High-wear-resistance engine connecting rod

Abstract

The utility model discloses a highly wear-resistant engine connecting rod, which belongs to the technical field of engine connecting rods, and is characterized in that two ends of a main body are respectively provided with a large connecting end and a small connecting end; a limiting convex ring is arranged on the inner wall of the large connecting end, and a bearing is movably mounted at the top of the limiting convex ring; a mounting cavity coaxial with the bearing is formed in the top of the large connecting end; a plurality of groups of screw rods are fixedly arranged at the top of the mounting cavity, a positioning cover for limiting the bearing is mounted in the mounting cavity, and a plurality of groups of insertion holes are formed in the positioning cover; and a nut for positioning is also arranged on the screw rod. According to the utility model, the bearing can be quickly mounted through the limiting convex ring and the positioning cover, and during mounting, the bearing is quickly positioned through the screw rod and the insertion hole firstly, and then the threaded ring is mounted. And when the threaded rings extrude the locking pieces, the multiple sets of locking pieces move towards the inner side and lock the limiting grooves in the threaded rods again, and through the design, the strength, the abrasion resistance and the practicability of the high-abrasion-resistance engine connecting rod are improved.

Description

Technical Field

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

[0002] The crankshaft and connecting rod mechanism is the main component of the engine for energy conversion and to realize the working cycle. When the engine crankshaft is rotated by external force, it drives the piston to reciprocate to draw in the combustible mixture and make the combustible mixture burn in the combustion chamber to do work, which in turn drives the piston to rotate the crankshaft, and the engine runs automatically, and the working cycle runs automatically.

[0003] Chinese patent application CN221824269U discloses a highly wear-resistant automotive engine connecting rod, comprising a large connecting end, a connecting rod body, and a small connecting end. The small connecting end is fixedly installed at one end of the connecting rod body. A wear-resistant connecting rod structure is provided on the outer side of the large connecting end. The wear-resistant connecting rod structure includes positioning blocks, anti-wear balls, and limiting blocks. Multiple positioning blocks are fixedly installed on the outer wall of the large connecting end, and multiple limiting blocks are fixedly installed inside the positioning blocks. Multiple anti-wear balls are movably connected inside the positioning blocks. This highly wear-resistant automotive engine connecting rod utilizes solid stainless steel spherical structures for the anti-wear balls. The multiple equidistant anti-wear balls fit snugly against the crankshaft on both sides of the connecting rod body, effectively isolating the wear points between the connecting rod body and the crankshaft, reducing wear on the connecting rod itself, and increasing the service life of the highly wear-resistant automotive engine connecting rod.

[0004] However, the stability of the engine connecting rods disclosed above is generally poor. When the connecting rod is subjected to longitudinal tensile force, the mounting base is prone to loosening and damage, and it is inconvenient to disassemble and assemble, lacking a quick locking structure. Utility Model Content

[0005] The purpose of this invention is to provide a highly wear-resistant engine connecting rod to address the problems in the prior art, such as the general stability of the engine connecting rod, the ease with which the mounting base can loosen and be damaged when the connecting rod is subjected to longitudinal tensile force, the inconvenience of disassembly and assembly, and the lack of a quick-locking structure.

[0006] To achieve the above objectives, the technical solution of this utility model is as follows: a highly wear-resistant engine connecting rod, comprising a main body, with a large connecting end and a small connecting end respectively provided at both ends of the main body; a limiting protrusion ring is provided on the inner wall of the large connecting end, and a bearing is movably mounted on the top of the limiting protrusion ring; a mounting cavity coaxial with the bearing is provided on the top of the large connecting end; multiple sets of screws are fixedly provided on the top of the mounting cavity, and a positioning cover for limiting the bearing is installed in the mounting cavity, with multiple sets of insertion holes provided on the positioning cover; a positioning nut is also provided on the screw.

[0007] As a further improvement of this utility model: multiple sets of moving cavities communicating with the insertion hole are opened on the edge of the positioning cover, a locking member is movably installed in the moving cavity, and a limiting groove that cooperates with the locking member is opened on the outer wall of the screw.

[0008] As a further improvement of this utility model: symmetrical reset grooves are provided on the inner walls of both sides of the motion cavity, and horizontal plates are provided on both sides of the locking member, with a reset spring connected to the bottom of the horizontal plate.

[0009] As a further improvement of this utility model: a threaded ring is threadedly installed on the outer wall of the positioning cover, and multiple sets of protrusions are provided on the outer wall of the threaded ring.

[0010] Compared with the prior art, the present invention has the following beneficial effects:

[0011] This invention enables quick bearing installation via a limiting protrusion ring and a positioning cover. During installation, the bearing is first quickly positioned using a screw and a socket, and then the threaded ring is installed. When the threaded ring presses against the locking components, multiple sets of locking components move inward and re-lock the limiting groove on the screw. This design improves the strength, wear resistance, and practicality of the highly wear-resistant engine connecting rod. Attached Figure Description

[0012] The present invention will be further explained below with reference to the accompanying drawings and embodiments:

[0013] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0014] Figure 2 This is a three-dimensional structural diagram of the main body of this utility model;

[0015] Figure 3 This is a three-dimensional structural diagram of the positioning cover in this utility model;

[0016] Figure 4 This is a cross-sectional view of the positioning cover in this utility model.

