Combined splicing type engine bearing bush

By combining components such as ring columns and assembly mechanisms, the design of modular engine bearings solves the shortcomings of engine bearings in terms of installation convenience and precision, achieving rapid installation and high-precision connection, thereby improving the reliability and durability of the engine.

CN224260736UActive Publication Date: 2026-05-19DAFENG YAODUN WELFARE DECORATIVE MATERIALS FACTORY
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
DAFENG YAODUN WELFARE DECORATIVE MATERIALS FACTORY
Filing Date
2025-06-20
Publication Date
2026-05-19

AI Technical Summary

Technical Problem

Existing engine bearings are insufficient in terms of ease of installation and precision. Especially in scenarios where the internal space of the engine is compact, the split bearing splicing structure is difficult to guarantee high-precision fit, resulting in abnormal wear and increased noise, which affects the reliability and durability of the engine.

Method used

The engine bearing adopts a modular splicing design. Through the design of ring column, assembly mechanism, splicing mechanism, transition mechanism and linkage mechanism, it can achieve rapid installation and high-precision connection. The combination of components such as top ring, docking plate, long screw and other components ensures a stable connection and precise docking between the components.

Benefits of technology

It enables rapid installation and high-precision connection of engine bearings, reduces assembly difficulty, improves engine reliability and durability, and reduces material waste and maintenance costs.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to the technical field of engine bearing bushes, and discloses a combined splicing type engine bearing bush which comprises an annular column, the outer wall of the annular column is fixedly connected with an assembling mechanism, the inner wall of the assembling mechanism is provided with a middle column, the bottom of the assembling mechanism is fixedly connected with a splicing mechanism, and the middle column is provided with a middle column. The bottom of the splicing mechanism is in threaded connection with a transition mechanism, the bottom of the transition mechanism is fixedly connected with a linkage mechanism, the assembling mechanism comprises a top ring, the inner wall of the top ring is fixed to the outer wall of the middle column, and the outer wall of the top ring is fixedly connected with a bearing column. In the utility model, during butt joint, the top ring at the top of the middle column is spliced, the bottom ring is connected with the bottom of the middle column, and the bearing column and the top ring are assembled by the threaded column I, so that the middle column is connected with the ring column, and the bottom of the threaded column I is fixed with the fixing sheet on the outer wall of the ring column for further stable connection; the first outer wall rotating plate is used for being assembled with a bottom splicing mechanism.
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Description

Technical Field

[0001] This utility model relates to the field of engine bearing technology, and in particular to a combined splicing type engine bearing. Background Technology

[0002] In the engine's operating system, the bearing shell plays a crucial role. As the part that directly contacts the journal of the sliding bearing, its quality directly affects the overall performance of the engine. Bearing shells are generally made of wear-resistant materials such as bronze and friction-reducing alloys, and must have an extremely smooth inner surface to ensure that a stable and effective oil film can be formed between the bearing shell and the journal, so as to achieve stable support for the shaft and greatly reduce friction loss and surface wear. The oil film can also absorb a certain amount of vibration, ensuring the smooth operation of the engine.

[0003] Traditional engine bearings are integral bearings, which are relatively simple to manufacture. However, during transportation and storage, their large size and fixed shape occupy a lot of space and are easily damaged by bumps. During installation, the compact internal space of the engine significantly increases the difficulty of integral installation. Once local wear and damage occur during use, the entire bearing must be replaced, which not only wastes materials but also results in high maintenance costs. Existing split bearings have improved installation convenience, requiring no large installation space, making them particularly suitable for scenarios with compact internal engine space and reducing assembly difficulty. However, the common split bearing splicing structure is relatively simple, and it is difficult to ensure high-precision fit at the splice. Under long-term high-load operation of the engine, the splice gap is prone to unevenness and loosening, resulting in a decrease in the fit accuracy between the bearing and the journal, causing abnormal wear, increased noise, and even bearing damage, seriously affecting the reliability and durability of the engine. Utility Model Content

[0004] To overcome the above shortcomings, this utility model provides a modular engine bearing, which aims to improve the problem of the inability to install quickly in the prior art.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: a combined splicing type engine bearing, including a ring column, an assembly mechanism fixedly connected to the outer wall of the ring column, a center column provided on the inner wall of the assembly mechanism, a splicing mechanism fixedly connected to the bottom of the assembly mechanism, a transition mechanism threadedly connected to the bottom of the splicing mechanism, and a linkage mechanism fixedly connected to the bottom of the transition mechanism.

