Modularized engine connecting rod

Abstract

The utility model relates to the technical field of engine connecting rods, and discloses a modularized engine connecting rod which comprises a connecting rod small head arranged at one end of a rod body, a connecting rod large head arranged at the other end of the rod body, a second cover tile arranged on the inner side of the connecting rod small head, a limiting ring arranged on one side of the second cover tile, a locking rod tightly pressed on one side of the second cover tile and in threaded connection with the connecting rod small head. Therefore, the second cover tile can directly make contact with the outer wall of the piston pin, friction between the inner wall of the small end of the connecting rod and the outer wall of the piston pin is effectively reduced, meanwhile, movement of the second cover tile can be effectively limited, and the second cover tile is prevented from deviating or falling off in the rotating process of the connecting rod.

Description

Technical Field

[0001] This utility model relates to the field of engine connecting rod technology, specifically a modular engine connecting rod. Background Technology

[0002] The connecting rod is an important component connecting the crankshaft and the piston. The connecting rod is generally a one-piece unit, but the big end of the connecting rod that connects to the crankshaft is usually separate to facilitate a better connection with the crankshaft. The small end of the connecting rod is usually directly connected to the piston through the piston pin. During long-term rotation, the inner wall of the small end of the connecting rod is constantly in friction with the outer wall of the piston pin. During normal wear, the connecting rod needs to be replaced periodically, and replacing the entire connecting rod increases maintenance costs.

[0003] Therefore, we propose a modular engine connecting rod. Utility Model Content

[0004] The purpose of this invention is to provide a modular engine connecting rod to solve the problem mentioned in the background art, where the inner wall of the small end of the connecting rod is constantly rubbing against the outer wall of the piston pin during long-term rotation, requiring periodic replacement of the connecting rod during normal wear, which increases maintenance costs.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a modular engine connecting rod, comprising a connecting rod body, the connecting rod body comprising a rod body, a connecting rod small end at one end of the rod body, a connecting rod large end at the other end of the rod body, a cover plate on the inner side of the connecting rod large end, a cover plate two on the inner side of the connecting rod small end, a limiting ring on one side of the cover plate two, and a locking rod on one side of the cover plate two, the locking rod being threadedly connected to the connecting rod small end.

[0006] Preferably, a limiting groove is provided on one side of the small end of the connecting rod, and a limiting ring is provided inside the limiting groove.

[0007] Preferably, the locking rod is hollow inside, and one end of the locking rod is tightly pressed against the outer wall of the cover tile.

[0008] Preferably, a drainage groove is provided in the middle of the second cover tile, and a locking rod is connected to the drainage groove.

[0009] Preferably, the material of the cover tile is low-carbon steel.

[0010] Preferably, the limiting ring has positioning grooves at both ends, and the limiting ring is tightly pressed against one side of the cover tile.

[0011] Compared with the prior art, the beneficial effects of this utility model are:

[0012] This utility model features a connecting rod small end at one end and a connecting rod large end at the other end. A cover plate is provided inside the connecting rod small end, and a limiting ring is provided on one side of the cover plate. The cover plate tightly presses against a locking rod, and the locking rod is threadedly connected to the connecting rod small end. This allows the cover plate to directly contact the outer wall of the piston pin, effectively reducing the friction between the inner wall of the connecting rod small end and the outer wall of the piston pin. At the same time, it effectively restricts the movement of the cover plate, preventing it from shifting or falling off during the rotation of the connecting rod. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the overall disassembled structure of this utility model;

[0014] Figure 2 This is a schematic diagram of the two-part structure of the cover tile of this utility model;

[0015] Figure 3 This is a schematic diagram of the overall front view of this utility model;

[0016] In the diagram: 1. Connecting rod body; 2. Rod body; 3. Connecting rod small end; 4. Connecting rod large end; 5. Cover plate; 6. Cover plate II; 7. Limiting ring; 8. Locking rod. Detailed Implementation

[0017] 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. Example

[0018] Please see Figures 1-3 The diagram illustrates a modular engine connecting rod, comprising a connecting rod body 1, a rod body 2, a connecting rod small end 3 at one end of the rod body 2, and a connecting rod large end 4 at the other end of the rod body 2. A cover 5 is provided inside the connecting rod large end 4, and a second cover 6 is provided inside the connecting rod small end 3. A limiting ring 7 is provided on one side of the second cover 6, and a locking rod 8 is provided on one side of the second cover 6. The locking rod 8 is threadedly connected to the connecting rod small end 3. This invention, by having a connecting rod small end at one end of the rod body and a connecting rod large end at the other end, and a second cover 7 inside the connecting rod small end, with a limiting ring on one side of the second cover 7, tightly presses the locking rod against the second cover 7. The locking rod is threadedly connected to the connecting rod small end, allowing the second cover 7 to directly contact the outer wall of the piston pin. This effectively reduces friction between the inner wall of the connecting rod small end and the outer wall of the piston pin, while also effectively restricting the movement of the second cover 7, preventing it from shifting or falling off during connecting rod rotation.

