Wear-resistant engine connecting rod

Abstract

The utility model relates to the technical field of engine connecting rods, and discloses a wear-resistant engine connecting rod which comprises a rod body, a connecting rod big end and a connecting rod small end, a connecting rod cover is detachably connected to the side, away from the rod body, of the connecting rod big end, and connecting blocks are fixedly connected to the two ends of the inner side wall of the connecting rod big end and the two ends of the inner side wall of the connecting rod cover. Clamping grooves are formed in the inner sides of the connecting blocks, nesting holes are formed in the center positions of inner cavities of the clamping grooves, and threaded connecting holes are formed in the center positions of inner cavities of the nesting holes; the tight connection effect between the wear-resistant tile shaft and the connecting rod big end and between the wear-resistant tile shaft and the connecting cover is achieved by arranging the clamping structure, the phenomenon that the wear-resistant tile shaft is loosened or falls off due to abrasion is avoided, the wear resistance in use is ensured, and the service life of the connecting rod is prolonged.

Description

Technical Field

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

[0002] In the movement of a car, the engine provides power, converting the reciprocating motion of the piston into rotational motion of the crankshaft via the connecting rod. The crankshaft's rotation outputs torque to drive the flywheel. The function of the connecting rod is to connect the piston and crankshaft, transmitting the force on the piston to the crankshaft and converting the piston's reciprocating motion into the crankshaft's rotational motion. The connecting rod assembly consists of the connecting rod body, connecting rod big end cap, connecting rod small end bushing, connecting rod big end bearing, and connecting rod bolts (or screws).

[0003] Existing engine connecting rods typically have a connecting hole at the big end for crankshaft installation. When the crankshaft moves within the connecting rod big end, the inner wall of the connecting hole is prone to wear. Over time, this can cause the gap between the two to widen, which can lead to loosening or falling off of the connecting rod big end bearing. This affects the transmission between the big end and the crankshaft, increasing friction, wear rate, and service life. To address this, we propose a wear-resistant engine connecting rod. Utility Model Content

[0004] The main objective of this invention is to provide a wear-resistant engine connecting rod that can effectively solve the problems in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a wear-resistant engine connecting rod, comprising a rod body, a connecting rod big end, and a connecting rod small end. A connecting rod cap is detachably connected to the side of the connecting rod big end away from the rod body. Connecting blocks are fixedly connected to both ends of the inner sidewalls of the connecting rod big end and the connecting rod cap. A slot is provided on the inner side of each connecting block. A nesting hole is provided at the center of the inner cavity of the slot. A threaded connection hole is provided at the center of the inner cavity of the nesting hole, and the threaded connection hole extends laterally through the connecting block. A spring is detachably nested in the inner cavity of the nesting hole. Wear-resistant bearings are detachably connected to the inner sides of both the connecting rod big end and the connecting rod cap. A retaining plate adapted to the slot is fixedly connected to both sides of the wear-resistant bearing. A through hole is provided at the center of the retaining plate. Oil collection components are provided on both sides of the rod body.

[0006] Preferably, the oil collecting assembly includes an oil collecting groove, a sliding groove, and a slider. The oil collecting groove is provided on both sides of the rod body, and the sliding groove is provided on both sides of the bottom end of the oil collecting groove. The slider is slidably provided inside the sliding groove.

[0007] Preferably, the inner cavity of the oil collecting groove is provided with a second oil guide hole at one end of the connecting rod small end, and the second oil guide hole is interconnected with the inner cavity of the connecting rod small end. The inner cavity of the oil collecting groove is provided with a first oil guide hole on one side of the connecting rod big end, and the first oil guide hole extends through the connecting rod big end to the inner cavity of the connecting rod big end.

[0008] Preferably, the small end cavity of the connecting rod is detachably connected to a wear-resistant bushing, and the inner side wall of the wear-resistant bushing is provided with heat dissipation holes.

[0009] Preferably, one end of the connecting block on one side of the connecting rod cover is threadedly connected to a fastening bolt through a threaded connection hole.

[0010] Preferably, the surfaces of the rod body, the big end of the connecting rod, and the small end of the connecting rod are coated with a wear-resistant coating.

[0011] Preferably, reinforcing ribs are fixedly connected at the connection points between the rod body and the big end and small end of the connecting rod.

[0012] Compared with the prior art, the beneficial effects of this utility model are:

[0013] 1. This utility model utilizes a combination of slots, nesting holes, springs, locking plates, and through holes. During use, the spring is pre-nested inside the nesting hole, and the wear-resistant bearing is then engaged with the slots on the inside of the connecting rod big end and the connecting blocks on both sides of the connecting rod via locking plates fixed on both sides. After engagement, the connecting rod big end and the connecting rod cover are fixed together with fixing bolts. This ensures that the wear-resistant bearing can be engaged inside the connecting rod small end and the connecting rod big end during use, preventing it from falling off. Furthermore, the spring action allows the wear-resistant bearing to fit tightly against the crank, ensuring stability during rotation, effectively resisting wear, and improving service life.