[0006] The assembly mechanism includes a top ring, the inner wall of which is fixed to the outer wall of the center column. A receiving column is fixedly connected to the outer wall of the top ring. A threaded column is fixedly connected to the inner wall of the receiving column. A bottom ring is fixedly connected to the outer wall of the threaded column. A fixing piece is fixedly connected to the bottom of the bottom ring. A locking assembly is fixedly connected to the outer wall of the ring column. A locking groove is provided on the inner wall of the center column.

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

[0008] The splicing mechanism includes a docking plate, the top of which is fixed to the bottom of a ring column. The outer wall of the docking plate is provided with a connecting component and a locking component. A semi-cylinder is engaged at the bottom of the docking plate. A rotating shaft is rotatably connected to the outer wall of the semi-cylinder. A rotating plate is fixedly connected to the outer wall of the rotating shaft. A combination component is engaged at the outer wall of the rotating plate. A semi-cylinder is engaged at the bottom right side of the docking plate. A docking plate is fixedly connected to the bottom of the semi-cylinder. A docking frame is fixedly connected to the bottom of the docking plate.

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

[0010] The transition mechanism includes a long screw, which is fixed to the bottom of the docking plate, and the outer wall of the long screw is threadedly connected to the connecting plate.

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

[0012] The engaging assembly includes a fixing plate, which is disposed on the outer wall of the ring column, and a rotating plate is rotatably connected to the outer wall of the fixing plate.

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

[0014] The connecting assembly includes an L-shaped plate, the outer wall of which is fixed to the outer wall of the mating plate, and a fixing block is fixedly connected to the edge of the outer wall of the mating plate.

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

[0016] The positioning assembly includes a docking groove, which is disposed on the top of the docking plate, and the outer wall of the docking plate is provided with an annular groove.

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

[0018] The assembly includes a second fixing plate, the outer wall of which is fixed to a second semi-cylinder, and a pin is engaged with the outer wall of the second fixing plate.

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

[0020] The linkage mechanism includes a triangular disk, which is fixed to the outer wall of the long screw, and a fixing ring is fixedly connected to the bottom of the triangular disk.

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

[0022] 1. In this utility model, during docking, the top ring at the top of the center column is spliced ​​together, the bottom ring is connected to the bottom of the center column, and then the receiving column and the top ring are assembled using a threaded column to connect the center column and the ring column. Next, the connection between the ring column and the center column is further secured by fixing the bottom of the threaded column to the fixing plate on the outer wall of the ring column. In addition, a fixing plate is provided on the outer wall of the ring column, and a rotating plate on its outer wall is used for assembly with the bottom splicing mechanism.

[0023] 2. In this utility model, after the engaging assembly and the connecting assembly at the top of the docking plate are rotated and connected, the docking plate is connected to the ring column. The docking groove at the top of the docking plate is connected to the protruding bottom of the ring column, and the ring groove on its outer wall connects semi-cylinder one and semi-cylinder two. The outer wall of semi-cylinder one is connected to the fixing plate two on the outer wall of semi-cylinder two through a rotating shaft, and the docking point is fixed with a pin to achieve quick installation. Attached Figure Description

[0024] Figure 1 This is a perspective view of the front side of the center column of a combined splicing type engine bearing according to the present invention.

[0025] Figure 2 This is a partial structural disassembly view of the triangular disc of a combined splicing type engine bearing proposed in this utility model;

[0026] Figure 3 This is a partial structural diagram of the annular column of a combined splicing type engine bearing proposed in this utility model;

[0027] Figure 4 This is a partial structural breakdown diagram of a semi-cylindrical two-part structure of a combined splicing type engine bearing proposed in this utility model.

[0028] Figure 5 This is a partial structural disassembly diagram of the docking frame for a combined splicing type engine bearing proposed in this utility model.

[0029] Legend:

[0030] 1. Ring column; 2. Assembly mechanism; 201. Top ring; 202. Supporting column; 203. Threaded column one; 204. Bottom ring; 205. Fixing plate; 206. Engaging assembly; 2061. Fixing plate one; 2062. Rotating plate one; 207. Slot; 3. Splicing mechanism; 301. Butt joint plate; 302. Connecting assembly; 3021. L-shaped plate; 3022. Fixing block; 303. Positioning assembly; 3031 3032. Annular groove; 304. Semi-cylinder one; 305. Rotating shaft; 306. Rotating plate two; 307. Semi-cylinder two; 308. Combined assembly; 3081. Fixing plate two; 3082. Pin; 309. Connecting plate; 310. Connecting bracket; 4. Transition mechanism; 401. Connecting plate; 402. Long screw; 5. Center column; 6. Linkage mechanism; 601. Triangular plate; 602. Fixing ring. Detailed Implementation

[0031] 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.