[0019] Furthermore, a limiting groove is provided on one side of the small end 3 of the connecting rod, and a limiting ring 7 is provided inside the limiting groove. By providing a limiting groove on one side of the small end of the connecting rod and cleverly setting a limiting ring inside the limiting groove, the movement of the internal components of the small end of the connecting rod is effectively restricted, which can prevent the internal components from shifting or falling off, thereby ensuring the stable operation of the connecting rod.

[0020] Furthermore, the locking rod 8 is hollow inside, and one end of the locking rod 8 is tightly pressed against the outer wall of the cover tile 2 6. When the locking rod is tightly pressed against the outer wall of the cover tile 2, the hollow design allows the locking rod to maintain sufficient strength and stability while reducing its own weight. Secondly, the tight pressing of one end of the locking rod against the outer wall of the cover tile 2 ensures a firm connection between the two and prevents loosening or falling off due to vibration or friction.

[0021] Furthermore, a drainage groove is provided in the middle of the second cover 6, and a locking rod 8 is connected to the drainage groove. The drainage groove is provided on the outer surface of the second cover, which can effectively guide the lubricating oil to dissipate heat to the small end of the connecting rod, thereby preventing local overheating and protecting the connecting rod and piston pin from high temperature damage.

[0022] Furthermore, the connecting rod 2 is made of low-carbon steel. Low-carbon steel possesses excellent strength and toughness, enabling it to withstand the pressure and impact generated during engine operation. This ensures that the connecting rod 2 is less prone to deformation or breakage during long-term use, guaranteeing the stability and reliability of the connecting rod.

[0023] Furthermore, positioning grooves are provided at both ends of the limiting ring 7. The limiting ring 7 is tightly pressed against one side of the cover tile 2 6. Through the positioning grooves provided at both ends of the limiting ring and its tight pressing against one side of the cover tile 2, the positioning grooves ensure that the limiting ring can be quickly installed inside the small end of the connecting rod and that the limiting ring can be accurately placed in the predetermined position, avoiding performance degradation or damage caused by position deviation.

[0024] In this solution, the workflow is as follows: First, place the cover plate inside the connecting rod big end to ensure a tight fit, providing necessary support and protection for the connecting rod big end.

[0025] Then install the second cover plate on the inside of the small end of the connecting rod. Note that the second cover plate is made of low carbon steel, which has good strength and thermal conductivity.

[0026] Place the second cover plate inside the small end of the connecting rod and ensure its stability. Then, press the limiting ring into the limiting groove on one side of the small end of the connecting rod. The positioning grooves at both ends of the limiting ring will ensure its accurate position in the small end of the connecting rod.

[0027] Finally, one end of the locking rod is pressed tightly against the outer wall of the cover tile. The locking rod has a hollow interior, which reduces weight while maintaining sufficient strength.

[0028] The locking rod is fixed to the small end of the connecting rod by a threaded connection, which further enhances the stability of the internal structure of the small end of the connecting rod and completes the assembly.

[0029] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0030] 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 modular engine connecting rod, comprising a connecting rod body (1), characterized in that: The main body of the connecting rod (1) includes a rod body (2), one end of the rod body (2) is provided with a small end of the connecting rod (3), the other end of the rod body (2) is provided with a large end of the connecting rod (4), the inner side of the large end of the connecting rod (4) is provided with a cover plate (5), the inner side of the small end of the connecting rod (3) is provided with a second cover plate (6), one side of the second cover plate (6) is provided with a limiting ring (7), one side of the second cover plate (6) is provided with a locking rod (8), and the locking rod (8) is threadedly connected to the small end of the connecting rod (3).

2. A modular engine connecting rod according to claim 1, characterized in that: A limiting groove is provided on one side of the small end (3) of the connecting rod, and a limiting ring (7) is provided inside the limiting groove.

3. A modular engine connecting rod according to claim 2, characterized in that: The locking rod (8) is hollow inside, and one end of the locking rod (8) is tightly pressed against the outer wall of the cover tile (6).

4. A modular engine connecting rod according to claim 3, characterized in that: A drainage groove is provided in the middle of the cover tile (6), and a locking rod (8) is connected to the drainage groove.

5. A modular engine connecting rod according to claim 4, characterized in that: The material of the cover tile 2 (6) is low carbon steel.

6. A modular engine connecting rod according to claim 1, characterized in that: The limiting ring (7) has positioning grooves at both ends, and the limiting ring (7) is tightly pressed against one side of the cover tile (6).

Images