[0014] 2. This utility model utilizes the cooperation of an oil collection groove, a sliding groove, a slider, a first oil guide hole, and a second oil guide hole. During the use of the connecting rod, oil will splash into the oil collection groove. As the connecting rod moves up and down, it will use inertia to drive the slider in the sliding groove to slide up and down. During the sliding process, the oil in the oil collection groove will move to both sides and then enter the big end and small end of the connecting rod through the first oil guide hole and the second oil guide hole on both sides, thereby achieving a lubrication effect, reducing the friction of the engine connecting rod during operation, further improving wear resistance, and extending service life. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0016] Figure 2 This is a partial structural schematic diagram of the connecting rod big end of this utility model;

[0017] Figure 3This is a partial structural diagram of the rod body and connecting rod small end of this utility model.

[0018] In the diagram: 1. Rod body; 2. Connecting rod small end; 3. Connecting rod big end; 4. Reinforcing rib; 5. Wear-resistant bushing; 6. Heat dissipation hole; 7. Connecting rod cap; 8. Connecting block; 9. Fastening bolt; 10. Wear-resistant bearing; 11. First oil guide hole; 12. Nested hole; 13. Threaded connection hole; 14. Spring; 15. Slot; 16. Slot plate; 17. Through hole; 18. Oil collection groove; 19. Slide groove; 20. Slider; 21. Second oil guide hole. Detailed Implementation

[0019] 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

[0020] Please see Figure 1 - Figure 3 The diagram shows a wear-resistant engine connecting rod, including a rod body 1, a connecting rod big end 3, and a connecting rod small end 2. A connecting rod cap 7 is detachably connected to the side of the connecting rod big end away from the rod body 1. Connecting blocks 8 are fixedly connected to both ends of the inner walls of the connecting rod big end 3 and the connecting rod cap 7. A slot 15 is provided inside the connecting block 8. A nesting hole 12 is provided at the center of the cavity of the slot 15. A threaded connection hole 13 is provided at the center of the cavity of the nesting hole 12, and the threaded connection hole 13 passes through the connecting block 8 laterally. A spring 14 is detachably nested inside the cavity of the nesting hole 12. Wear-resistant bearings 10 are detachably connected to the inner sides of the connecting rod big end 3 and the connecting rod cap 7. Both sides of the wear-resistant bearing 10 are fixedly connected to a component that matches the slot 15. The included clamping plate 16 has a through hole 17 at its center, and oil collection components are provided on both sides of the rod body 1. The spring 14 is pre-nested inside the nesting hole 12. The wear-resistant bearing 10 is then clamped into the slots 15 opened inside the connecting rod big end and the connecting blocks 8 on both sides of the connecting rod by the clamping plates 16 fixed on both sides. After clamping, the connecting rod big end and the connecting rod cover 7 are fixed together by fixing bolts. This ensures that the wear-resistant bearing 10 can be clamped inside the connecting rod small end 2 and the connecting rod big end 3 during use, preventing it from falling off. Under the action of the spring 14, the wear-resistant bearing 10 can be tightly attached to the crank, ensuring stability during rotation, effectively resisting wear, and improving service life.

[0021] The oil collection assembly includes an oil collection groove 18, a sliding groove 19, and a slider 20. Oil collection grooves 18 are formed on both sides of the rod body 1. Sliding grooves 19 are formed on both sides of the bottom end of the inner cavity of the oil collection groove 18. A slider 20 slides inside the sliding grooves 19. A second oil guide hole 21 is formed at one end of the inner cavity of the oil collection groove 18 located at the small end 2 of the connecting rod, and the second oil guide hole 21 is interconnected with the inner cavity of the small end 2 of the connecting rod. A first oil guide hole 11 is formed on one side of the inner cavity of the oil collection groove 18 located at the large end 3 of the connecting rod. The oil extends through the big end 3 of the connecting rod and into the inner cavity of the big end 3; the oil body splashes into the oil collection groove 18, and during the up and down movement of the connecting rod, it will use inertia to drive the slider 20 in the slide groove 19 to slide up and down, and during the sliding process, it will push the oil body in the oil collection groove 18 to move to both sides, and then enter the big end 3 and the small end 2 of the connecting rod through the first oil guide hole 11 and the second oil guide hole 21 opened on both sides, thereby playing a lubricating role, reducing the friction of the engine connecting rod during operation, and further improving wear resistance.

[0022] Among them, the inner cavity of the small end 2 of the connecting rod is detachably connected to a wear-resistant bushing 5, and the inner side wall of the wear-resistant bushing 5 is provided with heat dissipation holes 6; the heat dissipation holes 6 can improve the heat dissipation of the wear-resistant bushing 5 during use, avoid the increase of friction due to excessive temperature, and effectively improve wear resistance.