[0032] Please see the appendix Figure 1 - Appendix Figure 3 An embodiment of this utility model is provided: a combined splicing engine bearing, including a ring column 1, an assembly mechanism 2 fixedly connected to the outer wall of the ring column 1, a center column 5 provided on the inner wall of the assembly mechanism 2, a splicing mechanism 3 fixedly connected to the bottom of the assembly mechanism 2, a transition mechanism 4 threadedly connected to the bottom of the splicing mechanism 3, and a linkage mechanism 6 fixedly connected to the bottom of the transition mechanism 4.

[0033] The assembly mechanism 2 includes a top ring 201, the inner wall of which is fixed to the outer wall of the middle column 5. A receiving column 202 is fixedly connected to the outer wall of the top ring 201. A threaded column 203 is fixedly connected to the inner wall of the receiving column 202. A bottom ring 204 is fixedly connected to the outer wall of the threaded column 203. A fixing piece 205 is fixedly connected to the bottom of the bottom ring 204. A locking assembly 206 is fixedly connected to the outer wall of the ring column 1. A slot 207 is provided on the inner wall of the middle column 5.

[0034] Specifically, the outer wall of the ring column 1 is connected to an assembly mechanism 2 by a robust fixing method. A central column 5 is cleverly set on the inner wall of the assembly mechanism 2 for support and positioning. The bottom of the assembly mechanism 2 is connected to a splicing mechanism 3 by a robust fixing method to ensure the stability of the overall structure. The bottom of the splicing mechanism 3 is connected to a transition mechanism 4 by a threaded connection. This threaded connection makes the connection tighter and easier to adjust. The bottom of the transition mechanism 4 is connected to a high-efficiency linkage mechanism 6 by a reliable fixing method to achieve coordinated operation between the components. The inner wall of the top ring 201 is firmly embedded in the outer wall of the central column 5 by a specific fixing method to ensure a stable and reliable connection between the two. The outer wall of the top ring 201 is tightly combined with the support column 202 by a precise fixing connection structure to form an integrated structure. The inner wall of the receiving column 202 is also securely connected to the inner wall of the threaded column 203 using a reliable fixing method to ensure its stability. The outer wall of the threaded column 203 is securely connected to the outer wall of the bottom ring 204 through a fixed connection method to form a whole. The bottom of the bottom ring 204 is securely connected to the top of the fixing plate 205 through a robust fixing method to further enhance the stability of the overall structure. In addition, the outer wall of the ring column 1 is securely connected to the outer wall of the engaging assembly 206 through a specific fixing method to ensure its normal function. The inner wall of the center column 5 is carefully provided with a slot 207 to precisely engage with other components, thereby achieving a tight fit and efficient operation of the overall structure.

[0035] Please see the appendix Figure 3 - Appendix Figure 5 The splicing mechanism 3 includes a docking plate 301, the top of which is fixed to the bottom of the ring column 1. The outer wall of the docking plate 301 is provided with a connecting component 302 and a locking component 303. The bottom of the docking plate 301 is engaged with a semi-cylinder 304. The outer wall of the semi-cylinder 304 is rotatably connected to a rotating shaft 305. The outer wall of the rotating shaft 305 is fixedly connected to a rotating plate 306. The outer wall of the rotating plate 306 is engaged with a combination component 308. The bottom right side of the docking plate 301 is engaged with a semi-cylinder 307. The bottom of the semi-cylinder 307 is fixedly connected to a docking plate 309. The bottom of the docking plate 309 is fixedly connected to a docking frame 310.