[0017] Explanation of reference numerals in the attached figures:

[0018] 1. Main body; 2. Connecting large end; 201. Limiting protrusion ring; 202. Mounting cavity; 203. Bearing; 204. Screw; 205. Limiting groove; 206. Positioning cover; 207. Insertion hole; 208. Nut; 209. Moving cavity; 210. Reset groove; 211. Locking element; 212. Horizontal plate; 213. Reset spring; 214. Threaded ring; 215. Protrusion; 3. Connecting small end. Detailed Implementation

[0019] The following will be combined with the appendix Figures 1 to 4The technical solution of this utility model has been clearly and completely described. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0020] This invention provides an improved, highly wear-resistant engine connecting rod, such as... Figures 1-4 As shown, the device includes a main body 1, with a large connecting end 2 and a small connecting end 3 at both ends. A limiting protrusion ring 201 is provided on the inner wall of the large connecting end 2, and a bearing 203 is movably mounted on the top of the limiting protrusion ring 201. A mounting cavity 202 coaxial with the bearing 203 is provided on the top of the large connecting end 2. Multiple sets of screws 204 are fixedly provided on the top of the mounting cavity 202. A positioning cover 206 for limiting the bearing 203 is installed inside the mounting cavity 202, and multiple sets of insertion holes 207 are provided on the positioning cover 206. A positioning nut 208 is also provided on the screws 204.

[0021] This invention enables the quick installation of the bearing 203 via a limiting protrusion ring 201 and a positioning cover 206. During installation, the bearing is first quickly positioned using a screw 204 and a socket 207, and then the threaded ring 214 is installed. When the threaded ring 214 presses against the locking member 211, multiple sets of locking members 211 move inward and re-lock the limiting groove 205 on the screw 204. This design improves the strength, wear resistance, and practicality of the highly wear-resistant engine connecting rod.

[0022] See appendix Figure 1 - Appendix Figure 3 The positioning cover 206 has multiple sets of moving cavities 209 that communicate with the insertion hole 207 on its edge. A locking member 211 is movably installed in the moving cavity 209. A limiting groove 205 that cooperates with the locking member 211 is provided on the outer wall of the screw 204.

[0023] In this embodiment: When installing the positioning cover 206, first insert the screw 204 into the insertion hole 207 and fix it with the nut 208. Finally, install the threaded ring 214. When the threaded ring 214 compresses the multiple sets of locking members 211, the locking members 211 slide along the moving cavity 209 towards the center and insert into the limiting groove 205 to complete the re-locking. At this time, the return spring 213 is compressed.

[0024] See appendix Figure 4 Symmetrical reset grooves 210 are provided on the inner walls of both sides of the motion cavity 209. Horizontal plates 212 are provided on both sides of the locking member 211, and a reset spring 213 is connected to the bottom of the horizontal plate 212.

[0025] In this embodiment: In order to ensure that the locking component 211 automatically resets and unlocks, a reset spring 213 structure is designed.

[0026] See appendix Figure 1 A threaded ring 214 is threadedly installed on the outer wall of the positioning cover 206, and multiple sets of protrusions 215 are provided on the outer wall of the threaded ring 214.

[0027] In this embodiment: when the threaded ring 214 is disassembled, the locking member 211 automatically pops out and unlocks the screw 204 under the action of the return spring 213. A protrusion 215 structure is designed to facilitate the rotational installation of the threaded ring 214.

[0028] The above description of the disclosed embodiments enables those skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention is not to be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and inventive features disclosed herein.

Claims

1. A highly wear-resistant engine connecting rod, characterized in that: The device includes a main body (1), with a large connecting end (2) and a small connecting end (3) at its two ends respectively. A limiting protrusion ring (201) is provided on the inner wall of the large connecting end (2), and a bearing (203) is movably installed on the top of the limiting protrusion ring (201). A mounting cavity (202) coaxial with the bearing (203) is provided on the top of the large connecting end (2). Multiple sets of screws (204) are fixedly provided on the top of the mounting cavity (202). A positioning cover (206) for limiting the bearing (203) is installed in the mounting cavity (202), and multiple sets of insertion holes (207) are provided on the positioning cover (206). A positioning nut (208) is also provided on the screw (204).

2. The high wear-resistant engine connecting rod according to claim 1, characterized in that: The positioning cover (206) has multiple sets of motion cavities (209) that communicate with the insertion hole (207) on its edge. A locking member (211) is movably installed in the motion cavity (209). A limiting groove (205) that cooperates with the locking member (211) is provided on the outer wall of the screw (204).

3. The high wear-resistant engine connecting rod according to claim 2, characterized in that: Symmetrical reset grooves (210) are provided on the inner walls of both sides of the motion cavity (209), and horizontal plates (212) are provided on both sides of the locking member (211), with a reset spring (213) connected to the bottom of the horizontal plate (212).

4. The high wear-resistant engine connecting rod according to claim 1, characterized in that: A threaded ring (214) is threadedly installed on the outer wall of the positioning cover (206), and multiple sets of protrusions (215) are provided on the outer wall of the threaded ring (214).

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