[0023] Among them, one end of the connecting block 8 on one side of the connecting rod cover 7 is threadedly connected to the fastening bolt 9 through the threaded connection hole 13. The surfaces of the rod body 1, the big end 3 of the connecting rod, and the small end 2 of the connecting rod are coated with a wear-resistant coating. The connecting points of the rod body 1 with the big end and the small end 2 of the connecting rod are all fixedly connected with reinforcing ribs 4. The wear-resistant coating can improve the wear resistance of the three components, thereby extending their service life. The reinforcing ribs 4 can improve the structural strength of the connecting rod body, preventing it from easily breaking and effectively improving its service life.

[0024] It should be noted that this utility model is a wear-resistant engine connecting rod. The spring 14 is pre-nested inside the nesting hole 12. The wear-resistant bearing 10 is then engaged with the guide connecting rod big end and the connecting rod connecting blocks 8 on both sides of the slot 15 opened inside by the clamping plates 16 fixed on both sides. Then, the two are engaged with the crank and fixed with the fastening bolts 9. In this way, the wear-resistant bearing 10 can be engaged inside the connecting rod small end 2 and connecting rod big end 3 during use, preventing it from falling off. Under the action of the spring 14, the wear-resistant bearing 10 can be tightly attached to the crank, ensuring the stability during rotation. The connecting rod small end 2 is connected to the piston through the pin, and the piston can be connected by internal disassembly. The wear-resistant bushing 5 can improve wear resistance and effectively dissipate heat through the heat dissipation holes 6 on the wear-resistant bushing 5 during use, thereby avoiding excessive temperature and increased friction. During use, the oil will splash into the oil collection groove 18, and during the up and down movement of the connecting rod, it will use inertia to drive the slider 20 in the slide groove 19 to slide up and down. During the sliding, it will push the oil in the oil collection groove 18 to move to both sides, and then enter the big end 3 and small end 2 of the connecting rod through the first oil guide hole 11 and the second oil guide hole 21 opened on both sides, thereby achieving a lubrication effect, reducing the friction of the engine connecting rod during operation, further improving wear resistance, and extending service life.

[0025] 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 a process, method, article, or apparatus.

[0026] 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 wear-resistant engine connecting rod, comprising a rod body (1), a connecting rod big end (3), and a connecting rod small end (2), characterized in that: A connecting rod cap (7) is detachably connected to the side of the connecting rod big end (3) away from the rod body (1). Connecting blocks (8) are fixedly connected to both ends of the inner sidewalls of the connecting rod big end (3) and the connecting rod cap (7). A slot (15) is opened on the inner side of the connecting block (8). A nesting hole (12) is opened at the center of the inner cavity of the slot (15). A threaded connection hole (13) is opened at the center of the inner cavity of the nesting hole (12). The threaded connection hole (13) passes through the connecting block (8) laterally. A spring (14) is detachably nested in the inner cavity of the nesting hole (12). Wear-resistant bearings (10) are detachably connected to the inner sides of the connecting rod big end (3) and the connecting rod cap (7). A card plate (16) that matches the slot (15) is fixedly connected to both sides of the wear-resistant bearing (10). A through hole (17) is opened at the center of the card plate (16). An oil collection assembly is opened on both sides of the rod body (1).

2. The wear-resistant engine connecting rod according to claim 1, characterized in that: The oil collection assembly includes an oil collection groove (18), a sliding groove (19) and a slider (20). The oil collection groove (18) is provided on both sides of the rod body (1). The sliding groove (19) is provided on both sides of the bottom of the inner cavity of the oil collection groove (18). The slider (20) is slidably provided inside the sliding groove (19).

3. A wear-resistant engine connecting rod according to claim 2, characterized in that: The inner cavity of the oil collection groove (18) is provided with a second oil guide hole (21) at one end of the connecting rod small end (2), and the second oil guide hole (21) is interconnected with the inner cavity of the connecting rod small end (2). The inner cavity of the oil collection groove (18) is provided with a first oil guide hole (11) on one side of the connecting rod big end (3), and the first oil guide hole (11) extends through the connecting rod big end (3) to the inner cavity of the connecting rod big end (3).

4. A wear-resistant engine connecting rod according to claim 1, characterized in that: The inner cavity of the small end (2) of the connecting rod is detachably connected to a wear-resistant bushing (5), and the inner side wall of the wear-resistant bushing (5) is provided with heat dissipation holes (6).

5. A wear-resistant engine connecting rod according to claim 1, characterized in that: One end of the connecting block (8) on one side of the connecting rod cover (7) is threadedly connected to a fastening bolt (9) through a threaded connection hole (13).

6. A wear-resistant engine connecting rod according to claim 1, characterized in that: The surfaces of the rod body (1), the big end (3) of the connecting rod, and the small end (2) of the connecting rod are coated with a wear-resistant coating.

7. A wear-resistant engine connecting rod according to claim 1, characterized in that: The rod body (1) is fixedly connected to the connecting rod big end (3) and connecting rod small end (2) with reinforcing ribs (4).

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