[0036] Specifically, the top of the docking plate 301 is firmly fixed to the bottom of the ring column 1 with fasteners, ensuring a stable and reliable connection between the two. The outer wall of the docking plate 301 is provided with a connecting component 302 for connecting with other parts. This connecting component 302 enables seamless docking with other structures. Furthermore, the outer wall of the docking plate 301 is also provided with a positioning and fixing component 303, which can precisely lock the relevant components, ensuring the stability of the overall structure. The bottom of the docking plate 301 cleverly engages with a semi-cylinder 304. The outer wall of the semi-cylinder 304 is connected to the rotating shaft 305 via a rotating connection device, allowing the rotating shaft 305 to rotate within a certain range. The rotating shaft 305 is flexibly rotated within its range, and a rotating plate 306 is fixedly connected to the outer wall of the rotating shaft 305. A combination component 308 for further expanding functions is engaged on the outer wall of the rotating plate 306, which enhances the versatility and practicality of the entire device. At the same time, a semi-cylinder 307 is also engaged on the bottom right side of the docking plate 301. The bottom of the semi-cylinder 307 is firmly fixedly connected to the docking plate 309 by fasteners, ensuring the stability and reliability of the docking plate 309. The bottom of the docking plate 309 is further fixedly connected to the docking frame 310, which provides solid support for the entire structure, ensuring that the entire device is stable and reliable during use and is not prone to displacement or deformation.

[0037] Please see the appendix Figure 1 - Appendix Figure 3 The transition mechanism 4 includes a long screw 402, which is fixed to the bottom of the docking plate 309. The outer wall of the long screw 402 is threadedly connected to the connecting plate 401. The engaging assembly 206 includes a fixing plate 2061, which is disposed on the outer wall of the ring column 1. A rotating plate 2062 is rotatably connected to the outer wall of the fixing plate 2061. The connecting assembly 302 includes an L-shaped plate 3021, whose outer wall is fixed to the outer wall of the docking plate 301. A fixing block 3022 is fixedly connected to the edge of the outer wall of the docking plate 301.

[0038] Specifically, the long screw 402 is firmly fixed to the bottom of the docking plate 309 to ensure its stability. The outer wall of the long screw 402 is tightly connected to the connecting plate 401 by means of threads, forming a reliable connection structure. The engaging assembly 206 is mainly composed of a fixing plate 2061, which is set on the outer wall of the ring column 1 to ensure its positional accuracy. The outer wall of the fixing plate 2061 is connected to the rotating plate 2062 by means of rotational connection, so that the rotating plate 2062 can rotate flexibly. The connecting assembly 302 includes an L-shaped plate 3021. The outer wall of the L-shaped plate 3021 is firmly fixed to the outer wall of the docking plate 301 to ensure its positional stability. In addition, a fixing block 3022 is fixedly connected to the edge of the outer wall of the docking plate 301, further enhancing the stability and reliability of the entire connecting assembly 302.

[0039] Please see the appendix Figure 3 - Appendix Figure 5 The locking assembly 303 includes a docking groove 3031, which is located on the top of the docking plate 301. The outer wall of the docking plate 301 is provided with an annular groove 3032. The combination assembly 308 includes a fixing plate 3081, the outer wall of which is fixed on a semi-cylinder 307. A pin 3082 is engaged on the outer wall of the fixing plate 3081. The linkage mechanism 6 includes a triangular disk 601, which is fixed on the outer wall of the long screw 402. A fixing ring 602 is fixedly connected to the bottom of the triangular disk 601.

[0040] Specifically, the docking groove 3031 is located at the top of the docking plate 301 to ensure accurate functioning. Meanwhile, the outer wall of the docking plate 301 is specially provided with an annular groove 3032, which provides additional structural support and connection functionality. Furthermore, the combined assembly 308 consists of multiple parts, including a key fixing plate 3081. The outer wall of the fixing plate 3081 is firmly fixed to the surface of the semi-cylinder 307, ensuring the stability and reliability of the entire assembly. In addition, a pin 3082 is cleverly engaged on the outer wall of the fixing plate 3081, enhancing the strength and ease of connection. On the other hand, the linkage mechanism 6 is a complex mechanical structure containing a triangular disc 601, which is securely fixed to the outer wall of the long screw 402, ensuring the precise operation of the linkage mechanism 6. Notably, a fixing ring 602 is also fixedly connected to the bottom of the triangular disc 601, further enhancing the stability and functionality of the entire linkage mechanism 6.

[0041] Working principle: During docking, the top ring 201 provided at the top of the center column 5 can be spliced, and the bottom ring 204 is connected to the bottom of the center column 5. The receiving column 202 and the top ring 201 are assembled using the threaded column 203, so that the center column 5 is connected to the ring column 1. The bottom of the threaded column 203 is fixed to the fixing plate 205 provided on the outer wall of the ring column 1, so that the ring column 1 is connected to the center column 5. The outer wall of the ring column 1 is provided with a fixing plate 2061, and the outer wall of the fixing plate 2061 has a rotating plate 2062 for assembly with the bottom splicing mechanism 3.

