover (1) is externally fixedly connected to two fixing blocks (3). A rotating block (4) is rotatably connected to the adjacent side of each pair of fixing blocks (3). Bolts (5) are fixedly connected to the upper and lower sides of the rotating block (4). A strong spring (6) is sleeved on the outside of the bolt (5). Washers (7) are fixedly connected to the upper and lower ends of the strong spring (6). Nuts (8) are threaded onto the outside of the bolt (5). A shock-absorbing buffer assembly is fixedly connected to the adjacent side of the two bearing covers (1). A bearing shell body (11) is fixedly connected to the adjacent side of the two buffer assemblies. Multiple rollers (12) are movably connected to the adjacent side of the two bearing shell bodies (11). An oil reservoir (13) is opened inside the bearing shell body (11). An oil inlet hole (14) is opened on the front side of the bearing shell body (11).

2. The bearing shell structure for an automotive engine according to claim 1, wherein: A connecting rod (2) is fixedly connected to the outside of the top bearing cover (1), and a connecting ring is fixedly connected to the inside of the top of the connecting rod (2).

3. The engine bearing shell structure of claim 1, wherein: The buffer assembly includes a washer ring (9), with the far side of the two washer rings (9) fixedly connected to the near side of the two bearing caps (1), and multiple buffer pads (10) fixedly connected to the near side of the two washer rings (9), and the near side of the two washer rings (9) fixedly connected to the far side of the two bearing shell bodies (11).

4. The engine bearing shell structure of claim 3, wherein: The outer side of the buffer pad (10) is in contact with the side of the bearing body (11) near the washer ring (9), and the washer ring (9) is made of rubber.

5. The engine bearing shell structure of claim 1, wherein: The washer (7) on the side away from the nut (8) is fixedly connected to one side of the fixing block (3).

6. The engine bearing shell structure of claim 1, wherein: The inside of the gasket (7) is slidably connected to the outside of the bolt (5).

7. The engine bearing shell structure of claim 1, wherein: The washer (7) on the side away from the fixing block (3) is in contact with the side of the nut (8).

8. The engine bearing shell structure of claim 1, wherein: The outside of the roller (12) is in contact with the inside of the oil reservoir (13), and the outside of the roller (12) is coated with a wear-resistant coating.

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