[0042] After the engaging assembly 206 and the connecting assembly 302 on the top of the docking plate 301 are rotated and docked, the docking plate 301 can be connected to the ring column 1. The docking plate 301 has a docking groove 3031 on its top, which connects to the protrusion at the bottom of the ring column 1. The outer wall of the docking plate 301 has an annular groove 3032, which connects the first semi-cylinder 304 and the second semi-cylinder 307. The outer wall of the first semi-cylinder 304 is connected to the second fixing plate 3081 on the outer wall of the second semi-cylinder 307 through a rotating shaft 305. The docking point is fixed with a pin 3082 to achieve a quick installation effect.

[0043] 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 composite splicing type engine bearing, comprising a ring post (1), characterized in that: An assembly mechanism (2) is fixedly connected to the outer wall of the ring column (1). A center column (5) is provided on the inner wall of the assembly mechanism (2). A splicing mechanism (3) is fixedly connected to the bottom of the assembly mechanism (2). A transition mechanism (4) is threadedly connected to the bottom of the splicing mechanism (3). A linkage mechanism (6) is fixedly connected to the bottom of the transition mechanism (4). The assembly mechanism (2) includes a top ring (201), the inner wall of which is fixed to the outer wall of the middle column (5), a receiving column (202) is fixedly connected to the outer wall of the top ring (201), a threaded column (203) is fixedly connected to the inner wall of the receiving column (202), a bottom ring (204) is fixedly connected to the outer wall of the threaded column (203), a fixing piece (205) is fixedly connected to the bottom of the bottom ring (204), a locking assembly (206) is fixedly connected to the outer wall of the ring column (1), and a slot (207) is provided on the inner wall of the middle column (5).

2. The combined splicing type engine bearing according to claim 1, characterized in that: The splicing mechanism (3) includes a docking plate (301), the top of which is fixed to the bottom of the ring column (1). The outer wall of the docking plate (301) is provided with a connecting component (302). The outer wall of the docking plate (301) is provided with a locking component (303). The bottom of the docking plate (301) is engaged with a semi-cylinder (304). The outer wall of the semi-cylinder (304) is rotatably connected to a rotating shaft (305). The outer wall of the rotating shaft (305) is fixedly connected to a rotating plate (306). The outer wall of the rotating plate (306) is engaged with a combination component (308). The bottom right side of the docking plate (301) is engaged with a semi-cylinder (307). The bottom of the semi-cylinder (307) is fixedly connected to a docking plate (309). The bottom of the docking plate (309) is fixedly connected to a docking frame (310).

3. The combined splicing type engine bearing according to claim 1, characterized in that: The transition mechanism (4) includes a long screw (402) which is fixed to the bottom of the docking plate (309), and the outer wall of the long screw (402) is threadedly connected to the connecting plate (401).

4. The combined splicing type engine bearing according to claim 1, characterized in that: The engaging assembly (206) includes a fixing plate (2061), which is disposed on the outer wall of the ring column (1), and a rotating plate (2062) is rotatably connected to the outer wall of the fixing plate (2061).

5. The combined splicing type engine bearing according to claim 2, characterized in that: The connecting assembly (302) includes an L-shaped plate (3021), the outer wall of which is fixed to the outer wall of the mating plate (301), and a fixing block (3022) is fixedly connected to the edge of the outer wall of the mating plate (301).

6. The combined splicing type engine bearing according to claim 2, characterized in that: The positioning assembly (303) includes a docking groove (3031), which is disposed on the top of the docking plate (301), and the outer wall of the docking plate (301) is provided with an annular groove (3032).

7. A combined splicing type engine bearing according to claim 2, characterized in that: The assembly (308) includes a second fixing plate (3081), the outer wall of which is fixed to a second semi-cylinder (307), and a pin (3082) is engaged with the outer wall of the second fixing plate (3081).

8. The combined splicing type engine bearing according to claim 1, characterized in that: The linkage mechanism (6) includes a triangular disk (601), which is fixed to the outer wall of the long screw (402), and a fixing ring (602) is fixedly connected to the bottom of the triangular disk (601).